US1000577A - Bobbin-winder for sewing-machines. - Google Patents

Description

j w. E. BLAIR. BOBBIN WINDBRIOR SEWING MACHINES. APPLICATION FILED JUNE 24, 1910.

v 09 7 Patented Aug. 15,f1911..

2 SHEETSH EET 1.

IIIVVENTOR WM. R. BLfl/Ia WITNESSES:

v A I v v I By fig W W. R. BLAIR.v

BOBBIN WINDBR FOR SEWING MACHINES. APPLIOATION rnmn'nmn 24,1910.

2 SHEETS -SHEET 2.

W/TA/ESSES: lNl/E/VTOI? 2 WM. R. 5mm

A770 IVE) 'PatentedAug. 15, 1911.

UNITED STATES PATENT orr ron.

w'rLLIAIvrn. BLAIR, on ST.- LOUIS, MISSOURI, assrenon r0 Lannie MACHINE COM- PANY, or-s'r." I.oUIs, MISSOURI, A CORPORATION or MISSOURI.

BOBBIN-WINDER Iron SEWING-MACHINES.

art to which it appertalns to make and use the same,-refe rence' being bad to the accompanying drawings formingpart of this specification, in 'which- Figurelis a side, levat-ional view ShQW. ingjmydevice applied to the standard of a sewing machine. -Fi'g. 2 .is a front elevational view thereof. fig. 3 is an enlarged view similar co-Fig. .1, with certain parts removed. Figsi. and 5 are detail'views.

This invention-relates to, anew and improved form of bobbin wind'er, which is especially adapted for attachment to the frame of an ordinary sewing. machine, but may or can be used in connection with any machine having a rotary element.

The object of my present invention is to provide a simplefrictionally driven means forrotating the" bobbin as the thread is wound thereupon.

With this object in view my invention consists in the construction, arrangement and combination of the -various parts of my device as are to be herein" described, and thereafter pointed out in the claims.

Iii-the drawings,- 1 indicates the Ordinary machine frame or standard, and 2 a boss thereon.

3 is a piece attached to and extending from the frame 1, and having a guide roller & at the end thereof. The frame 1 is also rovided with a seat 5 upon which is bolted a bracket 6 having an adjustable bearing point 8 mounted in a boss on one end there- In a boss on the bracket the bearing point 8 18 a rotary spin having at one lley 10, and

6 and opposite v end thereof a pu at the other end a shoulder 11 with an opening therein to receive the tapered end of the bobbin, and also a pin 12 projecting therefrom for rotating the bobbin 13. Between the bearing point 8 and the shoulder 11 is mounted the bobbin 13 which is to be Wound. Attached at the points 14 on the bracket 6 is a pivoted weighted thread presser 15 which is shaped in the form of a yoke, as illustrated in dotted lines in Figs.

Specification of Letters-Patent.

on the ley'er .22 is die 9' roll 24: is brought Patented Aug. 15, 1911.

Application filed June 24, 1919. Serial No. 568,730.

1 and 2, the arms-of which are connected to the pivot points 14 on the bracket 6; The body of the yoke piece 15 is made large to have plentyv ofweight. 16-isa small flat spring attached tothe frame 1 at 1f(,:and isadapted to be sprung 'out' frorn the frame 1 whenitheyoked piece 15 is raised, and forms a holdingdevi'ce to retain the element 15 in the dotted line position shown in Figs. 1 and 2.

'Mounted on a pivot 16" in the lug-2 is a hand lever 17- having a triangular projection thereon at the point '18,. Wherethis lever projects through the frame- 1 this frame has several notches 19-and 20 formed therein in which the projection 18 may be engaged. In proximity to the stud 16 is a stud21 mounted on the lever 17' to form a bearing point for lever 22 of L-shape. In one end ofthis lever is-mounted' a'sp'indle 23 having on opposite ends thereof a friction roller 2.4, and a drive -pulley25l Abelt 26 runs aroundfthe pulleys 10 and'25 and mounted a post 27 which is fconnectedwith a post 28-on the lever 17 by means of anexp'ansible helical spring 29. Gotiperating with the lever 22 is a stop lug 30 on the upper side of the lever 17'."

The operation of the device is as follows:

The thread passes-under the roller 4 to and around the bobbin 13. .The threadpresser 1-5 is removed from theholder 16. and is 'held' by. gravity in engagement with the thread inorder to prevent the slack of the thread from piling upon the bobbin, and aiiows the thread to be neatly wound in layers thereon. When the operator moves the hand lever 17 into the position shown in Fig. 1 the lug 18 is engaged in the lower notch 19 of the frame-1, due to the. spring action of the lever which is made ofthin flexible material. By this movement [of the lever 17 the lever 22 is moved downward by means of the spring 29 so that the frictioninto engagement with the driving wheel 31 of the machine and'is rotated thereby. The rotation of this friction roll 24 operates the belt 26 and causes the pulley 10 to rotate which in turn rotates the bobbin 13. The spring 29 allows the proper tension of theroller 24 when brought into contact with the driving wheel 31. After the bobbin has been fully wound the lever 17 is manually released from the notch 19 in the frame, and moved upward until engage a notch in the for the bobbin,

the projection 18 engages the upper notch 20, in which position the stop is brought into engagement with the lever 22 to remove the roller 24 from contact with the drive wheel 31..

';I am aware that minor changes in the rmnstructlon, arrangement and combination of the various parts of my improved device can be made and substituted for those hereinshown and described without departing from" the .nature and spirit of my invention, the scope of-which is indicated by the 2110- companying claims.

claim v:

1. A bobbin winder comprising a support for the bobbin, a rotary element connected thereto, a. lever, a driving mechanism mounted thereon and operatively connected to the rotary element, said lever being provided with a projecting portion adapted to hold the lever in operative position.

2. A bobbin Winder comprising a frame, a support for thebobbin mounted on the frame having a rotary element connected thereto, a, hand lever pivoted to the frame,

and a second; lever pivoted to the hand-lever having adrlvingmechanism mounted there- 4. ,A bobbin winder comprising a support I 4 for the bobbin,

a rotary element connected thereto, a lever machine and having a stop lug thereon, a

bobbin support to pivoted to the frame of the second lever pivoted to the first lever, anu

having a driving mechanism mounted thereon, operatively connected to thefrotary element', and a spring connected to both levers.

' 5.. A bobbin winder, comprising asupport for the bobbin, a. rotary element connected thereto, a shaft, a driving-wheeland a friction Wheel mounted thereon, a belt connection between the driving wheel and the ro-, tary element, and meansfor moving said shaft to bring'thefriction' wheelinto contact with a driving mechanism, I

6. A bobbin Winder comprising a frame, a support forthe bobbin mounted on the frame,a rotary element eonnected to the support, driving means mounted on the frame, a lever pivoted to the frameabove said driving means, operating means on the lever connected to means on the lever adapted to retain the lever with the operating means in contact with the driving means or out of contact therewith.

7. A bobbin Windercomprising a frame, a

support for the bobbin mounted thereon, a

rotary elementconnected to the support, driving means mounted on the frame, a lever pivoted to the frame above said drivconnected to the rotary element, and a projection on the lever adapted to engage notches on the frame to retain the lever with the operating means in contact or out of contact with the driving means.

In testimony Whereo I hereunto aflix my signature in the presence of two Witnesses, this 21st day of June, 1910.

WILLIAM R. BLA'iR.

- Witnesses:

] M. P. SMITH,

J W. Curr.

the rotary element, and

mg means, operating means on the lever

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