US2000099A

US2000099A - Paper delivery mechanism

Info

Publication number: US2000099A
Authority: US
Inventors: Jr George Schaefer
Original assignee: SANITARY PUBLIC SERVICE CORP
Current assignee: SANITARY PUBLIC SERVICE Corp
Priority date: 1933-12-19
Filing date: 1933-12-19
Publication date: 1935-05-07
Anticipated expiration: 1952-05-07

Description

May 7, 1935.

G. SCHAEFER, JR

PAPER DELIVERY MECHANISM Filed Dec. 19, 1933 2 Sheets-Sheet l INVENTOR Q'earye 56609 e ATTORNEY May 7, 1935.

G. SCHAEFER, JR 2,000,099

PAPER DELIVERY MECHANISM Filed Dec. 19, 1935 2 Sheets-Sheet 2 ATTORNEY Patented May 7, 1935 um'rso STATES w I 2,000,099 PAPER DELIVERY MECHANISM George Schaefer,

Sanitary Public Jr., Flushing, Service CorporatiomNew York,

N. Y" assignor to N. Y., a corporation of Delaware Application December. 19, 1933, Serial'No. 703,099

, 15 Claims. (01. 164-68) Thepresent invention relates'to paper delivery mechanism and is more particularly directed toward paper delivery mechanism suitable for use with vending and dispensing machines wherein articles such as paper towels, toilet seat covers,

and the like are made out of a roll of paper and vended or dispensed to the customer.

Machines of this nature have a cycle of operations according to which an article is completed each time the mechanism is released and manually operated. After the completion of the formation of the article, the machine stops automatically. These articles are comparatively large and according to the most convenient method of dispensing, the formed article is passed downwardly out of the machine so that the user may remove it. To keep the article from dropping away from the machine the ar ticle is incompletely severed from the web.

Seat cover making and vending machinesare shown in Stahly Patent No. 1,840,266, dated J anuary 5, 1932, and Doane Patent No. 1,844,884, dated February 9, 1932.

It has been found that when the article is al lowed to pass down from the machineas the paper progresses through the machine, a user, unacquainted with the functioning of the machine, is likely to take holder the oncoming article as soon as it appears and try to pull it from the machine. This destroys the article being formed and impairs the operation of the machine, for the user or customer may not complete the turning of the handle so as to complete the cycle. 1

The present invention contemplates delivery mechanism for machines of this character, so designed that it is necessary for the customer to complete the cycle of operations, whereby the toilet seat cover or towel is formed, before the formed article is accessible for removal from the machine. Accordingly, the machine is provided with a chamber or chute to receive the formed article while it is being made,- this chamher being closed except at the end of the cycle when it is automatically opened to allow the a.- ticle to fall out. It can then be manually removed. This makesit necessary for one to complete turning of the handle to the stop position before obtaining either the toilet seat cover or the towel.

Inasmuch as these articles are too long to permit-having a chute of a length greater than the article, it is necessary to have the articles folded up on top of the bottom of the closed chamber,

The present invention contemplates that the 1 Y unison.

chamber shall have front and rear walls which confine the paper so'that it cannot escape by wrapping around the pressure or guide, rollers.

. Other andiurther objects of the invention will appear as the description proceeds. 5

The accompanying drawings show, for purposes of'illustrating the present invention, one of the many embodiments in which the invention. may take form together with modifications of certain parts, it being ings are illustrative of the invention rather than limiting the same. In thesedrawings'z Fig. 1 is a vertical sectional view through a machine embodying the paper delivery mechanism, the door at the bottom of the chamber being open;

Fig. 2 is a perspective View of the delivery mechanism'on a large scale;

' Fig. 3is a'fragmentary top plan view of a portion of this mechanism; V

Fig. 4 is a fragmentary sectional View similar to Fig. '1, showing the chamber closed;

Fig..5is a fragmentary front elevational view of the .machine showing an article completed and suspended ready for removal;

Fig. 6 is an end view of the machine showing a form of stop and release mechanism for. controlling the beginning and ending of the cycle of operations, the partsbeing in the stop position; I

Fig. 7-is a view similar to Fig. 6, showing the release of the stop mechanism;

, Fig. 8 is a vertical sectional view stop mechanism of Figs. 6 and '7;

Fig, 9 is a V fragmentary 'elevational view through a portion of the stop mechanism; and Fig. 10 is a fragmentary view similar to Fig. 1, illustrating a modified form of door operating means for the chute.v

The female and male rollers of the machine are indicated at 20 and 2!, respectively. The roller 2fl is half the diameter of the roller 2i and these two rollers are provided with cooperative grooves. 2ila'and knives Zia for forming a seat cover or towel. The shape of these knives and grooves may be thesame as that shown in either of the patents above referredv to. .A gear train, indicated at 22, .23, 24, 25, times these two rollers so that they operate in through the A web roll is indicated at W. The web w passes about a guide'roll 25, the female roller 20, and between the knives and grooves, after'which it passes about a series of toothed rubber drawing rollers 21. These rollers understood that the draw- 10 are carried on a shaft 28 driven by a gear 29 which is in mesh with a gear 38 carried by the female roller 28. The

rollers

28 and 21 provide drawing rollers which draw the paper through the machine. The paper is delivered downwardly past the front face of the pressure rollers 21 by delivery rolls indicated at 3| These rolls are carried on a-shaft 32 provided with a gear 33 in mesh with a gear 34 carried on shaft 28. The gear is slightly larger in diameter than the gear 33, so that the shaft 32 is driven atv a higher rotary speed than the shaft 28. In this way the surface speed of the rolls3| may be made slightly greater thanthe pressure rollers 21, so that there is always atendency to force the paper down instead of permitting it .to pass upwardly between the rollers 20 and 3|. I

The machine is operated by alhand crank indicated at 35, secured to the gears ,22 and30, and the female roller 20 in any convenient manner. The crank shaft 35 also carries alocking lug 36 which inturn revolvably supports a thin disc 31. This disc has a limited, movement by reason of the pin and slot connection, indicated at 38, 39. It has a laterally bent ear indicated at 40 and is notched in front of this ear as indicated at 40. It is urged in a clockwise direction by a coiled spring 4| interconnecting the lug 36 and disc 31. r

A selector lever 42 is mounted to rock about the crank 35 and is held in the, position indicated in Fig. 6 by a coiled spring 43. This lever has a notch indicated at 44 (Fig. 9) and laterally extending

flanges

45 and 46. The notch 44 is adapted to receive the nose 41 ofa stop lever 48 pivoted at 49, and urged counter-clockwise by a spring 58. The upper left end of this lever has a shoulder 5| which is adapted toengage a shoulder 52 of the locking lug 36 and the lateral extension 40 of the disc 31. .When the parts are in the full line position of Pg; 6, turning the hand crank, clockwise is prevented.

Should one raise or lower the selector lever 42, it will be rocked about'the axis of the crank 35, and one or the other of the

flanges

45 or 46 will engage the nose 41 of thestop lever 48, thereby shifting it to the position indicatedin Fig. 7. This brings the shoulder5| above the lateralextension 48on disc 31 and allows the spring 4| to shift this disc on the locking lug so that the edge of the disc 31 passes under the abutment 5|. The selector lever may now be released and it will turn back to the full line position of Fig. 6. The stop lever 48, however, is held against movement and the crank may now be turned in a clockwise direction to effect two revolutions of the female roller and one revolution of the male roller.

The male roll carries a cam 53 which is adapted to engage an inwardly extending member 54 carried on the lower end of the stop lever 48 so; as tohold this lever in the elevated position at the proper time. At the time when the notch 48' of the disc 31 is opposite the stop lever on the latter part of the first revolution of the crank handle, the cam 53 is in the dot and dash line position of Fig. 7 and holds the stop lever against the tension of the spring 58 and prevents the upper left part of the stop lever from lowering. After the cam 53 is. passed beyond the extension 54, the stop lever is released. so that the spring 58 may press the left end of the lever against the edge of'the disc 31. When the end of the cycle is approached, the stoplever drops into notch 40 in front of the

shoulders

52 and 40 so as to engage them and stop the crank.

The end of the male cylinder 2|, opposite the handle and stop control mechanism, is provided with a cam plate 68 indicated in dotted lines in Fig. 1. This cam plate cooperates with a lever 6| pivoted at 62 and connected by a link 63 with a door 64. This door is formed out of sheet metal, has a bottom portion 65, upwardly extending members 66, and end flanges 61. These end flanges are pivoted about a shaft 68 and the upward extensions 66 are bent to pass part-way about this shaft. The cam 68 is provided with a notch 69 which is adapted to receive a projection 10 carried on the lever 6|.

functioning of the stop mechanism to stop the turning of the machine. This allows the door to open under the influence of gravity and to shift the parts into the full line position of Fig. l. A spring 62' may be added to facilitate the opening, if desired.

As soon as the machine has started to make a new article, the notch 63 operates the lever 6|. to close the door 84, placing it in the position shown in Fig. 4. The door 64 is across the bottom of a delivery chute having a front wall 1| in the form of a vertical sheet metal plate having upward extensions 12 which pass about the shaft 32 between the rollers 3|. This metal plate makes it impossible for the paper to be forced forwardly out of the machine.

To form the rear wall of the chute, belts 13 are employed. These belts are passed about the shaft 28 between the toothed rubber rollers 21 and about the shaft 68. These belts are preferably made of rubber and are tight enough to be driven by the shaft 28. Inasmuch as they extend inwardly beyond the surface of the pressure rollers 21, they engage the paper and prevent the paper from wrapping around the pressure rollers.

From the foregoing it will be apparent that when the cycle of operations is completed, the door 64 is opened, and as soon as one starts to turn the crank the door 64 is immediately closed. This will cause the paper to pile up on top of the door 64 somewhat as indicated in Fig. 4. The paper cannot pass out of the chute formed by the plate 1| and belt 13. is reached, the cam 60 brings about an opening of the door 64 so that the completed article drops out, somewhat as indicated in Fig. 5, where one can take hold of it and remove it from the machine.

It will be understood that the configuration of the male and female rollers may be varied according to the design of the article which is to be made, and that this design is preferably one which incompletely severs the article so. that the article will not drop free of the machine.

In the form of construction shown in Fig. 10, the door 80 is similar to the door 64. It is urged toward closed position by a spring 8| and is opened by a cam 82 carried by the male roll and engaging two toggle levers, indicated at 83 and 84, at the end of the cycle. In this form of construction the door may be manually opened whenever desired by pressing downwardly on the front edge to tension the spring, while in the form of construction shown in Figs. 1 and 2 the door is held tightly closed at all times except when it is allowed to open by the mechanism.

It will also be understood that various forms of stop and release mechanism may be employed to This notch is positioned on the male roll so that it comes opposite the extension on the lever just prior to the As soon as the end of the cycle control the "cycle of operation the one; shown herein being-illustrative or a suitable structure for this purpose and forming the subject-matter lit-another application. "I l .It isobViousJ-thatthe invention may be embodied iniimany fonns' and commenceswithin the scope of the claimsyand'l wish? it 'to beun'der stood that the particular form shown is bu't one of 4 the i forinsk- Various modifications and changes being possible, I do not otherwise limit myself in any way with respect thereto.

What is claimed is:

1. A machine having a cycle of operations for severing a web of paper to form paper articles one at a time, including male and female rollers meshing together and having severing devices which cut the web to form the article to shape without completely severing the same, a pressure roller disposed to grip the entire width of the paper after severing to thereby hold the formed but incompletely severed article suspended, manually releasable stop mechanism for stopping the machine with the completed article passed beyond the pressure roller, a and rear Walls confining the paper after it passes by the pressure roller, a movable door across the bottom of the chute, and. door operating means effective for keeping the door closed except at the end of the cycle whereby the article being formed is confined in the chute above the door during formation and for opening it at the end of the cycle to allow the article to drop out of the chute.

2. A machine as claimed in claim 1, wherein the door operating means includes a cam movable with the male roller, and a spring pressed lever bearing on the cam and connected with the door.

3. A machine as claimed in claim 1, wherein the door operating means includes a spring for holding the door closed, and a cam and follower for forcing the door open.

4. A machine as claimed in claim 1, wherein the rear wall of the delivery chute includes vertically extending belts extending about small diameter portions of the pressure roll and a lower shaft, and thedoor is hinged about said shaft and has extensions passing between the belts whereby escape of paper rearwardly is prevented.

5. A machine as claimed in claim 1, wherein the front wall of the delivery chute includes a stationary plate extending from above the axis of the pressure roll down to the front edge of the door when closed.

6. The combination with a machine having a cycle of operations for forming a paper article out of a web and dispensing the formed article incompletely severed from the web so that it may hang suspended for manual removal, of stop means for insuring that the cycle is completed before the article becomes available for such manual removal, comprising a chute into which the article is passed as it is fed from the severing mechanism, a chute closer across the bottom of the chute, and chute closer operating means which opens the chute at the end of the cycle to drop the article down, and which closes the chute when the cycle is again commenced.

"I. A paper article forming machine as claimed in claim 6, wherein the stop means and chute closer operating means are independent.

8. In a web handling machine, a pair of drawing rollers between which a web is drawn, one roller having small diameter portions not in contact with the other and being so positioned relameans preventing delivery chute having front tive to the othenthat the web'passes aboutlthe upper portion thereof under theainfiuenceof gravity, and-belts driven by: the small diameter portions to prevent the webmaterial from wrapping itself about that 'drawing roller, so that'it i must pass downwardly free of said roller. 9; In a web handling-machine, apair of drawing rollers one above the other for drawing-a' web between them and normally feedingit down-'- war'dly from the lower roller, a delivery roll in front of the lower roller and close to the first roller, means to drive the delivery roll at a surface speed in excess of the surface speed of the rollers and web, whereby the web is prevented from passing up about the upper roller, and

about the delivery roll. v

10. In a web handlingma'chine, a pair of drawing rollers one above the other for drawing a web between them and normally feeding it downwardly from the lower roller, a delivery roll in front of the lower roller and close to the first roller, means to drive the delivery roll at a surface speed in excess of the surface speed of the rollers and web, whereby the web is prevented from passing up about the upper roller, the delivery roll having small diameter portions and stationary guides extending toward the small diameter portions between the larger diameter portions for intercepting the web'and preventing its wrapping about the delivery roll.

11. In a web handling machine, a pair ofdraw ing rollers one above the other for drawing a web 7 between them and normally feeding it downwardly from the lower roller, belts driven by the lower roller for preventing the material from wrapping about that roller, a delivery roll in front of the lower roller and close to the first roller, means to drive the delivery roll at a surface speed in excess of the surface speed of the rollers and web, whereby the web is prevented from passing about the upperroller, and means for preventing the web from wrapping itself about the delivery roll.

12. In a web handling machine, a pair of drawing rollers one above the other for drawing a web between them and normally feeding it downwardly from the lower roller, belts driven bythe lower, roller for preventing the material from wrapping about that roller, a delivery roll in front of the lower roller and close to the first roller, means to drive the delivery roll at a surface speed in excess of the surface speed of the rollers and web, whereby the web is prevented from passing about the upper roller, the delivery roll having small diameter portions, and stationary guides extending toward the small diameter portions between the larger diameter portions for intercepting the web and preventing its wrapping about the delivery roll.

13. A web handling mechanism having a pair of drawing rolls past the second of which the web is delivered, a driven guide roll having a surface speed in excess of the drawing rollers for preventing the web from passing about the first of the pair of drawing rollers, and chute forming means comprising belts driven by the second drawing roll, and a stationary member having portions which project across the fiective surfaces of the take off roll.

14. A web handling mechanism having a pair of drawing rolls past the second of which the web is delivered, a driven guide roll having a surface the'web from wrapping itself.

pair ofdrawing rollers, andchute forming means comprising belts driven by the second drawing roll, a stationary member having portions which project across the efiective surfaces of the guide roll, and a door for closing the bottom of the chute.

15. A web handling mechanism'having' a pair of drawing rolls past the second of which the web is delivered, a driven' guide r011 having a. surface speed in excess of the drawing rollers for preventing the web from. passing about the first of the pair of drawing rollers, chute forming means comprising belts driven by the second drawing roll, a stationary member having portions which project across the effective surfaces of the guide roll, and a chute closing door across the bottom of the chute, the door having extensions passing between the belts.

GEORGE SCHAEFER, Jr.