US738930A - Miter-box. - Google Patents

Description

- PATENTED SEPT. 15,1903.

M. NIGHOLLS. MITER Box. APPLICATION-TILED LUG. 30. 1902.

2 SHEETS-SHEET 1. 7

10 MODEL.

No.738,930. I PATENTE-D SBPT.15,1903.- M. NIGHOLLS.

MITER BOX. APPLIVO'ATION 1-11.11 we. so. 1902.

. 2 SHEETS-SHEET 2.

.110 monnn.

iatented September 15, 1903. I

UNIT D STATES PATENT OFFICE.

MOSES NIOHOLIQS, OF OTTUMWA, IOWA, ASSIGNOR TO MARTIN HARDSOCG AND EMMET A. WORK, OF OTTUMWA, IOWA.

MlTER-BOX.

SPECIFICATION forming part of Letters Patent N 0. 738,930, dated September 15, 1903. Application filed August 30,1902. sealant. 121.630. (Nomodeld To L whom it ay con/067'"! A, at the bottom of which is arranged a bear- Beit known that I, MosEs NI'GHOLLS, a citiing A the purpose of which will appear herezenof theUnited States, residingat Ottumwa, inafter. The front face of the plate A is in the county of Wapello and Stateof Iowa, grooved vertically, as shown at A in order 55 have invented a new and useful Miter-Box, to afford a firm grip upon the material to be of which the following is a specificatiom cut, and the rear face is preferably con- This invention is an improved construction structed with reinforcement-ribs A to give of miter-box, the object being to provide a dethe side plates the proper strength. The plate vice which can be quickly and easily setup is preferably constructed with end extensions 6a to for use'and one which can be quickly and ac- A which are in the same vertical plane as curately adjusted so as to cut material at any the plate A,.and extending forwardly and desired angle. horizontally from the ends of these extensions Another object of the invention is to proare the arms A, preferably integral with the vide a miterbox in connection with which said back plate and extensions, the forward 63 either an ordinary saw or a miter-saw can be ends of said arms being turned upwardly, as sedshown at A and carrying the bind-screws A Another object is to provide a miter-box by means of whichthe miter-box is clamped which can be quickly and easily taken apart to a piece of material which virtually constiwhen not in use and packed away, so as to tutes the bottom of the miter-box, said piece 70 2o occupy very little space. of material resting upon the forwardly-ex- With these and certain other objects in view, tending arms A and clamped against the as will appear hereinafter, the inventionconplate A and its extensions A by means of the sists in the various devices of construction, said screws A A graduated segment B concombination, and arrangement, all of which nects the forwardly-projecting arms'A, said 75 will be fully described and then pointed out arms being formed with lugs A to which the in the claims. reduced ends of the segment B are secured.

In the drawings forming a part of this speci- The graduations are marked upon the upper fication, Figure l'is aperspective view of a face of the segment B, as indicated at B, miter-box constructed in accordance with my. andthese graduations may be arranged ac- 8o 0 invention and showing the practical applicacording to any desired scale, so that, if detion thereof. Fig. 2 is a side view of the sired,fractional portions of angles maybe cut. same. Fig. 3 is a detail view showing the Apost 0, reduced at its lower end,as'shown manner of connecting the graduated segment at C is journaled in the bearing A said to the forwardly-projecting arms. Fig. 4 is post'being tubular in form and slotted ver- 8 3 5 a top plan view. Fig.' 5 is a detail perspectically, as shown at O, and occupies the centive view of the back plate and one of the tralvertical opening A, produced in the back forwardly-projectingarms and a portion of plate A. The hand-lever D, bifurcated at the graduated segment. Fig. 6 is a detail its rear end, as shown at D, is securelyfasperspective view of one of the guides. Fig. tened upon the downwardly-projecting end 0 4o 7 is a detail perspective view of the detach- C of the post C, a clamping-screw D bindable frame adapted for use in connection with ing the bifurcated end of said lever securely an ordinary handsaw. Fig.8is aperspective upon said depending end. This hand-lever view of the rear end of a lever, illustrating D projects forwardly beyond the curved segthe manner of connecting it to the lower end ment and "rests upon the upper face thereof, 5

of the tubular post. Fig. 9 is a cross-section as most clearly shown in Figs. 1, 2, and 4, at left end .of Fig. 1. and by moving the said hand-lever to either In the practical embodiment of my inventhe right or left the tubular post O is turned tion I employ a back plate A, which may be correspondingly to the right or the left. The constructed from any desirable material and hand-lever D carries a tubular post E, simi- [CO made of any size and shape desired. This lar in construction to the tubularpost O back plate A has a central vertical openingv that is, it is slotted vertically, as shown at have devised for use in connection with an ordinary handsaw and which will hereinafter be fully described. Thus it will be seen that when the saw is arranged in the guides and the said guides properly set in the tubular slotted posts the saw can be quickly and easily adjusted to the desired angle by shifting the hand-lever along the graduated segment. In order to lock the said hand-lever in its adjusted position, I employ a lockingcatch H, which is pivoted in a depending bracket H, extending downwardly from the hand-lever D, and the said catch has an eccentric head H which binds against the under side of the segment B when the forward end 11 of the said catch is thrown down, and in order to normally hold the said forward end in its downwardly-projecting position I employ a spiral spring H, which bears upon the under side of the lever D and upon the upper side of the catch and surrounds the guide post H carried by the said latch. When it is desired to disengage the lockinghead from the segment, it is only necessary to press upwardly upon the end H The hand-lever can then be moved to the right or left until the proper adjustment has been secured, and then by releasing the catch the spring will immediately bind the said head to the segment and lock the catch in its proper position.

As before stated, the guides F and G are constructed to receive an ordinary miter-saw; but in case should it be desired to use an ordinary handsawin connection with my improved construction of miter-box I have devised a detachable frame which can be connected to the blade or body portion of an or-,

dinary handsaw and which will then enable the said saw to be used in connection with my miter-box and will secure as accurate an adjustment and operation as a miter-saw, having the back rigidly and permanently connected to the said blade. This detachable frame I havecshown-applied to the saw in Fig. 1, and in Fig. 7 I have shown the said frame detached, and while various constructions might be employed I prefer to construct the said frame I and the bar I, to the rearward end of which are connected the parallel members 1 binding-screws being arranged at the upper and lower ends of said parallel members. The forward end of the bar I is curved downwardly, as shown, and connected thereto are the parallel members 1*, said members being provided with clamping-screws, so that the plate of the saw can be securely clamped between the parallel members I and I and the bar I will then constitute the back of the saw-frame, which will occupy the openings F and G of the guides. It will thus be seen that the saw K, used in connection with myrhiter-box, can be either a miter-saw 01' an ordinary handsaw.

L indicates a bracket carrying an eccentric lever L, by means of which a block can be clamped upon the strip of material constituting the bottom of the miter-box, which block will serve as a stop and gage to limit the length of the material to be cut.

M designates an extension-back, formed of a yoke crossing beneath the removable base and extending upward at the front and rear of said base. The rear arm of the yoke M is almost as high as the back A and serves as a back-support for the portion of material being out which extends materially beyond the back A, and the front arm of the yoke is provided with a set-screw M for binding engagement with the front margin of the base. The yoke may be movedlongitudinally of and fixed in any desired position on the removable base. It will be understood, however, that these appliances are not absolutely necessary for the proper manipulation of the improved construction of miter-box.

In order to use the box, it is only necessary to clamp the same to a piece of material, place the saw in the guides, and then arrange the guides in their tubular posts. By moving the hand-lever the saw can be adjusted to the proper angle. When it is desired to pack the miter-box away, it is only necessary to remove the saw, unclamp the box from the board or piece of material, and disconnect the hand-lever from the depending end post 0.

It will thus be seen that I provide an exceedingly simple and efiicient construction of miter-box capable of carrying out all the objects hereinbefore mentioned.

Having thus fully described my invention, 7

what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. A miter-box comprising a back plate, the graduated segment, clamping means arranged for engagement with a removable base at the ends of said segment, a hand-lever movable upon the segment and the sawguides carried by the said hand-lever.

2. A miter-box comprisingaback plat-e having forwardly projecting arms carrying clamps shaped for engagement with a removable base, a segment connecting said arms, the hand-lever, tubular posts and the guides carried therein.

3. A miter-box com prisinga back plate having forwardly projecting arms, clamping means shaped for engagement with a removable base, parts of said clamping means on the back plate and parts on the extremities of the projecting arms, a segment connecting the said arms, the hand-lever, the tubular slotted posts, the slotted guides, and means for locking the said hand-lever.

4. In a miter-box, the combination of a back plate having forwardly-projecting arms, carrying clamps shaped for engagement with a removable base, a segment connecting said arms, a hand-lever, posts and guides therein carried by said hand-lever and extensionbacks removably, replaceably and adj ustably mounted on said removable base, whereby the back-support of material being sawed in said miter-box may be extended laterally of the back plate. I

5. In a miter-box, a saw-guide attachment, comprising the base, formed with a vertical back plate, a segmental graduated front plate and end bars connecting said plates, clamps on said base and arranged to engage and support a block, which block forms the bottom of the box, an arm pivoted at one end on the rear portion of said base and crossing the segmental graduated plate, and saw-carrying posts carried by said pivoted arm.

6. In a miter-box, a back plate having forwardly projecting arms, carrying clamps shaped for engagement with a removable base, a segment connecting said arms, ahandlever pivoted at one end on the rear portion of said back plate and crossing said segment, tubular posts carried by said handlever, guides carried by said posts, a fulcrum projecting from said hand-lever to a point below said segment, a latch pivoted on said fulcrum, and having a curved end portion eccentric to its pivot and arranged 'for engagement with the lower face of said segment and a spring interposed between and impinging the extremities of said hand-lever and latch.

MOSES NIOHOLLS.

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