US891310A - Binding attachment for sewing-machines. - Google Patents

Description

PATENTED JUNE 23, 1908.

' F. WEVER. I

BINDING ATTACHMENT FOR SEWING MACHINES.

APPLICATION FILED 1'33. 14. 1905.

3 SHEETS-SHEET 1.

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PATENTBD JUNE 23, 1908.

P. WEVER. BINDING ATTACHMENT FORIPSEWING MACHINES.

APPL IGATION FILED FEB. 14. 1905.

3 SHEETS-SHEBT 2.

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No. 891,310. PATENTED JUNE 23, 1908.

. F. WEVBR.

BINDING ATTACHMENT FOR SEWING MACHINES.

APPLICATION FILED FEB. 14. 1905.

3 SHEETS-SHEET 3.

WITNESSES: v fNl ENTOR A lomeys 'rn: NORRIS PETERS co, WASHINDTUN, o. c.

also forked at its upper end and receives the FRITZ WEVER, or STUTTGART, GERMANY.

BINDING ATTAOIfl/IENT FOR SEWING-MACHINES.

Specification of Letters Patent.

Patented June 23, 190s.

Application filed February 14, 1905. Serial No. 245,599.

To all whom it may concern:

Be it known that I, FRITZ WEVER, a citizen of the German Em ire, residing at Stutt gart, in the county 0 Stuttgart, Wiirtemberg, Germany, have invented certain new and useful Improvements in Binding Attachments for Sew1ngMachines, of which the following is a description, reference being had to the accompanying drawing, and to the letters and figures of reference marked thereon.

My invention relates to binding attachments for sewing machines and means for feeding the binding to the binder.

The object of my invention is to feed an elastic binding made by cutting into strips lar e pieces of knit fabric, to the binder with little or no tension.

The invention consists in the novel arrangement of parts hereinafter described and pointed out in the description.

In the drawings :v Figure 1 is an end elevation of a machinewith my improvements applied thereto, the cloth plate and the friction clutch members being shown in section; Fig. 2 is a top plan view of the bed plate of a machine, showlng my improvements ap lied thereto; Fig. 3 is a sectional view 0 the binder on the line 3-3 of Fig. 4; Fig. 4 is a plan view of the binder; Fig. 5 is a view of the binder looking from the left in Fig. 4; Fig. 5 is a view similar to Fig. 5, but viewing the binder from the right; and Fig. 6 shows the webbing d and the binding with its edges folded, and in position to be attached ligherieto. b

The in ing stri preparatory to eing placed in the feeding mechanism is first wound on a spool by any suitable mechanism, whereby the edges are unrolled and the strip wound into a roll.

The s 001 3 with the strip wound thereon is place in the carrier 2, (Flgs. 1 and 2); this carrier 2 is pivoted at 19 to the bed of the machine, and has at its forward end a downwardly and outwardly projecting arm carrying a bearing 31 for one end of the spool spindle. Projecting upwardly from the lever 2 is a su port 32, which is forked at its upper end. lvoted between said forks is an arm 18, which carries at its free end a bearing 33, which is in alinement with the bearing 31, grid receives the upper end of the spool spin- Intermediate the support 32 and the free end of the lever 2 is a standard 34, which is arm 18 therebetween when in its lowered position.

A suitable thumb nut 35 (Fig. 2) presses the forks against said arm and holds it in the position shown in Fig. 1. thumb nut the arm 18 may bev raised, and

By loosening said the spool inserted. The spool spindle has reduoe ends (Fig. 2), which are received in the bearings carried by the arm 18 and lever 2.

The feed wheel 4 is carried by "a yoke 36, sup orted by a bracket arm 37, secured to a ,stud 38 on the bed plate. The feed wheel is concave in longitudinal cross section, and roughened so as to engage and feed the binding from the spool 3. frictional engagement with the feed wheel by a coiled spring 5, secured at one end to the pivot 19 by a screw 20, and at the other end to the lever 2 by a stud 21. The feed wheel is given an intermittent feeding movement always in the same direction by the friction clutch member 2325. The upper end of the feed wheel is supported in the yoke 36 by a conical end screw 39, assing through the free end of the yoke and entering a central aperture in the feed wheel. The lower end of said wheel has a bearing stud 24 screwed tightly into said wheel. Said stud passes through the lower member of the yoke, and has ri idly secured thereto a clutch member 25. oosely mounted 'on the outer endof said stud is a second clutch member 23. Said member 23 is retained on the stud 24 by the head 40. A spring is interposed between the clutch members 25 and 23 and normally holds the member 23 out of engagement with the member 25, and in contact with the head 40 on the stud. Eccentrically carried by the member 23, is pivot stud 41 which has pivotally connected thereto, a lever 42. Said lever is pivotally connected at its other end to a ball stud carried by a bracket 43 depending from the feed bar 22 of the machines. The feed bar 22 receives its backward and forward motion to feed the fabric from an eccentric disk mounted on the end of the shaft, see Fig. 1. This disk is ad- Said spool 3 is held in justably connected to the main shaft in the 42 will be oscillated so as to bring the' clutched members 23 and 25, into frictional contact. On the other hand, when the feed bar is raised to en age the fabric on its forward stroke, the c utch members will be re leased. The oscillation, therefore, of the clutched member 23 on the backward or idle movement of the feed dog is communicated to the feed wheel, and the binding, which re sults in drawing off sufiicient bindirw for the next feed movement of the fabric. It will be noted from the arrangement of parts that when the feed of the machine is adjusted to increase or decrease its length, there will be a corresponding increase or decrease in the amount of binding fed from the spool 3.

The binder, as shown more clearly in Figs. 3, 4, 5 and 5, consists of an attaching plate 9, havin slots 1717, by which said plate is adjustab ly connected to the bed plate of the machine. Pivoted at 15 to the attaching plate is the base plate 16, through which passes a screw 16. Said screw bears against the bed plate, and may be adjusted to raise or lower the binder head, as desired.

It will be noted "that the bed plate directly in front of the needle 7 is de ressed, thus afiording a recess to receive t e binder, so that the same may be set with its throat or guide for the web d substantially in the plane of the bed plate. The folding scrolls are arran ed at each side of said central guide. Sai binder head is formed by the plates 28, 28 and 28*.

Between the plates 28 is a spacing block 8 also forming an edge guide for the webbing d. Between the plates 28 and 28 are blocks 10, also serving to space the plates and as edge guides for the binding. The plates 28 are connected by the plate 28*, which is U- sha ed, thus forming guide ways 26 for the bin ing. The fabric is led through the guide-way between the plates '28 and its edge in contact with the edge and spacing block 8. The binding is led through the guide-way 26, with its edges between the plates 28 and 28 and in contactwith the guiding blocks 10. The clined front edges 30, which serve to unroll the binding, and the plates 28 have oppositely inclined edges 29 to unroll the edge of the webbing (Z.

The plates 28 and 28 are bent into the usual spiral guides 11 and 12, which serve to fold the edges 1) and c ofthe binding, as shown in Fig. 6. The projections 13 and 14 1 carried by the plates 28, extend outward beyond the plates 28 a at the delivery end of the binder and serve to hold the folded edge of the binding around the lates 28 Having thus describe my invention, What I claim as new and desire to secure by Letters Patent, is

1. In a sewing machine including stitch forming mechanism and feeding mechanism lates 28 have in-- to the binder; substantially as described.

2. In a sewing machine including stitch forming mechanism and feeding mechanism including means for changing the length of feed, a binder, a supporting s indle for the binding, and means operated rom the feeding mechanism,for feeding the binding to the binder; substantially as described.

3. In a sewing machine including stitch forming mechanism, a feeding mechanism, a binder, a supporting s indle for the binding and means operated y the feeding mechanism for engaging the binding on the spindle and feeding said binding to the binder.

4. In a sewing machine, a stitch-forming mechanism, a binder, a supporting spindle for the binding, and automatic mechanism engaging the binding on the spindle for feed ing said binding to the binder; substantially asdescribed.

5. In a sewing machine including stitch forming mechanism and feeding mechanism, having a feed bar, a bracket secured to said feed bar, a lever connected to said bracket, a binder, a supporting s indle for the binding and means interme iate said lever and said spindle for feeding the binding to the binder.

6. In a sewing machine including stitch forming mechanism, a feeding mechanism having a feed bar, a binder, a feed wheel for the binding, a friction clutch for operating said feed wheel and means connected to the feed bar for operating such friction clutch; substantially as described.

7. In a sewing machine including stitch forming mechanism, a feeding mechanism having a feed bar, a binder, a support for the binding, a feed wheel for engaging the binding on said su port, a friction clutch for operating said eed wheel, and a lever connected to said feed bar, and said friction clutch; substantially as described.

8. In a sewing machine, stitch-forming mechanism, a binder, a feed Wheel, said feed wheel having a.roughened surface, means for operating said wheel, a spindle having a roll of binding thereon, means for yieldingly holdin said roll in engagement with said feed w eel; substantially as described.

' 9. In a sewin machine including stitch forming mechanism, a feeding mechanism having a feed bar, a binder, a support for the bindin a feed wheel engaging the binding on sai support, said feed wheel having a roughened surface, friction clutch members for o erating said feed wheel, a s ring interosed between said clutch mem ers, and a ever connected to said feed bar, and said clutch members for operating the latter; substantially as described.

10. In a sewing machine, stitch-forming mechanism, feeding mechanism including a feed bar, a binder, and means 0 erated from said feed bar for engaging the bmding before it reaches said binder and feeding the binding to said binder; substantially as described.

11. In a sewing machine, stitch-forming mechanism, feeding mechanism including a feed bar, a binder, a feed wheel for the binding, and means operated from the feed bar for intermittently turnin said feed wheel; substantially as describe g 12. In a sewing machine a bed plate having the front ortion thereof depressed, a plate adjustab y secured to said depressed portion, a binder pivotally connected to said adjustable plate, a screw passing through said binder, and engagin the bed plate whereby said binder may e adjusted in a direction at an angle to the bed plate; sub 20 forming an e ge guidefor the fabric, outer 25 plates cooperating with said plates to guide the fabric, said plates being curved, so as to fold the edge of the binding, said lates also havin their forward edges inc ined opposite y to each other, whereby the edge of '30 the binding strip is unrolled.

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

FRITZ WEVER.

Witnesses:

' E. SoHMIDTT,

ERNST ENTERMANN.

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