US676109A

US676109A - Miter-box.

Info

Publication number: US676109A
Authority: US
Inventors: Ernest A Westphal
Original assignee: Individual
Current assignee: Individual
Priority date: 1900-10-19
Filing date: 1900-10-19
Publication date: 1901-06-11
Anticipated expiration: 1918-06-11

Description

No. 676,|09. Patented lune n, l90l. E. A. WESTPHAL.

MITEB BOX.

(Applieafiun filed Oct. 19, 1900. (No Iodal.) -2 Sheets-Shaet l.

gait/masses: [Egg]??? %2W fi/mw No. 676,!09. Patenteljjuna ll, I90I.

E. A. WESTPHAL.

INTER BOX.

7 Application filed Oct. 19, 1900. (No Model.) -2-Shee ts-Sheet 2.

nu: norms PETERLUL mo ounw" wnsmioma, |:.,c.

UNITED STATES PATE T OFFICE.

ERNEST A. \VESTPIIAL, OF HARTFORD, CONNECTICUT.

MlTER-BOX.

SPECIFICATION forming part of Letters IPatent No. 676,109, dated June 11, 1901.

Application filed October 19 1900 sear. No. 33,644, (No model.)

i To aZZ whom it may concern:

Be it known that I, ERNEST A. WEsTPHAL, a citizen of the United States, and a resident of Hartford, county of Hartford, and State of Connecticut, (having post-ofiice address at 76 Greene street,-I*Iartford, Connecticut,) have invented certain new and useful Improvements in Miter-Boxes, of which the following is a full, clear, and exact description,whereby anyone skilled in the art may make and use the same.

My invention relates to that class of devices commonly used in carpentry for accurately cutting pieces of wood and other material to any desired angle.

One object of my invention is to provide a device which will be of light and cheap construction and may be easily taken apart and assembled,formingaconvenient device which may bepacked in a small compass.

A further object of the invention is to provide a device of this class which may be used with equal facility either with a back-band saw, such as is often used with miter-boxes, or the ordinary saw, which is commonly used in carpentry. V

A still further object is to so arrange the several parts that when either of the saws above named is used a positive guide will be located adjacent to the blade to hold it always in proper position with'relation to the work.

Referring to the drawings, Figure 1 is a plan view of the improved device with parts out in section. Fig. 2 is an end view of the device shown in Fig. 1 looking from the left of said figure. Fig.3 is a detail view, on an enlarged scale,showing the guide=support and the mech anism for locking and shifting it. Fig. 4 is an end View of the parts shown in Fig. 3 with the operating-lever removed. Fig. 5 is a plan view, on enlarged scale, of the guide-tubes and their support-tubes at one end, being cutin section. Fig. 6 is a detail view in elevation of the back-band guide. Fig. 7 is a side elevation of one of the tubes with parts broken away and the support and intermediate members out in section. Fig. 8 is a detail cross-sectional View showing the lower portion of the tubes and their support. Fig. 9 is a sectional view through the tubes and support, showing the details of construction of the saw-blade guides.

In the accompanying drawings the numeral 1 denotes the base, and 2 a riser supported at substantially right angles to the base, the two forming a guide and rest for the Work. The base 1 is made in two sections 3 4, which may be secured together in any suitable manner, as by metallic bands 5; but these two sections are preferably hinged, as at 6, so that the two parts may be folded back upon each other for obvious purposes. The saw support and guide 10 is pivoted, preferably, coincident with the pivot of the hinge joining the two sections of the base, and the adjacent portions of the base ,are cut away a sufficient distance and at the proper angle to permit the wide latitude of movement for this swiveled support 10.

To form a suitable rest for the support 10, segments of metal properly formed are arranged below it and between the adjacent ends of the sections of the base, as denoted by the numerals 7 8. These metallic segments are preferably of L form, and the outer one, 8, has its vertical wall perforated, these perforations cooperating with a detent located on the supporting-guide to lock the latter and its saw at any desired angle with relation tothe base. If desired, the base may be mounted upon suitable standards, as 9. The support 10 is preferably formed froma pair ofT-shaped members 11 12, suitably se cured together and provided with an opening 13 between their adjacent sides. At either end of the structure thus formed are located guide-posts 14 15.

The guide-posts are tubular and comprise two sections, which are telescopic, the outer tube 15 being firmly secured to the base 10, while the inner tube 16 may be raised or lowered at will for the purposes hereinafter described. These supporting tubes are arranged on opposite sides of the opening between the T-shaped members of the base, and the inner tubes are preferably tied together at their tops, as by cap 17, which causes both of the adjustable tubes to move in unison.

The riser 2, which is preferably made of wood, is provided-with stays 18, the lower posts. 5

tubes are cut away, as indicated at 24 in Fig.

5. The inner tube 16 has its edges projecting slightly beyond the edges of the tube 15. The abutting edges of the inner tube are serrated, as indicated in Fig. '7, and these serrations cooperate with a detent-lever 25,which is arranged within orifices formed in the sides of the back-band guide 26. The lever has an operating-handle 27, which extends beyond the limits of the tubes and lies in convenient position to be operated by the finger.

The spring normally holds the ends of the lever in engagement with the serrations of the inner tube, and when for any purpose it is desired to adjust the position of the backmoved to required position.

When an ordinary saw is used, a guide 28 is placed within the back-band guide. The

in any desired manner. Both the guide and the dependent supports are made adjustable, as illustrated in Fig. 2.

'To hold the guide-tubes firmly in place and yet permit adjustability lengthwise of the support, 10, the latter is cut away, as indicated at 30, and the tubes instead of being mounted directly upon the support 10 are secured to a bracket 31, which partially rests upon a support 32 and has a clamp-screw 33, by which the supports are secured in their adj usted positions.

Between the forward pair of guide-tubes there is arranged a blade-guide 35, which has two sections, one of which, 36, is rigidly secured to the inner tube of one of the guide- The other section of the guide is swiveled to a block 37, carried upon a slide 38, arranged within the inner guide-tube and provided with an adjusting-bar and thumb-screw 39 40. The thumb-screw, cooperating with its block, takes about the rib 41, formed by cutting away portions of the outer guidetube. To prevent the saw-teeth cominginto contact with the metallic parts of the frame in case the wood is cut entirely through, rollers 41 are arranged between the T-shaped members of the support 10 to receive the teeth of the saw.

While the details of the device have been specifically described, it is obvious that many changes might be made without altering the and the telescopic guide-tubes and guides arranged for the purposes herein set out would come within the scope of my invention.

I claim as my improvement- 1. In combination in a device of the classspecified, a sectional base and intermediate connections forming the floor of the box, removable risers detachably connected to said base, a swinging saw-frame pivoted to said base comprising pairs of telescoping tubular guide posts arranged at each end of said frame, devices carried by said posts for supporting the saw, an adjustable guide for the blade of the saw arranged between the front posts and means for raising or lowering the cutting edge of the saw.

2. In combination in a device. of the class specified, a sectional base and intermediate connections forming the floor of the box, a support for the saw-guides comprising-two T- shaped members secured together and pivoted to the base and a saw-guide arranged thereon, comprising pairs of telescoping band guide the lever 27is raised and the guide tubes arranged at each end thereof and an 1 automatically-adjustable guidefor the sawblade arranged between the front pair of tubes. dependent hangers 29 are secured to the saw 3. In combination in a device ot' the class specified, a sectional base and intermediate connections forming the floor of the box and comprising a pair of T-shaped members secured together, pairs of telescoping guideposts arranged at each end of said support, the inner members of each pair of posts being secured together at or near their tops, sub

stantially as described.

4. In a miter-box, the combination with a swinging base pivoted to said box, of telescoping guide-posts arranged in pairs at each 1 end of said swinging base, and adjustable guides for the saw-blade arranged between said guide-posts.

5. In combination in a device of the class specified, the sectional base and intermediate connections forming the bottom of the box, 'a support for the guide-posts comprising T- shaped members secured together and pivoted to the base, telescoping guide-posts arranged in pairs at each end of said support, adjustable guides for the blade of a back band guide arranged between each pair of posts and an auxiliary supporting means for an ordinary saw-blade arranged to be carried by the telescoping members of said guidetubes, substantially as described.

ERNEST A. WESTPHAL.