US1976788A

US1976788A - Machine for delivering sheets from a stack

Info

Publication number: US1976788A
Application number: US661892A
Authority: US
Inventors: Kurth Herman
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-03-21
Filing date: 1933-03-21
Publication date: 1934-10-16
Anticipated expiration: 1951-10-16

Description

Oct. 16, 1934. H. KURTH MACHINE FOR DELIVERING SHEETS FROM A STACK Filed March 21; 1953 4 She ets-v-Sheet l INVENTOR WW 4 0a. 16, .1934. H. KURTH 1,976,788

MACHINE FOR DELIVERING SHEETS FROM A STACK Filed March 21, 1933 4 Sheets-Sheet 2 INVENTOR f I ATI'O Y Oct. 16, 1934. H. KURTH 1,976,788

MACHINE FOR DELIVERING SHEETS FROM A STACK Fil ed March 21, 1935 4 Sheets-Sheet 3 Oct. 16, 1934. H KURTH 1,976,788 I MACHINE FOR DELIVERING SHEETS FROM A STACK Filed March 21, 1955 4 Sheets-Sheet 4 A I INVENTOR I r, 59 7 JW Patented Get. 16, 1934 UNITED. STATES PATENT! orrree MACHINE FOR DELIVERING SHEETS FROM A STACK This invention relates to an improved machine for delivering sheets in succession from a stack of sheets. The invention is adapted for many uses but is particularlyadapted for delivering paper money even though the money be very soft and flexible as the result of much handling.

The object of the invention is to provide a machine of this kind that will deliver only one sheet at a time and the accuracy of the delivery enables and also for power operation and both forms of machine. are illustratedin the drawings.

The drawings which accompany this description illustrate machines embodying my invention in which Figure 1 is a vertical cross-section of a machine of the type adapted for both manual or power drive. Figure 2 is a front View of the machine shown in Figure l but with the front reservoir removed andwith the side walls shown in section. Figure 3 is a front view, partly broken away, of one type of manually operable machine.

Figure 4 is a central cross section of the machine shown in Figure 3. Figure 5 is a similar view with the machine shown in operative position.

The machine comprises a holder and a mechanism for intermittently acting on the end sheet in the stack for feeding the said end sheet. The feeding is done laterally relative to the stack of sheets. The machine may be installed in various positions but the preferred way is that illustrated in which the feeding is done from the bottom, which is preferred, as it requires only a weight to insure thepressing of the stack toward the feeding means with a proper pressure.

The invention shown comprises a holder v which is. usually made of sheet. metal and has an open top and an open bottom. The holder rests on a base which in the machine shown in Figures 1 and 2 comprises side plates 11 andl2. These serve as bearings'for a shaft 13. The shaft 13 supports a pulley or pulleys 14. I prefer to use two pulleys. The pulleys are provided with a belt or belts 15. The belt is provided with an outside face having resilient or friction characteristics. 1 'find rubber an excellent material for the belt.

The belt passes over two pulleys 16 and 17. The

pulley 16 rotates on a shaft 18 and the pulley 1'1 rotates on a shaft 19. The

shafts

18 and 19 are supported on two plates 20 at each end of the machine. The plates are arranged to rock slightly on the shaft 18 and thus have drop for a short distance at the pulley 17 for purposesto be described hereinafter. The reach 21 that passes across the bottom face of the stack is thus adapted'to feed a sheet from the stack and also to be released between its feeding operations to lower the stack slightly. The stack is pressed down by a. suitable weight 22. At what I shall call the front part of the machine is a lip or flap 23 with considerable resiliency especially at its free end where it is made thinner and usually with a slight flange 24. The flaps, usually two in number, are secured in clamps 25 formed by bending over a part of the front wall26 of the holder 10.

The thin end 24 of the lip is easily moved and is in contact with the belt except when a sheet is passing between them. It has no appreciable resistance to the passage of a sheet propelled'by thebelt but does engage the next sheet that may have a tendency to .follow and thus insures the feeding of only a single sheet.

The belt has an intermittent motion caused by any suitable mechanism. As an example I show a Geneva movement- The shaft 13 is supplied with a slotted plate 27. This is actuated by the pin 28 on a driving plate 29 on the driving shaft 30. The driving shaft is extended across the machine and supports the two plates 20 and actuates the plate by means of the cams 31 on which the projecting parts 32, of the plates 20, rest.

By continuous rotation of the driving shaft the belt 15 is moved with a pulley 14 a distance equal to one-quarter the circumference of the pulley 14 and the parts are proportioned to cause the feeding of a sheet from. the bottom of the stack far enough for 'the'sheet to be grasped.

1 The machine shown inFigures I and 2also ineludes a grasping device in theform of two

rollers

33 and 34, a. pair being placed at each'side-a'nd disposed in a position to receive a sheet from the belt 21 asthe belt moves the bottom sheet out of the holder. The pulley 33 is secured on a shaft 35 and the pulley 34 is secured in a shaft 36. The pulleys are faced with av soft substance such. as rubber and thus rotate together. One of the shafts is driven by a belt 37 which passes over a pulley 38 on the; drive shaft 30: and over a pulley 39 on: the shaft 35. The shaft so may be driven continuously by'a. belt 40.

In order to stack bills that come. fromthe machine: I mayprovide a receptacle such as a well with a fixed wall 41 extending downwardly from in front of the lower pulley 34. The well has a movable wall 42 which has its bottom end free and swinging on a rod 43. The wall 42 swings outwardly freely and is stopped from swinging inwardly by a lip 44 engaging a stop 45. The wall 42 preferably drops into place by its own weight when released. It is thus readily movable to remove sheets that have beendeposited in the well. To form ends to the Well the side walls 11 and 12 are extended to the front of the machine and also used to form supports for the rod 43 and the stop 44. The front movable wall 42 is cut away as at 42 to allow the fingers of a hand to be placed over a stack in the well and the base 10 is cut away as at 10 to allow the thumb to be placed under the stack. The stack can be grasped and withdrawn carrying the movable wall 42 with it until the stack clears the bottom of the wall 42 at which time the wall drops back into place. i In operating this form of machine the machine is placed in operation by the belt 40 connected with a suitable motor. The intervening mechanism above described which forms a feeding means and including the belt 15 causes the belt to have an intermittent feeding movement. The beginning of the feeding movement finds the earns 31 at the under side of the shaft 30 and the bottom sheet of the stack lies with its edge just below the shoulder 10 of the holder and against the lip or lips 23. The sheet'begins to move out of the holder under the lip. As it begins to emerge the earns 31 engage the parts 32 of the plates 20 and consequently the pulley or pulleys 17 are raised and this raised the reach 21 of the belt 15 and causes the sheet to be fed under the end 24. The movement of the plate 20 in a downward direction can be limited by a pin 45, in the plate, extending into a slot 46 in one of the side walls.

The sheet which is being fed passes out of the holder far enough to be grasped by the hand. If the machine is supplied with the

rollers

33 and 34 the sheet is grasped by these rollers and as the

rollers

33 and 34 rotate continuously the sheet is deposited in the well formed by the

walls

41 and 42. When the sheet has been fed from the stack the cam 31 releases the bracket 20 and the pulleys '16 and 1'7 drop slightly allowing the next succeeding sheet to clear' the shoulder 10 and rest against the bottom end 24 of the lip 23. The well-known expedient of using a counter or register on machines of this class may be employed and when the desired number of sheets have been deposited in the well the wall 42 is raised and the sheets removed. This is particularly of advantage in machines for counting and delivering paper money. Themachine is thus of great'utility in banks and in ofi'ices and in making up pay.- rolls and similar collections of various amounts. In Figures 3,4 and'5, I show a machine for manual operation at each delivery. In this machine the holder is practically the same as in the machine previously described. The difference lies in the means for advancing the sheet-feeding means and the removal of sheet after it is fed from the stack. this latter machine the belt is shown at 47 with its upper reach 48 forming the bottom of the holder 10. V i

The belt passes over two pulleys 49 being at the rear'part of the base and the driving pulley 50 being at the front part of the base. The shafts 51 and' 52 of the pulleys are supported by the ends 53 of the bracket 54. The bracket is hinged at the back as at 55 so that it can rock slightly and is supported at its lower end 56 by the spring 57 which rests on the bottom 58 of the machine. The lower end 56 of the bracket is rolled over to hold a rod 59 which in turn acts as a fulcrum for the lever 60 which extends up to the bottom of the holder 10 at the front thereof to form a shelf 61 on which a sheet rests when it is partly out of the stack. The lever 60 is preferably curved to form a brake 62 as it rests against the belt 47 when it is in its normal position. The lever 60 is held in normal position by suitable means such as the springs 63 secured to the lever and the back of the machine. The shelf 61 of the lever is preferably extended across the full width of the machine.

The lever 60 also acts as a means to operate the belt with an intermittent motion. The lever en gages an arm 64 usually by a pin 65 in a slot 66 in the arm. The arm is hinged at 67 at the bottom of the machine. The arm carries a pawl 68 hinged at 69 and held up by a spring 70. The pawl engages the pins 71 successively. The pins are spaced and the throw of the arm is limited to cause each complete movement of the lever 60 to move the belt a pre-determined and proper distance to feed a sheet partlyfrom the stack. The pawl 72 acts as a means for preventing reverse movement of the belt mechanism. The hinge 55 as shown consists of lugs 73 struck up from the back of the machine and fitting into slots in the back of the bracket 54.

The operation of this machine is manual. The shelf 61 is in position shown in Figure 4 with a sheet 74 projecting partly from the stack and resting on the shelf 61. The fingers are used to press down on the shelf and the sheet is carried along and swept from the shelf which carries the sheet clear of the lip 23.- As the shelf is thus pressed down the spring 57 yields to lower the bracket 24 and in this way lower the belt 47. This carries the next sheet below the shoulder 10a and against the end-24 of the lip 23 and as the shelf 61 is released the pawl 68 begins to advance the next sheet at once and the edge of the sheet emerges from under the lip 23 after the spring 57 has raised the belt and its associated parts to its upper position. This movement of the belt under the influence of the springs 63 on the lever 60feeds the sheet out for a proper distance and the sheet is met by the returning shelf 61 and supported as in Figure 4. On a repetition of this operation another sheet is delivered until the proper or desired number. are removed. A suitable counter.v can, of course, be used in conjunction with the machine.

Various changes, can be made in the form and proportions of the parts without departing from the scope of my invention. 4 I claimi f I I ,1. A machine for delivering sheets insucces sion from a stack, comprising aholder for a stack, a'fe'eding means on which thestack rests, means for intermittently moving the feeding means for delivering. a sheet laterally from the bottom of the stack, a restraining device for resisting the movement of the sheets and means for lowering the feeding means when the feeding means is-inoperative. 1 t V 2. A machine for delivering sheets in succession from a stack, comprising a holder for a stack, a feeding means on which the stack rests, means for. intermittently moving thefeeding means for delivering a sheet laterally from. the bottom of 150 the stack, a restraining device for resisting the movement of the sheets, and means for lowering the feeding device when it is inoperative.

3. A machine for delivering sheets in succession from a stack, comprising a holder for a stack, a belt forming the bottom of the holder, means for moving the belt to feed the bottom sheet laterally from the stack, a lip in the path of the bottom sheet, and depressing means operated by the belt moving means for lowering the belt when the belt is inoperative.

4. A machine for delivering sheets from a stack, comprising a holder, a belt, one reach of the belt forming the bottom of the holder and on which the stack rests, means for intermittently advancing the belt and means for raising the belt at a pre-determined time for feeding the bottom sheet from the stack.

5. A machine for delivering sheets from a stack, comprising a holder, a belt, one reach of the belt forming the bottom of the holder and on which the stack rests, and means for intermittently advancing the belt and means operable to raise the belt before its advance.

6. A machine for delivering sheets from a stack, comprising a holder, a belt, one reach of the belt forming the bottom of the holder and on which the stack rests, and means for intermittently advancing the belt and means operable to raise the belt before its advance, the holder having a restraining lip at one edge to withhold the stack when the belt is not lowered and disposed to release the lowest sheet when the belt is lowered.

7. A machine for delivering sheets from a stack comprising a holder, a pair of pulleys, a belt passing over the pulleys with its upper reach forming the bottom of the holder and means for intermittently advancing the belt.

8. A machine for delivering sheets from a stack comprising a holder, a pair of pulleys, a belt passing over the pulleys with its upper reach forming the bottom of the holder, means for intermittently advancing the belt and means for raising at least one of the pulleys during the advance of the belt.

9. A machine for delivering sheets from a stack comprising a holder, a pair of pulleys, a belt passing over the pulleys with its upper reach forming the bottom of the holder, m ans for intermittently advancing the belt and means for raising at least one of the pulleys during the advance of the belt and a resilient lip engaging the belt where the belt delivers the sheet.

10. A machine for delivering sheets from a stack comprising a holder with an open bottom, a resilient flap at one edge of the bottom, a feeding means including a part movable toward the flap during its feeding movement and means for raising said part during the feeding movement.

11. A machine for delivering sheets from a stack comprising a holder with an open bottom, a resilient flap at one edge of the bottom, a belt arranged to pass across the bottom of the holder and to feed a sheet from the stack toward the flap and means for raising the feeding part of the belt before and during its feeding movement.

12. A machine for feeding sheets from the bottom of a stack comprising a holder, a rubber belt having one reach from the bottom of the holder, pulleys for supporting the belt, means for moving the belt with an intermittent motion and a resilient flap at the delivery edge of the bottom of the holder and in contact with the belt.

13. A machine for feeding sheets from the bottom of a stack comprising a holder, a rubber belt having one reach forming the bottom of the holder, pulleys for supporting the belt, means for moving the belt with an intermittent motion and a resilient flap at the delivery edge of the bottom of the holder and in engagement with the belt and means operated from the belt-moving means for changing the height of the feeding part of the belt.

14:. A machine for feeding sheets from the bottom of a stack comprising a holder with an open bottom, a. belt mounted on pulleys and having a reach of the belt forming the bottom of the holder, a highly resilient lip at the delivery edge of the holder and in contact with the belt, means for moving the belt with an intermittent motion, means operated from the belt-moving means for changing the height of the reach of the belt at the bottom of the holder, and means for limiting the movement of the belt and limiting the change in elevation of the belt.

15. A machine for delivering sheets from a stack comprising a holder for a stack, the holder having an open side Where the sheets can be removed laterally, a means for feeding the end sheet laterally, and automatic means for varying the pressure exerted by the feeding means on the stack.

16. A machine for delivering sheets from a stack, comprising a holder for a stack, the holder having an open side where the sheets can be removed laterally, a means for feeding the end sheet laterally, and automatic means for varying the pressure exerted by the feeding means on the stack and coacting means for operating the pressure-varying means from the feeding means.

17. A machine for delivering sheets from a stack depositing them to form another stack comprising a holder for a stack, a feeding means for successively removing sheets from the stack and a receptacle in the machine disposed in a position to receive and stack sheets coming from the feeding means.

18. A machine for feeding sheets from a stack comprising a holder for a stack of sheets, a receiver in the machine adjacent and below the holder for receiving and stacking sheets, and means for transferring sheets successively from the stack in the holder to the top of the re,- ceiver.

19. A machine for feeding sheets from a stack comprising a holder for a stack of sheets, a receiver in the machine adjacent the holder for receiving and stacking sheets, said receiver being below the holder and means for feeding a sheet at a time from the bottom of the stack and delivering such sheets into the top of the receiver.

20. A machine including a well for sheets, said well having a front pivoted at one edge to the well, said well having a recess in the bottom and said front having an opening in it to enable a stack in the well'to be grasped by the thumb and fingers of the hand whereby the stack can be laterally withdrawn and acts as a means for swinging the front.

HERMAN KURTH.