Apparatus for Setting Up or Forming Ribs or Thickenings on Material such as Paper Board.
Year: 1896

page_text: Date of Application, 26th Aug., 1896-Accepted, 31st Oct., 1898
COMPLETE SPECIFICATION.
Apparatus for Setting Up or Forming Ribs or Thickenings on
Material such as Paper Board.
A communication from abroad by BERLINER KUNSTDRUCH-UND VERLAGS-
ANSTALT, vorm. A. & C. KAUFMANN, of Berlin, German Empire.
I WILLIAM LLOYD WISE, of 46 Lincolu's Inn Fields, in the County of
London, Consulting Engineer and Chartered Patent Agent, do bereby 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 relates to the formation of ribs or thickenings along parts of paper
boards intended to be folded or bent by subjecting the paper board whilst upon a
rigid table or support to the action of a pair of slidors which having appropriately
formed operating edges and are caused to move obliquely towards each other and
towards the paper board until their operating edges, are at a suitable distance apart
whereupon the oblique movement of the sliders is converted into a movement of the
operating edges towards one another in a horizontal or conimou plane in auch a
manner that the sliders acting upop the surface of the papor board cause a portiou
thereof between them to be raised and to form a rib or thickening. This mode of
forming such ribs or thickenings enables the use of unreliable spring pressure to be
obviated, and can be carried out whilst the paper board lies without change of
position upon the rigid table or support. For the purpose of efficiently guiding
and controlling the sliders during their above mentioned movements, there is
combined with them a doubly inclined or wedge-shaped block or hacking arranged
between the sliders as hereinafter explained so that the formatiou of the rib or
thickening can be effected with great accuracy even when very inferior paper-
board stuff is used, and without weakening the same.
Referring to the accompanying drawings,
Figs. 1 to 4 illustrate in four differont positions apparatus according to this
invention for setting up or forming ribs or thickenings.
This apparatus comprises a block or part a which has its two lower sides at right
angles to one another and is able to be moved to a certain extent in a vertical
sense. Such motion is imparted to the block a (which is suitably guided) from an
eccentric e keyed on a shaft band whose strap is connected to the part a by means
of a connecting rod c'. The two lower inclined surfaces of a are provided with
guideways in which the sliders g g are arranged to slide. These sliders receive
their motion from eccentrics e e mounted on shafts d d and having their straps
connected by connecting rods ff to the sliders gg.
The three shafts b, d, d are connected by toothed gearing. The throw of the
eccentric c for operating the part a is about one half the throw of the eccentrica e
for operating the sliders, and the eccentric is set somewhat in advance of the
eccentrics e e. The above described mechanism is mounted over a rigid table or
Bupport upon which the paper board p is laid. In Fig. 1, the positions of the
parts as represented are such as obtain when all the three parts a, 9, 9, are still
moving downwards. In Fig. 2 the said parts are represented as having assumed
their lowest positions so that the working edges of the sliders g g have impinged
upon the paper board. In Fig. 3 the middle part a is represented as having
commenced to rise, whilst the sliders g g are supposed to be continuing their sliding
movement in their guides on the part a. The motion of the sliders is by the rising

page_text: movement of the part a converted into a horizontal movement of the sliders towards
one another during which they set up the paper board which is engaged by their
working edges. The said movements of the parts, and setting-up process are
continued until the parts assume the relative positions shown in Fig. 4, when the
Betting-up operation is completed, and there is now an upward movement of all the
parts, and a moving apart of the sliders. The set-up paper board may be moved
or taken away and other paper board be placed in position and the setting-up
process repeated.
Fig. 5 illustrates the sliders with recessed working edges the concave shape
of which determines the external formation given to the ribs or thickonings
produced.
The apparatus hereinbefore described for forming ribs or thickenings at the parts
corresponding to the folds or bends of paper board, may be modified in the
manner represented in Figs. 6 to 8, whereof Fig. 6 shows a cross section ou
the line y of Fig. 7, Fig. 7 shows a plau, and Fig. 8 a side elevation.
Of the apparatus illustrated in Figs. 1 to 4, there are retained in the
modification Figs. 5 to 8 the sliders g having converging movemont imparted to
them whilst guided in a vertically movable part a, aud which when they have
impinged in an oblique direction upon the paper board resting on a rigid table or
support, are caused by upward movement of their guiding part to inove in a
horizontal direction towards each other, and thereby to set up a rib or thickening
along the surface of the paper board. But whereas in the arrangement as shown
in Figs. 1 to 4, the sliders gg and the intermediate block or guide piece a received
their motion by means of three shafts connected by toothed wheels, in the present
arrangement (Figs. 6 to 8) this connected driving of the three parts is dispeused
with. The two shafts d d with their eccentrics'e e are retained, aud the latter are
movably jointed by means of the connecting rods ff to the sliders gg. The
shafts d d are provided with liuks m m which are connected together by means of
a rigid connecting rod n. If now one shaft d be partially rotated by means of a
lever o, this motion will be transmitted by means of the links m m and connectiog
rod n to the other shaft, and owing to the way in which the two eccentrics e e are
set relatively to each other, the motion of the two sliders gg will always be uniform.
The guide piece a is without driving mechanism. At its ends it is provided with
guide pins pp adapted to enable it to slide up and down guided in the slots q.q of
the side walls of the framing.
The action of this arrangement is such that when the sliders g g, in their
converging movement, impinge upon the paper board, the resistance produced
thereby will cause an upward sliding movement of the guide piece a, whereby the
converging movement of the sliders 9 g will be converted into a horizontal
movement which will cause a rib or thickening to be set up on the paper board
between the mutually approaching sliders.
The modified arrangement just described with reference to Figs. 6 to 8, is not
only cheaper to manufacture than that represented in Fig. 1, but furthermore it is
more simple to operate or manipulate because it does not require to be first adjusted.
to determined thicknesses of paper board.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that
what I claim is :-
rigid
1. An apparatus for setting up or forming ribs or thickenings on material such
as paper board, comprising two sliders g and means for guiding and moving them in
converging directions towards material to be operated upon supported on a
table or support and which slidors after impinging upon the work, are caused by
the yielding or rearward movement of the block or guiding part a to move towards
each other in a direction parallel to the surface of the table or support and
thereby to set up paper board or material between them so as to form a
rib or thickening.

page_text: 2. Apparatus as desoribed with reference respectively to and illustrated
in Figs. I to 4 inclusive and in Figs. 5 to 8 inclusive for forming ribs or
thickenings on material such as paper board as set forth.
Dated this 26th day of August 1896.
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.