Motor-Actuated Locking Device for Automobiles Page: 3 of 5
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UNITED STATESPATENT OFFICE.
ROBERT D. WHERRY, OF NECHES, TEXAS.
MOTOR-ACTUATED LOCKING -DEVICE FOR AUTOMOBILES.
1,322,171. Specification of Letters Patent. Patented Nov.18, 1919.
Application filed May 3, 1919. Serial No. 294,578.
To all whom it may concern: Fig. 4 is an enlarged detail view of the
Be it known that I, ROBERT D. WmERRY, a 'locking mechanism.
citizen of the United States, residing at - Fig. 5 is a sectional view on line 5-5 of
Neches,'in the county of Anderson and State Fig. 1, showing the curvature of the part'60"
5 of Texas, have invented certain new and 30, whereby its teeth may mesh with the
useful Improvements in Motor-Actuated teeth of the gear 20.
Locking Devices for Automobiles, of which Referring to the drawings, 1 designates a
the following is a specification, reference be- portion of the chassis- or frame, 2 the rear
ing had to the accompanying drawings. axle casing, and 3 the differential casing, 65
10 This invention relates to a motor actuated which is broken away, showing the rear axle
locking device for automobiles, and an object 4"'and the differential gears 5., Supporting
of the invention is to provide a locking de- wheels 6 are mounted upon the rear axle,
vice of this kind including means to be set and 7 denotes the motor driven shaft, the
and locked and means to be actuated by the rear end of which is mounted in bearings 70
15 motor driven shaft of the automobile, where- of the differential casing and in cooperation
by when an unauthorized person endeavors with the differential.
to move the car by pushing the same, or op- An abutment disk 8 is secured upon the
erating the shaft by the motor, the motor drive shaft 7 by the set screw or bolt 9, and
driven shaft will actuate parts of the lock- 10 denotes a coil spring. A second abutment 75
20 ing mechanism, thereby preventing the driv- disk- 11 is secured upon the drive shaft by
ing shaft from continuing its operations, means of a set bolt 12, and '13 and. 14 de-
hence preventing the unauthorized person note clutch members which are keyed to
from appropriating the automobile for per- rotate with the shaft 7 but movable axially
sonal use. thereon. The keyed connections are desig- 80
25 A further object of the invention is the nated by the numeral 15. A coil spring 16
provision of a locking mechanism, which is interposed between the clutch member 14
may operate when the driving shaft is op- and the abutment disk 11. The remote
erating the driving wheels forwardly, or faces of the clutch members 13 and 14 are
when operating them to drive the, vehicle recessed, as ,at 17, to be engaged by the coil 85
30 rearwardly. ' springs 10 and 16. The clutch members 13
While the design and construction at-pres- and 14 have clutch hubs 18 and 19, and
ent illustrated and set forth is deemed pref- mounted and threaded on the drive shaft
erable, it is obvious that as a result of a 7, is a central clutch member 20, provided
reduction of the invention to a more-practi- with opposite clutch hubs 21 and 229 pro- 90
35 cal form for commercial purposes, the in- vided with. clutch teeth 23. A lever 3.1,
vention may be susceptible to changes. and. which is pivoted at 32 to the frame, has a
the right to these changes is claimed, pro- slot and pin connection with a bell crank
vided they are comprehended within the lever 31a, which is pivoted at 31". This bell
scope of what is claimed. crank lever 31a is, in turn, connected to the 95
40 The invention comprises further features lever 3'3, which carries the gear rack 30 at
and combination of parts as will be herein- its rear end. The other end of the lever. 31
after set forth, shown in the drawings and is connected to- a link 34, which in 'turn is
claimed. connected to the lever 35. This lever 35 is
In the drawings: pivoted on the frame or chassis, as at 36, and loo
45- Figure 1 is a plan view of a portion of an its short arm is connected pivotally, at 37, to
automobile chassis, and. the rear axle cas- the link 34. This' lever 35 is designed to
ing, showing the same broken away, illus- be located near the seat of the automobile,
trating the differential, and also illustrating and when moved to its forward or rear posi-
the motor driven shaft, and the locking tion, any suitable means (not shown) may 105
Do mechanism applied thereto in plan. be employed for locking the lever -in such
-Fig. 2 is a sectional view through the same position.
showing the locking parts thereof in their When the lever' 35 is moved to 'its ex-
normal positions. treme backward position, and is locked by
Fig. 3 is a sectional viewishowing certain any suitable means (not shown), the, gear no
i5 of the parts as having beefs moved, to lock1 rack- will engage the clutch member 20 and
the driving shaft of the automobile. hold the clutch member 20 against revoly-
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Wherry, Robert D. Motor-Actuated Locking Device for Automobiles, patent, November 18, 1919; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1259517/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.