US1131904A

US1131904A - Noiseless stamping-pad.

Info

Publication number: US1131904A
Application number: US54517510A
Authority: US
Inventors: John F Buckie
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-02-21
Filing date: 1910-02-21
Publication date: 1915-03-16
Anticipated expiration: 1932-03-16

Description

J. F. BUGKIE.

NOISELESS STAMPING PAD.

APPLICATION FILED FEB.21,1910.

1,131,904. Patented Mar. 16, 1915.

THE NORRIS PETERS CD" PHOTO-LITHQ. WASHINGTON. D. C

JOHN F. BUGKIE, OF CHICAGO, ILLINOIS.

NOISELESS STAMPING-PAD.

Application filed February 21, 1910.

l 0 all whom it may concern Be it known that I, JOHN F. BUCKIE, a citizen of the United States, and a resident of Chicago, Illinois, have invented certain new and useful Improvements in Noiseless Stamping-Pacls, of which the following is a specification.

The invention relates to a stamping pad and seeks to provide an improved construction for receiving and absorbing the blows of rubber stamps and the like and thereby obviating the noise incident to the use of such stamps.

The exact forth in the particularly claims.

In the is a plan nature of the invention is set following description and more pointed out in the appended accompanying drawing, Figure 1 view of the improved stamping pad. Fig. 2 is a section on the line 2-2 of Fig. l, and Fig. 3 is an edge View.

The main body a of the fiat pad is formed of glutinous material, and preferably consists of an admixture of glue and glucose, or of glue, glycerin and glucose. Preferably also, small amounts of borax, cotton-seed or castor-oil and formaldehyde are added. The proportions by weight of the materials are substantially as follows, viz: glue, twelve parts; glycerin, nine parts; glucose, nine parts; borax, one part; cottonseed or castor-oil, one-half part; and formaldehyde one-sixth part. These ingredients are melted, admixed and then run into a mold to form the fiat body a of the pad which may be of any suitable size and shape and which is preferably an inch or more thick. The pad is provided with a suitable surface covering Z) of flexible, and preferably impervious or semi-impervious material, such as oil-cloth, leather or the like, which is stretched smoothly over the surface of the pad and secured thereto by the adhesive qualities of the material of which the body of the pad is formed.

At one portion of its surface, the stamping pad, in its preferred form, is provided with a recessed inking-pad. That shown, comprises alternate layers 0 and (Z of absorbent felt and blotting paper, the whole having a covering 6 of muslin. The inking pad is preferably removably arranged in a recess f in the surface of the stamping pad near one edge thereof.

As an aid in retaining the shape of the pad, it is preferably provided with a bind- Specification of Letters Patent.

Patented Mar. 116, 18915. Serial No. 545,175.

ing or frame, consisting, of a metal strip or band 9 extending about the edges of the pad and having its ends connected, for example, by means of a screw-bolt i2, extending through perforated ears 2' on the ends of the band. The body of the pad extends above and below the edges of the band or frame so that the latter will not contact with the surface of the desk or table upon which the pad is placed.

The papers to be impressed with a rubber stamp or the like are in the form shown,

1 snugly engage the surface of the desk or table on which it is placed and there is no clatter of the pad upon the desk or table as the blows are struck. Nor can the band or frame 9 strike the surface of the desk or table, since the body of the pad extends below the same. The body of the stamping While the peculiar properties of the pad are due to its composition, it should be understood that equivalent animal and vegetable glutinous materials could be employed and that the proportions are given above for guidance and could be varied if desired.

he borax and formaldehyde are preservatives, and the latter and the glycerin impart stiffness to the pad and prevent it from softening under the influence of heat. cose renders the pad soft and yielding and the proportions of glycerin and glucose may be varied from that above given in accordance with the desired qualities of the pad. The glutinous body of the pad is, as stated, soft and somewhat viscous. These qualities render the pad well adapted to deaden the blows of stamps but also render it necessary to provide means for holding the body of the pad in shape. This is effected by the covering 6 which extends over the sides and edges of the pad and also preferably by the thin metal frame or band 9 which extends about the edges of the pad. The covering also acts to protect the body of the pad and prevents its surface from being marred or broken and, since the covering is impervious to the viscous ingredients of the body portion of the pad, it prevents its surface from becoming sticky. The covering 7) can be applied by lining the mold in which the body a of the pad is formed, so that the covering adheres to one side' and to the edges of the pad. The covering is then applied to the other side of the pad before the body thereof is entirely cooled and set;

I claim as my invention 1. A stamping pad adapted to be placed upon the surface of a desk, table or the like and comprising a flat, flexible, molded body of glutinous material, a flexible protective covering impervious to the sticky ingredients of the pad extending over and cemented to the side faces and edges thereof, and an inclosing frame formed of a thin metal strip extending around the edges of Copies of this patent may be obtained for the pad, the soft, glutinous body of the pad 7 being thicker than the Width of said frame to prevent contact of said frame with the desk, table or the like whereon the pad is placed, substantially as described.

2. A stamping pad adapted to be placed upon the surface of a desk, table or the like and comprising a flat, flexible, molded body of glutinous material, a flexible covering cemented to the surface of said pad, an inclosing frame extending around the edge of said pad, the body of the pad extending below said frame, said pad having arecess in a portion of its upper face adjacent one edge, and an inking pad recess, substantially as described.

JOHN F. BUCKIE. Witnesses:

HARRY L. CLAPP, CLARA A; Non'roN';

five cents each, hyraddressing the Commissioner of Patents,

Washington, I). 0.

removably fitted in said