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Патент USA US3091997

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June 4, 1963
I
L. s. WALLIS
_
3,091,987
GUILLOTINES
Filed Aug. 21, 1956
4 Sheets-Sheet l
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INVENTOR
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ATTORNEYS
June 4, 1963
L. s. WALLIS
3,091,987
GUILLOTINES
Filed Aug. 21,1956
4 Shéets-Sheet 2
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ATTORNEYS
June 4, 1963
Filed Aug. 21, 1956
|_. s. WALLIS
GUILLOTINES
3,091,987
4 Sheets-Sheet 5
INVENTOR
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.
ATTORNEYS
June 4, 1963
L. s. WALLIS
3,091,987
GUILLOTINES
Filed Aug. 21, 1956
4 Sheets-Sheet 4
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ATTORNEYS
United States Patent 0 " ice
1
3,091,987
Patented June 4, 1963
2
single lobe 24 being incorporated in the illustrated ex
3,091,987
Lionel Selby Wallis, 48 Lady Byron Lane,
Knowle, England
ample.
GUILLOTINES
The cam lobe or lobes 24 are adapted to co
operate with a spring loaded plunger 25 (see FIGS. 1 and
5) connected through a rocker 26 with the clutch actuat
ing pin 27 of the single revolution power press type clutch.
In operation each revolution of the vdriven shaft 10
will result in the displacement of one tooth of the ratchet
Filed Aug. 21, 1956, Ser. No. 605,266
Claims priority, application Great Britain Sept. 7, 1955
5 Claims. (Cl. 83-250)
wheel 18 so that for a single lobe ratchet wheel the clutch
The present invention has relation to improvements
actuating pin 27 will be operated after each twelve revolu
connected with guillotines used for severing paper, card 10 tions of the driven shaft 10 during which time the feed
board, fabrics, metal strip, and like material, ‘and has
rolls :14a and 14b will deliver a length of material twelve
for its object to provide means for increasing the selec~
tion of the lengths of material to be severed ‘by use of
times the setting of the variable throw crank 11. To
admit of actuation of the clutch after each revolution of
the shaft a locking pin 28 (FIG. 5) may be used to retain
variable control means to determine the release of the
guillotine blade for its cutting stroke.
15 the clutch pin 27 in its operative position when the length
The invention consists of improvements relating to
of material to be severed is determined only by the ad
guillotines and is characterised by the incorporation of a
justment of the variable throw crank.
driven variable throw crank connected to a one way drive
mechanism adapted to impart an intermittent motion to a
According to an alternative means seen in FIGURES
6 and 7 for the actuation of the power clutch the cam
feed roll, and means provided in or under the control of 20 disc 23 secured to the driving shaft 10 is adapted to
the means for driving said crank for determining the re
actuate the roller 22 carried by the end of a lever 29
lease of the guillotine blade to thus furnish a periodic
pivoted on the frame, the opposite end of the lever being
sequence of selected lengths of severed material.
provided with a leaf spring extension 30' which is adapted
Embodiments of the present invention will now be
to intermittently operate the arm 31a of an automatic
described by way of example with reference to the accom 25 counting device 31 consequent on each revolution of.the
panying drawings in which,
shaft 10. The counting device is adapted to initiate a
FIGS. 1 and 2 are part sectional front and end eleva
control operation after a predetermined count of impulses
tions respectively, of a guillotine according to the present
fed into the device, consequent on which operation the
invention,
device automatically resets itself. The counting device
FIG. 3 is a section along the line 3~3 seen in FIG. 1 30 31 is adapted to operate a switch incorporated therein
and illustrates a well-known form of single revolution
after a predetermined count to complete the circuit of an
power presstype clutch,
electro magnetic solenoid 32 (FIG. 7) which is pivotally
FIG. 4 is a section along the line 4——4 seen in FIG. 1,
FIG. 5 is a section of the actuating mechanism for the
clutch pin of the single revolution power press type clutch,
and
FIGS. 6 and 7 illustrate electro-mechanical parts of an
alternative embodiment of the invention.
Referring to the embodiment illustrated in FIGS. 1
to 5 the guillotine comprises a driven shaft 10 having
mounted thereon a variable throw crank 11 linked by a
rack bar 12 to a roller type clutch 13 provided on one
14a of a pair of co-operating feed rolls 14a and 14b to
connected to a rocker 3-3 which in turn actuates the clutch
35
pin 27 so that the length to be severed by the guillotine
is determined by the product of the throw of the crank 11
and the selected cycle of the counting device 31.
Iclaim:
1. In a guillotine, a relatively stationary support, a
continuously driven power input shaft rotatably mounted
on said support, relatively ?xed and reciprocable guillotine
blades mounted on said support, a single revolution type
clutch comprising a driven clutch member mounted on
and eccentric with respect to said shaft, means directly
thereby impart an intermittent rotation to said rolls. The
connecting the reciprocable guillotine blade to said driven
45
variable throw crank 11 is desirably calibrated in accord
clutch member for translating eccentric rotation of said
ance with the length of material fed by the rolls during
driven member to reciprocation of said reciprocable blade,
each throw of the crank. A connecting rod 15 carrying
a clutch drive member ?xed on said shaft, a clutch pin
a guillotine blade 16 at its lower end is eccentrically
disposed for movement between a clutch disengaged posi
mounted on a sleeve 17 located on the driven shaft 10,
tion and a clutch engaging position where it positively
50
operative connection being established at selected inter
couples said driven clutch member to said clutch drive
vals between the driven shaft 10 and the sleeve 17 through
member, and means comprising cam means mounted on
a known type of single revolution power press type clutch
said shaft and operatively connected to said clutch pin for
(seen in FIGURE 3) to determine the actuation of the
selectively causing such clutch engagement as to effect a
blade.
single reciprocation of said reciprocable guillotine blade
According to one means for actuating the clutch a 55 upon each predetermined number of revolutions of said
ratchet wheel 18 (FIGS. 1 and 4) is loosely mounted on
shaft.
the shaft 10 and is intermittently driven by a pawl 19
2. In the guillotine de?ned in claim 1, feed roll means
which is actuated by a link 20 pivotally connected to a
mounted on said support, and means for actuating said
lever 21 which lever is pivotally mounted on the frame of
feed roll means from said shaft comprising a variable
the machine and is rocked by the co-operation of a roller
throw crank on said shaft having an operative drive con~
22 on the lever 21 with the grooved track formed in a
nection to said feed roll means.
cam disc 23 secured to the shaft 10. As seen in FIG. 4
3. In the guillotine de?ned in claim 2, means for lock
the ratchet wheel 18 is provided for example with twelve
ing said clutch pin in clutch engaged position.
teeth and incorporates one, three, four or six axially pro
4. In the guillotine de?ned in claim 1, said last named
jecting cam lobes according to the range of selected
means comprising a ratchet wheel freely rotatable on said
lengths of feed to be associated with the guillotine, a
shaft and carrying said clutch pin actuating cam means, a
3,091,987
4
a3
drive pawl for said ratchet wheel, and a cam continuously
rotatable with said shaft for actuating said pawl to unidi
rectionally intermittently rotate said ratchet Wheel.
5. In the guillotine de?ned in claim 1, said last named
means comprising a cam continuously rotating with said 5
shaft, a revolution counter driven by said cam, and means
operative upon a predetermined count of said counter for
controlling actuation of said clutch pin.
References Cited in the ?le of this patent
UNITED STATES PATENTS
509,854
Sawyer ______________ __ Nov. 28, 1893
10
1,125,550
1,153,183
1,353,292
1,549,963
1,574,481
1,909,831
1,926,435
2,163,596
Johnson _____________ __ Ian. 19, 1915
Aicher et a1 ___________ __ Sept. 14, 1915
Swanson ______________ __ Sept. 21,
Byerlein _____________ __ Aug. 18,
Hensley _______________ __ Feb. 23,
Jensen _______________ __ May 16,
DeVoe _______________ __ Sept. 12,
1920
1925
1926
1933
1933
2,216,629
Fisher _______________ _- June 27, 1939
Sahel et al. __- __________ __ Oct. 1, 1940
2,564,434
Holt _________________ __ Aug. 14, 1951
572,594
Germany _____________ __ June 1, 1932
FOREIGN PATENTS
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