US1152418A - Mattress-sewing machine. - Google Patents

Description

. W. A. KELSEY & J. G. STONEBACK. MATTRESS SEWING MACHINE. APPLICATION FILED|0CT.8. 1913 Patented Sept. 7, 1915.

4 SHEETS-SHEET a. a TONEBAC'K 'ATTORNE Y.

W. KELSEY & J. G. STONEBACK.

MATTRESS SEWING MACHINE.

' 7 APPLICATION FILED OCT-3.1913. 1,152,41. v PatentedSept. 7, 1915.

4 SHEETS-SHEET 2.

IV] TNESSES:

v 1 INVEN IORS p WILL/1R0 4. KELSEY I JOH/VG. STONE/5540A QMZW 1' gr A TTORN E Y.

W. A. KELSEY & J. G. STONEB'ACK.

MATTRESS 'SEWING MACHINE.

m A N- H & m J v w T ILIIIF m WW WW 9% Fe b \w .l: 1. m mm am om m m m. W \mw m km.

WITNESSES:

INVEN TOR S Y K m E S L R EN .0 Km n sfl d L Mw Wu W. A. KELSEY & J. G. STONEBACK MATTRESS SEWING MACHINE, 1,15,41

WILLARD A. KELSEY AND JOHN G. STONEBAGK, OF 'TOPEKA, KANSAS.

MATTRESS-SEWING MACHINE.

Specification of Letters Patent.

Patented Sept. 7, 1915.

Application filed October 8, 1918. Serial No. 794,079.

To all whom it may concern:

Be it known that we, WILLARD A. KELSEY and JOHN G. SToNnBAoK, citizens of the United States, residing at Topeka, in the county of Shawnee and State of Kansas, have invented certain new and useful Improvements in Mattress-Sewing Machines, of which the following is a specification.

This invention relates to machines for forming and sewing rolls on the corners of mattresses.

The object of the invention is to provide a combined roll-forming and sewing machine, of simple construction and reliable operation.

Mattresses of the kind intended to be operated upon by this machine are usually stuffed with cotton. The nature of the rolls referred to is understood by those skilled in the art. j

In order that the invention may be fully understood, reference will now be made to the accompanying drawings, in which:

Figure 1 is a side elevation of a machine embodying our invention. Fig. 2 is a plan view. Fig. 3 is an elevation of the opposite side to that shown in Fig. 1. Fig. 4 is a. vertical section on a line IV-IV of Fig. 1. Fig. 5 is a detail view of the packing needle, partly in vertical section. Fig. 6 is a detail View sectioned on a line VIVI of Fig. 5. Fig. 7 is a detail view sectioned on a line VIIVII of Fig. 5. F 'rg. 8 is a cross section of a stitched mattress-roll.

The frame of the machine comprises a base 1, a vertical niattressguide 2, an overhanging mattress- guide 3,21. central web 4, and a main journal-frame 5. The mattressguide 3 is rectangular in outline and lies transversely of the main frame. 3 are stiffening. ribs thereon. Fixedly mounted on the part 3 is a segmental plate 6, having a segmental, inclined rib 6 thereon.

7 is the sewing needle, which reciprocates in a straight path and through small openings 3, 2 in plates 3 and 2, respectively.

-8 is the packing needle, which passes through slots 2", 3", in plates 2, 3, respectively, and reciprocates in an irregular path in a vertical plane. Both needles traverse in upwardly and outwardly inclined paths which intersect the mattress when the latter is held in position in the angle formed by the guides 2, 3. The packing needle 8 is mounted in a needle bar 9 which is pivotally connected to a link 10 by a pin 12.

Said link is pivotally connected to a crosshead 13 by a pin 14. Cross-head 13 is guided in a straight path by slotted ways 15, 16, one of which is on web 4, the other being a detachable plate 17, secured by screws 18. Mounted on opposite sides of needle-bar '9 aretwo guide- rollers 19, 20, set at different points longitudinally. Roller 19 .travels in an inclined slot 21 which communicates with straight slot 15. The opposite roller 20 travels in a straight slot 22 which is an extension of the crosshead way 16.

Rigidly secured to the top of crosshead 13 is an arm 23, which is connected by a pin 24 to a pitman 25, which is driven by a pm 26 and crank 27. Said crank is keyed on a vertical shaft 28, held in bearings 29,

30. Shaft 28 carries a bevel gear 31 which is driven by a bevel gear 32 on a shaft 33, on which is a pulley 34 to receive a driving belt. When crank 27 is at one end of its throw, the needle 8 will be in fullyextended position, as shown. Motion of said crank will cause roller 19 to rise in its guide slot 21, thereby depressing the needle 8 to substantially horizontal position before it is withdrawn. Further motion retracts the needle in a horizontal line. The following outward stroke of the crank throws the needle outward. About the time the roller 19 enters the inclined slot 21, the other roller 20 strikes the end of its slot. LinklO continues to advance, thereby forcing the inner end of the needle-bar downward and outward as roller 19 travels in slot 21. Thus the needle 8 is forced upward as it passes into the corner of the mattress.

The sewing needle, 7, is mounted in a needlebar 35 which reciprocates in a T-slot 36 cast in the frame web 4. Needle-bar 35 is actuated by a pitman 37, connected thereto by a screw 38. Pitman'37 is pivoted by a pin 39 to a longitudinal slide-bar 40, mounted between guides 41 having lugs 42 fastened to the base 1. Slide-bar 40 is provided with a rigid arm 43, which is pivotally connected by a link 44 to a stud 45 on a. crank 46, keyed on the vertical shaft 28. The path of the sewing needle is slightly below, and at one side of, that of the packing needle. Said needles move approximately in unison, that is, in the same directions at the same times. The sewing needle is supplied with thread from a spool 47. The thread 48 passes through a tension device 49, thence through an eye in a take-up arm 50, thence through the needles eye 51. Said take-up arm is oscillated through a train of gears 52, 53, 54 by a rock-arm 55. Arm 55 has a longitudinal slot 56 into which projects a stud 57 carried by the needle-bar 35.

Referring to Fig. 2, 58 is the shuttle-carrier, which is fastened with screws 59 to an oscillating arm 60, fulcrumed on a stud 61 on a fixed bracket 62. The outer end of arm 60 rests upon plate 6. Spaced above said plate is an arcuate upper guide 63 secured-to the former by screws 64. The

.curve of the plate 6 and its rib 6, is conis a longitudinal slot 68. A connection bolt 69 is firmly secured at a desired point in slot 68 by a nut 70. Said bolt passes slidably through slot 66 of arm 65 and carries a nut 71 which bears on a shoulder of the bolt but not on said arm. By this mechanism the arm 60-65 will be, oscillated by the rotation of the shaft 28, and the stroke of said arm will be adjustable by adjusting the connecting bolt 69 radially in the crank 67.

Operation: The operator turns the drivebelt sufiiciently to retract both the needles 7 and 8, to leave the angular space clear for amattress corner. He then inserts one of the horizontal upper corners of the mattress in the angle formed by the guides 2, 3, and

starts the machine. The packing needle 8 penetrates the corner of the mattress, first in a nearly horizontal direction, which changes to an upward, prying motion as it advances. This motion compresses a portion of the filling into the corner of the covering fabric.

Simultaneously the-other needle 7 carries the thread through the mattress as at 72, Fig. 8, leaving a loop projecting through the needle opening when the needle recedes. As soon as the needle recedes the shuttle is carried through the loop by the carrier 58, and the loop is closed by the take-up arm 50. The shuttle is then carried back to initial position. At the moment when both needles are fully retracted, the operator advances the mattress by the length ofa stitch, and the above describ d operations are repeated.

A support and feeding device may be employed for feeding the mattresses.

Having thus described our invention, what we claim and desire to secure by Letters Patent is:

1. In. a machine of the kind described, :1

mattress-guide forming a right-angled recess, a reciprocating packing-needle traveling partly across said recess, means to cause said needle to move toward the apex of said angle as it advances, means to reciprocate said needle, and sewing means adapted to form a row of stitches through a corner of a mattress.

3. In a machine of the kind described, a needle-bar, provided with projecting rollers, guides having grooves for guiding said rollers, means for reciprocating said needle-bar, said grooves being adapted to shift the angle of the needle-bar as said bar inserts and withdraws the needle, and a packing-needle.

4. In a machine of the kind described, a crosshead, a needle-bar, a link connecting said parts, rollers projecting from the needle-bar, roller-guides adapted to shift the angle .of the needle-bar as said bar inserts and withdraws the needle, a packing-needle, and means for reciprocating the crosshead.

5. In a machine of the kind described, a. needle-bar 9, a packing needle 8, rollers 19, 20 on said bar, guiding slots 21, 15, 22 for said rollers, a link 10, and means for reciprocating said link, substantially as described.

6. In a machine of the kind described, vertical and horizontal mattress-guides forming a right-angled recess, a needle-bar 9, a packing needle 8 having a path partly across said recess through one of said guides,

. rollers 19, 20 on said needle-bar, guiding slots 15, 21, 22 for said rollers, a link 10, and means for reciprocating said link, substantially as described.

7. In a machine of the kind described, a needle-bar, apacking-needle carried thereby, two rollers projecting fi om opposite sides of said needle-bar, a driving link connected with said needle-bar, two rollerguides for said respective rollers, one of said guides being straight from end to end, the other having an inclined offset in its outer end, the roller traveling in the straight groove serving as a pivot upon which the needle-bar is turned in performing its function.

8. In a machine of the kind described, a guide for a horizontal corner of a mattress, a packing needle adjacent said guide, means for forcing said packing needle into the mattress in one direction and then changing its course to stuff a portion of the filling into one corner of the mattress, and means for sewing through the mattress between its body portion and the compressed portion of the filling.

9. In a machine of the kind described, a mattress guide, a packing needle adjacent said guide, means for forcing said packing needle into the mattress in one direction and and then changing its course to stuff a portion of the filling into one corner of the mattress, a reciprocating sewing needle arrangedto operate close to the packing needle, a shuttle carrier, and means for actuating said shuttle carrier.

10. In a machine of the kind described, a

mattress guide, a packing. needle adjacent said guide, a sewing needle adjacent said packing needle, a shuttle carrier to coaot means for actuating said needles and the shuttle carrier from said shaft, and means for changing the course of the packing needle after enterin the mattress so that it will stufl a portion 0 the filling into one corner of said mattress.

In testimony whereof we aifix ,our signatures, in the presence of two Witnesses.

WILLARD A. KELSEY. JOHN G. STONEBAOK. Witnesses:

G. P. BENSON, W. H. KIESALT.

Images