US2245070A - Cop holder - Google Patents

Description

June 10, 1941. A D, A, CUMFER 2,245,070

COP HOLDER Filed Jan. 17, 1939 INVENTOR Dana/d A 00m/er w ma ATTORNEY Patented June 10, 1941 COP HOLDER Donald A. Cumfer, Ridgewood, N. J., assigner to Willcox & Gibbs Sewing Machine Company, New York, N. Y., a corporation of New York applicati@ January 17, 1939, serial No. 2513er)y Claims.

The present invention relates. to improvements in cop holders. f Heretofore cop holders have generally been in the form of straight pins or pegs upon which the cops were loosely suspended. However, such cop holders allow the cops to be vadversely moved about as the thread or the like is vWhipped or drawn from the windings thereon, and sometimes all-ow them to be pulled entirely away `from the Pes.

It is an object of the present invention to provide a copholder which is sturdier and more positive than those heretofore proposed.

A feature resulting from the attainment of this object is the provision `of a stationary gripping member, and a slidable gripping member with a spring for causing both of said members to firmly grip the bore of a cop'.

It is a further object to provide a cop holder which will prevent the cop from turning and which will prevent the cop from being pulled off the holder.

Features resulting from the attainment of this objective include the provision of pointed members at least one of which is controlled or shifted by yielding means, such as a spring, adapted to bite into the cop and to effectively hold it both against turning and being pulled oil` the holder.

Other features include the provision of novel slide means for advantageously supporting a movable member to grip a cop, and novel spring means for controlling the movable member whereby the cop may be placed or replaced on .1'

the cop holder easily with only one hand.

The holding of cops entails specialv problems because the inside bores thereof are usually considerably tapered, and because they are made in a variety of sizes.

It is an object of the present invention to provide a cop holder which will effectively hold cops of divers sizes and cops having both straight and angular bores even though the latter are either slightly or considerably tapered.

To this end the present invention includes feau tures such as the provision of cop gripping members adapted to firmly bite into the inner side walls of the cop, whether the bore thereof be straight or tapered, said .gripping members being movable through a considerable range to accommodate and grip various diameter cop bores, and to automatically compensate for any wear or distortion in the cop at the point 'where the gripping occurs.

Other objects, features and advantages will appear hereinafter.

In the drawing, which shows the present preferred forms of the invention:

Figure 1 is a top plan view of the cop holder, provided by the present invention.

Fig. 2 is a sectional View taken on line 2--2 of Fig. 1.

Fig. 3 is an enlarged sectional View of one of the cop holders shown in Figs. 1 and 2.

Fig. 4 is a view similar to Fig. 3 but shows both, instead of only one, gripping members movable.

Fig. 5 is a view similar to Fig. 3 but shows the movable gripping members controlled by tension rather than compression springs.

Before describing the present improvements and mode of operation thereof in detail it should be understood that the invention is not limited to the details of construction and arrangement of parts shown in the accompanying drawing, which are merely illustrative of the present preferred embodiments, since the invention is capable of other embodiments, and the phraseology employed is for the purpose of description and not of limitation. Also, the expression cop holder as used herein is intended to embrace spools having straight bores, and thread, yarn, string and like holders whether made of wood, cardboard or divers other materials.

Referring now in detail to the drawing, that form of the invention shown in Figs. 1 through 4 includes a base I0 which may be in the form of: a casting; a at metal or like plate secured to a table II, bench or the like as by screws I2;

or, a base Illa formed as an integral part of the table, as shown in Fig. 5.

The present preferred form of cop holder I4 is shown at either side of Figs. 1 and 2, and is shown in enlarged form in Fig. 3. It comprises a substantially stationary member I5 preferably in the form of a stud I 6 with a reduced and threaded shank Il extending -through a suitable hole E8 where it is secured in place and against turning by a nut I9. A point 29 may be made integral with a head section 2l of the stud, or it may, as shown. be a pin forced therein or otherwise suitably secured thereto.

Complementary to the stationary gripping member l5 there is provided a movable gripping member 22 comprising a slide 23 in the form of an inverted T-shaped block ridingv in a suitable slot 24 formed in the base I'Il and held therein by a stud 25 and nut 26 slidably holding a washer 21 and shoulders 28 against the top and bottom faces 29 and 30 respectively of the base. Preferably, the movable gripping member is provided with a point 3| projecting generally in a direction away from the point 20.

The purpose of the points 20 and 3I is to firmly bite into the wall 32 of a cop 33 or the like and effectively prevent turning thereof and prevent inadvertent removal of the cop from the holder.

Preferably this form of the invention is provided with a compression spring 34 for normally urging the movable gripping member I in a direction away from the stationary gripping member 22 to make the points 20 and 3l bite into and hold the cop 33 firmly. Locating and supporting the spring 34 is effectively accomplished by providing a stud 35 on the movable gripping member slidably fitting within one end of the spring and a suitable depression or socket 36 with a simple overlying plate 31 substantially enclosing the other end of the spring.

The gripping members I5 and 22, andthe structure for locating and supporting' the same just described in detail, provide a sturdy and very effective means for holding cops of divers sizes, shapes and materials.

The dot-and-dash line showing in Fig. 3 serves to show how the same cop holder may be used to hold straight cops and cops of a much smaller size.

Fig. 4 shows a slightly modified form of cop holder I4', differing from the rst form just described in detail mainly in the provision of two, rather than only one, movable gripping members 22, both slidable in a longer .slot 24. The coil spring 34, and the movable gripping members 22 including the washers 21, blocks 23, studs 25, nuts 26 and the like are just the same as those described in connection with Fig. 3. Also, in this form of the invention, by sliding opposite ends of the compression spring over coaxially opposed studs 35 on the blocks 23 the plate 31 may be omitted.

In order to load either of the cop holders I4 or I4 just described it is merely necessary to press the inside wall of a cop holder against the movable gripping member 22, sliding the same in the slot until the opposite inside wall of the cop slides over the mating gripping member Whereupon the cop may be released and be held firmly by the points'as shown in Figs. 3 and 4 particularly. Unloading may be effected by merely pressing against one side of the cop until the opposite side is free of the mating gripping member and then lifting the cop completely from the holder. The top surface 29 of the base supports the bottom end wall of the cop as shown in Fig. 3, which also shows a gripping member slidable along a line in the plane of the end wall.

A further modified form of cop holders 38 is disclosed in Fig. 5, differing from the forms shown in Figs. 3 and 4 primarily in the provision of a tension rather than a compression spring, and in a combination in which one spring may operate or control two cop holders.

The stationary and movable gripping members I5 and 22 respectively of the cop holder 38, may be exactly the same as those described in detail in connection with Fig. 3 (with or without the stud 35) and the movable members 22 may reciprocate in suitable slots 39 in the base Illa.

This form of the invention, however, provides an improved form of` spring control, comprising a tension spring 4D which may be merely looped or otherwise connected from onevmovable gripping member 22 to the fixed gripping member I5 of the next adjacent cop holder as shown at the left side of Fig. 5; or, opposite ends of the one tension spring 40 may both be secured to movable gripping members 22 of two adjacent cop holders as shown at the right hand side of Fig. 5, whereby one spring operates or controls two cop holders 38. The latter feature results in a considerable economy in manufacturing and assembly cost. Further no special recesses 35, studs 31, or holding plates need to be provided to hold the springs in place which results in still further economies.

Loading and unloading of the cop holders 38 shown in Fig. 5 is accomplished in the same Way as loading and unloading of the cop holders I4 and I4' shown in Figs. 3 and 4 particularly and hereinbefore described in detail.

It will be understood that minor changes in details of construction and larrangement of the parts can be made without departing from the spirit of the invention as set forth in the appended claims.

Having thus described the invention vwhat is claimed as new is:

1. In a holder, for a cop having an inside Wall and an end wall adjacent said holder, the combination of a base contiguous the end Wall of the cop, said base being slotted; means including a pair of pointed members in said base to grip said inside wall near one end of the slot; means on one of said pointed members for guiding same in a straight-line path of reciprocation in said slot; and a compression spring for sliding said one of said pointed members relative to the other and along a straight line parallel to the plane of the adjacent end wall.

2. In a holder, for a cop having an inside wall and an end wall adjacent said holder, the combination of `a base contiguous said adjacent end wall of the cop; a pair of pointed members slidably mounted on said base and adapted to grip the inside wall near the adjacent end wall; a compression spring for sliding at least one of said pointed members relative to the other and along a line parallel to the plane of the adjacent end wall; means for retaining said spring in said base; interengaging means on the base and the pointed members to prevent arcuate movement of each pointed member, and to guide each slidable member along a straight-line path of reciprocation, parallel to the adjacent end wall.

3. In a holder, for cops each having an inside wall and an end wall adjacent said holder, the combination of a base having a slot and having top and bottom faces, the top face being contiguous said adjacent end wall; a plurality of gripping members on said base; means on said walls of the cops near said adjacent end wall.

4. In a holder, for cops having an end wall and an inner Wall defining a bore, the combina-l tion of a slotted base adapted to support the end walls of the cops; a pair of gripping members on said base slidable in said slotted base; at least one additional pair of gripping members in said wall of the cop; a pair of pointed members slidable in said base adapted to grip the inside wall near the adjacent end Wall; a projection on at least one of said pointed members; a compression spring on said projection; and interengaging means on the base and the pointed members to prevent arcuate movement of each pointed member, and to guide each slidable member along a. straight-line path of reciprocation, parallel to the 10 adjacent end wall.

DONALD A. CUMFER.

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