US1553403A

US1553403A - Yarn-sizing machine and method of operation thereof

Info

Publication number: US1553403A
Application number: US562629A
Authority: US
Inventors: George F Slipp
Original assignee: Saco Lowell Shops
Current assignee: Saco Lowell Shops
Priority date: 1922-05-22
Filing date: 1922-05-22
Publication date: 1925-09-15
Anticipated expiration: 1942-09-15

Description

Spt. 15. 1925.

G. F. SLIFP YARN SIZING MACHINE AND METHOD OF OPERATION THEREOF 1922 2, Sheets-Sheet 1 Filed May 22 Sept. 15, 1925.

1,553,403 G. F. SLIPP YARN SIZING MACHINE AND METHOD OF OPERATION JIHEREOF Filed May 22, 1922 4 2 shun-sum 2 a I l O I i T za 2o fl 51 n29 g O 1' :5 if

26 as o 1 I f 7 Z8 24' A Patented Sept. 15, 1925.

eaten:

GEORGE IE. SLIPP. or LOWELL, Massachusetts, AssreNon T0 sAoo-LowELn snore,

or BosTon, MAsseoHU-snrrs, conronarionen inassaonusn'rrrs;

YARN-SIZING ac ne AND METHOD on ornna'rron HEREOF.

Application filed 111a 22, 1922. Serial No. 562,629.

To all whom it may concern:

Be it known that I, Gnomes F. Smrr, a citizen of the Dominion of Canada, residing at Lowell, in the" county of Middles'ex and Commonwealth of Massachusetts, have invented new and useful Improvements in Yarn-Sizing Machines and Methods of operation Thereof, of which the followingis a specification.

This invention relates to improvements in so-called Slashers or machines for sizing warp yarns, and to methods of operating the same during the tying. in of the yarn ends, and its object isto-allow the, saving of large quantities of yarn which under prevailing practice have to be thrown away each time a new set of yarns is inserted in the machine. i

The invention relates particularly to.

mechanism incorporated in such machines,

whereby it is made possible to continue to rotate the size rolls in the sizing vat tank, while the rest of the machine is not in operation.

In the machines of the character referred to, when a new set of warpyarns is' to he introduced into the machine, the machine is stopped for the considerable period necessary to enable. the operator to count in the new ends, and in such machines, as now in use, the size rolls, which constitute one element of the machine and which are partially immersed in the sizing material, are stopped with the other parts of the mechanism, with the result that a scum forms on the surface of the sizing in the tank and the sizing, moreover, becomes hardened on the size rolls, particularly along linesfat the top level of the sizing, and then when the machine is started up, this harden-ed sizing, coming in contact with the yarn, gums the yarns together-causing trouble the yarns pass through the comb. If this is to be avoided, the rolls must be cleaned off to remove the hardened size, and the scum, moreover, has to be removed from the top of the sizing in the vat. w

When, therefore, with machines as at present organized, a new set of ends is to be counted in, which operation must he performed at the front end of the machine. it is inevitable that there will be a defective portion in the yarn ata distance from the front end of the new set about equal to the distance of travel of the yarn fromthef size rolls to the delivery roll, whichis usually a matter of 2501 30 yardsfunless" the size rolls are cleaned off after the new set is counted in and before the machine is started again. Accordingly, it is the customary practice at the present time, at least in pat tern work and sometimes in plain work, not to attempt to size these first 25 or 30 yards of the new set at all, butto' cut them off and discard them as waste, rather than to take the time to clean off the size' rolls. Moreover, in any case, the scum must be re'moved'from the sizing in the tank.

By the use of my invention all but a small part of this heretofore wasted yarn is saved, and the formation of a scuin on the sizing is avoided.

In the accompanying drawings,

Figure 1 is a diagrammatic side elevation of a slasher or sizing machine, with-parts of the mechanism hereinafter referred to omit ted for thesake of clearness,

Fig. 2' is an elevation showing in part the clutch mechanism hereinafter referred to, looked at from the side of the machine; and

Fig. 3 is a sectional view of said clutch mechanism, on the line of Fig. 2.

Referring to Figure 1,-1, 1, 1, indicate yarn beams from which yarn as indicated at a passes to a sizing tank 23,- mounted in a suitable fran'1ework 3, and filled with sizing, as usual, to a level high enough to submerge the lower portions of the size rolls 4, 4. The yarn passes from the yarn beams over the guide rolls 5, 5; thence into the sizing under the immersion roll 6; thence between the first size roll a and the co-operating upper squeez roll 7; thence between the second size roll f and the co-operating upside of the machine, which carries a bevel gear 14 which bevel gear drives, by well known intermediate gearing, the shafts of the two siz rolls.

The mechanism thus far described is common to slashers now in use and requires no detailed description.

In machines of this class as heretofore in use, the shaft through which power is transmitted to thesize rolls has been so connected up with the mechanism for driving the delivery roll that the delivery roll is rotated at all times when the size rolls rotate, so that it is impossible to stop the progress of the yarn through the machine without also stopping the rotation of the size rolls.

1 have provided mechanism whereby the delivery roll of the machine may be stopped without stopping the rotation of the size rolls this mechanism being shown in detail in Figs. 2 and 3.

Referring to these figures, 15 is a shaft mounted in suitable bearings, one of which is indicated at 16, which carries the delivery roll 10. Upon an extension 15 of this shaft is mounted the centrally bored gear member 17, which is free to rotate on the shaft 15 and which carries the two

gears

18 and 19, these two gears, therefore, always rotating in unison. A collar. 17 provided on shaft 15 holds the member 17 in proper position longitudinally of the shaft.

Power fordriving the machine is trans- .mitted to the mechanism through the gear 18, which meshes with a suitable driving gear, not shown. Gear 19 meshes with a bevel gear 20, mounted on the front end of the shaft 14. Rotation of gear 18, therefore, causes the rotation of said shaft 14, and thereby of the size rolls 4? and t, through the intermediate gearing heretofore men tioned.

21 is a clutch member which as shown consists of an inner sleeve 22 and an outer sleeve 23, rigidly connected therewith in any suitable manner, the clutch member being mounted on the extension 15" of the shaft 15 and being keyed thereto by means of the key 24, so that rotation of the clutch member vi ill cause the rotation of the shaft 15, 15, the clutch member being, however, movable longitudinally on said shaft.

At the inner end of the clutch member are clutch teeth 25 adapted to engage with clutch teeth 26 carried by the gear 18 when the parts are in the position indicated in Fig. 3, so that when the parts are in this position rotation of the gear 18 causes the rotation not only of the size rolls but also of the delivery roll 10. 27 is a lever for controlling the, clutch, which is pivoted at 28 upon a bracket attached to the frame of the machine, 28, and carries at its end a fork 29, which engages in a peripheral groove 30 in the clutch member by means of pins 31 carried by the fork. By moving this lever, therefore, the clutch member may be moved out of engagement with the gear 18, and thereby the delivery roll may be stopped without stopping the size rolls.

The lever is provided with a latch 32 of well-known form for locking the lever, so as to hold the clutch either in operative or in inoperative position.

The mechanism above described enables me to continue the rotation of the size rolls of the machine during the time when the delivery roll is stopped, so that the yarn is not being fed through the machine; and by keeping the size rolls constantly rotating during the periods when the machine is shut down, I prevent any deposit of hardened sizing upon the size rolls and prevent the formation of any scum on the surface of the sizing.

lVith a machine equipped with the mechanism above described, when a new set of ends is to be tied in, the clutch is disconnected so as to stop the delivery roll and the upper squeeze rolls 7 and 7 and the immersion roll 6, are raised in usual manner. Then when the machine is to be started again, these rolls are replaced and the clutch moved into engaging position so as to startthe delivery roll.

W hat I claim as new and desire to secure by Letters Patent is z- 1. In a yarn sizing machine, a sizing tank, size rolls therein, a delivery roll, a delivery roll shaft, a gear member mounted loosely on an extension of said shaft and operatively connected with the size rolls, a clutch member keyed to said shaft and movable longitudinally thereon, and means for engaging and disengaging said clutch member with said gear member. q

2. The method of operation during the tying-in of the ends in a yarn-sizing machine which consists in stopping the passage of the yarn through the machine by stopping the delivery roll and removing the upper squeeze rolls from the size tank, and continuing the rotation of the size rolls in the size tank.

3. The method according to claim 2 in which the immersion roll and the yarn are removed from the size tank.

In witness whereof I have signed my name to this specification.

GEORGE r. sure