Improvements in Gasholders.
Year: 1888

page_text: Date of Application, 15th Aug., 1888
Complete Specification Left, 15th May, 1889-Accepted, 22nd June, 1889
PROVISIONAL SPECIFICATION.
Improvements in Gasholders.
I, WILLIAM ASHMORE of Stockton on Tees, in the County of Durham, Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention has for its object the construction of gasholders in such a manner
that either a portion or the whole of the usual columns or standards and external
guide framing may be dispensed with, thus effecting an economy in their construction
not hitherto achieved.
In carrying out this invention if the holder is a single lift one I propose to omit
the columns or standards entirely. If the holder is one having two lifts the columns
or standards may be entirely omitted or they may be erected to the height of the first
lift only, and in the case of a three or more lift holder the columns or standards may
also be entirely dispensed with, or they may be carried up only a part of the entire
height of the holder when full.
For the purpose of guiding the holder when rising or falling I adopt the following
contrivance or means. In the case of a single lift holder guides of rolled joist,
channel, angle, or other suitable sections of iron are secured vertically to the side of
the tank and extend from the top to four or more feet below the general level of the
bottom of the tank ; and are placed at from 10 to 15 feet more or less apart. Opposite
to each of these vertical guides there is also attached to the interior of the holder
iron of similar section to that just described with reference to the tank. These irons
also extend some 4 or more feet below the bottom of the gasholder and attached to
these irons is a curb with brackets carrying radial and tangential rollers which work
against the guides in the tank. At the points where these guides are situated pits are
formed in the bottom of the tank sufficient in size and depth to receive both the
guides of the tank and those fixed to the holder. A single lift holder constructed
as just described will need no guide framing or support above the liquid in
the tank.
Gasholders with two or more lifts are constructed in a similar manner each of the
holders having fixed to their sides internal guides which extend to 4 or more feet
below the holder itself. These guides on the one side serve as attachments for the
curbs and brackets for carrying the radial and tangential rollers, and on the other
side serve as guides against which the radial and tangential rollers of the inner lift
roll.
By these means, what is virtually a very deep and rigid bottom curb, is
furnished to each holder and this curb being provided with both radial and tangential
rollers accurately fitted is sufficient to maintain the gasholder in its proper position
under all circumstances. If however in the case of a two, three or more lift holder
it is considered desirable to carry up columns or standards for a part of its height,
then advantage may be taken to use them for the attachment of guides against which
rollers fixed to the top of the dip may roll, but the object of this invention
is to do away with the necessity of as much of the present exterior framing as
possible.
Dated this 15th day of August 1888.
W. H. BENNETT,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Gasholders.
I, WILLIAM ASHMORE of Stockton on Tees, in the County of Durham, 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:
This invention has for its object the construction of gasholders in such a manner
that either a portion or the whole of the usual columns or standards and external
guide framing may be dispensed with, thus effecting an economy in their construction
not hitherto achieved.
In order that the invention may be easily understood drawings are attached hereto
of which the following is a description. Fig. 1 is a general vertical sectional elevation
of one side of a telescopic gasholder having this invention applied, Fig. 2 is a side
sectional elevation of the curb, rollers and carriages fixed to the lower part of the
gasholder. Fig. 3 shows the dip, cup carriages and guide wheels of the inner lift of
a telescopic gasholder. Fig. 4 is a plan of Fig. 2. Fig. 5 is a plan of the upper
cup carriage in Fig. 3, and Fig. 6 is an inverted plan of the lower cup carriage. In
each of the views similar letters refer to the same parts.
In carrying out this invention, if the holder is a single lift one, I propose to omit
the columns or standards entirely, or have only very dwarf standards as seen at A
Fig. 2. If the holder is one having two lifts, the columns or standards may be
omitted altogether, or there may be dwarf standards as A Fig. 2, or the standards B
may be erected to the height of the first lift only as shown in Fig. 1. In the case of
a three or more lift holder the columns or standards may also be entirely dispensed
with, or they may be carried up only a part of the entire height of the holder
when full.
For the purpose of guiding the holder when rising or falling, I adopt the following
contrivance or means. In the case of a single lift holder guides of rolled joist,
channel, angle or other suitable sections of iron C, C, are secured vertically to the side
of the tank D and extend from the top to four or more feet below the general level of the
bottom of the tank, and are placed at from 10 to 15 feet more or less apart. Opposite
to each of these vertical guides there is also attached to the interior of the holder
vertical iron or steel stays E of the usual section adopted in inner lifts. These iron
or steel stays also extend some four or more feet below the bottom of the gasholder,
and attached to the bottom of the holder and to these stays is a curb F with
brackets G and H carrying radial rollers I and tangential rollers J which work against
the guides C in the tank. At the points where these guides are situated pits K Fig. 1
are formed in the bottom in the bottom of the tank sufficient in area and depth to
receive both the guides of the tank, and the curb, rollers and carriages fixed to the
holder. A single lift holder constructed as just described will need no guide
framing or support above the liquid in the tank, except perhaps the dwarf
standards A before referred to.
Gasholders with two or more lifts are constructed in a similar manner, the middle
and outer lifts having fixed to their sides internal stays E which may be used also as
guides and which extend to four or more feet below the holder itself. These stays on
the inside of middle or inner lift serve as attachments for the curbs and brackets for
carrying the radial rollers N and tangential rollers O, and those on the inside of outer
or middle lift serve as guides against which the radial and tangential rollers of the
inner or middle lift roll. By these means, what is virtually a very deep and rigid
bottom curb is furnished to each holder, and the curb being provided with both radial
and tangential rollers accurately fitted is sufficient to maintain the gas holder in its
proper position under all circumstances. If however in the case of a two, three or
more lift holder it is considered desirable to carry up columns or standards for a part
of its height, then advantage may be taken to use them for the attachment of guides L

page_text: Figs. 1 and 3 against which rollers M fixed to the top of the dip may roll, but the
object of this invention is to do away with the necessity of as much of the present
exterior framing as possible.
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. The construction of single lift gasholders with curbs F radial rollers I and
tangential rollers J and carriages arranged as herein described and shown on the
drawing Figs. 2 and 4.
2. Telescopic gasholders made with stays, guides, curbs, rollers, and carriages,
arranged as herein described and shown on the drawings Figs. 3, 5 and 6.
W. H. BENNETT,
Agent for the Applicant.