US 2233898 A
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Description (OCR text may contain errors)
March 4, 1941- F. D. PITT ET Ar. 2,233,898
` MULTIPLE UNIT LOOSE-LEAF BOOK Filed July 2, 1937 I (03@ @LL- Gttorneg Patented Mar. 4, 1941 UNITED STATES MULTIPLE UNIT LOOSE-LEAF BOOK Frederick D. Pitt and R Mo., assignors, by
oy T. Jones, Kansas City, mesne assignments, to
Wilson-J ones Company, Chicago, Ill., a corpora-v tion of Massachusetts Application July 2, 1
Our invention relates to improvements in multiple unit loose leaf books. It relates to loose leaf books of the type in which the leaves are removably retained by a supporting unit which serves as the back of the book.
It is adapted for use with a loose leaf book of the type provided with cooperating ring hooks which are removably insertible through perforations in the loose leaves.
One of the objects of our invention is the provision of a novel multiple unit loose leaf book to which additional units may be easily and quickly added, and which vpermits of the easy and quick detachment of one or more units.
Another object of our invention is the provision of a novel multiple unit loose leaf book in which the units are hingedly detachably connected with each other.
A further object oi our invention is the provision of a novel multiple unit loose leaf book which will have a minimum of thickness.
Another objectA of our invention is the provision of a novel multiple unit loose leaf book, each unit of which is provided with cooperating hooks which move to and from a leafrelease position and hook separating means that prevent the hooks of adjacent units interfering with the proper operation of the hooks of a unit with respect to which loose leaves are to be added or removed.
Still another object of our invention is the provision of a novel loose leaf book of the kind described, which is simple, cheap to make, strong, durable, not likely to get out of order, and which is efficient in its operation.
The novel features of our invention are hereinafter fully described and claimed.
Fig. 1 is a view, partly broken away, of a form embodying the invention in which the pair of cooperating ring hooks of adjacent units are in staggered relation, and the hooks of adjacent units, in the closed position, overlap each other, the separating members being perforated for receiving adjacent hooks.
Fig. 2 is a plan view of one of the separating members of the form shown in Fig. 1.
Fig. 3 is an end view of what is shown in Fig. l.
Fig. 4 is an enlarged section on the line 4-4 of Fig. 3.
Fig. 5 is a plan view of parts of a hinge back member and the spring back, of one of the units shown in Fig. 1, and the fastening means connecting said elements.
Fig. 6 is a section on the line 6-6 of Fig. 5.
Similar characters of reference designate similar parts in the different views.
In the form of our invention shown in Figs. l to 6, which is provided to obtain a ring book with a minimum of thickness, the units A', B and C are similar in construction to each other. Two book covers 20 and 2| are respectively provided With hinge plates 22 and 23 having barrels 24 and 25 disposed respectively between and aligned with barrels 2 at the outer longitudinal edges of the hinge back members I. Two pintles 26 and 21 are removably extended through the aligned barrels 2, 24 and 25, thus hinging the covers 20 and 2| to the units A' and C'.
The hinge back member I is flat, and, as shown in Figs. 5 and 6,is provided with inverted U shaped projections I3', which extend through holes I5 provided in the spring back plate 4, a fastening pin I6 being removably inserted under and against the projections I3 and resting on the plate 4. l
As shown in Figs. 1 and 4, the units A', B' and C' are disposed in staggered relation to each other, with the pairs of adjacent hooks IIJ of adjacent units in staggered relation to and, in the closed position, overlapping each other, as shown. l The hooks I0 respectively extend through slots II provided in the longitudinal edges of the cover plates 8. l
The separating members I8', are respectively releasably hinged to the pintles Il between the pairs of adjacent units. Pintle-engaging barrels I9 are provided on one longitudinal edge of each member I8'. Each member I8' is provided therethrough with holes 28 for respectively receiving adjacent hooks of adjacent units, when the hooks are in the closed position. This overlapping of the hooks I0, when closed, enables the book to be of less thickness, for like sized ring hooks, than would be possible with any other structure.
When it is desired to add another unit to the three units A', B', C' shown in Figure 3, a unit similar to one of these units is provided. This additional unit is provided with a hook separating member I8'.
The left cover 2I is removed by detaching the pintle 21 from the left ferrule 2 of the unit` C', and the new unit with its separating member I8' is substituted, the right ferrule 2 of the new unit engaging the left ferrule 2 of the unit C' by means of the pintle I1, on which is also mounted the separating member I8'. The cover 2I is then attached to the left ferrule 2 of the new unit by means of the pintle 21, thereby providing a four unit ring book. Additional units may be similarly added in the manner described. By reversing the operation, units may be detached from the ring book.
, To properly offset the hooks I0 of the added unit with respect to the adjacent hooks III of the unit to which the new unit is attached, the spring back plate 4 of the added unit, is made longitudinally adjustable on the hinge back member I', as for that matter are the spring back plates 4 of each of the units.
For effecting such longitudinal adjustment of the spring back plate 4, as shown in Figs. 1 and 5, the plate 4 adjacent to each end is provided With a longitudinal row of holes I5, four in number, arranged in pairs properly spaced for receiving therethrough the two adjacent inverted yU shaped projections I3 of the hingeI back member I', two pairs of such projections being provided on the hinge back member adjacent to its ends respectively.
As shown in Fig. 5, by withdrawing the pin I6, the plate 4 may be adjustedy toward the adjacentend of the member I', and the projections I3 of the latter extended through the second and fourth holes I5, and held in that position by inserting the fastening pin I6 under the proposition occupied by the unit C', Fig. 1, or it may be disposed in the position of the unit B', to adapt it to cooperative relationship with the particular unit to which it is to be attached.
With the employment of the means hereinbefore described for attaching the loose leaf holders to the back member I', each of said holders, by removing the fastening devices comprising the pins I B, may be detached independently of the others, without disassemblage of its parts or leaves held thereby, and without disconnecting the hinging means connecting the back members I with each other.
It will be noted, that as shown, each ring hook loose leaf unit has means for attaching it to the adjacent back member I' at a point between, spaced from, and independent of the longitudinal hinged edges of the back member. By means of this construction the loose leaf ring hook unit can be detached and another substituted for it without disassembling the book back members I' from each other.
This is a desirable function, as often it is desired to remove a ring hook unit for use independently of the book.
This means of attaching the ring hook units to thebook back members also permits the ring hooks to' be opened without interference by the hinged barrels at opposite sides thereof.
Other modifications of our invention, Within the scope of the appended claim, may be made without departing from the spirit .of our invention.
What we claim is:
In a multiple unit4 ring book of the .kind described, two similar units disposed parallel with each other1 and comprising each a back member, cooperating ring hooks, and means on said back member by which said hooks are supported so as to open and close transversely to said back member, said hooks of one of said units being in staggered relation to the hooks of the other unit with the hooks of one unit adjacent to the hooks of the otherY unit overlapping each other in the closed position, means hinging together the adjacent longitudinal edges of said back members, and a separating member hinged to said back members by said hinging means and disposed between the adjacent hooks of the two units and having therethrough holes for respectively receiving therethrough portions of adjacent hooks of adjacent units, when the hooks are in the closed position.
FREDERICK D. PITT. ROY T. JONES.