baber/WOPTO huggingface dataset:
Patent GB-356207-A (GB)
Title: Improvements in machines for making telephone cables
IPC: H01B13/02
Filed: 1930-06-04
Abstract: 356,207. Cables. STANDARD TELEPHONES & CABLES, Ltd. and DEACON, H. J., Columbia House, Aldwych, London. June 4, 1930, No. 17222. [Class 36.] A machine for twisting up electric telephone cables of the type formed of pairs, quads or groups of pairs or quads comprises a rotatable yoke adapted to twist up a pair of wires, and a second rotatable yoke to twist up another pair of wires, the yokes rotating at different speeds and a rotatable cage being provided to twist the pairs together. The yokes are disposed and rotated in axial alignment, the cage also rotating about the same axis. In the construction shown, a yoke 6 is mounted on columns 21, 22 and carries a reel 8 of paired wire 10. A cage 14 consisting of lateral bars 36 and transverse bars 37 is mounted between columns 20, 21. In the cage 14 is rotatably mounted a yoke 7 carrying a reel 9 of paired wire 11. Through a chain of gearing, the rotary movement of the cage 14 is adapted to rotate the yoke 7 and the speed of the yoke 7 can be varied by varying the gear train. The pair 10 is led through a hollow bearing, over guides and round the yoke 7, as shown, to a forming die 28 fixed to the cage 14 and then through a hollow bearing 3 to meet the pair 11. The pair 11 passes from the reel 9 to the plate 28 and through the hollow bearing 3 where it is formed into quads 13 with the pair 10. The speed and direction of rotation of the yokes 6, 7 is varied by varying the gear trains. In a modified construction for twisting four wires into a quad each yoke 6, 7 carries two wheels set one behind the other, the wires on the two reels being twisted up as they leave the yoke, and the twisted pairs being formed into a quad at the exit end of the cage.
Patent GB-953337-A (GB)
Title: Improvements relating to gas dispensing means
IPC: B67B7/08
Filed: 1960-05-16
Abstract: 953,337. Opening bottles. R. O. LIGHTFOOT. May 16, 1960, No. 17254/60. Heading B8T. [Also in Division F2] A gas cork remover comprises a housing 10 for a gas container 22 which is pierced by a member 17 on mounting the container in the housing. The member 17 has a through passage 18 whose end forms a seat for a spring loaded valve closure 19 formed on the end of a discharge needle 40 which is inserted through the cork. A lateral passage 42 leads into the needle which is moved away from the seat against the spring loading by a lever 56 to dispense the gas into the bottle. In a modification the end of the needle forms the piercer which deforms the gas container to form the valve seat.
Patent GB-1259941-A (GB)
Title: Anit-thief device for engines relying on a source of electrical supply for their operation
Inventor: BARRY THOMAS JOHN
IPC: B60R25/04
Filed: 1968-04-10
Abstract: 1,259,941. Preventing unauthorized use of vehicles. TOOLING SERVICE Ltd. 25 March, 1969 [10 April, 1968], No. 17314/68. Heading B7J. [Also in Division F1] Unauthorized starting of the driving motor of an electrically propelled vehicle is prevented by a circuit for controlling the starting and containing a first manually operable switch for opening and closing the circuit and a thyristor, and a second manually operable switch between the gate of the thyristor and an earth or return connection, closure of the second switch when the first switch is closed causing the thyristor to become conductive so as to fully close the circuit. Closure of a control switch 2 does not energize the driving motor until a secret switch 12 (which may be a push-button switch for momentary operation) is also operated to apply a forward voltage to the gate 5 of a thyristor 4, thereby rendering the thyristor conductive to complete the circuit. A resistor 7 ensures that the current through the thyristor does not fall below the hold value.
Patent GB-440710-A (GB)
Title: An improved spring lock nut
IPC: F16B39/286
Filed: 1935-06-15
Abstract: 440,710. Lock-nuts. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.- (Renchtite Spring Nut Co. ; 557, Market Street, San Francisco, U.S.A.) June 15, 1935, No. 17316. [Class 89 (i)] Lock-nuts are formed with a slot inclined to the longitudinal bore of the nut, the slot being stepped at 3 towards the surface of the nut. With this construction, whilst in use the inner surfaces of the nut contact, the stepped portion remains open and prevents the spring- action being destroyed by rusting up. The under surface of the nut is provided with a rounded fulcrum 5.
Patent GB-1505261-A (GB)
Title: Camera tube with a pyro-electric target
IPC: H01J29/02
Filed: 1975-04-25
Abstract: 1505261 Image pick-up tubes THOMSONCSF 25 April 1975 [26 April 1974] 17371/75 Heading H1D The target of an I.R. camera tube comprises pyroelectric material 4 on a thin plate 2 stretched over a thick metal ring 1. In one embodiment, a mica plate 2 is bonded to a Ti or FeNi alloy ring 1 whilst the ring is hot so that on cooling, differential contraction tensions the mica. The pyroelectric material is TGS fixed to the mica with paraffin, silicone oil or grease. The ring 1 is bonded to the camera faceplate 6 with epoxy resin. Metal coatings on the material shown 8, and on the plate, (dotted line) provides electrical contact to the material. In another embodiment, the plate 2 is of polyester 2Á thick secured to a ring in two halves.
Patent GB-625327-A (GB)
Title: Improvements in process of preparing new amino substituted 2-alkyloxy-5-aminopyridines
Filed: 1946-06-11
Abstract: Amino-substituted compounds of 2-alkyloxy or 2-alkoxy alkyloxy-5-aminopyridines are prepared by condensing a compound of the formula <FORM:0625327/IV (b)/1> where R is a saturated or unsaturated alkyl or alkoxyalkyl radical with an aromatic aldehyde such as benzaldehyde, salicylaldehyde or cinnamylaldehyde.  The products are used as bactericides and are effective against Mycobacterium tuberculosis.  In examples: (1) 2-butoxy-5-aminopyridine is condensed with benzaldehyde, and (2) 2-hexyloxy-5-aminopyridine is condensed with benzaldehyde.  The Specification as open to inspection under Sect. 91 comprises also the preparation of condensation products of glycose with the above aminopyridines and contains a wider definition of the group "R," to include cyclic radicals.  This subject-matter does not appear in the Specification as accepted.
Patent GB-292173-A (GB)
IPC: G01R15/14
Filed: 1928-06-16
Abstract: 292,173. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). June 16, 1927, [Convention date]. Pressure meters.-For measuring alternating- current voltages in single or polyphase circuits, a condenser is connected to each of the two points between which the voltage is to be measured, and the vectorial sum of the charging currents to the two condensers is supplied, after rectification, to a direct-current measuring-instrument. As shown applied to a three-phase high-tension network a, three condensers b, preferably of equal capacity, are connected between the line conductors and auxiliary transformers c, which have their primary windings connected in zig-zag and centre-tapped secondary windings. The outer terminals of each secondary winding are connected to the anodes of a pair of valves d, or of a single valve having two anodes. The cathodes are connected together and to the centre of the secondary winding of the associated transformer through a direct-current measuring-instrument e. which indicates the vectorial difference of the charging currents of two condensers, which is proportional to the interphase voltage.. Other kinds Of unilateral conductivity devices may be used, such as electrolytic rectifiers. The transformers c may be combined to form a rotating field transformer.
Patent GB-565370-A (GB)
Title: Improvements in or relating to the production of corrugated thermoplastic sheet material
IPC: B29C51/22
Filed: 1942-12-09
Abstract: 565,370. Corrugating thermoplastic sheet material. WATSON, F. (Munters' Industri Aktiebolag.). Dec. 9, 1942, No. 17513. [Class 87 (ii)] The hot sheet is passed between rollers having intermeshing teeth, and is then transferred to a supporting surface, such as a roller, having a contour similar to that of the sheet, and retained on the surface until it has cooled and hardened. The sheet may be heated prior to or during (or prior to and during) its passage between the rollers. Fig. 1 shows an arrangement in which transparent sheet material, such as acetyl cellulose 26 is led between steamheated corrugating rollers 28, 29, and then on to a cold roller 30. The sheet 26 may be pre-heated, prior to its passage between the rollers 28, 29, by means of hot air or pre-heating rollers, and may be heatinsulated, as at 50. Two plane sheets 34, 40 of acetyl cellulose are stuck to the corrugated sheet, which for this purpose is moistened with solvent or adhesive at 32, and the compound sheet is pressed between belts 42, 43, where it is dried with air which may be heated. A pump 47 sucks out. solvent, which is absorbed by silica gel. At the moment of joining, the two sheets 26, 24 should be at the same temperature (to prevent crinkling) ; using this precaution, sheets having different coefficients of thermal expansion may be united. To allow expansion of the sheets, the teeth of the rollers 28, 29, 30 may intermesh with some play. One plane sheet only may be applied to the corrugated sheet, or more than three may be united, alternate sheets being corrugated. Fig. 2 shows a modification in which three rollers 126, 111, 131 having radial bores 125 rotate about hollow heated shafts 127, 114 and a water-cooled shaft 132. The shafts are cut away to form recesses 130, 115, 118, 133 and 137. The recesses 130, 118 and 137 communicate with the atmosphere or with compressed air, and the recesses 115 and 133 with vacuum. As the sheet 143 passes through the rollers it is blown off roller 126 by air from recess 130, sucked on to roller 111 by vacuum from recess 115, blown off by air from recess 118, sucked on to roller 131 by vacuum from recess 133 and blown off by air from recess 137. Compressed air may be introduced also to the space between a screen 145 and the rollers 111, 131. The bases of the inter-tooth spaces may have axial grooves communicating through the bores 125 with the suction &c. recesses. Instead of rollers, toothed endless belts may be used.
Patent GB-624332-A (GB)
Title: Improvements in or relating to x-ray tubes and energising systems therefor
IPC: H01J35/22
Filed: 1947-07-03
Abstract: 624,332. Supply systems for X-ray tubes; condenser arrangements. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 3, 1947, No. 17544. Convention date, May 25, 1940. [Class 38 (iv)] [Also in Groups XL (a) and XL (c)] Fig. 5 shows a supply system for an X-ray tube. The condensers 36, 39 are charged by rectifiers 35, 38 but cannot discharge through the X-ray tube 5 owing to the spark gaps 37, 46. Condenser 62 is charged by rectifier 69 and is connected across valve 54 which is non- conducting owing to the large bias from battery 56 applied to its grid. When switch 59 is opened, valve 54 conducts, discharging condenser 62 and generating a pulse in the primary of transformer 43. The pulse from the secondary of this transformer breaks down spark gap 46 which in turn enables the gap 37 to be broken. The H.T. thus supplied to the tube initially falls between the cathode 13 and auxiliary electrode 14 and the high potential gradient causes field emission of electrons from the cathode. This causes current to flow in resistance 47 so that the auxiliary electrode drops almost to cathode potential and the discharge transfers to the main anode 8. A resistance 48 is provided in parallel with the tube and serves to control the breakdown voltage of gap 37 so that it is always uniform. The entire discharge may take about 2 microseconds and currents of several hundred amps may be used.
Patent GB-543010-A (GB)
Title: Improvements in or relating to light buoys for seadromes or the like
IPC: B63B22/16
Filed: 1940-12-11
Abstract: 543,010. Converting. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Dec. 11, 1940, No. 17552. Convention date, Dec. 13, 1939. [Class 38 (ii)] [Also in Groups XI and XXXVIII]  A light buoy for use at Seadromes &c. comprises a float or buoy 10, preferably of the pneumatic type, supporting a detachable housing 16 containing a battery assembly 13 and a power pack assembly 14 and carrying on a tubular standard 61 a light assembly 15 consisting of a gaseous discharge lamp 53 surrounded by a globe 56. The battery assembly 13 comprises battery units 24 and spacers 25 clamped together in a frame consisting of bottom and top plates 26, 27, rods 28 fitted with wing nuts 30, and a lifting strap 33. This assembly is inserted in the lower part 17 of the housing 16 and rotated so as to be held in position by inwardlly projecting ears on a flange 22. The power pack assembly 14 comprises a transformer 39, an inverter 41, and a push switch 44 mounted on a plate 42 which is secured to lugs 43 on the upper part 18 of the housing 16. The lower and upper parts 17, 18 of the housing 16 are secured together at a watertight joint 19 by screws 23 and are retained by a spring-biased latch 71 within a cage 65 carried by the buoy. The buoy is anchored by a chain attached to a ring 72 on the cage 65. Fig. 5 shows the preferred electrical circuit in which the switch 44 is arranged in the circuit of a magnet operating vibrating reed members 74, 75 carrying contacts 77 which move in relation to stationary contacts 78 to change the direction of the primary current through the transformer 39.
Patent GB-430210-A (GB)
Title: Method of modulation for carrier wave transmission
IPC: H03C1/62
Filed: 1934-08-29
Abstract: 430,210. Valve modulating systems. POHJANPALO, J. J., 56 C30, Runeberginkatu, Helsinki, Finland. Aug. 29, 1934, No. 17644. [Class 40 (v)] A modulation system of the floating-carrier type utilizes a diode G for the rectification of the signal, and both the signal voltage supplied through a transformer T and the rectified voltage appearing across the resistance R are applied to the grid of the modulating valve M. A condenser C gives a suitable lag to the rectified voltage. As shown, the modulating-valve M is in series with the carrier wave amplifier L, but in another form, the modulating-valve M has the carrier wave applied to its grid.
Patent GB-482361-A (GB)
Title: Improvements in change-speed devices
IPC: F16H29/18
Filed: 1936-06-25
Abstract: 482,361. Variable - speed gearing. LAILLE, R., and ROBERT, G. June 25, 1936, No. 17698. Void. Convention date, July 1, 1935. [Class 80 (ii)] A variable-speed drive from a shaft A to a shaft R is effected by ratchet devices between these shafts co-operating with an eccentrically displaceable drum D. These ratchet devices comprise segments B guided in circular grooves in the drum D and slidable in radial slots in disc members A<11> on the shafts A and R which co-operate with rocking pawls C<1> on the drum D. When the drum is concentric a direct drive takes place but on eccentric displacement it is driven from the shaft A at a higher speed and in turn drives the shaft R at a still higher speed. Friction or other one-way driving devices may be employed in place of the ratchet segments B. In the arrangement in Figs. 9-12 drums D<1> are secured to the driving and driven shafts and an intermediate shaft with slotted discs A<1> carrying segmental members B is eccentrically adjustable to vary the speed ratio. The segmental members B each carry a nest of small steel blades U which for a period of each revolution determined by a cam surface R<1> on the casing acting on push-pieces P, is pressed into the form of teeth at its sides, which teeth engage in teeth P<11> on the side plates of the drum D<1>. Thus successive segments B effect a positive drive connection between the drum D<1> and the corresponding disc A<1> as they come adjacent the cam surface R<1>, which arrangement allows both a speed reduction and a speed multiplication to be obtained by the same mechanism. These teeth may be formed however so as to drive in one direction only. In a modification, a wider speed variation is obtained by arranging two of these mechanisms in series.
Patent GB-108991-A (GB)
Title: Improvements in or relating to Anti-friction Devices for Sliding Doors, particularly for Show Cases, Counters, and other Shop and Office Fixtures.
IPC: E05D15/06
Filed: 1916-12-11
Abstract: 108,991. Elliott & Sons, S., and Lyons, C. Dec. 11, 1916. Rectilinear-motion bearings.-The sliding doors of glass counters, show cases and other shop and office fixtures are provided at the lower angles and other parts with ball or roller bearings, in which the balls &c. run in an endless race and upon a rail which projects through a slot or opening in the lower part of the frame. Figs. 2 and 3 show the endless ball race which is formed between a body part b<1>, a hardened steel block c and two side plates b. The parts b<1> and c may be formed in one piece and be permanently secured to one of the side plates b, while the other side plate b is detachable, and the block c may be plain upon its upper edge and ends and be concave or V-shaped beneath. The side plates b are bent or flanged to prevent the falling away of the balls.
Patent GB-152747-A (GB)
Title: Improvements in the construction of road vehicles, particularly applicable to motor-driven road vehicles
IPC: B62K11/02
Filed: 1919-07-17
Abstract: 152,747. Sayers, W. H. July 17, 1919. Spring devices.-Motor cycles, side-cars, &c. are built up with separate wheel-frame units each comprising two side plates or frames connected together above and to the front and rear of the wheel, which is mounted between them on arms pivoted on the forward connexion and spring- supported from the rear connexion of the side plates or frames. Fig. 1 shows a unit having two side plates 1 connected by a peripheral member 3 serving as a mudguard and by bolts 5, 6. The wheel is carried centrally on a forked frame 7 pivoted on the bolt 5 and spring suspended as shown from the bolt 6. Fig. 4 shows a modification in which two frames having arms 12, 13, 14 are employed and the wheel carried by a fork 7 having leaf springs 10 at its rear end linked to the bolt 6. The arms 7 on opposite sides of the wheel in either form may be independently pivoted on the bolt 5. To form a four-wheeled vehicle, lugs on the inside of the frames are connected to transverse bars on which they may pivot for steering, the non-steering frames having additional bars connected to eyes on the bolts 5, 6. To form a motor-cycle two similar units are connected to frames pivoted about a steering axis, or the sideplates 1 may be extended as shown in Fig. 10 and pivoted about the steering axis. To form a sidecar combination, an additional wheel is connected to the rear wheel by parallel rods secured to eyes on the bolts 5, 6 and a diagonal stay extends to a forward part of the cycle.
Patent GB-259320-A (GB)
Title: Improvements in or relating to means for receiving and sending sound rays directionally
IPC: G01S1/72
Filed: 1925-07-13
Abstract: 259,320. Dicker, S. G. S., (Georz Optische Anstalt Akt.-Ges. C. P.). July 13, 1925. Locating sounds.- Consists of a combination of sound reflecting hollow surfaces one of which, serving as a receiving or sending reflector, is formed as a paraboloid of revolution and is arranged substantially unifocally with another hollow surface in the form of an ellipsoid of revolution which serves as an auxiliary reflector for transmitting sound waves from or to the first reflector. The paraboloid reflector A has a focus Fo which is also the focus of an elliptical reflector B. A sighting arm v with axis parallel to the axis x, x<1> of the reflector A may be provided. When used to find the direction of incoming waves, the boundary of the reflector A and of the admission opening of the reflector B is formed by a plane at right angles to the plane x Fo y and passing through the focus Fo and through the main meridian intersection point Ho. When used for sending directional sound impulses the edge of the sending reflector A and that of the exit of opening of the auxiliary reflector B is determined by a surface of a cone Ho Fo HI coaxial with Fo x and given by the generatrix Fo Ho. If the sound source is invisible, say an air-craft the form shown in Fig. 3 suitable for two observers is used one observer ascertaining the azimuthal and the other the vertical plane of sound. A forked bracket 2 rotatable in azimuth on a tripod carries journals for the supporting frame 3. Rigidly mounted on the frame are supports 4, 5 for the reflectors. These are arranged in pairs and reversed relatively one to another. Two combinations of reflectors 7, 8 form the azimuth while two combinations of three reflectors 9, 10, 11 form the vertical combination. Where sound waves from a remote and extended source of sound such as a theatre orchestra and stage are to be received microphonically the receiving paraboloid is provided laterally with two vertical auxiliary reflectors. In a further modification the device shown in Fig. 1 is duplicated and two sets each comprising a receiving or sending reflector and an auxiliary reflector are mounted to oscillate on a support so that the axes of the receiving reflectors may be inclined relatively to each other.
Patent GB-837876-A (GB)
Title: Oil-modified resins
Inventor: LEWIS THOMAS EDWARD
IPC: C08F212/14
Filed: 1958-06-05
Abstract: A process for obtaining an oil-modified alkyd resin comprises heating an ethylenically unsaturated, a -, b -dicarboxylic acid or anhydride with a modifying drying oil at a temperature of at least 100 DEG  C. until substantially all the dicarboxylic acid or anhydride has reacted, adding a polyhydric alcohol containing at least 3 hydroxyl groups so that the total number of alcoholic hydroxyl groups and carboxyl groups present in the reaction mixture are substantially equivalent, heating the mixture until the acid number falls below 20, adjusting the temperature of the reaction mixture to a value below 200 DEG  C., adding vinyl toluene and a polymerization catalyst and allowing the mixture to polymerize.  The acids are preferably maleic acid, fumaric acid, itaconic acid or citraconic acid.  The term drying oil includes the glyceride and similar esters of long chain unsaturated aliphatic acids which are capable of absorbing oxygen from air to give hard resinous products, and includes synthetic oils. Oils of the conjugated type e.g. tung, dehydrated castor, or oiticica oil; or non-conjugated oils such as linseed, soya, tobacco seed, niger seed, sunflower or safflower oil may be used.  Preferred alcohols are glycerol and pentaerythritol.  Peroxides and hydroperoxides may be used as polymerization catalysts.  In a preferred embodiment, 100 parts of raw linseed oil is heated to 140 DEG  C. and 5 parts of maleic anhydride and 2 parts of white spirit added and the temperature raised to 200 DEG  C.  3.9 Parts of pentaerythritol is then added and the mixture held at 240 DEG  C. until the acid number falls to 15, the mixture is cooled to 180 DEG C. and 56.9 parts of white spirit, 96 parts of vinyl toluene and 1.92 parts of ditertiary butyl peroxide added slowly.