US759647A - Miter-box. - Google Patents

Description

No. 759,647. PATENTED MAY 10, 1904. D- P. UPDEGRAFF. MITER BOX.

APPLICATION FILED 1mm 23, 1902. no 1101121.. 2 sums-sum 1.

No. 759,647. PATENTED MAY 10,1904. 1

1). F. UPDEGRAFF. MITER BOX.

APPLIOATIQN FILED DBO. 23, 1902 N0 MODEL.

2 SHEETS-SHEET 2.

Yl-fE uonms pzrcns co, PHOTOJJTHO, WASHINGTON, n. c.

UNITED STATES Patented May 10, 1904.

PATENT OEEIcE.

DANIEL FRANK UPDEGRAFF, OF YOUNG-WOOD, PENNSYLVANIA, ASSIG-NOR OF ONE-HALF TO WVILLIAM M. R. MYERS, OF GREENSBURU, PENNSYL- VANIA.

MlTER-BOX.

SPECIFICATION forming part of Letters Patent No. 759,647, dated May 10, 1904.

Application filed December 23, 1902. Serial No. 136,417. (No model.)

To all whom it may concern:

Be it known that I, DANIEL FRANK UrDE- GRAFF, a citizen of the United States, residing at Youngwood, in the county of I/Vestmoreland and State of Pennsylvania, have invented a new and useful Miter-Box, of which the fol lowing is a specification.

This invention relates to miter-boxes for cutting the ends of timbers, molding, and the like to suitable bevels for miter-joints.

One object is to provide a very simple structure that can be adjusted to cut a wide range of angles or bevels, said structure being applicable directly to the timber to be cut and capable of being easily and cheaply manufactured.

It is also the object to provide an extensible and contractible saw-guide which may be made of sufficient length to properly direct a saw the entire distance across the lumber being cut, being contractible to pieces of smaller widths, so as to gain correspondingly in the length of the saw stroke.

The preferred embodiment of the invention is illustrated in the accompanying drawings and described in the following s iecification. An inspection of the claims will show, however, that the structure illustrated and described is open to various changes and modifications.

In the drawings, Figure 1 is a perspective view of the entire miter-box, showing the same applied to a piece of timber. Fig. 2 is a longitudinal sectional view through the same. Fig. 3 is a cross-sectional view through the stop-flange and holding-arm. Fig. & is a detail sectional view through the adjustable guide-plate and. saw. Fig. 5 is a detail perspective view showing the hinge connection between the holding-arm and guidehood, and Fig. 6 is a detail perspective view of the base-plate.

Similar reference-numerals indicate corresponding parts in all the figures of the drawings.

In the embodiment illustrated a base-plate 10 is employed, which is preferably formed of sheet metal and is provided at one edge with a depending-stop flange 11, one of the other sides, 12, being beveled, as shown, the 5 flange 11 also havingabeveled endll. Upon this base-plate is pivoted, by means of a bolt 13, an angle-plate 14:, the pivot being preferably located in the corner, as shown, and the angle-plate being freely movable upon the base-plate. It is normally held against such movement, however, by means of a clampingnut 14L, threaded upon the upper end of a stud or bolt 15, which projects above the face of the base-plate and passes through a curved slot 16 in the angle-plate. The pivot-bolt 13 may also have a tlnunb-nut, as 17, which when screwed down upon the bolt 13 assists in holding the angle-plate against movement.

Connected to one edge of the angle-plate 14L 6 5 is an extensible saw-guide, which is constructed. as follows: An upstanding hood 18 is hinged, as shown at 19, to the edge of the angle-plate, the outer wall 20 of said hood being spaced from the inner wall and terminating short of the lower edge thereof. Slidably mounted within the hood and longitudinally movable with relation thereto is an adjustable guideplate 21, having at its inner end an outstanding stud or bolt 22, which projects through a longitmlinally-disposed slot 23, formed in the inner wall of said hood. A holding-nut 24, threaded upon the stud 22, normally holds the plate against its sliding movement. The space between the guide-plate and the outer wall 20 30 of the hood is sutiieient to receive a saw 25,

which may be of any desired or well-known construction, being provided, however, with a longitudinal slot 26. The guide-plate has a vertical slot 27, that is arranged in intersect- 8 5 ing relation with the slot 26, and a headed bolt 28 is passed through these slots at their points of intersection. This bolt thus connects the saw and guide-plate, but permits the free movement of the former. In order to preto prevent the nut clamping the saw and guideplate together against movement. This structure is fully illustrated in Fig. 4.

For the purpose of obtaining different angles of inclination from the perpendicular the saw-guide is hinged as above described; but as it is necessary to fasten the guide against its swinging movement an arm 33 is employed, which is pivoted, as shown at 34, to the outstanding leaf of a hinge 35, secured to the upper portion of the guide-hood. The lower end of this arm extends diagonally across the stopfiange 11 of the base-plate, and said flange and arm are provided with longitudinally-dispos ed slots 36, which are located in intersecting relation, suitable scales being located along the slots, as illustrated. A fastening-bolt37 passes through these slots and serves as an adjustable connection between the flange and the arm. This bolt has a head 38 at its inner end, which may be seated in a socket 39, formed by offsetting the metal of the flange about the opening 36, so that the head will be flush with the inner face of the flange and the latter will present a smooth unobstructed inner surface.

, In use the base-plate is placed directly upon the article to be cut, with the stop flange against a straight-edge of the same. The angle of the saw is then adjusted by swinging the angle-plate upon the base-plate and afterward fastening it against movement by means of the nut 14. This adjustment can be readily obtained, as the angle-plate is preferably provided along one side of the curved slot 16 with suitable graduations, as shown in Fig. 1.

If the cut is to be at an angle from the perpendicular, the saw-guide may be swung upon its hinges after the fastening-bolt 37 has been loosened, the amount of such-adjustment being determined by the scales that are located on the stop-flange and holding-arm. When the several adjustments have been made, the guide is extended by sliding the guide-plate 21 outwardly across the beam or timber, and as a result the saw will necessarily be properly directed, as it will thus be directed across the entire width of the material, the undercutting by the saw being permitted by thebeveled end 11 of the stop-flange. The whole machine is of course held rigidly in position by one hand of the operator, leaving the other hand free to actuate the saw.

It will be apparent from the accompanying drawings that the structure is very simple and can be cheaply manufactured. It is applied directly to the material to be cut and has a wide range of adjustment. At the same time the different parts do not interfere with one another. For instance, because of the hinge connection between the guide and the holding-arm and the arrangement of the connection of said holding-arm with the stop-flange, the base-plate is left entirely clear to permit the free swinging thereover of the angle-plate.

The extensible saw-guide is a very important feature of the invention, as will be evident, and while it can be extended to properly direct a saw across a wide piece of timber it can also be contracted for narrow strips, so that in the latter case long strokes of the saw can be obtained.

From the foregoing it is thought that the construction, operation, and many advantages of the herein-described invention will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a miter-box, the combination with a base, of a hood mounted on the base and arranged to embrace a saw, and a guide-plate ad justably mounted on the hood and movable longitudinally of said hood and of a saw arranged therein.

2. In a miter-box, the combination with a base, of a hood mounted on the base and arranged to embrace a saw, a guide-plate adjustably mounted on the hood and movable longitudinally of a saw placed therein, means for securing the plate and hood against relative movement, and a device for securing the saw to the free end of the plate to prevent lateral movement of said saw with respect thereto.

3. In a miter-box, the combination with a base, of a guide-hood mounted on the base and having a substantially horizontal slot, a guide-plate slidably mounted in the hood and projectable beyond one end thereof, and a bolt secured to the plate and passing through the slot of the hood to hold the plate and hood against relative movement.

t. In a miter-box, the combination with a base-plate arranged to be placed upon the material to be cut and having a stop-flange at one edge, of a guide-hood hinged to the base and having a horizontally-disposed slot in one wall, a guide-plate slidably mounted in the hood and projectable beyond one end thereof, a bolt projecting from the guide-plate and extending through the slot in the hood, and means for loosely securing a saw to the outer or free end of the guide-plate.

5. In a miter-box, the combination with a base, of a saw-guide having a portion longitudinally movable with respect to the base, said portion being provided with an upright slot, of a saw, and a connection passing through the saw and movable in the slot of the guide.

6. In a miter-box, a saw-guide, a saw movably mounted in the guide, said guide and saw having slots that are disposed in intersecting relation, and a connecting device passing through the slots and freely movable therein to permit the movement of the saw both longitudinally and vertically.

7 In a miter-box, a saw-guide having a Vertically-disposed slot, a saw movably associated with the guide and having a longitudinally-disposed slot, and a bolt passing through the slots and loosely arranged therein to permit free movement of the saw both longitudinally and vertically.

8. In a miter-box, the combination with a base having a depending stop-flange arranged to abut against the material to be cut, of a hinged saw-guide mounted on the base, a holding-arm secured to the guide and extending transversely of the stop-flange, said flange and arm having longitudinally-disposed intersecting slots, and an adjustable clamp-bolt passing through the slots of the arm and stop-flange.

9. In a miter-box, the combination of a base having a stop-flange, of a hinged saw-guide mounted on the base, a holding-arm secured to the guide, said arm and stop-flange having slots disposed in intersecting relation, and a fastening-bolt passing through the slots at their points of intersection.

10. In a miter-box, the combination with a stationary base, of a vertically-swinging sawguide having a vertical pivotal connection with the base and swinging horizontally upon the same, and a holding-arm for the guide having an adjustable connection with the stationary base and a vertical and horizontal pivotal connection with the guide to permit the vertical and horizontal swinging movement of said guide with respect to the base.

11. In a miter-box, the combination with a stationary base, of an angle-plate located on the base, avertical pivotal connection between the base and plate, means for securing the angleplate against movement on the base, a saw-guide hinged on a horizontal axis to the plate, a holding-arm having a vertical and horizontal hinge connection with the guide, and an adjustable connection between the holding-arm and the stationary base.

12. In a miter-box, the combination with a base having angularly-disposed side and rear edges, of a stop-flange depending from the rear edge of the base and extending to he side edge thereof, the end oi the flange adjacent said side edge being downwardly beveled away from the side edge, and a hingedlysupported saw-guide connected with the base and located contiguous to the side edge of the same, said guide extending to the beveled end of the stop-flange.

In testimony that I claim the foregoing as my own I have hereto ailixed my signature in the presence of two witnesses.

DANIEL FRANK UPDEI tAllF.

Witnesses:

I-I. A. Esrns, H. W. SI'IIVELY.

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