Turnstile. Page: 4 of 4
[2], 2 p. : ill. ; 23 cm.View a full description of this patent.
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1,099,754
spider 38 secured rigidly upon it and dis-
posed near the car ceiling. A lever 39 is
mounted in a bracket 40, the latter being
secured to the car ceiling and carrying a
5 pivot Tin 41 upon which the lever 39 is
journaled. A spring 42 is secured to the
lever 39 and to the car ceiling for the pur-
pose of retracting the lever .39. A stop pin
43 covered with rubber or other resilient
10 material is mounted partially within the
path of movement of the lever 39 and pre-
vents excessive movement thereof in one di-
rection. A cord 44 is connected at one of
its ends to the lever 39 and at its opposite
15 end is secured to the actuating arm 45 -of a
register 46. Another cord 47 is conned .ed
with the actuating arm 45 and extends to
the opposite end ofthe car where all of the
apparatus except the register 46 is dupli-
20 cated.
I. provide the casing 48 (see Fig. 5), which
is detachably. secured upon the sleeve 6 in
order to conceal and protect the spider 38,
lever 39 and parts immediately associated
25 therewith. This casing prevents the en-'
trance of dust and dirt and also improves
the appearance of the exposed parts.
The operation of my device is as follows:
The parts being assembled and arranged as'
30 above indicated, the conductor takes up his
position behind the hand rail 15 and the ap-
paratus is ready for use. Each passenger .
entering the car pushes one of the arnis 31
angularly around for a distance represent-
35 ing one-quarter of a revolution, the passen-
ger then entering the car through the door
9. The arm 31 thus pushed around by the
passenger next swings downwardly owing
to the fact that. its roller passes obliquely
40 downward in engagement with the ob-
lique face 24a of the cam plate 23. The
next successive passenger performs the same
operation by pushing against the next suc-
cessive arm 31. As each arm in successionreaches . the oblique portion 24 .of the cam 45
plate, the arm rides gradually upward until
it reaches a horizontal position. The pas-
sengers are prevented from entering the
door 10 by the adjacent arm 31 extending
directly toward the post 11. The number 50
of arms remaining extended at a particular
instant is governed by the. proportions of
the cam plate 23. In this particular in-
stance I show two arms as always ex-
tended, but I do not limit myself to this 55
precise number. Nor do I limit myself to
the precise construction herein shown, the
scope of my invention being commensurate
with my claim.
Having thus described my invention what 60
I claim as new and desire to secure by Let-
ters Patent is as follows:
A device of the character described -com-
prising a tubular sleeve secured fixedly in
position,. a cam plate mounted rigidly upon 65
said tubular sleeve and provided with a
bearing of substantially annular form, a
spider disposed adjacent said cam plate,-a
revoluble sleeve secured to said spider and
extending into said bearing of said cam 70
plate, a rod extending through said tubular
sleeve and said revoluble sleeve, an annular
head secured to said revoluble sleeve and
carrying a pinion, a spring pawl mounted
upon said cam plate and engaging said pin- 75
ion for the purpose of preventing said spider
from turning. in one direction, and a plu-
rality of arms . pivotally connected with
said spider for turning the same in one di-
rection, each of said arms being provided 80
with a portion for engaging said cam plate
for the purpose of guiding said arm into
different planes as said arms are turned,
so as to actuate said revoluble sleeve.
LEOPOLD W.. LOHRBERG.
Witnesses:
WALTON HAmlIsoN,
R. W. SMITH.2
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Lohrberg, Leopold W. Turnstile., patent, June 9, 1914; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth859511/m1/4/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.