US1378901A - Conveyer - Google Patents

Description

W. ROBERTSON.

C'O-NVEYER.

APPLICATION man JULY 3, 1917.

Patented May 1921.

2 SHEETS-SHEET 2.

UNITED STATES WILLIAM ROBERTSQN, OF CHICAGO, ILLIOIS.

CONVEYEB.;

i Specification ofrLetters Patent.

Patented May 24, 1921.

Application ined Juiy 3, 1917. serial No. 178,488.

To all who/m t may cof/wcm:

Be it known that I, VTILLTAM ROBERTSON, ak citizen or' the United States, and a resident of the city ot Chicago, in the county of Cook and State of Illinois, have invented certain new and usefullmprovements in Conveyers; and l do hereby declare that the tollowing is a full, clear, Vand'eiract description of the same, reference being had to the aocoinpanying drawings, `and to the numerals of reference marked thereon, which form a part of this speeiication. l

This application is directed to thatcla-ss of mechanisms shown in my issued Patent No. 822,153, for material and cinder pit elevators, dated May 29, 1906.

rllhis invention relates to an improved type of conveyor' particularly adapted foruse in conveying and elevating ashes, cinders or other material'to a'car to receive the'same, as tor instance, at a'power plant station where ash handling is a considerable factor in the operation ol the plant. Many diiy ferent methods have been devised for handling the ashes or cinders at large power plants, and generally different types `are adapted for different installations according to the conditions or operation as well as situation o' the plant. This invention relates to that type ofconveying mechanism wherein la dump car is utilized-to receive the cinders when disposed on a track in a pit provided for the purpose, then elevated on the inclined track to dumping position to discharge thecinders for instance into a car on a siding.

It is an object therefore of this invention to construct a conveying system 'for handling ashes, cinders, or other material com"- prising an inclined track with a dump car adaptedto be operated thereon from a receiving position in' a pit to a dumping position over a railway car or otherreceiv-ing means, by suitable mechanisms provided for the purpose. v

It is also an, object of this 'inventionto construct a conveyer comprising an inclined track leading from-a pit toa point elevated Vabove the railway car, and equipped with a dump car adapted to be drawn from the pit to a position over the railway car to discharge the contents of the dump car thereinto, and with'a cylinder movable with respect to a stationary piston and provided with means connected to the carto haul the car upwardly on the inclined track andact as a counterweight therefor duringl return movement of the car to its receiving pit.

It is also an object of this invention to .construct av conveying system embracing an inclined track leading rom'a pit to a point above a railroad siding upon which a receiving car may be switched, and with a dump car mounted on said inclined trackadapted to bepulled upward from the pit to dumping position over the railway car by a movable pressure actuated cylinder moving with reference to a fixed piston, connected to operate said dump` ear, and acting as a counterweight thereforwhen the car is allowed to descend' to its initial position in the pit.

Itis iinally an object ot this invention to construct an Vimproved type of `conveying mechanism embodying a car movable upon an inclined track due to movement ofa cyl- 4inder which' acts as a counterweight'for the car, the cylinder movingwith'refereiice to a fixed piston under the control of valves governing the flow of fluid into the cylinder.

The invention (in a preferred form)y is illustrated in' the drawings and hereinafter more fully described.

ln the drawings: n Figure 1 is a side View partly insection and partly inelevation of aconveying device constructed according to the principles of my invention. l

Fig. 2 is an end view 'of the structure illustrating the movable power cylinder mounted therein.y

Fig. ,3 is a central sectional view taken through the power cylinder in a lowered position withy parts shown in eleva-tion. n

-I `ig. tis a top plan view of the power cylinder and its associated sheaves.

Fig. 5, is a detail section taken on line 5-5 of Fig. 3.

As shown in the drawings: g The reference numeral 1, indicates as a wholev an inclined track, the lower endk of which terminates ina pit 2, constructed beneath a railroad track 3, and the upper end of which is supported by an upright-V frame structure consisting of side uprights 4, with inner guide channel upright members 5, connected thereto by sway bracing 6, and further reinforced by transverse members where necessary. `Said track 1, is also supported intermediate the framework 45, and in the pit 2, by an upright frame stanchion 7. A small dump car 8, adapted to run upon the inclined track 1, is provided with iio the rails of the track 1, and leading upwardly therewith to near the upper end thereof and inclining` downwardly thereat asV clearly shown in Fig. 1. Thus when the car is drawn into the dotted line position shown in Fig. 1, the wheel 10, rolling downwardly on the bent end of the track 11, will cause the hinged bottom of the car to swing downwardly, thus dumping the contents of the car through the bottom thereof. The track rails 13, of a` railway siding are disposed between the stanchions 7, and the frame structure 4 5, so that a rail-- way car 111, may be switched into position beneath the inclined track 1, to receive the contents of the dumpcar S, as clearly shown in Fig. 1.`

Journaled at the upper end of the structure 4 5, between the guide members 5, are a pair of sheaves 15 and 16, respectively, and disposed to slide between said uprights 5, is a cylinder 17, provided withguiding lugs 18, on the exterior surface thereof at opposite sides at each end of said cylinder to engage with the `channeled guide framey members 5. Secured upon the upper end or" the cylinder 17, are bearing brackets 19, in which are journaled a pair of sheaves 2O and 21, respectively,.and secured to the upper end of the cylinder 17, and trained about the respectivesheaves 15, 16', 20 and 21, is a cable 22, the other end of which is provided with a yoke 23, in which is journaled a pulley wheel 24, which is engaged on a curved rod 25, secured at the front end of the dump car 8. Secured in upright position between the side channels 5, is a stationary pipe or pist-on rod 2G, which extends through a packing gland 27, in the lower end of the movable cylinder 17, and on its interior within said cylinder, is provided with a stationary piston 28. Just below said piston 2S, said tubular piston rod is provided with openings or apertures 29, for the admission of air or steam under pressure into said cylinder. Any suitable admission and release valve or valves may be connected to the lower end of the pipe line 2G, though none is shown, but.l since these types of valves are well known, it is not deemed necessary to illustrate the same.

The operation is as follows:

The normal position of the parts of the conveyer system is that shown in full lines in Fig. 1, that is, with the dump car 8, disposed' on the track 1, in the pit 2, and the cylinder 17, at the upper end of the frame 4 5. l/Vhen it is desired to elevate the dump car 8, to dumping position, steam or air under pressure is admitted into the cylinder 17, through the stationary piston rod 26, the steam or air flowing through the apertures 29, thereof, into the interior of the cylinder beneath the stationary piston 28, so that the cylinder 17, is caused to slide downwardly in its guides 5, thereby draw.- ing the cable 22, through the power reduction sheaves to elevate the dump car on its track, so that the fifth wheel 1Q, supporting the hinged bottom 9, thereof may swing downwardly at the curved end of the rail 11, permitting the contents of the dump car 8, to fall into the railway receiving car 14. The valve or valves controlling the flow of Huid into the cylinder 17, are then turned to release position to relieve the pressure in the power cylinder and the car 8, returns to its receiving pit by gravity, counterweighted by the weight-of said cylinder 17. y

I am aware that various details` of construction inay be varied through a wide lrange without departing from the principles of my invention, and I therefore do not purpose limiting the patent granted otherwise than necessitated by the prior art.

` I claim as my invention:

In a conveyer,a vertical cylinder, a piston in said cylinder, a hollow rod supporting said piston, an inlet from the interior of said rod into said cylinder just below said piston, a packing box in the lower end of said cylinder through which said rod passes, i

guides on the exterior of said cylinder and stationary vertical guideways coopera-ting therewith, sheaves supported on the upper end of said cylinder, `and cooperating sheaves supported above the first named sheaves by said guideways, and afcable 'working' over said sheaves whereby on admission of fluid under pressure into said hollow rod, the cylinder will descend and a pull be exerted on said cable.

. In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses. 4

wiLLiAMl RoBnnrsoN; VVit-nesses CHARLES W. HILLS, Jr., EARL M. I-IARDINE.

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