Year: 1890

page_text: a cam-rider O, and operating connections between the said rider O* and the slide N
whereby the said slide and hence the clamp-carriage are reciprocated continuously,
substantially as set forth.
12. In a button-hole sewing machine, the combination, with a framework, having
guide-ways B2 and a driving mechanism, of a slide N having guide-ways N¹ and
working in the guide-ways B³, mechanism whereby the slide N is reciprocated on
the guide-ways B2, a driven shaft O, carrying a cam-wheel P, a cam-rider P³, a
cam P¹ mounted to revolve on the reciprocatory slide N, operating connections
between the cam-rider P2 and the cam P12, whereby the latter is revolved on the
slide N while moving therewith, a slide M working in the guide-ways N' of the
slide N, a cam-follower P acted upon by the cam P2 and operating connections
between the slide M and the cam-follower P" whereby the slide M is reciprocated
in the guide-ways N', the slide N, and a clamp-carriage carried by the slide M in
said movement, whereby the said clamp-carriage is given an intermittent shifting
motion, substantially as set forth.
13. In a button-hole sewing machine, the combination, with a framework having
guide-ways B2 and a driving mechanism, of a slide N having guide-ways N¹ and
working on the guide-ways B², mechanism whereby the slide N is reciprocated
thereon, a slide M having guide-ways and working on the guide-ways N¹ of the
slide N, and mechanism whereby the slide M is alternately shifted thereon, a clamp-
carriage working on the guide-ways L' of the slide M, a driven-shaft O, a cam Q
mounted to turn on the slide N, operating connections between the driven-shaft O
and said cam Q whereby the latter is rotated, a cam-follower Q2, and operating
connections between the said cam-follower Q2 and the clamp-carriage whereby the
latter is reciprocated on the guide-ways L' of the slide M, substantially as set
forth.
14. In a multiple-button-hole sewing machine, the combination, substantially as
hereinbefore set forth, of a plurality of stitch-forming mechanisms, arranged side by
side, their work-clamps and driving shafts, means for operating said driving shafts
in unison, a carriage holding the several work-clamps, and a button-hole feed
mechanism connected to the clamp-carriage and adapted to vibrate the clamps
rapidly, to form the zig-zag side stitches, in a direction transverse to the respective
driving shafts and to reciprocate the clamps to feed the work lengthwise of the
button-hole, in a direction parallel to the driving shafts so that any number of
button-holes may be formed side by side.
15. In a multiple-button-hole sewing machine, the combination, substantially as
hereinbefore set forth, of a plurality of stitch-forming mechanisms arranged side by
side, their work-clamps and driving shafts, a carriage holding the several work-
clamps, and a button-hole feed mechanism, to operate the clamp-carriage, and a
cam-shaft to drive the button-hole feed mechanism extending transversely to the
said driving shafts.
16. In a multiple-button-hole sewing machine, the combination, substantially as
hereinbefore set forth, of a plurality of stitch-forming mechanisms, their work-
clamps, a button-hole feed-mechanism comprising a transversely vibrating guide-
plate, and a U-shaped carriage mounted to reciprocate longitudinally on said
guide-plate, and having a bar connecting its upright arms, on which bar the clamps
are held.
17. In a multiple-button-hole sewing machine, the combination, substantially as
herein before set forth, of a framework a plurality of stitch-forming mechanisms,
adjustable relatively to each other on said framework, their work-clamps, a button-
hole feed mechanism, and a carriage operated thereby having a transverse bar on
which the work-clamps are mounted to slide laterally for adjustment.
18. In a multiple-button-hole sewing machine, the combination, substantially as
hereinbefore set forth, of a plurality of stitch-forming mechanisms, their work-
clamps, a button-hole feed-mechanism, a U-shaped carriage operated by the same
and having a bar connecting its upright arms on which the several clamps are held,