812
THE NEW ZEALAND GAZETTE.
[No. 27

trator, a table, a lifting-rod, a disc on the rod engaging with
the under side of the table near the centre, a roller carried
by the rod, the inclined plate for engaging with the roller,
and the screw-rod for adjusting the plate, substantially as
specified.
(Specification, 5s.; drawings, 4s.)

No. 13814.—11th July, 1901.—DIXON OATLEY, of Ren-
wicktown, Marlborough, New Zealand, Bootmaker. Double-
grip lasting-pincers.*

Claim.—The fulcrum A being attached to the lower
handle B and upper jaw C, instead of being attached to the
upper handle and lower jaw, as in the old style of lasting-
pincers.
(Specification, 1s.; drawings, 1s.)

No. 14287.—28th November, 1901.—EDWARD COLSTON
LOVELL, of 109, Chesterfield Road, Ashley Down Road,
Bristol, England, Engineer. Improvements in paper-bag-
making machines.

Claims.—(1.) A split rotated die of the form shown in the
drawings, and the die forming a gripper, as described and
shown. (2.) The combination with a rotated split die of a
rotated folder, cut as shown and described, and for the pur-
pose named. (3.) The combination with a split die, as de-
scribed, of a discharging-rod reciprocated through the said
die, as shown and described. (4.) The combination with a
rotated split die, as described, and a rotated folder, as de-
scribed, of an oscillated presser of the form shown and de-
scribed. (5.) The combination with a rotated split die, as
described, of a hinged feed-plate, as shown and described.
(6.) The combination with a rotated split die of a receiver,
lever-fitted as shown, a shallow tray with hinged sides and
end, also lever-fitted, and the said parts operated by a ver-
tically moved cam-rod, as shown and set forth, and for the
purpose named. (7.) The combination with a receiver, de-
scribed, of a vertically operated plunger made in two parts
as shown, one part sliding horizontally upon the other, and
both parts guided vertically and cam-operated, substantially
as shown. (8.) The combination with a pivoted receiver
and a vertically and horizontally operated plunger and
shallow tray, as described, of a pair of rolls, as shown, and
for the purpose named. (9.) The combination with a shallow
tray, with hinged sides, as shown, of a spring-mounted flap
at the end of the tray, as shown and described.
(Specification, 16s.; drawings, 5s.)

No. 14303.—29th November, 1901.—THOMAS FARRER, of
Mount Eden Road, Auckland, New Zealand, Watchmaker.
An improved window-fastener.*

Claim.—In a window-fastener of the kind described, in
combination, a circularly-shaped plate having its centre
raised, a handle connected thereto, a hole bored in said
plate near to its periphery and considerably out of centre,
longitudinally or circularly shaped plates having recesses
therein for engaging said circularly-shaped plate working
eccentrically from said hole when connected to the lower
and upper sashes in the manner shown, all for the purpose
set forth, substantially as specified.
(Specification, 3s. 3d.; drawings, 1s.)

No. 14550.—21st February, 1902.—THE AMERICAN MA-
CHINE TELEPHONE COMPANY, LIMITED, a corporation duly
organized under the laws of the Dominion of Canada, and
having an office at Brantford, Ontario, Canada, and also on
Wayne Street, Piqua, Ohio, United States of America
(assignees of George William Lorimer, of Piqua aforesaid,
Electrician, acting for himself and as administrator of the
estate of James Hoyt Lorimer, late of Piqua aforesaid, de-
ceased). Automatic telephone exchange.

Extract from Specification.—This invention relates to that
class of apparatus known as automatic exchanges, whereby
any one of a number of substations—such, for instance, as
telephone-subscribers’ stations—may be put in electrical con-
nection with any other substation, without requiring the ser-
vices of central-office operators, through the automatic
operation of central-office apparatus common to the sub-
stations, and controlled by them over wires or circuits con-
necting said substations with the central office. The object
of the invention is to simplify and cheapen the apparatus, to
make the same more reliable, and particularly to permit the
system to be extended to serve a large number of substations
without complicating the apparatus or increasing the num-
ber of connections and contacts, and the expense of con-
struction, to a prohibitory degree, as is the case with systems
of automatic exchange heretofore devised. In the present
invention the exchange is divided into sections, to each of
which are assigned and connected a particular number of the
whole number of substations to be accommodated, and upon
each section there is provided a number of sets of apparatus,
which are normally idle or out of use, and constitute prac-
tically duplicates of one another, all adapted alike to be used
by any one of the substations of the section for effecting con-
nection with another substation on the same or on any other
section. In practice as many sets or divisions of such dupli-
cate connecting apparatus are employed as may be necessary
to permit the maximum number of substations of the sec-
tion to be accommodated that will probably desire to use the
exchange at the same time. Experience having demon-
strated that the maximum is, under ordinary commercial
conditions, from seven to ten simultaneous connections,
there would be provided in each section from seven to ten
duplicate sets or divisions of connecting apparatus, although
a greater or less number of sets or divisions might be used,
depending upon the number of subscribers assigned to each
section, or the number of simultaneous connections that will
be probably required. In the following description the term
“connector” is used to mean an electric switching-device
comprising suitable fixed contacts in which a number of
lines or circuits terminate, and suitable adjustable brushes
adapted to be moved over said contacts and to be brought to
rest in position upon one or more of them belonging to one of
said lines or circuits. Each of the sets or divisions of apparatus
embraced in one section comprises the following principal
parts, to wit: (1.) A device termed “secondary connector,”
in whose contact-points all the lines of the section are repre-
sented, and which is employed for the purpose of establish-
ing connection with any line of the section upon which it is
located when the said line is called from some other line,
the adjustable brushes or members of said connector being
in connection, through suitable wires or circuits, not only
with an interconnector in all the divisions or sets of
apparatus in the same section, but with the similar appa-
ratus in all the sets or divisions of all other sections.
(2.) A device termed “interconnector” on each division,
having contacts representing or joined not only to the
secondary connector in the same division but in all other
divisions of the same and all other sections, and having its
adjustable brushes normally out of connection with the wires
leading to the secondary connector, but in suitable connec-
tion with devices or circuits whereby connection may be
established from any one of the wires or lines of the whole
section to said brushes. (3.) Each division contains also,
preferably, a device termed “primary connector,” in whose
contacts all the lines of a section are represented, while its
brushes are capable of being placed in connection with the
brushes of the interconnector, so that any calling line of a
section with which connection is established by a primary
connector may, through said primary connector and the
interconnector in the same division, be placed in connection
with the wire or circuit leading to an idle secondary con-
necter on some one of the divisions of the same section, or, if
the called subscriber be on another section, then with some
one of the circuits leading to the primary connectors in the
various divisions of such other section. Each of the several
sets or divisions on each section contains also a device termed
“rotary switch” for changing the connections of various
parts of the apparatus in the same division with it at various
stages of the operation; and a device termed “signal-trans-
mitter controller,” designed for use in conjunction with the
particular kind of transmitting apparatus which is herein-
after described, and which it is preferred to use for the
purpose of automatically transmitting the number of the
subscriber to be called, and for causing the signal to operate
upon the central office apparatus in the required manner.
Also in each division there are certain relays termed “signal
relay,” “release relay,” “ringing relay,” &c., and a device
termed “thousands register” which is employed when the
exchange embraces more than a certain number of sections,
say ten. These terms are used only for convenience of de-
scription. Some of the functions assigned in the following
description to certain parts might be performed by other parts.
On each section, and for the common use of all the sub-
scribers thereof, there are devices termed “decimal indi-
cator,” “decimal register controller,” and “division starter.”
The decimal indicator and division starter operate in con-
junction to enable any line of the section to seize upon an
idle division of connecting apparatus before described, and
the decimal indicator also serves in conjunction with the
decimal register controller to automatically adjust the
primary connector in the division seized so that it shall
establish connection from the calling line to the inter-
connector in the same division. Each section of this
improved automatic exchange constitutes by itself a com-
plete unit that can be used by itself as an exchange for a
hundred subscribers, or in connection with other sections
may be used for an exchange of as many hundreds of sub-
stations as there are sections. For an exchange of a
thousand substations no addition to each of the ten unit
sections employed would be required. When the exchange