Year: 1888

page_text: I, GEORGE EDWIN CHAPMAN, of Rivington Street, Curtain Road, in the County of
Middlesex, Album Manufacturer, do hereby declare the nature of this invention to
be as follows:-
My invention relates to heater boxes for blocking and embossing presses and
comprises the improvements hereinafter described.
The heater box is constructed of two heating chambers, the bottoms of which are of
a convex form and the ends open at the lower part.
Along each of these chambers and near the bottom thereof I fix a gas pipe
connected to the gas supply pipe and fitted with a number of burners adapted to
direct the gas jets onto the bottoms of the chambers, the flames passing outwards
and upwards towards the sides of the heating chambers thereby causing practically
the whole of the gas to be consumed inside the heater box. The heater box is so
constructed at the back that the gas pipes can be fixed and kept in the same position
whether the press is at work or not, the gas pipes being provided with atmospheric
burners outside the back of the heater box when they are connected with the gas
supply pipe.
A top plate is fitted by set screws or other suitable means on the chambers the
said plate having countersunk holes on the underside for receiving the heads of the
bolts connecting it with the piston. A chipping or pressure piece is provided on
the upper side for the piston to press upon.
A thermometer is advantageously attached to the box so as to enable a workman to
regulate the heat according to requirement.
I thus provide a practically solid heater box which can be fitted to an ordinary
blocking press in a very short space of time, and the burners or the box can if
required be safely detached in a few minutes by an unskilled workman. The box can
be very quickly heated to the required degree for working, a much smaller
consumption of gas is involved than is the case with ordinary heater boxes and
burners and the heat is equally distributed over all parts of the blocking plate.
1
1011
Donember 1888
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Heater Boxes for Blocking and
Embossing Presses.
I. GEORGE EDWIN CHAPMAN, of Rivington Street, Curtain Road, in the County f
Middlesex, Album Manufacturer, do hereby declare the nature of this invention and
in what manner the same is to bo performed to be particularly described and
ascertained in and by the following statement :—
My invention relates to heater boxes for blocking and embossing presses and
comprises the improvements hereinafter described.
The heater box is constructed of two heating chambers, the bottoms of which are
somewhat of a concave form and the ends open at the lower part.
Along each of these chambers and near the bottom thereof I fix a gas pipe
connected to the gas supply pipe and fitted with a number of burners adapted to
direct the gas jets onto the bottoms of the chambers, the flames passing outwards
and upwards towards the sides of the heating chambers thereby causing practically
the whole of the gas to be consumed inside the heater box. The heater box is so
constructed that the gas pipes can be fixed thereto instead of being placed loosely
therein as heretofore the gas pipes being provided with an atmospheric burner outside
the back of the heater box where they are connected with the gas supply pipe.
A top plate is fitted by set screws or other suitable means on the chambers the said
plate having countersunk holes on the underside for receiving the heads of the bolts
connecting it with the piston. A chipping or pressure piece is provided on the upper
side for the piston to press upon.
A thermometer is advantageously attached to the box so as to enable a workman to
regulate the heat according to requirement.
In order to enable my invention to be fully understood I will describe how it can
ba carried into practice by reference to the accompanying drawing, in which
Figure 1 is a front elevation, and
Figure 2 is a plan of a heater box for blocking and embossing presses constructed
according to my invention.
Similar letters in both the figures indicate similar parts.
a, a are the two heating chambers having bottoms of a somewhat concave form and
partially open ends as shewn clearly in Figure 1.
b, bare the gas pipes connected to the gas supply pipe and which I fix along the
chambers a, a the said pipes for this purpose being passed through bosses c, c
cast in the open ends at the rear of the chambers and secured thereto by means of
nuts d, e.
.
9, 9, 9 are the burners with which I fit the pipes b, b the burners being
adapted to direct the gas jets onto the bottoms of the chambers a, a as hereinbefore
explained.
The rear ends of the gas pipes are connected by elbows and screw unions to a
T-shaped tube provided with an atmospheric or Bunsen burner i connected by
flexible tubing to the gas supply pipe.
7
་

page_text: screws k, k, k, k.
1, are the heads of the
piston, the said heads 1,
plate; as shown.
bolts m, m whereby the heater box is connected to the
fitting in countersunk holes in the underside of the top
n is the chipping or pressure piece on the upper side of the top plate for the piston
to press upon.
o is a socket for receiving a thermometer so as to enable a workman to regulate
the heat of the box.
I thus provide a practically solid heater box which can be fitted to an ordinary
blocking press in a very short space of time, and the burners or the box can if
required be safely detached in a few minutes by an unskilled workman. The box can
be very quickly heated to the required degree for working, a much smaller
consumption of gas is involved than is the case with ordinary heater boxes and burners
and the heat is equally distributed over all parts of the blocking plate.
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. A heater box for blocking and embossing presses comprising two heating
chambers of the form shown and having partially open ends and fitted with gas
burners for the purpose specified.
.
2. In a heater box for blocking and embossing presses, the use, in combination with
chambers of the form shewn, of gas burners fixed to the heater box and adapted
to direct the gas jets onto the bottoms of the chambers substantially as, and for the
purpose, set forth.
3. The herein described means for attaching a heater box to the piston of a blocking
and embossing press.
4. The improved heater box herein before described and illustrated in the accom-
panying drawing.
Dated the 14th day of March 1889.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.