Improvements in Cycle Cranks.
Year: 1896

page_text: Date of Application, 18th July, 1896
Complete Specification Left, 29th Mar., 1897-Accepted, 15th May, 1897
PROVISIONAL SPECIFICATION.
I, CHARLES THOMAS BROCK SANGSTER, Works Manager of The Cycle
Components Manufacturing Company Limite l, of Bournbrook, near the City of
Birmingham, do hereby declare the nature of this invention to be as follows:-
This invention relates to cycle cranks and has for its object the closing or
boxing-in of the axle end of the same, whereby the end of the axle or spindle
is concealed and a neat connection thereby made.
Thus, in carrying out my invention, I make the outer side of the head of the
said crank closed or boxed-in instead of having a thoroughfare hole therethrough
as is usual, whereby the end of the crank axle is concealed or hidden from view.
The sinking upon the inner side of the head is square bottomed, leaving a thin
division between the outside of the crank and the bottom of the said sinking, which
is of an outside diameter equal to the outside diameter of the axle.
A transverse thoroughfare hole is passed through the head for the reception of
the crank securing cottar suitable for taking within a key way formed in one
side of the axle end, whereby the said box headed crank is secured to the said
axle eud.
No text detected.
CHARLES THOMAS BROCK SANGSTER,
By Henry Skerrett,
Agent for Applicant.
Improvements in Cycle Cranks.
1, CHARLES THOMAS BROCK SANGSTER Works Manager of The Cycle
Components Manufacturing Company Limited, of Bournbrook, near the City of
Birmingham, do hereby declare the nature of this invention 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 cycle cranks and has for its object, the closing or
boxing-in of the hole in the axle end of the same, whereby the end of the axle or
spindle is concealed and a neat connection made.
Figure of the accompanying drawings represents a back elevation of a cycle
crank with the hole in the inner end whereinto the crank axle takes, closed or
boxed in according to my invention.
Figure 2 is a side elevation of the same and
Figure 3 a front elevation thereof.
Figure 4 is a vertical section upon the dotted lines a, Figure 1, of the upper part
of the crank, showing more clearly the closing of the outer end of the crank axle
hole

page_text: Figure 5 is a like vertical section, but taken upon the dotted line ', Figure 2.
Figure 6 represents a back elevation of my invention as applied to a combined
crank and chain wheel boss.
Figure 7 is a front elevation thereof and Figure 8 a vertical section upon the
dotted line Figure 7.
The same letters of reference indicate corresponding parts in the several figures
of the drawings.
Thus, in carrying out my invention, I close or civer in the outor end a', of the
axle hole a, in the head 6, of the crank b, instead of having a thoroughfare hole
therethrough as is usual whereby the end of the crank axle is boxed in, concealed
or hidden from view. In other words, the outer end a', of the hole or sinking a, in
the head of the crank is closed by a thin division 62, coming between the outside of
the crank and, the bottom of the said sinking which is of an inside diameter equal
to the outside diameter of the axle, and thus forming as it were a cap at the head
of the crank for the reception of the said axle end.
A transverse thoroughfare hole c, is passed through the head for the reception
of the crank securing cottar suitable for taking within a key way formed in one
side of the axle end, whereby the said box-headed crank is secured to the said
.axle end.
In Figures 7, 8 and 9, the head of the crank, having the closed end sinking
through it, has a circular boss d. formed integral therewith, carrying screwed
studs d', by which the said crank is detachably connected to a chain wheel..
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
claim is :-
In a cycle crank, closing or boxing in the outer end of the crank axle hole or
sinking formed in the head thereof, whereby the end of the said axle is concealed
from view, substantially as described and set forth.
Dated this 27th day of March 1897.
CHARLES THOMAS BROCK SANGSTER,
By Henry Skerrett,
24 Temple Row, Birmingham, Agent for Applicant.