US895247A

US895247A - Gear-case.

Info

Publication number: US895247A
Application number: US39725707A
Authority: US
Inventors: Peter Fray
Original assignee: COLUMBIA MACHINE WORKS AND MALLEABLE IRON CO
Current assignee: COLUMBIA MACHINE WORKS AND MALLEABLE IRON CO
Priority date: 1907-10-14
Filing date: 1907-10-14
Publication date: 1908-08-04
Anticipated expiration: 1925-08-04

Description

TED AUG. 4,

- P. PRAY.

GEAR CASE.

APPLICATION FILED OOT.14,'1901.

UNITED STATES PATENT oFFioE.

PETER PRAY, OF NEW YORK, N. Y., ASSIGNOR TO COLUMBIA MACHINE WORKS AND MALLEABLE IRON 00., OF BROOKLYN, NEW YORK, A CORPORATION OF \"EW YORK; X

/ GEAR-CASE.

Patented Aug. 4, 1808.

T 0 all whom it may concern:

Be it known that I, PETER FRAY, a citizen of the United States, residing at the borough of Brooklyn, county of Kings, city and State of New York, have invented an Improvement in Gear-Cases, of which the following is a specification.

My invention relates to an improved form of gear case for general use and especially for use on trolley cars and other vehicles. As heretofore employed these gear cases have been made with metal peripheries and sides, which were crushed in and buckled against the gears in certain kinds of accidents and particularlywhen striking such an obstruction as a stone between the car tracks; the gears were thus injured and often broken and could not be turned mitil the cases were removed.

In the device of my invention, the cases are made with'sheet metal band peripheries having flanged edges and wooden sides secured to the same within the flanged pen'pheries. The sheet metal band peripheries are provided with flanges and spaced apart tongues, both of which come outside of the wooden sides, the tongues being secured thereto by bolts- End curved members with flanges are connected to and strengthen the cases and bracket mernlx'rs support the cases from the frame of the car or vehicle. In case of an accident, with my improved gear case, the wooden sides are broken up and fall away, leaving the sheet metal periphery to spring back away from the gears leaving the same free, or else when the wooden sides are broken away, an easy matter to so bend the metal peripheries as to bring them out of contact with the gears.

In the draw; g, .Figure 1 is a perspective view of the device of my improvement. Fig. 2 is a vertical tmnsverse section on about the dotted line .r, r, Fig. 1. Fig. 3 is a longitudinal section at one end'of the ease.

The sides of :he case a, a, and b, I) are in pairs placed psmllel with one another and in The form of the gear case is generally ellip' tical with one end smaller-than the other, the

opposition; that is to say,the sides a, a are shaft opening 5 being smaller than the shaft opening 4 on account of the sizes of the shafts therein; the periphery of the case is made-in two similar arts of metal 0, (I, comparatively thin and lig it and I provide end flanges e,.f, with each of which is formed end curved members 6, f. The flanges e, f, are bolted together and the curved members 6, f, eonform in outline to the periphery c, d, and are connected thereto by suitable bolts or rivets, preferably rivets, as there is no occasion to separate these parts, therefore the criphery c is made substantially integral witi the end flanges e and curved members e, while the periphery d is substantially made integral with the end flanges f and end curved members Th sides a, a, and b, b, are to be received between and conform in shape with the sha )e imparted to the periphery of metal ban s; the o )posite edges of the periphery of curved metal bands 0, d, are made alike; that is to say,they are notched at spaced apart intervals and are overturned at the bases of the notches into the series of flanges 6 and the series of intermediate tongues 7. These tongues are about twice the length of the flanges and they are perforated and both the flanges 6 and the tongues 7 come outside of the sides a, a, and I), Z) and lie against the outer faces thereof.

I provide bolts 8 which pass through the openings in the tongues 7 near their free ends and through openings corresponding therewith in the wooden sides of the gear case; these bolts are shown with special plainness in Fig. 2. I have also shown and prefer to employ screws 9 which pass through the pe ripheries c, d, of metal down into the edges of the sides a, a, and b, b, so that between the bolts 8 and tongues 7 and the screws 9, the said peripheries are firmly and perinanently secured to the wooden sides of the gear case.

I have shown and prefer to employ the bracket members 10 and 11, the member 10 having parts at right angles to one another with one part connected to the outer surface of the case and the other member connected with the frame of the machine, while the member 11 has a bracket extending out from one side of one end flange e and overturned beyond the side of the gear case so as also to be adapted to be attached to part of the frame of the machine. r

Theseeases are usually employed where i i x l i there are two gears of different sizes on juxplace around the gears and their shafts.

' I claim as my invention:

1. A gear ease eomprlsmg wooden sides of predetermined outline, a peripheral band of sheet metal extending across between thev sides and notched at intervals, and having flanges and alternate tongues extending down therefrom and means for connecting said wood and metalparts together and for supporting them fromt e frame of the ve hicle or machine.

2. A gear case comprising wooden sides-of predetermined outline, aperipheral band of sheet metal extending across between the sides and notched at intervals and having flanges and alternate tongues. extending down therefrom, bolts passin' tthrough the tongues and sides of wood and s ews pas ing through the edges of the peripherallband to the edges of the sides of wood to hold the said parts together, means for st1fi'ening\and strengthemng, and other means for supporting the said gear case from the frame of the vehicle or machine. I

A gear case comprising wooden sides of predetermined outline, a peripheral band of sheet metal extending across between the sides and notched at intervals, andhaving 40 flanges and alternate tongues extending down therefrom, bolts passing through the tongues and sides of wood and screws passing through the edges of the peripheral band into the edges of the sides of wood to hold the said parts together, end flanges having curved members conforming to and fixed to the peripheral band of sheet metal and the flanges bolted together and bracket members of suitable form for supporting the. gear case from the frame of the vehicle or machine.

4. A divisible gearcase coin )rising wooden sides a, b, and a, b, in parallel pairs in opposition and of curved outline with juxtaposed meeting edges, curved peripheral bands of 5 metal extending around and across between the sides and with edge notches at intervals, and having flanges and alternate tongues extending down therefrom, means connecting the bands and sides at said tongues, means connecting the parts of the gear case andmeans for supporting the gear case from the frame of the vehicle or machine.

Signed by me this first d y of October 1907.

PETER FRAY.

Witnesses GEO. T. PINCKXEY, BERTHA M. ALLEN.