US75979A - Improved bailwat snow-plough - Google Patents

Description

'instea of from only one side thereof, for when the @man strut @Hire ELISHA ROBBINS, OF WORCESTER, MASSACHUSETTS.

Letters Patent No. 75,979, dated March 24, 1868.

IMPROVIID RAILWAY SN OW-PLOUGB.

TO ALLPERSONS TO WHOM THESE PRESENTS MAY COME:

Be it known that I, ELISIIA ROBBINS, of the city and county of Worcester, and State of invented a new and useful or improved Snow-Plough or Excavator, cleaning itrof snow.; and I do hereby declare the same to be fully d represented in the accompanying drawings, of which- Figure 1 is a top view, l

Figure 2 a side elevation,

Figure 3 alongitudinal section,

Figure 4 a frontend elevation, and

Figure 5 a transverse section of it. t

In-sueh drawings, A'denotes a plough or tunneller, supported by means of two or more axles a a, having two wheels, b b,`to each, the same being to enable the tunneller to run upon the trackfrails ofa railway. The front end ofthe said tunnellerA is to be formed in'manner as represented in figs. 3 and 4, that is, with 'cutters c .c c c, so as to eut the snow from the rails, or cut a trench'tiirough it, which shall be horizontal at bottom, and have 'either vertical or flaring sides. The mouth of the tunnelle whichis one or more lateral deilectors or ploughshares e e, arranged so as to discharge laterally any snow which may be driven back against them, or against which such dellector or delectors may be forced. Auxiliary 'deileetors or .ploughsharesfj arranged on the upper "surface of the tunneller, in manner as exhibited in the drawings, serve-to deflect laterally any'snow `which may pass over the top of the tunneller, and be liable to fall therefrom in front ofthe main deilector or deilectors. A shaft, B, arranged concentrically and in other respects with the cylindrical part or bore of the tunneller, in manner as represented, has a twisted blade or auger, C, extended from it through and beyond .the tunneller, in manner as shown in the drawings. This auger extends through and is xed to a tube or hollow cylinder, D, which on its external surface is supported against one or more friction-wheels, g, arranged in the tunnellcr. The tube serves to direct the snow to the de it from being thrown against lthe bore of the tunneller while thc auger isv'in revolution. or tube is to prevent the friction ofthe snow against the bore, retard the-rotary motions of the auger. For putting the au around which, andl another pulley, z', on another shaft, c, m, fixed on the shaft lc, engageswith another such gear, n, fixed on the rear axle of the'tunneller. Thus, when the said axle is in revolntion,lthe auger will be revolved. The said augen-however, may be revolved by other means, that is, it'may be operated by a steam-engine, or other proper mojtor applied to the tunneller, or by th power of the locomotive-engine used in driving the tun'neller ahead on a railway. j

When the plough or excavator is to be used, itmay be driven forward by and in front of a locomotive-engine,

to be used on a railway for the purpose of escribed in the following specification, and' The objectI of the director ger in revolution, it has a pulley, It, on its shaft, an endless chain or band,`Z, travels. A bevelled gear,

Massachusetts, have' r opens from a cylindrical throat, d, in rear ofl ectors, and prevent l which would otherwise take plaoe and operate to or it may have a steam or other mover fixed directly on it, and applied to its outer shaft and axllso as to effect the rotary movements of both or each, as circumstances may require.

The excavator, when driven forward into a mass of snow on a railway, will bore into and channel through it and raise it, and deflect it laterally off the track.- v

the excavator off the track in one direction will be counterbalanced by that operating in the other. This excavator, while advancing, will not only bore into but cut its way through the snowi Y I am aware of` the excavator described in the United States Patent', No. 44,360, and therefore make no arranged to operate against it so as iso-deflect rperforins the function of boring only. nd the auger or-borer C, arranged as set forth.

, he auger vor borer C, and' one or more deilectors, e e, arranged so as to discharge the snow laterally from 'the auger, as specified.

claim thereto, such being a snow-plough, with certain rotary clearers the snow in lateral directions. In my excavator, the auger or bore 2 I also claim the combination and arrangement of the auxiliary deector or deiectors ffof tbe fop of the tunneller with the saidtunneller, the rotary auger, and' tbeother deector or deectors e e, arranged as speciiefi. I also claim the oombination and arrangement of the anti-friction-tube D witnthe auger C,'ti1e tunnciiori and one or more deflectors, arranged in rear of tbe said tube. I,

I also claim the combination of one or more supportingfwbeeis g with the auger-tube D, the tunneller, and on or' more deetors e, as spcified, such roiies being forlsupporting the tube whl in revoiution.

ELISHA ROBB'INS Witnesses: l

` R. H. EDDY,

F. P. HALE, Jr.

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