Improvements in Mangles and Wringers.
Year: 1892

page_text: Date of Application, 12th Jan., 1892
Complete Specification Left, 12th Oct., 1892-Accepted, 19th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in Mangles and Wringers.
I, CHARLES THOMAS RAWSON of London Road, Sheffield, in the County of
York, Machine Maker, do hereby declare the nature of my invention to be as
follows:-
This invention of improvements in the construction of mangles and wringing
machines has for its object to counteract a well known weakness and source of
damage to the wheels of such machines.
It is usual to support two of the driving wheels of these machines upon a pin or
stud projecting from the side casting of the framework, and in a short time this pin
droops, and causes an alteration in the relative position of the wheels, the teeth of
which are then easily damaged.
I propose to remedy this by extending the pin through the boss of the said
wheels, and supporting at that end by a bracket or arm, which I carry downwards,
bending it under the larger wheel and securing its extremity which is suitably
shaped for the purpose, to the framework.
Dated the 11th day of January 1892.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Mangles and Wringers.
I, CHARLES THOMAS RAWSON of London Road, Sheffield in the County of
York, Machine Maker 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 of improvements in the construction of mangles and wringing
machines has for its object to counteract or do away with a source of damage to
the driving wheels of such machines, and to cause the machine to work with greater
freedom and less noise.
The annexed sheet of drawings will clearly demonstrate the method of carrying
the invention into practice.
Fig. 1, is a front view of the lower driving wheel of a mangle, with the supporting
bracket or arm, and stud, attached to the standard.
Fig. 2, is a side view of same, with the broad edge of the standard removed.
In mangles and wringers of the usual modern construction, it is the practice to
carry the lower driving wheel A, and its connected pinion B, (the two being usually
cast together in one piece,) upon a stud C, which is made shorter than the one
shown so as to project through the wheel sufficiently to have a split cotter passed
through it to prevent the wheel coming off. The other end is usually tapered to
fit into a correspondingly tapered hole in the standard D, and secured by a
nut E.
This stud by reason of the weight, and pressure of the wheels in working the
machine, gradually bends downwards, bringing the wheels out of line with each
other, throwing the teeth out of correct gear and thus increasing the strain and
the noise, and usually breaking off some of the teeth.
To avoid this I use a longer stud C, extending through the boss of the wheel A,
and passing into a bearing formed in the top part of a bracket or arm F, the lower
part being carried down below the bottom edge of the wheel A, passing under it,
[ Pr'cond r

page_text: and terminating in a plate which fits between the mouldings of the standard D, to
which it is secured by bolts G. This lower part of the bracket F, may be varied
in form to suit the pattern of the machine, and it may in some cases be made arched,
or with two.feet if preferred.
This bracket gives great support to the end of the stud, and effectually prevents
the drooping of said stud and the consequent trouble before referred to.
Having now particularly described and ascertained the nature of my inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1 The combination with a mangle or wringer of a supporting bracket to carry.
the end of the shaft or stud on which the lower driving wheels are placed, sub-
stantially as hereinbefore described and shown.
2-In mangles or wringers, supporting the outer end of the stud upon which the
lower driving wheels revolve, by means of a bracket secured to the framework
substantially as hereinbefore described and illustrated.
Dated the 10th day of October 1892.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.