improvements Apparatus Аррцового BIROLD Vagoog Lifts, and other Hoisting Apparatus, for the Prevention of Accidents.
Year: 1885

page_text: improvements
Apparatus Аррцового
BIROLD Vagoog
Lifts, and other Hoisting Apparatus, for the Prevention of
Accidents.
I LESSER JACOBS of 4 Bury Street St Mary Axe in the City of London
Merchant do hereby declare the nature of my invention for IMPROVEMENTS IN
APPARATUS APPLICABLE TO MINERS' CAGES, LIFTS AND OTHER HOISTING APPARATUS
FOR THE PREVENTION OF ACCIDENTS communicated to me from abroad by Mark
Lewinson of Ballarat Victoria Australia Gentleman to be as follows:-
The improvements have reference to safety apparatus for the prevention of
accidents arising from the breakage or failure of chains, ropes, rods or other parts
of hoisting gear such as miners' cages; lifts, elevators and such like raising and
lowering means.
The principal characteristics of the apparatus according to my invention are the
cage or lift into which the persons to be raised or lowered enter. This lift is
provided at its upper or other suitable part with a proper hook, loop or means of
attachment for the rope or chain from above which raises and lowers it; or, if
hydraulic means is employed the usual piston rod operates beneath it.
Attached to the cage are parts forming a groove or slide in which works a bar
or connection from two open frames one at each side of the cage and attached
again beneath the cage by a number of parallel bars which form a grid. These
frames are capable of swinging on the bar which slides up and down in the groove
already mentioned. At the sides of the cage are fixed plates which form a kind of
trough or guideway enclosing a zigzag rib which is attached at each side of the
lift way, mine shaft or other place where the lifting means is applied. Two rods
from the grid forming the lower part of the swinging frames engage the zigzag rib
and in the motion up and down of the cage these swinging frames at their lower
ends thereby partake of the zigzag course giving them a swinging or to and fro
motion whilst the cage itself is kept steady by the open troughs riding over the
outer or projecting parts of the zigzags; but, should the raising or lowering means
fail and the cage drop suddenly a blade or projecting portion at its lower part

page_text: inserts itself into one of the divisions of the grid or comes against an equivalent
part, the bar suspending the side frames rising in its groove and the projecting
parts of the grid being now prevented from following the zigzag course of the
guides they skid or jam thereon and prevent further vertical motion downwards
of the cage; but, immediately the lifting or raising means again comes properly
into operation, the cage is raised, the cross bar drops in its slide, the side frames
fall with it the distance governed thereby disengaging the grid from the locking
piece permitting the frames to resume their zigzag course down the zigzag ribs
and the whole cage to descend in its ordinary normal manner.
In order to reduce wear and tear antifriction rollers may be applied to the parts
running against the zigzag ribs or to other of the running parts.
The zigzag ribs may be made in sections or lengths which may be joined most
conveniently at the bends of the zigzags or so as to bring any increased thickness
at those parts where the most play between the fork or parts that engage therewith
is afforded.
The catch-blade or equivalent part and the bars of the grid or its equivalent
should be so formed by means of sharp meeting edges or otherwise that the catch
shall not be liable to rest on the bars but should engage therewith immediately.
For some uses it may be desired at times to remove the safety portion of the
apparatus to save wear and tear to those parts such for instance as when only
goods are being raised or lowered-this can be effected by withdrawing the bar on
which the side frames and grid are suspended thereby releasing those parts which
may be removed.
Should the occupants of the cage find themselves being lowered at a dangerous
rate of speed, that they were entering water gas foul air or for other reason desire
to arrest the downward progress of the cage this they may readily bring about by
stopping the oscillation of the side frames causing the projections to skid on the
zigzags or by a suitable appliance drawing up the grid or stop and causing it to
engage with the projection from the bottom of the cage bringing about the like
result and the locking of the cage at once preventing further descent.
For hotel and other lifts where it may be desireable to prevent access to the
cage or raising platform except when in its proper position or to the well with the
cages away, in front of the openings giving access to the lift may be hinged a part
which may be covered with a mat and adapted to automatically rise and close the
opening to the lift hole when the cage is absent but when the cage is in proper
position this may be lowered to the ground and there retained by parts which may
be again released by the removal of the cage.

page_text: Improvements in Apparatus Applicable to Miners' Cages,
Lifts, and other Hoisting Apparatus, for the Prevention of
Accidents.
I LESSER JACOBS of 4 Bury Street St Mary Axe, in the City of London,
Merchant do hereby declare the nature of my invention for IMPROVEMENTS IN
APPARATUS APPLICABLE TO MINERS' CAGES, LIFTS AND OTHER HOISTING APPARATUS,
FOR THE PREVENTION OF ACCIDENTS and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
The improvements have reference to safety apparatus for the prevention of
accidents arising from the breakage or failure of chains, ropes, rods or other parts
of hoisting gear such as miners' cages, lifts, elevators and such like raising and
lowering means.
Figure 1 shews a section longitudinally of the lift. Figure 2 shews a side view
of the same and Figure 3 is a front view thereof Figure 4 indicates by a separate
view of the cage and parts adjacent thereto the locked position of the controlling
parts the supporting rope being supposed to have suddenly parted, and Figure 5
by an underside view the engagement of the locking parts.
The principal characteristics of the apparatus according to my invention will be
most clearly understood by the aid of the accompanying drawings in which A is
the cage or lift into which the persons matters or goods to be raised or lowered
enter. This lift A is provided at its upper or other suitable part with a proper
hook, loop or means of attachment 6 for the rope or chain 6 from above which
raises and lowers it; or, if hydraulic means is employed the usual piston rod
operates beneath it.
This drawing represents the cage by means of outline or diagram only as the
form of chamber or receptacle is immaterial to the application of the invention.
Attached to the cage A are parts forming a groove a² or slide in which works a
bar c or connection from two open frames d d one at each side of the cage and
attached again beneath the cage by a number of parallel bars c, e¹, e², e, which
form a grid. These frames d, d³, are capable of swinging on the bar c which slides
up and down in the groove a¹ already mentioned. At the sides of the cage A are
fixed plates a³ which form a kind of trough or guideway a³ enclosing a zigzag or
serpentine coursed rib f which is attached at each side of the lift way, mine shaft
or other place where the lifting means is applied represented by the parts g, g in
the present drawing.
"
Two rods e¹ e from the grid forming the lower part of the swinging frames d d¹
engage the zigzag rib f and in the motion up and down of the cage A these
swinging frames d, d, at their lower ends thereby partake of the zigzag course
giving them a swinging or to and fro motion whilst the cage A itself is kept
steady by the open troughs a³ riding over the outer or projecting parts f¹ of the
zigzags f; but, should the raising or lowering means fail and the cage A drop
suddenly a brake h or projecting portion at its lower part inserts itself into one of
the divisions of the grid e or comes against-an equivalent part, the bar o suspending

page_text: the side frames d, d, rising in its groove and the projecting parts e¹, e³, of the
grid e being now prevented from following the zigzag course of the guides they
skid or jam thereon and prevent further vertical motion downwards of the cage A;
but, immediately the lifting or raising means again comes properly into operation,
the cage A is raised, the cross-bar c drops in its slide a¹, the side frames d, d², fall
with it the distance governed thereby disengaging the grid e from the locking
piece h permitting the frames d, to resume their zigzag course down the zigzag
ribs and the whole cage and attachments to descend in its ordinary normal
manner.
In order to reduce wear and tear antifriction rollers may be applied to the
ends ele, of the parts or projections running against the zigzag or serpentine
ribs for to other of the running parts.
The zigzag ribs f may be made in sections or lengths which may be joined most
conveniently at the bends fl of the zigzags f or so as to bring any increased
thickness at those parts f¹ where the most play between the fork e¹, e³ or parts
that engage therewith is afforded.
The catch-blade h or equivalent part and the bars 6, e¹, e, e³, of the grid or its
equivalent should be so formed by means of sharp meeting edges or otherwise that
the catch shall not be liable to rest on the bars but should engage therewith
immediately.
For some uses it may be desired at times to remove the safety portion of the
apparatus to save wear and tear to those parts such for instance, as when only
goods are being raised or lowered—this can be effected by withdrawing the bar c
on which the side frames d d and grid e are suspended thereby releasing those
parts which may be removed.
Should the occupants of the cage find themselves being lowered at a dangerous
rate of speed, that they were entering water, gas, foul air or for other reason
desire to arrest the downward progress of the cage this they may readily bring
about by stopping the oscillation of the side frames ad causing the projections e',
to skid on the zigzags for by a suitable appliance drawing up the grid e or stop
and causing it to engage with the projection h from the bottom of the cage
bringing about the like result and the locking of the cage at once preventing
further descent.
For hotel and other lifts where it may be desireable to prevent access to the
cage or raising platform except when in its proper position or to the well with the
cages away, in front of the openings giving access to the lift may be hinged a
part which may be covered with a mat and adapted to automatically rise and close
the opening to the lift-hole when the cage is absent but when the cage is in
proper position this may be lowered to the ground and there retained by catching
parts which may be again released by the removal of the cage, but I make no claim
to this means of preventing access.
Having now particularly described and ascertained the nature of my Baid
invention and in what manner the same is to be performed, I declare that what
J. claim is :-
The construction and arrangement of parts of apparatus for use with miners*
cages, lifts and hoisting apparatus for the prevention of accidents, operating aș
set forth.