baber/WOPTO huggingface dataset:
Patent GB-568883-A (GB)
Title: Improvements in chromium recovery
IPC: C22B34/32
Filed: 1942-03-03
Abstract: 568,883. Roasting chromite ores; alkali chromates. UDY, M. J. March 3, 1942, No. 2818. Convention date, July 5, 1941. [Class 1 (iii)] In the production of alkali chromates, a charge comprising chromite ore, lime and soda is roasted until not more than 80 per cent of the chromium has been oxidised to chromate, the charge then leached to obtain a chromate solution, and the residue subjected to a concentration treatment to recover undecomposed chromite. Prior to roasting, the ore may be sintered or fused in the lime as described in Specification 540,364. A suitable charge comprises lime amounting to one and one half to twice the weight of the ore, and enough sodium carbonate to form chromate with 70-80 per cent of the ore. Roasting may be effected at 750-1000‹ C. for about three hours, and leaching be effected with sodium carbonate solution to convert any calcium chromate formed to sodium chromate. The chromite concentrate recovered from the residue after leaching may be leached with sulphuric acid to remove iron oxide and be returned to the roasting process.
Patent GB-138365-A (GB)
Title: Improvements in floats for apparatus for controlling liquid mediums especially in refrigerating machines
IPC: F25B41/06
Filed: 1920-01-29
Abstract: 138,365. Ruegger, E. Jan. 30, 1919, [Convention date]. Floats.-A hollow valve float 8, for use especially in refrigerating-machines, is charged with a fluid the vapour pressure of which is above atmospheric pressure at 20‹ C., and varies in the same sense and ratio as the pressure of the medium to be controlled. Collapse of the float by external pressure is thereby prevented. For example, when the float valve is controlling sulphurous acid (SO2), the interior of the float may be charged with ammonia (NH3), or with sulphurous acid. The fluid within the float should be of such kind and quantity as to be partly in a liquid state throughout the range of working temperatures.
Patent GB-662155-A (GB)
Title: Improvements in or relating to a gauge for indicating the weight of the liquid contents of a container
IPC: G01F23/32
Filed: 1949-02-02
Abstract: 662,155. Indicating liquid levels. LIQUIDOMETER CORPORATION. Feb. 2, 1949 [July 30, 1948], No. 2848/49. Class 123(i) In a float-operated gauge 34 for indicating the weight of the liquid contents of a tank 20, a thermometer 42, adapted to compensate for differences in temperature of the liquid, is located within the float 24. As shown the float is mounted on one end of a tubular arm 26 the other end of which is secured to a bracket 30 pivoted at 28 on a horizontal arm of a support 32 which depends from the gauge 34 and houses a vertical push-rod 36, the latter being linked by a bell-crank 38 to a spring-pressed conical-pointed follower 74 which contacts a three-dimensional cam 64 slidable upon a pair of parallel rods 66 extending between the side walls of the bracket 30. The arrangement is such that a change of liquid level will effect simple rotation of the cam 64; a change of temperature, however, will expand or contract a bellows 44, which is mounted in the bracket 30, is connected to the thermometer 42 by a capillary tube 46, and is linked at 52 to the cam 64, to impart a sliding movement to said cam and so modify the setting of the follower 74 and push-rod 36.
Patent GB-713249-A (GB)
Title: Apparatus for reducing the diameter of plastic cylindrical bodies
Inventor: GRAY THOMAS EDWARD HORACE
IPC: B29C67/00
Filed: 1951-02-06
Abstract: 713,249. Mounting bearings. DUNLOP RUBBER CO., Ltd. Jan. 28, 1952 [Feb. 6, 1951], No. 2866/51. Class 12(1) [Also in Group V] In apparatus for reducing the diameter of a plastic cylindrical body (see Group V) the bearings 12 in which rollers 1, 2. 3 are mounted are slidable in slotted members 13 which are provided with racks 24. The racks engage a common pinion 25 which may be driven to move the bearings radially, or the rollers may be urged inwards by the tension in a chain 4, the pinion 25 thus ensuring that they converge at the same rate. In a modification the rollers are not arranged to converge radially but perpendicularly at different rates, the pinions engaging the racks then being of different diameters. Specification 713,248, [Group IV(a)], is referred to.
Patent GB-115397-A (GB)
Title: Improvements in Operating Mechanism for Variable Speed and Torque Gearing.
Filed: 1917-05-03
Abstract: 115,397. Leyland Motors, Ltd., and Thomas, J. G. P. May 3, 1917. Operating and controlling variable-speed gearing.-In operating-gear, particularly applicable for use with the epicyclic gear described in Specification 115,267, a controller-shaft carries a series of notched collars adapted to be engaged and locked by the ends of a series of levers used for actuating the speed-changing members. A controller-shaft 25, rotated by a hand-lever 32, a shaft 33, and bevel-gearing 31, carries cams 26 - - 30 with which engage levers 19 - - 23 loose on a shaft 18 and operating the clutches and brakes. The shaft 25 is so rotated by the lever 32 as to permit movement of the operating-levers to engage with notches in the cams in the required order. The levers 19 - - 23 engage with lost-motion sleeves 19b - - 23b pinned to the shaft 18 so that a pedallever 24 may be actuated to rotate the shaft 18 and raise all the levers 19 - - 23 so as to disengage all the clutches and brakes. The shaft 18 may also be rotated by a lever operated by a piston 37 in a cylinder 38, which may be connected to the induction-pipe 42 of the engine driving the gear. A valve 45, automatically operated when the hand-lever 32 is raised to change the gear, connects the pipe 42 and cylinder 38 so that, when the throttle is partly or wholly closed, the suction lifts the piston 37 and the shaft 18 is rotated and the clutches &c. are all returned to neutral. More than one cylinder 38 may be provided. The shaft 18 may be rotated by an engine-driven air-pump or by electro-magnetic means.
Patent GB-463501-A (GB)
Title: Improvements in or relating to gaseous fuel induction pipes for internal combustion engines
IPC: F02M1/00
Filed: 1936-01-31
Abstract: 463,501. Cylinders and crank-cases. FAIREY AVIATION CO., Ltd., and FORSYTH, A. G. Jan. 31, 1936, No. 3002. [Class 7 (ii)] A compact engine is produced by forming in the crank-case longitudinal admissionpassages b, having one or more ports d, for connection to a carburetter or pump, and branch passages c leading to the cylinders. Preferably a passage c is provided for each pair of cylinders, the passages being connected by passages in the cylinder blocks to bifurcated passages k in the cylinder heads. The application is shown to an H-engine in which the passages b each have two ports d, which are connected in pairs to a supply passage f, the charge being supplied by a pair of rotary pumps mounted on the sides of the crank-case and connected to flanges h. Recesses may be formed in the central part of the top and bottom of the crank-case for the reception of a gun and an oil cooler. Specification 406,118 is referred to.
Patent GB-685020-A (GB)
Title: Process for the production of light coloured rubber hydrochlorides
IPC: C08C19/16
Filed: 1951-02-07
Abstract: Light-coloured rubber hydrochloride is produced by causing chlorine dioxide to act in a low concentration on a solution of rubber hydrochloride.  The chlorine dioxide may be used in the gaseous form, dissolved in a solvent such as benzene, or by adding sodium or potassium chlorite to a solution containing free hydrogen chloride. The reaction is allowed to continue for from about 30 minutes to 10 hours and excess chlorine dioxide is removed by blowing air or an inert gas such as nitrogen or heating at 60-70 DEG  C., the hydrochloride is then worked up in the usual way.  The hydrochloride may be dissolved in benzene, toluene, xylene, chloroform or dichlorethylene.  Specification 437,304 is referred to.
Patent GB-310786-A (GB)
Title: Improvements in or relating to valves
IPC: F16K31/44
Filed: 1928-01-31
Abstract: 310,786. British - American Laundry Machinery Co., Ltd., and Russell, E. S. Jan. 31, 1928. Valves actuated by rotary motors.-A multiple valve arrangement more particularly for use in washing and like machines comprises a number of lift-valves 3 in combination with a paddle wheel 18 or the equivalent operable by the flow of fluid (water), a counting mechanism 19, 20, and a detent or clutch release mechanism 27, 29, &c. operable by the counting mechanism but adjustable to operate after a greater or lesser quantity of liquid has flowed. The lift-valves 3 are each operated to a variable extent by a handle 5 through levers 7, shafts 9, and lever arms 10 having bosses 11 engaging the valve stems. The valves are latched in the various opened positions by catch-pawls 12 engaging racks 13 formed on the handles 5. The consequent flow of water through the header 14 to the outlet 17 rotates the paddle wheel 18 which rotates the counting disc 20 through gearing 19. The disc 20 carries an indicator arm 22 operating in conjunction with a calibrated disc 24 to indicate the quantity of liquid passed. The arm 22 is adjustable by means of a spring-pressed pin 25 engaging any one of a number of holes 21. When the required quantity of liquid has passed the inclined end of the arm, 22 strikes and releases a detent 27 and a vertical rod 29 thereby allowing a shaft 31 to make a partial rotation under the action of a weight 32, the said shaft 31 having lever arms 33 which release simultaneously all the catch pawls 12 and allow the valves 3 to close.
Patent GB-126725-A (GB)
Title: Apparatus for Indicating the Point of Arrival at the Earth of a Missile Released from an Air-ship.
Inventor: CHACON CARLOS PADILLA
IPC: F41G3/24
Filed: 1917-03-03
Abstract: 126,725. Chacon, C. P. March 3, 1917. Sights.-Apparatus for determining the point of arrival at the earth of a. missile released from an airship comprises an optical arrangement to form an image of the terrain over which the airship operates and an indicator under the control of a barometer or a speedometer or both to vary the relation between the image and the indicator in accordance with the angle or curve of the fall as determined for different heights and speeds. The optical system is shown in Fig. 3, and comprises leaves 4 arranged so as to produce an exact image. The cross-wire 5 is moved across the fixed wires 6 in the image plane of the optical system by means of an aneroid barometer 12, the diaphragm of which acts on the spring pressed plunger 15 having rack teeth engaging a pinion 17 on a shaft carrying gear-wheels 19 engaging racks 20 attached to the slide 8 on which the cross-wire 5 is mounted. The barometer is mounted on a slide 9 which is moved by a device operated by the movement of the airship through the air; this device comprises an anemometer fan rotating a hollow cylinder 21, lined with glass and containing a conducting liquid, the effective length and therefore the electrical resistance of which is varied by the movement of a perforated piston 23 attached to arms carrying weights 28, rotation of which causes the piston 23 to rise. This liquid column is in the circuit of a solenoid 34, the core of which i s attached to liukwork to move the slide 9 carrying the barometer 20. A second barometric control is provided, comprising the aneroid barometer 47 carrying a pin 48 provided with a rack engaging pinions which rotate a drum 54 having a helical groove in which a pin engages. Rotation of the drum 54 causes the pin to move and alter the effective length of one of the links in the link-work actuated by the solenoid 34 and thus alter the travel of the slide 9.
Patent GB-147408-A (GB)
Title: Garment hanger
IPC: A47G25/40
Filed: 1920-02-03
Abstract: 147,408. Gould, H. M. Feb. 3, 1920. Coat and like hangers.-A collapsible hanger is composed of interlocking blocks 1 connected by a flexible band 3 cemented thereto. The hanger may be folded as shown, or still further collapsed about the central block. The manufacture may be carried out by placing side by side a number of tongued and grooved planks, glueing a strip of cloth thereto, and sawing through.
Patent GB-102197-A (GB)
Title: Improvements in or relating to Lacing Fastenings for Corsets and other Articles of Wearing Apparel.
Inventor: SMITH MICHAEL HOLROYD
IPC: A41F1/04
Filed: 1916-03-07
Abstract: 102,197. Smith, M. H. March 7, 1916. Lacing-fastenings.-Relates to lacing-fastenings for corsets &c., and consists of a strip of fabric D having holes therein for the reception of the prongs of staples a, these prongs being bent down as shown at x, y, or z, Fig. V.. the strip of fabric folded about these bent prongs, and a line of stitching run adjacent the bent prongs to prevent inward motion of the loops. The staples may be attached directly to the fabric of a garment.
Patent GB-167116-A (GB)
Title: Improvements in and relating to corsets
IPC: A41C1/10
Filed: 1921-01-28
Abstract: 167,116. Hahn, R. M. Jan. 28, 1921. Addition to 156,453. Corsets.-In a corset as described in the parent Specification, each portion b' of the elastic band b consists of two parts provided with eyelets p at their adjacent edges which are suitably bound with strips of fabric q. The two parts are connected by laces r which permit the length and tension of the band to be adjusted. In some cases, the flat hooks d may be dispensed with and the two pieces b<1> connected by lacing.
Patent GB-175518-A (GB)
Title: An improved apparatus for handling red-hot coke discharged from gas-retorts, coke-ovens or the like
IPC: C10B39/04
Filed: 1921-01-29
Abstract: 175,518. Gibson, R. E., and Nicoll, H. Jan. 29, 1921. Discharging.-The coke is pushed by the discharging-machine from the retort 3 into a hinged tubular container 1 of the same cross-section as the retorts 3, the space between the receiving-end of the container and the retorts being filled by tubular bridge-pieces 4 and open shoots 5. The container 1 is hinged at 2 and is carried on a carriage 6 travelling on rails 8; a reversible motor, connected with the power-collecting arm 15, operating the carriage and the hoisting-drum 13 which raises the receiving-end of the container 1 by means of a cable 11, pulleys 12, and a girdle 10. The coke is delivered to a quenching-bench 25, or other cooling-apparatus, outside the retort house or in any other convenient position, or the coke may be delivered direct to gas-producers. A hinged apron plate 26 bridges the space between the discharge end of the container 1 and the quenching-bench 25. When discharging a lower retort, a portion of the coke is pushed through the container when it is shorter than the retort, the remainder being discharged by gravity by hoisting the reciving end. Additional hoisting- means may be provided for the discharge end of the container 1, in which case the container receives the coke in an horizontal position, the bridge-pieces 4 being adapted to turn aside to clear the front of the container. The coke is discharged by depressing the discharge end or elevating the receiving-end of the container 1. The container 1 may also be adapted to move radially in an horizontal plane, and two or more containers may be mounted on one carriage when it is necessary to receive one-half of the charge in each container before discharging, or when it is desired to discharge two or more retorts simultaneously. The container 1 is preferably lined with fire-clay slabs bolted to the metal casing in such a manner to allow for expansion and contraction. '
Patent GB-995904-A (GB)
Title: Improvements in hydro-pneumatic dampers
Inventor: STOCK CHARLES SAMUEL ROBERTS
IPC: F16F9/06
Filed: 1962-01-31
Abstract: 995,904. Hydro-pneumatic shock absorbers. GIRLING Ltd. Jan. 11, 1963 [Jan. 31, 1962], No. 3594/62. Heading F2S. A direct - acting telescopic damper comprises a liquid - filled cylinder 10 closed at one end 13 and accommodating a doubleacting valved piston 19 with a piston rod 21 projecting through a seal 22 at the other end of the cylinder, a floating piston 23, a diaphragm, between the piston 19 and the closed end 13 of the cylinder, and a reservoir 12 partly or wholly surrounding the working cylinder 10 and in communication, through a port 25, with its closed end, the reservoir containing liquid and a volume of air, or other gas, under pressure. The reservoir 12 is formed by the annular space between the cylinder 10 and an outer cylinder 11 the upper end of which is reduced at 15 and secured, e.g. by welding, in pressure-tight manner to the cylinder 10. The gas in the cylinder 11 is preferably confined in a flexible bag 26 provided with individual longitudinal cells. The lower ends of the two cylinders 10, 11 are closed by a cup-shaped pressing 13 the upper seal 22 being located between a plug 16 which closes that end of the cylinder 10 and a screw-cap 18.
Patent GB-1522742-A (GB)
Title: Apparatus for running operating and retrieving subsea well equipment
IPC: E21B33/043
Filed: 1976-01-19
Abstract: 1522742 Wells &c FMC CORP 19 Jan 1976 [25 July 1975] 03605/78 Divided out of 1522741 Heading E1F The subject-matter of this specification is identical with that described in Specification 1522741, the claims being directed to the running and retrieving tool itself.
Patent GB-227004-A (GB)
Title: Garment and the like racks
IPC: A47G25/18
Filed: 1924-02-12
Abstract: 227,004. Diver, C. H. Feb. 12, 1924. Garment racks. - A length of wood, metal, &c., preferably in two or more hinged sections, is provided with an upper rotatable, or integral hook A by which the rack is suspended, and with a series of hooks G on each of its broad sides to receive garment hangers &c.
Patent GB-106271-A (GB)
Title: Automatic Safety Boat-releasing Device.
Inventor: ONO TERUO
IPC: B63B23/58
Filed: 1917-03-13
Abstract: 106,271. Ono, T. May 8, 1916, [Convention date]. Boat-disengaging gear.-A device for releasing ships' boats from the lowering falls when the boat is water borne is actuated by air compressed by water flowing into the device from outside the boat. The boat falls have rings 33 normally engaging notches 25 in spring- pressed bolts 23, adapted to slide in casings 26 attached by pillars 31 to the bottom of the boat. The bolts are connected by chains 19 passing over suitable guidepulleys to a cross-head 11 mounted on a rod connected to a piston moving in a cylinder 1. The space beneath the piston is connected through an inverted U-shaped air chamber 4, 5 to a pipe 12 leading to the outside of the boat. This pipe is adapted to be closed by a valve 16 actuated by a projection on the chain engaging a slot in the handle 17 as the piston rises and is adapted to be drained through a cock 13.
Patent GB-220563-A (GB)
Title: Methods of building pneumatic tires and product thereof
IPC: B29D30/06
Filed: 1924-02-12
Abstract: 220,563. Daum, G. W. Oct. 18, 1923, [Convention date]. Moulding wheel tyres. -Relates to the manufacture of tyre covers 3 having fender strips 5 at the sides and consists in laying strips 5 of uncured rubber in lateral grooves in the mould walls 1, then inserting the uncured tyre and uniting the parts by internal pressure and vulcanization.
Patent GB-1055097-A (GB)
Title: Improvements relating to data monitoring systems
IPC: G06T11/00
Filed: 1965-01-28
Abstract: In a data monitoring system, input terminals are selectively connectable each to any one of a number of data channels of different types and provide indications of the channels to which they are connected.  A monitor for physiological variables comprises a number of input channels which are scanned in turn cyclically to receive and process signals from transducers to measure body temperature, resipration rate, blood pressure and pulse rate.  Each channel has four lines only some of which will receive signals depending on the type of signal produced by the transducer currently plugged into the channel.  As each channel is scanned, the appropriate processing for its signals is selected by logic circuitry in accordance with the presence/absence of signals on two of the four lines of the channel. The temperature transducer uses a thermistor to produce a D.C. voltage which is digitised by the monitor by incrementing a counter until an analogue voltage equivalent to the counter reading equals the input D.C. voltage. Respiration rate is measured by feeding the pulses produced by a thermistor, on which the patient is breathing, to the counter for 30 seconds.  Blood pressures are measured by cutting off the flow of blood by pressurising an arm or finger cuff, and then reducing the air pressure in the cuff.  Flow of blood past the restriction is detected by means of variations in the transmitted intensity of light shone through the finger (in the case of a finger cuff) or mechanical movements of the arm cuff (detected by a pivoted arm, mirror and photocell), produced by the ebb and flow of blood as the heart beats.  The voltage from a strain gauge measuring the air pressure in the cuff is digitised as before when blood first gets past the cuff (giving the systolic pressure) and at the time of each subsequent systolic pulse of blood until the size of the pulses through the restriction (cuff) reaches a maximum (when the strain gauge reading gives the diastolic pressure).  Blood pressure measurement is prevented if the cuff air is initially not up to pressure, and a single pulse from the blood-flow photocell is ignored.  Pulse rate is measured by counting for 30 seconds the pulses produced by a photocell detecting light shone through the finger.  Manual switches are provided to allow selected channels to be skipped during scanning.  If the measured value of any variable departs from between preset upper and lower limits an alarm is given and the value printed out.  Print-out is also caused every, 2, 5, 15, 30 or 60 minutes or all the time, as selected by a manual switch, and also whenever a key is pressed. Print-out of the counter readings from one complete scan of the input channels is accompanied by print-out of the time obtained from a resettable clock, and also digitisation of a check voltage and comparison of the result with a check standard.