IMPROVEMENTS IN TRACTION OR ROAD ENGINES
Year: 1881

page_text: LETTERS PATENT to James Firth Dyson, of Stainland, near Halifax, in the
County of York, for an Invention of "IMPROVEMENTS IN TRACTION OR ROAD
ENGINES"
PROVISIONAL SPECIFICATION left by the said James Firth Dyson at the
Office of the Commissioners of Patents on the 17th January 1881.
JAMES FIRTH DYSON, of Stainland, near Halifax, in the County of York.
"IMPROVEMENTS IN TRACTION OR ROAD ENGINES."
The primary object of these improvements is to construct a traction or hauling
engine in such manner as to obtain considerably more adhesion or grip on the hind
wheels or driving wheels than can be obtained on the present construction of
engine, whilst at the the same time the means or method adopted for giving the
additional adhesion may be utilised for carrying the stone or other material which
is being removed.
The Invention consists in combining with or forming the hind part of the engine
something like a wagon, the axle of the driving wheels being placed underneath or
at the sides of the additional wagon in such manner that the weight contained
therein shall be borne upon and carried by the said driving wheels. By this means
considerably more weight is placed upon the driving wheels, consequently
additional grip and adhesion is given thereto, and slipping or skipping prevented.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said James Firth Dyson in the Great Seal Patent Office on the
15th July 1881.
JAMES FIRTH DYSON, of Stainland, near Halifax, in the County of York.
"IMPROVEMENTS IN TRACTION OR ROAD ENGINES."
The primary object of these improvements is to construct a traction or hauling
engine in such a manner as to obtain considerably more adhesion or grip on the
hind wheels or driving wheels than can be obtained on the present construction of
engine, whilst at the same time the means or method adopted for giving the
additional adhesion may be utilized for carrying the stone or other material which
is being removed.
The Invention consists in combining with or forming the hind part of the engine
something like a waggon, the axle of the driving wheels being placed underneath or
at the sides of the additional waggon in such manner that the weight contained
therein shall be borne upon and carried by the said driving wheels.
In order that the Invention may be better understood, I have herein given
reference to the accompanying Sheet of Drawings illustrative thereof. Fig. 1 is
part front elevation, and Fig. 2 part plan view of a traction or road engine con-
structed according to my Invention. The part A, which is attached to and forms
part of the engine or machine, is made hollow, and answers. the purpose of a
waggon. B are the hind wheels or rollers working upon the axles or studs C
projecting from the outside of the waggon, but they may be placed underneath.
By this construction of engine or machine considerably more weight is placed
upon the driving wheels than is the case with the engines as at present constructed,
consequently additional grip and adhesion is given to the wheels, and slipping or
skipping prevented.
Having now described the nature of my said Invention, and described by the
aid of Drawings how the same may be carried into practice, I would have it
understood that I do not limit myself to the exact details or configuration of the
parts I have described and shewn, as the same may be varied or modified without
departing from the nature of my said Invention, but what I do claim and desire to
be secured to me by Letters Patent is,-
Firstly. The combination of the hollow part or waggon A with a traction or road
engine, for the purposes substantially as herein shewn and described.
Secondly. The combination of the waggon A and wheels or rollers B when
attached to or forming part of a traction or road engine, substantially as shewn and
described.
In witness whereof, I, the said James Firth Dyson, have hereunto set my
hand and seal, this Twelfth day of July, in the year of our Lord One
thousand eight hundred and eighty one.