Improvements in Reversing Valves for Heating Furnaces, Regenera- tive Gas Furnaces, and the like.
Year: 1897

page_text: Date of Application, 1st Dec., 1897-Accepted, 16th Apr., 1898
Improvements in Reversing Valves for Heating Furnaces, Regenera-
tive Gas Furnaces, and the like.
I, SAMUEL FORTER, of Newcastle, Lawrence County, Pennsylvania, in the United
States of America, Civil Engineer, 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, reference being had to the
accompanying drawings and to the letters and figures marked thereon, that is
to say:
This invention relates to reversing valves, and will be readily understood on
reference to the annexed drawings in which:
Fig. 1 is a vertical section of my invention along the line 1. 1, in Fig. 4,
Fig. 2 is a plan view of my improved bed plate,
Fig. 3-is-a-side-elevation-of-my-invention-complete.
Fig. 4 is an end elevation of the same,
Fig. 5
sectional view along the line 5,5 in Fig. 1, and
Fig. 6 is a like section of the bed plate shewn with the superstructure removed.
My invention generally speaking consists of certain improvements in reversing
valves for use in heating furnaces to direct the currents of gas alternately to the
right and left in metallurgical operations, also for use in other structures where a
shifting and a water seal valve is required.
More particularly these improvements consist in an oscillating water seal revers-
ing valve so constructed that the deposit of tar, &c., in the bed plate will not
interfere with the successful operation of the valve and that such deposit may.be
conveniently removed while the valve is in operation, and that all operative parts
such as links 11, shafts 7 and 8 and valve shell 6 can be removed from their
positions without disturbing the outside casing.
In the several views which constitute part of this specification, 1, is a bed plate,
fitted with flanged gas apertures 1", 1b and 1°, and surrounded by flanged edge 2.
Extending laterally on bed plate 1 from the flanged apertures 12 and 1° are
ribs 33, said ribs being of less height than said flanged edges which are in turn
of equal height with the flange 2 surrounding the bed plate 1. Extending
longitudinally on bed plate 1 from apertures 1ª and 1º, are ribs 3º, 3º, of like height
with ribs 3-3. When bed plate 1 is filled with water, said ribs are all submerged.
Upon ribs 3-3 is supported casing 4 provided with cleaning doors 4, 4, and
gas or air connection 4b. The bottom of casing 4 is of less size than the bed plate 1
thus leaving an open space between casing 4 and the flange 2, through which hooks
may be inserted to clean bed plate 1 of deposited tar. 5-5 are "Z" irons placed
laterally along the edges of casing 4 serving to strengthen the same and also acting
as a support for a brick lining for said casing.
6, is the valve shell provided with hooks 6º, 6º, to assist in its removal. 7 and 8
are shafts oscillating in raised open bearings 7", 7", and 8", 8" on bed plate 1, said
bearings being of less height than flange 2, so that when said bed plate is filled with
water, said bearings and said shafts are submerged. 10-10 are integral pins on
valve shell 6. 11-11 are links forged at their lower extremities to shafts 7 and 3
and slotted at their upper extremities to receive pins 10-10 on valve shell 6.
12 is the operating lever bolted to one of the links 11 and provided at its upper
רנ6....
Scotonal view along the neig. 1, and
Fig. 6 is a like section of the bed plate shewn with the superstructure removed.
My invention generally speaking consists of certain improvements in reversing
valves for use in heating furnaces to direct the currents of gas alternately to the
right and left in metallurgical operations, also for use in other structures where a
shifting and a water seal valve is required.
More particularly these improvements consist in an oscillating water seal revers-
ing valve so constructed that the deposit of tar, &c., in the bed plate will not
interfere with the successful operation of the valve and that such deposit may.be
conveniently removed while the valve is in operation, and that all operative parts
such as links 11, shafts 7 and 8 and valve shell 6 can be removed from their
positions without disturbing the outside casing.
In the several views which constitute part of this specification, 1, is a bed plate,
fitted with flanged gas apertures 1", 1b and 1°, and surrounded by flanged edge 2.
Extending laterally on bed plate 1 from the flanged apertures 1" and 1 are
riba 33, said ribs being of less height than said flanged edges which are in turn
of equal height with the flange 2 surrounding the bed plate 1. Extending
longitudinally on bed plate 1 from apertures 1a and 1º, are ribs 3, 3, of like height
with ribs 3-3. When bed plate 1 is filled with water, said ribs are all submerged.
Upon ribs 3-3 is supported casing 4 provided with cleaning doors 4, 4ª, and
gas or air connection 4b. The bottom of casing 4 is of less size than the bed plate 1
thus leaving an open space between casing 4 and the flange 2, through which hooks
may be inserted to clean bed plate 1 of deposited tar. 5-5 are "Z" irons placed
laterally along the edges of casing 4 serving to strengthen the same and also acting
as a support for a brick lining for said casing.
6, is the valve shell provided with hooks 6", 6", to assist in its removal. 7 and 8
are shafts oscillating in raised open bearings 7ª, 7", and 8, 8ª on bed plate 1, said
bearings being of less height than flange 2, so that when said bed plate is filled with
water, said bearings and said shafts are submerged. 10-10 are integral pins on
valve shell 6. 11-11 are links forged at their lower extremities to shafts 7 and 3
and slotted at their upper extremities to receive pins 10-10 on valve shell 6.
12 is the operating lever bolted to one of the links 11 and provided at its upper
רנס..מ

page_text: end with weight 13 to which it is attached by chain 14 running between guide
pulleys 15-15. Weight 13 is cut away as at 13" to avoid the base of lever 12 when
said weight descends. 16-16 are the water connections of bed plate 1.
The operation of my device is as follows: Suppose the valve shell to be in the
position shown in Fig. 1 connecting apertures 1b, 1°, the bed plate being filled with
water forms a perfect water seal for the valve. To reverse the valve the operating
lever 12 is thrown over assisted in its movement by weight 13. The reversal of
operating lever 12 would cause the shaft 7 to turn and with its links 11-11 keyed
thereto. This motion would cause the valve shell 6 to move on links 11-11 forged
to, shafts 7 and 8 and be carried through an arc until it rested in the position shown
by the dotted lines in Fig. 1 thus connecting apertures 12 and 1b. The following
are some of the beneficial features of my improved valve:
The tendency in water seal reversing valves is for tar to collect in the bottom
thereof destroying the integrity of the water seal and clogging the operation of
the reversing mechanism. It has also been, impossible heretofore to clean out
such deposit while the valve is in use. In 'my improved reversing valve, I elevate
both the casing and the valve shell on submerged ribs rising from the bottom of
the bed plate, leaving beneath, a clear space for the deposit of tar, &c. on the bottom
of the bed plate, so rendering it impossible for such deposit to reach and interfere
with the operation of the reversing mechanism.
The open space surrounding the base of casing 4 within flange 2 enables a hook
to be inserted and the tar removed from every portion of the bed plate.
The valve shell, links and shafts may be readily removed through doors 4*, 4*,
without disturbing casing 4, by disconnecting lever 12 from the link 11 to which
it is bolted.
22. Y
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. In reversing valves, the combination of a bed plate adapted to act as a water
seal; an oscillating valve shell resting on submerged ribs on said bed plate, and
a casing also resting on submerged ribs on said bed plate.
2. In reversing valves, the combination of a bed plate adapted to act as a water
seal; an oscillating valve shell resting on submerged ribs on said bed plate, and
a casing also resting on submerged ribs on said bed plate at an interval within the
outer edges of said bed plate.
3. In reversing valves, the combination of a bed plate adapted to act as a water
seal; oscillating shafts resting on submerged bearings erected on the bottom of
said bed plate; an oscillating valve shell resting on submerged ribs on said bed
plate; links operatively connecting said valve' shell and said shafts; a reversing
lever connected to one of said links and a casing resting on submerged ribs on said
bed plate at an interval within the edges of said bed plate.
4. In reversing valves, the combination of a bed plate; an oscillating valve shell
supported by said bed plate; means for causing said shell to oscillate and a
casing supported by said bed plate, said operating parts being removable through
an aperture in said casing without disturbing the same.
ני
UILID
504
1001
ERNEST DE PASS,
Chartered Patent Agent,
78, Fleet Street, London, and 5A, Market Street, Nottingham.
Agent for the Applicant.