Improvements in or relating to Cranes, Mortar Mills, and similar Apparatus.
Year: 1894

page_text: Calata
Date of Application, 31st Dec., 1894
004
Sant
4.905
Lacantad
Ath Nov
1005
PROVISIONAL. SPECIFICATION.
Improvements in or relating to Cranes, Mortar Mills, and similar
Apparatus.
I, THOMAS WHITAKER, of Horsforth, near Leeds, in the County of York,
Contractor, do hereby declare the nature of this invention to be as follows:-
This invention is designed to provide for the actuating or driving of cranes,
mortar mills and other machinery by means of oil engines.
On the driving shaft of the machine I place a fly wheel or friction wheel and. I
so arrange or place the oil engine that the fly wheel of it or a friction wheel
rotated thereby is in line therewith. Between these I place a link motion or
other device carrying a number of friction wheels or pulleys which by the
movement of the lever controlling the mechanism can be thrown into or out of
gear or contact with the friction wheels of the engine and the machine.
These movable friction pulleys or wheels are preferably arranged in two sets,
one set placed above the other, the centre of one set being at one side of and of
the other set at the other side of a centre line passing through the centre of the
driving and driven wheels. One set preferably the bottom set consists of two
pulleys and the other set of one pulley in order to transmit motion in either
direction to the driven wheel.
These movable friction pulleys are mounted on studs carried by links or the
like the central member of which is capable of sliding or of being moved
longitudinally between the friction wheels and carrying with it the two sets of
friction pulleys. The link motion is connected by a crank, bell-crank eccentric or
similar device with a pivoted lever moving to and fro in a quadrant which is also
preferably provided with a counter balancing weight. The movement of the lever
about its pivot moves the link motion to and fro.
In operation it is capable of being placed in three positions, the first in which
the first set of pulleys are lifted out of gear with the wheels, and the second set
brought into gear to give the forward movement; the second, in which the second
set of pulleys are moved out of gear, and the first set brought into gear to give
the backward movement, and the third in which both sets of pulleys are placed
out of contact with the wheels to bring the crane or other machine to rest.
Dated this 28th day of December 1894.
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
Improvements in or relating to Cranes, Mortar Mills, and similar
Apparatus.
1, THOMAS WHITAKER, of Horsforth, near Leeds, in the County of York,
Contractor, 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 is designed to provide for the actuating or driving of cranes,

page_text: excavating machines, mortar mills and other machines by means of oil engines in
substitution for steam engines or cylinders in order to obviate the necessity of
providing or finding sufficient water to supply the boiler and of carrying bulky
fuel coal or coke for the furnace.
It consists essentially in the application to cranes excavating machines, mortar
mills or other similar machines of an oil engine as a driving motor connected by
means of a movable slide or link motion carrying a number of friction wheels or
pulleys placed between the fly wheel of the oil engine and the driving or actuating
wheel of the machine.
The invention will be fully described with reference to the accompanying
drawings wherein as an example it is shown as applied to the working of a
crane.
Fig. 1. Side elevation of crane.
Fig. 2. Side elevation enlarged of the operating mechanism.
Fig. 3. End elevation of same.
Fig. 4. Side elevation of jib of excavating apparatus.
Fig. 5. Front elevation of same.
Fig. 6. Side elevation of another jib differently arranged.
Fig. 7. Front elevation of same.
The crane A is of any ordinary construction and upon the base B in substitution
for the ordinary steam boiler and cylinders I place an oil engine C of the usual
type.
On the driving shaft of the machine I place a friction wheel D in line with the
fly wheel E of the oil engine or a friction wheel rotated thereby. Between the
wheels D and E I place a frame For a link or other device carrying a number of
friction wheels G, H and H¹ which can be thrown into or out of gear or contact
with the friction wheels D and E on the crane and oil engine respectively.
The friction wheels G, H and H₁ are arranged in sets one placed above the
other so that by moving them up and down either set may be brought into gear
with both the friction wheels D and E. I at present prefer to employ three of
these friction wheels arranged as shown with one above and two below to transmit
movement from the wheel D to the wheel E in either forward or backward
direction. The top set may consist of two wheels and the bottom set may
comprise three wheels or vice versa, one set containing one wheel more than the
other. I prefer to employ flat faced friction wheels as shown but they may be of
V shape or grooved or otherwise formed if desired.
The movable friction wheels G H and H are mounted upon studs or spindles g
and which rotate in movable bearings K in the sliding frame For the spindles
or studs and h may be carried by links or arms pivoted to the frame F. The
frame is capable of sliding or of being moved longitudinally between the
friction wheel D on the driving shaft of the crane and the friction wheel E on
the oil engine shaft and as the frame F is moved the friction wheels G, H and H¹
are moved with it so that one set or other can be moved into gear with the
wheels D and E.
The sliding frame F is connected by a crank arm for by an eccentric or other
equivalent device with the pivoted handle or lever L by which it is caused to
slide in either direction as required and takes the place of the ordinary starting
lever. The hand lever L moves to and fro over a quadrant / similar to that
employed for the ordinary starting lever.
11
À balance weight M is connected by the arm or lever m to the spindle upon
which the lever L is pivoted to counterbalance the weight of the sliding frame F
and friction wheels carried thereon. The sliding frame F is held in position by
and slides in brackets f' attached to the side of the crane.
When this invention is applied to excavating machines it is necessary (as there
is no steam generator) to provide means for actuating the bucket N which it has
hitherto been usual to move to and from the face of the excavation and regulate
the depth of cut by a steam cylinder. I now actuate the crank arm n to which the

page_text: bucket N is suspended by the movement of the pulley O at the jib head either by
means of a driving chain or a shaft R. To the pulley OI attach or connect
a second wheel or pulley S or S₁ either formed to receive the chain P or with
bevel teeth to gear with a small bevels on the end of the shaft R. Where the
driving chain P is employed (see Figs. 4 and 5) it leads on to the wheel T which
connects by the train of wheels with the crank arm n. Clutches U and U' are
provided by which they can be thrown into and out of gear as required. The
chain P is preferably arranged to gear with two wheels TT and two clutches U
and U are employed so that the bucket may. be actuated in either direction as
required irrespective of the direction of movement of the winding chain and of
the chain P. Where the shaft R is employed (see Figs. 6 and 7) it is provided
at its lower end with a bevel wheel gearing into two bevels loose on the
shaft n' with a double clutch u between them which can be thrown into gear with
either of them to actuate the bucket N in either direction.
In each case a brake wheel V and brake strap v are provided to stop or hold
the bucket. It is also to be understood that instead of the crank arın n for
actuating the bucket N pinions may be employed and the bucket be provided with
a rack.
In operating the crane or other machine the sliding frame with the friction
wheels G, H and His capable of being placed in three positions the first in
which one friction wheel G or set of friction wheels are in gear with the friction
wheels D and E (as shown in full lines Fig. 2) to give the forward movement;
the second position in which the second set of friction wheels H and H are in
gear with the friction wheels D and E (as shown in dotted lines Fig. 2) to give
the backward movement; and the third position midway between the other two in
which both sets of friction wheels are out of contact with either of the friction
wheels D and E to bring the machine to rest.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is :-
1. A crane excavating machine mortar mill or other machine constructed with
an oil engine attached to the base and connected with the driving shaft thereof by
means of two sets of friction wheels carried on a movable frame or the like
interposed between friction wheels on the shafts of the oil engine and the machine
and capable of being thrown into and out of gear therewith substantially as
described.
2. The combination with a crane or other machine and an oil engine attached
thereto of actuating mechanism comprising a movable frame two sets of friction
wheels connected thereto by sliding bearings pivoted links or otherwise interposed
between and capable of being thrown into and out of gear with friction wheels on
the shafts of the oil engine and machine respectively a starting and reversing
handle connected to the movable frame by a crank or lever for moving it to and
fro and a balance weight substantially as described and shown.
Dated this 27th day of Santamber 1895
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.