US316672A

US316672A - Stamp-pad

Info

Publication number: US316672A
Authority: US
Publication date: 1885-04-28
Anticipated expiration: 1902-04-28

Description

(No Model.)

C. P. STEVENS.

STAMP PAD. No. 316,672. Patented Apr. 28, 1885.

Q. v gh'grleo" Ber/515m J'ievem 5., 427/1 0,5 J

N. PEIERS, Fholn-Lilhograplmn Washington D. c.

UNITED Sra'rr s Tartar Orrrcn.

CHARLES PERKINS STEVENS, OF BOSTON, MASSACHUSETTS.

STAM l PAD.

SPECIFICATION forming part of Letters Patent No. 316,672, dated April 28 1885.

Application filed May 3 1, 1884. (N 0 model.)

To all whom it may concern:

Be it known that I, CHARLES PERKINS STEVENS, of Boston, in the county of Suffolk, of the Commonwealth of Massachusetts, have invented a new and useful Improvement in Stamp-Pads; and I do hereby declare the same to be described in the following specification, and represented in the accompanying drawings, of which Figure 1 is a top view, Fig. 2 a side elevation, and Fig. 3 a transverse section, of a stamppad of my improved kind without its cover. Fig. 4 is a transverse section of the cover.

This pad is intended for inking stamps, particularly those used in post-offices for postmarking letters.

The nature of my invention is defined in the claims hereinafter presented.

In the drawings, A denotes a sheet-metal box-body of any suitable hard material, and B is its cover of like material. Within such box-body there is arranged concentrically and to fit .to its inner surface,'an auxiliary boxbody, C, made of the composition generally employed in the manufacture of printers rollers, the main constituents of such composition being gelatine and a saccharine solution. The said box-body C is elastic and impervious'to air. The inner periphery of the said box-body C, I usually make a little larger in diameter at bottom than at top, although it may be of like diameter throughout or from top to bottom.

Within the body C there is a series or pack of disks, D, of felt or other suitable like liquid absorbent, and there is fixed to the under side of the bottom of the box A a disk or mass, E, of material like that composing the said body C. There is also within the cover B, and to extend entirely across it, another mass, stratum, or disk, F, of elastic material like that composing the said body 0.

In practice the disks D are to be saturated or charged with the stamping-ink.

In using the article, the stamp is to be struck face downward with force upon the upper surface of the upper disk D, which will impart ink to the said face.

The yielding gelatinous composition surrounding and beneath the pile of disks D serves, when the cover is off the box-body A, to keep the air from contact with the surfaces of all such disks except the upper one of the uppermost disk. Such gelatinous composition also answers as an elastic medium to sustain the pile of disks.

On the cover B being put in place on the body A, thevelastic material F within the said cover will be borne down on the upper edge of the body A, and by contact therewith will effectually seal the box, so as to prevent any air from passing into it, or any moisture from escaping from it. Thus, by means of the elastic gelatinous composition surrounding the pile of felt disks and extending underneath and over it, such pile will be prevented from becoming dry. The layer of the elastic material on the bottom of the body A not only constitutes a Spring to relieve the stamp from concussion, but operates to hold by atmospheric pressure or suction the stamp-pad in place on a bench or table.

I have found from experience, a stamp-pad made as above described to be a very useful article, and that ink is kept in a liquid state in its felt disks for a great length of time, and also that the disks having been properly charged the ink is caused to circulate or flow freely from one to the other of them while the article may be in use.

- I claim 1. The box-body A, provided not onlywith the internal lining of elastic gelatinous composition, such as is generally used in the manufacture of the outer coverings of printers inking-rollers, and with a pile of felt or like absorbent disks arranged within and fitting closely to such lining but having on the under side of it, the said box-body, a stratum of such elastic composition, all being substantiall y as set forth.

'2. The combination of the box-body, its elastic lining, and the pile of felt or absorbent disks arranged within and closely fitting such lining with the box-cover and. an interior stratum of elastic material arranged within it, such elastic lining and stratum being of the gelatinous composition generally used in the manufacture of the outer coverings of printers inking-rollers.

CHARLES PERKINS STEVENS.

Witnesses:

B. H. EDDY, E. B. PRATT.

IUv