Improvements in Crank Hangers for Oyoles and the like.
Year: 1897

page_text: Date of Application, 2nd Apr., 1897-Accepted, 8th May, 1897
COMPLETE SPECIFICATION.
Improvements in Crank Hangers for Oyoles and the like.
I, CHARLES EDWARD TOMLINSON, of 111. Garfield Avenue, in the City of Syracuse,
County of Onondaga, and State of New York, United States of America, Draughts-
man, do hereby declare the nature of this invention and in what mannor the same
is to ho performed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to the crank-banger, and the attachment to it of the several
members of a cycle frame converging to it and supporting it in said frame.
The object of this invention is to produce an improved crank-hanger in which is
journaled the shaft which is driven by the pedal cranks; and to provide a more secure
and firm fastening thereto of the several members of a cyclo frame there converging,
to wit: the saddle post, the forward reach-section and the rearward reach-section, and
wheel fork combined; said hanger comprising an outer shell, perforated at the proper
points, a supplemental tube or crank-shaft-barrel within and concentrio with it,
bushings partly within said shell or body, and partly exterior to it or wholly
within it, to which the several frame members are brazed or otherwise secured.
It is constructed as follows, reference being had to the accompanying drawings
in which-
Fig. 1, is a sido elovation of the banger and the several frame members secured
thereto, the crank-shaft and its bearings cups and cones being omitted.
Fig. 2, is a vertical section thereof.
Fig. 3, is an elevation of the bushing shown in Figs. 1 and 2.
Fig. 4, is a perspective of the crank-shaft-barrol, with the wheel-fork-bar bushings
secured thereto.
Fig. 5, is a side elevation like Fig. 1, of a crank banger having bushings
projecting inwardly from the body to which the frame bars are secured within said
body.
Fig. 6, is a section of part of the hanger body, and a bushing within it, the dotted
linos indicating a frame-bar.
A is the main tabo, or body of a crank-hanger, within which is a crank-shaft-barrel,
or supplemental tube 2, through which the crank-shaft is inserted, being journaled in
suitable ball-bearings with suitable cups, cones and balls (not shown) suitably mounted
within the ends of said body.
This hanger is located at the converging point of the following frame members, the
post 3, the front reach bar or section 4, and the member or members 5 which
constitute the rear reach-bar or section and wheel-fork combined, all of which frame
bars or frame members are of any suitable construction; except that in Fig. 5, the
members 3 and 4 are scarfed at 6 their junction within said body, and also transversely
concaved, to create a circular seat for the crank-shaft-barrel.
These members are severally inserted through said body, and suitably connected to
a bushing 7 consisting of a piece of suitable material, as tubing for lightness, bent
contrally creating the diverging arms and 9, and concaved transversely at 10 to
create a seat for the crank-shaft-barrel; said arms 8 and 9 fitting into the members 3
and 4 and extending beyond said body to create a reinforcement for each exterior to
said body, the joints being then invisible exteriorly.
It is evident that when said members are inserted into the projecting arms of said
bushing the joints will be visible exteriorly.

page_text: In Figs. 5 and 6, said bushing consists of a piece of sheet-metal stamped up to
shape, and to create the inwardly projecting arms 11 suitably secured to the inner
wall of said body, and the frame members entor them through said body.
Bushings or reinforcements 12 are inserted through said body and suitably secured
to said crank-shaft tube, as in Fig. 4, and the frame members 5 fit over them, and are
reinforced by them; or said members are inserted into the bushing shown in
Figs. 5 and 6.
In all cases the frame members are secured, in any suitable manner or by any
suitable means or medium, to said body, to said bushings, and to said crank-banger
tube; the usual means being brazing.
Key-pins 13 are sometimes used to hold the respective members or parts in
proper position relative to each other preparatory to their being secured, as by
brazing.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
clain is :-
:-
1. In a crank-hanger a body and cycle frame-bars inserted into it, combined
with bushings within it to which said frame-bars are secured.
2. In a crank-hanger a body, and a cycle frame-bars inserted into it, combined
with bushings partly within and partly exterior to it to which said frame-bars are
secured and by which they are reinforced.
3. A crank-hanger comprising a body, cycle frame-bars inserted into it, and a
crank-shaft-barrel within said body combined with frame-bars bushings within said
body all being secured together in any suitable manner.
4. A crank-hanger, comprising a body, cycle frame-bars inserted into it, and a
crank-shaft-barrel within said body, combined with frame-bar bushings partly within
and partly exterior to said body to which the frame bars are secured and by which
they are reinforced.
5. In a crank-hanger, a body and bushings within it on lines radial thereto,
combined with a crank-shaft-barrel to which said bushings are secured.
6. In a crank-hanger, a body and bushings within it and projecting through it on
lines radial thereto, combined with a crank-shaft-barrel to which said bushings are
secured.
7. In a crank-banger, a body and radial bushings within it, combined with a crank-
shaft-barrel to which said bushings are secured, and frame members secured to the
respective bushings.
Dated this 2nd day or April 1997.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicani.