Improvements in the Means or Appliances for Guiding and Controlling Gasholders.
Year: 1890

page_text: Date of Application, 16th May, 1890
Complete Specification Left, 16th Feb., 1891-Accepted, 16th May, 1891
PROVISIONAL SPECIFICATION.
Improvements in the Means or Appliances for Guiding and
Controlling Gasholders.
I, EDWARD LLOYD PEASE, of Hurworth-on-Tees, in the County of Durham,
Engineer, do hereby declare the nature of this invention to be as follows:-
:-
My invention relates to means or appliances for guiding and controlling gasholders
so as to support and balance them in the working position by wire ropes or their
equivalents after the manner described in the Specification of my previous Patent
of the 14th of December 1888, No. 18,272.
"
6
In describing how my invention is carried into effect I shall employ the terms
"check rope,
coupling rope' or coupling bar," or "compound check rope" in
the same sense in which I have employed them in my Specification No. 18,272
of 1888.
The object of my invention is to modify the means or appliances for operating
the check ropes in several details of construction by which what may be termed the
circulating arrangement of operating the check ropes may be carried out without
using a separate endless coupling rope or may be combined with what may be
termed the alternating arrangement of operating the check ropes.
A further object of my invention is to modify the alternating arrangement of
operating the check ropes not only to adapt it more readily to the single or top lift
of the holder but to multiple lift holders.
In carrying out the circulating arrangement of operating the check ropes
according to my invention, which I will describe as applied to a single lift
holder, instead of employing top and bottom check ropes having separate connec-
tions with the circulating coupling rope or bar I connect the check ropes to the top
and bottom curbs and to one another in such a fashion that the horizontal portions
of the said check ropes serve the purpose of an endless coupling rope which circu-
lates to the right or left according as the gasholder rises or falls. Twin pulleys
working in overhanging pulley blocks are provided round the tank side at distances
apart which are not less than the vertical travel of the check ropes.
A check rope
connected to the bottom curb below one of these pulley blocks is carried round the
lower pulley thereof in a horizontal direction past the next pulley block and round
the upper pulley in some pulley block beyond to its connection with the top curb so
that a top and bottom check rope with an intervening horizontal connection form a
Z shaped figure, another check rope connected to the bottom curb below an inter-
mediate pulley block is similarly carried round the lower pulley thereof through the
next pulley block and round the upper pulley in some pulley block beyond and up
to its connection with the top curb forming a precisely similar shaped figure and
so on round the gasholder, by which arrangement the horizontal or circulating
portions of the combined upper and lower pairs of check ropes overlap each other
from pulley box to pulley box which horizontal portions are united or tied together
at such points as will not foul the said pulley boxes and thus serve the purpose of a
circulating coupling rope.
In combining the circulating and alternating systems to operate together I
employ for a two lift holder the following combination of parts; a holdfast secured
to the bottom curb of the inner lift, a gooseneck extending from the top curb
thereof, and a pulley pivotally attached. to the bottom curb of the outer lift. A
check rope secured to the said holdfast is trained over pulleys provided on the
dip" of the outer lift and round one or more pulleys to its connection with the
66

page_text: coupling rope. This check rope serves as the lower check rope of the inner lift
and as the upper check rope of the outer lift. A check rope secured to the goose-
neck is brought down under the pulley pivotally attached to the bottom curb of the
outer lift and round one or more pulleys. to its connection with the coupling rope.
This check rope serves as the upper check rope of the inner lift. and the lower
check rope of the outer lift. The check ropes are, diverted horizontally in opposite
directions to their connections with the coupling rope so that as one check rope is
taken up by the vertical movement of the gasholder the other is given out.
on
In applying this part of my invention to a three lift holder, the check rope
attached to a holdfast at the bottom curb of the top lift is trained over pulley
the dip of the intermediate lift round the pulley pivotally attached to the bottom
curb of the outside, lift and round one or more pulleys to its connection with, the
coupling rope. This check rope serves as the lower check rope to the top, and
bottom lifts and as the upper check rope to the intermediate lift. At another part
of the gasholder a compensating check rope is provided which serves as the upper
check rope, to the top and bottom lifts and the lower check rope to the intermediate
lifts. This check rope is, secured to a gooseneck extending from the top curb of
the top lift, and is brought round a pulley pivotally secured to the bottom curb of
the intermediate lift over pulleys on the "dip" of the outer lift and round one or
more pulleys to its connection with the coupling rope. The two check ropes are
connected in opposite directions with the coupling rope so that as the vertical
movement of the gasholder takes one up it gives the other out.
Referring to the alternating arrangement of operating the check ropes according
to my invention in which the ends of each check rope are secured to. fixed brackets
which serve as holdfasts at suitable parts of the tank side,, I will describe the com-
bination of parts brought into use in applying it to a two lift gasholder. Two
pulleys are pivotally attached to the bottom curbs of the inner and outer lifts
respectively at suitable positions relatively to the holdfasts; the check rope from
the holdfast at one side of the holder is led down under the bottom curb pulley of
the outer lift and up again across the dome of the gasholder and down between the
lift at the other side round the corresponding bottom curb pulley provided there
and up again over the "dip" of the outer lift to the holdfast at the tank side,
intervening pulleys being employed as required on the dome of the holder and the
"dip" of the outer lift. It will be observed that, while the outer lift is stationary
and the inner lift is rising alone the loop in the check rope which passes round the
bottom curb pulley of the inner lifts is taken up and the check rope is drawn across
the dome of the lift to the opposite side when the two lifts are "cupped," the loop
similarly formed by leading the check rope round the bottom curb pulley of the
outer lift is similarly taken up whilst the check rope is drawn across the dome in
the opposite direction, when the lifts fall again the reverse operation takes place in
which the check rope is drawn across the dome of the holder round the bottom curb
pulley of the outer lift until the loop round it has regained its original length and
the inner lift its original position...
The above described mode, of operating the check ropes can be similarly applied
to three lift holders, an additional loop round a pulley pivotally attached to the
bottom curb of the extra, lift being required to give out and take up the extra
length of the check rope and so on for any number of lifts. Three check ropes
intersecting triangularly will generally be found sufficient to balance the holder in
the working position.
Dated this 15th day of Max 1800

page_text: Improvements in the Means or Appliances for Guiding and
Controlling Gasholders.
I, EDWARD LLOYD PEASE of Hurworth 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 :-
My invention relates to means or appliances for guiding and controlling gas-
holders so as to support and balance them in the working position by wire ropes or
their equivalents after the manner described in the Specification of my previous
Patent of the 14th December 1888, No. 18272.
""
"
In describing how my invention is carried into effect I shall employ the terms
"check rope 2966
coupling rope or "coupling bar' or "compound check rope" in
the same sense in which I have employed them in my Specification No. 18272
of 1888.
The object of my invention is to modify the means or appliances for operating the
check ropes in several details of construction by which what may be termed the
circulating arrangement of operating the check ropes may be carried out without
using a separate endless coupling rope or may be combined with what may be
termed the alternating arrangement of operating the check ropes.
A further object of my invention is to modify the alternating arrangement of
operating the check ropes to adapt it more readily to multiple lift holders.
It will be obvious from the following description that the arrangements according
to my invention which may be termed circulating in some modifications alternating
in others, or a combination of the circulating arrangements in others may be
considerably varied without departing from its nature but convenient modes of
applying my invention are shown in the drawings hereunto annexed in which the
same letters of reference indicate corresponding parts wherever they occur in all
the figures; the arrangement or construction of parts similar in principle but
modified in detail in the various figures to suit the requirements of differently
constructed or different sized gasholders, illustrate what I believe to be the most
advantageous manner of carrying my invention into effect.
In Figures 1 and 2 an elevation and corresponding half plan illustrate a single
lift gasholder controlled by the circulating arrangement of operating the check
ropes according to my invention. Instead of employing top and bottom check ropes
having separate connections with the circulating coupling rope or bar, I connect
the check ropes al a² to the top and bottom curbs and to one another in such a
manner that the horizontal portions of the said check ropes serve the purpose of
an endless coupling rope which circulates to the right or left as the gasholder rises
or falls. Twin pulleys c c² working in overhanging pulley blocks c are provided
round the tank side at distances apart which are not less than the vertical travel of
the check ropes.
The lower portion a² of a check rope connected to the bottom
curb below one of these pulley blocks c is carried round the lower pulley c² thereof
in a horizontal direction past the next pulley block and round the upper pulley c¹ in
some pulley block beyond to its connection with the top curb, so that a top and
bottom check rope a' a² with an intervening horizontal connection form a shaped
figure, another check rope having its lower portion a² connected to the bottom curb
below an intermediate pulley block c is similarly carried round the lower pulley c²
thereof past the next pulley block and round the upper pulley e in some pulley
block beyond and up to its connection with the top curb forming a precisely
similar shaped figure and so on round the gasholder by which arrangement the
horizontal or circulating portions of the combined upper and lower pairs of check
ropes overlap each other from pulley box to pulley box which horizontal portions b
are united or tied together by any suitable coupling at such points as will not foul
the said pulley boxes and thus serve the purpose of a circulating coupling rope.

page_text: The pulleys on the tank side are employed to prevent the check ropes from
fouling the holder and also for keeping the circulating portions of the said check
ropes in tension.
66
Figures 3 and 4 illustrate a part sectional view and a corresponding plan view of
the circulating and alternating systems combined to operate together for guiding
and controlling a two lift gasholder in which the following combination of parts are
employed - is a holdfast secured to the bottom curb of the inner lift, c is a
gooseneck " extending from the top curb thereof and e³ a pulley pivotally attached
to the bottom curb of the outer lift. A check rope a¹ secured to the said hold fast
is trained over pulleys e¹² provided on the "dip" B of the outer lift and round
the pulley cat the tank side A to its connection with the coupling rope > which is
an endless rope surrounding the gasholder. This check rope a¹ serves as the lower
check rope of the inner lift and as the upper check rope of the outer lift. A check
rope a² secured to the "gooseneck c is brought down under the pulley e³ pivotally
attached to the bottom curb of the outer lift and round the pulley c² to its 1
connection with the coupling rope b.
This check rope a² serves as the upper check rope of the inner lift and the lower
check rope of the outer lift. The check ropes a' a² are diverted horizontally in
opposite directions to their connections with the coupling rope so that as one
check rope is taken up by the vertical movement of the gasholder the other is given
out. In applying this part of my invention to a three lift holder as illustrated in
Figures 5, 6 and 7 in which Figures 5 and 6 are part sectional views and Figure 7
a corresponding plan view thereof the check rope a' attached to holdfast at the
bottom of the top lift as shown in Figure 5, is trained over pulleys e e provided on
the "dip" B1 of the intermediate lift round the pulley e pivotally attached to the
bottom curb of the outer lift and round the pulley e to its connection with the
coupling rope b. This check rope a¹ serves as the lower check rope to the top and
bottom lifts and as the upper check rope to the intermediate lift.
At another part
of the gasholder as illustrated in Figure 6 a compensating check rope u² is provided
which serves as the upper check rope to the top and bottom lifts and the lower'
check rope to the intermediate lift. This check rope a² is secured to the "
neck" c extending from the top curb of the top lift and is brought round a pulley e
pivotally secured to the bottom curb of the intermediate lift over pulleys e¹ e² on
the "dip" B of the outer lift and round the pulley ² to its connection with the
coupling rope b. The two check ropes a' a² are connected in opposite directions
with the coupling rope so that as the vertical movement of the gasholder takes
one up it gives the other out.
goose-
Referring to Figures 8 and 9 which illustrate the alternating arrangement of
operating the check ropes according to my invention in which the ends of each
check rope are secured to fixed brackets which serve as holdfasts at suitable parts
of the tank side I will describe the combination of parts brought into use in
applying it to a two lift gasholder. In Figure 8 two pulleys eet are pivotally
attached to the bottom curbs of the inner and outer lifts respectively at suitable
positions relatively to the holdfasts k¹²; the check rope a from the holdfast kat
one side of the holder is led down under the bottom curb pulley es of the outer lift
and up again across the dome of the gasholder and down between the lift at the
other side round the corresponding bottom curb pulley e provided there 'and up
again over the "dip" B of the outer lift to the holdfast at the tank side; inter-
vening pulleys being employed as required on the dome of the holder and the "dip
of the outer lift. It will be observed that while the outer lift is stationary and the
inner lift is rising alone, the loop in the check rope which passes round the bottom
curb pulley e of the inner lift is taken up and the check rope is drawn across the
dome of the lift to the opposite side; when the two lifts are "cupped" the loop
similarly formed by leading the check rope round the bottom curb pulley e³ of the
outer lift is similarly taken up, whilst the check rope is drawn across' the dome' in
the opposite direction; when the lifts fall again the reverse operation takes place,
in which the check rope is drawn across the dome of the holder round' the bottom
"

page_text: curb pulley of the outer lift until the loop round it has regained its original
length and the outer lift its original position, and is then drawn back again round
the bottom curb pulley e of the inner lift until the loop round it has regained its
original length and the inner lift its original position.
The above described mode of operating the check ropes can be similarly applied
to three lift holders as illustrated in Figure 9. An additional loop round a pulley
pivotally attached to the bottom curb of the extra lift being required to give out
and take up the extra length of the check rope, and so on for any number
of lifts.
Three check ropes intersecting triangularly will generally be found sufficient to
balance the holder in the working position.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed what I claim is :-
Firstly-The arrangement and combination of parts by which the check ropes
which are connected to the top and bottom curbs of a gasholder are connected
together in such a manner that the horizontal portions thereof serve the purpose of
an endless coupling rope or bar, substantially as and for the purpose herein before
described with reference to Figures 1 and 2.
Secondly-The arrangement and combination of parts by which the circulating
and alternating systems of operating the check ropes are combined together for
guiding and controlling multiple lift gasholders, the check ropes being connected to
the coupling rope in couples, one of which is secured to a holdfast at the bottom
curb and the other to the "gooseneck" of the inmost lift, so that as one check rope
is given out the other is taken up, each lift being guided and controlled in turn
substantially as and for the purpose hereinbefore described with reference to
Figures 3, 4, 5, 6 and 7.
Thirdly The arrangement and combination of parts by which the alternating
arrangement of operating the check ropes is applied to multiple lift gasholders by
passing the said check ropes round pulleys pivotally attached to the bottom curbs
of the lift and over the crown or dome of the gasholder with both ends of each
check rope secured to holdfasts at the tank side, substantially as and for the purpose
hereinbefore described with reference to Figures 8 and 9.
Dated this 14th day of February 1891.
G. J. CLARKSON,
Stockton-on-Tees, Agent for the Applicant.