Variable-Speed-Transmission Gearing. Page: 5 of 7
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1,155,597
Thus, when the slide 18 is reciprocated, the
shaft 9 will be reciprocated for shifting the
gear 12 properly.
A standard 21.has its lower end received
5 by the.slide 18, and the gear. 4 is journaled
through the. upper end of the standard 21.
The lower end of the standard or pedestal
21 has a pin 22 working in arcuate slots 23
formed in the sides of the slide 18, whereby
10 the gear 4 will be shifted laterally or verti-
cally properly when the slide 18 is recipro-
cated.
.As a means for manually operating or set-
ting the slide 18, a hand lever 24 is ful-
's crumed to the lower portion of the frame 1
between the ends of the frame, and projects
upwardly at one side of the frame. A link
25 connects the lever 24 and slide 18 so that
when the lever is oscillated, the slide will be
20 reciprocated.
The clutch member 10 is operated by a
bell crank lever 26 which has its elbow por-
tion fulcrumed, as at 27, to the frame, and
one arm, designated 28, of the lever 26 is
25 operatively engaged .to a grooved portion
of the clutch member 10, whereby when the
lever 26 is oscillated, the clutch member 10
will be moved into.and out of engagement
with the clutch member 11.
30 The frame 1 has a horizontal bar 29 along
which the hand lever 24 swings, and the bar
29 has a series of notches 30, 31, 32 and 33
into which the hand lever 24 springs by its
tension. The hand lever 24 is resilient for
35 this purpose, and normally springs into one-
of the said notches,.so that it is necessary to
manually swing the lever out of the respec-
tive notch before the lever can be.swung for
actuating the slide 18. The other arm 34 of
40 the bell crank lever 26 extends. along the
notched edge of the bar 29, and the hand le-
ver 31 is disposed between the bar 29 and
the arm 24 of the lever 26. The arm 34
bears against the lever 26, whereby when the
45 lever 26 is moved out of the respective notch
of the. bar 29, the arm 34 of the lever 26
will be forced outwardly, and this will so
swing the lever 26 as to disengage the clutch
member 10 from the clutch member 11.
50 This arrangement is of advantage since it
causes the clutch to be opened when the
gears are shifted to a new position, as will
hereinafter more fully appear.
A slide 35 is slidably carried by the slide
55 18 in any suitable manner, and a pinion 36
is rotatably carried by the slide 35 in any
suitable manner, and projects toward the
gear 4, adjacent, but behind, the gear 12.
The pinion 36 has a cylindrical toothed por-
60 tion 37, and a tapered or frusto-conical
toothed portion 38. The toothed portion 37
of the pinion- 36 is engageable with the
toothed portion 13 of the gear 12, and the
toothed portion 38 of the pinion 36 is en-
65 gageable with the toothed portion 15 of thegear 4. The toothed portion 14 of the gear
12 is engageable with each of the toothed
portions of the gear 4.
A lever 39, fulcrumed at 40 to the frame
1, is employed for shifting or advancing the 70
slide 35 at. the proper time, a coiled wire
spring 41 being secured between .the slide
35 and .one arm 42 of the lever 39. The
other arm 43 of the lever 39.has its. free
end coperable with the hand lever 24 where- 75
by when the hand lever 24 is swung from
the slot 31 to the slot 30, the lever 39 will
then be properly swung for advancing the
slide 35.
Presupposing that the parts are arranged 80
as illustrated in Figs. 1, 2 and 6, the gearing
will be arranged in low or first speed for-
ward. With the gears in low speed posi-
tion, the toothed portion. 14 of the gear 12
is intermeshed with the toothed portion 15 85
of the internal gear-A4, and the slide 18 is
held at proper position by the hand lever
24 which is received by the notch 31. When
the slide 18 is in this position, the pin 22
will be raised by theslots 23 of the slide 18, 90
to lift the standard or pedestal 21, and this
will swing the gear 4 upwardly properly,
so that the. toothed- portion 13 thereof will
be engaged to the toothed portion 14 of the
gear 12. When the lever 24 is received by 95
the notch 31, the lever 26 will be swung un-
der the influence of a. spring .44 attached
thereto, to swing the clutch member 10 into
engagement with the clutch member. 11 and
the tubular shaft 9 will thus be rotated with 1
the shaft 2. The gear 12 being rotated with
the shaft 2 and engaging the gear 4, will
cause the gear 4 to be' rotated, but at a
slower velocity than the shaft 2. . The ve-
locity between the driving and driven ele- 105
ments is thus of the proper ratio to propel
the motor vehicle relatively slow. Ordi-
narily, the lever 39 remains stationary.un-
der the influence of a spring 45 attached to
it, whereby the slide 35 is. held back, to 110
thereby hold the pinion 36 in retracted po-
sition out of engagement from the gears 12
and 4.
When a higher speed is desired, the hand
lever 24 is first shifted outwardly or side-. 11
wise to remove it from the notch 31, and this
will swing the lever 26 to open. the clutch,
since the clutch member 10 wil be shifted
out of engagement from the clutch member
11 and this Will break the connection be- 12C
tween the driving and driven elements. The
lever 24 may then be swung into the notch
32, and this will move the slide 18 in the
proper direction, to move the.gear 12 far-
ther into the internal gear 4 and at the same 125
time, due to the interengaging portions of
the standard 21 and slide 18, the standard 21
will be lowered slightly. This will result
in the gear 4 being swung downwardly
slightly, so that the gear 12 being moved ] 300.
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Maschek, Henry. Variable-Speed-Transmission Gearing., patent, October 5, 1915; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth859979/m1/5/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.