Showing papers on "Collar published in 1985"

Quick change mechanism for circular saw blades and other spinning disc devices

Abstract: In one embodiment of this quick change mechanism, a narrow six spline hub is installed in the arbor hole of a circular saw blade or other disc tool heads such as grinders, sanders and buffers. This hub slides onto a matching splined drive shaft in which a narrow section of spline lands has been removed circumferentially to fit the width of the splined hub that is secured to the circular saw blade. A fifteen degree rotation of this splined blade hub on this shaft aligns all the lands and grooves, thus locking the hub relative the longitudinal axis of the drive shaft. To continue the locking, by locking the hub in rotation relative to the shaft, a splined sliding collar with spline land extensions, serving as locking fingers, is interposed into the spline grooves of the drive shaft and also the hub grooves. A blind longitudinal hole in the drive shaft contains a compression spring and an unthreaded bolt. A pin inserted through: a hole in the sliding collar; a longitudinal slot in the drive shaft; and a hole in the central bolt, insures the sliding collar will move with the central bolt. The shaft slot limits the fore and aft movement of the sliding collar during locking to that axial distance required for the locking and unlocking functions. The spring keeps the sliding collar and its extensions in the forward locked position, and the head of the bolt extended out of the shaft end. Removal of the blade is done by pressing the bolt head toward the shaft, thereby clearing the locking fingers as the sliding collar is moved. Then the blade is rotated fifteen degrees to place hub spline lands into the drive shaft grooves. The blade is then ejected by spring pressure. Circular saw blade changes therefore are made in seconds without the use of tools, by utilizing this embodiment and other embodiments of this quick change mechanism.

Adjustable electric outlet box

Abstract: An adjustable electrical outlet box attachment for use on conventional electrical junction boxes includes a mounting plate dimensioned for mounting on a conventional electrical junction box, a collar open at the front and rear ends and disposed on the mounting plate about a central opening therein, a box frame mounted to slide forwardly and rearwardly within the collar and to contact the sidewalls of the collar, and adjustment screws mounted within the box frame to connect the frame and either the collar or the mounting plate so that when the screw is rotated in one direction, the box frame is caused to move outwardly of the collar, and when rotated in the other direction, the box frame is caused to move toward the collar.

Stage cementing apparatus

Abstract: A stage collar for stage cementing a well casing includes a slidable closing sleeve having ports alignable with ports in the stage collar case. These closing sleeve and stage collar ports communicate with an annulus around the well casing when the stage collar is open. A shift sleeve closes the ports during running in and is actuable by simple drill pipe movements to open and reclose the stage collar ports. The shift sleeve is operably coupled to the closing sleeve by a latch ring which locks the closing sleeve closed and cooperated therewith to form a smooth and substantially uniform inner stage collar bore. The drill pipe is operably connected to the stage collar by a screw-in or latch-in shifting tool which cooperates with the stage collar elements to form a fluidtight passage from the drill pipe to the annulus without entering the well casing interior. A dual stage shifting tool is also shown which permits a two-stage cementing operation to be performed with only one run down the hole.

Neck protection device with occupant of a high performance vehicle

Abstract: A neck protection device (10)for a driver (10) or other occupant of a high performnace vehicle adapted to reduce motions or loading in the neck and upper torso is described. The device includes in combination a stiff yoke (12) with a high collar (11) extending up from the yoke and a set of tethers (15, 15a and 15b) for attachment to the lateral and rear portions of a helmet (16) and collar. The high collar extends upward to adjacent the center of gravity of the head and helmet which is at about eye level of the occupant. The tethers on the collar allow needed head movements and yet reduce the potential for fatigue and crash injury by carrying forces which would otherwise be transmitted through the neck and by reducing extreme motions of the neck.

A comparison of methods of cervical immobilization used in patient extrication and transport.

Abstract: We radiographically studied the efficacy of seven methods of cervical immobilization used in the prehospital setting. The methods were: Philadelphia collar, Hare extrication collar, rigid plastic collar, Philadelphia collar + short board, Hare extrication collar + short board, rigid plastic collar + short board, and the short board used alone. Ninety-seven normal volunteers were randomized to one of these seven methods and each volunteer served as his or her own control. Efficacy was expressed as per cent reduction of baseline movement in the sagittal, frontal, and horizontal planes. The short-board technique appeared to be superior to all the three collars studied. The collars provided no augmentation of immobilization over that provided by the short board alone. We believe that the short-board technique described herein, which is commonly used in the prehospital setting, can be used as the standard of comparison against which newer prehospital devices can be objectively compared.

Keyless impacting chuck

Abstract: A keyless chuck for a power drill having a drive spindle projecting from the drill housing. The chuck body is fixed on and rotatable with the spindle and has a plurality of jaws mounted for movement on axes inclined with respect to the spindle axis. The collar is mounted for rotation with and with respect to said body and has a split nut connected to the jaws to move them on said axes to grip or release a tool shank when there is relative rotation between said collar and said body. A ring is splined on the housing and is spring biased toward the housing. The ring is manually movable toward the collar to bring the axially projecting lugs on the ring in engagement with lugs on the collar to retard the collar from rotating which causes relative rotation between the body and the collar when the body is rotated. Inclined faces on the lugs force the lugs apart when movement of the jaws is prevented and the lugs cause an impacting action to overcome static friction. In one embodiment the splined ring includes a dished spring seat which has apertures for support fingers to project through from the gear case. A C-ring is fixed in the fingers to serve as a seat for a spring compressed between the C-ring and the dished seat. In the preferred embodiment a resilient retainer having a U or channel cross section has an angular segment removed so it can be flexed to a small diameter to pass under a shoulder projecting inwardly from the ring. This enables the retainer to be fixed to the gear case by engaging an inner groove and to also retain a bearing in place. The compressed biasing spring acts between the shoulder and the retainer wall nearer the chuck and the spring is prevented from contacting a rotating surface.

Multi-position eyebolt

Abstract: For lifting loads there is provided an eyebolt with a collar swivelly mounted on a stud so as to freely rotate in a horizontal plane throughout a full 360°. A lifting ring has oppositely disposed pivot pins in swivel engagement with the collar to allow the ring to pivot in a vertical arc as well as to rotate about the stud. The stud in turn is adapted to be anchored in fixed position to the load, whatever the load may be. Enlargements at free ends of the pivot pins serve to resist pulling the pins free of the collar when a heavy lifting force is applied to the lifting ring.

Keyless tool chuck

Abstract: A keyless tool chuck is disclosed which may be used with most power tools having standard chucks The jaws of the chuck are displaced and retracted by controlling the rotation of a threaded collar which surrounds the jaws relative to the rotation of the tool shaft and the jaws This rotation is controlled by displacing a plate so as to control rotation of the collar in a first embodiment In a second embodiment, rotation of the chuck collar is controlled by a clutch means, and in a third embodiment the rotation of the chuck collar is controlled relative to the jaws by means of vanes which are inserted into a grooved cylinder attached to the chuck collar

Cervical collar permitting tracheotomy

Abstract: A cervical collar having front and rear halves removably connected together provides for the possibility of a tracheotomy via an opening in the front half so as to permit access to a person's trachea. The collar provides sufficient support so as to restrict the cervical region without hyperextension of the neck thereby avoiding further injury.

Bottle closure with separable capsule

Abstract: A container for holding contents as two separate components which can be mixed together later. The container comprises a cup positioned in a neck of the container for receiving a first of the components; a screwcap coordinated with the neck of the container and having a collar extending into the cup, a front edge of said collar forming a strike edge for separating the cup in the region of a line of intended breakage upon a further screwing on of the screwcap beyond a basic position for storage; and a wall of the cup has an annular step, and the strike edge of the collar comes flush on the annular step on the wall of the cup, the step--forming the place of intended breakage--being located at a distance above the bottom of the cup, there being a bead extending towards an outer surface of the collar and projecting inwardly from the inner surface of the wall of the cup, the step lying below said bead; and a clip shoulder is disposed on the collar and engages the bead of the cup wall.

Improved heat sink and shaft bearing support for thermo-plastic housing

Abstract: An improved heat sink and bearing support arrangement for an armature shaft of an electric motor in an electrically actuated device which comprises a thin walled body fabricated by sheet metal processes. In a preferred embodiment, the support body has a generally mushroom shaped configuration which includes integrally formed central, shoulder and collar segments. A bearing body is supported by the central segment and the collar segment engages a housing for supporting the assembly in the device.

Arangement for fastening a rolling bearing in a housing

Abstract: A spring ring is arranged in an annular gap of a pair of outer bearing rings in an arrangement for fastening a rolling bearing in the bore of a housing. A groove is provided in the housing for receiving the spring ring. A holding ring is mounted on the outer surface of the bearing outer ring, the holding ring having a collar aligned to hold the spring ring within the annular gap during the disassembled condition of the bearing. The holding ring has an axial surface adapted to engage the end of the housing during assembly, to enable the holding ring to be forced axially along the outer surface of the bearing outer ring. The holding ring futher has an end away from the spring ring adapted to form a seal with the bearing inner ring.

Press fit filter

Abstract: A filter suitable for press fitting into an assembly for inline filtration is disclosed. The filter includes a base, filtration material supported on the base, and a metal collar surrounding at least a portion of the base with a portion of the metal collar embedded in the base. The leading edge of the collar and anchor tabs on the distal end of the collar are embedded in the base and thus secure the collar to the base. The collar also has a rounded entry corner which provides a smooth entry into the press fit hole when the filter is pressed into place.

Firefighter's suit with waterproof collar

Abstract: A firefighter's coat includes (1) a body portion comprised of a flame-resistant shell and a heat-resistant liner, (2) a collar portion comprised of a flame-resistant outer collar part and a fire-resistant inner collar part, the upper edge of the shell being stitched to the lower edge of the outer collar part to provide an outer neckline of the coat, the upper edge of the liner being stitched to the lower edge of the inner collar part to help provide an inner neckline of the coat, and (3) a waterproof interliner which extends from between the shell and the liner of the body portion upwardly between the outer and inner necklines without connection thereto except possibly at their opposite ends, and then between the outer and inner collar parts of the collar portion so as to provide a moisture barrier which prevents water which has seeped through the stitching along the outer neckline from penetrating through the coat to contact the wearer.

Device for embedding in bone, in particular a femoral hip-joint prosthesis

Abstract: A device for embedding in bone, in particular as a femoral hip-joint prosthesis, comprises a head part, a stem to be anchored in the bone, and a support collar terminating the stem at the head end. In order to make it easy for the surgeon, on reoperation, to remove the prosthesis stem from the bone tissue, the support collar can be removed. In addition, it can be combined with an anchor for attachment to the greater trochanter. By this means, on the one hand, the support collar is fixed in the envisaged position and, on the other hand, the greater trochanter participates with the adjacent lateral areas of the bone in taking up the load.

System and method for mechanically joining handrailing members

Abstract: A mechanical joint for interconnecting rail members having a male end on one of the rail members, a female end on the other rail member, and an annular collar for constraining longitudinal movement. The male member has an external circumferential groove for receiving the annular collar. The female end has an internal circumferential groove which aligns with both the annular collar and the external circumferential groove on the male end.

Pet collar/leash

Abstract: A collar/leash combination for pets wherein a flexible member with a buckle attached to one end so that a collar can be formed by inserting the other end of the member through the buckle. Velcro material or loops are used to keep the leash section of the member wound around the pet's collar when the leash is not in use. A handle loop is formed at the other end of the flexible member. An alternate embodiment uses a pouch to keep the leash in place, attached to the pet's collar.

Cardiac valve prosthesis

Abstract: A cardiac valve prosthesis including an annular body having a valving member and a suturing collar. The collar has a V-shaped groove in which is mounted a movable disc segment intended for covering calcinosis. There is provided a cord for retaining the disc segment in a desired angular position relative to the suturing collar.

Screw-topped containers having safety means

Abstract: A bottle with a neck (1) has a child-resistant screw closure cap (13). In order to make the cap (13) child-resistant, the neck (1) is fitted with a collar (7) of U-shaped cross-section. The collar (7) is retained on the neck (1) by engagement of pawls (11) inside a portion (8) of the collar under a retaining ring (2) on the neck (1). The cap (13) is screwed onto the part (8) of the collar and to allow this to be done, the collar (7) is prevented from rotating on the neck (1) by engagement of the pawls (11) with ratchet teeth (4) on the outside of the neck (1). The pawls (11) and the ratchet teeth (4) are so shaped that if an attempt is made to unscrew the cap (13) merely by turning it in a counter-clockwise direction as seen from above, the pawls (11) ride over the ratchet teeth (4) so that the collar (7) is lifted on the neck (1) and is free to rotate. To enable the cap (13) to be unscrewed, the cap must be pressed downwards while it is rotated in a counter-clockwise direction to hold the pawls (11) in engagement with the ratchet teeth (4) and thus prevent the collar (7) from turning on the neck (1).

Ear tag for marking animals

Abstract: The ear tag comprises a male part having a stem with a head portion at one end, the head portion forming an external shoulder, and a female part with an opening through which the head portion can be passed. The area surrounding the opening forms a shoulder which engages with the shoulder formed by the head portion to lock the head portion in place. A hollow boss is formed with the female part and encloses the opening and head portion when it has been passed through the opening. A collar is located within the boss, this collar having an internal rim which abuts the shoulder of the female part. The collar is deformable to enable said head portion, when engaged through said opening, to pass the internal rim and become located with the collar such as to be retained by the collar within the boss.

Segmented concentric centralizer

Abstract: A conduit centralizer comprises segmented, sliding upper and lower collars connected by a plurality of axially extending, outwardly bowed leaf springs. Each collar is formed by the hinged connection on a plurality of segments in close fitting contact with the outer diameter of a pipe. The ends of the leaf springs are respectively inserted within the individual segments and welded to the segments. Individual collar segment sections or subassemblies comprising upper and lower collar segments secured to a single intermediate bowed leaf spring can then be interconnected to form a concentric centralizer.

Closures for containers

Abstract: A tear open plastics closure for a can end having a pouring aperture and a venting aperture comprises respective annular collar portions fitting in an airtight manner in the apertures and plugs rupturably sealed over the mouths of the collars and capable of being forced back into the collars to re-seal the apertures, the plugs being connected together by a connecting member which is flexibly connected (e.g. by a step piece and a yoke) to one of the collar portions. The connections between each collar portion and the other parts of the closure ensure that the collar portions can tilt and move laterally relative to one another. For example, the collar portions may have no direct connection with one another but be attached solely to the plugs and by the flexible connection of one collar portion to the connecting member. Alternatively they may be connected by a narrow flexible bridge.

Setting tool for a well tool

Abstract: In a PBR system in well bores, a retrievable landing assembly which can be set either mechanically or hydraulically has a telescopic setting sleeve and setting collar where the setting collar is interconnected to a setting tool by a first threaded nut member and a second threaded nut member. The setting tool is threadedly attached by one of the threaded nut members to the setting collar and the one threaded nut member is splined for longitudinal movement with respect to a mandrel of the setting tool while the other nut member is longitudinally and releasably splined to the setting collar and threadedly attached to the mandrel of the setting tool. The setting tool has a shiftable sleeve member which can be shifted by a pressure ball and applied pressure to shift the setting sleeve of the landing assembly into a locking position in the setting collar. Alternatively, one of the nut members can be operated to release the mandrel of the setting tool relative to the setting collar of the land assembly so that weight can be applied through the tubing string to the mandrel and the shiftable sleeve member to the setting sleeve of the landing assembly.

Centrifugal spring clutch

Abstract: A normally engaged wrap spring clutch includes a helical spring which normally is wrapped down on the outer surfaces of aligned input and output hubs to couple the latter. One end of the spring is anchored on the input hub and the other end is secured to a control collar which is telescoped over the spring so that, by turning the control collar relative to the input hub, the spring is unwrapped from the surfaces of the hubs to disengage the clutch. Pins project longitudinally into radial slots in the input hub and spiral slots in the control collar and have substantial mass so that, when the input hub reaches a preselected speed, the pins move radially outward under centrifugal force and, through a camming action in the spiral grooves, turn the control collar relative to the input hub thereby unwrapping the spring. In an alternative embodiment, the outwardly moving pins turn the control collar to cause the spring to wrap down and cause engagement of a normally disengaged clutch.

Reusable cup holder

Abstract: This invention is directed towards a cup holder for cooperative association with a cup comprising (a) an upper expansible collar portion to receive and retain therein, in a releasable friction fit, a portion of the sidewall of the cup adjacent the upper collar portion; (b) a spaced, cooperating lower extending support portion having an upper surface adapted to frictionally and releasably engage and retain the bottom of the cup thereon; and (c) an intermediate depending, extending, shank portion outwardly spaced from the upper collar portion and the lower extending support portion forming a hand-graspable surface or handle, spaced from the exterior of the cup. In an alternate embodiment, the handle is releasably secured to the upper collar portion and the lower extending support portion.

Turbo fan vent

Abstract: A turbo fan vent for use on the roof of a building and having a close-louvered low profile turbine affixed to a rotary shaft which is rotationally supported by bracing and bearing means associated with a lower concentric collar. The collar is spaced inwardly of said turbine and is vertically overlapped by the turbine. The rotary shaft carries a large fan blade assembly arranged within said collar. The collar has a diameter substantially less than the side wall of the turbine whereby to create a large passageway for effective air ventilation. The turbine is freely rotatable by wind currents to rotate the exhaust fan assembly to draw air upwardly through said collar and outwardly through the passageway. The collar is adapted to be mounted onto a complementarily shaped stack adaptor affixed to the roof of a structure and communicative interiorly thereof.

Anti-tamper fastener shielding apparatus

Abstract: Apparatus for assembly with a bolt or screw upon installation thereof to prevent tampering therewith, including a one piece collar device having an outer annular jacket member with a restricted collar portion and an inner annular washer member detachably joined to the jacket member at the collar portion by a frangible diaphragm. The stem of a bolt or screw is inserted through the collar device and tightened into engagement with the collar portion to cause shearing of the diaphragm to separate the washer and jacket members, the washer member being of a larger axial dimension and smaller radial dimension than the collar portion to permit the jacket member to rotate freely about the bolt or screw and the washer member when the enlarged fastener head is tightened into clamping engagement with the washer member. A cap member fits snugly in the free end of the jacket member to enclose the fastener head. Thus, the fastener head cannot be frictionally clamped by gripping the exterior of the rotatable jacket member to deter tampering with the fastener.

High pressure mounting with positive lock

Abstract: This invention relates to an improved high pressure mounting for removably positioning pitot tube type flow measurement devices in a pipeline where the mounting includes a hollow tubular collar welded to the pipe in alignment with a probe-receiving opening therein and which is sized to slidably receive the body of the probe for movement into and out of the pipe, a relatively deformable and compressible ferrule encircling the probe body movable into abutting relation to an annular seat provided on the end of the collar remote from the welded end thereof, and a compression nut adapted to be screwed onto a threaded end of the collar adjacent the seat and cooperate therewith and with the ferrule therebetween to crimp the latter tightly around the probe thus sealing the probe in a fixed operative position, the improved positive lock which is characterized by adding an externally-threaded male extension to the compression nut, providing the probe body with a fixed abutment-forming projection exposed beyond said extension, and mounting a hollow open-ended generally cup-shaped cap on the probe body on the opposite side of the projection from the extension, the projection being sized to pass easily into the cap while the latter has both an internally-threaded portion adapted to screw onto the extension as well as an abutment-forming shoulder positioned and adapted to engage the projection when thus threadedly interconnected thereby preventing the probe body from being withdrawn from the collar.