US1253082A - Surface-gage. - Google Patents

Description

L. NEUIVIANN.

SURFACE GAGE.

APPLICATION mzo NOV. 10.1916.

Patented 32111.8,1918.

WITNESS yam ATTORNEY LOUIS NEUMANN, on NEW YORK, 1v. Y., ASSIGNOR or ONE-HALF r0 FRANCIS X.

' s'rnrrAivs, on NEW YORK, N. Y.

SURFACE-GAGE.

Specification of Letters Patent.

Patented Jan. 8, 19.18.

Application filed November 10, 1916. Serial No. 130,631.

To all whom it may concern 7 Be it known thatI, Louis NEUMANN, a citizen of the United States, residing at New York city, in the county of New York and State of New York, have invented new and useful Improvements in Surface-Gages, of which the following is a specification.

This invention relates to surface gages and particularly to that class including a stylus which is adapted to be arranged above the surface to be operated upon and to be moved thereover manually and to be actuated during such movements so as to indicate inequalities in the surface.

Another object of the invention is to produce a device of this character which can be 'eadily supported from an ordinary straight edge so that the latter can be elfectually advanced. against the surface to be gaged and the stylus adjusted on the straight edge and in the direction of the surface to be gaged at the convenience of the operator and according to the conditions of the work that is present.

Another object of the invention is to produce a surface gage which will include a stylus, means for effecting an approximate adjustment of the stylus with relation to the surface to be operated upon, and a second means directly supporting the first means and adapted to permit very fine and delicate adjustments to be subsequently taken in the stylus.

lVith the above and other objects in view which will appear as the nature of the inven tion is better understood, the same consists in the improved construction and novel arillIg'GlllQlltS of parts which will hereinafter be fully described and particularly pointed out in the claims.

In the accompanying drawings, has been illustrated, a single and preferred form of the invention, it being, however, understood that no limitations are necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the claims may be resorted to when desired.

In the drawings Figure 1 is a side view of the gage.

Fig. 2 is a plan view thereof.

Fig. 3 is a vertical section therethrough on the line 3-3 of Fig. 1.

Fig. is a perspective view of the clamp mg screw.

Fig. 5 is a longitudinal section on line '55 of Fig. 1.

The device consists of a U-shaped bracket 1, having substantially parallel sides 2 and 3 and a connecting end portion .1. The device is adapted to be applied to an ordinary straight edge Or square and the blade of the latter is adapted to come into the space 5, between the sides 2 and 3 of the bracket 1. A clamping screw 6, is slidably mounted in a channel 7, in the side 2, of said bracket 1, and said screw is provided with a head 8, which plays in the space 5, whereby it is adapted to co-act with the square or straight edge for the purpose of insuring an operative connection between the gage and said square. At one end the screw is provided with an adjusting nut 9, which is associated with the bracket 1, so that the screw can be fed with relation to the straight edge.

A rocker 10, is mounted upon the side 3, of the bracket and is provided with a sector 11, having an arcuate toothed surface 12, which terminates directly in ad *ance of the rear end of said side 3, as shown. Adjacent to the toothed surface are brackets 13-13, in which an operating screw 1%, is swiveled. The threads of the screw intermesh with the teeth 12, of said rocker, and one end is provided with a manipulating knob 15. In this manner it is seen that the rocker can be tilted at the convenience of the operator and very delicate and fine adjustments obtained.

The rocker has a forwardly rising arm 16, in which a stud 17, is mounted for oscillatory movements. This stud is provided with a split end 18, through which a stylus 19 or marker is slidably mounted. The stud passes through a bushin 20, which is adapted to be drawn into frictional contact with the split portion of the stud and against the extension 16, under the action of a clamping nut 21. In this manner the stylus is held against sliding movement and the stud retained against oscillatory movement. By providing the stud an initial or approximate adjustment of the stylus can be obtained with relation to the work to be gaged.

The device is universally designed for the purpose of gaging all surfaces and is admirably useful in setting up to the workman inconsistencies or irregularities in flat work.

What is claimed as new is 1. In a surface gage, thecombination with a U-shaped bracket whose arms are spaced for the reception of a straight edge and one of which is channeled in its inner side, a screw longitudinally movable within said channel and with its threaded end extending through the bend of the bracket and its inner end having a head projecting into the space between said arms, and a nut threaded on said projecting end; of a rocker pivoted on said bracket and having an upstanding arm, means for mounting a stylus in said arm, and means for turning the rocker on its pivot.

Copies of this patent may be obtained for 2. In a surface gage, the combination with a U-shaped bracket, and means for clamping a straight edge between the arms thereof; of a rocker pivoted on said bracket and including a toothed sector atone end and an upstanding arm at the other end, a screw swiveled on the bracket and with its threads engaging the teeth of said sector, a stud mounted through said upstanding arm and split at its upper end and threaded at its lower end, a nat on said threaded end, a stylus Within the split end, and a bushing surrounding said stud between its split portion and said head whereby tightening of the nut clamps the stylus, as described.

In testimony whereof I aiiix my signature LOUIS NEUMANN;

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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