Improvements in Dogs or Tongs for Lifting Hot Blooms, Ingots, or Slabs.
Year: 1894

page_text: Date of Application, 16th Oct., 1894
Complete Specification Left, 16th Aug., 1895-Accepted, 28th Sept., 1895
PROVISIONAL SPECIFICATION.
Improvements in Dogs or Tongs for Lifting Hot Blooms, Ingots,
or Slabs.
THOMAS WILLIAMSON, of Netherton House, Wishaw, in the County of
Lanark, Steel Works Manager, do hereby declare the nature of this invention to
be as follows:-
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$7.
This invention relates to lifting dogs or tongs for raising and lowering hot
blooms, ingots or slabs, and it has for its object the provision of means whereby
such dogs or tongs may be manipulated to engage with and disengage the hot metal
from a distance such that, the workmen handling the material may avoid being
subjected to its intense heat.
The tongs and the links suspending them form as usual an. articulated frame of
diamond shape which is hung from the hook of a crane. On one of the links or
members of this frame a lever is centred and has jointed to it one end of a link whose
other end is connected to a toggle lever jointed to the arms of the tongs forming
the lower part of the articulated frame. The opposite end of the lever is provided
with a socket for attachment of a handle by means of which the toggle lever is
operated to act on the tongs and open or close them. The gripping ends of the
tongs may be pointed to catch and grasp the hot bloom or slab or they may be
flattened to pass under a slab.
Dated this 15th day of October 1894.
WALLACE FAIRWEATHER,
Chartered Patent Agent,
62 Saint Vincent Street, Glasgow, Agent for the Applicaut.
Improvements in Dogs or Tongs for Lifting Hot Blooms, Ingots,
or Slabs.
I, THOMAS WILLIAMSON, of Netherton House, Wishaw, in the County of
Lanark, Steel Works Manager, 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 lifting dogs or tongs for raising or lowering hot blooms,
ingots or slabs, and it has for its object the provision of means whereby such dogs
or tongs may be manipulated to engage with and disengage the hot metal from a
distance such that the workmen handling the material may avoid being subjected to
its intense heat.
The invention is illustrated by the accompanying drawings, Figure 1 being an
elevation of the dogs shewing them in the gripping position and Figure 2 a like
view of a modification.
The tongs A and the links B suspending them form as usual an articulated frame
of diamond shape which is hung from the hook C of a crane. On one of the links
or members B of this frame a lever D is centred at E and has jointed to it one end

page_text: of a link F whose other end is connected to a toggle lever G jointed at H to the
arms of the tongs A forming the lower part of the articulated frame, as at
Figure 1 or to the links B as at Figure 2. The opposite end I of the lever D is
provided with a socket for attachment of a handle or is shaped as shewn to enter
a socket J on a hand bar K by means of which the toggle lever G is operated to
act on the tongs A and open or close them. The gripping ends L of the tongs
may be pointed to catch and grasp the hot bloom or slab M or they may be flattened
to pass under a slab
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. Lifting dogs or tongs constructed substantially as described with reference to
the annexed drawings.
2. The combination with lifting dogs or tongs of a toggle lever jointed thereto
and connected to an operating handle for opening and closing the tongs substantially
as described.
...
1000
WALLACE FAIRWEATHER,
Chartered Patent Agent,
62 Saint Vincent Street, Glasgow, Agent for the Applicant.