IMPROVEMENTS IN AND RELATING TO STEAM TRACTION LOCOMOTIVE CRANES
Year: 1883

page_text: LETTERS PATENT to Thomas Aveling of Rochester in the County of Kent
Engineer and William Dent Priestman and Samuel Priestman both of
Kingston upon Hull in the County of York Engineers for an Invention
of IMPROVEMENTS IN AND RELATING TO STEAM TRACTION LOCOMOTIVE
CRANES"
PROVISIONAL SPECIFICATION left by the said Thomas Aveling, William
Dent Priestman and Samuel Priestman at the Office of the Commissioners of
Patents on the 24th August 1883.
THOMAS AVELING, of Rochester, in the County of Kent, Engineer and WILLIAM
DENT PRIESTMAN and SAMUEL PRIESTMAN, both of Kingston upon Hull, in the
County of York, Engineers "IMPROVEMENTS IN AND RELATING TO STEAM
TRACTION LOCOMOTIVE CRANES"
Our Invention relates to certain improvements hereinafter more particularly
mentioned in steam traction locomotive cranes and has for its object to render
such steam traction locomotive cranes more generally useful on farms and land and
for contractors and like work.
Steam traction locomotive cranes as at present made are generally constructed
as an ordinary road locomotive fitted at the front end with a jib crane, the
winding barrel of the crane being situated underneath the boiler of the locomotive,
or in other convenient place. This arrangement of crane is however only suitable
for general raising and lowering traction and driving purposes
Now our Invention consists in providing such cranes with appliances for
working self acting grabs, buckets and similar tools and thereby rendering the
steam traction locomotive cranes much more generally useful as the crane is
enabled to be used for dredging purposes generally and raising and lowering
substances and materials such as grain, coal, sand, gravel, manure and the like by
means of self acting tools.
-
In the carrying out of our Invention, we provide a steam traction locomotive
with a slewing jib crane fitted with duplex sheaves at the head of the jib and

page_text: on the top of the crane pillar, or in an equivalent position these sheaves we use
one for the lifting chain of the self acting grab, or like appliance and one for the
discharging chain, the lifting chain leading over its sheaves to the winding barrel
of the engine, which may be under the boiler, or in other suitable position. The
other chain, namely the discharging, or opening chain, we lead over its sheaves to
an appliance for taking in and giving out the discharging chain as necessary in
working self acting grabs buckets and like tools. This taking in and giving out.
appliance may take the form of a system of sheaves and pulleys actuated by a
weight, so as to gather in the discharging chain in a small compass, or the appliance
may take the form of a drum pinion and rack the drum acting as a weight to
gather in the chain, or the appliance may take the form of a drum, or barrel
worked by a messenger or gearing from the winding barrel; in all cases a brake
being provided to hold the discharging chain when required in working. The
slewing of the jib is effected by suitable worm, or bevel gear worked from the
crank shaft of the engine.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Aveling, William Dent Priestman and Samuel Priestman
in the Patent Office on the 21st February 1884.
THOMAS AVELING, of Rochester, in the County of Kent, Engineer, and WILLIAM
DENT PRIESTMAN and SAMUEL PRIESTMAN, both of Kingston-upon Hull, in the
County of York, Engineers "IMPROVEMENTS IN AND RELATING TO STEAM
TRACTION LOCOMOTIVE CRANES
Our Invention relates to certain improvements herein after. more particularly
mentioned in steam traction locomotive cranes and has for its object to render such
steam traction locomotive cranes more generally useful on farms and land and for
contractors and like work.
Steam traction locomotive cranes as at present made are generally constructed
as an ordinary road' locomotive fitted at the front end with a jib crane, the winding
barrel of the crane being situated underneath the boiler of the locomotive, or in
other convenient place. This arrangement of crane is however only suitable for
general raising and lowering traction and driving purposes.
Now our Invention consists in providing such cranes with appliances for
working self acting grabs, buckets, and similar tools and thereby rendering the
steam traction locomotive cranes much more generally useful, as the crane is
enabled to be used for dredging purposes generally, and raising and lowering
substances and materials, such as grain, coal sand, gravel, manure, and the like
by means of self acting tools.
In the carrying out of our Invention we provide a steam traction locomotive
with a slewing jib crane, fitted with duplex sheaves at the head. of the jib and on
the top of the crane pillar, or in an equivalent position; these sheaves we use one
for the lifting chain of the self acting grab or like appliance and one for the
discharging chain, the lifting chain leading over its sheave to the winding barrel
of the engine, which may be under the boiler, or in other suitable position. The
other chain namely the discharging, or opening chain, we lead over its sheave to
an appliance for taking in and giving out the discharging chain as necessary in
working self acting grabs, buckets and like tools. This taking in and giving out
appliance may take the form of a system of sheaves and pulleys, actuated by a
weight, so as to gather in the discharging chain in a small compass, or the
appliance may take the form of a drum, pinion and rack, the drum acting as a
weight to gather in the chain, or the appliance may take the form of a drum; or
barrel worked by a messenger or gearing from the winding barrel; in all cases
a brake being provided to hold the discharging chain when required in working.
The slewing of the jib is effected by suitable worm, or bevel gear worked from the
crank shaft of the engine.
The beforegoing being the nature, object and purposes of our Invention, we
will now proceed to describe more in detail how the same may be carried out into
practical effect and for that purpose we have hereunto attached two sheets of
Drawings illustrative of our Invention which are marked with figures and letters
of reference corresponding with those in the following explanation. Like letters
and figures denote like, or corresponding parts throughout the various views.
Reference to the Drawings.
Figure 1 is an elevation of a steam traction locomotive crane according to our
Invention.
◊ is a plan of Dionna 1

page_text: Figure 4 is an elevation showing the operating mechanism of a steam traction
locomotive crane according to our Invention.
Figure 5 is a plan of Figure 4.
It will be seen that A is the boiler of a traction locomotive on front of which
there is mounted a slewing jib B, the head of which we provide with duplex
sheaves D. E. We also provide the sheaves F. G on the crane pillar C. We use.
the sheaves DF for the lifting rope or chain d of the self acting grab, or like
appliance Hand we use the sheaves E G for the discharging rope, or chain of
the grab, or like appliance H. The lifting,chain d leads over the sheaves D F F
to the winding barrel I of the engine which may be under the boiler A as shown,
or in other suitable position. The discharging, or opening chain e leads round the
shenves EGG to an appliance J for taking in and giving out the chain e as
necessary in working the self acting grab, or like appliance HL This taking in
and giving out appliance J may take the form of a system of fixed sheaves K and
inoveable sheaves K' round which the chain e is led, n weight K2 pendant from
the sheaves K being provided so as to draw the sheaves K' from the sheaves K
and so gather in the chain e which is payed out again on the lifting of the pulleys K'
consequent upon the hauling of the chain e by lowering of the grab appliance H.
A brake L is provided to hold the chain e as and when required in working the
self acting grab appliance H. The brake L is operated by the weighted lever L'
and the rope, or chain g which latter is worked by the lever g'.
The slewing of the jib B is effected by the worm and worm wheel gear M
operated from the crank shaft of the engine, as required.
Having now described our Invention and shown a means by which it may be
carried into practical effect, we claim
In connection with steam, traction locomotive Cranes
First The combination of a secondary chain e with a gathering in appliance
such as J and a brake L operated by a rope g and lever g₁ and provided with the
slewing gear M and whereby such steam traction locomotive crane can be used for
working self acting grabs, buckets and like tools substantially as herein described
and shown in the Drawings hereto annexed.
Second The combination of parts arranged, constructed and operating togetlier
as herein described and shown in the Drawings hereto annexed for the purposes set
forth.
In Witness whereof, I, the said William Dent Priestman on behalf of myself and
my joint Inventors the said Thomas Aveling and Samuel Priestman have, to this
our Specification hereunto set my hand and seal this Fifteenth day of February in
the year of our Lord one thousand eight hundred and eighty four.
Signed sealed and delivered by the
said William Dent Priestman in
the presence of
J. W. M. CoUSIN
Clerk with
Messrs Priestman Bro, Hull.
DENT PRIESTMAN
(L.S.)