US1279919A - Gage. - Google Patents

Description

L. SCUSA.

GAGE. APPLICATION FILED JAN-24,1918.

1 ,279, 9 1 9 Patented Sept. 24, 1918..

WITNESSES L Lg BY M182 #aawcx ATTORNEY UNITED STATES PATENT OFFICE.

LINO SCUSA, OF ROCHESTER, NEW YORK, ASSIGNOR TO L. SCUSA MACHINE 8c TOOL 00.,

IN (1., OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

GAGE.

Specification of Letters Patent.

Patented Sept. 24, 1918.

Application filed January 24, 1918. Serial No. 213,588.

To all whom it may concern:

Be it known that I, LINO SoUsA, a citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Gages, of which the following is a specification. a

This invention relates to improvements in gages, designed for use by machinists, toolmakers, and the like, and has for its object to provide a snap gage particularly adapted for gaging manufactured or stock articles, wherein the gages are adjusted and set and used for turning out a number of similar parts. A further object is to provide a gage of the class whichis capable of being set for accurately gaging and indicating the rough, as well as the finish cutsand sizes to the smallest fraction of an inch. And a particular object is to providenovel, simple and positive means for readily, quickly and precisely adjusting the several movable gage-parts, and for retaining the various adjustments during the periods of work.

I attain these objects by the means set forth in the detailed description which follows, and as illustrated by the accompanying drawing, in which 7 a Figure 1 is aside elevation of the complete gage, withparts broken away to show one of the sev-eraladjusting parts.

F ig. 2 is a top View of the parts shown in Fig. 4.

Fig. 3 is a horizontal section, on line 3-3 of Fig. 4; showing the means for guiding V adjusting nut.

the gage-points. V

Fig. 4 is a vertical cross-section, taken on line4 4 of Fig. 2; showing the adjusting, retaining and guiding means on an enlarged scale." i v 1 Fig. 5 is a perspective view of the split In the drawing, Qrepresents thebody of the gage, which "is preferably in the form of a horse-shoe, having similar arms 3 and 4. Each of said arms is provided withtwo or more gage-members, as 67, and 6 -7, the corresponding members being disposed in the respective arms concentrically. The gage-rnembers 67 and 6'7, are all pref- 11, which is engaged by a pin or stud 12,

the latter being preferably driven tightly into the arm 4. The slot 11 is preferably so positioned that it does not at any time show beyond the body, in order to exclude dust and dirt from entering the same. This pin and slot construction prevents the rotation of the gage-member, but allows the said member to be moved endwise during the adjustments. Each gage-member is bored out centrally for a part of its length, and the said boreis threaded, as indicated at 13, to reccivea looking-screw 14.

15 represents a split expansible screwthreaded' sleeve, externally threaded, which screws into the threaded end of the bore 10, and the said sleeve is employed forvmoving and regulating the adjustment of the gagemember. The sleeve 15 has a screw-driver slot 15 in its outer end, and is also counterbored, as at 16, to receive the head of the locking-screw 14, while the body of said screw passes loosely through a hole 17 which is concentric'to the threaded hole or socket 13of the gage-member, as well-as to the counterbore 16 of thesleeve 15. The head ofthe screw 14, and the inner end of the counterbore 16 are. correspondingly tapered or beveled, preferably at about 60 to the end of the screw. The head of screw 14 has. the usual screw-driver slot 18.

The operation of my improved gage-member adjusting andlocking means is as follows: To change or readjust one of the gage-members, as 7, in onedirection, the operator takes a screw-driver, inserts it in the counterbore 16 and unscrews the screw v14 about one turn He then unsorews the remain in the latter position.

The final operation consists of tightening up the screw 14, which draws the gage-member tightly against the inner end of the sleeve 15, and at the same time the tapering head of said screw expands the split sleeve 15 until it becomes t-ightand immovable in the bore 10. To adjust the gage-member in the opposite direction, the operator first unscrews the screw 14- sufiiciently to allow the sleeve 15 to contract and become loose, then he screws the sleeve 15 inwardly, which forces the gage-member out of the hole 10 until the proper adjustment is accomplished. The screw 14 is then screwed up tightly for expanding the sleeve 15 and again drawing the gage-member and sleeve tightly together, in which condition the par-ts remain until a new adjustment is required. After the gage is properly adjusted, as described, the hollow space or cavity, as 16', at the outer end of the sleeve 15 is preferably filled with wax or like substance for temporarily concealing the sleeve, and thus preventing tampering, or accidental changing of the adjustments of the gage members.

Where but a slight adjustment is required, only the gage-member carried by one of the arms of the body need be changed. In case the adjustment of the gage is to be greatly increased or decreased, the gage-members of both'of the arms 3 and 4 of the body may be changed, as described.

Themeans herein shown and described for eiiecting the adjustment of the several gage-members are extremely simple, convenient and positive, and enable mechanics to readily and accurately adjust the device for gaging close and fine work, and to preserve or retain such adjustments indefinitely.

It is obvious that some changes or modifications of the parts may be made within the scope defined by the appended claims with out departing from the spirit of the i1 vention.

, Having thus described my invention, what I claim as new and desire to secure by Letters Patent, 'is.-

1. .In a gage, a reciprocable gage-member, a split screw threaded sleeve alining with and adapted to reciprocate said gage-member and a locking-screw provided with a tapering head pivotally connecting said gage-member and said sleeve and adapted to expand said sleeve for holding said gagemember in adjusted positions. r

2. In a gage, a gage-member having a threaded socket, a locking-screw provided Gepies or this patent may be ebtained for with a tapering head engaging said socket, and a split adjusting sleeve disposed in line and in engagement with said gage-member havinga counterbore to receive the head of said screw.

3, In a gage, a gage-member having a threaded socket, an expansible screwthreaded sleeve alining with said member having a counterbore concentric to said socket, and a locking screw passing through said sleeve and screwed into said socket and adapted to expand said sleeve for preventing change of the adjustment of said memher.

4;. In a gage, a plurality of gage-members having threaded sockets arranged in pairs alining and movable toward and away from each other, a'split screw threaded adjusting SlQGXG associated with each gage-member, and a screw provided with a tapering head, passing through each sleeve and engaging the socket in the corresponding gage-member and adapted to draw and hold the gagemember and sleeve tightly together, the head of said screw positioned in the sleeve and adapted to expand the sleeve for preventing accidental movement of the gagemember.

5., In a gage, a cylindrical gage-member having a threaded socket and an external guide-slot, a pin engaging said slot for preventing rotation of said member, a' split screw threaded sleeve disposed in line and in engagement with one end of said member and having a counterbore and a locking screw provided with a tapering head pivotally connecting said gage member and said sleeve, the head of said screw disposed in the counterbore of said sleeve and adapted to expand said sleeve for holding said gage member in adjusted )ositions.

6. In a gage, a cy indrical gage-member having a threaded socketand an external guide slot concealed in the body of the gage, a split screw threaded sleeve having a tapering counterbore disposed concentric to and in engagement with one end of said gage member, a locking screw having a tapering head pivotally connectingsaidgage memher and said sleeve, the head of said screw disposed in the tapering counterbore in said sleeve and adapted to expand said sleeve for holding said gage member in adjusted positions, and a pin engaging the slot in said gage member for preventing the rotation of said gage member.

In testimony whereof I afiix mysignature.

, LINO sousa.

five cents eachylgy addressing the .commi ssioner of Patents, Washington, I). (3.

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