Improvements in Sole Trimming Machines.
Year: 1891

page_text: Date of Application, 12th May, 1891-Accepted, 17th Oct., 1891.
COMPLETE SPECIFICATION.
Improvements in Sole Trimming Machines.
I, AMBROSE STEPHEN VOSE, of Maverick Square (East), Boston in the County
of Suffolk and State of Massachusetts, United States of America, Manufacturer
do hereby declare the nature of my invention and in what inanner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:—
The object of the invention is to provide an adjustable shield or gauge for the
revolving cutter of sole trimming machines. As now ordinarily constructed such
cutters are provided with annular shields or guides attached thereto so as to revolve
therewith. Such guides or shields which are intended to run in the groove
between the sole and the upper of a shoe, are very objectionable, as they some-
times come in contact with the leather of the upper while revolving at a high
In the usual construction also it
speed, thereby injuring and damaging the same.
is extremely difficult to remove the knives of the cutters for the purpose of
adjustment or for sharpening, and they otherwise possess serious defects and
disadvantages.
"In my invention the guide or shield is mounted upon a shaft, in line with, but
separate from the cutter, so that while the said shield may be readily rotated if
desired by the shoe-sole which is in contact therewith, it has no connection with
the cutter and does not revolve therewith, so that there is no danger of injuring the
upper. The shaft carrying the said shield is also adjustable in a pivoted frame,
which may be swung up out of the way so that the knives can be removed from
the cutter without taking the latter out of the machine.
The guide can also be adjusted longitudinally so as to bring it nearer to or
further from the cutter according to the thickness of the sole that is to be operated
upon.
The invention consists in the novel construction and combination of parts
hereinafter fully described and definitely pointed out in the claims.
In the accompanying drawing
Figure 1, is a side elevation of a sole trimming machine constructed in accordance
with my invention;
Figure 2, is a sectional view of a portion of said machine, showing the pivoted
frame and the adjustable shaft carrying the shield or guide.
In the said drawing the reference numeral 1, designates the bed or base of the
machine, adapted to be secured to any suitable support and provided with
bearings 2, 2, in which is journaled the main driving shaft 3, which carries the
revolving cutter 4. The bearings 2, are provided with the usual lubricators 5, and
the shaft has a driving pulley 6. The cutter 4, may be of any ordinary or suitable
construction and is securely fixed or secured to said shaft so as to revolve there-
with. Underneath the cutter is a wheel 7, pivoted in an arm 8, secured to and
projecting from the bed 1. The bottom of the shoe sole rests against this wheel
while the sole is being trimmed.
The numeral 9, designates an arm projecting upwardly above and in front of the
cutter, which arm 9 is at its free end bifurcated forming two arms 10. Through
these arms pass two set screws 12, which engage with and form pivotal bearings
This sleeve
for a sleeve 13, so that the latter is capable of oscillating thereon.
carries a vertical bar 14, the upper end of which is provided with a screw threaded
recess in which works a set screw 15.
This screw is provided with an annular groove 16, with which engages a pin 17,
projecting through a plate 18, secured to the upper end of the sleeve 13. The
sleeve is also provided with a screw threaded recess at its lower end in which is

page_text: also a set screw 19, the end of which engages with the bar 14, and holds it in
place.
To the lower end of bar 14, is secured a plate 20, having downwardly depending
flanges 21 at each side forming ways for the sliding carriage 22, provided with
downwardly depending boxes 23, in which is journaled the shaft 24, carrying at
its inner end the annular shield or guide 25. The carriage 22 is provided with a
longitudinal screw threaded recess in which works a correspondingly threaded
screw rod 26, provided with a milled head 27. This rod also passes under a
plate 28 on the outer end of the plate 20. This plate has downwardly projecting
semicircular flanges 29, which engage between two annular flanges on the screw
rod, and this prevents any horizontal or longitudinal movement thereof, but permits
it to be rotated by means of the milled head.
The shaft 24, and the shield which is secured thereto are capable of being
rotated, and the shield is provided upon its face with recesses to receive the end
of the projecting portions of the cutter which snugly but loosely fit in said recesses.
The shaft 24, is prevented from longitudinal movement by means of the collars 30,
fixed thereon.
Upon the upper side of the arm 9, is a pivoted lever 31, one end of which is
adapted to engage with the pivoted sleeve 13, and prevent it from oscillating. The
other end of the lever forms an operating handle.
Secured to the underside of arm 9, are adjusting screws 32, which may be employed
to regulate the distance of the plate carrying the shield and its connections from
the cutter.
The operation is as follows: The shoe being operated upon, is held with the
bottom of the sole against the wheel 7, and the shield or guide between the upper
and sole. As the driving shaft revolves, it revolves the cutter, without, however,
rotating the guide or shield, thereby preventing any liability of injuring the upper.
The shield is vertically and longitudinally adjustable by the means described, and
when it is desired to remove the knives from the cutters, the frame carrying the
shield and its connections can be swung entirely out of the way, the pivoted sleeve 13
carrying the same, turning upon the pivots 12.
Having thus described my invention what I claim is :
1. In a sole trimming machine, the combination with a driving shaft and a rotary
cutter fixed thereon, of an independent shield or guide located in front of said cutter,
substantially as described.
2. In a sole trimming machine, the combination with a driving shaft and a
rotary cutter fixed thereon, of a vertically and horizontally adjustable shield or
guide located in front of said cutter, substantially as described.
3. In a sole trimming machine the combination with bed or base, a driving shaft
and a rotary cutter fixed on said shaft, of an arm secured to said bed, and projecting
upwardly and in front of said cutter, a frame pivoted in said arm, and a guide or
shield and a shaft connected with said frame, substantially as described.
4. In a sole trimming machine the combination with the bed, a driving shaft and
a rotary cutter secured to said shaft, of an arm secured to said bed and projecting
upwardly and in front of the cutter, a sleeve pivoted in said arm, a rod vertically
movable in said sleeve, a retaining screw passing through said sleeve and engaging
with the rod, a plate secured to the lower end of said bar, having downwardly
depending flanges forming ways or guides, a sliding carriage engaging with said
ways and having a screw threaded recess to receive a correspondingly threaded
adjusting rod, a shaft carried by said carriage and a shield or guide, secured to said
shaft, substantially as described.
5. In a sole trimming machine the combination with the bed, the driving shaft,
the cutter secured to said shaft and the wheel located underneath the cutter, of
the bifurcated arm secured to said bed and projecting above and in front of the
cutter, the set screws passing through the bifurcations, the screws pivoted on said
screws, and having a retaining screw near its lower end, the vertically removable

page_text: bar working in said sleeve and provided with an adjusting screw, the plate secured
to the lower end of said bar, having depending flanges forming ways or guides,
the carriage sliding on said ways and provided with a screw threaded adjusting
rod, the boxes depending from said carriage, the shaft journaled therein, the shield
or guide carried by said shaft, the adjusting screws carried by an arm secured to
the lower side of the arm secured to the bed and a lever pivoted to the upper
side of said last mentioned arm, substantially as described.
Dated this 12th day of May 1891.
HUGHES, ELI & HUGHES,
76, Chancery Lane, London, W.C., Agents for the Applicant.