A New or Improved Method of Supplying Steam to Bakers' Ovens, Provers, and the like, and Apparatus connected therewith.
Year: 1894

page_text: Date of Application, 10th Apr., 1894-Accepted, 2nd June, 1894
COMPLETE SPECIFICATION.
A New or Improved Method of Supplying Steam to Bakers' Ovens,
Provers, and the like, and Apparatus connected therewith.
We, CHARLES ALFRED GEEN, Engineer, and MAY GEEN, both of Langdale
Lodge, Loampit Hill, Lewisham, in the County of Kent, 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 :-
Our invention consists of a new or improved method of supplying steam to
bakers' ovens and other like devices, whereby certain advantages are obtained :
and it also consists in apparatus to be used in carrying out the said method.
In order to facilitate description and ready comprehension of our invention we
have appended hereto a drawing illustrative of our invention and in which we
have inserted letters of reference corresponding with those in the following
description.
Our invention, in so far as it relates to the method, lies mainly in heating the
water to a temperature above that of ebullition in a closed chamber, passing it to a
second chamber in which ebullition takes place and in which there is a steam dome
or space, and from there leading the steam to the oven or other device in which
the steam is to be utilised.
In so far as the apparatus is concerned, our invention relates mainly to the
arrangement and combination of parts as hereinafter set forth.
Referring now to the drawing, A is the heating chamber connected as shewn by
flow and return pipes a' and a³ with the ebullition chamber B. The said ebullition.
chamber is connected as shown by a pipe cl with the supply cistern C. This
cistern is preferably furnished with a supply pipe fitted with a ball-cock as shown,
and connected with a supply main. At the top of the ebullition chamber is a dome
or steam space the bottom of which space, or in other words the level of the
surface of the water in the ebullition chamber, is determined by the level of the
water in the cistern C. From the said steam space passes a steam pipe D which
may have as many branches as desired passing to the ovens, provers or other devices
in which the steam is to be utilised, or to the exhaust. The main steam pipe and
or each of its branches may be furnished with valves. In the case represented in
the drawing D' may be assumed to be an exhaust pipe, and D' and D³ pipes
leading one to a prover and the other to an oven.
The action of our invention is as follows. Water is admitted from the supply
pipe, as for example from the street main or from a house cistern, to the supply
cistern C, its admission being regulated by the ball-valve. From C the water
passes into the ebullition chamber B by the pipe c¹. From B the water passes
through the pipe a¹ to the heating chamber A where it is heated to a temperature
above that of ebullition. From A the water flows into B where ebullition takes
place freely and steam collects in the steam space b¹ whence it may be led, by
turning on or off the respective valves of the pipes, to the ovens or provers or other
devices where it may be utilised, or if desired be allowed to escape by the exhaust.
The arrangement of the supply cisteru with respect to the ebullition chamber and
the heating chamber acts as a safety valve inasmuch as the pressure if it becomes
too high in the ebullition chamber will relieve itself through the pipe c¹ and supply
cistern C which is open to the atmosphere. is a tap from which hot water can
be drawn when required.
The heating chamber is fitted over a furnace or in a flue or otherwise disposed so
that it may be heated conveniently.

page_text: Having now particularly described and ascertained the nature of our invention
and in what manner the same is to be performed, we declare that what we
claim is,
1. The new or improved method of supplying steam to bakers' ovens, provers
and the like which consists in heating the water in a closed vessel to a temperature
above that of ebullition, passing it to an ebullition chamber in which steam is
liberated and leading the steam, thus liberated, from the steam space of the
ebullition chamber to the oven or other like device in which the said steam is to be
utilised, substantially as set forth.
2. The new or improved apparatus connected with the supplying of steam to
bakers' ovens, provers and the like which consists in the combination of a heating
chamber, an ebullition chamber and means for conducting the steam to the oven or
other like device in which it is to be utilised, substantially as set forth.
3. The new or improved apparatus connected with the supplying of steam to
bakers' ovens, provers and the like which consists in the combination of a supply
cistern, a heating chamber, an ebullition chamber and means for conducting the
steam to the oven or other like device in which it is to be utilised, substantially as
set forth.
4. The new or improved apparatus connected with the supplying of steam to
bakers' ovens, provers and the like which consists in the combination of a supply
pipe, a supply cistern, a heating chamber, an ebullition chamber and means for
conducting the steam to the oven or other like device in which it is to be utilised,
substantially as set forth.
5. The new or improved apparatus connected with the supplying of steam to
bakers' ovens, provers and the like which consists in the combination of a supply
pipe, a ball-cock attached thereto, a supply cistern, a heating chamber, an
ebullition chamber and means for conducting the steam to the oven or other-like
device in which it is to be utilised, substantially as set forth.
Dated this 10th day of April 1894.
Dated this 10th day of April 1894.
For the Applicants,
J. G. LORRAIN, M. Inst. E.E., M. Inst. M.E.,
Norfolk House, Norfolk Street, Strand, London, W.C.,
Chartered Patent Agent.