Motor-Bicycle Page: 3 of 4
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UNITED
STATES
PATENT OFFICE.
EDWARD Y. WHITE, OF SAN ANTONIO, TEXAS.
MOTOR-BICYCLE.
SPECIFICATION forming part of Letters Patent No. 675,458, dated June 4, 1901.
Application filed November 8, 1900. Seial No. 35,858 (No model.)to al wI liOb7t imay conRcerm-
Be it known that I, EDWARD Y. WHITE, re-
siding at San Antonio, in the county of Bexar
and State of Texas, have invented certain new
5 and useful Improvements in Motor-Bicycles,
of which the following is a specification, ref-
erence being had therein to the accompany-
ing drawings.
This invention relates to motor-bicycles.
10 The object of the invention is to produce a
frame in which the motor shall be firmly
supported without undue strain on any part
of the machine and in which the weight of
the motor shall be as low as may be and to
15 connect the motor to the driving-axle in such
way that a pedal shall also be utilized for
driving the machine with little interference
from the motor and with a proper balance of
friction and to improve certain details and
20 combinations of the driving-gear, as will be
hereinafter explained.
Figure 1 is a perspective view of the main
parts of the frame, the wheels broken and
driving-gear omitted. Fig. 2 is a broken side
25 view of part of the frame with the motor and
driving-pedal in position. Fig. 3is an eleva-
tion of the gear mechanism of Fig 2 looking
from the front, being a cross-section of the
machine just in front of the pedals Fig. 4
30 is an enlarged section on the irregular line 4 4
of Fig. 2.
The frame of the machine is in general a
modification of the well-known diamond
frame having the top bar 1, lower frame-bars
35 2 2, front braces 3 3 and rear braces 4 4, and
the front standard 5, all arranged about as
shown clearly in Fig. 1. The motor-frame,
cradle, or basket consists of two bars 6 6,
each connected at top to bar 1 and extending
40 outward from the top bar and dropping to
form a loop. The two loops are braced by
cross-bars 7 7 and are also connected to the
lower frame-bars 2 2 and braces 3 3. A cross-
bar 8 at the bottom of the cradle or basket
45 serves to support the power-motor. The two
bars 6 6 thus have two upright corner-posts
at the angles of a rectangle, and the power-
motor 10, inclosed between said corner-posts,
has its weight supported on cross-bar 8, the
50 spring 9 securing elasticity.
The power-motor 10 is of usual construc-
tion and is supported on a spring 9, whichspring rests on the cross-bar 8. The upper
part of the motor is held to a guide-plate 12
by bolts or screws 13 and 14. The plate 12 55
has its corners notched to partially surround
the uprigh tlimibs 66 of the basket,and a second
guide-plate 15, connected to the motor below
the motor-cylinder,is similarly notched. Thus
the motor is supported in its basket or cradle 6o
on the spring 9 and is free to rise and fall in
the basket, being guided by the upright por-
tions of bars 6 6. The gasolene-tank 16 may
be connected to plate 12 by screws 17 or in
any other suitable manner. 65
The shaft 20 of the motor carries a sprocket-
wheel 21, and a sprocket-chain 22 leads from
the said wheel 21 to a double or twin sprocket-
wheel 23 24, which runs loosely on the pedal-
shaft. The sprocket-wheel 23 24 is integral or 70
so connected that both sprocket-sections run
together, and the hub of this double sprocket
is preferably supported on ball-bearings 19 on
the pedal-axle, as will be explained. A chain
25 leads from the sprocket 24 to the driving- 75
sprocket 26 on the rear wheel, so that when
wheel 23 is driven from the motor its twin
sprocket 24 will drive the sprocket-driver.
The sprocket-chain 22 will yield enough to per-
mit the slight rise and fall of the motor in the 8o
frame, and this yielding will remove undue
strains from the frame and permit such elas-
ticity as insures strength to the frame and
comfort to the rider.
The pedal-shaft 30 is supported in suitable 85
bearings in the frame. Said pedal-shaft has
pedals 39 and a sprocket-wheel 31 attached
thereto, and a sprocket-chain 32 extends from
said wheel 31 to the driving-sprocket 33 on
the rear driving-axle. The sprocket 33 may 90
have any usual form of coaster or brake, so
that the driving mechanism is under control
of the pedals in the same manner as are bicy-
cles of usual construction whenever the driv-
ing-motor is at rest, and in driving the bi- 95
cycle by means of the pedals the chain 25
and sprocket-wheel 23 and 24 may run as
idlers, so that there is little loss of power by
reason of the extra set of driving-gears. As
the pedal-shaft thus has driving sprocket- ioo
chains at each side of the frame, it is impor-
tant that the driving-sprockets shall be sup-
ported on proper bearings at each end and in
position to have the wear-bearings taken up
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White, Edward Y. Motor-Bicycle, patent, June 4, 1901; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth513937/m1/3/: accessed April 16, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.