US732958A - Drag-saw. - Google Patents

Description

PATENTED JULY 7, 1903.

L. PHILLIPPS.

DRAG SAW. rum-non FILED FEB. 2. 1903.

2 SHEETS-SHEET 2- luuemfoz Patented July '7, 1903.

PATENT OFFICE.

LOUIS PHILLIPPS, OF COLUMBUS, NEBRASKA.

DRAG-SAW.

SPECIFICATION forming part of Letters Patent N 0. 732,9 58, dated July 7, 1903 Application filed February 2, 190 3. Serial No. 141.533. (No model.)

To all whom/ it may concern:

Be it known that I, LoUIs PHILLIPPS, a citizen of the United States, residi'ng at Columbus, in the county of Platte and State of Nebraska, haveinvented certain new and useappertains to make and use the same.

This invention relates to saw mechanism,

and more particularly to interchangeable drag and circular saws and means for operating the same.

the construction shown in Patent No. 622,709, granted to me April 11,1892, also to provide a device of this character which may be readlar-saw mechanism. 1 I

With the above and other objects in view, which will readily appear as the nature of the invention is better understood, said invention consists in certain novel features of conily transformed from a drag-saw to a circustruction, combination, and arrangement of parts, as will be hereinafter fully described and claimed, reference being had to the acw companying drawings, in which Figure 1 is a side view of the saw. Fig. 2 is a rear view of the same. Fig. 3 is a side view of amodified form of the device; Fig. 4 is a rear view of the same. l

comprising the vertical standards 3 rising from said brace and suitably braced thereto,

4 a horizontal cross-bar connecting the upper ends of the standards 3 and projecting beyond the sides of the same.

5 denotes a vertically-movablerectangular frame adj ustably supported between the vertical standards 3 by means of an upwardlyprojecting threaded. rod or bolt 6, whichis' adapted to pass through a guide opening-or hole, which is formed in the center of the cross-bar 4, and to receive upon its free end a threaded hand-wheel or nut 7, between which and thecross-bart is a bearing plate or washer 8. It will be apparent that by rotating the hand-wheel or nut 7 the frame 5 may be raised or lowered, but will not be prevented from having at all times a free vertical movement or play.

a i to the wheel 12 by a belt 15. The object of the invention is to improve 9 denotes a main drive-shaft journaled in the side pieces of the frame 5 and passing through guide-slots 3 formed in the standards 3. Upon one end of said shaftis keyed a combined fly and crank wheel 10, and upon the opposite end thereof is keyed a belt or band-wheel 12.

Y 13 denotes a counter-shaft, also journaled in the frame 5 at the lower end thereof, arranged parallel with and below the shaft 9, and upon the end of the shaft 13. Adjacent to the wheel 12 is arranged a smaller belt-wheel or pulley 14, which is connected The shaft 13 also passes through the guide-slots 3.

On each end of the shafts 9 and 13 outside the standards 3 are mounted blocks 16. The upper blocks on each side, or those on the shaft 9, are connected to the lower blocks on r shaft 13iby means of long threaded rods or bolts 17, arranged in pairs on either side of the shafts and passing through holes in the blocks 16 and held in place by nuts screwed on above and below the said blocks. The upper ends of each pair of rods 17 are connected by cross-pieces 18, to each of which is connected ,anupwardly-projecting rod 19, the said rods being adapted to pass through guide-openings in the projecting endsjof the upper cross-bar 4. The rods 19 are provided with perforations along the length thereof,

v v which are adapted to receive pins 20, between In the drawings, 1 denotes a base, 2 a frame which and the under side ofjthejprojecting ends of the bar 4 are arranged springs 21, coiled around the rods 19. The tendencyof the springs 21 is to force the frame 5 and the mechanism carried therebydown wardly and to yieldingly hold the same in this position, the tension of the springs 21 being regulated by raising or lowering the pins 20 in the per forations in the rods 19. i

22 denotes a crank-arm fixed on the extreme end of the shaft 13 adjacent tovthe beltpulley 14, and to the free end of the crankarm is pivotally connected one end of a pitman-rod 23, the opposite end of which is connected to a drag-saw 245.

25 denotes a forwardly-projecting beam or bar extending above the saw 24 and composed of two sections, an inner short section connected to the frame 5 and an outer secluu tion detachably connected to said inner sec justably connected. to the beam 25.

outer end of the beam 25.

which is fixed to the lever 26 and the opposite end of which bears upon the dog 28, as shown. By this means the log to be sawed is firmly held in position to be operated on.

30 denotes a presser-arm pivotally 3.1!(1F3- e outer free end of the arm 30 carries a grooved presser-wheel 31, which is adapted to be held in contact with the saw by a bowed spring 32, one end of which is connected to the beam 25 and the opposite end of which bears against the arm 30.

33 denotes a saw-guide comprising a depending arm 3- having an adjustable connection with a bracket fixed on the end of the beam 25, the said bracket being provided with a bolt which projects through a slot in the arm 34 and receives a thumb-nut 35, by means of which the said arm may be clamped in a raised or lowered position and is adapted to engage the outer face of the saw and prevent the same from wabbling.

36 denotes an operating lever or handle pivotally connected to the crank-pin on the fly-wheel l0 and by means of which said wheel is driven.

37 denotes small carrying-wheels journaled on axles fixed to the base 1, and 38 denotes a tongue. By these means the device may be easily moved from place 'to place.

39 denotes a shelf or table detachably connected to the base 1 and standards 3.

' In Figs. 3 and 4 of the drawings I have shown my machine geared to operate a circular saw 40. This is accomplished by attaching to the base 1 an auxiliary frame 41 and detaching the crank-arm 22, pitman 23, and drag-saw 24 from the shaft 13, and also removing the The outer end of the shaft 13 is adapted to bear in the upper end of the auxiliary frame 41 and to have keyed to its outer end the circular saw 40.

While I have shown the device as geared up for hand-power, it is obvious that I may readily fit the same for machine-power. When it is desired to saw down a standing tree, the machine is laid upon its side, saw down, in which position it may be operated to saw a tree off close to the ground. To get different lengths of stroke to the drag'saw, I may vary the length of the pitman-rod.

vFrom the foregoing description, taken in connection with the accompanying'drawings, it is thought that the construction and mode of operation of the saw will be readily understood, and it will be seen that the device is simple and easy to operate and readily changeable from a drag to a circular saw.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

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

1. In saw-operating mechanism, the combination with a frame comprising standards and a connecting cross-bar, said standards having elongated slots, of a vertically-adj ustable frame movable between the standards, a screw-stem projecting from the vertically-adj ustable frame through said cross-bar, a nut cooperating with the stern, saw-driving mechanism including driving and counter shafts in gear with each other, said shafts extending through said slots, blocks forming journals for said shafts, guide-rods upon which the blocks are adj ustably mounted, said rods being movable vertically in the cross-bar, and springs connected to the cross-bar and adjustably connected to the guide-rods to oppose a variable yielding resistance to the upward movement of the adjustable frame, substantially as described.

2. In drag-saw mechanism, a supporting element carrying a log-clam p, said clamp comprising a pivoted operating-lever provided with a fixed jaw, a movable jaw pivoted to said operating-lever and formed with rackteeth, and a spring-pawl pivoted to the lever and adapted to engage said teeth.

3. In saw-driving mechanism, the combination with a supporting-frame, of guide-rods adjustably mounted therein, driving and counter shafts in gear with each other, 'means for raising and lowering said shafts, means for adjustably connecting the same with the guide-rods, and means for opposing a variably-yielding resistance to the upward movement of the guide rods and shafts, substantially as described.

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

LOUIS PHILLIPPS.

Witnesses:

LoUIs HELD, JERRY F. CARRIG.

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