US266646A

US266646A - Marking-gage

Info

Publication number: US266646A
Authority: US
Publication date: 1882-10-31
Anticipated expiration: 1899-10-31

Description

(No Model.)

F. H. ROSSMAN.

MARKING GAGE.

No. 266,646. Patented Oct. 31, 1882.

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FREEMAN H. ROSSMAN, OF WAPPINGERS FALLS, NEW YORK.

MARKING-GAGE.

SPECIFICATION forming" part of Letters Patent No. 266,646, dated October 31, 1882.

To all whom it may concern Be it known that I, FREEMAN H. RossMAN, of \Vappingers Falls, in the county of Dutchess and State of New York, have invented certain new and useful Improvementsin Gages and Markers; and I do hereby declare that the following is a full, clear, and exact description of the invention, which willenable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to taper gages and draw-bore markers, and has l'orits object to provide a simple, inexpensive, and ellicient device.

To this end it consists in certain improvements in the construction and operation otthe same.

In the drawings, Figure l is a side view of the device; Fig. 2, a longitudinal vertical sectional view thereof; Fig. 3, a horizontal sectional view on the line .10 a, Fig. 1; Fig. 4, a transverse vertical sectional view on the line y y, Fig. 1; Fig. 5, a like view on the line z 2, Fig. 1; and Figs. 6, 7, and 8, views illustrating the use of the device.

Referring by letter to the drawings, A des igna'es a heel-plate, having a longitudinal groove or recess, 13, in its top face and longitudinal shoulders U G at its lower edges, one end,D, beingcurved, and the other, E, straight, as shown.

F is an arm adapted to be received into groove B, and longitudinally adjustable therein by means of a screw-bolt, Gr, passing up through the heel-plate, and a longitudinal slot, H, in the arm, a thumb-nut, I, being provided on its end. The heel of arm F is provided with a long marking pin, J, and near its too with a smaller pin, K. At the latter end is also provided alongitudinal slot, L, through which passes the square shank M of a screw-bolt, N, having a cylindrical collar, 0, at its headed end and a thumb-nut, P, at the opposite end. The part 0 forms the toe-plate, and may be longitudinally adjusted by means of the bolt and nut.

The operation and advantages of my inven- Applicution filed June 13, 1882. (No model.)

tion will be readily understood. \Vhen drawn down a square taper stick with the arm at right angles to the stick, as at Q, Fig. 6, the pin K will make a line, 1%, parallel to the sides; but when the arm is placed diagonally, as at S, Fig. 6, the line will not be parallel to the sides, but perfectly straight, as at T. Then by reversing the position of the arm a line parallel to the straight line T can be formed. In these movements the curved edge of the heel-plate engages the edge of the stick and the lines are drawn toward the smaller end thereof.

For marking draw-bore holes in mortises, the device is placed in the position shown in Fig. 7, with one shoulder, O, engaging the edge of the stick at the mortise, and the mark is made by the pin J.

In marking draw-bore holes in tenons the shoulder O engages the edge of the tenon, with thesquareend oftheheel plateabuttingagainst the shoulder ofthe tenon. The mark is made by pressing on pin J, all as shown in Fig 8.

I claim and desire to secure by Letters Patent- 1. The combination, with a heel-plate having a longitudinal slot in its upper lace and shoulders at its lower edges, one end being curved and the other straight, of a slotted arm longitudinally adjustable, and provided with a toe-markingpin and a longitudinally-adjustable cylindrical toe-plate, substantially as set forth.

2. The combination, with a heel-plate having shouldered edges and grooved, one end being curved and the other straight, and a securing-bolt and thumonut, of a slotted adjustable arm having a heel and toe marking pin and provided with a toe-plate l'ormed by a screwbolt having a cylindrical shank, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto atlixed my signature in presence of two witnesses.

FREEMAN HENRY ROSSMAN.

Witnesses:

ALLAN SMITH, H. CLAY ABEL.