US1029020A - Bobbin for weaving-looms. - Google Patents

Description

. A. MARAZZI. BQBBIN FOR WEAVING LOOMS. APPLICATION FILED FEBJ), 1911.

1,029,020, Patented June 11, {912.

FATENT ornion.

ADOLIE MARAZZI, 03$ KTTERN, NEAR KEIEPTEN, GERMANY, ASSIGNOR TO THE FIRM OF GENQSSEFLQ'SGHAFT Fl'lR TEXTILPA'IEN'EE, OF BASEL, SWITZERLAND.

'BQBBIN FOR WEAVIN'G-LCOMS.

specification of Letters Patent.

Patented June 13. 1912.

Application filed February 9, 1911. Serial No. 607,691.

, script-ion of the invention, such as will en able others skilled in the art to which it appertains to make and use the some.

Bobbins'for looms with mechanical bobbin change having holders for the thread ends, are a' part of the prior art. In the 7 new types ofbobbin these holders consist of closed metal caps placed on thehollow bob bin case, which latter is connected with a source of compressed air. The thread of the weft is wound a few times around these caps in order to form the so-calledreserve and is given the required position by blowing away the cap in the loom. This form of thread-holder has the disadvantage that the cops are costly, both llLtllE initial .cost and in tip-keep. Sincethey sit loosely on the ends of the bobbins they often fly oh? in consequence of the speed of rotation and changing device, the thread may getlost or are trodden under foot, this especially happening during the transport of the bobbins. A further disadvantage is that the caps must be adjusted on the bobbins each time o bobbin is wound inthe spinner and after the blowing oil in the loom, said caps must be again collected and the remnants of thread removed. This .requires a considerable amount of time or specie; devices. Finally it must be mentioned that the transport of such bobbins is dificult, since they must first be packed in single rows in smell boxes and these then packed in larger cases, this necessary in order to prevent. the caps ailing ed and the thread becoming damaged. Even ifthe bobbin. is thus broughtinteet for as the be done aged when gliding out of soid de me so that the threading of the shuttle :tails. I

All these disadvantages are avoided in the bobbin according to the present invention, the essentially new feature oi the same being the arrangement of the thread necessary for the autoi hatic i': oi the shuttle, the so called resort uitably.

enlarged end borehole or recess of the bobf bin, 'Irom which it is blown in known mannor. is, accomplished by giving the thread a few turns hround the projecting end of the bob? binafter the latter has been wound. WVhe'n.

the bobbin is then pulled OK the spindle these turns will be automatically passed nto the recessed end of the bobbin, where The formation of this thread-reserve they are protected against outward influences until the blowing oil in known manner. Reterencebemg had to the accompanying drawing, Figure 1 shows a bobbin according bobbin being still on the spindle, Fig. 2 shot the bobbin attenremoval from the spindle certain parts being shown in section. Fig. 3 is an end-view of the bobbin as shown in Fig. 2.

a is thespindle, Z) the bobbin, having the narrow bore-hole v, enlarged at its. end to form the recess (2. T he end of the bobbin 7) is provided with a cap (Z, turned down at its upper edge into the recess 0 and preferably haying a notched end-surface il the notched formation of the cap tending to prevent the thread from being frayed or otherwise damaged.

e is the thread-reserve which comes to lie in the recess 0 after thebobbin removed from the spindle. The tl'n'ead-reserve may also be formed by simply passing the end of the thread through ,the bore-holelof the.

bobbin: This arrangement of the threadgreatest certainty and with a low airpressure; a tearing" or damaging of the thread is altogether avoided, the weight of the reserve is so small, that it prevents damage. @n the other hand, the more or less heavy caps according to the prior art requirin considerable sir-pressure to blow theme very frequently resulted ins, ing of the reserve. Also, the t-rensport he bobbins soccer-ding to the new -nventio quire such great care was the case with the old type, so that e new invent-ion inereases the eiliciency the weaving-loom every direction. I "What I claim as my invention and desim secure by Letters Patent, is:

Qloes not reto the present invention after winding, the,

lilo

in which said bobbin the bur-e eniazgad om and o fnrm a rec-25:5 wmfrcln the re 4 thread is seated and aflnpi'ed to be blown ihere'from by compressed ail.

53. As a new ariiclc of mruauiacimre; a bomd. full .bi'fltrbln Wound with. reserve thread, having the re'serw thread seated in the bore in thefiuobbin and 15:01: whim it adapted to be blown by cmnpr ed air.

3. is a new a. ick'; of lnzmufucture, bored full babbin Wound with IGSQI'VU thread, having th 1. dSQlYS fill-cad seated in H the 530 in, and a, PXOKiCiiiVG 00vering for the reserve bl-Bari, arranged at 15 011% @116 of the bore. As a new article of manufacture, a bm'ed fun bobbin wound with reserve thread, having the'reserve thread seated in. the 2mm in the bobbin, and a notched 'etal 20 cap on one enfi 0f the bobbin to protec's ihe reserve thread in the bare.

fn testimony whereof I hereunto affix my, signature in the presence of two itnesses. ADOLF BQL LRAZZL "messes .ALIJRED KREMSER, U. KINZEL.

Images