US1509761A - Sled brake - Google Patents

Description

Sept. 23, 1924. 1,509,761

X. LEGAULT SLED BRAKE Filed April 19. 1924 Inventor yzzz'vzj rie az/Zf Attorney Patented Sept. 23, 1924.

UNITED STATES XAVIER LEGAULT, OF DE LESSEPS, QUEBEC, CANADIL SLED BRAKE.

Application filed April 19, 1924.

To all whom it may concern:

' Be it known that I, XAVIER LneAULT, a subject of the King of Great Britain, residing at De Lesseps, Province of Quebec, Canada, have invented certain new and useful Improvements in Sled Brakes; and I do hereby declare that the following is 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 the same.

The present invention pertains to a novel braking device designed for use in connection with sleds adapted to carry a heavy load.

The principal object of the invention is the provision of a device of this character which comes automatically into operation as the sled accelerates in speed in descending an incline. The braking device consists of a pair of links having a slot and pin connection with the runners, there being a brake member also carried by the links and having direct connection to the draft tongue. As the rumiers tend to advance towards the tongue in the descent of a hill, the links are moved downwardly, and the brake carried thereby is driven into the road by the weight of the sled and its load.

A further object of the invention is the provision of a guiding device adapted to come into operation on inclines not sufliciently steep to require a brake. This device consists of guide members carried by the links which are brought into engagement with the road in the same manner as the brake. Should the incline become steepor or the speed of the runners increase, the guides are driven into the road and finally the brake engages the latter to arrest the movement of the vehicle.

The invention is fully disclosed in the following description and in the accompanying drawings in which:

Figure l is a side elevation of the device;

Figure 2 is a plan view thereof;

Figure 3 is a side elevation showing the position of the device in descending an incline;

Figure 4 is a side elevation showing the position of the device while being backed;

Figure 5 is a side elevation of a modified form; and,

Figure 6 is a side elevation of said modification in descending an incline.

Reference will now be had to these views ployed to designate corresponding Serial No. ?,738.

by means of like characters which are emparts throughout.

The numeral 1 indicates the spaced runners of the sled, each having mounted thereon a knee 2. A. bench 3 is laid across the knees, and a rod a extends rearwardly from the bench. To this rod may be attached a pair of rear runners or any other desired de vice according to the use to be made or the sled, in any manner well known in the art.

Through the forward ends of the runners is passed a rod 5 surrounded by a spacer 6. Links 7 are carried at the outer ends of the rod, each link having a slot 8 receiving the end on which it is mounted. The ends of the rod are provided with heads 9 disposed exteriorly of the links to prevent the latter from becoming detached.

Through the forward ends of the links is passed another rod 10, and this also is surrounded by a spacer 11. Secured to the roller is a web 12 from which extends a tongue 13 for draft purposes. Along the length of the roller 11 is secured a metallic scraper 14 as shown in Figures 1, 2 and lVhen the device is being drawn over a level surface as shown in Figure l, the links are disposed substantially horizontal, the scraper 14 being elevated from the surface. lVhen the device is descending a steep iii-- cline as shown in Figure 3, the runners l tend to advance towards the tongue 13 since the latter is held back by the draft animals. Consequently the links 7 are turned on the rod 10 as a pivot, whereupon the rod 5 engages the lower ends of the slots 8. The tendency of the runners to continue moving downwardly causes a downward pressure on the links, and the scraper 14 is thus brought into engagement with the surface. In this manner the downward movement of the head is checked and the latter is thus braked.

When the sled is backed, the links 7 turn on the ends of the rod 10 as pivots, and the roller 11 is displaced rearwardly of the roller 6 as shown in Figure 4;. If the sled is to be backed for a considerable distance, the roller 11 may be locked in this position by means of a link 15 attached thereto and adapted for connection to the bench 3.

In Figures 5 and 6 is shown a modification adapted for use on an incline not sutliciently steep to require braking. The links carry guides 16 at their forward and lower ends. As the device descends an incline as shown in Figure 6, the rod 5 moves to the forward ends of the link slots as described in connection with Figure 3. The guides 16 are thus driven into the snow and prevent the sled from slipping to the sides of the road. Should the incline become steeper or the runners 1 increase in speed, the links Will be still further depressed until the brake 14: engages the surface as already described in connection with Figure 3.

While specific embodiments of the invention have been illustrated and described, it is to be understood that various alterations in the details of construction may be made without departing from the spirit of the invention as indicated by the appended claims.

Having thus fully described the invention, what I claim as new and desire to protect by Letters Patent is 1. In combination with a pair of sled runners, a pair of links having sliding engagement therewith, and a braking device carried by said links.

2. In combination with a pair of runners,

a pair of slotted links slidably connected thereto, and a bra-king device carried by said links.

3. In combination with a pair of runners, a pair of slotted links slidably connected thereto, a rod passed through said links, a spacer surrouiuling said rod, a braking device attached to said spacer, and a tongue extending from said spacer.

4%. In combination with a pair of sled run- 11ers, a braking device comprising a pair of links having sliding engagement with the runners, a braking device carried by said link and guides formed on said links and citric from said braking device.

In combination with a pair of runners, a pair of slotted links slidably connected thereto, a rod passed through said links, a spacer surrmmding said rod. a braking device attached to said spacer, a tongue extending flOlll said spacer, and guides formed on said links and oll'sct from said braking device.

In witness whereof I have hereunto set my hand.

XAVIER LEGAULT.

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