baber/WOPTO huggingface dataset:
Patent GB-1408412-A (GB)
Title: Multifunctional peroxydiesters
IPC: C07C409/40
Filed: 1972-08-31
Abstract: 1408412 Peroxy group-containing polymers OWENS-ILLINOIS Inc 31 Aug 1972 [1 Sept 1971] 40364/72 Heading C3P Polyfunctional peroxydiesters are prepared by reacting a salt of a linear copolymer containing carboxy or carboxylic anhydride groups with an acyl halide, R 9 -COX, in the presence of hydrogen peroxide or ozone, whereby at least some of the carboxyl groups are converted to groups -CO-O-O-CO-R 9 , R 9  being C 1 -C 9  alkyl, C 1 -C 4  alkenyl, aryl or substituted aryl and X being a halogen. The amount of acyl halide used is from 4 moles per polymer chain up to the stoichiometric proportion. The products may be used to initiate polymerization of ethylenically unsaturated compounds, free radicals being generated from them by heating or by irradiation. They may be prepared in situ in the polymerization vessel, though generally before introduction of the monomers. The polymer chain of the initiator is stated to become incorporated in the final product of such polymerization reactions. Examples describe the preparation of peroxydiesters from acetyl chloride,. H 2 O 2  and sodium salts of copolymers of ethylene and acrylic acid, ethyl, vinyl, ether and maleic anhydride, styrene and maleic anhydride, ethylene and maleic anhydride or styrene and acrylic acid. Polymerization of vinyl chloride is also described, using a product of the invention as initiator.
Patent GB-1526972-A (GB)
Title: Multi-storey buildings
IPC: E04H1/04
Filed: 1975-10-02
Abstract: 1526972 Multi storey buildings STAB D'ETUDES ET DE RECHERCHES ARCHITECTURALES 2 Oct 1975 [2 Oct 1974] 40375/75 Heading E1A A multistorey building comprises a main part 'a' in the shape of a horizontally elongate rectangular prism and one or more secondary parts 'b' 'c', external to the main part and not sharing any wall or walls therewith, and being connected to the main part by a passage, the secondary parts including all means for personal access between the floors of the building and all means for conducting services to the floors of the building. The secondary parts may contain a fire escape stair-case 1 with an air-tight door, a firefighting installation 11, a goods lift 2, passenger lifts 5, sanitary installations 6, rubbish shute 7, and shafts 8 containing conduits and wires for conducting services. The secondary parts may be joined to the main part by footbridges.
Patent GB-966516-A (GB)
Title: Improvements in magnetic amplifiers
Inventor: LONG JOHN JAMES
IPC: H03F9/04
Filed: 1959-11-30
Abstract: 966,516. Magnetic amplifiers. W. H. SANDERS (ELECTRONICS) Ltd. Oct. 28, 1960 [Nov. 30, 1959], No. 40636/59. Heading H3B. A least one Zener diode is shunted across the rectifiers of an auto-self-excited parallel transductor to limit the current through the load. Each rectifier 9, 10 (Fig. 2) may be shunted by its own Zener diode 11, 12. Alternatively, one Zener diode 15 (Fig. 4) may be shunted across both rectifiers 9, 10. A choke coil 16 smoothes the unidirectional voltages set up across the rectifiers. Where there are two Zener diodes, there may be two choke coils 13, 14, Fig. 3. Specification 508,847 is referred to. Reference has been directed by the Comptroller to Specification 890,253.
Patent GB-1434628-A (GB)
Title: Inductive heating apparatus
IPC: H05B6/10
Filed: 1973-08-30
Abstract: 1434628 Rotary conveyers AEG-ELOTHERM GmbH 30 Aug 1973 [13 Sept 1972] 40835/73 Addition to 1213905 Heading B8A [Also in Division H5] An induction heating system in which rotation of a shaft 14 acting via levers 20, 14, 17 and roller 18 rotates stepwise a grooved disc 3 to bring workpieces 2 held between legs 1 of a pair of spiders to a work station, and also rotates a cam 13 that acts via levers 11, 8 and shaft 10 to raise and lower inductor 7 from and to the workstation (see Specification 1,213,905) has a second cam 23, shaped such that the radius within a predetermined range varies continuously as a direct or inverse function of the cam angle, that co-operates with a follower roller 24 on lever 11 and is driven by a geared motor 21 provided with a limit switch that will stop the geared motor when the second cam is in a position to arrest the fall of the inductor to a heating position. The second cam may be driven counterclockwise to follow lever 11 when the absence of a workpiece is detected between legs of the spiders approaching the work station and to stop when lever 11 is in its highest position. Shaft 15 then continues rotating without inductor 7 descending on an empty work station. Cam 23 is rotated again when, at the appropriate time in a work cycle, a workpiece is detected in the correct position. The normal cycle is then followed. The second cam 23 may also be driven in either direction to raise the inductor 7 to any desired position for adjustment while cam 13 remains stationary.
Patent GB-922745-A (GB)
Title: Process and apparatus for carrying out the determination of the fineness of textile fibres
IPC: G01N33/36
Filed: 1960-11-29
Abstract: 922,745. Determining fineness of textile fibres. F. HADWICH. Nov. 29, 1960 [Dec. 23, 1959], No. 40994/60. Class 106 (2). In apparatus for determining the fineness of textile fibres by measuring the resistance offered to a current of air by a test flock compressed to constant packing density in a measuring chamber 6 with perforated end and perforated piston, a weak current of air is applied to the flock through a pipe line 2, under control of a valve 3, to obtain a measurement on a meter 7 and, after rotation of a three-way cock 5, a strong air current is applied through pipe line 4 to eject the flock and clear the ducts and chamber. The dispersion air currents may be derived from a single reservoir 1 containing air under pressure or from separate vacuum and pressure reservoirs (Fig. 2).
Patent GB-914717-A (GB)
Title: New n-heterocyclic compounds
Filed: 1959-12-04
Abstract: The invention comprises 3-substituted 10.11dihydro-5H-dibenzo[b.f]azepine, and 3-substituted 5H-dibenzo[b.f]azepines of general formula <PICT:0914717/IV (b)/1> where X represents the ethylene or vinylene group and Y, chlorine or bromine which are prepared by reacting a 5-acyl iminodibenzyl in the presence of a Friedel Crafts condensing agent, with an acetyl halide or acetanhydride, converting the resulting 3-acetyl-5-acyl by hydrazoic acid into a 3-acetamido-5-acyl imino-dibenzyl, partially hydrolysing to 3-amino-5-acyl imino-dibenzyl converting into a diazonium salt, reacting with cuprous halide and hydrolysing the product to the dihydro azepine, and halogenating, reacting the 3-substituted 5-acyl-10-halogen iminodibenzyl to split off hydrogen halide and hydrolysing the 3-substituted 5-acyl iminostilbene to the 3-substituted-5H-dibenzo azepine where X is the vinylene group.  The reaction product of the 3-amino-5-iminodibenzyl diazonium salt with cuprous halide according to Sandmeyer, may be treated with N-bromosuccinimide or with 1.3-dibromo-5.5-dimethyl hydantion, N-chlorosuccinimide, N-bromophthalimide, or Nbromoacetamide to form a 3-substituted 5-acyl-10-halogen iminodibenzyl.  The splitting of the hydrogen halide and the hydrolysis stages may be performed concurrently. An alternative process for the preparation is by the hydrogenation of 3.7-dihaloiminodibenzyl in the presence of a catalyst such as Raney nickel, or noble metals, and an inorganic or organic base in solvents such as methanol, ethanol, methoxyethanol and dioxane. The compounds may be used as intermediates in the production of compounds substituted in the imino group having therapeutic properties.  Specification 777,546 is referred to.
Patent GB-1405903-A (GB)
Title: System for processing signals representing colour images
IPC: H04N1/387
Filed: 1972-09-06
Abstract: 1405903 Television TECHNICOLOR Inc 6 Sept 1972 41373/72 Heading H4F In a "chroma key" or "image matting" system a control signal is derived which corresponds to the difference between a selected colour component and the sum of the remaining two colour components in a first video signal and this control signal is used to control the degree and area of suppression of the first video image and, in complementary fashion, of a second video image. In Fig. 3, the first video signal is passed to a rotary potentiometer 26 having two wipers 75, 76 producing blue (B) and red + green/2 (R + G/2) signals, respectively. The difference between them is formed in a differential operational amplifier to produce an output 2B - (R + G). The value 2B is preferred to avoid distortion of the white video. The resulting signal is clipped below ground to leave a pure blue vector control signal which is amplified relative to an adjustable black level and is supplied to a foreground suppressor 27 Fig. 5 on line 34. The pure blue vector control signal is also passed through a second, similar, amplifier channel which includes a background gate clipper to ensure a solid zero reference, and forms the input signal on line 35 to background suppressor 31. Relays are included in the two control signal channels to enable either the foreground or the background video to be passed without keying (matting), for test purposes. The foreground suppressor comprises red, blue and green differential amplifiers 115, 116, 117 to which the control signal on line 34 is supplied as a second input. The clipped amplified outputs are supplied to potentiometers 127, 128, 129 in adder circuits 44. The background suppressor comprises red, blue and green multipliers 130, 131, 132, each receiving as a second input the control signal on line 35. The outputs are supplied through centering circuits 140, 141, 142 to potentiometers 152, 153, 154 in adder circuits 44. The signals from corresponding pairs of potentiometers are added to form the output signals R, B, G in lines 45, 46, 47 for reproduction. Multipliers 130, 131, 132 preferably comprise integrated circuit multipliers (Fig. 6, not shown). The differential amplifiers 115-117 may comprise multipliers, and the multipliers 130-132 may comprise differential amplifiers. Film matting system (Fig. 7).-Foreground and background negatives 200, 201 are synchronously scanned by R, B and G laser beams 226. The signals picked up by detectors 202, 203 are passed through processors 204, 205 where the colour balance is controlled in accordance with signals derived from punched tapes. The resulting video signals are supplied to keying (matting) circuit 211, of the kind described above. Enhanced signals are applied to modulators 228, 229, 230 which modulate the laser beams for reproduction of the matted image on film 216.
Patent GB-1401776-A (GB)
Title: Electronic timepiece
IPC: G04F5/00
Filed: 1972-09-07
Abstract: 1401776 Electronic timepieces SUWA SEIKOSHA K K 7 Sept 1972 [8 Sept 1971 9 Sept 1971 10 Sept 1971] 41582/72 Heading G3T A wholly electronic timepiece (e.g. a watch) having liquid crystal or light-emitting diode digital display, is provided with not more than two manually operable members (coupled to mechanical switches) for selecting part of the time indication to be corrected and resetting to zero or correcting the selected parts of the time indication individually. The switches may additionally be arranged for simultaneously resetting all of the parts of the time indication to zero. In an embodiment Fig. 9, a frequency divider DIV feeds signals at 1Hz to divider counters 1' to 5' for operating the hours, tens of minutes, minutes, tens of seconds and seconds respectively of the time display 7' in known manner. When setting, a signal applied at terminal S-R is passed by a switch Ss to a rotary selector switch So' detailed in Figs. 10 to 14 (not shown) and comprising an axially movable rotatable stem. With the selector wiper engaging a contact Sr the signal will reset all of the counters 1' to 5' and all of the parts of the time display to zero. With the wiper at a contact Sa, the hours and tens of minutes will be zeroed. Similarly the minutes will be zeroed with the wiper at contact S13 and so on. If the switch Ss is now opened and closed periodically, the appropriate part or parts of the time display can be advanced to the correct time. Fast correction of the time can be achieved by applying the output of the divider DIV selectively to the minutes and second counters Fig. 18 (not shown). In an arrangement to prevent overshoot when correcting the displayed time, Fig. 19 (not shown) a desired time indication is read into the timepiece and is continuously compared with the actual indication being corrected. Thus as shown in Fig. 20, each counter of Fig. 19 comprises two sets of binary flip-flops A, B, C, D and a, b, c, d, each set constituting a <SP>1</SP>/ 10  sub-dividing circuit X, Y respectively. For example if the desired 1-seconds indication is "5" then a setting signal is applied to terminal Sb" which sets the subcircuit flip-flops a, b, c, d for 0, 1, 0, 1. A correcting signal is then applied at Sc" and is fed to flipflops ABCD via a gate GY. When the outputs of ABCD coincide with the outputs of a, b, c, d respectively, the outputs of gates Ga to Gd and hence of gate Gw, go to "high". The output of Gw together with a control singal at Sa" make gate Gx output go high. Thus a gate Gz is caused to block correcting signals to ABCD sub-circuit and overshoot is prevented. The divider counter circuits 2', 3', 4', 5' are constructed in like manner to that of 1', in Fig. 20.
Patent GB-1070775-A (GB)
Title: Separation process
Inventor: GOLDUP ALAN
IPC: C07C7/152
Filed: 1964-10-13
Abstract: Hydrocarbons are separated by selective complex formation with a trisalicylide compound having the basic structure <FORM:1070775/C4-C5/1> preferred is tri-o-thymotide.  Naphthenes in particular may be separated from other hydrocarbons. The complex may be decomposed by melting, dissolving in a solvent or purging with an inert gas at elevated temperature.ALSO:Complexes are formed between hydrocarbons and tri-salicylide compounds having the basic structure: <FORM:1070775/C2/1> which may contain substituents; preferred is tri-o-thymotide.
Patent GB-1428812-A (GB)
Title: Protective articles and method of making the same
IPC: B29C48/07
Filed: 1973-02-13
Abstract: 1428812 Vehicle trim strips CUSTOM TRIM PRODUCTS Inc 13 Feb 1973 [20 March 1972] 41875/75 Divided out of 1428811 Heading B7B [Also in Division B5] The description is substantially identical to that of Specification 1,428,811 but the claims are directed to the process of extruding a geometrically solid section which may comprise the vehicle trim strip of Specification 1,428,811 but may also have other applications. The extruded section of Fig. 8 comprises unfoamed and foamed portions 37, 10<SP>1</SP> which may respectively comprise resilient and impact resistant soft polyvinylchloride, and cushioning foamed polyvinylchloride/rubber mixture. The foamed portion 10<SP>1</SP> may be absent at spaced intervals along the section, at which the unfoamed portion 37 is folded over and sealed to provide the closed ends of a vehicle bumper, or a chain rail or seat cushion, and the portion 37 may be given a finish simulating walnut wood, or leather. Alternatively, the unfoamed portion 37 may extend only horizontally along the Fig. 8 section, e.g. for abutment with an adjacent section, to form the wear surface of a floor or wall covering. Alternatively, the locations of the unfoamed and foamed portions may be reversed, with the foamed portion surrounding part, or all, of the unfoamed portion, or the unfoamed portion may comprise both the core and part of the exterior.
Patent GB-1302422-A (GB)
IPC: F02M1/10
Filed: 1970-09-02
Abstract: 1302422 Spray carburetters NISSAN MOTOR CO Ltd 2 Sept 1970 [9 Sept 1969] 41916/70 Heading F1B In a carburetter 12 having a main mixture circuit 18, 32, 34 and an idling and slow-running mixture circuit 20, 24, 26, 36 communicating with the float chamber 22 through a fuel jet 30, a valve element 38a with a passage 38c therein obstructs the jet unless a temperature which is a function of the engine temperature is below a certain value. The valve element 38a may be moved against the bias of a spring 44c when the temperature sensed by a detector at the carburetter, in the intake air cleaner, or in the engine cooling liquid opens a switch 42 in the circuit of a solenoid 44a. In a second embodiment, Fig.2 (not shown), the valve element (38<SP>1</SP>a) is spring-biased against a series of curved bimetal strips (56c) which decrease in curvature with rise in temperature to permit the spring (54) to move the valve element to obstruct the jet 30.
Patent GB-1479328-A (GB)
Title: Light-sensitive photographic material containing a supersensitized silver halide emulsion layer
IPC: G03C1/29
Filed: 1974-09-27
Abstract: 1479328 Thiazole thioureas AGFAGEVAERT AG 27 Sept 1974 [28 Sept 1973] 42032/74 Heading C2C [Also in Division G2] The compound of the formula is made by heating 2-amino-3 : 4-dimethyl-5- carboethoxy-thiazolium p-toluenesulphonate with 4-chlorophenyl-isothiocyanate in pyridine. Many other thiourea derivatives may be made by a similar process.
Patent GB-871901-A (GB)
Title: Piston and rings for use therewith
IPC: F16J9/22
Filed: 1958-12-30
Abstract: 871,901. Pistons. COSSOR, S. N. J. Dec. 30, 1958 [Jan. 24, 1958; March 21, 1958; June 26, 1958], No. 42038/58. Class 122 (1). A piston 10, Fig. 3, comprises a head portion 12 and a skirt portion 11, at least two ring grooves in the head, passages 21, 22 connecting the uppermost groove 13 with the top of the head and holes 25, 26 connecting the remaining groove or grooves 17, 18 with the interior of the piston. The groove 13 accommodates three compression rings 14, 15, 16 which, during operation, are forced into sealing contact with the cylinder wall by gas pressure entering the passages 21, 22, which are circumferentially spaced around the piston, and acting upon the inner faces of the rings. The grooves 17, 18 are fitted with oil-control rings 19, 20 which are prevented from rotation by a spring plate 27 having end lugs 28, 31 passing through slots 29, 32 in the piston and engaging with recesses 30, 33 in the rings; the spring plate may be corrugated to increase its flexibility. In order to facilitate the return of the oil to the sump, the lower edges of the grooves 17, 18 are of less diameter than the piston and lead into inclined grooves 23, 24 which also connect with circumferentially-spaced holes 25, 26. In the modification, shown in Fig. 6, the compression ring 45 is mounted in a groove 43 between rings 44, 46 and is split into a number of segments which are connected by a retaining bard 47 engaging with slots formed in the inner surface of the segments; the ring 45 may be in the form of a continuous ring and, if desired, wide enough to fit completely the groove, the rings 44, 46 then being dispensed with. An oil-control ring 49 is mounted in a groove 48 and is split into a number of segments each urged into sealing contact with the cylinder by springs 53; an oil-groove 54 connected with the interior of the piston is formed below the groove 48. In a further modification shown in Fig. 10, the oil-control ring is formed from a number of plain rings 69 mounted above a corrugated ring 70; a further plain ring 71 may be arranged below the ring 70. Two expansion-controlling slots 39, Fig. 3, are formed diametrically opposite each other in the skirt 11 so as to terminate near the lower edge of the skirt or, if desired, only one such slot may be provided.
Patent GB-881670-A (GB)
Title: Improvements in and relating to electrical assemblies
IPC: B60Q3/04
Filed: 1959-12-10
Abstract: 881,670. Printed circuits. UNITED-CARR FASTENER CORPORATION. Dec. 10, 1959 [Dec.11, 1958], No. 42093/59. Class 37. An instrument housing for mounting components behind the dashboard of a vehicle comprises a base having a recess for receiving an instrument and a series of apertures for receiving lamp sockets, each aperture being surrounded by an integral tubular shield projecting from the opposite side of the base to the recess and electrical connection between the lamp sockets and an external electrical supply being provided by a printed circuit on the base. A sheet of copper 12, Fig. 11, coated with a protective layer of solder 20 on one surface and adhesive 22 on the other, and having an oblongshaped area removed so as to allow a recessed area 16, Figs. 2, 6, to extend through the sheet, is placed on top of the base 18 in a press, Figs. 8 and 9 (not shown), the base being provided with reinforcing ribs 15, Fig. 2. Pressure is applied to the heated die 30 and the sheet is firmly adhered to the base, at the same time outlining the printed circuit in the manner shown in Fig. 11. A secondary operation is performed in which the socket holes 36 are punched out together with the connector openings 38 and instrument mounting apertures 40. Finally, the unstamped portions of the conductive sheet of copper are removed.
Patent GB-1478471-A (GB)
Title: Metal 8-hydroxyquinolate complexes as stabilizers for poly- phosphazenes- to inhibit thermal degradation at elevated temperatures
IPC: C08L85/02
Filed: 1974-09-27
Abstract: 1478471 Stabilizing polyphosphazenes HORIZONS RESEARCH Inc 27 Sept 1974 [28 Sept 1973] 42171/74 Heading C3R Polyphosphazenes are stabilized against thermal degradation by incorporating in them metal 8-hydroxyquinolates. In examples polyphosphazenes are stabilized with zinc, magnesium, aluminium, chromium and potassium 8- hydroxyquinolates.
Patent GB-1164714-A (GB)
Title: Accumulation Conveyor
IPC: B65G47/26
Filed: 1967-09-15
Abstract: 1,164,714. Roller conveyers. C. F. BUTZ ENGINEERING. 15 Sept., 1967 [28 Dec., 1966], No. 42256/67. Heading B8A. A roller conveyer has means whereby, when an article is stopped thereon, articles to the rear thereof will sequentially stop automatically and accumulate without pressure or bunching between the articles. As shown in Fig. 13, if an article 19b(X) is stopped, roller assemblies 20(A), 20(B), 20(C) are depressed and the drive from an endless belt 14, via power rollers 42, to rollers 26 of roller assemblies 20(F), 20(G), 20(H) is disengaged, by movement to the right, of the rollers 42. This movement is produced by rods 36 which connect the shafts of the power rollers 42 with side plates 30d of the assemblies 20(A), 20(B), 20(C). These assemblies are pivoted about shafts of their rollers 26 by the weight of the article 19b(X). Article 19b(X) thus comes to rest, the roller assemblies 20(F), 20(G) and 20(H) on which it is supported are depressed and articles to its rear are halted in similar manner. The unloaded attitude of the roller assemblies 20, with certain exceptions, is as shown by assemblies 20(D, E, F) and is dependent upon counterweights 30. A group of three roller assemblies (20) positioned at the receiving end of the conveyer, Fig. 4 (not shown), are not pivotally mounted since no control of other assemblies by the group is involved. For stopping an article 19b at the discharge end of the conveyer, Fig. 10, a gate 54 may be raised by a foot-operated system, Fig. 2 (not shown). Alternatively the system may be solenoid actuated Fig. 15 (not shown). When the gate 54 is lifted, power rollers 42 whose shafts 40 are linked by rods 42 are moved to the right in Fig. 10 and drive to the roller assemblies supporting the article 19b is disengaged. Roller details.-Forward rollers 24 and rear rollers 26 of the roller assemblies 20 are rotatable on shafts which have hexagonal ends for engagement with complementary openings in plates 22b, Fig. 10. Idler rollers 28 bear against rollers 24, 26 and have tyres (28c), Fig. 5 (not shown). Springs (28e) on mounting bolts (28a) ensure that the idler rollers are self-centring between the rollers 24, 26. The power rollers 42 also have tyres.