Improvements in Clutches, applicable to Outting and Stamping Machines or Presses and the like.
Year: 1893

page_text: Date of Application, 16th Dec., 1893
Complete Specification Left, 17th Sept., 1894-Accepted, 20th Oct., 1894
PROVISIONAL DE DUIFICATION
Improvements in Clutches, applicable to Outting and Stamping
Machines or Presses and the like.
I, ROBERT BEST MILLS of No. 3 Upper Street Kettering in the County of
Northampton Mechanic, do hereby declare the nature of this invention to be as
follows:
This invention relates to improvements in clutches applicable to cutting and
stamping machines or presses and the like in order that a stop can be effected in
one revolution of the shaft of the machine at the will of the operator.
To carry my invention into effect I arrange upon the shaft of the machine a
disc carrying an eccentric on one side and a series of cams on the other, the
inner face of this cam disc being slotted to receive a spring placed therein, and
in a corresponding slot in a movable disc fitting closely on the series of cams,
in the outer face of the latter disc is cut grooves of such a form that will allow
of the free movement on pivots of three (or any other number to correspond
with the cams) spring pressed links each carrying a roller at its free end, which
impinge against the sides of the said cams, the springs pressing against the links,
and against the sides of the grooves prevent the rollers from touching against
the sides of a recessed cap or gear wheel (fitting thereon) except when in gear
and avoids rattling of the links. The said gear wheel being loose on the shaft
and is driven by a pinion in any suitable position. It is recessed on its under
side to contain the series of cams, links and rollers.
A spring inserted in grooves in the movable and fast discs presses the rollers
into contact with an equal number of cams, and gear wheel or cap.
To draw back the rollers from contact with the cams, and gear wheel or cap, and
So stop the eccentric (which is enclosed by a strap connected to plunger) but still
allowing the gear wheel to continue in motion, a pivoted lever fixed in line with
the driving shaft is employed having a roller at the contact end and a spring or
weight at the other to force the roller into U shaped slots cut in the periphery of
both discs. On one side of the U shaped slots the periphery is filed down to
facilitate the passing of the roller.
To draw back the rollers from contact with the gear wheel or cap, the roller on
end of pivoted lever is pulled back or away from the U shaped slots of both discs
by a rod connected thereto and to the treadle, or by other suitable arrangements.
The spring held by and between both discs will then cause the rollers to grip
between the cams and gear wheel, the eccentric will make one revolution, the
roller will fall again into the U shaped slots, when the machine will be stopped.
Dated this 14th day of December 1893.
W. B. MAXFIELD,
Applicant's Agent.

page_text: Improvements in Clutches, applicable to Cutting and Stamping
Machines or Presses and the like.
1, ROBERT BEST MILLS of No. 3 Upper Street Kettering in the County of
Northampton Mechanic, 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 to improvements in clutches applicable to cutting and
stamping machines or presses and the like in order that a stop can be effected in
one revolution of the shaft of the machine at the will of the operator.
In order that my invention will be well understood I have annexed a sheet of
drawings in which Figure 1 is a front elevation and Figure 2 a side elevation of the
clutch arranged according to this invention.
To carry my invention into effect I arrange upon the shaft A of the machine
a disc B carrying an eccentric b, on one side and a series of cams C on the
other, the inner face of this cam disc being slotted b', to receive the spring 6,
(dotted line Figure 1) placed therein, and in a corresponding slot in the movable
disc D fitting closely on the series of cams C, in the outer face of the disc D
is cut grooves d, of such a form that will allow of the free movement (on the
pivots d) of three (or any other number to correspond with the cams C) spring
pressed links E each carrying a roller e at its free end, which impinge against
the sides of the said cams C, the springs e' press against the links E and against
the sides of the grooves d prevent the rollers from touching against the sides
of the cap or gear wheel F (fitting thereon) except when in gear and avoids
rattling of the links.
The said gear wheel F is loose on its shaft and is driven by a pinion in any
suitable position. The gear wheel is recessed on its under side f, to hold or
contain the series of cams, links and rollers. The spring 6 within the discs B, D
presses the rollers into contact with the cams and gear wheel or cap.
To draw back the rollers from contact with the cams and gear wheel or cap,
and so stop the eccentric b (which is enclosed by a strap 63 connected to plunger)
but still allows the gear wheel F to continue in motion, a pivoted lever G is
fixed in line with the driving shaft and has a roller H at the contact end,
and a spring I or weight at the other to force the roller into the U shaped
slots 9, 9', cut in the periphery of the discs B, D. On one side of the U shaped
slots the periphery is filed down h, h', to facilitate the passing of the roller. By
means of the rod J, connected to the lever G, the roller H is pulled back to break
contact and release the discs B, D. The spring 6 being also released the rollers e
grip between the cams and recess of the gear wheel, the eccentric will make one
revolution, the roller H will again enter the U shaped slots and the machine
will stop.
The rod J may be attached to foot treadle, or other suitable arrangement in
connection with the machine for the purpose of stopping the machine or press at
the will of the operator.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In a clutch applicable to cutting and stamping machines or presses and the
like the combination of one or more rollers e acting upon an equal number of cams C,
to press the said rollers against the inside of the gear-wheel or cap F for the

page_text: 2. A disc such as B provided with cams C and eccentric b, a recess b¹ to receive
spring b³.
3. A disc such as D provided (in combination with disc B with recess to cover
the spring 63,) and grooves d, pivots d', links E carrying rollers e, recesses to
receive roller H. upon the end of lever G, provided with spring I or weight to
force the roller H into the recesses g, g' to release rollers e from contact with gear
wheel or cap, and stop the movement of eccentric b. Also operating rod J in
connection with the lever G. Substantially in the manner as described.
4. Improvements in clutches applicable to cutting and stamping machines or
presses and the like constructed and arranged substantially as described and
illustrated in the accompanying drawings.
Dated this 12th day of September 1894.
WILLIAM BESTWICK MAXFIELD,
Registered Patent Agent,
19, Bowling Green Street, Leicester, Applicant's Agent.