US96886A - Improvement in sewing-machine - Google Patents

Description

2 Sheets Sheet 1.

P. J.- CLEVER.

Sewingl Machine.

Patented Nov. 16. 1869.

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-tluiiril mes Letters Paten-t No. 96,886, dated November 16, 1869.

The Schedule referred to in these Letters Patent anda-raking part of the same.

To all whom itonay concern:

Be it known that 1,' P. J. CLEVER, of Goliad, in the county of Goliad, and State of Texas, have invented a new and improved Sewing-Machine; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this spccication.

' This invention relates to improvements in sewingmacbnes, and has for its object to .provide more use` ful and eilicient machines than those now in use.

The invention consists in the combination and 'ar-' rangement ofthe operating-devices, as hereinafter described.-

Figure 1 represents a longitudinal sectional eleva-- tion of my improved machine;

Figure 2 represents a transverse sectional elevation, taken on the line x :c of iig. l;

Figure 3 is a detail, showing a side elevation of the devices for operating the feed-device, and arranged to feed in either of two directions; p

Figure 4 is an elevation ofthe sameat night angles to theelevation of fig. 3, and partly sectioned;

Figure 5 is a detail, showingl the shuttle andshuttlecarrying arm, and the crank and connecting-rod for operating it;

Figure (i is a plan view' of .the` feed-shoe;

Figure 7 is a detail, showing the arrangement for throwing the friction driving-wheel intogear or ont of gear with the friction-wheel on the crank-shaft;

Figure 8 is a front elevation of the tension-device;

Fignref) is a det-ail, showing the arrangement of devices introduced between the crank-shaft'and the needle-arm for working the latter; and

Figure l() is a sectional elevation ofthe needle-arm and cloth-presser support, showing. the arrangement of the needle-arm and tension-spring.

Similar letters of reference indicate corresponding parts.

The treadle A is mounted adjustably on a frame, A, capable of supporting it in the same relative position to either side of the table, so that it may be changed from side to side, or to one end, as mayfoe -above the rod. The treadle is also provided with `a semicirculzu. recess, fitting and oscillating on it.

The treadle is jointed to a lever, A, pivoted at 'A7,

and connected to the lower end of a connecting-rod, A, at A".

This rod A9 isconnected to a crank-shaft, Al, whereon is mounted a friction driving-wheel, All.

The shaft A1 is mounted on a frame, B, hinged at Bl to the side of the frame, and connected at the other end, on the opposite side of the machine, to a bar, B2, capable of rising and falling, and arranged above a cam-dogB3, arranged on an axle, and provided with a handle for turning it, to raise or lower it, and above'A tlie'frame may be placed a spring, 154, as seen in de tailin fig. 7, Sheet 1I of drawings, for pressing it down.

The cam-dog is suspended by a hanger, B, from a bar, B6, fixed to the side of the frame, and the spring Bt, .when used, is arranged .under this bar.

By turning this camdog into the position represented in iig. 7,'the fiahe B will be raised, carrying the wheel A up into contact with the friction-wheel B7, on the crank-shaft B", arranged under the table, parallel with the needle-arm support,- and in the bearings B9 and B1".

This wheel Bl clutches with a ratchet-clutch, B, connected to the shaft, so as to impart rotary motion to it, but capable of sliding on itto andfrom the wheel,

and provided with a spring, B1", to kecp it up against the clutch on the wheel.

This arrangement -is provided, so that if the drivin g'' wheel is turned the wrong way, the clutches will slip,

' and will not turn the crank-shaft.

Bla is a balance-wheel ou a crank-shaft, and B1* a friction-brake lever, pivoted at Bl, 'and provided with a rod, B16, rising up to the under side of the table, through which a iinger-stnd, B", with a socket in the bottom for the reception ofthe upper end of the rod B1, works, so that the operator may bring the brake into contact with the wheel at any time, by pressing down thereon. y

This connection with the rod B is made to admit of raising the table, which is hinged at one side when required.

A jointed brace, B1, and sleeve, Bl, are provided for holding the table when raised up. lhe ends of the jointed brace lap at the joint, and assume the saine line when the table is raised up, so that the sleeve slides on the lapped ends, and holds them from turn ing back.

The crank c of the shaft B is connected, by a connectingrod, el, with a diamondshaped plate, e, mounted onA a rock-shaft, c, and a connecting-rod, c, connects this plate with the needle-arm o". 4

The connection of the rod c4 with 'the wrist-pin of the plate o2 is made by means of a double joint, so arranged that the rod may have oscillation in directions Vperpendicular to each other.

The needle-arm o2 works in a hollow needle-arm u-pport, c6, and is provided at one, or it may be both ides of its point c7, with springs c", which have the tfect to prevent any pounding or jarring in arresting he motion ofthe needle-arm at the end of eachmovenent, which might otherwise be the case, owing to he particul-ar arrangement of the oscillating plate c, ,nd the connections therewith.

c9 .represents the vibrating thread-tension spring, ivoted to the needle-arm support at ci", and connected o the needle-arm by' the link ou. The end projects hrough the slot in the end of the needle-arm support, ,nd is provided with a guide-eye, 0'2.

c13 is a spring, which may or may not be used, but ntended more especially for use when the link c is ivoted, as shown at 0M.

The shuttle-carrier D is a curved arm, forked at the xpperend, and ttcd at the lower end loosely7 on the JXle D1. It is worked by a crank, ])2, in the shaft B, .nd a connecting-rod, D. rlhe latter is made in' two qual parts or halves, and fastened together by a sin- ;le screw. This construction allows the same to be piickly attached and removed.

D4 is the shuttle, which is supported with it's open ace, as seen in iig. 5, against the plate D5, by the forks )G of the arm D, so that the thread of the needle )asses between the said forks and the back of the ;huttle.

rlhe lface of the plate D5 is provided with a vertical groove for the needle opening to the face of the shut- ,le, vas shown in lig. 4, at D7, and in iig. 1, so that the oops from the needle project out of thesaid recess )eyond the point of the shuttle.

The tension for the shuttle-threads is produced by t spring,'Df, bearing ou the end D9 of the bobbin, and tdjusted by a set-screw, Dl, passing through the up- Jer side ofthe shuttle, and guarded, so as not to catch ahe thread, by curved wire guard, D11; This screw maybe reached, for adjusting it, by a screw-drivel', `hrough the slot in the table, covered `by a slide, D12.

E is the feed-shoe. It is mounted on a vertical bar, iil, supported on its carrier, E2, so as to slide up or .lown thereon,` for adjustment as to height. It is dottedat Il, and slides on apin, E". It is supported vertically ony a two-leaved spring, E5, pivoted at E6 to the 4carrier E2, and'a'rranged to bear the lower leaf, on t cam, FF, on the shaft D.

The upper leaf, to which the said vertical plate is :lirectl y connected at its lower end, is supported above the lower one by an adjusting-screw, E", screwed through the upper leaf, and ou to the lower one. By turning this screw one way or the other, the feed-dog may be adjusted higher or lower.

The carrier E2-is curved, from a point alittle below the set-screw E4, to the left, around the cam-shaft, as learly shown-in fig. '3, to the shaft D1, directly below. the saidcam-shaft. Here it is joined to a curved arm, F, projecting at equal distances from the said shaft, and provided with notches F1 in the ends.

'A In front of this carrier is an inverted. V-shaped frame, F2, pivoted at F3 to a vertically-sliding bar, F, working up anddown on the bracket F5, and this bar is confined to the said bracket by a pin, F6, projecting through a slot in the bracket.

This sliding bar Fi comes in contact, at its foot,` with eccentric cam Fl; also, on the shaft B2, which throws simultaneously with the'cam E".

The lower ends of the arms of the frame F2 are connected by a curved bar, F, provided with a'stud, F2, projecting through the bottom F10 of the case.

rlhe arms F2 are provided, a short distance above the bar F, with stud-pins H, permanently attached, and projecting from each side. On therear side these pins have heads, standing about the distance of the thickness of the bar Ffrom the arms F2.

este@ On the front side of these arms F? is a spring, Hl, fixed to the shaft D1, and projecting each way from the shaft a little further than the arm F. Each end is bent into the V-forni, shown at H2, and presses upon thefront projections of one of the stud-pins H.

By means of this frame, the slide Fi, cam lli, and a bent adj listing-arm Hf H4, pivoted to the under side lof the table at H5, and provided with au adjustingscrew, HT, the--feedshoe is operated to feed in either direction, and the amount of feed adjusted as required, in the following way The inverted V-shaped frame F2 may be moved on the axis FJ so as to bring either ofthe pins ll into its respective notch on the end of the plate F, where it is held by the bent V-shaped ends of the spring H1, which springs over the pin, the other pin at the same time esca-pin g from it-s notchand from' the spring, when that side so engaged with the arm F, (which, as shown in the drawings, fig. 3, in the right side,) willon being raised by the cam FT, and slide F4, raise that end ofthe curved bai F, oscillating it on' the axis D, throwing the feed-shoe to the left. rlhe said shoe is also raised at the same time. to bring it into contact with the cloth, by its cam '4" and slide El.

' If it be required to feed inthe opposite direct-ion, the invert'ed V-shaped frame F2 is moved to the right, to disengage the pin atthe right with the bars F2, and engage the other pin at the other end; then, when the said frame is raised, the shoe will be moved to feed to the right.

'lhe amount of the movementofthe feed-sboe is governed by the bent arm H3 H, the part H3 of which takes under the stud-pin Fs, and arrests it in' the downward movement a greater or less distance from the cam F7, which correspondingly limits the oscillation of the bar F and the throw of the feed-arm E2.

The height of the feed-shoe, or the vertical movement thereof, is not dependent on the movement of the arm F.

The presser I slides in avertical slot in the head of the needle-arm support, and is provided with a rod, 11, and passing through a hole above the same to the top, where a square socket, I2, is formed.

I is a square finger-piece attached to the said rod, and fitting in said socket, and which is capable of turning when raised ont of the socket. `When so turned, it will rest on the top walls ofthe socket, and in this way the presser is held out of acilion, when required, against the action of the spiral spring l, in the socket which presses it down.

K is a tension-spring, provided with the verticallyprojecting ends, having points K1, for taking into the hole in the bobbin at each end, and having a rightal'id-le'ft threaded screw, K2, for moving thc said points t0 or from 4each other. rlhe lower part of the springs is connected at K:l to the needle-arm support, and the screw is` provided with a disk, K", working in a grooved friction-block, K5, to prevent it from being turned by the jarring of the machine.

L represents a spooling-device, consisting of a stock projecting through the table, and supportinga groovcd pulley, L1, at the bottom, and another, L2,. at the top. The upper pulley has a spindle, to which the spool L3 may be connected by one end, so as to be turned by it, the other end being supported in an arm, L, of the stock. A cord is fixed on the grooved pulleys, and the lower one `is allowed to rest on the frictionwheel Bl, which may be worked in the direct-ion to slip the clutch-Bll for spooling.

When the spinning-device, is not required for use, it may be raised out ofcox'it-act with the wheels B7.

Having thus described my invention,

What L claim as new, and desire to secure by Letters Patent isl. The combination of the treadle A and cla-mp A2,

with the frame, so that the treadle may be adjusted 2. The arrangement of the hinged supporting-fmme B, the cam-dog B3, and the spring B, substantially as specified.

3. lhe combination and arrangement of the vertically-adjustable driving friction-wheel A, loose frietion-wheel B", ratchet-clutch B, spring B12, fly-wheel B13, friction-lever B, rod Bl", and finger-presser B, all substantially as specified.

4. Theeombination, with the shuttle, of the'tensionspring D, set-screw Df, and guards D, when arranged substantiallyas specified.

f 5. The combination of the feed-shoe E, veiticallysliding plate El, adjusting-spring E5, set-screw E, carrier E, and cam ET, all substantiallyas specified.

6. The combination, with the feed-carrier E2 and notched bar F, of the inverted V-shaped frame F2,

stud-pins H, spring Hl, vert-ical slide F, and cam F", all substantially as specified.

7. The combination, with the vertical slide F* and stud-pin Fs, of the.bent arm H3 H, and adjustingscrew H7, substantially as speci-fied.

8. The combination, with the tension-spring K, pro'-

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