IMPROVEMENTS IN CAR WHEELS
Year: 1887

page_text: Date of Application, 5th July, 1887.
Specification Accepted, 5th Aug., 1887.
I, EDGAR PECKHAM, of the City of Syracuse, County of Onondaga, and State of
New York, United States of America, Manufacturer, do hereby declare the nature of
my invention for IMPROVEMENTS IN CAR WHEELS, and in what manner the same is to
he performed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to the class of car wheels which have an elastic body formed
of steel plates, and a tire secured to said body.
And the invention consists in an improved construction and combination of the
constituent parts of the wheel, as hereinafter fully described and pointed out in the
claims.
In the annexed Drawing, Fig. 1 is a side elevation of my improved car wheel;
Fig. 2 is a transverse section of the same on line Fig. 1, Fig. 3 is a transverse
section on line-y-y-Fig. 1; and Fig. 4 is a detached plan view of the tire
retaining ring and its clamp.
Similar letters of reference indicate corresponding parts.
-
A denotes the car axle -H-is the wheel hub which is formed with a
circumferential enlargement-H-presenting by its opposite sides two annular
shoulders-h—h. Against the shoulders are secured two annular steel
plates P-P, which together with the separate outer ring-C-constitute the
body of the wheel.
The aforesaid plates are secured to the shoulders-h-h-by means of bolts-o-o-
passing through the plates and intervening enlarged portion-H-of the hub as
shown in Fig. 2 of the drawing.
In order to relieve said bolts from shearing strain I form the hub with lugs-1-1-
projecting from one or both of the shoulders---and entering corresponding
perforations in the adjacent plate or plates, as illustrated in Fig. 3 of the drawings.
To the outer side of the plates-P-P-adjacent to the eye by which they rest
upon the hub, I secure collars-n-n-which also rest on the hub and thus afford
additional support for the plates-P-P-on the hub.
The outer ring--I provide on its opposite sides with rabbets--extending

page_text: to the inner periphery of the ring and leaving laterally projecting shoulders or
flanges a-a-around the outer periphery of the ring.
-
Said ring is inserted between the outer peripheral portion of the plates-P—P¹‚—
which latter lie in the rabbets-r. and abut against the shoulders or
flanges aa-and are secured to the aforesaid ring by bolts-d-d-passing
through the plates and intervening ring.
The abutment of the plates against the flanges-a-a² serves to relieve the bolts
from shearing strain in the direction toward the center of the wheel.
T-denotes the tire which I form with an undercut or dove-tailed inward projecting
flange on one side of the inner peripheral face, the main or central portion of
which latter is maintained flush with the outer peripheral portion of the ring-C.
The laterally projecting flange-a-of the ring-(—projects outward sufficiently
to enter and interlock with the flange-b,-and thus the tire is locked on the body of
the wheel so as to prevent its leaving the wheel in case the tire breaks transversely.
At the same time the flange-b-bears on the outside of the peripheral portion of the 1
plate P and thus sustains the edge thereof which abuts against the flange―a¹.
The tire is retained in its aforesaid locked position by the retaining ring-R
which is seated in a circunferential groove-c-in the inner peripheral face of the
tire adjacent to the side of the ring-R-opposite the interlocked side thereof. Said
groove leaves a circumferential shoulder--around the edge of the tire, and this 2
shoulder affords a secure hold for the retaining ring-R.
It will be observed that by this construction the tire is most securely confined on
the body of the wheel by shoulders which are integral with the tire and against which
the body abuts at opposite sides; furthermore, the ring--with its flanges-a-a-
forms a broad bearing for the tire on the body of the wheel.
In order to permit the retaining ring-R-to be inserted in the groove-c-I divide
said ring transversely into two sections somewhat smaller than a semicircle and
insert between one of the joints thereof a key-L-which is provided with a lug――
on its outer side, and over said key I place a clamping plate-N-which is provided
with an eye for the reception of the lug-,-and laps with its ends onto the ends of
the ring sections as illustrated in Fig. 1 of the drawings.
The ring with its key and clamp are retained in position by the holts-d―d—
passing through them.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim is :-
1-A car wheel body composed of a hub having a circumferential projection, outer
ring separate and distinct from the tire of approximately the same width as the
aforesaid projection, and plate secured to opposite sides of said projection and ring.
2- In a car wheel, the wheel body composed of a hub having a circumferential
projection, a continuous outer ring and plates secured directly to opposite sides of the
aforesaid hub projection and outer ring, in combination with a tire having its inner
periphery flush with the outer periphery of the aforesaid ring and seated directly
upon the same as set forth and shown.
3-In a car wheel the wheel body composed of a hub, an outer ring, plates secured
to the hub and to opposite sides of the aforesaid ring, and a laterally projecting flange
on the periphery of said body in combination with a tire seated on the aforesaid ring
and having an undercut flange interlocking with the aforesaid flange of the body.
4-In combination with the ring-C-provided with the flange-A',-the tire-T-
provided with the undercut flange-b-interlocking with the flange-A'--and the
plate-P -entering between the flange--and ring-C-substantially as described
and shown.
5 In a car wheel the combination of a bub provided with two circumferential
shoulders, an outer ring formed with circumferential rabbits in opposite sides and
extending to the inner periphery of said ring, plates secured to the aforesaid shoulders
of the hub and in the rabbits of the outer ring, and a tire secured to the exterior of
said ring as described and shown.

page_text: 6-The combination of the hub-H-provided with the shoulders-h-h,—the
ring provided with rabbets---and flanges-a-a-the plates-P-P-
secured to the shoulders-h-h-and rabbets--and abutting with their ends
against the hub and against the flanges---the tire-T-formed with the under-
cut flange interlocking with the flange-a-and provided with the groove-C-
the retaining ring-R-seated in said groove and bolts-d-d-passing through the
ring R-plates P-P-and intervening ring-C,-substantially as described and
shown.
7-The combination with the hub-H-provided with the shoulders-h-h-and
the plates P-P-on said shoulders the collars-N-N-secured to the sides of the
plates and resting on the hub and the bolts-0-0-securing the plates to the hub,
substantially as described and shown.
8 The combination of the hub-H-provided with shoulders-h-h-and with
lugs and the plate provided with perforations for the reception of the lugs.
substantially as described and shown for the purpose set forth.
Dated this 31st day of May 1887.
EDGAR PECKHAM.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.