Year: 1894

page_text: Date of Application, 27th July; 1894.
Complete Specification Left, 29th Apr., 1895-Accepted, 1st June, 1895
I WILLIAM WINDLE PILKINGTON of St. Helens in the County of Lancaster,
Glass Manufacturer, do hereby declare the nature of this invention to be as
follows:-
The object is to provide valves specially suitable for use in reversing the direction
of the flow of air through regenerators, more particularly applicable when the said
air is at pressure above that of the atmosphere.
Valves under ny invention consist essentially of a base or seat made with one
central and three equally spaced radial through ways, and of a cap or cover with a
central and three radial cavities made so as to coincide with the through ways in the
base or seat. Two of the radial cavities are in communication with each other by
means of a way or passage in the said cap or cover, whilst the third radial cavity is
in communication with the central cavity by means of a way or passage in the said
cap or seat.
The valves are used in pairs in connection with two regenerators, and have the
caps or covers coupled so as to be capable of being moved simultaneously.
The central through way of one valve seat or base is connected to a take-off flue
or chimney whilst the central through way of the other valve is connected to the
furnace or producer.
Two of the radial through ways in one valve seat open each into one end of two
regenerators, whilst two of the radial through ways in the other valve open each
into the other end of the said two regenerators. The third radial opening in the
seat having its central through way opening to the furnace or producer is in
communication with the air inlet or blower, whilst the third radial opening of the
other seat is in communication with the furnace or producer.
The caps or covers are connected by chain or other gear so that they may be
lifted simultaneously from their seats, turned one third round and lowered onto their
seats. In one position air passes through one regenerator into the furnace or
producer whilst the hot gases from the furnace or producer pass through the other
regenerator to the take off flue or chimney. When the position of the valve caps
or covers is reversed the flow of air and gases through the regenerators is also
reversed.
Asbestos or other packing is used to make a tight joint between the seats
and caps.
Dated this 26th day of July 1894.

page_text: Improvements in Reversing Valves for Air Regenerators.
1 WILLIAM WINDLE PILKINGTON of St. Helens in the County of Lancaster,
Glass Manufacturer, 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 is to provide valves specially suitable for use in reversing the direction
of the flow of air through regenerators more particularly applicable when the said
air is at pressure above that of the atmosphere.
Valves under my invention consist essentially of a base or seat 'made with 'one
central and three equally spaced radial through ways, and of a cap or cover with a
central and three radial cavities made so as to coincide with the through ways in
the base or seat. Two of the radial cavities are in communication with each other
by means of a way or passage in the said cap or cover whilst the third radial-cavity
is in communication with the central cavity by means of a way or passage in the
said cap or seat.
The valves are used in pairs in connection with two regenerators, and have the
caps or covers coupled so as to be capable of being moved simultaneously.
The central through-way of one valve seat or base is connected to a take-off flue
or chimney whilst the central through-way of the other valve seat is connected to
the furnace or producer.
Two of the radial through ways in one valve seat, open each into one end of two
regenerators, whilst two of the radial through-ways in the other valve open each
into the other end of the said two regenerators. The third radial opening into the
seat having its central through-way opening to the furnace or producer is in
communication with the air inlet or blower, whilst the third radial opening of the
other seat is in communication with the furnace or producer.
The caps or covers are connected by chain or other gear so that they may be
lifted simultaneously from their seats, turned one third round and lowered on to
their seats. In one position air passes through one regenerator into the furnace or
producer whilst the hot gases from the furnace or producer pass through the other
regenerator to the take-off Alue or chimney. When the position of the valve caps
or covers is reversed, the flow of air and gases through the regenerators is also
reversed.
Asbestos or other packing is used to make a tight joint between the seats
and caps.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 Sheet 1 is an elevation of a pair of valves with seatings constructed in
accordance with my invention. Fig. 2 Sheet II is a plan of one of the valves, and
Fig. 3 Sheet II is view showing the connections to the regenerators, valves, and
other parts, the valves being depicted side by side for that purpose.
a. are the bases or seats carried one above the other by the frame b. Each base
or seat has a central through way c, and three radial through ways'd, e, f. The cap
or cover of each valve is made with a central and three radial cavities, two radial
cavities, and a central and radial cavity being in communication by a way or
passage or preferably as I have found by experience with two radial cavities opening
into each other so as to form one long cavity g, and also with the central and
remaining radial cavity forming one long cavity h, and instead of making all the
cavities in one cap or cover I make each combined pair of cavities in a separate cap
or cover with an air space between so as to prevent the flow of air from one pair of
joined cavities to the other. The said pairs of caps or covers of each valve are
connected together so as to form practically one cap or cover by means of cross

page_text: n
bars i and hangers j, or they may be secured together by any other suitable means.
The cross bars are fitted with spindles k. The spindle k of the lower valve crass
bars is secured to a roller carriage the rollers of which run on a path carried by a
girder m. The upper end of the spindle k of the top valve cross bara passes freely
through a roller carriage l, the rollers of which run on a path carried by girders
secured to the frame b. The spindle k being coupled to the said roller carriage by a
connecting rod k¹ and lever provided with a balance weight ³. An inverted
roller carriage is secured to the spindle k just above the upper cross bars i and
a path carried by a girder o rests on the rollers of the said carriage . The
girders m and o are coupled by tie rods p on each side of each end of the said
girders and the frame so formed is free to be moved vertically between the
standards of the frame b. On each spindle k is a chain-wheel q coupled by chains
with chain wheels on a spindler carried in bearings on the frame b.
To operate the valves, the free end of the lever is depressed and upper
spindle with its roller carriage is raised. This causes the girder o to rise and
lift the girder in and roller carriage 1 of the lower valve; in this way, the upper
and lower valve caps or covers are raised off their bases or seats by means of the
cross bars and hangers. The spindles k and with them the valves can then be
rotated by means of the lever the chain wheels and chains communicating rotary
motion from one spindle k to the other. The lever is then raised and the valves
are lowered to their seats.
The casings of the caps or covers are made with grooves s in which a metallic
ring rests on asbestos packing. t are set screws for pressing the metallic rings
against the packing.
In Fig. 3 u, represent the regenerators.
Referring to the base or seat a of the upper valve the central throughway c leads
by the way cl to the furnace waste gas outlet; the radial throughway d to the top
of the regenerator u by the way d¹ and the radial through way e to the top of the
regenerator u by the way e¹ whilst the radial through way leads to the producer
or furnace by the way f¹. Referring to the cap or cover the connected radial
cavities g couple the through ways di and f¹ and the connected radial and central
cavities à couple the ways and e¹. Referring to base or seat a' of the lower
valve the central through way c leads by the way ea to the air inlet or blower the
through way d by the way d² to the bottom of regenerator u', the through way c by
the way to the bottom of the regenerator u and the through wayf by the way f
to the chimney or waste gas flue. The ways f and d and cand e are coupled by
the caps or covers.
As shown by the arrows, air is passing from the blower through the ways c and e
of the lower valve al to the bottom of the regenerator u and from the top of the
said regenerator through the ways d and f of the upper valve a to the furnace or
producer. At the same time the waste gases from the furnace or producer through
the ways ce of the upper valve to the top of the regenerator a¹ and from the bottom
thereof by the ways df of the lower valve a¹ to the chimney or Hue. If now the
valve caps be moved until the ways cd and e f of the upper valve and also C 4
and e, f of the lower valve are coupled the waste gases will pass down through the
regenerator u and the air up through the regenerator u¹.
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
First. Reversing valves for air regenerators having a base or seat and caps or
covers constructed and operated substantially as set forth.
Second. In reversing valves for air regenerators a base with one central and
three radial throughways and a cap or cover for coupling the said ways-in pairs
when such cap or cover is in two parts connected with an air space between for the
purpose set forth.
Third. In reversing valves for air regenerators, a base or seat with one central

page_text: and three radial through ways a cap for coupling the ways in pairs and packing for
making a face between the cap or cover and the base or seat substantially as set
forth.
Fourth. Combined lift and rotary valves for air regenerators substantially as
set forth.
J. JOHNSON,
Patent Office, 4, Clayton Square, Liverpool, Agent.