US2491292A

US2491292A - Chenille making machine

Info

Publication number: US2491292A
Application number: US66875A
Authority: US
Inventors: Joseph L Wilmsen
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-12-23
Filing date: 1948-12-23
Publication date: 1949-12-13
Anticipated expiration: 1966-12-13

Description

Dec. 13, 1949 L, ILMSE N' 2,491,292

GHENILLE MAKING MACHINE Filed Dec. 23, 1948 Z2 Z0 i g f /4 25 L f 4/ Y \1 ,4 J1- i V 40 5 5 i 1 1' 6 8 587 6 54 g INVENTOR. Fig 4 36 35 Jose 0b LWzYm e/Z 3a BY J; M

A tfarnay Patented Dec. 13, 1949 I UNITED STATES CHENILLE MAKING MACHKNE Joseph L. Wilmsen, Bushland, Pa.

Application December 23, 1948, Serial No. 66,875

Claims. (Cl. 5724) My invention relates to a chenille making machine-of the type shown in such prior patents as No. 1,585,357 issued to A. Anderson on May 18, 1926 entitled Chenille making machine, and my prior Patent No. 2,408,898 of Oct. 3, also entitled Chenille making machine.

One object of the invention is to produce an improved machine of the type set forth.

In machines of the type referred to, the threads which form the chenille are wrapped around a forming plate or bar which also has grooves in its longitudinal edges for guiding the warp threads and for reinforcing wires which constitute the core of the chenille. This forming plate is shown at 11 in the Anderson patent and at 13 in my prior patent.

As will be seen from the patents mentioned, the forming plate is fiat and relatively thin, the width of the forming plate being varied according to the length of the pile to be formed on the warp threads. In other words, except for a recess formed at the end of the forming plate and except for the grooves in its longitudinal edges, the forming plate is rectangular in plan, in transverse section and in longitudinal section.

A forming plate of the type described operates satisfactorily but I have discovered that the fiat, rectangular shape of the forming plate and the corners formed at the intersecting surfaces thereof do not provide the best kind of a surface around which to wrap the chenille forming threads. In other words, the rotating head which carries the thread spools must, in conventional machines wrap the threads about a flat bar and this I found is not conducive of best results either in the speed or efficiency of the operation or in the manner in which the threads are wrapped around the forming plate.

It is therefore a further object of the invention to produce an improved forming plate for chenille making machines.

These and other objects are attained by my invention as set forth in the following specifica tion and as set forth in the accompanying drawings in which:

Fig. 1 is a fragmentary top plan view of a chenille making machine provided with a forming plate embodying my invention. Fig. 2 is a fragmentary side elevational view of the machine shown in Fig. 1.

Fig. 3 is a top plan view of the forming plate of my invention, shown detached.

Fig. 4 is a side elevational view of Fig. 3.

Figs. 5, 6, 7, and 8 are sections taken on the corresponding lines in Fig. 3.

' forming plate shown in the prior In Figs. 1 and2 I have shown only asniu'ch of a conventional chenille making machineas is necessary to permit proper'expla'nation of this invention. The conventional parts of the machine shown include a head iii, which is in the form of disc, 2. gear l2 on the periphery of the head, a sleeve M for mounting the head inTa rotary manner on a hollow stub shaft it, one, or more thrust bearings I8, and driving means, such as a pinion 21 on the shaft 22 of a motor, not shown. The head 10 carries spools 24 which sup ply threads 26. The warp threads 25, which form the core of the chenille are fed, from a source not shown, through the hollbw shaft 55, and are guided in grooves formed in the opposite vertical edges of the forming plate so as to be incompassed by threads 26 are wrapped about the forming plate. Other threads or wires also fed from a source not shown, are twisted about the wires 28 immediately after the threads 26 are cut at opposite sides of the forming bar by the rotary cutters 34'.

According to my invention, I substitute the forming member 35, shown in Figs. 3 to 8 for the patents aforesaid.

As shown, the forming bar of my invention is formed round or cylindrical, at its inner, or thread receiving end, and its shape progressively changes from round to wholly flat or rectangular at its outer end. It is to be noted, however, that the length of the perimeter of my forming member does not vary when measured in any plane normal to the axis of the plate at any point at which threads are wrapped about the forming member. This must be so if the size of the pile of the finished product is to be uniform.

Accordingly, and as shown in Figs. 3 and 4, the inner round portion near section line 5-5 on Fig. 3, is progressively flattened so as to assume the somewhat oval shape in cross section which is shown in Fig. 6, the more flattened or oval cross section which is shown in Fig. '7 and finally the fiat or rectangular cross section which is shown in Fig. 8. It will be understood that the change from the round cross section at, and to the right of, section line 5-5 in Fig. 3 to the fully rectangular cross section at the other end, or in the vicinity of section line 8-8 is progressive and presents a continuous surface as best shown in Fig. 3.

Like conventional forming plates, my forming member is also provided with lateral grooves 33 for guiding the core threads 28 and in the event that the threads 28 are not fed through the shaft I6, the forming member 36 may be provided with lateral wings 4B for guiding the core threads into the grooves 38.

In a machine provided with a forming member embodying my invention, the threads 26 are initially wrapped over the round instead of over a rectangular portion. Also, the helix formed by wrapping the threads 26 over the forming member moves over a generally rounded surface until it reaches the point at which the threads are severed by the cutters 34 which is at the beginning, or just prior to the beginning of the flat or rectangular portion at the left hand end of the forming member. The Wrapping of the threads 26 about the forming member and the movement of the helix, formed by the threads, longitudinally of the forming member are both facilitated and improved by rounded surface of the portion of the member which extends from the point at which the threads 26 first impinge upon the forming member to a point to the right of section line 8-8 on Fig. 3.

What I claim is:

1. A forming member for a chenille making machine, said member having a round portion which merges with an oval portion, with the major axis of said oval portion progressively increasing, and with the minor axis of said portion progressively decreasing, in a direction away from said round portion.

2. The structure recited in claim 1 in which the perimeter of the round portion and of the oval portion is constant when measured in any plane normal to the longitudinal axis of the forming member.

3. A forming member for a, chenille making machine, said member including a first end portion which is substantially circular in cross section, a second end portion which is substantially rectangular in cross section, and an intermediate portion which is of a generally oval shape, one end of said intermediate portion merging with said first end, and the other end of intermediate portion merging with said second of said member, the major and minor axes of said intermediate portion progressively increasing and decreasing, respectively, from said end toward said second end of said bar.

4. The combination of bodying the structure of making machine.

5. The combination of bodying the structure of making machine.

a forming member emclaim 1 with a chenille a forming member emclaim 3 with a chenille JOSEPH L. WILMSEN.