Improvements in or relating to Slugging and analogous Machines used principally in the Manufacture of Boots and Shoes.
Year: 1898

page_text: Date of Application, 20th Dec., 1898
Complete Specification Left, 20th Sept., 1899-Accepted, 28th Oct., 1899
Improvements in or relating to Slugging and analogous Machines
used principally in the Manufacture of Boots and Shoes.
We, THOMAS BRIGGS, of 71, Wand Street, Belgrave Road, Leicester, Mechanic,
and PEARSON AND BENNION, LIMITED, of the Union Works, Belgrave Road,
Leicester, Boot and Shoe Engineers, do hereby declare the nature of this inven-
tion to be as follows:
-
This invention consists of improvements in or relating to slugging and analo-
gous machines used principally in the manufacture of boots and shoes and is
described as applied to slugging and analogous machines of the well-known
"Gare" type.
The invention relates particularly to the means whereby the usual horn cam
and lever and intermediate mechanism hereinafter described may automatically
so act as to allow the horn or other support which holds the object under opera-
tion up to the presser foot, to adjust itself to varying thicknesses of material.
For this purpose there may be suitably connected to the usual cam lever and
depending therefrom a rod whose lower end may have an adjustable screw
threaded connection with the upper part of an automatic drop device, consisting
of a frame or the like of suitable shape having on its bottom plate a flange or
disc faced with leather or equivalent. The said frame, whose bottom plate and
flange and facing thereto surround a tube or bush, is elevated through the
action of the cam and lever before mentioned and depressed through the medium
of a spring attached to the end of the said lever.
The tube or bush mentioned rests upon a projection formed on or otherwise
attached to the body of the machine. Connected to the usual foot or shaft lever
is a rod passing upward through the said projection and tube or bush just
mentioned, its upper end provided with a quick screw cut or otherwise formed
thereon to receive a conical or other suitably shaped nut, having a free move-
ment thereon, the bottom being faced with leather or equivalent to engage the
face of the flange or disc before mentioned.
It will be readily seen therefore, that whatever the thickness, within reason-
able limits of the material being operated upon, as the conical nut rests freely
upon the top of the tube or bush, the rising of the rod with the threaded top
as before described simply turns the nut more or less without elevating it. The
drop of the horn lever and the parts carried thereby is always the same however,
and when through the medium of the cam and lever the automatic drop mecha-
nism is raised, the faced disc on the bottom plate frictionally engages the leather
faced bottom of the nut to prevent it turning and thus elevates the rod and conse-
quently depresses the horn or other support to allow the object or material under
operation the necessary freedom for the feeding operation.
It will of course be understood that modifications may be made in respect of

page_text: the conical nut and threaded rod before described, such for instance, as pivotting
to the top of the said rod, (in place of the thread) a lever or levers, arranged to
contract with the rising of the said rod and expand with the lowering of same
the said lever or levers yet being free to rest upon the top of the tube or bush
in the manner described in reference to the said nut.
THOMAS BRIGGS.
PEARSON & BENNION, LIMITED.
For the Company.
MARSHALL, HENRY PEARSON,
Director.
Improvements in or relating to Slugging and analogous Machines
used principally in the Manufacture of Boots and Shoes.
We, THOMAS BRIGGS, of 71, Wand Street, Belgrave Road, Leicester, Mechanic,
and PEARSON AND BENNION, LIMITED, of the Union Works, Belgrave Road;
Leicester, Boot and Shoe Engineers, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement; -
This invention consists of improvements in or relating to slugging and analo-
gous machines used principally in the manufacture of boots and shoes and is
described as applied to slugging and analogous machines of the well-known
"Gare" type.
The invention relates particularly to the means whereby the usual horn cam
and horn shaft lever and mechanism intermediate thereof hereinafter described
may automatically act so as to allow the horn or other support which holds the
object under operation up to the presser foot, to adjust itself to varying thick-
nesses of material. For this purpose there may be suitably connected to the
usual horn cam lever and depending therefrom a rod whose lower end may have
an adjustable screw threaded connection with the upper part of an automatic
drop device, the latter consisting of a frame or the like of suitable shape having
on its bottom plate a flange or disc faced with leather or equivalent.
The said frame whose bottom plate and flange and facing thereto surround a
tube or bush, is elevated through the action of the horn cam and lever before
mentioned and depressed through the medium of a spring or springs. The tube
or bush mentioned rests in and upon a projection formed on or otherwise attached
to the body of the machine. Connected to the usual foot or horn shaft lever is
a rod passing upward through the said projection and tube or bush just men-
tioned, its upper end provided with a quick screw cut or otherwise formed thereon
to receive a conical or other suitably shaped nut, having a free movement, the
bottom being faced with leather or equivalent to engage the face of the flange
or disc before mentioned.
It will be readily seen therefore that whatever the thickness within reason-
able limits, of the material being operated upon, as the conical nut rests freely

page_text: upon the top of the tube or bush, the raising of the rod with the threaded top
as before described simply turns the nut more or less.
The drop of the horn cam lever and the parts carried thereby is always the
same however, and when through the medium of the said cam and lever the auto-
matic drop mechanism is raised, the faced disc on the bottom plate frictionally
engages the leather faced bottom of the nut to prevent it turning and thus ele-
vates the rod and consequently depresses the horn or other support to allow the
object or material under operation the necessary freedom for the feeding opera-
tion.
In order that our invention may be clearly understood we describe the same
with reference to the accompanying drawing in which like letters of reference
indicate like parts throughout the several figures.
Figure 1 is a side elevation of a slugging or analogous machine, showing the
usual horn or jack shaft, lever, vertical rod and the usual cam lever and our
improved mechanism constituting an adjustable automatic connection.
Figure 2 is a detached rear view, partly in section and drawn to an enlarged
scale of the mechanism comprising this invention showing the vertical rod free
to adapt itself to varying thicknesses of work as hereinafter described.
Figure 3 is a view similar to Figure 2 but showing the mechanism in its
"closed" position and the vertical rod "held."
a is the driving shaft, b the horn or jack cam, c the cam lever, d d the vertical
rod, e the horn or jack shaft lever and f the vertical shaft, all of which said
parts are usual in this class of machine.
As it is necessary that a loose connection should be formed between the horn
(or jack) and its cam on the driving shaft to provide for varying or various
thicknesses of work as before stated the said vertical rod is formed in two
parts d das heretofore.
The upper part d is screw threaded and engages the top of a frame or body G.
The said frame G is preferably enlarged or widened at its bottom end and a
flange or disc G₁ is attached to the bottom plate G2 by bolts G³; or the said
flange or disc may be formed integrally with the frame G.
A tube or bush H having its bottom end driven or otherwise fixed in the pro-
jection on the frame of the machine passes upward through the bottom of the
frame G to such an extent that a conical nut J normally rests thereon.
The bottom of the said nut J and the top of the flange or disc G¹ are pro-
vided preferably with leather facings J¹ G respectively so as to form good fric-
tional surfaces. The said leather facings are secured to their respective parts
by screws or in any other suitable way.
Or instead of the said facings J1 G₁ any other device may be employed for
preventing the rotation of the nut J, such for instance as forming corresponding
grooves and projections on the said faces.
The upper end of the lower part d' of the vertical rod is formed with a quick
thread and passes upward through the nut J which is threaded to receive it."
A sleeve or boss K which acts as a guide to the upper part of the rod d may
be fixed in position in the frame G by pins K' or the said sleeve or boss K may
be formed integrally with the said frame G.
When the work is placed in position between the horn or jack and the presser
foot, or as the work varies as it is being fed and the horn or jack shaft rises or
falls to suit such variation, the rod d' will fall or rise correspondingly by rotating
the said nut J.
This adjustment of the rod however, only takes place when the lever C is in
its lower position for as the cam 6 revolves and gets to the position shown in
Figure 3, the face G' of the flange or disc G¹ engages the face J1 of the said
nut J and forms a temporary solid connection. Immediately the cam 6 passes
the roller c¹ on the lever c the springs L L will act upon the frame or body G
and break the contact between the faces G' and J¹ when the rod d will again be
free for adjustment.

page_text: The tube or bush H before mentioned is provided with a flange or collar H¹
which may be soldered or otherwise attached thereto as shown in Figures 2
and 3 or formed solid therewith.
Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed, we declare that what
we claim is:-
In slugging and analogous machines, the employment of an automatic adjust-
able connection between the cam lever c and shaft lever e consisting of a frame
or body G provided with a faced surface G+ adapted to engage the lower face J
of a nut J which normally rests upon the upper face of a tube or equivalent H
the said nut being free to rotate as the rod is raised or lowered by varying
thicknesses of material, the said face G+ being adapted to grip and hold the
face J of the nut J, on the cam lever c being raised and to release the nut when
the said cam lever c is lowered substantially as and for the purpose described
and illustrated in the accompanying drawing.
Dated this 18th day of Santambar 1000