US71953A

US71953A - Samuel n

Info

Publication number: US71953A
Authority: US
Publication date: 1867-12-10
Anticipated expiration: 1884-12-10

Description

@auch faire strut @ffice SAMUEL N.v lBATCHELDER, OF PRAIRIE DU CHI-EN, WISCONSIN; Letters Patent No. 71,953, dated December 10, 1867.

IMPROVEMENT IN rar-Sonates AND BnvNLs. 4

TO ALINWHOM 'IT- MAY CONCERN:

it known that'I, SAMUEL BATCHNLDER, ot' PrairieduChien, in the county of Crawford, and State of Wisconsin, have lnvented a new and useful I mprovement in Combined Try-Square and Bevel; and Ide lhereby declare that the following is a. full, clear, and-exact description` thereof, which till enable those skilled 1n VJthe art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

This invention relates to a neviY and useful combination of tw'o tools, which are both indispensable 'to the joiner or worker in Nvood, as well as in iron or other metals; and it consists in attaohingthe blade of fatty-square to the stock in such a manner that it can be set and fastened at any desired angle by operating a hook-slide and set-screws, as I n rill proceed to describe. v l

"Figure 1 represents a section of the tool through the line z a: of ig.2, showing a side vieyv fand the arrange# ments o`- tbe parts of which it is composed.

Figure 2 is a top or end View of the same, showing the scale or lines which indicate the different anglesrto which the blade may be set. f I

Similar letters of reference indicate corresponding parts. y

A is 4the stock, and B is theblade. Theblade is pivoted `to the stock by ,the thumb-screw C. The stock is separated through its width from the top to the point a, so thatr'theblade can drop to"forn 1 an acute angle with the stock when desired. D is the hook-slide, which is4 operated and' fastened in place'- by a set-screw, E, mrthe back of the tool. The thumb-screw passes through the slide with a screw-thread, and draws the slide against the back plate c, which plate has a slot througbit -in which the srewlis moved.- The back en d of the blade extends back and forms a hook, as seen in the drawing jat e. 1F Visa spiral spring which'is placed inside the face-plate d, and which is attached tothe stock atf and to the blade at g. The tendency of thisspring is to draw down-the blade when the thumb-screws C and E are loosened. n` the top of the stock there is a scale of degrees, as avguide in setting the blade to anyl desired angle. i

As indieated'in the drawing, the corner of the blade h stands at ninety degrees. 'When in this position the blade stands at right angles with the stock, and it is then a try-square.` The blade need'notnecessarily be` fastened in this position; and unimportant feature is that the operator is enabled to square his work by standing erect and noticing the position of the corner of the blade.' It' the corner stands at ninety. degrees when the square tits the work the work, is square or at' right angles. iThis device obviates the necessity of stooping, and also the'inconvenielice occasioned by a bad light.

v To set the plate at any desired angle, either acute or obtuse, it is only necessary to loosen the screws and.

adjust the sliding hook to the blade, then tighten the screws as before. The advantages of this arrangement are many, and must be vobvious to sill. l

What I claim, and desire to secure'by Letters Patent, is l 1. The blade B pivoted within the stock A, and provided with a hooked projection, e, by means of `which, and the hook-slide D, the blade B may be set and held at anydesired angle, substantially as described and for the purpose specified.

2. I clairn the hook-slide D with the thumb-screw E, arranged and operating substantially as shownand described, for the purposes set forth.v 4

3. Iclaim the spiral spring F, in combination with a combined trysquare and bevel, substantially as described.

i .'-SA1\IUEL N. B'AronELpEn.'

Witnesses S. SfrILns, JAC. RAFIAUF.'