US72928A - Improved snow-sweeper for streets - Google Patents

Description

WILLIAM SMITH, l v0F ILLINOIS.v` s v.lieg-tem .Patent No. 72,928, dated .December 3.1, 18x67.

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To ALL WHoM 1r-MnYJooNoERN= Be it known that I,'W`ILLIAM W. SMITH, of Chicago,'in the county of Cook, and State of Illinois,-hav= invented anew and 4improvedMachine for Sweeping Snow off the Streets and Railway-Tracks; and -I do hereby declare that the :following is a full and exact description' thereof, reference being had to the letters an gures of reference marked 11p-en the accompanying drawings,which forni` a part of this specification, in which- Figure 1 represents a bottom plan view of my sweeping-machine, 'showing clearly-its general manner of construction.

Figure 2 is a. side view, with the drivingwheels upon theside nearest to view removed.

Figure 3 is an end view of one of the brushes used in the machine,

, Figure 4 is a section 'of' one of the brushes, taken at voneofth'points where the wire. portion is inserted.

f The nature ofmy invention consists in the arrangement of a series ofeircular brushes, revolving in a. line .atright anglesto the 'street' or railroad-track, upon -which'the'whole machine is moved forward, and, by the action of said brushes, causes the snow to be removed from the track or street and deposited upon the side of the way; also, the peculiar combination of mechanical vparts for communicating power to the brushes fromthe 'driving-wheels also, the arrangement of llevers and other devices for throwing the machinery in and out of gear. To enable those skilled in theart 'to make and usem'y invention, I will describe itseconstruction and operation.

A is tbe-platform, tofwhich I attach car-wheels, B, also', spurjgear, 1, 2, 3, 4, ,5, and mitre-gears, 6 and 7, to which are connected, by 'means of the universal joint lC and shaft D, the brushes E, which are arranged, as shown in iig. 1, upon either end of the'platform A, and in a. line parallel tothe forward movement of Said platform, and, being arranged in this way, each brush upon the left being in advance-of each right-hand brush,

in order that they' may sweep every inch of ground, and not clash with each other. I arrange the brushes in this way'to the number of vo upon each end ofthe platform, which number may beincreased or diminished 'whonit is desirabletoswccp a widcrvor narrower breadthwcf track. F Farc yokes, through which shafts 'D are lpassed and rigidly confined, 'so far 'as lateral 'motion is concerned, but allowing the shafts D freedom to `revolve,`also to be elevated,'as shown upon the leftin iig. 2'. G G are also yokes, through which. rods Haro' passed, underneath the shafts D, and are connected to eccentrics,jI, by chains, K. Eccentrics I are attached to shaft L, and are operated by levers M, as also shown np'on the left in-iig. 2'. The lever M, being forced down and confined-underneath catch N,v\yhich causes tho thick side of the eccentric I to press. against the chain K, and thereby cause the brushes E to assume and retain an elevated' position, when it is desirable for them not t'o bein use., as, for instance, when the motion of the platform assigns their position to be at' the rear end. Wheels 3 3 are loose upon their shafts, and -are made to communicate power by means ofthe clutches O, which are thrown in and out of gear' by means 'of-the 'levers P. When thc brushes upon the rear end of the platform are thrown out of gear and elevated, the power of the rear driveewhccls is transmitted to' the front-by means of 4theUspu'r-whecl 1, and in thislway the whole frictonal power of the driving-wheels is utilized in a'll'cases, whether the brushes are revolving from one only or from both-ends ofthe platform. -BrushesE may be conetructed of any material capable of forming a stili' and substantial brush. I prefer spring-wire, and believe it tozbe-tbelmost suitable. I insert the wires into holes bored into the hub ofthe brush, and screw-thc cap S` down upon "them, as shownin fig. 4, and 'in this way prevent the possibility of their boing thrown or drawn'out whilein usc. f l I* i A l 4Having thus describe myvinvention, what I claim as new, and desire to secure by Letters Patontof the Unite'd States, isf V I 1. The range of brushes E, mounted on shafts- D, with u-niversztljonts C, iri combination'with the yokes vRall arranged and employed as and for the purposes specified.

2.' The-:construction of the brushes E, 'by setting-their wies in holes in the brush-heads, and securing them with capsS, appliedos represented and described. l i I 3. The lever M, ehain`K eccentric vLand rod H, in combination, as and for the purposes specified. 4. The whee l1,i1'1 combination with wheels 2 and 3 and clutch O, for the purpose of transmitting the power from one tothe other series of brushes, as set forth.

' WILLIAM -W. SMITH.

Witnesses G. W. KING, GEo. M. STERNE.

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