US2101804A - Bookbinding - Google Patents

Description

De?. 7, 1937. P. w BlDWELL v 2,101,804

BOOKBINDING Filed June 17, 1935 1N VEN TOR.

ATTORNEY.

Patented Dec. 7, 1937 PATE N T OFF! CE BooKINDING Paul W. Bidwell, Holyoke, Mass. Application June .17, 1935, serial No. 26,893

3 Claims. This invention .relates to improvements in book binding and is directed .more particularly to improvements in apparatus for assembling spiralv bindings and perforated leaves of a book.

'Ihe principal objects of the invention'are directed to the provision of a novel apparatus for screwing a helical or spiral binding member into a row of Aperforations provided adjacent the edge 0f a stack of leaves to form a book.

According to special features of the invention, the apparatus is constructed and arranged in a novel manner so as to be capable of efciently'and easily screwing a helical or spiral bindinginto the perforations of a stack of leaves of a book and there is provided automatic means for stopping 1 the operation of the apparatus when the binding member has been screwed into the perforations to the desired extent.

Various other novel features and advantages of the invention will be hereinafter more fully referred to in connection with the preferred form of the invention, reference being had to the ac'- companying drawing wherein:

Fig. l is a side elevational view of an apparatus embodying the novel features of the invention; Fig. 2 is a plan view of the apparatus shown in Fig. 1;

Fig. 3 is a partial transverse sectional elevational view of the apparatus shown in Figs. 1

-. and 2;

Fig. 4 is an enlarged sectional fragmentary'view.

to explain certain features of the invention;

Fig. 5 is a partial elevational view of one of the rolls of the apparatus; and A Fig. 6 is a plan view of the upper portion of a book showing the leaves perforated with spaced openings anda binding element which: is screwed into the perforations by the apparatus of this. invention.

invention will be fully described.

Side frames 2 are provided and. these are arranged in spaced relationV asv shown. AA driving shaft 4 is journalled in the frames. 2v for roi, tationand a pulley such as 6 may be provided on the shaft 4 which may be belted to a motor or other source of power. Of course, other means for driving the shaft 4 may be provided, if desired.

Lever arms 8 are oscillatable on the shaft 4 and their forward ends have a roll I0 journalled therein. A roll I2 is journalled in the side frames 2 below the roll I0.

A sprocket I4 provided on the shaft 4 and a sprocket IE provided on the roll I0 are connected Referring now to the drawing more in detail the by a chain i8 Yextending `therearound so that the roll VIll is driven lfrom the shaft 4. However, as stated, the arms 8' are oscillatable on the shaft li so that they and the rol-'l Ii] may still swing up and down for a .purpose to be described. 5

Another sprocket 20 is also provided on the shaft 4 while a sprocket 22 is disposed on roll I2. These sprockets 2l)V and 22 are`connected by a vchain 24 extending therearound so that the lower roll I2 is also driven from the shaft 4.

Brackets 30, provided on the upper sideV of the si-de frames 2, are slotted, as at 32, and adjush ing screws or bolts 34 extend through the slots into engagement with the frames to provide a means for securing the brackets 30 in various positions of adjustment. What may be called a guide roll 36 is .iournalled for rotation in the brackets 3i).

A table 38 is'disposed at the forward side of the apparatus and is adapted to support a book or books. rThe levers 8 haveears 42 and a bar 40 has beters.- U.

In the'form of the invention shown, with ref- 3 erence to Figs. 4 and 6 a book represented by L, which is provided with ay row of perforations P, is placed on the'table 38 with the end of the binding B started in the perforations, as shown. The con- 3 volutions of the binding are caused to bear against the guide roll 36 so as to position the binding B with reference to the lower oll I2, somewhat after the manner shown'in` Fig. 4.

Then the arms 8 and roll IU are allowed to be' lowered so thatthe upper roll I@ engages the binding B; Th'at is, the roll IIJy is causedto'contact the binding B so that the convolutions ofthe' binding member are engaged by the kgrooves liof` the roll I0. With the book L and binding mem: ber B thus disposed with reference to the rolls Iii and I2, which, as stated, are being rotated, the binding member B is caused to rotate and screwed into the perforations P.

When the binding member has been screwed into the perforations the arms 8 are elevated to move the roll I 0 upwardly so that the member Bis no longer rotated. The arms 8 may be moved downwardly and upwardly by any suitable means but, in the form of the invention shown, the arms 55 8 and its associated roll I0 tend to assume the operative position shown in Figs. 1, 3, and 4'by means of gravity.

In order to move the arms 8 and roll I0 upwardly there is provided a solenoid or magnet 50 having an armature 52 which is connected by a chain or the like 54 to the bar member 44. When the member 50 is energized to draw the armature 52 downwardly, the arms 8 carrying roll I0 are swung upwardly to an inoperative position. The solenoid or magnet E@ may be energized by connecting to a source of energyv and a manually-operated switch may be provided to open and close the circuit.

It is desired according to one feature of this invention that the said circuit be opened when the binding member B has been screwed into the perforations P to the desired extent. That is, when the leaves L and binder B have been assembled so that a book is formed, it is desirable to cease the screwing action in order that the member B does not screw too far to project beyond the last perforation in the row. Also, it is just as desirable that the screwing action continue long enough so that the binder B extends the entire le-ngth of the row. x

To this end there is provided a circuit-closing device indicated generally by Gllassociated withL the table38. This may consist of a contact 62 and a yieldable contact member 64, the latter of which extends inwardly from the table 38'so that a free end thereof lies in the path of the binding B. The said members 62 and B4 are preferably suitably insulated as at 65 and a bolt 66 extends through a slot $8 provided in the table in order that the circuit-closing device may be adjusted longitudinally of the table. The device is preferably connected in series with the solenoid 50.

The leaves L and binder B are associated in the manner shown in Fig. 6 and then located onthe table 38 in some definite position relative to the device 68, as by means of a line or mark on the table or by guides. and l2 are caused to engage the member B and rotate the same until it is screwed into the per-l forations P forming the book to the point where the foremost end of the member B contacts the member 64 of the circuit-closing device.A

At this point the said device, being connected in series with the-solenoid 50, closes the circuit to energize the solenoid and cause the arms ,8 and the roll l@ to be elevated.V In this way the rotation of the binding member B is stopped and it is possible to prevent the binding being carried beyond apredetermined point with refn erence to the leaves.VV

WhileI have described the invention in great detail and with respect to a preferred form thereof,` it is not desired to'be limited thereto since many changes and modifications may be made therein without departing from the spirit and scope of the invention. What it isdesired to claim and secure by Letters Patent of the United States is:

Then the rotating rolls l0' 1. An apparatus for binding the perforated leaves of a book with a preformed spiral binding member comprising in combination, a horizontal support for said book. a grooved roll journalled for rotation adjacent said support, an arm swingable relative to said support, a second grooved roll journalled for rotation therein for co-operating with the first-named roll to advance a spiral binding along the perforations of the leaves of a book on said support, electrically operated means to swing said arm to separate said rolls when a binding has advanced along said support a predetermined distance, the said means including a circuit-closing device on said support engageable by and actuated by the spiral binding as the same is advanced along the support a predetermined distance and a circuit connected to the electrically-operated means and circuit-closing device, all adapted and arranged whereby the circuit-closing device is actuated by a spiral binding when the same has advanced along the support a predetermined distance to cause the said rolls to be separated.

2. An apparatus for Ybinding the perforated leaves of a book with a preformed spiral binding member comprising in combination, a horizontal support for said book, a grooved roll journalled for rotation adjacent said support, an arm swingable relative to said support, a second grooved roll journalled 4for rotation therein for co-operatin'gwith the first-named roll to advance a spiral binding along the perforations of the leaves of a book on said support, electrically operated meansY to swing said arm to separate said yrolls when a bin'dinghas advanced along said support a' predetermined distance, the said means including'a circuit-closing device on said support engageable by and actuated by the spiral binding as the same is advanced along the support a predetermined distance and a circuit connected tothe electrically-operated means and circuitclosing device,l all adapted and arrangedwhereby the circuit-closing device is actuated by a spiral 'binding when the same has advanced along the support a predeterminedrdistance to cause the said rolls to be separated, the said circuit-M closing device including relatively movable con` tact points and means to facilitate adjustment of the device along said support.

3. An apparatus for binding the perforated leaves of a book with a preiormed spiral binding member comprising in combination, a horizontal support for said book, agrooved roll journalled,

for rotation adjacent said support, an arm swingable relative lto said support,.a second grooved4 roll journalled for rotation thereinrforgcc-operating with the first-named roll to, advance a spiral'binding along the perforations of the leaves..

of a book on said support and electrically operated means to swing said arm to separate said rolls when a binding :has advanced along said support a predetermined distance, the said means including a solenoid having a slidable member connected to said arm. a

PAUL W. BIDWELL.

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