US2340595A - Textile truck for yarn holders - Google Patents

Description

2 Sheets-Shee t 1 Filed June 11, 1942 Zinnentor: JAMES M. Jones wwamm attornegs Feb. 1, 1944. JONES TEXTILE TRUCK FOR YARN HOLDERS 2 Sheets-Sheet 2 Filed June 11, 1942 Smaentor: JAMES l LJoNEs attorneys Patented Feb. 1, 1944 UNITED STATES PATENT OFFICE- 2,340,595 TEXTILE TRUCK on-YARN HOLDERS. J James M. Jones, Charlotte, N. C. 7 Application June 11 1942, Serial No. 446,637

4 Claims. (Cl. 220-93) This invention relates to textile bobbin trucks and more especially to an article of thistype having a novel means for elevating the contentsfto an accessible position near the upper open' side thereof. g

It is a well known fact in textile circles that machines such as spinning frames, fly frames, slubbers and the like are equipped with numerous spindles upon which bobbins or yarn holders are adapted to removably fit. After the machines have been operated for some time, these yarn holders become filled, at which time the machine is stopped so as to dofi or remove the filled hold ers from the spindles and to replace empty holders instead. In order to quickly carry out this operation a double compartment wheeled truck is usually employed, one compartment being adapted to receive the filled holders and the other compartment carrying a supply of empty holders to be used for replacement as the filled holders are removed. As the supply of empty holders is used it is necessary for the doffing operator to stoop lower to reach the holders. This condition slows up the doiiing operation and also tires the dofiing operator.

It is an object of this invention to provide an improved textile truck in which the compartment containing the empty holders is provided with a hand-operated adjustable bottom capable of supporting the holders at any desired level within the compartment.

Specifically the structure comprises a container having a pawl and rack mechanism disposed along opposite side walls whereby the adjustable bottom and the supported'holders may be easily elevated to the desired position. 1

It is another object of this invention to providea bobbin trucklof the class described comprising a plurality of telescopically mounted containers mounted in the empty holder, compartment, to

gether with pawl and rack mechanismfor elevating said containers. By providing a plurality of telescopic. containers the holders may be kept out of contact with the compartment side walls while being elevated, and therefore binding and chafing will be prevented. 7

some of the objects of the invention having been stated, other objects will appear as. the description proceeds when taken in connection with accompanying drawings in which:

Figure 1 is an isometric view of my improved, bobbin oryarn holder truck; l

Figure 2 is a longitudinal sectional view taken along the line 2-2 in Figure 1;-

Figure 3 is an isometric view of a portion of the false bottom which slidably fits within one of the truck compartments; I

Figure 4 is a sectional plan view takenalong the line 4-4 in Figure 2;

Figure 5 is a longitudinal vertical sectional view similar to the right-hand portion of Figure 2,

but illustrating a slightly modified form, of the invention;

Figure 6 is an isometric view of the telescopic container assembly adapted to operate in the empty yarn holder compartment of the modified form of the invention shown in Figure 5';

Figure 7 is the View similar to Figure 5, but showing the telescopic container assembly in elevated and contracted position;

the upper side thereof boxes I4 and I5, the box empty bobbins from box It and places them upon the spindles previously occupied by the filled bobbins. As heretofore stated it is necessary for the operator to gradually stoop lower as the yarn holders are used from box it. The present invention contemplates the use of a hand-operated false bottom whichmay' be'elevated to a plurality of difierent positions thereby causing the top of the mass of yarn holders to be disposed within easy reach without unnecessary stooping.

The box I 4 has suitable vertically disposed slots 16 in two of its opposed side walls. These slots slidably receive extensions I I which are employed as handles and which are an integral part of a supporting member such-as a channel 18. Upon this channel a suitable plate I9 is secured by any suitable means such as screws 26. By observing Figures 2 and 4, it will be seen that the edges of this plate are disposed in close proximity to the four side walls of box id, thereby forming a false bottom. i

In order to provide means for holding the plate IS in a plurality of elevated positions within the box 4, suitable racks 22 are provided on each side of each vertically disposed slot l6. These racks have spaced notches 22a therein, in which the end of one leg of an L-shaped pawl 23 is adapted to yieldingly fit. A pawl 23 is pivotally secured to each end of the channel supporting member I8 as at 24 so that the horizontal legs thereof will normally. be disposed in ,spaced relation to extensions As a meahsifor yieldingly urging the vertical legs of pawls 23 toward each other and into engagement with the rack members 23 a tension spring 25 is employed, said tension spring having its ends connected to the vertical legs of the pawls 23. The spring 23 is disposed directly beneath the supporting member 8 and penetrates both of the slots I6.

Since longer sides of the truck should be kept free from projections the extensions 1 and channel member l8 have been placed longitudinally of the truck so that one of the extensions I 1 will be located on the truck end. On account of the proximate side walls of boxes 4 and I5 being disposed so close together it has been necessary to cut an additional vertical slot 28 in box I5 to permit the other extension I! to project to an accessible position within box I5. When it is desired to elevate the yarn holders within the box l4, the operator engages both handle members I! simultaneously, and then pulls the channel member I8 and the associated plate l9 upwardly until the lower ends of pawls 23 engage the desired notches 22a in the racks 22.- If it isdesired to lower the plate member l9 the horizontal legs of pawls 23 are engaged and rotated upwardly to cause the vertical legs of the-pawls to become disengaged from the notches 22a. With the pawls in a disengaged position the false bottom can be easily lowered the desired amount.

Figures 5 to 8 inclusive show a slightly modified form of the invention. In this form the truck ID has a box 30 mounted thereon, said box having a compartment 3| for empty'yarn holders and a compartment 32 for filled yarn holders. These compartments are separated by a single wall or partition 33. Each of two opposed walls of compartment 3| have a vertically disposed slot 34- therein in which suitable tube supporting handles 36 and lower container supporting handles 56 are mounted for vertical sliding movement. The handles 36 and 56 are secured to the opposed sides of tubular member ber 40 respectively.

It can be seen that the lower rim'of tubular member 39 has an in-turned flange 39a which fits beneath an out-turned flange or rim 46a of container member 40. These flanges serve as a tie between members 39 and '40 so that when member 39 is elevated from the position shown' in Figure 5 the container 40 will also be elevated.

The container 40, however, is telescopically mounted in the tubular member 39, and the tubular member 39, in-turn, is slidably mounted in the compartment 3| of box .39.

The tubular member 39 is held in elevated position very much in the same manner as the plate I9 is held inthe preceding form of the invention. Arack 4| is disposed on each side of each slot 34 and this rack has a plurality of spaced.

notches 4| a therein. The handle 36 serves as a supporting means for L-shaped pawls 42, one leg of each pawl yieldingly engaging the notches in the racks. The pawls 42 are pivotally secured as at 43 to handle members 36. A compression 39 and container mem spring 41 serves to normally urge one leg of the pawl into engagement with racks 4| and notches 4|a. This spring encircles a pin 48, which pin penetrates a slot 49 in the vertical leg of pawl 42. Pin 48 has one end threadably secured in handle 36 and also has a head 48a for confining spring 41 around the pin. (See Figure 8.) V

The lower container 40 is individually supported in an elevated position by a similar means. This means comprises an L -shaped pawl 54 which is pivotally secured as at 55 to the handle 56. A tension spring 51 normally urges one leg of the pawl into engagement with rack members 42.

Let us assume that the container 40 and the tubularmember 39 in Figure 5 are filled with empty yarn holders, thereby leaving empty that portion of compartment 3| which is above tubular member 39. In order for the operator to remove yarn holders when in this position, it will be necessary for him to reach at least to the top of tubular member 39. If the operator so desires, he may grasp the handles 36 and then elevate the tubular member until its upper edge is substantially at the same elevation as the top of compartment 3|.

This elevation of the tubular member will also elevate the yarn holders thereby making them more accessible. Since inter-engaging flanges 39a and 49a are provided the container 40 will also be elevated to substantially the same position previously occupied by tubular member 39. With the members 39 and 49 in elevated position the operator will use the empty bobbins from the member 39 until the top of container 4|] is reached. At this time he will grasp handles 56 and raise container 40 to a position approximately the same height as of the top of compartment 3|, that is, to a position such as shown in Figure 7. By providing a telescopic assembly as shown, the empty bobbins or yarn holders are never caused to slide against the side wall of the compartment 3| while being elevated.

With certain types of yarn holders some difficulty is encountered on account of binding when a. false bottom such as shown in Figures 1 'to 4 inclusive is employed, because a bobbin or yarn holder will simultaneously engage the side wall of the compartment and the false bottom while the bottom is being elevated. It has been found,

however, that this binding is somewhat eliminated if precision work is employed when making -the container. The modified form of the invention completely eliminates this binding but is not capable of maintaining the top level of the emptyyarn holders as near as the top of the compartment at all times as in the first form of the invention.

In the drawings and specification, there has beenset forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a, generic and descriptive sense only and not for purposes of limitation, the scope of the inventiorrbeing defined in the claims.

I claim: 7 r

1. The combination in a box. for empty yarn holders of a vertically slidable false bottom, said 7 box having a vertically disposed slot in two opposite sidewalls, projectionsjextending fromv opposite. sides of said bottom through said slots to the exterior of the box, vertically disposed racks securedto the exterior of said box adjacent said slots, and a pair of pawls carried by said projections and engageable withsaid racks whereby the bottom may be held in a plurality of elevated positions.

2. The combination in a box for empty yarn holders of a vertically slidable false bottom, said box having a vertically disposed slot in two of its sidewalls, a projection extending from said bottom through each of said slots to the exterior of the box, vertical rack on the exterior of the box and disposed adjacent each of said slots, and pawls carried by said projections and engageable with said racks whereby the bottom may be held in a plurality of elevated positions.

3. The combination in a box for empty yarn holders of a vertically slidable container within said box, the side walls of said container being disposed in close proximity to the side walls of the box and the depth of said container being less than the depth of the box, a vertically slidable tubular member in said box, said tubular member being telescopically mounted over said container, inter-engaging means between said tubular member and said container, said box having a vertically disposed slot in each of opposed sidewalls, a

projection on opposed sides of both the container and tubular member and extending through the slots, a rack on the exterior of opposed sides of the box and disposed adjacent each of said slots, a pawl carried by each projection and adapted to engage the rack to hold the container and tubular member in elevated position within the box.

4. A container having a pair of vertically disposed slots in two opposite sidewalls, a supporting member disposed within the container and forming a false bottom member and being vertically slidable within the container, a pair of projections mounted on the supporting member and projecting through said slots, a, vertically disposed rack disposed adjacent each of said slots, a spring-pressed pawl pivoted on each projection and adapted to engage the rack to hold the supporting member in elevated adjusted position within the container.

JAMES M. JONES.

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