Improvements in or relating to Machinery or Apparatus for Staking, Softening, and Perching Leather.
Year: 1891

page_text: Date of Application, 23rd May, 1891
Complete Specification Left, 11th Feb., 1892-Accepted, 12th Mar., 1892
PROVISIONAL MITIGATION.
Improvements in or relating to Machinery or Apparatus for Staking,
Softening, and Perching Leather.
We, BENJAMIN WRIGHT and DAVID WRIGHT, of Oxford Works, Meanwood
Road, Leeds, in the County of York, Mechanical Engineers, do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements in machinery or apparatus for staking,
softening, and perching leather; and its object is to produce a simpler and cheaper
machine taking less power to drive it, but at the same time capable of efficiently
performing its work.
According to this invention on a suitable frame or standard, shaped somewhat
like a letter C, is journalled a driving shaft and an intermediate shaft. On the
driving shaft is mounted fast and loose pulleys, a spur wheel, and a disc plate; and
on the intermediate and lower shaft is mounted a second disc plate and a spur
wheel which gears into the spur wheel on the driving shaft. On each of the arms
of the standard is mounted an adjustable slide, that is to say, two horizontal (or
nearly so) slides are fixed to the arms of the standard, one above the other, but at a
suitable distance apart. In the slides are mounted slide blocks to which a recipro-
cating motion is imparted from the herein before mentioned disc plates through
suitable connecting rods and L brackets fulcrummed at their lower ends to the said
slide blocks. At the heels or angles of the L brackets are jointed holders or
carriers to which the staking tool and india rubber roller may be respectively
adjustably or otherwise attached,-that is to say, to the lower bracket and slide
block may be adjustably attached the staking tool, and to the upper bracket and
slide block may be attached (adjustably) the india rubber roller, or vice versa.
In order to obtain as near as possible a horizontal (or nearly so) parallel motion
of the tool and roller whilst at work and at the same time to facilitate their opening
and closing, to each of the said slide blocks is jointed two levers which are connected
at their opposite ends to a double ended lever which may be fixed either on the
same pin or shaft which attaches the tool (or roller) carrier to its L bracket, or
the said double ended lever may be fixed to the tool carrier itself. The requisite
pressure on the tool and roller may be adjusted by a hand wheel and screw, and
springs may be arranged within the tool and roller carriers for compensating
purposes.
A table is also mounted between the two arms of the standard, in which is
provided a recess in which the said tool reciprocates. If required (though not
absolutely necessary) an endless belt, working preferably over four pulleys, may
travel. When an endless belt is employed a suitable opening will require to be
provided to allow of the tool rising and falling.
Dated this Twenty-second day of May 1891.
BENJAMIN WRIGHT.
DAVID WRIGHT.
By W. Fairburn-Hart,
Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to Machinery or Apparatus for Staking,
Softening, and Perching Leather.
We BENJAMIN WRIGHT and DAVID WRIGHT, of Oxford Works, Meanwood
Road, Leeds, in the County of York, Mechanical Engineers, 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:-
This invention relates to improvements in machinery or apparatus for staking, 5
softening and perching leather, and its object, is to produce a simpler and cheaper
machine, taking less power to drive it, but at the same time capable of efficiently
performing its work.
In the drawings,
Fig. 1 is a front elevation, Fig. 2 a side elevation and Fig. 3, a plan looking at 1
the top of a machine constructed according to this invention.
For the sake of clearness the work supporting table is not shown at Figs. 1
and 3.
Like parts in all views are marked with the same letters of reference.
A is the main framework of the machine shaped somewhat like a letter C to which 1
are fixed the pedestals B 131 for reception of the driving shaft C and intermediate
shaft C'. The opposite end of each of these shafts are mounted in the pedestals B², B³
fixed respectively to the standards A' A². Or other bearings may be provided in
or on the framework for the shafts.
On the driving shaft C is mounted fast and loose pulleys D, D', a spur wheel E
and a disc plate and on the intermediate and lower shaft C', is mounted a second
disc plate and a spur wheel El which gears into the spur wheel E on the driving
shaft C.
On or to each of the arms a, al of the main framework A, is cast or fixed the
slide bars G, G, G, G³ in which the blocks g, g¹ reciprocate freely. In the 2
drawings the slide bars are shown, fixed at an incline but parallel to each other and
constructed as follows, the bars G, G³ are shown grooved and cast on or to arms a, a¹
whilst the loose bars G G2, are V'd and adjustably attached to the bars G, G³ by
means of the bolts g², g³.
Although this is a very convenient method of constructing the slide bars we
would have it understood that we do not limit ourselves to this particular method
of construction, as any other convenient one may be employed such as for instance.
all the bars may be bolted to the arms a a' and grooved or V'd or the lower bars G², G*,
may be connected to a treadle (not shown in the drawings) so as to give additional
pressure to the tool to be hereafter described.
A reciprocating motion is imparted simultaneously to the slide blocks g and g¹
from the disc plates F and F through pins fand connecting rods H and H' and
bifurcated brackets I and 11 fulcrumed at their ends and respectively to the
blocks and gl. At the heels and the brackets I and I are jointed the
bifurcated supporting pieces J and J to which the carriers or holders K K' of
the india rubber roller L. and staking or other tool L' are respectively. adjustably
or otherwise attached, that is to say to the lower bracket I and slide block g' may
be adjustably attached the supporting pieces J', of the staking tool L' and to the
upper bracket I and slide blocky may be attached the supporting piece J of the india
rubber roller or vice versa.
.
The india rubber roller L may be adjusted to its work for imparting more or
less pressure to the material as it passes over the tool L' by means of the hand
wheels and screws ', or springs may be arranged within the tool and roller carriers
for compensating purposes.
In order to obtain as near as possible a horizontal (or nearly so) parallel motion
of the tool L' and roller L whilst at work and at the same time to facilitate their

page_text: opening (as shown in dotted lines at Fig. 2) and closing to each of the said slide
blocks 9, g may be jointed at m, m' and m², m³ the levers M M and M², M³ which
are connected at their ends m* m³ and m² m² to double ended levers N and N¹,
which may be fixed either on the same pin or shaft and, which attaches the
tool and roller supporting pieces J and J, to their brackets I and 1', or the said
double ended levers N and N', may be fixed to the tool and roller carriers direct.
A table O armed at O' with india rubber is mounted on legs A³, about midway
between the two arms a, a of the standard A, in which is provided a recess a* in
whi h the said tool L' reciprocates.
13
In the recess a* is arranged to reciprocate a belt P which is supported by the
rollers p, p, p, p³, on the axles p, p, p, p, attached to the bars ³, p³, 10
which are respectively jointed at p p to the framework A. The tension of the
belt P may be adjusted by means of the hand wheel Q and screw Q¹. The ends of
the belts Pare fixed to the reciprocating plate R to form an endless belt in which
is a recess through which the staking tool L' riscs and falls. The plate R is con-
nected to the supporting piece J and tool carrier K' by means of a lever
respectively to the tool holder and plate.
jointed
The reqinsite motion for operating the roller is obtained from any suitable
source through driving pulley D, shaft C, disc F, connecting rod H, bracket I,
slide block levers M, M' and N and for the tool L' from spur wheel E, (on driving
shaft C) to wheel E' on shaft C', disc F¹, connecting rod H', bracket 1', slide
block g', levers M2, M3 and N¹ supporting piece J', tool holder K', lever »¹ belt. P
and plate R.
In the drawings we have shown the tool L'and roller L closed onto the material S
and ready to commence the return stroke in the direction of arrow 1. When the
plate R and belt P, have been drawn to about the full extent of their inward
traverse the connecting rods H, H', by their connection with the discs F, F¹ will
have drawn the blocks, levers M, M1, M2, M³, N, N', and brackets 1, I' into
the position shown by dotted lines at Fig. 2, thereby opening the tool L' and
roller L.
The tool and roller remain in an open position until nearly the end of the outward
stroke is reached when they are closed by the discs and lever connections on to the
material.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
First. The improvements in machinery for staking, softening and perching leather
having means for supporting, reciprocating, opening, and closing the tool and
roller, substantially as described with reference to Figs. 1, 2, and 3.
Second. The application and use of levers M, M', M³, M³, N, N', and brackets I, I',
to slide blocks, and means for reciprocating said blocks, whereby the tool L
and roller L may be reciprocated horizontal and practically parallel with the table
substantially as described with reference to Figs. 1, 2 and 3.
Third. The arrangement, construction and combination of the various parts
forming the machine as a whole, substantially as described and illustrated at
Figs. 1, 2, and 3 of the accompanying drawings.
Dated this Tenth day of February 1892.
BENJAMIN WRIGHT.
DAVID WRIGHT.
By W. Fairburn-Hart,
Agent.