Year: 1897

page_text: Date of Application, 16th July, 1897- Accepted, 28th Aug., 1897
We, CHAREN, VANIVER RICHEY, Clerk, and LEONARD COLLINS BAILEY, Banker, both
Washington, in the County of Washington, District of Columbia, United States of
merica, do hereby declare the nature of this invention and in what manner the
me is to be performed, to be particularly described and ascertained in and by
e following statement :-
Our invention has relation to automatic railroad switches, and consists of certain
atures of construction and combination of parts which will be hereinafter fully
escribed and claimed.
Figure 2 is a side view;
Figure 3 is a sectional view on the line x-x of Fig. 1;
Figure 4 is a detail perspective view of parts hereinafter to be described;
Figure 5 is a perspective view of the tripping arın used to open the switch, showing
it attached to an engine; and
Figure 6 is a similar view of the tripping arm used to close the switch after the.
train has passed.
In said drawings, 1 denotes the rails of the main track, and 2 those of the switch.
3 denotes the switch tongues, which are connected together by a bar 4 seated on
anti-friction balls 5, located in casings 6 secured to one of the ties.
7 denotes a stand secured to the tie at a point adjacent to the free end of the switch
tongues. Pivoted to this stand is a trip-lever 8.
9 denotes a bell crank lever pivoted in a bracket 10 secured to the ties near the
switch tongues. One limb of this bell crank lever is connected to the trip by a
pitman 11, while the other limb is connected to one of the switch tongues, so that
when said trip is actuated, the switch tongues will be correspondingly moved.
12 denotes a spring secured within the stand, and provided with two recesses 13
adapted to be engaged by a pin 14 projecting laterally from the side of the trip, and
by means of which the trip is prevented from being accidentally moved by the
vibration of the track during the passage of a train.
15 denotes a bracket adapted to be secured to the front end of the locomotive, and
having at its lower end a bottomless box 16, to the rear end of which is pivoted an
arm 17.
18 denotes a cord which is passed through an aperture in the box and connected to
said arm, and extends into the cab within convenient reach of the engineer.
The switch tongues being in the position shown in Fig. 1, and it is desired to enter
the switch, the engineer draws upon the cord and raises the arm to the position
shown in full lines in Fig. 5. When the arın strikes the trip, it will automatically
open the switch.
To close the switch after the train has passed upon the switched track, we provide
an arm 19 which is pivoted in brackets 20 secured to the tie. This arm is connected
to a limb of the bell crank lever by a link 20¹, and is shorter than the trip 8, so that

page_text: the arm 17 of the locomotive will not engage it and return the switch tongue before
the train has passed.
A hinged arin 21 is secured to the rear end of the rear car of the train and projects
laterally, and is adapted to engage siid arm 19 and close the switch after the train
has passed. This arm is shorter than the arin 17, and will not touch the trip 8. In
order to close the switch should the train back out, therefrom, we provide a trip
arm 22 pivoted to a bracket 23 on the other side of the track, and connected to a
bell crank lever 24 by a rod 25. This bell crank lever 24 has a vertical pin 26 that
engages the free end of one of the switch tongues, whereby the tongues are thrown
to close the switch when a train backs out.
Having now particularly described and ascertained the nature of our said inven--
tion, and in what manner the same is to be performed, we declare that
what we claim is:
1.
1. In a railroad switch, the combination with the main track, of switch tongues
connected together and mounted upon anti-friction bearings, switch stands, a trip
arm pivoted in the stand secured to the ties and provided with a pin adapted to
engage the spring catch, a bell crank lever, a rod connecting one limb of the bell
crank lever to the trip, a link connecting one of the switch tongues to the other end
of the bell crank lever, a pivoted arm that is arranged nearer the track than the trip
aforesaid and is 'shorter than the same, a link connecting the arm to one of the limbs
of the said bell crank lever, a second bell crank lever arranged on the opposite side of
the track, and provided with a pin adapted to engage one of the switch tongues and
actuate the same, a'trip arm, and a link connecting the trip arm with said bell crank
lever, substantially as set forth.
2. The combination with a locomotive, of a bracket secured thereto and provided
with a bottomless box, an arm pivoted in said box; and a cord attached to said arm,
passing through an aperture in said box, and leading to the cab of the locoinotive,
substantially as set forth.
Dated this 12th day of Tu 1907
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.