Improvements in Machines for Trimming Boot Soles and similar articles.
Year: 1892

page_text: Date of Application, 27th Dec., 1892-Accepted, 28th Jan., 1893
COMPLETE SPECIFICATION.
Improvements in Machines for Trimming Boot Soles and similar
articles.
I REGINALD HADDAN, Patent Agent of the firm of Herbert Haddan & Co. of
18 Buckingham Street Strand W.C. London do hereby declare the nature of this
invention a communication to me from abroad by Jacob Rookhart Scott of
186 Grand Street New York in the United States of America 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 a machine for reducing the thickness of the edge of a
sole for boots and shoes or of another article of a similar nature.
The peculiar and novel construction of this machine is pointed out in the
following Specification and claims and illustrated in the accompanying drawing in
which
Figure 1 is a front view.
Figure 2 is a side elevation looking in the direction of arrow 1 in Fig. 1.
Figure 3 is a horizontal section in the plane xx. Fig. 2.
Figure 4 is a perspective view of the bracket which carries the knife and the
gage.
Figure 5 is a perspective view of the arm which carries said bracket.
In this drawing the letter A designates a frame or standard which forms the
bearings for a shaft B and on which is firmly secured the arm D and to this arm is
adjustably secured the bracket E which carries the knife F and the side gage G.
Both the knife and the side gage are secured to the bracket by set screws which
may pass through slots in the bracket to facilitate the operation of adjustment. On
the shaft B is mounted the edge gage H which is made in the form of a small
circular drum with a smooth surface and the shaft B is exposed to the action of a
spring a which has a tendency to hold the front face of the edge gage H in close
proximity to the knife and the side gage but which permits said shaft to recede in
case any portion of the leather or any other obstruction should find its way
between the front face of the edge gage and the inner faces of the knife and of the
side gage.
I is the feed roller which is firmly mounted upon a vertical shaft or arbor J
mounted in a slide K which is guided in boxes L M secured to the standard A.
The box L is provided with a slot 6 through which extends a pin c which is
firmly secured in a slide K, and engages the vertical arm d of a bell crank lever de
the horizontal arme of which connects by a rod f with a treadle T. The box M is
provided with a slot g, through which extends a pin h which is firmly secured in
the slide K, and in the box M is secured a set screw i which is in the path of the
pin h so that the throw of the slide K can be adjusted. The treadle T is exposed
to the action of a spring S the tension of which can be adjusted by a nut k and
when the treadle is permitted to follow the action of this spring, the slide K is
carried forward until the pin h strikes the set screw i. When the treadle is
depressed, the slide is moved backward so as to increase the distance between the
feed roller I and the knife F. The vertical arbor J is geared with a horizontal
shaft N which has its bearings in the standard A and which is geared with the
main shaft B by cog wheels I'm as shown in Figs. 1 and 2. so that when the shaft B
is set in motion, such motion will be transmitted to the feed roller I. For the
purpose of gearing the arbor J with the shaft N I use a worm wheel n and worm
screw o as shown in Figs. 1 and 3 so that the movement of the slide K will not
disturb the action of the gearing.
From the front end of the slide K extends an arm p which carries a guard q

page_text: 2
(Figs. 1 and 3) to prevent the material to be trimmed from catching between the
edge gage H and the feed roller I. The side gage G is provided at its bottom end
with a lip (Figs. 3 and 4) which serves to keep the point of the knife out of
contact with the material to be trimmed so that if my machine is used for trimming
soles which are attached. to the uppers of boots or shoes, the knife is prevented from
injuring the upper. The feed roller I. is made in the form of an inverted truncated
cone, the bevel of which determines the quantity of the material which is cut off
by the knife. The cutting edge of the knife is situated opposite the centre of the
feed roller,
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed I declare that what I
claim is
1. A sole trimming machine, consisting of the following elements to wit; the
upper rotary shaft B having an attached circular gage H, the periphery of which
bears against the edge of the sole to be trimmed, the rotary shaft J arranged
approximately at right angles to the upper shaft and having the attached feed
roller I provided with a bevelled face which bears against the side of the sole and
a stationary side gage G and a stationary knife F both located in front of and in
juxtaposition to the circular gage, substantially as described.
2. The combination with a rotary edge gage H mounted on the shaft B. and with
the stationary side gage G and the stationary knife F of the spring actuated
slide K, the arbor J carried by the slide and arranged approximately at right
angles to said gage carrying shaft, the feed roller I mounted on this arbor, the
shaft N geared with the arbor J and with the shaft B, the treadle T and suitable
connections between the treadle and the slide, substantially as described.
3. The combination with the rotary edge gage H mounted on the shaft B and
with the stationary side gage G and the stationary knife F, of the spring actuated
slide K, the arbor J carried by the slide and arranged approximately at right
angles to the gage carrying shaft, the feed roller I and the worm wheel 'n mounted
on this arbor, the shaft N the worm screw o mounted on this shaft and gearing into
the worm wheel n, the treadle T and suitable connections between the treadle and
the slide substantially as described.
4. The combination with the rotary edge gage H mounted on the shaft B and with
the side gage G and the knife F, of the spring actuated slide K means for adjusting
the throw of the slide and arranged approximately at right angles to the gage
carrying shaft, the arbor J carried by the slide, the feed roller I mounted on this
arbor, the shaft N geared with the arbor J and the shaft B, the treadle T and
suitable connections between the treadle and the slide substantially as described.
5: The combination with the rotary edge gage H mounted on the shaft B and
with the stationary side gage G and stationary knife F of the elide K, the arbor J.
carried by the slide and arranged approximately at right angles to the gage carrying
shaft, the feed roller I mounted on the arbor, the guard q carried by said slide, the
shaft N geared with the arbor J and with the shaft B and means for actuating the
slide substantially as described.
6. The combination with the rotary edge gage H and the bevel faced rotary
feed roller I mounted respectively on independent shafts which are arranged
approximately at right angles to each other, of the stationary knife F, the
stationary side gage G and the lip r formed on said side gage substantially as
described.