US1341481A - Combination-gage - Google Patents

Description

W. SALT.

COMBINATION GAGE.

APPLICATION FILED DEC. 7. 1918.

1,341,481 Patented May 25, 1920.

Qwwewtoz UNlTED STATEfi @QFFIQE.

WELLINGTON SALT, 0F BUFFALO, NEW YORK.

COMBINATION -GAGE.

To all whom it may concern:

.Be it known that I, lVnLLiNcToN SALT, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented new and useful Improvements in Combination-Gages, of which the following is a specification.

This invention has reference generally to improvements in measuring instruments and more particularly relates to a combination gage.

It is the principal aim and object of the present invention to provide a device of the above mentioned character designed to be used in the nature of a butt gage while the parts are so constructed and related to each other that the relation of the same may be easily and quickly changed to permit of the use of the device as a mortising gage.

More particularly the present inventlon contemplates the provision of a device of the above mentioned character wherein there is employed a body designed for adjustably accommodating marking screws which are capable of being readily locked in a predetermined adjusted position so as to permit of the accurate use of the device.

It is an additional object of this invention to provide a device of the above mentioned character which is simple in construction, thoroughly reliable and eflicient in its purpose and inexpensive in manufacture.

Other objects will be in part obvious and in part hereinafter set forth.

The invention accordingly consists in the features of construction, the combination of elements and the arrangement of parts which will be amplified in the construction hereinafter described and the scope of the application of which will be indicated in the appended claim.

The invention is clearly illustrated in the accompanying drawings, in which:

Figure 1 is a perspective view of the invention with the parts assembled for use as a butt gage.

Fig. 2 is a perspective view of the dev ce with the parts arranged for use as a mortising gage.

Fig. 3 is a longitudinal sectional detail view through the body.

Fig. 4 is a transverse sectional detall view through the body, and

Fig. 5 is a perspective detail of the modified form of the invention.

Specification of Letters Patent.

Patented May 25, 1920.

Application filed December 7, 1918. Serial No. 265,731.

Similar characters of reference are employed in all of the above described views, to indicate corresponding parts.

lteferring now, more particularly, to the accompanying drawings there is provided a substantially rectangular body 1 formed of suitable material such as aluminum and recessed on its under face to provide a guide or shoulder 2 along one side edge thereof. The body is also provided with spaced transversely extending threaded bores 3 and a one end of the latter of which is counter-sunk as at 5 for a purpose that will presently appear while the body is also formed at the respective ends with inwardly extending slits 6 which communicate with the adjacent bores. The upper surface of the body 'is cut away between the two bores to provide a finger or thumb receiving recess '7 while the upper surface near the respective ends is slightly re duced forming substantial resilient portions 8. Screw bars 9 and 10 are now employed and are formed with heads 11 beveled between their outer surfaces as at 12 providing substantial cutting edges 13 while the outer faces of the heads are slightly concaved as at l l to facilitate sharpening thereof. The screw 9 is longer than the screw 10 and these screw bars are respectively mounted in the bores 3 and 4.

In order to lock the screw bars 9 and 10 in various positions of adjustment the body is provided near the respective ends and through the resilient portions 8 with vertically arranged and threaded apertures 15 in which are mounted set or lock screws 16 designed for clamping the resilient portions 8, formed near the upper surface and the reduced ends of the body, against the lower portions of the body immediately beneath the said resilient portions as illustrated, this action causing a restriction on the size of the bores so as to create a frictional engagement with the screws to prevent accidental movemerit thereof.

In Fig. 5 there is shown a slightly modified form of the invention and instead of constructing the body "relatively straight the same is formed in front elevation of a substantial V-shape, the idea being to raise the long marking screw over the thick door casing when using the short marker for indicating the thickness of the hinge as will be apparent.

In the use of the preferredembodiment of the invention as a butt gage as illustrated in Fig. 1 particularly the marker or screw bar 9 is adjusted so that the proper distance or space is obtained between the shoulder 2 and the cutting edge 13 of the head thereof whereupon the adjacent lock screw 16 is tightened. The body isnow applied to one edge of the door for instance so that the shoulder engages the edge and with the thumb in the recess 7 the body is moved along the edge of the door so that the cutting edge will mark the door. When using the device as a butt gage the elongated marking screw bar 9 is now changed; that is, it is removed from one end of the bore and inserted in the opposite end so as to position the head on the same side of the body as the head of the short screw bar. The screw bars are now adjusted, the counter-sink 5 permitting of the head 11 of the screw bar being partially received therein so as to permit of the marking of the work very close to the edge thereof. The lock screws 16 are, of course, tightened so as to maintain the screw bars in the proper position of adjustment whereupon the body is arranged against the work, the outer edge of the shoulder or guide contacting with one edge of the work while the cutting disks are arranged in properly spaced relation on the adjacent side of the work so that spaced marks will be made upon the work upon the sliding of the body, as is apparent.

It is believed in View of the foregoing description that a further detailed description of the operation of the invention is entirely unnecessary. Likewise it is believed that mounted in the respective ends of the body for adjusting the resilient portions to restrict the size of the bores and thereby clamp the bars against accidental movement.

In testimony whereof I aflix my signature.

WVELLINGTON SALT.

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