Patent GB-392627-A (GB)
Title: Improvements in and relating to devices for filing loose leaves, fabric samples and the like
IPC: B42F9/00
Filed: 1931-11-25
Abstract: 392,627. Clips and clamps. MANDLER, 0., 3, Schleifm³hlgasse, Vienna. Nov. 25, 1931, No. 32726. [Class 44.] In a device for filing loose leaves, fabric samples, &c., comprising two clamping-arms connected together intermediate their ends by a connecting member fixed in the lower arm perpendicularly to the plane thereof and which are adapted to clamp the leaves &c. between them at one end, the upper arm is slidable on the lower arm on the side of the connecting member remote from the point of clamping and is also displaceable with reference to the lower arm at the connecting member while the material is being clamped, whereby the clamping pressure exerted on the leaves &c. can be varied. Alternatively, the upper arm exerts pressure on the lower arm on the side of the connecting member remote from the point of clamping and is displaceable to vary the clamping pressure both at the connecting point and at the point remote from the clamping point. In the arrangement shown in Fig. 2, an arched leaf spring 3 bears on an arm 1 of metal, artificial resin, wood, &c., at two points, and is provided with a longitudinal slot for engagement with a bolt or rivet 4 secured to the arm 1. The arm 3 may be swung aside to allow papers to be filed on prongs 2, and the clamping .pressure varied by moving this arm longitudinally of the arm 1. In a modification the arm 3 is adapted to protrude through a slot in a U-shaped strip to bear on the outside of the top limb of the latter to clamp leaves filed therein. In the arrangement shown in Fig. 11, a plate 8 fits over the bottom clamping- bar 1, and is bent up at the sides to provide sheet stops 9a, 9b. The top clamping-bar 3 is rigid and engages over the bolt 4, and is adapted to be moved towards the bar 1 against the action of an interposed spring by a nut 15a. An adjusting-screw 12 is threaded through the bar 3 to engage the bar 1. In the arrangement shown in Fig. 19, the bolt 4 is pivotally mounted at its lower end to the bar 1, and the bar 3 is shaped at one end to engage a rack 26 fixed to the bar. The bar 3 is adapted to'be screwed down by the bolt 4, but a slot 28 communicates with the screwed hole in the latter so that the bar may be moved sidewise to bring the bolt into the slotted portion to facilitate positioning. In modifications of this arrangement, an adjusting-screw passes through the bar 3 to contact with the bar 1, and the bar 3 is slotted to engage over a rack or bolt secured to the bar 1, the slot being partly covered by a leaf spring secured to the bar 3 and adapted to engage the teeth of the rack or the screw threads of the bolt. In another arrangement, the lower clamping-bar 1, Fig. 15, is bent up at right-angles, and the bar 3 is mounted on the screw 4 and is recessed at one end for sliding engagement with the bent up portion of the bar 1. The screw 4 is provided with a loop 18 to facilitate rotation and is mounted at its lower end in the bar 1. A plate 8 is secured over the bar 1 in the manner shown in Fig. 11 and the extensions 9a, 9b serve as stops as before. The arm 3 is connected to a strip 17 which is slotted to engage over the members 9a, 9b and attached to the plate 8 by flexible strips 16a, 16b.