baber/WOPTO huggingface dataset:
Patent GB-1060662-A (GB)
Title: Improvements in or relating to reflecting apparatus
Inventor: HUSSY WILLIAM
IPC: A63G31/00
Filed: 1963-10-26
Abstract: 1,060,662. Mirrors L.E.B. (FOOD PRODUCTS) Ltd. Oct. 21, 1964 [Oct. 26, 1963], No. 42305/63. Heading A4V. [Also in Divisions G2 and H4] A distorting mirror comprises a flexible sheet 2 of stainless steel or plastic, having a reflecting surface and bonded by adhesive to a rubber backing sheet 11, and pneumatically-operated pistons 5 to bend the sheet into different curved forms. The backing sheet has reinforcing metal strips 4 one of which has rollers 3 by which the composite sheet is suspended vertically from rails 7. A concave transparent sheet to reduce side reflection and buffer strips 1 of foamed rubber are provided in front of the sheet 2. The pistons 5 are urged from the cylinders 6 to engage the ribs 4, the sheet 2 being pressed against the buffer strips which return the mirror to planar condition when pressure is removed. The pistons 5 are operated, in a sequence determined by an electric circuit, by a master piston, which may be operated by a trip switch or a solenoid switch of coinfreed mechanism, to operate certain switches on its forward stroke and other switches on its return stroke to connect air pressure to the selected cylinders 6, the control valves being'of the self-return type. A switch may be included in the circuit so that the master piston makes two cycles before switching off or operates continuously. In modifications the pistons are operated hydraulically or the reflecting surface is distorted by electic actuators, cams or dies or reflects electro-magnetic or like waves.
Patent GB-1119292-A (GB)
Title: Process for extracting aromatic hydrocarbons from hydrocarbon mixtures containing same
IPC: C01B31/36
Filed: 1965-10-05
Abstract: The separation of aromatic hydrocarbons is effected by countercurrent extraction with formylmorpholine at 20-90 DEG  C., introducing a reflux of non-aromatic hydrocarbons boiling below the feed, contacting the extract with further lower boiling non-aromatics to obtain solvent and a solvent free hydrocarbon extract, evaporating off a major portion of the non-aromatics which are recycled for use as reflux and washing agent, evaporating the remaining non-aromatics with some low-boiling aromatics which are recycled to the extraction with the feed and recovering substantially pure aromatics as bottoms. The solvent may contain 0.5-10% vol. of water and is used in a volume ratio to feed of 1-5:1.  The ratio of reflux to feed may be 0.15-0.7:1 and of washing agent to solvent 0.5-1.2:1.  Pentane or butane may be used in recovering benzene, toluene and xylene.
Patent GB-1144574-A (GB)
Title: Control circuits of starting aids for internal combustion engines
Inventor: FITZGERALD GERALD
IPC: F02P19/02
Filed: 1965-10-08
Abstract: 1,144,574. Circuits for glow plug igniters. C.A.V. Ltd. Aug.23, 1966 [Oct.8, 1965], No.42726/65. Heading F1B. The circuit of a combustion chamber heater 1 includes a ballast resistor 2 in parallel with a normally closed thermally operable switch 5. When the manually operable switch 4 is closed, current flows to the heater 1 through resistor 2 and through switch 5 until a heater resistor 6 causes opening of switch 5, whereby the current to the heater is reduced.
Patent GB-921511-A (GB)
Title: Vulcanisation process
IPC: C08K3/10
Filed: 1961-11-29
Abstract: Natural or synthetic rubbers are vulcanized in the presence of a bis-phenol resin and a halide of a metal of Group IIa, IIIa or IIIb, or a heavy metal halide, the halide being formed in situ in the vulcanization mixture, before the addition of the bis-phenol resin, by reaction of a halogen donor with a compound of the metal. Specified rubbers are butyl, polybutadiene, polyisoprene and copolymers of butadiene and/or isoprene with acrylonitrile or styrene.  Fillers may also be present.  Specified halogen donors are vinyl or vinylidene chloride polymers or copolymers, polychloroprene, chlorinated or brominated butyl rubber, halogenated or chlorosulphonated polyolefins, a colloidal mixture of polyvinyl chloride with a butadieneacrylonitrile copolymer, a chlorinated paraffinic hydrocarbon, halogen containing factice, benzyl chloride, benzyl dichloride, heptachlorocyclohexane, lauroyl chloride, oleyl chloride, stearyl chloride, benzoyl chloride, N-bromosuccinimide and N-bromophthalimide.  The metal compound may be an oxide or salt of a weak acid, e.g. formic, acetic, lauric, stearic, benzoic, chromic or carbonic acid especially with zinc, aluminium or iron.  The bis-phenol may be plasticized by heating to above 70 DEG C. with a hydroxy fatty acid of more than 10 carbon atoms or a glyceride thereof, a fatty oil, a neutral reacting resin or an ester of a polyhydric alcohol with a mixture of dicarbonylic acids and fatty or resin acids. Solvents, e.g. mineral oil, polyethers, polyglycols, polyhydric alcohols and esters of polybasic carboxylic acids may also be present.  Specification 409,397 also is referred to.
Patent GB-1057180-A (GB)
Title: A semiconductor drive circuit
IPC: H03K17/725
Filed: 1964-10-21
Abstract: 1,057,180. Generating waveforms photo-electrically., LEEDS & NORTHRUP CO. Oct. 21, 1964 [Nov. 7, 1963], No.42864/64. Heading G1A. [Also in Divisions G4 and H3] A semi-conductor controlled rectifier circuit (see Division H3) is controlled by a chopper type comparator amplifier. The input signals comprise a variable signal and a reference (set) signal and these are connected alternately to the input of the amplifier transistor 39 by photosensitive resistors 26, 27 which are rendered highly conducting alternately by discharge lamps 28, 29 each energized from a respective half cycle of the A. C. supply. The amplifier input signal is accordingly an A. C. voltage having a phase sense and amplitude dependent upon the sense and magnitude of the difference between the two signals. Diodes 30 and 31 limit the difference signal magnitude.
Patent GB-1270484-A (GB)
Title: A receptacle for the safe-keeping of a key
Inventor: LAUER HUBERT
IPC: A45C11/32
Filed: 1970-09-08
Abstract: 1,270,484. Key receptacle. H. LAUER. 8 Sept., 1970 [26 Sept., 1969], No. 42937/70. Heading B8P. [Also in Division A4] A box, Fig. 2, containing a key is provided with a seal such that the key cannot be used unless the seal is first destroyed. In one embodiment, Fig. 2, the shaft 28 of a lead rivet passes through a hole 26 in the base 15 of a main part 12 of the box, through a hole 31 in the key 25 and then through a hole 29 in the lid 14 of the box; the portion of the shaft 28 extending beyond the upper face of the lid 14 being flattened to complete the seal. In another arrangement (Figs. 1A, 2A) the key 25 is engaged by its hole 31 over a tubular shaft (26<SP>1</SP>) provided at the location of the hole (26) in the base (15<SP>1</SP>), this box is otherwise similar in most respects to the box shown in Fig. 2. In the arrangement of Fig. 1A, 2A (not shown) the lid (14<SP>1</SP>) is sealed to the main part (12<SP>1</SP>) of the box by providing a lead seal (35) on the free ends of a lead wire (34) passed through the hole (26), the shaft (26<SP>1</SP>) and a hole (29) in the lid (14<SP>1</SP>). The lid 14 and the lid (14<SP>1</SP>) include a flange 22, (22<SP>1</SP>) which is engageable in a groove 19, (19<SP>1</SP>) formed in end wall 18, (18<SP>1</SP>) of the main part 12, (121) of the box. Alternatively the box could have a sliding lid. The box is formed from non- transparent material and may be labelled as by the card 24.
Patent GB-1040500-A (GB)
Title: Process for the production of hydroxylamine sulphate solution
IPC: B01J23/42
Filed: 1964-10-21
Abstract: In a process for the continuous production of hydroxylamine sulphate solution by the reduction of nitric oxide with hydrogen in aqueous sulphuric acid solution at temperatures of 30-85 DEG  C. in the presence of platinum metal-containing catalyst (e.g. 10% of platinum metal on activated carbon impregnated with silver nitrate) the concentration of hydroxylamine sulphate is kept at 0.5-5.3 equivalents per litre of reaction mixture and the proportion of hydroxylamine sulphate to sulphuric acid (both measured as equivalents) is kept at 0.2-2. Hydrogen and nitric oxide gases are preferably passed into the sulphuric acid solution at atmospheric pressure such that the volume ratio of hydrogen to nitric oxide is 2 : 1.  Aqueous sulphuric acid containing the catalyst may be supplied to the reaction vessel as the product is withdrawn so as to keep the ratio of sulphuric acid to hydroxylamine within the desired limits.
Patent GB-1144269-A (GB)
Title: Pipe bending machines
IPC: B21D7/12
Filed: 1967-09-22
Abstract: 1,144,269. Bending tubes. HILGERS MASCHINEN - UND APPARATE - BAUANSTALT m.b.H. 22 Sept., 1967 [22 Sept., 1966], No. 43200/67. Heading B3E. [Also in Division G3] In a pipe bending machine with a numerical control system, the numerical control system includes control means which are adjustable to compensate for characteristics of the machine and/or workpiece which would otherwise cause the bent form of a resulting bent pipe to differ from the form specified by the input data to the numerical control system. The controls are used to modify the movements of the machine to take account of spring-back of the pipe at the end of the bending movement or over-run of the pipe feeding carriage and to modify the position of the carriage relative to the pipe to allow for the physical size of the bending former.
Patent GB-1520400-A (GB)
Title: Device for cleaning and recovering heat from spent air fr-om a plant
IPC: F28G13/00
Filed: 1975-10-23
Abstract: 1520400 Heat exchanger device ARTOS DR ING MEIER WINDHORST KG 23 Oct 1975 [24 Oct 1974] 43516/75 Heading F4S A heat exchanger device (for recovering heat from, cleaning, and condensing vaporous impurities from, spent air from drying and heat treatment plants such as those used in the textile industry comprises double-walled upstanding plates 13 having cavities 13A therein through which coolant water passes upwardly being supplied and removed via supply and removal ducts 16, 16A, flexible hoses 15 and nozzles 14. The air passes through an inlet 11, downwardly through spaces 13B between the double-walled plates 13 and through an outlet 12. The plates 13 have corrugations 18. The plates at their top parts are suspended and spaced by holders 17. Differently shaped holders 17 are provided at the lower parts of the plates. When it is required to clean the plates, a cleaning agent can be sprayed into the air stream through a pipe 20. Alternatively the plates may be brushed. Access for a brush is provided by removing a cover plate 22A of the heat exchanger casing 10, shifting seals 19 and then pushing the plates to the right one after the other so that an interspace results.
Patent GB-1467284-A (GB)
Title: Ultrasonic wave generatorp
IPC: B06B1/02
Filed: 1974-10-09
Abstract: 1467284 Ultrasonic devices; automatic frequency control OKI ELECTRIC INDUSTRY CO Ltd 9 Oct 1974 43729/74 Headings H4J and H3A Ultrasonic waves are generated by driving a transducer with the output of a variable frequency oscillator and generating a signal in response to a change in the resonant frequency of the transducer. The output frequency of the variable frequency oscillator is varied to compensate for the resonant frequency change. The status of a binary counter connected between a detector of the frequency change and the variable frequency oscillator is changed when the signal is generated to allow the variable frequency oscillator to oscillate at the compensated resonant frequency. A detector circuit 5 (Fig. 4) has its input connected to the output of a rectifier 4 fed by a driven electrode 13b of a piezoelectric transducer 13. The detector circuit 5 comprises a sample hold circuit having F.E.T.s 5a, 5b, an oscillator 5c for generating a clock pulse and a comparator 5d. The comparator 5d compares the input voltage of the sample hold circuit with the output voltage and tests whether or not the input voltage to the sample hold circuit has changed during each cycle of the clock pulse of oscillator 5c. The detector circuit provides an output signal when the input voltage to the sample hold circuit decreases. Thus the output waveform (Fig. 6a) of the rectifier 4 is sampled at intervals and when it shows a decrease (i.e. at times T 1 , T 2 , T 3 ) this is indicated by the output waveform (Fig. 6b) of the sample hold unit. Fig. 6c shows the corresponding output waveform of the comparator 5d. The output signal of the comparator 5d is applied to a differentiator 6 (Fig. 4) and at times T 1 , T 2 , T 3  a corresponding pulse b, b<SP>1</SP> ... (Fig. 6d) is produced. This triggers through an OR circuit a binary counter 8 and changes the output of such counter 8 from 1 to 0 or vice versa (Fig. 6e). The output of counter 8 is integrated by an integrator 9 and passed through a voltage limiter 10 to a voltage controlled oscillator. Fig. 6f shows the waveform of the input to the oscillator 11. The signal from the oscillator 11 is amplified and applied to a driving electrode 13a of the transducer (Fig. 6g). It is such as to drive the transducer 13 at its resonant frequency. The transducer is piezoelectric. When the generator is first switched on a starter oscillator 14 is used, when necessary, to change the status of the binary counter 8. The sample hold circuit in the detector circuit may be replaced by a comparator (Fig. 8).
Patent GB-1393879-A (GB)
Title: Ice-making apparatus
IPC: F25C1/06
Filed: 1971-09-20
Abstract: 1393879 Ice-making J TKARAS 3 July 1972 [20 Sept 1971] 43777/71 Heading F4H Blocks of ice are formed in an open-ended vertical tube 1 cooled by an evaporator jacket 2 to which jacket warm condenser gas may be passed for harvesting the ice blocks, and the tube has spaced cylindrical rings or collars 7 of thermally conductive material which alternate with rings or collars 6 of heat insulating material, e.g. plastics. The ends of adjacent collars abut and the outer surfaces of the collars 6 are recessed over their length to form closed annular thermally insulating air pockets 8. Water is passed upwardly through the tube by a pump P from a header 10 and any water not frozen is returned to the header. For harvesting, the ice blocks are pushed out of the tube by the pressure of the water supplied by pump P. They are separated by a sieve 11 from the -water and pass to a container 12. Harvesting may be initiated by a thermostat on the jacket 2 or by a switch responsive to water flow, and the apparatus may be provided with shut down means responsive to the amount of ice in the container 12.
Patent GB-1370774-A (GB)
Title: Pipe installations
IPC: F16L3/233
Filed: 1971-09-15
Abstract: 1370774 Pipe spacer HAWKER SIDDELEY AVIATION Ltd 15 Sept 1971 [15 Sept 1970] 43972/70 Heading F2P [Also in Division E2] A pipe installation (e.g. on aircraft) wherein one or more anti-wear pads are employed each to ensure adequate separation between pipes or between a pipe and another member, each pad comprising a pair of pipe encircling straps each strap having a substantially arrow shaped tongue at one end and a limb extending therefrom which lies in alignment with the tongue when the strap is not in use encircling a pipe, the tongue being releasably secured to said limb by insertion through a hole in said limb, and the straps being integrally joined one to another at the regions between the limbs and the tongues. As shown in Fig. 1 the straps are at right angles. This embodiment may be used to separate pipes which cross at an angle, or lie parallel to each other, one strap being secured round each respective pipe (Figs. 3-5, not shown). The Fig. 2 embodiment is useful to secure the pad to a single pipe at a point where the surface of the pipe may be abraded (Figs. 6 and 7, not shown). The material of the pad may be polyurethane rubber.
Patent GB-1171535-A (GB)
Title: Catalytic Cracking of Hydrocarbons
IPC: C10G69/04
Filed: 1967-09-28
Abstract: 1,171,535. Cracking hydrocarbons. MOBIL OIL CORP. 28 Sept., 1967 [28 Sept., 1966], No. 44231/67. Heading C5E. A process for cracking a hydrocarbon oil to produce hydrocarbons of lower molecular weight comprises contacting said oil with a crystalline aluminosilicate cracking catalyst at a temperature of 1100-1350 F. and at a space velocity such that no more than 10% thermal cracking would occur if the catalyst were not present and at a catalyst to oil ratio no higher than 0.1. In examples, Zeolite X (in rare-earth form) and Zeolite Y (in ammonium form) were used to crack gas oils to gasoline.
Patent GB-1339296-A (GB)
Title: Method for the epoxidation of olefins
IPC: C07D303/04
Filed: 1971-09-28
Abstract: 1339296 Epoxidation of olefins ATLANTIC RICHFIELD CO 28 Sept 1971 [4 Dec 1970] 45124/71 Heading C2C The invention comprises a process for the epoxidation of olefins of general formula wherein R = H or C 1 -C 17  alkyl group and Y is H' halogen, CN or OH by reaction with cyclohexyl or amylene hydroperoxide at 50-140 degrees under a pressure which is at least the autogenous pressure at the reaction temperature in the presence of a molybdenum containing catalyst and as a stabilizer a secondary or tertiary monohydric C 3 -C 9  alcohol, the mole ratio of stabilizing alcohol to hydroperoxide being from 1 : 1 to 3 : 1. Specified hydroperoxides are cumene, cyclohexyl, amylene and ethylbenzene hydroperoxides, and many sec- and tert-alcohols are listed of which isopropanol and t-butanol are preferred. Olefins listed are propylene, butene-1, pentene-1, hexene-1, heptene-1, octene-1 and other α-olefins up to eicosene-1.
Patent GB-1318753-A (GB)
Title: Cover controlling apparatus
IPC: G03G15/04
Filed: 1970-09-24
Abstract: 1318753 Operating hinged members XEROX CORP 24 Sept 1970 [29 Sept 1969] 45567/70 Heading E2M [Also in Division G2] A support 10, e.g. for an original in a photo copying machine, is provided with a platen shield 23 the closure of which is controlled by first and second biassing means, there being a predetermined inclination of the shield to the support such that, if the shield is raised above this inclination, the first biassing means acts to maintain the shield in position, while if the shield is raised to a position below the predetermined inclination, the second biassing means overrides the first to return the shield to its fully closed position. Raising the shield 23 causes a crank arm 19 to rotate, thereby moving a slide 31 to the left (as seen) in a carriage 30, while a flange 40 of the slide moves in a fixed housing 41 thereby stretching a compression spring 47 which forms the first biassing means. This spring acts to hold the slide 31 and shield 23 in a stationary condition regardless of the position of the shield. Similarly lowering the shield 23 moves the slide 31 to the right. The second biassing means comprises a spring 59 acting on a plate 55 to move the latter upwards. Normally this movement is prevented by the slide 31, but when the slide is positioned corresponding to a shield position below the predetermined inclination, the plate 55 moves into an opening 50 and the pressure of the spring 59 causes the slide 31 to move to the right thereby lowering the shield 23.
Patent GB-1036660-A (GB)
Title: Control rod for nuclear reactor
IPC: G21C7/113
Filed: 1964-11-09
Abstract: 1,036,660. Reactor control rods. COMBUSTION ENGINEERING Inc. Nov. 9, 1964 [Dec. 30, 1963], No. 45641/64. Heading G6C. A reactor control rod is hollow and is filled with a particulate neutron poison material. Boron carbide is proferred, and the absorption characteristics of the rod may be varied along its length by varying the concentration of boron 10 isotope. The rod may be used for normal control and/ or emergency shutdown. The packed density is preferably at least 75 % of theoretical, this being achieved by vibratory densification and the use of various sizes of particle in specified proportions. The rod is formed from four L-shaped stainless-steel plates, two of which are dimpled as at 24 to space the plates apart. The plates are seam welded at 26, and the dimples 24 spot welded to the plane faces they abut. Stainless steel end portions 28, 30 are also welded to the can. Y or box section rods may be made in a similar manner.
Patent GB-1279120-A (GB)
Title: Packaging apparatus
Inventor: PITTS ROBERT WILLIAM
IPC: B65B43/28
Filed: 1969-09-19
Abstract: 1279120 Packing in bags R W PITTS 19 Sept 1969 [23 Sept 1968] 46262/69 Heading B8C In a packaging apparatus, the uppermost of a stack of collapsed bags 15 is opened by means of a reciprocable vacuum shoe 45 having holes 46 and being connected to a vacuum source 28 by tubular members 41, 42 and a tube 30, the tubular member 42 being telescopically received within the member 41 so that, when the shoe 45 engages a bag 15 and the holes 46 are thus blocked, the shoe rises to pull the top bag-wall past a tongue secured to an article guide 14. The member 41 is mounted on a cross-brace 34 which is vertically adjustable to vary the stroke of the shoe 45. The bags 15 are supported on a spring-urged pivoted plate 51 and have their ends engaged beneath a socket 50 the plate 51 being shaped so as to enable an operator to remove filled bags from the apparatus and place them on a conveyer 16. The product 13 is fed to the apparatus by a conveyer 12.
Patent GB-1040709-A (GB)
Title: An apparatus and a process for depositing semi-conductor material from the gas phaseon to a heated core of semi-conductor material
IPC: C30B13/20
Filed: 1963-11-22
Abstract: <PICT:1040709/C1/1> Silicon is deposited from the gaseous phase on to a heated elongate member of silicon in an apparatus in which said member is heated by an induction coil having two opposite substantially straight and substantially parallel discrete portions, the member being situated between the said portions with its length substantially parallel to them and to the paths along which the current flows in them.  The gaseous phase is preferably hydrogen and a halide of silicon.  The elongate member may be a rod which may be either stationary or rotated about its axis, or the member may be a thin rectangular plate.  The elongate member is preferably a monocrystal.  In the Figure a chamber comprising a bell 3 and closure member 9 has a holder 4 supporting rod 2 centrally therein.  Over the top of bell 3 there is fitted an induction coil consisting of one turn of metal strip having a rectangular cross-section and being bent as shown into the shape of a U with the free ends of the side limbs joined to diametrically opposite sides of ring 6.  The bell 3 can readily be inserted through the ring 6 and coil 5 is cooled by water passing through tube 7 in the direction of arrows 8.  The gaseous reactant stream is admitted through inlet 11 and waste products discharge through outlet 12.  The coil 5 is connected to a source of A.C. (not shown).  The rod 2 may be mounted horizontally or inclined at an angle of less than 90 degrees to the horizontal when both ends of the rod are then preferably held in quartz holders.  Before switching on the coil, the rod may, if necessary, be preheated by means of an external flame, a gas discharge or by means of radiant heat from reflectors.
Patent GB-1186808-A (GB)
Title: An Improved Portable Chair and Seat Device
Inventor: COHEN MORRIS ELIAS
IPC: A47D1/10
Filed: 1968-09-30
Abstract: 1,186,808. Seats. M. E. COHEN. 30 Sept., 1968, No. 46307/68. Heading A4J. A child's seat is unfoldable into a position, in which it grips the top and bottom edges of the backrest 43 of a vehicle seat. Thus, hooked members 3 and 37 are drawn together, by the unfolding action, which is terminated by contact of frame 13 with horizontal cross-bar (20). The hooked-shaped metal rod 37 can be located in any selected pair of holes (39) in backrest frame 7. On folding U-shaped frame 1 upwardly, about pivots (6), the upward motion is transmitted, by links 31, to fold seat frame 13 upwardly, about pivots (19). Instead of U-shaped padded guard 27 being pivotably mounted to fold upwardly with the seat frame, the guard may be detached, before the seat is folded (Fig. 4, not shown).