IMPROVEMENTS IN THE MANUFACTURE OF SPRINGS FOR LOCOMOTIVES AND VEHICLES USED ON RAILWAYS, TRAMWAYS, COMMON ROADS, AND THE LIKE PURPOSES
Year: 1886

page_text: and the like Purposes,
We, ROBERT WOODWARD, Steel Manufacturer, and -ALFRED ERNEST WELL'S, Steel
Works Manager, both of the Clyde Steel Works, Sheffield in the County of York,
do hereby declare the nature of our said invention for "IMPROVEMENTS IN THE
MANUFACTURE OF SPRINGS FOR LOCOMOTIVES AND VEHICLES USED ON RAILWAYS,
TRAMWAYS, COMMON ROADS, AND THE LIKE PURPOSES," to be as follows:-
.
Our Invention relates more particularly to the class of laminated bearing
carrying, draw or buffing springs commonly used on locomotive engines, railway
and tramway vehicles' and which are constructed of several layers of curved steel
plates varying in length closely fitted together and secured in the middle by a bolt
or pin and a forged wrought iron or steel hoop. -
Hoops for this purpose are made in a variety of forms sometimes perfectly plain
and rectangular, sometimes they are made with projections called paps (to fit corre-
sponding recesses in the axle boxes or elsewhere,) sometimes they are made with
flanges, lugs or brackets which act as guides or for the reception of bolts, and some-
times they are made with both paps and flanges, lugs or brackets, and so forth.
In any case a superior quality of iron or special temper of steel has to be
employed and great care has to be exercised in welding and forging such hoops,
some of the forms, necessitating the use of special tools and in most cases their
manufacture is difficult and costly.
:
The object of our Invention is to overcome this difficulty and materially to
reduce the cost of manufacture by substituting for the forged wrought iron .or
forged steel spring hoops herein described, hoops cast in steel, either from steel
produced in crucible pots or from the Siemen Bessemer or other processes by
which steel castings may be produced suitable for the purpose.
Spring boops thus cast in steel may be moulded from a pattern or patterns
either in the ordinary or by any process of plate or machine moulding and they
may afterwards be annealed or otherwise prepared for use as circumstances may
require

page_text: We lay no claim however to the means. by which such hoops may be moulded,
cast, or prepared for use, the essential feature of our Invention being; in the appli-
cation of castings in steel in lieu of forgings in iron or steel in making hoops for
use in the manufacture of springs as herein described.
1
0
2 A
1000
We ROBERT WOODWARD, Steel Manufacturer, and ALFRED ERNEST WELLS, Steel
Works Manager, both of the Clyde Steel Works, Sheffield in the County of York,
do bereby declare the nature of our said invention for "IMPROVEMENTS IN THE
MANUFACTURE OF SPRINGS FOR LOCOMOTIVES AND VEHICLES USED ON RAILWAYS,
TRAMWAYS, COMMON ROADS, AND THE LIKE PURPOSES," and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement:
Our Invention relates more particularly to the class of laminated bearing,
carrying, draw or buffing springs commonly used on locomotive engines, railway
and tramway vehicles and which are constructed of several layers of curved steel
plates varying in length closely fitted together and secured in the middle by a bolt
or pin and a forged wrought iron or steel hoop.
Hoops for this purpose are made in a variety of forms sometimes perfectly plain
and rectangular, sometimes they are made with projections called paps (to fit corre-
sponding recesses in the axle boxes or elsewhere,) some times they are made with
flanges, lugs, or brackets, which act as guides or for the reception of bolts, and some-
times they are made with both paps, and flanges, lugs or brackets and so forth.
In any case a superior quality of iron or special temper of steel has to be
employed and great care has to be exercised in welding and forging such hoops,
some of the forms necessitating the use of special tools, and in most cases their
manufacture is difficult and costly.
The object of our Invention is to overcome this difficulty and materially to
reduce the cost of manufacture by substituting for the forged wrought iron or
forged steel spring hoops herein described, hoops cast in steel, either from steel

page_text: produced in crucible pots or from the Siemens Bessemer or other processes by
which steel castings may be produced suitable for the purpose.
Spring hoops thus cast in steel may be moulded from a pattern or patterns
either in the ordinary or by any process of plate or machine moulding, and they
may afterwards be annealed or otherwise prepared for use as circumstances may
require.
We lay no claim however to the means by which such hoops may be moulded,
cast or prepared for use, the essential feature of our Invention being, in the appli-
cation of castings in steel, in lieu of forgings in iron or steel, in making hoops for
use in the manufacture of springs, as herein described.
Having now particularly described and ascertained the nature of our Inven-
tion and in what manner the same is to be performed, we declare that what
we claim is:—
(1) The manufacture of hoops for springs, cast in steel, substantially as described.
(2) The use and application of hoops cast in steel, in the manufacture of springs,
substantially as described.
(3) The improvements in the manufacture of springs for locomotives, and vehicles,
used on railways, tramways, common roads, and the like purposes, substantially as
herein described, and set forth.