US1286949A - Dust-guard for car-axle boxes. - Google Patents

Description

A. CURRIE. DUST GUARD FOB GAR AXLE amass.

APPLICATION FILED NOV- H). SH

Patented Dec. 10, 1918.

ALEXANDER CURRIE, 0F YONKERS, NEW YORK.

DUST-GUARD non OAR-AXLE BOXES.

Specification of Letters Patent.

Patenteaneeao, 1918.

Application filed November 10, 1917. Serial No. 201,361,

To all whom it may concern: I

Be it known that I, ALEXANDER C-unnm, a citizen of Canada, residentof Yonkers, in the county of Vestchester 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 invention relates to dust guards for car axle boxes and more particularly to a one-piece metallic dust guard adapted to support itself independently of the axle in the dust guard slot, the invention being an improvement in the type of dust guard shown in the patent to Harry G. Gamage, No.1,015,551.

The invention-has for an object to provide a self supporting metallic dust guard of simple construction in which the danger of the dust guard being rendered non-selfsupporting from either defective application of the dust guard to an axle box, or application of the guard to a defective box, or for other causes, will be reduced to a minimum.

Figure 1 of the drawings is an inside face View of a dust guard embodying the invention.

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

Fig. 3 is a side elevation.

Fig. 4 is a horizontal section on the line 44 of Fig. 1.

Fig. 5 is a horizontal section on the line 55 of Fig. 2.

Figs. 6 to 9 inclusive are similar views to Figs. 1 to 4 of a modified form of guard.

My improved dust guard, as shown in Figs. 1 to 5, 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 flanged over as at 6 on the same side as the collar 5, this flange in vertical section being in the form of a double curve whose extreme edge 6' bends backwardly toward the body of the plate. This upper flange preferably extends substantially the full width of the plate throughout its entire area although the up per corners may be curved slightly inward as at 7.

The lower end of the dust guard is also flanged over as at 10 on the same side as the flange 6, this flange 10 being also preferably of the same double curve shape as the flange 6 and bendingback toward the body of the plate at its edge as at 10.

In the present instance I have shown the lower flange as being of rounded outline, thus 1 permitting of installation of the guard in elther round or square bottom boxes, while the diminished size of the lower flange renders the guard more easy of insertion in the dust guard slot.

To reinforce the bodv of the guard whereit is weakened by the axle opening 4 the side portions of the plate are preferably bent in a gradual curve in the same direction as the collar 5, as shown at 15, thus providing in effect shallow stiffening flanges which merge at their ends into the upper and lower flanges. As will be apparent the plate body is stiffened by a flange extending continuously around all four sides thereof and which is extended to a greater depth on two of its opposite sides to constitute the top and bottom resilient flanges 6 and 10, while in conjunction with the collar 5 an arched structure is provided.

I have indicated the cross sectional outline of the dust guard slot at 18 in Fig. 2 to show the position of the guard therein, but it is not thought necessary to further illustrate or describe the application of the guard to an axle box, this being similar to the Gamage guard above mentioned which is well known to the art, the flanges being suffisilient pressure, while at the same time, a

structure is provided which eliminates the tendency to permanent distortion of the guard found in the Gamage guard.

In the modification shown in Figs. 6-to 9 the guard is composed of a steel plate 20 of the same general outline as that shown in Fig. 1 and having an axle opening 21 surrounded by a collar 22.

Projecting laterally from the upper end 1 of this plate is a flange 23 similar to the flange 6, while on opposite sides of the axle opening the metal is flanged in. as at 24 to stiflen the plate.

In this modification the whole plate extends downwardly at an angle to the general plane of the dust guard slot so as to cause the unflanged bottom thereof to bear on the same wall of the slot as the flange 23.

This construction greatly facilitates insertion of the guard in the slot, as there is no frictional holding contact until the upper flange enters the slot, while the stiffening of the plate intermediateits ends insures of the transmission of sufficient pressure to the lower resilient portion 1 of the plate without any buckling of the body of the plate. What I claim is:

1. A dust guard for car axle boxes comprising a single plate having a flanged cen- 10 tral opening adapted to receive thecar axle,

said plate being formed with a peripheral flange extending continuously therearound,

' said flange being extended to a greater depth on two opposite sides of the plate to consti- 15 tute resilient supporting members. 7

2. A dust guard for car axle boxes comprising a single plate having resilient supporting portions at upper and lower ends and an opening to receive the axle, and side flanges merging into said supporting portions whereby the body of the plate is stifiened.

Signed at Yonkers, in the county of Westchester and State of New York this 9th day of November A. D. 1917 ALEXANDER- CURB-IE.

' Witnesses:

JOHN HOWARD, Jr., W. B. HAMMOND.

Copies of this patent inay be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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