US827652A

US827652A - Take-up for sewing-machines.

Info

Publication number: US827652A
Application number: US21578804A
Authority: US
Inventors: Lansing Onderdonk
Original assignee: Union Special Machine Co
Current assignee: Union Special Machine Co
Priority date: 1904-07-08
Filing date: 1904-07-08
Publication date: 1906-07-31
Anticipated expiration: 1923-07-31

Description

No. 827,652. PATENTED JULY 31, 1906. L. ONDERDONK.

TAKE-UP FOR SEWING MACHINES.

APPLICATION FILED JUL Y8,1904.

3 SHEETS-SHEET 1 W1 71 25555; 1 NVENTOR Y Altorney N0. 827,662. PATENTEDJULY 81, 1906.

L. ONDERDONK. TAKE-UP FOR SEWING MAGHINES..

APPLIGATION FILED JULY 8, 1-904.

8 SHEBTSSHEET 2.

2 lvitweoom No. 827,652. PATENTED JULY 81, 1906. L. ONDERDONK. TAKB UP FOR SEWING MAUHINE$.

APPLICATION FILED JULY8,1904.

3 SHEETS-SHEET Ii.

Sum-Am witmwaco atto'wwag producin slack, and thus the take-uphas a.

second id e'niovement. It will be noted that the controller is connected to the presser-bar the threadaeyes 11 and 12' to move downward,

, and-Ithe take-up arm will then travel over a {greater distance above the "consequently pull off more thread from the controller, and

supply. Thus it will be seen that the amount of thread supplied is regulated by the thickness of the .work. v

I will now describe the means for controlling the-slack thread during theidle move ments of the take-up. In the arm of the machine is the usual rotary shaft. Rigidly secured to the end of this shaft isithe slackthread 'controller S. Said controller is secured to the shaft by the screw 13. The controller carries a crank-pin 14, which is eccen trically disposed relative to the rotating shaft, and a link 1 connects said crank-pin 14 with the needle bar N for operating the same. Fixed to the head of the machine is a threadguiding arm A, which is bent at its free end to embrace the 'path of movement of the threadcontroller and has two thread-

eyes

15 and 16, through which the thread-is led from the tension to .the stitch-controller and take-up. Said slack-thread controller is formed with two oppositely-disposed cam-shaped threadengaging surfaces. One of these surfaces engages the thread, between the thread-

eyes

15 and 16, taking up the slack given up by the take-up in one of its idle movements, and the other engages the thread, taking up the slack durin the other idle movement of the tak-up.

' under positive control, the machine 1s It Wil thus beapparent that the thread is under constant control, the slack-thread controller controlling the slack in the needlethread between the tension and the stitch in the goods While the same is not under the control of the take-up. The thread being especially adapted" for high-speed Work.

While I have described the preferred form of the invention, I do not wish to be limited to the details described and shownin the drawings,as many modifications will suggest themselves to one skilled in the art to which it appertains without departing from the spirit of my invention.

Having thus described my invention, what 'I claim asnew, and desire to secure by Letters Patent, isa 4 F 1.- The combination of atake-up, thread-- through said i has two three guides cooperating therewith, means for re ciproca'ting said take-up across a line passing ides, whereby said take-up g drawing and two idle movements during each reciprocation thereof, and a slack-thread controller having separate means for positively and independently controlling the thread during each of the idle movements of the take up; substantially as described. p

2. The combination of a take-up, a stitchcontroller connected to the presserfoot and having thread-guides cooperating with the take-up, means for reciprocating said take-'up across a line passing through said guides, whereby said take-up has two thread-drawing and two idle movements during each re .ciprocation thereof, and positively-operated means for controlling the slack in the thread during the idle movements of the takeup,' substantially as described.

3. The combination of a take-up, a stitch controller connected to the resser-foot and having thread-guides cooperating with the take-up, means for reciprocating said take-up across a line passing through said guides, whereby said take-up has two thread-drawing and two idle movements during each re ciprocatioh thereof, a slack-thread controller having separate means for positively and independently controlling the thread during each of the idle movements of the take-up; substantially as described.

4}. The combination of a take-up, a stitchcontroller connected to the presser-foot and having thread-guides cooperating with the take-up, means for reciprocating said take-up across a line passing through said guides, whereby saidtake-up has two thread-drawing and two idle movements during'each re ciprocation thereof, a rotary slaclethread controller having separate and oppositely disposed portions for controlling the slack thread, and stationary thread-eyes cooperating with said controller; substantially as described.

5. The combination with a rotary shaft, of a slaclcthread controller carried thereby, a needle-bar, a crank-pin carried by said controller, a link connecting said crank-pin and needle-bar, and a stationary thread-guide cooperating with said controller; substantially as described.

6. The combination with a rotary shaft, of a slack-thread controller secured to the end of said shaft, a needle-bar, a crank-pin carried by said controller, a link connecting said crank-pin and needle-bar, and a stationary threa -guide cooperating with said controller substantially as described.

7. The combination with a rotary shaftfof' a slack-thread controller secured to the end of said shaft, a needle-bar, a crank-pin carried by said controller, a link connecting said crank-pin and needle-bar, a take-up carried by the needle-bar, and thread-guides cooper-v ating with said take-up substantiallyias described. A 8. The combination with a rotary shaft, of a slack-thread controller secured to the end