Dec. 10.] THE NEW ZEALAND GAZETTE. 2565

as described. (5.) In a garment-form, the combination with an adjustable core of rigid material and spiral-spring neck-piece, an outer covering of flexible material and filling of soft material between said core and said outer casing, of arms removably secured thereto, and an adjustable neck, substantially as described.
(Specification, 7s.; drawing, 3s.)

No. 17223.—11th November, 1903.—GODFREY BENNINGTON JOHNSON, of 8, Victoria Street, Westminster, London, S.W., England, Engineer. Improvements in machinery for rolling sheet-metal strips to a curved or other section.

Claims.—(1.) A machine for longitudinally corrugating or fluting sheet-metal strips, consisting essentially of successive pairs of rolls positively driven at the same angular velocity, the central shaped portions of the rolls having circumferential salient and circumferential re-entering surfaces each matching the conversely shaped surface of the other roll of a pair, said shaped portions varying progressively for successive pairs but the maximum diameters of all the rolls being equal, whilst the minimum diameters progressively diminish for successive pairs of rolls whereof the axes are set progressively closer together as specified. (2.) A machine for longitudinally corrugating or fluting sheet-metal strips, consisting essentially of successive pairs of rolls positively driven at the same angular velocity, the rolls having central shaped portions and plain cylindrical end portions running in contact with each other, the shaped portions having circumferential salient and circumferential re-entering surfaces, those of each roll matching the conversely shaped surfaces of the other roll of the pair and varying progressively for successive pairs in such manner that the maximum diameters of all the rolls remain equal, whilst the minimum diameters progressively diminish for successive pairs of rolls, the diameters of the cylindrical end portions being equal for each pair but progressively diminishing for successive pairs of rolls and being so proportioned as to limit the approach of the shaped portions of the two rolls of a pair towards each other and preserve such clearance between them relatively to the thickness of the strip operated on as to prevent contact of the re-entering parts of either roll with the strip, as specified. (3.) A machine for longitudinally corrugating or fluting sheet-metal strips, consisting essentially of successive pairs of shaped rolls, the successive pairs of rolls being shaped progressively and being set with their axes progressively closer together and all positively driven at the same angular velocity in combination with pairs of lateral guide-rollers intermediate of successive pairs of shaping-rolls, the guide-rollers having their axes at right angles to those of the shaping-rolls, and the guide-rollers of successive pairs being set at progressively diminishing distances apart so as to be adapted each pair to receive the strip from the preceding pair of shaping-rolls, and by pressure against the edges of the strip to contract it laterally to an extent sufficient to prepare it for entry between the next succeeding pair of shaping-rolls, as described. (4.) In a machine for rolling sheet-metal strips to reversely curved or other forms in cross section, comprising pairs of revolving shaped rolls positively driven the two rolls of each pair at the same angular velocity, the combination of a pair of rolls each constructed of separate annular segments upon a positively driven shaft, the segments being of greater and of lesser diameter than the mean diameter of the rolls, the segments of the one roll matching those of the other, and the segments of each of a pair which differ in a certain respect from the mean diameter being fast on their shaft, whilst the segments which differ in the other respect are loose on their shaft. (5.) In a machine for rolling sheet-metal strips to reversely curved or other forms in cross section, comprising pairs of revolving shaped rolls positively driven the two rolls of each pair at the same angular velocity, the combination of a pair of rolls each constructed of separate annular segments upon a positively driven shaft, the segments being of greater and of lesser diameter than the mean diameter of the rolls, the segments of the one roll matching those of the other, and those of each roll which are of greater diameter than the mean diameter being fast on their shaft, whilst the others which are of less than the mean diameter are loose on their shaft, substantially as specified. (6.) In a machine for rolling sheet-metal strips reversely curved or other forms in cross section, comprising pairs of revolving shaped rolls positively driven the two rolls of each pair at the same angular velocity, the combination of a pair of rolls each constructed of separate annular segments upon a positively driven shaft, the segments being of greater and of lesser diameter than the mean diameter of the rolls, the segments of the one roll matching those of the other, and those of each roll which are of less than the mean diameter being fast on their shaft, whilst the others which are of greater than the mean diameter are loose on their shaft, sub-

stantially as specified. (7.) In a machine for rolling sheet metal strips to reversely curved or other forms in cross section, comprising pairs of revolving shaped rolls positively driven the two rolls of each pair at the same angular velocity, the combination of a pair of rolls each constructed of separate annular segments upon a positively driven shaft, the segments being of greater and of lesser diameter than the mean diameter of the rolls, the segments of the one roll matching those of the other, and the segments of each roll of a pair which differ in a certain respect from the mean diameter being fast on their shaft, whilst the segments which differ in the other respect are loose on their shaft, and of segments of a diameter equal to the mean diameter of the rolls and adapted to run in contact so as to limit the approach of the shaped portions of the rolls.
(Specification, 12s.; drawing, 5s.)

No. 17224.—11th November, 1903.—ROGER ARNULPH MONTGOMERIE, of Aberfeldie, Wanganui, New Zealand, Farmer. Improvements relating to fencing-wires.

Claim.—The combination with a fencing-wire composed of twisted strands of wire, of wire loops secured to said fencing-wire, substantially as and for the purposes specified and illustrated.
(Specification, 1s. 6d.; drawing, 1s.)

No. 17228.—12th November, 1903.—OLOF OHLSSON, of Storgatan, 14, Södertelge, Sweden, Engineer. Improvements in or relating to centrifugal machines or separators.

Claims.—(1.) An interior device or liner for centrifugal milk-separators or the like, comprising a series of plates or funnels placed one over the other in the direction of the drum’s axis, which plates or funnels are broken or bent circumferentially or broken or bent in a radial plane, and are provided with orifices such as 4 for the milk at the apices or at the highest point of the bends in order to hasten the motion of the milk axially through the liner. (2.) An interior device or liner of the kind described, comprising a series of plates or funnels having the form of pyramids, or plates, or funnels, corrugated in the direction of the circumference, and provided with orifices for the milk, placed at the apices or highest point of the bends, substantially as described. (3.) An interior device or liner of the kind described, comprising a series of plates having the form of contiguous cones (Figs. 3 and 4), or of plates corrugated in the radial plane, and with orifices placed in the line of contiguity between the cones or at the highest point of the corrugations, substantially as described. (4.) The complete interior device or liner for centrifugal separators, substantially as described, or illustrated in Figs. 1 and 2, or in Fig. 3, or in Fig. 4 of the drawings.
(Specification, 6s. 6d.; drawings, 2s.)

No. 17229.—12th November, 1903.—OLOF OHLSSON, of Storgatan, 14, Södertelge, Sweden, Engineer. Improvements in supporting and driving devices for rapidly rotating parts.

Claims.—(1.) A bearing and driving device for centrifugal machines and other rapidly rotating apparatus, wherein only one ball bearing is employed for the shaft, situated near the drum or other rotary part, beneath the latter, the drum and shaft in consequence of a certain mobility in or at the bearing being able for the purpose of centering to oscillate somewhat to the side around a point situated immediately beneath the bearing, the power-transmission to the shaft taking place at or near the point referred to, substantially as described. (2.) In a device of the kind described, a spherical sustaining and gliding surface for the bearing, intended to permit a slight lateral motion of the drum and its shaft, said surface forming part of a circle the centre of which is the point situated beneath the bearing where power-transmission to the shaft takes place, substantially as described. (3.) In a device of the kind described, worm gearing for driving the drum or other rotary part, the engagement between the worm and worm-wheel taking place at or near the point forming the centre of a circle of which the spherical gearing-surface forms a part, substantially as described. (4.) In a device of the kind described, a drum or other rotary part, a short shaft integral therewith, a bearing-sleeve holding said shaft frictionally, and a worm or other shaft secured to this sleeve, substantially as described. (5.) In a device of the kind described, a short worm or other driving shaft detachably secured to the drum or like shaft or to the sleeve, so that it can be easily removed and replaced,