IMPROVEMENTS IN SELF-PROPELLING OR LOCOMOTIVE ENGINES
Year: 1876

page_text: LETTERS PATENT to Robert George Burrell, of Thetford, in the County of
Norfolk, Engineer and Ironfounder, carrying on business at Thetford, aforesaid,
with Charles Burrell the elder and Charles Burrell the younger, as Engineers
and Ironfounders, under the Style or Firm of "Charles Burrell and Sons,"
for the Invention of "IMPROVEMENTS IN SELF-PROPELLING OR LOCOMOTIVE
ENGINES"
Sealed the 24th April 1877, and dated the 16th November 1876.
PROVISIONAL SPECIFICATION left by the said Robert George Burrell at
the Office of the Commissioners of Patents on the 16th November 1876.
ROBERT GEORGE BURRELL, of Thetford, in the County of Norfolk, Engineer
and Ironfounder, carrying on business at Thetford, aforesaid, with Charles Burrell
the elder and Charles Burrell the younger, as Engineers and Ironfounders, under
the Style or Firm of "Charles Burrell and Sons." IMPROVEMENTS IN SELF-
PROPELLING OR LOCOMOTIVE ENGINES."
"
This Invention relates to a peculiar construction and arrangement of self-
propelling or locomotive engines. A winding drum is fixed upon the main or
driving axle of the locomotive in direct combination with the usual break pulley
and driving disc.
The winding drum, break pulley, and driving disc, can be either cast in one
piece and keyed or secured on the axle, or one of the above parts, viz., winding
drum, break pulley, and disc, can be secured to the axle, and the others fastened
to it.
By combining the three parts, viz., winding drum, break pulley, and driving disc,
in the manner described, the construction of the same is greatly simplified. The
main wheels can be made fast with the driving discs on the main or driving axle
when the engine is required to propel itself over the ground, or can be disconnected
when the winding drum is to be brought into use.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Robert George Burrell in the Great Seal Patent Office on the
16th May 1877.
ROBERT GEORGE BURRELL, of Thetford, in the County of Norfolk, Engineer
and Ironfounder, carrying on business at Thetford, aforesaid, with Charles Burrell
the elder and Charles Burrell the younger, as, Engineers and Ironfounders, under
the Style or Firm of "Charles Burrell and Sons." IMPROVEMENTS IN SELF-
PROPELLING OR LOCOMOTIVE ENGINES."
"
This Invention relates to the application of a winding drum upon the main or
driving axle of self-propelling or locomotive engines in direct combination with the
usual driving disc and brake pulley.
The improvements are shown in the drawings hereunto annexed.
In the arrangement shown at Figure 1 A is a winding drum; B, a brake pulley;
C, a driving disc; D, the main or driving axle ; E, one of the driving wheels; G, a
moveable pin coupling the driving wheel E to the disc C.
The winding drum A is combined with the brake pulley B and driving disc C,
the whole being either cast in one piece or constructed separately, and then
connected together by bolts or other suitable means, a spur wheel or driving
wheel H is also where required combined with the above, and the whole is keyed on
the axle D, or otherwise secured to it. The axle D can be disconnected from the
driving wheel E by withdrawing the pin G, similar or suitable means being used to
disconnect the other end of the axle from the other driving wheel..
The arrangement shown at Figure 2 represents a winding drum combined with
the driving disc of what is known as "compensating gear" now commonly used in
self-propelling or locomotive engines for giving motion to the driving wheels.
A is the winding drum combined with a brake pulley B and driving disc C,
a spur or driving wheel H being also combined with it as required. The whole is
either cast in one piece or constructed separately and connected together by bolts or
other suitable means.
The driving disc C as is usual in what is known as " compensating gear"
carries bevil pinions which gear with two bevil wheels, one of which is fast on
the axle D. and the other of which can be made fast to the driving wheel E
by a moveable pin G which can be taken out when required to disconnect the
wheel.
The mode of using the above arrangements is as follows:-In the arrangement
No. 1 the combined casting A, B, C, (and sometimes also H) is used when travelling
on the road as is usual as an ordinary driving disc in respect to the driving wheel E,
as also as a brake pulley generally, the pin G being in its place as shown. When
however the engine is stationary, and the winding drum or hauling drum A (which
is provided with a suitable rope or chain) is required to be used, the pin G is with-
drawn from the disc C, as also any pin or other coupling that may exist between the
other driving wheel and the other end of the driving or main axle D; the winding
drum A. is then free to revolve with the axle D independently of the driving wheels,
and can be used either to haul goods or materials, or the engine itself along, as may
be required, 'power being applied the same as if the engine was being propelled
along the road by its driving wheels.
In the arrangement No. 2 the combined casting A, B, C, (supplemented generally
by a spur wheel H) is used when travelling along the road as is usual, as the ordinary
driving disc of the compensating gear, the pin G being in its place as shewn.
When the engine is stationary and the winding drum is required to be used, the
pin G is withdrawn from the bevel wheel F, the winding drum A is then free to
revolve independently of the driving wheels, and can then be used for the purposes
as described in the arrangement No. 1.
The above arrangements supply a want long felt of a simple and compact

page_text: arrangement of a winding drum applied to self-propelling engines for the various
uses of hauling or winding.
Having thus described the nature of my Invention and the manner of performing
the same, I would have it understood that I claim as my improvements in self-
propelling or locomotive engines,―
Firstly. The simple and compact plan herein-before described and illustrated at
Figure 1, in which a winding drum, brake pulley, and driving disc (sometimes also
a spur wheel) are constructed and combined in one, and keyed or otherwise secured
to the main or driving axle, so as to serve not only as a driving disc and brake
pulley in respect to the driving wheel or wheels, but which can also when dis-
connected from the driving wheels be used independently as a winding or hauling
drum, the main axle then revolving with it in the driving wheel bosses.
Secondly. I claim in self-propelling or locomotive engines the simple and compact
plan, herein-before described and illustrated at Figure 2, of arranging or combining
on the main or driving axle a winding drum, brake pulley, and driving disc,
(generally a spur wheel is also combined with it), so as not only to form the centro
or driving disc of what is known as compensating gear now often used on the main
or driving axle of self-propelling engines, but which can also be used (by dis-
connecting it from the driving wheels) as a winding drum.
The brake pulley is not essential to either of these arrangements.
In witness whereof, I, the said Robert George Burrell, have hereunto set my
hand and seal, this Fifteenth day of May, in the year of our Lord One
thousand eight hundred and seventy-seven.
ROBERT GEORGE BURRELL. (L.s)