An Improved Train and Locomotive Brake.
Year: 1890

page_text: Date of Application, 8th Apr., 1890-Accepted, 10th May, 1890
'COMPLETE SPECIFICATION.
An Improved Train and Locomotive Brake.
I REGINALD HADDAN of the firm of Herbert & Co. Patent Agents of 18 Buckingham
'Street, Strand W.C. in the County of Middlesex, Civil Engineer do hereby declare the
nature of this invention, a communication to me from abroad by Robert Weigel of
New York in the United States of America, Engineer and in what manner the same
is to be performed to be particularly described and ascertained in and by the following
statement :-
The object of this invention is to provide a new and improved auxiliary brake for
locomotives and railway trains which can readily be applied to stop and check the
entire train instantly.
The invention consists in the construction and combinations of parts and details
as will be fully described hereinafter and finally pointed out in the claims.
:
In the accompanying drawings Fig. 1 is a side view of a locomotive tender and car
provided with my improved auxiliary brake.
Fig. 2 is a side view of a locomotive wheel and a tender and car wheel provided
with my improved brake the parts being shown in the position that they have when
the brakes are not applied.
Fig. 3 is a similar view showing the positions the parts have when the brakes; are
applied.
Fig. 4 is a side view of the clutching device on the locomotive axle.
Fig. 5 is a cross sectional view of the box on the tender or car axles.
Similar letters of reference indicate corresponding parts.
On the rear axle A of a locomotive the two sliding clutch collars B are mounted in
such a manner that they rotate with the axle and slide on the saine, which clutch
collars are adapted to engage a pulley C loosely mounted on the axle A. The clutch
collars B are connected by levers B₁ B and B with a lever B in the cab so that the
engineer by depressing one end of the lever B₁ can engage the clutch collars B with
pulley Cthus locking the said pulley on the axle. Adjacent to the rear wheel of each
car truck the rear wheel of each tender truck, and the rear wheel of the locomotive a
brake shoe D is provided and hung in the usual manner. The brake shoe D of
the rear locomotive wheel is connected by a chain D'in which a spring D' is arranged
with the pulley C. On the axle of the rear wheel of each tender and car truck a
box His loosely mounted which has a curved side H provided with a slot H³, the axle
passing through inclined slots J in the sides of the box.
Within each box a disc K is rigidly mounted on the axle which discs are each provided
with two opposite hook prongs K' that can enter the slot H' of the corresponding box H.
The brake shoes D of each rear wheel of the tender and car trucks are connected by.a
chain N provided with a spring N' with the top of the box H of the corresponding.
axle. The boxes H are suspended at their top by chains O from the bottom of
the car.
Bars P are connected with the pulley C on the locomotive axle and the boxes H on
the rear axle of the front tender truck and bars P connect the box H on the rear
axle of the front tender truck with the rear axle of the rear truck of the tender and in
a like manner the boxes H on the several rear axles of the several trucks are
connected with each other. The brake shoes are secured to brake beams which
are supported or hung in the usual manner. but are not shown as they form no
essential part of this invention.
The operation is as follows.
Ordinarily when the brake is not applied the box H and connecting bars and the
pulley Care in the position shown in Fig. 2. The disks K can now revolve in the
boxes H and the book pronas K1 do not engage the slots of the boxes When

page_text: the train is to be stopped the clutch collars B are engaged with the loose pulley C
whereby said pulley is rotated in the direction of the arrow r. Fig. 2 and draws the
brake shoes D against the rear wheels of the locomotive and at the same time draws
the bars P and P¹ in the direction of the arrow x². Thereby the upper ends of the
boxes are swung downward and in the direction of the arrow a¹ and the lower ends
are swung upward and in the reverse direction of the arrow so that the prongs K¹
of the discs K fixed on the axles can pass into the slots H* of the boxes H. Thereby
the axles and the wheels on the same are prevented from rotating. By the movements
of the upper ends of the boxes in the direction of the arrow ¹ the brake shoes D
adjacent to the wheels are pressed against the rims of the wheels by the chains N.
By locking the pulley C on the locomotive axle all the brake shoes D are pressed
against the wheel and at the same time the several axles and wheels are, prevented
from rotating.
After the train has been stopped it is moved backward slightly whereby the boxes H
are brought back into the position shown in Fig. 2.
This improved brake is only to be used as an auxiliary brake or in other words it
is only. to be used in case of an emergency for example in order to avoid collision.
Ordinarily the usual hand, air vacuum or steam brake is to be used.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is.
! 1. In a locomotive the combination, with one of the axles, of a loose pulley on the
same, means for locking said pulley on the axle, brake shoes adjacent to the wheel
rims, and chains connecting the brake shoes with said loose pulley substantially as
set forth.
2. In a locomotive, the combination with one of the axles of a loose pulley on
the same, means for lecking the pulley on the axle, brake shoes adjacent to
the locomotive, and car wheels connected with said loose pulley substantially as
'set forth.
:
3. The combination with a car axle, of a pronged disc fixed rigidly on the same, a
box having slots in its sides through which slots the axle passes which box also has a
curved side provided with a slot and connecting bars connecting the boxes with each
other substantially as set forth.
4. The combination with a car axle of a pronged disc fixed rigidly on the same, a box
having slots in its sides through which slots the axle passes which box also has a
curved side provided with a slot, connecting bars connecting the boxes on the axles
with each other and a brake shoe connected with each box substantially as set
forth.
5. The combination with a locomotive and cars of a loose pulley on the locomotive
axle means for locking said loose pulley on the locomotive axle, brake shoes for the
locomotive wheels connected with said loose pulley, brake shoes for the car wheels
swinging boxes on the car wheel axles fixed prong discs on the axles within the boxes
and rods connecting said boxes with each other and the loose pulley on the locomotive
axle substantially as set forth.
Dated this 8th dow of Anvil 1900
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.