US1091997A - Ice-sawing machine. - Google Patents

Description

'G. Y. AKES.

ICE SAWING MAGHINE.

APPLIOATION FILED JUNE27,1912.

Patented Mar. 31, 1914.

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COLUMBI'A PLANOGRAPH CO WKSHINGTDN, D. :4

G. Y. AKBS. IGE SAWING MACHINE. APPLICATION FILED JUNE2'I,1912.

Patented Mar. 31 1914.

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COLUMBIA PLANOGRAPH CO..\VASH1NGTON. n, c.

G. Y. AKES. 10E SAWING MACHINE.

APPLICATION FILED JUNE 27,1912. 1 ,09 1 ,997', Patented Mar. 31, 1914.

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CHARLES Y. AKES, OF CUSTER, SOUTH DAKOTA, ASSIGNOR T0 MARY J'. TUBES AND MERRITT J. BAILEY, BOTH 0F CUSTER, SOUTH DAKOTA.

ICE-SAWING MACHINE.

Specification of Letters Patent.

Patented Mar. 31, 1914.

Application filed June 2'7, 1912. Serial No. 706,228.

To all whom it may concern":

Be it known that 1, CHARLES Y. Anne, a citizen of the United States, residing at Custer, in the county of Custer, State of South Dakota, have invented certain new and useful Improvements in Ice-Sawing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in ice sawing machines.

The principal object of the invention is to provide an ice sawing machine with a vertically swinging saw frame of novel construction.

Another object of the invention is to provide an ice sawing machine with an extensible guide for varying the width of the blocks of ice to be cut.

A further object of the invention is to provide an ice sawing machine including a main frame which is supported upon tractor wheels and a means of novel construe tion for raising said frame and tractor wheels above the surface of the ice to facilitate the turning of the machine when so desired.

A further object of the invention is to provide a novel driving means for the machine whereby the tractor wheels may be easily reversed or disengaged from the motor.

A still further object of the invention is to provide an ice sawing machine of the character described which is composed of a minimum number of parts, is therefore simple in construction, and is cheap to manufacture.

With these and other objects in view, the invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims may be resorted to Without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings: Figure 1 is a top plan view of an ice sawing machine constructed in accordance with my invention, Fig. a

is a side elevation thereof, Fig. 3 is a front end elevation, Fig. 4.- is a similar view but showlng the front end of the frame in an elevated position, Fig. 5 is a transverse sectional view taken on the line 5-5 of Fig. 1, Fig. 6 is a transverse sectional view taken on the line 66 of Fig. 1, Fig. 7 is a perspective View of the transverse runner, and Fig. 8 is a detail longitudinal sectional view on the line 88 of Fig. 1.

Like reference numerals designate corresponding parts in all the figures of the drawings.

Referring to the drawings, the machinecomprises a main frame which is indicated as a whole by the reference letter A, and this frame includes side sills 55, a front end sill 6 and a rear end sill 7, all of said sills being preferably formed of channel iron. Depending from the rear end of the side sills 5 are U-shaped runners 88, which are preferably formed from angle iron, said runners being connected together by means of braces 9-9.

Depending from the forward portions of the side sills 5 are suitable bearings which support a transverse axle 10, and this axle has tractor wheels 11l1 secured to its ends. Mounted on the rear ends of the side sills 5 are bearings 1212 in which is rotatably mounted a worm shaft 18. The ends of this shaft project beyond the bearings 12, and loosely mounted thereon are bearings l l14. Connected to these bearings are the ends of the U-shaped saw-supporting frame 15. A transverse arbor 16 is supported in suitable bearings mounted. on the legs of the frame 15, and this arbor 16 extends beyond the frame and has rotary saws 17 17 suitably fixed thereon. In order to protect the operator from the saw and also to prevent the saw from throwing the ice forwardly upon the machine, there is provided a pair of saw guards 18-18 which are suitably connected to the frame 15.

Suitably mounted upon the forward portion of the main frame is a motor B, which includes a crank shaft 19, and fixed on this shaft is a sprocket wheel 20, and trained over this wheel is a driving chain 21, said chain being also trained over a sprocket wheel 22 which is carried by a hub 23 of a clutch 2d (see Fig. 5) which is loosely mounted upon the worm shaft 13. lhe clutch 24: is adapted is fixed on the shaft 13, and thereby lock said clutch with said shaft. In order to actuate the disk 25, said disk is formed with a cam finger 26 which is adapted to be engaged by a cam sleeve 27 which .is slidably mounted on the shaft 13. This sleeve is actuated by an arm 28 of a bell-crank lever 29, said lever being fulcrumed at its angle, as at 30, to the rear end sill 7 of the frame. Connected to the other end of the lever 29 is one end of a link 31, andthe other end of this link is pivo-tally connected to a hand lever 32 which is fulcrumed upon a side sill 5, as at 32. It will thus be observed that as the hand lever 32 is shifted in a forward direction, the bell crank lever 29 will be swung upon its pivot, and as a result, the cam sleeve 27 will be shifted along its shaft 13 to engage the cam finger 26, and thereby actuate the expansible ring 25 to frictionally engage the clutch 24, and thereby locksaid clutch 24 to the shaft. As a result, said shaft will be driven through the medium of the chain 21 from the crank shaft 19. Fixed upon the shaft 13 is a sprocket wheel 33 which is in alinement with a sprocket wheel 34 mounted on the arbor 16. These sprocket wheels are connected by a chain 35. It will thus be observed that when the clutch 24 is locked to the shaft 13, the saw arbor 16 will be rotated.

In order to drive the machine forward, the worm shaft 13 is formed with a worm 36 which drives a worm pinion- 37 which is fixed on one end of a longitudinal shaft 38, said shaft being supported at its rear end in a suitable bearing 39. The side sills 5 are connected in the rear of the axle 10 by means of a brace 40, which is preferably formed from channel iron. This brace is formed with spaced slots 41-41 which are disposed on opposite sides of the forward end of the shaft 38. The forward end of the shaft 38 is supported in a two-part bearing 42 which is slidably supported longitudinally of the brace 40 by means of bolts 43-43 which operate in the slots 41. The extreme forward end of the shaft 38 terminates in spaced relation to the axle 10, and carries at its end a bevel gear 44 which is adapted to alternately mesh with spaced bevel gears 45 and 46 respectively which are fixed to the axle 10. In the normal position of the shaft 38, the bevel gear 44 is in its intermediate or inoperative position between the bevel gears 45 and 46. In order to shift the gear 44 to mesh with either of the gears 45 or 46, a transversely disposed arm 47 is connected at one end to the bearing 42, and has its other end pivotally connected, as at 48, to the lower end of a hand lever 49 which operates through a longitudinal slot 50 formed in the brace 40. This lever is fulcrumed as at 51, to a segment 52, and is provided with the usual locking pawl 53. It will thus be observed that as the lever 49 is shifted in either direction, the arm 47 will slide the bearing 42 longitudinally of the brace 40, and as a result, the forward end of the shaft 38 will be shifted a slight distance sufficient to cause the gear 44 to engage with either of the gears 45 or 46. Thus it will be seen that the machine is impelled from the crank shaft 19 through the chain 21, the shaft 13, through the-worm 36 and shaft 38 to the axle 10.

Inv order to swing the saw supporting frame 15 upwardly or downwardly, or to retain said frame in any adjusted position, the following mechanism is employed: An inverted U-shaped frame 54 has the ends of its legs suitably connected to the side sills 5 directly in advance of the worm shaft 13. A drum shaft 55 has its ends suitably supported for rotation in the legs of the frame 54, and fixed to this shaft is one end of each of a pair of cables 56, the other ends of said cables being fixedly connected to the connecting portion of the saw supporting frame 15. One end of the shaft 55 terminates in a crank handle 57 by means of which the shaft may be rotated to raise or lower the saw frame 15. In order to lock the saw frame in any adjusted position, a ratchet wheel 58 is fixed on the shaft 55 adjacent one leg of the U-shaped frame 54, and mounted on said leg is a pawl 59 which is adapted to be engaged by the teeth of theratchet wheel. hen it is desired to turn the machine, it is necessary to elevate the tractor wheels 11 abovethe ice, and in order to accomplish this movement, the following mechanism is employed: Secured to the forward face of the front end sill 6 are spaced pairs of guides 60-60 and 6161. A transverse runner 62 has upstanding arms 6363 secured to its ends, and these arms are formed on their outer face witha series of rack teeth 64, said teeth being disposed to form resultant lateral flanges 65-65. The arms 63 are respectively slidably mounted between the pairs of guides 60 and 61, said flanges 65 col'iperating with the guides to hold said arms against lateral movements, yet permitting of the vertical movement thereof. In order to raise or lower the runners 62, bearings 66-66 are fixed on the side sills 5 in advance of the front end sill 6, and these bearings support a transverse power shaft 67. Fixed on this shaft are spaced pinions 6868 which respectively mesh with the rack teeth 64 above described. In order to actuate the shaft 67, one end thereof is formed for operative connection with a detachable hand lever 69. It will be observed that upon rotation of the I hand lever 69, the shaft 67 will be rotated,

and through the medium of the pinion 68 meshing with the rack teeth 64, the arms 63 and consequently the runners 62 will be raised or lowered, as desired. In order to lock the runner in any adjusted position, there is provided a pair of links70 which are engageable over the upper ends of the arms 63 and are adapted to have interlocking engagement between the teeth 64 and the pinion 68, and thereby lock said arms against movement.

In order to guide the machine over the ice so as to cut blocks of uniform widths, the following mechanism is employed: Hingedly connected to one side sill 5 of the main frame, as at 7171, are laterally extending arms 7 2-7 2, and connected to these arms for longitudinal adjustment are extension arms 7373, the connections between the arms 7 2 and 73 being of the pin and slot type. Carried by the outer ends of the extension arms 73 is a longitudinally disposed guide rod 74: which is of angle iron construction and is adapted to engage in a previously made sawkerf, and thereby properly guide the machine, as will be readily understood. By means of the extension arms 7 3, the relative distance between the guide arms 74 and the frame A may be readily manipulated, and thereby cut blocks of different widths.

What is claimed is:

1. In an ice sawing machine, the combination with a main frame including side sills and a front end sill, of a shaft supported upon said side sills for rotation, spaced pinions fixed on said shaft, a transverse U- shaped runner having legs operable between the front end sill and the shaft, each leg being formed with rack teeth engageable with a respective pinion, and means connected to said shaft for rotating the latter to raise and lower said runner.

2. In an ice sawing machine, the combination with a main frame including an end sill, of spaced pairs of vertically disposed guides secured to the sill, a U-shaped runner having its legs slidably mounted between the respective pairs of guides, and means carried by the frame for raising and lowering the runner.

3. In an ice sawing machine, the combination with a main frame including an end sill, of spaced pairs of vertically disposed guides secured to the sill, a U-shaped runner having its legs slidably mounted between the respective pairs of guides, each leg being formed with rack teeth, a transverse shaft supported upon the frame, pinions fixed on the shaft and adapted to respectively engage the teeth of the runner, and means for rotating the shaft to raise and lower said runner.

4. In an ice sawing machine, the combination of a main frame, a worm shaft including a worm transversely supported for rotation upon the rear end of the frame, a saw supporting frame swingingly mounted upon the worm shaft, a saw arbor journaled in the frame, a driving connection between the shaft and the arbor, a motor including its crank shaft carried by the frame, a connection between the crank shaft and the worm shaft, an axle rotatably supported in the front end of the frame, a longitudinally disposed shaft supported by the frame, a worm gear fixed on the shaft for engagement with the worm, and a driving connection between the other end of the'shaft and the axle.

5. In an ice sawing machine, the combination of a main frame, a worm shaft including a worm transversely supported for rotation upon the rear end of the frame, a saw supporting frame swingingly mounted upon the worm shaft, a saw arbor journaled in the frame, a driving connection between the shaft and the arbor, a motor including its crank shaft carried by the frame, a connection between the crank shaft and the worm shaft, an axle rotatably supported at the front end of the frame, spaced bevel gears fixed on the axle, a longitudinal shaft rotatably supported by the frame, a worm gear fixed on one end of the shaft and engaging the worm, a bevel pinion fixed on the other end of the shaft, and means connected to the last mentioned end of the shaft for swinging the same laterally to engage the last mentioned pinion with either of the pinions of the axle.

In testimony whereof, I aflix my signature, in presence of two witnesses.

CHARLES Y. AKES.

Witnesses T. W. DELICATE, J. N. VALLENTHRIM.

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

Washington, D. G.

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