1504
THE NEW ZEALAND GAZETTE.
[No. 57

divisions with miniature ammunition is equal to the skill
required to place a shot in the corresponding divisions of the
full-sized target with full-sized ammunition, the dimensions
of said scoring-target being calculated from the mean of the
errors of the miniature ammunition which is obtained ex-
perimentally for a given miniature range, and the vertical
distance between the centres of the aiming-target and the
scoring-target being equal to the vertical distance between
the trajectory and the line of sight at their intersection with
the plane of the miniature target, as and for the purpose
specified. (6.) In a target for miniature ranges, the com-
bination with an aiming-target whose dimensions are in pro-
portion to the dimensions of the full-sized target inversely
as the distance to be represented of a scoring-target of
such size that the skill required to place a given number or
percentage of shots in any of its divisions with miniature
ammunition is equal to the skill required to place the same
number or percentage of shots in the corresponding division
of the full-sized target with full-sized ammunition, the
dimensions of said scoring-target being calculated from the
mean of the errors of the miniature ammunition which is
determined experimentally for a given miniature range,
and the vertical distance between the centres of the aiming-
target and the scoring-target being equal to the vertical
distance between the trajectory and the line of sight at their
intersection with the plane of the miniature-target, as and
for the purpose specified.
(Specification, 9s. ; drawings, 1s.)

No. 15069.—2nd July, 1902.—JAMES PURVIS, of 21, Great
St. Helen’s, London, England, Brickmaker, and THOMAS
ROUSE, of 7, Old Hill Street, Stamford Hill, Middlesex, Eng-
land, Gentleman. Improvements in the manufacture of
artificial stone.

Claims.—(1.) The described process for preparing lime con-
crete suited for the manufacture of artificial stone by mixing
the unslacked lime with sand, gravel, or fragments of stone
or other suitable hard material, and during the mixing
moistening the mixture with steam. (2.) The described pro-
cess for preparing cement concrete for the manufacture of
artificial stone by mixing Portland cement with sand, broken
or powdered granite, or other suitable hard material, with a
weak solution of water-glass, and subsequently exposing the
mixture to the action of steam gradually raised to 212° Fahr.,
and kept at that temperature for not less than fifty hours.
(3.) Artificial stone, in form of blocks, slabs, bricks, tiles, or
the like, made of lime concrete prepared as set forth in
claim 1 hereof, compressed in suitable moulds, and after re-
moval from the moulds exposed for several days to an atmos-
phere kept moist by steam. (4.) Artificial stone, in form of
blocks, slabs, bricks, tiles, or the like, made of cement con-
crete prepared as set forth in claim 2 hereof, compressed in
suitable moulds, and after removal from the moulds exposed
for several days to an atmosphere kept moist by steam, as
described in claim 2 hereof. (5.) Artificial stone blocks,
slabs, bricks, tiles, or the like, made of lime concrete pre-
pared as set forth in claim 1 hereof, and faced in the way de-
scribed on one or more sides with cement concrete prepared
as set forth in claim 2 hereof, the articles being moulded and
exposed as set forth in claims 3 and 4.
(Specification, 3s.)

No. 15070.—2nd July, 1902.—JAMES THOMAS HUNTER, of
Queen’s Chambers, Wellington, New Zealand, Engineer
(nominee of Benjamin Garver Lamme, of 230, Stratford
Avenue, Pittsburg, Pennsylvania, United States of America,
Electrical Engineer). Improvements in single-phase alter-
nating-current electric motors.

Claims.—(1.) A series-wound single-phase alternating-
current motor in which the field magnet ampere turns have
such a ratio to the armature ampere turns as will, with
a given value for the product of the number of poles multi-
plied by the normal maximum revolutions, develop a ratio of
field self-induction to armature counter electro-motive force
which does not exceed 50 per cent. (2.) A series-wound
single-phase alternating-current motor in which the arma-
ture self-induction is limited by closed conductors carried by
the field-magnet poles and interposed in the paths of the
lines of force of the armature self-induction in positions
approximately parallel to the general direction of the field
polarisation and approximately midway between the sides
of the respective poles. (3.) In a series-wound single-phase
alternating-current motor, an armature having a parallel
closed coil winding and leads between the armature coils
and the commutator-bars which are of such a resistance as to
reduce the secondary current in the short-circuited coils pro-
duced by the alternating magnetic field to substantially non-
sparking limits. (4.) Electric motors constructed sub-
stantially as described with reference to the drawings.
(Specification, £1 4s. ; drawings, 1s.)

No. 15071.—2nd July, 1902.—THE AMERICAN TOBACCO
COMPANY, a corporation organized and existing under the
laws of the State of New Jersey, having a place of business
at 111, Fifth Avenue, New York, United States of America
(assignees of Srul David Scholomowitsch Rakowitzky, and
Selman Srulewitsch Davidowitsch Rakowitzky, both of Vilna,
Russia). Machine for making cigarette-wrappers with
mouthpieces.

Extract from Specification.—This invention has for its
object to provide a machine which prepares directly from
the wrapper-and-mouthpiece paper a wrapper with mouth-
piece ready for the reception of the tobacco. This invention
consists in various combinations of devices, fully described
and pointed out in the claims. This machine operates gene-
rally in the following manner: First, a wrapper-tube is made
and its edges joined by the usual wrapper-making devices.
The finished wrapper-tube is cut by shears to the proper
length. The shears move forward in the cutting, so as to
make room for the succeeding wrapper-tube and to prevent
upsetting or squeezing of the latter. The cut wrapper-tube
is pushed in this moving of the shears to a conveying-device,
which guides the wrapper-tube forward for the introduction
of the mouthpiece and holds it during that operation, after
which the finished tube with mouthpiece is acted on by
devices which slightly unroll the mouthpiece to make it fit
the wrapper-tube snugly, and is then deposited into a box.
The paper serving for the preparation of the mouthpieces is
fed from a roll in a strip of a width to correspond to the
length of the mouthpiece. The paper is drawn off by rollers
moving at stated intervals. Shears cut a piece of predeter-
mined length off the paper roll, and a small stamping-appa-
ratus strikes out simultaneously from the one corner of this
paper-piece a number of fringes, which are intended to pre-
vent the admission of the tobacco into the mouthpiece, as
the fringes fold over with the subsequent rolling of the
mouthpiece-paper. The cut and fringed mouthpiece-paper
is then seized and rolled by a special device. In order to
prevent stuffing or choking of this device and a consequent
interruption of operation, if a paper-piece should be badly
rolled or is not seized by the rolling-mechanism, this
mechanism is provided with an ejector which throws out
the badly rolled paper-pieces which project and are not
seized by the rolling-device. The properly rolled mouthpiece
is received by an introducing-device and inserted into the
ready-prepared wrapper-tube and then is acted on and con-
veyed to the box, as before briefly indicated.

[NOTE.—The number and length of the claims in this case pre-
clude them from being printed, and the foregoing extract from the
specification is inserted instead.]
(Specification, £1 5s. ; drawings, 6s.)

No. 15072.—2nd July, 1902.—THE AMERICAN TOBACCO COM-
PANY, a corporation organized and existing under the laws of
the State of New Jersey, having a place of business at 111,
Fifth Avenue, New York, United States of America (assignees
of Srul David Scholomowitsch Rakowitzky, of Vilna, Russia).
Improvements in machines for inserting cotton in cigarette
wrapper-tubes.

Claims.—(1.) The combination of means for feeding cotton
to cutting-means, means for cutting off a portion of the cotton
fed thereto, and means for introducing such portion into a
wrapper-tube, substantially as described. (2.) The combina-
tion of means for feeding a sliver of cotton to clamping-
means, clamping-means for temporarily holding the end of
the sliver while the feeding-means are being withdrawn,
means for severing a portion of such sliver, and means for
inserting such portion into a wrapper-tube, substantially as de-
scribed. (3.) The combination of means for feeding a sliver
of cotton to clamping-means, with such clamping-means for
holding the end of the sliver while the feeding-means are
being withdrawn, and means for cutting off a portion of such
sliver, substantially as described. (4.) The combination of
means for feeding a sliver of cotton to clamping-means, with
such clamping-means for holding the end of the sliver while
the feeding-means are being withdrawn, means for cutting off
a portion of such sliver, means for inserting such portion
into a wrapper-tube, and means for doubling back such por-
tion upon itself before it is inserted in such wrapper-tube,
substantially as described. (5.) The combination of means
as trough 26 and spring 30 for feeding a sliver of cotton,
means as 40, 41, for temporarily holding the free end of the
sliver, means as shears 16, 18, for serving a portion of such
sliver, and means as a rod 32 for inserting such severed por-
tion into a wrapper-tube, substantially as described. (6.) The
combination of a reciprocating-trough 26 and spring 30, with
shears 16, 18, clamps 40, 41, a reciprocating-rod 32, and a
head having an aperture 48 in front of which the wrapper-
tube is held, substantially as described. (7.) The combina-
tion of a reciprocating-trough 26 and spring 30, shears 16, 18,