Improvements in or relating to Centrifugal Machines.
Year: 1899

page_text: Date of Application, 2nd Dec., 1899
Complete Specification Left, 3rd Sept., 1900-Accepted, 13th Oct., 1900
I, DAVID WILLOX, of 48, Burgher Street, Parkhead, in the City of Glasgow,
Manufacturing Chemist, do hereby declare the nature of this invention to be as
follows:-
This invention relates to centrifugal machines and more especially such as
are used for drying clothes or fabrics, and it has for its object to provide means
whereby risk of accident occasioned by throwing in articles to be dried whilst
the centrifugal basket is in motion or by contact with it may be obviated.
To that end I provide the casing of the machine with a hinged or pivoted lid
or cover which is automatically closed by the act of starting the rotation of the
basket and opened on stopping the machine.
The lid or cover is preferably pivoted on a rock shaft having at its end a
crank arm which is connected by a link to the hand lever used for starting and
stopping the machine so that on throwing over the hand lever to put the basket
in motion the lid or cover is swung down on to the top of the casing.
In lieu of so pivoting the lid or cover it may be suspended over the machine
casing and the suspension rope or chain so connected to the hand lever that it
is caused to descend on to the casing when the lever is moved to start the rotary
motion of the basket.
Th
1st day of Dosambas 1900
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents,
62, Saint Vincent Street, Glasgow,
Agent for the Applicant.
Improvements in or relating to Centrifugal Machines.
I, DAVID WILLOX, of 48, Burgher Street, Parkhead, in the City of Glasgow,
Manufacturing Chemist, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to centrifugal machines and more especially to such as
are used for drying clothes or fabrics; and it has for its object to provide means
whereby risk of accident occasioned by throwing in articles to be dried while
the centrifugal basket is in motion or by contact with it may be obviated.
The accompanying drawings illustrate an underdriven centrifugal machine.
[Price 8d.]

page_text: showing my invention applied thereto, Figure 1 being an elevation with the
cover of the machine closed, Fig. 2 a plan of the same, and Fig. 3 an elevation
showing the cover open. Fig. is a vertical section, and Fig. 5 a horizontal
section, of the improved centrifugal machine, showing the rotating parts of the
machine and the connections between the cover and the operating-lever, the
latter being in dotted lines.
In carrying out the invention I provide the casing A of the machine with a
hinged or pivoted lid or cover B, which is automatically closed by the act of
starting the rotation of the basket and opened on stopping the machine. The
lid or cover B is preferably pivoted on a rock shaft C, having at its end a tubular
crank-arm 1, which is connected by a connecting-link E to the hand-lever F,
used for starting and stopping the machine, so that on throwing over the hand
lever F to the position shown in Figs. 1, 2, 4 and 5 to put the basket in motion
the lid or cover B is swung down on to the top of the casing A, or in throwing
over the lever F to the position shown in Fig. 3 the machine-brake is applied
and the safety-cover opened.
In centrifugal machines of this class the motor employed for driving usually
consists, as shown at Fig. 4, of a Pelton wheel G, acted on by a jet of water
from a nozzle H, the water being controlled by a valve or cock secured on the
shaft, to which the hand-lever F is keyed, the valve or cock being turned in
its casing to open or close the passage to the nozzle H. The inner end of the
shaft F has a crank F2 secured to it, and a pin on said crank engages a forked
portion of a weighted link I. The link I is also connected to a pin .J¹ on the
brake-band J, so that the action of throwing over the hand-lever F beside closing
the water-jet tightens the band J around the brake-wheel K and brings the
machine to a stand still. Although the afore-described mechanism for starting
and stopping the machine has been shown on the drawings for the purpose of
illustrating the invention, it is obvious that the invention is capable of applica-
tion to machines of this class driven in a different manner, provided connections
such as shown be made between the hand-lever F and the cover B.
:
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. In a rotary or centrifugal machine having a stationary casing the combina-
tion with the stationary casing, of a cover adapted to close the orifice therein,
and so connected to the usual starting-lever that it closes when said lever is
operated to start the machine.
2. In a rotary or centrifugal machine, the combination with the stationary
casing, of a cover adapted to close the opening in said casing, a rock-shaft carry-
ing said cover, a crank-arm on said rock-shaft and a link connecting said crank
and the usual starting-lever, substantially as described.
Dated this 1st day of September 1900.
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents,
62, Saint Vincent Street, Glasgow,
Agent for the Applicant.