US795377A - Paper-spacing mechanism for adding-machines. - Google Patents

Description

No. 795,377. PAT-BNTEDJULY 25, 1905.

0. WALES.

PAPER SPAGING MECHANISM FOR ADDING MACHINES. APPLIUATIOI FILED SEPT. 15, 1903.

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PATENTED JULY 25, 1905.

c. WALES. PAPER SPAGING MECHANISM FOR ADDING MACHINES. 1

APPLICATION FILED SEPT. 16, 1903.

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CHARLES WALES, OF DETROIT, MICHIGAN, ASSIGNOR TO THE ADDER MACHINE COMPANY. A CORPORATION OF NEWV JERSEY.

PAPER-SPACING MECHANISM FOR ADDING-MACHINES.

Specification of Letters Patent.

Patented July 25, 1905.

Application filed September 15, 1903. Serial No. 173,316.

1'0 all whom, it TH/LLZ/ concern:

Be it known that I, CHARLns WVALns, a citizen of the United States, and a resident of Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Paper-Spacing Mechanism for Adding-Machines, of which the following is a specification.

This invention relates generally to machines for adding and registering numbers and printing or recording the results of such operations, but more particularly to mechanisms adapted to be embodied in such machines for feeding forward the paper upon which the printing is done after each operation of the machine.

The mechanism subject of the present application being particularly adapted for use with a machine which I have described and illustrated in an application forUnited States Letters Patent of even date herewith, I will give a brief outline of the mode of operation of such machine, referring to the application referred to for a full explanation thereof.

In the general adding and printing machine the result of each operation is exhibited upon numeral-wheels, which are rotated by means of reciprocating racks engaging pinions on the wheels, the racks bcing actuated on their return or wheel-actuating movements by means of a main operating-handle through the medium of suitable connections and set into operative position by their first or forward movement, which is limited by suitable stops set in the path of the racks by depressing the keys.

The key, rack, and wheel mechanisms are arranged in series side by side, one series for units, one for tens, and so on, and each series is also provided with a suitable type-bar and a hammer, with suitable connecting mechanisms operated by connections with the main operating-handle simultaneously with the operation of the racks and wheels, and suitable mechanism is provided for feeding forward step by step the paper upon which the printing is done, the feeding being regulable within certain defined limits, whereby the width of the spaces on the paper may be varied to suit the particular work.

The object of the present invention is to provide such adding and printing machine mechanism for accurately feeding the paper after each operation; and the invention consists in the improved construction, arrange- 'ment, and combination of the parts of such mechanism, which will be hereinafter fullydescribed and afterward specifically claimed.

In the accompanying drawings, Figure 1 represents in perspectlve view as much of the printing mechanism as is necessary to explain my invention. Fig. 2 represents an enlarged detail view in side elevation, showing the ratchet mechanism in normal or rest position, the adjusting-plate being partly broken away. Fig. 3 represents a similar View of the same parts at the end of the preparatory stroke. Fig. 4 represents a similar view of the same parts in the positions they assume during the return stroke when the pawl is about to engage the teeth of the ratchet-wheel to begin to feed. Fig. 5 represents the adjusting-plate set to give the greatest possible width of space between lines of printing. Fig. 6 represents in perspective the paper-roll shaft and ratchet-wheel thereon. Fig. 7 represents in perspective the pawl-holder removed from the shaft. Fig. 8 represents in perspective theadjusting-plate. Fig. 9 represents in perspective the handleor button for manually operating the shaft. 10 represents in rear elevation the shaft and the mechanisms thereon. Fig. 11 represents a sectional view through the platen and showing the paper-roll and holder in end elevation.

Like reference characters mark the same parts wherever they appear in more than one figure of the drawings.

Referring particularly to the drawings, 1 indicates the base of the machine of any suitable outline, upon which is mounted an upright frame-piece 2 on each side, (only one of which is shown,) between which the parts of the adding mechanism are supported, being reinforced for the support of the printing mechanism, including the paper-feeding mechanism, by upright pieces 3 and 4.

The main operating-lever (not shown) is by suitable mechanism (not shown) connected with a link 5at its forward end, said link being connected at its rear end with the cross-rod 6, supported in the outer ends of arms 7, at

tached to a cross-rod 8, mounted in the frame, the connections being such that when the main operating-lever is moved forward the parts 5, 6, 7, and 8 move forwardwith it,and vice versa. To the cross-rod 6 is connected a link 9, pivotal'ly connected at its rear end with the lower end of a rocking lever 10, fulcrumed at 11 to a bar 12, depending from upright frame-piece 3, the upper end of said lever being pivotally connected by a link 13 with a crank-arm 1 1, projecting from one end of a sleeve 15, carrying at its opposite end a disk 16, carrying a pawl 17, yieldingly pressed inward by aspring 18, the arm 14:, sleeve 15, and disk 16 together forming the pawl-carrier and being loosely mounted on a shaft 19, journaled in framepieces 4 and carrying an adjustingplate 20, loosely mounted thereon, said adjusting-plate being provided with notches 21 in its periphery to engage a spring-pawl 22, secured to frame-piece 3, whereby the plate may be held stationary at as many points as there are notches. The plate is cut away on one edge, forming a peripheral surface 23, terminating at an inclined shoulder 24, said surface 23 being concentric with but nearer the shaft than the outer periphery 25. The pawl 17 is pivoted at 26, is of a thickness to work freely between disk 16 and plate 20, and is provided with a pin 27, which projects laterally over the edge of plate 20. Between the disk 10 and plate 20 a ratchet-wheel 28 is fixed to the shaft 19. At the left of Fig. 1 .I have shown part of a link 29, which forms part of a link which forms part of the connections between link and the main operating-lever, and attached thereto a spring 30, which connects said link 29 with the frame of the machine and serves to actuate the mechanism on its rearward stroke. On the shaft 19 is mounted the platen 31, over which the paper 32 passes from roll 33, Fig. 11, the paper being held close against the platen by a roller 34 at each end, each mounted in an arm 35 and held yieldingly in contact with paper on the platen by a spring 36, connecting its arm with the frame. 011 the end of shaft 19 is a cap or button 37, by which it may be turned manually when desired.

When the main operating-handle is moved backward, the link 5, rod 6, link 9, and lower end of lever are also moved backward, throwing the upper end of lever 10 and the link forward,turning the pawl-holder 11 16 in the direction to cause the pawl 17 to engage the ratchet-wheel 28 and turn the shaft 19 and the platen 31 in the direction to feed up the paper one space. By engaging the springpawl 22 in any desired notch 21 of plate the plate is set to cause the pin 27 of pawl 17 to ride more or less over the periphery before reaching inclined shoulder 24, and during'this time the pawl is held out of contact with the ratchet-wheel, so that this part of its travel does not affect the paper, the pawl 22 being shown in Fig. 2 engaged on the third notch, in which instance the feed of each stroke will be three spaces, while in Fig. '3 the pawl 22 is set in the proper notch to give a feed of seven spaces each time. The number of notches in the plate and of teeth in the ratchet-wheel may be varied at will to suit the manufacturer. As soon as pin 27 has passed down the incline 24 to inner periphery 23 the spring 18 causes ratchet 17 to engage the ratchetwheel and turn it during the balance of the stroke. By this means a sure feed is secured and a large limit of adjustment is per mitted.

In Fig. 11 I show a rectangular rod 38 secured to the frame, upon which to removably support a holder 39 for the roll of paper 10. This holder 39 consists of a substantially semicylindrical box, the curved bottom of which is extended upward above the top and bent inward at its upper edge, forming a flange 11 to hook around the rod 38, the body resting against a lower cross-rod 12. The paper from the roll passes up to the platen, as shown, and the effort necessary to turn the roll in the holder keeps it taut between the holder and the platen.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

In an adding-machine, the combination with the platen-shaft, the ratchet-wheel secured thereon, the disk loosely mounted on the shaft, the adjusting-plate having part of its periphery toothed and the s n'ingairni secured to a fixed part of the machine engaging the teeth for holding the adjusting-plate in position, of the pawl supporting mechanism loosely mounted on the shaft and comprising the sleeve, the disk and the crank-arm, the pawl being pivoted on the disk and provided with a pin riding over the smooth portion of the periphery of the adjusting plate, a lever rocked by the operation of the machine, and a connecting-link between said crank-arm and lever.

WVitness my hand this 10th day of September, 1903, at the city of New York, in the county and State of New York.

CHARLES W'A LES.

Witnesses:

HERMAN MEYER, S. BRASHEARS.

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