US84959A - Improvement in sewing-machine - Google Patents

Description

N. MEYERS. SEWING MACHINE.

No. 84,9 59. Pat'ented Deo. 15, 1868.

latter, by, means of which the said needle receivesa glam. Ghtfiv g NwICHQLAiiME'YE Rs, OF

BUFFALO, NEW YORK.-

Letters Patent No. 84,959, dated December 15, 1868.

MROVEMENT m snwme-mcn'nm.

'l'ho Scheddle referred to in these Letters Pat ent making part of the same.

To all whom it may concern Be it known that I, NtcnoLns Mnrnns, of Buffalo, in the State of New vYork, have invented a new and useful Improvement in an Attachment for Producing the Grover 80 Baker Stitch from a Shuttle Sewing- Machine; and I do hereby declaie that the following is'a full, clear, and exact description of the same, reference' being had to the accompanying drawings, and letters of reference marked thereon, making a. part of thisspecification, in which' Figure 1 represents a plan view of my invention, the throat-plate supporting the curved needle, being snpposed to be transparent.

To enable those skilled in the art to make and use my invention, 1 now proceed to describe its construction and operation.-

Similar letters in the-drawings refer to like parts.

This invention consists in adapting, to a shuttle sewing-machine, a mechanism for producing the Grover. 85 Baker" stitch, the same being comppsed of a curved under needle, pivoted to theunder side of a plate, so as to be within the shuttle-race, and provided with a, spur, which is impinged against by projections from the shuttle-carrier, during the reciprocating motion of the vibratory motion on its axis, suitable to the formation, in connection with the upper needle, of the ordinary loop-stitch.

A represents a section of the cloth-table-of a sewingmachine. 7 V

A shuttle-race is seen at a, within which slides a, shuttle-carrier, b, which is here represented as devoid of a shuttle, and provided'with two pins, 7), one at-each. end.

B represents a metallic plate, let into the surface of the table A, crosswise of the shuttle-race a, and pro vided with an orifice,-'c, tln-ough which the upper needle may play. ,5

From a suitable point of the under side of theplate B extends downward a pin, (1, which serves as a pivot for the curved under needle 2.

The aforesaid needle is of the form shown, and has an eyenear' the point,'and another at a suitable distance back of the first, and it has a shank, cf, through which passes the pivot.

A portion of the shank e, nearest the plate B, is made twoaced, the faces being inclined to each other at an obtuse angle; and against one orthe other of said faces,.altcrnately presses the free end of a small springbzlr, h, the opposite end of the bar being confined in a stud, h, projecting from the under side of the plate B.

A spur, 1", projects from the shank 0-, parallel with the general direction of that part of the needle betweer sired to be produced, the shuttle is removed, and the plate B, with its described attachments, fitted to its proper place.

' The shuttle-carrier movement, as ,before, and each pin, 1), alternately strikes the spur c, by which means a vibratory-mo? tion of the needle on. its fixed axis is produced, such, motions being synchronous with the'proper motions of the upper vertical needle,to producethe. v

desired form of stitch, inthe well-known manner.

The functions of the spring-bar e are to'hcldthe curved needle in position between the impacts of the pins- 1). I

Having thus described my invention,- What I claim asnew, and desire to secure ters Patent, is-- The above-described loop-stitch attachment to a shuttle sewing-machine, consisting essentially of the shuttle-carrier I), provided with the pins 1) I the pivotedthread-carrier 8, provided with the spur 'i, and. the spring-bar h, when constructed as described, arranged in ashnttle-race, a, and combined to operate in the manner and for the purposes described. v

-NIUHOLAS MEYEBIS.

by Let- Witnesses:

vJno. O. ADAMS,

J onn A. Locxwoo'n.

I) continues its reciprocating

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