baber/WOPTO huggingface dataset:
Patent GB-1002797-A (GB)
Title: Electrical ignitors
Inventor: BETTERIDGE CECIL GEORGE
IPC: F23Q3/00
Filed: 1964-08-05
Abstract: 1,002,797. Electrical igniters. FUEL FIRING Ltd. Aug. 5, 1964, No. 31735/64. Heading F4F. An electrical igniter has a head, Fig. 1, which can be screwed into a body, Fig. 2; the head comprises a conducting tube 37 spaced from a metal casing 10 by insulators 17, 22, 23 and containing a copper-coated electrode 40 biased by a spring 41 against a carbon plug 11 held in the end of casing 10 which is closed by a removable cap 12, the casing being apertured at 19, 20 for admittance of fuel to be ignited. A pin 33 has a conducting connector plug 36 for a tight fit in a conducting sleeve 52 in an insulating block 52, Fig. 2, in the metal casing 50 of the body, a conducting rod 57 being mounted in casing 50 by insulating blocks 52, 64. The casing 50 can be screwed on to a sleeve 24, Fig. 1, which is screwed into casing 10. The rod 57 and casing 50 are connected at 83, 85, respectively, to a power supply controlled by a switch 86. When member 87 actuates the switch, current flows through the electrode and casings to heat plug 11 which glows and ignites the fuel. A short head for fixing in a combustion chamber, Fig. 3, not shown, incorporates a diaphragm to open a pair of contacts when the fuel has ignited. The igniter control circuit may include a solenoid controlled valve to prevent fuel being supplied to a burner until the igniter element is hot enough to ignite the fuel.
Patent GB-541037-A (GB)
Title: Improvements in or relating to ignition and starting systems for internal combustion engines
IPC: F02P15/12
Filed: 1939-12-08
Abstract: 541,037. Igniting systems. MULLER, H., and MILLER, W. Dec. 8, 1939, No. 31778. [Class 7 (iv) The electric field set up by the current supplied to the starting-motor is used to enhance the inductive effect in the ignition circuit by reducing its impedance. In the construction shown in Fig. 1, the lead K of the starting circuit runs through a core on which is wound a coil L included in the primary circuit of the ignition system. Instead of being connected to the battery B the coil may be arranged in series with the primary winding of a magneto. The lead may run close to the core of a shell transformer carrying the primary and secondary winding of the ignition circuit. A switch actuated by the changes of flux density in the transformer may control the ignition circuits. In Fig. 6 a half-wave rectifier R is located in the primary winding of the ignition circuit. K is the lead of the starting circuit. Fluctuations in the starting motor current strength may act electro-magnetically on an armature associated with the ignition transformer to introduce a gap in the magnetic circuit relatively strengthening the part of the circuit bearing the inductive windings.
Patent GB-1521733-A (GB)
Title: Transistor amplifiers
IPC: H03B11/10
Filed: 1975-07-31
Abstract: 1521733 Automatic voltage control SIEMENS AG 31 July 1975 [22 Aug 1974] 32017/75 Heading G3R The sinusoidal output voltage of a transistor amplifier is regulated by rectification and comparison with a reference in a differential amplifier, the output of which is connected to the input of a second stage of the amplifier. The first stage of the amplifier receives a rectangular voltage signal, in the absence of which the first stage is conductive but the second stage is blocked to minimize current consumption. As shown in Fig. 1, a two-stage amplifier T1, T4 receives a rectangular signal through a resistor R2 and capacitor C2. The signal may be 12 KHz pulses applied directly, or 4 KHz pulses derived from the 12 KHz signal by two flip-flops and a NOR-gate IC2. The amplified rectangular signal is supplied to a transformer circuit Ul, tuned to produce an undistorted sinusoidal output, a sample of which is rectified by a diode D3 and fed via a resistor R9 to one transistor T3 of a differential amplifier, the other transistor T2 of which is biased by a Zener diode Dl. When this Zener reference voltage is exceeded by the sample output voltage, a correcting voltage is applied to the base of the second stage transistor T4 in order to regulate the output voltage. A filter transistor T5 provides harmonic suppression in the operating current supply.
Patent GB-287635-A (GB)
Title: Improvements in or relating to the manufacture of sheets or films of compositions containing cellulose esters or ethers
IPC: B29C71/00
Filed: 1926-12-23
Abstract: 287,635. Spicers, Ltd., and Hands, H. J. Dec. 23, 1926. Electricity, discharging from paper, fabrics, and the like. - Sheets or films of compositions containing esters or ethers of cellulose, such as cellulose acetate, are passed, after leaving the surface on which they are formed, through a space maintained charged with water-vapour at a raised temperature, thereby removing, any electric charge from the surface. Fig. 1 shows an extended hood 13 within which are guide-rollers 14 for the sheet or film 11, coming from an endless band on rollers 10. Steam is supplied to the hood through pipes 17. Tensioning rollers 16 may be provided or the film may be otherwise tensioned. The hood may be replaced by a chamber having rollers at the top and bottom over and under which the film is passed or by a tunnel to which moistened air is supplied by means of fans.
Patent GB-463933-A (GB)
Title: Improvements in or relating to decorative surfaces and method of making same
IPC: B29C37/00
Filed: 1936-11-28
Abstract: Articles, such as bathing caps, made wholly of rubber or rubber composition are made by forming a deposit on a backing surface, e.g. by dipping, electrodeposition, spraying or spreading, applying a removable mask over parts of the deposit, and spraying latex under such conditions that droplets are deposited and coagulated without running together.  The mask is then removed and the article stripped. The deposit may be sprayed to give it a pebbled surface before applying the mask; the layers may be of different colours.  The sprayed droplets are caused to coagulate before or as they reach the surface, by spraying through heated air or by alternately spraying latex and coagulant.  The mask may be of paper, fabric, metal or sheet rubber, and may be in tape or ribbon form.  Specification 374,723 is referred to.
Patent GB-418052-A (GB)
Title: Improvements in or relating to automatic rigid link couplings for vehicles
IPC: B61G3/16
Filed: 1933-11-22
Abstract: 418,052. Automatic couplings for railway &c. vehicles. SCHARFENBERGKUPPLUNG AKT.-GES., 25, Viktoriastrasse, Berlin. Nov. 22, 1933, No. 32630. Convention date, Nov. 22, 1932. [Class 103 (v).] In an automatic rigid link coupling for railway &c. vehicles of the kind in which the coupling hooks b are locked by means of rollers c<11> at the ends of levers C swinging about the same pivots d as the hooks b, each of the levers is of double-arm construction, one arm c carrying the locking roller c<11> and the other arm c<1> having a circular cam face n over which the roller on the opposed lever can ride. Springs a adapted to maintain the rollers in locking engagement, Fig. 3, with the rear of the hooks b are connected to levers at points P, which are the centres of the curves n, the object of this arrangement being to keep the distance c<11>, P constant and thereby constrain the four points c<11>, c<11>, P, P to maintain a parallelogram during the action of effecting a coupling. When the coupler-heads are to be disconnected, one of the operating-handles m with which the levers C are equipped is pushed forwardly as shown in Fig. 4, and the opposed roller c<11> rides up the face of the cam n and lodges in a recess to the rear thereof, so preventing return of the lever to its original position. In this condition the hooks b are freed from the locking restraint of the rollers c<li>, and the couplings mutually disengage when any tractive effort is applied to separate the two vehicles coupled.
Patent GB-919314-A (GB)
Title: Mold forming apparatus for foundry use
IPC: B22D13/02
Filed: 1959-09-25
Abstract: 919,314. Casting - machines; moulding- machines. HERMAN PNEUMATIC MACHINE CO. Sept. 25, 1959 [Feb. 2, 1959], No. 32638/59. Class 83 (1). [Also in Group V] Moulding and casting apparatus comprises a first station at which a pattern is centrally disposed in a horizontal flask and finelydivided moulding material is blown therein. At a second station to which the flask is shifted while maintaining its axis horizontal the moulding material in the flask is compacted. A flask received on a platform 2 is lowered to a position shown dotted in Fig. 2 from which it is pushed on to rails 3 against a stop 5. Withdrawal of the stop allows the flask to roll on to a carriage 6. which is then moved transversely by a piston 10 to seat the end of the flask against a blowhead 11, while a pattern 15 on a carriage 13 is moved into the flask. Sand is then blown into the flask to form a tubular relatively uncompacted mould. The carriages are then restored to their former positions and the flask containing said mould is moved on by a piston operated arm 20 and deposited on a saddle 23 on a shuttle beam 24, described and claimed in the identical Specification 919,315 [Group XXX], which is referred to. Operation of the beam lifts the flask upwardly in said saddle, advances it and then deposits it on driven rollers 28 from which the preceding flask has been removed by a second saddle 25 on the beam. At this station a freely rotatable mandrel 33 on a carriage 32 is moved into the rotating mould, engaging a centring member 37 on a carriage 34 and entering the opposite end of the flask. The mandrel and centring member are mounted in vertically movable carriers which are then moved downwardly by pistons so that the mandrel engages and compacts the sand in the flask. The moulded flask is then lifted from the rollers 28 by the saddle 25 and eventually moves on to a second shuttle beam 39, by which it is placed in driven rollers 46-18 together with a preceding flask, so that two moulds are poured simultaneously from tiltable ladles 54 mounted on a carriage 52. The two poured moulds are then lifted by the beam 39 and deposited on a runway 50 where the castings cool down until ejection by a pusher 62. The empty flasks are then elevated to the overhead rails 68 on which they roll to the lift 2 for remoulding.
Patent GB-1435408-A (GB)
Title: Reversible light-sensitive glass
IPC: C03C3/095
Filed: 1974-07-24
Abstract: 1435408 Light-sensitive glass HOYA GLASS WORKS and HOYA LENS CO Ltd 24 July 1974 [9 March 1974] 32644/74 Heading C1M [Also in Division C4] A reversible light-sensitive glass comprises: (a) 100 parts by weight of a base glass composition consisting of, in weight percent: where R is one or more of Na, K and Li; the total of Nd 2 O 3 , Sm 2 O 3  and PrO 2  is not more than 2À5; the total of Nd 2 O 3 , Ho 2 O 3  and Er 2 O 3  is 0À2-2À5; and the weight ratio BaO/R 2 O is 0À035-0À65; and (b), as light-sensitive components, 0À15-1 part by weight of Ag, and one or more of the halogens Cl, Br and I, the ratio of the number of halogen ions to the number of Ag ions being more than 1. The light-sensitivity may be developed by heating to, e.g., 580 C. for 2À5 hours.
Patent GB-1209324-A (GB)
Title: Improvements in or relating to counting units and apparatus utilizing same
Inventor: TRACEY CHARLES ARTHUR
IPC: G09B19/02
Filed: 1967-07-15
Abstract: 1,209,324. Educational appliances. PHILOGRAPH PUBLICATIONS Ltd. 8 July, 1968 [15 July, 1967], No. 32661/67. Heading G5G. A counting unit A having a bore 12 is provided with at least one resilient element 16 which extends part way across the bore and is arranged to exert pressure upon a guide C. The guide C is provided with a removable terminal button D and marker tabs E may be provided.
Patent GB-1000893-A (GB)
Title: 1,8-naphthyridine-3-carboxylic acids and derivatives
IPC: F16D65/10
Filed: 1961-12-22
Abstract: The invention comprises 4-hydroxy-7-[2-(lower - aromatic) - ethenyl] - 1,8 - naphthyridine-3-carboxylic acids and their salts and esters ("lower-aromatic" denoting radicals having one or two aromatic rings which may be benzenoid or 5- or 6-membered hetero-aromatic, especially a phenyl radical which may optionally carry 1-3 halo, nitro or C1- 6-alkyl, -alkoxy or -alkylmercapto substituents), and particularly compounds of the general formula <FORM:1000893/C2/1> wherein X represents -COOH or -COO(C1- 6-alkyl and Q represents a (monocarboxylicaryl having 6 ring-carbon atoms)-ethenyl radical in the 7-position.  The compounds are prepared by reacting a corresponding C1- 6-alkyl 4-hydroxy-7-methyl-1,8-naphthyridine-3-carboxylate with a "lower-aromatic" aldehyde in the presence of a mixture of a lower alkanoic acid and anhydride, and, if desired, saponifying the resulting ester, and further, if desired, converting the free acid into other esters or into salts thereof, including salts with amines (e.g. diethanolamine or N-methyl-glucamine).
Patent GB-1386037-A (GB)
Title: Method for manufacturing laminated material constisting of at least one layer of synthetic plastics material
IPC: B32B27/00
Filed: 1973-07-10
Abstract: 1386037 Laminated plastics PRESS- & STANZWERK PAUL CRAEMER KG 10 July 1973 [26 July 1972] 32725/73 Heading B5N [Also in Division B2] Laminated material is manufactured by fusing with a first layer of synthetic plastics material a second layer of at least similar material, causing this second layer to solidify such that it becomes porous and/or cellular at least in the boundary region of its free surface, maintaining or rendering this surface open-pored, applying a third layer of a material which is rendered sufficiently capable of flowing that it can be introduced into the open pores of said boundary region and allowing it to solidify therein. The first and second layers may be of polyethylene, polypropylene, polystyrene, PVC, polyamide or terpolymer, the second layer also containing a blowing agent at least in its outer regions. The first layer may be formed by extrusion or in a mould by rotary sintering and the second layer may also be formed by rotary sintering or by flame spraying of powder. The third layer may be of glass-fibre reinforced polyester resin (to form a packaging material), cement or concrete (to form a prefabricated constructional element), or rubber dispersion containing fine-grained mineral, chalk, powdered shale or wood chips as filler (to form a pallet).
Patent GB-198712-A (GB)
Title: Improvements in or relating to rotary driven coal cutting machines and the like
IPC: E21C25/58
Filed: 1921-12-06
Abstract: 198,712. Drinnan, J. Dec. 6, 1921. Percussive channelling-drills. - In a coal &c. cutting machine having a reciprocating and rotating cutter bar or drill cutting on the end only and fed laterally between cuts and when disengaged from the coal, the drill is carried by a chuck i on a hollow spindle d which is reciprocated and rotated by means of a uniformly accelerated motion toothed cam held between adjustable roller bearings k and driven through a pinion c, preferably by an electric motor. A nut f at the rear of the machine casing is engaged by a feed screw e. The machine is mounted on a column about which it is adjusted between cuts by worm gearing.
Patent GB-392629-A (GB)
Title: Improvements in hydraulic couplings or gears
IPC: F16D33/16
Filed: 1931-11-25
Abstract: 392,629. Hydraulic transmission of power. SINCLAIR, H., 6, The Crest, Surbiton Hill, Surrey. Nov. 25, 1931, No. 32738. [Class 69 (ii).] A hydraulic coupling or gear has means adapted to reduce the rate of increase of liquid content when the speed of a rotatable member of the coupling increases. In one form, the driving or driven shaft has an enlarged part 11, Fig. 1, provided with radial inlet ports 12, the increase in centrifugal force when the speed of the shaft increases diminishing the inflow of liquid. In a modification, both driving and driven members have radial inlet ports 12d, 35, Fig. 5. In another form, the inflow is controlled by back pressure created in a space 22, Fig. 2, by the circulation velocity in the coupling circuit. The form shown in Fig. 3 has an inlet tube 25 terminating in a radial or tangential mouth disposed in an annular chamber 24; the chamber may be formed by a partition 23, in which case a port 26 is provided. A further form has a chamber 29, Fig. 4, which may have ports 32 for discharging foreign matter, with oblique ports 30. All the above forms have ports 8 or 8a for allowing a continuous flow out of the circuit. The form shown in Fig. 6 has outlet ports 8e controlled by a valve, and the coupling is designed to secure rapid initial filling of the circuit followed by slow filling. The driven member has a vaned inlet passage 41, the casing has a channel 40<1> provided with vanes 48, and ports 47, 46 are provided. Specifications 328,028, [Class 69 (ii), Hydraulic presses &c.], and 378,726 are referred to.
Patent GB-618564-A (GB)
Title: Improvements in and relating to the drying of pottery ware and similar goods
IPC: B28B11/24
Filed: 1946-11-05
Abstract: 618,564. Pottery-drying stoves. BOULTON, Ltd., W., and LEWIS, R. T. Nov. 5, 1946. No. 32765. [Class 34(ii)] The circular drying compartment 10 is intermittently rotated for loading and discharging, and has a number of radially divided chambers each containing one set of shelves 11. Each chamber carries two vertical air pipes 16 which register with holes 15 in the air supply chamber 14. The air passes from heater 19 and chamber 14 to pipes 16, and is discharged through perforations 16a to the shelves in the horizontal direction. Passing from compartment 10 through outlets 17 the air is recirculated, a portion being exhausted at 22, fresh air being admitted through an opening 21. Specification 493,852 is referred to.
Patent GB-522423-A (GB)
Title: Improvements in or relating to electric theft alarms
IPC: B60R25/10
Filed: 1938-11-11
Abstract: 522,423. Theft alarms. BROWN, J. C., and BROWN, H. B. Nov. 11, 1938, No. 32834. [Class 118 (i)] [Also in Group XXXVII] An electric theft alarm system, particularly for, use on motor vehicles, includes a keyoperated switch having main contacts l operated by the correct key c when fully inserted and angularly moved and auxiliary contacts e operated by angular movement if any but the correct key is used, to cause the alarm to sound and if desired to break the ignition circuit. The contact l is actuated by an arm k on a disc d which is rotated when the correct key enters a slot therein. The contacts e each consist of a pair of spring fingers which make contact when touched by a false key. A hot wire delayed action switch may be incorporated in the alarm circuit to permit the driver to enter the car and adjust the key switch without immediately starting the alarm.
Patent GB-366140-A (GB)
Title: Process for the manufacture of derivatives of ª‰-hydroxynaphthoic acid
IPC: C07C65/11
Filed: 1930-11-01
Abstract: Alkoxy or alkylthio derivatives of 2 : 3-hydroxynaphthoic acid are made by causing carbon dioxide under pressure to act on an alkali salt of an alkoxy or alkylthio derivative of b -naphthol or on the free naphthol in the presence of an alkali carbonate.  In examples (1) the sodium salt of the monomethylether of 2 : 6-dihydroxynaphthalene is treated with carbon dioxide to give 6-methoxy-2 : 3-hydroxynaphthoic acid; (2) the sodium salt of the monomethylether of 2 : 7-dihydroxynaphthalene similarly yields 7-methoxy-2 : 3-hydroxynaphthoic acid; (3) the sodium salt of 6-methylmercapto-2-naphthol similarly yields 6-methylmercapto-2 : 3-hydroxynaphthoic acid; (4) 5-methoxy-2-naphthol is heated with potassium carbonate and carbon dioxide to give 5-methoxy-2 : 3-hydroxynaphthoic acid.  5-Methoxy-2-naphthol is made together with 6-methoxy-1-naphthol by methylating 2 : 5-dioxynaphthalene with methyl alcoholic sulphuric acid and it is isolated as the difficulty soluble sodium salt.
Patent GB-1381819-A (GB)
Title: Bottom-drainage valve assembly and container to which it has been applied
IPC: F16K1/50
Filed: 1973-07-10
Abstract: 1381819 Valves CARL-ZEISS-STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 10 July 1973 [21 July 1972] 32944/73 Heading F2V A drainage valve insertable into an outlet 2 at the bottom of a container 1 comprises a valve member on a valve spindle 4 coacting with a valve seat on the upper end of an insertable bushing 3, a bellows one end of which is attached to the spindle and the other end clamped between a sleeve 8 and a vertical pipe 7 that is integral with the valve housing 6, and a discharge pipe 11. A pin 12 in the spindle locates a groove 13 in the sleeve 8 to prevent excessive movement of the valve member.
Patent GB-1530569-A (GB)
Title: Semi-synthetic oleandomycin derivatives-c8 modifications
IPC: A61P31/04
Filed: 1977-08-05
Abstract: 1530569 Oleandomycin derivatives PFIZER Inc 5 Aug 1977 [6 Aug 1976] 33001/77 Heading C2C The invention comprises the compounds and their pharmaceutically acceptable salts, where R, R 1  and R 2  are H or C 2-3  alkanoyl; Z is -N=CHN(R 3 ) 2 , -N(R 3 ) 2 , -NHR 5 , -NH 2 , -OR 4 , -N 3 , -Cl or imidazol-1-yl, where R 7  is C 1-3  alkyl, R 4  is H, C 2-6  alkanoyl or -SO 2 R 7 ; R 5  is -COR 6  or -SO 2 R 7 ; R 6  is H, C 1-6  alkyl, NH 2 , C 1-6  alkyl-amino, pyridyl, anilino, α-thienyl or phenyl optionally substituted by halogen, C 1-4  alkyl, (C 1-4  alkoxy)- carbonyl, CF 3 , C 1-4  alkoxy, CONH 2  or NO 2 ; and R 7  is C 1-6  alkyl, or phenyl optionally substituted by C 1-4  alkyl, Cl or CF 3 . The compounds of the invention are prepared from optionally acylated oleandomycins by conventional methods. The compounds of the invention are active against Gram-negative and Gram-positive organisms and may be administered in the form of pharmaceutical compositions.
Patent GB-916748-A (GB)
Title: Improvements in or relating to multi-speed axles
IPC: F16H3/64
Filed: 1961-09-14
Abstract: 916,748. Differential gears. EATON AXLES Ltd. Sept. 14, 1961 [Nov. 16, 1960], No. 33058/61. Class 80 (2). In a bevel differential gear combined with a two-speed epicyclic gear the sun-wheel controlsleeve 66 of the latter is engageable by a lock-up clutch member 80 on one output shaft 16 when the sleeve is positioned for high gear ratio but not when positioned for low ratio. As shown, the right-hand end of sleeve 66 is formed as the sun wheel 68, and has radial teeth 69 engageable with teeth 72 on a holding member 67, together with facial teeth 70 at its left-hand end. When moved to the left outer position by a control lever 76, as shown, wheel 68 engages planet pinions 59 and teeth 71 on carrier 57, the teeth 69, 72 being out of engagement, and in this position clutch member 80 may be moved to the right by a second control lever 84 to enable teeth 81 to engage teeth 70 on sleeve 66, and thus to lock the bevel differential. When sleeve 66 is moved to the right and locked by engagement of teeth 69, 72 to serve as the reaction member of the epicyclic gear, engagement of clutch member 80 with sleeve 66 is prevented by the control-lever 84 contacting an abutment 87.