US292331A

US292331A - Liddkll

Info

Publication number: US292331A
Authority: US
Publication date: 1884-01-22
Anticipated expiration: 1901-01-22

Description

' f UNITED STATES PATENT OFFICE.'

' SAW-GUIDE.

SPECIFICATION forming part of Letters Patent No. 292,331, dated January 22, 1884. Application filed December 1, 185:5. (No model.) V

To all whom it may con/ cern Be it known that I, WALTER J F.- LinnnLL,

` of Charlotte, county of Mecklenburg, State of North Carolina, have invented a new and useful Improvement inSaw-Guides, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification.

A My invention relates to a new and useful improvementv in guides for circular saws, adapted to be adjusted easily and quickly to accommodate itself to the cut of the saw, for the purpose of guiding and steadying the lat-- ter; also, to means whereby said guide may be moved out of proximity with the cut of the saw, and whereby one arm of said guide may be moved away from -the saw independently of the other arm when it is desired to remove the saw itself for sharpening or other purposes; and it consists in certain features and details of construction and arrangement, hereinafter fully set forth, whereby said guide is rendered capable of being adjusted with ease and rapidity, at the same time providing asaw-guide which is inexpensive and durable, and which is also simple in construction. y

In the accompanying drawings, Figure 1 represents a side elevation of the saw-frame and saw with my improvements applied thereto. Fig. 2 isa plan viewof a portion of the same; Fig. 3, a transverse section, and Figs. 4'and -5 enlarged detail views for better illustrating my improvements.

A A represent the transverse, and A A the longitudinal,framebars of a saw-mill. Upon one of these longitudinal bars A* an angular bracket or raised guide plate or rail, B, having pendent ears or lugs B3 extending down upon either side of the bar A', is secured by means of bolts b b. rlhis guide-plate is provided along its center with a slot, B', for a purpose which will be hereinafter specified.

-wise for any cause.

further provided with other anges, similar to those just described, but which extend upward from the upper surface of said plates, and at right angles to the pendent flanges above described. rlhese iianges (designated by c' c) are adapted to receive between their inner adjacent sides the inner ends of L-shaped or angular arms D and E, as shown in Fig.- 2, whereby. said arms will be guided in their move- 'ments back and forth transversely of the elevated track. The arms D and E,Vas before `mentioned, are by preference made of angular or bell-crank form, and the former one, D,

which is located farthest from the saw-shaft,

is made longer, for the purposeof bringing its outer end D2 opposite the outer end1E2 of j vthe arm E'. The arms D and E are also slotted when in their adjusted position. The bolts F F are provided ou their low er extremities with square heads F2, whichv fit between suitable anges or pendent ribs, b2 b2, castor otherwise formed upon the lower face of the track B, and extendingV any desired length, preferably of the same length as the slot B, thus forminga guideway for the head of the bolts F F and preventing the turning of the latter. The outer ends ofthe bell-crank arlns are provided with slotted enlargements D2 E?, as shown, and both being of the same form and for one and the same purpose, vit is necessary to describe only one of them.` Theslotted portion D2 of the arm D is of a size suitable for the reception of a block or' bearing-'piece D3, of wood or other suitable material, which isheld rmly in place by means of an adjustable screw and bearing-plate, d. The plate d is angular inform, or, in othcrwords, has short flanges d3 d3 at its ends, which overhang the wall of the slot and prevent displacement of the plate when-the bearing-block D3 is adjusted-end- The screw d2 works-in a threaded perforation in the portionD2 of the arm D, and bears with its end against the plate d', the latter servingto firmly clamp the bearing-block D3 in place, while at the same IOO time facilitating itsadjustment. It is intended when the arms D and E are properly adjusted that the bearing-blocks D: and E shall bear lightly against the surface of the saw, and as near the eut of the same as practicable; and also that they shall be in an exactly-opposite relation oneto the other upon opposite sides of the saw, as shown clearly in Fig. 2. When the arms D and E are so adjusted, their blocks or seats C C will be brought together, one abutting against the other. This is a great advantage, as it will be apparent that the seat C, which is farthest from the saw-shaft, may be released by loosening the nut or bolt F, and be moved along the guide plate or track l until its enlarged outer end, containing the bearing-block D, is carried beyond the teeth of the saw G, thus allowing thesaw to be removed without disturbing the other arm, E, of the saw-guide. \Vhen the saw is again replaced, the seat C, above referred to, may be moved baci; along the raised guide-plate B until it reaches and is stopped by the other seat, C, when, as before mentioned, the boaring-block D3 will be exactly opposite the block El, thereby facilitating the readjustlncnt of the guide.

The angular guide-armsD and E are adapted to be adj usted upon their adjustable seats CC', as follows, viz: rlhc arms D and E are provided at their inner ends with pendent ears d d, as shown in Fig. 4, and the seats C C are provided with adj ust-able screws c, which have upon them suitable flanges, c3 c, located at such a distance apart that they are adapted to receive between them the ears d d, above referred to.

It will be seen that by turning the'screws c2 the arms D and E, through the median-lof the parts just described, will be adjusted transversely 0f the saw, and when brought into the desired relation to the same they may be clamped and held secure by means of the bolts F and F', hereinbeforc referred to.

Having now described my invention, what I claim, and desire to secure by Letters Patent, 1s

l. In a saw-guide, the slotted guidcplate or rail B, secured to the frame in which the saw is mounted, upon one side thereof, and provided with the sliding independently-adjustable seat-blocks C and C, in combination with the slotted arms D and E, adjustably secured to said seat-blocks, for the purpose and substantially as described.

2. In a saw-guide, the flanged seat-blocks C and C', sliding and adjustable independently of each other upon the slotted guide plate or rail B, upon one side of the saw, in combination with the angular guide-arms D and E, adjustably secured upon said independentlyadjustable seat-blocks, and means, substantially as described, for adjusting said guidearms upon said flanged seats, substantially as described.

3. In a saw-guide, the guide-arnisD and E, adjustable upon and in combination-with the seat -bloclis C and C,independently adj ustable upon the guide-plate B, secured to the frame, upon one side ofthe saw, whereby one of said arms, D, may be removed beyond the cut of the saw by slidingthc scat-block C upon rail D, and the saw detached without adjustment of arm E, substantially as described.

4. In a saw-guide, the angular arms D and E, adjustable in the manner and by the means substantiallyv as shown and described, and provided at their outer ends with slotted enlargements D' El, in combination with bearingblocks D E, located in said slotted enlargements, and held in place by the Iianged plates d and screws d, whereby the said blocks D3 may be adjusted laterally in their, slots to accommodate the saw, substantially as described.

5. In a saw-guide, the angular guide-arms D E, provided with pendent ears d el and slots D, in combination with the adjustable flanged seat C and C, slotted at C2, and provided with the screw e, having the collars 0301, and the bolts F i", all arranged and operating in the manner and for the the purpose substantially as described.

6. In asaw-guide, the slotted elevated guideplate B, secured to the frame, and provided. with the pendent flanges b2b?, in combination with the slotted seat-blocks C and C', provided with flanges c c c c', the slotted guidearms D and E, and through-bolts F and-F', passing through the slots in the said arms, seatblocks, and guide-rail, all for the purpose and substantially as described.

Intestimony whereof I have hereunto set my hand this 24th day of Xovembcr, A. D. 1883.

WALTER J. Ir. LIDDELL.

\\itncsses:

Yrxrox Linnnm'., T. FnaXKLIN.

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