baber/WOPTO huggingface dataset:
Patent GB-461581-A (GB)
Title: Improvements in or relating to filtering liquids
IPC: B01D35/00
Filed: 1935-11-08
Abstract: 461,581. Filters. SWAN, A., and CARTER, B. C. Nov. 8, 1935, No. 30862. [Class 46] Petrol entering the container 1, Fig. 1, through a connection 3 is directed downward by a shield 5, which surrounds a filter element 24, so that any water mixed with the petrol is collected in a lower separable portion 2 of the container, which is provided with radial baffles 23 to prevent disturbance of the collected water. The filter element comprises outer and inner cylinders 7, 8 of gauze each supported on wire framework, the upper end of the cylinder 8 being closed by a disc 16 and the space between the cylinders being closed at the bottom by an annular member 17, which holds the cylinders together. The petrol filters inwardly through the cylinder 7 and outwardly through the cylinder 8, the filtrate being discharged through a connection 4. The element is held in position by a spring 19 which engages a projection 21 on the plate 16, and is held at its lower end in a recess 22 formed in the baffles 23. To prevenb air lock one or more apertures 27 are formed in the shield 5 and coarse gauze is used for the upper portions of the cylinders 7, 8. The part 2 is held against the part 1 by a lever 36 which is hinged to a pivoted link 33 at one end and engaged by a wing-nut 35 on a pivoted link 32 at the other end. In the form of apparatus shown in Fig. 4, inlet and outlet connections 43, 44 are formed on the body 42 of the container and the shield 46 is formed as part of a cover 55. A baffle 47 comprising a number of plies of corrugated metal strip is arranged in the space outside the shield.
Patent GB-820645-A (GB)
Title: Improvements relating to magnetic storage devices
IPC: G11C11/06
Filed: 1956-10-11
Abstract: 820,645. Magnetic storage devices. FERRANTI Ltd. Oct. 11, 1956 [Oct. 15, 1955], No. 30932/56. Class 38 (2). A magnetic storage device for digital computors comprises a ring core of ferrite material having a square hysteresis loop provided with input, output, and shift pulse windings and also provided with a heater for raising the temperature of the core at will. The heater may comprise a resistance wire or a hot fluid bath and may serve a number of cores. Impulses 19 on the input winding indicate binary digits 1, whilst no input at the predetermined time interval indicates 0. A train of shift pulses 20 are provided in such a direction as to reverse the flux in the core due to the pulses 19, and hence to provide output pulses 21 corresponding to the digit 1 and no pulse to indicate 0. The output winding is provided with a diode rectifier 18. The raising of the temperature improves performance by reducing the time taken for the flux to be reversed in the core.
Patent GB-873965-A (GB)
Title: Improvements in or relating to anchor-nut assemblies
IPC: F16B37/04
Filed: 1958-09-27
Abstract: 873,965. Anchor-nuts. TINNERMAN, G. A. Sept. 27,1958, No. 30932/58. Class 89(1). An anchor-nut comprises a nut body 4, Fig. 1, with wire clips 12 secured in grooves 9 in the upper face of the body, e.g. by welding or staking. In a modification, the grooves are formed either in the bottom or opposite side faces of the body. The nut is clipped over the edge of a plate &c. and may be located by a co-axial boss on the body bottom face engaging a counterbore in the plate &c., or by turned-up portions, e.g, 19, Fig. 10, of one or other clip.
Patent GB-1513741-A (GB)
Title: Adsorption process
IPC: C02F1/28
Filed: 1974-07-12
Abstract: 1513741 Adsorption process for treating effluents ROHM & HAAS CO 10 July 1975 [12 July 1974] 30951/74 Heading C 1C [Also in Division C2 and C5] The invention comprises an adsorption process for the removal of an adsorbate from a liquid stream in which the adsorbate is present in relatively low concentration wherein the adsorbant when loaded with adsorbate from the liquid stream to be treated is then more highly loaded with adsorbate from a stream in which the adsorbate is present in relatively high concentration before being regenerated by contact with eluant. The Examples refer to the removal of phenol from phenolic waste water, maleic acid from waste water, fatty acids from soyabean oil and caprolactam from waste water. As shown in the figure a liquid stream to be treated is passed via inlet 3 into column 1 packed with adsorbent beads 2 and provided with outlet 4. When the adsorbate content in 4 is unacceptably high the flow is stopped and bed 2 is super loaded with adsorbate of relatively higher concentration through line 11 and initially artificially via line 13. Regeneration is caused by passing an eluant into the bed of adsorbent beads 2 via line 5 and the adsorbate is separated as bottoms in distillation column 7 and may be recycled via line 11 or recovered through valve 12. The eluant may be recycled through lines 8 and 5 with optional addition of further eluant via line 13. Eluant containing low adsorbate concentration may be recycled via line 14 and valve 15  without distillation.
Patent GB-237161-A (GB)
Title: Improvements in or relating to calendars
IPC: B42D5/04
Filed: 1924-12-24
Abstract: 237,161. Bennet, J. F. Dec. 24, 1924. Addition to 214,550. Calendars.-In calendars of the type described in the parent Specification the carrying strip for the particular date marker is detachably secured to its slide by forming or shaping the strip and slide with interengaging parts. As shown in Figs. 1 and 2, the transparent strip 12 carrying the indicating frame 13 is bent over at 14 and is perforated at 15, 16. The slide 17, Fig. 3, is formed of thin sheet metal bent as shown to form a handle part 18, a front and back plate 20, 19, a bent up tongue portion 21, and lugs 22. The front and back plates are embossed at 23, 24 to engage the perforations in the strip when assembled. The slide is pressed on a guide bar 11 formed on the calendar card frame 8 between the pocket 9 for the cards and the top part 10 of the frame, the lugs 22 springing over the lower edge of the guide bar to hold ib in position. As applied to a calendar pad having a backing board the board is slotted to receive the slide 17, and in the case in which no backing board is provided the lower end of the strip is bent back and turned up to engage the date pad.
Patent GB-879653-A (GB)
Title: Improvements in or relating to the hypochlorite treatment of light hydrocarbon oils
IPC: C10G29/12
Filed: 1957-10-03
Abstract: A process for sweetening mercaptan-containing hydrocarbon oils boiling in ranges up to and including the kerosene range comprises mixing the oil with an aqueous solution containing sodium hypochlorite and sodium hydroxide, the quantity of sodium hypochlorite in solution being not greater than twice the theoretical requirement to oxidise the mercaptans to disulphides, under conditions such that at least part of the mercaptans is converted to disulphides with conversion of only part of the hypochlorite; withdrawing spent solution of reduced sodium hypochlorite and sodium hydroxide content, the spent solution containing at least 0.03 grammes per litre of available chlorine; generating sodium hypochlorite therein by direct chlorination with subsequent or previous addition of sodium hydroxide; and using the resultant solution to treat further quantities of oil.  The process may be effected batchwise or continuously.  The treating solution preferably contains 0.1 to 5, more preferably 1 to 1.5% weight of hypochlorite and 1 to 30, more preferably 15 to 20% weight of hydroxide, and is usually used in a quantity of 1.5 to 2 times the theoretical amount required for conversion of the mercaptans.  Usual reaction conditions are a contact time of 30 to 60 minutes and a temperature of 0 to 50, preferably 20 to 30 DEG C. In continuous operation it is necessary to remove a bleedoff stream of solution to prevent build up of sodium chloride; this stream may be used to pre-treat the feed and exhaust the hypochlorite content.  In an example the process is applied to kerosene containing 0.035% weight of sulphur.  23 lbs. of chlorine are supplied hourly to the hypochlorite regeneration step, producing 24.2 lbs. hypochlorite, the theoretical requirement being 13.3 lbs. Specification 750,802 is referred to.
Patent GB-1079912-A (GB)
Title: Distortion reduction circuit
IPC: H03K5/00
Filed: 1964-08-04
Abstract: 1,079,912. Data transmission. ROBERTSHAW CONTROLS CO. Aug. 4, 1964 [July 30, 1963], No. 31018/64. Heading H4P. A phase shifter receiver similar to that described in Specification 1,010,944 includes means for reducing the effects of jitter by sampling the received wave at twice the rate used before. In a system in which the phase shift is 360 M/N degrees (M and N are integers), 2N series of gating pulses are derived, each pulse train having a p.r.f. equal to the frequency of the received wave. For example, in the embodiment described N = 3, binary data being represented by 0 and 120 phase shifts. The received signal is limited and differentiated to provide positive and negative spikes at the zero-crossings in the received wave. After full wave rectification the resultant pulse train feeds a unit which develops pulses at a p.r.f. three times that of the pulse train. The output of this unit feeds a six-stage counter which provides six, i.e. 2N, series of outputs. These outputs feed gating circuits together with the positive and negative spikes from the differentiator, which produce output mark and space pulses which have half as much jitter as do the output pulses in the above-mentioned Specification, where the sampling is at half the speed. If the receiver loses sync. gate 67 gives an output which steps the counter until sync. is regained.
Patent GB-922262-A (GB)
Title: Load cells for weighing and force measurement
IPC: G01L1/22
Filed: 1961-08-29
Abstract: 922,262. Measuring electrically. STREETER-AMET CO. Aug. 29, 1961 [Aug. 29, 1960; July 17, 1961], No. 31087/61. Class 40 (1). A load cell comprises a deflectable metal plate 10 provided with strain gauges mounted between the centre and the edges of the plate where it is supported. Fig. 3 shows the strain gauge arrangement. Gauges 13, 14 mounted along a diameter are sensitive to the deflection; gauges 15, 16 at right angles to the diameter provide temperature compensation. The disc may be sealed into the base 21 by pitch or soldering. An alternative construction is shown in Fig. 4 in which the strain gauges are mounted below plate 32 and member 38 prevents excessive deflection of the plate.
Patent GB-776429-A (GB)
Title: An automatic screen printing machine
IPC: B41F15/08
Filed: 1955-11-01
Abstract: 776,429. Stencilling-apparatus; feeding and delivering sheets. HAUCK, W. C. Nov. 1, 1955 [Nov. 13, 1954], No. 31147/55. Classes 100(1) and 100(2) An automatic screen-printing machine comprises a flat stencil and a complementary flat bed for supporting material to be printed, which are movable relative tc a squeegee during printing, the stencil on the bed or back being adapted to be moved in a path or paths defined by one or more endless chains or belts. The sheet support bed 1, Fig. 1, and stencil 2 are each coupled at their opposite transverse edges by couplings 10a, 10b, 11a, 11b, to four pairs of endless belts 6c, 4c, 5c, 3c, all of which belts are rotated so that the support and stencil move to the right past a stationary squeegee for printing and are moved a part while remaining horizontal on their return run. Only one of the members need be coupled to a belt, thus in Fig. 8, the bed 1 is so coupled, and is also provided with a lug 34 which reciprocates the stencil 1 along a rail 32 on which it rests on rollers 33a, 33b members 37 being adjustable to vary the height of the stencil. Furthermore, only one edge need be coupled to the belt resulting in a pivotal movement to a sloping position on the return stroke. The bed 1, Fig. 5, is supported by rollers 25, 26 on a rail 23 pivoted at 24, while a coupling 10a connects it to the belt 4c. Alternatively, the bed 1 is secured to a rack 27, Fig. 6a engaging a gear 28. In another form, anextension of the bed 1 carries a roller running on a fixed rail, while the opposite edge is coupled to a belt, which runs over two belt wheels one of which may be longer than the other to produce greater inclination. The belt wheels 6b, 4a, 5b, 3a, Fig. 1, may be mounted on a common shaft. The squeegee can also be adjustable in height. Sheet-forwarders. A sheet 41, Fig. 11, is separated from a pile 42 by a reciprocating fusion roller 46. As the bed 1 moves into its upper run, a suction gripper 43 secured thereto engages the edge of the sheet and pulls it behind the bed on its upper run, the sheet resting on flexible belts 51 weighted at 53, Fig. 12..As the bed moves into its lower run a stationary stop 54 projects between the belts, and on the lower return run engages the sheet and moves it on to the bed. Sheetdelivery. As the bed supporting a sheet 39, Fig. 10, moves on to its lower run, the edge of the sheet is engaged through a slot in the bed by a suction arm 38, which is then swung clockwise to remove the sheet from the bed.
Patent GB-1451883-A (GB)
Title: Process and apparatus for removing material from a gas stream
IPC: B01D46/30
Filed: 1974-07-15
Abstract: 1451883 Cleaning gases BECKER & UDWIN Inc 15 July 1974 [30 July 1973] 31163/74 Headings B1R and BIT  A gas stream is cleaned by passing it downwardly through a loose mass 22 of particulate filter material having a particle size of not more than 1.4 mm weight mean diameter size contained in housing 24 and simultaneously passing through the bed in concurrent relationship a cleaning liquid, preferably water, and at intervals back washing the bed by passing liquid in a closed loop between 22, storage facility 50 and pump 52. During normal operation the liquid after leaving 24 passes through a separator 36, where the gas is drawn off via pump 32 through heat exchanger 40 and to atmosphere, and then is recycled via tank 37, heat exchanger 41, storage facility 42 and pump 48 to 24. The gases entering the cleaning unit eg from an incinerator 10 are cooled in heat exchanger 16, the air warmed thereby is used as preheated combustion air for the incinerator. The level of the filter particles in 24 is denoted by 26. A collector 30 eg perforated pipes collects liquid and gas passing down 22. A coagulant eg ferric or aluminium salts or polyelectrolytes may be added to the cleaning liquid.
Patent GB-450444-A (GB)
Title: Improvements in and relating to wireless transmission and reception
IPC: H04N7/045
Filed: 1935-11-30
Abstract: 450,444. Wireless signalling. RICHARDSON, H. A., Darley House, Marlboro' Road, Buxton, Derbyshire. Nov. 30, 1935, No. 31195/34. [Class 40 (v)] To produce frequency modulation the signals deflect a beam of electrons, which are incident on a fluorescent screen to produce radiation which traverses a screen TR of varying transparency and is incident on a photoelectric cell PC, the output from which is amplified and radiated from an aerial AB. The signals are fed to the deflecting-plates P<1>, P<2> of a cathode-ray tube CRA, and the transparent screen is so graduated that the current produced by the light passing through it has a sinusoidal wave form. For television an optical image incident on the cathode CA of a cell CT, which produces the signals, is split in discrete rectangular elementary areas.
Patent GB-1475585-A (GB)
Title: Pipe couplings
IPC: E03C1/06
Filed: 1975-06-30
Abstract: 1475585 Instantaneous water heaters ASSOCIATED ELECTRICAL INDUSTRIES Ltd 30 June 1975 [15 July 1974] 31265/74 Heading F4A [Also in Division F2] An electric water heater comprises a tank 1 having a double spiral immersion element and supplied with water from an inlet pipe 4 via a solenoid valve 5 and needle valve 6, a push button switch 8 simultaneously operating the solenoid valve and the immersion element, the latter via a thermostat 9. The rate of flow of water is adjusted by the control knob 7 of the needle valve 6, the heated water leaving the tank 1 via an outlet pipe 16 and plastics rose 17, a rotatable pipe coupling 15 allowing the pipe 16 to be moved in a horizontal plane. The control knob 7 and push button switch 8 protrude through apertures in an outer cover (not shown).
Patent GB-1303349-A (GB)
IPC: G03B27/54
Filed: 1970-06-29
Abstract: 1303349 Photo-electric control of enlargers PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES Ltd 29 June 1970 [2 July 1969] 31308/70 Heading G2A The density of a photographic negative 44 is measured by a photo-sensitive element 20 which forms one arm of a bridge circuit 15, the bridge is balanced by adjustment of resistor 21 a capacitor 36 is charged to a voltage dependant upon the measured density upon operation of changeover switches 13, 26, 30, and upon operation of a changeover switch 35, the capacitor is shunted by a discharge circuit 39, 40, 41 having constant current characteristics, the lamp 4 being energized during a printing step during the time taken for the voltage across the capacitor to change from its initial value to a final value. Tapping 29 is adjusted to allow for different types of printing paper. Indicator 37 is parallel with capacitor 36 is calibrated in exposure times. The contrast of the negative, and thus the type of printing paper required, can be measured by directing light from the lightest part of the negative and comparing the measured value with that obtained with light directed from the darkest part of the negative.
Patent GB-838141-A (GB)
Title: Improvements in or relating to synthetic resinous monofilaments
Inventor: CLARK BRIARS ANTHONY
IPC: D01D5/24
Filed: 1957-10-08
Abstract: <PICT:0838141/IV (a)/1> Synthetic resin lobed monofilaments for the making of brush bristles are formed by melt extruding three or more resinous monofilaments and allowing them to come into peripheral contact as they emerge from the orifices of the die-plate of the extruder so that they cohere to form a hollow lobed monofilament. The resin may be polystyrene or a styrene/acrylonitrile copolymer.
Patent GB-1319816-A (GB)
Title: Apparatus for the control of equipment
IPC: F01D17/26
Filed: 1970-06-29
Abstract: 1319816 Automatic control of speed or pressure; fluid pressure servo-control LUMMUS CO 29 June 1970 [30 June 1969] 31444/70 Headings G3P G3R Apparatus for controlling fluid motivated or motivating equipment comprises a sensor for monitoring a condition of the equipment, difference means for comparing the output of the sensor with a reference and producing an electrical error signal, and means for applying the error signal to control the flow of fluid through a vortex amplifier thereby to control the flow of the motivated or motivating fluid. Fig. 1 shows a speed control system in which a tachogenerator 22, which is coupled to a shaft 24 of a turbine 20, has a coil 28 providing a speed signal and a further coil 30 which is used to energize a frequency converter 4 and an operational amplifier 8 via a power unit 6. The amplifier 8 incorporates a set-point potentiometer 38 and produces an electrical signal indicative of deviation from a desired speed. The error signal is fed via line 42 to an electro-fluidic transducer 10 where it is used to deflect the fluid from a jet 46, thus altering the flow distribution between outlets 54, 56 in a fluid distributor block 12. The flows from outlets 54, 56 are used as tangential control flows of vortex amplifiers 14, 16, the outputs of which are respectively connected to the two ends of a cylinder 80, thus controlling the position of a piston 82 which is coupled to a turbine feed valve 84. The amplifier 8 is preferably provided with means to increase the sensitivity to error signals changing faster than a given rate. A vortex amplifier may be used to control fluid flow through equipment without the intermediary of a valve. Fig. 4 (not shown) shows a speed control system in which a vortex amplifier (194) controls the flow through an intermediate stage of a turbine, while Fig.2, (not shown), illustrates control of the rate of extraction from an intermediate turbine stage, the sensor being a fluid electric transducer (90). In addition to a turbine speed control system, vortex amplifiers (120, 122) Fig.3 (not shown), may be used to control a bleed-off valve (126) to ensure that the output flow from a pump (134), which forms the turbine load, does not fall below a pre-set level. The speed control may be omitted and a minimum flow rate through a pair of rotary compressors (522, 524) Fig. 5 (not shown), arranged in tandem on a turbine shaft (526) may be ensured by using vortex amplifiers (518, 520) in recycling circuits between the output and input of each compressor.
Patent GB-1078421-A (GB)
Title: Nozzle having a silencer effect for jet propulsion engines
Inventor: BARTEK Joseph
IPC: F02K1/38
Filed: 1964-08-04
Abstract: 1,078,421. Jet propulsion plant. SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Aug.4, 1964 [Aug. 2, 1963; June 8, 1964], No. 31473/64. Heading F1J. A jet propulsion nozzle having a silencing effect comprises a duct, a number of flaps each hinged to the downstream end of the duct so as to pivot about an axis normal to the duct axis, a number of open-ended tubes each lying substantially in a diametrical plane of the duct whilst having its upstream end outside the duct and flap assembly and its downstream end downstream of the assembly and means for moving the downstream ends of the tubes nearer to and further away from the duct axis. In the embodiment of Fig. 2, a nozzle comprises a duct 1 to which there are articulated flaps 2 producing a variable area outlet 2a. Some of the flaps are apertured at 3a to receive elbowed tubes 3 which are welded to these flaps. With the flaps occupying the position illustrated, air flows from the outer periphery of the nozzle, through each tube, and is discharged at 3c into the jet. The flaps, and therefore the tubes, may be swung radially outwards so that the tubes do not penetrate so deeply into the jet. In a modification, Fig. 1a (not shown), the tubes have an elongated profile in cross-section, a linkage, operated by jacks, is shown for pivoting the flaps, and the upstream end of each tube is provided with guide vanes. In the embodiment of Fig. 5, the silencer tubes 3 may be moved independently of the flaps 2. In the position shown, the silencer is effective with the downstream end 3c of each tube penetrating into the jet j. Jacks 5 may be operated to move a ring 4 axially over the duct 1 so as to withdraw the tubes 3 completely from the jet through the engagement of pins 10 in slots 11 in brackets 12. In a modification, Figs. 9-12 (not shown), a modified mechanism facilitates a greater amplitude of pivoting of the tubes. In another modification, Figs. 13-17 (not shown), a further modified mechanism, in which the ring (4) is guided by slots (13) in the brackets (12), facilitates the operation of the tubes and the operation of the flaps by one and the same set of jacks (5).