IMPROVEMENTS IN MACHINES FOR SCOURING AND OTHERWISE TREATING OR WORKING HIDES, SKINS, OR LEATHER Communicated to him from ab by.
Year: 1882

page_text: LETTERS PATENT to William Robert Lake, of the firm of Haseltine, Lake,
1
and Co., Patent Agents Southampton Buildings, London, for an Invention of
"IMPROVEMENTS IN MACHINES FOR SCOURING AND OTHERWISE TREATING OR
WORKING HIDES, SKINS, OR LEATHER Communicated to him from abroad
by Charles Holmes of Boston Massachusetts, United States of America.
"
COMPLETE SPECIFICATION filed by the said William Robert Lake at the
Office of the Commissioners of Patents, on the 7th. October 1882. :
13
WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, & Co,, Patent Agents,
Southampton Buildings, London, "IMPROVEMENTS IN MACHINES FOR SCOURING
AND OTHERWISE TREATING OR WORKING HIDES, SKINS, OR LEATHER Communi-
cated to me from abroad by Charles Holmes, of Boston, Massachusetts, United
States of America,
This Invention relates to improvements in machines for, treating hides or skins
in the manufacture of leather, and for scouring, and otherwise treating leather.
In the accompanying drawings,
Figure 1 is a front elevation of a machine constructed according to this
invention.
Figure 2 is a plan of the same.
Figure 3 is a vertical section on the line. x, x, Figure 2.
Figure 4 is a vertical section on the line y, y, Figure 2, illustrating details of
construction to which reference is hereinafter made.
Figure 5 is a plan shewing a modification in the construction of part of the said
machine.
Figure 6 is a vertical longitudinal section of the same.
Figure 7 is a vertical transverse section on the line z, z, Figure 5.
The head A is arranged to be reciprocated upon the horizontal and parallel ways
or supports a, a, by a crank not shown, and a connecting rod or pitman B. This
connecting rod or pitman is pivoted at 6 to the head A, and the end 6' extends
beyond the pivot, and as the said head is reciprocated, the said end and the
portion 62 of the pitman are alternately, raised and lowered. The oscillating
[Price Gd1

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movement of this portion of the connecting rod or pitman in relation to the
centre bis utilized for the purpose of alternately lifting the tools from and
allowing them to bear upon the work, according to the direction of movement
of the head A.
The tool-carriers D, D', are pivoted or hinged at the points d, d, to the head A,
and the tool-carrier lifting rods d', d, which are attached to the tool carriers, are
provided with buffers d', d', adjustably secured to the said rods above the pitman,
as represented in Figure 3, the said buffers act as stops or abutments with which
the pitman B is alternately brought in contact as it oscillates, thereby alternately
lifting the said tool-carriers.
'
The upper ends of the lifting rods d), d, are preferably provided with the blocks
E, E, which are hinged or connected together by the long arm or link o in Figures
1, 2, 3, its ends e', e, being pivoted to the said blocks. The lifting rods d', d³,
are preferably screw-threaded so that their position in relation to the blocks E, E',
can be adjusted by the nuts c³.
The tools are preferably held to their work by the tension of the spiral springs
F, F, which at their lower ends are connected with the tool-carriers, and at their
upper ends to the rods ƒ ƒ', which are secured to the arm or link o by the nuts f³,
as shown in Figure 3. This construction and combination of springs, tool-carriers,
lifting rods, oscillating rod or pitman and connecting arm or link, gives and permits
a uniform and equal pressure upon the tool-carriers, and consequently upon the
tools throughout every reciprocation or stroke.
•
The machine is also provided with means whereby the tools may be lifted from
the work while the head is reciprocating, and arranged to be operated by a handle
that does not reciprocate with the said head. One method of accomplishing this.
is shown in Figures 1, 2, 3, and 4. The slide-bars or latches H, H', are adapted to
be moved upon the upper plate of the cross-head A, and beneath the link or arm o,
in such a manner that they can be interposed between the link and the upper
plate of the cross-head to hold the said link, and therefore the tool, in an elevated
position. In order to operate these slide-bars I use two pairs of rods G, G¹, and
G2, G. These rods are supported at their ends by the swinging arms g, gỗ, which
are pivoted at g to any suitable stationary part of the machine. The pair of
arms G, G, is longer than the other pair in order that it may have a different
lovel.
Upon each of the inner rods G', G³, there is arranged a slide 9, and one of these
slides is connected by means of a rod g with the latch or slide-bar H, and the
other slide g by means of a similar connecting rod g is connected with the latch
or slide-bar H. In operating these latches or slide-bars, it is simply necessary
at the proper moment (which is at or near the end of a forward stroke of one
tool), to move thic pair of rods connected with the slide-bar to be operated inwardly,
thereby moving the said slide-bar under the arm or link e; to place the tool upon
the work it is simply necessary to move the rods outwardly from the head. Each
pair of rods, with their connecting mechanism and slide-bars, is independent of tlic
other, but they are exactly alike in construction with the exception, above stated,
that one set is lower than the other, and this is for the convenience of the operator
in order that he may know which pair of rods to move for operating a given
slide. Each of the slides g, it will be observed, reciprocates or moves on its
respective rod G¹; G³.
Another method is shown in Figures 5, 6, and 7, in which rods m extend across
the machine between the brackets m', m', to these cross-rods the longitudinal
rods M, M, are pivoted. The rods M, M³, do not reciprocate with the head, but
have simply a swinging movement at the points where, they are attached to the
cross-rods m. A handle N is connected with the rod M by means of the rod n, and
with the rod M by means of the rod n.
Upon the head of the machine and arranged to reciprocate with it are the
sliding rods O, O'. Each of these sliding rods consists preferably of two parts
connected with each other at their ends, and arranged-to have a lateral movement

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in their supporting brackets, o, o, which project upwardly from the head of the
machine.
The sliding rod O is connected with the rod M by means of the small arms or
guide-pins which project upwardly, and the sliding rod O has a similar
connection with the other rod M¹.
J.
Each sliding rod carries a latch P which is preferably adapted to slide laterally
upon one of the arms thereof against the stress of a spiral spring upon either side,
which tends to keep. it in a given position on the said sliding rod.
These latches are so arranged that upon the lateral movement of the sliding rods,
their horizontal parts are adapted to be inoved under the tool-rod links R, Figure 6, or
under the tool-rod links e Figures 1, 2, and 3. The said latches cannot be moved
except at certain positions of the links R, that is to say, when the said links are in
their upward movement, it is thus desirable that the latches should, close very
quickly. In this respect the construction here shown is superior to that first above
described, and it is for this reason that I have used the springs upon the sliding
rods, as the movement of the sliding rods in either direction will cause the spring
compressed by its movement to exert its power in forcing back or returning the
latches to the position which they have on the sliding rod, which position, however,
is not their normal one in relation to the links R.
:
It follows, therefore, that upon the movement of the sliding rods the latches, when
the tool-rod levers or links, are lifted sufficiently, are closed by the springs
automatically under the said links and held there, and consequently the tools are
held up until the latches are withdrawn when they are returned to their normal
position, and this is accomplished without stopping the machine.
It is obvious that the latches can be rigidly secured to the sliding rods, if. desired;
in which case the springs would not be used.
{
To operate the latches to cause both tools, to be held from the work, the handle N,
is drawn outwardly, thereby moving the connecting rods n, n', and drawing the
sliding rods toward the front of the machine, and causing the springs behind the
latches to press upon them with a force sufficient to move them under the links at
the proper instant.
Or, if it is desired that only one of the tools should be held up, either latch may
be actuated independently of the other by drawing out the end of the handle
which is connected with such, latch.
It is not necessary that the sliding rods should be constructed exactly as
described, as one bar or rod in lieu of two can be employed, the essential element
of both constructions herein described being a handle which does not reciprocate
with the head. The latches and connecting mechanism described permit a
reciprocating movement of the head and latches in relation to the handle, while at
the same time the said handle is always in position to transmit the movement to
the latch or latches.
It is preferable that each latch should be notched or provided with a recess in its
upper surface, into which the link attached to the tool-supporting rod descends, and
which recessed portion is moved from beneath the link, when it is desired to lift
the tool from the work to allow the higher part of-the latch to occupy the position
it had under the said link. The said link may be made in one piece or in two
parts as shown in Figures 5 and 6.
In operation the hide or skin is laid upon the table which preferably is mounted
upon rolls in a manner to have universal movement in a horizontal plane beneath
the head A, the machine being set in motion the tools are applied to the skin or
hide according to the direction of the movement of the said hide.
Having thus fully described the said invention as communicated to me by my
foreign Correspondent and the manner of performing the same I wish it understood
that I claim,
First. The combination of the reciprocating tool-carriers D, D¹, the lifting rods
d', d², their connecting arm or link e, the spiral springs F, F', the buffers or stops

page_text: d³, d, and the pivoted oscillating rod B, all substantially as described and for the
purposes specified.
Second. The combination of the tool-carriers D, D', means for lifting thein
alternately, and the spiral springs F,, F', all substantially as, and for the purposes,
described.
Third. The combination of the reciprocating tool-carriers, the lifting rods d², d²,
the stops d³, d, the oscillating connecting rod B and the arm or link or links R,
all arranged to operate substantially as, and for the purposes, described.
Fourth. The combination of the alternately operating reciprocating tools, the
tool-carriers, means for lifting the said tool-carriers alternately from the work,
springs operating to hold each tool to its work and acting independently of each.
other, and means for holding one tool from the work while the other is operated,
all substantially as, and for the purposes, set forth.
Fifth. The combination of latches or slide-bars for holding the tool-carriers from
the work; and mechanism for moving the same adapted to be operated by one or
inore bandles not reciprocated with the said latches, all substantially as, and for the
purposes, set forth.
Sixth. The combination of the reciprocating head, the sliding rods 0,01, the tool-
rod link or links, the bars M, M, and the handle N for moving the said bars, all
substantially ns, and for the purposes, set forth.
Seventh. The combination of latches or slide-bars for holding the tools from.
the work, supported by and reciprocated with the head of the machine, the non-
reciprocating handle or handles for moving the said latches, and intermediate
mechanism for connecting the said handle or handles with the said latches or
slide bars, all substantially as, and for the purposes, set forth.
Eighth. The combination of the latches or slide-bars for holding the tool-
carriers from the work supported by and reciprocated with the head of the
machino, the non-reciprocating handle or bandles for operating the said latches, and
the interposed springs adapted to be compressed by the movement of the handle,
and to move the said latches or slide-bars, all substantially as, and for the purposes,
set forth.
Ninth. The combination of the screw-nut, or block upon the tool-lifting rod,
and the link or arm pivoted to the said nut and to the head or a nut on the
opposite tool-lifting rod, all substantially as described.
Tonth. The notched latch or slide-bar, in combination with the link or arm e or
links Rpivoted to the tool-lifting rod, as, and for the purposes, specified.
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In witness whereof I the said William Robert Lake have hereunto set my
hand and seal this Seventh day of October in the year of our Lord One
thousand eight hundred and oighty two.
JUM: PORT LA 12 12