March 28, 1913. THE COLLIERY GUARDIAN. 665 ABSTRACTS OF PATEHT SPECIFICATIO1S RECEHTLY ACCEPTED. 2130. (1912). Improvements in and relating to Turbine Installations. The Hon. Sir C. A. Parsons, K.C.B., of Heaton Works, Newcastle-on-Tyne.—This invention consists in a turbine installation in which a condenser situated below a turbine is directly attached to the casing of the latter. One method of carrying the invention into effect is described, by way of example, as applied to a turbine instal- lation suitable for driving eleotric machinery, and having a high-pressure and a low-pressure turbine mounted upon the same line of shafting as an electric generator. The low- pressure turbine a, which alone is illustrated in the accom- panying drawing, is situated between the high-pressure turbine and the generator, and is supported partly by the foundation b of the high-pressure turbine and partly by the foundation c of the generator. Steam exhausted from the high-pressure turbine enters the turbine a through side inlets, one of which is shown at d, and, after flowing in opposite directions through the turbine, is discharged through exhaust passages f and g, which unite in a single eduction pipe h. The latter is formed integral with the turbine casing, and conducts the exhaust steam to a con- denser or to a pipe by which the condenser can be auto- matically by-passed in a known manner, and the exhaust steam delivered to a still lower pressure turbine, hot well or the atmosphere as desired. The eduction pipe h, forming part of the turbine casing, projects downwards between the foundations b and c into a space capable of accommodating a large main condenser k. According to the invention, the condenser k is bolted or otherwise rigidly attached to the downwardly projecting eduction pipe h, and thus forms part of the turbine casing structure. The expansion due to heat is accommodated by the natural spring in the water and air pipes to and from the condenser, such pipes being provided with expansible joints in most cases. A suitable condenser is that illustrated, in which the entering exhaust steam impinges upon two nests of condenser tubes, one of which is shown in section at I, and thereafter upon two further nests of tubes m situated at a lower level, after which the water of condensation is withdrawn through openings n in the usual manner. The tubes in the upper nests I are arranged at the corners of squares, while those in the lower nests m, in addition to being pitched at a smaller distance apart, are spaced according to the well-known equiangular arrange- ment. (Three claims.) 5229 (1912). Improvements in and relating to Briquette Presses. F. Crochet, Alais (Gard), France.—This invention relates to briquette-making presses such as that described in Specification No. 10159 of 1907. The object of the inven- tion is an improvement on the above type of machine by means of which the various strains resulting from the hydraulic transmission and compression are taken by a single frame instead of a compound frame. The invention nsri |’i?5 has further for its object an improvement on the mould plates employed in connection with machines of this kind and more particularly in the means for operating these plates, which usually consists, as described in Specification No. 29583/06, of a rod connected at one end with the crank shaft of the machine, and at the other with a slide block which is provided with a fork engaging a roller on the collar for rotating the plate. This improvement consists of a brake operated from the crank shaft and which acts upon the mould plate towards the end of the travel thereof and a stop lever also operated from said crank shaft and which engages in notches in said mould plate at the end of the travel of same. The movement of the plate thus obtained is very gentle and permits of running at a high speed while affording a maximum time for the compression period. Fig. 1 is a vertical section on the longitudinal axis, fig. 2 is a plan view, figs. 4 and 5 are enlarged views of the means for operating the mould plate. (Two claims.) 7282 (1912). Improvements in or Relating to Speed Governors. Fraser and Chalmers Limited, 3, London Wall Buildings, London, E.C., and Erith, Kent, and B. F. Pochobradsky, of 3, Queen’s-road, Erith, Kent.—This invention relates to improvements in speed governors of the type in which variable pressures are set up in a liquid by the action of centrifugal force, said pressures being utilised to effect the governing. More particularly it relates to governors in which the liquid is contained within a rotatable cylindrical chamber having a sliding piston that is displaced, against the action of a spring, by the pressure set up in the liquid, said displacements of the piston effecting the governing. According to the invention a speed governor comprises in combination a cylindrical chamber containing liquid and mounted so as to be rotatable, a piston slidable in said cylindrical chamber, spring, or equivalent means for pressing the piston towards the closed end of . the cylindrical chamber, means for rota- ting said chamber whereby pressure is set up in said liquid under centrifugal action, said pressure tending to move the o piston against the action of the spring or equivalent means, and a liquid reservoir communicating with said cylindrical chamber, whereby said chamber is always maintained full of liquid. The accompanying drawing illustrates, by way of example, a form of speed governor constructed according to the invention. (Five claims.) 9158 (1912). Improvements in Discharge Doors for Railway Wagons and other Receptacles The Metropolitan Amalga- mated Railway Carriage and Wagon Company Limited, of Saltley, Birmingham, and W. H. Wigley, of Dora-road, Small Heath, Birmingham.—This invention comprises improvements in discharge doors for railway wagons and other receptacles and refers to arrangements for permitting the discharge doors to be opened to discharge centrally from the wagon or receptacle or at the side of same. In the invention a door is hinged at one edge to one or more struc- tures or arms, and such structures or arms are themselves FIG PIG hinged at the other edge to the framing, and an operating member or members are employed movable to one side or the other, so as to support the structures and let down the door on its hinge, or to let down the structures on their hinges thus bodily lowering the door in the opposite direc- tion. Fig. 1 shows a vertical sectional view of a single door and operating member therefor. Fig. 2 in plan one side edge of this door. (Five claims). 10901 (1912). An Improved Swivelling Pillar Attachment for Carrying Rock Drills and Coal cutting Machines for Performing Channelling and Holing Operations. J. E. Davenport, of the Yorkshire Foundry, Black Bull-street, Leeds.—This invention relates to means for carrying rock drills, and coal-cutting machines of a similar type, from a pillar jammed tight between the roof and the floor of the mine, or between the sides of a roadway or heading in the mine, and so that jthe drill or machine is carried so that it can be slowly swivelled or swung through a considerable angle about an axis, thus cutting out a channel or groove in the rock or coal, usually horizontal, sometimes vertical, and more rarely inclined. The object is to provide a simple, convenient and efficient means for effecting this swivelling movement, and combined with adjusting means for obtaining a horizontal or a vertical or inclined channel or groove as may be desired. The adjusting means are more or less old, and comprise a split sleeve, the two halves of the same being joined by a hinge connection at one side and a clamp bolt at the other side, so that the sleeve can be clamped to the pillar and taken off without taking down the pillar. A lug or boss, cast integral with one-half of the split sleeve, is formed with a socket hole (preferably conical), adapted to receive a conical spigot piece or projection formed on the side of a sleeve, adapted to receive the pivot pin of a bracket carrying the frame of the drilling or cutting machine; so that the machine can be rocked or swivelled about the axis of the pivot pin to effect the channelling or grooving. The spigot and socket connection between the sleeve on the pillar, and the sleeve carrying the pivot pin of said swivelling bracket, provides adjustment for cutting vertically or horizontally or inclined as may be desired. According to the invention, an arm or lever is cast on the bracket which carries the machine frame, and a similar arm is cast on the sleeve which forms the socket for the pivot pin of said bracket. Both arms are preferably and conveniently of the same length, though not necessarily so. These arms are provided the one with a bearing for the end of a screw, and the other with a nut fitting the said screw. Both the nut and the bearing have a free swivelling connection to the outer end of their respective arms When the screw is rotated, the arm attached to the bracket carrying the machine is brought nearer to or further away from the arm cast, with the sleeve forming the socket for the pivot of said bracket, thus swivelling the machine so as to effect the channelling or grooving in the rock or coal. The swivelling bearing is preferably attached to the stationary one of the two arms. This device of the,two arms, the one carrying a swivel bearing, and the other a swivel nut with a connecting screw, may be applied somewhat more simply where horizontal channelling or grooving only is required, and similarly in the case where only a vertical channelling or grooving is required. In the first case the socket hole in the lug or boss is cast integral with one half of the pillar sleeve and is formed vertical, i.e., parallel to the pillar sleeve, and the one of the two arms is cast on the boss or lugs; the pivot pin of the bracket carrying the machine-frame fitting in said socket hole. In the latter case, i.e., for vertical channelling, such socket hole is formed with its axis horizontal. Fig. 1 is a plan of an attachment constructed according to the invention, shown mounted on the fixed pillar, the stationary and the movable arms being close together. Fig, 2 is a side elevation of the attachment only. Fig. 3 is a plan in which the stationary and the movable arm are opened apart to their fullest extent. Fig. 4 is a horizontal section on line A A of fig. 2, but looking upwards. (Three claims.) 16397 (1912). Improvements in Pedestal Bearings for Axles of Mining Corves and other Vehicles. J. H. Potter 229, Abbeyfield-road, Sheffield, F. C. Moorwood, 46, Whirlow- dale-road, Sheffield, and J. A.Potter, 7, Chatham-road, Rother- ham.—This invention relates to pedestal bearings, for the axles of mining corves and other vehicles, of the kind having two projections or arms capable of engaging the underside of the axle and of being disengaged by a relative turning movement of the axle and pedestal across the axis of the bearing. According to the invention a pedestal bearing is provided with a circular boss entering a corresponding recess in the vehicle frame and surrounding one of the pedestal securing bolt holes which is so disposed that engagement and disengagement of the arms and axle may be effected by turning the pedestal about the boss, and thus the axle may be removed and replaced without (Continued on page 668.)