To fold large sheets of different sizes with different folding patterns, in zig-zag folds, the sheets are introduced into a folding system having first, second and third belts (5, 6, 10) which, between the first, second and third belt define a folding gap. The belts are driven, respectively, in selected directions of rotation to fold a sheet in a zig-zag pattern. A control system (35) having a memory (50) with folding patterns stored therein, is responsive to a sheet-length signal derived, for example, from a printer (75). A stepping motor moves a sheet, in accordance with a selected program stored in the memory, to form the fold based on the length of the sheet. Prior to folding sheet a maybe end-for-end a sheet is flung upwardly in a reversing gap (46) whereupon the sheet is transported by paper removal rollers (44, 48) and transport belts (55, 63) to sheet supply rollers (3) of the folding apparatus.

Program controlled sheet folding apparatus for folding large sheets into predetermined formats

A compact full-color media web electrographic printer and method of using the printer includes an automatic web feeding and cutting registration apparatus for producing closely spaced printouts. The registration system includes a registration roll pair (18, 19), a feed roll pair (12, 13) for feeding the web to the nip of the registration roll pair, a sensor system of feedback sensors (14, 17, 20, 40) for sensing the media web, a cutter (63) for cutting the media web, and a processor for receiving the sensor feedback and accurately controlling the feeding and cutting of the media web so as to produce the desired spaced printouts.

On demand media web electrophotographic printing apparatus

A device installed in an imsge recording apparatus for pulling out the leading edge of a rolled recording medium such as a rolled paper and then cutting the recording medium at a predetermined length as measured from the leading edge to feed the resulting sheet to a predetermined recording section of the apparatus. A plurality of paper feed mechanisms are each provided with a cutter for cutting a paper which is paid out from a roll. When two or more of the paper feed mechanisms are loaded with a paper of a desired kind, they are automatically and repetitively switched from one to another every time a sheet feed operation is performed.

Device applicable to an image recording apparatus for feeding a rolled recording medium

The present invention relates to a gastric-retentive controlled release mono-matrix tablet composition, comprising: a) at least one pharmacologically active substance; b) hydrogel-forming materials consisting of polyethylene oxide and at least one component selected from poloxamers and colloidal silica; and c) a carbon dioxide-generating material. The composition of the present invention floats in gastric juice and can continuously release the active substance in the stomach at a constant rate for at least 2 hours.

Gastric-retentive controlled release mono-matrix tablet

An improved folder includes a "soft stop" reversible roll nip. Folding is accomplished by feeding a copy sheet into a stepper/servo controlled pinch roll that is under software control. The copy sheet is measured and the reversible roll nip is cycled from full forward to full reverse velocity with controlled acceleration. The reversing of the sheet causes a buckle to be created and the sheet creased by a secondary set of rolls.

Soft nip folder

First and second parallel folding rollers (6 and 7) respectively co-operate with third and fourth folding rollers (4 and 5) of folder means to form first and second folding devices (4, 6 and 5, 7) Non-return feed rollers (8 and 9) are mounted between the first and second folding rollers (6 and 7) for folding pliable strip material (3) alternately to the two folding devices (4, 6 and 5, 7) and an intermediate part (14) of the folder means extends between the third and fourth folding rollers (4 and 5) so as to act as a guide for the pliable strip material (3) Movable guide means (12) are operable to deflect the leading end (24) of the pliable strip material (3) towards the first folding devices (4 and 6)

Zig-zag folding machines

Apparatus for feeding a continuous web of photosensitive paper into a reprographic machine so that the leading edges of the paper and a transparent master sheet to be copied are co-incident as they enter exposure and developing stations, and to ensure that the tail end of the paper is cut, during continuous forward movement of the leading edge, so that the trailing edge of the severed paper co-incides with the tail end of the master sheet. The feed path of the paper includes a curved portion defined by an arcuate-section guide and a concentrically mounted roller. A loop of paper is formed by moving the roller out of the guide and the rear end of the paper is then held stationary and cut by a guillotine while the paper forming the loop is continuously fed forward. The timing of the feeding and cutting operations on the paper is controlled by micro-switches actuated by the leading and trailing ends of the master sheet.

Adi Kaikhushiroo Ashburner

Papers

Zig-zag folding machines

Transport guide for pliable sheet material