US905663A - Loose-leaf binder. - Google Patents

Description

I'. H. CRUMP.

LOOSE LEAF BINDER.

APPLIUATIOI FILED Jun 1s, 190s.

905,663. Patented Dec.1,1903.

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FRANK H. GRUMP, OF LOS ANGELES, CALIFORNIA.

LOOSE-LE AF BINDER.

Specification of Letters Patent.

Patented Dec. 1, 1908.

Application filed June 16, 1908. SealNo. 438,755.

To all whom 'it may concern.'

Be it known that I, FRANK H. CRUMP, a citizen of the United States, and a resident of Los Angeles, in the county of Los Angeles and State oi California, have made certain new and useful Improvements in Loose-Leaf Binders, of which the following is a specification. i

My invention is an improvement in loose leaf binders and consists in certain novel constructions and combinations of parts hereinafter described and claimed.

The object of the invention is to provide means for binding loose leaves having perforations in their edges, instead ofthe usual slotted openings, and for holding the binders in proper spaced relation in respect to each other and for permitting the removal of either of the binders without disturbing the other, the leaves being inserted by moving longitudinally on the posts instead of perpendicularly thereto.

' Referring to the drawings forming a part hereof-Figure 1 is a perspective view of the improvement, Fig. 2 is a plan view of the upper lamina of a binding plate, Fig. 3 Ais a similar view of one of the inner laminae, Fig. 4 is a similar view of the spacing blocks, Fig. 5 is a similar view of the locking slide, Fig. 6 is a similar view of the other inner lamina, and Fig. 7 is a similar view of the bottom lamina, Fig. 8 is a section through the binder posts and the end of the binding plates, Fig. 9 is a sectional view of a portion of the post and the extension member, Fig. 10 is a section on the line 10-10 of Fig. 8, and Fig. 11 is a plan view of the key. p

The present embodiment of the invention comprises a top binding plate A, and a bottom binding plate A the plates bein similar in construction and connected wit backs B, B between which and the binding plates are received the loose leaves B2. Each of the binding plates consists of an outer and an inner lamina a provided near each end with a circular opening a. and inner laminae ai* having a central rectangular out away portion a which portion is connected with one of the 4ends of the lamina by a slot ai", the slot having lateral extensions a at approximately its center. The inner laminae are spaced apart by blocks a7, as, a9, the block a7 being rectangular in form and extending from the end of the cut away ortion to the end of the lamina, and the b ocks a7, as are also rectangular in form and are arranged between the inner laminae on each side of the out away portion. l

The blocks a are arranged on each side of the slot a5, and are provided with lateral recesses al corresponding to the recesses a, The laminas and the plates are provided with registering openings, through which extend rivets or screws for securing the laminee together. Y

The slide locking bar (1,12v is adapted to move within the cut away portion of the laminas a3, and is provided near each end with elliptical openings 0,13 which register with the openings a of the outer lamina and one end of the bar is provided with a threaded longitudinal opening al, in which is threaded a in a, provided with a rigid collar a,16 an a square head 0,17.

4 The laminae and the blocks and the slide bars are assembled in the order shown in Figs. 2 to 7 inclusive, the slide bar moving in the cut out portions a of the inner laminae and being limited in its movements by the ends and sides of the cut away portion and the blocks a7, 0.8, 0.9. The collar al is arranged in the recesses a and a, thus preventing longitudinal movement of the pin @15 with respect to the binder plates.

The extension posts comprise an inner eX- ternally threaded member' c and an outer internally threaded member c each of the sections or members being provided with a head c2 kerfed as at c3 to ermit engagement by the driving blade d oipthe tool D to be presently described. The member or section c, is provided with a flange c, having integral therewith a jacket or sleeve c5 which s ips over the outer member c as indicated 1n he tool D before mentioned, consists of the driving blade d referred to and a portion d1 provided with a square socket d2 for engaging the square head a" of the pin, and the tool is also provided with a curved arm d3 having a point d4 which is adapted to engage one of a series of openings e of an eX- tension E for the extension post, the said eX- tension comprising a hollow internally threaded portion e of the same diameter as the portion c, and a solid externally threaded reduced portion e2 adapted to engage in the ortion c as shown in Fi 9 The portion c 1s adapted to engage in t e portion e of the extension.

In operation to insert or remove leaves from the binder, the pin L15 of either the top or bottom binder plate is turned by thekey, it bein understood that the two binders are precise y the same, which moves the edges of the elliptical openings of the locking bar out of engagement with the heads of the eX,- tension posts, thus permitting the binder to be slipped off the posts, which meanwhile are held by the other binder. The leaves may then be slipped on or off the posts after which the binder'which has been removed is replaced, and the locking bar moved the other way until the ends of the elliptical openings engage the saidv posts.

I claim:

1. A loose leaf binder, comprising a pairy one screwing into the other, the innermost section being provided with a sleeve moving over the outermost section for the purpose set forth.

2. A loose leaf binder comprising binding plates, each having a longitudinal central recess, and transverse openings near the ends of the recess, a locking bar slidable in they longitudinal recess and provided with elliptical openings registering with the transverse openings, a pin threaded into the end of the locking bar and engaging outside of the plate, means for preventing longitudinal movement of the pin with respect to the plate, said pin having a square head for the purpose set forth and extension posts connecting the plates and engaging the transverse openings.

3. In a loose leaf binder, extension posts comprising inner and outer sections, the outer section being internally screw threaded and the inner section being externally screwthreaded and provided with a sleeve extending over the outer section when screwed into it and an extension member provided with a reduced externally screw threaded portion for engaging the outer member and an internally screw threaded portion for engaging the inner member.

FRANK H. CRUMP.

Witnesses:

JACK BUCKLIN, J. T. HAYES.

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