Year: 1888

page_text: Date of Application, 3rd Feb., 1888
Complete Specification Left, 31st Oct., 1888
Complete Specification Accepted, 31st Dec., 1888
I, EDWARD THOMAS CLEATHERO, of 34 Malpas Road Brockley in the County of
Kent, Engineer, do declare the nature of my invention to be as follows:-
My invention relates to the construction and arrangement of a self-sustaining
mechanism applicable to the lift and other mechanisms, and while modifications may of
course be made to adapt it to different purposes, I will describe it in connection with
a cage lift.
On the shaft of the lift, which shaft is capable of Rotary motion, is a spur pinion
wheel, chain wheel, rope pulley or equivalent, which has a flange shroud or face on one
or both sides which flanges shrouds or faces are bevelled wedge shaped in two three
four or more sections, and are in close proximity to the side of a disc or discs which are also
similarly bevelled on one side to fit. The other side of the disc or discs is faced and
formed in grooves which come in contact with one or two other plates which are also
faced and grooved in the same way as the discs. These plates are stationary as they
are supported by the side frames of the gearing. The shaft has a key or feather fixed
to it. The spur wheel pinion, chain wheel, rope wheel or equivalent and the disc or
discs have keyways formed in them, but sufficient play is allowed in these keyways for
When sustaining a load the disc or
a slight rotary action independent of the shaft.
discs are forced against the outside stationary plate or plates by the bevelled wedge
shaped sections of the flange shroud or face or flanges shrouds or faces on one or both
sides of the spur pinion wheel chain wheel rope pulley or equivalent, which prevents
the load from running down.
One or both of the discs have a sleeve or collar which passes through the stationary
plates and at the end is a washer which is pressed against the outer part of the
stationary plates by a spring, which causes the disc or discs to run in contact with the
inner part of the stationary plate or plates.

page_text: The shaft above described is carried in bearings on the frame sides and has upon
it a driving or winding wheel, and the action is as follows:-
-
The power is applied to the winding wheel in the usual manner and turning the shaft in
one direction raises the load. Both the pinion and the disc or discs revolve with the
shaft freely. When the power is stopped the spur pinion wheel, chain wheel, rope
pulley or equivalent takes a slight backward motion and thereby wedges itself and the
dise or discs against the stationary plate or plates, and sustains the load from falling.
On turning the shaft in the opposite direction the key.of the shaft forces the disc or
dises forward and allows the load to descend. When the shaft is stopped the load
is sustained from running down.
It will be understood that the above described discs may be only one instead of two
and in this case the other side of the pinion wheel chain wheel rope pulley or
equivalent would come directly in contact with a stationary plate.
Dated this 3rd day of February 1888.

page_text: Improvements in or relating to Lifts, Hoists, Cranes, or the like.
I EDWARD THOMAS CLEATHERO of 34 Malpas Road Brockley in the County of Kent
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 the Construction and Arrangement of a Self Sustaining
Mechanism applicable to the Lift and other mechanisms and while modifications may
of course be made to adopt it to different purposes I will describe it in connection with
a Cage Lift.
On the shaft of the Lift, which shaft is capable of rotary motion, is a spur
pinion wheel, chain wheel, rope pulley, or equivalent, which has flanges shrouds or
faces on both sides one or both sides of which are bevelled wedge shape in two,
three, four or more sections and are in close proximity to the side of a disc or discs
which are also bevelled on one side to fit. The other side of the disc or discs are
faced and formed in grooves which come into contact with two other plates which
These
are also faced and grooved in the same way as the Disc or Discs.
two plates are stationary as they are supported by the side Frames of the
gearing. The shaft has a key or feather fixed to it. The spur pinion wheel chain
wheel rope pulley or equivalent and disc or discs have keyways formed in them but
sufficient play is allowed in the key ways for a slight rotary action independent of the
shaft, which when sustaining a load forces the disc or discs by the bevel faces being
in an oblique direction to each other hard against the stationary Flanges and prevents
the load from running down.
One or both Discs have a sleeve or collar which passes through the stationary plates
and at the end is a washer which is pressed against the outer part of the stationary
plate or plates by a spring which causes the disc or discs to run in contact with the
inner part of the stationary plate or plates.
The shaft above described is carried in bearings on the Frame sides and has upon
it a driving or winding wheel and the action is as follows
The power is applied to the winding wheel in the usual manner and turning the
shaft in one direction raises the load. Both the pinion and the disc or discs revolve
with the shaft freely. When the power is stopped the pinion takes a slight backward
motion and thereby wedges itself and the disc or discs against the stationary plates and
sustains the load from falling.
When the shaft is
It will be understood the above
By turning the shaft round in the opposite direction the key or feather on the shaft
forces the disc or discs forward and allows the load to descend.
stopped the load is sustained from running down.
described discs may only mean one instead of two.
In the accompanying Drawings Figure 1 is a side elevation Fig. 2 is a plan
shewing a belt power winding gear containing my improvements Fig. 3 is a general
view in elevation Fig. 4 is a sectional view Fig. 5 is an end view in elevation Fig. 6
is a plan of the disc or flange of pinion on a larger scale.

page_text: The same letters of reference indicate the same parts in the several figures of the
Drawing.
A is a shaft with a key or feather K fixed in it, B is a spur pinion wheel with
Cand D Flanges cast or otherwise fixed on. E is a disc with a sleeve H connected
and passes through the stationary plate F the sleeve His screwed, the two lock
nuts I. I. are tightened against the spring J which presses against the plate F and
thus holds the disc E in close contact with the plate F. The two plates F F are
supported by two tie rods G G₁ and held in position by the nuts M M M M. The
shaft A is connected to a spur wheel N Fig. 2 which is also geared to a pinion O which
receives its motive power from the belt pulley P the key or feather K coming
into contact with the pinion B (with flanges C and D connected and forming part of
the pinion B) and the disc E both move together. When the belt is thrown off the
pulley P the pinion B is actuated by the load on the winding drum which causes it
to move in a backward direction with the shaft A. The disc E remaining stationary
causes the outer grooved faces of D and E to be forced against the stationary
plates FF thus preventing the load from falling as the faces Cand which are in contact
with each other being formed bevelled or wedge shaped are in an oblique position
to each other. To lower the load the key Kon shaft A releases the lateral pressure
by bringing the pinion and disc into a parallel position to each other the grooved face D
thus being free from pressure against the grooved face F allows the pinion to
revolve with the motion of the shaft A and thereby lower the load.
Having thus described the nature of my Invention and the manner in which the
same is to be performed 1 wish it to be understood that I claim as my invention of
"Improvements in lifts or Hoists and other Elevators also for Steering and other
purposes
First. The construction and combination of the parts of the self sustaining mechanism
hereinbefore described and illustrated in the accompanying Drawing that is to say
the pinion wheel with flanges or shrouds bevelled on one or both sides in sections the
disc or discs bevelled on one side and grooved on the other side with sleeve and spring
and the stationary plates and the shaft with key. and slotted keyways in the pinion
wheel and disc or discs.
Secondly. Theconstruction and combination of the self sustaining gear or mechanism
hereinbefore described and illustrated in the accompanying drawing for arresting the
motion of machinery at the proper times also the adaptation of the the parts combined
as hereinbefore described.
In witness whereof 1 the said Edward Thomas Cleathero have hereunto set my
hand and seal this Thirty-first day of October in the year of our Lord One
thousand eight hundred and eighty eight.
E. T. CLEATHERO. (L.S.)