Track-sander for locomotives
US 752598 A
Description (OCR text may contain errors)
No. 752,598. PATENTED PEB. 16, 1904.
V .G. M, SGHWEND. t
TRACK SANDER yPOR LocoMoTIvBs.
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PA'IENTED FEB. 16, 1904I A TTOHNEYS.
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UNITED STATES PATENT OEEICE.
GEORGE M. SCHWEND, OF BIRMINGHAM, ALABAMA.
TRACK-SANDER FORV LOQOIVIOTIVES.
SPECIFICATION forming part of Letters Patent No. 752,598, dated February 16, 1904.
Application led June 22, 1903. Serial No. 162,595. (No model.) i
To all whom it may concern.-
Be it known that I, GEORGE yM. SCHWEND, a citizen of the United States, and a resident of Birmingham, in the county of Jefferson and State of Alabama, have invented certain new and useful Improvements in Track-Sanders for Locomotives, of which the following is a specication. i
This invention relates to a new and usefull improvement in track-sanding devices, and is designed particularly for use in connection with locomotives.
The object of this invention is to utilize water as a medium for effecting the discharge of sand from the reservoir or sand-box usually arranged upon the boiler of `the locomotive, the same being delivered upon the rails in front of or behind the driving-wheels for understood purposes.
The invention consists, further, in steamheating means intended for use during cold weather whereby the wet` sand in the reservoir or sand-box and also the sand in the delivery-pipes is prevented from freezing. The pipes for conveying water to the sand-box may be connected with any suitable supply-- as, for instance, the water-space in the boiler or the water-box of the tender. The sandheating means should have suitable connection with the engine adapted to receive dry steam and with the water-supply lead through the locomotive-tender with valves therein adapted, and whereby the iow of steam or water may be cut off or regulated, as will readily be suggested by the skilled in the art.
The invention comprehends in its broad sense peculiar sand-feeding means utilizing water whereby the sand is flowed from sandboX to the track-rails and peculiar heating means intended for use during cold weather vented the improved track-sanding apparatus, whichwill hereinafter be fullydescribed and the novel features pointed out in the claims.
In order to enable others to make and use my invention, I will now proceed to describe it in detail with reference to the accompanying drawings, which form a part of this speciication.
In the drawings, Figure l is a view illustrating my invention in use on a locomotive, the latter being shown in dotted outline. Fig. 2 is a transverse sectional view through the sand-box and contained apparatus. Fig. 3 is a detail sectional view of the T connection between the forward and back-up sand-delivering pipes; Fig. 4. is a top plan view of the sand-box with its cover removed. Fig. 5 is a bottom plan view; and Fig. 6 is a vertical sectional view taken at right angle to the view shown in Fig. 2, but with the cover removed.
In practicing my invention I may employ any conventional form of sand-box A, commonly arranged upon the boiler of a locomotive, as shown in Fig. l of my drawings. AA indicates any suitable cover having a reduced opening A2, closed by a cap A3, and a screen or sifter A4. The bottom of the sand-box is constructed with double-incline surfaces formed by the inner conical portion A5 and the outer upwardly-fiaring rim A".
Within the body portion of the sand-box A, near its upper edge, I arrange an annular tube B, having a series of perforations B' in its under side and made communicating by suitable connection with the water-space in the boiler or t/he tenderwater-tank through a pipe B2 B3,
ing from the locomotive-cab, and wherein it "is provided with a suitable cut-off valve, which will readily be understood.
G indicates a pipe in the sand-box coiled around, as shown, and having c nnection at its upper end with a pipe C', leadin,a from the locomotive-cab. The pipe C" is connected with the steam-space of the boiler and ispro- A vided with a cut-off valve located in the cab, which will readily be understood. The lower coil of the pipe C ends with oppositely-eX- tending branch tubes C2, having at their ends i Ff, to provide increased outlet thereat.
reduced nozzles C3, adapted to inject steam into the sand-outlet nozzles C4.
D indicates a branch water-tube leading from the tube B3 and having its delivery end D turned up, projecting through the apex of the cone A5, (see Figs. 2 and 6,) and providing support for a hood E. The front and rear lower edges ofthe hood E are elevated, ass at ee Figs. 2 and 6.) rlhe projecting end ofthe pipe D between the hood E and the cone A5 is provided with a series of perforatons D2, as shown in Figs. 2 and 6.
F indicates a suitable T connection between the sand-nozzle C4 and the tube G, adapted .to deliver sand in advance of the drive-wheels and the back-up sand-delivery pipe H, as
shown in Fig. l.
I indicates the delivery end of a steam-pipe leading from the locomotive-cab, wherein a suitable cut-off valve is located and at which point the said pipe I has suitable steam connection with the boiler. It will be noticed that the delivery end of the pipe I is con`v `Aviously the sand will be iiowed through the nozzle C4 into the T connectionF and thence by gravity pass down the sand-delivery pipe G to the track-rails in front of the locomotive drive-wheels. When it is desired to feed sand through the back-up delivery-pipe H, steam is passed through the pipe I to the T connection and injected in a thin iiat stream from the opening I across the inner space in the T connection and into the open end of the back-up sand-delivery pipe H, as indicated bythe arrows in Fig. 3 of my drawings.
The steam-coils C are employed for heating the sand in the boX A during cold weather and its lower branched injector ends C2 C3 adapted for injecting steam into the sand outlet or nozzle C* to prevent ,freezing therein of the wet sand.
It will be understood that water is turned into the sand-box only when increased traction is made necessary to obviate slipping of claim as new, and desire to secure byLetters Patent, is-` 1. A sander comprising the sand-reservoir, the sand-delivery, and a Water-delivery device by which to aid the delivery of the sand.
2. A sander comprising the sand-reservoir, the sand-delivery apparatus, whereby the sand in the reservoir, and also, the sand in the delivery, may be heated, and a water-delivery device by which to aid the delivery of the sand.
3. A sander comprising the sand-reservoir,
the sand-delivery, and a water-delivery located at the bottom of the reservoir, adapted to underwash and iiow the sand, to and through the said sand-delivery, substantially as described.
4. A sander comprising the sand-reservoir, the sand-delivery, and upper and lower waterdelivery, whereby the sand is washed and flowed to and through the said sand-delivery, substantially as described.
5. A sander comprising the sand-reservoir, the sand-delivery, upper and lower Waterdelivery, and a heating-coil ending with noz zles adapted to inject into the receiving end of the said sand-delivery.
6. A sander comprising the sand-reservoir, the sand-delivery, and a water-delivery employing a perforated pipe extending up suitably above the bottom of the reservoir, and a protecting-hood for the said water-delivery, substantially as described.
7. The combination with a sander-reservoir employing water as the sand-feeding medium, of front and rear sand-delivery pipes leading from a common outlet in the reservoir, and an injector in the common outlet adapted, in operation, to force the sand` therefrom into the said rear delivery-pipe, substantially as described.
8. The combination in a sander, of a reservoir, a water-delivery, front and rear sanddelivery, and an injector `adapted in operation, to force .the sand into and through the said rear delivery substantially as described.
9. The combination in a sander, of a reservoir, upper and lower water-delivery, front and rear sand-delivery, and an injector adapted in operation, to force the sand into and through the said rear delivery substantially Vas described.
10. The combination in a sander of a reservoir, front and rear sand-delivery, upper and lower water-delivery, a hood over the said lower water-delivery, a heating-coil ending with nozzles adapted to inject into the receiving end of the 'said front and rear sand-delivery, and an injector adapted in operation, to force the sand into the said rear sand-delivery substantially as described.
GEORGE M. SCHWEND.
J. L. BRENNEN, T. W. BOWERS.