Improvements in Pedals for Velocipedes.
Year: 1898

page_text: Date of Application, 22nd Jan., 1898 - Accepted, 10th Dec., 1898
COMPLETE SPECIFICATION.
Improvements in Pedals for Velocipedes.
We, LOUIS HENRY HALL, Merchant, of No. 1200, Chestnut Street, and ROBERT
HENRY RAMSEY, Scientist, of No. 114, South Fourth Street, both of Philadelphia,
Pennsylvania, United States of America, 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:-
Our invention consists of an improved bicycle pedal, and the specific features
are fully set forth in the following specification and accompanying drawing
forming part thereof. In the drawing like parts are referred to by marks or
figures of a corresponding kind in the different views.
Fig. 1, is an end elevation of our pedal. Fig. 2, is a side elevation and
section on the line of Fig. 1, Fig. 3, an end elevation Fig. 4 a vertical
section on line C, D, of Fig. 2. Figs. 5 and 6 are details of the lock for the
adjustment disc or plate. Figs. 7 and 8 are vertical sections and part end
elevations of the ball bearing adjusting plate E and the ball bearing retainer G.
Fig. 9 is a modified way of constructing our ball bearing adjustment and
retainer. This modification consists in dispensing with the screw stud F, and
substituting therefore an integral stud G₁ on the ball retainer G. Figure 10 is
a modification of the end view shown in Figure 2, wherein the foot tread rods
are thrown off the centre. This increases the leverage in the direction of the
extended tread rod.
The case A is slightly modified in shape from that shown in Figure 1 con-
forming to the structural requirements of the modification.
A is a casing consisting of a ring shaped frame with two depending mem-
bers A A to which depending members the foot tread rods C, C, are secured.
The frame A is open forward and rearward: it is half conical in shape as shown
at A, Figure 4. E is a ball bearing adjusting plate. It is screwed to the
G is an annular head
casing A and carries a half cone shaped inner wall e.
within the casing having a ball bearing retaining peripheral groove and a
lateral extending hub S which hub passes through the back of the casing A.
Hare the ball bearings, carried on the periphery of the head G and the conical
walls e and A3 of the ball adjusting plate E and case A respectively. The lateral
walls of the head G should taper slightly in practice from the centre circum-
ferenceward. F, is a screw which passes through an opening in the plate E,
also through the head G and is fixed to the crank arm B. The modification
already described and shown in Figure 10 obviates the necessity for this screw.
I is a locking device for locking the plate E carrying the ball bearing engaging
cone e. It consists of a plate held to the casing A, and having a stud or pro-
jection 1, which latter is adapted to engage in any one of the holes J of the
plate E, thus holding the said plate locked in any fixed position desired, as is
obvious. The series of holes J in the plate E aforementioned are adapted to be
engaged by a suitable wrench whereby the said plate can be rotated and its
cone e, adjusted. C as already mentioned is the tread of a bicycle pedal. It
consists of two bolts which are secured to the casing A, and separated from each