Improvements in Implements for Shearing Wool, Hair, and the like.
Year: 1898

page_text: Date of Application, 20th Dec., 1898-Accepted, 4th Feb., 1899
COMPLETE SPECIFICATION.
Improvements in Implements for Shearing Wool, Hair, and the like.
I, WILLARD REED GREEN, residing at No. 1325, Gilpin Street, in the City of
Denver, County of Arapahoe and State of Colorado, U.S.A., Engineer, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed to be particularly described and ascertained in and by the following state-
ment:-
My invention relates to implements for shearing wool, hair and the like, and
to an improved construction and manner of driving such implements.
My improvements consist in adapting such devices to be driven either by an
independent power or to be driven as well as directed by an operator and in various
features of a constructive and operative nature, hereinafter fully set forth and
explained in connection with the drawings forming a part of this specification.
The object of my invention is to provide a shearing implement of a durable and
simple form convenient in use and capable of being operated with or without
independent motive power.
Referring to the drawings:
Fig. 1 is a side view of a shearing implement constructed and operating according
to my invention, the front side of the enclosing case being removed.
Fig. 2 is a plan view of Fig. 1 with the top part of the casing removed.
Fig. 3 is an end view in front of the shearing or cutting knives and devices to
support the same.
Fig. 4 is a horizontal section through the main driving gear wheel and the
driving mechanism therefor.
Fig. 5 is a side elevation of the implement to a smaller scale and the driving
gearing therefor.
Fig. 6 is a diagram showing the manner of applying a driving cord.
The supporting frame or casing 1, is made integral except the top part, 2,
which is removable to gain access to the operating parts and is held by the
studs, 3, in front and a revoluble clip, 4, at the rear.
The cutung or shearing implements consist of the pronged stationary cutter, 5,
and the serrated vibrating detachable cutter, 6, faced together and by their angular
edges adapted to shearing wool, hair, or fibre of any kind that will pass between
the teeth, 7, of the cutter, 5. The vibrating cutter, 6, rests upon the face of the
cutter, 5, the contact faces being cut away as desired to reduce friction. The
cutter, 6, is held in place by two or more carrier pins, 10, projecting into or through
the top side thereof, thereby permitting the cutter, 6, to be readily detachable,
and which pins are borne by a T-shaped plate, 9, bearing upon and spanning the
top of said cutter, 6, and placed with the broad portion of said plate forward, or
towards the cutting teeth. The stem of said plate, 9, is connected at its rearward
end by a hinge, 43, to a short round plug, 44, which is inserted into a round hole
bored into the end of the lever 8, to receive said plug, the said plug being made
with an annular groove near its rearward end into which a screw, 45, projects
through the side of said lever, 8, preventing the withdrawal of said plug from said

page_text: lever while permitting it to rotate freely in the end of said lever, whereby the said
T-shaped plate, 9, is permitted to take both a turning movement through the
action of said plug, 44, and a lifting and falling movement through the action
of said hinge, 43, thus permitting the cutter, 6, to adjust or accommodate
itself to obstructions. The T-shaped plate, 9, is caused to press upon the cutter, 6,
by the clamps or tension plates 11 hinged at 12, as seen in Figs. 1 and 2.
The clamps 11 are two in number to more equally distribute their bearing at
the sides of the cutter, 6, and avoid torsion. They are held down by a flexible
cap, 13, with screws, 14, and rest on the balls, 15, that roll in grooves, 16, formed
in the clamps, 11, and plate, 9, indicated by dotted lines in Figs. 2 and 3.
The vibrating lever, 8, is fulcrumed near the middle by means of the balls, 17,
one seated in a matrix formed in the main casing, 1, and the other held by adjust-
able screw, 18, passing through the cross bar, 19, and provided with a jam nut, 20,
as shown in Fig. 1.
The lever, 8, is given a multiplied vibrating motion by means of the double
crown wheel, 21, provided with cams, 28, alternately formed on opposite sides
which engage the rollers, 22, rotating on pins located on the rear end of said
lever, 8, moving the lever, 8, alternately right and left a distance each way equal
to the depth of the cams, thus producing coincidently a rapid lateral reciprocating
motion of the cutter, 6, severing whatever passes into the teeth of the stationary
cutter, 5.
To impel the crown wheel, 21, I employ a driving wheel 23, fastened on the cross
shaft, 24, and meshing into the pinion, 25, on the cross shaft, 26. These shafts 24
and 26 have bearings in the shells, 27, screwed into the sides of the main casing, 1,
in such a manner as to be conveniently removed from the outside. The seats of
these shells, 27, are closed at their outer ends to exclude dust and their seats in the
casing being large enough to receive the full diameter of the cross shafts 24 and 26
so these latter can be conveniently placed or removed through these seats, or from
the top when plate 2 is taken off.
To impel the driving wheel, 23, there is a clutch device comprising in this
instance an internal rack wheel, 29, made integral with or fastened thereto and
engaged by pawls, 30, on the driving pulley, 31, the latter being mounted loosely
on the shaft, 24, and driven by a cord, 32, passing once around in the groove, 33,
as indicated in the diagram Fig. 6. This cord, 32, is attached at one end to some
stationary point as at 34, and after passing around the pulley, 31, extends through
apertures, 38, in the main case, 1, to a stationary pulley, 35, and is attached to a
weight, 36, as shown in Fig. 5.
To use the implement the operator takes it in one hand, his thumb resting
against the horn, 39, and pulls against the tension of the cord, 32, thus setting the
wheel, 23, and the cutter, 6, in rapid motion and raising the weight as far as
his hand will extend, or as far as the length of the cord is arranged to permit. By
then releasing the cord, 32, the weight, 36, descends taking up the slack, the
pawls, 30, moving backwards, and the pulley, 31, revolving free on the shaft 24.
As soon as the weight, 36, has descended as far as the slack of the cord permits,
another stroke can be made, thus producing a nearly constant action of the
cutter, 6.
To remove the cutters 5 and 6 for sharpening the cutter angles, or for other
purposes, the cutter, 5, is slotted so as to pass under the heads of the screws, 41,
and can be instantly removed and replaced when these screws are loosened, freeing
at the same time the cutter, 6, which falls off the carrier pins, 10, as soon as the
stationary cutter, 5, is removed.
Thus it will be seen that all the various parts of the implements are accessible,
easily removed and replaced, and are brought within such space and form as to be
conveniently operated with one hand.
It will be understood that instead of the hand operating cord, 32, one driven
by motive power can be employed, and the implement operated without inter-
mission.

page_text: Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is;-
―:
1. In a shearing implement, the cutters 5 and 6, plate 9, pins 10 secured thereon,
plug 44, vibrating lever 8 to operate the same, rollers located upon the end thereof,
and a crown wheel with alternate cams on the sides thereof engaging said rollers
to produce the vibrating cutting movement, substantially as specified.
2. In a shearing implement, the casing 1, removable top 2 and cross shafts 24
and 26, impervious shell bearings 27 in which the shafts are mounted, said bear-
ings being screwed in from the outside of the casing and permitting removal of
the shafts through the sides and from the top thereof, substantially as specified.
3. In a shearing implement, the shaft 24, the driving wheel 23 fast thereon,
with rack wheel 29 secured thereto, the driving pulley 31 loose upon said shaft
and having pawls engaging the rack wheel, shaft 26, pinion 25 thereon, crown
wheel 21 fast upon the shaft, and the vibrating lever 8, adapted to receive motion
from said wheel, substantially as specified.
4. In a shearing implement, the driving wheel, 23, the circular rack wheel 29
chambered therein, the grooved pulley 31, the pawl 30 secured thereto said pulley
adapted to receive an impelling cord, substantially as specified.
5. In a shearing implement, the fixed cutter 5, detachable vibrating cutter G,
plate 9, pins 10 secured thereon and lever 8 for actuating the latter, hinged
clamps 11 for holding the faces of the cutters in close contact, flexible cap 13,
adjusting screws 14, and bearing balls 15, the latter rolling in grooves formed
in plate 9, and in clamps 11, substantially as specified.
6. In a shearing implement, the casing 1 provided with the removable cover 2,
slots or apertures 38 to admit a driving cord, and a horn or stop 39 to prevent
the tension of the cord from sliding the implement in the operator's hand, sub-
stantially as specified.
7. In a shearing implement, the fixed cutter 5 detachable vibrating cutter 6,
plate 9 pins 10 secured thereon, hinge 43, plug 44, lever 8, balls 17, rollers 22,
crown wheel 21, shaft 26, pinion 25, driving wheel 23, rack wheel 29, shaft 24,
driving pulley 31 loose upon said shaft and having pawls engaging said rack
wheel, all operatively connected and coacting to the production of a vibrating
motion of said cutters and the cutting of objects inserted between the teeth of said
cutters.
8. In a shearing implement, the combination of the fixed and movable shearing
cutters 5 and 6, plate 9, pins 10 secured thereon, plug 44, vibrating lever 8.
rollers 22 fixed upon the rear end thereof and crown wheel 21 engaging said
rollers with means for operating the same.
9. In a shearing implement, the combination of a detachable cutter 6, pins 10
engaging and controlling said cutter whereby it is radially removable, plate 9
bearing said pins, plug 44, to which said plate is hinged with means to which the
plug is loosely connected for operating the same whereby said plate may rise and
fall and also turn to accommodate itself to working conditions and producing a
cutting action.
Dated this 20th day of December 1898.
PHILIP M. JUSTICE,
Chartered Patent Agent, London,
For the Applicant.