US1247758A - Miter-box. - Google Patents

Description

G. WATSN, Sn.

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MITER BOX,

APPLICATION FILED AUG.8. 1917.

Patented NWIs 27, 191?,

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GEORGE W'ATSON, SR., OF BROOKFELD, NOVA SCOTIA, CANADA.

MITER-BOX.

Application filed August 8, 1917.

J chester, Prov. of N. S., Dominion of Canada., have invented certain new and useful mprovements in Miter-Boxes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use.

the same. i

This invention relates to miter boxes, and has particular reference to adjustable miter box structures.

The object of the invention is to provide a practical miter box construction wherein a pair of swinging members move simultaneously to measure the same angle upon opposite sides of the line of out, so that by a reversal of the material which is being cut, the abutting angle may be cut with absolute accuracy.

Furthermore, the invention contemplates the provision of a' miter boX which is foldable into a compact relation for transportation, so that it may be disposed in a workmans kit.

lVith the above objects in view, and such others relating` to the details of construction, as may hereinafter appear, my invention will now be fully set forth and described, reference being had to the accompanying drawings.

1n the drawings Figure 1 is a plan view,

Fig. 2 is a rear elevation,

Fig. 3 is a section on line 3-3 of Fig. 1,

Fig. 4 is a front elevation of the device,

Fig. 5 is a bottom view, and

Fig. 6 is a section on line 6-6 of Fig. 4.

Referring more particularly to the draw ings, 1 represents a base or support upon which the swinging tables 2 and 8 are mounted. The support 1 is an elongated casting whose ends terminate in circular portions, which I term tables 4 upon which the tables 2 and 3 are pivoted by means of the bolts 5. The outer ends of the tables 2 and 3 are provided with the feet 6. Slide able through a transverse slot 7 formed in the middle point of the base or support 1, is a saw supporting bar 8, which also terminates at its ends in the feet 9, which together with the feet 6 provide an adequate support for the entire structure. Also mounted Specification of Letters Patent.

Patented Nov. 2'?, 1917.

sel-iai No. 185,139.

upon the bolts 5, below the tables 4, are the bars 10, the latter being secured to the bolts 5 at intermediate points, so that arms 11 eX- tend inwardly therefrom, and the outer ends of the bars 10 are secured to the bottoms of the tables 2 and 8 by means of a bolt 12 and 13 respectively. 1n order to properly support the bars 10 away from the bottoms of the tables 2 and 3 in suitable parallel and spaced relation, washers 14 are provided upon the bolts 12 and 13.

A connecting bar or link l5 connects the tables 2 and 3, one end of the bar or link 15 being mounted upon the bolt 12, and the opposite end of the bar having an elongated slot 16 which rides upon the bolt 13, a thumb nut 17 threaded on the bolt 13 provides a means for securing the tables in the various positions of adjustment at which the tables may be set. A series of graduations 18 upon the bar or link along the slot 16 are coordinated with the various angular positions of the tables. rThe inner ends of arms 11 of the bars 10 are pivotally connected to a pair of links 19, whose opposite ends are revoluble upon a common spindle 20 which eX- tends downwardly from the forward end of the bar 8. As hereinbefore stated the bar 8 is slidable through the support 1, and by reason of the connection provided through the links 19, when the tables 2 and 3 are swung with relation to the base 1, the bar is also moved with relation to the base. The ends of the bar 8 carry the saw- guides 21 and 22, said saw-guides including the slotted sleeves 23 which are slidable upon the correspondingly slotted standards 24, so that a miter saw will be properly supported, and limited in its cut.

The tables 2 and 3 are provided with the backs or flanges 25 along the rear edges, and through the flanges 25 are projected the clamping bolts 26 which coperate with the stops 27 which rise from the tables, so that material may be properly fastened for the sawing operations.

1n the use of the above described instrument, it is possible to adjust the tables for any cut within the parts indicated in Fig. 4, and the simultaneous movement of the tables 2 and 3 by which they are always set to the same angle upon opposite sides of the line of out, makes it possible to cut pieces for absolute it, by cutting one upon one table and one upon another.

Aside from the above dened advantages,

it will be apparent that the device is readily folded into a compact space so that it provides a satis'faotoryland'convenient tool for use in a carpenters kit.

Vhat I claim as my invention is i l. A miter box comprising in combination, a base plate, "saw vtables yupon the opposite ends of the b'a's'e Wplate, bolts engaged through the saw tables and the base plate, arms engaged with 4the bolts bel'ow the lbase Yplate and projecting Ainwardly of the bolts, ysaid arms `bein-g anohoredto the saw tables, a member slidable through the base plate between the saw tables, links pivoted to the inwardly vextendinfgiportons of Ethe arms-and with the sli'dable memberfnear therear'end thereof, an adjusting bar Connected with 4the arms Y0the opposite ends of the base plate, in'- wardly extending arms carried by vthe saw tables, 'a 'member slidable through the base Vplate between thersaw tables, links connecting the free ends of the arms t0 the rear end or' the slidable member, `ran;adj-listing' bar connecting thetables, andsaw supports-Carried near -theends of -thefslidablememben In testimony whereof, I afliX my signature in the presence foftwo witnesses.

\ GEORGE vVATSOY, SR. l/Vtnesses v FRANK P.-HAM.1LTON, `EMILY W. CARTER.

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