US1391998A - Dust-guard for car-axle boxes - Google Patents

Description

- A. CURRIE.

DUST GUARD FOR CAR AXLE BOXES. APPLICATION FILED Nov. I8, 1918.

1,391,998." Pa nted'sepu 27,1921

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ALEXANDER CURRIEpOFyYoNKERs, NEW YORK.

DUST-GUARD FOR CAR-AXLE BOXES;

Specificationof Letters Patent. 7 Patented Sept. 27, 1921.

Original application filed November 24-, 1917, Serial No. 203,805. 'Divided'and this application filed November is, 191 8.

T0 all'whomz't may concern." l

Be it knownthat I, ALEXANDER CURRIE, a citizen of Canada, and resident of Yonkers, in the county of WVestchester and State of New York, have invented certain new and useful Improvements'in Dust-Guards for Car-Axle Boxes, of which the following is a specification.

This application "is a divisional of one filed by me on Nov. 241, 1917 under Serial Number 203805. I

The invention has for an object to provide'a self-supporting metallic dust guard of simple construction adapted to facilitate installation of the guard in a dust guard slot and to minimize danger of its being rendered non-self-supporting from defectiveapplication to an axle box or application to a defective or unsuitable box, or otherwise.

Figure 1 of the drawings is a face view of a dust guard embodying the invention.

Fig. 2 is a transverse section on the line 22 of Fig. 1.

Fig. 3 is a side elevation. Fig. 4 is a horizontal section on the line 4-4 of Fig. 1.

As here shown my improved dust guard comprises a single plate 2 of resilient metal, preferably soft steel, and having formed therein an axle opening 4 surrounded by a collar 5, this opening being disposed approximately centrally of the plate.

The upper end of the plate is in the form of a pair of spaced flanges 6 and 7 bent over on the same side of the plate as the collar 5, these flanges in vertical section being in the form of a double curve whose extreme edge is bent backwardly toward the body of the plate as at 8. The lower flange is also formed as at 10 on the same side as the flanges 6 and 7 and of the same double curve as the latter and bending back toward the body of the plate at its edge as at 11.

The sides of the guard are shown as tapering toward oneanother in the lower portion thereof, this taper commencing a short distance above the junction of the flange with the body of the plate and continuing down through the flange.

The space between the top flanges corresponds in size and shape to the outline of l the bottom flange, the top flanges thus tapering in width toward the top edge of the plate. The lower flange preferablyprojects Serial No. 263,030.

a-lesser lateral distance from the body of the plate than the upper flanges.

The body of the plate is preferably stiffened on each side of the axle opening by a series of vertical corrugations 15 which increase insize, as shown inthe drawings, toward the side edges of the plate. The lower flange may be stiffened by the corrugations 17 disposed inwardly of the corrugations 15 and overlapping the ends of the latter, these corrugations 17 preferably decreasing in size toward the lower portion of the flange 10. and dying out a distance above the bottom of this flange, while 'the upper flanges may be stiffened by carrying the corrugations 15 upward thereinto, the corrugations closer'to the axle opening being carried up farther than those toward the edge of the plate.

This construction has the advantage of lightness and also of saving of steel since it will be apparent that in stamping the blanks the portion cut out between the top flanges G and 7 will constitute the lower flange of another guard.

Also the stiffening of the various parts of the guard insures suflicient holding power in the dust guard slot while with the lower flange having a smaller lateral offset than the upper flanges installation in the dust guard slot is facilitated, the lower flange projecting just a sufiicient distance to per mit of installation in the narrowest dust guard slots without undue friction, the desired frictional hold against the Walls being obtained when. the upper flange is compressed in the slot.

I have indicated the cross sectional outline of the dust guard slot at 20 to show the position of the guard therein, but it is not thought necessary to further illustrate or describe the application of a guard to anaxle box, this being similar to the Gamage guard, Pat. No. 1,015,551, which is well known to the art. The flanges of the guard are sufficiently offset to support the guard in the slot by their resilient pressure while a structure is provided which eliminates the tendency to permanent distortion found in the Gamage guard.

What I claim is: V

1. A dust guard for car axle boxes comprising a single plate having at its upper end a pair of spaced flanges located toward opposite sides of the plate, and at itslower end a single flange located centrally between opposite sides of the plate, said upper and lower flanges being adapted to bear on one wall of the dust guard slot, and the body of the plate being adapted to bear on the opposite wall of the dust guard slot. 2. A dust guard for car axle boxes comprising a single plate having a pair a of laterally projecting spaced flanges at its upper end, and at its lower end a laterally projecting flange whose bottom portioncorresponds in size and shape to the lower portion of the space between the upper flanges. 3. A dust guard for car axle boxes having supporting flanges at its upper and lower ends and a central opening to receive the car axle,-the body of the plate being stiffened by a plurality of vertical corrugations increasing in size toward the side edges of the plate.

4. A dust guard for car axle boxes comprising a single platehaving at its upper end a pair of spaced supporting flanges and at its lower end a single supporting flange, and means stiffening the body of the plate and the upper flanges.

5. A dust guard for car axle boxes comprising a single plate having at its upper end a pair of spaced supporting flanges and at its lower end a single supporting flange, means stifl'ening the body of the plate and the upper flanges and independent means stiffening the lower flange.

Signed at Yonkers in the county of 'Westchester and State of New York this 15th day of November A. D. 1918. i

. ALEXANDER CURRIE.

lVitnesses: a

GEO. C. GARRETT,

HENRY M. ANDERSON.

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