US1236599A - Overseaming-machine. - Google Patents

Description

L. ONDERDONK.

OVERSEAMING MACHINE. APPLICATION FILED on. 28. ms.

Patented Aug. 14, 191?.

G SHEETS-SHEET I.

L. ONDERDONK.

OVERSEAMING MACHINE.

APPLICATION FILED ocr. 28. 1913.

fitter/mu S Patented Aug. '14, 1917.

6 SHEETS-SHEET 2- L. ONDERDONK.

OVERSEAMING MACHINE.

APPLICATION FILED OCT. 28. 1913.

Pammd Aug. 14, 1917.

6 SHEETS-SHEET 3.

L. ONDERDONK.

OVERSEAMING MACHINE. APPL ICAT|0N FIL'ED OCT. 28. m s.

Patented Aug. 14, 19170 6 SHEETS-SHEET 4.

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L. ONDERDONK.

OVERSEAMING MACHINE.

APPLICATION FILED OCT. 28. i913.

Patented Aug. 14, 1917 6 SHEETS-SHEET 5.

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L. ONDERDONK.

DVERSEAMING MACHINE. APPLICATION FILED OCT. 28. i9l3-- ara re.

LANSING ONDERDONK, or NEW YORK, N. Y., ASSIGNOR T0 UNION SPECIAL MACHINE- COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

OVERSEAMING-MACHINE.

Application filed October 28, 1913.

more particularly to what is known in the art as a cup feed machine.

An object of the invention is to provide a machine of the above type with devices for positively moving all of the elements of the stitch forming mechanism and also the feeding mechanism whereby the machine may be run at a high speed with little vibration in the operating parts. i

A further object of the invention is to provide a machine of the above character wherein the looper is given its various movements by three independent eccentrics each of which is positively and directly connected to the looper rod, or the support therefor,

whereby each eccentric separately and positively imparts its particular movement to the looper.

These and other objects will in part be obvious and will in part be hereinafter more fully disclosed.

In the drawings which show by way of illustration one embodiment of the invention,

Figure 1 is a plan view of a machine embodying my improvements, certain parts being removed to expose the operating mechanism to view;

- Fig. 2 is a horizontal sectional view slightly above the main operating shaft;

Fig. 3 is a Side elevation of the machine;

Fig. 4 is a vertical sectional view showing the devices for operating the needle and looper in side elevation;

Fig. 5 is a bottom plan view of the machine;

Fig. 6 is a vertical section slightly in rear ,ofthe main driving shaft.

The invention consists generally in an overseaming machine wherein two feed wheels are so disposed as to support the fabric or material eing stitched in substantially a vertical plane, and these feed wheels Specification of Letters Patent.

Patented Aug. 14:, 121W.

Serial-No. 797,773.

are intermittently operated to feed the fabric or material to the stitching mechanism. The material being stitched extends slightly above the upper edges of the feed wheels, and a needle carried by a horizontally reciprocating needle bar moves into and out of the material, while a looper, preferably of the thread-carrying type, cooperates with the needle first on one side of the material and then the other, moving over the edge of the materials so as to lay the threads around :the edge of the material, thus forming an over edge connecting seam for the pieces of fabric or material being stitched.

The needle is moved into and out of the fabric positively by an eccentric, and the looper is moved into and Out of the needle loop by one eccentric, raised and lowered by another .eccentric, and moved from one side of the material to the other by a third eccentric.

Referring more in detail to the drawings, my improved machine consists of a supporting casing 1, which houses the operating devices for the stitch forming elements.-

Mounted in suitable journals carried by the casing is a main shaft 2. This main shaft carries a belt wheel 3 at each end thereof. At the forward part of the casing there is a suitable bracket in which is mounted a vertical shaft carrying a feed Wheel 4. Pivoted at 5 to this bracket is .a, second movable bracket 6 in which is journaled a shaft carrying a feed wheel 7. The fabric or material to be stitched is clamped between the feed Wheels 4 and 7 so that the edges extend slightly above said feed wheels. The shafts carrying the feed wheels have intermeshing gears 8 and 9 respectively, So that these feed wheels are caused to travel in unison in opposite directions, and, therefore, said feed Wheels cooperate in feeding the fabric or material being stitched to the stitching mechanism. The shaft carrying the feed wheel 4 is intermediately actuated by a reciprocating arm 10, Which carries friction clutch devices 11 shown in Fig. 5. This arm moves about the axis of the shaft as a center and is vibrated by a link 12 which is adjustably connected to an arm 13 mounted on a short shaft 14 journaled in bearings 15 on the main casing 1. The arm 13 is slotted and the link 12 may be shifted along the slot and thereby vary the throw of the arm 10, and the movement imparted to the feed lot wheels. The shaft 14 at its upper end carries a second arm 16 which projects through a slot in the casing to the interior thereof and the inner end of this arm has a ball stu connection with a link 17 formed as a part of an eccentric strap 18, which coiiperates with an eccentric 19 on the main shaft 2.

From the above description it will be ap parent that the feed wheels are positively actuated through a direct connection with an eccentric on the main shaft.

This feeding mechanism per 86 is not claimed herein but is shown, described and claimed in my co-pending application, Serial No. 797,774, filed of even, date herewith.

The needle 20 of the stitch forming mechanism is mounted in a needle bar 21 and reciprocates in bearings 22 and 23. These bearings are so disposed that the nee-.

dle bar reciprocates substantially in a horizontal plane, and the needle is moved back and forth directly above the upper edges of the feed wheels, and will be caused to penetrate the edges of the material extending above the feed wheels. fixedly secured to the needle. bar between the bearings 22 and 23. This collar has a depending lug which is connected by a link 25. to a lever 26. This lever 26 is fulcrumed so as to turn freely on a supporting shaft 27, which, in turn, is mounted in suitable journals 28 carried by the casing. The lever 26 between its ends carries a ball stud 29, to which is pivotally connected a link 30. This link 30 at its opposite end is formed integral with an eccentric strap 31, which coiiperates with an eccentric 32 on the main shaft 2.

As the main shaft 2 rotates, this eccentric 32 positively vibrates the lever 26 back and forth, and the lever, through the link connection 25, positively reciprocates the needle.

Coiiperating with the needle 20 is a looper 33. This looper 33 is mounted in a looper rod 34, which, in turn, is mounted in a looper rod support 35. This looper rod support is in the form of a double yoke, which carries at each side a short stud shaft and these shafts are mounted in suitable journals 36 carried by the casing 1. These stud shafts are in axial alinement and this permits the double yoke looper rod support to swing so as to move therod in a vertical plane. The looper rod is reciprocated back and forth in the looper rod support 35 by a lever 37, which is fulcrumed on the shaft 27 and turns freely thereon. This lever at its upper end is connected to a ball stud mounted on a sleeve 38, journaled between fixed collars 39 on the looper rod. These fixed collars 39 prevent the sleeve 38 from moving endwise, but also allow the looper rod to turn in the sleeve. 7

The lever 37 has a laterally extending ball stud between its ends to which is pivot- A collar 24 is the main shaft. The rotation of the mam shaft will, through the lever 37, move the looper rod endwise in the looper rod support 35, and this endwise movement of the looper rodcarries the looper from one side of the material to the other, .and thus lays the threads over the edge of the material.

The looper rod is oscillated in its support to carry the looper into and out of the needle loop by a link 42, which is connected at its upper end to a laterally projecting stud 43 fixedly attached to the looperrod. This link 42 is formed integral with an eccentric strap 44 which cotiperates with an eccentric 44 on the main shaft 2. As the main shaft rotates the link will be moved endwise and in turn cause the looper rod to oscillate.

The looper is raised as it moves from one side of the material to the other so as to be carried over the edge of the material by imparting a swingin movement to the looper rod support 35. ountedcn a cross shaft 45 journaled in suitable bearings in the casing is a lever 46. This lever at its lower end is pivoted at 47 to a link 48 which is formed integral with an eccentric strap cotiperating with an eccentric 49 on the main shaft. The lever 46 at its upper end is pivoted to a link 50, and this link is, in turn, pivoted to a ball stud 51, carried by a collar 52, clamped on the looper rod support 35. The pivotal connection between the link 50 and the lever 46 moves from one side of a line passing through the fulcrum of the lever and the ball stud 51 to the other side thereof, so that, as the lever 46 is given one. complete oscillation, the looper rod will be lowered and raised twice. It will be apparent from the above de scription that I have provided three separate eccentrics, each of which is connected positively and by a direct series of connections either to the looper rod or the looper rod support. These eccentrics are so timed as to coiiperate with each other in moving the looper, but the movement imparted to the looper from each eccentric is, in a measure, distinct and independent from that imparted by the other eccentrics. These eccentrics are so timed that thelooper moves forward into the needle loop thrown out by the needle after the needle has penetrated the material, after which the looper, still remaining in the needle loop, is raised and then moved laterally to the other side of the material where it is lowered and positioned so that the needle on its next stroke can pass between the looper thread and thebody of the looper, after which the looper is raised gradually and again swung so as to be withdrawn from the needle loop to permit the setting of the stitch. The looper is then carried across the plane of the-material to the other side thereof, and is ready to again enter the needle loop.

The connection between the link 42 and the stud 43 is so disposed relative to the position of the looper on the looper bar that a downward movement of the link retracts the looper and an upward movement of the link moves the looper forward. lVhen the looper is positioned for entering the needle loop, the front end of the supporting yoke is at this time depressed. As the looper moves forward it is slightly raised, which also lowers the rear end of the yoke. This movement of the looper forward as above noted is caused by an-upward movement of the link 42. .Therefore the looper will be moved forward into the needle loop by the combined action of the depressing of the rear end of the yoke and the upward movement of the link 42. In other Words, the oscillating movement of the yoke is at this time compounded with the movement of the link to give the looper-a very rapid movement into the needle loop. The same is true when the looper is being depressed and positioned for the needle topass between the looper thread and the body of the looper, except the movement is slow.

I have not described the thread controlling devices for the needle and the looper thread, as the present invention is directed solely to the devices for imparting .movement to the feed wheels broadly, to the needle'and to the looper, which devices. are so constructed that the machine may be driven at high speed and the parts be substantially free from vibration so that each element 1n its rapid movement will perform its-function and properly co-act in stitching the fabric. The particular manner of supporting the needle bar, above referred to,

and also the looper support per 36, form no part of the present invention.

It is obvious that minor changes in the details of construction and the arrangement of parts may be made without departing from the spirit of the invention, as set forth' in the appended claims.

Having thus described my invention, what I claim is:

1. A sewing machine comprising means for supporting the material in a vertical position, and mechanism for forming a seam around the edge of said'material including a needle, an eccentric for positively moving said needle back and forth, a looper, an arm carried by said looper, an eccentric, an eccentric strap directly connected to said arm and cooperating with said eccentric for swinging the looper into and out of the needle loop, an eccentric, means cooperating with said eccentric for positively moving the looper from one side of the material to the other and independent means for positively raising and lowering the looper to carry over the edge of the material.

2. A sewing machine comprising feed Wheelsfor supporting the material in a vertical plane and for carrying the same to and from the stitching mechanism, a needle, an eccentric, means operated thereby for positively reciprocating the needle, a looper, a looper rod, a supporting yoke for said looper rod, a main shaft, an eccentric on the main shaft, devices operated by said eccentric for rocking'said yoke, a second eccentric on the main shaft, devices operated by said second eccentric for reciprocating said rod back and forth in said yoke, a third eccentric on the main shaft, an arm connected to the looper rod, and an eccentric strap cooperating with said third eccentric and having connection with said arm for oscillating the looper rod.

3. A sewing machine comprising feed wheels for supporting the material in a vertical plane, and for carrying the same to and from the stitching mechanism, a main shaft, an eccentric mounted on said shaft and devices actuated thereby for actuating said feed wheels, a needle, a second eccentric means operated thereby for positively reciprocating the needle, a looper, a looper rod, a supporting yoke for said looper rod, a third eccentric on the main shaft, devices operated by said third eccentric for rocking said yoke, .a fourth eccentric on the main shaft, devices operated by said fourth eccentric for reciprocating the looper rod back and forth in said yoke, a fifth eccentric on the main shaft, an arm connected to the looper rod and an eccentric strap directly connected to said arm and cooperating with saiid fifth eccentric for oscillating the looper ro 4:. A sewing machine including in combi nation a casing, feed wheels carried thereby for supporting the material in substantially a vertical plane, a needle bar mounted in said casing, and reciprocating in substantially a horizontal plane, a needle carried by said needle bar, a main shaft journaled in said casing, means actuated by said shaft for reciprocating said needle bar, a looper, a-l0oper rod, a looper rod support, means for pivotally supporting said looper rod support, an eccentric mounted on said shaft and devices actuated thereby for reciprocating said looperrod in its support, an eccentric mounted on said shaft, and devices actuated thereby for oscillating said looper rod in its support, an eccentric carried by said shaft, and devices actuated thereby for oscillating said looper rod support, said last named devices including a lever pivoted intermediate its ends, a link actuated by said last named eccentric and connected to the lower end of said lever, a link pivoted to the upper end of said lever and to said looper rod support, said last named link and said lever being so disposed as to raise and lower said looper rod support twice for each rotation of themain shaft.

5. A sewing machine comprising means for supporting the material in a vertical position, and stitch forming mechanism for making an over-edge stitch including a needle, means for operating the needle, a looper, a looper supporting bar, a yoke in which said looper supporting bar is mounted, means for positively reciprocating said looper supporting bar in said yoke, and independent means for positively oscillating said looper supporting bar in said yoke, and means for positively oscillating said yoke, said means for oscillating the yoke, and said means for oscillating the looper being so arranged and constructed that the movements imparted to the looper bar are compounded for moving the looper quickly into the needle 'loop.

6. A sewing machine comprising means for supporting the material in a vertical position, and stitch forming mechanism for making an overhead stitch including a needle, means for operating the needle, a looper, a looper supporting bar, a yoke in which said looper supporting bar is mounted, means fon positively reciprocating said looper supporting bar in said yoke, means for positively oscillating said looper supporting bar in said yoke, and, independent means for positively oscillating said yoke, said means for oscillating the yoke, and said means for oscillating the looper being so arranged and constructed that the movements imparted to the looper bar are compounded for moving the looper quickly into the needle loop, and are compounded. for quickly positioning the looper so that tne needle will pass be tween the looper thread and the body of the looper.

In testimony whereof, I aflix my signature, in presence of two witnesses.

LANSING ONDERDONK.

Witnesses:

R. A. Oswaw, MATTHEW P. RYAN,

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