A New or Improved Attachment or Means to Make and Break Connection between the Clutch and its Operating Lever in Clutch Operating Mechanism.
Year: 1895

page_text: Date of Application, 5th Jan., 1895
Complete Specification Left, 26th Sept., 1895-Accepted, 2nd Nov., 1895
PROVISIONAL SPECIFICATION.
A New or Improved Attachment or Means to Make and Break
Connection between the Clutch and its Operating Lever in Clutch
Operating Mechanism.
I, EDWARD ERNEST BOORNE of "Cotswold" Streatham Hill, London, S.W.
Tinworks Manager, do hereby declare the nature of this invention to be as
follows:-
This invention relates generally to clutch operating mechanism and more
particularly to an attachment or means to be introduced between the clutch and
the foot or other lever or means by which the clutch is intermittently thrown in
or out of gear to operate any machine or machinery or other apparatus or
appliance the object of the invention being to provide a safety arrangement to
prevent the clutch (and consequently the machine or machinery operated thereby)
from being accidentally thrown into gear; this accidental operation of the
machinery often causing serious injury to the operative an especial object of my
present invention being to render impossible-or greatly reduce the chance of-
such accidents.
And in order to explain my said invention I will proceed to describe same as
applied to a clutch operating mechanism actuated by a treadle such as is ordinarily
used on a tin box stamping machine but I wish it to be clearly understood that my
invention can be used on any machine machinery or apparatus whatsoever for
which same is applicable.
Taking the case of a tin-stamping machine as an example-it is well known a
foot lever or treadle is used which by means of a vertical rod or connection either
directly or indirectly operates the clutch so that when the machine is to be set in
motion the operative places his (or her) fcot on the said treadle and thereby throws
the clutch into gear and it remains in gear according to the clutch employed either
for one or more or less revolutions or as long as the treadle is held down as the
case may be.
Now my present invention consists in introducing in said vertical rod or con-
nection (between the treadle and the clutch) a make and break attachment as
follows:-
-
The vertical rod or connection is formed in two parts the lower part having
hinged or pivotted thereto at its upper end a latch or hook-shaped device which
has a slot or opening formed therein with suitably shaped sides to said slot to act
as a cam-way or cam-surfaces against which operates a fixed pin or stud (advan-
tageously having a roller thereon) having a washer or other suitable means to keep
the cam-latch in position thereon.
The operation of drawing down the said cam-latch against the said fixed stud is
to force the former out of gear or contact with another latch or flat hook fixed to
or formed on the lower end of the upper part of said connection-a spring (advan-
tageously detachable) being arranged to pull the cam-latch back opposite to the
direction in which it is forced by said cam action.
The heads of one or both of these latches respectively is or are rounded or
formed in such wise that when forced end wise against one another the hinged one
will be forced sideways out of the path of the other until the two hook parts have

page_text: over-lapped one another whereupon (by the action of the aforesaid spring) the
two hooks engage and make a firm connection.
Or the parts (ie. the latches) may be arranged vice versa if desired or again
instead of one of the latches having the said cam-way therein this cam-way may
be formed in the metal or other plate (in or on which the various parts of my
attachment are carried or mounted) or in or on any other suitable plate or device
and the hinged latch have a pin or stud or roller fixed or carried thereon and
operating in said cam-way to throw back the latch when the connecting rod is
drawn down (or forced up as the case may be).
The operation is as follows:-
The treadle being up the two said latches or hooks (introduced in the said
connecting rod) overlap and are thus normally held together by the aforesaid
spring.
When the operative forces down the treadle the said lower part of the connection
thus draws down (or forces up-as the case may be) the upper part of said con-
nection and at same time as soon as the cam-way begins to operate against said
stud or roller (or vice versa) thereby the lower latch is forced out of gear or contact
with the upper latch and consequently the clutch operating connection is broken
and the clutch is free, the upper part of the connection being pulled or forced
against the action of another spring by which it is promptly returned to its
normal position a stop or other suitable means being provided to prevent it being
drawn too far by said spring.
Thereupon the hinged latch is by its horizontal spring pulled again into a vertical
position and the head thereof lies under the head of the upper latch until the
operative releases the treadle whereupon it is forced past the other until it overlaps
and hooks together again as before explained.
By taking or throwing off the said horizontal spring on said hinged latch and
allowing the latter to fall out of gear with the other latch-it then becomes impossible
to start the machine by the treadle or usual starting device as long as these two
latches are out of contact.
It will be obvious that my invention can be used horizontally or in any other
position besides vertically.
Dated this 5th d...
T
1005
TONGUE & BIRKBECK,
Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.
A New or Improved Attachment or Means to Make and Break
Connection between the Clutch and its Operating Lever in Clutch
Operating Mechanism.
I, EDWARD ERNEST BOORNE of "Cotswold" Streatham Hill, London, S.W.
Manufacturer, 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 relates generally to clutch operating mechanism and more
particularly to an attachment or means to be introduced between the clutch and
the treadle or other starting lever or means by which the clutch is intermittently
thrown in or out of gear to operate any machine or machinery or other apparatus
or appliance the object of the invention being to provide a safety arrangement to
prevent the clutch (and consequently the machine or machinery operated thereby)
from being accidentally thrown into gear; this accidental operation of the
machinery often causing serious injury to the operative an especial object of my

page_text: present invention being to render impossible-or greatly reduce the chance of—
such accidents.
And in order to explain my said invention I will proceed to describe same as
applied to a clutch operating mechanism actuated by a treadle such as is ordinarily
used on a tin box stamping machine but I wish it to be clearly understood that my
invention can be used on any machine machinery or apparatus whatsoever for which
same is applicable.
Taking the case of a tin-stamping machine as an example-it is well known a
foot lever or treadle is used which by means of a vertical rod or connection either
directly or indirectly operates the clutch so that when the machine is to be set in
motion the operative places his (or her) foot on the said treadle and thereby throws
the clutch into gear and it remains in gear according to the clutch employed either
for one or more or less revolutions or as long as the treadle is held down as the case
may be.
Now my present invention consists in introducing in said vertical rod or
connection (between the treadle and the clutch) a make and break attachment as
follows:-
cam-
The vertical rod or connection is formed in two parts the lower part having
binged or pivoted or flexibly joined thereto at its upper end a latch or hook-shaped
device (which for the sake of brevity I shall hereinafter refer to as the "
latch" which has a slot or opening formed therein with suitably shaped sides to
said slot to act as a cam-way or cam-surface against which operates (or which
operates against) a fixed pin or stud advantageously having a roller thereon (or the
latter may operate against the exterior of said cam-latch) having a washer or other
suitable means to keep the cam-latch in position.
The operation of drawing down the said cam-latch against the said fixed stud has
the effect of forcing the former out of gear or contact with another latch or flat
hook fixed to or formed on the lower end of the upper part of said connection-
a spring (advantageously detachable) being arranged to pull the cam-latch back
opposite to the direction in which it is forced by this cam action.
The heads of one or both of these latches respectively is or are rounded or formed
in suchwise that when forced end ways against one another the hinged one will be
forced out of the path of the other until the two hook parts have over-lapped one
another whereupon (by the action of the aforesaid spring) the two hooks or latches
engage and make a firm connection.
Or the parts (ie. the latches) may be arranged vice versa if desired or again
instead of one of the latches having the said cam-way therein this cam-way may be
formed in the metal or other plate (in or on which the various parts of my
attachment are carried or mounted) or in or on any other suitable plate or device
and the hinged latch have a pin or stud or roller fixed or carried thereon and
operating in said cam-way to throw back the latch when the connecting rod is drawn
down (or may be arranged to similarly act when forced up as the case may be).
And in order that my invention may be easily understood and readily carried
into practice I will proceed to further describe same with reference to the drawings
5 hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a view in elevation of such nake and break attachment according to my
present invention-in gear.
Fig. 2 is a plan of Fig. 1-looking in the direction of the arrow y.
Fig. 3 is an edge view of Fig. 1-looking in the direction of the arrow x.
Fig. 4 is same view as Fig. 1-showing the "break" i.e. the parts thrown out of
connection.
Similar letters of reference indicate corresponding parts throughout.
AA is vertical rod or connection between the treadle and the clutch-this
5 connection being formed in two parts A' and A² respectively mounted and
and 7 to the frame of

page_text: the machine or other suitable support-the lower part A¹ being suitably connected
to the treadle or other starting device and the upper part A2 suitably connected to
the clutch mechanism.
B is the cam latch pivoted or hinged or flexibly joined at B* to the upper end of
the said lower part A¹.
This cam latch B has a slot or opening B₁ formed therein.
C is fixed pin or stud carrying an anti-friction roller C₁ thereon which acts against
the inside wall B' of said cam-latch B as hereinafter explained.
D is a washer or head on the stud C (or it may be any other suitable device) to
keep said cam latch B in position on said stud C.
Or if desired the said fixed stud or pin C may be arranged to act on the outside
wall of the cam-latch B in which latter case the aforesaid slot or opening B' therein
could be dispensed with.
E is a spring attached at one end to the support Z and at the other to the cam
latch to thus pull the latch always in the direction of the arrow .
A small anti-friction roller B may advantageously be mounted in the nose
or hooked end B³ of the cam-latch to facilitate both the disengagement and
re-engagement of the said latch with the nose or hooked end A³ on the lower end
of the upper part A².
;
F is a spring mounted on-and F¹ a collar fixed to-the upper part A² between
which collar and the bearing Y said spring is compressed when the upper part A³
is drawn down by the cam latch B and when released by the latter is instantly
returned to its original position by said spring F.
The lower part A' is likewise normally kept pressed in the direction of the
arrow y by means of a suitable spring (not shown) or counterweight or other
suitable means.
The operation is as follows:-
The treadle being up the two said latches or hooks A³ and 133 overlap and are
thus normally held together by the aforesaid spring E see Fig. 1.
When the operative forces down the treadle the said lower part A¹ of the
connection A with its cam latch B thus draws down the upper part A² of said
connection and thereby causes or allows the clutch to engage or act; while, when
the camway B operates against said stud C or roller C¹ (or vice versa) thereby the
nose B³ of the lower latch B is forced out of gear or contact with the upper latch A³
and consequently the connection A between the starting device and the clutch
mechanisin is broken and the clutch is therefore disengaged immediately the
latch A is released from the cam-latch B and the said latch A³ is promptly
returned to its normal position by the said spring F-a stop or other suitable
means (not shown) being provided to prevent its being drawn too far by said
spring.
When the operative releases the treadle or equivalent thereupon the cam latch
rises and is by its horizontal spring E pulled towards the vertical position and the
head thereof B³ strikes under the head A3 of the upper latch whereupon it is
forced past the latter until it overlaps and these two latches hook together again
as before explained ready for the next operation and so on.
By taking or throwing off the said horizontal spring E on said hinged latch B
and allowing the latter to fall out of gear with the other latch--it then becomes
impossible to start the machine by the treadle or usual starting device as long as
these two latches are out of contact.
It will be obvious that my invention can if desired be used horizontally or in
any other suitable position besides vertically.
"
It will thus be seen that I introduce means to utilise the movement itself—
imparted by manual power to the connection between the clutch mechanism and
the starting lever-to automatically cause the "break in said connection that is
I interpose means which (when the operative moves the starting lever) break.
connection entirely independently of any rotating part of the stamping or other
machine.

page_text: Having now particularly described and ascertained the nature of my said inven-
ion and in what manner the same is to be performed I declare that what I
claim is :-
1. In clutch operating mechanism for the purposes described--the combination
with a connecting rod or connection formed in two parts between the clutch
mechanism and its starting lever such as a treadle of a hook or latch hinged or
pivoted or flexibly joined to one said part and adapted to interlock with a hook or
latch on the other said part in suchwise that movement imparted by the said
starting lever to one such latch will thereby be imparted to the other in one
direction and means interposed in the path of travel of said pivoted latch whereby
said movement of the latch will itself cause the said two latches to become
disengaged and thereby automatically "break" connection independently of the
machinery thrown into operation by said clutch.
2. In clutch operating mechanism for the purposes described-the combination
with a connecting rod or connection formed in two parts between the clutch
mechanism and its starting lever such as a treadle of a hook or latch hinged or
pivoted or flexibly joined to one said part and adapted to interlock with a hook or
latch on the other said part in suchwise that movement imparted by the said
starting lever to one such latch will thereby be imparted to the other in one
direction and means interposed in the path of travel of said pivoted latch whereby
said movement will itself cause the said two latches to become disengaged and
thereby automatically "break" connection substantially in the manner and for
the purposes herein before described.
3. In clutch operating mechanism, a rod or connection such as A (between the
starting lever and the clutch mechanism) in two parts such as A' and A2 a hook
or latch such as A³ on the latter a hinged or pivoted or flexibly joined latch such
as B adapted at B³ when forced endways against said latch A³ to engage and
interlock therewith and a spring such as E to keep same in engagement in
combination and acting in conjunction with means interposed in the path of travel
of said latch B in such wise that by the movement of said latch by the operative
it is forced clear of the latch A3 and thereby releases the latter substantially in
the manner and for the purposes hereinbefore set forth.
4. In clutch operating mechanism-a rod or connection such as A (between the
starting lever and the clutch mechanism) in two parts such as A1 and A2 a latch
or hook such as A³ on the latter in combination and acting in conjunction with a
hinged or pivoted or flexibly joined latch such as B adapted at B3 when forced
endways against said latch A³ to engage and interlock therewith and a pin or stud
such as C (fixed to the support Z) interposed in the path of travel of a cam surface
on the latch B whereby the latter when moved by the operative is forced off the
latch A³ to thus "break" connection and a spring such as E to press the two
latches together on the return of said latch B into engagement with the latch A³
substantially as and for the purposes herein before described and illustrated in the
drawings hereunto annexed.
5. In clutch operating mechanism the improved means for making and breaking
connection between the clutch mechanism and its starting lever arranged combined
and acting substantially in the manner and for the purposes hereinbefore described
and illustrated in the drawings hereunto annexed.
TONGUE
BIRKBECK,
Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.