APRIL 2.] THE NEW ZEALAND GAZETTE. 937

moving the racks in the same direction, such means consisting in a screw either engaging a nut which is capable of being rotated in both directions or which is itself capable of being rotated in both directions so as to work through nuts formed in a bar or bars with which such screw is connected, and the opposite ends of which bar or bars bear respectively on the opposite ends of the racks, substantially as specified. (11.) In the arrangement set forth in claim 2, the means for simultaneously expanding the sections of one drum and contracting the sections of the other drum, consisting in a longitudinal shaft or rod carrying two pinions near each end, such rod being capable of sliding in its bearings so as to bring one or other of the pinions respectively into gear with two face wheels secured respectively to the parts of the drums serving to expand and contract the sections thereof, in combination with means for connecting such sliding rod or shaft to and disconnecting it from the actuating mechanism and enable it to be rotated in either direction, substantially as specified. (12.) The combination with the arrangement set forth in claims 1 and 2 of means for imparting the required movement to the arms carrying the pulleys or sprockets so as to expand or contract the drum or drums automatically, substantially as described.
(Specification, 17s. ; drawings, 5s.)

No. 16089.—12th March, 1903.—Dr. MAX HENIUS, of 294, South Water Street, Chicago, Cook, Illinois, United States of America. Improvements in or relating to mash-tuns and wort-separators.

Claims.—(1.) A convertible mash-tun and wort-separator characterized by a rotatably supported vessel having in its otherwise closed wall a strainer-covered opening normally uppermost whereby to retain the contents during the mashing operation, said vessel being invertible to bring the strainer-covered opening lowermost whereby to strain the wort, and a stirrer for the contents of the vessel mounted therein. (2.) The convertible mash-tun and wort-separator characterized by claim 1, having an inlet-opening in the vessel-wall for connection with a supply-pipe. (3.) The convertible mash-tun and wort-separator according to claim 1, in which the stirrer is a hollow shaft rotatably mounted in the vessel, and having a series of blade-carrying hollow stirrer-arms. (4.) The convertible mash-tun and wort-separator according to claims 1 and 3, in which the hollow stirrer-arms are equipped with check-valves. (5.) The convertible mash-tun and wort-separator shown and described.
(Specification, 6s. 6d. ; drawings, 2s.)

No. 16099.—18th March, 1903.—CORYDON WILLARD MUNSON, of 338, Huron Street, Toledo, Lucas, Ohio, United States of America, Manufacturer. Improvements in or relating to compressors for gaseous fluids.

Claims.—(1.) A compressor including in its construction a casing and a rotary carrier within the casing, and having hinged wings adapted to be closed by contact with the inner wall of the casing, and means for supplying oil to and through the compressor for sealing the joints between relatively movable parts of said compressor. (2.) A compressor including in its construction a casing and a rotary carrier within the casing, and having hinged wings adapted to be closed by contact with the inner wall of the casing, combined with an oil-reservoir having a valve-connection with the said casing, a reservoir for compressed fluid, an oil-cooler having a connection with said reservoir, a pressure-reducing valve in the last-named connection, and means for delivering oil from the cooler to the oil-reservoir. (3.) A compressor including in its construction a casing and a rotary carrier within the casing, and having hinged wings adapted to be closed by contact with the inner wall of the casing, combined with an oil-reservoir having a valved connection with the casing, a reservoir for compressed fluid, an oil-cooler having a connection with said reservoir, a pressure-reducing valve in the last-named connection, and means for delivering oil from the cooler to the oil-reservoir, and a float-controlled valve for regulating the supply of cool oil to the oil-reservoir according to the flow of oil from the oil-reservoir to the compressor. (4.) A compressor comprising in its construction a wing-carrier and an enclosing casing, one being rotatable relatively to the other, said carrier having an internal conduit and valved openings communicating therewith, a plurality of wings hinged to the carrier over said valved openings, said casing having an internal shape to cause the wings to successively close toward the carrier during the relative rotation of the casing and carrier, means for continuously admitting gaseous fluid to the casing, and means for continuously circulating oil through the compressor and cooling the oil outside of the compressor. (5.) A compressor comprising in its construction a wing-carrier and an enclosing casing, one being rotatable relatively to the other,

said carrier having an internal conduit and valved openings communicating therewith, a plurality of wings hinged to the carrier over said valved openings, said casing having an internal shape to cause the wings to successively close toward the carrier during the relative rotation of the casing and carrier, means for continuously admitting gaseous fluid to the casing, combined with a reservoir for receiving the compressed gaseous fluid, means for continuously supplying oil to the compressor-casing, means for permitting the escape of oil from said reservoir, means for cooling the oil, and connections for returning the oil to the compressor-casing. (6.) A compressor comprising in its construction a wing-carrier and an enclosing casing, one being rotatable relatively to the other, said carrier having an internal conduit and valved openings communicating therewith, a plurality of wings hinged to the carrier over said valved openings, said casing having an internal shape to cause the wings to successively close toward the carrier during the relative rotation of the casing and carrier, means for continuously admitting gaseous fluid to the casing, combined with a reservoir for receiving the compressed gaseous fluid, means for continuously supplying oil to the compressor-casing, means for permitting the escape of oil from said reservoir, means for cooling the oil, and connections for returning the oil to the compressor-casing, the compressor being provided with conduits for a cooling-fluid.
(Specification, 6s. ; drawings, 2s.)

No. 16100.—18th March, 1903.—COOLEY DEVELOPMENT COMPANY, a corporation organized under the laws of the State of Maine, and doing business at 83, Braintree Street, Boston, Suffolk, Massachusetts, United States of America (assignee of John Francis Cooley, of 667, Cambridge Street, Boston aforesaid, Mechanical Engineer.) Improvements in and relating to rotary fluid engines.

Claims.—(1.) In a rotary fluid machine, a cylinder having an internal bore, a rotary cam piston therein whose axis is parallel to the axis of said bore, a like-directionally rotating spacer between said piston and said bore in continuous contact at radially coincident and equiangularly spaced intervals with both bore and piston, and entrance and exit ports for fluids. (2.) In a rotary fluid machine, a cylinder having an internal bore, a rotary cam piston whose axis is parallel to the axis of said bore, a like-directionally rotating spacer between said piston and said bore in continuous contact at radially coincident and equiangularly spaced intervals with both bore and piston, and entrance and exit ports for fluids laterally situated in the bore of said cylinder to be opened and closed by said spacer. (3.) In a rotary fluid machine, a cylinder having an internal bore, a rotary cam piston therein whose axis is parallel to the axis of said bore, a like-directionally rotating spacer between said piston and said bore in continuous contact at radially coincident and equiangularly spaced intervals with both bore and piston, both piston and spacer rotating in the same direction at relatively constant but different rates of speed, and ports in the cylinder for the admission and exhaust of fluids. (4.) In a rotary fluid machine, a cylinder having an internal bore, a rotary cam piston therein whose axis is parallel to the axis of said bore, a like-directionally rotating spacer between said piston and said bore in continuous contact at radially coincident and equiangularly spaced intervals with both piston and bore, discs for supporting and enclosing the piston, said piston and spacer rotating in the same direction at relatively constant but different rates of speed, and ports in the cylinder controlled by said spacer for admitting and exhausting the fluids to and from the piston between said contact-points. (5.) In a rotary fluid machine, a cylinder having an internal bore, a rotary cam piston therein whose axis is parallel to the axis of said bore, a like-directionally rotating spacer open between said piston and said bore and in continuous contact at radially coincident and equiangularly spaced intervals with both bore and piston, and ports in the cylinder controlled by said spacer for admitting and exhausting the fluids to and from the piston between said contact-points. (6.) In a rotary fluid machine, a cylinder having an internal bore, a rotary cam piston therein whose axis is parallel to the axis of said bore and mounted on a shaft eccentric to said bore, cylinder-heads provided with eccentric bearings for said piston-shaft, a like-directionally rotating spacer between said piston and said bore in continuous contact at radially coincident and equiangularly spaced intervals with both bore and piston, and entrance and exit ports for the fluids between said contact-points. (7.) In a rotary fluid machine, a cylinder having an internal bore, a rotary cam piston therein whose axis is parallel to the axis of said bore and mounted on a shaft eccentric to said bore, cylinder-heads provided with eccentric bearings for said piston-shaft, a like-directionally rotating spacer between said piston and said bore in continuous contact at radially coincident and equiangularly spaced intervals with both bore and piston