Improvements in Channelling Machines for Use in the Manufacture of Boots and Shoes.
Year: 1898

page_text: Date of Application, 26th Apr., 1898-Accepted, 5th Nov., 1898
[Communicated from abroad by MELLEN BRAY, of Newton, in the County of
Middlesex, and State of Massachusetts, United States of America, Manu-
facturer.]
Improvements in Channelling Machines for Use in the Manufacture of
Boots and Shoes.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, 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 :)-
My invention relates to machines for cutting and opening channels in the soles
of boots and shoes, and it consists in certain novel features of construction, arrange-
ment, and combination of parts which will be readily understood by reference to
the description of the accompanying drawings, in which:
Figure 1 is a plan of a sole channelling and opening machine embodying my
invention.
Figure 2 is an elevation of the same looking towards the top of Figure 1.
Figure 3 is an elevation of the opposite side.
Figure 4 is a front elevation with a portion of the front cap broken away.
Figure
5 is a plan of the cutting tools and gauges with the feed disc removed.
Figures 6, 7 and 8 are respectively a plan, a side elevation and a front elevation
of the channel cutting knife, the channel opening blade, and the section of the
vibrating lever to which they are secured.
Figure 9 is a perspective view of the channel cutting knife removed from its
carrier.
Figures 10 and 11 are respectively a side elevation and an inverted plan of
the channel opening blade.
Figure 12 is a front elevation of the channel cutter, and channel opener, and
the lever for carrying the same.
Figures 13 and 14 are respectively a plan and a transverse section of a piece
af leather illustrating a channel having its flap opened out as performed by my
invention.
Figures 15 and 16 are respectively a plan and an edge view of the stationary
cutter.
Figures 17 and 18 are respectively a rear elevation, and a central section of the
feed disc detached from its shaft.
Figures 19 and 20 are respectively a plan and an elevation of the upper or
fixed guage.
In the drawings A is the frame of the head of the machine constructed and
arranged to be mounted upon a suitable column or bench, not shown, in any well
known manner, and having mounted in a bearing A¹ therein and in the stand B
the driving shaft C having secured upon one end thereof the driving pulley D.
This shaft has set in its opposite end the crank pin E slightly eccentric to the axis
CD 077

page_text: of said shaft, and between said driving pulley and crank pin said shaft has firmly
secured thereon or formed in one piece therewith the worm F shown only in
Figure 2.
Ğ is the feed shaft mounted in bearings in said frame so as to be revoluble, and
movable endwise therein, with its axis in a vertical plane at a right angle to the
axis of the shaft C as shown.
The shaft G has mounted thereon so as to be revoluble therewith, but so that
said shaft may be moved endwise through it, the worm gear wheel H, which is
engaged by the worm F and is revolved thereby.
The shaft G has firmly secured upon its front end the feed disc I, having the
outer portion of its rear face roughened or serrated by radial lines to ensure its
engagement with the stock to be operated upon.
The shaft G also has loosely mounted thereon, just at the rear of the feed dise I
the guide roll J against the periphery of which the rough rounded edge of the
sole bears while being channelled particularly when the sole to be
channelled projects varying distances from the edge of the tread surface of
the last, but when the projection of the sole is uniform said guide roll may
be dispensed with, and the work be guided by the edge of the feed disc entering
the angular space between the sole and upper at their junction.
The shaft G extends to the rear to a considerable distance beyond its rear bear-
ing in the frame A, has fitted thereto the nut a and check nut a¹ and has
mounted thereon between its rear bearing and the nut a the spring K which
serves to move said shaft toward the rear to press the feed disc into firm contact
with the side of the sole edge next the last to insure the proper feeding of the
work.
The rear end of said shaft has loosely mounted thereon the collar L provided
with the two trunnions b, b, with which the forked end of the elbow lever M
engages, the long arm of which is connected by a rod or wire c with a treadle,
near the floor, but not shown, by means of which said shaft G and the feed disc I
may be moved towards the front against the tension of the spring K to facilitate
the proper placing of the sole in position for commencing the operation of chan-
nelling.
The front of the frame A has fitted to a bearing therein, so as to be vertically
movable therein, the slide N, upon the upper end of which are mounted the re-
voluble gauge roll 0, the vibrating cutter-carrying lever P, P¹ the stationary
cutter d and the fixed presser gauge e.
The cutter d is formed from a rectangular bar of steel and is provided with a
curved cutting edge as shown in Figures 15 and 16 and is so arranged with its
cutting edges in a plane at substantially a right angle to the vertical plane in
which lies the line of direction of the feed and adjustable upon the slide N, that
when the sole is pressed against its cutting end, and is fed forward said cutter will
cut a shallow incision in said sole at a right angle to its tread surface, which
incision forms the outer boundary of the channel to be cut by the vibrating
cutter 3. The presser gauge e is constructed as shown in Figures 19 and 20 and
is adjustably secured to the slide N and serves as a bearing for that portion of
the sole which is outside of the incision formed therein by the cutter d, as it is
pressed towards the rear by the action thereon of the feed disk I caused by the
tension of the spring K on the shaft G.
The slide N has its lower end forked to receive the spring f, Figure 4 one end
of which is connected to said slide and its opposite end to a threaded stem g, which
passes downward through the fixed plate Q and has fitted thereon the thumb nut h
by which the tension of said spring may be increased or diminished at will.
The upper part or head of the slide N has set in its left side the outwardly
projecting pin, with which the eccentric portion of the edge of the cam plate R,
mounted upon the stud set in the frame A, engages, and by a partial rotation of
which the slide N is raised, said cam plate being connected by the rod or wire k

page_text: with a treadle, not shown, by operating which said slide may be raised at the
will of the operator, the spring S serving to return said cam plate and its operat-
ing treadle to their normal positions when the operator's foot is removed from the
treadle, the motions of said slide being limited by the stop-screw 7 and the stop /¹
adjustable upon a screw set in the slide N as shown in Figure 4.
The cutter-carrying lever PP¹ made in two parts, is mounted upon the fulcrum
pin m set in the ears m¹, m² of the slide N and the lower end of its pendant arm
is connected by the rod T, to the crank pin E, by which a short but rapid vibra-
tion is imparted to said lever in a vertical plane.
The part P of the cutter-carrying lever is pivoted at 2 to the part P and is
adjustable about said pivot to vary the angle of the cutting knife 3 to a vertical
plane by means of the clamping screw 4, the shank of which passes through the
slot 5 Figure 7 in the rear end of the part P¹ and screws into the part P as shown.
The forward end of the part 1" has formed in its side a slightly curved rectan-
gular slot 6 to receive the knife 3 which has a straight cutting lower end at right
angles to the line of vibration of said lever and an inclined cutting knife edge on
that edge thereof toward which the work is fed, and is clamped in said curved
rectangular slot 6 by the cap 7 formed in one piece with the channel opening
blade 8, said cap having a similarly curved rectangular slot formed therein to
receive one edge of said knife and secured to the part P by the clamping screw 9
and the steady-pin 10.
By this construction the knife 3 may be formed on the end of a slightly curved
rectangular bar as shown in Figure 9, and it may be adjusted endwise in its bear-
ing as it is worn up by sharpening, and it may also be adjusted to enter the sole
at different angles by means of the clamping screw 4 as before described.
The channel opening blade 8 is secured to the part P1 of the lever P as above
described with its inner edge coinciding with the contiguous edge of the knife 3
and in contact therewith as shown in Figure 8.
Said channel opening blade has its operating end curved so that while the
portion 2* next to the knife h is somewhat shorter than said knife, or in other
words, its lower end is above the lower end of the knife, its opposite edge por-
tion 3* has its lower end considerably below the level of the lower end of said knife,
as shown in Figure 8.
The curved lower end of said blade 8 has formed therein, near the cutting
knife 3 a shallow curved notch 4* as shown.
The blade 8 also has its front face curved laterally as shown in Figure 11 80
that while the part 2* of said blade enters the cut made by the knife 3, the curved
notch 4* engages the edge of the flap as said blade is reciprocated and turns said
edge outward, and the curved portions 3* and 6* complete the turning of the flap
and by the rapid impact thereof firmly sets the flap in its turned position the
parts 3* and 6* being outside of said flap.
By this construction and operation of the channel cutting and opening device
moving in a direction at right angles to the line of feed of the material being
acted upon, a perfect channel is produced and fully prepared to receive the sewing
at one operation, which is a very material advantage over cutting the channel at
one operation, and turning or opening it by a separate and distinct operation, as is
now generally the practice.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, as communicated to
me by my foreign correspondent, I declare that what I claim is:-
1st. In a sole channelling machine, the combination of a work feeding
mechanism; a cutter carrying lever constructed and arranged to vibrate in a plane
which is at substantially a right angle to the plane in which lies the line of direc-
tion of the feed, and a cutter carried by said lever and having a straight cutting
end at a right angle to the plane of vibration of said lever.
2nd. In a machine for channelling, boot and shoe soles, the combination of a

page_text: feeding mechanism; a fixed cutter arranged with its cutting edges in a plane at
substantially a right angle to the vertical plane in which lies the line of direction
of the feed; and a cutter constructed and arranged to be vibrated in a plane sub-
stantially at a right angle to the plane in which lies the line of direction of the
feed, and the plane in which lie the cutting edges of the fixed cutter.
3rd. In a machine for channelling boot and shoe soles the combination of a
feeding mechanism; a fixed cutter constructed and arranged as set forth; a pres-
sure gauge arranged and operating as described; and a movable cutter constructed
and arranged to vibrate in a plane substantially at a right angle to the plane in
which lies the line of direction of the feed.
4th. In a sole channelling machine, a feeding mechanism comprising the driv-
ing shaft C; the work wheel H; the worm 1; the shaft G carrying said worm
wheel, and movable endwise therein; the feed disc I mounted upon said shaft G
and having its rear face roughened; and the revoluble gauge roll O, all combined
and arranged to operate substantially as described.
5th. In a sole channelling machine, the combination of the feed disc I; the
revoluble gauge roll 0; the vertically vibrating lever PP1; the cutter 3 adjust-
ably mounted on said lever PP"; and means for imparting a rapid vibration to
said lever and cutter, in a plane substantially at a right angle to the plane in
which lies the line of direction of the feed.
6th. The combination of the shafts C and G; the worm F; the worm wheel H
the feed disc I; the revoluble gauge rolls J and 0; the pivoted elbow lever P, P';
the cutter 3 adjustably secured to said lever; the crank pin E; the link or con-
necting rod T; the spring K on the shaft G; the nuts, a¹ and the trunnioned
collar L on said shaft; the lever M; means for moving said lever about its ful-
crum; and a stop to limit its upward movement.
7th. In a sole channelling machine, the combination of a revoluble feed disc;
a vertically movable slide; a rotary gauge, a fixed horizontal cutter, a pressure
plane
and a movable cutter lever constructed and arranged to vibrate in a
gauge
substantially at a right angle to the plane in which lies the line of direction of
the feed, all mounted upon the head of said slide; a cutter carried by said vibrat-
ing lever; a spring to press said slide downward; means for raising said slide
against the tension of said spring; and stops for limiting the upward and down-
ward movements of said slide.
8th. In a sole channelling machine, the combination of a feed mechanism; and
a channel cutting blade constructed and arranged to vibrate in a plane substan-
tially at a right angle to the plane in which lies the line of direction of the feed,
and having a horizontal cutting edge. at its lower end and an inclined cutting
knife edge on that edge thereof toward which the work is fed.
9th. In a channel cutting machine the combination with a feeding mechanism
of a vibratory lever made in two parts connected together and adjustable one upon
the other by means of a pivot pin, and a clamping screw, the latter passing
through a slot in one of said parts concentric with the axis of said pivot pin and
screwed into the other of said parts; a channel cutting knife clamped to the
movable end of said lever and adjustable in the direction of the length of said
knife; and means for vibrating said lever in a vertical plane at right angles to
the line of feed of the material.
10th. In a channel cutting and flap turning machine the combination with a
feeding mechanism and a fixed cutter arranged to cut a shallow incision in the
material as it is fed past it, of a vibrating cutter moving in a vertical plane at
right angles to the line of feed and adapted to cut a succession of incisions in the
material at a slight angle to the face thereof; and a channel opening blade in
close proximity to and movable with said vibrating cutter.
11th. In a sole channelling machine, the combination with a feeding mechanism
and a fixed cutter arranged to cut a shallow incision in the face of the material,
as it is fed past it, of the vibratory lever P, P' made in two parts pivoted together
and adjustable one upon the other; the cutting blade 3 and the channel opening

page_text: blade 8 secured to the lever P, P¹ and arranged relative to each other as set forth;
and means for vibrating said lever in a vertical plane at right angles to the line
of feed of the material to be acted upon.
12th. In a sole channelling machine, the combination of the rotary feed disc I;
the revoluble gauge rolls J and 0; the fixed pressure gauge e; the fixed cutter d;
a vibratory lever movable in a vertical plane at right angles to the line of feed;
the cutter 3 and the channel opening blade S, both carried by said lever; and
means for imparting a short and rapid vibration to said lever substantially as
described.
11
تيمم
1
. A
1 1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.