US1043097A - Sewing-machine ruffler. - Google Patents

Description

H. M. G-RBIST. SEWING MACHINE BUFPLER.

APPLIOATION FILED No.20 1910.

1,043,097. 7 1 Patented Nov. 5,191;

onrrnn STATES PATENT orrron.

HUBERT M. GREISI, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE GREIST MANU- FAGTURING COMPANY, OF NEW HAVEN, CONNECTICUT, A CORPORATION OF CON- snw'me-Macmnn aurrnnn;

Application filed December 20, 1910. Serial No. 598,275.

To all whom itgmay concern:

Be it known that I, HUBEBT;M.,GREIST, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented-or. discovered certain new and useful Improvements in Sewing-Machine Rufliers, of which the followlng 1s a specification, reference being had therein to the accompanying draw- HIU'S.

This invention relates to sewing machine rufllers and has for its object to provide a detachable attachment for a ruffimg blade to its carrier and which detachable attachment is of such construction as to permit the ruffling blade to be readily removed, in case it should become worn or bent when 1n use, so

7 that a new rufflcr blade may be readily 1n-v 4 said blade'is provided near its rear end with two holes adapted to receive two studs on the scrted in its place. It is impracticable to secure ruilling blades to their carriers by screws, owing to the fact that the screws are liable to work loose, and it has usually been the practice to permanently secure rufiiing blades to their carriers by means of rivets, so that it is practically impossible for the ordinary user to remove them, when bent or worn.- I

In accordance with the present improvement the rufiling blade is provided with a single, centrally-located keyhole slot to receive a headed rivet on the carrier, and the carrier, the said studs being preferably formed by being punched out of the stock of the carrier so as to "With this construction the head of the rivet may be inserted through the larger portion of the keyhole slot in the rufiiing blade and the said blade may then be drawn forward to bring the smaller portion of the keyhole slot into register with the shank of the rivet,

and also to bring the two holes in the rufiling blade into register with the studs on the carrier, when the thin, steel milling-blade will sprin and t e rufiling lade will then be securely attached to its carrier.

In the accompanying drawings Figure 1 is a top view of a rufilingfblade' and its carrier embodying the present invention. Fig. 2 is a bottcn'i view of the same. Figs. 3 and 4 are bottom views of the rufiing blade carbe integral therewith.

into enga ement with the said studs,

rier and milling-blade. respectively, detached from each other. Fig.5 is a longitudinal section on line 5-5, of Fig. 1.

Referring to the drawings, 12 denotes the rufiiing blade and 13 theruilling blade carrier. The ruffling blade is provided with a centrally-located keyhole slot 14, and is also provided, near its rear end,,with two small holes 15. The carrier 13 is provided with a permanently-attached rivet- 16 having a somewhat enlarged head which stands out from the bottom of the carrier a suiiicient distance so that the rufliing blade may be received between the head ofsaid rivet and the bottom of said carrier. The ruifiing blade carrier is also provided with two studs 17 preferably integral therewith, "and formed by partly punching out the stock of the carrier.

In applying the milling blade to its car rier the enlarged head of the rivet 16 is received in the larger portion of the keyhole slot 14 of the rufiing blade, and the latter is then drawn forward to cause the walls of thesmaller portion of said keyhole slot to embrace the shank of the said first and to brin .the holes 15, near the rear end of the ru ing blade, into register with the studs 17, when the said blade will spring onto said studsin such a manner as to permanently and securely attach the rufiing blade to its carrier. When it is desired to remove'the ruiliing blade from the carrier it is'only necessary to disengage the rear end of the ruffling blade from the studs 17 by inserting a pointed instrument, as a knife blade, between the rufiling blade and the carrier, so as to separate the parts slightly to disengage the studs 17 from the rullling blade, and the latter may then he slid rearward to bring the rivet 16 into register with the larger portion of the keyhole slot 14, when the rufiling blade will be entirely released.

I am aware that it has heretofore been proposed to removably attach milling blades to their carriers by means of keyhole slots,

rivets and pins. as shown and described in blade carrier, and

Patented Nov. 5, 1912.

the assignee of my invention the Parsons construction has been superseded by my' present improved construction which is not only cheaper to make, but provides a more accurate attachment, as well as one in which the rufiling blade may be more easily removed than with the Parsons construction.

Also, in the present improved construction,

by forming the studs 17 simply by punch- I ing out the stock of the carrier, the use of a separate attaching pin, as provided for by the Parsons construction, is obviated.

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

In a sewing machine rufiler, the combination with a rufliing blade carrier provided 20 with a. centrally-disposed rivet and two integral or struck-out studs, of a rufiiing blade provided with a centrally disposed keyhole slot, to register wit said rivet, and with two holes near its rear end arranged to 25 register with said studs.

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

HUBERT M. GREIsT; Witnessesz WV. C. GREIS'I, GEO. H. BEEBE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. q.

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