US400608A - Button-hole attachment for sewing-machines - Google Patents

Button-hole attachment for sewing-machines Download PDF

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US400608A
US400608A US400608DA US400608A US 400608 A US400608 A US 400608A US 400608D A US400608D A US 400608DA US 400608 A US400608 A US 400608A
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standard
plate
screw
button
cloth
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/24—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing formed by general-purpose sewing machines modified by attachments, e.g. by detachable devices

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  • NA PETERS Priuxmhnwpw, warm-gian. nc.
  • My invention is an improved button-hole attachmentfor sewing-machines.
  • Its object is to makev a cheap, compact, reliable device which may be readily attached to any of the well-known sewing-machines for working button-holes.
  • Figure 1 is a side elevation of the device with the cloth-clamping jaws thrown open.
  • Fig. 2 is a view partly in side elevation and partly in longitudinal central vertical section. The cloth-clamp in this View is shown closed.
  • Fig. 3 is a top or plan view of the attachment.
  • Fig. 4 is an inverted plan view.
  • Fig. 5 is an elevation of the rear end.
  • Figs. 6 to 13, inclusive are detail views of the parts shown in the preceding figures.
  • Figs. 14 and 15 are transverse vertical sections of my preferred form of cloth-clamp.
  • Figs. 16, 17, and 18 are detail views of my preferred form of devices for giving lateral vibratory motion to the feed-screw and cloth-clamping plates.
  • the base-plate A upon which the operative parts are mounted, is preferably made of sheetbrass stamped up in cross-section to the form shown in Figs. 5, 8, 9, and 16. A portion of the rear end of this plate is turned up at a right angle to the base forming the standard A, to
  • the plate A is secured upon the bed-plate or table of the machine in the usual manner, or, as shown, .by a screw passing through the hole ce in the laterally-projecting lug of the plate.
  • the plate A is transversely slotted at d', and the standard D, which furnishes the front bearing for the interiorly-threaded cylinder or long n ut E, is secured upon the plate A above this slot by the screws d, Vwhich pass through the slot and into the base of the standard D.
  • the vShanks of the screws d snugly flt the slot, so that while they hold the standard upon the plate A they serve to guide the standard in its lateral vibratory movement upon the plate A.
  • the opposite or rear end of the tube E has a pivot or journal, e, which has its bearing in the upturned standard A', the bearing being sufciently large to permit of the vibratory movement of the tube E and the screw-shaft F, which carries at its forward end the cloth clamp or carrier, consisting of the stationary jaw G and hinged jaw H.
  • the stationary jaw has anV upwardly-projecting standard, h, which receives the forward end of the screw F.
  • a pin passes y through the standard and the screw, couples the parts together, and prevents the screw from turning.
  • the upper jaw or plate, H, of the holder is hinged to the standard, and has a spring, g, around its pintle, which bears upon its under side to throw the jaw up, as seen in Fig. l, when the cam-lever I, which is journaled upon the reduced forward end of the screweshaft F, is thrown up, as shown in Fig. 1.
  • the cloth is clamped between the jaws by throwing the lever I down, as seen in Fio'. 2.
  • a wheel, J ecured upon the female screw E back of the standard D is a wheel, J.
  • the face of the wheel adjacent to the standard is a grooved cam, the groove being of the form shown in Fig. 7.
  • a stud, d2 projects from the standard D into the groove, and, as the wheel J is revolved, imparts aV lateral vibratory motion to the male and female screw and the clothcarrier, which is connected to the forward end of the screw F.
  • the opposite face of the wheel .I is provided with six radial ribs, j, which are engaged alternately by one and then the other of the hooked pawls K K', which are pivoted upon opposite sides of the vibrating arm B, so that one pawlextends down upon each side of the axis, in order to rotate the shaft E in opposite directions as one or the other of the pawls is brought into action.
  • the pawls are pivoted upona pin, k, which passes through the arm B, and are separated from the arm by washers 7c.
  • the pawls K K are connected to a pivoted angle-plate or chair, L, by spring-links lm, m.
  • the chair L is pivoted on top of a standard, l, which rests upon the plate A and against its upturned end A.
  • the chair L has a handle, Z', which extends out beyond the edge of the plate, for the purpose of turning the chair upon its pivot, so as to bring one or the other of the pawls K or K in engagement with the radial ribs j upon wheel J.
  • the handle Z passes through an upward eX- tension, N, of a bar, n, which is arranged to slide underneath the plate A.
  • the bar n. has also upwardly-projecting stops n', which extend through the plate A and in the path of a tappet, 7L', which projects laterally from the plate G.
  • the purpose of this arrangement is to reverse the movement of the feed automatically when or before it reaches the limit of its travel.
  • the device may be set to work any sized button-hole and be entirely automatic in its movements; but for general use I prefer to change the device to work from one side to the other of the button-hole and from a forward to a backward movement, and vice versa, by hand.
  • the feed of the clothcarrier is changed backward or forward by turning the handle l', andis changed laterally, so that one or the other side of the buttonhole will be worked, by the slotted cam-lever O, which is pivoted upon the plate A.
  • a downwardly-projecting stud-pin, d3, from the standard D enters the eccentric slot in the lever O.
  • the lever is turned as in Fig. 3, the side of the button-hole nearest the lever side of the plate will be worked, and when the handle of the lever O is turned parallel with the edge of the plate A the stitching will be upon the opposite side of the hole.
  • the transverse clip or plate h2 which is underneath the plate A and secured by a screw to the under jaw, G, Fig. 4, is for the purpose of holding the clamping-jaws to the plate, while permitting them to slide.
  • the upper, H is the same as previously described; but the edges of the under plate or jaw, G', are curved springs serrated upon the edges to grasp the cloth.
  • the upper jaw has just been brought down upon the cloth, which is shown in dotted line, and in Fig. 15 the jaw has been clamped down tight, spreading the spring edges of the lower jaw out, and of course tightlystretching the cloth, if the but ton-hole is to be worked before being cut, and in case the button-hole is to be cutbefore working, then the spreading of the plate G will open the hole, so that the needle will freely pass into it at each alternate stroke.
  • the standard has, instead of the projecting stud-pin d2, two projecting lugs, d4, and the wheel J, instead of being grooved, has a cam, jz, projecting from it between the lugs d4. As the tubular screw is turned this cam, engaging the lugs upon the standard, will give the necessary lateral vibratory movement to the tube-screw and the cloth-carrier at the front end of it.
  • Vhat I claim is- 1.

Description

(No Model.) 2 sheets-sheet 1.Y
G. D. SPIBLMAN.- BUTTON HOLE ATTACHMENT EOE SEWING MACHINES..
No. 400,608. 'Paten'edApn 2,1889.
" NA PETERS. Priuxmhnwpw, wann-gian. nc.
(No Modl.) 2 Sheets-eShe-e't 2.
Y D. SPIELMAN. r. j BUTTON HOLE lATTACHMENT `EOE. SEWING MAGHINES.
No. 400,608 PatenltedApn 2, 18859.
UNITED STATES PATENT OFFICE.
GEORGE D. SPIELMAN, OF CINCINNATI, OHIO.
BiUTTON-HOLE ATTACHMENT FOR SEWING-MACHINES.
SPECIFICATION forming part of Letters Patent No. 400,608, dated April 2,I 1889.
Application filed October 24, 1887. Serial No. 253,170. (No model.)
To a/ZZ whom it may concern.:
Be it known that I, GEORGE D. SPIELMAN, a citizen of the United States, and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Button-Hole Attachments for Sewing-Machines, of which the following is a specification.
My invention is an improved button-hole attachmentfor sewing-machines., Its object is to makev a cheap, compact, reliable device which may be readily attached to any of the well-known sewing-machines for working button-holes.
The invention will be first fully described in connection with the accompanying drawings, and then particularly referred to and pointed out in the claims.
Referring to thedrawings, in which like `parts are indicated by similar reference-letters wherever they occur throughout the various views, Figure 1 is a side elevation of the device with the cloth-clamping jaws thrown open. Fig. 2 is a view partly in side elevation and partly in longitudinal central vertical section. The cloth-clamp in this View is shown closed. Fig. 3 is a top or plan view of the attachment. Fig. 4 is an inverted plan view. Fig. 5 is an elevation of the rear end. Figs. 6 to 13, inclusive, are detail views of the parts shown in the preceding figures. Figs. 14 and 15 are transverse vertical sections of my preferred form of cloth-clamp. Figs. 16, 17, and 18 are detail views of my preferred form of devices for giving lateral vibratory motion to the feed-screw and cloth-clamping plates.
The base-plate A, upon which the operative parts are mounted, is preferably made of sheetbrass stamped up in cross-section to the form shown in Figs. 5, 8, 9, and 16. A portion of the rear end of this plate is turned up at a right angle to the base forming the standard A, to
' the upper end of which is hinged thevarm B,
which is to connect with the needle-bar O or some moving part of the sewing-machine to impart motion to the button-hole attachment. The plate A is secured upon the bed-plate or table of the machine in the usual manner, or, as shown, .by a screw passing through the hole ce in the laterally-projecting lug of the plate.
The plate A is transversely slotted at d', and the standard D, which furnishes the front bearing for the interiorly-threaded cylinder or long n ut E, is secured upon the plate A above this slot by the screws d, Vwhich pass through the slot and into the base of the standard D. The vShanks of the screws d snugly flt the slot, so that while they hold the standard upon the plate A they serve to guide the standard in its lateral vibratory movement upon the plate A. The opposite or rear end of the tube E has a pivot or journal, e, which has its bearing in the upturned standard A', the bearing being sufciently large to permit of the vibratory movement of the tube E and the screw-shaft F, which carries at its forward end the cloth clamp or carrier, consisting of the stationary jaw G and hinged jaw H.
The stationary jaw has anV upwardly-projecting standard, h, which receives the forward end of the screw F. A pin passes y through the standard and the screw, couples the parts together, and prevents the screw from turning. The upper jaw or plate, H, of the holder is hinged to the standard, and has a spring, g, around its pintle, which bears upon its under side to throw the jaw up, as seen in Fig. l, when the cam-lever I, which is journaled upon the reduced forward end of the screweshaft F, is thrown up, as shown in Fig. 1. The cloth is clamped between the jaws by throwing the lever I down, as seen in Fio'. 2. f
ecured upon the female screw E back of the standard D is a wheel, J. The face of the wheel adjacent to the standard is a grooved cam, the groove being of the form shown in Fig. 7. A stud, d2, projects from the standard D into the groove, and, as the wheel J is revolved, imparts aV lateral vibratory motion to the male and female screw and the clothcarrier, which is connected to the forward end of the screw F. The opposite face of the wheel .I is provided with six radial ribs, j, which are engaged alternately by one and then the other of the hooked pawls K K', which are pivoted upon opposite sides of the vibrating arm B, so that one pawlextends down upon each side of the axis, in order to rotate the shaft E in opposite directions as one or the other of the pawls is brought into action. The pawls are pivoted upona pin, k, which passes through the arm B, and are separated from the arm by washers 7c. The pawls K K are connected to a pivoted angle-plate or chair, L, by spring-links lm, m. The chair L is pivoted on top of a standard, l, which rests upon the plate A and against its upturned end A. The chair L has a handle, Z', which extends out beyond the edge of the plate, for the purpose of turning the chair upon its pivot, so as to bring one or the other of the pawls K or K in engagement with the radial ribs j upon wheel J.
The handle Z passes through an upward eX- tension, N, of a bar, n, which is arranged to slide underneath the plate A. The bar n. has also upwardly-projecting stops n', which extend through the plate A and in the path of a tappet, 7L', which projects laterally from the plate G. The purpose of this arrangement is to reverse the movement of the feed automatically when or before it reaches the limit of its travel. By making these stops adjustable along the bar the device may be set to work any sized button-hole and be entirely automatic in its movements; but for general use I prefer to change the device to work from one side to the other of the button-hole and from a forward to a backward movement, and vice versa, by hand. The feed of the clothcarrier is changed backward or forward by turning the handle l', andis changed laterally, so that one or the other side of the buttonhole will be worked, by the slotted cam-lever O, which is pivoted upon the plate A. A downwardly-projecting stud-pin, d3, from the standard D enters the eccentric slot in the lever O. IVhen the lever is turned as in Fig. 3, the side of the button-hole nearest the lever side of the plate will be worked, and when the handle of the lever O is turned parallel with the edge of the plate A the stitching will be upon the opposite side of the hole. The transverse clip or plate h2, which is underneath the plate A and secured by a screw to the under jaw, G, Fig. 4, is for the purpose of holding the clamping-jaws to the plate, while permitting them to slide.
Referring to the form of clamping-jaws shown in Figs. 14 and 15, the upper, H, is the same as previously described; but the edges of the under plate or jaw, G', are curved springs serrated upon the edges to grasp the cloth. As seen in Fig. 14, the upper jaw has just been brought down upon the cloth, which is shown in dotted line, and in Fig. 15 the jaw has been clamped down tight, spreading the spring edges of the lower jaw out, and of course tightlystretching the cloth, if the but ton-hole is to be worked before being cut, and in case the button-hole is to be cutbefore working, then the spreading of the plate G will open the hole, so that the needle will freely pass into it at each alternate stroke.
In Figs. 16 to 18, inclusive, the standard has, instead of the projecting stud-pin d2, two projecting lugs, d4, and the wheel J, instead of being grooved, has a cam, jz, projecting from it between the lugs d4. As the tubular screw is turned this cam, engaging the lugs upon the standard, will give the necessary lateral vibratory movement to the tube-screw and the cloth-carrier at the front end of it.
It is evident that other well-known means may be employed, which, actuated by the neevdle-arm or other moving.r part of the machine,
would give an intermittent rotary motion to the tube E in first one direction and then 1n the other to feed the cloth-carrier to the needle, and hence I do not desire to be limited to the exact form shown, as I regard the feed devices consisting of the screw carrying and clamping plates, and having a lateral vlbratory arm, and also a forward-and-backward movement, as an essential feature of my 1nvention.
Vhat I claim is- 1. The combination of the base-plate, thc laterally-adjustable perforated standard, the male and female screws passing through the standard, a cloth-carri er connected to the male screw, a cani secured upon the female screw and engaging a part of the standard, whereby a lateral vibratory movement is imparted to the feed-screws and cloth-carrier when the female screw and its cam are revolved, and means, substantially as shown, to impart an intermittent rotary motion to the cam and female screw, substantially as set forth.
2. The combination of the base-plate, the laterally-adjustable perforated standard carrying lugs, the feed-screws E and F, -passing through the standard, a cloth-carrier connected to one of the screws, a wheel mounted upon the other feed-screw, and having a cam on one face engaging the lugs on the standard and projections on the other face, and suitably-actuated pawls engaging such projections.
3. The combination of the base-plate, the perforated standard, the feed-screws E F, arranged to vibrate laterally in said standard, the cloth-clamp connected to the forward end of the screw F, and means suitable for connectin g the screw E to the needle-bar, whereby an intermittent rotary motion is imparted to the screw E and a lateral vibratory motion to both screws and the clamp, substantially as specified.
4. The combination of the base-plate and laterally-adjustable perforated standard having lugs project-ing from it, the feed-screws E and F, passing through the standard, a cloth-carrier connected to the screw F and screw E, having its forward bearing in said standard, a wheel mounted upon the female screw, and having a cam on one face to engage the lugs on the standard and projections on the other face, suitably-actuated pawls engaging such projections, the pin d3, projecting from the standard, and the slotted cam-lever O, pivoted on the base-plate and engaging said pin to change the position of the standard.
IOO
IIO
V5. Thecombination of the base-plate,'the. 'laterally-adjustable perforated standard D `and stationary standard A', the feedscrews E and F, `passing through the standard D, the scre-WE having a pivotal bearing in the stationary standard and lateral play in its bearing` in the adjustable standard D, the
cloth-carrier connected to vscrew F, the vibrating bar pivoted in standard A and having l its opposite end arranged for connection WithV the needle-bar, and suitable means connected to the vibrating arm to impart an' intermittently rotary motion tothefeed-screw E, substantiallyfasshown and described,
. 6. The combination ofthe base-plate and vibrating and longitudinally reciprocating `feed-screws, a cloth-carrier connected to onei of said screws and a Wheel mounted upon the other feed-screw, said Wheel having projections, a vibrating larm actuatedby the needle-bar and paWls depending'from said arm and engaging `said projections, the pivoted chair, and spring-links connecting said chair andthe pawls, said chair having a lateral extension, whereby the chair is turned to bring the pawls alternately into and out of engagement With the projections on the feedscrew Wheel, substantially as hereinbefore set forth.
7 In a button-hole attachment, the combination of lthe vibrating and longitudinally- `the cloth-clamp having a lateral extension to alternately engage said lugs to change the feed from forward to backward movement, and vice versa, substantially as shown and described.
GEORGE D. SPIELMAN.
Witnesses:
FRANK D. RETTIcH, GEO. J. MURRAY.
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