US469680A - Leather-gage - Google Patents

Description

2 Sheets-Sheet 1. P= CLARK. LEATHER GAGE.

(No MaeL) Patented Mar. 1, 1892.

(No Model.) 2 Sheets-Sheet 2.

F. CLARK.

l LEATHER GAGE. No. 469,680. Patented Mar. 1, 1892.

WVVNESEEE VIVE-FITUR UNITED STATES PATENT OEEICE.

FRANK CLARK, OE NEWTON CENTRE, MASSACHUSETTS.

LEATH ER-GAG E.

SPECIFICATION forming part of Letters Patent No. 469,680, dated March 1, 1892. Application filed October 21, 1891i Serial No. 409,354. (No model.)

,To all whom t may concern: 4

Be it known that I, FRANK CLARK, a citizen of the United States, and a resident of Newton Centre, in the county of Middlesex andY State of Massachusetts, have invented new and useful Improvements in Machines for Measuring the Thickness of Leather or other Materials, of which the following, taken in connection with the accompanying drawings, is a specification.

This invention relates to improvements in machines for measuring the thickness of leather or other materials, and it is carried out as follows, reference being had to the accompanying drawings, wherein- Figure 1 represents a front view of the machine, partly shown in section. Fig. 2 represents a side View of the same. Fig. 3 represents a detail front view of the register device, showing the dial as removed; and Fig.y 4 represents a side view of said register devlce.

Similar letters refer to similar parts wherever they occur on the different parts of the drawings. i

A represents a table or other stationary support, on which the carriage B is adapted to be moved forward'and back. In practice I prefer to dmount the said carriage on wheels or rollers b b, adapted to roll upon rails or bars a a, secured to the vtable A or otherwise constructed, so as to be capable of being rolled and guided forward and back on the said table A. Upon the said carriage is laid the skin or other article C, the thickness of .which is to be ascertained, as shown in Figs. 1 and 2;

Above the table A is arranged the registering device, which consists of an upwardlyyielding bar D, having a roller or shoe d in its lower end, as shown in detail in Figs. 3 and 4. The bar D is guided in a bearing e, secured to a frame E, which may be attached in a suitable manner to the table A, as shown in Figs. 1 and 2, or be attached to any suitable frame-work depending from the ceiling of the room or otherwise, as may be found most practical and convenient. In its normal position the bar D is held by means of a suitable Asprin g D', (or, if so desired, a weight may be used,) so that its shoe or rollend shall touch the highest or middle portion of the carriage B when the latter is moved under it.

In practice I prefer to provide the bar D with a stop projection d', adapted to come in contact with the bearing e when said bar is in -its lower normal position, so as to prevent its shoe or roller from being forced below the highest part of the carriage B, when the latter is withdrawn from contact with said shoe or roller.

F is a suitably-constructed register-frame, which may be secured to or form a partof the frame E.

The bar D is pivoted at d to a lever G, the inner end of which is pivoted at g to the frame F, as shown in Fig. 4. The forward end of the lever G is pivoted at g to a rack H, the teeth of which mesh in the teeth of the pinion i, which is secured to a spindle i', journaled in bearings in the frame F and provided in its forward end with an index or pointer I.

K is a graduated dial secured in a suitable manner to the forward end of the frame F or other stationary part of the structure.

It will be noticed that the bar Dis pivoted to the lever Gat a point located between the fulcrum g and the place where the rack Il is connected to said lever, and this is done for the purpose of causing an increased move- .ment on the said rack, its pinion, and pointer relative to the movement of the bar D, thus causing a very slight vertical motion of the bar D and its shoe or roller d to be readily indicated by an Vincreased motion of the pointer I.. The pointer I is set relative to the dial K in such a manner as to point at zero when the shoe or roller CZ is in contact with the highest part of t-he movable carriage B, or, which amounts to the same thing, the stop d broughtagainst the stationary guide or projection eV by the influence of the spring D.

In using the machine for the purpose mentioned the carriage B is rolled or slid backward, so as to cause it to be disengaged from the shoe or roller d. The skin C or other article or material, the thickness of which is to be measured, is'then laid on top of the carriage B, and the latter is pulled forward sufficiently to cause the article resting on the carriageB to be brought under the shoe or roller d, by which the latter and its barD are raised correspondingly to the thickness of such article or material, causing the index I IOO to indicate upon the graduated dial K the thickness of the material that is being measured. After the thickness of the article has been ascertained, the carriage B Vmay be moved forward or backward suiciently to disengage the skin C or other material from the shoe or roller d, after which the said material is removed and another to be measured put in its place, and so on.

The carriage B may be moved forward and back, either by taking direct hold of it or by means of a hand or foot lever without departing from the essence of my invention.

Having thus fully described the nature, construction, and operation of my invention, I wish to secure by Letters Patent and claim- A thickness-measuring machine consisting of a stationary table or support, a movable carriage adapted to support the article being measured, and a yielding shoe or roller and connecting .mechanism to a dial registering device, substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 13th day of October, A. D. 1891.

FRANK CLARK.

Witnesses:

ALBAN ANDREN, JOSEPH G. SPEAB.

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