IMPROVEMENTS IN MACHINERY OR APPARATUS FOR MAKING CLOG SOLES
Year: 1877

page_text: LETTERS PATENT to James Salkeld Robinson, of Rochdale, in the County of
Lancaster, Engineer, and John Smith, of the same Place, Engineer, for the
Invention of "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR MAKING
CLOG SOLES."
Sealed the 13th October 1877, and dated the 16th April 1877.
PROVISIONAL SPECIFICATION left by the said James Salkeld Robinson and
John Smith at the Office of the Commissioners of Patents on the 16th April
1877.
JAMES SALKELD ROBINSON, of Rochdale, in the County of Lancaster, Engineer,
and JOHN SMITH, of the same Place, Engineer. "IMPROVEMENTS IN MACHINERY OR
APPARATUS FOR MAKING CLOG SOLES."
Our Invention relates to improvements upon that machinery for which Letters
Patent were granted to John Robinson and John Smith, bearing date 4th October
1875, No. 3442, and relates,-
Firstly. To the method of marking out the soles, for which purpose we use a
multiple stencil plate having slits or piercings to correspond with the lines we intend
the band saw to follow, the said marking out being effected by drawing a pencil or
other marker through the slits or piercings.
Secondly. To the machine which is used for blocking the sole to its shape.
According to our present Improvement we place the said soles horizontally, and
adapt them to a bed between clamps, whereby we are enabled to operate upon two
soles at each traverse of the cutter. For this purpose we employ a fixed block of
suitable form on each side of which is placed a sole pressed towards the said block
by suitably shaped clamps drawn together by right and left handed screws, and the
cutter being then caused to traverse, effects the required operation.
Our next improvement relates to the machine for hollowing the inside of the sole,
our object being to operate on each side thereof separately, whereby we are enabled
to leave the centre part thereof with a slightly flat surface. To accomplish this we
use a similar cutter to that of our former Patent aforsesaid, but in addition to either
head; being capable of moving vertically or transversely we make it capable of
working down one side of the sole and up the other by a tappet or tappets. Or wo

page_text: make the table on which the sole rests move transversely. The to-and-fro move-
ments of the table longitudinally cause the cutter to act as before, but the transverse
movements cause such operation to take place, first on one side and then on the
other. Or the whole may be effected at one longitudinal movement in combination
with the above transverse movements.
The next part of our Invention relates to the finishing process. For this purpose
we use endless bands covered with powdered glass, emery, or other such substance
formed or adapted in a peculiar manner. These bands according to one arrangement,
we form of a section corresponding to or approaching the shape of the part to be finished
and adapt them to ordinary rollers driven in any usual manner; or instead of this
we form the roller or rollers of the said shape, and make the bands parallel in
section. The bands or the rollers may be made of india-rubber or other flexible
material.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said James Salkeld Robinson and John Smith in the Great Seal Patent Office
on the 16th October 1877.
JAMES SALKELD ROBINSON, of Rochdale, in the County of Lancaster, Engineer,
and JOHN SMITH, of the same Place, Engineer. "IMPROVEMENTS IN MACHINERY OR
APPARATUS FOR MAKING CLOG SOLES."
Our Invention relates to improvements upon that machinery for which Letters
Patent were granted to John Robinson and John Smith, bearing date Fourth October
One thousand eight hundred and seventy-five, No. 3442, and relates,-
Firstly. To the method of marking out the soles, for which purpose we use a
multiple stencil plate having slits or piercings to correspond with the lines we intend
the band, or other saw to follow, the said workings out being effected by drawing a
pencil or other marker through the slits or piercings.
Secondly. To the machine which is used for blocking the sole to its shape.
According to our Invention we place the said soles horizontally, and adapt
them to a bed between clamps, whereby we are enabled to operate upon two soles at
cach traverse of the cutter.
Thirdly. Our Invention relates to the machine for hollowing the inside of the sole,
our object being to operate on each side thereof separately, whereby we are enabled
to leave the centre part thereof with a slightly flat surface.
Fourthly. Our Invention relates to the finishing process, for which purpose we use
endless bands covered with powdered glass, emery, or other such substance formed
or adapted in a peculiar manner.
By one method we form the bands of a section corresponding to or approaching
the shape of the part to be finished, and adapt them to ordinary rollers, and by
another method we form the roller or rollers of the said shape corresponding to that
of the part to be finished, and make the bands parallel in section, and we make the
said bands of India-rubber or other flasible material. And in order that our
Invention may be more clearly understood, we proceed to describe the Drawings
accompanying this our Specification.
The first part of our Invention is shewn at Figs. 1 and 2; at 1 is a plate of metal
or other material having saw gates 2, cut through it corresponding to the rough
shape of the soles to be cut out by a band saw or other suitable means, the parts 3
of the said plate therefore representing the timber when severed. The plate so
formed constitutes a template for a series of soles, and it is strengthened by cross
pieces 4, 5, which also act as registers against the edges of the timber. The parts 3
are not uniform in thickness, those marked 3a being intended for heavier soles. The
attendant having adapted the plate to the timber, passes a pencil or other suitable
instrument along the saw gates and thus marks out the whole series for the band

page_text: saw, but in order to economise the timber, the plate may be shifted laterally so as
to use it for the heavier or lighter soles accordingly as they will come in to work up
the whole or as nearly so as possible; and in order to facilitate this, there are holes Ġ
in the plate through which marks previously made may be soen, and the attendant
can therefore adjust the template to mark out a heavy or lighter sole, accordingly
as he sees the quantity of timber left to be used. The slits 7 are simply to enable a
mark to be made to distinguish readily one thickness of sole from another and thus
facilitate the sorting.
The second part of our Invention is shown at Fig. 3 in side elevation, Fig. 4
in plan, Fig. 5 in end view, and Figs. 6, 7, 8, are detached views to be hereafter
referred to; at 10 is the frame of the machine, upon which is a table 11 capable
of sliding by moans of V grooves. To this table is connected a screw 12 situate in a
nut 13, which carries a bevil pinion 14, taking into another 15 upon which there is
a driving pulley 16, its boss being provided with a hollow cone 17, in which is
situate (or in another hollow cone 18 of a pulley 19), a friction cone 20, the arrange-
inent being that which is well known for driving through the medium of either of
the two pullies 16 or 19; at 21 is a lever capable of being turned on a centre 22,
and to this is linked another lever 23 connected to a rod 24, capable of sliding in a
support carried by the table. The table is shewn in its middle position, but supposing
the cutting to be going on, it will be travelling towards the left hand of Fig. 4, to
effect which movement the driving strap will be on the pulley 16, and the cones 20),
17, in gear. At the end of the motion of the table, a part 25 arrives in contact with
a stop 26, which in this case is a spring, and by acting against the lever 23 causes
the lever 21 to turn upon its centre and engage the cones of the pulley 19, which
by running in the contrary direction to that shewn at 16, causes the table to return,
but at a quicker rate than its advance. At 27, 28, are shafts carrying cutters
similar to those described in the Specification of the former Patent aforesaid. The
former of these is carried by a frame 29, which is capable of sliding in V guides 30,
and which is adjustable upward or downward by a pulley handle 31 which carries
a scrow. The other cutter at 28 is mounted in a frame 32, which is adjusted in
position by screws and nuts as at 33. At 34 is a hand lever which by being used
can put the friction cone 20 in the middle position, and then arrest the motion of
the table.
We now proceed to describe that which constitutes the main part of our Invention,
and refer particularly to Figs. 6, 7, 8, the first of which represents a plan view of the
travelling table and other parts, and Fig. 7 and 8, sections thereof, with the soles and
parts which hold them. The table is at 11, upon which is fixed a frame 35 furnished
with two parts 36, 30a, which extend downward, the projecting parts 37, 37, thereof
constituting rests for two roughly cut out soles 38, 38, which are to be operated upon
(see the detached view Fig. 8). The soles thus adapted are situate on each side of a
transverse block 39 of the same shape, but somewhat thinner than the soles, and
mounted loosely in the table. On the other side of each sole is a cross bar 40, 40º,
capable of being pressed towards each other by right and left-handed screws 41,42, the
said cross bars being provided with nuts. The bar shewn at 40 is made differently
from that shewn at 40, it being a loose fitting piece supported in a cradle 43, which
cradle is the part which has the nuts for the screws 42 to work in. The screws 41,
42, are provided with bevil wheels 44, 45, taking into others 46, 47, which are
capable of being turned by a pulley handle 48 through the medium of another pair
of wheels 49, 50, (see also Figs. 3 and 4). The rough cut soles to be operated upon
are placed upon their supports 37, 37°, as shewn at Fig. 8, and the pulley handle 48
is then turned, by which means the screws 41, 42, being also turned, the parts 40,
4a, will be caused to approach each other, and act as clamps for confining the soles
tightly against the bar 39, and they are then ready to be passed between the cutters
27, 28, by the traverse of the table 11, as above described. The part 40 is made,
as before observed, as a loose filling piece; and its side, which is in contact with the
cradle 43, is rounded, as shewn in the Drawings; this is for the purpose of allowing
it to accommodate itself to any want of squareness in the sole. Referring to Fig 3 it

page_text: will be seen that the lower cutter 28 is mounted on a lever 50 capable of turning
in a centre 51; the object of that is to be able to hollow out, if desired, that part
of the sole which is placed downward. For this purpose a template may be placed
on the travelling table to act against a bowl on the said lever 50, and the screws 33
being loosened, the template will cause the cutter 28 to move upward or downward
as desired. The arms of the pulley handle 48 are shewn as jointed; this is for the
purpose of enabling them to turn upward against the cutter cover 27, and by these
means sufficient leverage can be obtained without lengthening the machine.
The third part of our Invention is shewn at Figs. 9, 10, 11, 12, 13, 14, and relates,
as before mentioned, to the hollowing out of the sole, the present object being
to leave a flat or nearly flat part on the middle of the sole. In describing this part
of our Invention we refer particularly to the Specification of the Patent of
John Robinson and John Smith aforesaid, the Drawing to be described being
simplified by certain parts of the said former Specification being removed. Ac-
cording to the former arrangement the cutter was caused to hollow out the sole
across its entire breadth at one traverse of the table, and then the said tablo
returned to its starting position for another sole to be adapted; but according to
our Invention the table carries forward the sole to have one side thereof hollowed;
and then on its return motion (which necessarily takes place), the cutter acts upon
the other side of the sole, the effect of which is that the required hollowing
produces the configuration shewn in the cross section diagram Fig. 9, leaving a slight
ridge 60 along the middle thereof; in the diagram however this ridge is exagerated
in order to clearly shew it; in practice it is no more than the finishing process
takes off, a flat part being left.
We now proceed to describe the mechanical parts through which the above-
mentioned effect is accomplished. At 61 is the table on which the sole G2 is
confined, which table is caused to travel to and fro, as in the former Patent. At
63 is a roller corresponding to the pin 152 of the said former Patont; but in this
instance, it is not situate in a curved slot, but is drawn towards the sole by a weight
acting upon the arms which carry the cutter, governed however by running
alternately along a template 64, 65, 66, and another 64, 67, 66. The former of
these is a fixed plate carried by the table 61; and the latter, although also carried
by the said table, is provided with an axis 68 capable of turning in bearing by
means of using a hand lever 69. The template 64, 67, 66, is shown detached in two
views; at Figs. 13, 14, it consists of a projecting part 70 formed upon a plate 71
which carries the axle 68.
The distance to which the cutter shall descend and ascend, and other parts of the
machine being as before; the operation of our present Invention is as follows:-
As the table 61 moves forward, it moves the part 64 of the template against the
rollers 63, and subsequently the part 65 acts in like manner, thus shifting the
cutter in a similar manner to that effected by the slot 150 of the former machine;
but the said cutter acts on one side of the sole only, viz., that shewn at A, Fig. 9.
The table having arrived at the end of its motion, is caused to travel back, but on
the reversed motion having been affected, the attendant turns the axis 60 by means
of the handle 69, and thus removes the part 70 from that shewn at 64; and the
table 61, then travelling backward, causes the said part 65 to receive the roller 63,
whereby the cutter is caused to act against the side B of the sole (Fig. 9), after
which the parts are restored to the positions shewn ready for operating on another
sole, the effect having been to be hollow out the sole separately on each side, as
shown in the diagram Fig. 9. It will be understood that instead of the arrange-
ment above described, the same effect might be produced by causing the table to
move transversely by means of suitable cams or inclines.
The fourth part of our Invention is shewn at Figs. 15, 16, 17, 18, 19. Fig. 15
represents at a, b, c, d, e, sections of bands we find useful for finishing various
parts of the sole; and Fig. 16 shews how by one method these sections may
be obtained upon a flat travelling surface. At 50 is a plain roller caused to revolve,
as will hereafter be mentioned, or by any suitable means, and upon the periphery

page_text: of this we place the band 6 prepared with glass, emery, or other such material; this
endless band, being then strained over another roller or rollers, becomes a travelling
surface of the required configuration, as shewn at the said Fig. 16; but in order to
impart flexibility to the surface thereof, we form the said band of india-rubber or
other flexible material, and for the purpose of increasing the flexibility we cover
the roller itself with a similar flexible material, as at 81.
Fig. 17 shews the other method we adopt for gaining the object. In this instance
the surface of the roller itself is of the required configuration, and upon it is placed
the flat band d, and when strained thereon, it assumes the form represented at
Fig. 17; and by either of these inethods travelling surfaces of any required curved
forin may be obtained, but in some cases we combine the two by using bands and
pulloys, both with curved surfaces, as at Fig. 17*.
Figs. 18 and 19 shew in side and end views an arrangement of machine in which
bands of the above-described character may be used. At 90 is the frame, and at
91, 92, pullies, from the former of which a driving strap 93 passos to the latter, and
upon the shaft thereof is a roller 100 carrying what we will now suppose to be the
band b of Fig. 16, which band passes over another roller 101, and thus becomes
an endless travelling surface of the required configuration; the Drawing however
for the purpose of simplicity shows a simple flat band. The bearing 94 of the
roller 100 is made so as to be capable of sliding for the purpose of tightening the
band b, or the same result may be obtained by a weighted lever, shewn by dots
at 95; the latter arrangement is preferable, as the band when at work becomes
stretched, and if left in that condition, and kept so by positive means, it is liable to
break upon cooling. At 96 is a table supported in any convenient manner, and
upon which the clog sole may rest while the part to be finished is pressed against
the travelling band b. The end view, Fig. 19, shows the machine as double, that
is, there are two travelling bands b, ba, one on each side, and they may be both the
same, or of differently curved surfaces to operate upon different parts of the solo.
At 97 are the fast and loose driving pullies.
Figs. 20 and 21 shew another arrangement of machine in which the endless bands
may be employed. The bands b in this case also are shewn as flat, but in practice
they are of course of required configuration, as above described; and at 08 is a
roller mounted on a lever 99, which is capable of turning upon a centro 105; and
at 106 is a weighted cord or chain attached to the said lever; and the roller 98 is
therefore drawn forward so as to tighten the finishing band.
Having thus described and ascertained the nature of our said Invention and the
manner in which the same is to be performed, we desire it to be understood that we
claim as secured to us under the above in part recited Letters Patent and for tho
purposes above set forth,―
Firstly. The use of the multiplo stencil plate.
Secondly. The horizontal and clamp arrangement, whereby we are enabled to
operate upon two or more soles at the same time.
Thirdly. Hollowing out the sole by causing the cutter to operate first on one side,
and then on the other side thereof.
Fourthly. The use of endless bands having such irregular sections, as aforesaid,
and adapting them to flat surfaced rollers, or the use of flat bands adapted to rollers
with curved surfaces, or a combination of these two methods.
In witness whereof, I, the said James Salkeld Robinson, have hereunto set
my hand and seal, this Fifteenth day of October, in the year of our Lord
One thousand eight hundred and seventy-seven.
JAMES SALKELD ROBINSON. (LS.)