Year: 1895

page_text: Date of Application, 26th July, 1895-Accepted 14th Sept., 1895
Figures 4 and 5 show on a larger scale the special device by means of which
pointed teeth are stamped out of the sheet of metal and pressed into the under side
of the card clothing.
The remaining Figures 6-8 which are on a still larger scale show the special
arrangement for stamping the teeth from the cover B and pressing them into the
underside of the clothing band N.
The fastening bands B which are preferably formed of soft sheet steel are first
bent over along one edge to form a channel section (with a projecting ridge to be
pressed into the clothing) before they are placed in the machine for being forced
onto the card clothing, and they are placed on the clothing A lying sideways on
the latter and with their shorter side or edge engaging over the same and the
clothing is then laid on the adjustable rails or bars M. These latter are mounted
on two supports E placed opposite one another, and are adjustable in height and
width by means of set screws m m². Directly over these guide bars or rails M is
a roller D mounted by means of its spindle d in a lever L loaded with an adjustable
weight and revoluble on pius d'; this roller presses, by means of its two projecting
edges or flanges, the fastening bands B firmly against the card clothing A (or the
latter on the bars M). Elbow levers G are revolubly held between pointed
screws e in the two supports E which may also be mutually adjusted towards or
away from one another by means of set screws e. Segment shaped stamps or
punches F, see Figure 8, are fastened to the shorter ends of these levers G, and
are triangularly pointed in front to correspond to the form 6 which is to be stamped
out (see Figure 7). The longer fork-shaped ends of the elbow levers G are
connected with the crank pins of the cranks H by means of longitudinally
adjustable coupling rods i, and the spindles of these cranks II are mounted in
Price 17

page_text: bearings in a common plate S and have cog wheels R at their other end, which
cog wheels receive an even rotary motion by means of the gearing wheels r and r¹
from the belt driven pulley U.
The bedplate S is fastened on the brackets O which are fixed on the supports N.
The driving shaft for the belt pulleys (fast and loose) and the cog wheel r is
mounted at one end in a bearing in the support N and at the other end in an elbow
bracket n which is also attached to the support N.
At each revolution of the cog wheels R, the crank discs H also make a revolution
thus moving the elbow levers G and thereby stamping, by means of the points fof
their punches F, a flap b, (for instance of triangular shape as shown in the drawing)
out from the sides of the fastening band B in such a way that the base of the
triangle still remains attached to the band B but the point is bent round on the
underside of the card clothing A and forcibly pressed into the same (Figures 6
and 7). The form of the stamped out flaps may of course be other than triangular
if desired.
It is assumed in the drawing that a flap bis stamped out at both sides at each
revolution of the cranks H, and is pressed into the card clothing A from beneath.
Two or more such stampings out might however equally well take place at once on
both sides, and in that case the punches F must each be provided with a suitable
number of stamping out points f
The card clothing is pushed forward intermittently and this takes place always
as long as the points of the punches F are not in engagement with the bands B.
The pushing forward is effected in the following manner. One end of the
clothing A is gripped by means of a pincers k¹, the ends of the arms or shanks of
which are connected by means of obliquely lying connecting pieces, with a chain K
which is passed over a chain wheel K. This chain pulley K' is mounted on a
cross spindle w supported in the side pieces O, on one end of which spindle a
ratchet wheel W is also fixed. A pawlt on the slide piece T engages in this
ratchet, and also a counter pawl t. The intermittent movement forward of
the ratchet wheel W takes place by the up and down movement of the slide
piece T. This is effected by means of a pin 2, on the slide piece T, being raised
by means of a lever v¹ mounted on a shaft P by turning said shaft a little way.
The small rotary movement of the shaft P is imparted to the latter by means of
a lever v seated at its other end, which lever on the rotation of one of the cranks H
is raised by means of a roller a mounted on an extension of one of the crank pins h.
The movement for the raising and lowering of the lever v only lasts during about
of the period of rotation of the crank H, and therefore the intermittent forward
movement of the card clothing is effected during this time. If only one point is to
be stamped out at each side at each rotation of the crank, the movement forward
amounts to one space b. If 2, 3 or more points are to be stamped out at once on
each side, the movement forward is 2, 3 or more times this space.
clothing has been engaged in this manner on both sides by the fastening bands
above and below, it is fixed on the flats by the bands B being bent round in the
usual way on the edges of the flats. The end edges of the card clothing may
also be provided with tightening bands in similar manner to that hereinbefore
described, but in this case these bands are not attached to the flats.
After the card
The card clothing engaged in the manner herein before described by the steel
bands and drawn on the flats, hold uncommonly firmly to the latter, and thus a very
good and durable tension of the clothing is secured without weakening the substance
of the clothing.
Having now particularly described and ascertained the nature of the said inven-
tion 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:-
1. A machine for fixing metal bands previously made elbow shaped or to an
angle and with a somewhat projecting edge, on card clothing, characterised by the
two metal bands (B) lying sideways on the card clothing (A) being held together

page_text: with the latter between guide rails (M) and a pressure roller (D), the parts of the
metal band provided with a small edge being pressed firmly on the clothing and
the projecting edges pressed into the same, whilst points (f) of punches (F)
attached to elbow levers (G) having a reciprocating movement by means of
connecting rods (i) and cranks (H), stamp out of the sides of the metal bands (B)
triangular or other shaped flaps (6) still connected at one side with the metal bands
and bend round and press same into the under side of the card clothing (A) in
such a way that the latter is engaged above and below by the metal bands and is
attached to the metal bands in the most secure manner by means of the projecting
edges or sharp points, without it being necessary to rivet or pin them through
substantially as described and illustrated.
2. In a machine such as described, the device for intermittently moving forward
the card clothing (A) together with the metal bands (B), consisting of a chain (k)
connected with pincers (¹) and passing over a chain pulley (H) on the spindle of
which a ratchet wheel W is mounted, which is intermittently revolved by means
of a movably arranged pawl (1), two levers (v¹ and v) and a shaft (P) by the lifting
of one of said levers (v) by means of a roller (a) mounted on one of the crank
pins (h), and which suitably conveys such movement to the chain (4) and card
clothing (A) substantially as described and illustrated.
3. As a new article of manufacture, card-clothing which is provided with
fastening bands by means of the machine described in Claim 1 in such a way
that these bands are fixed in the clothing above and below by means of
ridges and tongues on the bands which enter the clothing substantially as set
forth.
Dated this 25th day of July 1895.
WM. P. THOMPSON & Co.,
Agents.