Improvements in Mechanisms Requiring a Quick Return Motion, such as Butter Printers and Weighers and the like Machinery.
Year: 1895

page_text: Date of Application, 26th Nov., 1895
Complete Specification Left, 2 th Sept., 1896-Accepted, 14th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in Mechanisms Requiring a Quick Return Motion,
such as Butter Printers and Weighers and the like Machinery.
I, ERNEST SYDNEY BURMAN of No. 487 Collins Street, Melbourne, in the
Colony of Victoria, Mechanical Engineer, do hereby declare the nature of this
invention to be as follows:-
or
This invention has been devised to provide improvements in machinery in which
a quick return motion is required, and has special reference to machines such as
butter workers, where a slow forward motion of a certain member of the mechanism
fulfils the chief function of a machine aud where such member has to be brought
back to its starting point prior to its next operation. For instance in a butter
printing and weighing machine a rod or pusher ejects pushes forward a lengthy
core of butter which has been previously passed through a graded orifice. This
ejection must as aforesaid be done slowly, and some considerable time will therefore
elapse before the head of the ejecting rod or pusher reaches its destination. It
naturally follows that the same mechanism when reversed will cause considerable
time to be lost before the pusher has been again returned to the position ready for
a fresh operation. It is to save this loss of time occurring in machines of this
class that my invention has been designed.
In order that my invention may be the more easily understood reference may be
made to the accompanying drawings in which-
Figure 1 is a front elevation and
Figure 2 a side elevation of apparatus constituting my improvements.
Figures 3 and 4 are front elevatious of Figures 1 and 2 but with certain parts
removed for clearness sake, whilst
Figure 5 is a vertical section on line -x of Figure 1.
In these drawings "A" is a shrouded internally toothed wheel gearing either
in "C" as in Figure 4 or thrown out of gear as in Figure 3. This wheel or
disc "A" is part of or intimately connected with a pinion wheel "B" both of
which wheels turn upon a stud "J," (see Figs. 3, 4 and 5) secured to and in the
handle bar "F" (see Fig. 2) and is prevented from leaving "J" by the washer
plate "J" and screw-pin stopper "J"
"C" is a toothed pinion keyed to the shaft "E" (see Figs. 2 and 5) which
latter gives motion to any machine to which my quick-return motion mechanism is
attached.
"D" (Figs. 3, 2 and 5) is a stud, cast upon or solidly fixed into the back
plate "I," and forms a pin upon which the handle bar "F" turns. The bar "F"
is prevented from leaving "D" by the screw-pin stopper "D¹."
"L" is the handle fastened to the circular plate or wheel "A" for giving
motion to "A" and "B," in Fig. 3 driving the gear forward, in Figure 4 driving
the gear backward with quick return motion and in Figure 1 driving out of gear
and taking the place of a loose pulley.
Hand driving gear is shewn on drawings, but I would have it understood that
the circular plate or wheel "A" and with it the pinion "B" may be driven by
belts, ropes, friction gear or other means; provision being of course made in such
belt rope or other gear to allow for the radial or differential positions of the
plate "A" owing to its centre of revolution "J" being altered in position by the

page_text: movement of the handle bar "F." This alteration for differential position may be
done through any ordinary means, such for instance as jockey pulleys conveniently
arranged for the purpose.
Although toothed gearing is herein before referred to in connection with the
parts "A" "B" and "C" I would have it understood that frictional gear may be
used in lieu thereof.
It will be seen by a glance at the drawings that the return speed of "C
and its shaft "E" can be regulated by the proportion of the diameters of "A'
and "C."
"
"
Figure 3 shews the handle bar "F" in position on a locking quadrant "G"
and in which position "B" will give motion to "C" and its shaft "E," the.
revolution of the said shaft "E" will cause the forward motion to be communicated
to the butter working machine so that the ejector or pusher of the latter (or other
machinery requiring a slow forward movement) will move slowly forward at the
required speed.
Figure 4 shews the handle bar "F" in its altered position on the locking
quadrant "G" and arranged to give motion from the large wheel "A" to the
said pinion "C" and its shaft "E" at_a_much more accelerated speed than
resulted from the engagement between "B" and "C" and also in an opposite
direction thereto; that is to say "C" and its shaft "E" will revolve at a much
greater speed in the opposite or return motion consequently causing the pusher of
the butter worker attached to "E" to return with much quicker speed backwards
than the speed with which it proceeded forward. In some cases I may specially
fortify the pinion "C" and its shaft "E" by providing a collar upon the
plate in which a portion of the face of "C" could run and which said collar
would assist "C" in receiving the impact or blow of "A or "B" when the
latter are suddenly placed in engagement with "C" and thus prevent any straining
of the shaft "E."
"
"
Figure 1 illustrates another altered position of the handle bar "F
upon the
locking quadrant "G" and from which it will be seen that both "A" and "B"
are thrown out of engagement with "C." This is the "out of gear" position and
no motion is imparted to the machine; whilst "A" and "B" will run idly upon
the pin or stud "J." The lever "F" is provided at its head with any approved
locking apparatus such as "K," preferably consisting of a block or plug set upon
a rod which is encircled by a spring, said block or plug being arranged to drop
into perforations or key stops as "G" and preferably constructed after the manner
of the ordinary locking lever and quadrant in general use in machinery.
The plate "" is preferably made of cast iron of staunch proportions and may
be provided with a sole plate at its bottom "I," or the said plate "I" may be an
integral portion of the butter worker or other machine to which my improvements
are fitted.
I would have it understood that I do not confine myself to any particular
material for constructing my apparatus, nor to any arbitrary diameters or sizes
of the parts herein before referred to as I may vary same to suit different
requirements so long as such parts are so proportioned that the radial alteration
of a lever as "in manner described will cause a toothed wheel as "A" or
pinion as "B" to engage with a pinion as "C" for the forward or backward
motions respectively.
"F
e.
Dated this 26th day of November 1895

page_text: Improvements in Mechanisms Requiring a Quick Return Motion,
such as Butter Printers and Weighers and the like Machinery.
1, ERNEST SYDNEY BURMAN 487 Collins Street, Melbourne Australia 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 been devised to provide improvements in machinery in which
a quick return motion is required and has special reference to machines such as
butter workers, where a slow forward motion of a certain member of the mechanism
fulfils the chief function of a machine and where such member has to be brought
back to its starting-point prior to its next operation.
For instance in a butter printing and weighing machine a rod or pusher ejects or
pushes forward a lengthy core of butter which has been previously passed through
a graded orifice. This ejection must as aforesaid be done slowly, and some
considerable time will therefore elapse before the head of the ejecting rod or
pusher reaches its destination. It naturally follows that the same mechanism
when reversed will cause considerable time to be lost before the pusher has been
again returned to the position for a fresh operation. It is to save this loss of
time occuring in machines of this class that my invention has been designed.
In order that my invention may be the more easily understood reference may be
made to the accompanying drawing in which:-
Figure 1. is a front elevation and
Figure 2. a side elevation of apparatus constituting my improvements.
Figures 3 and 4. are front elevations of Figures 1 and 2. but with certain parts
removed for clearness sake, whilst
Figure 5 is a vertical section on line x-x of Figure 1.
In these drawings A is a shrouded internally toothed wheel gearing either in
C as in Figure 4 or thrown out of gear as in Figure 3. This wheel or disc A is
part of or intimately connected with a pinion wheel B both of which wheels turn
upon a stud J by the washer plate J¹ and screw-pin stopper J*.
C is a toothed pinion keyed to the shaft E (see Figs. 2 and 5) which latter
gives motion to any machine to which my quick-return motion mechanism is
attached.
D (Figs. 3, 2 and 5) is a stud, cast upon or solidly fixed into the back plate I,
and forms a pin upon which the handle bar F turns. The bar F is prevented
from leaving D by the screw-pin stopper D'. L is the handle fastened to the
circular plate or wheel A for giving motion to A and B in Fig. 3 driving the gear
forward, in Figure 4 driving the gear backward with quick return motion and in
Figure 1. driving out of gear and taking the place of a loose pulley.
Hand driving gear in shewn on drawings, but I would have it understood that
the circular plate or wheel A and with it the pinion B may be driven by belts
ropes friction gear or other means, provision being of course made in such belt
rope or other gear to allow for the radical or differential positions of the plate A
owing to its centre of revolution J being altered in position by the movement of
the handle bar F. This alteration for differential position may be done through
any ordinary means, such for instance as jockey pulleys conveniently arranged for
the purpose.
Although toothed gearing hereinbefore referred to in connection with the
parts A, B and C 1 would have it understood that frictional gear may be used in
lieu thereof.

page_text: It will be seen by a glance at the drawings the the return speed of C and its
shaft E can be regulated by the proportion of the diameters of A and C.
Figure 3 shews the handle bar F in position on a locking quadrant G and in
which position B will give motion to C and its shaft E the revolution of the said
shaft E will cause the forward motion to be communicated to the butter working
machine so that the ejector or pusher of the latter (or other machinery requiring
a slow forward movement) will move slowly forward at the required speed.
Figure 4 shews the handle bar F in it altered position on the locking quadrant G
and arranged to give motion from the large wheel A to the said pinion G and its
shaft E at a much more accelerated speed than resulted from the engagement
between B and C and also in a opposite direction thereto; that is to say C and its
shaft E will revolve at a much greater speed in the opposite or return motion
consequently causing the pusher of the butter worker attached to E to return
with much quicker speed backwards than the speed with which it proceeded
forward. In some cases I may specially fortfify the pinion C and its shaft E by
providing a collar, upon the plate 1 in which a portion of the face of C could run
and which said collar would assist, C in receiving the inpact or blow of A or B
when the latter are suddenly placed in engagement with C and thus prevent any
straining of the shaft E.
Figure 1 illustrates anothe altered position of the handle bar F upon the locking
quadrant G and from which it will be seen that both A and B are thrown out of
engagement with C. This is the "out of gear" position and no motion is imparted
to the machine whilst A and B will run idly the pin or stud J. The lever F is
provided at its head with an approved locking apparatus such as K, preferably
consisting of a block or plug set upon a rod which is encircled by a spring, said
block or plug being arranged to drop into perforations or key stops as G¹ and
preferably constructed after the manner of the ordinary locking lever and
quadrant in general use in machinery. The plate I is preferably made of cast
iron of staunch proportions and may be provided with a sole plate at its bottom I',
or the said plate I may be an integral proportion of the butter worker or other
machine to which my improvement are fitted.
I would have it understood that I do not confine myself to any particular
material for constructing my apparatus, nor to any arbitary diameters or sizes of
the parts hereinbefore referred to as I may vary same to suit different requirements
so long as such parts are so proportioned that the radical alteration of a fever as F
in manner described will cause a toothed wheel as A or pinion as B to engage with
a pinion as C for the forward or backward motions rescertively.
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:
1. The combined construction and arrangement of the various parts as herein
shown and described.
.1.nz.' נ.י.ת
1000
E. EATON,
Agent for Applicant.