US 2419748 A
Description (OCR text may contain errors)
April 29, 9 7- J. w. WEBER E 2,419,748
HAND CARDING TOOL Filed June 8, 1944 Patented Apr. 29, 1947 2,419,748
HAND CARDING rooL John W. Weber and Charles R. Davies, Philadelphia, Pa., assignors to Proctor & Schwartz, Inc., Philadelphia, Pa., a corporation of Pennsylvania Application June 8, 1944, Serial No. 539,257
2 Claims. (Cl. 15-186) This invention relates to a device for cleaning fibres from between and around the bases of the wires of card clothing, and from the spaces :between and the gullets of the teeth of Garnett wire, on the cylinders, doffers, workers, strippers 5 and other rolls of carding and Garnett machines, Preferably the handle I is of hollow cast conetc. The device of the present invention may struction and may be composed of any suitable also be used as a hand carding tool, if desired. material, such as aluminium, plastic, etc. In-
One object of the present invention is to proside the hollow handle structure a boss I2 is vide a hand tool with a readily removable and provided, in which the screw threaded bore II is replaceable sheet of card clothin and to provide formed. a rigid holder for said card clothing which may In order to stifien the base plate A from end be collapsed to reduce its dimension in one directo end, the sections al, a2 thereof, along their tion, for effecting removal of the sheet of card outer longitudinal marginal edges remotely sitclothing therefrom, and for replacement of the uated with respect to the hin e joint a3, are card clothing thereon, and in which relatively provided with upwardly and inwardly turned movable component elements of the rigid holder flanges l5, I5. Open spaces or undercut grooves may be moved into relatively extended positions l6, l6 are provided between the inturned parts to increase the aforesaid dimension of the holdof the flanges I15, which are spaced from and run ing device, whereby the sheet of card clothing pa al el to he un er y portion of the Plates will be placed and held under tension in one al and a2, as the case may be. direction, to present and maintain the wires or Stretched over the under convex surface of the card clothing on the holder in a stiif upright the base plate A is a strip of leather, canvas or position for use. other suitable flexible backing material, in which Other features of the invention and the cona e, n the u u a ner. anchored the bases struction and operation thereof will be fully of the carding wire teeth 17, b. disclosed hereinafter, reference being had to the Along each of t e pp longitudinal edges accompanyin drawin f whi h; of the backing sheet B is a substantially U-shaped Figs. 1 and 2 are respectively a plan view and p l7, having One g 18 c as y rivets end elevation showing the device ready for use; t0 the backing sheet Each p also and cludes a center cross portion 20, adapted to en Fig. 3 is a view similar to Fig. 2 showing the sa t out fla d d f t e plat s ction device in collapsed form for replacement of the a 0 1 as e Case y be. h p also card clothing thereon. includes a second leg 2|, substantially parallel to The device comprises an arcuate base plate A, the leg The leg 2 in c instance, is p of general concavo-convex cross-sectional form, Vided Wi an n n p 2 These ps 2 are and which is composed of two similar half parts arranged to slide under the inturned lips 23 of or sections al, and a2 pivotally connected toe flanges 15 0f the base plate A a d into the gether along inner longitudinal adjoining edges spaces I6 formed by the inturned lips 23 on the thereof, as by a hinge joint a3, in the form of a 40 backing pl t A, and t0 interlock W h id inpiano hi turned flange lips, to provide an anchorage for Secured to the section al, for example, of the ach e o the backing et B a on the corarcuate base plate A is a handle I having lateral respondin edge f th b plate A of the device. flanges 2, 2 throu h which, and the base plate n t n, th clamp screw I0 is backed section at, pass rivets 3, 3. Obviously the handle Out Of the threaded boss l2 Permitting the base I maybe secured to the plate section al by means Plate A to break along its longitudinal Ce of spot welding, etc., instead of the rivets 3 withabout the p t o t e h e Joint a3, a ea out departing from the spirit of the invention. wn n Fi 3. Th ip I y be re- Secured to the base plate section a2 is a bracket moved from the fl n es l5 0f the sections 5, which is provided with lateral flanges 6, 6 al and of t e Plate by moving said through which, and the plate a2 pass rivets I, 1. clips longitudin ly, until the inturned ps 2 of These rivets, like the rivets 3, may be replaced th lips l1 a ntir ly v d f m th kin by spot welding or any other suitable means grooves [6 in the flanged edges of the plates al capable of producing a rigid connection between and a2. these elements.
The bracket 5 is provided with an arm 8 which is drilled at 9 to receive and rotatably support a clamp screw ID. The screw I0 is adapted to enter a correspondingly threaded bore ll, iormed in the handle I.
The breaking of the base plate A at its center 3 produces slack in the backing sheet B of the carding cloth, making the release of the clips I! from the flanged edges l5 of the plate sections al and all possible.
A new sheet of carding cloth may be readily applied by reversing the order, i. e. by slipping the lips '22 of the clips 11 into the locking grooves l6 and sliding the clips longitudinally of the plate A. After the clips I! are in place the plate A is again straightened out from its collapsed condition shown in Fig. 3 to its normal extended condition shown in Fig. 2, which increases the distance between the opposite flanged edges 15, I5 of the plate A, which places 'the ba'cln'ng she'et B of the carding cloth under lateral tension and keeps the backing sheet B in firm, smooth, tight contact with the base plate A. flhelocking screw I0 is threaded into the boss [2 and tightened to retain and increase the tension placed on the backing sheet B by the, lateral expansion of the base plate A.
1. Ahand tool comprising a base plate of concavo-convex cross-sectional form composed of two component sections hinged together intermediate opposite edges of said plate to aiTord lateral expansion and contraction thereof, a sheet of card clothing adapted to bear against the convex face of said plate under tension, means comprising inturned flanges on said plate edges and clips having inturned flanges secured to predetermined edges of said sheet and interlocking with the inturned flanges on said plate for securing said edges of said 'pla-te to said edges of said card clothing, and means'fo'r maintainin 4 said plate in a laterally extended condition to maintain said card clothing under said tension.
2. A hand tool comprising a base plate composed of two sections hinged together intermediate opposite edges thereof, a sheet of card clothing adapted to bear against said plate under tension, means for securing said edges of said plate to corresponding edges of said "cardclothing, a handle element of predetermined length and having one end secured to one of said sections, a bracket element secured to the other of said sections and including a relatively short arm overlying a portion of said handle adjacent said base plate while "exposing the remaining portion of the length of the handle for gripping the handle alone in using said tool, and a bolt rotatably mounted in one and threaded into the other of said elements adjacent said base plate for maintaining said plate in a laterally extended condition to maintain said card clothing under said tension.
JOHN W. WEBER. CHARLES R. DAVIES.
REFERENCES CITED The following references are or record in the file of this patent:
UNITED STATES PATE 'NTS