US305992A - Oes of one-thied to geoege s - Google Patents

Description

(No Model.)

H. W. ANNIS & W. H. PARRAND.

SANDING ATTACHMENT-FOR LOCOMOTIVES. No. 305,992. 1 Patentd Sept. 30, 1884.

UNITED STATES PATENT rica.-

HENRY IV. ANN IS AND \VILIJIAM H. FARRAND, OF ROCHESTER, N. Y., ASSIGN- ORS OF ONE-THIRD TO GEORGE S. RILEY, OF SAME PLACE.

SANDING ATTACHMENT FOR LOCOMOTIVES.

SPECIFICATION forming part of Letters Patent No, 305,992, dated September 30, 1884. Application filed February 25, 188-1. (No model.)

To all whom it may concern:

Be it known that we, HENRY W. ANNIS and WILLIAM H. FARRAND, citizens of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented new and useful Improvements in Sanding Attachments for Locomotives, of which the following is a specification.

Our invention relates to improvements in that class of rail-sanding apparatus for locomotives in which a steam-pipe is employed, in connection with a sand-pipe, to produce friction enough to maintain the proper traction and prevent slipping of the driving-wheels on the rails when they have become slippery by wear, frost, or froni other causes, andthe object is to apply the sand from a sand-box directly at the point of contact between the wheels and the rails, and to moisten the tread of the driving-wheels and the rails, and cause the sand to adhere to them without the danger of said pipe freezing.

In devices heretofore employed for this purpose the pipes are apt to freeze in cold weath- 2 or and thus become inoperative, and said freezing is caused by the condensation of the steam, which forms ice, the gathering of moisture, and the gradual closing of the sand-pipe bythe sand sticking within its pipe, and by accumulation entirely closing it. I

To overcome these difficulties and furnish means for causing an unobstrnctedfiow of sand whenever it is required, our invention consists in producing a junction-piece or foot, to

3 5 which the sand and steam pipes are connected, having an enlarged steam, hot-air, or hot-waterheating-chamber by which the freezing of the sand-pipe is prevented, and at the same time to carry off any condensed water from the steam-pipe in a drip-gutter attached to said j unetion-piece.

It also consists in certain details of construc tion and arrangement of parts, as will be more fully described hereinafter, and more specifi- 4 5 cally pointed out in the claims, reference being had to the accompanying drawings, in which Figure 1 represents a side elevation of a pair of driving-wheels of a locomotive, showing our improvement connected therewith; Fig. 2, a front elevation of the junction-piece or foot. Fig. 3 is a longitudinal section of the same. Fig. 4 is a crosssection of the same 011 the line 0 x of Fig. 3.

In the drawings, A A designate the driv 5 5' ing-wheels of a locomotive, and B is the rail upon which they run. The sand-pipe O is connected to the ordinary sandbox, (not -shown,) and D, the steam-pipe, connected with the steam-space of the boiler, (not shown,) and both pipes are of the ordinary construction and proportions. These pipes are connected to a junction-piece or foot, E, which is located in close proximity to the point of contact between the wheels and rails. The sand-pipe is screwed into a socket, a, at the upper rear part of the foot, and the steampipe is attached to a nozzle, 1), in front by a nut, 01,, forming a swivel-joint, and made preferably of a spherical or conical shape, and it can by this means be readily detached when desired. The body of the foot is divided by a partition, and forms the two chambers 0 and d. The first chamber, 0, is a tubular passage, having its lower end cut obliquely, so as to form an opening, 71, of greater area than its diameter, for the free passage of the sand, and to prevent choking. The second chamber, (1, which is connected with the steam-pipe, hotair, or hot-water pipe, forms a steam and heating chamber of considerable capacity, and extends the entire lengtlrof the sand-passage and transversely half-way or more around said sand-passage, as shown in Fig. 4, and,by nearly or entirelysurrounding the same by hot steam, forming a heating-chamber for steam, hot air, or hot water. At the lower end or bottom of the heating-chamber is arranged an oblong opening or slit, 6, placed in an angular direction, so that a jet of steam issuing therefrom will strike the descending sand and force it toward the contact-point of the wheels and rails.v A drip-gutter, y, is placed in close proximityto the mouth of the steam-chamber, and serves to carry the condensed steam toward the side of the rails, and this is another important feature of our invention.

The foot may be made round, oblong, square, or of any other form desired, and the heating-chamber may be extended entirely around the sand-passage, if desired, excepting its mouth, as shown by the dotted lines in Figs. 3 and 4.

It will be readily seen by those skilled in the art that by this arrangement of heatingchamber of an increased capacity, the freezing and closing up of the sand-passage will be entirely Overcome and obviated. Byforming the outlet opening or mouth of the sandpassage of an increased area its clogging or choking will be prevented, and the sand-pipe is therefore always kept free and unobstructed.

By carrying the condensed steam sidewise of the rails it is out of the way and cannot form ice on the rails when the locomotive is standing still.

Having thus described our invention, what we claim isr I. In a rail-sanding apparatus for locomotives, a junction-piece having a heating'chanr ber partially or c ntirely surrounding the san d passage to prevent its freezing, substantially as described.

2. In a rail-sanding apparatus, a junctionpiece or foot to which the sand and steam, hot-air or hotwater pipes of a locomotive are connected, and forming a heating -chamber by which the sand-passage is heated and prevented from freezing, substantially as described.

3. In a rail-sanding apparatus for 1ocornotives, a junction-piece or foot to which the sand and heating pipesare connected, and containing a heating-chamber partially or entirely surrounding the sandpassage to prevent its freezing, substantially as described.

4. In a rail-sanding apparatus l'or locomotives, a junction-piece or foot to which the sand and steam pipes are connected, and having a sandpassage provided with an opening or mouth of larger area than its diameter, substantially as described.

5. In a rail-sanding apparatus forlocomotives, a junction-piece or foot provided with a heating-chamber surrounding the sand-passage, having an outlet-opening or mouth of larger area than its diameter, substantially as described.

6. The combination of a junction-piece or foot for a rail-sanding apparatus containing a heating-chamber and a sand-passage, and provided with a drip-gutter, substantially as described.

7. The combination of a junction-piece, E, containing a sand-passage, c, and a heatingchamber, (1, partially surrounding said passage, connected to a steam-pipe, D, and a sand-pipe, 0, all constructed and arranged substantially as described.

In testimony whereof-we have hereunto set our hands in the presence of two subscribing witnesses.

HENRY \V. ANNIS. IVILLIAM H. FARRAND.

Vitn esses:

J. M. DAYY, J AS. \V. GREEN

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