of Canada and Nova Scotia pay $500 on application.

_Pamphlets containing the Patent Laws and full particulars of the mode
of applying for Letters Patent, specifying size of model required,
and much other information useful to Inventors, may be had gratis by
addressing MUNN & CO., Publishers of the Scientific American, New York._

* * * * *


71,836.--MACHINE FOR NOTCHING KNITTING NEEDLES.--W. Aiken, Franklin,
N.H.

I claim 1st, The improved machine, substantially as described, for
effecting the several operations of notching, slotting, boring, and
burring a knitting machine needle blank, in the order and manner as
explained.

2d, Also, the combination of one or more vibratory clamps, Y, the cam,
E, and the two burrs or cutters, q r, for forming the notches in the
needle blank such clamp or clamps, cam and cutters being provided with
mechanism for operating them, substantially as described.

3d, Also the combination of one or more vibratory clamps Y, the cam, E,
the two burrs or cutter wheels, q r, and the slotting burr or cutters,
s, provided with mechanism for operating them substantially as
explained,

4th, Also, the combination of one or more rotary clamps, Y, the cam,
E, the burrs or cutter wheels, q r s, and the drill, u, provided with