Patent GB-190121641-A (GB)
Title: Improvements in Sheet Feeding Machines for Paper and the like
Inventor: HADDAN HERBERT JOHN
IPC: B65H3/06
Filed: 1901-10-28
Granted: 1902-01-02
Abstract: 21,641. Haddan, H. J., [American Paper Feeder Co.]. Oct. 28. Feeding sheets.- Relates to apparatus in which the pile is supported on a rising table, and the top sheets are fed or feathered out by rotating combining - rolls, the latter being thrown out of action when the front edge of the top sheet reaches a certain position. The pile is placed on a table A, and the sheets are feathered by combing-rolls B on two continuouslydriven shafts b in line with each other. Each shaft b is journalled in arms b<1> of a rock shaft b<2>. On each shaft b<2> is a loose arm b<14>, which engages a lug to rock the shaft when the arm b<14> is moved to the left. The arm b<14> is pulled to the left by a spring b<19>, and is connected by a rod b<16> to an arm b<15> on a shaft b<150>. On the shaft b<150> is an arm carrying a pivoted pawl b<23>, normally held away from a ratchet-toothed disc b<22>, by a pawl b<26> on a rod b<250> having a finger b<25> arranged to be lifted by the front edge of the sheet when the latter is fed far enough. When the finger b<25> is raised by the top sheet, the pawl b<22> is released, and engages the toothed disc b<22> mounted on the main shaft c<3>, which is constantly driven. The pawl b<23> is moved by the disc to rock the shaft b<150> and arm b<15> to raise the combing-roll b. The two combing- rolls B are thus raised independently. After the sheet has been removed by the rollers D, D<1>, the parts are re-set by an arm b<30>, on the shaft c<3>. engaging a bracket on the rod b<16>. A projecting untoothed part of the disc b<22> rocks the pawl b<23> into engagement with the pawl b<26>. The combing- rolls are permitted to fall again on to the pile at the proper time by a cam b<33> acting on a roller on a rod b<35> connected to an arm b<37> on a short shaft between, and in line with, the shaft b<2>. This shaft has bent arms engaging under the arms b<1>. A spring b<40>, connected adjustably to the rod b<16> and to a finger b<41> of the shaft b<2>, presses the combing-roll down on to the pile. The cam b<33> also operates to lift the combing-rolls, in case they have not been proviously lifted by the mechanism described, while the sheet is fed off. The shaft d of the rolls D is continuously driven, and the rolls D<1> are dropped to feed off the sheet by arms d<2> on a shaft d<3> rocked by a cam on the shaft c<3> &c. The fingers b<25> are raised from the sheet while it is fed off by rocking the shaft b<250> by means of a cam on the shaft c<3> &c. While the sheet is being removed, the remaining sheets of the pile are held from displacement by fingers f, which rest on the pile in rear of the top sheet. These fingers are adjustably secured in the ends of weighted arms f loosely mounted on a shaft f<2> rocked to raise and lower the fingers by an arm f<8>rod f<7> lever f and cam f The fingers fare lowered just prior to the lowering of the rolls D<1>. The table A is supported at each side in the loop of a chain a, which is fixed at one end a', passes round the roller a<10> on the table A, round the sprocket - wheel a<2> and rollers a<3>, a<4>, and is fixed at its other end to the framing. The rollers a<4> are on a counterweight a<5>, which balances the table. On the shaft of the sprocket-wheels a' is a gear-wheel as gearing with a pinion on a shaft. having also a ratchetwheel actuated by a pawl on an arm rocked from a crank arm on the shaft c<3>. The pawl is normally out of engagement, but is permitted to engage the ratchet-wheel when the top of the pile is reduced to a predetermined level, by a guard operated by a pivoted arm or pawl arm connected with the combing-rolls so that it follows the top of the pile. The table may be quickly raised and lowered by the use of a crank handle on the shaft of the ratchet-wheel. The sheets passing from the table to the rolls D are supported by guides G, which extend horizontally from bars G'. The edge of the top sheet is supported under the fingers b<25> by grooved rollers on the shaft d.