April 16.] THE NEW ZEALAND GAZETTE. 1011

described. (4.) For preventing the side-slipping of motor-
cars, cycles, and the like, the use or employment of bands
constructed of links around the periphery of the wheels, sub-
stantially as described. (5.) For preventing the side-slip-
ping or skidding of motor-cars, cycles, and the like, the use
or employment of plates, studs, rivets, screws, teeth, or the
like, fastened to belts arranged around the periphery of the
wheels, substantially as described. (6.) The use of flexible
chain-like bands or of belts in conjunction with metal
plates, said bands or belts being put on a groove or grooves
formed around the periphery of tires for prevention of skid-
ding or side-slipping of motor-cars, cycles, and the like.
(Specification, 5s.; drawing, 3s.)

No. 16180.—3rd April, 1903.—THE VACUUM TIN SYNDI-
CATE, LIMITED, of Shannon Court, Bristol, England (assignee
of William Edward Watts Cates, of Shannon Court afore-
said, Engineer). Improvements in apparatus for exhausting
the air from cans and other receptacles adapted to be her-
metically closed.

Claims.—(1.) Apparatus for exhausting the air from cans
and other receptacles which after exhaustion are closed by
a lid held down by atmospheric pressure, comprising a re-
ceiver or bell for enclosing the can or receptacle to be ex-
hausted, a normally closed valve mounted on the receiver
and adapted to open it to the atmosphere, a table or support
on which the can and receiver rests during the exhausting
operation, an exhaust or vacuum cylinder communicating
with the receiver through the table or support, and means
controlled by a single operating-lever for lowering the
receiver on to the table and opening the exhaust con-
nection or for raising the receiver and, during the opera-
tion, or closing the exhaust, opening the valve in the
receiver, and raising the receiver from the table or sup-
port when the exhausting operation is completed. (2.) Ap-
paratus for exhausting the air from cans and other recep-
tacles which after exhaustion are closed by a lid held
down by atmospheric pressure, comprising a receiver or bell
for enclosing the can or receptacle to be exhausted, a nor-
mally closed valve mounted on the receiver and adapted to
open it to the atmosphere, a table or support on which the
can and receiver rest during the exhausting operation, an
exhaust or vacuum cylinder communicating with the receiver
through the table or support, levers mounted on the receiver
adjacent to the valve, a flexible connection attached to the
outer ends of the levers and passing over pulleys, a counter-
weight attached to the other end of the flexible connection
and adapted when free to pull on the levers and through
them to first open the valve and then raise the receiver, a
lever adapted to raise the counterweight and thus lower the
receiver, and a cock operated by said lever for opening and
closing the communication between the receiver and exhaust
cylinder. (3.) Apparatus for exhausting the air from cans
and other receptacles which after exhaustion are closed by a
lid held down by atmospheric pressure, comprising a receiver
or bell for enclosing the can or receptacle to be exhausted, a
valve-chamber mounted on the receiver, a hollow valve-
spindle mounted to slide vertically in the valve-chamber
and provided with perforations to admit air from the cham-
ber to the interior of the spindle and through it to the
receiver, a valve mounted on the spindle and normally closed
but capable of being operated to open the valve-chamber to
the atmosphere, spring arms mounted on the lower end of the
spindle and arranged to prevent the lid of the exhausted
receptacle becoming displaced during the exhausting of the
air and to force it into position when the exhaustion is com-
plete, a table or support for the receiver and exhausting
apparatus communicating with the receiver through the
table or support, substantially as described. (4.) Apparatus
for exhausting the air from cans and other receptacles which
after exhaustion are closed by a lid held down by atmospheric
pressure, comprising a receiver or bell for enclosing the can
or receptacle to be exhausted, a valve-chamber mounted on
the receiver, a hollow valve-spindle mounted to slide verti-
cally in the valve-chamber and provided with perforations to
admit air from the chamber to the interior of the spindle
and through it to the receiver, a valve mounted on the
spindle and normally closed but capable of being operated to
open the valve-chamber to the atmosphere, spring arms
mounted on the lower end of the spindle and arranged to
prevent the lid of the exhausted receptacle becoming dis-
placed during the exhausting of the air and to force it into
position when the exhaustion is complete, a table or support
for the receiver, an exhausting apparatus communicating
with the receiver through the table or support, and means
controlled by a single operating-lever for lowering the receiver
on to the table and opening the exhaust connection or closing
the exhaust, opening the valve in the receiver and raising
the receiver from the table or support when the exhausting
operation is completed.
(Specification, 7s. 6d.; drawings, 4s.)

No. 16185.—4th April, 1903.—WILLIAM MAYNE, of Kara-
doc Avenue, Mildura, Kara Karooc, Victoria, Engineer. An
improved engine valve-gear, by which the points of admis-
sion, cut-off, and release of high-pressure steam or other
motive fluid may be controlled.

Claims.—(1.) In an improved engine valve-gear, the
rotary disc valve a² provided with port-hole a³ and exhaust-
recess a⁴, working on circular exhaust-groove b, substantially
as and for the purposes set forth. (2.) In an improved
engine valve-gear, the conical chamber b³ in union with the
outer hollow plug valve d, with portion of its upper section
cut away and fitted with a worm wheel d², substantially as
and for the purposes set forth. (3.) In an improved engine
valve-gear, the inner solid plug-valve c, provided with two
wings or feathers c¹, and fitted with worm wheel c², substan-
tially as and for the purposes set forth. (4.) In an improved
engine valve-gear, the annular exhaust-port g¹, in union
with the two two-way cocks g², g³, and the passage g⁵, substan-
tially as and for the purposes set forth. (5.) In an improved
engine valve-gear, the general arrangement of the several
parts as illustrated in Figs. 1 to 8 on the sheets of drawings
1 and 2, substantially as and for the purposes set forth.
(Specification, 3s. 6d.; drawings, 2s.)

No. 16187.—4th April, 1903.—JAMES CHANNON, of "Paken-
ham," Hornsby, near Sydney, New South Wales, Baking-
powder Manufacturer (assignee of John Joseph Russell, of
Milton, New South Wales, Assistant Postmaster). Improve-
ments in seal locks specially applicable for strap-buckles, as of
mail-bags.

Claims.—(1.) In seal locks, the combination with a hinged
leaf or cover having a sliding-bolt thereon, and a socket in a
lock-box adapted to receive said sliding-bolt, of a chamber or
space between said bolt and said leaf or cover adapted to re-
ceive an easily destroyed ticket or seal, an aperture in said
top plate for holding said bolt in locked position, and devices
in or on said bolt whereby it may be operated through said
aperture. (2.) In seal locks, the combination with a hinged
leaf or cover and a sliding-bolt thereon such as 13, of a spring
such as 19, a nick such as 20 adapted to take in or on a ward
in or a rack in 11, a recess or chamber for containing a seal
ticket inwardly of said leaf or cover, an aperture such as 18 in
said leaf or cover, and operating devices in or on said bolt, sub-
stantially as described and illustrated. (3.) In seal locks, the
combination with a hinged leaf or cover having an aperture
therein and a sliding spring bolt thereon, of a casing such as
12 having guides for said sliding-bolt and distance pieces or
prints such as 16, so that a ticket or seal may be inserted be-
tween said bolt and said aperture in said leaf or cover, sub-
stantially as described and illustrated. (4.) A seal lock for
strap-buckles consisting of the combination or aggregation
together of the mechanical parts or integers, as and for the
purposes set forth, substantially as described, explained, and
illustrated.
(Specification, 3s.; drawings, 1s.)

No. 16192.—4th April, 1903.—JOHN MONTGOMERY, of
Christchurch, New Zealand, Farmer. An improved tie-
clip.

Claim.—A clip for neck-ties, the same consisting of a
frame of wire or like resilient material, formed with back-
wardly bent-up portions upon the bottom edge adapted to
pass up beneath the collar, and provided with short hooks
upon their top extremities adapted to hook upon the top
edge of the shirt neck-band, and a short spike upon the top of
the frame projecting inwards from the back face thereof, as
specified.
(Specification, 2s.; drawings, 1s.)

No. 16193.—4th April, 1903.—HENRY BLAND, of Ashley
Street, Waverley, near Sydney, New South Wales, Engi-
neer. Improvements in and relating to elastic-fluid com-
pressors.

Claims.—(1.) In apparatus for elastic-fluid compression,
the combination with a cylinder-head of a plunger fixed
thereto, a barrel for the plunger in a trunk piston, the
plunger having perforations leading to a central passage
therein for the purpose of spraying the volume of elastic
fluid under compression, substantially as described and ex-
plained, and illustrated in the drawings. (2.) In apparatus
for elastic-fluid compression, the combination with a cylinder-
head of a spiral groove or channel behind its lower face for
the circulation of the cooling medium, a neck on the said
head sliding within a stuffing-box to permit vertical move-
ment, an inlet-pipe and an outlet-pipe in said neck for the
cooling medium, substantially as described and explained,
and illustrated in the drawings. (3.) In apparatus for
elastic-fluid compression, the combination with a cylinder-