US593751A

US593751A - Miter-box

Info

Publication number: US593751A
Authority: US
Publication date: 1897-11-16
Anticipated expiration: 1914-11-16

Description

`(Nol Model.)

ZISheetS-Sheet 1, J. T. MILLER 8a J. A. DENNEY.

MITBR BOX.

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J. T. MILLER 8v J. A. DENNBY.

. MITBR BOX.

No. 593,751. Patented Nov. 16.1897.

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NiTED STATES I PATENT EEICE.

JOHN T. MILLER AND JOSEPH A. DENNEY, OE MOUNT AYE, iOwA.

IVIITER-BOX.

SPECIFICATION forming part'of Letters Patent No. 593,7 51 dated November 16, 1897. i Application filed July 26, 1897. Serial No. 646,003. (No model.)

To @ZZ whom it may concern:

Be it known that we, JOHN T. MILLER and JOSEPH A. DENNEY, citizens of the United States, residing at Mount Ayr, in the county of Ringgold and State of Iowa, have invented a new and useful Miter-Box, of which the following is a specification.

This invention relates to miterboxes,its object being to provide a box of this character having saw supporting and guiding mechanism which can be easily and quickly adjusted to enable the saw to'cut at any desired( angle, either vertically or obliquely.

' With this object in view the invention consists of the several details of construction and combination of parts, as will be hereinafter fully described, and particularly pointed out in the claims.

In the drawings, Figure 1 is a perspective view of a miter-box made in accordance with our i-nvention. Fig. 2 is a rear elevation. Fig. 3 is a vertical'transverse section on the line a a of Fig. 2. Fig. 4 is a sectional detail on the line b b of Fig. 3. Fig. 5 is a sectional detail on the line c c of Fig. 3. Fig. 6 is a plan view'of a detached detail. Fig. 7 is a perspective View of a detached detail.

Similar reference-numerals indicate similar parts in the several figures.

1 indicates the bed-plate, which will preferably beV of hard wood, although, if desired, it may be of metal, and the 'middle portion of the bed-plate projects forwardly in the form of a semicircle, as indicated'by 2.

3 indicates the supporting-legs, which may be secured to the ends of the bed-platein any suitable manner and are'adapted to be secured to any suitable base-support. The back is formed of two sections, (indicated b y 4,) which are spaced apart at their inner ends and secured to the rear edge of the bed-plate in any suitable manner. The inner portions of these sections 4 are inclined downward and toward each other at an angle of about thirty degrees, as indicated at 5.

6 indicates a metal strip curved to fit on the edge of the semicircular portion 2 of the bed plate and provided at each end with straight portions 7, adapted to be secured to the straight front edges of the bed-plate by lscrews 8 or other similar fastening devices.

This strip is provided with a slot 9, extending the entire length of its curved portion.

10 indicates a bar, its main portion being bent to semicircular form to be concentric with the semicircular portion of the bed-plate, and this bar is provided at each end with a straight portion 11, adapted to be secured to the front edge of the bed-plate by screws 12 or similar fastening devices. The curved portion of this bar is provided with a narrow slot 13 in substantially the same horizontal plane as the slot 9 in the metal strip 6. Itis alsov provided with a wider slot, (indicated by 14,) which extends parallel to the slot 13.

15 and 16 indicate, respectively, the heads of two similar T-shape`d castings, which are secured together and to the bed-plate at its rear edge midway the length thereof by

bolts

17, and 18 and 19 indicate, respectively, the stems of these castings. These stems project beyond the back of the miter-box and are rounded on their outer surfaces and screwthreaded at their ends, as indicated at 2O. The upper face of the stem 18 is flattened, as indicated at 2l. The opposing faces of the

heads

15 and 16 are cored out to form a V- shaped recess 22, and the opposing faces of the stems 18 and 19 are each provided with a semiglobular recess to form a socket 23, and from which the V-shaped recess fiares outwardly.

24s indicates a semicircular metal plate provided with a hub 25 to fit over the stems 18 and 19 to turn thereon. The lower portion of this plate is provided with a straight edge, (indicated by 26,) and the other part of its edge is semicircular in form,the circle being struck from the axial center of the hub. A flange 28 projects rearwardly from this plate entirely around it7 and a slot 29 extendsfrom a point midway the semicircular portion of the plate to the hub. Guides 30 are formed on the opposing sides of the slot 29 and project upwardly beyond the edge of the plate. The

opposing faces of these guides are con/caved,

as indicated at 31, and the edges thereof are beveled in opposite directions to present bearing-openings at each side of the guides.

33 indicates the rear saw-guide, which consists of a pin to fit in between the concaved IOO faces of the guides to turn therein and also 4 to have free vertical movement. The upper end of this pin is shouldered and enlarged, as indicated at 34, and a slot extends transversely through the pin for nearly its entire length, the upper end of said slotbeing enlarged, as indicated at 36, in order that an ordinary tenen-saw 37 maybe inserted in the slot to work freely therein.

38 indicates a collar to fit over the stems 18 and 19 outside of the hub 25, and to the upper edge of this collar a bar 39 is secured to project rearwardly therefrom and to each side thereof, and this bar is adapted to seat upon the flattened portion 21 of the stem 18. The upper portion of the hub 25 is cut away in order to permit the plate 24 to be turned on the stems 18 and 19 to the extent of about one-half of a revolution.

40 indicates wedges pivoted at their buttends on the opposite ends of the bar 39, with their thin ends opposing each other. The object of these wedges will be referred to hereinafter.

41 indicates a cap-nut to fit on the threaded ends of the stems 18 and 19 to hold the collar 38 and plate 24 in place.

42 indicates a rod, the rear end of which is reduced, as indicated at 43, and provided with a ball-shaped head 44 to seat in the socket 23 in the stems 18 and 19, and the reduced end portion 43 will play in the V- shaped recess 22, formed in the

heads

15 and 16 of the castings. A head 45 is formed on the front end of the rod 42, the front end of which extends in close proximity to the inner face of the bar 10, and this head is provided with a vertical slot 46, extending through it, the slot being ilared at both ends, as indicated at 47. A threaded stem 48 extends from the head through theslot 14 in the bar 10, and a plate 49 is itted ovcrthis stem and provided with lugs 50 on its rear face, which project into the slot 14. A thumb-nut 51 is fitted on the end of the threaded stem to hold the plate 49 in position, and the upper end of the plate is provided with a pointer 52.

53 indicates a tubular standard, from the lower end of which a ilat bar 54 extends through the slot 46 and is pivoted therein on a pin or screw 54. The lower end of the bar 54 is pivoted on a pin or screw 55 between spaced cars 56 on the front end of a rod 57. The rear end of this rod is flattened, as indicated at 57 and the flattened end is pivoted in a slot formed in a block 58 to permit the rod to swing in a horizontal plane, and the block 58 is pivoted between spaced ears 59 of the slot G1, and its en ds are flattened and widened, as indicated at 65, and these ends are seated in the slots 9 and 13, respectively. Shoulders 66 are formed on the bar 64 to engage the opposing faces of the strip 6 and bar 10 to prevent longitudinal movement of the bar. A disk 67 is fitted within the standard and is provided with a loop 68, secured to its lower face, through which the bar 64 passes, with its flat face engaging the under face of the disk. The disk can therefore slide longitudinally of the bar, but is incapable of turning on it, and the disk will therefore always lic in a horizontal position.

69 indicates the front saw-guide, which is similar to the rearsaw-guide 33, and is adapted to lit wit-hin the tubular standard 53 and be supported on the disk 67 when in its lowest position.

The inner ends of the back sections 4 extend close up to the flange 28 of the plate 24 and are curved to correspond with the curvature of said flange. To the inner end of the `right-hand section a metal plate 70 is secured in any suitable manner and provided with a threaded opening 71, in which the threaded end of a set-screw 72 works. This set-screw extends the entire length of the right-hand section 4, the latter being provided with a suitable opening for its passage, and is provided at its outer end with athuinb-piece 73, by means of which it may be turned, and the function of this set-screw is to lock the plate 24 in any suitable position when required. A pointer 74 is secured tothe right-han d section 4, and that part of a semieircular portion of the flange 28 which facesthis pointer is provided with a suitable scale 75 to indicate the degrees of a portion of a circle in order that the saw can be set to cut obliquely at any desired angle which may be indicated by the pointer 74 andscale 75.

A scale 76 is formed on the upper edge of the bar 10 to indicate degrees of a portion of a circle, in order that the saw can be set to cutat any desired angle in a vertical plane.

Then it is desired to use the saw to cut in a vertical plane, the plate 24 will be locked against rotation by the set-screw 72 to hold the saw-guide 33 in a vertical position, and vthe saw can then be turned to cut at any de- 'sired angle, since the

rods

42 and 57 are free to swing in a horizontal plane, and the angle Adesired may be accurately designated by the pointer 52 and the scale 76. The saw can be locked in position by tightening the thumbnut 51. Then it is desired to make an oblique cut, the set-screw 72 will be loosened in order t'o permit the plate 24 to turn on the ,stems 18 and 19 in either direction, and the angle of Obliquity can be accurately ascer- `tained by means of the pointer 74 and the `-scale 75. When the saw-guides are turned "from a vertical position, it is necessary that they shall be moved vertically in the guides 30 and the tubular standard 53, respectively, in order to prevent injury to the teeth of the IOO 'be thrown out of vertical alinement, and

when the saw is swung horizontally in either direction the bar 54 will be moved at its lower end either toward or away from the rear of the box, according to the direction in which the saw is moved horizontally, and the standard 53 and saw-guide 69 will move in the opposite direction at their upper ends, and it is to permit this movement that the standard 53 is pivotally connected to the rods 4t2 and 57 andthat the disk 67 is free to move longitudinally of the bar 64.

It will be understoodV that changes in the form, proportion, and the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of this invention.

Having thus described the invention, -what we claim isl l. In a miter-box, the combination with the bed-plate and a casting secured to the bottom thereof near its rear edge, said casting having a stem projecting beyond the rear edge, of a plate mounted on the said stem to turn thereon, a saw-guide supported in said plate to turn axially therein, a rod having a hinged connection to said casting and extending to the front of the miter-b'ox, means to slidably support the front end of said rod, and asawguide supported by said rod substantially as described.

2. In a miter-box, the combination with the bed-plate, of a semicircular -slotted guideplate secured to the front edge of the bedplate, a casting secured to the bottom of the bed-plate near its rear edge and having a rounded stem'projecting beyond thebed` plate, a plate pivoted on the said stem, a sawguidesupported by the plate to turn axially therein,a,rod having a hinged connection at its rear end to said casting and being supported at its front end in the slot of the said guideplate, a tubular standard connected to said ro'd in front of the bed-plate, and a saw-guide supported in said standard substantially as described.

3. In a miter-box, the combination with the bed-plate, of a semicircular slotted guideplate secured to the front edge of the bedplate, a casting secured to the bottom of the bed-plate near its rear edge and having a socket and an outwardly-arin g recess formed therein, and a rounded stem projecting beyond the bed-plate, a semicircular plate pivoted on the said stem, a saw-guide supported by the plate to turn axially, a rod extending standard carried by said rod in front of the bed-plate, and a saw-guide supported in said standard to move longitudinally therein, substantially as described.

4. In a miter-box, the combination with the bed-plate and a casting secured to the bottom of the plate near its rear edge and having a rounded stem projecting beyond said edge, a semicircular plate mounted on said stem to turn thereon, and having a-scale formed on its periphery, a fixed pointer to coperate with the scale, means to lock said plate against turning, a saw-guide supported in said plate to have axial turning, a rod hinged at its rear end to said casting, means to support the front end of said rod in advance of the bed-plate, and a saw-guide supported by said rod, substantially as described. i

5. In a miter-box, the combination with the bed-plate and a casting secured to the bottom thereof near the rear edge, said casting having a stem projecting beyond said rear edge,

said stem having aiiattened portion on its upper face, a semicircular plate mounted on said stem to turn thereon, spaced guides carried by said plate, a collar supported on said stem adjacent to the plate, a bar rigidly connected to said collar to engage the iiattened portion of said stem, a saw-guide supported between said spaced guides to move vertically and its lower end engaging said bar, and wedges carried by said bar on opposite sides of the saw-guide with their thin faces opposing each other, substantially as described.

6. In a miter-box, a rod extending below the bed-plate and supported at its ends to turn axially, a slotted tubular standard secured to said rodnear its front end and extending above the bed-plate, a bar extending through the slot in the tubular standard and supported at its ends against axial movement, a disk within the tubular standard connected to said bar to move longitudinally thereon and locked against rotary movement thereon, and a sawguide loosely tted in the said standard and supported `at its lower end on said disk, substantially as described.

7 In a miter-box, the combination with the bed-plate, -of spaced rguides at the rear edge of the bed-plate and a tubular standard in front of the bed-plate, said guides and standard being supported to swing laterally in either direction from a vertical position, sawguides supported by the spaced guides and the standard, respectively, to have vertical movement therein, and devices to engage the lower ends of said saw-guides and move them within their supports when the latter are swung laterally from a Vertical position, substantially as described.

8. In a miter-box, the combination with the IOO IIO

jeeting beyond said edge, of a semieireular plate mounted to turn on said stein, said plate having a straight edge on its lower portion, spaced guides Carried by said plate, a slotted seniieirenlar bar seeured to the front edge of the bed-plate, a rod connected at its rear end to said casting to turn axially therein and also to swing horizontally, said bar having a Yertieal transverse slot near its front end, a bracket having spaced ears secured to the straight edge of the said seniieireular plate, a seeond rod extending parallel to the rstnamed rod and piroted at its rear end between said spaced ears to swingrertieally and horizontally, and having spaeed ears at its front