US1251010A - Loose-sheet holder. - Google Patents

Description

G. i. GATES.,

LGOSE SHEET'HOLDER.

APPLICATION min Dsc. 19. tels.

1,251,019. mente@ mamy.'

WITNESSES.- 1N VEN T012.

TTORNE YS.

GEORGE E. GATES, OE COIVISTOCK, MICHIGAN.

yLOOSE-SHEET HOLDER,

wSpecification of Letters Patent.

Patented Dec. 25, 1917.

Application filed December 19, 1916. Serial No. 137,786.

To all whom it may concern:

Be it known that I, GEORGE E. GATES, a citizen of the United States, residing at Comstock, county of Kalamazoo, State of Michigan, have invented certain new and useful Improvements in Loose-Sheet Holders, of which the following is a Specification.

This invention relates to improvements in loose sheet holders.

The main object of this invention is to provide an improved loose sheet holder which is simple and economical in structure and at the same time effective in retaining the sheets and very convenient to operate.

Further objects and objects relating to structural details will denitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification. The invention is clearly defined and pointed out in the claims.

A structure constituting a preferred embodiment of my invention is illustrated in the accompanying drawing forming a part of this specification, in which:

Figure I is a detail perspective of a loose sheet holder embodying the features of my invention with the binding members closed.

Fig. II is a detail perspective of one end of the binding members showing them in open position.

Fig. III is a plan view of one end of the binding members in closed position.

Fig. IV is a longitudinal section on line 4 4 of Fig. II.

Fig. V is a transverse section on line 5 5 of Fig. III.

F ig. VI is a longitudinal section of the binding members on line 6-6 of Fig. I.

In the drawings similar reference characters refer to similar parts throughout the several views and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Referring to the drawing, l designates the cover of a binder having a cover 2 secured thereto by flexible portion 2. Mounted upon the back plate l is a relatively fixed binder plate 3 secured thereto by means of rivets 5. The plate 3 is made of spring metal and has slots in each end thereof forming front extensions 4 and rear spring extensions 6, the rivets 5 passing through the outer ends of the front extensions 4. The rear spring extensions are provided with rearwardly and downwardly extending hooks 7 which serve as a supporting bearing for the pivot portion 8 of the binding hooks 9, which extend upwardly from the pivot member 8, then forwardly, and then downwardly, the ends of each binding hook resting upon the upper end of the fixed posts l0, which are secured to the extensions 4 in any desired manner such as C by riveting.

Vhen the. binding hooks 9 are in the closed position, the offset portion 11 rests upon the rear portion of the plate 3 and the spring extensions 6 pulling down upon the bearings 7 yieldingly hold the hook members 9 in closed position, but when the binding hooks 9 are forced back to the position indicated in E ig. II, the oset portion 1l lies forwardly of those portions of the pivot member 8, passing through the bearings 7, and the spring extensions 6, pulling down upon these portions of the pivot member, yieldingly hold the binding hooks in open position. See also Fig. V.

The opposed ends of the binding hooks 9 and the posts l() are provided with concave faces 13 and convex faces 12, respectively, as shown in Fig. VI. The operation of the device will be clear from the above description, but it should be noted by placing the rivets 5 at the outer ends of the front extensions 4, the resilience of these front extensions is added to that of the rear extensions 6, whereas if the rivets 5 are placed intermediate the post 10, the resilience of the extension 6 would have to be,

depended upon to hold the binding hooks in either the closed or open position.

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

1. A. loose sheet holder comprising a relatively xed binder plate slotted at its ends, the portions at the rear of the slots constituting spring arms and having upturned rearwardly and downwardly facing integral bearing hooks at their ends, binding posts mounted on said plate, and an adjustable binder member comprising a pair of binding hooks adapted to coact with said posts, and a pivot portion engaged in said bearing hooks with said arms under tension and with said binding hooks on the outer sides of said bearing hooks, said pivot portion having a plate engaging offset between its ends adapted to swing to opposite sides of IIS its pivot axis as the binder member is opened and closed thereby increasing the tension on said spring arms at a point intermediate such open and closed positions so that said binder member is held yieldingly in both positions.

2. A loose sheet holder comprising a relatively fixed binder plate slotted at its ends, the portions at the rear of the slots constituting spring arms and having upturned rearwardly and downwardly facing integral bearing hooks at their ends, and an adjustable binder member comprising a pair of binding members and a pivot portion engaged in said bearing hooks with said arms under tension, said pivot portion having a plate engaging olfset adapted to swing to opposite sides of its pivot axis as the binder member is opened and closed thereby increasing the tension on said spring arms at a point intermediate such open and closed positions so that said binder member is held yieldingly, in both positions.

3. A loose sheet holder comprising a back cover, a binder plate slotted at its ends to provide front and rear spring arms, upwardly turned downwardly facing hooks integral with the outer ends of said rear spring arms, rivets for securing the outer ends of the front spring arms to said cover,

a binder post secured to each front spring arm adjacent to but inside each of said rivets, an adjustable binder member pivoted in said hooks and having a plate engaging portion adapted to swing to the opposite sides of its pivot axis as the binder member is opened and closed, and forwardly extending arms for coperating with said binder posts.

L1. A loose sheet holder comprising a back cover, a binder plate having front and rear spring arms, upwardly turned downwardly facing hooks integral with the outer ends of said rear spring arms, rivets for securing the outer ends of the front spring arms to said cover, binder posts, an adjustable binder member pivoted in said hooks and having a plate engaging portion adapted to swing to the opposite sides of its pivot axis as the binder member is opened and closed, and forwardly extending arms for cooperating with said binder posts.

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

GEORGE E. GATES.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C.

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