US400801A - Charles w - Google Patents

Description

ilNiTED STATES i ATENT FFICE" CHARLES W. SLEEPER, OF ISLAND POND, AND RUSSELL M. WVOODARD, OF NORTON, VERMONT; SAID SLEEPER ASSIGNOR TO SAID WVOODARD.

SAW-GUIDE.

SPECIFICATION forming part of Letters Patent No. 400,801, dated April 2, 1889.

Application filed October 8, 1888.

Serial No. 287,597. (No model.)

To aZZ whom it may concern:

Bc itknown that we, CHARLES W. SLEEPER and RUSSELL M. WOODARD, citizens of the United States, residing, respectively, at Island Pond, in the county of Essex and State of Vermont, and at Norton, in the county of Essex and State of Vermont, have jointly invented a new and useful Saw-Guide, of which the following is a specification.

Our invention relates to improvements in saw-guides in which adjustable fingers with points or bearing-surfaces of wood act to grasp and steady the rims of large circular saws.

The objects of our improvements are, first, to provide reliable and substantial means of applying guides to the top of the saw; second, to provide means by which the guides may be instantly removed and replaced when necessary; third, to provide means of lubricating the bearing-surfaces of guide-fingers to prevent heating the saw by friction.

Ne attain these objects by the mechanism illustrated in the accompanying drawings, in which similar letters refer to similar parts throughout the several views.

Figure 1 is a front elevation of the device. Fig. 2 is a side elevation of the same with lever for raising attached. Fig. 3 is a front elevation of the device, showing same raised to clear a large log. Fig. 4 is a section of block A and slide B, taken at linesmc, Fig. 1.

Our invention is composed of a guide-block, A, a slide, B, fingers or guides O O, oil-cups 0 c and mechanism for operating same, described as follows: The guide-blo k A is provided with slots a a, for securing the same to a suitable frame, (which will be provided to receive it and does not form a part of our invention.) An adjustable stop, a, is secured to the guide-block A by screws a a The slide Bis fitted with dovetail to the guideblock A in such manner that it may slide freely in the same, and is provided with projections or ears I) b b, to receive the adj usting-screws b b and the rod 0 A latch, b is attached to the slide 13 by a screw, 1), and serves to prevent the rod 0 from sliding while lowering the slide B by dropping below the block 0, thus preventing the fingers O G from grasping the saw until they arrive in proper position, when the lat-ch b is tripped by the stop a. A stop-screw, b, is fitted to an ear, 1), upon the slide B, and serves to adjust the height of slide B when lowered by striking and resting upon the guide-block A. The'fingers O O are secured to the slide 13 by the screws 0 0, upon which they are free to turn, and are connected by the links c c to the rod 0 The said fingers are provided with buttons of wood, 0 c and also with oilcups 0 c fitted to suitable projections upon the said fingers. Tubes 0 c serve to guide the oil to the buttons 0 0 The rod 0 is fitted loosely to the ear I), and also to the block 0 which is held and adjusted by screws 11 11 A block or collar, 0'', is fastened upon the rod 0 and is provided with a pin, 0 to which a lever, d, is attached by a connecting-link, d. The lever d is supported by anyconvenient 7o hanger in such position that it may be convenient to the hand of the sawyer, and is secured by a pin or bolt passed through the hole d said bolt forming the fulcrum of the lever. i To apply the device, the guide-block A must be secured to a substantial frame in such position that the fingers O C may grasp the saw, as shown in Figs. 1 and 2. The slotsaa are provided for setting the device in proper line with the saw. Slight adjustment may be made with the screws b 11 The rod 0 is lowered until the links 0 c are nearly in a horizontal position, when the buttons 0 a should touch the saw upon either side. As the buttons wear away, the rod 0 is lowered until the buttons again grasp the saw by moving the check-nuts c 0 The stop a is set to trip the latch b when the slide B shall reach its lowest point. The height of the 9c slide B when lowered is adjusted by moving the stop-screw b", (which rests upon the guideblocl A,) and should be such as will allow the buttons c c to grasp the saw below the base of the teeth.

In raising the device to allow a large log to pass, the lever cl is grasped at d and pulled down, thus raising the rod 0 and causing the lower ends of fingers O O to separate and leave the saw free. The block 0 as it rises I strikes the ear or projection 19, and thus carries the slide B with it to any desired height.

saw, as before.

\Ve do not show or describe the manner of supporting the lever (Z or the guide-bloek A,

as we claim 11o especial same.

arrangement for the \vhat we claim as our invention, and desire to secure by patent, is

l. A slide working in a suitable guidebloelc and carrying two movable guide-nib gers to grasp the saw, combined with a rod, connected to the guide-fingers by two links, (1 c, which form a toggle-joint between the extremities of the said guide-fingers and act to open and close the same, and with means, substantially as described, to raise and lower the slide and to raise and lower the rod 0 iinlependently of the slide, substantially as described, and for the purpose set forth.

2. The slide B, the guide-lingers, and the rod 0 combined with the latch D to prevent the rod 0 from moving While lowering the slide, and with the stop a, to trip the said latch and allow the rod to move when the slide reaches its lower position, substantially as described, and for the purpose set forth.

3. The slide the guide-fingers, and the rod 0 combined with the adjustingscrews D to adjust the guide-fingers to line with the saw, and with the stop-screw Z), to adjust the height of the slide, substantially as described, and for the purpose set forth.

CHARLES WV. SLEEPER. RUSSELL M. YVOODARD. \Vitn esses WM. II. WARD, ALLAN M'oYLn.

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