US1716642A - Self-inking stamp - Google Patents

Description

June Il, 1929. K KLElN 1,716,642

SELF INKING STAMP Filed Novn 22, 1926 KAR. L KLEIN.

Inl/enfer Af orne] y fil Patented June 11, 1929.

uNirEosrATrs KARL KLEIN,0F ST..LOUIS, MISSOURI.

f SELF-INKING STAMP.

Application filed November 22, 1926. Serial` No. 149,830.

My invention relates to' improvements in stan'ipinpj mechanisms, and more particularly to stamping mechanisms somewhat similar to the ordinary rubber stamps, `and yhas for its principal objects the production of a tampinp,` mechanism which shall be selfinliing, simple, convenient, light and compact, extremely economical, reliable, and ellicient and satisfactory for use wherevei found applicable.

The present type of self-hiking stamp is a relatively complicated mechanism, haring,v numerous parts cooperating with each other, some of the parts being stationary, and others being,` movable relatively to one another, these stamps being' rather expensive due to their complex construction.

One oflthe objects of my invention is to make a stamp, that although self-hiking, yet will comprise only relatively fixed cooperating elements, andvwill depend upon the material. of the parts themselves to accomplish self-hiking', utilif/,ing` the physical properties of the various elements.

Many other objects and advantages of the constructionherein shown and described will be obvious to those skilled in the art to which this invention appel-bains, from the disclosures herein given.

To this end, my invention consists in the novel construction, arrangement, and cornbination of parts herein shown and described, and more particularly pointed out in the claims. f y A n In the drawings, wherein like reierence characters indicate like or corresponding parts throughout the views,

Figure l is a longitudinal cross-section taken through the ,improved stampg.

YFigure Il is a bottom face view of the' same; and

Figure III is a cross-section taken substantially on the line 3-3 of Figure l.

In the drawings, wherein I have illustrated the preferred embodiment of my invention, which in the present instance is shown as a hand type of stamping` device having a handle l whereby the stamp may be grasped for use and by means of which the stamp may be hung up when out of use.

The frame or body of the stamp is indicated at 2, and generally speaking, the same comprises a bloc-k having a chamber or opening 8 upwardly from its bottom, and te said block l idle l in any suitable manner. This chamber is preferably formed with inclined side walls l and `the relatively heavy ink used for the purpose and retain it for long periods of time.

The characters ot the design that it is desired to reproduce or imprint upon suitable surfaces, such as upon bills, letters, etc., are

indicated at 7%7, said imprinting,l elements being preferably made of some inaterialthat will absorb and permit the stamping ink to impregnato its fibers, so that when the rear of the elements are in Contact with aV source of ink supply as shown at 7, that portion being shown as the rear of the elements, said ink will be drawn through the same to the front or printing face of the elements, and in this manner provide an automatic inking,` feed for the elements.

VIn. oider that only the desired portions of the printingV elements will reproduce their outlines upon the surface upon which the stamp is pressed, a backing sheet 8 is used andv is preferably made of relatively thick material. shown, this sheet preferably being substantially impervious and mounted in proxiniity to the absorbent pad G and covering one face of thesame.

rlhe pad and sheet are arranged within the ldove-tailed opening,` 3, compressing the same to wedge them in place firmly, and whenever it is desired to remove or replace the pad or sheet for re-inking of the pad or for renewal or any other purpose. the fastening screw 9, holding the end ofthe opening 3 closed, is lirst removed, after which the desired movement may be made. After replacing the parts, the plate 5 is again fastened in position and the parts will remain thus.

From the foregoing description itis seen that I have provided a self-inking stamp, in

which the material of the imprinting,- char` acters is such that they will, of themselves,

conduct the printing ink from the source of supply, in this instance the pad, onto their faces, so that when the stamp is pressed onto the surface desired the characters will be imprinted upon the latter. Pressure will cause tiene clamer 5? te contact more closely with the pad and thus take up more ink and car-ry it to the face of the elements.

I have found that fibrous materia-'ls such as string, felt and similar products serve sat is'tactorily as imprinting elements.

Having thus described my invention, it is obvious that Various immaterial modilications may be made inthe same Without departing Yfrom the spirit et my invention: hence l do not Wish myself `to be understood as limiting myself to the exact construction, form, arrangement7 and combination of parts herein shown and described, or uses nientioned, except. as limited by the claims.

'Yhat I claim as new and desire to secure by Letters Patent iS:

l. A self-inking stamp comprising an inlisaturated pad, a non-metallic, substantially impervious backing sheetover one face thereet, and a perviene design on said sheet, the rear of said design communicating With said pad; whereby the inking fluid will be automatically fed only tlnonghthe peri/'ioneI design when the stamp is pressed against a surface to be inked.

2. `A stamp, comprising an ink-absorl'ient pad, a plurality et innn'inting characters adaptedV te conduct ink from said pad through the rear of the characters to their tace, and a lixed backing member el resiliently eol'i'ipressible material for carrying` said characters. l

3. A seitinl ing stamp, comprising a source oi' ink supply, a nen-metallic backing sheet covering one 'tace thereof, in'iprintable characters upon said sheet and projecting beyond the tace of the latter and communicating at their rear with Said source et ink snpply, whereby the printing faces et said char acters will be automatically self-inked Whenever the stamp is pressed against a surface to be imprinted. y

. KARL KLEIN.

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