Improvements in and relating to Furnaces for Heating Rods or Bars of Iron for Bolt Making Purposes.
Year: 1890

page_text: Date of Application, 7th Aug., 1890
Complete Specification Left, 4th May, 1891-Accepted, 18th July, 1291
PROVISIONAL SPECIFICATION.
Improvements in and relating to Furnaces for Heating Rods or
Bars of Iron for Bolt Making Purposes.
I, EDWARD HOLLINGWORTH, of Dobcross Loom Works, Dobcross, in the
County of York, Loom Maker, do hereby declare the nature of this invention to
be as follows (the said invention being a communication to me from abroad by
George Webb, of Pawtucket, Rhode Island, one of the United States of America,
Engineer) :-
:-
This invention consists in constructing, arranging, and combining certain forms
of mechanism for making a new description of furnace for heating short rods or
bars of metal from which to make bolts, nuts, and other like articles.
According to this invention, two or more furnaces, arranged back to back or
otherwise, are mounted upon a central pillar or standard capable of revolving upon
ball or other form of bearings, so that whilst the heated bars in one furnace are
being removed one by one for the manufacture of bolts, the furnace on the opposite
side may be being refilled and made ready for use, so that when one furnace is
empty, the compound or combined furnace may be revolved on the central pillar,
so as to bring another or newly charged furnace into position for the workman,
whilst the empty one may be again refilled.
In order to make the heat of the furnace tolerable to the workman, suitable
apertures or openings are made in the framework of the furnace, through which a
cold blast of air is blown to reduce the surrounding temperature for the purpose of
cooling the workman's hands when he is taking hold of a heated bar with pincers,
in addition to which, and for the same purpose, the front of the furnace is covered
by a jacket or hollow plate, through which a stream of cold water is made to
pass.
By the construction of a furnace for bolt making purposes such as that herein
described, made with more than one furnace, no time is lost in filling the furnace
and heating the metal to be ready for use; in addition to which, the application of
cold air, and the cold water jacket, enables the workmen to remain in proximity to
the machine without suffering from the heat thrown off by the furnace, whilst the
blast of cold air carries off and disperses the sulphuric fumes arising from the
furnace.
ليم
1
"
1000
TASKER & CROSSLEY,
Huddersfield, Agents.
COMPLETE SPECIFICATION.
Improvements in and relating to Furnaces for Heating Rods or
Bars of Iron for Bolt Making Purposes.
I EDWARD HOLLINGWORTH, of Dobcross Iron Works, Dobcross, in the
County of York, Loom Maker, 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 (the said invention being a communi-
cation to me from abroad by George Webb, of Pawtucket, Rhode Island, one of
the United States of America Engineer):
This invention consists in constructing, arranging, and combining certain forms
of mechanism for making a new description of furnace for heating short rods or
bars of metal from which to make bolts, nuts, and other like articles.

page_text: According to this invention, two or more furnaces arranged back to back or
Otherwise are mounted upon a central pillar or standard capable of revolving upon
ball or other form of bearings, so that whilst the heated bars in one furnace are
being removed one by one for the manufacture of bolts, the furnace on the opposite
side may be being refilled and made ready for use, so that when one furnace is
empty, the compound or combined fumace may be revolved on the central pillar,
50 as to bring another or newly charged furnace into position for the workman,
whilst the empty one may be again refilled. The invention also consists in causing
a blast of cold air to be blown in front of the furnace to cool the hands of the
workman, and also in the use of a cold water jacket for the same purpose.
Such being the nature and object of my said invention, I will now proceed to
describe the same more fully, and for that purpose make reference to the accom-
panying sheets of drawings illustrative thereof, wherein Fig. 1 is elevation of the
front side of my new or improved compounded furnace Fig. 2 is side elevation of
same and Fig. 7 plan on an enlarged scale. A and A' represent two chambers or
compartments, in each of which is a furnace having grates or grate bars B, B1, the
two furnaces communicating with one and the same central flue or chimney C, the
whole being connected to or mounted upon suitable framework D, bearing or
resting on balls E carried by the central pillar or foundation plate I so that the
double furnace and all the parts connected therewith may be revolved so as to place
one of the furnaces in front of the workman whilst the other furnace is being
re-charged with rods of iron, shewn at G in Fig. 1, which rods rest upon a stand H
or in holes made therein, and this is being done whilst the workman is removing
heated bars from the opposite furnace for the making of the bolts, nuts, or other
articles.
The grate or grate bars B and B have projecting from their sides a stud or rod I,
so that on a handle or swaife being placed thereon, the said grate can be overturned
for the purpose of upsetting the ashes therefrom to clean out the fire, which is
required from time to time. To keep the grates B horizontal and rigid when the
fire is upon them, a sneck or bar J is made to enter a notch in each stud I. The
asbes which fall from the grate bars drop onto the plate K or K, which forms
the bottom of a box L, L, made underneath the fire. The bottom of the box,
which is hinged at a, a, may be let down by moving away the holding
catches M, M, so as to remove the ashes lying in the bottom of the box. The
holding catches M, M are weighted at N, N', to assist the catches in keeping their
position when holding up the box bottoms. The blast box for receiving the
necessary draught of air is shewn at O, and the air is received up the central
pillar (see details Figs. 5 6 and 7); the dampers Q and Q are employed for the
purpose of shutting off the blast of air when required, the said dampers being
attached to levers R, R', (sec details Figs. 3, 4 and 7); the lower lever arms R, R¹,
being connected to the shafts S, S', having at each end thereof a hand lever T, T',
which on being operated moves the damper in and out of position accordingly. It
will be seen that the shafts S, S', have each separate handles, and that the dampers
are independent of each other, because while the blast is on in one furnace it need
not be on in the other furnace, which is being refilled with the rods of iron. A
longitudinal slit or aperture is made in each box L, L', through which the blast
of air passes under the grate bars, which is the method I adopt for supplying the
blast of air to the furnaces. In order to make the heat of the furnace tolerable
to the workman, suitable apertures or openings c are made in the framework of the
furnace, through which a blast of cold air is blown in a direction across the front
of the furnace to reduce the surrounding temperature for the purpose of keeping
the workman's hands cool when he is taking hold of a heated bar of iron with
pincers, such said air being admitted through pipes Z to the aperture c, and it is
put on or shut off by means of a damper U, UI, (see details Figs. 56 and 7) each
of the said dampers being independent of each other, so that while the blast of air
is on with respect to one furnace it can he off with respect to the other.
In addition to the blast of cold air to cool the surrounding temperature, I place

page_text: opposite to where the workinan stands, and at a point just above the heated bars of
iron, a jacket or hollow plate V through which a stream of cold water is
continually made to pass, entering in by the pipe W and passing out by another
pipe X.
By the construction of furnace for bolt making purposes such as that herein
described, made with more than one furnace, no time is lost in re-charging the
furnace and heating the metal to be ready for use; in addition to which, the
application of cold air and a cold water jacket enables the workman to remain in
close proximity to the machine without suffering from the heat thrown off by the
furnace, whilst the blast of cold air carries off and disperses the sulphuric fumes
arising from the said furnace.
Having now particularly described and ascertained the nature and object of
my said invention, and in what manner the same is to be performed, I declare that
what I claim is :-
:-
Firstly. In combined furnaces capable of oscillating upon a pillar or fulcrum,
the combination therewith of one or more blasts of cold air for cooling the sur-
rounding temperature and for dispersing the fumes arising from the furnace in
manner substantially as herein described.
Secondly. In combined furnaces capable of oscillating upon a pillar or other
fulcrum, the combination therewith of one or more blasts of cold air for cooling.
the surrounding temperature and for dispersing the fumes arising from the furnace,
together with a cold water jacket, in manner and for purposes substantially as
herein described.
Thirdly. The general combination and arrangement of parts substantially as
herein shewn and described, comprising combined furnaces in combination with
blasts of cold air and cold water jackets, the whole being arranged and operated in
manner substantially as herein shewn and described, together with incans for
admitting and shutting off the blasts of air.
Dated this 30th day of April 1891.
TASKER & CROSSLEY,
Huddersfield and Halifax, Agents.