scispace - formally typeset
Search or ask a question

Showing papers on "Pressure angle published in 1970"


Journal ArticleDOI
TL;DR: In this paper, the results of static deflection tests on spur gear teeth made of acrylic were given and a method was given for determining the dimensions of tapered cantilever beam to replace the actual gear tooth in deflection analysis as proposed by Timoshenko and Baud.

13 citations


Patent
18 Dec 1970
TL;DR: In this article, the shearing action tangential to the tooth profiles associated with compressive deformation of the tooth faces is made to exactly offset the shear action in the opposite direction imposed by the meshing of the teeth.
Abstract: A form of gearing with teeth having circular arc profiles and a particular pressure angle which together produce engagement and disengagement in pure rolling. The shearing action tangential to the tooth profiles associated with compressive deformation of the tooth faces is made to exactly offset the shearing action in the opposite direction imposed by the meshing of the teeth.

8 citations


Patent
William G Livezey1
09 Nov 1970
TL;DR: A friction plate member having teeth provided with a pressure angle different from that of the teeth of a mating member was described in this article, where the friction plate was assumed to be a friction plate.
Abstract: A friction plate member having teeth provided with a pressure angle different from that of the teeth of a mating member.

7 citations


Patent
06 Apr 1970
TL;DR: In this paper, a film cartridge housing encloses a core which is rotatably mounted inside a spool spool and defines an opening through which a camera driving gear is insertable for engaging the spool gear.
Abstract: A film cartridge housing encloses a core which is rotatably mounted therein. The housing extends over a gear carried by the spool and defines an opening through which a camera driving gear is insertable for engaging the spool gear and rotating the spool. In a preferred embodiment, the gear axes define a plane which is offset from a normal to the film plane by an angle equal to the pressure angle of the gears, thereby creating a line of force parallel to the film plane. By arranging for such line of force to pass through a cartridge-supporting surface in the camera at a position where the film cartridge contacts the surface, any tendency of the cartridge to be unseated from the supporting surface in response to the creation of a force component normal to the film plane is negated.

5 citations


Patent
15 Jul 1970
TL;DR: MOROZUMI as mentioned in this paper proposed an internal involute gear in which the number of teeth on the pinion and ring gear differ by 1 or 2 and the contact ratio is greater than 1.
Abstract: 1,198,737. Toothed gearing. M. MOROZUMI. 28 Aug., 1968 [30 Aug., 1967; 30 May, 1968; 31 May, 1968 (2)], No. 41113/68. Heading F2Q. In an internal involute gear in which the number of teeth on the pinion and ring gear differ by 1 or 2 and in which the contact ratio is greater than 1, tooth interference is avoided by addendum modified gear cutting in which the relation between the pinion and ring gear addendum modification coefficients x 1 , x 2 satisfies the equation where α c is the pressure angle, h k the addendum coefficient, and K is 1 when the difference in the number of teeth is 1 or a function of α c when the difference is 2. A reduction gear, Fig. 14, employing such teeth consists of an input shaft 1 with oppositely displaced crank portions 1 1 , 1 11 carrying planet pinions 2, 2 1 meshing with a stationary ring gear 3, the pinions being connected by an Oldham's coupling 7, while a second such coupling 6 connects pinion 2 1 with the output shaft 5. In a modified form, Figs. 16, 17 (not shown), the pinions and output are connected by pins (27) passing through pairs of circular openings (25) in the pinions.

4 citations