US1893050A - Tape condenser - Google Patents

Description

H. BURHENNE TAPE CONDENSER Jan. 3, i933.

2 Sheets-Sheet l Filed Jan. 4, 1932 Fig. l.

Invenror'. Henri Burhenne Jan. 3, 1933.

H. BURHENNE TAPE CONDENSER Filed Jan. 4, 1932 2 Sheets-Sheet 2 Inver. Henri Burhenne Patented dan. 3, 1933i HNB BUBHENNE, OF NGRTH ANDOVR, IVASSCHUSETTS, ASSGNOR- TO DAVIS &

FURBJE?.A MCHNE COh'PfiNY, GF NORTH ANLGVER, MASSACHUSETTS, A CORPORA- TION or raasseoiusnris TAPE CQNDENSER .Applicatoi'i` filed January 4 series of endless tapes or by a single continuous e* dless tape passing around dividing rolls and in which these slivers are carried by the tape runs and passed between leather aprons which act to condense each sliver into a roving. ln this type oi. machine the number of roving ends formed from the web taken from the carding machine depends upon the number Iof tape runs with which the machine is equipped at the dividing rolls and consequently it has been necessary to change the dividing rolls, the tapes and other features of' the machine each time it was desired to vary the number ci slivers into which the web or bat was to be divided. Such a change oi the machine involving new dividing rolls, an entirely new set of tapes of the required width and other parts entailed large expense not only because orn the new parts thus require-d but because oic the time involved in y making the change and the loss of production.

t is the object of the present invention to provide a construction in which, without the substitution oi any new parts and without the loss of any material amount of time, the tape condenser may produce from a given width of web or bat a given number of roving ends or one-half that number, thus doubling the usefulness of the machine.

rlhe object ot the invention is further to produce a tape condenser in which the tape runs of each pair are guided into close proX- imit-y as they pass a set ot condensing aprons to cause the two slivers carried by these runs to be taken together and condensed into a single roving by the aprons.

These and other objects and features of the invention will appear more i'ully from the accompanying description and drawings and will be particularly pointed out in the claims.

l/Vhile the invention may be embodied in any tape con denser, there are two well -known types to which it is particularly applicable. ln one type, as usually constructed, there is one tape 'for each two slivers and this tape passes around both dividing rolls presenting 1932. Serial No. 584,671.

a sliver on one of its runs to one bank of condensii j' aprons and another sliver on another oi its runs to a second bank of condensing aprons, while the nent tape presents a sliver on one t its runs to a third bank of condensing aprons and a second sliver on another of its runs to a fourth bank of condensing aprons. ln the other type, the dividing rolls are provided with deep grooves and there is a separate tape presenting a separate sliver to each bank of condensing aprons. A preiP'erred Form ot the present invention is parularly illustrated in connection with the firsttype and diagrammatically in connection with the second type.

As the invention is only concerned with ce1 ain features oi the entire machine and as the generarconstruction and operation of these machines are well known and familiar to those rilled in the art, it is only necessary here to illustrate and describe in detail those features with which the invention is particularly concerned.

In the drawings:

Fi l is a more or less diffigrammatic view lng the trame of a tour-bank single anron tape condenser of the shallow groove i of l iding rolls with one tape for each 'vers 'formed fr m the web or bat.

ig. Q a diagrammatic representation of tic gement in a four-bank single apron tape rondenser having the deep grooved type t dividing rolls with one tape for each i Fig. 3 is a rear elevation partially broken away disclosing a construction embodying the present invention with the tapes mounted and guided to produce a single roving from each pair of slivers.

Fig. 4t is a view similar to Fig. 3 showing a slightly different construction embodying the invention.

Fig. 5 is a detail of a means for positioning the tapes as required by the present invention. K

Fig. 6 is a perspective view showing the process of combining and condensing two sliver taken from two proximate runs of tape into a single roving end.

The machine illustrated comprises suitable are endless leather aprons'and are vdrivenso that their opposed runs travel rearward and are reciprocatedendwise in the familiar manner. Consequently, a sliver Jedinto the frontend' of each pair or" aprons is rolled and condensed as itis fed forward to produce a roving end. The roving ends delivered from the condensing aprons pass as usual on 20.1

to spools, one oi which is shown at 16. rllhese spools are rotated by friction rolls 12 13, 14, and 15. Y

' The endless tapes which pass around the dividing rolls 2 and V3 are guided in their course by suitable idler. rolls 17 to 26, inclusive.

' Ait each si le oi the machine relatively wide tapes are employed to separate carry ,awaythe irregular edges of theweb. The

remainder of the web is separated by the other tapes into slivers which are subsequently condensed into the roving ends.

One tape passes at 28into the groove of -the dividing roll 2, thence at 29 onto the opposed ridge ci" theV dividing roll 3,

thence around the idler 23 is Given a half i 7 1':

twist at 30, thence passes at 31 around the rolls 24, 25, and 26- then returns at 32 to a groove in the dividingroll 3, thence passes at 83 around the opposed ridge of the dividing roll 2, thence around the idler 18, then is given a hal twist at 34 thence passes at 85 around the rolls 20 and 19, is given a half twist at 36 and returns to the point where it "f started at 28. The nexttape to the right .iol-

lows a similar course excepting that in the upper half of the machine it runs at 37 around the three rolls 21, 20, and 19, and at the lower half of the machine from the idler 23 at 38 around the rolls 25 and 26.

. rlhe bat or web 89 stripped from the carding machine by the doffer comb 40 enters between the dividing rolls 2 and 3 and is separated into slivers, one sliver being carried by each of the diverging runs 29 and of theiirst tape between these runs andthe Vridges or" the dividing rolls and the other slivers being carried in a similar manner by 'the diverging runs of the other tapes. i e0 Y In 4the usual construction, each tape run diverging from each dividing roll carries a sliver-and the sliver carried by each tape run which passes around the rolls 20 and 19 is delivered to the bank of aprons 4, 5, the sliver oarriedby 1each tape run passing around the renace@ rollers 21,20 and 19 is delivered to the bank of aprons 6, 7, the sliver carried by each tape run passing around the rolls 24, 25, and 26 is delivered to the bank of aprons 8, 9, and the sliver carried by each tape run passing around the rollers 25 and 26 is delivered to the bank of aprons 10, 11.

In the present invention the runs of all the tapes which diverge in one direction, for example, upward, 'from thedividing rolls pass adjacent a single pair of condensing aprons so as to ,deliver their slivers thereto and the runs oi all the tapes which diverge in the other direction from the dividing` rolls, for example, downward, pass adjacent another single pair of condensing apronsso as to deliver their slivers thereto. may be secured in the ordinary type of tape condenser illustrated simply by bodily adjusting the base of condensing` aprons 6, 7 and 8, 9 rearward on the 'rame'of the inachine, as shown in Fig. 1, so that their orward ends will not be in position to take 'the sliversfrom the tapes. Consequently it will be seen that all the slivers carried bythe tape runs-,at the top of the machine will be delivered to the bank of aprons 4, 5 and all the slivers carried by the tape runs the bottom of the machine will be delivered to the bank of aprons 10, 11.

Furthermore, in. ythe present inventiony means are provided for guiding` the runs of each pair of tapes into close proximity as they pass the pair of condensing aprons to which they deliver their slivers. Various means may be provided for bringing the runs of' tapes thus into close proximity. ln Figs.V 1 and 3 the rolls 2O and 25 are grooved at such intervals as to receive the tape runs passing respectively around the rolls 2O and 19;l and around` the rolls 25 and 26. The iournals of these two grooved rolls 2O and 25 are longi--` tudinally adjustable in the machine frame and to provide the desired construction each of these rolls is longitudinally adjusted into .the position shown in Fig. 3 so that the runs of tape carried by the grooves'thereo-i' are moved over laterally into close proximity to the other set oi runs oftapes. A suitable adjustment for this 'purpose is shown in Fig. 5

in connection with the roll 20. rlhejournal Y 41 of this roll 20 extends through a bearing 42- sec'ured in the 'traine 1 and' collarsV 43 are secured by setscrews 44`to the journal 41 at each end ot' the bearing 42. Thus by loos-k ening the set screws 44, the journal 41 may 1 be Vadjusted longitudinally in its bearingto."

the required extent.V Thegrooved rolls 2O andj25 areso adjusted and set in their lateral position-that the belt. runs passing through the groove thereof are brought Yinto close proximity to the adjacent This result belt runs, as shown in Fig. 3. vPreferably v the pair of'belt runs do not touch each other or run so close that the Aedges of the slivers Vcally in Fig. 2.

carried thereby are caught or pinched between the two belt runs although in some cases the edges may run in contact.

lilith the machine thus constructed, the two slivers carried by each pair of belt runs thus brought into close proximity are together taken olli by the single bank of condensing aprons and rolled together and condensed thereby into a single roving. r-is shown in Fig. l, for example, each pair ot slivers carried by the adjacent belt runs diverging upward from the dividing roll 2 are taken by the bank of aprons il, and condensed into the single roving l5 and all the rovings issuing from this banlr ot aprons Ll, 5 are wound up on the jack spool 16. So also each pair of slivers carried by the belt runs diverging downward from the dividing roll 3 are talren by the bank of aprons l0, ll and condensed into the single roving 4:6 and all the rovi V issuing from this banlr of aprons l0, ll are wound np on another ack spool.

Thus a tane condenser embodying this vent-ion is enabled with a set of tapes ot a given width to bring the slivers carried thereby into pairs and Lorm each pair into a sini, roving. yEhe quality ot the rovings is ifnproved because ot the doubling and mixing of the libres which thus takes place, tending to equalize the quality. But the great vantage lies in being able to produce roving or twice the size that would be produced it the tapes acte-d in the usual manner.

ln Fig. ti there is illustrated one et the aprons such as 5 with the two slivers prese l by the belt runs and being coudensed into the single roving 45.

The grooved rolls employed tor positioning one set of tape runs in close proximity to the other may be such as usually employed. in a tape condenser because the tape runs which are not shifted laterally only run tangent to `hese rolls and may readily ride on the ridges between the grooves.

Other means than that already described may be provided for bringing the two belt runs into close proximity. For example, as shown in Fig. 4, the roll 47 having t ie position corresponding to the roll 2l and the roll 48 having the position corresponding to the roll 2l may be grooved and carry respectively in their grooves the belt runs 37 and 3l, respectively, so that these sets of belt runs are moved by positioning laterally the rolls and 4:8, in the manner already described, to bring the runs of each pair of tapes into the required close proximit-y.

The principle ot the invention may also be applied to the deep grooved type of dividing roll condenser in which one tape is employed for each sliver, as illustrated diagrammatilln this case the intermediate banks of condensing aprons 49, 50, and 5l, 52

are the ones which take the pair of slivers and bring them together and condense them into single rovings. The dividing rolls 53 and 54 are provided at regular intervals with deep grooves so that in the well-known manner each tape carrying a sliver, viz., 55, 56, 57 and 58, is a single endless tape. he tapes and 56 are brought into close proximity by suitable means, such as the lateral adjustment of the grooved roll 59 and in a similar manner, by the adjustment et' the grooved roll 60, the tapes 57 and 58 are brought into close proximity.

lVhile the. slivers are illustrated as passing directly 'from the tape runs to the condensing aprons, it is to be understood that intermediate stripping' rolls may be employed within the'scope ot the invention.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is

l. A tape condenser comprising a pair of dividingrolls, a series ot endless tapes engaging and laterally separated by said rolls with each of said tapes carrying away from said rolls on each of two diverging runs, a detached sliver, a pair of condensing aprons mounted adjacent the runs of all of lche tapes which diverge in the one direction, and adj acent the sliver carrying portions of said tape runs to cause the slivers to be taken from all of said runs by said pair olf aprons, a second pair of condensing aprons mounted adjacent the runs which diverge in the other direcion, and adjacent the sliver carrying portions of said tape runs to cause the slivers to be taken from all ot said runs by said pair of aprons and means for guiding the sliver carrying portions of the tape runs by pairs into close proximity as they pass the condensing aprons to cause the two slivers carried by said runs to be taken together and condensed into a single roving by the aprons.

2. A tape condenser comprising a pair of dividing rolls, a series of endless tapes engaging and laterally separated by said rolls with each of said tapes carrying away from said rolls on each of two diverging runs, a detached sliver, a pair of condensing aprons mounted adjacent the runs of all of the tapes which diverge in the one direction, and adjacent the sliver carrying portions of said tape runs to cause the slivers to be taken from all of said runs by said pair of aprons a second pair of condensing aprons mounted adjacent the runs which diverge in the other direction, and adjacent the sliver carrying portions of said tape runs to cause the slivers to be taken from all of said runs by said pair of aprons a grooved roll having its grooves engaging the runs of alternating tapes diverging in the one direction, a second groovefl roll having its grooves engaging the runs of alternating tapes diverging in the other direction, and means for positioning the said grooved rolls to guide the sliver carrying portions of the tape runs engaged by the grooves thereof into close proximity to the sliver carrying portions of the other runs as they pass the condensing aprons to cause the two slivers carried by each of said proximate runs to be taken together and condensed into a sinfrle roving by the aprons.

3. tape condenser comprising a pair of dividing rolls, a series of tape runs engaging and laterally separated by said rolls with each of said tape runs carrying away from said rolls a detached sliver, a pair of condensing aprons vmounted adjacent the tape runs whichdiverge in the one direction from ther dividing rolls, and adjacent the sliver carrying vportions of said tape runs yto cause the slivers to be taken fromV all of said runs by said pair .of aprons, a second pair of condensing apronsfinounted adjacent the tapesruns which diverge' in the other direction, and adjacent the sliver' carrying portions of said tape runs to cause the slivers to be taken from all of said runs by said pair of aprons, and means :for guiding the j sliver carrying Vportions of the tape runs by pairs into close proximity asthey vpass the condensing aprons to cause the two slivers carried by each said pair to'be taken together and condensed into a single roving by the aprons.

4; A tape condenser comprising a pair of dividing rolls, two pairs of condensing aprons, Vtwo diverging series of tape runs, each series acting to carry separate slivers on each run of the series from the dividing rolls to one pair of the condensing'aprons and means for causing the said slivers onL each series of runs to be divided into groups with each group consisting of a plurality of adj acent slivers and the slivers of each group to be taken together and condensed into a single roving by the respective pairs of aprons.

In testimony whereof, I have lsigned my name to this specication.

HENRI 'BURHENNE

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