Improvements in Forging Presses and in Apparatus for Handling Heavy Forgings.
Year: 1890

page_text: Date of Application, 11th Jan., 1890
Complete Specification Left, 11th Oct., 1890-Accepted, 15th Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in Forging Presses and in Apparatus for Handling
Heavy Forgings.
I, BENJAMIN WALKER, of Hunslet, Leeds, in the County of York, Engineer, do
hereby declare the nature of this invention to be as follows:-
This invention has for its object improvements in forging presses and in apparatus
for handling heavy forgings.
Two forging presses are provided, the one vertical and the other horizontal.
These presses are close together and the work is conveyed from one to the other to
receive vertical or horizontal pressure as may be required.
Two carriages or trollies are employed to carry the work and these can be traversed
along guide rails to and from the anvil of the vertical press.
The carriages work on opposite sides of the anvil each on its own guide frame.
Each guide frame is carried by two standards which can move vertically in bearings
on the frame. The lower end of each standard forms a ram and the guide frames
are supported by hydraulic pressure.
The work whilst on one of the carriages can be traversed to and fro between the
rams and squeezers of the horizontal press. The same carriage can carry the work
to the vertical press and it is raised sufficiently high to pass the work over the anvil.
When the upper ram or squeezer of the vertical press descends the carriage sinks
out of the way. The work can be passed over the anvil from one carriage to the
other and in some positions it will require to be supported by both the carriages
simultaneously. Each carriage is actuated by chains wound on to and from drums
on an horizontal axis and this axis is rotated in one direction or the other as may
be required by chains wound upon and drawn off from other drums mounted upon
the axis. A pair of hydraulic cylinders alternately haul upon these chains.
In some cases I substitute a pair of horizontal rolls for the vertical forging press.
Dated this 9th day of January 1890.
BENJAMIN WALKER.
COMPLETE SPECIFICATION.
Improvements in Forging Presses and in Apparatus for Handling
Heavy Forgings.
I, BENJAMIN WALKER of Hunslet, Leeds, in the County of York, Engineer, do
hereby declare the nature of this invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:
This invention has for its object improvements in forging presses and in apparatus
for handling heavy forgings.
Two forging presses are provided, the one vertical and the other horizontal.
These presses are close together and the work is conveyed from one to the other to
receive vertical or horizontal pressure as may be required.
Two carriages or trollies are employed to carry the work and these can be traversed
along guide rails to and from the anvil of the vertical press.
The carriage work on opposite sides of the anvil each on its own guide frame.
Each guide frame is carried by two standards which can move vertically in
bearings on the frame. The lower end of each standard forms a ram and the guide.
frames are supported by hydraulic pressure.

page_text: The work whilst on one of the carriages can be traversed to and fro between the
rams and squeezers of the horizontal press. The same carriage can carry the work
to the vertical press and it is raised sufficiently high to pass the work over the anvil.
When the upper ram or squeezer of the vertical press descends the carriage sinks
out of the way. The work can be passed over the anvil from one carriage to the
other and in some positions it will require to be supported by both the carriages
simultaneously. Each carriage is actuated by chains wound on to and from drums
on an horizontal axis and this axis is rotated in one direction or the other as may be
required by chains wound upon and drawn off from other drums mounted upon the
A pair of hydraulic cylinders alternately haul upon these chains.
axis.
In some cases I substitute a pair of horizontal rolls for the vertical forging press.
In order that my said invention may be fully understood and readily carried into
ffect I will proceed to describe the drawings hereunto annexed.
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Figure 2 is an end elevation, and
Figure 3 is a plan of apparatus in accordance with my invention.
Figures 4, 5 and 6 show the modification in which rolls are substituted for the
vertical forging press. Figure 4 is a side elevation. Figure 5 is an end elevation
and Figure 6 is a plan.
In Figures 1, 2 and 3 a a are foundation girders into which four columns bare
fixed and these carry cylinders c² c² c³ provided with rams. The lower forging block d
is carried by the girders a and the upper forging block e by the rams of the
cylinders c¹ c² c³.
According to the pressure required water from an accumulator or other source is
admitted to one or more of these cylinders. ff are small cylinders serving to lift
the rams and forging block e when the pressure is not on.
gg are standards firmly connected by tie rods g' g¹ and carrying the hydraulic
apparatus by which the work is squeezed horizontally.
This apparatus consists of hydraulic cylinders and parts ii similar to the hydraulic
apparatus above described for the application of pressure vertically. kk are the
forging blocks between which the horizontal nip occurs.
1 are the trolleys for carrying the work and m m are the guide frames on which
the trolleys run. The guide frames m are fixed to standards n n which are able to
move up and down a short distance in suitable guides. The standards n n at their
lower ends are formed as rams and they enter hydraulic cylinders oo to which the
pressure is always on. Thus the guide frames m are resilient; when the upper
forging block e descends on to the work the guide frames m yield to the pressure
until the work becomes supported by the lower forging block d and immediately the
block e retires the guide frames m rise sufficiently to lift the work off the lower
block d so that the trolleys may carry it freely over the block to the position which
it is next required to take.
Each trolley has an endless chain attached to it which passes over guide
pulleys p p to a drum g to which the chain is attached and upon which it is wound.
Other smaller druns q¹ q¹ are upon the axis of the drum and other chains are
wound upon them. The drums are rotated by hydraulic cylinders 2 which by
pulling alternately on the chains around the drums q' q' wind and unwind them and
so the drums are turned and the trolleys are traversed along the guide frames.
Valves are provided to admit water under pressure to the several hydraulic
cylinders and to allow its escape therefrom, these are arranged as is usual in
hydraulic apparatus of this class and no detail description of them is necessary.
In Figures 4, 5 and 6 A A are the horizontal hydraulic squeezers, B B are
the rolls and CC are live rollers on which the work is conveyed from one to the
other.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what
I claim is :-
--
1. The combined apparatus substantially as described consisting of a vertical
squeezer, a horizontal squeezer, a pair of resilient guide frames, two trolleys and
apparatus for traversing the trolleys along the guide frames; the whole so arranged
that the work whilst supported by one or both of the trolleys may be exposed to
vertical and lateral pressure as required.
2. The combination substantially as described of a vertical squeezer, a pair of
resilient guide frames, trolleys and apparatus for traversing the trolleys along the
guido frames.
3. The combination substantially as described of hydraulic squeezers and rolls and
apparatus for conveying the work from the one to the other as herein set forth.
4. Apparatus substantially as described and represented by the annexed drawings.
Dated this 10th day of October 1890
B. WALKER.