baber/WOPTO huggingface dataset:
Patent GB-254060-A (GB)
Title: Improvements in and relating to electric measuring instruments
IPC: G01R11/00
Filed: 1925-05-13
Abstract: 254,060. Holden, F., and Measurement, Ltd. May 13, 1925. Mercury motor meters.- The mercury chamber is formed from a central core c of insulating material in which an internal magnet b is embedded and which is adapted to be fitted into an outer cylindrical portion d in which an external magnet ring a is embedded, an annular space e being left for the reception of the bell armature and mercury. The external magnet ring a may be formed from a bar of tungsten steel bent into ring form and having its lap joint acetylene welded; the internal magnet b is preferably formed of cobalt steel. As shown, the central core c is arranged to be fitted into the outer part d from the top, but alternatively it may be fitted in from the bottom. The parts c, d may be held together by screws or by shellac varnish or other adhesive. The parts c, d may be formed of a synthetic resin containing a filler. The chamber may be closed by a plate, cap, cover plate, or closure, and means such as are described in Specification 255,172 may be employed for magnetizing the magnetic system alter assembly of the parts.
Patent GB-580329-A (GB)
Title: Improvements in or relating to ventilators
IPC: F24F7/00
Filed: 1944-06-30
Abstract: 580,329. Ventilators. MELLOWES & CO., Ltd., and BROWN, W. June 30, 1944, No. 12464. [Class 137] A hopper ventilator for use in a window or wall comprises twc spaced apart faces, one of which fills the ventilating aperture in the closed position and which together, in conjunction with fixed or movable side wings form an upwardly directed air inlet duct. As shown, the ventilator is hinged at 10 and comprises two glazed faces 13. 17 and side wings 22 substituted for twc panes of a conventional metal-framed window The face 13 is adapted to fill the ventilating aperture in the closed position and the other face 17 comprises twc parts 20, 21 the top part 20 being vertical when the ventilator is open tc provide a flared upper mouth for the ventilating duct. and effectively closing the top part of the ventilating aperture so as to prevent the entry of rain &c.
Patent GB-916783-A (GB)
Title: Improvements in and relating to purification of hydrocarbons
Inventor: PEARCE THOMAS JAMES PERRETT
IPC: C10G45/08
Filed: 1960-04-08
Abstract: Normally liquid hydrocarbons are desulphurized by vaporizing the hydrocarbon and passing the vapour in admixture with hydrogen at elevated temperature over a contact material comprising essentially iron oxide, thereafter passing the so-treated hydrocarbon at elevated temperature over a hydrodesulphurization catalyst, and finally passing it over a hydrogen sulphide absorbing material.  The desulphurization is preferably conducted at 250 DEG  to 500 DEG C., 10 to 20 atmospheres gauge, using cobalt molybdate preferably supported on alumina.  The iron oxide may be naturally occurring iron oxide, the residue left after extracting alumina from bauxite or the oxide formed in the reduction of nitrobenzene to aniline by iron, and may be pelleted.  The hydrogen is preferably employed in an amount of 10 to 100% by volume of the hydrocarbon vapour.  The hydrogen sulphide absorbent may be zinc oxide.
Patent GB-782500-A (GB)
Title: Improvements in or relating to impression rollers for printing machines
IPC: B41F13/18
Filed: 1953-05-06
Abstract: 782,500. Rollers. BUSH, H. N. April 22, 1954 [May 6, 1953], No. 12554/53. Class 42 (2). [Also in Groups XVI and XXIV] A rubber-covered steel printing impression roller 2 is sweated on cast iron end plugs 3 which have a predetermined clearance of one thousandth inch on a driving shaft 6, to drive frictionally but to allow sufficient slip to accommodate peripheral speed differences of the roller, as due to swelling of its cover. Oil holes 5 are provided in the end-plugs, and set screwed collars 7 locate axially.
Patent GB-1307996-A (GB)
Title: Indirectly air-cooled condensing system
IPC: F28B3/04
Filed: 1970-03-17
Abstract: 1307996 Condensation of steam; cooling water for jet condensers GEA LUFTKUHLERGESELLSCHAFT HAPPEL GmbH & CO KG 17 March 1970 [17 March 19691 12720/70 Heading B1B Steam discharged from turbine 1 is condensed by contact with jets of cool water from nozzles 5a in condenser 5, the mixture of condensate and cooling water leaving the condenser divides into two streams, one of which is conveyed by pump 7 to the boiler (not shown), the other stream is cooled by pumping it via manifold 10 through groups of elements 12 (e.g. finned tubes) exposed to atmospheric air, and the cooled water collected in manifold 15 is passed to the nozzles of the condenser 5 via pipe 16 and valve 17. The pressure within condenser 5 is maintained as low as possible, e.g. 0.15 atm. abs. by air ejector 27. The highest points of the elements 12 are connected by pipes 35, 35a to the air ejector 37 of the condenser; but the elements 12 can also be maintained under reduced pressure by connecting their highest points to the condenser itself (Fig. 3, not shown) or to a separate vacuum pump (Fig. 4, not shown). In the system shown in Fig. 4, two of the elements 12 have water-level gauges which start the vacuum pump whenever the water-level falls below a given minimum due to a corresponding rise in pressure in pipe 35 owing to access of atmospheric air or release of inert gases from the water. The pump remains in operation until the air or inert gases have been ejected from elements 12 and the water has risen to its normal level. Alternatively the pump may be allowed to run continuously. Each group of elements 12 is fitted with a temperature gauge and this, together with a pressure gauge in pipe 35, sends signals to a regulator which adjusts valve 17 so that the pressure in pipe 35 does not fall below the saturation pressure in the upper ends of elements 12. The systems shown in Figs. 2 and 4 are provided with a supply of protective gas, such as nitrogen, connected to pipe 35, and this permits the elements 12 to be filled with protective gas when they are drained. In the system shown in Fig. 5, the highest points of elements 12 are connected to the ejector pump of the jet condenser (as in Figs. 1 and 2), but a separator, which removes water that may have entered the main vacuum system, is connected between pipe 35a and the ejector pump. The separated water is returned to the cooling cycle. The pressure-reducing valve 17 may be replaced by an expansion turbine.
Patent GB-859319-A (GB)
Title: Improvements in or relating to induction heater transformer control arrangements
IPC: G05D23/19
Filed: 1956-04-25
Abstract: 859,319. Automatic temperature control systems. SOUTH WALES SWITCHGEAR Ltd., and ROSE, H. V. April 25, 1957 [April 25, 1956], No. 12747/56. Class 38 (4). A temperature control arrangement for an induction heating system comprises a variable voltage transformer, a temperature controller and an overload relay with means to cut out the relay under certain conditions. A mains frequency induction heating coil for welding is fed from a tap-changing transformer, controlled through leads 4 by temperature controller 1. A signal on terminal 9 raises the applied heat and on terminal 10 reduces it, the circuits being only intermittently connected by periodic time switch 6. The relays 11, 12 and 13 are interconnected and operate, one at a time, with a sequence of " lower," " raise " and " lower " signals from controller 1, indicating that the operating temperature has been attained. Relay 13 starts synchronous time switch 14 which times an annealing period and then open circuits the controller by energizing relay 15. Relay 15 also starts time switch 16 which feeds a series of timed signals to the " lower " temperature lead 4 to give a controlled cooling period. The overload relay 2 is connected by a current transformer with the load coil circuit and operates to open-circuit the " raise " temperature signal head 4 by contacts 20, 21. Contacts 22, 23 of the same relay enable the first " lower " temperature signal from switch 16 to operate also relay 17. This relay, by contacts 18, 19, short circuits the overload relay coil to de-energize it and since cooling is now taking place it will not be re-energized until the next heating cycle.
Patent GB-947606-A (GB)
Title: N-substituted piperazines
Inventor: MORRIS CYRIL
IPC: C07D295/04
Filed: 1961-04-10
Abstract: The invention comprises compounds of the general formula: <FORM:0947606/C2/1> in which X is hydrogen, a halogen or a sulphonic acid group; one Y is a hydrogen atom or a sulphonic acid group, and the other Y is a hydrogen atom, a hydroxy or sulphonic acid group and the naphthalene nucleus may carry additional sulphonic acid groups, provided that the compounds contain 1 or 2 sulphonic acid groups. The compounds are made by heating piperazine with a naphthalene compound of the formula: <FORM:0947606/C2/2> in which Z is -OH or -NH2 possibly with additional sulphonic acid groups, as above.  The process may be carried out by heating in water at a temperature between 90 DEG  and 150 DEG C. and preferably in the presence of an alkali metal sulphite or bisulphite.  Numerous examples of compounds prepared are given.  The compounds are used as intermediate for making dye stuffs.
Patent GB-639646-A (GB)
Title: Improvements in pinchcocks
IPC: B01L3/00
Filed: 1948-05-11
Abstract: 639,646. Pinch cocks. UNIVERSAL WOODWORKING CO., Ltd., and LAWSON, G. May 11, 1948, No. 12858. [Class 135] A pinch cock comprises a one - piece U - shaped frame 1, a clamping plate 7 slidably mounted on the side members 3 of the frame, a base-plate or cross-bar 5 connected to the outer ends of the side members 3, and a clamping screw 10 swivelly connected to the clamping plate 7 and adjustably mounted in a bridge 2 integral with the side members. The frame 1 is stamped or pressed from a flat metal blank and subsequently bent. The base-plate 5 can pivot about one of the side members 3 in a plane at right angles to that of the frame 1 and engages the other side member 3 by means of a slot 6. In an alternative form, the base-plate 5 is attached to both side members by riveting over their lower ends. A sheath 12 of sheet metal prevents the clamping plate from damaging the flexible tube to which it is applied. The ends of the clamping plate may be forked to engage the side members.
Patent GB-803635-A (GB)
Title: Sanitary napkin
IPC: A61F13/15
Filed: 1957-04-24
Abstract: 803,635. Catamenial appliances. KIMBERLY-CLARK CORPORATION. April 24, 1957 [April 27, 1956], No. 13054/57. Class 81 (2). An absorbent pad for a sanitary napkin is made from a main pad on which is placed a supplementary pad, the same width as the main pad but considerably thicker. A supplementary pad 16 of wood fluff, enclosed in semi-repellent sheets 18, 20, may be placed on the main pad 14, preferably slightly towards one side of the centre line. Fluid-repellent sheets may be incorporated in the main pad to prevent fluid striking through to the reverse side and, if desired, two supplementary pads may be used, one on each face, so that either side of the pad may be applied to the body. It is also proposed to place a small fluid impervious sheet adjacent the ends of the supplementary pad for the same purpose. Such a pad is enclosed in a gauze wrapper, allowance for the varying thickness of the pad being made by tucking in the sides of the wrapper, at the end tabs, to accommodate the excess. Specification 682,190 is referred to.
Patent GB-826280-A (GB)
Title: Valve means for controlling the flow of inhalant gas to a patient
Inventor: BLACK GEOFFREY DONALD
IPC: F16K15/14
Filed: 1957-04-24
Abstract: 826,280. Respiratory apparatus. BRITISH OXYGEN CO. Ltd. March 17, 1958 [April 24, 1957], No. 13075/57. Class 81 (2). A valve assembly for breathing apparatus comprises gas inlet and outlet chambers 14, 15 communicating through a valve port 18, a pressure-responsive member 20 exposed to pressure in the inlet chamber 14 and to atmosphere and carrying a valve 40 movable either manually or according to the patient's demand to open the port 18 and close a vent or by pressure in the inlet chamber 14 to close the port 18 and open the vent. The inlet and outlet chambers 14, 15 are separated by a partition 13 with the valve port 18 and have inlet and outlet ports 16, 17 respectively. The valve 40 is carried by a valve stem 24 which is connected to and passes through a diaphragm 20. A knob 27 by which the valve port 18 may be opened manually is secured on the free end of the valve stem 24. The vent is formed by a tube 33 extending into the outlet chamber 15 coaxial with the valve stem 24 and passing through the outlet chamber wall to communicate with atmosphere through a non-return valve 36 and holes 39. When gas is supplied to the inlet chamber 14 continuously at positive pressure, the valve port 18 may be opened by depressing the knob 27 manually and thus moving the valve 40 to seat on the top of the tube 33. This closes the vent and permits gas to flow to the patient to induce inspiration. On releasing pressure on the knob 27, the gas moves the diaphragm 20 outwardly of the inlet chamber 14 and thus moves the valve 40 to close the valve port 18 and open the vent, so that the patient can exhale naturally by way of the outlet chamber 15, tube 33 and non-return valve 36. If the patient begins to inhale naturally while the valve port is closed, the reduction in pressure created in the outlet chamber 15 permits the valve 40 to slide on the stem 24 against a spring 42 thus opening the valve port 18. When the inlet 16 is connected to a gas supply the pressure of which varies according to the patient's demand, inhalation reduces the pressure in the outlet and inlet chambers 15, 14, the valve port being initially slightly open. The diaphragm 20 moves inwardly of the inlet chamber 14 and holds valve 40 open. Expiration under demand conditions increases the pressure in the inlet and outlet chambers so that the diaphragm 20 moves to close the valve port 18 and open the vent. In a modification, a passage (not shown) in the valve stem connects the inlet to the vent during exhalation under positive pressure conditions, gas issuing from the passage assisting expiration. During inhalation the valve slides on the stem and closes the passage.
Patent GB-540814-A (GB)
Title: Improvements in or relating to cotton combing machines
IPC: D01G19/04
Filed: 1940-08-19
Abstract: 540,814. Safety devices for combing machines. FINE COTTON SPINNERS & DOUBLERS ASSOCIATION, Ltd., and HORSLEY, J. E. Aug. 19, 1940, No. 13175. [Class 80 (iv)] The starting rod of a combing machine of the Nasmith type is prevented from being actuated, unless the operator uses both hands, by a pivoted arm c which engages a slot b in a sleeve B on the starting rod A when the latter is in the "stop" position; the arm is lifted, to allow actuation of the starting rod by its handle b, by the rotation of a rod E arranged parallel to the starting rod a short distance above it and provided with a handle E<SP>1</SP>. As shown the arm has a casing D fixed to its upper surface to receive the cranked end e' of the rod E and the handle E' is weighted to rotate the rod into position for the arm to engage the slot in the sleeve B; a separate weight may be used in lieu of, or in addition to, the weighted handle E.
Patent GB-353946-A (GB)
Title: Improvements in lifting and hauling apparatus and the like
IPC: B66B7/06
Filed: 1930-04-29
Abstract: 353,946. Slings. THIRLWELL, R., 9, Newmarket Street, Consett, Durham. April 29, 1930, No. 13201. [Class 78 (iv).] A sling of the type in which a running noose is formed by passing the eye at one end of a rope over a hook on a block and then passing the rope through the block which has lateral projections at its lower part for maintaining the rope eye in position is provided with (1) a pin which passes through holes H in the lateral projections F and centre part of the block A, and prevents detachment of the loop in the end of the rope from the groove D, (2) a sliding clamp L adapted to bear against the portion C of the rope which runs through the hole B. Fig. 8 shows a pin I provided with a pivoted tongue J adapted to be turned at right-angles to the pin after it has been inserted through the holes H, thereby preventing its removal. The clamp L, Fig. 1, fits in a rectangular slot M in the block A, and is pressed against the rope by a bolt N screwed into the block and provided with either a hole o or a square head for tightening purposes. Specification 236,314, [Class 78 (iv), Loading &c.], is referred to.
Patent GB-295216-A (GB)
Title: Improvements in friction clutches or brakes
IPC: F16D13/75
Filed: 1927-05-17
Abstract: 295,216. Douglas Motors, Ltd., and Pullin, C. G. May 17, 1927. Clutches, friction. - In friction clutches and brakes of the kind comprising two or more springs acting on a presser-plate, the springs, which bear at one end on the bases of thimbles carried in the presser-plate, press at the other on adjustable collars and locking-washers mounted on spindles lying within the springs and secured to the clutch &c. hub. As applied to a multiplate clutch for motor-cycles. each thimble 9 lies in an aperture 8 in the presser-plate 7 and its flange 11 is indented or tongued to engage a, notch in the plate to prevent rotation. A locking-washer 17 is provided with a. tongue 18 to engage a groove in the spindle 13, extending from the web 14 of the driving-hub 2, and with one or more radial ridges 19, which, under the pressure of the spring 15, engage depressions in the adjacent face of the screwed adjusting-collar 16. The collars can, however, be forcibly turned by a forked screwdriver, access being obtained through a plugged orifice (not shown) provided in the stationary casing 20, and also in the rotary part 21 unless this is of skeleton form. Declutching is effected by a rod 22 actuated as by a face-cam 25.
Patent GB-624502-A (GB)
Title: Improvements in or relating to mechanical mowers
IPC: A01D34/03
Filed: 1947-05-16
Abstract: 624,502. Reaping machines. KENNARD, A. H. May 16, 1947, No. 13279. [Class 6(iii)] A mowing attachment for a vehicle is provided with a cutter bar adapted to extend transversely from one side of the vehicle and to be tiltable about a pivotal axis, parallel to the line of travel of the vehicle, without interrupting the drive to the cutters. The device is shown attached to a motor lorry by rods 14 mounted in brackets 15 on the vehicle chassis. The rods carry a frame 40, Fig. 4, on which is mounted a sprocket 19 driven from the vehicle wheels. The sprocket drives a shaft 20 through a clutch 22, a bevel wheel 21 being fixed on the shaft. The bevel wheel 21 drives a further bevel wheel 23, which in turn drives the cutter bar through a bevel wheel 25, a gear-train 28- 29-32, a crank-disc 34 and a connecting-rod 36. The gears 28 and 25 are mounted on a body member 56 pivoted to the frame 40 and rotatable thereon about a pin 54 which carries the bevel wheel 23. The' pivot pin 54 extends parallel to the direction of motion of the lorry and the cutters 11 may therefore be raised, by a winch 38 on the lorry, without interrupting the drive. The cutters and their driving mechanism, including the gears 29, 32, are mounted on a cutter-support 30 pivoted to the body 56 about a normally-vertical pivot pin 65. On encountering an obstruction, or for convenience in transport, the cutters can swing backwardly about the pivot 65, thereby interrupting the drive due to the separation of the pinions 28 and 29. A catch (not shown) may be provided to ensure that backward swinging only occurs when the torque exceeds a given amount, and a spring 39 provides a restoring force.
Patent GB-421033-A (GB)
Title: Improvements in or relating to multi-row self-aligning roller bearing with one or more guide rings between the rows of rollers
IPC: F16C23/08
Filed: 1934-05-02
Abstract: 421,033. Roller bearings. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN, 17, Artillerigatan, Gothenburg, Sweden. May 2, 1934, No. 13296. Convention date, May 27, 1933. [Class 12 (i)] A guide ring 4 located between the rows of rollers of a self-aligning multi-row roller bearing is relieved at one or more points 7 of its outer periphery so that it can be inserted in the outer bearing ring 1. The ring 4 bears against, or is situated close to, the spherical race 6 of the ring 1 and is formed with flats 7 at diametrically opposite points so that when it is mounted between the rows of rollers 3 on the inner bearing ring 2 and the cage openings 9 opposite the flats are not filled, the rings 2, 4, the rollers 3 and their cage 5 may be moved together parallel to their own plane and at right angles to the plane of the ring 1. When the centres of the race 6 and the ring 4 coincide, the two cage openings 9 are filled and the members 2, 3, 4, 5 are turned into the plane of the ring 1. A deep single flat may alternatively be provided and there may be more than one guide ring.
Patent GB-335911-A (GB)
Title: Improvements in evaporators
IPC: B01D1/02
Filed: 1929-04-30
Abstract: 335,911. Quiggin, D. A. April 30, 1929. Bulk evaporators.-In steam-heated evaporators for preparing feed-water for boilers from brine, the circulation of the brine and the deposition of sediment is facilitated by the provision of one or more baffle plates of conical, pyramidal or like shape located between the heat transmitting surfaces and the bottom of the evaporators, the apex portion of such baffles being cut away so as to provide a passage way therethrough, and the peripheral portions extending to or nearly to the shell of the evaporator. The brine inlet pipe and steam drain pipe are carried together round the heating surfaces, and the brine issuing in small jets is heated by impinging on the drain pipe. In one form the evaporator comprises a casing A, with heating coils B in an apron M, concentric conical baffles K<1>,K<2>, a brine inlet pipe C and a drainpipe D. Sediment depositing at the base of the vessel is discharged through a door a<5> by means of a blow-down pipe a<4>; at the same time scale may be detached from the heating pipes B by spraying them with cold water from a rose E. In normal operation the steam generated is freed from spray by passage through the cylindrical vessels F, G, which have peripheral portions f composed of spirally disposed blades. Modified forms of baffle are illustrated consisting of a single conical surface, two concentric conical surfaces with their slopes in the same sense, or two concentric conical surfaces with their slopes in opposite senses and meeting at an edge which is perforated.
Patent GB-611688-A (GB)
Title: Improvements in or relating to thermionic-discharge devices
IPC: H01J1/15
Filed: 1946-05-06
Abstract: 611,688. Thermionic valves. PHILIPS LAMPS, Ltd. May 6, 1946, No. 13676. Convention date, Feb. 5, 1942. [Class 39 (i)] In an electric discharge 'device with a cathode 1 directly heated by alternating current, the hum caused by the varying magnetic field of the cathode is reduced by arranging a much stronger steady magnetic field H<1> parallel to the electron path.