US2051551A - Manifolding sales book - Google Patents

Description

Aug. 18, 1936. E. R. EVANS MANIFOLDING SALES BOOK Filed Dec. 20, 1953 INVENTOR. .EYAN 2. EVANS,

BY M, 2am, {Md-w.

v A TTORNEYS.

Patented Aug. 18, 1936 UNITED STATES PATENT OFFICE MANIFOLDING SALES BOOK Application December 20, 1933, Serial No. 703,177

17 Claims.

This invention relates to improvements in manifolding books and the like, and with respect to its more specific features relates to improvements in leaf arrangement and leaf holding devices to be used in association with such books.

One of the objects of the invention is to provide a manifolding book provided with an improved practical construction for supporting original and duplicate record sheets in correct alignment, and which will hold the carbon or transfer sheet in convenient manifolding position.

Other objects are the provision of a manifolding book having improved arrangements for employment of a continuous zigzag folded pad of paper having a clamp which will hold the pad firmly in position, which will serve to align the sheets comprising the pad, and which will firmly retain transfer material in convenient position ready to be. interleaved between the sheets of the pad.

According to another feature of the invention an improved holding device for the record and transfer leaves is provided, having a. practical and simple arrangement for opening the device and for holding it opened, during adjustmentsof the leaves.

Another improvement resides in a novel supply holding means well adapted for pads of continuous zigzag folded record leaves, whereby the leaves may be successively freed in pairs of original and duplicate leaves attached end to end for insertion of the supported transfer leaf, and whereby said pairs may be thus freed without interference with or damage to the transfer leaf, and with equal facility at all different stages of supply consumption.

Among other objects is the provision of a practical manifolding book of sturdy but economical construction, capable of using inexpensive replaceable pads of paper, convenient of operation, and furnishing accurate and legible record copies.

The invention accordingly comprises an article of manufacture possessing the features, properties, and the relation of elements which will be exemplified in the article hereinafter described and the scope of the application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention, reference should be had to the following detailed description taken in connection with the accompanying drawing,

in which:

Fig. 1 is a perspective view of a manifolding book embodying certain features of the invention and showing the cover open;

Fig. 2 is an enlarged fragmentary longitudinal vertical section of the manifolding book (125- closed in Fig. 1, showing more in detail the novel clamp embodying features of the invention;

Fig. 3 is a perspective view similar to Fig. 1, of a modified form of manifolding book, the upper cover member being open and partially broken away; and

Fig. 4 is a fragmentary perspective view from the rear of the clamp shown in Fig. 3, disclosing certain details in the arrangement and construction of the clamp.

Referring more specifically to the drawing, a cover or back is provided preferably having upper and lower cover portions I0 and H. These may be formed of suitable backing material such as cardboard or the like with a protective cov- 0 ering of flexible and pliable material such as oilcloth. A back portion l2 of similar construction is hinged to the upper and lower members at points 13 and M. The hinged portions are composed of flexible or pliable material such as the oilcloth covering without the backing.

A clamp I5 is provided to hold a supply pad or book N5 of record paper and a carbon sheet I! in convenient manifolding position. This is so constructed that although the carbon sheet is held in convenient manifolding position, nevertheless it will not be dislodged, damaged or interfered with in any way when the sheets of the record pad are removed. To accomplish this, upper and lower clamping jaws l8 and i9 35. are hingedly secured together by the pivot 20 extending transversely of the book. The clamping jaws are preferably in the form of angle plates having flanges or plates connected by the pivot 20 and inwardly extending supply gripping flanges. The lower flange or plate is secured to the lower cover member-by suitable fasteners such as the rivets 2| adjacent the hinge portion I9. The upper plate or jaw i8 is formed with an upturned lip 22 serving as a handle for grasping and opening the jaws. A spring 23 mounted on the pivot. 20 serves to normally press the clamping plates or jaws inwardly to closed position. A third-clamping plate or grip plate 24, preferably also in the form of an angle plate, is movably mounted on the clamp 15. A convenient way to mount it is to connect it pivotally at one of its flange edges to the pivot 20,- from which it extends upwardly with its upper face normally underlying 1 the lower face of the upper clamp ns law, as shown. The grip plate24 is not presseddirectly by the spring II, but this spring acting upon the upper clamping jaw l8 forces that member down upon the upper face of grip plate 24, forcing it downwardly. In order to hold the carbon paper more securely in position, as will be later described, the upper surface of the grip plate may be provided with projections 25 cooperating with recesses or depressions 23 formed in the underface of the clamping jaw ll.

In the modification shown in Figs. 1 and 2, a plurality of posts 21 are mounted on the lower clamping .jaw or base is and extend upwardly toward the grip plate and upper clamping jaw.

' These. cooperate with apertures 23 formedin when the jaws are in closed position. While the posts may be employed whether or not a zigzag folded pad of paper is used, it is to be understood that they may be omitted as in the forms later under.

described. When they are so omitted, the lower clamping jaw is preferably formed with an upwardly projected serrated edge 35 serving to firmly' grip the pad of paper, as more fully we described below.

In order to hold the pad of paper smooth and in proper position, a bail 3| may be secured to the lower cover member. This may be formed of light wire pivotally secured in the sides of the lower cover member and extending toward the free end thereof so that its end will rest upon the edges of the sheets of paper used in the book. A spring (not shown) is preferably employed to normally press the free end of the bail downwardly, thereby firmly gripping the free ends of the paper. It will be understood that the bail 3| may be omitted entirely as shown for example in Fig. 3.

The manifolding book herein described is especially well-suited for use with a continuous zigzag folded record supply pad such as the pad when used in the modification shown in- Fig. 4,

the apertures are unnecessary.

In using this pad the operator will grasp the handle portion 22 and raise the upper claimping jaw to elevated position. He will then raise the inner grip plate 24 and insert the pad there- If the clamp is provided with posts 21, the operator will be sure the posts project through the apertures 28 formed in the pad. He will then release the grip plate and place a sheet oftransfe'r material such as the carbon leaf i1 between the innerv grip plate 24 and .the outer gripping jaw .i8, and then release the handle member 22. The spring 23 will press the upper clamping jaw downwardly until it presses the carbon sheet against the inner grip plate 24 forcing the latter downwardly into contact withthe upper surface of the pad ii. .The carbon sheet will then be firmly gripped between the grip plate 24 and the clamping jaw 18." Due to the pressure exerted upon the grip plate 24 bythe upper clamping jaw I 3, the pad It will be firmly held between the grip plate and the lower clamping j aw.

Where the posts 21 are provided, it will be seen that the pad will be securely held in position, and the sheets of the pad will also be held in place. I When the paper has been thus inserted, it will be seen that the carbon sheet l1 overlies the pad of paper but that it is in convenient manifolding position so that the operator can grasp the first 1 original record sheet 33 and by exerting a slight pull thereonrelease it from the clamp. The carbon sheet can then be interleaved between the original sheet 33 and the underlying duplicate sheet 34, as shown in Figs. 1 and 4, whereupon l the entry'can be made upon the original sheet and will be duplicated upon the leaf 34.

When the posts 21 are employed, the sheets or leaves of the record supply pad will bmaintained by these posts in correct registration with 2 each other, and also the pad will be held in cor- 'rectly centered and aligned position in the holder. The top original record leaf 33 will ordinarily be adjusted in its operative position shown in Fig. 1, when the supply pad and record 2 leaf are inserted into the binder. If this top original leaf is inserted under the intermediate clamping or grip plate 24, it may be readily removed by pulling it out after the clamp isset, whereupon it is readily adjusted to the position 3 shown in Fig. 1. I

After the desired inscriptions have been made upon thetop original leaf 33, and thus transferred by the carbon leaf to the next underlying duplicate leaf 34, the two inscribed record leaves 3 may be quickly and easily withdrawn from their clamped position in the binder. This may be accomplished by pulling the inscribed leaves outwardly away from the clamp, whereupon the gripped ends of the leaves will slide from beneath 4 the grip plate 24, without disturbing in any way the transfer leaf l1. The withdrawal of the two inscribed record leaves as described will at the same time withdraw the clamped end of the next underlying original record leaf 33, which is 'at- 4 tachecl to the end of the inscribed duplicate leaf at the adjacent fold line 32. During this withdrawal of the record leaves, the corresponding holes 23 will be torn out at the upper or top ends of .the leaves by engagement with the posts 21. These holes, therefore, are ordinarily placed quite close to the adjacentedges of the leaves in order that the tearing out of the holes during leaf removal may be easily accomplished and without objectionable mutilation of the leaves.

In order that the record leaves may be gripped at their outer or lower ends to the exclusion of the transfer leaf during leaf removal, the outer end of the transfer leaf preferably terminates some little distance inside the adjacent ends of g the record leaves, as shown in the drawing. This provides a grip-extension on the record leaves positioned beyond the end of the transfer leaf. Of course, the inscribed record leaves could be withdrawn from the binder by swinging the 6 original leaf 33 outwardly into alignment with the. duplicate leaf and then pulling outwardly upon veither the original or duplicate inscribed leaves. The result would be the same as before described in releasing the gripped end of the 7 duplicate inscribed leaf and atthe same time the gripped end of the next adjace'nt-uninscribed leaf. r

After removal of the inscribed original and duplicate leaves, they may together be detached 7 from the next original leaf by severance along the weakened severance line 32 at the fold line. The removed original and duplicate leaves may then, or at any convenient time, be separated from each other by severance along the weakened line 32. The free, uninscribed original leaf 33 is then placed in inscribing position over the carbon leaf, whereupon the book is set ready for the entry of another transaction.

Due to the fact that the inner grip plate 25 is provided between the pad and the upper clamping jaw, and between the pad and the carbon sheet, the releasing of the sheets of the pad from the grip of the clamp will not in any way disturb the carbon sheet. The grip plate thus functions as a shield for the protection of the carbon sheet, especially during withdrawal of the record leaves from clamped position and placing thereof in inscribing position. It will be observed, further, that when the sheets of the pad are pulled from beneath the grip plate 24, they will not become smudged or soiled by the carbon paper due to the fact that the grip plate acts as a shield to protect the record sheets from the under surface of the carbon paper.

In a preferred embodiment of the invention as illustrated in Figs. 3 and 4, the general arrangement of elements is similar to that already described above in connection with Figs. 1 and 2, and corresponding parts are indicated by the same reference numerals with the addition of the index a.

The posts 27 of the prior embodiment are omitted in the form shown in Figs. 3 and 4, the record supply pad lBa. being retained in position by a different means. For this purpose, the lower clamping plate l9a is formed with projections or serrations at its pad gripping surface. These serrations are illustrated in the form of teeth positioned at the gripping edge of the plate i911, inclining upward slightly so as to bite or grip flrmly into the lower face of the supply pad. The gripping surface of the intermediate grip plate 24a may be a smooth frictional surface substantially the same as described above for the plate 24.

It will thus be seen that the record supply pad lBa will be retained in its correctly aligned position in the binder by virtue of the serrations 35 in cooperation with the gripping action of the upper gripping jaws la and 24a under the action of the tensioned spring 23a. This gripping and biting action of the teeth or serrations is effective in keeping the pad in correct position during withdrawal of the pairs of inscribed record leaves from gripped position described above in connection with Figs. 1 and 2. Thus the posts 21 may be entirely dispensed with, and yet the supply pad retained effectively in position at all stages of consumption thereof.

In order that the transfer leaf lla may be more securely held in position, the intermediate grip plate 24a. may be provided at its upper surface with small projections 36, aligned respectively with openings or apertures 31 in the top plate lBa. These apertures 31 preferably pass entirely through the plate so as to avoid clogging or fouling during continued use. The cooperating projections and apertures serve to retain the transfer leaf more firmly in position under the gripping action of the binding clamp.

In order further to assure the continued correct positioning of the supply pad 16 or 16a, the back cover Ila of the binder may be formed at its outer or free end with one or more upwardly extending lugs 38 positioned for cooperating with the outer end of the pad. These positioning lugs 38 are shown as angle lugs positioned respectively at the corners of the back and cooperating with the pad at both its end and side edges, thus serving to retain the pad securely in position and to prevent its displacement during withdrawal of the inscribed record leaves from gripped position in the clamp.

An improved operating mechanism for the clamp is shown in Figs. 3 and 4, and may, of course, also be applied to the form of Figs. 1 and 2. This improvement includes an operating lever or handle 39 which may be in the form of a light relatively stifi angle plate as shown, and is pivoted as by a rivet or pin 40 to the pivoted flange of the upper angle clamping plate Me. This operating handle may thus be folded into inoperative position as shown in Fig. 3, or swung on its pivot into operative position as shown in Fig. 4. The operating lever 39 is provided at one end with an extension or lug H positioned for cooperation with a retaining-lug 52 attached to the vertical or pivoted flange of the clamp plate i9a as clearly seen in Fig. 4. The lug 42 may be very conveniently and effectively formed by slitting the metal of the flange and offsetting a portion thereof from the general plane so as to form the lug.

In general the operation of the embodiment of Figs. 3 and 4 is similar to that of Figs. 1 and 2 as above set forth. However, when it is desired to insert a new record supply pad, or a carbon sheet, or to make new adjustments of either, the clamp may be easily opened against the tension of the spring by use of the operating lever or handle 39. For this purpose the handle may be swung upwardly from its folded position so as to bereadily accessible, and to function as a handle for swinging the upper clamp jaw iBa upwardly into its releasing position. During this opening of the clamp the handle need not at first be swung to its completely raised position as in Fig. 4, but is utilized in its partially raised position to swing the clamp jaw to fully released position. The handle will then be swung to its fully raised position, whereupon the locking extension M will engage behind the retaining lug 42 and the clamp thus locked in open or released position. Any desired adjustments of the supply pad or transfer leaf may then be made,-or new supplies may be inserted. The locking or holding device may then be released merely byswinging the handle 39 downwardly to its folded position, whereupon the spring operates to close the clamp and to engage and hold the supplies in position.

In the different embodiments of the invention, it will be noticed that the intermediate grip plate or shield 24, 24a preferably terminates at the outer edge of its gripping flange slightly beyond the corresponding edge of the gripping flange of the upper gripping jaw l8. In other words, in the illustrative embodiments herein disclosed, the intermediate gripping plate or flange is slightly wider than the overlying gripping plate. This arrangement is of particular functional advantage in holding the record supply pad in best operative position and in the protectionand holding of the transfer'leaf. One of the advantages of this arrangement is that the record supply pad is always engaged and held by the gripping surface adjacent the outer edge of the gripping plate 24 at different stages of consumption of the supply pad. As the sup- 75.

Therefore, a uniform frictional gripping effort is maintained upon the upper surface of the supply pad, and the functioning during with- 4 l5 drawal of the record leaves from clamped position as above described will be uniform at all stages of supply pad consumption.

Another advantage of this arrangement of the clamping plates is that thetransfer leaf is more adequately and effectively held and shielded from injury. With this arrangement, the carbonized surface of the transfer leaf is never pressed into direct engagement with the record leaf by action of the clamping plates, as'might be the case under certain conditions if the upper clamping plate l8 extended at its free marginal edge beyond the adjacent edge of the clamping plate 24.

vIt will be noticed that the gripping marginal portion of the clamping plate 24 or 24a is smooth throughout its extent and free from serrations or projections, or similar formations tending to bite into the surface of the paper. Therefore, a smooth gripping surface is always presented at the upper pad surface, providing a uniform restraint at all times against withdrawal of the record leaves, yet permitting such withdrawal when sufllcient tension is exerted upon the leaf. In case it is desired to support the transfer sheet in some diflferent manner, as

for example at the longitudinal edge of the book, the intermediate gripping plate 24 or 24a may be omitted, in which case the top clamping plate I8, I81; will be constructed in a manner 5 similar to that described for the intermediate plate, and will function in a similar manner.

It will be observed that the teeth or serrated portions 35 of the lower clamping plate in Figs.

3 and 4 may, as shown, be positioned approxi- 5 mately in opposition to the frictional gr pping surface of the upper clamping plate. In this manner the record pad will be forced by action of the springs 23a to cause these serrations to bite slightly into the lower pad surface so as 55 to provide a firmer or more positive gripping action at the lower pad surface than at the upper surface. This arrangement provides very effectively for holding the supply pad in its original gripped position at all times and particularly 60 when the inscribed leaves are beingwithdrawn from gripped position from the top of the pad as above described. Displacement of the pad and the leaves thereof from correct position is thus guarded against, while the inscribed leaves (35 may be very easily and quickly withdrawn. This construction and arrangement is particularly ad-.

be understood that other types of paper supplies, such as loose sheets of paper, may be employed.

Since certain changes may be made in the above article and different embodiments of the invention could be made without departing from 5 the scope thereof, it is intended that all matter contained in the above description or shown inthe accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

Having described my invention, what I claim 10 as new and desire to secure by Letters Patent is:

1. In a manifolding book, in combination, clamping plates for record 'and transfer leaves including two outer, movably connected clampingplates and an interposed movably connected l5 clamping plate cooperating in clamping relation with each outer plate for separately gripping the record and transfer leaves, and yielding means cooperating to urge said plates into clamping relation with each other, means for moving said 20,

plates into unclamping position and holding with each outer plate for separately gripping the record and transfer leaves, yielding means cooperating to urge said plates into clamping relation with each other, an operating handle movably connected to one of said outer clamping plates to move it to unclamping position, a hold- 353 ing device operatively connected to said handle and a lug connected to another of said clamping plates and cooperating with said holding device to hold the plates in unclamp'ing position to permit adjustment of the leaves. 40

3. In a manifolding book, in combination, clamping plates for record and transfer leaves including two outer, movably connected clamping plates and an interposed movably connected clamping plate cooperating in clamping relation with each outer plate for separately gripping the record and transfer leaves, yielding means cooperating to urge said plates into clamping relation with each other, an operating handle pivoted'to one of said outer clamping plates for moving it into unclamping position, and having a,locking extension and a lug connected to another of said clamping plates and cooperating with said 1ocking extension when the handle is swung on its pivot so as to hold the plates in unclamping position during adjustment of the leaves.

4. In a manifolding book, in combination, clamping plates for record and transfer leaves including two outer, movably connected clamping plates and an interposed movably connected 00 clamping plate cooperating in clamping relation with each outer plate for separately gripping the record and transfer leaves, one of said outer plates having gripping serrations for engagement posite surface of said supply book so as to permit ready withdrawal of individual record leaves from held position without disturbing the others,

' said interposed clamping plate and the other outer plate cooperating to clamp the transfer leaf in transfer position, and the outer gripping margin of said interposed clamping plate extending outward slightly beyond the adjacent margin of said other outer clamping plate so as to engage the supply book to the exclusion of the last mentioned plate, and means cooperating to hold said plates in clamping relation with each other.

5. In a manifolding book, in combination, two clamping angle plates mounted on the book and having clamping flanges and pivotally connected flanges, a clamping plate interposed between said angle plates and movably connected theretoand providing therewith means for separately clamping a record supply book and a transfer leaf, resilient means urging said plates into clamping relation, cooperating holding means connected to each of said angle plates for holding them separated in opposition to said resilient means, and means for setting said holding means in holding and releasing conditions.

6. In a manifolding book, in combination, two clamping angle plates mounted on the book and having clamping flanges and pivotally connected flanges, a clamping plate interposed between said angle plates and movably connected thereto and providing therewith -means for separately clamping a record supply book and a transfer leaf, resilient means urging said plates into clamping relation, an operating handle pivoted to one of said angle plates for effecting separation of said clamping flanges'and being swingable upon its pivot into operative position or into folded inoperative position, a holding lug connected to the other angle plate, and a movable holding device operatively connected to said handle for moving it to holding or releasing position and engageable with said holding lug to hold said clamping flanges in releasing position.

7. In a manifolding book, in combination, two clamping angle plates mounted on the book and having leaf-clamping flanges and pivotally connected flanges, resilient means urging said plates into leaf-clamping relation, an operating handle pivotally connected to one of said angle plates for effecting separation of said clamping flanges and being swingable upon its pivot to operating position or into folded inoperative position, a holding lug connected to the other angle plate, and a movable holding device operatively connected to said handle for moving it into holding or releasing position and being engageable with said holding lug to hold said clamping flanges apart in releasing position.

8. In a manifolding book, in combination, two clamping plates mounted on the book and including an angle plate having angularly disposed fianges one of which is pivoted at its outer edge to the other or base clamping plate, said angle plate having its other or gripping flange positioned in opposition to said base plate for receiving and gripping a supply pad of leaves, said base plate having serrations positioned for holding engagement with the lower surface of the pad, and said gripping flange having the gripping surface at its gripping margin smooth and free of serrations presenting a smooth frictional gripping surface to contact with the upper surface of the pad, whereby the upper leaf of the pad may be pulled from gripped position without disturbing the remaining leaves, resilient means urging said clamping plates into clamping relation, cooperating holding means connected to said clamping plates for holding them in open position in opposition to said resilient means, and means for setting said holding means in holding and releasing conditions.

pair of clamping jaws, a grip-plate interposed between said jaws, in. clamping relation to each of said jaws, and a plurality of posts secured to one of said jaws and projecting toward said grip-plate, said grip-plate and said other clamping jaw being formed with passage-apertures in the paths of said posts.

10. In a manifolding book, in combination, movably connected clamping plates mounted on the book and cooperating in clamping relation with each other for gripping a supply pad of loose record leaves, one of said clamping plates having gripping serrations for biting into the surface in gripping and holding relation with said supply pad, the other plate having a smooth gripping surface free from leaf-engaging roughness or protrusion and opposed to said gripping serrations for gripping engagement with the opposite surface of said supply pad, whereby the record leaf adjacent to said smooth surface is less positively held than is the opposite face of the supply pad, so as to provide for ready withdrawal by pulling action of individual record leaves next to said smooth surface, from gripped position without disturbing the other leaves or the supply pad, means cooperating to hold said plates in clamping relation to each other, a back upon which the supply pad rests, and a positioning and retaining lug on said back positioned for engagement with the outer end edge of the supply pad to assist in holding the latter in place during withdrawal of the individual record leaves.

11. In a manifolding book, in combination, a pair of clamping jaws, a grip plate interposed between said jaws and in clamping relation with each jaw, so as to separately grip and hold a transfer leaf and a supply pad of loose record leaves, said grip plate being positioned for yielding engagement with the adjacent loose record leaf whereby the latter may be withdrawn while the lower leaves remain clamped in position, and a plurality of posts positioned to extend through apertures in said supply pad and secured to one of said jaws and projecting toward said gripplate, said posts terminating at their upper ends beyond the upper surface of said supply pad while said pad is held by'said grip plate, so as to retain the lower leaves in position and to prevent displacement thereof by the withdrawal of said adjacent record leaf.

12. In a manifolding book, in combination, movably connected clamping plates mounted on the book and cooperating in clamping relation with each other for gripping a. supply pad of loose record leaves, one of said clamping plates having gripping serrations for biting into the surface in gripping and holding relation with said supply pad, the other plate having a smooth gripping surface free from leaf-engaging roughness or protrusion and-opposed to said gripping serrations for gripping engagement with the opposite surface of said supply pad, whereby the record leaf adjacent to said smooth surface is less positively held than is the opposite face of the pad so as to provide for ready withdrawal by pulling action of individual record leaves next to said smooth surface from gripped position .while other leaves of the pad remain undisturbed. and held in position by the gripping action of said serrations, means cooperating to hold said plates in clamping relation with each with each other for gripping a supply pad of loose record leaves, one of said clamping plates having gripping serrations for biting into the surface in gripping and holding relation with said supply pad, the other plate having a smooth gripping surface free from leaf engaging roughness or protrusion and opposed to said gripping serrations for gripping engagement with the opposite surface of said supply pad, whereby the record leaf adjacent to said smooth surface is less positively held than is the opposite face of the pad so as to provide for ready withdrawal by pulling action of individual record leaves next to said smooth surface from gripped position while other leaves of the pad remain, undisturbed and held in position by the gripping action of said serrations, means cooperating to ,hold said plates in clamping relation with each other, and a leaf retaining post positioned for engagement with apertures in leaves of said supply pad so as to avoid displacement of the leaf adjacent to that being pulled from clamped position and also to avoid displacement of the other leaves incident to the leaf withdrawing action.

14. In a manifolding book, in combination, movably connected clamping plates mounted on the book and cooperating in clamping relation with each other for gripping a supply pad of loose record leaves, one of said clamping plates having gripping serrations for biting-.into the surface in gripping and holding relation with said supply pad, the other plate having a smooth gripping surface free from leaf engaging roughness or protrusion and opposed to said gripping serrations for gripping engagement with the opposite surface of said supply pad, whereby the record leaf adjacent to said smooth surface is less positively held than is the opposite face of the pad so as to provide for ready withdrawal by pulling action of individual record leaves next to said smooth surface from gripped position while other leaves of the pad remain undisturbed and held in position by the gripping action of said serrations, means cooperating to hold said plates in clamping relation with each other, a leaf retaining device positioned for engagement with the leaf of said supply pad which is adjacent to the leaf being pulled from clamped position between said clamping plates, so as to avoid displacement of said adjacent leaf incident to the leaf withdrawing action,

means urging said plates into leaf clamping relation, an operating handle pivotally connected to one of said plates for effecting separation of said plates, and being swingable upon its pivot to operating position or into folded inoperative position, a holding ing, and a movable holding device operatively connected to said handle for moving it into holding or releasing position, and being engageable with said holding lug to hold said clamping plates apart in releasing position.

16. In a manifolding book, in combination, a leaf clamping device including two movably connected clamping plates, yielding means cooper-- ating to urge said plates into clamping relation with each other, an operating handle pivoted to one of said clamping plates for moving it into unclamping position, and having a locking extension, and 2. lug cooperating with said locking extension when the handle is swung on its pivot so as to hold the plates in unclamping positionduring adjustment of the leaves.

17. In a manifolding book, in combination, a leaf clamping device including two movably connected clamping plates cooperating in clamping relation with each other, yielding means cooperating to urge said plates into clamping relation with each other, an operating handle movably connected to one of said clamping plates to move it to unclamping position, a holding device operatively connected to said handle, and a lug cooperating with said holding device to hold the plates in unclamping position to permit adjustment of the leaves.

' EVAN R. EVANS.

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