US729699A - Marking-stamp. - Google Patents

Description

UNTED STA Patented the 2,1903.

PATENT OFFICE.

MARKING-STAMP.

SPECIFICATION forming part of Letters Patent No. 729,699, dated June2,-1903. Application filed July 12, 1902. Serial No. 115,321. (No model.)

To ctZZ when it may concern;

Be it known that I, FRANK TEST, a citizen of the United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a certain new and useful Improvement in MarkingStamps, of which the following is a specification.

My invention relates to a new and useful improvement in markin -stamps, and relates to stamps particularlyemployed for stamping designs or characters upon knit goods and other textile fabrics; and the objects of my invention are, first, to provide a stamp the type of which is so secured to the stamp as to be particularly indestructible, and, secnd, to cushion the stamp so that the typeplate will readily accommodate itself to any irregularities upon the surface of the article being stamped, and also accommodate itself to anyirregularities of'the inking-pad, so thatall of the type will receive ink therefrom. a

With these ends in View this invention consists in the detailsof construction and combination of elements hereinafter set forth and then specifically designated by the claims.

In order that those skilled in the art to which this invention appertains may understand how to make and use the same, the construction and operation will now be described in detail, referring to the accom pan ying drawings, forming a part of this specification, in which- Figure l is a side elevation of my improved stamp; Fig. 2, a cross-section through the same; Fig. 3, a bottom plan view of the type and type-plate.

In the drawings, A represents the stamp-- base, which has secured thereto any suitable;

handle 13.

C is the type-plate, which has rigidly secured thereto a type D. The type D is formed of strips of German silver bent so as to form the character or design desired, these strips being placed upon the edge and the type-plate 0 cast around one edge of the same, so that one edge of the German silver strip composing the type is embedded in the type-plate C. The material composing this type-plate is a mixture of lead,antimony, and, tin, and I have found by experiment that this mixture of lead, antimony, and tin has a great aflinity for German silver, and therefore the strips composing the type are held within the typeplate with great tenacity, so that itis almost impossible for the type to become loosened from the plate by accident or use. I have also found that aluminium will answer in the place of the miXtureof lead, antimony, and tin. The type-plate is provided with a number of holes through which are passed bolts E, which bolts pass upward through openin gs provided through the stamp-base A, and these bolts or rods E are threaded upon their upper ends for the reception of the thumbnuts F. The lower end of these bolts E are provided with tapering enlarged heads, the type-plate 0 being countersunk to receive the same.

Intel-posed between the type-plate O and stamp-base A is a block of resilient material G, preferably spongy rubber The bolts E also pass upward through this block of resilient material. Thus when pressure is applied to the stamp and the type brought in contact with the inking-pad or the article being stamped the resilient block G will give and allow the type to accommodate itself to any irregularities in the surface opposed to the same, the bolts E and thumb-nuts F holding the parts in their proper and normal position. By turning the thumb-nuts F the resilient block G may be compressed, thus allowing for more or less resistance of the same.

While I have shown the bolts E and thumbnuts F for holding the' partsin their normal position, other means could be employed to accomplish this object, and therefore I do not wish to' be limited tothe exact construction here shown, as slight modifications could be 'made without departing from the spirit of my invention.

Having thus fully described my invention, what I claim as now and useful is 1. In a marking-stamp, the combination of a stamp-base and type-plate, withan elastic cushion composed of spongy rubber interposed betweenthe stamp-base and the typeplate, rods extending through the type-plate, cushion, and stamp-base, said rods provided upon their lower end with an enlarged head and threaded upon their upper ends above the stamp-base for the reception of thumbnuts, said rods adapted to normally hold the and formed tapering, the type-plate being countersunk for the reception of its enlarged tapering heads, thumb-nuts threaded upon the upper end of the rods above the stampbase, as and for the purpose specified.

In testimony whereof I have hereunto affixed my signature in the presence of two subscribing witnesses.

FRANK TEST.

I Witnesses:

H. B. HALLOCK, L. W. MORRISON.

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