US654464A

US654464A - Hand-stamp.

Info

Publication number: US654464A
Application number: US73404399A
Authority: US
Inventors: John Crawford Macalester
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-10-19
Filing date: 1899-10-19
Publication date: 1900-07-24
Anticipated expiration: 1917-07-24

Description

No. 654,464. Patent ed luly 24, I900.

J. C. MACALESTEB.

HAND STAMP.

A (Application fl led Oct. 19, 51899.)

(No Madel.)

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lJNiTED STATES PATENT OFFICE.

JOHN CRAWFORD MAOALESTER, OF GLASGOW, SCOTLAIQD.

HAN D-STAM P.

QPECIFICATION forming part of Letters Patent No. 654,464, dated July 24, 1900. Application filed October 19, 1899. filerial No. 734,043. (No model.)

To all whom it may concern:

Be it known that I, JOHN CRAWFORD MAC- ALESTER, a subject of the Queen of Great Britain, residing at Glasgow, Scotland, have invented certain new and useful Improvements in Hand-Stamps, of which the following is a specification.

This invention relates to hand-stamps and its object is to so construct such stamps that the type or die is caused to strike flat on the surface to be impressed and also when in contact with the surface to be subjected to an evenly-distributed pressure.

In order that the invention may be properly understood, lhave hereunto appended an explanatory sheet of the drawings, whereon.

Figure 1 is a side view of a rubber stamp made in accordance with my invention. Fig. 2 is a front view of the same stamp. Fig. 3 is a side view of the stamp asit appears when making an impression. Fig. t is a section taken on the line X X, Fig. 3. Fig. 5 is a detail View.

Referring to the drawings, the same reference-letters wherever repeated indicate the same parts.

In carrying out the invention the rubber stamp is provided with atype-base a, prefer ably formed of a metal plate, having the rubber type b b secured to it in the usual man'- ner. Formed in one with the type-base is a lateral extension or tailpiece c, which is preferably of a T shape, as shown. 0 o are feet made on the tailpiece. The type-base is connected with the usual handle at by means of a universal joint, which may take the form of two lugs 6, made in one with the type-base, having holes through which a pin f is passed. The pin f is also passed through a hole or passage in a block 9, (see also Fig. 5,) which is capable of turning upon a pin 7b, passed through the hole It in the block and through holes in the fork-shaped jaws t' t, cast in one with the ferrule j of the handle. I As will be seen, the pin f passes through the block g at right angles to the pin it, so that a I-Iookes joint is formed, with the result that a universal movement can be imparted to the typebase.

As will be seen, Figs. 1 and 2, the typebase does not normally lie fiat or horizontal, but at an angle to the bottom of the handle,

with the type end sloping upward and the tailpiece downward. To insure this normal inclination of the type-base, a spring 1.; may be provided. This spring is secured at its one end to the tailpiece and at its other free end bears against the bottom of the block g.

In use the handle being held vertically, as usual, the tailpiece owing to the inclination of the type-base first touches the surface to be impressed and acting as a guide automatically insures that the type on the base will strike flat, the contact-feet c of the tailpiece being in a plane with the type-face. At the same time the joint connection between the type-base and the handle being a universal one, any lateral motion of the hand is neutralized and an even distribution of pressure on the type assured. The type-base after each impression is brought back to the normal position by the action of the spring 7.:.

For inking the stamp a box may be used having a lip or edge which engages the tailpiece, so that the type strikes fiat on the pad automatically and is evenly inked, while the contact-feet of the tailpiece are kept free of ink.

Having now fully described my invention,

'What I claim, and desire to secure by Letters Patent, is-

1. In a hand-stamp the combination with the handle of a type-base movably jointed thereto and a tailpiece for the type-base, substantially as set forth.

2. In a hand-stamp the combination with the handle of a type-base jointed by means of a universal joint to the handle and of a tailpiece for the type-base, substantially as set forth.

3. In a hand-stamp the combination with the handle, of a type-base jointed by means of a universal joint to the handle, a tailpiece for the type-base, and means for causing the type-base and tailpiece to normally lie in an inclined position relatively with the handle, substantially as set forth.

4. In a hand-stamp the combination with the handle, of a type-base jointed by means of a universal joint to the handle, a tailpiece for the type-base, and a spring for depressing the tailpiece, substantially as set forth.

5. In a hand-stamp the combination with the handle, a ferrule, jaws on the ferrule, a

block movably mounted in the jaws, a typebase movably secured to the block, a tailpiece for the type-base and a spring for depressing the tailpiece. substantially as set 5;forth.

i 6. In a hand-stamp the combination with the handle, a ferrule, jaws on the ferrule, a block movably mounted in the jaws, a typebase movably secured to the block, a tail- IO piece for the type-base, a spring for depressing the tailpiece and feet on the tailpiece, substantially as set forth.

7. In a hand-stamp the combination with the handle, a ferrule, jaws at each side of 15 the ferrule, a block fitted movably between the jaws, a pin passed through holes in the jaws and the block, a type-base, lugs on the substantially as hereinbefore described and shown.

Signed at Glasgow, Scotland, this 6th day of October, 1899.

JOHN CRAWFORD MAOALESTER.

Vitnesses:

DUNCAN MCKELLAR, R. M. Ross.