Improvements in Sole Rounding and Channelling Machines.
Year: 1899

page_text: Date of Application, 18th Mar., 1899-Accepted, 27th May, 1899
[Communicated from abroad by JOSEPH ELI BERTRAND, of 196, Summer Street,
Boston, Massachusetts, United States of America, Machinist.]
Improvements in Sole Rounding and Channelling Machines.
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 sole rough rounding and channelling machines, and it
consists in certain novel features of construction, arrangement and combination of
parts, which will be readily understood by reference to the description of the
accompanying drawings and to the claims hereto appended aud in which my inven-
tion is clearly pointed out.
Figure 1 of the drawings is a plan of a machine embodying my invention.
Figure 2 is a side elevation thereof.
Figure 3 is a side elevation of the opposite side to that shown in Figure 2.
Figure 4 is a front elevation.
Figure 5 is a sectional plan, the cutting plane being on line, & Figure 2.
Figure 6 is a partial vertical section on line y, y of Figure 5.
Figure 7 is a plan of the front portion of the nose of the machine with the
channel cutters and the gage.
Figure 8 is a front elevation of the same parts with the trimming or rough
rounding cutter, the feed point, and the cutter and feed carrying bars.
Figure 9 is a vertical section on line 2, 2 on Figure 7.
Figure 10 is an elevation of the inner face of the combined feed and cutting
plate, or anvil, against which the trimming cutter acts.
Figures 7, 8, 9, and 10, are drawn to an enlarged scale.
Figures 11 and 12 are respectively a side elevation and a transverse section of the
oscillating channel cutter, drawn to a still larger scale,, and Figures 13 and 14
are respectively an elevation and an end view of a portion of a sole, illustrating the
trimming and channel cuts.
In the drawings A is the frame of the head of the machine, constructed and
arranged to be mounted upon a column or bench, not shown.
The frame A has mounted in suitable bearings formed therein the shaft 1, upon
which are mounted the cam disc 2 and the cylinder cams 3 and 4, between said
bearings, and the driving wheel C on the projecting end thereof as shown.
To the front end of the upwardly projecting plate like portion of the frame A
and the bracket 5 is secured the U shaped pendent guide plate 6, and pivoted to
the said frame A is the crescent shaped lever 7, to the front end of which is secured
the feed plate 8, the inner face of which has set therein the plate 9, of soft metal,
the inner face of which is serrated or roughened to insure a good hold upon the
surface of the rand or sole to feed the work, as shown in Figure 10.
The rear end of the lever 7 has set therein the stud 10 upon which is mounted

page_text: the truck 11, upon which the edge cam formed upon the periphery of the cam disc 2
acts to vibrate said lever vertically, said truck being kept in contact with said
cam by the tension of the spring 12.
The lever 7 is mounted upon the pivot pin 13 so as to be movable laterally, or
lengthwise of said pin, to assist in feeding the work.
A three armed lever 14 is mounted upon a vertical pivot pin 15 secured in a
fixed position in the ears or bosses 16 and 17, formed on the frame A as shown in
Figures 3 and 4.
The rearwardly projecting arm of the lever 14 carries at its rear end a cam truck
which is acted upon by the groove of the cylinder cam 3 to vibrate said lever 14,
and the upper forwardly projecting arm of said lever is connected at its front end
with the lever 7, by a swivelling block 18, to impart the necessary lateral movement
to said lever upon the pin 13 for feeding the work.
An arm 19 is pivoted to the frame A at its rear end by the vertical pin 20, rests
at its forward end upon a supporting portion A¹ of the frame A, and is provided in
its upper side with a longitudinal groove in which are mounted so as to be movable
endwise therein, the bars 21 and 22 which are held in place in said groove by the
caps 23, and the bar 22 has secured to its front end the trimming cutter 24, and
to the upper side of its rear end the swivelling block 25, which is engaged by the
forked arm of the elbow lever 20, the other arm of which carries a cam truck 27,
which is acted upon by the cam groove 28 of the cylinder cam 4, to vibrate said
lever and impart to said bar 32 an intermittent reciprocation, as shown in
Figures 1 and 5.
The bar 21 has set in its front end the feed point or spur 29, and in the upper
side of its rear end, a stud upon which is mounted the swivelling block 30, which:
is engaged by the forked arm of the elbow lever 31, the other arm of which carries
a cam truck 32, which is acted upon by the cam path 33, of the cylinder cam 4,
to vibrate said lever and impart to said bar 21 an intermittent reciprocation in
the direction of its length.
The front ends of the bars 21 and 22 are partially bifurcated and provided on
their undersides with dovetailed grooves to receive the feed point 29 and the
trimming cutter 24 respectively, which are clamped firmly in said grooves by the
clamping screws 34 and 35 respectively, as shown in Figure 8.
The arm 19 is provided with the laterally projecting ears 36, to which is pivoted
one end of the link 37, the other end of which is pivoted to the front end of the s
lower forwardly projecting arm of the lever 14, by the vibration of which the
arm 19 and bars 21 and 22 have imparted thereto a lateral vibratory motion in
unison with the lateral motion of the lever 7 and feed plate 8, for the purpose of
feeding the work.
The base plate of the frame A has formed upon its under side two downwardly
projecting ears 38 between which said plate has cut through it a rectangular
opening in which is mounted so as to be vertically movable therein the block 39
having an inverted T shaped groove formed in its upper side, in which is fitted,
so as to be movable endwise therein,, the nose piece 40, upon which are adjustably
secured in fixed positions the gage plate 41 and the cutter 42, and also has mounted
in a suitable bearing therein the short shaft 43, the axis of which is at right
angles to the line of feed of the work, and has formed upon its front end the
circular cutter 44, concentric with said shaft but connected thereto by the eccentric
neck 45 as shown in Figures 11 and 12, said cutter having a knife edge extending
from one side of the neck 45 around to the opposite side thercof.
The shaft 43 has firmly secured thereon the toothed segment 46, with which the
teeth of the rack 47 engage as shown in Figure 9.
50
The rack 47 has set in its end the laterally projecting pin 48 with which the
forked end of the lever 49 secured upon the front end of the shaft 50 engages to
impart to said rack a reciprocating movement, and thereby cause an oscillating 64
movement to be imparted to said cutter 44 to cut the channel.
The shaft 50 is mounted in bearings in the ears 51 and 52, formed upon the

page_text: frame A, in such a manner that it is free to be moved endwise and oscillated about
its axis therein, and has fitted upon its rear end the arm 53, the hub of which is
divided and embraces the ear 52 to prevent forward and rearward movement of
said arm when the shaft 50 is moved endwise in unison with the movements of
the nose piece 40, said arm however being connected to said shaft by a spline and
groove, so that said shaft is compelled to move about its axis in unison with said
arm, to which a series of rapid vibrations is imparted during about one third of
each revolution of the shaft 1 by the face cam 54, formed upon the side of the cam
disc 2, acting upon the truck 55 carried by said arm 53, us shown in Figures 1
and 3; said truck 55 being held in contact with said cam 54 by the spring 56.
A block or stand 57 is secured to the frame A above the forward cap plate 23
to prevent any possibility of the front ends of the arm 19 and bars 21 and 22 being
forced upward during the cutting or feeding of the material.
The nose piece 40 is limited in its forward movement by the adjustable stop
screw 58, toward which it is pressed by the spring 59 enclosed in a chamber in
said nose piece and acting against a shoulder on the follower 60, the rear end of
which abuts against the pin 61 as shown in Figure 6.
The nose piece 40 is moved to the rear for the purpose of placing the work in
position by means of the cord or chain 62 secured to the screw stud 63, and after
passing over the pulley 64, is connected to a treadle (not shown) near the floor.
The block 39 rests upon two eccentrics 65 which have bearings in the cars 38
and which have secured thereto the radius arms 66, the movable ends of which are
connected by the link 67, to one end of which is pivoted one end of the rod 08,
the other end of which extends through a bearing in the stand 69 between which
and a shoulder on said rod is the spring 70, the tension of which moves the lower
ends of said arms 66 towards the front of the machine.
The link 67 has set therein a stud to which is connected one end of the cord or
chain 71 which passes to the rear over the pulley 72 and is connected at its other
end to a treadle (not shown) near the floor, by means of which the link 67 and the
lower ends of the arms 66 may be moved to the rear against the tension of the
spring 70 and thus turn said eccentrics so as to raise the block 39 and nose piece 40
to reduce the distance of the channel from the rough rounded edge of the sole, the
movements of the radius arms 66 being limited in both directions by the stop
pins 73.
The cutter 24 has a straight cutting edge with its flat side downwards as shown
in Figures 6 and 8.
The guide plate 6 enters the angular space between the rand and upper of the
boot or shoe and serves to guide the same as it is fed through the machine; said
plate bearing against the rand below the lower end of the feed plate 8 and for
some distance to either side thereof as shown in Figure 4.
The operation of my invention is as follows:-
The several parts of the machine being in the positions shown in Figures 1, 2,
3, and 4, the operator retracts the nose piece 40 by placing his foot upon the treadle
connected thereto by the cord or chain 62 then places the tread surface of the sole
against the gage plate 41, with the lower ends of the guide plate 6 bearing against
the upper in proximity to the rand and then releases said treadle when the
reaction of the spring 59 causes a forward movement of said nose piece, and a
clamping of the sole edge between the guide plate 6 and the gage plate 41.
If power be applied to the wheel C to revolve it in the direction indicated by the
arrow on Figure 2, the first effect produced is a forward movement of the bar 21
and feed point 29 till said feed point enters the sole and presses the welt into
firm contact with the plate 9, caused by the action of the cam path 33 upon the
lever 31.
When the forward movement of the feed point is completed and while said feed
point remains in the sole, the forward ends of the arm 19, the bars 21 and 22 and
the cutter 24 and the lever 7, with the feed plate 8 are moved towards the left, by

page_text: the action of the cam 3 upon the lever 14 to feed the work, which being pressed
against the cutting edge of the stationary cutter 42 as it is fed forward a section
of a shallow incision or slit 74, at right angles to the tread surface of the sole, is
formed therein as shown in Figures 13 and 14.
During the same time that the work is being fed the cam 64 is acting upon the
truck 55 to oscillate the shaft 50 and cause a series of rapid reciprocations of the
rack 47 and a corresponding series of oscillations of the cutter 44, which cuts an
incision 75 parallel or nearly so to the tread surface of the sole and extending
from the incision 74 towards the centre of the sole, a distance nearly equal to the
diameter of said cutter 44, as shown in Figures 13 and 14.
When the movement of the arm 19 towards the left ceases, and the feed of the
work is completed, the action of the cam-path 28 upon. the lever 26 causes the bar 22
and cutter 24 to be moved forward to force said cutter through the sole and welt
into contact with the plate 9 thereby cutting a section of the trimming incision 76,
see Figures 13 and 14.
The continuation of the revolution of the cam shaft 1 causes the cutter 24 and
the feed point 29 to recede to their rearmost positions while the plate 8 moves
towards the front, and then the said feed point, cutter, and feed plate are moved
towards the right to the positions occupied at the start, the work being prevented
from being moved backward by being clamped between the guide arm 6 and the
gage plate 41, these operations being repeated at each revolution of the cam shaft 1.
The distance of the channel from the rough rounded edge of the sole may be
varied by a partial rotation of the eccentrics through the medium of the cord 71,
the link 67, the levers 66 and the spring 59.
The elbow levers 24 and 31 are mounted upon a common vertical pin 74, set
in a fixed position in the boss 75 and the bracket 74 as shown in Figures 1, 2,
3 and 4.
Having now particularly described and ascertained the nature of this inven
tion 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 rough rounding machine, the combination of a yielding nose piece and
a gage plate carried thereby; a stationary guide plate co-operating with said nose
picce to clamp the sole edge; a reciprocating and laterally movable feed point;
and a feed pluie constructed and arranged to move towards and from said feed
point and laterally in unison therewith.
2nd. In a rough rounding and channelling machine, the combination of a
stationary guide plate; a yielding nose piece and a gage plate cooperating there-
with to clamp the work; an endwise reciprocating and laterally movable feed
point an endlwise reciprocating and laterally movable trimming cutter; a feed
plate constructed and arranged to move toward and from said feed point and
cutter, and laterally therewith; a fixed cutter carried by said nose piece, and
arranged to cut a shallow incision in the sole at right angles to the tread surface
thereof as the work is fed past it; an oscillating disc like cutter, also carried
by said nose piece and arranged to cut an incision from said shallow incision
towards the centre of the sole, parallel or nearly so to the tread surface thereof;
means for imparting to said disc like cutter a series of rapid oscillations, during
the time that the work is being fed; and means for imparting intermittent
reciprocations and lateral movements to said feed point, said trimming cutter and
the feed plate.
3rd. The combination of the pivoted grooved arm 19; the bars 21 and 22 fitted
to and movable endwise in the groove in said arm; the cutter 24, the elbow levers 26
and 31, the cam 4, the paths 28 and 33, the lever 14 connected to said arm 19;
the cam 3; the lever ; the feel plate 8; the cam 2, for vibrating said lever and
the swivelling block 18 connecting said lever to an arm of the lever 14, all con-
structed, arranged and operating substantially as described.
4th. In a machine for channelling and rough rounding the soles of boots and

page_text: shoes while on the last, the combination of a vibrating and laterally movable feed
plate arranged to engage the welt; a normally fixed but adjustable U shaped
guide plate arranged to bear against and support the welt upon both sides of and
below said feed plate and against the upper to guide the shoe; a reciprocating
and laterally movable feed point; co-operating with said feed plate to feed the
work and a reciprocating and laterally movable trimming cutter co-operating with
said feed plate, to trim a section of the sole after each feeding movement is com-
pleted.
5th. In a channel cutting machine, the combination of a work feeding mechau-
ism; a stationary cutter arranged to cut a shallow slit at right angles to the tread
surface of the solo as the work is fed past it; and a circular disc like cutter con-
structed and arranged to oscillate about its axis in a plane parallel or nearly so
to the tread surface of the sole and cut an incision from said shallow slit toward
the centre of the sole as it is fed toward said cutter.
6th. In a sole rough rounding and channelling machine the combination of the
eccentrics 65, 65 mounted in bearings in the ears 38, 38; the block 39 supported
upon said eccentrics and having an inverted T shaped groove formed in its upper
side; the nose piece 40 fitted to and movable endwise in said groove; a gage plate
carried by said nose piece; the spring 59 for pressing said nose piece toward the
front; the fixed U shaped guide plate 6; means for partially rotating said
eccentrics to raise and lower said nose piece; and means for retracting said nose
piece against the tension of said spring 48 to enable the work to be placed in
position.
7th. In a sole channelling machine, the combination of the yielding nose
piece 40; the gage plate 41, the stationary cutter 42 and the oscillating cutter 44
carried by said nose piece; the toothed segment 46 fast on the shank of said
outter 44; the rack 47 engaging said segment; the endwise movable oscillating
shaft 50; the lever 49 mounted on said shaft and engaging said rack; the arm 3
ponnected to said shaft so as to oscillate therewith while said shaft is freely
movable endwise therein; the truck 55 carried by said arm 53; and the cam 54,
all arranged to operate as set forth.