Year: 1898

page_text: I, DAVID KEIL TULLIS, of the Firm of D. & J. Tullis, Engineers, Kilbowie, in the
County of Dunbarton, North Britain, do hereby declare the nature of this invention
to be as follows:-
This invention has for its object not only to simplify the driving gear of washing
machines, but to construct it in such a manner that it will take up much less room
than the gearing presently in use.
In carrying out my invention, I have three pulleys arranged in the form of a tri-
angle and driven by same belt; the centres of the pulleys are in the same plane, and
revolve in the same direction. I also provide an automatic clutch arrangement to
start and stop the driven pulleys, which action reverses the machine. I also have a
small wheel for tightening or taking up the belt, which may be used to work the
clutch for reversing the gearing.
Dated this 17th dow of Fahm 1000
I, DAVID KIEL TULLIS, of the Firm of D. & J. Tullis, Engineers, Kilbowie, in the
County of Dumbarton, North Britain, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed to be particularly described.
and ascertained in and by the following statement :-
My invention has for its object to simplify the driving gear of machines for wash-
ing linen or other textile fabrics or other machines having a reciprocating motion,
and to construct it in such a manner that it will take up much less room than the
gearing presently in use, as well as reduce the wear and tear of the moving parts
and the belting.
In order that my invention may be properly understood and readily carried into
effect I have hereunto appended two sheets of drawings of which corresponding parts
are marked with the same letters of reference.
Figure 1 is a front view of a washing machine to which my improvements are
attached, and
Figure 2 is an end view of the same.
Figure 3 is a part view corresponding to Fig. 2 illustrating the enging and dis-
enging gear all hereafter more fully referred to.

page_text: In carrying out my invention I employ two belt pulleys A and B mounted on
sleeves a and b revolving on shafts A¹ and B₁ fixed and projecting from the end
frame of the outer casing of the machine. The pulleys A and B revolve in the same
plane and a single belt D passes from a pulley Calso in the same plane on the line
shafting round the pulleys A and B and thus causes them to revolve in the same
direction, the machine being so placed with regard to the line shafting that the
centres of the pulleys A and B and the centre of the line shaft form a triangle.
The loose sleeves a and b on which the belt pulleys A and B revolve project at
each end beyond the boss of the pulleys and have on their ends next the outer casing
of the machine toothed pinions N and N¹ and on their other ends suitable friction
clutches P and P¹, which when in gear engage with the inside periphery of the belt
pulleys A and B, thus transmitting motion direct from the belt pulleys A and B to
the pinions N and N¹. The pinions N and N¹ engage with the spur wheel O on the
axis of the revolving inner cage of the washer, the one pinion gearing direct and the
other through an idle pinion Q, thereby causing the inner cage of the washing
machine to revolve in opposite directions as the friction clutches are alternately
thrown into gear. The mode of throwing the friction clutches P and P¹ in and out
of gear is as follows:-The outer portion of either sleeve a and b is compelled to
move backward and forward alternately by mechanism already described. In the
backward direction either sleeve a and b is caused to move under the depending
arm S, S expanding or forcing them out, which operation brings the flange of the
clutch P or P¹ into frictional contact with the inside periphery of the pulley A or B
as already briefly referred to, thus communicating motion to the inner portions of
the sleeve a and b and causing the pinions N and N¹ mounted thereon to revolve
as seen more particularly in Figure 3.
To throw the friction clutches alternately in and out of gear I preferably employ
a pulley revolving on a shaft E projecting from the outer casing of the machine.
The pulley C also revolves in the same plane as the pulleys A and B and is so
placed between these pulleys that the belt in passing between them makes frictional
contact with the pulley C and thus causes it to rotate. The pulley C engages with a
clutch M controlled by a hand lever L. The clutch M throws the pulley C in gear
with a worm E which engages with a worm wheel F mounted on a transverse shaft G
supported in suitable brackets R and R¹ attached to the frame of the machine.
The transverse shaft G has on its ends discs H and I fitted with crank pins h and i
which engage with can shaped slots in the lower end of the levers J and K. The
upper end of the levers J and K are forked and are connected in the usual way with
the friction clutches P and P¹. The cam slots in the ends of the levers J and K are
semi circular on the one side and flat on the other. The crank pins h and i on
the discs H and I can thus move free of the levers J and K through half the
revolution of the transverse shaft G but cause the levers J and K to move during the
other half of the revolution. The crank pins h and i on the discs H and I being
opposite to one another the levers J and K are moved alternately and thus throw
the friction clutches P and P¹ alternately in and out of gear and cause the inner
cage of the washer to revolve first in one direction and then in the other. By
means of the hand lever L the clutch M can be thrown out of gear and the machine
can be stopped by releasing the clutch M when the crank pins h and i are vertical
one above the other.
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 washing and other machines the arrangement, of driving gear constructed
substantially as and for the purposes hereinbefore described and illustrated in the
accompanying sheets of drawings.
2. In machines for washing linen or other textile fabrics or other machines
having a reciprocating rotary motion together with friction clutches engaging with

page_text: pulleys on separate shafts, the employment of an automatic gearing for alternately
throwing the friction clutches in and out of gear, substantially as described and
illustrated on the accompanying sheets of drawings.
Dated this 13th day of December 1898.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Patent Agents.