baber/WOPTO huggingface dataset:
Patent GB-1195846-A (GB)
Title: Circuit Means for Controlling the Operation of a Turbo Supercharger
Inventor: WALSH PETER ALFRED
IPC: G05D16/20
Filed: 1966-11-09
Abstract: 1,195,846. Transistor amplifier and pulse Circuits. ROTAX Ltd. 29 Jan., 1968 [9 Nov., 1966], No. 50180/66. Heading H3T. [Also in Division G1] A transistor amplifier consists of a push-pull Darlington pair 32, 33 whose outputs are applied to the emitter-base circuit of transistor 53 and push-pull stage 157. A unijunction transistor 170 operates as a fixed-frequency oscillator. Each pulse switches off the complementary bi-stable pair 164, 168 and allows capacitor 163 to charge, at a rate determined by transistor 162, until transistors 164, 168 again conduct, causing transistor 169 to conduct, feeding a load 16 in its collector circuit until the next pulse from unijunction transistor 170.
Patent GB-1145329-A (GB)
Title: Pressing head for impressing splines on shafts
Inventor: ZUZANOV GEORGY IVANOVICH
IPC: B21H7/18
Filed: 1966-11-09
Abstract: 1,145,329. Rolling splines. EKSPERIMENTALNY NAUCHNO-ISSLEDOVATELSKY INSTITUT METALLOREZHUSCHIKH STANKOV. 9 Nov., 1966, No. 50188/66. Heading B3M. A knurling head for forming splines on shafts includes a number of radially disposed working rolls 3 mounted in slides 2 and backed by rolls 5. Each roll 5 is eccentrically mounted within its slide such that rotation of a spindle 6 varies its spacing from the corresponding roll 3. Thus the proportion of the rolling load transmitted from the roll 3 to the roll 5, and to the supporting shaft for the roll 3, can be controlled in order to increase the life of the rolls 3. The slides are each radially adjustable by means of wedges 4.
Patent GB-1530599-A (GB)
Title: Internal combustion engines
IPC: F02M31/087
Filed: 1975-12-08
Abstract: 1530599 I.C.E. exhaust gases HONDA GIKEN KOGYO KK 8 Dec 1975 [18 Dec 1974] 50267/75 Heading F4B  A multicylinder I.C.E. with exhaust ports 9, 10, 11 has an exhaust assembly 15 comprising an upstream chamber 16 with baffle 19 and a downstream chamber 18 that surrounds the chamber 16. A partition wall 20 divides chamber 16 into compartments 16a and 16b and gases entering these compartments pass through openings 22 and 23 into the chamber 18 and finally escape from the exhaust assembly through an outlet 28. The exhaust system is arranged in relation to the cylinder firing order so that cylinders exhaust alternately into compartments 16a and 16b, thus preventing interference between exhaust gases from cylinders that may overlap in exhaust timing. The downstream chamber 18 may have openings 24 to expose a portion of the intake manifold 27 to the hot exhaust gases.
Patent GB-979882-A (GB)
Title: Retractable ball-point pen
IPC: B43K25/02
Filed: 1963-12-20
Abstract: 979,882. Retractable ball-point pens. TERMOPLASTIC S.r.1. Dec. 20, 1963 [Dec. 24, 1962; July 19, 1963], No. 50357/63. Heading B6P. In a retractable ball-point pen the plunger 5 is small enough to be moved radially as well as longitudinally within the barrel 1. A leaf-spring 7 biases the plunger 5 against one side of the barrel where a tooth member 6 can engage within an aperture 3 in the barrel 1 to hold the pen in the projected position, against the bias of a synthetic plastic spring 8 which may be provided integrally with the plunger 5. A second aperture 2, Fig. 1, may be provided in the pen barrel to accommodate the tooth 6 and retain the plunger 5 in the retracted position. A third aperture 4 may also be provided to accommodate a lip 7a of the spring 7 in the retracted position. It is, however, necessary to have at least one of the apertures 2 or 4 to prevent the plunger 5 escaping from the rear end of the barrel 1. In further embodiments, one of which is shown in Fig. 6, a jacket clip 10 is attached to the plunger 5. In the embodiment shown, Fig. 6, provision is made, namely the knurled surface 12, to enable the plunger 5 to be projected and retracted when a return spring 8 is not provided.
Patent GB-1430080-A (GB)
Title: Optical projectors
IPC: G03B23/06
Filed: 1972-11-03
Abstract: 1430080 Optical projectors GNOME PHOTOGRAPHIC PRODUCTS Ltd 14 Jan 1974 [3 Nov 1972] 50670/72 Heading G2J A slide projector comprises a magazine guide in the form of an open-topped, open-ended channel for receiving both linear and rotary magazines, and includes a support or supports which project up from the base of the channel to engage and support the rotary magazine and which are removable or movable to an inoperative position to allow insertion of the linear magazine. The support elements 25, 26 each have an arcuate surface 27 which engages the circumference of the magazine and a tongue 32 which is a press fit in a slot in the base of the channel. In an alternative embodiment the elements are pivotally mounted on a common hinge pin extending parallel to the channel, or on independant pins extending transverse of the channel so that they may be moved into recesses in the channel base. Alternatively the elements may carry two or more tangs which engage in corresponding slots in the channel base. The base and wall 12 of the channel may be inclined, see Fig. 1 and the elements tapered to engage the magazine.
Patent GB-1464932-A (GB)
Title: Controlling oceanic trawls
IPC: B66D1/50
Filed: 1974-11-22
Abstract: 1464932 Controlling winches HYDRAULIK BRATTVAAG AS 22 Nov 1974 50723/74 Addition to 1375682 Heading B8B [Also in Division G3] The trawl hydraulic system of Specification 1,375,682 is modified in that the control valve 40 is automatically regulatable to adjust simultaneously and with equal force, the tension in the trawl wires 11<SP>1</SP>, 11<SP>11</SP> so as to produce a controlled regulation of the height of the position of the trawl in the sea independently of and in addition to, the automatic application by the two winches of equal tensile forces in, and automatic parallel control of the trawl wires 11<SP>1</SP>, 11<SP>11</SP>. The valve 40, controlling the reeling in and paying out of the trawl wires on the winch drums- 10A, 10B is itself controlled from a signal converter which generates either a wind-in and hence trawl lifting signal or a payout and hence trawl lowering signal depending on the comparison of signals fed to the converter. A first echo sounder oscillator 20<SP>1</SP> on the trawl vessel 10<SP>1</SP> registers the level of a shoal of fish 22<SP>1</SP> relative to the sea bed 23<SP>1</SP> or surface 241 and feeds an appropriate signal to the converter, while a second echo sounder osci ffilaltor 261 secured to the trawl 17<SP>1</SP> registers the position of the trawl 17<SP>1</SP> with respect to the sea bed and surface and feeds its appropriate signal to the converter. The two signals are compared in the converter and if they coincide, the winch drums are not actuated, but any difference, representing a difference in level between the trawl 17<SP>1</SP> and the fish shoal 22<SP>1</SP>, generates a signal causing a raising or lowering of the trawl until the signals coincide. In further embodiments the reference signal with which the signal from the trawl is compared, may be either manually set, or may be a set distance from the sea bed or surface.
Patent GB-1476439-A (GB)
Title: Nickel catalyst
IPC: B01J23/755
Filed: 1974-11-22
Abstract: 1476439 Nickel-on-silica catalyst STAMICARBON BV 22 Nov 1974 [28 Nov 1973] 50732/74 Heading B1E A catalyst comprising nickel supported on silica is prepared by forming an aqueous suspension of particulate silica containing a dissolved nickel salt and urea, agitating and heating the product to above 50C to deposit an insoluble nickel compound on the silica, separating this from the liquid and reducing the nickel compound to nickel wherein the amount of urea used is according to the equation U = f #Ni where U = urea concentration in gm/litre, Ni is the nickel ion concentration in gm/litre water and f is a value between 75/pH and 175/pH where the pH is that of the aqueous silica suspension. Reference has been directed by the comptroller to Specification 1220105.
Patent GB-1418524-A (GB)
Title: Multifilament surgical suture
IPC: H01L29/47
Filed: 1973-11-02
Abstract: 1418524 Coated surgical sutures ETHICON INC 2 Nov 1973 [3 Nov 1972] 50990/73 Heading B2E A multifilament surgical suture has a coating of an aliphatic polyester of molecular weight in the range 1000 to 15000 having at least two carbon atoms between the ester linkages of the polymer chain. The suture may be of braided, twisted or covered multifilament structure. The polyesters may be derived from the polymerisation of lactones or by esterifying low molecular weight glycols with a dibasic acid. Preferred polyesters have the formula where n is an integer larger than 1 and smaller than 13, m is an integer larger than 1 and smaller than 9 and x is the degree of polymerisation. Numerous suitable acids and glycols are specified. The suture may be of polyethylene terephthalate, silk, cotton or collagen.
Patent GB-1358267-A (GB)
Title: Bleaching process for aliphatic carboxylic esters
IPC: C07C67/48
Filed: 1971-10-19
Abstract: 1358267 Carboxylic acid esters IMPERIAL CHEMICAL INDUSTRIES Ltd 19 Oct 1971 [27 Oct 1970] 51009/70 Heading C2C Aliphatic carboxylic esters are decolorized by exposing to light while in contact with from 0.01 to 1% of a compound where X is hydrogen or a substituent atom or group which is not strongly electron donating and Y is an alkyl group or a substituted aryl group as sensitizer. Esters may be of formula R 1 COOR 2 , R and R 2  are straight chain or branched alkyl groups (6-24C atoms), e.g. tridecyl, tetradecyl, hexadecyl, and heptadecyl stearates or mixtures thereof. Referred sensitizers are acetophenone, benzophenone, 3- phenyl-sulphonyl-benzophenone, and daylight or artificial, e.g. xenon, light may be used.
Patent GB-1530148-A (GB)
Title: Drill string shock absorber
IPC: E21B17/07
Filed: 1975-12-15
Abstract: 1530148 Boring earth &c SCHLUMBERGER TECHNOLOGY CORP 15 Dec 1975 [23 Dec 1974] 51225/75 Heading E1F A drill string shock absorber includes a telescopically disposed and slidably splined mandrel 21 and housing 22 for connection to the drill bit and drill string respectively, a helical coil spring 50 acting between the mandrel 21 and housing 22 and a hollow flow tube 36 for drilling mud sealed to the mandrel 21 and housing 22, the flow tube 36 defining inner wall surfaces of a chamber that encloses the coil spring 50 and contains a lubricating oil, the flow tube 36 being arranged to transmit the pressure of the drilling mud to the oil. As described the mandrel 21 and housing 22 are provided with splines 31, 30 respectively and are sealed to each other by packing 32. The flow tube 36 has a pistonlike head 38 and is sealed to housing 22 by packing 39 and to mandrel 21 by packing 41, the tube 36 being slidable in the mandrel 21 and housing 22 so that the pressure of the drilling mud on the piston 38 is transmitted to the oil in the chamber containing the coil spring 50. In use oil flowing through the restricted space between the splines 30, 31 provides a dashpot effect to act as a damper to the system.
Patent GB-1146419-A (GB)
Title: Coating composition
Inventor: DOUWES HENRICUS SIMEON ANTONIU
IPC: C09D127/06
Filed: 1967-11-13
Abstract: 1,146,419. Vinyl chloride-vinyl pivalate copolymer compositions. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 13 Nov., 1967 [15 Nov., 1966], No. 51521/67. Heading C3P. [Also in Division B2] A coating composition comprises a copolymer of vinyl chloride and vinyl α,α-dimethylpropionate (also known as vinyl pivalate) in a weight ratio of 4À5 : 1 to 1À5 1 by weight dissolved in a volatile organic solvent. The specified solvent is 4-methyl-pentanone-2.
Patent GB-1073419-A (GB)
Title: Improvements in or relating to marine and inland water fenders
Inventor: HEDGES CHARLES DEREK DE FRANCA
IPC: E02B3/26
Filed: 1964-12-18
Abstract: 1,073,419. Fenders. R. M. HEDGES. Dec. 10, 1965 [Dec. 18, 1964], No. 51631/64. Heading B7S. A fender comprises a central core 12 (Fig. 5 of drawings accompanying the Provisional Specification, not shown) and a belt 13 of elastomeric material encircling it and freely movable around it, the core being so mounted in or on a quay wall 23 or other immovable object that the belt is movable around it in a substantially horizontal plane and has a portion 24 projecting from the wall, the shapes of the core and belt being such that the said portion offers a substantially flat surface for engagement of a vessel 26. The core may comprise rollers rotatable in a horizontal plane or may comprise a rigid member having a smooth surface over which the inner surface of the belt slides and said surfaces may be lubricated from a reservoir formed in the core. The core may be hollow for inflation pneumatically.
Patent GB-1219676-A (GB)
Title: Improvements in and relating to a tool for applying hydraulic fluid
Inventor: MONTESI ROBERT P
IPC: B21D39/04
Filed: 1968-10-31
Abstract: 1,219,676. Stamping. DRESSER INDUSTRIES Inc. 31 Oct., 1968 [3 Nov., 1967], No. 51640/68. Heading B3Q. A tool for deforming a wall 11 by fluid applied under pressure against the wall comprises a tubular body 26 having an inlet 28 and an outlet 39 for the fluid, and means for mounting the tool on a support 14. As shown, the tool delivers water, grease, kerosene, air &c. to a space 15 between a mounting ring 14 and the wall 11 which is to be deformed against a gasket 12 on a pipe 13. A cap 17 is removed from an oblong hole 16 in the ring 14 by a lever 34 on the tool and the hole used for mounting the tool, by means of an oblong foot 40 which is turned after insertion through the hole. A screw-threaded sleeve 44 is turned to clamp the ring 14 between the foot 40 and an end section 45 of the tool. Within the tool is a spring-pressed valve 59 having a stem 58 contacting the wall 11. When the wall has been deformed by the desired amount, the valve closes against its seating 65 in an adjustable core 62 to interrupt the supply of fluid to space 15.
Patent GB-1093979-A (GB)
Title: Thermoplastic composition
Inventor: CHAMEROY JEAN GUSTAVE
IPC: C08L23/12
Filed: 1966-11-18
Abstract: Compositions consist of 55 to 70% of polypropylene or polyethylene, 25 to 15% polyoxymethylene, and 20 to 15% of alumnium oxide.  The compositions have a response equivalent to that of organic tissues with respect to g , b  and X-radiations and fast neutrons, and may accordingly be used in radiation detectors.
Patent GB-1096149-A (GB)
Title: A combined timing and injection volume governor for the injection pump of an internal combustion engine
IPC: F02D1/04
Filed: 1964-12-22
Abstract: 1,096,149. Speed governors. ADOLPH SAURER Ltd. Dec.22, 1964 [Feb. 5, 1964], No. 51991 /64. Heading G3B. [Also in Divisions F1 and F2] In a timing governor for injection pumps of I.C. engines, a set of centrifugal weights conjointly control the injection timing and volume. The weights 8 are pivotally mounted on bolts 7 connecting plates 5, 6 rotated by a shaft 4. The pump shaft carries a transverse plate 12 connected to an axial support plate 30 for the weights 8. The pump shaft is driven through a connection between complementary surfaces 9 on the weights 8 and on rotary elements 10 attached to the plate 12, thereby providing automatic adjustment of the injection timing in accordance with speed variation. The injection volume is controlled by three camsurfaces between the edges 13, 14 and 15 on the weights 8. These cam-surfaces, on movement of the weights 8, displace balls 16 to cause a sleeve 17 to rotate a lever 18 about a pivot 20 and thereby move a rod 19 controlling the injection volume. The engine load setting is controlled by a lever 21 carrying the pivot 20. The range over which the injection volume is controlled may be regulated by adjustment of stops 25, 27.
Patent GB-1210496-A (GB)
Title: Process for polymerising lactones
Inventor: JENKINS VICTOR FREDERICK
IPC: C08G18/42
Filed: 1966-11-24
Abstract: 1,210,496. Process for polymerizing lactones; polyurethanes. LAPORTE CHEMICALS Ltd. 23 Feb., 1968 [24 Nov., 1966], No. 52630/66. Heading C3R. Polyesters are made by polymerizing a certain lactone in the presence of a chain initiator and a cation exchange resin in the H form. The lactone may be at least one of either (a) where R is H or alkyl group provided that the total number of C atoms in all the alkyl groups is not greater than 6 and n is 5-12. (b) where R<SP>1</SP> is any one of Me, Et, n-pr, iso-pr and H, Cl, Br; provided that the total number of C atoms in the (CR<SP>1</SP> 2 ) n-1  group #12, that there are #2 halogens in this group and n is 5-12; or (c) either one of (a) or (b) in which n is 3. Specified chain initiators are alcohols, mono- and di-alkylamines and amino alcohols. Polymerization may be effected in the presence of an inert solvent. Preferred lactones are #- caprolactone or a methyl #-caprolactone. Sulphonated cross-linked polystyrene exchange resin may be the catalyst. Polyurethanes may be made by reacting the polyester with polyisocyanate. In an example poly-(caprolactone) was reacted with toluylenediisocyanate to form a prepolymer which was reacted with 4,4<SP>1</SP>- diamino - 3,3<SP>1</SP> - dichlorodiphenylmethane to give an elastomer. Reference has been directed by the Comptroller to Specification 859,642.
Patent GB-1177115-A (GB)
Title: Stressed Crane Structures
IPC: B66C9/14
Filed: 1967-11-20
Abstract: 1,177,115. Overhead travelling cranes; tower cranes. POLITECHNIKA SLASKA. 20 Nov., 1967 [2 Dec., 1966], No. 52755/67. Heading B8B. The guides, Fig. 1, of an overhead crane which support a crab 4, are stressed in a manner which opposes the bending moment produced by the crab when a load is raised by cables 5, 16, 17 and their associated pulleys. Each of the supporting girders has sets of pulley blocks 13, 14, the upper pulleys of which are connected by cables 16, 17. The cable 5 passes from one of the girders, round the lower pulleys of blocks 13, 14 on that girder and across to the lower pulleys of blocks 13, 14 on the other girder where it is fixed. A load rope 1 and block 2 is suspended from the rope 5 between pulleys 8, 9 and opposite ends of the load rope are wound on a hoist winch drum 3. Thus, when a load is raised, the weight of the load tensions the ropes 5, 16, 17 and stresses the girders. In a second embodiment, Fig. 5, the jib 27 of a tower crane is stressed in a similar manner by a main rope 32, reeled on a drum 3, and subsidiary ropes 16, 17, 25, 26 which interconnect the pulleys 23, 24.
Patent GB-529751-A (GB)
Abstract: 529,751. Gyroscopes. ASKANIA-WERKE AKT.-GES. June 7, 1939, No. 16693. Convention date, June 7, 1938. Drawings to Specification. [Class 97 (iii)] A gyro-rotor, particularly of an aircraft turn indicator, adapted to be driven by air jet and by electric motor, has impact blades on its circumference to receive impulses from a jet operated by pressure or vacuum, and the rotor of a direct or alternating current electric motor mounted on its spindle. Means may be provided for putting in one of the driving means automatically when the other fails, or both may be used together.
Patent GB-1529210-A (GB)
Title: Safety supply circuit for washing machine drum driving motors
IPC: D06F37/30
Filed: 1975-12-29
Abstract: 1529210 Control of DC motors ETABS CARPANO & PONS 29 Dec 1975 [30 Dec 1974] 53041/75 Heading H2J A safety supply circuit for a D.C. motor connected to a power supply through a regulator and driving the drum of a washing machine having at least two speeds, i.e. a slow washing speed at which the drum is driven in alternate directions and a fast spin-drying speed, determined by a programmer, includes protective means for detecting a cut in the power supply, a locking device responsive to the protective means to prevent operation of the regulator when the supply is restored and means actuated by the programmer for overcoming the locking function only when the programmer is set to operate the drum at the slow washing speed. In Fig. 3, motor M is supplied through a thyristordiode bridge 46-50 and reversing switches 51- 54 from a transformer 3, which has further windings 1, 2 forming part of stabilized supplies P1, P2 for the programmer C, pulse generator R1 and circuits R2, S. During normal operation a thyristor 41 in circuit S is non-conductive and a voltage indicative of a desired motor speed is obtained from supply P2 via switch G and resistor 8 of the programmer C together with further resistors 9, 10, 11 therein selectable by switches 12, 13, 14. The desired speed signal is applied to transistor 33 in circuit R2, which transistor also received an actual speed (back EMF) signal from resistor 34 and a motor current signal from resistor 38, whereby members R2, R1, 46-50 regulate the supply to the motor. A supply cut is detected by sensing the instant when the supply is re-established, which occurrence makes Zener diode 58 conductive and produces a current pulse through a capacitor 42 to fire the thyristor 41. Hence the voltage to the resistors 8-11 falls to zero and members R1, R2 do not resume operation with restoration of the supply. To overcome the locking action of the thyristor 41, switch G is opened to turn off the thyristor and reclosed to start operation of members R1, R2, this actuation of switch G being caused by setting the programmer C to the slow washing speed position. This procedure is also necessary when the thyristor 41 is fired by motor overload current sensed by resistor 38.
Patent GB-1024792-A (GB)
Title: Improvements in or relating to coating apparatus
IPC: B05C5/02
Filed: 1962-09-23
Abstract: The apparatus comprises the features disclosed in Specification 1,024,791 except that it does not include means for varying the composition of the coating material disposed along the bore of the applicator body.
Patent GB-1515070-A (GB)
Title: Escalator
IPC: B66B23/14
Filed: 1976-12-22
Abstract: 1515070 Escalators HITACHI LTD 22 Dec 1976 [29 Dec 1975] 53607/76 Heading B8A An escalator comprises steps 7 linked in an endless belt (Fig. 1, not shown) front wheels and rear wheels for each of the steps supporting the step through a front shaft and a rear shaft 14 respectively; guide rails 11 for guiding the rolling movement of the front wheels and the rear wheels 9 respectively; projections 14a extending axially of the rear shaft for each of the steps in a rear wheel portion of the step; and upthrust rails 19a adapted to be brought into engagement with the projections when any one of the steps tends to move in inadvertent pivotal upward movement to avoid further upward pivotal movement of the step. The projection may be removably mounted on the shaft 14 (Fig. 4, not shown). It may carry a roller (Fig. 5, not shown). It may be part of a bearing cover for the wheel 9 (Fig. 7), not shown. It may be a tubular extension of the wheel (Fig. 9, not shown).
Patent GB-541025-A (GB)
Abstract: 541,025. Lubricants. RESINOUS PRODUCTS & CHEMICAL CO. May 13, 1940, No. 8610. Convention date. July 11, 1939. [Class 91] [Also in Group IV] Polyalkylene ether thioethers of the general formula where A is an alkylene group of two to four carbon atoms and n is 1 to 5, are made by condensing, in the presence of an acid-binding agent, thioammeline with a dihalogenopolyalkylene ether of the formula. X-A-(O-A)n-X where X is halogen. In examples, an aqueous solution of sodium salt of thioammeline is condensed with (1) #, #<SP>1</SP>-dichlorodiethyl ether, and (2) #-chloroethoxy-#<SP>1</SP>-chlorodiethyl ether. Other dihalogeno-polyalkylene ethers specified are those of the formulae Cl.C 2 H 4 -(O-C 2 H 4 ) 2 Cl, Cl.C 2 H 4 -(O.C 2 H 4 ) 3 -Cl., and the dichlorpropyl and dichlorisopropyl ethers. The corresponding bromides may also be used, and the amino groups of the thioammeline may be substituted, e.g. by alkyl groups. The products may be used as additives for lubricating oils.