Improvements in or relating to Driving Gear for Sole Sewing and other Sewing Machines.
Year: 1895

page_text: Date of Application, 27th Apr., 1895
Complete Specification Left, 27th Jan., 1896-Accepted, 14th Mar., 1896
PROVISIONAL SPECIFICATION.
Improvements in or relating to Driving Gear for Sole Sewing and
other Sewing Machines.
I, FREDERICK WILLIAM FARR, of 16 Mentmore Terrace, London Fields,
London, in the County of Middlesex, Boot and Shoe Manufacturer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to improvements in or connected with the driving gear of
sole sewing and other sewing machines; and its object is to impart an intermittent
rotary, or other, motion to the whirl, or other moving part of a sewing machine
from the driving shaft or other rotating part of the machine having a uniform and
continuous motion by the means hereafter described.
According to this invention on, say, the driving shaft, or other rotating part, of
the machine is mounted and fixed a circular plate or disc. On, say, about one half
(more or less) of the periphery of the disc is cut, or otherwise formed, any desired
number of teeth, say spur teeth of any suitable and convenient pitch. At, say,
each end of the spur, or other, teeth may be provided in the periphery of the disc
a recess of any suitable length and depth. In some cases only one tooth may be
used, but I prefer to use more than one. On the face or plate portion of the disc
may be provided and fixed, say, two pins or pegs at a convenient distance apart
from each other as well as from the centre of the disc. The teeth, or tooth, of the
herein described disc is or are arranged to gear or mesh with a number of teeth or
recesses provided or formed in the periphery of a second disc or circular plate
mounted on a counter shaft or other part of the machine.. The second disc may be
enialler, though not necessarily so, in diameter than the first named disc. The
teeth or recesses of the second disc are only cut or formed in a portion of its
periphery, and between the two ends of the teeth, or between each tooth or recess
a portion of the periphery is removed to form a concave recess into which the plain
portion of the periphery of the first named dise passes and rotates when the teeth
are not in gear for preventing the second disc rotating except when its teeth or
recesses are geared or meshed with those of the first named disc. To the face or
plate portion of the second disc may, if desired, be fixed by any suitable and
convenient means a tappit piece arranged to project beyond the periphery of the
disc and to come in contact with one of the herein before mentioned pins or pegs,
provided on or fixed to the face of the first disc whenever it is required to throw
the teeth of the two discs into gear with each other.
By the above described means an intermittent rotary motion may be imparted to
the whirl of a sole sewing machine such motion being transmitted from the counter
shaft, on which the second disc is mounted through the usual arrangement of
gearing and shafts.
The above described means are particularly applicable to the machines described
and illustrated in my Patent Specification No. 4455 of 1894; and they may also
be applied to and combined with the parts of other sewing machines requiring an
intermittent motion imparting thereto.
Dated the Twenty-seventh day of April 1895.
FREDERICK WILLIAM FARR,
By W. Fairburn-Hart,
Agent.

page_text: 1
Improvements in or relating to Driving Gear for Sole Sewing and
other Sewing Machines.
:
I, FREDERICK WILLIAM FARR, of 16 Mentmore Terrace, London Fields,
London, in the County of Middlesex, Boot and Shoe Manufacturer, 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 has reference to improvements in sewing machines, but it is
particularly applicable to that employed for sewing the soles on to boots and shoes,
but may also be used in connection with other sewing machines. And though the
object of this invention relates principally to improvements in or connected with
the driving gear of sole sewing machines, whereby an intermittent rotary motion is
imparted to the whirl of such machines, yet it may be applied for imparting &
rotary or other motion to other moving parts of a sole sewing or other sewing
machine from the driving shaft or other rotating part of the machine having a
uniform and continuous motion.
of
In the drawings:-
Figs. 1, 3, and 6 are elevations, and Figs. 2 and 4 are a plan and sectional plan
gear for imparting the required intermittent rotary motion to the whirl or other
part of the sewing machine.
Fig. 6 is a part elevation of the head of a sole sewing machine, showing some of
the principal parts with one arrangement of the driving gear applied.
According to this invention on, say, the driving shaft A or other rotating part of
a Blake sole sewing or other type of sewing machine is mounted and fixed a circular
plate or disc B.
In or on about one half (more or less) say of the periphery of the disc is cut, or
otherwise formed, any desired number of teeth b, say spur teeth of any suitable and
convenient pitch. At, say, each end of the teeth & may be provided, in the periphery
of the disc B a recess as at Fig. 1 of any suitable length and depth, or to
communicate with a groove 62 as at Fig. 3. In some cases only one tooth 6 may
be used as at Fig. 5, but I prefer to use more than one. On the face or plate
portion of the disc B may be provided and fixed, say, two pins or pegs b at a
convenient distance apart from each other as well as from the centre of the disc.
At Fig. 3 in place of the pins & I employ a spring pin 63 and a spring catch hook 6*
arranged within the groove 6' as shown. The teeth or tooth of the herein described
dise B is or are arranged to gear or mesh with a number of teeth or recesses a
provided or formed in the periphery of a second disc or circular plate (mounted
on the counter shaft D or other part of the machine. The second disc C may be
smaller, though not necessarily so, in diameter than the first named disc. The
teeth or recesses c of the second disc C are only out or formed in a portion of its
periphery, and between the two ends of the teeth as at Fig. 1, or between each
tooth or recess as at Fig. 5, a portion of the periphery is removed, see Figs. 1 and 5,
to form a concave recess c¹ of or about the same radius as the circumference of the
dise B, into which the plain portion of the periphery of the first named disc
passes and rotates when the teeth are not in gear which prevents the second
disc rotating, except when its teeth or recesses are geared or meshed as shown
in the drawings with those of the first named disc. To the face or plate portion
of the second disc C is fixed by any suitable and convenient means, or mounted on
the counter shaft a tappit piece E, armed if desired at Fig. 3 with a runner or
pine arranged to project beyond the periphery of the disc and to come in contact
with one of the herein before mentioned pins or pegs 63 on the first disc, whenever

page_text: it is required to throw the teeth of the two discs again into gear with each
other.
At Fig. 3 the runner e enters the recess b¹, depresses the spring pin 63 and travels
in the concentric groove 6 until it comes in contact with the spring hook 64 which
arrests its rotation and brings the teeth b and c again into gear when the runner e
as the wheels rotate passes out of the recess 6. But at Fig. 5 the wheel C is
provided with a number of recesses c and each time the tooth b comes round and
meshes with a recess c the wheel is partially rotated.
The concave portions being about the same radius as the ciroumference of the
disc B prevent the disc C from rotating except when the tooth or teeth is or are
meshed.
By the above described means an intermittent rotary motion may be imparted to
the whirl of a sole sewing machine, such motion being transmitted from the counter
shaft, on which the second disc is mounted, through the usual arrangement of
gearing and shafts.
By the above described means the use of springs, catches, friction brakes and
clutches, and other means for preventing the rebound of the counter shaft, is
dispensed with.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. A sole sewing or other sewing machine, substantially such as herein described
and illustrated, the application and combination of the mutilated gear substantially
such as herein described and illustrated for imparting an intermittent rotary motion
to the whirl or other moving part of the machine, from the driving shaft or other
rotating part having a uniform and continuous motion as set forth.
2. In a sole sewing or other sewing machine the combination of driving shaft A
having a disc B mounted thereon, said disc having teeth band recesses 6¹ formed
respectively in and around its periphery or face and armed with pins b³ and spring
hook 6 with a diso C mounted on a counter shaft D and having teeth c and concave
receases e arranged in or around its periphery and armed with a tappit piece E
arranged to engage with the pins of the disc D whenever it is required to bring the
teeth of the two discs into gear for the purposes herein set forth.
Dated this Twenty-fourth day of January 1896.
FREDERICK WILLIAM FARR.