US315286A

US315286A - Hand-stamp

Info

Publication number: US315286A
Authority: US
Publication date: 1885-04-07
Anticipated expiration: 1902-04-07

Description

(No Model).

B. B. HILL HAND STAMP. i

Patented Apr. 7, 1885.

Eig E IIIHIIIIIIIIIIIIIIIIIIuiIIIIIIIIIE IIIIWI Y i"illllllIllllllllllllllllllllllllllillllllllllllpl v-v- 1TNEssBs: AINVENTOR l Y @M7/ y y@ j BY gw/@JMW UNITED 'STATES PATEILMOFFICE.

BENJAMIN B. HILL, OF PHILADELPHIA, PENNSYLVANIA.

HAND-STAMP.

SPECIFICATION forming part of Letters Patent No. 315,286, dated April 7, 1885.

.Application liled December 15, 1883. (No model.)

.To all whom t may concern:

Be it known that LBENJAMIN B. HILL, a citizen of the United States of America, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvementsv struction, arrangement, and combinations of parts by which the reversal ofthe plate is accomplished, as hereinafter more particularly 2o described and claimed.

In the accompanying drawings, Figure 1 represents a front elevation of a stamp constructed according to my improvement when giving theimpressi'on; Fig. 2, avertical crosssection of the same on the line a: :v on Fig. 1. Fig. 3 represents a similar sectionA with the handle removed and the die-plate about to take ink; and Fig. 4 represents a section similar to the last with the die-plate in the act of 3c turning. l i

A represents the Inain frame, constructed in the usual manner, and B is the handle provided with the usual fork, C,whose lower ends embrace the journal D, which passes through the slots a a in t-he sides of the frame, and

through ears c e on the die-plate E.

At F is shown a cam-plate arranged across the center of the die-plate; but it may be on one end, if preferred, or half on one end and 4o half on the other;` but I prefer the central position, as the die-plate is not onlymore evenly balanced, bilt the cam-plate forms ameans of strengthening the dieplate, so that the latter may be made very thin. The cam-plate is made, as shown, with two guides or slots, ff', the sides of which engage with a fixed reverser consisting of two pins, G, passing in this instance from side to side; but when the camplate is arranged at the end of the dieplate 5o it is obvious that pins projecting from the side of the frame will be sufcient.

When not in operation, the die-plate is in the position shown in Fig. 3, with the upper pin G in the slot f but as the handle is 5 5 pressed down the die-plate descends so that said upper pin G passes farther into the slot,-

cause the lower pin G to engage with the slot f, as shown in Fig. 4; and as the die-plate f continues to descend the slot f leaves the upper pin G and the die-'plate assumes the position shown in. Fig; 2 and isready to give the impression.

From the above it will be seen that one or the other of the pins G G is always engaged with the slotted guides in the cam-plate, by

which means all lbacklash is avoided andthe dieplate is held perfectly steady in all positions.

The use of two slotted guides in one, as shown in my patent above referred to, has the advantage of `giving more wearingl surface, and thus the guides and pins last place of y longer and the stamp can be used for a Inuch longer period without repairing.

The arrangement of thecam-plate across the center of the dielplatehas the advantage over those wherein the guide is at the end thereof in equalizing the friction at both ends;

SQ i

besides which the cam-plate formsa strengthening-rib across the center of the die-plate, so

that it may be made much lighter and still have sufficient strength. When the two pins G extend from side to side, as shown, there is no use for the brace or connection between the lower part of the legs on the right-hand side of the slot, because.-

the pins G form a good brace, and thus the space between the sides or legs on that side of the stamp is left perfectly clear near the paper, and,-if preferred, the brace H (shown on the other side) may be 'dispensed with also;

but in this case the metal at the bottom ofthe slot should be slightly heavier.

What I claim as new is- The combination, with the die-plate of a self-inking stamp, of two guides cnnectedV with said die-plate, and two pins connected with the frame, one pin guiding the die-plate toward the ink-pad and the other holding it4 while the impression is being given, substantially as described.

In testimony whereof I affix my signature, in presence of two witnesses, this 14th' day of December, 1883.

Witnesses: BENJAMIN B. HILL.

CHAs. W. MILLER, WILLIAM S. TOLAND.

IOO