US519703A

US519703A - Half to harvey s

Info

Publication number: US519703A
Authority: US
Publication date: 1894-05-15
Anticipated expiration: 1911-05-15

Description

(No Model.) 2 Sheets-Sheet 1.

0. C. L. EKMAN.

SURFACE GAGE.

No. 519,703. l Patented May l5, 1894.

W|TNESSES [NVENTOR ATTORN EYS.

Si n@ @Ma/ (No Modem f 2 "sheets-sheet 2.

o. 0.x L. E KMAN.

SURFAGE. GAGE.

No. 519,703. i Patented May 15, 1894.

WITN ESSES:

INVENTOR ATTORN EYs'.

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l NITED STATES PATENT. OFFICE.

OSCAR OH. L. EKMAN, OF SYRACUSE, NEW YORK, ASSIGNOR OF ONE- y HALF TO HARVEY S. BARTLETT, 0Fv SAME PLACE.

SURFACE-GAG E.

SPECIFICATION forming part of Letters Patent No. 519,703, dated May 15, 1894.

Application filed May 15, 1893. Serial No. 474,204.. (No model.)

To @ZZ whom t may concern:

Be it known that I, OsoAR CHARLES L. EKMAN, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Surface- Gages, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

My invention relates to surface gages and my object is to provide a gage with means for mechanically adjusting and setting the needle point, as distinguished from adjustment by hand; such adjusting mechanism comprising a needle grip upon the hub of a gear, a shaft carrying said gear and upon Which it rotates, and means to carry said shaft and adjust it vertically, and means, as awormscrew, to rotate the gear as may be desired, and swing the needle-point and adjust it vertically by the rotation of said gear.

My invention consists in the several novel features of construction and operation hereinafter described and which are specifically set forth in the claims hereunto annexed. It is constructed as follows, reference being'had to the accompanying drawings, in which- Figure l, is a side elevation of the gage, complete. Fig. 2, is a front elevation of the same. Fig. 3, is a vertical sectional elevation of the same.

A, is the standard erected upon a suitable base,and a is a sleeve adj ustablef verticallythereon by means of the set-screw -aeither with or without the use of the concave grip-plate -bbearing against the standard and forced against it by said set-screw; said grip-plate being, When desired, provided with end ilanges -hwhich fit in and are adapted to reciprocate in grooves -b in the ends of said sleeve. A shaft or arbor cis secured in said sleeve, and upon it the gear -dis loosely mounted having a hub d'- provided in its outer end with a concavity -e--, and h is a grip-disk also loose upon said shaft and provided with a concavity -ecoinciding with the concavity e-;

and -h"-is a set-screw upon the threaded end of said sleeve, and provided, when desired, with a concavity 7cinto which a coiled spring -lcis inserted, fitting around the shaft and creating' a spring friction grip upon the needle -mto hold it in the concavities -e-eand prevent its longitudinal movement therein, except when desired. Arms -nbranch out from said sleeve and -hfis a Worm-screw or gear mounted .therein in engagement with the gear -d-so that the rotation of thevvorm rotates the gear'and swings the point of the needle vertically and adjusts and sets it at the point desired, as shown by the dotted lines in Fig. 2.

The rotation of the gear is regulated by the set-screw -h What I claim as my invention, and desire to secure by Letters Patent, is

The combination with the standard and a sleeve adjustably mounted thereon, an arbor secured to said sleeve, and arms branching outward from said sleeve, of a worm journaled in said arms, a worm gear journaled upon said arbor and driven by said Worm, and a needle gripped upon the hub of said gear and at one side of the center thereof, and adjustable longitudinally.

2. The combination with the standardand a sleeve adj ustably mounted thereon, an arbor secured to said sleeve, and arms branching outward from said sleeve, of a worm journaled in said arms, a worm gear journaled