baber/WOPTO huggingface dataset:
Patent GB-1227448-A (GB)
Filed: 1968-06-05
Abstract: 1,227,448. Reverse osmosis; desalination of water. AMERICAN STANDARD Inc. 5 June, 1968, No. 26724/68. Heading B1X. Salt water is desalinated by passing it under pressure through a chamber defined by a tubular semipermeable membrane 10 supported on a porous member 12, the chamber being provided with spheres 22 which move freely in all directions adjacent the inner surface of membrane 10 and thereby reduce polarization effects. The salt water is pumped into the chamber through tube 16, and leaves through tube 18. Desalinated water passes by reverse osmosis through the membrane 10 and porous member 12, and forms drops 20 on the outside of member 12. The desalinated water drips into a collector. The motion of the spheres may be promoted by causing pulsating flow of the salt water. An elastomeric disc 24 at each end of the chamber amplifies the axial oscillation of the spheres. The spheres, which may be solid or hollow, may be made of glass or polyethylene.
Patent GB-1230678-A (GB)
IPC: C03C15/00
Filed: 1969-08-07
Abstract: 1,230,678. Strengthening glass. FIZIKOTEKHNICHESKY INSTITUT IMENI AF IOFFE AN-SSSR. 7 Aug., 1969, No. 39529/ 69. Heading B2E. [Also in Division C1] Glass is strengthened by (i) etching the surface of the glass with an acid solution, (ii) removing the acid, (iii) applying a heat-hardenable protective coating to the etched surface of the glass, and (iv) hardening said coating at not above 40‹C; the glass, after removal of the acid, being maintained in an atmosphere whose relative humidity is not above 50% and which contains no more than 100 dust particles, of maximum diameter 10Á per c.c., until the coating applied. The glass may be etched to a total depth of 150Á in stages, the acid being a 20% by weight hydrofluoric acid solution which is removed by washing with water. The coating may be a shellac varnish applied as an alcoholic solution. A hydrophobic organic compound, e.g. methyltrichlorosilane, may be applied to the glass surface before the coating.
Patent GB-1233100-A (GB)
IPC: H01M4/86
Filed: 1968-12-23
Abstract: 1,233,100. Fuel cell electrode. GENERAL ELECTRIC CO. 23 Dec., 1968 [26 Dec., 1967], No. 61073/68. Addition to 1,231,630. Heading H1B. A fuel cell electrode comprises a noble metal or noble metal alloy dispersed on substrate particles of chromium-tungsten oxide which are stuck together and to a current collector with an adhesive. The current collector may be a wire mesh. The substrate may also include particles of graphite or carbon with boron dissolved in it and boron carbide. The noble metal or alloy may be Pt or a Pt/Ru alloy. It may be applied by dispersing the substrate in a solution of a noble metal salt and decomposing the salt. The binder may be P.T.F.E. The electrode may be used as anode. The cathode may be a mixture of Pt and P.T.F.E. on a screen current collector both electrodes having their gas face coated with P.T.F.E. The fuel may be a mixture of H 2 , CO, CO 2  and CH 4 . The oxidant may be O 2 . The electrolyte may be H 2 50 4 .
Patent GB-1238285-A (GB)
IPC: G01N30/74
Filed: 1967-11-02
Abstract: 1,238,285. Photo-electric chromatographic detector. PYE Ltd. Oct.16, 1968 [Nov.2, 1967; April 19, 1968], Nos.49834/67 and 18740/68. Heading G1A. Eluted gases from a chromatographic column are fed through a niobium nozzle 3 to a chamber 5 in which the electrode 4 sets up an R.F. discharge 6 which is arranged not to touch the chamber walls. The eluted gases are identified by detecting spectral lines emitted by the discharge using a fixed or wavelength swept monochromator 8 or a filter in conjunction with a photo-multiplier or photo-cell 9. The intensity of a wavelength associated with the carrier gas is detected by a monochromator or filter 11 and a photo-transistor 12 and the measurement is used to control the R.F. generator 1 to keep the output of the discharge constant. The discharge may be stabilized by forming it between the nozzle 3 and an electrode co-axial therewith, Fig.4 (not shown).. The carrier gas, e.g. helium or argon with suitable trace gases preferably has a lower ionization potential than the atmosphere surrounding the nozzle 3.
Patent GB-1238513-A (GB)
IPC: H03L7/10
Filed: 1968-10-10
Abstract: 1,238,513. Synchronising oscillators. PYE Ltd. 8 Oct., 1969 [10 Oct., 1968], No. 48066/68. Heading H3A. In a synchronizing arrangement for an oscillator a signal derived from it is applied to an integrator having a variable time constant, the output of which constitutes one input of a first discriminator: a synchronizing signal is applied to the second input, the discriminator output providing frequency and phase control of the oscillator. The signal derived from the oscillator also forms one input to a second discriminator to the second input of which the synchronizing signal is applied: the discriminator output controls the time-constant of the integrator such that a large difference between the signals applied to the second discriminator causes the time-constant of the integrator to be long, whereas for a small difference it is short. The arrangement is described as applied to locking the vertical synchronizing waveform of a television transmitting station to the waveform from a remote camera with its own waveform generator. Local signals for synchronizing purposes are generated by oscillator 1, operating at twice line frequency. The locally produced video signal is applied to a local sync. separator 2 which produces an output of frame signals at 50 Hz which are applied to both inputs of a bistable circuit 3, and picture signals at 25 Hz which are applied to reset bi-stable circuit 3. The square wave output 4 from this is applied to an integrating circuit comprising resistor 5 and varactor diode 6, the output from which comprises a modified square wave 8 with leading and trailing ramps if the value of capacitor 6 is small and a sawtooth 9 if the value is large. This output is applied to one input of a phasediscriminator 7, the second input of which comprises narrow pulses 16 derived from pulse generator 14, the input of which comprises 25 Hz picture synchronizing pulses 12 from remote sync. separator 11. The output of discriminator 7 is applied over low-pass filter 15 to control the frequency of oscillator 1. The outputs from remote sync. separator 11 and bi-stable circuit 3 from the two inputs to a second phase discriminator 10, the output from which is applied over amplifier 13 to control varactor diode 6.
Patent GB-1239369-A (GB)
IPC: G06C7/02
Filed: 1970-04-13
Abstract: 1,239,369. Function control in calculating machines. BURROUGHS CORP. 13 April, 1970 [24 April, 1969], No. 17506/70. Heading G4B. A calculating machine includes a number of keys for initiating various machine functions, e.g. adding or subtracting, a number of operation control slides each of which is selectively movable from a central inactive position to one of two active positions depending on which-key is depressed, a cycle initiating slide arranged so as to be moved by depressing any key, and means responsive to movement of the cycle initiating slide to cause the selectively positioned control slides to initiate the chosen machine function. As shown in Fig. 4, the cycle initiating slide 85 and the control slides 115, 117, 119, 121 are supported in circumferential grooves formed in two shafts 31 carried by two bellcranks 23, 25 pivoted at 27 to a plate 21. The control slides are readily removable from the shafts 31 and as many as eleven may be positioned thereon according to the functions to be performed. The function keys, Fig. 5, each have a transverse part 86 extending over all the slides and which, on depressing the key, co-operates with the shaped upper edges of the control slides to position them according to the chosen function. The one inactive and two active positions of each control slide are determined by which of three slots defined by teeth 125 is above a bar 93. Depressing the key also brings part 86 against an inclined edge 87, Fig. 1, of slide 85, which shifts, to the left to withdraw a latch 103 from above a bar 105. This frees the bellcranks and they are rotated anticlockwise by spring 65 acting through a cam 35 and a roller 55 carried by bellcrank 25. The control slides are thus lowered and it is this downward movement which is used to initiate the machine function. Teeth 125 co-operate with bar 93 to hold the adjusted positions. Latch 95 is drawn under bar 105 by springs 77 and 101 to prevent return clockwise rotation of the bellcranks. Early during the machine cycle, a cam on the machine main shaft (not shown) co-operates with a roller 49, Fig. 1, to act through links 41, 43 to rotate cam 35 back to its initial position, where it is held by a latch 59. Late in the cycle, another cam on the main shaft coacts with a pawl 107, carried by slide 85 to shift the latter to the left and thus free latch 103 from beneath bar 105. A spring 79 rotates the bellcranks clockwise to raise all the slides; roller 55 disengages latch 59 from cam 35, which is then ready to act when the next key is depressed. Springs 77 and 101 reposition latch 103 above bar 105.
Patent GB-1253139-A (GB)
IPC: A23K1/16
Filed: 1969-04-03
Abstract: 1,253,139. Animal growth-promoters. AMERICAN CYANAMID CO. 3 April, 1969 [17 April, 1968], No. 17701/69. Heading A5B. The growth of poultry and farm animals is accelerated by orally administering thereto, e.g. in their feed or as a veterinary dosage, one or more alkali metal formaldehyde sulphoxylates and/or alkali metal formaldehyde bisulphites, optionally together with other growthpromotors, e.g. tetracyclines, penicillin, zinc bacitracin, erythromycin, sulphamethazine and bis-(5-nitrofurfurylidene)-acetone guanyl hydrazone, particularly effective combinations of the active substances being specified.
Patent GB-1257633-A (GB)
IPC: B29D35/00
Filed: 1968-05-16
Abstract: 1,257,633. Moulding footwear. G. B. BRITTON & SONS Ltd. 15 May, 1969 [16 May, 1968], No. 23300/68. Heading B5A. A mould assembly for moulding soles on to uppers comprises a plurality of welt plates 15, 16 mounted adjacent a sole mould member 10, 11, 30 and movable between a closed position (as shown) and an open position in which the moulded sole can be withdrawn from the mould, the welt plates being arranged to be automatically returned towards the closed position before each moulding operation commences. As shown, the welt plates are hinged about axes 19, 20 and biased to closed position by gravity or springs (not shown). The side mould members 10, 11 may be rigidly secured together or formed integrally with one another. Moulding may be by injection through an aperture 24 in the sole mould 30 or by vulcanizing and pressing a rubber blank inserted in the mould. In a modification the sole is moulded with the assembly inverted from the position shown in Fig. 3 and the welt plates are provided with counterweights (22), Figs. 4, 5 (not shown).
Patent GB-1259297-A (GB)
IPC: C07C63/26
Filed: 1968-12-19
Abstract: 1,259,297. Palladium-on-carbon catalysts. STANDARD OIL CO. 19 Dec., 1968 [20 Dec., 1967], No. 60436/68. Heading B1E. [Also in Division C2] Catalyst consisting of metallic palladium having a crystallite surface area upward from 0.6 m<SP>2</SP>/g supported on carbon having a surface area upward from 1000 m<SP>2</SP>/g is prepared by a process which comprises depositing a reducible compound of palladium on solid carbon support material having a surface area upward from 1000 m<SP>2</SP>/g and thereafter reducing the deposited palladium compound to metallic palladium in a hydrogen atmosphere at a temperature not greater than 538C. The metallic palladium may constitute from 0.1 to 10 weight per cent of the catalyst. The carbon, which may be in the form of filaments, rods, gauze, flakes, spheres, pellets or granules, preferably has a surface area of from 1500 to 5000 m<SP>2</SP>/g. As exemplified, the catalyst may be prepared either by suspending a gauze of carbon filaments in an aqueous solution of palladium chloride, drying the treated gauze and subjecting the dried gauze to reduction in a hydrogen atmosphere, for example at a temperature of 370C, or by mixing extruded carbon pellets with palladium hydrosol thereby to coat the pellets, drying the coated pellets and subjecting the dried pellets to reduction in a hydrogen atmosphere, for example at a temperature of 200-225C, or by stirring carbon granules in an aqueous solution of palladium nitrate, recovering the granules, drying the recovered granules and subjecting the dried granules to reduction in a hydrogen atomsphere, for example at a temperature of 455C. The catalyst may be used in the removal of formyl-substituted aromatic acid, for example p-formylbenzoic acid, from impure phthalic acid, for example terephthalic acid and/or isophthalic acid.
Patent GB-1264219-A (GB)
IPC: F16B33/00
Filed: 1969-06-06
Abstract: 1,264,219. Stud and socket fastenings. KNAPSACK A.G. 6 June, 1969 [8 June, 1968], No. 28712/69. Heading E2B. [Also in Division F2] A retaining bolt comprises a mushroom shaped head 1 formed from an elastically deformable material, such as neoprene, bonded as the result of a vulcanisation treatment, to the head 3 of a shank 2. As shown in Fig. 7 the retaining bolt is forced through a funnel shaped member to initially deform the periphery of the head 1 and then to allow the head periphery to expand over a plate 12 into a retaining position. The head of the shank 2 may be in the form of a disc ball a split and splayed end or be screw threaded. The exterior of the head 1 may be partly frusto conical or with or without a mesh screw threaded.
Patent GB-1265455-A (GB)
IPC: A23N7/02
Filed: 1970-05-06
Abstract: 1,265,455. Fruit and vegetable peelers. MAGNUSON ENGS Inc. May 6, 1970 [May 21, 1969] No.37373/71. Divided out of 1,265,454. Heading A4C. The subject-matter of this Specification is identical with that described in Specification 1, 265, 454 but the claims are concerned with the removal of peel and debris from the peeling zone.
Patent GB-1265663-A (GB)
IPC: B08B5/00
Filed: 1969-02-28
Abstract: 1,265,663. Cleaning windows, walls, ceilings, and floors. P. TANGUY, P. CARRE and J. LE BOULBOUECH. Feb.28, 1969 [Feb. 28, 1968; March 27, 1968; Sept.4, 1968], No.47215/68. Heading A4F. A device for cleaning flat surfaces such as those of windows, walls, ceilings, and floors, and adapted to be connected to a cleaning liquid supply and to a source of suction, and operable to clean and dry a flat surface when moved thereover, comprises a cup 25 arranged between a cleaning cup 30 and a hood 20 to define an annular suction opening 22, and an annular air discharge nozzle opening 24, the intermediate cup lip 1 projecting beyond the hood lip 2 and the cleaning cup lip 3, and the cleaning cup 30 having studs 11 projecting beyond the lip 1 for engaging the surface to be cleaned. A cleaning member, e.g. in the form of a rubber wiping blade 16, is resiliently mounted in the cleaning cup 30 and held away from the surface to be cleaned until it is advanced into contact with the surface to be cleaned by means responsive to the application of liquid to the device. Water is supplied through the handle 18, Fig.1 (not shown), of the device under the control of a manually operated valve and passes via channels 9, orifices 10a, (10b) in the cup 30, and orifices in the studs 11 to the surface to be cleaned, and also actuates a membrane 12 to move a resilient plate 15 carrying the wiping blade 16.so that the latter engages the surface to be cleaned. A suction generating unit is connected to the space 21 between the cups 25, 30, and exhaust air therefrom is supplied to the space 23 between the cup 25 and the hood 20. A modified device particularly for use in cleaning a floor is provided with supporting studs having rotary balls for engaging the floor surface.
Patent GB-1266517-A (GB)
IPC: F16B12/44
Filed: 1969-05-29
Abstract: 1,266,517. Furniture joints. RACE FURNITURE Ltd. May 7, 1970 [May 29, 1969; June 25, 1969], Nos.27142/69 and 32159/69. Heading A4H. An upright leg member 1 comprises an elongated element of H-section, e.g. extruded Al alloy, brass, bronze, cast Fe or steel, with a central web 100 and flanges 101, 102 with radiused outer surfaces, and it is joined to a foot member 2, e.g. gravity die cast, having two upright bosses 201, 202 separated by a slot 203, the web 100 being a push fit in the slot 203 and the engaging surfaces being secured by bonding with a heat-treated resin adhesive. All load bearing areas of the joint are radiused, except the inwardly facing opposed faces of the bosses 201, 202. Web 100 is machined short for exact mating to provide a chamber for the resin. A hole may be drilled in the foot (at 6), Fig.1 (not shown) to vent this chamber. The angles between the flanges 101, 102 and the web 100 and the mating faces of the bosses 201, 202 may be bevelled as at A. Specification 1,266,516 is referred to.
Patent GB-1288845-A (GB)
IPC: F15C1/08
Filed: 1970-08-28
Abstract: 1288845 Deflecting propulsion jets CHANDLER EVANS Inc 28 Aug 1970 [5 Sept 1969] 41622/70 Heading B7G [Also in Division G4] A monostable fluidic switch has a nozzle 20, Fig. 1, directing a supersonic fluid jet into a chamber formed by divergent walls 14, 16. The wall 16 is set back from nozzle 20 so that the jet attaches to this wall. Shock wave effects cause the jet to separate from and reattach to the wall, forming a vortex bubble as shown. A control port 22 opens into the bubble. By opening valve 24 fluid is admitted to the bubble causing the jet to attach to wall 14. When valve 24 is again closed the jet switches back to wall 16. As applied to control of the exhaust of a jet engine the control port 22, Fig. 2, is supplied with fluid at pressure PE. When switched to the unstable state the fluid jet is vented at 34 to ambient atmosphere PA, which may be vacuum. The flow from 34 may provide a transverse stream for steering purposes. A duct 36 creates a pressure in the divergent-walled chamber to ensure sufficient pressure gradient across the jet in the region of the bubble to ensure that the jet reattaches to wall 16 when valve 24 is closed.
Patent GB-1288945-A (GB)
IPC: G03G15/22
Filed: 1969-12-16
Abstract: 1288945 Electro-photographic processes, &c. RANK XEROX Ltd 16 Dec 1969 [16 Dec 1968] 61202/69 Heading G2H In an electro-statographic process allowing selective production of positive or negative copy from an original without changing the toner charge polarity, the photo-sensitive element comprises two photo-conductive layers sensitive in different spectral regions. As shown in the form of a drum 11, the element comprises first and second photoconductive layers 4 and 6, Fig.1 (not shown) on a conductive substrate 2 with optional insulative layers 3, 5 & 7. The drum 11 is cycled through the following processes:- a) uniform charging using corona device 12 simultaneously with uniform illumination with light which passes through the outer layers to produce free charge in photoconductive layer 4, b) imagewise exposure using similar light simultaneously with reverse charging using projector 38 or 39 and corona device 16, c) optional uniform exposure to light active in layer 4 to reverse the charge image and d) uniform exposure to light active in the outer photo-conductive layer 6 to erase the latent image. Known development, image transfer and drum cleaning processes are described. To effect the first charging step, corona charger 12 has an electro-luminescent panel 13 the inner face of which is transparent, electro-conductive and earthed. Reverse charging device 16 has an earthed electro-conductive glass plate 17 allowing projection therethrough of an image from either microfilm 42 moving at constant speed in synchronism with drum 11 or from a document placed on belt conveyer 46 moving at the same speed as the surface of drum 11. If a positive charge is applied to drum 11 initially then on development using a negatively charged toner a positive copy is produced from negative microfilm without application of step c) and a negative copy obtained when step c) is applied. In a second embodiment using a similar drum Fig.4 (not shown) an A.C. potential is applied to the second corona charger and the microfilm is arrested for projection of its image on to a Fresnel lens (82) from where it is projected on to the rotating drum (51) by scanning lens (84). For document  projection, Fresnel lens (82) is removed and replaced by the document which is scanned by lamp (85) and lens (84).
Patent GB-1295557-A (GB)
IPC: H01H33/835
Filed: 1971-05-28
Abstract: 1295557 Gas blast circuit breakers BROWN BOVERI & CO Ltd 28 May 1971 [7 Aug 1970] 18052/71 Heading H1N A gas blast circuit breaker has a main movable contact 11 and an arcing nozzle contact 10 both of which are pneumatically actuated by respective piston and cylinder arrangements. In the closed position, see Fig. 1, the opening of blast valve 9 enables the gas blast to pass from the high pressure chamber 8 through port 16a in fixed cylinder 16 and port 15a in movable cylinder 15 to move the main contact 11 by means of the piston-like projection on cylinder 12. The high pressure blast passing through port 12a, open due to the spring biased position of valve 13, maintains the position of the piston 10a and hence the contact 10, while the main contacts open. The piston 10a then moves with the cylinder 12 and cylinder 15 to the contact open position, a damping of the movement being provided between the lower surfaces of cylinder 15 and the cylinder 16. In the open position, Fig. 3 (not shown), the valve 13 blocks port 12a whilst allowing the high pressure gas, when valve 9 opens, to pass through ports 12b, 13a to the lower surface of piston 10a to close the nozzle contacts 5, 10. The high pressure gas, due to the alignment of parts 16b, (15c) also raises cylinder 12 and subsequently cylinder 15, back to the breaker closed position.
Patent GB-1298011-A (GB)
IPC: E02D29/14
Filed: 1970-01-02
Abstract: 1298011 Roadway component F WACHENFELD-TESCHNER 2 Jan 1970 [7 Jan 1969] 274/70 Heading F2P [Also in Division E1] An adjustable roadway surface component includes a frame 2 and a plurality of segments each having two wedge-shaped portions 5, 6. The portions are wedge-shaped in the direction of the periphery of the frame and may also be wedge-shaped in a direction perpendicular to the said periphery. The frame may be circular. The segments may be of plastics, artificial resin concrete, concrete or bituminous mixtures. The height of the frame is adjusted by relative movement of the portions 5, 6.
Patent GB-1302439-A (GB)
IPC: B62D5/093
Filed: 1970-10-28
Abstract: 1302439 Steering vehicles ADWEST ENG Ltd 21 Oct 1971 [28 Oct 1970] 51332/70 Heading B7H A steering arrangement for a motor vehicle includes a closed hydrostatic circuit including two rotary positive displacement pump-motors, one of the pump-motors being connected to the steering control, e.g. a steering-wheel, the other pump-motor being connected to at least one steerable road-wheel. In a first embodiment (Fig. 2) a steering wheel 6 is connected to a control pump-motor 9 by a shaft 10, the control pump-motor 9 being connected to a slave pump.motor 7 by conduits 11, 12, which form a closed hydrostatic circuit. The hydrostatic circuit may be connected to a reservoir 13 by a non-return valve 14. The slave pump-motor 7 has a shaft 8 which carries a pinion 5 which moves a rack 4 connected to the steerable road wheels S. The pump-motors, 7, 9, may be of differing capacity to provide a transmission ratio in the hydrostatic circuit. A duplicate control pump-motor 9<SP>1</SP> and steering-wheel 6<SP>1</SP> may be provided at a different location. The arrangement may include power assistance. Pressure fluid is supplied from an engine-driven pump 20 to a piston-and-cylinder 15, 16 via a control valve 19 (e.g. of the type described in Specifications 958,558 or 818,483) mounted on the shaft 8. In a modification (not shown) the control valve 19 is mounted on the steering- wheel shaft 10. In a second embodiment (Fig. 3) the slave pump-motor 7<SP>1</SP> is of much larger capacity than the control pump-motor 9<SP>1</SP> and has a radial arm 26 which is connected by link 27 to the steering arm 28.