Improvements in and connected with the Flats of Carding Machines.
Year: 1893

page_text: Date of Application, 26th Apr., 1893
Complete Specification Left, 30th Dec., 1893-Accepted, 3rd Feb., 1894
PROVISIONAL SPECIFICATION.
||Communicated from abroad by SAMUEL BEAUMONT and FREDERICK GOMERSAL
BEAUMONT, both of 9, Rue de Florence, Paris, in the French Republic,
Engineers.]
Improvements in and connected with the Flats of Carding
Machines.
I, WILLIAM EDWIN HEYS of 70 Market Street Manchester in the County of
Lancaster, Fellow of the Chartered Institute of Patent Agents, do hereby declare
the nature of this invention to be as follows:-
When
The flats upon which the card clothing is secured in the stationary and revolving
flats of carding machines are generally constructed of cast iron or of wood.
they are constructed. of wood, they are subject to deformations which, however
slight, prevent perfect adjustment. The causes of these deformations are changes
of temperature in the carding rooms and alternations of humidity and dryness of the
atmosphere which act prejudicially and permanently, causing the wood to warp in
contrary directions and seriously affecting the carding and production.
In order to overcome these defects it has been proposed to clamp the wood
in the direction of the lengths of the flats, but the increase of weight which this
method of obtaining the necessary rigidity involves has in turn acted prejudicially,
and particularly when the flats are automatically stripped or cleared.
According to our invention we completely obviate the defects herein before referred
to without incurring any material increase of weight, and for this purpose we employ
a longitudinal rod or stiffener of aluminum or of an alloy of aluminum, or we may
employ a cover plate of the same metal or its alloy in combination with a stiffening
rod fillet or bar, also of the same metal or alloy.
Dated this 25th day of April A.D. 1893,
COMPLETE SPECIFICATION.
Improvements in and connected with the Flats of Carding
•
Machines.
I, WILLIAM EDWIN HEYS of 70 Market Street Manchester in the County of
Lancaster, Patent Agent, 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 :-
The flats upon which the cards are secured in stationary and revolving flat
When they
carding machines, are generally constructed of wood or of cast iron.
are constructed of wood, and more especially in the case of the self-stripper
machines, they are subject to deformations, which however slight, prevent perfect
adjustment. The causes of these deformations are changes of temperature in the
carding rooms and alterations in the hygroscopic conditions, which act prejudicially
and permanently, causing the wood to warp in contrary directions and seriously
affecting the carding and its production.
In order to overcome these defects it has been proposed to clamp the wood in the
direction of the length of the flats, but the increase of weight which this method
of obtaining the necessary rigidity, involving as it does the use of a metallic

page_text: rod or bar of sufficient rigidity, has in its turn acted prejudicially, and
particularly so in the Wellman or automatic self-stripping machines. Attempts
to construct them wholly of metal have also failed because of the still greater
increase in weight.
According to this invention, the necessary amount of rigidity without any material
increase in weight, is ensured by employing as the basis for the cards, plates of
aluminium or alloy of aluminium in combination with a stiffening rod fillet or bar
of the same metal or alloy, or of other suitable material.
The accompanying drawings illustrate this invention and the manner in which it
may be carried into practical effect.
Figure 1 is a side elevation, part of the middle portion being broken away, and
Figure 2 is a cross section of a flat.
A is a plate or strip of aluminium or of an alloy of aluminium such as "aluminium
bronze" containing a minimum of copper, upon which the card B is secured in
the usual manner. This plate is strengthened in the direction of its length by a
rod or bar C of aluminium or its alloys or of iron or steel, secured to the
plate A by screws rivets or other suitable means, the object of this bar or rod
being to prevent the flexure of the plate, or in other words to give to the flat the
necessary rigidity.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, as communicated to me.by
my foreign correspondents, I declare that what I claim is :-
Flats for carding machines, consisting of a plate of aluminium or of an alloy of
aluminium, upon which the card is secured, and a longitudinal rod or bar of suitable
rigid metal, constructed substantially as herein before described and as illustrated by
the accompanying drawings.
Dated this 28th day of December A.D. 1893.