US3532258A

US3532258A - Hosiery article seam flattening device and method

Info

Publication number: US3532258A
Application number: US827453*A
Authority: US
Inventors: Joseph E Kienel
Original assignee: JOSEPH E KIENEL
Current assignee: JOSEPH E KIENEL
Priority date: 1969-04-24
Filing date: 1969-04-24
Publication date: 1970-10-06
Anticipated expiration: 1987-10-06

Description

HOSIERY ARTICLE SEAM FLATTENING DEVICE AND METHOD Filed April 24, 1969 J. E. KIENEL Oct. 6, 1970 2 Sheets-Sheet 1 INVENTOR.

JOSEPH E. VuENE-L.

W166, 911%; M 9 gym ATTORNEYS Oct. 6, 1970 J. E. KIENEL 3,532,258

HOSIERY ARTICLE SEAM FLATTENING DEVICE AND METHOD Filed April 24, 1969 2 Sheets-Sheet 2 INVENTOR. Jest-PH E. KHENEL.

BYMM 9 2K146 ATTORNEYS 3,532,258 HOSIERY ARTICLE SEAM FLATTENING DEVICE AND METHOD ABSTRACT OF THE DISCLOSURE A device and method for flattening a seam within the toe portion of a hosiery article wherein the hosiery article is drawn onto an elongated tubular member open at one end with the toe portion thereof covering the open end of the tubular member, the hosiery article is clamped against the tubular member in spaced relation to the toe portion by clamping means operatively associated with the open end of the tubular member, and the toe portion of the hosiery article is stretched by stretching means movable axially of the tubular member and relative to the clamping means to flatten the seam therein.

This invention relates to a hosiery article seam flattening device and method and more particularly to an improved hosiery article seam flattening device and method for flattening a seam in the toe portion of a hosiery article.

Hosiery articles and in particular, mens and childrens socks are knitted with an opening across the top of the toe portion which must be subsequently closed. Typically, the opening is closed by everting the hosiery article to an in-side out condition and sewing opposite edges of the opening together utilizing overedge stitching. However, such overedge stitching leaves a raised, uneven seam across the toe portion which must be flattened to present an attractive appearance and to be comfortably worn.

The use of the overedge stitching makes it possible to flatten the seam by stretching the hosiery article perpendicular to the seam a suflicient amount such that the seam will remain flattened after stretching. Conventional- 1y, this seam has been flattened by manually stretching the toe portion of the hosiery article perpendicular to the seam. This manner of stretching has proven to be unsatisfactory for several reasons, such as, the requirement of manual labor which adds to the cost of production and the inability to manually stretch the seam uniformly to present an attractive appearance.

Furthermore, since the opening across the toe is closed while the hosiery article is in an in-side out condition, it is necessary that the hosiery article be everted to a right-side out condition subsequent to the toe seam flattening operation which requires additional manual labor.

With the aforementioned in mind, it is an object of this invention to provide a device and method for flattening a seam within the toe portion of a hosiery article with a minimum amount of manual labor on the part of the operator.

Another object of this invention is the provision of a device and method for flattening a seam within the toe portion of a hosiery article by stretching wherein only the toe portion of the hosiery article is stretched and wherein the seam is flattened substantially uniformly.

A still further object of this invention is the provision of a device and method for flattening a seam within the toe portion of a hosiery article and wherein the hosiery article is everted to a right-side out condition without additional labor on the part of the operator.

And still a further object of this invention is the pro vision of a device including a plurality of elongated tubular members adapted to successively receive hosiery arnited States Patent 3,532,258 Patented Oct. 6, 1970 ticles thereon and which are indexed through a sequence of positions wherein a plurality of sequential operations are carried out on the hosiery articles including flattening of seams within the toe portions thereof and wherein the plurality of operations are carried out simultaneously on diflerent hosiery articles, thus, increasing the rate at which these operations could otherwise be carried out.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds, when taken in connection with the accompanying drawings, in which:

FIG. 1 is a perspective view of a toe seam flattening device constructed in accordance with this invention;

FIG. 2 is an enlarged sectional view taken substantially along the line 22 of FIG. 1 showing means for indexing the plurality of elongated tubular members of FIG. 1;

FIG. 3 is a partially schematic and partially sectional view of the stretching means shown in the right hand portion of FIG. 1;

FIG. 4 is an enlarged sectional view showing the clutch means used in indexing the elongated tubular members;

FIG. 5 is an enlarged view with parts in section and portions broken away showing a toe seam flattening device of this invention with the clamping means and means for stretching the hosiery article in a normally retracted position spaced outwardly of the tubular members;

FIGS. 68 are views similar to FIG. 5 showing the clamping means and means for stretching the hosiery article in different, sequential operative positions; and

FIG. 9 is a sectional view taken substantially along the line 9-9 of FIG. 8.

Referring to the drawings wherein like reference characters are used where possible to indicate like parts, there is generally shown in FIG. 1 one illustrative embodiment of a toe seam flattening device of the present invention mounted upon a substantially horizontal work table 10-.

Extending upwardly from the work table 10 is a support member 11 upon which is mounted a turret drive shaft 12 for rotation about a substantially horizontal axis. A turret 13 is mounted on one end of the shaft 12 for rotation therewith about the horizontal axis, and has four aperture symmetrically disposed therein and equidistantly spaced radially outwardly from the horizontal axis about which the turret 13 rotates. The apertures have

screens

14, 15, 16 and 17 covering the same to prevent the passage of a hosiery article therethrough.

A plurality of elongated tubular, preferably cylindrical members 20, 21, 22, 23 are mounted at one end on and extend outwardly from one side of turret 13 in substantially parallel, spaced apart relation and have openings therethrough which are in registration and communication with the apertures in turret 13. The tubular members 20-23 are of substantially the same length and are open at their free ends for receiving hosiery articles thereon with the toe portions thereof covering the open ends.

Means is provided for rotating turret 13 about its horizontal axis to successively index tubular members 29-23 to a hosiery donning position, a seam flattening position, a hosiery article everting position, and a hosiery article discharge position (which positions are respectively occupied by tubular members 20, 21, 22 and 23 in FIG. 1). The turret rotating means includes a drive motor 30 which is connected through a gear reduction means 31 to a drive disc or eccentric 32. Motor 30, gear reduction means 31 and drive disc 32 are suitably supported on table 10 as shown in FIG. 2. Drive disc 32 has a drive arm 33 pivotally connected thereto at a point spaced radially outwardly from the axis of rotation of disc 32 so that rotation of disc 32 will result in reciprocation of drive arm 33. The other end of drive arm 33 is pivotally connected to a crank arm 34 which is part of a one-way clutch 3 35 drivingly connected to turret drive shaft 12 (FIGS. 2 and 4). The one-way clutch 35 is of conventional construction and will be but briefly described to facilitate an understanding of how it functions in co-ordination with the rest of the device of the present invention. The clutch 35 comprises a hub 36 to which crank cam 34 is connected and which is concentrically mounted on a sleeve 37 drivingly mounted on the turret drive shaft 12. Spring pressed driving balls 38 are disposed bet-ween the hub and sleeve and permit free relative movement between hub 36 and sleeve 37 upon movement of crank arm 34 in one direction but drivingly connected hub 36 to sleeve 37 and hence shaft 12 upon movement of crank arm 34 in the opposite direction. The distance from the axis of drive disc 32 that the drive arm 33 is connected to the drive disc and the length of crank arm 34 should be such that upon each revolution of drive disc 32 the turret will be rotated one-quarter of a revolution to index the tubular members 20-23 to the next successive position.

Suitable means is provided for maintaining turret 13 in position during the inactive stroke of drive arm 33 and crank arm 34 and this means includes four recesses 40 equally spaced about the periphery of turret 13 and a holding device 41 including a roller 41a riding against the periphery of turret 13 and receivable in one of the recesses 40 to hold the tubular members 20-23 in their various positions.

Means is provided adjacent the seam flattening position of tubular members 29-23 for flattening seams within the toe portions of hosiery articles received thereon. This seam flattening means includes means for clamping the hosiery articles against the tubular members 20-23, preferably in spaced relation to the toe portion, and stretching means movable axially of the tubular members when they occupy the seam flattening position and adapted to engage the toe portions of the clamped hosiery articles for stretching the toe portions a suflicient amount to flatten the seams therein.

The clamping and stretching means are shown in FIGS. 3, and -9, and the stretching means comprises an elongated cylindrical stretching member 50 axially aligned with tubular members 20-23 when they occupy the seam flattening position and having a substantially semi-spherical hosiery engaging portion 51 mounted on the end thereof adjacent the open ends of the tubular members 20-23. The other end of stretching member 50 is connected to a piston 52 of an air cylinder 53.

Air cylinder 53 has its opposite ends connected to a suitable air supply 54 through a suitable valve 55 which controls the admission of air to cylinder 53. As illustrated, valve 55 is operated by a solenoid 56 which is controlled by a switch 57. Switch 57 is preferably of the normally open type and is actuated by a cam 58 carried by drive disc 32 to operate the valve, and hence the stretching means, in timed relation to the indexing of the tubular members 20-23. Normally, valve 55 occupies the position shown in FIG. 3 and the stretching member 50 is held in a retracted position (shown in FIG. 5) outwardly of the open end of the tubular member occupying the seam flattening position. Upon closure of switch 57 by cam 58, valve 55 supplies air to the other end of cylinder 53 to move stretching member 50 axially of the tubular member and the hosiery engaging portion 51 inwardly into 1 the tubular member occupying the seam flattening position.

As illustrated, the clamping means comprises a clamping member 60 carried by the stretching member 50 for movement there-with. Clamping member 60 includes a tubular sleeve 61 (FIG. 5) slidably mounted on stretching member 50 and having an opening therethrough having a rearward portion substantially the same diameter as the diameter of stretching member 50 and a forward portion of larger diameter. A retaining ring 62 is carried by stretching member 50 in predetermined spaced relation to the hosiery engaging portion 51 and serves to define w the forward position of the clamping member 60. Clamping member 60 also includes a frusto-conical collar 63 of elastomeric material and carried by the rear portion of sleeve 61. Collar 63 is of a size so that a portion thereof is receivable within the open free ends of the tubular members 20-23 while the remainder thereof clamps the hosiery articles against the free ends of the tubular members.

A biasing spring 64 surrounds stretching member rearwardly of clamping member and abuts the clamping member at one end and a retaining collar 65 mounted on stretching member 50 at its other end. Spring 64 normally biases clamping member 60 against retaining ring 62, but permits stretching member 50 to move relative to the clamping member 60 when movement of the clamping member is restrained by the open ends of the tubular members. Accordingly, the cylinder 53 first moves stretching member 50 to a first extended position (shown in FIG. 6) during which hosiery engaging portion 51 engages the portion of a hosiery article on the tubular member occupying the seam flattening position and moves the toe portion inwardly of the tubular member for a predetermined distance while withdrawing a predetermined portion of the hosiery article from the tubular member. When the clamping member 60 clamps the hosiery article against the end of the tubular member, further movement of the clamping member 60 is prevented, but cylinder 53 continues to move stretching member 50 to a second extended position (shown in FIG. 7) with relative movement between stretching member 50 and clamping member 60 being permitted by compression of spring 64. During movement to the second extended position, hosiery engaging portion 51 stretches the toe portion of the hosiery article a suflicient amount to flatten the seam therein. Then, the cylinder 53 retracts stretching member 50 and clamping member 60 to the retracted position (shown in FIG. 8) upon movement of cam 58 out of engagement with switch 57.

Means is provided adjacent the hosiery article everting position of the tubular members 20-23 and operatively communicates with the interior of the tubular member occupying the hosiery article everting position for creating a pressure differential within the tubular member to draw the hosiery article inwardly of the tubular member. Preferably, this means includes a suction source (not shown) driven by motor (FIG. 1) and connected to a duct 71 which terminates in an open free end closely adjacent turret 13 in communication with the apertures therethrough. The free end of duct 71 is mounted by a suitable collar 72 on a supporting standard 73. To assist the suction means in drawing the hosiery articles from the outside of tubular members 20-23, there is provided three stripper wheels 74 mounted for rotation and driven in a counter clockwise direction through a conventional chain and sprocket arrangement 75 from a motor 76. Wheels 74 engage the hosiery article on the tubular member occupying the hosiery article everting position to strip or move the hosiery article toward the free end of the tubular member while the suction means draws the hosiery article inwardly of the tubular member, thus everting the hosiery article to a right-side out condition. The screens 14-17 in the ends of the tubular members 20-23 adjacent turret 13 entrap and prevent the hosiery articles from passing into duct 71.

Means is provided adjacent the hosiery article discharge position of said tubular members, for discharging hosiery articles from the tubular members when they occupy the hosiery article discharge position. Preferably, this discharge means comprises a duct connected at one end to a blower (not shown), such as the exhaust side of the suction means driven by motor 70, and terminating at its other end in an open free end closely adjacent turret 13 and communicating with the apertures therethrough. This free end is supported by a collar 81 on standard 73. Accordingly, hosiery articles entrapped within the tubular members 2023 will be blown out the open ends thereof.

Disposed outwardly of and in receiving communication with the open ends of the tubular members when they occupy the hosiery article discharge position in a hosiery article collection means 82 for receiving hosiery articles blown from the tubular members 20-23 and for collecting the same in a suitable collection chamber (not shown), such as a bag or the like from which hosiery articles may be subsequently removed.

The operation of the device of the present invention will be apparent to a large extent from the foregoing description and therefore will only be briefly hereinafter described. As seen in FIG. 1, tubular member 20 is in the hosiery donning position and a hosiery article has been drawn thereon. This is the only manual operation required in carrying out the method of the present invention and in using the device of the present invention although other manual operations may be utilized instead of the mechanical operations of the device without departing from the present invention. It should also be understood that while one complete cycle of operation will be described relative to tubular member 20, the same operations will be successively carried out with respect to the other tubular members.

and second extended positions and the clamping member 60 is moved against the end of tubular member 20. The hosiery article is thusly clamped against tubular member 20 and the toe portion is stretched to flatten the seam therein,

The stretching and clamping members are then retracted and tubular member 20 is indexed to the hosiery article everting position and the interior thereof is brought into communication :with duct 71. Suction is applied to tubular member 20 and the hosiery article thereon is drawn inwardly of the tubular member thereby while the stripper wheels 74 assist in stripping the hosiery article from the outside of tubular member 20.

Tubular member 20 is then indexed to the hosiery .article discharge position in communication with duct 80. The hosiery article in tubular member 20 is blown 'outwardly through the open free end thereof and is collected in collection means 82. Tubular member 20 is then indexed to the hosiery article donning position for the start of another cycle.

In the drawings and specification, there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation.

What is claimed is: 1. A device for flattening a seam in the toe portion of a hosiery article comprising an elongated tubular member open at one end and adapted to receive a hosiery article thereon with the toe portion thereof covering the open end of said tubular member,

clamping means operatively associated with the open end of said tubular member for clamping a portion of the hosiery article against said tubular member in spaced relation to the toe portion thereof, and

stretching means movable axially of said tubular member and relative to said clamping means and adapted to engage the toe portion of the clamped hosiery article for stretching the toe portion of the hosiery article axially of said tubular member a suflicient amount to flatten the seam in the toe portion.

2. The device of claim 1 wherein said clamping means is operable in timed relation to said stretching means after said stretching means has moved a predetermined distance axially of said form to withdraw a predetermined portion of the hosiery article from said tubular member.

3. The device of claim 1 including means mounting said tubular member for movement between a hosiery article donning position and a seam flattening position spaced from the hosiery article donning position and wherein the tubular member is in operative association with said clamping means and stretching means.

4.-The device of claim 1 including means operatively associated with said tubular member for inducing a,

pressure differential within said tubular member to evert the hosiery article after flattening of the seam therein by drawing the hosiery article inwardly of said tubular member.

5. A device for flattening a seam within the toe portion of a hosiery article comprising an elongated tubular member open at one end and adapted to receive a hosiery article thereon with the toe portion thereof covering the open end of said tubular member,

stretching means normally disposed in a retraced position spaced outwardly of the open end of said tubular member and movable axially of said tubular member between this normally retraced position and an extended position at least partially within said tubular member for engaging and moving the toe portion of the hosiery article inwardly of said tubular member during movement of said stretching means for stretching the toe portion of the hosiery article on said tubular member inwardly of the tubular member a sufficient amount to flatten the seam in the toe portion of the hosiery article, and

means connected to said stretching means for moving said stretching means between said retracted and extended positions.

6. The device of claim 5 including clamping means operatively associated with said tubular member for clamping a portion of the hosiery article against said tubular member in spaced relation to the toe portion during stretching thereof.

7. The device of claim 6 wherein said stretching means comprises a stretching member normally disposed in a retracted position spaced outwardly of the open end of said tubular member and movable axially of said tubular member from this normally retracted position to a first extended position within said tubular member and from this first extended position to a second extended position further within said tubular member and adapted to engage and move the toe portion of the hosiery article inwardly of said tubular member during movement of said stretching member, and wherein said clamping means comprises a clamping member carried by said stretching member and movable therewith from said retracted position to said first extended position to clamp the hosiery article against the open end of said tubular member and including means resiliently connecting said clamping member and stretching member, said means resiliently collapsing during extension of said stretching member from said first extended position to said second extended position to permit movement of said stretching member relative to said clamping member and maintain said clamping member in clamping engagement :with the open end of said tubular member.

8. A device for flattening a seam in the toe portion of a hosiery article comprising a plurality of elongated tubular members open at one end and adapted to receive hosiery articles thereon with the toe portions thereof covering the open ends thereof.

means mounting said tubular members in spaced apart,

substantially parallel relation with their open ends extending in the same direction and for successive movement to a hosiery article donning position wherein said tubular members are adapted to have hosiery articles drawn thereon and a seam flattening position, clamping means disposed adjacent the seam flattening position of said tubular members for clamping portions of the hosiery articles against said tubular members when said tubular members occupy the seam flattening position, and

stretching means also disposed adjacent said seam flattening position and movable axially of said tubular members when said tubular members occupy said seam flattening position for stretching the toe portion of the hosiery articles axially of said tubular members a suflicient amount to flatten the seams therein.

9. The device of claim 8 wherein said means mounting said tubular members also mounts said tubular members for successive movement from the seam flattening position to a hosiery article everting position, and including means disposed adjacent said hosiery article everting position for everting hosiery articles after flattening of the seams therein by inducing a pressure diflerential within the tubular members to draw the hosiery articles inwardly of said tubular members when said tubular members occupy the hosiery article everting position.

10. The device of claim 9 wherein said means mounting said tubular members also mounts said tubular members for movement from the hosiery article everting position to a hosiery article discharging position, and including means disposed adjacent said hosiery article discharging position for discharging the everted hosiery articles from said tubular members through the open ends thereof by inducing an opposite pressure differential within said tubular members when said tubular members occupy the hosiery article discharging position.

11. The device of claim 10 including means for successively indexing said tubular members between their various positions.

12. The device of claim 11 including means for actuating said clamping means and stretching means in timed relation to the indexing of said tubular members.

13. A device for flattening a scam in the toe portion of a hosiery article comprising a turret mounted for rotation about a generally horizontal axis,

four elongated tubular members mounted at one end on said rotatable turret in radially spaced relation to the horizontal axis of said turret and extending generally parallel to said axis and to each other and terminating in free open ends, said tubular members being adapted to receive hosiery articles drawn there onto,

means for rotating said turret about said horizontal axis to index said tubular members successively to a hosiery donning position, a seam flattening position, a hosiery article everting position, and a hosiery article discharging position,

clamping means disposed adjacent the seam flattening position of said tubular members for clamping portions of the hosiery articles against said tubular members when said tubular members occupy the seam flattening position,

stretching means also disposed adjacent said seam flattening position and movable axially of said tubular members when said tubular members occupy the seam flattening position for stretching the toe portion of the clamped hosiery article axially of said tubular members a sufiicient amount to flatten the seams therein,

suction means disposed adjacent said hosiery article everting position and operatively communicating with the interior of said tubular members when they occupy said hosiery article everting position for everting the hosiery articles having the flattened seams therein by drawing the hosiery articles inwardly of said tubular members,

means disposed adjacent the hosiery article everting position of said tubular members and adapted to engage the hosiery articles on said tubular members for moving the hosiery articles on the outside of the tubular members toward the open free ends of said tubular members to assist said suction means in withdrawing the hosiery articles from the outside of the tubular members and drawing the same inwardly of said tubular members,

blowing means disposed adjacent the hosiery article discharging position of said tubular members and operatively communicating with the interior of said tubular members when they occupy said hosiery article discharging position for blowing the everted hosiery articles from said tubular members through the open end thereof to discharge the hosiery articles therefrom, and

hosiery article collection means disposed adjacent the hosiery article discharge position of said tubular members and aligned with the open free ends thereof for receiving hosiery articles discharged from said tubular members to collect the discharged hosiery articles.

14. A method for flattening a seam within the toe portion of a hosiery article which comprises drawing a hosiery article onto an elongated tubular member open at one end with the toe portion thereof covering the open end of the tubular member, clamping the hosiery article against the tubular member in spaced relation to the toe portion, and stretching the toe portion of the clamped hosiery article inwardly of the tubular member a sufficient amount to flatten the seam therein.

15. The method of claim 14 which includes moving the toe portion of the hosiery article inwardly of the tubular member prior to clamping the hosiery article against the tubular member.

16. The method of claim 15 which includes everting the hosiery article after flattening of the seam therein by inducing a pressure differential within the tubular member to draw the hosiery article inwardly of the tubular member.

17. The method of claim 14 which includes inducing a pressure differential within the tubular member to draw the hosiery article into the tubular member and thereafter discharging the everted hosiery article from the tubular member through the open end thereof by inducing an opposite pressure difierential within the tubular member.

18. A method of flattening a seam within the toe portion of a hosier article utilizing at least one elongated tubular member open at one end and movable between a hosiery article donning position and a seam flattening position, said method comprising drawing a hosiery article onto the tubular member with the toe portion thereof covering the open end of the tubular member while the tubular member is in the hosiery article donning position,

moving the tubular member with the hosiery article thereon from the hosiery article donning position to the seam flattening position,

clamping the hosiery article against the tubular member while the tubular member is in the seam flattening position, and

stretching the toe portion of the clamped hosiery article axially of the tubular member a sufficient amount to flatten the seam therein.

19. The method of claim 18 wherein said tubular member is also movable from said seam flattening position to a hosiery article everting position and including moving the tubular member from the seam flattening position to the hosiery article everting position and everting the hosiery article after flattening of the seam therein by inducing a pressure differential within the tubular member to draw the hosiery article inwardly of the tubular member while said tubular member is in the hosiery article everting position.

20. The method of claim 19 wherein the tubular member is also movable from the hosiery article everting position to a hosiery article discharging position and including moving the tubular member from the hosiery article everting position to the hosiery article discharging position and discharging the everted hosiery article from the tubular member through the open end thereof by inducing an opposite pressure differential within the tubular member while said tubular member is in the hosiery article discharging position.

21. A method for flattening a seam within the toe portion of a hosiery article utilizing a plurality of elongated tubular members open at one end and mounted in spaced apart, substantially parallel relation with their open ends extending in the same direction and successively movable to a hosiery article donning position, a seam flattening position, and a hosiery article everting position, said method comprising successively moving the tubular members to the hosiery article donning position,

successively drawing hosiery articles onto the tubular members with the toe portions thereof covering the open ends of the tubular members while the tubular members are in the hosiery article donning position, successively moving the tubular members with the hosiery articles thereon from the hosiery article donning position to the seam flattening position, clamping the hosiery articles against the tubular members in spaced relation to the toe portions of the hosiery articles while the tubular members are in the seam flattening position,

stretching the toe portions of the clamped hosiery articles inwardly of the tubular members a suflicient amount to flatten the seams therein,

successively moving the tubular members to the hosiery article everting position, and

everting the hosiery articles by inducing a pressure differential within the tubular members to drawn the hosiery articles inwardly of the tubular members while the tubular members are in the hosiery article everting position.

References Cited UNITED STATES PATENTS 2,899,116 8/1959 Long et al 223-43 3,126,134 3/1964 McAnally 223-43 3,131,839 5/1964 Norman et al 223-43 3,197,094 7/1965 Fowler 223-77 775,992 11/ 1904 Shallenberger 223-43 3,429,618 2/1969 Sparso et al 223-43 X JORDAN FRANKLIN, Primary Examiner G. V. LARKIN, Assistant Examiner US. Cl. X.R. 223-77 Flo-1050 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRLCTION Patent No. 258 Dated October 0 Inventor) Joseph E. Klenel It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column -2, line 58, changethe numeral "29" to --2o--.

Column 3, line 12, change "connected" to "connectsllne 29, change the numeral "29" to --20--.

Column 4, line 20, after "the" (first occurrence) and before "portion", insert --toe--.

Column 5, line 5, change "in" to "dB-' Coldinn 6, line 23, change "retraced'" to --retracted--; line 26, change "retraced" to --retracted--.

Column 10, line 9, change "drawn" to --draw--.

SIGNED AND REALED BESS IQD