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Publication numberUS462066 A
Publication typeGrant
Publication dateOct 27, 1891
Filing dateJan 7, 1891
Publication numberUS 462066 A, US 462066A, US-A-462066, US462066 A, US462066A
InventorsWillard W. Sawyer
Original AssigneeF one
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Willard w
US 462066 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

(No Model.)


No. 462,066. Patented Oct. 27, 1891.




SPECIFICATION forming part of Letters Patent No. 462,066, dated October 27, 1891. Application filed January 7, 1891. Serial No. 376,989. (Nl) model.)

To all whom it may concern.

Be it known that l, WILLARD W. SAWYEE, a citizen of the United States, residing at Springfielchin the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Hand- Stamps, of which the following is a specification, reference beinghad therein to the accompanying drawings.

This improvement relates to that class of hand-stamps shown in my application, Serial No. 372,459, filed November 24, 1890, in which there are a series of numbering-wheels,whioh are so arranged that the same number may be repeated as frequently as desired, or the position of the wheels may be changed so as to Vary the number to be printed; and the invention consists in the peculiar construction, arrangement, and combinations of parts hereinafter more particularly described and then definitely claimed.

In the accompanying drawings, Figure 1 shows a front view of a stamp constructed according to my improvement; Fig. 2, a back View of the same. Figs. 3 andiare side views of the stamp with one of the sides of the frame broken away and the parts in different positions.

Referring now to the details of the drawings, 1 represents the frame, in which slides the plunger 2, to which is attached the fork 3, carrying the numbering-wheels at, each being provided with a ratchetwheel on its side and mounted on a shaft 5, projecting through the sides of the fork and working in grooves 18 in the frame, all as shown in my previous application above referred to, and, like the plunger in said stamp, the plunger in this stamp is hollow and is provided with a spiral spring 6 to lift the plunger, fork, wheels, &c., after the stamp has been used. All of these parts so far described are substantially the same as the corresponding parts in my previous application above referred to, and a further description of the same is not therefore necessary.

Mounted in the shaft 5 is a yoke 7, in which is pivoted a pawl-carrier 8,which operates on the ratchet-wheels of the numbering-wheels 4 in a manner well understood, and is fully shown and described in my aforesaid application. On the ends of the arms of the yoke are formed .cogged segments 9, which mesh with corresponding teeth 10, formed on the lower ends of the bifurcated lever 11, pivoted by the screws 12 to the top of the fork Between the fork 3 and the n umbering-wheels is secured a spring 13, the free end of which presses against the lever 11 and tends to keep the same in the position shown in Fig. 3. A cam-surface is formed on the lever 11 at 14c, whose object will be hereinafter explained.

Mounted upon the shaft 5 is another yoke 15, pivotally connected by a screw 20 with the inking-pad 10, which latter is pivoted to the sides of the frame by a screw 17 passing through the frame 1, as shown in dotted lines in Fig. 2.

The operation is as follows: Supposing that a series of papers are to be stamped with the same number-as, for instance, in the papers connected with the registration of a letter the stamp is placed upon one of the articles to be stamped and the handle depressed, which carries down the wheels, (the yoke 15 pushing the inking-pad 16 out of the way,) and the impression is made upon the paper or other material to be stamped. As soon as the pressure on the handle is removed the spring 6 causes the plunger-wheels, &c., to rise, and the yoke 15, acting on the inkingpad, will bring the same again in contact with the type-wheels, as shown in Fig. 3. If two or more papers are to be stamped with the same number, the operation is repeated as many times as necessary until all the papers that are to be numbered with the same number have been stamped. If it is now desired to stamp another set of papers with the next consecutive number, the finger of the operator is pressed on the upper end of the lever 11', which causes the cam let to act upon the under side of the frame,and thus slightly depresses the plunger, which, acting on the yoke 15, will move the inking-pad 16 slightly away from the numbering-wheels, and as the pressure on the lever is increased the teeth on its lower end,acting on the segments 9 on the yoke 7, give motion to said yoke and with it the pawl-carrier 8, whose pawls operate on the ratchet-wheels on the side of the numbering-wheels, and thus, assuming the posi- ICO tion in Fig. 4, bring the next consecutive 11 umberin position. The stamp is then placed on one of the papers to be stamped with said number, and all the papers requiring the number then in the printing position are now stamped. As the stamp rises after the first impression has been taken the spring 13 acts upon the lever and the yoke and pawl-carrier assume the normal position, as shown in Fig. 3, Where it is ready to be used to move the numbering-wheels, as before, when the next number is required to be printed. By this construction a nnmbering-machine may be made that will be found to be cheaply made, Very convenient in operation, and not liable to get out of order. In some cases I may dispens'e with the teeth and segments and connect the lever and yoke by a link, as shown in dotted lines in Fig. 4. It is obvious that as the lever 11 is operated said link, being pivotally connected with both the lever and yoke, will transmit motion from the lever to the yoke, and thus the latter will swing on itscenter in substantially the same way as if the yoke and lever were connected by the segments 9 and 10.

Having thus shown what 1 consider the preferable way of carrying out myinvention, but without limiting myself to the exact construotion described or illustrated,what I claim as new is 1. The combination,inanumbering-stamp, of a frame, a fork, ahandle connected thereto for depressing said fork in said frame, a set of n umbering-wheels mounted therein, a yoke and pawl-carrier operating said wheels, a lever pivoted on said fork having its operating end arranged in proximity to the handle, and intermediate connections between the operating end of the lever and the yoke, substan tially as described.

2. The combination, in a numbering-stamp, of a set of nu mbering-wheels, the yoke 7, having segments 9, a pawl-carrier mounted in said yoke, and the pivoted lever 11, having teeth 10 engaging with the segments 0, substantially as described.

The combination, in a numbering stamp, of a fork, a series of numbering-Wheels mounted therein, inking mechanism therefor, and a lever pivoted to the fork, having a cam acting against the undersurface of the frame, substantially as described.

4-. The combination, in a numbering-stamp, of a set of numbering-wheels, inking mechanism therefor, a yoke 7, having segments 9, a PttWl-Cttll'lGl mounted in said yoke, and the pivoted lever 11, having teeth 10 and cam surface l l, substantially as described.

5. The combination, in a n nmbering-machine,of a set of nu mbering-Wheels mounted in a fork 3, a yoke 7, having segments 9, a pawlcarrier mounted in said yoke, apivoted lever 11, having teeth 10 and cam-surface 11, a yoke 15, connected to the fork 3, and a swinging inking-pad l0, pivoted to the said yoke, substantially as described.

In testimony whereof I affix my signature, in presence of two witnesses, this (5th day of January, 1891.


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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4854491 *May 13, 1988Aug 8, 1989Messerschmitt-Boelkow-Blohm GmbhRiveting
Cooperative ClassificationB41K1/16