US660053A

US660053A - Lace-knitting machine.

Info

Publication number: US660053A
Application number: US1898000A
Authority: US
Inventors: Charles E Drew
Original assignee: FRIEDBERGER Manufacturing Co
Current assignee: FRIEDBERGER Manufacturing Co
Priority date: 1900-06-04
Filing date: 1900-06-04
Publication date: 1900-10-16
Anticipated expiration: 1917-10-16

Description

Patented Oct. I6, |900.

5 Sheets-Sheet I.

C. IE. DREW.

LACE KNITTING MACHINE.

(Application led June 4, 1900.)

(No Model.)

LACE KNITTING MACHINE.

(Application led June 4, 1900.) (No Model.) 5 Sheets-$heet 2.

\ WWA/5855s; l l /NvE/voff a1/MM dt@ @Mw .7M/MVM@ @y l M ATTORNEYS 5 THE News PETERS co, pHoro-Lema. wAsmNGroN. u. c.

No. Patented Bot. I6, |900. E. E. DREW.

LACE MNITTING MACHINE.

(Application Bled June 1, 1900.) (No Windel.) 5 Sheets-Sheet 3.

INVENTOH N0. GBLS. Patented C. I6, i900.

E. E. DREW.

LACE KNITTING MACHINE.

(Application med June 4, 1900.) (No Model.) 5 Sheets-Shouf 4.

W/TNESSES /A/ VEN 7'0f? A TTOHNEYS 1n: Nonms PETER: cu. pHoro-uma, wAsmNm'uuv o. c

No. 000,053. Patented 0c. I6, |900. 0. E. DREW.

LACE MNH'TING MACHINE.

(Application lad Juna 4, 1900.)

(No Winde.) 5 Sheets-Sheet 5,

A TTOHNEYS' CHARLES E. DRFV, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TC -TIIE FRIEDBERGER MANUFACTURING COMPANY, OF PENNSYLVANIA.

LACE-KNVIVTING MACHINE.

SPECIFICATION forming part f Letters Patent No. 660,053, dated. October 16, 1900.

Application filed Tune 4, 1900. Serial No. 18,980. (No model.)

Be it known that. I, CHARLES E. DREW, a citizen ofthe United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Lace or Fancy-Trimming Knitting Machines, of which the followingis a full, clear, and exact description, reference being had to the accompanying drawings,

ro which forni a part of this specification.

My invention consists in certain improvements in the parts of lace or fancy-trim ming machines, whereby the fabric may be more correctly and rapidly manufactured and the design readily varied. Machines of this class are provided with a plurality of needles adapted to make the desired stitch, and to each of which when operative an independent thread is fed. This forms a series of parallel 2o stitches-say chain-stitches which may be separated from each other any desired distance, dependent upon which needles are operated by having thread fed to them. There are also a series of independent threads fed to the needles, and so fed as to be interlocked by the needles with the rows of stitches. The carriers of theselast-men tioned threads are given a movement to cause them to interlock with the desired chain-stitches, to pass from one 3o chain to another, and to dwell the desired time at any one chain of stitches,thus forming the pattern. Myinvention, specifically considered, comprises certain improved mechanism for accomplishing this result and enabling the pattern to be readily varied.

I have illustrated in the drawings my invention as embodied in a machine adapted to make that class of trimmings which consists of a heading for attachment to the garment,

4o a pillar-bar or ribbon-space, and an ornamental design beyond the ribbon-space or pillar-bar.

In the drawings, Figure l is a plan view of my improved machine. Fig. 2 is afront view of same. Figs. 3 and et are end views of same. Fig. 5 is a section on line 5 5, Fig. l.

Fig. 6 is a perspective view showing tubes for feedingpattern-threads. Fig. 7 is an enlarged view showing the manner in which the needles are fastened.

a a are the needles, some of which are used `the guide A3.

to form the chain-stitch for the heading, others to form the chainestitch for the pillar-har, and others to form the chainstitch for the design beyond the pillar-bar, all of which is well known, a plurality of trimmings being made upon one machine, about eight needles being' used for each repeat. These needles are secured in the following manner: A is the needle-bar, provided with slots a' equal in 6o number to the needles a. Each needle d is placed in a slot and the front plate A/ secured to the needle-bar A by the screws (t2. Through this plate A and corresponding to each slot d' is an orifice through which passes a set- 65 screw a3. The needles may be properly adjusted in place, and if any needle becomes broken or defective, by operatingits set-screw a3 the needle may be released. The bar A is secured to the needle-bar frame, which has 7o the lugs a4 a5. Secured tothe lugs di and a, projecting from the frame of the machine, is Between the lugs a5 and a, surrounding the guide A3, is the spring Al to counterbalance the frame. Connected to the lower ends of the frame A2 are the eccentricrods A5, operated by the eccentric A6 on the main driving-shaft B, rotated by the drivingpulley B. By this mechanism the needles are moved up and down vertically to produce 8o the chain-stitch and to interlock with the pattern-threads, as will hereinafter be described.

c represents the chain-stitch thread-guides, equal in number and corresponding to the 11eedles used. This thread is fed to and around the needles d in the following manner: The chain-stitch thread-guides care connected to a frame C in the same manner that the needles a are connected to their frame-that is7 the frame has slots c, in which the guides c 9o are placed and in which they are secured by the plate c2 and set-screws c3. The frame C is mounted on the shaft C/, so as to oscillate with, but slide upon, said shaft. The wellknown way of accomplishing this is by means of a rectangular shaft and a corresponding orice in the frame. This frame C is given an oscillatory movement to carry the thread across the path of the needles alongitudinal movement to carry the thread around the needle, an oscillatory movement to carry the thread away from the path of the needles,and

IDO

a longitudinal movement to return the guide Secured' to one end of.

to its initial position. the shaft is a lever C3, which is connected by link C4 with a lever C5, pivoted to the frame of the machine. Secured intermediate of this lever C5 is the roller C5, which is engaged by the cam C7 on the main drivingshaft B. This cam C7 has a concentric high portion c4 and concentric low portion c5. In

the rotation of this cam 0"' the shaft and guides are oscillated across and back from vthe path of lthe needles, and at each end ofthis oscillation there is la dwell in the move-` inent of the shaft. Provision for the longitudinal movement of the guide is made in` ha vi ng at i ts lo wer en d the rolle1c12,which rests upon the cam C11 on the shaft B. This cam C has high and low concentric portions, so that inits rotation the frame C and guides c are reciprocated, and there is a dwell `at each end of the reciprocation. 'lhe cams C11 and cam C7 make the same number of revolu-` tions; but the high and low concentric `portions are oppositely placed,so that in one rotation of these cams the frame C is iirs't moved across the path of the needles, then around the needles, then back from the path of the needles, and then `longitudinally to its initial position.

The pattern-threads are carried in guides, five sets D D4 being shown in the drawings. Each of these guides is secured to a corresponding bar d d4. Each of these bars d d4 has a cut-away portion (Z5. In each of these cut-'away portions rests one end of a lever e e4. Between the ends of each of these levers e e4 is a slotted portion e5. In these slotted portions are pivot-blocks' f, secured to lugs f5 ff. The lower end of each of the levers e e4 has a roller, (denoted by g.)l Upon the main driving-shaft B is the miter-gear B2, meshing with the miter-gear B3 upon the shaft B4. Upon and so as to rotate with this shaft Vare the gears H H4. Each of these gears meshes with a gear H5 H9 on the shaft H10. Each of these gears H5 H9 has a cam-groove, the roller g resting on the cam-groove of gear H5, roller of e' upon that of gear H6, roller of e2 upon that of gear H7, roller of e5 upon that of gear.

H8, and roller of e4 upon that of gear H9. The arrangement of gears is such that shaft B4 revolves one-halt' as fast as vshaft B and gears H5 H9 one-half as fast as gears H H4.

This arrangement would giveone rotation of gears H5 Hfto four stitches of the needles. By arranging the cam grooves the throw and dwell of the pattern-thread within the limit of four stitches may be dictated. By

C10 is a bell-crank pivoted at changing the rotation of gears B2 and B5 the rotation of 'the shaft ot' the gears H5 and H9 maybevaried. Therelationofanyindividual gear H5 H9 may be changed by changing such gear and its corresponding gear of the set H H4. The extentof th row ofthe pattern-thread may be varied by raising or lowering the pivot-block f, thereby1 varying the throw of the levers e e4.

From the foregoing the operation of the machine will be readily understood. The needles are given a reciprocating movement, and the thread is fed across their path, around the needles, and back, and each of the patternthreads is given a movement along the needles and is given the desired dwell to form the pattern.

Having now fully described my invention, what I claim, and desire to protect by Letters Patent, is-

l. In a fancy-knitting machine, in combination with the thread-guides and frame for the same, of a shaft upon which said frame is sleeved so as to move with and upon said shaft, a sleeve connected with said frame, there being agroove in said sleeve a bell-crank pivoted lever, one end resting in said groove, a rotating cam having high and low points and connection between said bell-crank lever and said cam.

2. In a fancy-knitting machine, in combination with the thread-guides and frame for thesame, of a shaft -upon which said frame is sleeved so to move with and upon said shaft a sleeve connected with said frame,there being a groove in saidsleeve a bell-crank pivoted lever, one end resting in said groove, a link connected to the other end of said bellcrank, a rotating cam having high and low points, said link resting upon and lbeing operated by said rotating crank.

3. In a fancy-knitting machine, in combination with the thread-guides and frame for the same, of a shaft upon which said frame is Vsleeved so as to move with and upon said shaft a sleeve connected with said frame,there being a'groove in said sleeve a bell-crank pivoted lever, one end resting in said groove, a rotatingcam having high and low points and connection between said bell-crank lever and said cam a ylever connected with the guidefraine-shaft, ya rotating cam having high and low points, a pivoted lever operated by said cam, and a link connecting said last-mentioned lever and the lever connected with the `shaft the high vand low points on said two rotating cams being respectively oppositely placed.

4. In a fancy-knitting machine, in combination with the thread-guides and frame for the same, of a shaft upon which said frame is sleeved so as to move with and upon said shaft a sleeve connected with said frame,there being a groove in said sleeve a bell-crank pivoted lever, one end resting in said groove, a rotating cam having high and low points and connection between said bell-crank lever IOO IIO

and said cam aleverconnected with the guideframe shaft, a rotating cam having high and low points, a pivoted lever operated by said cam, and a link connecting said last-mentioned lever and the lever connected with the shaft the high and low points on said two rotating cams being respectively oppositely placed, and said two cams rotating in unison.

5. In a fancy-knitting machine, in combination with a pattern-thread guide and sliding bar for the same, of a lever pivotally connected with said bar, a rotating cam having high and low points operating said lever, a removable gear operating said cam, a second removable gear meshing with the first-mentioned gear, a main driving-shaft and connection between said main driving-shaft and the second removable gear.

6. In a fancy-knitting machine, in combination with a patternthlead guide and sliding barfor the same, of a lever pivotally connected with said bar and adj ustably fulcrumed, a rotating cam having high and low points operating said lever, a removable gear operating said cam, a second removable gear meshing with the first-mentioned gear, a main driving-shaft and connection between said main driving-shaft and the second removable gear.

7. In a fancy-knitting machine, in combination with a pattern-thread guide and sliding bar for the same, of a lever pivotally connected with said bar, a slot in said lever, a pivot-block adjustably secured in said slot, a cam having high and low points, a removable gear operating said cam, a second removable gear meshing with the lrstmentioned gear, a main driving-shaft and connection between said main driving-shaft and the second removable gear.

8. In a fancy-knitting machine, in combination with a plurality of pattern thread guides and sliding bars for the same, of a plurality of levers equal in number to said bars, one lever being pivotally connected to each bar, rotating cams equal in number to said levers each bar having high and low points, each cam operating a lever, removable gears equal in number to said cams, each cam being operated bya gear, each firstmentioned gear having a corresponding secondmentioned gear, a main drivingshaft and connection between the main driving-shaft and the second set of gears.

9. In a fancy-knitting machine, in combination with a plurality of pattern thread guides and sliding bars for the same, of a plurality of levers equal in number to said bars, one lever being pivotally connected to each bar, and each le ver being adj ustably fulcrumed, rotating cams equal in number to said levers each bar having high and low points, each cam operating a lever, removable gears equal in number to said cams, each cam being operated by a gear, each first-mentioned gear having a corresponding secondmentioned gear, a main driving shaft and connection between the main driving-shaft and the second set ot' gears.

l0. In a fancy-knitting machine, in combination with a plurality of pattern -thread guides and sliding bars for the same, of a plurality of levers equal in number to said bars, one lever being pivotally connected to each bar, there being a slot in each lever and a pivot-block adjustably secured in said slot, rotating cams equal in number to said levers each bar having high and low points, each cam operating a lever, removable gears equal in number to said cams, each cam being 0perated by a gear, each Iirst mentioned gear having a corresponding second mentioned gear, a main driving-shaft and connection between the main driving-shaft and the second set of gears.

In testimony of which invention I have hereunto set my hand, at Philadelphia, Penn Sylvania, on this 31st day of May, 1900.

CHARLES E. DREW.

Witnesses:

M. F. ELLIS, J. M. SHINDLER, .I r.