132
THE NEW ZEALAND GAZETTE.
[No. 3

by means of a bell crank which is moved to normal position by a spring or the like, and is moved therefrom intermittently by pins on a revolvable drum having chutes by which potatoes and earth are tipped to the said rake. (3.) In a machine for harvesting potatoes, a series of curved forks, a series of tipping-chutes, pins on the chutes to clear the forks, pivoted bell-crank frames to support the chutes, projections or lugs on the frames, and striking-plates to be met by the said projections to tip the chutes, substantially as described. (4.) In a potato-harvesting machine, the combination with a transverse revolvable screen open at front and rear of a rotatable external roller or rollers and means to press the same against the screen for the purpose set forth. (5.) In a potato-harvesting machine, the combination with a helical conveyor screen adapted to raise potatoes and earth to one side and allow the same to fall back, of a shoot under one side of the screen to return to the trench material which falls through the screen. (6.) In a potato-harvester, a transverse screen having a helical conveyor, the front part of the periphery of the screen consisting of bars to allow soil through and the rear part of removable meshing adapted to allow through potatoes of predetermined size, and means to revolve the screen.

(Specification, 9s. ; drawing, 1s.)

No. 22138.—27th November, 1906.—FRANCIS ARTHUR RICH, of Remuera, Auckland, New Zealand, Engineer. An improved tacheometer.

Claims.—(1.) In the improved tacheometer specified, the telescope fitted with eye and object lenses, and having reflectors fixed within said telescope and the movable tangent scale placed on body of instrument in combination with the tacheometer for the purpose set forth, as described and illustrated. (2.) In the improved tacheometer covered by claim 1, the application thereto of the telescope fitted with eye and object lenses and having reflectors fixed within said telescope as specified for the purpose set forth, as described and illustrated. (3.) In the improved tacheometer covered by claim 1, the movable tangent scale placed on body of instrument fitted to be read from either end or from centre to either end for the purpose set forth, as described and illustrated.

(Specification, 3s. 6d. ; drawing, 1s.)

No. 22149.—3rd December, 1906.—JOHN HAMMIL DAVIDSON, of Christchurch, New Zealand, Insurance Agent. Marking device for use with tailors, dressmakers, or the like.

Claims.—(1.) The marking device for the purpose indicated, comprising a cylindrical stand, a bracket extending outwards from the stand and adapted to be moved around it, a curved board on the inner end of the bracket, a vertical frame upon the outer end of the bracket and carrying a marker adapted to engage with the outer face of the curved board, substantially as specified. (2.) In marking devices of the nature referred to in the preceding claim, a sliding block mounted on the vertical frame and adjustable thereon, a sleeve or barrel extending horizontally through a slotted aperture in the block and pivoted therein so as to be capable of a swinging movement in a horizontal plane, and a spring-controlled rod passing longitudinally through the barrel, having a chalk-grip at its inner end, substantially as specified. (3.) The marking device for use with tailors, dressmakers, or the like, substantially as described and explained and as illustrated in the drawings.

(Specification, 4s. 6d. ; drawing, 1s.)

No. 22152.—5th December, 1906.—WILLIAM MARTIN MAYBURY, and WILLIAM HENRY MAYBURY, both of Iona, Victoria, Australia, Farmers. Improvements in grading and screening apparatus for potatoes, onions, apples, and otherwise.

Claims.—(1.) In a grader, the combination of all parts described which are illustrated in figure 1. (2.) In a grader, the combination of all parts described which are illustrated in figure 4. (3.) In a grader having over suitable shoots an inclined adjustable cylindrical or polygonal revolvable screen having slats, the combination therewith of such cleansing material as rope, substantially as described, and the slats and coils being located to allow products of larger size to fall through the lower part of the screen than through the upper, and the screen being open at its lower end to discharge products too large to pass through the screen. (4.) In a revolvable grader-screen, open at both ends, locating in com-

bination with slats or the like, such material as rope, so that its surface shall project internally of the slats and act as set forth.

(Specification, 4s. 3d. ; drawing, 1s.)

No. 22153.—5th December, 1906.—OTTO RIEGELHUTH, of Ballarat East, Victoria, Australia, Jeweller. Improvements in electrical signalling devices.

Extract from Specification.—This invention relates to improvements in means for electrical signalling. It is applicable for fire-alarm services, or others in which any one of a large number of signals is to be transmitted. For example, it is suitable for railway working, and can be used by persons inexperienced in electrical apparatus, as by miners to transmit signals from underground to the surface. In mining, signals have to be sent (from below) to the engine-driver at the surface. Slow methods may answer in shallow workings, but for deep mining a quicker and simpler method is desirable than the use of, for example, a steel rope for “knocking”—and such ropes are expensive—and it is also desirable not only that men underground should be able to communicate with the engine-driver, but that the latter may be able to reply. I use insulated wires, and locate transmitting-boxes where required on, say, different mine-levels. Any particular signal of a predetermined series may be sent from any box, to be read in plain words on dials of the receiving and also the transmitting instruments. The miner, or sender, by pressing a button at a box causes the desired signal to appear in view of the engine-driver or other person receiving, and the latter can signal back to get the message repeated or to ask that the telephonic communication, when provided, be used. The telephones may be made to use the same line wires (as will be well understood) by cutting out the instruments. The means used for the said signals back are the establishing of one or more circuits by means of one or more plugs, which cause one or more shutters to fall at the transmitting-box in the mine, or as the case may be. In calling a fire-station from a street alarm-box, when my invention is employed, the sender will cause an indication to appear at the fire-station, in plain wording, showing the street-location of the alarm-box he has used, or any other predetermined information. He will move a pointer or indicator handle on a dial: that will cause a pointer to move to a corresponding position on the dial of the receiving instrument at the fire-station. My mechanism works on open circuits, no current flowing except during transmission of a signal. This system is more economical than those in which current is constantly flowing. Any number of transmission boxes can be incorporated in my arrangement.

[NOTE.—The above extract from the specification is inserted in place of the claims.]

(Specification, 4s. 9d. ; drawing, 2s.)

No. 22177.—10th December, 1906.—EDWIN HOWLETT, of Auckland, New Zealand, Upholsterer. Improvements in or relating to easy chairs.

Claims.—(1.) In chairs, an inclined underframe and a seat-frame hinged together at their forward edges, so that the seat-frame will extend back over the underframe, cushion springs interposed between their back edges, and means whereby such back edges may be locked at any desired distance apart, substantially as specified. (2.) In chairs of the class referred to in the preceding claim, a plate with apertures at intervals therein, extending upwards from the back edge of the underframe and passing freely through a slot formed in the back member of the seat-frame, a spring bolt passing transversely through such member and adapted to enter any one of the apertures in the plate or to be freed therefrom, and means for operating the bolt from the front of the chair, substantially as specified. (3.) The improvements in or relating to easy chairs, substantially as specified and explained, as illustrated in the drawings, and for the several purposes set forth.

(Specification, 3s. 9d. ; drawing, 1s.)

No. 22179.—10th February, 1906.—ROBERT BERESFORD, of 24 Merrial Street, Newcastle-under-Lyme, Stafford, England, Cycle-maker. Improvements for wheel-rims for inflated tires.

[NOTE.—This is an application under section 106 of the Act, the date given being the official date of the application in Great Britain.]

Claims.—(1.) In rims for pneumatic-tired wheels, the employment of a split or segmental and detachable tire-retaining ring having upon its inner side a seating for the edge of the tire-cover whilst its outer side is provided with a