baber/WOPTO huggingface dataset:
Patent GB-223983-A (GB)
Title: Improvements relating to exhaust steam injectors
IPC: F04F5/46
Filed: 1923-07-31
Abstract: 223,983. Metcalfe, R. D., and Metcalfe, J. C. July 31, 1923. Giffard injectors; regulating or controlling action.-Comprises the provision of a single operating lever for the remote control of steamoperated valves in the water and exhaust steam supply passages of a Giffard injector. The same lever also controls the flow of live steam at boiler pressure through the injector and, in one construction, also controls the flow of live steam throttled to atmospheric pressure. In another construction, however, the supply of throttled live. steam is controlled by an independently-operated throttle valve. A valve c, Fig. 8. in the water supply passage is held to its seat by a spring u and is opened by live steam pressure on the underside of piston w, the steam entering by a passages z. Figs. and 16. The exhaust steam valve b is held to its seat by live steam pressure, supplied through a passage m, acting on a piston k, Fig. 16, and is opened when the supply of live steam is cut off. Drain valves x, r, Figs. 8 and 16, are provided in the piston cylinders of the water and exhaust steam valves respectively. The valve r may he formed in the piston k, and in a modified construction the valve b may be closed by a spring and opened by live. steam pressure. The live steam and throttled live steam for the injector are supplied through tubes f, g, respectively. In the construction shown in Figs. 2 and 16, a separately operable throttle valve 25 is fitted in the tube g, but actuation of such throttle valve, in a modified construction, may be obtained from the common actuating handle a. The tubes f, z, m, communicate with the main steam supply passage h through a valve d and pilot e and ports 7, 9, Fig. 6, forming a hit-andmiss arrangement with a disc valve p, Figs. 3 and 7. The operating member 14, Fig. 3, of the valves d, e is secured to a crank 13 secured to a spindle 11 on which are mounted the disc valve p and the operating handle a. A ball valve 10 places the tubes z, n in communication with the atmosphere through orifice 8, recess 6 in the disc p, Figs. 6 and 7, a tube 3, Figs. 3 and 16, at the proper times during the cycle, which is deter. mined by the movement of the actuating handle a from the position shown in Fig. 2 to the position 24 through the successive stages 20 - - 23. Specifications 142,539 and 180,628 are referred to.
Patent GB-1471433-A (GB)
Title: Liquid fuel injection into blast furnaces
IPC: C21B5/00
Filed: 1974-05-03
Abstract: 1471433 Fuel injection into blast furnaces; liquid fuel burners ACIERIES REUNIES DE BURBACH - EICH - DUDELANGE SA 3 May 1974 [4 May 1973] 19648/74 Headings F4B and F4T [Also in Division C7] In a process for the injection of liquid fuel into a blast furnace, the fuel is injected in the region of the outlet of the blast pipe or the inlet of the. tuyere through atomizers 13 in the wall of the combustion head 2 and jets of oxygen are injected from outlets 23 upstream of the atomizers in the same combustion head. A conventional liquid fuel burner 6 may supply fuel through the centre of the tuyere. Mechanical guides may be fitted to the tuyere to intensify the mixing of the hot blast with the fuel and oxygen. The wall of the tuyere may be protected by a coating of refractory material in the zones most affected thermally.
Patent GB-326643-A (GB)
Title: Improvements in constructional toys
IPC: A63H33/10
Filed: 1929-01-29
Abstract: 326,643. Crosfield, S. Jan. 29, 1929. Mechanical constructions, details for building- up.-A constructional toy comprises girder or strutlike elements 1 detachably connected by connecting pieces 2. The connecting pieces each consist of a central part 2 having either parallel or tapered "fingers" 3. The girder or strut-like elements 1 have grooves 4 in their sides as shown, the inwardly projecting ribs so formed making, in conjunction with the bases of the elements, sockets in which the connecting pieces are gripped. Sheets 5 are inserted in the grooves 4 of the elements 1. Some of these sheets may have openings into which other sheets, cut to represent window frames, may be detachably fitted.
Patent GB-1357444-A (GB)
Title: Floating gate solid state storage device and method for charging and discharging same
Inventor: FROHMAN BENTCHKOWSKY D
IPC: H01L29/788
Filed: 1971-06-09
Abstract: 1357444 Semi-conductor devices INTEL CORP 9 June 1971 [15 June 1970 15 Jan 1971] 19774/71 Heading H1K In a semi-conductor storage device charge generated within an N (or P)-type substrate including two P(N)-type regions is stored on a floating gate capacitively coupled to the substrate and located between the two regions. In the device shown in Fig. 2 the charge to be stored is generated by avalanche breakdown at the junction between one of the P<SP>+</SP> (or N<SP>+</SP>) source or drain regions 22, 24 and the N (or P)-type Si or Ge substrate 20 and penetrates a layer 26 of SiO or SiO 2  to reach the floating gate 28, which may be of Al, Mo, Ge or N- or P-type Si. The gate 28 is preferably buried by a further oxide layer 30. Read-out is simply obtained by measurement of the resistance between A1 source and drain electrodes 32, 33, since the presence or absence of a charge on the gate 28 determines the conductance of the channel between the regions 22, 24. The charge may be erased from the gate 28 by X-rays, u.v. light or heat, but the last-mentioned method is undesirable due to the risk of damaging the device. In the modified device shown in Fig. 3 a bipolar transistor is constituted by the provision of an N<SP>+</SP> <SP>+</SP> region 45 in the P<SP>+</SP> region 44, which latter region becomes effectively the base region of the bipolar transistor, and an N<SP>++</SP> contact region 46 in the substrate 40. The floating gate 42 is charged in the same manner as the gate of Fig. 2, but read-out is achieved by applying a suitable potential to source electrode 52 while electrode 53 is grounded. The presence of a charge on the gate 42 will supply current from the electrode 52 to the base region 44 via a conductive channel 41, and will turn the bipolar transistor on to provide a low impedance path between the electrode 54 and ground.
Patent GB-657696-A (GB)
Title: An improved means for continuously ascertaining and/or determining the viscosity of fluids
IPC: G01N11/08
Filed: 1948-07-24
Abstract: 657,696. Viscosimeters. POSTANS, Ltd., and ARNOLD, M. H. M. July 24, 1948, Nos. 19834 and 26242. [Class 106 (ii)] The viscosity of a fluid such as an alkyd resin in a receptacle 3 is measured by observing the difference in pressure on either side of an orifice plate. The fluid is circulated by a pump 4 at constant pressure along a conduit 5 jacketed at 6 to ensure uniform temperature to an orifice plate 8 which is immersed in a liquid filled chamber 7 at a constant temperature. The fluid passes through the orifice 8a and is returned to the receptacle 3. On either side of the orifice plate 8, diaphragms or bellows 9 are provided enclosed by diaphragm chambers 10, 11 which communicate by way of pipe lines 10a, 11a, with a liquid manometer 12 which indicates the pressure difference existing between the two sides of the orifice plate and is calibrated in terms of viscosity. In a modification shown in Fig. 2, a Venturi tube 17 is substituted for the orifice plate the pressure difference being measured in a similar manner between the throat of the Venturi and the conduit immediately in front of it. The indicating manometer may be employed in conjunction with recording means to obtain a permanent record, or to actuate a control mechanism.
Patent GB-1133232-A (GB)
Title: Improvements relating to pressurized containers for liquids
IPC: B67D1/04
Filed: 1966-05-05
Abstract: 1,133,232. 232. Dispensing liquids by gaseous pressure. A. STANG-SCHMIDDING [trading as WILHELM SCHMIDDING]. May 5, 1966 [Dec. 2, 1965], No.19871/66. Heading F1R. In a pressurized liquid dispensing container, e.g. a domestic siphon for beer, the dip tube 1 is wholly or partially a flexible tube. The container is pressurized by a gas vessel within the container provided with pressure-reducing and non-return valves. The dip tube shown comprises a rigid portion 1 and a flexible portion 2 with a metal suction head 3. Portions 1 and 2 may be joined by a plug connection 4. The container discharge spout 5 is rotatable so that dispensing may be effected with the container vertical or horizontal. The spout 5 may be removed and housed in a compartment 7 in the container handle fitted with a hinged lid 9. Discharge valve 12 is actuated by a lever 13.
Patent GB-789240-A (GB)
Title: A method and apparatus for treating glass fabric
IPC: C03C25/10
Filed: 1955-07-08
Abstract: A glass fabric, prior to finishing treatment (see Group VIII), comprises yarns of glass fibres coated with a size consisting of tricresyl phosphate, ethylene oxide polymer and water.  The size may also include a small proportion of an alkylaryl polyether alcohol and/or a polyamine, a dibasic acid, a methyl ester of rosin, a phenolic resin, polyvinyl methyl ether maleic anhydride, a polybutene, an ethylene oxide-polyoxy propylene condensation product, a titanium glycolate or other acylate, polyvinyl acetate, polyvinyl methyl ether, a chlorinated alkane or a chlorinated petroleum wax. Other sizes are a carbon tetrachloride-kerosene mixture and a mixture of ethylene oxide polymer alone with water. After the size has been removed from the fabric in the finishing treatment, the fabric is coated with a finishing agent consisting of polyvinyl alcohol, a quaternary nitrogen compound obtained by reacting an amide with triethanolamine, stearate chromyl chloride and water.  Other finishing agents are (a) butadiene-acrylonitrile and stearato chromyl chloride; and (b) colloidal silica and tetrafluorethylene or polyethyl acrylate.  In one example, an emulsion of polyethyl acrylate and dye is applied at a first padder and dried at 275-300 DEG  F.  A dispersion of stearato chromyl chloride is applied at a second padder and dried at 345 DEG  F.
Patent GB-222265-A (GB)
Title: Improvements in or relating to motor cycles
IPC: B62M7/00
Filed: 1923-08-03
Abstract: 222,265. Wiseman, Ltd., A., and Weaver, T. H. Aug. 3, 1923. Motor-cycles; motors and gear-boxes, mounting or supporting.-The engine and the gear-box are mounted independently within the loop frame of a motor cycle in such a way that either may be removed without disturbing the fastenings of the other. The engine is carried by brackets d', d<2> attached respectively to the front and the bottom parts of the loop frame, and the gear-box f is suspended on a two-part bracket e extending forwardly from the rear part of the loop frame and downwardly to the bottom part. The gear-box may be secured to plates e<2> clamped to the bracket e. Forward extensions of the bracket e may carry the magneto g. Specification 217,730 is referred to.
Patent GB-601304-A (GB)
Title: Improvements in and relating to an apparatus for reproducing sound from a sound record
IPC: G11B3/095
Filed: 1943-11-29
Abstract: 601,304. Valve relay circuits. THIGGS, W. W. (Memovox, Inc.). Nov. 29, 1943, No. 19918. [Class 40 (vi)] [Also in Groups XXXVII and XXXVIII] In a gramophone having means for reversing the drive of the turntable to provide for backspacing, contacts 57 in the motor circuit remain closed for a short time when the forward-drive circuit is opened to provide an automatic backspacing so that when reproduction is resumed the last few words are repeated. Contacts 57 are controlled by a relay 58 connected in series with the secondary 65 of a mains transformer in the circuit of a valve 59. When contacts 71 of a motor-control relay is closed (for forward drive), the cathode and grid are connected together and the valve acts as a rectifier maintaining contacts 57 closed. When contacts 71 open, resistance 64 puts a blocking-voltage on the valve, but the discharge of condenser 63 maintains relay 58 energized for a short time. A second similar circuit in which the valve grid is connected to the cathode over back contacts of contact arm 71 provides for muting of the reproducing loud-speaker, effective during reverse drive, to be maintained for a short period (shorter than that provided by contacts 57) on switching over to forward drive to prevent reproduction until the motor is running at full speed.
Patent GB-329557-A (GB)
Title: Improvements in braking arrangements for spinning and twisting flyers
IPC: D01H1/244
Filed: 1929-06-28
Abstract: 329,557. Schneider, H. June 28, 1929. Spindle-driving apparatus; brake arrangements; stopmotions. - Spinning and twisting flyers are prevented from turning back on stopping by being braked when their rate of rotation falls below a given amount, the brakes being rendered inoperative by centrifugal force above such rate of rotation. Brake blocks 8 are held by springs 9 against the braking surface 11, which may be integral with the casing 1 of the electric-motor driving the flyer. In a modification shown at the right-hand side of Fig. 2, a lever 13 is pivoted at 12 and carries a weight 15, the braking surface 14 being under the pressure of the spring 9<a>.
Patent GB-478145-A (GB)
Title: Improvements in or relating to kitchen cabinets, and like articles of furniture
IPC: A47B77/10
Filed: 1936-07-18
Abstract: 478,145. Cabinets. NUNN, G. L. July 18, 1936, No. 19966. [Class 52 (i)] A table g, which can be swung into a recess between upper and lower cupboard structures in a kitchen cabinet, is pivoted externally of the recess so that it may swing through 180‹. The pivotal axis is preferably provided by a tubular support e for the upper cabinet and a catch plate j<1> and bolt k hold the table in position.
Patent GB-664118-A (GB)
Title: Improvements in electric control systems
Inventor: GIBBS ALBERT
IPC: G05B11/01
Filed: 1949-07-30
Abstract: 664,118. Automatic temperature control systems. KELVIN & HUGHES, Ltd. June 19, 1950 [July 30, 1949], No. 20070/49 Class 38 (iv). In an automatic control system, a moving element, responsive to deviation of a variable, varies the coupling between anode and grid coils of a valve oscillator, the anode current of which, in opposition to current from another source, energizes a device controlling the variable. In Fig. 3, a thermocouple 13 responsive to the temperature of a furnace (not shown) energizes a galvanometer 12, the pointer of which carries an element 4 controlling the coupling between coils 2, 3 of a parallelfed oscillator including a triode 1 of a doubletriode valve. The arrangement is such that when a predetermined furnace temperature is exceeded element 4 is so positioned that oscillation ceases so that the supply to the oscillator anode, which is obtained from a mains transformer 7 through a relay 6, increases, thereby neutralizing the effect on relay 6 of an opposing current obtained from another winding of the mains transformer through the other diodeconnected triode 16 of the double triode. Relay 6, being biased to the " off position, then moves to that position to cut off the energy supply to the furnace. A further supply to galvanometer 12 from a winding 14 on transformer 7 through a rectifier 15 and a high resistance, normally has little effect in view of the low thermocouple resistance, but if the thermocouple fails galvanometer 12 is influenced to cut off the energy supply to the furnace. In modifications a separate oscillator valve is employed together with a diode, metal, or electrolytic rectifier and the oscillator is seriesfed. In the modification employing a metal rectifier a relay is arranged in series with the oscillator valve heater so that if the latter fails the A.C. supply to the metal rectifier is broken resulting in cutting off the energy supply to the furnace. Control of two or more oscillators by a single galvanometer is referred to.
Patent GB-1159217-A (GB)
Title: Improvements in or relating to Gas Turbine Propulsion Engines
Inventor: CROSS WALTER GEORGE
IPC: F02K1/15
Filed: 1967-05-01
Abstract: 1,159,217. Jet propulsion engines. ROLLS-ROYCE Ltd. May 1, 1967, No.20124/67. Heading F1J. [Also in Division G3] A gas turbine jet propulsion engine comprises a variable-area jet nozzle, a power-operated device for varying the nozzle area, and means responsive to the rate of change of the pressure of fuel delivered to combustion equipment of the engine to cause the power-operated device to increase the nozzle area when the fuel delivery pressure increases at a rate exceeding a predetermined rate. The variable-area jet nozzle is adjusted by six hydraulic rams 26, Fig.2, mounted about the jet pipe and actuated by fluid supplied by a swash-plate pump 42. The rate of flow of the pump output (and therefore the pressure drop across the piston 30 of each ram 26 established by the leakage through an orifice in the piston) is controlled in accordance with the ratio of the compressor delivery pressure P 3  to the jet pipe pressure P 6  by means of a servomotor having a valve 55 operated by a master piston 60 exposed on opposite sides to the pressures P 3  and P 6  (or pressures functionally related to them) and a servopiston 50 which adjusts the angularity of the swash-plate 44, the effect being that if the pressure ratio alters, the area of the jet nozzle is adjusted to oppose the alteration. A needle valve 64 controlling a vent 63 to atmosphere causes the pressure to the left of the master piston 60 to increase when the master piston moves to the left under the influence of an increase in P 6 , thereby providing negative positional feedback opposing the leftward movement. Normally, a conical portion 64A of the needle valve is operative, but if P 6  increases rapidly (e.g., when full reheat power is applied), the leftward movement of the master piston 60 brings the cylindrical portion 64B into the vent 63. Thereafter, the flow restriction imposed by the needle valve 64 remains constant and the master piston 60 is able to move rapidly to the left to cause a rapid opening of the jet nozzle. When the flow of reheat fuel through a delivery duct 76 is increased rapidly (as when 'slam' acceleration is initiated), the increased pressure above a diaphragm 74 occurring before the pressure below it can be equalized through a restrictor 78 causes the diaphragm to move downwards to close contacts 71 to open a solenoid valve 68 downstream of a restrictor 67 to vent conduit 62 to atmosphere through a restrictor 69, thereby reducing the datum pressure P 3  applied to the master piston 60 to a lower value P 3 . Consequently, a rapid anticipatory increase of the jet nozzle area occurs before a substantial change in P 6  has occurred. The fuel displaced from chamber 75B by the downward movement of the diaphragm 74 passes via a conduit 81 to a sphere 80 containing a trapped volume of air 82, the air thereby being compressed.
Patent GB-337780-A (GB)
Title: Improvements in and relating to electric gramophone pick-ups
IPC: H04R11/08
Filed: 1929-07-02
Abstract: 337,780. Tyers, P. D. July 2, 1929. Gramophone pickups; magnetic instru.- ments.-A gramophone pick-up comprises an armature 1 provided with a needle clamping member 2 which. projects through a hole in the containing case 5 and is fitted with bearing shafts 3 surrounded by a rubber coating and held against the case 5 by a forked member 4 bolted to the case at 10. The diameter of the shafts 3 is preferably of the order of a fractional part of a millimetre whilst the thickness of the rubber coating is preferably not greater than ten-thousandths of an inch. The axis of the armature 1 and the needle hole in member 2 are preferably offset whilst shaft 3 does not lie on either of these axes. The armature 1 is roughly centred in a bobbin 13 by rubber blocks 17, 18, the bobbin being provided with a thickened portion 14 by which it is screwed to the base 16 of the case. A magnet 20 having tapered poles 24 co-operating with the armature is adjustably secured to the base by a stud 21, clamping bar 22 and nut 23. If desired, two magnets, one on each side of the armature, may be employed, a simple type of bobbin being preferably used in this case.
Patent GB-1118621-A (GB)
Title: Improvements in cement or plaster mixes
IPC: C04B28/02
Filed: 1964-05-14
Abstract: Cement or plaster mixes containing expanded polystyrene and a suspending agent are described. The plaster may be plaster of Paris or gypsum, and suitable suspending agents are carboxymethylcellulose, hydroxyethylcellulose, or a glue, gum or alginate.  The expanded polystyrene may be in bead or powder form, and a conventional aggregate, e.g. sand, may also be present.  The mixes may contain a foaming agent.
Patent GB-745683-A (GB)
Title: Improvements in or relating to coin-actuated article-delivery apparatus
Inventor: BROOKS NORMAN CHARLES
IPC: G07F13/10
Filed: 1953-07-21
Abstract: 745,683. Vending apparatus. CHADBURNS (LIVERPOOL), Ltd. July 20, 1954 [July 21, 1953], No. 20281/53. Class 27 In a coin-freed apparatus for dispensing beverages into cups. the cups C are stacked in guides 13 carried by a rotatable spindle 14 and the lowermost cup in each guide is separated from the stack at a point 24 immediately preceeding a piped delivery station and falls on to a partcircular platform 16a without disengaging fully from the stack so that it is carried round again to a gap 29 in the platform, where it is supported temporarily by a pivoted solenoid-controlled plate 30 before delivery to a platform 35. The stacks are supported by the rims of the third cups from the bottom engaging flanges 17, 18 on annular members 15, 16 and the lowermost cup and the one next above it are supported on similar lower flanges 19, 20. When a stack reaches gaps 21, 22 provided in these flanges, the lowermost cup falls on to a support 24 at the beginning of the platform 16a and the stack lowers sufficiently for the rims of the first and third cups above to line up cor rectly with the flanges 17-20. To ensure separation of the cups, the flanges may be of wedge, curved, inclined or other shape at 25 and 26 and wedges or spring fingers 27 may be provided on the underside of bne or both rails 19, 20; wedge or spring fingers may also act on the cup immediately above the detached cup. When the plate 30 is withdrawn from below the gap 29 in the annular member 16 and platform 16a the cup falls down a shoot 34 to the platform 35 which is accessible after opening a sliding door 37 and is preferably slightly tilted backwards. A coin inserted in the machine falls down shoots until it is trapped in a steeplyinclined shoot by a spring-loaded pusher that holds the coin against a switch for starting a motor 47 and the motor, through means such as a Geneva mechanism, indexes the spindle 14 through one step. Cams driven by the motor then operate switches to provide a holding circuit for the motor, to energize a solenoid to withdraw the pusher and thus allow the coin to drop to operate a solenoid 32 and release a cup by withdrawing the plate 30, and to operate a magnetic valve 42 and a solenoid-operated float valve or magnetic valve 43 to deliver water from a cooled reservoir 40 and essence from a measuring chamber 44 below a reservoir 39, the mixed liquids being led to a spout 46. Warning lights indicating that the supply of essence or of cups is exhausted may be operated by a float 48 in the essence reservoir and by a spring-loaded feeler that can extend into the guides 13 through slots 47. The stacks of cups are visible through vertical slots 49