US3386673A - Wire spring paper spindle - Google Patents

Description

June 4, 1968 J. J. MADER WIRE SPRING PAPER SPINDLE Filed March 30, 1967 INVENTOR JEROME J. MADER ATTOR EY United States Patent 3,386,673 WIRE SPRING PAPER SPINDLE Jerome J. Mailer, Des Plaines, Ill., assignor to Teletype Corporation, Skolrie, Ill., a corporation of Delaware Filed Mar. 30, 1967, Ser. No. 627,129 2 Claims. (Cl. 24255.2)

ABSTRACT OF THE DISCLOSURE A tube having two sets of diametrically opposed holes formed adjacent each of its ends and a pair of V-shaped stiff wires each threaded from a hole at one end of the tube through two opposed holes at the other end and into the hole at the one end opposite the starting hole.

BACKGROUND OF THE INVENTION This invention relates to spindles and more particularly to spindles for rotatably supporting rolls of paper for use in high speed printing devices.

Teletypewriters, computers and other high speed printing machines usually print on paper supplied from rolls rather than on individual pages. Typically rolls of paper are mounted on spindles which serve to rotatably support the rolls and to properly position the rolls in the printing machines. In the past the spindles employed in high speed printing machines have been unnecessarily expensive because they have been comprised of complicated parts which are difficult to assemble.

SUMMARY OF THE INVENTION In the preferred embodiment an inexpensive spindle is constructed from a support member having at least one hole formed in it and a spring formed from one of the holes to the other for retaining rolls on the spindle.

DESCRIPTION OF THE DRAWING A more complete understanding of the invention may be had by referring to the following detailed description when taken in conjunction with the drawing wherein:

FIG. 1 is a front view of a paper spindle employing the present invention;

FIG. 2 is a sectional view similar to FIG. 1;

FIG. 3 is a view of a portion of the spindle shown in FIG. 1 in which the spindle has been rotated 45 and in which certain parts have been omitted more clearly to illustrate certain features of the invention, and

FIG. 4 is a sectional view taken along the line 44 in FIG. 1.

DETAILED DESCRIPTION Referring now to the drawing wherein like reference numerals designate like parts throughout the several views, with particular reference being had to FIG. 1, there is shown a spindle comprised of a support tube 11 having a plurality of holes formed in it adjacent each of its ends and four lengths wire 12 each passing from a hole adjacent one end of the tube 11 to a hole adjacent the other end. As is best shown in FIG. 2 the lengths of wire 12 actually comprise the ends of wire springs 13 which are preferably shaped in the configuration shown in dotted lines in FIG. 2. The wire springs 13 are assembled by threading them through diametrically opposed holes adjacent one end of the tube and then inserting the ends of the lengths of wire 12 in opposite holes of a pair of diametrically opposed holes at the other end of the tube.

The tube 11 may be formed from steel, brass or other suitable material and the wire springs 13 may be formed "ice from any hard, stilt wire such as music wire. The V- shaped configuration of the wire springs 13 prevents slippage of the lengths of wires 12 with respect to the support member 11. Of course, the lengths of wire 12 need not necessarily be joined together in which case they should be secured against slippage relative to the tube 11.

As is shown in FIG. 3 the pairs of diametrically opposed holes positioned at either end of the tube are preferably oiiset by an amount sufficient to allow one of the wire springs 13 to pass behind the other in the tube 11. The offset of the pairs of holes may be varied to accommodate any particular situation, for example, the various wire springs may be positioned at spaced intervals with respect to each other along the length of the tube.

The tube 11 has a shallow groove 14 formed around its periphery and a snap ring 15 is mounted in the groove 14. The ring 15 serves to position items carried by the spindle relative to the ends of the tube 11 and relative to the wire spring 12. Other locating devices such as flanges formed on the tube 11, pins through the tube etc. may be substituted for the snap ring 15 if desired.

If the spindle 10 is used in a device requiring frequent removal of the spindle an end cap 16 may be inserted in each end of the tube 11 to prevent persons handling the spindle from injuring themselves on the ends of the wire springs 12.

In use rolls of paper are placed on the spindle and the spindle is in turn mounted in a printing machine. The wire springs serve to locate the rolls radially on the spindle and to prevent slippage of the rolls. The snap ring positions the rolls axially with respect to the spindle and therefore, with respect to the printing machine.

Although only one embodiment of the invention is shown in the drawing and described .in the foregoing specification, it will be understood that invention is not limited to the specific embodiment described, but is capable of modification and rearrangement and substitution of parts and elements without departing from the spirit of the invention.

I claim:

1. A spindle for supporting rolls of paper and the like including:

a tubular support member extending the length of the spindle and having a plurality of holes formed in it, and

a wire spring including an apex positioned within the support and two normally straight lengths of wire each extending in bowed fashion from the apex out one hole in the support member and into another hole therein.

2. A support spindle including:

a hollow tubular member having a pair of holes formed in it adjacent each of its ends, and

a V-shaped wire spring threaded from one hole in one of the pairs through both holes in the other of the pairs into the other hole of the one of the pairs and extending in bowed arches between the holes in the one of the pairs and the holes in the other of the pairs.

References Cited UNETED STATES PATENTS 1,457,572 6/ 1923 Harriett 242-l29.7 2,434,3 68 l/1948 Pederson 242--55.2 2,562,923 8/ 1951 Kolivoski 242--55.2 2,681,189 6/1954 Huber 242129.7 3,292,874 12/ 1966 Tinkhan 242-552 FRANK .l. COHEN, Primary Examiner.

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