US1882945A - Snowplow - Google Patents

Description

0a. 18, 1932. L, Ross. 1 882945 sNowPLow Original Filed March 2, 1851 2 Sheets-Sheet l 0.1 s,1932. L. T. ROSS I 1,882,945

SNOWPLOW Original Filed March 2, 1931 2 Sh ets-Sh et 2 Patented Oct. 18,1932

UNITED STATES mm arose. or

PATENT OFFICE cns'runa, onxo, ass xenon 'm m lumen conronarrox, or cnnsrnnm, 01:10,; coarona'rron or 01110 snownow Original application ma mm, 1931,

19x1. Serial in vertical section and a shoe or runner in side elevation,

Fig. 3 is a detail rear sectional elevation'of a shoe.

In carrying out the present invention, there is provided a frame 2 which is to be mounted at the front of a motor truck and from which the plow, indicated as an entirety by the reference numeral 3, is carried. This supporting frame 2 carries an abutment bar 6 at its lower end and at its upper end there is provided a cross bar 7, ad'acent the ends of which are secured forwar ly projecting overhanging beams 8 from-the front ends of which braces extend downwardly and rearwardly to the base of the frame to which they. are secured. The front ends of the beams 8 are connected by a cross beam and brace 10 whereby a strong, rigid supporting frame is produced. At the rear of the frame, hooks or brackets 11 are provided at the upper end of the same and to these books or brackets are attached the upper ends of gu chains 12 which extend downwardly and rearwardly and have ,their opposite ends securely attached to the respective push bars 13 whereby the frame is effectually braced and held against toppling forward while, at the same time, they aid in supporting the ush bars. i

From the en s of the bar 6 extend elements which are connected to the plow. The plow comprises a blade or share 19, which ina be a single element extending the full width of the plow or a plurality of similar elements,

two being illustrated in the present drawings. As shown clearly in Fig. 2, the blade is beveled on both its side edges whereby either edge may be utilized as'a cutting edge, the blade being thus rendered reversible so that when one edge has become worn, the

opposite edge may be brought into use without loss of time required to sharpen the resting on the winding shaft 32 being mounted at one end Serial in. 519,519. Divided and um application ma December 4,

share. The plow also comprises a mold- A board 20 which extends upwardly and rear- ,wardly from the blade or share and has a concave front face whereby the snow raised, by the blade will be rolled over instead of being1 pushed ahead as a dead weight.

The mo board isalso set obliquely, as clear-= 1y shown in Fi 1, and projects laterally beyond one side 0 the propellin truck .or tractor so that a wide path will formed and the snow will be de osited at one side beyond the path in suc a manner that itwill not roll back onto the cleared space. The blade or share is secured upbn the front marginal portion of a connecting, late 21 the reared e of which projects un er the front edge 0 the moldboard'andis firmly bolted thereto, as shown clearly in Fig. 2. Secured to themoldboard and the connecting plate 21, by the same bolts 22 which 'oin the connecting late and the moldboar 23, t e front edge portion of whic projects under the connecting plate and the rear portion of which extends rearwardly at an angle to-the front portion, as shown at 24, and is secured to,the under sides of the several plowsupportin arms and braces whereby the moldboar will be very firmly supported and carried by the frame 2.

The moldboard is reinforced by sheet metal braces 28 set on edge vertically across the back of the moldboard and conformin to and welded to the moldboard am? to the push plate 24 so that avery rigid structure is produced, free 'of excessive weight, and

buckling of the moldboard is overcome. At the left or forward endof the moldboard is a landside 30 which projects forwardly beyond the face of the moldboard so that it will cut throughthe snow and thereby lessen thestrain on the forward end of the plow."

Mounted upon the top of the frame 2 and beams 8 is a gear case 31, a

is a ush plate therein said case and at its opposite end in a suit- 'able bearing upon the adjacent beam 8, as

will be understood upon reference to Fig. 1. This shaft 32 has spools 33 secured thereon, and cables 34 are secured to the respective s ools to wind thereon, said cables gassing members of the respective push bars and the ownwardly from the s ools to gui e pul-' s mounted'upon t e su porting arms jacent the moldboard and t en extending up to short chains 36 attached to brackets on the front of the frame 2 at the top of the same. A controllin shaft 37 is provided and extendsinto t e cab of the vehicle where it is equipped with a handwheel 38 whereby it may be rotated when necessary. The front end of'this controlling shaft or rod 37 is connected by a universal joint 39 with the-rear end of a short shaft 40 which extends into the gear case and is operatively connected with the winding shaft 32 through suitable gearing housed in the gear case, as will be understood.

At the rear of the moldboard, at or adjacent the respective ends threof, are runner frames 41 which are secured in any convenient manner to the adjacent supporting arm or to the push plate 24, as may be most convenient. These runner frames 41 comprise arallel members, as shown in Fig. 3, provided on theirinner opposed sides with downwardly and forwardly extending lugs 42 engaging in grooves 43 in the opposite sides of a runnerv or shoe 44. The rear end of each frame 41 is brid ed by an angle bar 45, threaded through whic is an adjusting screw 46 having its front endswiveled ina lug or bracket 47 rising from the adj acent shoe 44 near the rear end of the same. The screw is held in a set position by a lock nut 48 mounted thereon and adapted to be turned home against the bar 45, as will be understood upon reference to Fig. 2. It will be noted that the front ends of the shoes are tapered so that inclined the push bars in their set reis surfaces are provided onboth their upper and their lower sides, this formation not only facilitating the travel of the shoes over the snow and ground hut also permitting them immediately adgacent portion of the rear portions ofthe are.

A diagonal brace 67 extends between the outer or rear end of the plow and the ad- Z'acent push bar, its front end being pivotalconnected in any convenient.manner to t e ush plate 24, and the rear end being pivoteti in a clamp 68 which is firmly secured upon the adjacent push bar. This brace 67 serves to withstand the thrust upon the freeend of the moldboard and also cooperates with the supporting. braces to resist side draft of the plow which is spread equally through the entire length of the truck.

Having thus described the invention, I

claim:

'1. The combination with a snow p1ow,of runner frames connected thereto adjacent the ends of the same, each runner frame comprising spaced elements provided on their op posed inner faces with downwardly and forwardly inclined lugs, shoes disposed between said lugs and provided in their sides with grooves receiving the lugs, and means mounted on the shoes and the runner frames for adjusting the shoes downwardly and forward lly.

2. he combination with-a snow plow, of

runner frames secured thereto adjacent the F ends thereof and including parallel side memhers provided on their inner opposed faces with obliquely disposed lugs, shoes disposed between said lugs and having inclined grooves in their sides receiving the lugs, and adj ustin screws mounted in the runner frames an having swivel connections with the respective shoes whereby to adjust the shoes downwardly and forwardly.

In testimony whereof 'I afix my signature.

. LESTER T. BOSS. [1,. a]

to be adjusted close to the plow for firmly pads which rest upon the rear axle underthe rear springs. The push bars are of telescopic formation whereby they may be adjusted to the wheel base of the particular truck or tractor to which the plow is to he applied, the front member of thepush bar bein tubular, while the rear member is a soli rod having its rear-end held to and supported by the rear axle. The forward por tion of the push is suspended by crossed chains from the front springs of the vehicle running gear. To the rae nhers of "an after they have been adjusted, clamps are provided which encircle the rear ends cf the forward

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