US1139609A

US1139609A - Fiber-trimming apparatus.

Info

Publication number: US1139609A
Application number: US637215A
Authority: US
Inventors: Marvin S Weaver
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-02-05
Filing date: 1915-02-05
Publication date: 1915-05-18
Anticipated expiration: 1932-05-18

Description

M. S. WEAVER.

FIBER TRIMMING APPARATUS.

APPLICATION FILED SEPT-8, 19H. RENEWED FEB. 5, I915.

1,139,609; Patented May18,1915.

INVENTOR A Home ED STATES rmaa-rammmo Arramms,

Specification of Letters Patent.

Patented May is, 1915.

Application fl1ed. September 8, 1911, Serial No. 848,368.; Renewed February 5, 1915 Serial No. 6,372.

To all whom it may concern Be it known that I, MARVIN S. WEAVER,\8. citizen of the United States, residing at Johnson City, in the county of Washington and State of Tennessee, have invented a new and useful Improvement in Fiber-Trimming Apparatus, of which the following is a specification, referencebeing had to the accom- I i f for-shearmg. Said blades are mounted on panying drawing. I

My improvement relatesto means for re- 'moving loose fiber ends from the surfaces of fiberfabrics, for example, cloth, carpets, etc.

7 vide means for placing the loose fiber ends, v

- ting edge of the kn1fe,"1, is a pneumatic head, 11, having a mouth, 12, next said edge;

The object of the improvement is to prowhich are to be removed wholly or in part, approximately perpendicular to the surface to which they are attached, in order that said fiber ends may be morereadily reached --or engaged-by the means used for removing .20

or partially removingv such fiber ends. For example, in the finishing of cloth by shearing or singeingthe surface, the fiber ends which are to be removed by shearing or singeing are to be made to stand approximately perpendicular to the surface of the cloth, in order that they may be more readily engaged or reached by the means usedfor shearing or singeing. Moving'air is the agent used for causing such fiber ends to stand approximately erect or perpendicular tofthe surface to which said fibers are attached. As will hereinafter appear, the air thus used may be moved by driving or by suction or exhaustion; and the means used for producing the air movement may be varied ac'cordmg to conditions. The mechanism used for producing such air movement may also, as will hereinafter appear, be used as a means for conveying or conducting the all cut portions of the fibers away from the sur- In the accompanying drawings, Figure 1' proxlmately perpendicular to the surface of ing at right angles to the direction of sight in Fig.1; Fig. 3 is, an upright section of another form of the apparatus; Fig. 4: is a sectional plan 'of the same apparatus; Fig. 5 is a modification of the apparatus shown in Figs. 3 and 4; Fig. 6 is a modification of the apparatus shown in Figs. 1 and 2. 4

Referring first to Figs. 1 and 2, A is a sheet of cloth or similar fiber fabric from the surface of which projecting'fiber ends are-to besheared. A stationary knife, 1, is supported-by a plate, 2, by means of binding bolts, 3, extending through slots, 4, in the plate, 2. Any number of adjusting bolts, 5, are seated in the plate, 2, to bear against the back of the knife, 1, for the adjustment of said knife. spiral blades, 6, are arranged to work 111 opposition to the blade, 1,

the arms, 7 supported on hubs, 8, which surround-and are rigidly secured to a rotary dri ve'shaft,' 9, resting in suitable bearings (not"shown)";and-receiving power by any means not shown; 3 Directly below the cut- Said head is a little longer than said knife,

Qand said mouth is narrow and approximately as long as said knife. The sheet of cloth extends across and rests upon the lips, 13, the space between said lips and the knife, 1, being made suflicient only for the free movement of the cloth between said lips and the cutting edge of said knife. At each slde of and parallel to the pneumatic head is a guide roller, 14, beneath which the sheet knife, 1, and the pneumatic head, 11, while the shaft, 9, bearing the spiral blades, 6, is being rotated. A pipe, 15, leads to the pneumatic head, 11, from any suitable devices or apparatus for driving air through said pipe and thence through said pneumatic head and the mouth, 12, against and through the cloth sheet, A. The stream of air thus moving through said cloth is apperpendicular to the path traversed by the fabric.

In Figs. 3 and 4,; stationary sickle blade,

. ing a pneumatic head.

16, is substituted for the stationary knife, 1, of Figs. 1 and 2 and the reciprocatory blade, 17, is substituted for the spiral blade, 6.

A pitman, 18, reciprocates the blade, 17.

The cloth, A, extends over a roller, 19, and a guide plate, 20. Above the sickle blades and the cloth is a hood or housing, 21, form- A pipe, 22, leads from said head to any suitable means or mechanism for exhausting air out of said head through said pipe. lhe hood, 21, projects forward of the sickle blades and bears upon the upper face of the cloth, A, thus leaving a space between the edge of said hood and the knives along which only the cloth intervenes between the outside atmosphere and the space within the pneumatic hood, thus allowing the outside air to push upward through the cloth in a stream to supply the air being exhausted from said head through the pipe, 22. This stream of air thus passing by exhaustion upward through the cloth adjacent the cutting means (the two sickle blades), causes the loose fiber ends on the upper faceof the" cloth to rise and stand approximately perpendicular to the upper face of the cloth in front of said cutting means, in suitable po sition to be sheared closely to the surface of the cloth. I 1 v In Fig. 5, the sickle blades are used as 'in Figs. 3 and 4; but the hood, 21, is omitted and the pneumatic head, 11,-of Figs. 1 and 2 is located below the cloth for driving air upward through the cloth. in front of the sickle blades.

In Fig. 6, the cutting mechanism of Figs. 1 and 2 is used but the pneumatic head, 11, of Figs. 1 and 2 is omitted anda pneumatic head, 23, placed above the knife, 1, and the knife plate, 2, and around the rotary knife member which comprises the three spiral blades, 6, the wall of the head, 23, meeting: the upper" face of the cloth a little way in front of the cutting edge of the stationary knife, 1, thus leaving a portion of the clot immediately in front of the cutting edge of said knife clear for the passage of air upmately perpendicular to the surface of the cloth and causes the loose ends 'of fibers on the upper face of the cloth surface to rise and stand approximately perpendicular to the surface of the cloth in suitable position to adapt the knives to shear'said fibers close .65 p

to the surface of the cloth.

In all of these several forms of the apparatusfthere is a relative movement or traversing between the fiber-removing means and the fiber-bearing. surface; and the cutting is done in a planewhich is parallel to the liber b'e'aring surface orthe fabric path;

and the air movement is approximately perpendicular to the fiber-bearing surface or fabric path and away from said surface or fabric path and adjacent to the fiber-removing means. In Figs. 1, 2 and 5, the stream of air thus moving approximately perpendicularly away from the. fiber-bearing surface is formed by driving air to and through the fabric having the fiber-bearing surface, while in the forms illustrated by Figs. 3, +1

and 6, suchstream of air is formed by ex-' haustion .or the production of a partial vacuum above the fiber-bearing surface.

The spiral blades, 6, the arms, 7, the hubs, 8, and the rotary drive shaft, 9, of Figs. 1, 2 and 6 together constitute a rotary cutting memberyoperating in conjunction with the stationary knife, 1, to shear said fibers.

I In the forms shown by Figs. 3, 4e and 6,

the fiber fragments cutfrom the cloth are carried away with the air exhausted from the pneumatic head.

The method herein described is made the subjectof an application for Letters-Patent,

'Ser. No. 748,969. filed Feb. 17, 1913.

I claim as my invention: 1, 'An apparatus adapted to relatively trav- "erse the-surface of a sheet form fiber fabric and comprising means operating parallel ito said surface for removing surface fiber ends along said surface and means for moving air and limiting such movement to a coursethrough said fabric and adjacent and toward said fiber end removingmeans,

.whereby surface fiber ends may be directed outward from said surface into position to be removed by the fiber end removing means, substantially as described.

g 2. An apparatus adapted to relatively traverse the surface of a sheet form fiber fabric and comprising means operating parallel to the fabric for cutting surface ber ends ,along said surface and means for moving air and limiting such movement to a course through said fabric and adjacent and toward said fiber end removing means, whereby surfacefiber ends may be directedoutward from said surface into position to be cut by the cutting means, substantially as described.

3. An apparatus adapted to relatively traverse the surface of a sheet form fiber fab-- ric and comprising means operating parallel to said surface for removing surface fiber ends along said surface and'means for moving air by exhaustion and limiting such movement to a course through said fabric and adjacent and toward said fiber end removing means, whereby surface fiber ends 1,1se,ece

may be directed outward from said surface into position to be removed by the fiber end removing means, substantially as described.

4. An apparatus adapted to relatively traverse a' sheet form fiber surface and comprising means' operating parallel to the fab ric for cutting surface fiber ends along said surface, and means for moving air by exhaustion and limiting such movement to a course through said fabric and adjacent and toward said fiber end removing means, whereby surface fiber ends may be directed outward from said surface into position to be cut by the cutting means, substantially as described.

5. An apparatus adapted to relatively traverse a sheet of fiber fabric and comprising surface'fiber end cutting means located opposite and near said surface and outside of the plane of said fabric and consisting of a relatively stationary knife and a relatively movable knife set for cutting parallel to the plane of the fabric, and said apparatus also comprising means for moving air and limiting such movement to a course through said fabric and adjacent and toward said knives,.

whereby such fiber ends may be directed outward from said surface into position to be cut by said knives, substantially as described.

6. An apparatus adapted to relatively traverse the surface of a sheet form fiber fabric and comprising surface fiber end cut ting means located opposite and near said surface and outside of the plane of said surface and consisting of a relatively stationary knife and a relatively movable knife for cutting parallel to the plane of the fabric, and said apparatus also comprising means for moving air by exhaustion and limifing such movement to a course through said fabric and adjacent and toward said knives, whereby surface fiber ends may be directed outward from said surface into position to be cut off by said knife, substantially as described.

7. An apparatus adapted to relatively traverse a sheet form fiber fabric and com prising surface fiber end cu ting means located opposite and near said fabric and outside the plane of said fabric and consisting of a relatively stationary knife and a rotary cutting member for cutting parallel to said fabric, and said apparatus also comprising means for moving air and limiting such movement to a course through said fabric and adjacent and toward said cutting mechanism, whereby fiber endsmay be directed outward from said surface into position to be removed by said cutting means, substantially as described.

8. An apparatus having a path for a sheet form body and comprising fiber end rcmoving means outside of and beside said path and operating parallel to said path and means for moving air and limiting such movement to a course through said path opposite and toward said fiber end removing means, whereby fiber ends on a sheet form fiber fabric body in said path may be directed outward into position to be operated upon by the fiber end removing means, substantially as described. 0

9. An apparatus having a path for a sheet form body and comprising fiber end cutting means iocated outside of and beside said path and operating parallel to said path and means for moving air and limiting such movement to a course through said path opposite and toward said fiber end cutting means, whereby fiber ends on a sheetform fiber fabric body in said path may be directed outward into position to be operated upon by the fiber end cutting means, substantially as described.

In testimony whereof I have signed my name, in presence of two witnesses, this fifth day of September, in the year one thousand nine hundred and eleven.

MARVIN S. WEAVER.

Witnessesi J. E. Cnoncn, S. A. Bowman.