Improvements in Hoists or Lifts.
Year: 1888

page_text: PROVISIONAL SPECIFICATION.
Improvements in Hoists or Lifts.
We WILLIAM LUMB, Cotton Spinner and RICHARD HENRY HOLT, Clerk, both of
Brotherod near Rochdale in the county of Lancaster do hereby declare the nature of
this invention to be as follows::=
To the cage we attach a Governor which is caused to revolve by means of a Rack
Rope Pulley or other mechanism when the cage moves up and down the Hoist race-
If the rope (or other means by which the cage is lifted) breaks and the cage begins
to fall, or if by any cause the speed of the cage is unduly increased, the Governor
will immediately fly out and move a catch from under a lever when the lever drops
and allows a rod that is attached to it to drop also-To this rod is attached a bar (or
bars) at or near the inner ends of the bar (or bars). This bar (or bars) rest on or
pass through slots or grooves formed in or attached to the cage-The bottom of these
slots or grooves act as fulcrums for the bars to rest upon, and the top of the slots
When the rod falls to which the inner
or grooves prevent the bars rising too high.
ends of the bar (or bars) is connected, it raises the outer ends of the bar (or bars)
into contact with the sides of the Hoist race or Lift-or Racks or other mechanism
fixed to the Hoist race and these prevent the cage falling to the bottom-Stops are
applied to prevent these bars rising too far when in contact with the Hoist race
Springs or Weights may be applied to the bars or rod to accelerate the action.
Dated this 18th day of April 1888.

page_text: We WILLIAM LUMB, Cotton Spinner and RICHARD HENRY HOLT, Clerk both of
Brotherod, Rochdale in the county of Lancaster 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:-
To the cage we attach a Governor which is caused to revolve by means of a Rack
Rope or other mechanism when the cage moves up or down the Hoist race. If the
rope (or other means by which the cage is lifted) breaks and the cage begins to fall
or if by any cause the speed of the cage is unduly increased, the governor will
immediately fly out and move a catch (which keeps a lever in position) out of contact
with the lever when the lever drops and allows a rod or rods attached to it to drop
also. To this rod or rods is attached a bar or bars at or near the inner ends of the
bar or bars.
This bar or bars rest on or pass through slots or grooves formed in or attached to
the cage, the bottom of these slots or grooves act as fulcrums for the bars to rest
upon, and the top of these slots or grooves prevent the bars rising too high. When
the rod or rods fall to which the inner ends of the bar or bars are connected it
raises the outer ends of the bar or bars into contact with the sides of the Hoist
race or Lift or Racks or other mechanism fixed to the race, and thus prevent the
Cage falling to the bottom-Stops are applied to prevent these bars rising too high
when in contact with the Hoist race or other mechanism fixed to the Hoist race.
Springs or weights may be applied to the bars or rods to accellerate the action-
In order that our Invention may be fully understood and readily carried into effect
we will proceed to describe the accompanying sheet of Drawings reference being had
to the letters and figures marked thereon, Fig. 1 is a side elevation of the top
end of a Cage or Hoist Fig. 2 is a side elevation of the bottom end of a Cage or
Hoist and Fig. 3 is a Plan of a Cage or Hoist with our Invention applied.
a is the cage or hoist the chain or rope by which the cage or hoist is lifted,
c. are the rods which keep the cage or hoist in its position when passing up or down
the race, d is a governor of any suitable make which has a wheel fast on it which is
driven by a wheel fast on the shaft e on the other end of which is the pulley or
wheel which is taken hold of by a rope or chain g which extends from the top (or
nearly so) to the bottom (or nearly so) of the hoist race and is fastened so as not to
move up or down the race, so that when the cage or hoist moves up or down the
hoist race, the rope or chain g causes the pulley and governor d to revolve, h is a
lever which is hung on the centre ¹ one end of the lever takes hold of the governor d
and moves up and down with it and the other end has a regulating screw in it
which is set so that when the governor is running its normal speed it does not touch
or release the catch which is mounted on the stud 2, and the end of the catch is
kept in the notch of the lever j by the spring 2. The lever is mounted on the
stud. The rods k are connected at the top ends by the rod which passes through

page_text: a slot in the lever j and are thus kept in position. The bottom ends of the rods k are
also connected together by means of another rod m on which are mounted (loosely)
at their inner ends the bars n which pass through slots in and are supported by the
brackets n' they also pass through slots in the brackets or stops n² which prevent the
outer ends of the bars n rising too high. The outer ends of the bars are made
pointed or chisel shaped so as to catch into the guide rods c when required, there is a
bar n opposite each guide rod. In some cases only two bars n are required when
they should pass under the centre of the cage, or the bars n might be made to catch
into the sides of the hoist race or any other suitable medium-If the cage or hoist
begins to descend at a greater than its normal speed the governor d lifts the catch i
out of the notch in the lever ; when the rods k which are hung on the lever j drop
and allows the inner ends of the bars n to drop also and thereby raise the outer or
chisel shaped ends of these bars into the guide rods c or sides of the hoist race.
or other suitable medium and thus prevent the cage or hoist falling down the hoist
race.
Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to be performed we declare that we claim
1st. The combination of a governor with the bars n and their accessories, being
so constructed arranged and operating substantially in the manner herein before
described.
2nd. The arrangement of the bars n and the method of mounting same with
brackets and stops as shown and described.
3rd. The arrangement by which 2 or 4 bars may be used substantially as
described.
4th. The rod or rods by which the bars n are held in position and the arrange-
ment for releasing the same in case of accident substantially as described.
5th. The lover catch i and regulating screw 2 by which the arrangement may
be made as sensitive as required substantially as shown and described.
6th. The application of the governor so far as having control over the safety
apparatus substantially as shown and described.
Dated this 12th day of December 1888.