US579143A - Bevel-gage - Google Patents

Description

b (No Model.)

1). w. FISH & P. BARRAGAN. BEVEL GAGE.

No. 579,143. Patented Mar. 23, 1897.

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DAVID W. FISH AND FRANK BARRAGAN, OF DOLGEVILLE, NEWV YORK.

BEVEL-GAGE.

SPECIFICATION forming part of Letters Patent No. 579,143, dated March 23, 1897.

Application filed Tune 27, 1896. Serial lilo. 597,165. (No model) To all whom it may concern;

Be it known that we, DAVID WV. FISH and FRANK BARRAGAN, citizens of the United States, and residents of Dolgeville, in the county of Herkimer and State of New York, have invented certain new and useful Improvements in Bevel-Gages; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a side elevation of the invention. Fig. 2 is a plan view of same. Fig. 3 is a section on line x at, Fig. 2. Fig. 4: is a perspective view of clasp or slide inverted. Fig. 5 is a perspective view of bevel-adjusting device.

The object of this invention is to provide a simple and efficient gage which can be readily and accurately adjusted to suit the bevel of the work upon which itis to be used to insure accurate marking; and'the invention consists in the novel construction and combination of parts, all as hereinafter described, and pointed out in the appended claims.

Referring to the accompanying drawings, the letter A designates the gage arm or bar. 13 designates a clasp or slide which is of rectangular box form and which is adapted to receive therethrough the clasp arm or bar. Formed at the upper lateral portion of said clasp or slide are two opposite vertical perforated lugs 11. The bottom of said clasp or slide is usually beveled off at the front end portion, as indicated at b, and is formed with an open slot 5 to admit the marking or scratch point C in narrow gaging.

D designates the bevel-adjusting device, which consists of two parallel sector-shaped plates or wings whose front edges are connected by a plate portion D, which is cut away at d to receive thereon the slide or clasp B in the manner shown. At the lower edge of the cut-away portion clthe plate portion D has a transverse half-pivot bearing d, which fits a transverse concave depression or bearing-groove (Z formed on the under surface of the bottom of the clasp or slide.

Said

plate portion is made to project laterally at each side beyond the wings, as shown. Said wings are each formed with an elongated slot E, which is on a radius from the pivotbearing d (P. Extending through these slots and through the perforations of the lugs b is a bolt F, having a headfat one end and a thumb-nutf at its opposite end. Said bolt has a squared engagement with the lugs b and also, preferably, with the washer f whereby itis prevented from turning. By loosening the said thumb-nut the device D can be readily adjusted upon its bearing d d and upon the bolt F to give the desired inclination to the front face of the plate portion D. hen the device is so adjusted that the bolt is at the upper ends of the arcuate slots E, the said plate portion is in true vertical position and the gage is adapted to straight-edged work. As'the device is swung forwardly the said plate portion is given an inclination which constantly approaches more nearly the horizontal. By tightening the thumb-screw it may be rigidly secured in any desired adjustment, according to the bevel of the edge of the work to be marked. Said thumb-screw also binds the slide or clasp to the gage bar or arm A and secures its adjust menton said bar or arm, as well as the ad j ustment of the device D.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. The combination with a gage arm or bar and with a slide or clasp movable longitudinally thereon, of a beveladjusting device,

comprising a pair of parallel slotted, sectorshaped wings which embrace said bar and slide, and a plate portion which connects the front edges of said wings and is cut away to receive the said slide, the lower edge of the cut-away portion having a pivotal bearing on the bottom of said slide, and an adjusting bolt or screw passing through the slots of said wings and also engaging said slide, said bolt TOO bar, and with a slide movable longitudinally thereon, and having projecting parallel lugs upon one side of the bevel-adjusting device having the slotted parallel wings which embrace said bar and slide and whose end portion is cut away to receive the same and is provided with a pivoted bearing on the bottom of said slide, and the bolt extending through the slots of said wings and also through perforations of the said lugs, said bolt affording means for connecting the slide and beveladjusting device, and also for securing the adjustment of the slide upon the bar and the angular adjustment of said device, substantially as specified.

3. The combination with the gage arm or bar having a marker or scratch, of a clasp which engages said bar, and is designed to slide longitudinally thereon, said clasp hav- DAVID W". FISH. FRANK BARRAGAN.

lVitnesses:

IIELAM BRUNKHORST, WM. SPooR.

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