Improvements in Hinged Joints Formed of Cast Metal.
Year: 1894

page_text: Date of Application, 13th Jan., 1894
Complete Specification Left, 12th Oct., 1894-Accepted, 17th Nov., 1894
PROVISIONAL SPECIFICATION.
Improvements in Hinged Joints Formed of Cast Metal.
I, HERBERT HAGUE of Brook Terrace, Belper in the County of Derby, Pattern
Maker, do hereby declare the nature of this invention to be as follows:-
:-
The object of my invention is to dispense with cores, drilling, tapping and fitting
in any form of hinged joint in which the parts are cast such as fall bar ranges,
furnace or oven doors and frames, gulleys and the like.
In carrying out my said invention I dispense with the cores of sand usually
employed in forming the holes in the different castings and use what are technically
known as "chills "
made of chilled metal, the said chills carrying projections of
the necessary form or shape either for plain or slotted holes or inclines or slopes
required therein or thereon. The studs or pivots which form the hinge on the said
fall bars, furnace or oven doors, gulleys or the like may be cast on by employing
the same chills that would be used in forming the frame for the reception of the
said fall bars, furnace or oven doors, gulleys or the like.
The same chill which carries the projection for the pivot of the fall bar also has
indentations formed therein and arranged so as to cast projections on the frame
whereby the fitting of the fall bar is rendered automatic and perfect and it is
impossible for it to fall too low as is the case with the present arrangement and
construction.
Dated this 12th day of January 1894.
W. SWINDELL,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Hinged Joints Formed of Cast Metal.
1, HERBERT HAGUE of Prospect Cottage, Ecclesfield in the County of York,
late of Brook Terrace, Belper in the County of Derby, Pattern 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 object of my invention is to dispense with cores, drilling, tapping and fitting
in any form of hinged joint in which the parts are cast, such as fall-bar ranges,
furnace or oven doors and frames, gulleys and the like, and in carrying out my
said invention I dispense with the cores of sand usually employed in forming the
chilla,"
boles in the different castings and use what are technically known as
which are formed of chilled metal; the said chills carry projections of the necessary
form or shape either for plain or slotted holes or inclines or slopes required therein
or thereon:
The studs or pivots on the said fall-bars, furnace doors or oven doors, gulleys
or the like may be cast on by employing the same chills that would be used in
forming the frame for the reception of the said fall-bars, furnace or oven doors,
gulleys and the like.

page_text: The same chill which carries the projection for the pivot or stud of the fall-bar
also has indentations formed therein and arranged to cast projections on the frame
whereby the fitting of the fall-bar is rendered automatic and perfect, and it is
impossible for it to fall too low as is the case with the ordinary arrangement and
construction.
In order to fully illustrate the nature of my said invention I have caused to be
annexed to this Specification two sheets of drawings the different figures and
letters of reference upon which will be deemed to form a part of this Specification.
Figure 1 is an elevation of a furnace door and frame.
Figure 2 is a plan on line A, B, of Figure 1.
Figure 3 is a vertical section on line C, D, of Figure 1.
Figure 4 is a plan of a "fall-crow" used over the top of open ranges.
Figures 5 and 6 are plan and elevation respectively of the chill used in making
the joint E of the fall-crow illustrated on Figure 4.
Figure 7 is a front elevation of a fall bar and frame-and Figure 8 is a plan of
the same.
Figures 9 and 10 are elevations of the chill used in moulding the left hand upper
portion of the frame shewn on Figures 7 and 8.
It is hardly necessary to illustrate all the chills necessary for forming the various
joints it being understood that the principle of employing chills for this purpose,
namely of casting the different pieces of metal in hinged joints, may be employed
for any kind of joint of cast metal and is particularly adapted for large or heavy
metal doors and frames, gulleys or drain grates, fall bar ranges, fall-crows, oven
doors or the like, but I have chosen the before mentioned illustrations of the
application of my invention to effectually explain the meaning of the said
invention.
The projecting portion F on the frame G of the furnace door illustrated on
Figures 1, 2 and 3 is cast hollow for the stud or pivot H to fit into and is open at
the back to allow of the said pivot being passed out or liberated therefrom, the
other pivot I simply fits into a hole or recess cast into the projecting portion Kon
the frame, in casting the frames prints are left in the sand to receive chills carrying
projections of the necessary form corresponding to the recesses to be left in the
frame, when the casting is taken from the sand the chill drops off and the door fits
thereto without any further trouble of filing or the like; this remark applies
equally to all joints formed in this manner and it is found in practice that the
metal cast up to the chill is much toughened by the process and consequently the
strongest where the wear is greatest.
In reference to the "fall-crow" illustrated on Figure 4, the joints are cast in
the same way, different chills being of course employed; the chill for the joint
at E being, as already stated, illustrated on Figures 5 and 6 and produces the
slotted opening or hole for the reception of the pivot L.
As already explained the chill illustrated on Figures 9 and 10 is used in forming
the upper left hand portion of the fall bar frame illustrated on Figures 7 and 8 the
projection M on the chill forming the vertically elongated hole N, and the
recesses O, P and Q, form the projections R, S, T, respectively on the back inner
edge of the frame; the opposite side of the frame is formed with a chill carrying a
tapering projection the full end of which is large enough to cast a recess for the
pivot or stud U to fit into, this chill produces the tapering recess V down which
the pivot or stud U passes when the fall-bar is placed in the frame; this is effected
as follows, the pivot or stud W is placed in the hole N and the stud U in the head
of the tapering or inclined recess V down which it passes until it stops at the
bottom on a level with the stud W. Upon Figure 7 the fall-bar is shewn in a
vertical position resting against the projections R, S, T, the latter of which keeps
it in its vertical position; when lowering the bar is raised slightly and turned
upon the pivots or studs when the lower end X passes between the projections S
and T and stops against the underside of the former.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion I declare that what I claim is :-
The improved method of forming hinged joints of cast metal, namely, of
employing "chills" of metal carrying projections of various kinds suitable for the
different purposes required, substantially as described herein and illustrated by the
accompanying sheets of drawings.
Dand thin 11th datahan 1004
W. SWINDELL,
Agent for the Applicant.