Improvements in or relating to Attachments for Book-cover Machines.
Year: 1898

page_text: Date of Application, 10th Jan., 1898-Accepted, 19th Mar., 1898
COMPLETE SPECIFICATION.
Improvements in or relating to Attachments for Book-cover
Machines.
A communication from FREDERICK P. HILL, Engineer, of 520, Austin Avenue, Chicago,
Illinois, United States of America.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, 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 relates to an attachment for use on machines operating to manu-
facture "book-cases," as they are known to the binders' trade, or "book-covers " as
they are hereinafter termed; and it is especially designed for use on the well-known
Bredenberg machine, which has been introduced and is now in use in Great Britain,
and is described in the Specification of British Patent 2137 of 1893 to supplement
that machine by co-operating therewith to cut and apply the lining-strips for
the backs of the covers, being the strips of paper which it is customary to gum to the
inner surfaces of the backs to reinforce the latter. Hitherto, and in the use of the
aforesaid machine, it has been the practice to cut and apply these lining-strips by
hand.
Inasmuch as all the parts of the machine, for use with which the attachment is
designed, are old, there is no need of showing and describing, in detail, in the present
connection, more of the said machine than is necessary to enable the co-operation
therewith of the improved attachment to be comprehended by those skilled in the
art.
Generally stated, the operation of the aforesaid machine is as follows:
The fabric to form the covering for the book-cover is fed, in a web, from a roll at
the rear end of the machine, in passing from which it is pressed against a gumming
roll to coat one surface with cement. From the gumming device the web passes over
suitable rollers, past mechanism operating to feed boards cut to proper size and
contained in two piles, side by side, in a suitable magazine. This feeding mechanism
delivers the boards, two at a time, one from each pile, to the cemented side of the
web, in succession suitably timed relatively to the rate of feed of the web in a
manner to apply the pairs of boards against the web at proper intervals to leave the
requisite space between the successive pairs to form the two overlapping flaps. The
boards and fabric are pressed tightly together by passing them between pressure-rolls
to cause the boards to adhere to the gummed surface. On reaching a suitable
position, a cutter is actuated to sever the web midway between two successive
pairs of boards; and just before severing the web the corners of the projecting edges
of the board-covering fabric are also cut off to the proper outline by providing
V-shaped knives at the ends of the cutter.
It is at this point in the operation of the machine that the improved attachment
is caused to act to feed a web of paper, from a roll thereof, cut from it a section
of proper shape and size to form the lining for the back of the book-cover, and apply

page_text: it firmly to that portion of the cement-coated surface of the web which extends
between the two boards and forms the back.
After the application of this lining-strip, the advancing edge or flap of fabric is
folded over by the action of a suitable folder; and after each cutting operation to
sever from the web, with the superimposed boards, a section, the rearward projecting
flap of the latter is turned forward and laid against the opposite end-portions of
the boards by another end-folder.
The final operation of the machine is performed by side-folders operating to
fold over the later edges of the boards the projecting side-flaps of the fabric, thereby
causing them to adhere.
Referring to the accompanying drawings-
Figure 1 is a cross-sectional view of the entire machine, showing the improved
attachment in end elevation, the view being taken at the line 1 on Figure 3 and
regarded in the direction indicated by the arrow; Figure 2, a section taken at the
line 2 on Figure 1 and viewed in the direction of the arrow; Figure 3, a section
taken at the line 3 on Figure 1 and viewed in the direction of the arrow; Figure 4,
a section taken at the line 4 on Figure 3, and viewed in the direction of the arrow;
Figure 5, a section taken at the line 5 on Figure 3 and viewed in the direction of the
arrow Figure 6, a broken sectional view taken through the attachment in front and
lengthwise of the cutter, showing it in raised position; Figure 7, a similar view
showing the cutter in its position just after operating; Figure 8, a section taken at
the line 8 on Figure 7 and viewed in the direction of the arrow; Figure 9, a section
taken at the line 9 on Figure 8 and viewed in the direction of the arrow; Figure 10,
a section taken at the line 10 on Figure 9 and viewed in the direction of the arrow;
and Figure. 11, a pian view of one of the severed sections of the web of fabric with
the boards and lining strip thereon and before the projecting flaps have been folded
down.
A is the frame of the machine, near the longitudinal center of which is the trans-
verse cutter-head e and carrying the blade e¹ and the V-shaped knives e² near its
opposite ends. This head is supported in the frame to be lowered at the proper time
through the medium of the springs B¹ B¹ and raised by the rods B B after the
cutters have operated to sever the web and cut the corners of the flaps, as herein before
stated.
On the cutter-heade the improved attachment is supported to extend at a right-
angle therewith along the longitudinal center of the machine and to move with the
head. This attachment involves the following-described construction:
C and C¹ are the outer heads formning the front and rear ends of the attachment,
and preferably of the general disk-shape shown, with the lower angular extension r
on the forward head, containing the slot p extending vertically upward from its lower
edge. C² and C³ are the inner heads, generally shaped like the head C with the
slots p¹ and p² respectively in their extensions 1 and 2 and coinciding with the
slot p. The heads C C2 and C³ are spaced and rigidly held apart by rods o 01 02 03
and of passing through them at intervals near their perimeters and fastened by
nuts o at their opposite projecting ends and by collars of and set-screws of adjacent
to the inner side of the head C. The head C₁ is spaced and rigidly held apart from
the head C³ by rods 08 fastened by nuts o alternating at their outer and inner
projecting ends.
Extending lengthwise of the attachment from the straight lower edge of the
head C to that of the head C³, at one side of the slots p p p², and fastened to said
edges, are the base-plates n n¹; and fastened to the bottom of these plates is the
shorter gage-plate n² having the downward extending lip n³ along its inner edge.
Above the plate n and supported to leave the paper-feed space m below it (Figure 5)
is the guide-shoe for the lining-paper.
D is the movable cutter-blade pivotally supported, at x, at its handle-end (on the
extremity of which it carries the rollers q q) on a bearing k projecting from the outer
side of the head C³. This knife extends through the slots p p¹ p² and is controlled
at its free end by a spring k¹, the recoil of which tends to raise it; and the cutting

page_text: edge co-operates, for a purpose - hereinafter described, with the plate n forming the
stationary cutter. A cam-recess i (Figures 7 and 9) is formed in a side of the blade
of the knife D above its cutting-edge; and on the same side of the knife-blade,
adjacent to the cam-recess, is pivoted between its ends a finger i¹ to engage at one
extremity with a recess 22 in the inner side of the head C³ next to its slot p².
From the rod of there depend parallel stems t t on which is reciprocably confined
a head F¹ having a flange extending along about half of its rear upper edge. A
spring depends from the rod o and is bifurcated at its lower end where it bears
against the top of the head F" to straddle a spring-catch extending from the rod ot
to engage with a bell-crank shaped spring-dog pivoted between its ends to
the lower side of the head F¹ with one extremity in position to be engaged by the
catch and the other extremity 28 projecting into the path of the cam-recess i in the
blade of the knife D. On its base the head F1 carries rigidly a presser-plate F.
As will hereinafter more fully appear, when the cutter-blade D is lowered on its
pivot x, against the resistance of the spring k¹, the cam-recess i engages the end 28
of the spring-dog 20, thereby tripping the latter to disengage its end from the
spring-catch and free the spring i to permit it to force down the head F¹ and
presser-plate F. When the knife-blade is freed, it is raised by the recoil of its
controlling spring, and in rising it turns the finger upward, toward one end,
owing to the confinement of its other end in the recess 22, against the flange i³ of the
head F', thereby also raising the latter and engaging the end of the dog 16 with
the catch to hold the head of the presser-plate until the descent of the knife-
blade shall again trip the dog 26.
Between the heads C and C3, at their centers, is journaled a shaft G¹ for carrying
on a roller G the roll of paper G affording the supply from which to cut the lining-
strips H (Figure 11). The free end of this web is passed about a feed-roller I
journaled in the extensions of the heads C and C³. With this roller I there
co-operates a companion roller I¹ journaled at its opposite ends in boxes, indicated at g
and gl, respectively, in Figures 4 and 5, let into the heads C2 and C³ and yieldingly
held, to maintain accordingly, the roller I against the roller I, by springs g2 and g³.
The webs G is fed against stops f f adjustably supported on posts f¹f extending
from the heads C2 and C³.
In the space between the heads C3 and C¹ are housed the gears shown most clearly
in Figure 4. Of these the larger gear d is journaled on a stud v projecting from the
rear surface of the head C³; and the rear surface of this gear is recessed circum-
ferentially to afford a rim s against the inner surface of which, at opposite points,
bear spring-controlled friction-pawls c and c¹ (Figure 4). These pawls are pivoted
at v and v² to a lever K fulcrumed between its ends on the stud v and connected by
a link K' with a rock-shaft b, on the frame of the machine, through the medium of
an arm 6. From the rock-shaft b₁ extends the arm 62 containing the slot 63 from
which the arm is adjustably connected by a link 6 with an arm 6" extending from
the rock-shaft L, which is actuated at proper intervals by suitable connections u u¹
with a rod J2 of said Bredenberg machine. The gear dineshes with a pinion d' on
the end of the roller I which carries also a gear d² meshing with a similar gear d³
on the adjacent end of the roller I¹.
The head C² is adjustable toward and from the head C to adapt it to afford bearings
for rollers of different lengths.
The weight M shown on a lever M¹ extending backward from the front end of the
improved attachınent and fulcrummed at w¹ on a post w extending upward from the
frame of the machine, merely serves the purpose of assisting in holding up
the attachment to reduce the strain of its support on the cutter-head e.
The operation is as follows:
When the cutter-head e descends to sever the board-carrying web of fabric, which
is fed along the bed-plate a of the machine, all as in said Bredenberg machine, the
lining-applying attachment descends bodily with it. The rollers q on the handle-
portion of the cutter D contact with the web, which is then at rest, on the bed a and
turn the blade downward on the pivot a to cause it to cut a strip H from the web of

page_text: paper G which has previously been fed across its path up to the stops f in the manner
hereinafter described, in the rise of the attachment with the head e after the previous
operation. In the descent of the knife D its cam-recess i engages the dog at its
end to disengage its end from the catch and free the spring it to depress the
head F and force the presser-plate F down against the severed strip H to firmly
apply it to the cemented surface of the section of fabric H¹ between the boards H2 and
thus line the back of the book-cover H³.
In the rise of the attachment, by that of the cutter-head e, the spring ¹ raises the
cutter-blade D, thereby turning the finger i to raise also the head F¹ and reproduce
setting of the spring and engagement with the catch 2 of the end of the spring-
dog, then freed at its end is from the cam-recess i. After the attachment has
come to rest in its raised position, the rock-shaft L is turned to depress the
arm to the position thereof indicated by dotted lines in Figure 1, thereby,
through the connections b', 62, b b' and K₁ turning the lever K in the direction
to engage the pawls vv and the gear d and turn the latter to effect corresponding
turning of the rollers I and I¹ to feed the desired length of paper from the roll G
thereof to be subsequently cut, in the manner already described into a lining-strip H
and applied to the back of the book-cover.
Having now particularly described and ascertained the nature of the said invention
as communicated to me by my foreign correspondent and in what manner the same is
to be performed I declare that what I claim is:
-
1 In combination with a book-cover machine of the character set forth, an
attachment adapted to be supported on the reciprocating.cutter-head e of said
machine, for cutting and applying the lining H, said attachment comprising a roll
for the web of material for said lining, feed-mechanism for feeding at intervals
material from said roll, a cutter-device operated by the descent of said cutter-head
to sever from said web the fed section thereof forming a lining-strip, and a presser-
plate actuated by the cutting action of said cutter-device to apply said strip,
substantially as described.
2-In combination with a book-cover machine of the character set forth, an
attachment, supported on the reciprocating cutter-head e of said machine, for cutting
and applying the lining H, said attachment comprising a roll for the web of material
for said lining, feed-mechanism for feeding at intervals material from said roll, a
cutter-device comprising a spring-controlled pivotally supported blade having a
handle to bear against the bed of the machine in the descent of said cutter-head
and thereby actuate the blade to sever from said web the fed section thereof
forming a lining-strip, and a presser-plate actuated by said blade to apply said strip,
substantially as described.
3-In combination with a book-cover machine of the character described, an
attachment, supported on the reciprocating cutter-head e of said machine, for cutting
and applying the lining H, said attachment comprising a roll for the web of
material from said roll, a cutter-device having a spring-controlled pivotal blade
actuated by the descent of said cutter-head to sever from said web the fed section
thereof forming a lining-strip, and a presser-plate on a spring-pressed reciprocating
head carrying a spring-dog to engage a catch and projecting into the path of said
blade to be tripped thereby, substantially as described.
4-In combination with a book-cover machine of the character described, an
attachment, supported on the reciprocating cutter-head e of said machine, for cutting
and applying the lining H, said attachment comprising a roll for the web of material
for said lining, feed-mechanism for feeding at intervals material from said roll, a
cutter-device having a spring-controlled pivotal blade actuated by the descent of said
cutter-head to sever from said web the fed section thereof forming a lining-strip, a
cam on said blade and a pivotal finger thereon engaging at one end with the
attachment-frame, and a presser-plate on a spring-pressed reciprocating head engaged
by the free end of said finger and carrying a spring-dog projecting at one end into the

page_text: path of said cam and engaging at its opposite end with a catch, substantially as
described.
5 In combination with a book-cover machine of the character described, an
attachment, supported on the reciprocating cutter-head e of said machine, for cutting
and applying the lining H, said attachment comprising heads between which are
supported a roll for the web of material for said lining and feed-rolls for said web,
a cutter-device having a pivotal spring-controlled blade provided with a handle to
engage with the bed of said machine and carrying a pivotal finger engaging at one
end with one of said heads and containing a cam-recess, a presser-plate on a spring-
pressed reciprocating head engaged by the free end of said finger and carrying a
spring-dog projecting at one end into the path of said cam-recess and engaging at its
opposite end with a catch, and means for actuating said feed-rolls, substantially as
described.
6-An attachment for a book-cover machine for cutting and applying the lining H,
comprising, in combination heads connected together at intervals by rods and
provided with recesses extending upward from their lower edges, a roll for the
material G, and feed-rolls I and I' supported between said heads, a cutter D pivotally
supported near one end to extend through said slots and connected with a spring ¹
at its free end and having a handle-portion provided with a roller q, a finger i
pivoted on the cutter-blade and engaging at one end with a head, and a cam recess i
in the blade, a head F1 carrying a presser-plate F and reciprocably supported on one
of said rods and having a lip engaged by said finger and carrying a spring-dog,
a spring it engaging the head F¹, a catch 25 engaging said dog, and a stationary
cutter n, substantially as described.
7-In combination with a book-cover machine of the character described, an
attachınent supported on the reciprocating cutter-head e of said machine, for cutting
and applying the lining H, said attachment comprising heads C C¹ C² and C³ con-
nected at intervals by rods, a roll for the material G and feed-rolls I and I supported
between said heads, a gear d on a stud v on the head C³ meshing with a pinion d¹ on
the roll I, and a gear d² on said roll meshing with a gear d³ on the roll I', a lever K
fulcrumed on said stud and carrying the spring-pawls vl and v² engaging with said
gear d, said lever being connected with the rock-shaft L of the machine, stops ff, a
cutter D comprising a spring-controlled pivotally supported blade having a handle to
bear against the bed of the machine in the descent of said cutter-head, and a presser-
plate F on a spring-pressed head F¹ actuated by said blade, the whole being constructed
and arranged to operate substantially as described.
Dated this 10th day of January 1898.
BOULT & WADE,
Agents for the Applicant.