USRE448E - Improved carpenter s gage - Google Patents

Description

UNITED STATES PATENT OFFICE..

JOEL BRYANT, OF BROOKLYN, NEW YORK.

IMPROVED CARPENTERS GAGE.

Spcciiication forming part of Letters Patent No. l5,556, dated August 19,1856; Reissue No. 4.48, dated April 14,1557.

To all whom it may concern:

Beit known that I, JOEL BRYANT, of Brooklyn, in the `county of Kings and State of New York, have invented a new and Improved Mode of Constructing Carpenters Gages; and I hereby declare that the following is a full and correct description thereof, to wit:

The nature of my invention consists in prol viding gages with point-holders, so that the points, markers, or cutters ot gages may be screwed out or in at pleasure by having a screw-thread cut within the said holders corresponding with and acting upon a screw- .thread cut on the said points, markers, or cuta perspective view; Fig. 2, a longitudinal section; Fig. 3, the sliding catch of the holders in the mortising-gage; Fig. et, one of the points or markers; Fig. 5, one of the cutters, and Fig. 6 the lower sliding bar, showing the op ening for the points and cutters.

The gages are made of any suitable material and of any desirable size or forni. Iconstruct the mortising-gage, Fig. l,with an additional sliding bar, a, in the top part of the gage. Through this sliding bar a and the other sliding bar, b, I set one of the holders c, having previously cut out the middle portion of the gages, leaving the opening d, to allow the back holder, c, to move back and forth through the said openings d by means ofthe bars c and b, in which the said holder c isset. The other point-holder, g, is set just forward ofthe said opening d, and is stationary, except as it turns their place or beds o in the sliding bar b or in the metal face p. The metal face p, as shown by Fig. 7, has an elevation on its inner surface, as shown by Fig. 8, in which the pit ois formed to receive the end of the point-holder g, or the front point-holder, g, may be retained in place by means of a nut screwed on its point, the bed of the nut being sufficiently large to allow the said nut to turn in its bed with the said point -holder g. |This arrangement is shown in the drawings by Fig. 9. The pointl holders g and c of the said mortising-gages,

Figs. l and 2, are made round, like a hollow tube, with a screw-thread cut on the inside to receive the said points, markers, or cutters with a corresponding screw-thread cut thereon, the top part of the said holders g andcbeing flattened, so as to be conveniently grasped with the thumb and nger for operating the same. The points or'markers of the said mortising-gages are made square at their lower eX- tremities and sharp at the point,while the upper part is made round, with a screw-thread cut thereon corresponding to the screw-thread cut within the-said holders, into which they are received and retained for service. The markers for the said mortisinggages are shown in the drawings by Fig. 4. The cutters, Fig. 5, are made in the saine way, except that the lower part is made ilat,instead of bei-ng square. The markers and cutters, Figs. 4 and 5, in the said mortising-gages, Figs. l and 2, are operated by turning the said holders g and c, so as that the said markers or cutters are raised or lowered at plea-sure, on the principle of the screw, the saidpoints, markers, or cutters being made as above described or in any other way or manner equivalent thereto.

The advantages of my invention in its arrangement in mortising-gages, as above described, are, rst, the convenience of raising or lowering the points, markers, and cutters; secondly, the convenience of changing the markers for the cutters, and vice versa; thirdly, making the mortising-gage answer a threefold pu rpose-viz., the purpose of a mortisinggage when both markers are down, the pur-y their stead for the cutting of thin boards and veneering.

It will be observed that the foregoing'deseription relates, principally, to mortisinggages, yet it will be distinctly understood that I claim the use of point-holders for every kind of gage, as that they are ,equally applicable to one kind as to another, and that I do not c0niine my claim toany definite form or kind of holder for the points, markers, or cutters as herein described, but claim theright to use any and every form 0r kind of holder, means, or contrivancehavinga screw-thread out Within the same, and through the instrumentality of Which the said points, markers, or cutters, with a corresponding screw-thread cut thereon, are raised or lowered, protruded, or drawn in by means of the said kscrew-thread Within the said holders and a corresponding screwthread upon the said points, markers, or outters when operated for that purpose.

Of course I do not claim the invention of gages, nor the invention and use of markers or cutters for gages unless operated as herein set forth.

Vhat I do claim, and what I desire to secure by Letters Patent, is as follows: I

The invention and exclusive use of pointholders, or holders for the the points, markers, or cutters of gages and instruments equivalent thereto, irrespective of any particular or deiinite form or kind of gage and irrespective of any definite form or kind of holder, means, or eontrivance having a screw-thread eut Within the same, and corresponding with a serewthread eut upon the said points, markers, or cutters, so as that the said points, markers, or cutters are operated Within the said holders to be raised or lowered through the instrumentality of the said screwthreads Within the said holders and upon the said points, vniarkers, or eut-ters of thesaid gages orinstrumeuts equivalent thereto, as herein set forth.

JOEL BRYANT.

Wi tn esses:

EDMUND B. SMITH, O. H. GARDINER.

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