US1455884A

US1455884A - Split-lap preventer

Info

Publication number: US1455884A
Application number: US546783A
Authority: US
Inventors: Harrop William; Reilly Peter; Patrick F Farrell
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-03-25
Filing date: 1922-03-25
Publication date: 1923-05-22
Anticipated expiration: 1940-05-22

Description

May 2 2,- 1923. 1,45%4

HARROP ET AL May 22, 1923.

W. HARROP ET AL SPLIT LAP PREVENTER FiledMarch 25, 1922 2 Sheets-Sheet 2 wuwwtozs W Harro F. fiez il P Patented WILLIAM HARROP, PETER REILLY, AND PATRICK F. FARRELL, OF NEW BEDFORD,

MASSACHUSETTS.

SPLIT-LAP PREVENTER.

Application filed March 25, 1922. Serial No. 54:6,783.

To all whom it may concern:

Be it known that we, WILLIAM Hennor, PETER REILLY, and PATRICK F. FARRELL, citizens of the United States, residing at New Bedford, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Split- Lap Preventers, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to cotton yarn forming machinery, and particularly to sliver lap machines or to machines of like character, such as pickers, ribbon lappers, etc.

In the operation of machines of the character described, and-where a sliver lap or.

thin layer of carded or partially combed cotton is wrapped spirally upon a receiving roll, there is a liability of the material.

thread between the layers of sliver as they are wrapped upon the receiving roll or spool.

A further object is to provide an attach ment for sliver lap machines, pickers, ribbon lappers, etc., whereby this separating thread may be laid upon the upper surface of the sliver as it passes between the calender rolls, and furthermore whereby this thread may be laid in a zigzag course across the upper face of the sliver.

Still another object is to provide means whereby the usual stop motion of the sliver lap or equivalent means maybe caused to be actuated upon the breaking of the thread.

Another object is to so construct the attachment that the thread may be fed to the machine between the sliver lap and the upper calender rolls with a sufficient tension and may be fedat a speed corresponding to r Our invention is illustrated in the accompanying drawings, wherein Figure 1 is a fragmentary side elevation ofa portion of a sliver lap machine showing our invention applied in connection with the calender rolls thereof;

Figure 2 is a front elevation of the cal--. ender rolls and our mechanism applied thereto;

Figure 3 is a longitudinal sectional view through the housing enclosing the worm;

Figure 1 is a face view of the lap after the thread Y has been applied thereto.

In Figure 1, we illustrate sufficient of a to show the application of our invention, and in these drawings A-A indicate an upper pair of calender rolls, 13-13 the lower pair of calender rolls, C the draft rolls, D the spool upon which the lap is being wound. or wrapped, and E-E the usual fluted lap rolls which support the wooden spool E. All the parts are of any suitable or usual construction, it being understood that the sliver passes from the usual cans through guides (not shown) to the draft rolls C and thence between the calender rolls A and B, and fromthence to the winding spool'D. The sliver passin between the calender rolls is designated Our attachment comprises supports 10 i which are attached to the frame of the sliver sliver lap machine of ordinary construction slightly in advance of the series of calender rolls. This frame supports upon it a shaft 11 carrying a pulley 12 and rotated by a rope drive 13 from the main shaft of the machine, this shaft 11 carrying upon it a reversely screw-threaded worm or equivalent member 14 having acontinuous screwthread. Operatively engaged by this worm and, therefore, traveling back and forth across the machine is a traveler 15. This traveler has an arm 16 projecting outward therefrom, which carries an trumpet 17 at its forward end. The upper ends of the brackets or supports 10 carry a tranverse rod 18.

The thread which is to separate the two adjacent layers of sliver is wound upon a roll 19, the periphery of the roll of thread resting upon the upper calender rolls A..

is provided; with an electrical stop motion Inasmuch as these calender rolls rotate in a counter-clockwise direction, it will be obvious that the roll 19 will rotate in a clockwise direction and, that as the machine op erates the thread will be drawn off the roll 19 down through the trumpet 17-.- This read: teas s be ea h pp r a en er rolls A and rests uponthe upper face. of the sliver lap X which is passing between the rolls. The traveler 15 has a traverse equal in width to the Width of the lap or sliver and as a consequence the thread will be laid in a zigzag fashio n upon the upper face of the sliverfas illustrated in Figure 4, and this thread will thus be disposed between the layers o fsliver on the lap spool B, separating these layers and preventing them from becoming ent ngled. It will be seen thatthe thread'is drawn in between the rolls and the lap at a speed equal to that of "the lap, and-that there is only a slight tension on thisthre ad because of the fact that the roll 19 is positively rotated by the calender rolls.

Every sliver lap machine or ribbon lapper whereby in case the lap becomes thin or brealrs,"tlie machine will be immediately brought to a stop by the closing of a circuit 39 tliiiciujgil the metallic parts of the machine,

circuit being normally held open by the interposition 'of the lap between certain metallic'par'ts, In order 'to provide means for stoppingthe machine in case the separating breaks, we mount uponthe. travel a thread "l5the angular lever 20. This} lever is pivotally mountectupon the traveler and its longer arm extends downward and rearward toward, the calender roll- A, while the shorter arm of'the lever extends down-' ward and forward; and is formed with an elongated eye,.2 1, beneath which the thread passes. This elongated eye 21 is so disposed that the thread in" its passage ,from, the, trumpet to the calender roll frictionally engage this eye and tend to draw it downward, thus lifting the rear arm ofi'iof'the calender roll. If, for any reason, the threadv Y should break and,

'the truinpetflT the calender 'rollbe relaxed, the eye 21 will moveiupward and the arm 22will' move downward and into, electrical. engagement with the calender roll.

' This will energize an electro-magnet, which in turn willi a ctto draw suitable stopjnto position in front of an arm on therock shaft of the machine and thus stop the op-- eration of the machine in a, manner well U known to those who are skilled in the art,

n much s, t is; m chanism wh We have describedfis simply-a means for closing a circuit and thereby? stopping: the machine by the ordinary stop mechanism common to these machines, we have not indicated the position in front of 1 an arm 28 on a rock shaft 29, this rock shaft being found on all machines and being used for the purposeof stopping the machine, in the well known manner.

We have illustrated diagrammatically the Y lever 20 and the forward calender roll- A as being electrically connected by wires d=irectly to the battery 25, but it wifllbe under stood that these wires 23 and 24- are merely symbolic of any conductive circuit and-'- the circuit might be made through any metallic parts of the machine, and'the clrcuitmay be either grounded at one end; or have a re turn conductor.

lVhile we do not wish to'be limited to the" particular arrangement of the worm 14,- we have lllustrated in Figure 3 a preferable construction. wherein the worm 14 is dis- 7 posed within a housing 30, the traveler 1 5- sliding upon this housing and: this traveler carrying an inwardly extending pin 31 formed with a head 32 enga ing in. the screw thread in the worm 14". stlie worm rotates continuously onefdirection, it will be obvious that the traveler, will slide back and forth in the manner heretofore stated, the traveler being guided in the slot-33 of the housing through which the pin 31 projects.

The operation of themechanism is obvious from what has gone before, and it will be seen that by the means whlch we have described a thread is la d down 111 a igzag path between the layers of lap astliey rolled up uponthe receiving roll so" that the layers are to thisextent'separated and there is no possible chance for any splitting ofthe lap, e do not wish to be limited to the particular form of. traverse mechanism shown for causing the traverse'of the travel er 1 5, but this traverse mechanislmis sim ple, positive and thoroughly effective for the purpose. Other details might be modified in many ways without. departing froinithe spirit of the invention as definediinl the appended claims.

We clairn r+ 1-. Inamj the combination with a winding spo w ch he ap-.isw ensi Qfim ars fe dispos ns a ep aties, hread n a approximate y, zigzagline uponthe face ofthe appear to its passage "to" the'winding spool.

ashine f. he arac er scribed; 'QPQI? Y alternately in opposite 2. The combination with a sliver lap machine including rolls between which the lap passes, and a winding spool upon which the lap is wound, of means for disposing a separating thread in a zigzag line upon the face of the lap prior to its passage to the winding spool.

3. A sliver lap machine including calendering rolls, a winding spool, and means for disposing a separating thread upon the lap prior to its passage to the calendering rolls, and in a zigzag course over the face of said lap.

4:. A sliver lap machine including calendering rolls, a winding spool, and means for disposing a thread in a zig zag course upon the face of the lap prior to its passage through the calendering rolls and including a traveler having a thread guide, and means acting to cause the traverse of said traveler alternately in opposite directions transverse to the path of movement of the lap.

5. A sliver lap machine including calendering rolls, a winding spool, and means for disposing a thread in a zigzag course upon the face of the lap prior to its passage through the calendering rolls and including a traveler having a thread guide, means acting to cause the traverse of said traveler directions transverse to the path of movement of the lap including an endless reverse screw with which the traveler engages, and means connected to the driving mechanism of the machine for rotating said screw.

, 6. A sliver lap machine including calendering rolls, a winding spool, and means for disposing a thread in a zigzag course upon the face of the lap prior to its passage through the calendering rolls and including a traveler having a thread guide, means acting to cause the traverse of said traveler alternately in opposite directions transverse to the path of movement of the lap, and a thread containing spool resting upon the upper calendering rolls, the thread passing to and through the guide carried by the traveler. I

7. In a sliver lapimachine, upper and lower pairs of calendering rolls, alap receiving spool, and means for laying a thread in a zigzag course upon the face of the lap prior to its passage through the calendering rolls comprising a thread spool, a thread guide, a traveler having a trumpet, and means for giving a reciprocation to the traveler transverse to the'path of movement of the lap, the thread from said spool passing over the first named guide and to said trililmpet and thence between the calendering r0 s.

8. A method of preventing split laps consisting in laying between the laps a thread having portions extending transversely of the lap.

9. A method of preventing split laps consisting in disposing a thread in a zigzag course between the contacting faces of adjacent laps.

10. A sliver lapping machine including a receiving spool upon which the lap is wound,

means for laying a thread in a zigzag course upon the face of the lap prior to its being wrapped upon the receiving spool, and means for stopping the sliver lapper in case said thread breaks.

11. A sliver lapping machine including a receiving spool upon which the lap is wound, means for laying a thread in a zigzag course upon the face of the lap prior to its being wrapped upon the receiving spool, means for stopping the sliver lapper in case said thread breaks including an electrically actuated stopping mechanism, and contacts adapted to close a circuit through the stopping mechanism, said contact being nor mally held in an open circuit position by the passage of the thread.

12. A sliver lapping machine including a receiving spool upon which the lap is wound,

means for laying a thread in a zigzag course upon the face of the lap prior to its being wrapped upon the receiving spool, means for stopping the sliver lapper in case said thread breaks including an electrically operated stopping mechanism normally in an open circuit with a source of current, and a lever adapted to close said circuit and having an eye frictionally engaged by the thread when the thread is under tension, the engagement of the thread with the lever holding the lever in an open circuit position.

In testimony whereof we our signatures.

WILLIAM HARBOR PETER REILLY. PATRICK F. FARR-ELL.

hereunto aiiix