Changeable Gearing. Page: 3 of 3
[1], 2 p. : ill. ; 23 cm.View a full description of this patent.
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665,594
ing the speed- of; the sprocket. When it is de-
sired to have the sprocket rotate with the-
shaft or axle, the pin 329 is withdrawn from
the perforations of the crank-hanger and disks
5 and is inserted in alined perforations 34 and
35 in the axle:and the;hub of gear 25,'respec-,
tively. With this construction it will be-seen
that the sprocket is locked to rotate with the'
crank-axle in one direction, while it may ro-
io tate freely of the axle in the opposite direc-K
tion, and, furthermore, that the sprocket may
be locked to rotate with the axle or may be
caused to-rotategat a higher-speed -than'the
axle.
15 It will be understood that in practice vari-
ous modifications of the specific construction.
shown may be made and that any suitable
materials and proportions may be used for'
the various parts without departing from the'
20 spirit of the invention.
What is claimed is-
1. A changeable gear comprising an axle,'
a hub mounted loosely upon the axle, a ratchet
fixed upon the shaft at each side of the'hub
25 and in contact therewith to prevent move-
ment of the hub longitudinally of the shaft,
pawls carried by the hub for engagement with
the ratchets for rotating the hub when the
axle is rotated in one direction and to permit
30 free rotation of the hub in the opposite direc-
tion, stub-shafts upon the hub, gears carried'
by the stub-shafts and movable bodily there-with about the axle, gears mounted loosely
upon the axle-and engaging the gears upon
the hub, a driven member carried by one of 35
the gears upon the axle and means for lock-
ing the second gear alternately to rotate with
the axle: and against rotation with the axle.
- 2. A changeable gear comprising an axle,
a casing inclosing a portion of the axle, stub- 40
shafts carried by the axle, bevel-gears upon
the stub-shafts, bevel-gears loose upon the
axle and engaged with the gears upon the
stub-shafts, a driven member carried by one
of -the gears upon the shaft, the second gear 45
of the shaft having its huh extended exteriorly
of the casing, said extending portion having
a perforation therein, and the shaft having a
perforation for alinement with 'the perfora-
tion of the;gear-hub,-a pin for engagement i o
with said perforations:to lock the gear to the
shaft, and a disk upon said' gear and having
a perforation 'for alinement with a perfora-
tion in the casing, the perforations of the disk
and casing being adapted to receive the pin 55
interchangeably with its engagement with the
shaft and gear thereon.
In testimony that I claim the foregoing as
my own I have hereto affixed my signature in
the presence of two witnesses.
ALFORD 'BRADY.
Witnesses:
I. LOVENBERG, Jr.,
F. L. LEE.2
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Brady, Alford. Changeable Gearing., patent, January 8, 1901; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth508294/m1/3/: accessed June 27, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.