Improvements in Machines for the Manufacture of Toothed or Spiked Metal Bars or Ribbons.
Year: 1897

page_text: Date of Application, 19th May, 1897
Complete Specification Left, 19th Feb., 1898--Accepted, 14th May, 1898
PROVISIONAL SPECIFICATION.
Improvements in Machines for the Manufacture of Toothed or Spiked
Metal Bars or Ribbons.
We, THOMAS GARE, of 25, Booth Street, Edgeley, Stockport, in the County of
Chester, Engineer, and BERRY LIMITED, of Angel Lane, Northampton, in the
County of Northampton, Manufacturers, do hereby declare the nature of this
invention to be as follows;
-
This invention has for its object to provide a machine whereby metal bars or
ribbons for boot tips and for other purposes can be formed with teeth or spikes at
one or more edges in a simple and very rapid manner and whereby such bars or
ribbons after having been toothed or spiked may be cut automatically in length as
desired and its side or sides or edge or edges ground, polished or planed if
required.
To this end we mount in suitable bearings a shaft which has rotary motion
imparted at one end and carries at the other end a punch operating in conjunction
with a die arranged at the side thereof, the shape of which punch and die corres-
ponds with the piece to be punched out of the said bar or ribbon at each revolution
of the said punch.
In order to keep the punch clear we employ a suitable spring on the head of the
punch which throws the bit punched out off the face of the punch the moment
the punch leaves the die or a small finger or lever may be attached to the said head
in lieu of the spring and operated once every revolution of the punch by a station-
ary part say a projection or cam.
The said bar or ribbon is fed intermittently across the said die and the path of
the said punch by means of a worm secured in front of or to the head which carries
the said rotary punch, the threads of which worm engage between the teeth or
spikes formed on the bar or ribbon by the said punch. Half of the circumference
of the threads of the said worm is formed at a right angle to the axis of the worm
so as to feed the bar or ribbon only during one half of the rotation of the worm
whilst the said punch is out of action and to hold it in position whilst the punch
is in action.
In lieu of employing only one punch, a number may be arranged in a straight
row so as to punch a number of pieces out of the bar or ribbon simultaneously
which obviously necessitates the use of a worm with a corresponding increased
pitch.
As the toothed or spiked bar or ribbon leaves the said worm it may be guided
over, under or against one or more stationary cutting tools or suitably mounted
and rotated emery discs or milling cutters, which serve to plane, grind or polish
its side or sides and edge or edges as may be required.
The bar or ribbon thus toothed or spiked and finished may be caused to contact
with an adjustable abutment piece carried by a lever and set at a predetermined
distance from a shear, across the path of which the bar or ribbon passes.
By means of suitable connections the said lever is caused to set the aforesaid

page_text: shear into operation each time the front end of the toothed or spiked bar or ribbon
contacts with the said abutment piece thus cutting off a length, after which the
said lever and shear are caused to resume their normal position and remain
inoperative until the next contact takes place.
13.-
1005
Improvements in Machines for the Manufacture of Toothed or Spiked
Metal Bars or Ribbons.
We, THOMAS GARE, of 25, Booth Street, Edgeley, Stockport, in the County of
Chester, Engineer, and BERRY LIMITED, of Angel Lane, Northampton, in the
County of Northampton, Manufacturers, 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 for its object to provide a machine whereby metal bars or
ribbons for boot tips and for other purposes can be formed with teeth or spikes at
one or more edges in a simple and very rapid manner and whereby such bars or
ribbons after having been toothed or spiked may be cut automatically in length as
desired and its side or sides or edge or edges ground, polished or planed if
required.
And in order that our invention may be more fully understood we have caused
to be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures, Fig. being a side view, Fig. 2 a plan,
Fig. 3 an end view of a complete machine constructed in accordance with our
invention. Figs. 4, 7 and 8 are cross sections, Fig. 5 a plan and Fig. 6 a side
view of Fig. 4 at an enlarged scale of some details of our invention.
In carrying out our invention and referring to Figs. 1, 2 and 3, we mount in
suitable bearings a, a shaft b which has rotary motion imparted at one end, say by
a pulley and strap c, e and carries at the other end a punch d operating in con-
junction with a die e arranged at the side thereof, the shape of which punch and
die corresponds with the piece to be punched out of the bar or ribbon f at each
revolution of the said punch.
The punch is rendered adjustable towards the die e in a slot formed through
the centre of its head g and shaft b by means of a set screw h employed at one
end in the centre of the shaft b to bear against the side of the punch d, see more
particularly Figs. 4, and G.
The die e is formed in three parts, its sides being vertically and horizontally
adjustable by means of the set screws i and i respectively, to allow of compensat-
ing for wear and of accommodating different sizes of punches.
In order to keep the punch d clear of the bits punched out of the metal bar or
ribbon we employ a suitable flat spring on the punch head g, see Fig. 4, which
throws the said bits off the face of the punch the moment the punch leaves the
die, or a flat spring may be fixed to some part of the frame of the machine and
strip the bits off in the manner shown in Fig. 7, or a small finger or lever 1, see
Fig. 8, may be pivoted to the head in lieu of a spring and operated once every
revolution of the punch, by one end thereof coming into contact with a stationary
part, say a projection or cam m on the frame, so as to cause the other end to push
off the said bits, a spring bringing the lever back to its normal position.

page_text: The face of the die e is grooved crosswise to conform with the section of the bar
or ribbon f to be operated upon and a plate el is fixed over the bar or ribbon to
prevent it from lifting. The bar or ribbon f is fed intermittently across the die e
and the path of the punch by means of a worm n secured in front of or to the
head g which carries the said rotary punch d, the threads of the said worm
engaging between the teeth or spikes f¹ formed on the bar or ribbon f by the
said punch. Half of the circumference of each thread of the worm n is formed
at a right angle to its axis so as to feed the bar or ribbon f only during one half
of the rotation of the worm n, i.e. whilst the said punch is out of action and to
hold it in position whilst the punch operates.
In lieu of employing only one punch and die, a number may be arranged in a
straight row so as to punch a number of pieces out of the bar or ribbon simul-
taneously, which obviously necessitates the use of a worm with a correspondingly
increased pitch as will be readily understood.
As the toothed or spiked bar or ribbon f leaves the worm n it may be guided
over, under or against one or more stationary cutting tools or as shown in the
present instance, Figs. 1, 2 and 3, over suitably mounted and rotated emery discs n',
or milling cutters, which tools or cutters serve to plane, grind or polish the side or
sides and edge or edges of the bar or ribbon as may be required.
The bar or ribbon thus toothed or spiked and finished may be caused to contact
with an adjustable abutment piece carried by a lever p, and set at a predeter-
mined distance from a shear q, q' across the path of q of which the bar or ribbon
passes.
By means of suitable connections, say a clutch arrangement such as shown in
Figs. 1 and 2, the lever is caused to set the shear part q in operation each time
the front end of the toothed or spiked bar or ribbon contacts with the abutment
piece thus cutting off a length, after which the lever p. and shear part 7 are
caused to resume their normal position and remain inoperative until the next con-
tact takes place.
The said clutch arrangement consists of two pulleys r, 1 mounted loosely upon
a shafts upon which is also secured the eccentric t which imparts motion to the
shear part q. The pulley r¹ at its side is formed with a clutch and adjacent
thereto is pivoted to the shafts a forked lever s¹ under the influence of a spring sa
which tends to press the said lever into the said clutch and thus engage it when
required and thereby actuate the shear part q.
In connection with the lever 7 and forked lever s another lever ut having two
inclines u, u², see Fig. 2, and under the influence of a spring ³ is arranged.
Before the free end of the bar f contacts with the abutment piece o, the incline u²
of the lever is in the path of and holds the forked lever s out of the clutch
and when the bar f contacts with the said abutment the free end of the lever ?
acts upon, the incline and turning the lever u causes its incline to release
and allow the forked lever s¹ to fall into and engage the clutch 2 and thus cause
the shafts to be rotated by the pulley and the shear to cut the bar f.
The moment the bar f has been cut it drops, the spring ³ draws the lever u
inwards and the incline lifts the forked lever s out of the clutch 2 and thus
renders the shear inoperative whilst the lever p is moved to its normal position by
the incline of the lever u.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:-
1st. In machines for the manufacture of toothed or spiked metal bars or
ribbons, a worm n having screw threads half the circumference of which, is formed
at a right angle and the other at an incline to the axis of the worm, the former
being adapted to hold the bar or ribbon in position whilst being operated upon
and the latter to feed the same the required distance, all substantially as set forth.
2nd. The worm a specified in the preceding claim, in combination with a

page_text: rotary punch and a die e the said punch being adapted to operate upon the metal
bar or ribbon f whilst the right angular threads engage between the teeth or
spikes of the bar or ribbon, all substantially as and for the purpose set forth.
3rd. In combination with a machine such as specified in the preceding claims,
means for planeing, grinding or polishing the said bag or ribbon, all substantially
as set forth.
4th. In combination with a machine such as specified in the preceding claims,
a shear q, q adapted to cut off pieces of the said bar or ribbon f, which shear is
rendered operative automatically by allowing the free end of the bar or ribbon to
thrust against a contact piece o carried by a lever p operating through suitable
connections, the shear part q, all substantially as set forth.
T
י
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicants.