US404701A - Dust-guard for car-axle boxes - Google Patents

Description

'KNO'MOOSU L. GOULL'IGUD. DUST GUARD FOR CAR AXLB BOXES. No. 404,701.. Patented June 4, 1889r N. PETERS. Pmmmmgnpmr. wmingmn. D. c.

UNITED nSTATES PATENT OFFICE.

LOUIS GOULLIOUD, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR TO THE UNION BEARING AND LUBRICATOR COMPANY, OF PORTLAND, MAINE.

DUST-GUARD FOR CAR-AXLE BOXES.

SPECIFICATION forming part of Letters Patent No. 404,701, dated June 4, 1889.

`Application filed January 4, 1889. Serial No. 295,478. (No model.) Patented in Canada January 3l, 1889, No. 30,680.

To all whom it may concern:

Be it known that I, LoUIs GoULLIoUD, of the city of Montreal, in the District of Montreal and Province of Quebec, Canada, have 5 invented a certain new and useful Improved Dust-Guard for Car-Axle Boxes, (for which I have already obtained Letters Patent of Canada, No. 30,680, bearing date January 3l,

1889;) and I do hereby declare that the fol- [o lowing is a full, clear, and exact description of the same.

My invention, although denominated a dust-guard, and serving to keep dust and grit out of the axle-box, is primarily intended I5 to prevent the escape of liquid lubricant.

It may be thus brieiiy described: Ipropose to face up perfectly true the outside face of t-he back plate of the axle-box, and to secure to its projecting sides by bolts or other suitzo able means a second plate having its correspending or inner face trued up in the same way as the back plate of the box. On the under side of this second plate is formed a projecting rib fitting in between the projecting sides of the axle-box and butting up against the face of t-he back plate. In both these plates are formed the usual oval openings for the axle to pass through. Between these two planed surfaces is mounted upon 3o the axle the dust-guard proper. This Iform of a substance which must combine the qualities of non-permeability, so that no liquid lubricant can pass through it, and non-susceptibility to wear, so as to do away with the 3 5 necessity of devices for keeping' the guard in contact with the axle, and at the same time have the power of expansion, so that any compressive force exerted on the edges or periphery will force out the surfaces. I have 4o by experience found that cork will lill all these conditions, and I therefore propose to form my dust-guard proper of that substance. The disk or plate is perforated so as to lit on the axle. This cork disk or plate will have both surfaces trued up and smoothened so that they shall be perfectly in contact with the trued-up faces of the plates when the disk is expanded laterally by the compression of the periphery. This disk or plate is usually 5o formed with its lower part semicircular, or nearly so, the sides converging from about the center or axis and ending in a fiat top. Upon this is set a plate, through the ends of which and of another plate some little distance above it pass the ends of a thin metal compression band closely surrounding the disk. Compression is exerted by the band upon the disk through the action of a setscrew passing through the top plate and working on the lower one, so as to draw the 6o ends of the strap together.

For full comprehension of the invention, reference must be had to the annexed drawings, forming Iart of this specification, in which- Figure 1 is a top view of the rear part of an axle-box embodying myinvention; Fig. 2,

a sectional elevation taken on line Fig. l; and Fig. 3, a similar view on line zz, Fig. 2.

Similar letters of reference indicate like 7o parts.

As no particular construction of the axlebox is claimed, no allusion will be made to it further than to say that A is the back plate, pierced in the usual way for the axle, and with projections A. Its rear face is planed to a perfectly true surface.

B is the additional or supplementary plate with projection B on its lower edge, fitting in between the side projections A and hay- 8o ing its front face trued up to correspond with the rear face of A. It has of course an opening identical with that in A for the passage of the axle.

D is a disk or plate of cork, having its faces 8 5 worked perfectly smooth to correspond with the meeting faces of A and B, and mounted on the axle. It is preferably of the shape shown in Fig. 2, and partially encircled by a metal band or compression-strap E. 9o

F is a plate resting on the top of D, and G a plate set at some little distance above F, through both of which the ends of the strap E pass.

His a set-screw working through the top plate G and pressing upon the plate F, so that by its action the disk D will be compressed, thus giving a perfectly tight joint round the axle and against the meeting faces of A and I3. Ioo

lVhat I claim is as follows:

l. The combination, with the back plate of an axle-box, of asupplementary plate secured thereto, leaving Space between them, the innel' faces of both plates being ti'ued up, a cork disk mounted 0n the axle, and a band partially surrounding the periphery of the disk and provided with a device for tighteningI it up on same, all substantially as herein set foi-th.

2. The combination,with the back plate A of anaxlebox, of the plate lseenred t0 same, 1o single coi-k disk l), mounted on axle between plates, strap E, encii'eling such disk, plates F and G, and set-serew II, all substantially as herein described.

LOUTS GOULTOUT). \Vitnesses:

JOHN Ress, GEO. D. 'IfUei-ii.

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