US1011957A - Sewing-machine ruffler. - Google Patents

Description

F. L. HUMESTON. Y

SEWING MACHINE RUFFLER.

APPLICATION FILED MAY 3, 1911.

Patented Dec. 19, 1911.

COLUMBIA PLANOGRAPH co., WASHINGTON, D c.

FREDERI ay concern:

at I, FREDERICK L. HUMES- the United States, residing TON, a citi I at New H the county of New Haven and State 1 nnecticut, have invented or discovere 11 new and useful Improvements in y 'NIachine Rufllers, of which the follo s a specification, reference being ha ein to the accompanying drawings.

This ini relates to that class of sewing mach ers in which the ruffling ted from the needle-bars of uch a manner that the fori I e ruffling blades are effected rd movements of the operatcted with the needle-bars of a ines, and in which the backof the rufiiing blades take downward movementsof blades ar 5 g machines as now made the timed as to complete their 5 movements after the needle- ;1 need their downward moveperation of sewing machine machines it is desirable that ard throws of the rufliing our simultaneously with or tch-tightening movements, eedle thread is held someherwise the rufliing operaerformed in the best manhe present invention comf: mprovements in ruiflers of ich the forward strokes of i s are effected at the upward 1 operating levers connected with the lo ars of the machines, and the invention proved m hereby, after the main forward mo of a ruifling blade has been effected d i I he upward movement of the operating with a sewing machine slight additional forward 5 Q be imparted to the ruffling first part of the downward e operating lever with the e the backward movement lade will be efiected during f the downward movement of er with the needle-bar. By

needle-ba l Specification of Letters Patent.

Application filed May 3, 1911.

er the take-ups have comr its object to provide im-' ED STATES PATENT OFFICE.

UM ESTON, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE GREIST FACTURING COMPANY, A CORPORATION OF CONNECTICUT.

SEWING-MACHINE RUFFLER.

Patented Dec. 19, 1911.

Serial No. 624,802.

thus changing the timing of the rufliing blade the rufHer will be best adapted for cooperation with a sewing machine in which the take-up completes its stitch-tightening movement after the needle has commenced to descend for the next succeeding stitch.

The present improvement comprises an additional lever between the operating lever and the rufiiing blade carrier and which additional lever so cooperates with a yielding cam projection or tooth carried by the operating lever that after the forward movement of the rufiling blade has been mainly effected during the upward movement of the operating lever with the needle-bar of the machine,

the said additional lever will be caused to In the accompanying drawings Figures 1' and 2 are opposite side views of a sewing machine rutHer embodying the present invention. Fig. 3 is a rear view of the same, and Figs. 4 and 5 are detail views showing the parts to which the present improvement more particularly relates, and with said parts in different positions.

The present invention is herein shown as being applied to a five-stitch ruflier such as that shown and described in the Greist and Beckert Patent No.- 983,048, dated Jan. 31, 1911, but it will be understood that this invention may be embodied in other kinds of rufflers than the five-stitch ruffler referred to.

Referring to the drawings, 12 denotes the body of the frame of the rufller, and which frame is preferably provided with an integral attaching portion or shank 13 by which it may be secured to the presser-bar of a sewing machine in substitution of an ordinary presser-foot. The forked operating lever 14 is pivotally mounted on a stud 15 riveted to an upright portion of the frame 12. Also pivotally mounted on the said stud are an oscillating plate 16, a-

the operating lever 14:, said lever carrying a second pawl 23 which may be thrown into engagement with the teeth of the ratchet wheel 21 when five-stitch ruffling is to be done, and by means of this double pawl construction a ruffle may be made at each stitch of the machine, or at each five stitches, according to the adjustment of said pawls, as fully described in the application of Emanuel J. Boyler, No. 601,905, filed Jan. 10, 1911.

In the ruifler of Patent No. 983,048, hereinbefore referred to, the entire forward movement of the rutlling blade is effected during the upward movement of the forked operating lever 14, which is actuated from the needle-bar of the sewing machine. In the present improved rufHer the main part of the forward movement of the milling blade is effected during the upward move ment of the operating lever 14, but after the upward movement of said lever 1 1 wit-h the needle-bar has been completed, and when the said lever commences its downward movement with the needle-bar, an additional forward movement is imparted to the ruflling blade carrier by means of a lever 25 fulcrumed on a pin 26 and forked at its lower end to embrace the pin 27 by which the pendulous lever 18 is jointed to the ruffling blade carrier 19. The said lever 25 is provided at its upper end with a tooth or cam projection 29 having an abrupt front face, and the operating lever 1 1 is provided near its fulcrum or pivot with a yielding tooth or cam projection 30 having an abrupt rear face. The yielding tooth or cam projection 30 is carried by a pawl or small lever 31 mounted in the rear portion of the operating lever 14 and pressed downward by a coil spring 28. During the upward movement of the operating lever 14 the cam projection 30 carried by the said operating lever rides over the tooth or cam projection 29 on the upper end of the lever 25, said tooth or cam projection 30 yielding upward against the stress of the coil spring 28, so as to pass by the said tooth or cam projection 29. hen, however, the operating lever 14 has nearly reached the limit of its upward movement the cam projection 30 thereon passes by the cam projection 29 on the lever 25, so that when the said lever 14 commences its downward movement the abrupt faces of the cam projections 29 and 30 will be in contact, thus causing the operating lever to impart,n through the said lever 25, a slight additional forward movement to the rufiiing blade carrier; but as soon as, in the downward movement of the operating lever 14, the tooth or cam projection 30 on said lever passes by the tooth or cam projection 29 on the lever 25 the forward move ment of the ruflling blade carrier ceases and the backward movement thereof is effected from said operating lever 14 through the connections such as are described in said Patent No. 983,018, hereinbefore referred to.

From the foregoing it will be apparent that the provision of the lever 25 and its operating cam projection 29, in cooperation with the yielding cam projection 30 carried by the operating lever 14 enable the final forward movements of the ru'lliing blade to be effected during the first part of the descent of the operating lever lt with the needle-bar, instead of having said forward movements fully completed at the up ward movements of the needle-bar, as in similar rufllers heretofore made. From this it results that, in the operation of the improved rul'l'ler, the forward movements of the ruitling blade will be completed at the time when the needle thread is held taut by the take-up, as hereinbefore stated.

I do not herein claim broadly the combination, in a sewing machine rutller, of an operating lever so connected with the ruffling blade carrier as to impart a forward movement to said rufliing blade on the upward movement of said operating lever with the needle-bar of the machine, and means for imparting an additional forward movement to said rufliing blade during the first part of the downward movement of said operating lever with the needle-bar; as such combination, broadly considered, is the in vention of Emanuel J. Boyler, and is claimed in his application Serial No. 602,387, filed January 12, 1911, the present invention being an improvement upon the rutHer of the said Boyler application.

Having thus described my invention I claim and desire to secure by Letters Patent:

1. In a sewing machine ruffier, the combination with an operating lever adapted to be actuated from the needle-bar of a sewing machine and provided near its fulcrum with a yielding tooth or cam projection, of a ruffling blade, a rufliing blade carrier, means for imparting a forward movement to said ruffiing blade and its carrier during the upward movement of the said operating lever, and an auxiliary lever actuated from said operating lever and having a tooth or cam projection cooperating with the yielding tooth or cam projection carried by said operating lever, whereby the last part of the forward movement of the rufliing blade may be effected durmg the first part of the downward movements of said operating lever.

2. In a sewing machine ruffier, the combination with an operating lever adapted to be actuated from the needle-bar of a sewing machine, and a yielding tooth or cam projection carried by said operating lever, of a ruftling blade, a ruftling blade carrier, a pendulous lever actuated from said operating lever and connected with said rufiling blade car impart a forward movement to said a and blade during the upward m j t of said operating lever, and an a lever also connected with said with 3 y de carrier and provided with a tooth o a projection opposing the said yielding o cam projection carried by said ope lever; whereby, during the first part downward movement of said operatin r, an additional forward movemen J be imparted to said rufiiing blade an f arrier.

3. In a g machine ruflier, the combination W operating lever adapted to be actuated the needle-bar of a sewing machine, a I ufliing blade, a rufiling blade carrier, ulous lever actuated from said oper ever and connected with said rufliing a arrier to impart a forward moveme id carrier and blade during Copies of the npwardmovement of said operating lever, a spring-pressed pawl or lever carried by said operating lever and having a tooth or cam projection, an auxiliary lever also connected with said rufiiing blade carrier and provided with a tooth or cam projection arranged so as to be opposed to and to cooperate with the said yielding tooth or cam projection carried by said operating lever; whereby, during the first part of the downward movement of said operating lever, an additional forward movement will be imparted to said ruflling blade and its carrier.

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

FRED. L. HUMESTON. Witnesses:

HUBERT M. GREIsT,

W. G. GREIST.

ent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G.

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