US2743952A - Sanding nozzle for wheeled vehicles - Google Patents

Description

May 1, 1956 w. B. DEAN SANDING NOZZLE FOR WHEELED VEHICLES Filed NOV. 19, 1952 INVENTOR Wal fer B. Dea n ATTORNEY normally is mounted on the frame of the car.

United States Patent Office 2,743,952 Patented May 1, 1956 SANDING NOZZLE FOR WHEELED VEHICLES Walter B. Dean, Narberth, Pa., assignor to The Budd Company, Philadelphia, Pa., a corporation of Pennsyl- Vania Application November 19, 1952, Serial No. 321,464

3 Claims. (Cl. 291-46) This invention relates to sanding nozzles for wheeled vehicles and has for an object the provision of improvements in this art.

One of the particular objects is to provide a sanding nozzle of suflicient length, flexibility, expansibility, and vibratory movement to avoid clogging, as by ice or packing of sand all the way from the end back to the sand trap to which the final sand dispensing tube is attached.

Another object is to provide a mounting for the sanding nozzle which imparts to it suflicient vibration to aid in breaking up any congestion of sand which tends to form in it.

Another object is to provide an improved nozzle holding device which provides for quick securement and release, which will not work loose, and which will not constrict the expansion of the nozzle to any objectional extent.

In Patents Numbers 2,196,977 and 2,196,978 there is disclosed an extensible sand nozzle which, when clogged, expands with air pressure to cause the obstruction to be removed. These nozzles have worked well for their intended purpose but in many cases, especially in cold wet .weather, the pipe between the short nozzle and the sand trap clogs and, since it does not expand like the rubber nozzle, the obstruction remains until removed by heat or hand hammering after the vehicle stops, neither of any value during the run when sand is needed but unavailable.

Further, in the former system, the nozzle itself, being mounted on the metal pipe which was carried by the car body frame, had considerable swinging movement so that sand might not fall on the rail Where needed. Moreover, the nozzle did not have enough pounding vibration during travel to avoid large obstructions in very cold wet weather, which obstructions could not readily be removed by air pressure alone.

According to the present invention, these difficulties are overcome by providing a flexible expansible nozzle of such length as to extend back to the sand trap and by providing a support for it near its end on the Wheel bearing support in order to direct sand accurately upon the track and to provide suflicient sharp vibration to prevent the formation of large obstructions.

An exemplary embodiment of the invention will be described in connection with the drawings of an illustrative embodiment thereof, wherein:

Fig. 1 is a side elevation of a wheel and sanding assembly of a wheel truck;

Fig. 2 is an inverted plan view of parts shown in Fig. 1;

Fig. 3 a side view, partly in section, on the line 3-3 of Fig. 2; and

Fig. 4 is a section taken on the line 4-4' of Fig. 1.

As shown in Fig. 1, each wheel is provided with a sanding nozzle 11 connected to a sand trap 12 which The general assembly is shown in Patents Numbers 2,196,977 and 2,196,978, referred to above.

The nozzle 11 is made of elastic, flexible, distensible material, such as rubber, which will expand with air pressure to eliminate any congestion which may tend to form. The flexible nozzle extends all the way back to the sand trap where the sand is fully protected from moisture, hence the full length which might become clogged is expansible to eliminate congestion.

As a further aid in breaking up congestion, the nozzle 11 is held near the end by a mounting 13 which is secured directly on the wheel journal box 14 which receives constant sharp vibration from travel of the wheel on the rail whereby sand congestion is minimized. Some adjustment is provided at the joint where the mounting is secured to the journal box 14 by bolts 15. By this arrangement the nozzle will be accurately located and firmly held relative to the contact point of the wheel tread on the rail.

The mounting 13 terminates in a retainer 16 which is formed as a hook into which the nozzle may be slipped from the side. The nozzle is retained by bolts 17 which are inserted and secured after the nozzle has been inserted.

The nozzle is not tightly held in the retainer, hence is free to expand therein when necessary to break up congestion. In order to prevent longitudinal movement of the nozzle in the retainer the nozzle is provided with an integral circumferential rib 18 which fits in a slit 19 formed in the retainer, the rib sliding into the slit as the nozzle is inserted in the retainer.

It is thus seen that the invention provides a dependable and eflective sanding nozzle and mounting therefor which will inhibit obstruction under very severe operating conditions.

While one embodiment has been described by way of illustration, it is to be understood that there may be other embodiments within the general scope of the invention.

What is claimed is:

1. Sanding means for a wheeled vehicle provided with a sand trap on the body for supplying said with air under pressure and a wheel support bearing structure, in combination, a journal box supporting a wheel axle, a flexible expansible nozzle connected to said sand trap, and a support carried by said journal box for said nozzle near the end of the nozzle at a wheel tread to keep the end of the nozzle accurately in proper position and to produce sufficient vibration to prevent the formation of large obstructions in the nozzle, the support loosely embracing the nozzle to allow flexing and distension of the nozzle to break up sand congestion in the nozzle.

2. Sanding means for a wheeled vehicle provided with a sand trap on the body for supplying sand and air under pressure and a wheel bearing box support, in combination, a flexible expansible sanding nozzle forming the end of a line from said sand trap, an integral enlargement near the end of said nozzle, and a bracket carried by the wheel bearing box support having a loose clasp retainer for said nozzle embracing said enlargement to allow expansion and vibratory movement of the nozzle without axial displacement relative to said clasp support.

3. Sanding means for a wheeled vehicle provided with a sand trap on the body for supplying sand and air under pressure and a wheel bearing box support, in combination, a flexible expansible sanding nozzle extending from the sand trap to a point near the bottom of the Wheel, a circumferential rib on the nozzle near the end, a bracket secured to the wheel bearing box, a retainer of book form receiving the end of the nozzle from one side and having a slit receiving said rib, and bolts in the hook retainer 3 4 behind the nozzle to hold it loosely in place, the nozzle 930,008 White Aug. 3, 1909 being expansible in the retainer and being held by the rib 946,346 Gibbs J an. 11, 1910 against longitudinal movement. 1,403,878 Swearingen Jan. 17, 1922 2,196,977 1 Campbell et al Apr. 16, 1940 References Cited in the file of this patent 5 2,304, 73 Blomberg De 15, 1942 UNITED STATES PATENTS 2,352,252 Canetta June 27, 1944 673,316 Charles APR 30 1901 2,488,900 Deagan 9

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