US1267581A - Ornamental-stitch sewing-machine. - Google Patents

Description

W. MYERS. ORNAMENTM. STITCH SEWING MACHNE. APPLICATION FILED OCT. 8. 1914.

Patented May 28,1918..

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INVENTOR ZUaZZer 779a)".

A TTORNEY W. MYERS. ORNAMENTAL STITCH SEWKNG MACHlNE.

APPUCATION HLED OCT. 8. 194- 1,267,581 Patented May 28, 1918..

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, r- BY ATTORNEY W. MYERS. ORNAMENTAL STITCH SEWlNG MACHiNE. AP'PLICATXON FILED OCT. 8, 1914.

1,267,581. Patented May28,1918.

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1,267,581. Patented May 28,1918.

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7 ATTORNEY STATE PATENT WALTER. ravens, or BRIDGEPORT, connections FACTURING COMPANY, A CORPGRATION OF NEW ORNAMENTAL -STITCH SEWING-MACHINR Application filed October 8, 1914. Serial No. 86'

pattern-cam having a cam-groove of a character to effect a given design, said groove beingtracked by a' stationary follower and the needle-carrying-bar controlled to eife'ct varieties of the given design without an in terchange of pattern-cams.

In the accompanying drawings, which form' a part ofthespeoification, Figures 1, 2- and 3 are'views in front side elevation, plan and rear side elevation respectively, of one form of ornamental stitch sewing machine equipped with the present invention. Fig. 4 a perspective of the clothpresser or attachment for presenting the fabric being acted on to theaction of the stitclrforming mechanism. Fig. 5a cross section onthe line AA, Fig. 4. Figs. 6, 7 and 8, a sectional view of the needle vibrating mechanism including the switclrcam carried by the main-shaft; a perspective of the needle vibrating segment-lever and a like view of the needle vibrating segmentlever-carrier, respectively, the latter view including the switch-cam follower. Fig. 9, a plan of the front end portion of the cloth plate, together with the needle-plate. F 10, details in perspective of one form of pattern-cam. Fig. 11, a second form of pattern-cam. Fig. 12, diagrammatic views of the designs effected by the pattern-cam of Fig. 10. the smaller view representing the largest design effected by said cani. Fig. 13, diagrammatic views of the design effected by: the pattern-cam of Fig. 11, the smaller view representing the largest design effected by said cam.

The present invention is shown as applied to a Singer ornamental stitch sewing machine, the same as is represented by United Specification of Letters Patent.

States patent application Serial No.

filed April 6, 1914.

Referrin to bed-plate of the standard 2 and arm or needle-bar drlvin rearend with the hand-or orrrcn.

, assienon To THE SINGER Mann- JERSEY.

ratemeanay 28, rats.

the figures, 1 represents the sewing machine UPQIl'WlHClI 15 mounted the bracket-arm comprising the bracket 3, 4 the mainshaft provided, at its 0 b band-wheel?) and at its opposite end with the take-up cam 6,

7 the sewing needle, 8

bar operatively conn said take-up cam, the

suitable bearings formed being mounted in in the swinging gate 10 screws, as 11, in a manner 12 the take-up lever, 13 and 14 the thread-controller.

constructions, thread-tension the needle-carryinge'cted by the link-9 with needle-carrying-bar 8 journaled on pintle common to earlier 15 represents the lower or looper actuat- 111g shaft operatively connected at'its rear end by suitable quarterlngcranks, as 16,

with the main-shaft 4,

provided with a flan 18, with the crank 19 shaft 20 provided with its opposite end being 17 connectedby link carried by the gearoperatively connected with a like gear-member 22 carried by thus transmitting to the loop-taker tions.

25 represents one sti the loop-taker driver 23,

tch-forming movements 218111 earlier construe form of commonly employed switch-cam into which tracks a follower 26 journaled in a suitable bearing 27 preferably formed integral with the segment lever carrier 28. which vided with a hollow suitable bearing 30 arm, the rear vided with a suitably end of said latter is proshaft 29 journaled in a formed in the bracketshaft being prosecured collar 31 to hold said shaft against accidental endwise movement. 32

denotes a segment lever provided with a hollow shaft 33 journale'd in the hollow shaft 29, 34, arcuate slot 35, controlled plunger 38 which registers the openings 39 or a segmental guide-slot notch 36 and spring- 37. provided with ateat with one or the other of 40 formed in the segment lever carrier 28, dependent upon the character of the seam 0r figure desired.

Into the hollow shaft 33 is slidably mounted a plunger 41 provided at one end with an enlarged oval head 42 its opposite end being threaded to receive the screw 43 Whose slotted head 44 is arranged on the side of the dividing wall 45 f0 rmed integral with the shaft 33, opposite to that of its threaded end, thus permitting endwise movements of said plunger of substantially the length of the body portion of said screw, spring 4:6 confined between said slotted head and the screw e7, acting to hold the plunger 41 in its outward position as shown in Figs. 2 and 6. i9 denotes a sleeve secured by screw to the rear end of the hollow shaft 33, and between the enlarged portion 51 of said sleeve and the collar 31 carried by the shaft 29 is confined the spring 52 which normally acts to hold the segment lever 32 in operative relation with its carrier 28, for a purpose later to be explained.

53 represents a bracket secured by screws, as 54, to the bracket-arm, 55 a rock-shaft journaled in suitable bearings formed in said bracket and onto said shaft is mounted to move endwise a yoke 56 provided with a crank-arm 57 carrying a cam-plate 58, said yoke being secured to turn with said shaft by a teated screw 59 threaded into said yoke and entering a suitable slot (not shown) formed into said shaft, a cam lever 6O Jivoted on a suitable in not shown I n shaft, acting in oppo-,

passing through said sit-ion to the resiliency of the spring 61 to move said yoke toward the rear side of the machine, thus carrying said cam'plate out of edective relationship with the head d2 of the plunger il, for a purpose later to be explained.

62 represents an oscillating shaft crank suitably secured upon the shaft 55 and at its free end provided with a stud-screw 63 which tracks a slot 64L formed in the segment lever slide connection 65, the lower end of the latter being provided with a suitable opening (not shown) through which extends a stud 66 threaded into the slide block 67 tracking the segmental guide-slot 34:, said stud also acting as the pivotal connection for one end of the swinging gate connection 68, the opposite end-of the latter being pivotally connected to the swinging gate 10 by a suitable ball joint connection 69.

70 represents a segmental slide block stop adjustably secured in the guide-slot 3%, the wing nut 71, threaded onto the stud 66, acting to secure the slide block 67 in given adjustment when it is desired to efiect successive Zigzag stitches of a given amplitude of needle vibration, a spring 72 attached at one end to the shaft crank 62 and at its opposite end to the connection acting to normally hold the stud 63 at the lower end of the slot 64.

73 represents a thread tension releasing crank-arm suitably secured to the rockshaft 55, said crank-arm, together with the shaft crank 62, acting to secure said shaft against accidental endwise movement, the crank arm being provided with a depending axis of the stud arm lug 74 which, when depressed, acts on the end of the tension stud 7 5 to move the latter in opposition to the resiliency of the flat spring 76 and coiled spring 77, thus lessening he degree of tension exerted by said latter spring on the tension disks, as 78.

To the front end of the crank-arm 73 is pivotally attached one end of a link 79 whose opposite end is pivotally attached to a rocklever 80 journaled on a stud 81 threaded into the arm bracket, and to the opposite end of said rock-lever is pivotally attached, by stud-screw 82, a hub 83 into which is threadt ed the upper end of a treadle-actuated rod 84 which, in practice, is operatively connected with a suitable treadle (not shown), a spring 85 acting to normallyhold, through the connections previously pointed out, the 66 in alinementwith the axis of the hollow shaft 33.

86 represents a spring depressed hollow cloti-presser carrying bar into which is mounted a rod 87 threaded at its upper end to receive the nut 88 and at its opposite end threaded into an enlarged extension 89pmvided with oppositely arranged walls, as 90, and gripping jaws, as 91, which latter are arranged slightly below the lower end of said cloth-presser carrying bar, 92 denotes the cloth-presser bracket provided with the slot 93, the latter, in practice, embracing the walls 90, the nut rod 87 and grip the oppositely arranged surfaces adjacent to said slots between the lower end of the cloth-presser-carrying-bar and the gripping jaws 91, thus securing the eloth-presser bracket to the lower end of the eloth-presser-carIying-bar.

W hen it is desired to stitch a figure of uniform stitches, the operator adjusts and by 'ing nut 71 secures the slide 67 to eii'ect the desired amplitude of vibration of the needle, and during the stitching operation the fabric manually turned under the needle for one, two or more rotations dependent upon the desired character of product, and at the completion of the formation of the stitches the operator moves the cam lever 60 to its vertical position, thus permitting the spring 61 to move the cam-plate 58 in line with the head 42 of the plunger %1 when the operator, through the manipulation of a suitable treadle, rocks the shaft which causes the cam-plate 58 to move the plunger i1, and through the medium of spring %6 and nut 4-, move the segment lever toward the operator a distance sufficient to release the teat 38 from engagement with the opening $0 and with the stationary lug- 9% in engagement with the notch 36 formed in said segment lever, thus holding the latter out of engagement with the segment lever carrier and with the needle in its outside or depth stitch position or in position to form stitches about the figure in 88 acting to raise the ment, best represented by the spring The cloth-presser or embroidering attach- Figs. 4, 5, l0 and 11, is secured by screws, as 95 to the clothpresser bracket 92 and comprises a camfollower bracket 96 provided with a bracketarm 97 into the free end of which is suitably secured a pin 98 provided with a cam-follower 99, the opposite ends of the bracket 96 being provided with hearing lugs, as 100, into which is journaled the upright frame-shaft 102 of the cloth-presser-frame 103, a screw 104 acting to secure said hearing shaft against accidental movement in the direction of its length.

105 represents the pattern-cam disk for the designs illustrated in Fig. 12,

effecting said cam-disk being provided with an opening 106, cam-groove 107, bearing flange 108, depressed portion 109 into which the opening 106 is formed, the walls, as 110, of said opening depending below the under surface of the depressed portion 109 in the form of a thin rib, as 111, the free edges of which bear directly upon the fabric being acted on when effecting the stitching operation.

Referring more particularly to Figs. 5 and 10, the bearing flange 108 of the disk 105 is, by the employment of suitable ball bearings as 112, ournaled in the opening 113 in the frame 103, the flange 114 of said disk beingthreaded into the wall 115 of the retaining disk 116 and to the latter is secured by suitable screws, as 117 threaded into suitable openings as 118, the fabric feeding member 119 provided with spring yielding fabric engaging members 120, thus effecting the attachment shown complete in Fig. 4. 121 denotes a second pattern-cam disk interchangeable with the cam-disk 105 for effecting the designs represented by Fig. 13.

The sequence of the relative movements of the stitch-forming mechanism and clothpresser for efl'ecting the designs represented by Fig. 12 are as follows :-Supposing the cloth-presser, best represented by F ig. 4, to be. positioned with respect to the stitchforming mechanism as shown in Figs. 1 and 3, the operator places the fabric upon the cloth-plate 122 provided with the needleplate 123 and under the fabric engaging elements 120, when the slide-block 67, secured by nut 71 or held through a manually controlled treadle operatively connected with said block, positioned in the guide-slot cam-groove eccentric or 34 toeffect thedesired amplitude of lateral movement of the needle-bar which, for the purpose of the present consideration, correspondst-o the length of overseam stitch repif it is desired to add to the four sides the zigzag edge stitches 124 of the enlarged view 3) of Fig. l2, the operator permits the spring to move the slide-block 67 toward the'a-Xis of the hollow shaft 33 a distance sufficie-nt. to effect the desired amplitude of needle vibration, but if it is desired to finish the edge by a straight line of stitches astso shown by the edges 125 the operator permits the spring 85 to move the slide-block until the axis of the nut- 71and the hollow shaft 33 coincide, the fabric and cam-disk 105 being given one rotation for each operation.

As-the cam-follower is stationary and'the irregularly formed with respect to the axis of the cam-disk, the latter is given lateral movements in directions corresponding to the dotted lines AA, Fig. 4.

The cam represented by Fig. 11 is interchangeable with the cam 105 and effects view a of Fig. 13, together with the varieties represented by the enlarged views I) and 0 and in the same manner as view 0. of Fig. 12..

From the foregoing it is to be understood that the present invention is directed to the providing of a clothresser which effects given designs or figures without any care on the part of the operator except to give to the cam-disk its step-by-step rotary feed movements, and the stitching of certain varieties of a given design by changes in amplitude of needle vibration.

Having thus set forth the nature of the invention, what I claim herein is 1. In a machine for ornamental stitching, the combination with a rotary pattern-cam disk, a stitch-forming mechanism including 11 a cloth-presser carrying bar and a needle having lateral movements, of a clothresser carried by said bar and on which said disk is mounted and means, including a cam-follower operatively connected with said disk, for giving to said cloth-presser lateral move, ments.

2. In a machine for ornamental stitching, the combination with a rotary pattern-cam disk, a stitch-forming mechanism including a cloth-presser carrying bar and a needle having lateral movements and means for varying the amplitude of the latter, of a cloth-presser carried by said bar and upon which is mounted said disk, and means ineluding a cam-follower held against movement in the direction of the diameter of said disk for giving to said cloth-presser lateral movements.

3. In a machine for ornamental stitching,

M if:

the combination with a rotary patternecam disk of given design, a stitch-forming mechanism including a cloth-presser carrying-bar and a needle having lateral movements and means for varying their amplitude, of a clothresser on which is mounted said disk and means including a cam-follower operatively connected with said disk for giving to said resser-toot lateral movements, the changes in amplitude of the lateral movements of said needle controlled to efi'ect changes in the relative arrangement of the individual stitches forming the figure controlled by said disk.

9:. In a machine for ornamental stitching, the combination with a rotary pattern-cam disk carrying a fabric feeding member, a stitch-forming mechanism including a clothpresser carrying bar and a needle having lat eral movements, of a cloth-presser carried by said bar and upon which is mounted said disk, and means including a cam-follower operatively connected with said disk for a stitch-forming mechanism inclnding a clothresser carryingbar and a needle having lateral movements, or a cloth-presser 1 mechanism comprising a resiliently depressed cloth-presser carrylng bar provided with a cloth-presser frame into which is jonrnaled said disk and means, including a cam-tollower held against movement in the direction of the diameter or said disk, for

' giving to said frame lateral movements.

In testimony whereof, I have signed my name to this specification, 1n the presence of two subscribing WItHESSQS,

WALTER MYERS.

Witnesses EDWARD H. \Voons, FRANK M. VVOOTTON.

Copies of this patent may be obtained for five cents each. by addressing the Commissicner of Eatents. Washington, I9. (3.

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