US923268A - Miter-box. - Google Patents

Description

J. M. JAGOBSEN.

MITER BOX.

.APPLIGATION FILED AUG. 31. 1908.

923,268; Patented June 1, 1909.

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MITER BOX.

APPLIGAIION TILED AUG. 31, 1908.

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V MITER BOX.

APPLICATION rI-LEp AUG. 31. 1908. 923,268.

Patented June 1, 1909.

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JAMES M. JAOOBSEN, OF KANSAS CITY, KANSAS.

METER-BOX.

Specification of Letters Patent.

Application filed August 31, 1908.

Patented June 1, 1909.

Serial No. 450,927.

To all whom it may concern:

Be it known that I, JAMEs M. JAooBsnN, a citizen of the United States, residing at Kansas City, in the county of l/Vyandotte and State of Kansas, have invented certain new and useful Improvements in Miter-Boxes, of which the following is a specification.

This invention relates to miter boxes and has for its object to produce a device of this character capable of adjustment to determine saw cuts at any angle or at two different angles simultaneously.

A further object is to produce a miter box adapted to accommodate pieces of wood of varying lengths.

A still further object is to produce a miter box embodying a reliable saw guide adjustable downward to continue its guiding function for the saw until the latter completes its out.

Another object is to produce a miter box of simple, strong, durable and comparatively inexpensive construction.

With these general objects in view, the invention consists in certain novel and peculiar features of construction and organization as hereinafter described and claimed; and in order that it may be fully understood reference is to be had to the accompanying drawings, in which:

Figure 1 is a plan view of a miter box embodying my invention, with one end. broken away. Fig. 2 is a front view of the same. Fig. 3 is a central vertical section taken on the line III-III of Fig. 2. Fig. 4 is a central vertical section taken on the line lV-lV of Fig. 1. Fig. 5 is a horizontal section taken on the line V-V of Fig. 2. Fig. 6 is a vertical section taken on the line VI of Fig. 2. Fig. 7 is a detail perspective view of a part of the bracket carried by the support. Fig. 8 is a rear view of a part of the support. Fig. 9, is a rear view of an angle bracket and a horizontally-pivoted bracket pivoted thereby. Fig. 10, is an end view of the miter box. Fig. 11, is a rear view of a lever-carrying frame forming part of the miter box. Fig. 12, is an enlarged vertical section taken on the line XII-XII of Fig. 9.

In the said drawings 1 indicates a horizontal support such as a piece of board of suitable length mounted upon legs 2, and channeled out at its lower front corner as at 3. A bracket secured to said support is constructed as follows: 4 indicates a central or body portion fitting against the under side of the support about centrally of its length. 5 and 6 are upper and lower arms projecting laterally from the body portion with the fornier fitting against the under side of the support, said arms providing between them longitudinal slots 7. 8 is a flange projecting upward from the rear margin of the body portion and provided at its front side with a boss 9 and at its rear side with an upwardly projecting car 10 equipped with graduation marks 11 on its face radiating with respect to a threaded opening 12 extending through the ear, the flange and the boss, the upper portion of the ear being rounded concentrically of such opening, as shown in Fig. 2. To interlock the bracket solidly with the support the latter is recessed in its rear edge as at 13 to receive the said flange and boss, and is also recessed in its rear edge to receive a pair of ears 14 (one only appearing) projecting upward from arms 5 near the outer ends of the same and extending through said ears 14 and into the support are clamping screws 15, standards 16 being mounted on said screws and clamped thereby firmly against the rear edge of the support and ears 14.

17 indicates one of a pair of standards fitting against the rear edge of the support and provided with vertical slots, 18 to receive internal threaded nuts 19, said nuts being provided with flanges 20 to bear against the rear sides of said standards and with rectangular extensions 21 fitting slidingly in slots 7.

22 indicates clamping bolts projecting through slots 7 and engaging said nuts and provided with enlargements 23 to clamp the interposed washers 24 firmly against arms 5 and 6, the front ends of the screw bolts being provided with winged heads 25 by which they may be turned, it being noticed that the winged heads are disposed vertically below recess 3 and can therefore be conveniently gripped and turned although located close to the bottom of the support.

26 indicates a segment-shaped flange depending from the rear edge of body portion 4 of the bracket and provided with a slot 27 extending concentrically with threaded opening 12, the lower edge of the flange also extending concentrically with said opening and having a series of notches 28.

29 is a bolt engaging opening 12 and provided with a neck 80 of greater diameter than its threaded portion and of smaller diameter than its head and pivoted on the neck is a frame 31, recessed near its lower end as at 32 to accommodate the ear 10 and provided on its face with a radial mark 33 to register with any of the radiating marks 11' of said ear, as shown clearly in Fig. 2.

34 is a clamping-bolt having its threaded portion of reduced diameter and extending slidingly through slot 27 and engaging a threaded opening 35 in the lower end of frame 31, said bolt being preferably provided at its front end with a winged head 36 by whichit may be conveniently turned for the purpose of clamping frame 31 in a vertical position or at an angle to the vertical. The frame 31 is provided with a notch 37 in its lower end and above the pivot bolt 30, is equipped with a rearwardly projecting car 38 to receive a pivot pin or bolt 39, which also extends through one or a pair of ears 4O projecting forward from a lever 41 provided at its lower end with a forwardly projecting tooth 42 occupying notch 37 and adapted to be held in engagement with any of the notches 28 of flange 26, by the pressure of a spring 43 secured to the lever at onev end and pressing forwardly against the rear side of frame 31, as shown clearly in Fig, 3. The frame 31 is provided with a longitudinal slot 44 above its pivotal point and fitting in said slot is the rearwardly projecting rib 45 of an angle bracket 46', and securing said angle bracket at the desired point of vertical adjustment in said slot is a headed bolt 47, said bolt extending through the upwardly projecting arm of the angle bracket, said slot and a washer 47 bearing against the rear side of frame 31, a clam ing nut 48 engaging the rear end of the olt for the purpose of clamping the washer and said angle bracket firmly against said frame.

49 indicates a vertical post provided with a reduced threaded end 50 engaging an opening 51 in the front end of the horizontal arm of said bracket and overlying and spaced from said threaded portion is an enlargement 52 of said post.

A bracket pivoted for horizontal movement on said post below its enlargement 52 and resting on the horizontal arm of angle bracket 46, is constructed as follows: 53 is a pair of similar angle arms extending at right angles to each other and having their horizontal portions connected by a segmentshaped web 54 recessed at its upper side as at 55 to receive the head of bolt 47, the nonreduced portion of the web adjacent to said recess 55 being provided with radial marks 56 to register with a projection 57 on the front end of bolt 47, which bolt is equipped with a clamping-screw 58 for engagement with the underlying reduced portion of the web, as shown most clearly in Fig. 3. front end of the angle bracket pivoted on bolt The 49, is truncated as at 59 and at the junction of said truncated portion and the arms 53 it is formed with a pair of vertical posts 60 provided with vertical grooves 61 in their faces for the reception of the rearwardly projecting flanges 62 of a V-shaped slide frame 63, the faces of said posts inward of arms 53 being recessed as at 64 in order that the outer or front face of the v shaped frame 63 shall be flush with the corresponding faces of the arms 53 as shown clearly in Fig. 5, and in order to hold the V-shaped frame 63 in the relation described it is provided with a pair of diverging arms 65 fitting slidingly on a pair of vertical posts 66 erected upon arms 53, said posts being reduced at their upper ends to provide shoulders for the support of a cross bar 67 which also fits upon the post 49, nuts 68 engaging the upper ends of said posts 66 to secure bar 67 reliably in position.

69 is a handle secured to the upper end of the V-shaped frame 63 and provided with diverging arms 70 through which bolts 71 extend to secure a pair of guide plates 72 in fixed relation to said frame 63, the arms of the handle serving to space said plate 72 from said frame a distance about equal to the thickness of a saw blade, and in order to facilitate the insertion of the latter between said V-shaped frame and said guide plates 72, the front edges of the latter are bent or flared outward as at 73. To prevent said plates 72 springing outward at their lower ends too far from said frame 63,1 provide a pair of horizontal guide plates 74 which par allel the vertical or depending parts of arms 53 and are provided at their front ends with tongues 75 which overlap plates 72, and in order to facilitate the insertion of the saw blade between arms 53 and plates 74, the upper edges of the latter are flared outward as at 76.

To support plates 74 in position, I employ a pair of hangers 77 which are secured at their lower ends to said plates and have their body portions disposed outwardly of the ver tical' plane of the spaces between plate 74 and arms 53 and the V-shaped frame 63 and plates 7 2, the upper ends of said hangers terminating in inwardly projecting arms 78 fitting upon posts 66 between the cross plate 57 and the clamping nuts 68.

Assuming that it is desired to cut a piece of wood at an angle of forty-five degrees, it is placed upon the support and against the frame 31 and the standards 17 and also against the standards 16 if of sufficient length, it being understood of course, that the standards 17 must be shifted from the position shown in Fig. 1 to a position out of the plane of the space between arms 53 and guide plates 74 so as not to stand in the way of the saw, it being also understood that the angle bracket 46 is adjusted vertically so as to be disposed as near the top of the piece of wood as possible and then clamped firmly in )osition by clamping bolt 47. The pivoted bracket is then adjusted with its central graduating mark 56 in line or register with the projection 57 of bolt 47 A saw blade is then slipped between the proper side of the V-shaped frame 63 and the paralleling guide plate 72 and the alined space between one of the arms 53 and one of the plates 74:. It is then pressed downwardly onto the piece of wood and reciprocated back and forth to cut the wood at an angle of forty-five degrees, and to insure a direct vertical cut and prevent the accidental disengagement of the blade from the guide, the operator may before beginning the sawing operation, force the latter, viz. the slide frame 63 and its plates 72 downward so that said frame and plates shall steady the blade for nearly its full width. If it be desired to cut a piece of wood at a greater or a lesser angle than fortyflve degrees the pivoted bracket mounted on post 49 may be adjusted to the proper angle and then clamped in such position so as to act as a guide for the saw in the cutting operation. If it be desired to cut a piece of wood at right angles to its length, the said pivoted bracket can be adjusted until the desired arm 53 extends atright angles to the length of the support. If it be desired to cut a piece of wood at right angles to its length but in a plane at an angle to the vertical, the pivoted bracket will be left in the position last referred to and the upper end of the lever pressed toward frame 31 so as to withdraw tooth e2 from engagement with the notch 28 vertically below pivot bolt 30. While the lever is thus held the frame 81 can be swung pivotally to the ri ht or to the left and when it has been adjusted to the proper angle the lever is released to permit spring 43 to rock it and cause its tooth to engage the registering notch 28 of flange 26. If desired the piece of wood can be cut at an angle to its length and also at an angle to the vertical by the proper adjustment of the pivoted bracket carried by bracket 46 and of the swing frame 31, it being noted in this connection that if the block is a short one, that is, of only suflicient length to find a bearing against frame 31 and the'standards 17 the latter can likewise be pivotally adjusted to avoid occupying the path of the saw blade. The same adjustment of the standard 17 may be made where a short block is to be cut vertically but at an angle to its length. Standards 16 ordinarily occupy vertical positions, being pivotally mounted so as to be capable of being folded against the rear side of the support when not in use, as there is never any necessity for disposing said standards at an angle when the miter box is in use.

From the above description it will be aparent that l have produced a miter box e1nliodying the desirable features enumerated in the statement of the object of the invention, and that the latter is susceptible of modification in various particulars without departing from the principle of construction involved.

Having thus described the invention what I claim as new and desire to secure by Letters Patent, is

1. A miter box, comprising a support, a bracket secured thereto and provided with a boss having a threaded opening, a slot and a series of notches extending concentrically of the threaded opening, a pivot bolt engaging said threaded opening, a frame pivoted on said bolt and provided with an opening registering with the slot of the bracket, a lever pivoted to said frame for operation at right angles to the operation of the latter and provided with a tooth at its lower end to engage either of the notches of the bracket, a spring bearing against the frame and lever to hold the toothed end of the latter in engagement with one of said notches, a clamping bolt underlying the support and extending through said slot and the opening of said frame and provided with an enlargement to bear against the bracket, and a clamping nut engaging the rear end of said bolt and bearing against the corresponding side of said frame.

2. A miter box, comprising a support, a bracket secured thereto and provided with a slot extending parallel with the support, a frame pivoted to the bracket and capable of swinging in a plane paralleling said slot, means to secure said frame at the desired point of adjustment, a bracket movable with said frame and embodying arms extending at right angles to each other, a \i-shaped frame secured to the apex end of the last-named bracket, a pair of plates substantially paralleling the sides of said V-shaped frame and supported at their upper ends from the cor responding end of the \!shaped frame, a pair of plates adjacent to and substantially paralleling the front faces of the arms of the lastnamed bracket, and means for supporting said last-named plates.

3. A miter box, comprising a support, a

bracket secured thereto and provided with a slot extending parallel with the support, a frame pivoted to the bracket and capable of swinging in. a plane paralleling said slot, means to secure said frame at the desired point of adjustment, a bracket movable with jecting tongues overlapping the front faces of the plates paralleling the V-shaped frame, a pair of posts projecting upward from the lastnamed bracket, and a pair of hangers secured at their upper ends to said posts and at their lower ends to the tongue-equipped plates and disposed at all points except at their upper ends forward of said tongue-equipped plates.

4. A miter box, comprising a suitable sup port, a frame secured to and projecting upward from said support, a bracket movable with said frame and embodying a pair of arms extending at right angles to each other, a Vshaped frame paralleling the first-named frame and carried by and at the front end of said bracket, a pair of posts projecting upward from said bracket, a pair of plates disposed forward of and substantially paralleling the sides of the ti-shaped frame and supported at their upper ends from the upper end of the latter, a pair of hangers supported at their upper ends from said posts, and a pair of plates carried by and at the lower ends of said hangers and interposed between the same and the arms of said last-named bracket and provided with tongues overlapping the plates carried by the \!shaped frame.

5. A miter box, comprising a suitable support, a frame secured to and projecting upward from said support, a bracket movable with said frame and embodying a pair ofarms extending at right angles to each other and equipped with posts near their front faces and with a second pair of posts having vertical grooves, a V-shaped frame provided with a pair of flanges fitting slidingly in the grooves of the said last-named posts, an angle bar secured to the rear side of said V-shaped frame and fitting slidingly on the said first pair of posts, plates forward of and substantially paralleling the arms of said V- shaped frame and supported at their upper ends from the upper end of said arms, a pair of hangers secured at their upper ends to said second pair of posts, and a pair of plates substantially paralleling and disposed forward of the arms of said last-named bracket and secured to the inner or rear sides of said hangers and provided with tongues overlapping the front sides of the plates carried by the V-shaped frame.

6. A miter box, comprising a suitable support, a frame carried thereby, a bracket vertically adjustable on said frame, a bracket pivoted on the first-named bracket and embodying a pair of arms extending at right angles to each other, means to clamp the pivoted bracket at the desired point in its pivotal adjustment, a ii-shaped frame slidably carried by said pivoted bracket for movement parallel with the first-named frame, a pair of hangers suitably supported at their upper ends in fixed relation to said pivoted bracket, a pair of plates secured to the lower ends of said hangers and disposed outward of and substantially parallel with the arms of said pivoted bracket and provided with guide-tongues at their adjacent ends, and a pair of plates paralleling and disposed outward of the arms of the V- shaped frame and secured at their upper ends rigidly to the upper end of the latter and held by said tongues against forward movement.

7. A miter box, comprising a suitable support, a frame carried thereby, a bracket vertically adjustable on said frame, a bracket pivoted on the first-named bracket and embodying a pair of arms extending at right angles to each other, means to clamp the pivoted bracket at the desired point in its pivotal adjustment, a V-shaped frame slidably carried by said pivoted bracket for movement parallel with the first-named frame, a pair of hangers suitably supported at their upper ends in fixed relation to said pivoted bracket, a pair of plates secured to the lower ends of said hangers and disposed outward of and substantially parallel with the arms of said pivoted bracket and provided with guide-tongues at their adjacent ends, a pair of plates disposed forward of and substantially parallel with the arms of said t -shaped frame and overlapped by said tongues, and a handle having arms interposed between the upper ends of said lastnamed plates and the arms of the V-shaped frame and secured rigidly to said plates and arms.

8. In a miter box, a suitable frame, a bracket vertically adjustable thereon, a pivot bolt projecting upward from said bracket, a bracket pivoted on said pivot bolt and embodying a pair of arms extending rearward at right angles to each other and a segmental web connecting said arms, a clamp bolt movable with the first-named bracket to engage said web and clamp the pivoted bracket at the desired point of adjustment, a pairof posts upon the pivoted bracket at opposite sides of said pivot-bolt, a brace bar connecting the upper ends of said posts with the pivot bolt, a pair of hangers secured at their upper ends on said posts and terminating at their lower ends outward of the arms of said pivoted bracket, a pair of plates secured to the lower ends of said hangers and inter posed between the same and said arms of the pivoted bracket and provided at their front ends with tongues, a V-shaped frame slidably mounted to move endwise on said pivoted bracket and its pair of posts and having its arms disposed at right angles to each other, with their outer sides flush with the corresponding sides of the arms of the pivoted bracket, and a pair of plates forward of and substantially paralleling the arms of the \l-shaped frame and flush with said tongue-equipped plates and overlapped at their front sides by the tongues of said plates.

9. In a miter box, an upright frame provided with a longitudinal slot, an angle bracket having its upright arm fitting against the front side of said frame and provided with an elongated rib engaging said slot, and its horizontal arm projecting forward from the lower end of the upright arm, a bolt extending through the upright arm and provided with a head bearing against said upright arm and provided at its front side with an indicating point, a clamping nut engaging the rear end of said bolt and the rear side of said frame, a clamping bolt extending downwardly through the head of said bolt, a pivot bolt extending upward from the said horizontal arm forward of and in the vertical plane of said clamping bolts, a bracket resting on said horizontal arm and pivoted on said pivot bolt and comprising a pair of arms extending divergently rearward at right angles to each other and a segmental web connecting said arms and underlying the head of the first-named clamping bolt and the clamping bolt engaging said head, and provided with indicating marks adapted to register one at a time with the indicating mark on the head of said clamping bolt, plates suitably supported forward of and substantially parallel with the arms of the pivoted bracket, a vertically adjustable V- shaped frame carried by the pivoted bracket, with its outer faces flush with the outer faces of the arms of said pivoted bracket, and a pair of plates forward of and substantially paralleling the outer faces of the ii-shaped bracket and movable therewith and occupying the vertical planes of the adjacent plates paralleling the outer faces of the arms of said pivoted bracket.

In testimony whereof I affix my signature, in the presence of two witnesses.

JAMES M. JAOOBSEN. Witnesses:

H. G. Ronenns, G. Y. THORPE.

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