US1092576A

US1092576A - Miter-box.

Info

Publication number: US1092576A
Authority: US
Inventors: William E Kawalle
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-10-08
Filing date: 1912-10-08
Publication date: 1914-04-07
Anticipated expiration: 1931-04-07

Description

W. E. KAWALLE. MITER B0X. APPLICATION FILED 00T.8, 1912.

1,092,576. Patented Apr. 7, 19NL 2 SHEETS-'SHEET l.

'IN VENTOR coLulnM PLANoaRAPH co.. WASHINGTON. D. C.

W. E. KAWALLE.

MITER BOX.

APPLICATION FILED OUT.8, 1912.

Patented Apr. '7, 1914 2 SHEETS-SHEET 2.

WITNESS Es:

VWILLIAM E. KAWALLE, 0F OAKLAND, CALIFORNIA.

Specification of Letters Patent.

Patented Apr. "7, 1914.

l Application filed October 8, .1912. Serial No. 724,616.

To all whom t may concern Be it known that I, WILLIAM E. KAWALLE, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented new and useful improvements in Miter-Boxes, vof which the following is a specification.

This invention relates to a miter box.

It is the object of this invention to pro-` vide a miter-box that is adjustable to various positions to enable cutting at any angle, either from the inside or outside of a moldm0'.

parts as hereinafter `more fully described.

and claimed, having reference to the accompanying drawings, in which- Figure 1 is a plan view of the invention. Fig. 2 is a side elevation of same with parts broken away. Fig. 3 is a vert-ical section on the line X-X of Fig. 2, partly in elevation. Fig. 4 is a horizontal section on the line TMY of Fig. 3.

In the drawings A represents the base of the miter-box, which is provided with legs 2 at its corners, and is supportedclear of the surface on which the miter-box is to be mounted.

The molding supporting plates are in dicated at 3 and 3, which are designed to be pivotally connected at their inner ends, and mounted to swing horizontally to various angular positions in relation to each other on the base A.

The essence of this invention resides in the means for adjustably mounting the

plates

3 and 3, and for locking them against movement in various positions. The mountings for the

plates

3 and 3 consist of a pair 0f l further object is -to provide miter;

circular toothed racks 4 and 4', a drum 5, pinions 6 carried by the drum 5 engaging with the circular racks 4 and 4, and threaded

pivot pins

7 and 7 pivotally connecting the toothed racks 4 and 4 and the drum 5 to the base plate A.

The toothed rack 4 is rigidly mounted on the inner end of the plate 3 and extends in a horizontal position, with its teeth on the underside; the rack 4 being preferably integral .with the plate 3. The rack 4 is formed on a hanger 8, rigidly mounted on the plate 3 and extends in a horizontal position with its teeth uppermost a short distance below the plate 3.

The toothed rack 4 is designed to rest on a bearing plate 9 formed on a hanger 10,

v rigidly mounted on the plate 3; the bearing plate 9 resting on the upper face of the base plate A. The drum 5 which is closed at its peripheral edge and ends, is positioned between the toothed racks 4 and 4, bearing on the latter; the pinions 6 being disposed on diametrically opposite sides on the drum 5, and meshing with. the racks 4 and 4, as shown in Fig. 2.

The pivot pin 7 is in the form of a bolt, which extends upwardly through the base plate A, bearing plate 9, rack 4, and is 'threaded into the underside of the drum 5.

The pivot pin 7 extends through the inner end of the plate 3, passes through the toothed rack 4 on the plate 3, and is threaded into the upper side of the drum 5; the

pins

7 and 7 being positioned directly opposite and in alinement with each other on the .axis of the drum 5, and centrally of the racks 4 and 4. The

pins

7 and 7 thus form a divided pivot around which the

plates

3 and 3 may be turned in relation to each other.

Extending transversely through the drum r5, diametrically thereof, and supported in which are so positioned that when the saw is mounted therein, it will extend across the axial centers of the

pivot pins

7 and 7, around which the

plates

3 and 3 are turnable.

Mounted on the

plates

3 and 3 are

vertical alining plates

17 and 17 which plates are pivotally connected at their outer ends at 1S, to standards 19 carried by the

plates

3 and 3 adjacent their outer ends, and extend inwardly along the

plates

3 and 3, and terminate at a point adjacent the pivot pin 7.

The alining plates 17 and 17are designed to be rocked in a vertical direction on the pivots 1S, as indicated in dotted lines in Fig. 2; the

plates

17 and 17 being rigidly secured against lateral movement when in their' normal horizontal position, by means of downwardly extendingprojections 20 formed thereon, which engage slots 21 formed in the

plates

3 and 3. This manner ot mounting the

plates

17 and 17 is provided as a means for enabling the workmen to raise one of the

alining plates

17 or 17 so that a molding may be passed therej under and rest against the other alining plate, when

vthe plates

3 and 3 are posit-ioned at an angle in relation to each other, as indicated by the dotted Vlines a-a in Fig. 1.

Mounted on the drum 5, and surrounding the toothed racks L1 and t is a cylindrical easing 22, which is provided as a means for excluding sawdust from the toothed racks. The lower end of the pin 7 is formed with a round collar 23 and a square head 24; the latter being adapted to be engaged by a Wrench 25 when it is desired to turn the pin 7 in either direction. r1`he wrench 2'is carried by the pin 7 and is held in place thereon by means of a plate 26 secured to the pin 7 the wrench 25 being designed to be lifted so that it may be freely turned around the collar 23 without turning the pin 7, then dropped into engagement with the head 2-1 when turned Vvto a desired position.

In the operation ot the invention the pin 7 Vis loosened sufficiently by means of the wrench 25, to permit ot the

plates

3 and 3 beingturned freely in either direction until positioned at the desired angle inrelation to each other, whereupon the pin 7 is screwed into the drum 5, thereby clamping the latter against the toothed rack 11, thereby blocking the pinions 6 against rotation and thus securing the

plates

3 and 3 against movement. A graduated arc 27 is formed on the upper face ot' the toothed rack i in such position as to enable the workmen to set the miterboX at any desired angle. When the plates 3 -and 3 have been positioned and locked against movement, a molding is placed thereon and cut in the usual manner by means of the saw extending through the saw-guides 16, which Vguides are adjusted toY any desired position' by shifting the bar 12 or the blocks 1-1 thereon.

It will be seen that by reason o1 the pinions 6 meshing with the racks s and LI that when either of the

plates

3 or 3 is` swung, the other plate will move in unison therewith in the opposite direction; the rotation of either rack et or 4 being transmitted to the other through the pinions 6. i

As ameans for adapting the miter-box to cutting circular or arcual pieces on a ra.-V dius, a pair ot' removable abutment pins 2S are inserted into sockets or perforations in the upper face of the drum 5, through arcual slots 29 formed in the

plates

3 and 3 concentric with their pivotal points and adjacent thereto. These pins 28 are placed in position when it desired to cut Vcurved pieceson a radius and are removed when handling 35 straight work. In cutting this radius the piece to be cut is positioned with its peripheral surface ,contacting the abutment pins whereupon the

plates

3 and 3 are moved and clamped in a position with the alinement plates-17 and 17 contacting the edge of the circular piece. The saw will then be disposed on the radius it is desired to cut. Y

I-Iaving thus described myV invention, what I claim and desire to secure by Letters Patent, isf

1. A miter-box comprising a base, a pair of superposed continuous circular toothed racks7 molding supporting plates attached to 100 said racks. a drum interposed between said racks, pinions carried by the drum engaging with the racks, threadedl pivot pins pivotally connecting the toothed racks and the sfo drum to the base plate, and means for ro- Y tating one of said pivot pins to clampY the toothed racks and drum against movementY in relation to the base.

2. In a miter-hox, the Vcombination of a base, a pair of superposed continuous 11o toothed racks,` molding supporting plates attached to said racks, a drum interposed be-V tween said toothed racks, pinions on Vsaid drum meshing with the toot-hed racks, a threaded pivot pin connecting the uppermost rack to the top of the drum, a threaded pivot pin connecting the lower toothed rack to the underside of the drum and to the base, and means for rotating said last-named pivot pin to clamp the pinions carried by 12e the drum against the teeth of the lower rack to lock the drum and the racks against piovement in relation to each other and the ase.

3. In a miter-boX, theeombination otra base, a pair of superposed. continuous toothed racks, molding supporting plates attached to said racks, a drum interposed between said toothed racks, pinions on said drum meshing with the toothed racks, a is@ threaded pivot pin connecting the uppermost rack to the top of the drum, a threaded pivot pin connecting the lower toothed rack to the underside of the drum and to the @base7 means for rotating said last-named pivot pin to clamp the pinions carried by the drum against the teeth of the lower rack to lock the drum and the rack against movement in relation to each other and the base, a bar extending horizontally through the drum, means for adjustably securing the bar to the drum, and saw-guides carried by said bar.

4. A miter-boX comprising a base, a pair of superposed continuous circular toothed racks7 molding supporting plates on said racks, a drum interposed between said racks, saw guides carried by said drum, pinions on the drum engaging the racks, and threaded pivot pins pivotally connecting the toothed racks and the drum to the base plate.

5. A miter-box comprising a base, a pair of superposed continuous circular toothed racks, molding supporting plates on said racks, a drum interposed between said racks,

a horizontal bar carried by said drum, a. vertical saw guide on said bar on each side of the drum, pinions on the drum engaging the racks, and threaded pivot pins pivotally connecting the toothed racks and the drum to the base plate.

G. A miter-box comprising a base, a pair of superposed continuous circular toothed racks, horizontal molding plates on said racks, vertical molding guide plates on said supporting plates, a drum interposed between said racks, a horizontal bar adjustable on said drum, saw guides on said bar, and means for clamping the toothed racks and drum to the base to hold the molding supporting plates and saw guides against horizontal movement in relation to each other.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

WILLIAM ie. KAWALLE.

lVitnesses:

JOHN H. HERRING, W. W. HEALEY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.