Improvements in Apparatus for Use in the Manufacture of Armour Plates or other Forgings.
Year: 1896

page_text: Date of Application, 2nd July, 1896
Complete Specification Left, 2nd Apr., 1897-Accepted, 8th May. 1397
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Use in the Manufacture of Armour
Plates or other Forgings.
I, MANASSAH GLEDHILL, Director of Sir Joseph Whitworth & Co. Limited,
of Openshaw, Manchester, in the County of Lancaster, Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to further improvements in apparatus such as that described
in the Specification of my former Letters Patent dated May 22nd 1895 No. 10143,
the said apparatus being combined with a hydraulic press for supporting the armour
plates or other bodies therein during the forging of the same.
As stated in the said specification the metal is worked by squeezing it between
the upper and lower swage-blocks of the press and at each stroke of the latter the
said swage-blocks squeeze and displace some of the metal, thereby diminishing the
thickness of the plate and forming a shoulder thereon. As the squeezed and
reduced portion of the plate rests on the lower swage-block this shoulder would
prevent the forward movement of the plate to bring it into the position for the next
squeeze of the press. Therefore provision has to be made for raising the plate clear
of the lower block when the upper block rises after each squeeze.
For this purpose I provided the press with the apparatus described in the said
former specification which apparatus is characterized by the employment of
transverse rollers for supporting the plate or other object the said rollers being
automatically adjustable for raising the same clear of the lower block after each
squeeze. The rollers as described in the said specification are suspended from the
piston rods of hydraulic cylinders arranged overhead or in any convenient position
relatively to the press.
According to my present invention I now employ an improved form or
modification of the said apparatus which I construct and combine with the press as
follows:-That is to say, I arrange rollers extending across the press in the proper
position to support the armour plate or other object being forged but instead of
suspending the roller-hearings by chains or the like depending from the ends of the
piston-rods of the hydraulic lifting cylinders I now support the said rollers by
their journals in the ends of horizontal pivotted beams or levers arranged in pairs
and with their fulcrums or pivots carried by blocks or brackets at the sides of the
press. These pivoted beams or levers rest on transverse or cross bars or beams
which are preferably arranged between the fulcrums or pivots and the free ends
of the levers and are connected to the lower ends of rods or chains suspended
from the piston-rods of the hydraulic lifting cylinders. Therefore a slight
movement of the piston rods will suffice for the adjustment of the rollers. Valves
or other appliances are employed for ensuring the automatic operation of the
hydraulic pistons in the manner and with the effect described in my said former
specification.

page_text: Improvements in Apparatus for Use in the Manufacture of Armour
Plates or other Forgings.
I. MANASSAH GLEDHILL, Director of Sir Joseph Whitworth & Co. Limited,
of Openshaw, Manchester, in the County of Lancaster, 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 relates to further improvements in apparatus such as that described
in the Specification of my former Letters Patent dated May 22nd 1895 No. 10143,
the said apparatus being combined with a hydraulic press for supporting the armour
plates or other bodies therein during the forging of the same.
As stated in the said specification, the metal is worked by squeezing it between
the upper and lower swage-blocks and at each stroke of the press the said swage-
blocks squeeze and displace some of the metal, thereby diminishing the thickness
of the plate and forming a shoulder thereon. The squeezed and reduced portion of
the plate then rests on the lower swage-block, and while the plate is in this position
this shoulder will prevent the forward movement of the plate for bringing it
into the position for the next squeeze of the press. Therefore provision has to
be made for raising the plate clear of the lower block when the upper block rises
after each squeeze.
For this purpose I provided the press with transverse rollers for supporting the
plate or other object, the said rollers being automatically adjusted for raising the
same clear of the lower block after each squeeze. The rollers, as described in
the said specification, have their bearings suspended from the piston rods of
hydraulic or other cylinders arranged overhead.
Now according to my present invention I support the rollers by means of
approximately horizontal pivoted beams or levers, which rest on cross-bars
connected to rods or chains suspended from the piston rods of the lifting
cylinders.
In order that my said invention may be clearly understood and readily carried
into effect I will proceed to describe the same fully with reference to the
accompanying drawings in which :-
Figure 1 is a side elevation,
Figure 2 a sectional front elevation, and
Figure 3 a horizontal section on the line xx of Figure 1, showing a forging press
with my improvements applied thereto.
a and a represent respectively the upper and lower swage blocks of the press,
bb represent the transverse rollers for lifting the armour 'plate c or other object
which is being forged. dd represent the approximately horizontal pivoted beams
or levers whereby the said rollers are supported, the journals e of the rollers being
mounted directly in the ends of the said levers. The fulcrums or pivots of the
levers are arranged at one end thereof as shown at f, and are carried by blocks or
brackets g secured at the sides of the press. hh are the cross bars on which the
pivoted beams or levers rest and through the medium of which they are operated.
These cross bars are connected by shackles i to rods i coupled to the piston rods or
rams of the hydraulic cylinders k. It will be obvious that the slight lifting
movements or adjustments required to enable the shoulder el formed on the plate c
by the swaging operation, to clear the anvil a', can be imparted to the plate c
through the medium of the aforesaid levers rods and rollers by a very slight
movement of the pistons or rams l.

page_text: Valves and other appliances are employed for ensuring the automatic operation
of the hydraulic pistons in the manner and with the effect described in my former
specification.
In some cases instead of the journals of the lifting rollers being mounted directly
in the ends of the levers d, they may be mounted in bearings adapted to be raised
and lowered by the levers d.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. In apparatus for use in the manufacture of armour plates and other forgings,
the combination with the transverse lifting rollers of pivoted beams or levers
actuated by hydraulic pistons, substantially as described and for the purpose
specified.
2. The improved apparatus for use in the manufacture of armour plates or other
forgings combined with, the press and operating substantially as herein before
described with reference to the accompanying drawings.
Dated this 2nd day of April 1897
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.