Improvements in the Blocks for Traction Engine Wheels, and other purposes.
Year: 1891

page_text: Date of Application, 14th Aug., 1891
Complete Specification Left, 9th June, 1892-Accepted, 30th July, 1892
PROVISIONAL SPECIFICATION:
Improvements in the Blocks for Traction Engine Wheels, and other
purposes.
ISAAC WATT BOULTON, Engineer Ashton under Lyne Lancashire do hereby
declare the nature of this invention to be as follows:-
This invention has for its object the providing and applying a combined wood
and iron or steel or other suitable material in the form of a block, to work in the
chambers of traction engine wheels. propose to make the block preferabely of
wood parrellell and to loop it with iron or steel so that the hoop can move or
slide up the block as the block wears thereby preventing the hoop from touching
the ground.
Dated this 19th day of August 1891
ISAAC WATT BOULTON.
COMPLETE SPECIFICATION.
Improvements in the Blocks for Traction Engine Wheels and other
purposes.
ISAAC WATT BOULTON Engineer Ashton under Lyne Lancashire 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 has for its object the providing and applying a combined wood
and iron or steel or other suitable material in the form of a block to work in the
chambers of traction engine wheels I propose to make the block preferabely of
wood parellel, and to hoop it with iron or steel so that the hoop can move or slide
up the block as the block wears, thereby preventing the hoop from touching the
ground.
I more particularly describe my invention in conjunction with the accompanying
drawings, as follows:-
Fig. 1 is a sectional elevation of a traction engine wheel rim, showing one block
in position and chambers for other such blocks.
Fig. 2, plan of same, showing the manner in which I place my blocks (A.) on
the circumference of the rim.
Fig. 3. represents an elevation of block to an enlarged scale; A parallel
wood block, B hoop of iron, steel, or other suitable material, placed near the
outer end or tread of block; Choop of suitable material to protect inner end of
block A.
Fig. 4. plan of block.
Fig. 5, is a sectional elevation of block, B* bevilled inner edge or bell mouthing
of the hoop B, on the parallel wood block A; D bolt (held by pin or cotter D*)
holding block in its chamber in the rim of wheel..
In my Patent No. 17,708, December 24th 1887, Fig. 4, I show a shoulder of
wood between the edges of hoops placed there, this shoulder would require cutting
down before the outer hoop could be moved on the block in case of wear.
But
in my present block I dispense with the shoulder and also bell mouth or bevil
the inner edge of hoop B at B* by this means as the wood block A weares it
brings the hoop B in contact with the road and it is pressed and slides or moves
further up the wood block A, and the bell mouthing B* prevents a shoulder
forming between the two hoops B and C before referred to.
Dor

page_text: Provision for wear in the wood block is also made by inserting poplar liners at, E,
immediately under the hoop C and block A.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A parallel block without shoulder upon it, and the bell mouthing or bevilling off
the inner edge of the hoop, B. as herein described and illustrated by the accom-
panying drawings.
ISAAC W. BOULTON.