US506645A

US506645A - Track-sanding apparatus

Info

Publication number: US506645A
Authority: US
Publication date: 1893-10-10
Anticipated expiration: 1910-10-10

Description

(No Model.) 4Sheets-Sheet 1.

" C. W. SHERBURNE.

TRACK SANDING APPARATUS.

No. 506,645. Patented Oct. 10, 1893.

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(No Model.) A v 4 Sheets-Shet 2. G. W; SHERBURNE. TRACK SANDING APPARATUS.

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0. W. SHERBURNE. TRACK SANDING APPARATUS.

No. 506,645. Patented 0013.10, 1893.

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o. w. SHERBURNE. Y TRACK SANDING APPARATUS. No. 506,645. Patented Oct. 10,1893.

L A \M'rplssaa UNITED STATES PATENT OFFICE.

CHARLES W. SHERBURNE, OF BOSTON, MASSACHUSETTS.

TRACK-SAN DING APPARATUS.

* SPECIFICATION forming part of Letters Patent No. 506,645, dated October 10, 1893.

Original application filed January 3, 1893, Serial No. 457.976. Divided and this application filed August 2, 1893- Serial No.

' 482,162- (No model.)

To all whom it may concern:

Be itknown thatI, CHARLES W. SHERBURNE, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Track-Sanding Apparatus, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in explaining its nature.

This invention relates to the combination of the air valve which actuates the track sanding apparatus with the engineers valve and with the air supply from the air brake system, and to the details of construction of such an apparatus.

The application is a division of application Serial No. 457,975, of January 3, 1893, and is made for the purpose of taking out of interference those matters of invention in the apparatus hereinafter described which are not claimed by the claim put in interference, and, the descriptive part of the specification is substantially the same as the descriptive part of the former specification referred tol In the drawings,Figure 1 is a side elevation of a locomotive carrying this apparatus. Fig. 2 is a side elevation of the engineers valve showing its connection with the valve of the track sanding apparatus. Fig. 3 is a detail which shows the manner of combining the valve stem of the air valve of the track sanding apparatus with the engineers valve. Fig. 4 is a horizontal section of the valve of the track sanding apparatus showing pipes in elevation and showing also engineers valve in plan. Fig. 5 shows an attachment to the ordinary engineers valve by which such an apparatus may be worked without changing the handle of the engineers .valve. Fig. 6 is a top plan of a modified form of the track sanding air valve of Fig. 4, and Fig. 7 is a vertical section of the same. These figures show how the track sanding air valve may be operated by hand without moving the engineers valve.

Like letters denote like parts in all the figures.

A is the locomotive. B is its cab, and O is a sand box. 0 is the connecting rod of the lever usually employed to operate such sanding valves of the track sanding apparatus. The sanding pipes are in the usual form and extend from the sand box 0 to the front of the driving wheels. dis the air pipe leading t0-the sand valves or sand barrel by which and through which the supply of air driven sand is furnished to the track sanding pipes. All these parts are of usual form and need not be further described.

e is the air pipe leading from the air reservoir F to the engineers valve, and f is the air pipe of the train line.

The track sanding apparatus and engineers valve are shown in sketch at G. The details of this apparatus shown at G are illustrated in the valve figures.-

Fig. 2: d is as before the air pipe conveying compressed air to the train line. 9 is the engineers valve, and it its handle. H is the bracket which supports the engineers valve from the head of the boiler.

c Fig. 4 is an air pipe leading from the housing forming a part of the engineers valve, into which housing the pipe e enters. This housing being continuous with pipe e, Fig. 1, is lettered e in Fig. 4.. A cylinder I of Fig. 4. is furnished with a diaphragm 'i, in which diaphragm is a valve seat, to which valve seat a valve 2' is fitted. The stem of this valve goes through the cylinder head next to the engineers valve, and the air pipe 6 goes through the cylinder head farthest from the engineers valve. Inside of the cylinder I is a neck through which a channel 1:; is made, to which channel the pipe at is adapted,which pipe at leads to the sanding device.

I have already described in the previous patent several devices for employing the air blast in connection with the business of track sanding, and either one of these may be emin opposition to the air current. The handle h of the engineers valve is provided on its. end, where it engages with the stem of said valve, with a cam h, as shown in Fig.4, and this cam pressing against the end of the valve stem 71 will throw the valve off its seat asthe handle it is moved from right to left, and the. pressure of air will re-seat the valve as the handle is moved from left to right.

The drawings in Figs. 2, 4 and 5 are too small to show the detail of the device for engagingv the valve stem i with the cam on the engineers valve, and therefore, this detail is .simply lettered in thosefigures. In order to understand the construction of this terminal of the valve stem, Fig. 3 has been made. In that figure 2" isthe piston rod. Z is a cap fitting on the end'of the piston rod, and Z is a slot in said cap. Z is the head of a pin'or screw which goes through said slot and into the piston rod, and prevents the cap 1 from being readily detached. Upon the side of the piston rod is placed an eccentric m, which has a handle on it m. By turning this eccentric so that its fat side is toward the cap Z, the piston rod becomes virtually lengthened, and therefore able to engage the eccentric h on the engineers lever 71; and by turning it so that its lean side is toward the said cap, the eccentric will not engage said cam. In order however, that the valve may be worked by the engineer and without working the engineers valve, it would be desirable to make the eccentric with such a throw that when the valve was on its seat, the thin side of the eccentric-should be against the cap I, and by turning the eccentric so that the fat side pressed against the cap 1, the cap would be driven out against the long part of the cam h and the valve i thus lifted from its seat.

In order to provide an easy way of converting the present engineers valve lever into a valve lever with a cam to it, without throwing away the lever, I make a frame which is shown in Fig. 5. This frame hooks at it upon the lever handle h. The part n goes over the top of the handle, and a branch at right angles n goes down at the handle to about abreast of the stem of the engineers valve. At this point a semi-circular part a is hinged which lies close to the end of the spindle or which can be raised out from it at its outer end. This is provided by hinging to the outer end of the semi-circular part 07, a handle n which is provided with the small eccentric n, which when turned round against the side of the lever h, allows the semi-circular part n to lie close against the end of the lever; but when thrown out to the position shown in Fig. 5, or a little farther, throws the outer end of the semi-circular part n away from the end of the handle h, and thereby converts the end of this handle into an eccentric such as is shown in Fig. 4. This detail is simply a method of forming the eccentric shown in Fig. 4 at h, and it is a detachable eccentric end to the engineers handle. Of course, instead of making the cap of the valve stem Z a cap to go outside of the valve stem, as shown in the previous figures, and instead of having it adjustable to and fro by an eccentric, it is obvious that it may be made in the form of a screw, and be adjusted by turning the rod. Ofcoursealso, the moisture trap which is combined with the valve hitherto described, as shown in Fig. 2 at M, where the sides of the moisture trap are broken away, may be of somewhat different shape than is here shown. Such a modification is shown in Figs. 6 and 7. The pipe leading from the source of air supply marked 6 in the other figures would be attached to the neck, also marked 6 in Figs. 6 and 7, and the pipe leading to the sand box of thetrack sanding apparatus would be attached to the neck marked d in Fig. 6. These .necks, which really constitute mechanical parts of the pipes screwed into them, being simplyportions of the conduit leading to and from the valve have been lettered the same asthe pipes to which they areattached, for greater clearness of description.

The diaphragm in which the valve seat is made is lettered as before i, the valve stem 'i', and the valve 41 The adjusting screw which lengthens or shortens the valve stem so as to bring it into connection withthe eccentric on the engineers lever is marked 1 A check nut Z is run upon this screw against the end of the valve stem t. A small lever h having an eye at its end is placed with the eye around the valve stem, and its side presses against the check nut Z. If now, this lever could be moved toward the valve seat, as it fits the end of the valve stem tightly, both being made slightly conical or with shoulders, it would force the valve from its seat and allow air to pass into the chamber M which serves as a moisture trap, and from which moisture can be drawn out through the drainage cock 0 of Fig. 2, which would be placed at or near the lower point of the chamber M in Fig. 7.

A plate P is fastened upon the top of the chamber M, as shown in Figs. 6 and 7, and in this plate there is a slot 10 which is inclined, as shown in Fig. 6. Through this slot the handle it projects upward, and if drawn from the position shown in Fig. 6 toward the other end of the slot, the handle will be moved sidewise in the direction of the valvenl and will move with it the piston rod v1 endwise, until the valveiis opened. This contrivance, therefore, allows the engineer to open the valve by hand, and is an exact equivalent for the construction at first described and illustrated in Fig. 3. r 7

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States in this application I 1. The combination in a track sanding apparatus adapted to be operated by compressed air derived from the air brake system, of an air pipe e, a valve controlling the passage of air from said air pipe toward the track sanding apparatus, the pipe (1 leading from said valve to the track sanding apparatus, means of connecting said valve to and disconnecting it from the engineers lever h, the engineers lever h, and an independent handle for operating said valve, whereby the same may be ICC actuated on moving the engineers valve, or actuated by hand at the will of the engineer, substantially as described.

2. In a combined air brake apparatus and track sanding apparatus operated by air derived from the air brakeapparatus, the combination of a valve which controls the access of air to the track sanding apparatus with the handle of the engineers valve and a cam on said handle, and with an independent handle provided with or governed by a cam, whereby one and the same valve and one set of air pipes may be employed to admit air to the track sanding apparatus at the will of the engineer, bythe movement of the handleof the engineers valve, when applying the brakes or by the movement of the other handle when the brakes are not applied, substantially as described.

3. The combination in an. air actuated track sanding apparatus of the handle of the engineers valve with a detachable cam frame, and with the valve which controls the ad.- mission of air to the track sanding apparatus, and with t the valve stem thereof, substantially as described.

4. In an air actuated track sanding apparatus,.an air valve which controls the admission of air to the air pipe leading to the sand box, in combination with three other elements: to wit,with said air pipe, with the handle which controls the train. brake valve,

and with an extensible valve stem, substantially as and for the purposes described.

5. In an air actuated track sanding apparatus, the combination with the valve stem of the valve which admits air to the track sanding apparatus, of the sliding cap Z, and eccentric m, substantially as described. 6. In an air actuated track sanding apparatus, the combination of the moisture separator M with the valve '5 which controls the air pipe leading to said moisture separator and shuts 0E from it or admits to. it the air under pressure for actuating the track sanding device proper, substantially as and for the purposes described.

7. In an air actuated track sanding apparatus containing means for admittingor excluding air from the air pipe leading to the sand box or sanding pipes, the further combination of the lever k and cam plate P provided with the cam slot p, with the valve '6, substantially as and for the purposes described.

CHARLES w. SHERBURNE. a

In presence of.

J. M. DOLAN, F. F. RAYMOND, 2d.