US1599324A - Miter box - Google Patents

Description

Sept. 7 1926.

c. B. FRANKLIN MITER BOX Filed July 50. 1925 3 Sheets-Sheet 1 8mm 6. 5. fkA NHL/N Sept. 7, 1926.

:1-;-599,324 C. B. FRANKLIN MI TER BOX Filed July 30, 1925 25 Sheets-Sheet 2 Sppj'. 7', I926. 1,599,324

C. B. FRANKLIN MITER Box i Filed July so, 1925 3 Sheets-Sheet s Gaol/"$419 Fatented Sept. 7, 1926.

i Application filed July 30, 1925}? 's iia'l its. 4 7,1

This invention relates" notronly to the general construction of miter boxes, but deals also with unique saw-guidlng means.

One .objectof the inventionis to provide;v

an unusually simple and inexpensive, yet

, Inthe' drawings v I g the numeral ,1 designates a bottom boa-rd s V v *beingprovided at eachend of each member -m'ally spaced above the work-bench; or the a .an eflicient anduvery desirableimiter box which may readily be, adjusted (for cutting- 1 "lock the 'men -ber's stock at any desired angle.

I Another aimistoi proyide .a construction which may be readily'd sasse nbled and car- H p p 1 bers 7 may be swung todifferent-angular" ried in a tool bOX;

A still further aim is to provide a miter box of'a type jhavingaguidihg rollers for an ordinary saw, and equipped with novel means whereby said roller-s may be rela tively adjusted.

V Vith the foregoing in View, the invention resides 'in' the="novel subject matter, hereinafter described and clairned, the description being supplemented drawings. .7 Figure 1 is a top plan view partly broken away and inhorizontztl' section; I

Figure 2 is a side-fel'eyati'on. Figures 3 and l are "vertical views as indicated by? linesf3%,3 and M Figi'ire 5 is a horizo-ntal sectional view partly inplan', as indicated by line of Figure 6 is'an elevation showing Y marily the e tension'saw-guiding means.

-Figure isatop plan plate of the device;

shown in Fig.;7'. V 7 above briefly described,

which may be: of any desired proportion. Secured by'sorews or the like-- 2, to the lower side of this board 1, is a base plate 3 of circular outlinep said pl ate having a' continuous groove=4 in its edge, 'forminguai guide track; The plate'3" is provided with a downwardly "projecting stepped stud '5; which is concentricwith-thefedge of sand} plate, the lower end ofthe stud being norlilze upon which the inl i terlbozeis-used, by appropriate legs 6 "which Tare suit-ably secured to-the bottom board 1, 'a s sho=wn for nstance,invF g-r -Wq s I 'lwo horizontally elongated ,members 7 are provided with depressed central poitions 8 whichcross each other. and extend 7 under the base p1ate 3, said members 7 havby "the accompanying view of the base ,s teena er); through time a stud 5- passes, Y a nut 10 being threaded on thelower end ofthis stu d'," gPreferably, a Washerll .is interposed between the two members '7 and" another washer "is positioned between the lowermostof the members an'd'the nutw 1.0. When thisniit is tightened, cannot Y 7' against pivotal movement about the stud 5, due to'the shouldered formation of the latter. Hence, the n1e'n 1- PQSitionS with p Q o the bottom board 'Forlocking these members in any d sired, adjusted 'positionl'they are provided with spring press'ed detents 13 'engageable with a toothed segment 14: whiclris secured to thebottoin of thefboard l psa'iddetents preferablyliaving releasing 'tr1=ggers' 1 5 at the lower sides of the members'i. Theen'ds hold them'.-against chattering when thesaw is being operated, said-"members areprov vided with'pro-jecting lugs 16 received slidsectionalably in the-groove 4'." Opposed portions of theplate 3f at the lower side ofthis groove,

may well be cut away as indicated at 17,"to

'allbw the lugs 16 to be engaged with the groove when assembling the device, or dis- "engaged from said groove-wliei1-*disassembllllgt desired," however, otherprovis'i'onf" V y could' be "made to"perm 1tthis a sseinbly'and disassembly.

- The ends of the members Tprojethtw ally beyond the board and fare" provided :stand'ing'rig-i'd posts' l9i are"; secured by screws or the likei20, two of "these posts "7 These'post's are o fsuch form asto pro-1 channels 21, I and] saidljposts are provided;

with upp 2 v of said channel's, said Walls being; prefer walls 22 at the" upper endsformed sepanatel y from the body 'portioiis ofthe posts 'and sec'ured in place byv screws as shown -i'nFig. I

bearings 25 are slidably mounted bearhaviri'g lateral flanges 7 lower s des of the wallsaaand nuts 29 are provided on the studs 27'and when the nuts are tightened,the bearings Thef'end walls22 are'fornied with slots2 "inj'whieh fiat-sided I 26a 'aeent ithe -vided upstanding studs l ivh r se I to points above saidwal'lsi, Was-he ls sea-ad:

25 are held' in adjusted positions With re- I trunnions 34 and 85 which project from up-. per and lower metal plugs 35 and 36, said plugs being disposed in sockets 87 in the ends of rollers 38, these rollers being preferably formed of wood. Metal rods 39 extend through axial bores 40 formed in the rollers 88 and serve to tightly connect the plugs 35 and 86. Preferably, the rods, 39 are integral with the lower plugs 36 and are threaded into the upper plugs 35 as shown. I By the construction and arrangement shown and described, the closely spaced, parallel, saw-guiding rollers at opposite ends of the members '7, are rotatably mounted and mounted for any necessary adjustments, in a very rigid, eflicient and desirable manner.

If desired, saw-guiding extensions may be employed, as shown in Fig. 6. In'this view,

vertically alined bearings 41 are shown car vried by the posts 19 at opposite sides of the saw path. In these bearings, vertical rods 42 are slidably received, said rods being of a length to projectupwardly beyond vthe posts and having their upper ends bent downwardly as at43 into parallel relation, forming auxiliary saw guiding means.

At suitable intervals, one edge of the bottom board 1 is provided with upstanding stock-guiding posts 44 which are suitably s cured. to metal plates 45, the latter being in turn secured to the board 1 by screws or the like 46, as shown most clearly in Fig. 3;. Two of these. posts are preferably so located, as to indicate the proper positions for the members 7, when they are setior cutting either right or left hand miters of .45". Thus, it anyone has changedthe adjustment of the box after it has once been set, and someone wishes to cut a miter, he can tellat a glance before the cut-has been made, that the adjustment of the box has been changed. He can then. readily readjust the device'to the proper extent and make thecutQ Thus, .thereis no danger of wasting any material by making the wrong cut thereon accidentally. e

7 is set. for a cut at right angles to the length or" the stock, a pairof auxiliary ,posts '47 are preferably provided, suitably mounted at one edge of the board 1, said posts being adapted to receive between them, the

Atv 48, I have. shown saw guiding means which consists of posts and rollers such as those above described, said means being lo cated at one end of the board 1, in position tov guide the saw for cutting at right angles to the length of the stock, if it is not desired to change the adjustment ofthe other saw-guiding means.

It will be seen from the foregoing that my invention is rather simple and inexpensive, yet that it will be highly efiicient.

Particular.attention is directed to the fact that the device maybe quickly and easily disassembled and compactly positioned for carrying in small space. For mstance, all

of the metal parts and the wooden-rollers may readily be carried in an ordinary tool box and when theiru'se is necessary, they may be quickly and easily attached to an oi.'di11a1'y.two by six or two by eight, so as to retain them in operative relation and produce an effective miter box.

As excellent results are obtainable from the details disclosed, they are preferably followed; However, within. the scope of the invention as claimed, numerous vmo difications may be made.

I claim 2- 1. A miter. box comprising a bottom member, a base plate secured to the lower side thereof and. having horizontal trackage" curved about a central point, a pair of crossed horizontally elongated members under the bottom member. and base plate and pivoted to the latter at said central'point, said crossed members each having a portion slidably engaged with said trackage, saw

guides rising from the ends of said crossed members, and means for holding said members in augularly adjusted positions."

'2. A miter box comprising a bottommember, a base plate of circularoutline secured to the lower side of said bottom member, said base plate having a groove in its edge and a downwardly projecting bearingstud at its center, a pair of crossed centrally depressed horizontally elongated members under said bottom member and, base plate and each provided with a portionslidably received in said groove, said crossed members having openings. through. which said bearing stud passes, saw guides rising from .the ends of said crossed members, and meansyror holding these members in angularly adjusted positions. To indicate when either otthe members Y In testimony whereof; :I have hereunto affixed ily-signature.

sesame FRANKLIN.

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