baber/WOPTO huggingface dataset:
Patent GB-1108762-A (GB)
Title: Improvements relating to high voltage electric cables
Inventor: JOHNSON OLIVER SANDERS
IPC: H01B9/02
Filed: 1964-08-11
Abstract: 1,108,762. Extruding cable sheathings. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 28 July, 1965 [11 Aug., 1964], No. 32685/64. Heading B5A. [Also in Division H1] Using an extrusion nozzle as described in Specification 967,567, an electrical conductor is coated with multiple layers of polyolefin by simultaneous extrusion of an inner semiconductive layer, an intermediate insulating one and an outer semi-conductive one. Extrusion and subsequent controlled cooling conditions ensure that the layers become intimately bonded together. They are then subjected to a crosslinking process, suitably by irradiation with electrons, then a gas-permeable tape layer is applied to form a screen. This may be done by winding a copper tape helically over a conductive or semi-conductive textile bedding tape. One or more such cores may be enclosed in an aluminium sheath with space inside for a pressurized inert insulating gas. For example three cores may be bound together with tape and sheathed in an aluminium tube webbed about the core assembly from aluminium strip by highfrequency electric welding. The aluminium sheath may be externally protected against corrosion by an outer layer of organic material, such as extruded polyvinylchloride.
Patent GB-163960-A (GB)
Title: An improved attachment for the bottoms of saucepans, kettles and like cooking utensils
IPC: A47J27/022
Filed: 1920-11-19
Abstract: 163,960. Draper, J. Nov. 19, 1920. Foot-rings. - For preventing wear of the bottoms of saucepans, kettles, &c., a metal band 1, Fig. 2, 'having a scalloped and beaded lower edge 5 is applied to the pan, the band being made adjustable for different sizes of pans &c. by having one end formed into a tongue adapted to engage in one of a series of slots in the other end of the 'band. The centre of the bottom may be protected by a disc 7, Fig. 5, supported by radial arms, which may be adjustable, held between the bottom of the pan &c., and the upper edge of the bead 5. The arms 9, when adjustable, slide in turned-over clips on the disc 7.
Patent GB-1099789-A (GB)
Title: A novel imidazole derivative and a process for the preparation thereof
IPC: C07D233/92
Filed: 1966-05-13
Abstract: 2 - Iodo - 4 (or 5) - nitroimidazole is prepared by nitrating 2,4 (or 5)-diiodo-imidazole.
Patent GB-447543-A (GB)
Title: Improvements in or relating to cinematographic cameras and projectors
IPC: G03D15/00
Filed: 1934-11-16
Abstract: 447,543. Kinematograph apparatus and films. COLLINGS, C. E. HILLERY-, 26, Rural Way, Mitcham, Surrey. Nov. 16, 1934, No. 33038. [Classes 97 (i) and 98 (ii)] In a camera or projector the film is fed horizontally past an aperture of half the usual size to expose or show the upper or lower half, and is subsequently re-threaded in an inverted position and fed in the same direction to expose or show the other half. The film may have marginal or central perforations, and sound tracks may be provided in each margin. The exposed camera film may be developed as a positive, and may be projected with its base towards the lens, when reversal of the sequence of movements in the projected image is desired. Reference has been directed by the Comptroller to Specification 21467 /09, [Class 98 (ii)]
Patent GB-982674-A (GB)
Title: Improvements in or relating to electrical circuits
Inventor: WOLFENDALE CALEB FREDERICK
IPC: G05D3/14
Filed: 1960-09-27
Abstract: 982,674. Electric positional control systems. SERVOMATIC HYDRAULICS (GUILDFORD)Ltd. Sept. 27, 1961 [Sept. 27, 1960], No. 33144/60. Addition to 935,241. Heading G1N. [Also in Division G4] The position of a workpiece relative to a tool is measured by a capacitive transducer comprising a movable electrode 22 (Fig. 1) and a series of fixed electrodes 21 at successively increasing A. C. potentials. The pick-up potential on electrode 22 is compared with a reference potential, e.g. on slide 30, and the potential difference is used to energize a motor 33 to locate the movable electrode 22 and its associated movable machine part at a position determined by the reference potential at 30. The Specification includes a number of methods for producing the reference and the electrode potentials, with coarse and fine adjustment facilities, and means for modifying the potentials on the fixed electrodes to produce any desired relationship between displacement and potential of the movable electrode.
Patent GB-435722-A (GB)
Title: Apparatus for bending sheet or strip metal
IPC: B21D5/02
Filed: 1934-11-17
Abstract: 435,722. Making strip mouldings. ROSENGRENS KASSASKAPSFABRIKS AKTIEBOLAG, E. A., Gothenburg, SJOLANDER, C. G. L., Villa Dahlsborg, Gothenburg, Sweden. Nov. 17, 1934, No. 33163. [Class 83 (iv)] Angular bending; dies.-In a machine making mouldings &c. Figs. 8, 15, 22, 31, from metal strip, a stationary press head 13 cooperates with a toggle-actuated head 12. The strip 18 is fed intermittently by ratchet-driven feed rolls 19, Fig. 6, between dies 24, 25, 26 which progressively form the moulding. The three separate dies 24, 25, 26 are each of varying cross-section and gradually bend the strip as it passes through the die. In making a moulding, Fig. 22, the dies at positions B B<1>, D D<1>, F F<1> are as shown in Figs. 25, 27, 30 respectively. The dies 27, 41 are pivotally mounted to assist bending and to make the dies self-adjustable. Some of the die members are made prismatic to change the vertical pressure into a side thrust. The upper dies are adjustable by screw means and the lower dies are adjusted by a sliding wedge. In a die for turning the edge of the moulding, Fig. 31, a cylindrical die member in the upper die is pivoted to effect bending by a sliding pin engaging the lower die member.
Patent GB-1141622-A (GB)
Title: Improvements relating to photosoluble silver halide materials
IPC: C07D277/36
Filed: 1966-07-25
Abstract: 1,141,622. Photo-solubilizable silver halide materials. E. I. DU PONT DE NEMOURS & CO. July 25, 1966 [Aug. 9, 1965], No.33296/66. Heading G2C. Photo-solubilizable silver halide emulsion layers as described in Specification 1, 031, 902 are made spontaneously developable in photographic silver halide developing solutions by incorporating therein an amine borane e.g. picoline borane, trimethylamine borane, morpholine borane, tbutylamine borane, dimethyl - dodecylamineborane, and dimethyl octadecylamine borane. The preferred compounds for rendering the silver halide photo-solubilizable are 2-mercapto-4-hydrocarbon thiazoles. The exposed emulsion is developed by treatment with a silver halide solvent followed by a silver halide developing agent.
Patent GB-519509-A (GB)
Title: Improvements in pneumatic tyres
IPC: B60C5/20
Filed: 1938-11-16
Abstract: 519,509. Pneumatic tyres. WITZENMANN E. Nov. 18, 1938; No 33314. Convention date May 31, 1937. Additior to 514,904. [Class 144 (ii)] The tube c<1> and spongy rubber &c. filling d as in the parent Specification, are now vulcan ized together to produce an integral core for fitment in the cover a
Patent GB-371300-A (GB)
Title: Improvements in or relating to machines for the manufacture of metal stirrups for use in reinforced concrete construction, or for other purposes
IPC: B21D11/12
Filed: 1931-12-01
Abstract: 371,300. Making reinforcements for concrete. FASQUELLE, A. and MUNER, G., 70, Rue de l' Aqueduc, Paris. Dec. 1, 1931, No. 33329. Convention date, Dec. 1, 1930. [Classes 83 (ii) and 83 (iv).] Angular bending ; formers ; shearing and adjustments.-In a machine for making reinforcement for concrete, a rod 16 is cut to length, the ends A are bent by discs 20, and the rod is then bent at the centre about a former 27 to complete the reinforcement R, Fig. 4. The rod 16 is fed by rollers 72 against an end stop 64 and is severed to length by co-operation of the end of a tube 71 and an apertured power driven disc 63. The distance between the stop 64 and the cutter is adjusted by a handwheel 80. For bending the ends A the rod rests on discs 20 rotated by gearing from a power-driven shaft. Spigots 25 engage and bend the rod. The rod is freed from the discs by a cam which lifts the discs relatively to the spigots 25 and the shaft 20<1>. The central bend is made by pivoted arms 49 on a carriage 44 reciprocated from the power shaft. Rollers 55 engage rails 54. Reciprocation of the carriage 44 and rollers 57 bend the rod about a former 27. After bending the former is retracted by a cam.
Patent GB-1245390-A (GB)
Title: Improvements in or relating to centrifugal separators
Inventor: VALENTIN OVE ALLAN
IPC: B04B7/08
Filed: 1970-07-09
Abstract: 1,245,390. Centrifugal separators. ALFA LAVAL A.B. 9 July, 1970 [24 July, 1969], No. 33372/70. Heading B2P. In a centrifugate for separating liquids, e.g. of the type described in Specifications 1,111,557 and 1,173,489, the surfaces of separating discs adapted to come into contact with liquid to be separated are coated with a completely or partly fluorinated poly-alkene so as to reduce the build-up of deposits thereon. The coating may consist of P.T.F.E., polychlorotrifluoroethylene, polyvinylidenefluoride, polyvinylfluoride or poly-(tetrafluoro-ethylene,perfluoropropene). The centrifuge may be used for separating milk or yeast-containing wort.
Patent GB-342661-A (GB)
Title: Improvements in or relating to the preparation of metals for painting
IPC: C23G1/02
Filed: 1929-11-02
Abstract: Metal surfaces are cleaned in preparation for painting by applying a solution of sodium, potassium, ammonium or other dihydrogen salt of phosphoric acid, such solution not containing any appreciable amount of free acid, and removing the solution and the products of reaction as by wiping with a dry rag.  An oil solvent such as ethyl or butyl alcohols or a mixture thereof, acetone, methyl ethyl ketone &c. may be added to the solution.  In an example a suitable solution is made by mixing water, ethyl and butyl alcohols, phosphoric acid and ammonia water in such proportions as to form ammonium dihydrogen phosphate.
Patent GB-851022-A (GB)
Title: Improvements in or relating to coated plastics films
Inventor: READINGS PETER BERT
IPC: B29C67/00
Filed: 1957-10-25
Abstract: 851,022. Coated abraded plastics films. LAWES BROS. Ltd. Oct. 3, 1958 [Oct. 25, 1957], No. 33443/57. Class 140. A plastics film, e.g. of polyethylene terephthalate, has a surface rendered matt by abrasion using a mixture of abrasive particles and water projected centrifugally across the surface of the film according to Specification 851,021 and thereafter is coated with a layer of a film-forming material. The layer may be such that the original contours of the matt surface are substantially unchanged, and may contain casein, polystyrene, polybutyl methacrylate, polymethyl methacrylate, urea-formaldehyde, polyvinyl alcohol, polyvinyl acetate and chlorinated rubber.
Patent GB-634958-A (GB)
Title: A burglar-proof catch for windows, doors or the like
IPC: E05B63/18
Filed: 1947-12-19
Abstract: 634,958. Bolts ; door and window catches. CADDY, S. C. Dec. 19, 1947, No. 33545. [Class 44] A window or door catch comprises two elements mounted in a casing, one element being adapted for rotary and or longitudinal movement to engage an independent fitting and having means at one end for effecting the engagement and manipulating means at the other end, and a second spring-loaded element disposed at right angles to the first and having means at one end for locking the first element against movement and means for manipulation at the other. Disengaging movement of the first element is against the action of a spring over the whole of its travel, and the arrangement is such that manipulation by both hands is necessary to release the catch. In the form shown in Figs. 1 and 2, an element 7, having at one end a hook 8 adapted to engage an eyelet on the door or window frame, and a manipulating button at the other, slides and rotates in the casing 1, and is biased by a spring 13. Fast on element 7 is a square nut-like member 10, which is normally engaged by a lip 16 on an L-shaped plate 15 sliding in the casing and attached to the spring-urged locking element 14 which can be withdrawn by manipulating a button 17 to allow releasing movement of element 7. In a modified form shown in Fig. 6, the element 7 is of square section, and acts as a bolt. It carries a pin 28, which normally engages in one or other of two notches 34, 35 formed in one flange of an L-shaped plate 32 secured to the spring-pressed locking element 30. In the form shown in Fig. 11, a hook catch 42 is mounted on a sleeve or shaft 39 which can be rotated by means of a knob and is biased to engaging position by a spring 43. Rotation of the hook is normally prevented by contact of the squared end thereof with a flange 49 of the locking element 47, which is pulled down by means of knob 46 to permit release of the catch.
Patent GB-1315634-A (GB)
Title: Exhaust manifolds for internal combustion engines
IPC: F16L27/111
Filed: 1971-07-16
Abstract: 1315634 Expansion joints DAIMLER-BENZ AG 16 July 1971 [18 July 1970] 33562/71 Heading F2G [Also in Division F1] In an I.C. engine exhaust manifold (see Division F1) compensators between exhaust pipe sections comprise a flame tube 8 and a metal bellows 1 having cylindrical extensions 3 beyond conically-shaped end portions for attachment at its ends to exhaust pipe sections. In another embodiment the flame tube is clamped at one end to an exhaust pipe section, its other end being located in a recess in the other exhaust pipe section.
Patent GB-1267923-A (GB)
Title: Electrical switch assemblies
Inventor: LEWIS KEITH
IPC: H01H13/56
Filed: 1968-07-15
Abstract: 1,267,923. Locking switches. JOSEPH LUCAS (INDUSTRIES) Ltd. 27 June, 1969 [15 July, 1968], No. 33619/68. Heading H1N In a switch assembly having two operating members, operation of one operating member 12, 13 locks the other operating member against operation. As shown, members 12, 13 are rockers pivoted on support 11 and actuating through means unspecified movable contacts 16, 17 bridging fixed contacts 14, 15. When one operating member, e.g. rocker 13, is depressed, projection 13a bends resilient finger 18 into the path of the other operating member thereby preventing depression of that operating member.
Patent GB-986211-A (GB)
Title: Improvements in or relating to hydraulic fluids
Inventor: HITCHCOCK NORMAN ERNEST FREDER
Filed: 1962-09-04
Abstract: A composition suitable for use as an aviation hydraulic fluid comprises (a) a liquid mixture of isomeric brominated ethyl benzenes of formula <FORM:0986211/C4-C5/1> where z is 2 to 3, (b) a mineral oil or mixture of mineral oils having a flash point of at least 200 DEG  F. and a pour-point of less than - 75 DEG  F., and (c) 2-20 weight per cent of a polymeric thickening agent such that the composition has a viscosity of at least 6 cs. at 130 DEG  F. and not more than 600 cs. at -40 DEG  F., the amount of (a) being such as to provide 30-45 weight per cent bromine in the total composition. Additive (c) may be a polyisobutylene (e.g. of M.W. 1000-3000) or an alkyl polymethacrylate (e.g. of M.W. 2000-20,000).  Preferably one or more antioxidants are also present, e.g. phenyl a - or b -naphthylamine, 2,6-ditertiarybutyl-p-cresol, and methylene bis-(2,6-di-tertiarybutyl)phenol. Other optional additives include tricresyl phosphate, and benzotriazole.
Patent GB-1118120-A (GB)
Title: Improvements in relation to articulated vehicles
Inventor: BULLER PAUL OTTO
IPC: B62D53/02
Filed: 1966-07-28
Abstract: 1,118,120. Articulated vehicles; steering. ALLIS-CHALMERS MFG. CO. 28 July, 1966 [4 Aug., 1965], No. 33973/66. Heading B7H. An articulated vehicle comprises a rear section 12 articulated about vertical pivots 17, 18 to a forward section upon which implements may be mounted, e.g. a front end loader, lift mast, bulldozer, roller, crane or an earthworking attachment. Each section is mounted upon a pair of wheels, and the rear section comprises a power unit drivingly connected to its wheels and a pair of hydraulic rams 32, 33 which may be connected to brackets 36, 37 on the front section for steering. To facilitate separation of the sections, the rear section has a pair of auxiliary wheels mounted upon legs 26, 27, each of which comprises a yoke portion 162 for mounting the wheel and a solid cylinder 161 which may be secured by a bolt 164 in the inner of two concentric cylinders 163, 179. The outer cylinder 179 is secured by brackets 172, 173, 174 to a base-plate 171 which may be pivoted about a bolt 49 from a stowed position shown in broken lines, Fig. 3, to the operative position for converting the rear section to a four wheel vehicle during separation, shown in full lines, in which position it is retained by a stud 54. For steering purposes, the inner cylinder 163 may pivot within the outer cylinder 179 with the aid of a thrust bearing arrangement 167, 168 and is connected by a link to a tie rod 63 which connects the wheels of each leg and is connected by a bell crank 121 to the ram 32, the other ram, 33 being rendered inoperative with the aid of a bracket 106. To facilitate assembly or disassembly of the two vehicle sections, the two legs 26, 27 are put in the load supporting position with the pin 164 removed, the cylinder 161 then bearing upon a screw 181 which may be rotated for height adjustment. When the two sections of the vehicle are articulated together with the legs inoperative as shown in Fig. 1, drive may be transmitted through a shaft 25 to the wheels of the front section.
Patent GB-988705-A (GB)
Title: Steel for high temperature cementation
IPC: C22C38/08
Filed: 1961-09-22
Abstract: A nitride bearing steel for high temperature cementation consists of:- .C.0.05 -0.25%, .Si.0.15 -0.40%, .Mn.less than 1.00%, .precipitated AlN.0.04 -0.18%, .metallic Al (in solution).0.001-0.05%, .with or without. .one or more of Ni.0.1 -4.5%, .Cr.0.4 -2.5%, .Mo.0.10-1.0%, the balance being iron and incidental impurities such as Cu (e.g. 0.19%), P and S.  The AlN may be partly replaced by a nitride of Ti, Zr, Be and/or B, the total content of the latter elements being e.g. 0.1-0.2% Ti, 0.01-0.2% Zr, 0.01-0.2% Be and 0.002-0.2% B.  The steel may be subjected to cementation at above 950 DEG C. or even 1100 DEG C., followed by quenching from 930 DEG C. and tempering at 180 DEG C. Specification 988,704 is referred to.
Patent GB-1424497-A (GB)
Title: Polycylic lactones useful as odour-and taste-modifying agents
IPC: A23L27/20
Filed: 1974-08-01
Abstract: 1424497 Artificial flavourings FIRMENICH SA 1 Aug 1974 [1 Aug 1973] 34056/74 Heading A2B [Also in Divisions A5 and C2] Tricyclic lactones of the formula: wherein the dotted lines signify that a double bond may be present between atoms 3 and 4 or 4 and 5 or that no such double bond is present, are used as flavouring agents in foodstuffs e.g. sugared milk, ice-cream, cake, pudding and chocolate.
Patent GB-1441049-A (GB)
Title: Method of producing wheel rims
IPC: B21H1/10
Filed: 1974-08-01
Abstract: 1441049 Making wheel rims LEIFELD & CO 1 Aug 1974 [28 Aug 1973] 34079/74 Heading B3A A method of making a wheel rim having a slant shoulder with an erected wheel flange on one end of the rim and a recessed spring ring groove on the other end of the rim comprises spinning a sheet metal blank to form the spring ring groove, stretching or drawing the blank to the desired wall thickness, and erecting or raising an end of the rim to form the wheel flange. A recess is formed adjacent the groove as a support for the spring ring by a spinning operation during the stretching of the blank. The stretching of the blank can be performed in two roll passes with the slant shoulder being formed adjacent to the wheel flange in the course of the second roll pass and having an inclined surface of 5 degrees. Stretching of the rim base and formation of the slant shoulder may be performed in a single chucking step.
Patent GB-302348-A (GB)
Title: Photographic sensitized discs
IPC: G03D13/12
Filed: 1928-11-20
Abstract: 302.,348. McCowan, D. A. Dec. 15, 1927, [Convention date]. Looking-glasses and mirrors.-A sensitive element, for use for example in automatic cameras, comprises a sensitized sheet metal disc and a reflecting sheet metal disc placed back to back, the edge of one disc being curled inwardly to secure the discs together and to form a peripheral protective bead extending forwardly and rearwardly beyond the sensitive and reflective surfaces. As shown, the sensitized disc 1 is slightly convex, and its edges 2 are raised so that the disc constitutes its own developing dish. On the reverse side a mirror 5 of polished metal is secured by the inturned edge of the bead 3, which serves also to protect the mirror. In a modification, the surface 1 is formed as the mirror, and the surface 5 is sensitized. The Specification as open to inspection under Sect. 91 (3) (a) states also that the reflective disc may be of silvered glass. This subjectmatter does not appear in the Specification as accepted.
Patent GB-991685-A (GB)
Title: Circuit arrangement for altering the level of a video signal
IPC: H04N5/20
Filed: 1963-08-29
Abstract: 991,685. Amplifiers. FERNSEH G.m.b.H. Aug. 29, 1963 [Sept. 1, 1962], No. 34198/63. Heading H3T. A variable attenuator circuit comprises a resistor 8 by way of which the input signal is applied to the junction of two like non-linear resistors 11, 12 connected in series across a variable resistance element, such as variable resistor 17, the ends of the parallel combination of the non-linear resistors and variable resistance element being connected through equal resistors 13, 14 to the terminals of a direct-voltage source so that by variation of the variable resistance element, the potential difference applied across the resistors 11 and 12 is varied to vary the resistance presented by said resistors to the signal applied thereto through the resistor 8 and hence the attenuation of the output signal appearing at the junction point 9. Owing to the symmetrical form of the circuit, alteration of variable resistor 17 does not alter the direct-voltage level at junction point 9 so that the input and output transistors may be directly coupled. A common-emitter coupling for the transistors 3 and 18 is decoupled by capacitor 27 to prevent spurious oscillation. The equal series resistors 13, 14 are decoupled by resistors 15, 16 respectively. In a modification, Fig. 2 (not shown), the variable resistor 17 is replaced by the emitter-collector path of a transistor whose resistance is controlled by a voltage applied to its base electrode, taken either from a potentiometer connected across the directvoltage source or from some other controlling signal source.
Patent GB-996614-A (GB)
Title: Improvements in or relating to pneumatic transmitters
Inventor: HALLETT HENRY ALBERT
IPC: G01F23/42
Filed: 1960-10-06
Abstract: 996, 614. Fluid-pressure servomotor control systems. CHELTENHAM AUTO CONTROLS Ltd. Oct. 2,1961 [Oct, 6.1960], No. 34256/60. Heading G3P. A pneumatic force balance transmitter comprises a pivoted balancing lever 13 which receives an input force from a spring 29 and a balancing force from a bellows 43. The spring 29 is acted on by an adjustable nut 28, 30 on the screwed part 29 of a rotating spindle 6 which is connected at one end by a pin-and-slot connection 10,12 to a drum 2 on which is wound a tape 3 connected to a float 4. The lever 13 controls a flapper 35 which co-operates with a nozzle 37 the back pressure of which constitutes the output signal and is fed to an indicator or controller and to the feedback bellows 43 which at one end is adjustably connected to the lever 13. An adjustable stop limits movement of the lever 13. The transmitter is mounted on a main casing 1 on top of a tank in which the liquid level is being measured or controlled. The shaft 6 is supported by two ball bearings 18, one located in a bearing plate 21 and the other mounted on a U-shaped frame 19, 20. The lower part of the transmitter may be filled with oil through an oil filter plug. A vent plug may be screwed in to seal the transmitter when not in use.