IMPROVEMENTS IN CAR WHEELS
Year: 1887

page_text: 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
be performed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to the class of car wheels which are partly composed of paper
interposed between the hub and tread of the wheel so as to relieve the wheel from
jars and render the same noiseless.
The invention consists in an improved construction and combination of parts as
hereinafter fully described and set forth 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; Fig. 3 is a detached rear side view of the
wheel body; Fig. 4 is a front view of the wheel hub bare of all the detachable parts
of the wheel; Fig. 5 is a detached plan view of the tire retaining ring: Fig. 6 is a
detached plan view of the outer ring of the wheel body; Fig. 7 is a detached side
view of the hub; and Fig. 8 is a detached face view of the collar by which the wheel
body is retained on the hub.
Similar letters of reference indicate corresponding parts.
A-denotes a car axle, and-H-the wheel hub rigidly secured on said axle in any
ordinary and well known manner. Said hub is formed at one end with a stout wide
flange F-which has on its inner side, an overhanging projection--from which
extend lugs--partway toward the hub for the purpose hereinafter explained.
The opposite end of the hub is provided with diagonal grooves-e-extending
through the end of the hub, and in this groove is locked the collar-I-which is
provided with lugs-m-projecting into the eye of the collar as represented in Fig. 8

page_text: of the drawing, and adapted to enter the groove-c.-Said collar being slipped onto
the hub by entering the lugs-m-into said grooves from the outer ends thereof, and
in pushing the collar along on the hub the lugs follow the grooves and finally become
wedged therein by the resistance of the abutment of the collar against the side of the
wheel body.
By means of bolts --passing through the collar-1-flange-F-and
intervening wheel body, the aforesaid collar is retained in place.
The collar-I-is formed on the side facing the flange-F-with an overhanging
projection--as illustrated in Fig. 2 of the drawing.
Between the flange-F-and collar-I-is secured the body of the wheel which is
constructed as follows:
A ring-C is inserted between the outer peripheral portions of two annular steel
plates P P which are secured to opposite sides of said ring in the manner
hereinafter described.
Said plates are each provided with a central eye of somewhat greater diameter than
the wheel hub which passes through said eye.
The ring with the plates-P-pi-attached thereto as aforesaid forms a
hollow metallic body, the cavity of which extends to the central eye of the body, and
this cavity I fill with a core-D-of compressed paper or analogous elastic material.
The core is made to project over the eye of the described metallic body, and has a
central eye of the same diameter as the hub-H―so as to have a firm bearing thereon,
and support the metallic body isolated from the hub thus insuring the elasticity to the
axial support of the wheel, derived from the interposition of the paper core between
the outer ring-C-and hub.
To the exterior of the plates-P-P-around the eyes thereof are rigidly secured
reinforcing plates---which occupy the recesses formed on the inner sides of
the flange F and collar-I-by the over-hanging projections--i-herein before
described.
The plate is provided in its outer periphery with notchos-n-n-coinciding
with the Ings-h-h-which project from the flange portion--toward the hub as
hereinbefore explained.
The engagement of said lugs with the notches-n-n--forms a clutch which
compels the hub to rotate with the body of the wheel, and thus relieves the bolts-d-
from shearing strain, said bolts passing through the collar-I,-plates-P—P',-
intervening core-D-and flange F, and serve to clamp the collar-1-6rmly
against the side of the wheel body and confine the latter on the hub.
T-represents the steel tire which I form at one edge of its inner peripheral face
with an undercut inward projecting flange-t, and at the opposite edge of said face
with an undercut circumferential groove. This tire I secure to the body of the
wheel by forming the ring-(with a laterally projecting circumferential flange-u-
on the outer edge of one side, which flange interlocks with the flange-t—of the tire
as represented in Fig. 2 of the drawing.
The outer periphery of the plate-P-is flush with that of the ring-C,—and
thus has a direct bearing on the tire-T,-which bearing relieves the bolts-e-e
from shearing strain.
The entrance to the groove-a-is sufficiently wide to receive two rings-R-
and R side by side.
The outer ring-R-is formed with a laterally projecting flange--which enters
the undercut portion of the groove-a,-and thus becomes interlocked with the
over-hanging portion of the tire, and the other ring-Ris plain and introduced
between the ring R-and ring-C-as shown in Fig. 2 of the drawing.
The ring R is composed of two segments and a key-k-introduced between the
ends of said segments; and the ring is formed likewise in this respect so as to
permit of introducing said rings into the groove-a.
The key of the ring-R is provided with an eye-u-and the key of the
ring R has projecting from its side a lug--which protrudes through the

page_text: eye--and through a coinciding eye-w-in the clamp-U-which is placed on
the exterior of the key-k-of the ring-R-and laps onto the ends of the sections
of said ring.
By means of bolts passing through the clamp-U,-rings-R-R',-
plates P-P-and ring-C, said parts are firmly united.
It will be observed that by the projection of the flange--on one side of the
ring, and the flush, edge of the plate P- on the opposite side of said ring the
body of the wheel receives a broad bearing surface on the tire, and thus properly
sustains the same, and by the abutment of the periphery of the plate-P-against
the over-hanging portion of the flange--the latter is braced and the aforesaid plate
has a direct bearing on the tire, which latter is essential to relieve the bolts-
from shearing strain.
In order to further guard against said strain, I form the ring-C-with lugs-
projecting from the sides thereof and through corresponding perforations in the
plates-P-P-as shown in Fig. 2 of the drawing.
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 composed of a hub, an outer ring, plates secured to the opposite
sides of said ring and to a hub, a non metallic core filling the cavity between the
aforesaid plates and seated directly upon the hub, and a tire secured to the outer ring,
substantially as shown and described.
2. In a car wheel, the combination with the hub, of a hollow metallic wheel body
composed of an outer ring, plates secured to opposite sides of said outer ring, and a
non inetallic core filling said cavity between said plates, said cavity being enlarged by
a bulge of the inner side plate around the central eye thereof and the non metallic
core enlarged correspondingly, whereby an enlarged bearing for said core is secured
upon the hub, substantially as described and shown.
3. The combination with the hub and hollow metallic body, of a non metallic core
seated directly on the hub, and clutch connections between the hub and metallic body
to compel the latter together with the core to rotate with the hub, substantially as
set forth and shown.
4. In a car wheel the combination with the hub of a metallic wheel body having
an internal cavity extending to the central eye of said body, and a core of paper or
analogous elastic material in said cavity, said core projecting over the central eye of
the wheel body to bear on the hub and sustain the eye of the metallic body isolated
from the hub, substantially as and for the purposes set forth.
5. The combination with the hub, of the annular metallic plates-P-P-having
central eyes of greater diameter than the hub, the ring--secured between the
peripheral portions of said plates and the core-D-of paper or analogous material
filling the cavity between the plates and having a central eye of the same diameter as
the hub substantially as described and shown.
6. In a car wheel, the plates-P-P-and ring-C-locked together by a clutch
formed integral with said parts, as and for the purpose specified.
7. In a car wheel, the combination of the plates-P-P-provided with
perforations, and the ring-C-formed with outward projecting lugs-1-1-entering
the aforesaid perforations substantially as described and shown.
8. In combination with the wheel body and tire securing devices, the tire-T-
formed at one edge of its inner peripheral face, with the under cut inward projecting
flange and at the opposite edge of said face with the undercut groove-a-
substantially as described and shown.
9. The combination of the tire formed at one edge of its inner peripheral face with
the undercut inward projecting flange--and at the opposite edge of said face with
the undercut groove-a,-the ring-C-formed with the laterally projecting
flange interlocking with the flange--the plate-P-abutting against the
exterior of the over-hanging portion of the flange--the plate-P₁-abutting

page_text: against the tire, the retaining ring-R-having the outward flange-b-and seated in
the groovea, and the ring--inserted between the ring-R-and ring-C,—
substantially as described and shown.
10.-In combination with plates-P-P-provided with the reinforcing
plates P-P, the hub-H-provided at one end with the flange-F-and over-
hanging projection--on said flange, and provided at the opposite end with the
groovec, the collar-I-seated in said groove and provided with the over-hanging
projection, and bolts-d-and-e-for securing the plates-P-P₁-to the
ring--and to the hub, substantially as described and shown.