USRE14754E - Samuel friedman - Google Patents

Description

s; FRIDMAN.;

SNOW MELTINGMACHlNE AND METHOD 0F OPERATING SAME.,

LAPPLICATION vFILED MAY 31.11918. 'Reissued Nov. 18, 1919.

en for' .Kur 'amue( Vas tank water containing a small percentage of vsalt or similar substance which will convert STATES" PATENT OFFICE.

SAMUEL FBIEDMAN, 6F NEW YORK, N. Y.

` snow-nimma anonimaL AND METHOD or OPERATING' sans.

led Ia! 81, 1918.

To all whom it may concern:

Be it known that I, SAMUEL FRIEDMAN, a citizen of `the'United States, and a resident of New York, in the county of 4New York and VStateof New York, have infvented certain new and useful Improvements in Snow- Melting Machines and Methods of Operating Same,- of which the following is a specimethod of operating said objects of the invention are? cation.

` My invention'relates to improvements in snow melting machines, and an improved 'i hines, and the improve upon the construction of snow: melting or snow removing machines' and die'method of operating the same so that the snow or ice can readily be removed `from the streets of cities' and converted into'a slush which can easily be removed from the machine ata very small use, o the accomplishment of the above objects, and to such others as may hereinafter appear, :the invention comprises means for. k:feeding snow, ice and the like to a tank which is arranged to receive from another the snow or ice into aslush and prevent the snow or vice as it mixes with the water in i drawings, and will then point out the novel conveyor 3- for sweepingy snow, 1ce or the.l

features in claims.

In the drawings: Figurel shows more or less diagrammatically a lon itudinal vertical section of'a machine em dying my invention. Fig. 2 shows a plan view of the .machine partly in section.

In the Idrawings .1 designates the receiv.v ing tank and 2 a chute having within it a like from the street .into the chute and thence conveying same up the chute to the tank 1,

which is arranged tohold a quantity of snow 0r ice dumped by the conveyer. From exgerience it has been found that it 1s` very di cult to turn' the snow lnto water by I means of heat alone, and it is also practically impossible to convert the snow or ice into a slush by dumping the snow or ice-into water; but 4I vhave found that if the snow or ice'is Application for reissue Serial No. 237,873. l v 1 sprayed with water which contains a small percentage of salt or analogous substance, the snowl or ice sprayed with salt 'water will readily turn `into slush and will not adhere together and form lumps as is the case when waterwithout salt is used.

In order to supply a suitable amount of Specication of Reissued Letters Patent. Reiggued Nov, 1 8 1919, 1 Original No, 999,445, dated A- uiust 1, 1911, Serial No. 602,181, led Januaryl 12, 1911.

saltwater t'o the receiving tank, a spraying tank 4 is provided, which is situated in the top of .the receiving tank 1, as clearly shown in Fig. 1. v'The tank 4 is provided in the present instance with two outlets at the bottom which are'v designated 5 and 6, through which the salt solution contained in the tank Ltis sprayed into the receiving tank 1 so as to come in contact with the snow or ice, which is Vdumped into the, receiving tank by the conveyer, and turn the same into slush. In the present instance, the outlet 5 is provided with a universal connection so that the outlet `can be moved in' di'erent directions, a rod 7 being provided for controlling the movements of the same.v The outlets are also provided with suitable vcontrolling valves 8 operatedl through the medium of suitable levers 9 and 10' by means of which the flow of the solution through the valves can be regulated. In the present instance the upper part ofthe spraying tank'et is provided with a supply box 11 which is pro-l vided Witli a door12, and is adapted to hold desired to increase the strength-of the liquid l inthe spraying tank 4.

The conveyer 3 used for delivering snow or ice totank 1, in the present instance comprises a plurality of plates 15 secured to an endless link chain or belt 16 the same being drivenby meansof an endless chain or belt 25. At its lower end, the chute 3 is provided with'a plow 17 adapted to scrape `salt 'o r other analogous substance 13 which up snow, ice, etc., from the street so that the same can be'engaged by the plates 15 of the conveyer as shown in Fig. 1. vIn lthe present instance the plow consists-of a fiat plate which is pivoted at its upper edge to the end ofthe chute 2 by means of a suitable hinge 18, the plow being heldin a vertical 4position by means of spring 19 con' nected to the same through the medium of the levers 2Q and 21 which are pivoted toplow will be Y snow or ice to thetank 1, whereupon the a inst the action of the sp gether at 22 as shown iii-Fig. 1. From the above it will be seen that if the plow 17 meets anobstructionsuch as a car track or the like the plow will be forced backward 19 until the o struction has been passed lw ereupon the sition. f

` From the above it will be seen that as the machine` is moved along the street by any suitable means, the conveyer will elevate the person operating the spraying tank-willper can be heated, suitable means 27 being promit the salt solution to be sprayed upon the snow,or ice in the receivin tomary for the o time. by means of a suitable tool which can be inserted.l throu h the door 31. When the tank'is filled wit slush the door 26 yat the backv of the tank is opened'and the slush .j permitted to run out, after' which the door 1s closed and j the tank again. vfilled with snowor ice which is converted into slush as before described. If desired, the tank 1 vided for this' purpose, but ordinarily -I prefer to operate the vmachine without the addition of heat.

While the invention has been described l withv particular reference to thedetails .of

construction and operation, the same is not to be considered as limlted thereto, as many changes ma be made and still fall within the scopeo the following claims.`

1. A snow removing apparatus com ris-A ing in combination a receiving tank, a c ute, means 1n said chute for conveying' snow to imity returnedto .its original poltank and con- .'verts the same into .a slus it being cusrator who stands'` upon the -stand 30 to stir the slush `from time to 0f-Maynas.

" 17SAMUEL*FRIEDMML` f said tank, anotherl tank arranged in proxto said receivin tank, -arranged to hold a salt solution, an means for deliverying said solution vto the receiving tank, as

and for the purposes set forth.

2. A method of lconverting snow into slushfoi` show removal purposes, which con'` sists inlmpartlng heat to the said snow and f also adding salt thereto and stirrin salt and said snow in a tank, and tereby preventing the yformation of caked'masses of snow.

.3. The method of converting snow intoslush,V for snow removal purposes which consists in mixing lthe s now.jin a tank with water and: salt and 'thereby Preventin the formation ofv caked masses .o

said

snowA wit outthe necessity for meltin .more than an significant l'proportion o the snow.

4.".,Themethod of converting snow into aV flowlng .slushffor snow removalv purposes,

which consists in treating the snow 1n a tank .by mixing'the snow with saltvand water and agitating thefsubstances until the snowv and salt and waterare so intermingled as to pre-l vent the formation of caked masses of snow cant proportion ofthe snow. v 5. A method of. disposing-'of street snow,

' which consists in gathering u the snow, de,-`

livering it to a tank and mixmg with it salt and water until the snow, without the melting of more than an insignificant:v proportionV thereof, has'l been reduced tothe condition. of a non-caking, flowing slush'andthen discharging saidl slush from sai tank..

:but without nielting'more than an insigniii- I' Signed at NewYork, N. Y., this 16th day v

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