US852573A - Mud-toe for traction-wheels. - Google Patents

Description

PATENTE) MAY 7, 1907. J'. MODONALD & P. H. MOBRIDB.

MUD TOE FOR TRAGTION WHEELS.

ABPLIUATION FILED APR.16.1906.

UNITED sTaTns TaTnnT enrich.

JOHN MODONALD AND FRANK H. MCBRIDE, OF BLAIR TOWNSHIP,

WASHINGTON COUNTY, NEBRASKA.

Specification of Letters Patent.

Patented May '7, 1907'.

Application led April 16, 1906. Serial No. 311,942.

To @ZZ whom t may concern.-

Be it known that we, JOHN MCDONALD and FRANK H. MCBRIDE, citizens of the United States, residing near Blair, in Blair township, in the county of Washington and State of Nebraska, have invented a new and useful Adjustable and Foldable Mud-Toe or Grouter for Traction-Wheels, of which the following is a specification.

Our invention relates to improvements in toe or grouter attachments for tractionwheels to increase their foothold on earth roads; especially to a toe or grouter that can be readily applied to the wheels of tractionengines now in use; and the objects of our improvement are first, to provide a grouter with an adjustable base to facilitate its attachment to the variously constructed traction-wheels now being used g and second, to supply foldable ytoes to project beyond the regular hired toes of the traction-wheel and that may easily and quickly be folded away from the tread of the wheel, without being detached therefrom, when they are not needed. Ve obtain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a perspective view of a portion of the rim and spokes of a traction-wheel with the foldable grouter attached and folded; Fig. 2, is an inside view looking from the hub toward a segment of the rim, showing the adjustable base of-the grouter attached, and Fig. 3 is a side elevation of the foldable grouter and toe separated from the base or attaching part.

Similar numerals refer to similar parts throughout the several views.

The treads of traction-wheels are usually provided with the toes 4, 4, etc., to cut into the path of the wheel to prevent slipping. On muddy roads or soft elds the spaces between these toes become filled with earth and thereby the toes become ineffectual. To overcome this slipping a less number of far-v ther projecting toes or grouters have been temporarily attached. These have generally been difficult to attach and necessarily removed in crossing wooden bridges or crosswalks which would be broken by the concentrated load on the toes of the grouters, which are placed farther apart than the regular toes, and consumed much time in attaching andddetaching. A We have overcome this difficulty by a construction in which the grouter proper is made a separate part hinged to an adjustable attaching base-part whereby the grouter may be turned to project from the tread of the wheel, as indicated by the broken lines 23 in Fig. 1, or folded within the body of the wheel entirely out of the way, as shown in the same view.

The attaching part consists of a body or stem 5 disposed centrally between the spokes 2 and 2 crosswise on the inner periphery of the rim 3 of the wheel. One end has the integral outward-turned hook 7 to engage the edge o f the rim, the point side of the hook overlapping the tread of the wheel. The opposite end has the inward projecting lug 13 perforated to receive the threaded legs of the U-shaped yoke 12 which is looped around the spoke 2 toward the vopposite edge of the rim. By the nuts 14 on the threaded legs of the yoke the attachment is adjusted to any width of rim and the hook 7 is drawn into fixed engagement with the edge ofthe rim and the attaching base held iirmly in' position. This base has the integral enlargement 6 to strengthen the base of the hook and carry the pintle 22 and also has the integral brace or strengthening rib 19 throughout its length as shown.

The foldable toe or grouter part consists of a bifurcate body having the parallel branches 16 and 16 united by a V-shaped base 17 terminating in the toe 18. The branches are perforated to receive the ends of the pintle 22 disposed through the enlargement 6 between the branches to hinge the parts together. The V-shaped base and toe are further strengthened and supported by the bridge or cross-brace 21, the bevel sides 9 and 9 of the hook which are impinged by the inner walls 17 and 17 and the outside 8 of the hook on which rests the edge of the brace 21 when the grouter is turned outward for service. The surfaces 8, 9 and 9 are curved, as shown, concentric with the pintle, so that the grouter swings to a perfect close seat thereon; and the notches 2O in the edges of the branches 16 engage the edge and tread of the rim to further support the grouter when in use.

The surface 8, of the point side of the hook which forms a seat block on the tread of the wheel for the grouter toe, is not higher than the regular toes 4, therefore, does not interfere with the ordinary use of the wheel.

IOO

' of thebase'v, serve to attach theI ends of the coil spring l5 which by its resilience retains the grouter in the folded position shownin Fig. 1. This spring yields to allow the toe 18 to swing around on the broken line 24 bringing the grouter to the position indicated by the broken; lines 23 Where it is again retained by the spring Which is thenf disposedacross and against the inner periphery of the rirn by which it is protected trein injury.r

I claiml.. A fold'able grouter for tractionwvheels having in combination an attaching base', a 1nudtoey hinged to said base andl a spring connected to retainv the toe extended or toretain it Jfolded up ony said' base 2. An adjustable attachingbase'vfor ay traction-Wheel grouter, having in` combinationha hookv to', engage the edge of the rim of the Wheel,l a Ussliapedyoketorengage'a spoke of they Wheel?, the legs of said yoke disposed through a1 lug on the body ofy the hook'` and nutsthreaded on said legs.

3. A foldable grouterattachment for tracti'oneWheel's having? in.i combination', an attaching base'With a hook to engage'the edge ot the Wheelerirn, a biiiircate grouter part having a V-shapedlbase-itted to straddle the overlapping point of thev hook to form a rnudtoe projecting from the tread of the Wheel, they grouter part having the ends of its branchespivoted to the base ofthe hook and adapted to swing the toe from its seat on the point side of the hook to the inside of the Wheel-rim.

4. -An adjustable and foldable grouter at-.

tachment for traction-Wheels, having in combinationy ak hook having a stem with an adjustable spoke-clutch, a mud-toe seated on the point side of said hook and hinged to the baseofthe hook to fold back` against the stem'f.

5.. All adjustable and oldable grouter attachrnent for traction-Wheels, having inI cornbination, a hook, a lug on thev stern ofsaid hook, a'. U-shaped yoke With its legs disposed through said lug, nuts threaded on said legs, a bifurcate grouter having the inside of its base shaped to straddleI and-iit on the pointsi'de of thehookf, and the ends of its branches pivoted to the base of saidhook, and a tensional spring connectedA between the grout'er andthe sternf ofsaidvhool.

JOHN MCDGNALD. FRANK H. MCBRIIDE.

Witnessesz' EARLl P'IPHER, v i S. W..R1oHARDs.-zk1

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