US1070158A - Sled. - Google Patents

Description

G. B. MERCER.

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APPLICATION FILEDl AUG. 2B, 1912.

Patented Aug. 12, 1913.

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APPLIOATIONHLBD AUG. ze, 1912.

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CHARLES B. MER-CER, OF WEST PITTSTON, PENNSYLVANIA.

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Specification of Letters Patent.

Patented Aug. 12,1913.

Appication filed August 28, 1912. Serial No. 717,581.

To all fau/10m 2f may/ concern Be it known that 1, CHARLES B. MERCER, a citizen of the United States, residing at lifest Pittston, in the county of Luzerne and State of Pennsylvania, have invented new and useful improvements in Sleds, of which the following is a specification.

This invention relates to sleds and more par icularly to self-propelled sleds."

@ne of the principal objects of the invention is to provide suitable mechanism whereby the ordinary Irish mail runabout may be converted into self propelled sled.

A further object of the invention is the provision of novel means for throwing the propelling mechanism into and out of operative position so that the boy using the sled may initially start the same down a hill and then throw the operating mechanism out of action, whereby he can coast freely.

Further objects of this invention will ap` pear as the following specific description is read in connect-ion with the accompanying drawing, which forms a part of this application, and in which Figure 1 is a side elevation. Fig. 2 is a rear elevation. Fig. 8 is a top plan view with the seat shown in dotted lines. Fig. t is a detail vertical sectional view on the line 1 1 of Fig. 1.

Referring more particularly to the drawing, 1 represents the frame of the machine which is preferably constructed of separated bars 2 and 3 connected together at the forward end of the machine by a brace bar 4e upon which is pivoted the front runner frame carrying the skeleton runners 6. Between the shoes of the runner and the upper portions of the frame are vertical braces 7 constituting part of the frame and projecting laterally therefrom are foot pieces 8 by which the runners may be steered. The rear end of the frame is connected together by a shouldered axle 9 upon which the driving gear 10 is keyed. This driving gear lies in the center between the two bars 2 and 3 and is rotated by means of a crank or cranks 11 which are connected to the operating lever 12 by means of links or pitmen 13.

Extending up from each bar 2 and 3 arc seat supporting members 111 and 15, the former being provided with an angular de pending extension 1G having` a diagonal slot 17 arranged therein and adapted to receive for vertical movement a driven shaft 18.

This shaft 18 has keyed thereto between the uprights 141 a pinion 19 which is constantly. in mesh with the gear 10 irrespective of any adjustment of the shaft 18. The outer ends of the shaft 18 have secured thereto suitable driving` wheels or sprockets 2O which are adapted to be projected below the runners 21, as will be hereinafter described. These runners are supported upon uprights 22 and 28 secured to the under side of suitable battens 241 carried by a seat 25. These runners have diagonal braces 26 arranged intermediate the shoe of the upper portion of their skeleton frames and the braces are provided with slots 27 which are alined with lthe slots 17 in the extensions 16 and are adapted to receive the terminals of the shaft 18.

1n order to raise and lower the shaft 18 and thereby depress or raise the wheels or sprockets 2O to operative or inoperative positions, there is pivoted to the shaft 18 a pair of arms 28 which form one half of toggle levers, the opposite half being produced by the links 29 pivoted at their upper ends upon the uprights 14. Connecting the center of these toggle levers are links 30 which extend forwardly beyond the front of the seat and are connected to the lever 31 which is provided with an operating handle 32 at its upper end. In using the vehicle for coasting and like purposes, the lever 31 is pulled back to the position shown in dotted lines in Fig. 1 and the toggle levers operated so as to draw the wheels orsprockets 20 up beyond the shoes of the runners 21. By forcing the lever forward to the position shown in full lines, the toggle levers are straightened out, as shown, and the wheels or sprockets 2O depressed so that their toothed peripheries are projected below the runners and are in a position to engage the snow or ice. By manipulating the lever 12, as is customary, with the ordinary Irish mail runaboutthe wheels or sprockets 20 are revolved and the sled propelled thereby.

l/Vhat is claimed is 1. In a self-propelled sled, a frame, seat members extending vertically therefrom, a seat supported upon said members, runners supporting members depending from the seat upon opposite sides of the frame, runners thereon, steerable runners at the front of the frame, an adjustable tractor shaft slidably mounted in certain of the seat supporting members and in the first-mentioned runners. tractor Wheels thereon and means Vtor driving the shaft independent; of the adj 1 ist ment thereof.

2. In o sled, o frame, seat members eX tendine; vertically therefrom.y a sent sup? ported on Suid nleinbers, Certain of said seat supportlnp members depending` from the treme and being provided with slots, runner supporting` members depending from the sont on opposite sides of the frame, runners thereon provided with slots correspondingwith the slots in the seat supporting menihers, :L tractor shaft slidahl)r mounted in Said slots and carrying tractor wheels7 toggle levers adapted to raise and lower said shaft, means for operating the toggle levers und n'lenns for driving the shaft independentot the adjustment thereof.

In testimony whereof I ntix my sgnnture in presence of two Witnesses.

CHARLES B. MERCER. ltnesses MICHAEL CimLAHimf, THOMAS E. LINNEN.

Copies of this patent may be obtained for re cents each, by addressing the Commissioner of Patents. Washington, D. C.

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