US926666A - Ice-cutting machine. - Google Patents

Description

L. M. MAGY.

ICE CUTTING MACHINE.

APPLICATION FILED MAR 12. 1906.

Patented June 29, 1909.

. in position.

LUNA M. MACY, OF ADEL, IOWA.

IOE-CUTTIN G MACHINE.

Specification of Letters Patent.

Patented June 29, 1909.

Application filed March 12, 1906. Serial No. 305,609.

To all whom it may concern:

Be it known that I, LUNA M. MAOY, a citi zen of the United States, residing at Adel, in

the county of Dallas and Stateo Iowa, have invented a certain new and useful Ice-Cutting Machine, of which the following is a specification.

The object of my invention is to rovide an ice cutting machine of simple, duraole and inexpensive construction and also to provide improved guiding, adjusting and propelling devices for machines of this class.

My invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained; as hereinafter more fully set forth, pointed out in my claims and illustrated in the accompanying drawings, in which- Figure 1 shows a plan view of an ice cutting. machine embodying my invention. Fig. 2 shows a side elevation of same. Fig. 3 shows a detail, sectional view on the line 33 of Fig. 1. Fig. 4 shows a detail end view of one of the guiding and supporting runners, and Fig'. 5 shows a perspective view of the means for adjustably supporting the propelling wheel shaft.

Referrin to the accompanyim drawings, I have used the reference numera to indicate the machine frame, preferably made of structural steel. Near its rear end is a platform 11 and on the platform is an electric motor 12, on .the shaft 13 of which is a sprocket 'wheel 14. The rear end of the frame is supported upon two mating runners, each comprising a block 15 and a flat runner base 16 with its front end turned up at 17, and its rear end turned u at 18. On top of the blocks 15 is the cross race 19 secured to the blocks 15 and rigidly holding the runners On top of the cross brace 19 are two brackets 20 to receive trunnions 21 connected to the frame 10, so that the frame may tilt upon the runners. The forward end of the-frame 10 is depressed as shown and supported upon a runner 22.

Mounted inbearin s 23"near the forward end of the frame 10 1s a shaft 24 upon one end of which I have fixed the circular saw.25.

This saw is arranged on a line exactly midway between the blocks 15 of the runners, for purposes hereinafter made clear. I have arranged for rotatin the shaft 24 as follows: Mounted in the mac 'ne frame in the rear of the shaft 24 is a shaft 26 connected with the shaft 24 by means of the sprocket wheels 27 and 28 and the sprocket chain 29. The said shaft 26 is driven by means of a sprocket wheel 30 fixed thereto and connectedby a sprocket chain 31 with the sprocket wheel 14 mounted on motor shaft 13.

- I have provided for'propelling the machine either by hand or by power from the motor as follows: Fixed to the rear of the machine frame are the handles 32, by which the frame may be pushed by an operator.' If it is desired to propel the machine by power from the motor, I provide a shaft 33 fixed to the machine frame and geared to the shaft 26 by the pinions and 35. Projecting laterally from one side of the platform 11 is an arm 36. The outer end of this arm is fixed to a brace 37, which brace has its rear end fixed to the trunnion 21 in one of the brackets 20. This brace 37 supports one end of a rock shaft 38. The other end of which is supporfed upon bracket 39 on the frame 10. Fixed to the rock shaft 38 on the end adjacent to the brace 37 is an arm 40 and fixed to the other end of the rock shaft 38 is an arm.41. Connected ,with the arm 41 is a lever 42 designed to extend laterally and'to engage a pin 43 to limit its downward movement. Pivoted to the arms 40 and 41 are the links 44 and 45 whichsupport the rotatable shaft 46. This shaft is also supported by arms 47 and 48, the latter being pivoted to the forward end of the brace 37 and the former pivoted to the shaft 33. On the ends of the shaft 46 arethe toothed drive wheels 49 arranged outside of the runners. The shaft 46 is driven b means of the sprocket wheels 50 and 51 connected by the sprocket chain 52. Hence, when the motor is runnin both toothed drive wheels will be rotated in a direction to advance themachine and they may be quickly and easily thrown to an elevated position out of engagement with the ice surface by means of the lever 42. On each of the runners, I. have pivoted two guide levers 50, the rear one having a handle 51 and each having its lower end designed to enter a saw cutin the ice and also capable of being elevated to a position above the ice, each pair of guide levers is connected b a rod 52 whereby they may be raised and owered n unison. p

In practical use with this form of my invention, I first start the motor and when the saw is operating 1' carefully guide 'it in a straight line to make an initial cut through the ice in a straight line. Atthe end of the cut, the machine is turned around and the levers 50 on one of the runners are placed in said cut. Then when the saw is again 0perated and the machine is again advanced, it will be accurately guided to form a second out exactly parallel with the first without any attention on the part of the operator, as the levers 50 will hold the machine accurately in the out first made. By having the saw arranged equally distant from both run-- ners, the machine may be turned around from both ends of the cut and returned With the saw always on the side toward the uncut ice and one or the other of the runners will be in position With its guide levers in the last made cut. In this way no steering device of any kind is necessary and no device for scoring the ice is necessary because the machine is guided by the lastmade out and the saw cuts completely through the ice each time that it is run across the ice and the cakes of ice are cut of uniform Width.

Having thus described my invention, What I claim and desire to secure by Letters Patent of the United States, therefor is 1. An ice cutting machine comprising spaced apart ruripers, brackets carried by said runners, a frame pivotally mounted in said brackets and having its forward end depressed, said frame being provided With a lateral extension, a traction shaft having eeeeee one end supported in said extension, a rock shaft parallel with said traction shaft and connected with the latter to raise and lower the same, means for operating said rock shaft, and a cutting device carried by said frame.

2. An ice cutting machine comprising spaced apart runners, brackets carried by said runners, a frame pivotally mounted insaid brackets and having its forward end depressed, said. frame being provided with a lateral extension, a traction shaft, swinging supports therefor, one of which is carried by said extension, means for raising and lowering the free ends of said supports, and a cutting device carried by said frame.

3. An ice cutting machine comprising spaced apart runners, brackets carried by said runners, a frame pivotally mounted in said brackets and having its forward end depressed, said frame being provided with a lateral extension, traction shaft, swinging supports the 'efor one of which is carried by said extension, a rock shaft, links connecting said rock shaft and saidtraction shaft,

means for operating said rock shaft, and a cutting device carried by said frame.

Des Moines, loWa. February 22, 1906 LUNA M. MAOY.

Witnesses J. RALPH Onvvre,

JULIA B. SMUTNEY,

Images