Year: 1888

page_text: Date of Application, 17th Apr., 1888
Specification Accepted 18th May, 1888
relates to machines for manufacturing metallic lattice-work. trellis-

page_text: Figure 11 is a front view of segment of longitudinal sliding head showing lower
cutters in position and the means for securing them to said sliding head.
Figure 12 is a perspective view of one of the cutters.
Figure 13 is a perspective view of a piece of metal part of which is formed into
slashed metallic screening.
Figure 14 is a perspective view looking from the delivery end of the machine showing
the lower sliding head, cutters and feeding device.
Similar letters of reference refer to similar parts in the different figures.
The novel features of the invention relate to the feeding and cutting device.
A in Figures 4, 8, 10 and 11 shows the form of the cutters. B Figure 12 is a stock
secured to or integral with each cutter.
C is a clamp for clamping the stock B of cutter A.
This clamp is formed of an upper and lower jaw, drawn together by suitable bolts.
One jaw of this clamp is cut into segments for the purpose of easily removing the
cutters as shown at D, Figures 10 and II. There are two of these clamps each
similarly constructed, one of which is secured in the upper part of the lower cutter
head, and the other to the lower part of the upper cutter head, as shown at Û in
Figure 4.
Figures 4, S, 11 and 14 shows a recess in the lower cutter head, through which
access is obtained to the nuts of the bolts employed for drawing the jaws of the clamp
together the said bolts also secure the clamp to the said longitudinally travelling
head.
F Figures 8 and 11 is a filling piece placed in the said recess E for the purpose of
supporting the parts, and is held therein by suitable bolts.
G G in Figures 1, 2, 4, 8 and 10, are adjusting screws which pass through the
upper part of the longitudinally travelling head, as shown in Figure 8, and the lower
one of the vertically travelling head as shown in Figure 4, and bear against the
stocks B of the cutters for the purpose of adjusting the cutters. These cutters A A
are placed edge to edge their vertical faces being off set in step form, as shown in
Figures 10 and 11 and being of uniform size each cutter can be adjusted at pleasure
by the screw G.
1,1 Figures 4, 5, 6, 7, 8, 9 and 14 are two bars parallel with bar N and fastened to
the machine one of which bars having the flange J see Figures 8 and 9 serves to
guide the metal to be cut and expanded. To these two bars are secured caps K
and shoes L by bolts passing through them which hold them firmly in position.
Caps K carry dogs M Figures 5 and 6 which are used to lock the metal in position
while it is being cut and expanded.
N Figures 5, 7, 8, 9 and 14 is a longitudinally travelling bar, located at
rear of bars I, I and carrying caps 0, d. and shoes Figures 5, 6, 7, 8
and 9. Said caps and shoes being secured respectively above and below the
said bar N, by suitable bolts, one set of said bolts passing through the space R
between bars I, 1.
This bar N travels lougitudinally with its dogs Q Figures 5, 6 and 14 and is given
a lateral movement by the cap bolts which pass through slot or space R
Figures 5, 7, 8 and 9. These slots diverging from the face of the flanged bar I in the
direction of the forward travel of the bar N.
S Figures 5, 7, 8 and 14 is a parallel bar to which is connected at their upper ends
the dogs Q. T Figures 6, 7, 9 and 14, are stops against which the dogs Q strike in
their backward movement. U Figure 7 is a friction roll or slide to prevent wear upon
the bolts, securing caps O and shoes P to the bar N in their longitudinal travel.
Bars N and I, 1, are set down in the cut-away part of the shoes Land for the purpose
of allowing flange J to extend outwardly from the guide line, so that the end of the
metal feeding over said shoes will be supported thereby in its forward travel. V
Figures 1, 2 and 3 is a rotary cam actuating the parallel bar S backwards and forwards,
and is worked by gears X X operated from the main shift. Figures 6 and 4 show
the parallel bar S in its forward position with its feed dogs Q thrown against screw W
in dogs M causing said dogs to lock the metal between them and their shoes L. It is

page_text: while the dogs are all in this position that the cutters operate on the metal.
Z Figures 1, 2 and 3, is a bracket supporting and forming a guide for end of
parallel bar N, below the rotary cam. H, H Figures 8, 10 and 14 are wedge shaped
pieces which govern the lower sliding head in its lateral movement, causing it to travel
parallel with the face of the cutter. A Figure 14 is an upper cutter shown in its
position relative to the lower cutters, before the act of cutting begins. The bar E¹
Figure 1 is connected at its upper end with the upper vertically moving cutter
head C at the point. F. The bar El works in bearings at its lower end. On this
bar E is the boxing I. Jis a bent lever working on a fulcrum K. At one end it
works in a rear boxing at the other end it is connected to link L. The other end
of this link is attached to and reciprocates the lower cutter head. The adjusting
screws W Figures 5, 6 and 14 are attached to one set of dogs forming bumpers for
locking one set. M Figure 1 is a clutch operated by means of a lever beneath it
and used for the purpose of throwing the machine in and out of gear. N¹ N¹ are
tight and loose pulleys on the counter shaft of the machine. 8, 0, are fly
wheels on said counter shaft. The movements and purposes of this machine are
accomplished as follows.
Power is conveyed to the machine by a belt running on the tight pulley on the
counter shaft, on which are secured fly wheels O', O', and the spur gear, the latter
meshing with the large gear P¹ which runs loosely on main shaft A¹. The clutch M¹
when thrown into connection with the large gear, operates the shaft A', which by
means of eccentrics D', D', connected by straps and rods to head C, gives the latter
the requisite vertical movement. At F is connected the bar E' which by its upward
and downward movement operates levers J', link which latter being connected to
the lower longitudinally sliding head Q' gives to it its requisite movement. Gears XX,
Figure 3, rotate the cam V, which is secured to one of said gears, said cam giving a
longitudinal back and forward movement to parallel bar S, which boing connected to
the upper ends of feeding dogs Q, Q. shown in Figures 5, 6, 7, 8 and 14, causes them
to lock the metal to be cut between their lower serrated faces and their shoes P and
moves the dogs and the metal thus locked forward the requisite distance, and when
about at the end of the forward travel, said dogs are brought against the heads of the
adjusting screws in the other set of dogs, causing them also to firmly hold the metal
between their lower serrated faces and their shoes and to hold this interlocked position
by means of a dwell on cam V, passing along roller R¹ said roller being secured to
the bar S.. When these dogs remain in this position the act of simultaneously cutting
and expanding the metal is performed, the cutters in the vertically travelling head
piece passing through the metal, their bevelled faces following the bevelled faces of the
cutters in the lower longitudinally travelling head Q which is moved by the bent lever
and link connection J and 1. When the cutters on the vertically moving head have
passed the lower cutters the requisite distance the cam V quickly returns the parallel
bar S, causing bumper T, shown in Figure 6, to strike against the head of the opposite
screw, causing the locking dogs M, M, to loose their hold on the metal. While this
backward movement of bar S is being performed, the eccentrics D', D', being at, or
about, the lowest point of their throw, the cutter head C¹ consequently has but little
movement and the cutters hold the metal in position while the feeding dogs are making
their backward movement.
The cut away part of cam V permits the feeding device to lie dormant while the
vertically travelling head C presses upwards sufficiently far to clear a space between
the cutters when levers J' and link L operate to return the lower cutter head to its
former position, after cam V again has caused another forward feed movement of
bar S. The dogs Q, Q, in their backward and forward movement are also given a
side movement corresponding with slightly angular facings of sides of parallel bars I, I,
(indicated by R) and collar U, fitting therein between the said bars. The object being
to give a movement to the feeding dogs, and thereby cause the metal to travel closely
along the bar I and guide line J. and-to-prevent the cutter from drawing the metal
away from said line.
It will be observed that wedges H, H, Figures 8 and 10, is a device for imparting

page_text: the side or lateral movement of lower cutter head, the lower part of the same being
secured to the lower bed of the machine and the upper part to the sliding head. The
purpose of this being to cause the said cutters to travel backwards and forwards
parallel with their faces. The inclination of the wedge H, H, is determined by the
angle at which the lower cutters are set. The faces of the upper cutters are set to
correspond with the faces of the lower cutters, and consequently fit into the lower
cutters in their travel. The object in having a lateral travel to the lower head is that
the cutters in the vertically travelling head may be immediately beneath, and in line
with the main shaft of the machine. The bars I, I may be made. in one piece and
slotted to accomplish the same purpose.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed as communicated to
me by my foreign correspondent I declare that what I claim is
First. In a machine for manufacturing slashed metallic screening the combination
of two cutter heads with cutters in each head being set edge to edge and their faces
being set at an angle with each line of said cutters in step form, and adjustable back-
ward and forward in the angle in which they are set.
Second. A reversible cutter having a centre stock and four cutting sides, two of
the said cutting sides being parallel with each other and oblique to the other two
cutting sides.
Third. In a machine for manufacturing slashed metallic screening the combination
of fixed guide bars provided with-spaces or slots within, through or between them
the said spaces or slots diverging in a greater or less degree from the line of the
guide in the said bars in the direction of the feed, with suitable feeding mechanism.
Fourth. In a machine for manufacturing slashed metallic screening, the combination
therewith of an intermittent feeding device consisting of an actuating bar loosely
attached to one end of one or more locking dogs the said dogs being loosely secured
at or near their centres to journals and clamping against jaws at their opposite ends
the said journals and jaws being securely attached one above the other to bars
connecting the requisite number of said journals and jaws, all the said parts being
held in their respective positions by a guide bar fixed to the main frame of the
machine.
Fifth. In a machine for cutting and expanding flat metal into meshes the coin-
bination of two sliding cutter heads, each provided with cutters and each set of cutters
arranged in step form on its respective head, the movement of one cutter head being
longitudinal and the movement of the other being at or near a right angle thereto,
the cutters of each set adapted to fit into and pass over the faces of the other set,
and a suitable intermittent feeding device arranged and adapted by means of mechanism
to feed metal between the said cutters in line with and in the direction of the forward
travel of said longitudinally travelling head.
Sixth. In a machine for cutting and expanding flat metal into meshes, the com-
bination of two sliding cutter heads, each provided with cutters and each set of cutters
arranged in step form on its respective head, the movement of one cutter head being
longitudinal and the movement of the other being at or near a right angle thereto,
the cutters of each set adapted to fit into and pass over the face of the other set, and
a suitable fixed guide located at the rear of and parallel with the travel of said
longitudinally sliding head.
Dated this 17th
:1 1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.