baber/WOPTO huggingface dataset:
Patent GB-1236354-A (GB)
Title: Improvements relating to thermoelectric ignition safety devices
IPC: G01K7/06
Filed: 1969-09-24
Abstract: 1,236,354. Thermoelectric devices. JUN. KERS & CO. G.m.b.H. 24 Sept., 1969 [25 Sept., 1968], No. 47001/69. Heading H1K. A thermoelement comprises a pin-like inner conductor 11 surrounded by an outer conductor 12 which is shaped so that it is spaced from the inner conductor 11 over the majority of its length but closely embraces conductor 11 over a short length adjacent to the soldered hot junction 14 which is the only place at which the conductors are electrically connected together. The inner conductor 11 is soldered at 15 to a lead 16 provided with insulation 17 which is centred within an outer conductive tube 19 by means of an insulating sleeve 18 having an external diameter equal to that of the outer conductor 12. The tube 19 is provided with an internal seat 21 which engages the lower end of the sleeve 18 and is soldered at 20 to the outer conductor 12. The tube 19 is provided with an external stop shoulder 22 at the same longitudinal position as the internal seat 21, and the tube 19 and the inner lead 16 are terminated by a screw connector 23. When such a device is used in a thermoelectric ignition safety device the cooling time is required to be as short as possible consistent with providing the required thermoe.m.f. when the device is heated. According to the invention this is achieved by making the ratio of the distance between the hot junction 14 and the soldered joint 20 between the outer conductor 12 and the conductive tube 19 to the length of that part of the inner conductor 11 closely embraced by the outer conductor 12 from 3: 1 to 4: 1 and by making the total length of the inner conductor 11 not greater than the distance between hot junction 14 and joint 20.
Patent GB-1435025-A (GB)
Title: Rotor assembly for a rotary regenerative heat exchanger
IPC: F02C7/105
Filed: 1973-10-10
Abstract: 1435025 Bearings DAIMLER-BENZ AG 10 Oct 1973 [11 Oct 1972] 47333/73 Heading F2A [Also in Division F4] A rotor assembly for a rotary regenerative heat exchanger comprises a rotor 2 of disc form and bearing means by which the rotor is supported at its centre on an axle 3, which bearing means comprises a rolling bearing with barrel rollers 18 whose length is at least twice their maximum diameter, and an inner concave track surface 24 whose curvature is less than that of the rollers. The bearing comprises a cage made up of slotted end rings 21 carrying strips 20 which separate adjacent rollers. The rings 21 are retained by bushes 22. The disc 2 is of ceramic material, and is driven by a pinion 8. The heat exchanger comprises a fresh air inlet 11, and a hot gas inlet 13. The hot and cold sides are separated by sealing elements 15, 16. The element 15 is a ring seal with a transverse web 17. The element 16 has a substantially D-shaped form.
Patent GB-1208090-A (GB)
Title: Process for preparing a bicycle ketone
IPC: A23L27/20
Filed: 1969-09-25
Abstract: 1,208,090. Nootkatone. R. FIRMENICH, G. FIRMENICH, R. E. FIRMENICH, and F. H. FIRMENICH, [trading as FIRMENICH & CIE.]. 25 Sept., 1969 [25 Sept., 1968], No. 47344/69. Heading 2C2. Nootkatone, of the formula is prepared by hydrohalogenating nootkatene of the formula with a gaseous hydrogen halide and oxidizing the product. The preferred oxidizing agent is a mixture of chromic acid and aqueous sulphuric acid, but others are specified also. Examples are given.
Patent GB-1517369-A (GB)
Title: Chairs
IPC: A47C5/06
Filed: 1975-11-19
Abstract: 1517369 Chairs STAL & STIL AS 19 Nov 1975 [20 Nov 1974] 47676/75 Heading A4H A resilient chair shell 1, e.g. of yieldable material, has a seat member 2 and a back member 3 provided with downwardly and rearwardly projecting stiffening flanges 4, 5 at their side edges, the seat flanges 4 each having a front and rear notch 6, 7 for releasably receiving with a snap action attachment members on a rigid underframe, e.g. 4 steel tubes, and the flanges being outwardly inclined to permit stacking.
Patent GB-1279029-A (GB)
Title: Radar apparatus
Inventor: BOLLARD DAVID ROOKSBY
IPC: G01S13/60
Filed: 1969-10-09
Abstract: 1279029 Automatic voltage control PYE Ltd 8 Oct 1970 [9 Oct 1969] 47989/70 Heading G3R [Also in Division H4] In a Doppler radar (see Division H4) the reference voltage provided by Zener diode 18 is compared with the driving voltage across a Gunneffect device 10 by a long-tailed pair 16, 24 and the comparison controls a transistor 26. In an alternative arrangement, a Zener diode (156) Fig. 4 (not shown) is in the emitter circuit of a transistor (154), a pair of resistors are connected at their junction to the base of the transistor, and the device 10 is connected across the series combination of the resistors.
Patent GB-1237860-A (GB)
Title: Optical resolution of o-acetylpantolactone
IPC: C07D307/33
Filed: 1969-09-30
Abstract: 1,237,860. Resolution of O-acetylpantolactone. DAIICHI SEIYAKU CO. Ltd. 30 Sept., 1969 [30 Sept., 1968], No. 48071/69. Heading C2C. O-Acetylpantolactone is resolved into its D(-) and L( +) enantiomers by selectively seeding at a temperature below 13À5 C. a supercooled homogeneous liquid phase composed of a mixture of the said enantiomers in a binary system with optically active seed crystals of either isomer and then recovering the crystals of the same isomer that separate. The process may be effected in the presence of a small amount of one or more organic sovlents or aqueous solutions thereof not exceeding 35% by wt. of the total liquid phase, or the solvent may be added after crystallization to permit filtration. Subsequent hydrolysis with dilute mineral acid yields the corresponding optically active pantolactone.
Patent GB-1300937-A (GB)
Title: Fire-retardant thermoplastic composition
Inventor: MOORE ROBERT CHARLES
IPC: C08L95/00
Filed: 1969-09-30
Abstract: 1300937 Bituminous compositions RUBEROID Ltd 18 Sept 1970 [30 Sept 1969] 48081/69 Heading C3N [Also in Divisions B2 and D1] A composition comprises (i) a thermoplastic material which is either bitumen, pitch or asphalt, (ii) a halogen donor defined as a halogen-containing material which evolves halogen or hydrogen halide at a temperature above that normally used in the processing of compositions containing bitumen, pitch or asphalt which is substantially stable at said processing temperature and being either (a) one or more of perchloropentacyclodecane C 10 Cl 2  or compounds of similar structure of the formulµ C 10 Cl 10 O, C 10 Cl 4 F 8  and C 15 H 2 O 3 SCl 12 , (b) a chlorinated rubber, or (c) an alkylbenzene containing two or more chlorine and/or bromine atoms as nuclear substituents, e.g. pentabromotoluene, and (iii) a finely divided material more than 50 wt. per cent of which consists of aluminium iron silicates and/or ferric oxide. The finely divided material may be pulverized fuel ash or fly ash, a naturally occurring mineral containing more than 50 wt. per cent aluminium iron silicate or pure ferric oxide. The composition suitably contains per 100 parts by weight of the bitumen, pitch or asphalt, 1-50, advantageously 4-20, and preferably 4-10, parts by weight of halogen donor, and 1-100, preferably 15-50, parts by weight of the finely divided material. When ferric oxide is used without any aluminium iron silicate it is suitably used in an amount 6-20, preferably 8-15, parts by weight per 100 parts by weight of bitumen, pitch or asphalt.
Patent GB-1090614-A (GB)
Title: Device for the regulation of gas-turbine engines
Inventor: STEIEGLITZ ALBERT
IPC: F02C9/16
Filed: 1964-11-27
Abstract: 1,090,614. Automatic control of jet engines. SOCI•T• NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Nov. 27, 1964 [Nov. 29, 1963], No.48234/64. Heading G3R. [Also in Division F1] A system for automatically controlling a gas turbine in dependence on a particular function of the inlet and outlet pressures of its compressor, is further controlled by the temperature of hot gases downstream of the combustion chamber. In Fig. 3, pressures dependent on the inlet and outlet pressures P 1 , P 2  of the compressor of a turbo-jet engine 32 are applied to a pressure differential device 27 which controls a hydraulic system 30 adjusting the jet nozzle area to maintain the pressure differential constant. The pressure dependent on compressor outlet pressure is obtained after modification by three restriction orifices. One restriction 8 is preset, another 9 is adjustable by engine throttle lever 10, and a third 19 is adjusted by a servo-operated cam 21 in response to nozzle temperature as detected by a thermocouple 23. Adjustment of this third restriction serves to limit temperature or maintain it constant at a value which is adjustable by a potentiometer (not shown) coupled to the throttle lever. This potentiometer is arranged in a temperature-compensating bridge circuit 24 the output of which opposes that of the thermocouple. The resultant output is applied through a chopper amplifier 26 and has a rate component added by a resistance-capacity network. Rate feedback is applied from a tachometer generator (not shown) driven by electric servomotor 22. Resistors in bridge circuit 24 may be short-circuited by relays to permit temporary over-power operation. Alternative arrangements of restrictions for modifying pressure P 2  are described. The engine is provided with a centrifugally operated hydraulic speed governor, excessive hydraulic signals in which cause operation of a delayed switch to render the temperature control system inoperative by centring cam 21. The temperature control system may also be rendered inoperative manually by operation of a switch. Control of fuel to main and after-burner injectors, and propeller pitch control when the engine is incorporated in an aircraft, is also referred to.
Patent GB-1141975-A (GB)
Title: Improvements in and relating to catalytically active compositions
IPC: C08F4/58
Filed: 1967-10-24
Abstract: 1,141,975. Polyesterification. FIRESTONE TIRE & RUBBER CO. 24 Oct., 1967 [13 Feb., 1967], No. 48271/67. Heading C3R. A catalyst composition useful in preparing high M.W. linear polyesters comprises from 1 to 250 parts by wt. of (A) an amine terminated compound: H 2 N-R-NH 2  having M.W. of 100-1500 and capable of withstanding condensation temperatures of 250-350 C., R is a C 6 -C 100  bivalent organic radical, and (B) from 1 to 8 parts by wt. of a metal-containing polyesterification catalyst, e.g. Sb 2 O 3 . The radical R may contain nitrogen and especially suitable is an amino-terminated poly-(epsiloncaprolactam) having a degree of polymerization of 2 to 10 obtained by reacting ethylene diamine with caprolactam. A preferred concentration useful in polymerizing polyethylene terephthalate is from 0À005 to 0À25% by weight of (A) and from 0À00l to 0À008% of (B), based on the polymerizable mass.
Patent GB-1041109-A (GB)
Title: An embroidering machine
IPC: D05C11/18
Filed: 1964-11-27
Abstract: 1,041,109. Sewing machines. R. REICH. Nov. 27, 1964 [Nov. 27, 1963], No.48339/64. Heading D1G. An embroidery machine comprises a plurality of horizontal rows of needles arranged one above the other, and a plurality of shuttle guides, each of which extends transversely to said horizontal rows and is associated with a shuttle co-operating with a needle in each one of said rows. As shown, there are four horizontal rows of needles 2, each of which latter co-operates with a presser foot 3 and a shuttle 4. The shuttles are slidably arranged in inclined channel-section guide bars 8, each of which is associated with four shuttles, i.e. one shuttle in each horizontal row. The shuttles are reciprocated in the guides by pins 12. The shuttles in each guide bar are mounted on a holder 13, Fig. 1 not shown, connected to a common carrier bar 16 which receives vertical reciprocation.
Patent GB-1518958-A (GB)
Title: Firescreening glazing panels
IPC: C03C27/12
Filed: 1975-11-27
Abstract: 1518958 Glazing B F G GLASSGROUP 27 Nov 1975 [3 Dec 1974] 48859/75 Heading EIR [Also in Division B5] In fire-screening glazing panels comprising vitreous or vitrocrystalline plies having at least one intumescent layer therebetween, at least one ply is provided with an infra-red reflecting coating thereon that is isolated from the intumescent material. As shown in Fig. 1, vitreous plies 1, 5 and intumescent layers 2, 4 are provided on either side of a plastics interlayer 3, and the reflecting coating 10 is provided on a further vitreous ply 6. A coating may also be provided on the exposed face of ply 5, and a ply corresponding to 6 may be provided on the other side of the assembly 1-5.
Patent GB-1004234-A (GB)
Title: Tube reactors
Inventor: POEHLER GUENTER
IPC: C07C45/00
Filed: 1963-12-11
Abstract: <PICT:1004234/C4-C5/1> A catalytic dehydrogenation reactor, e.g. for dehydrogenating paraffins and naphthenes comprises a plurality of tubes each having a diameter of at least 70 mm. arranged in a reactor so as to leave a central free space and baffles arranged perpendicularly to the tubes and alternately at the reactor wall and in the central space to deflect a gaseous heating medium which is passed between the tubes in the same direction as reactants are passed through the tubes.  The ratio of diameter to length of the tubes may be 12-17 : 1000 with a diameter of 70-120 mm. and a length of 5-12 m.  The free space in the centre of the reactor may be 7-25% of the total cross-sectional area.  The baffles are alternate central circular baffles occupying 25-60% of the total cross-sectional area extending into the section containing tubes and outer annular baffles occupying 50-75% of the total area. The baffles, particularly in the tubed area, may have perforations, e.g. 3-10 mm. in diameter.  The tubes may be spaced 15-60 mm. from each other.  Heating medium is preferably introduced by an annular duct 2 surrounding the reactor. The medium is divided into two streams by a baffle 9 which flow in opposite directions round the reactor and enter the reactor through slots which increase in size in the direction of flow. The heating medium is withdrawn by a similar duct 5 and is reheated and re-used. The ducts 2 and 5 may have a cross-sectional area 5-20% that of the reactor.ALSO:<PICT:1004234/C2/1> A catalytic dehydrogenation reactor e.g. for converting alcohols to ketones comprises a plurality of tubes each having a diameter of at least 70 mm. arranged in a reactor so as to leave a central free space and baffles arranged perpendicularly to the tubes and alternately at the reactor wall and in the central space to deflect a gaseous heating medium which is passed between the tubes in the same direction as reactants are passed through the tubes.  The ratio of diameter to length of the tubes may be 12-17 : 1,000 with a diameter of 70-120 mm. and a length of 5-12 cm. The free space in the centre of the reactor may be 7-25% of the total cross sectional area.  In Fig. 1 the baffles 4 are alternate central circular baffles occupying 25-60% of the total cross-sectional area extending into the section containing tubes and outer annular baffles occupying 50-75% of the total area. The baffles, particularly in the tubed area, may have perforations, e.g. 3-10 mm. in diameter.  The tubes may be spaced 15-60 mm. from each other.  Heating medium is preferably introduced by an annular duct 2 surrounding the reactor.  The medium is divided into two streams by a baffle 9 which flow in opposite directions round the reactor and enter the reactor through slots which increase in size in the direction of flow. The heating medium is withdrawn by a similar duct 5 and is reheated and reused.  The ducts 2 and 5 may have a cross-sectional area 5-20% that of the reactor.  In examples cyclohexanol is converted to cyclohexanone and sec.-butanol to methyl ethyl ketone.
Patent GB-1095757-A (GB)
Title: Improvements in fuel injection pumps
IPC: F01M1/12
Filed: 1964-12-03
Abstract: 1,095,757. Fuel injection pumps. SOCIETE INDUSTRIELLE GENERALE DE MECANIQUE APPLIQUEE. Dec. 3, 1964 [Dec. 4, 1963], No.49233/64. Heading G1A. In the fuel injection pump shown in Fig. 1, a shaft 4, driven by an I.C. engine (not shown), is formed with a disc 4a which carries a cam-ring 7, the lobes of which operate main pump pistons 5, Fig. 3, through rollers 11 and push pieces 12 against return springs 13. From an inlet 18, fuel is fed to the main pump by an auxiliary pump 17 through a pipe 19, inlet 21 and an annular groove 22 formed between fixed members 1a and 1b of the main pump body. The groove 22 communicates through radial holes 23, the number of which equals the number of cylinders of the I. C. engine, with the bore in which rotates a distributing valve 2 formed with suction and delivery ports 24 and 26 respectively, having oppositely inclined portions 24a and 26a which communicate with an annular groove 25 provided in the valve 2 and in communication with the main pump cylinders 6. Delivery from the main pump is effected through passages 8 and 9 via check valves 10. Excess fuel delivered by the auxiliary pump is discharged from the groove 22 through a valve, Fig. 2 (not shown), to a tank or the fuel inlet 18. Since the inclined portions 26a, 24a determine respectively the beginning and end of the periods of injection to any one cylinder of the I. C. engine, and since these portions are oppositely inclined, the main pump delivery may be regulated by axial movement of the valve 2. Similarly, variation of the angular position of the valve 2 with respect to the shaft 4 regulates the timing of injection. Both these regulations are effected by a governor comprising two masses 30 pivoted about pins 31 in a flange 32 of the shaft 4. Radially outward movement of the masses 30 results in a push piece 33 moving a member 27 to the right against a spring 28. The member 27 is splined to the shaft 4 and is slidably secured to the valve 2 by a pin 29 engaging a helical slot in the valve. Axial movement of the member 27 therefore effects advance and retard regulation. However, axial movement of the valve 2 is opposed by resilient means arranged to yield after the spring 28, and comprising springs 34 acting on the valve 2 through a lever 39 provided with a resilient plate 38. The compression of the springs 34 is varied by a lever 36 acting on a cup 35 in dependence upon the setting of the I. C. engine throttle valve. Lubricant from inlet 45 is fed by a pump 43, similar to the auxiliary pump 17 and separated therefrom by seals 44, through a port 46 to the interior of the fuel injection pump casing, excess oil being discharged through a valve 47.
Patent GB-979857-A (GB)
Title: Improvements in or relating to gramophone pick-ups and stylus assemblies therefor
IPC: H04R11/08
Filed: 1959-11-20
Abstract: 979, 857. Gramophone styli; interchangeable mountings. J. WALTON. Feb. 20, 1961 [Nov. 20, 1959], No. 49289/63. Divided out of 979, 856. Drawings to Specification. Heading G5R. [Also in Division H4] The subject-matter of this Specification is divided out of that described in Specification 979, 856. Specifications 979,858, 979,859 and 979,860 also are referred to.
Patent GB-1355404-A (GB)
Title: Aqueous polymide compositions
IPC: C08L63/00
Filed: 1971-10-22
Abstract: 1355404 Glass fibre laminates RHONEPOULENC SA 22 Oct 1971 [23 Oct 1970 24 June 1971] 49315/71 Heading B5N [Also in Division C3] A composition comprises a thixotropic suspension of (a) a prepolymer reaction product of an unsaturated bis-imide where D is an unsaturated divalent radical and A a C 2-30  divalent radical with a polyamine having at least 2 primary NH 2  groups in proportions of 0À55 to 25 mols bis-imide per mol of NH 2  group, suspended in (b) water which may be mixed with up to an equal weight of an organic solvent boiling between 110 and 270‹ C. To prepare the composition the prepolymer should have a particle size preferably less than 100 Á. The compositions may be used to form pre-pregs of fibrous materials which may be laminated. The pre-preg may be dried at 100 to 200‹ C., stored at 30‹ C. or below and shaped and cured at up to 350‹ C. Examples illustrate various glass fabric laminates. Reference is made to Specifications 1,355,403, 1,190,718 and 1,137,592.
Patent GB-1400269-A (GB)
Title: Hay making machine
IPC: A01D78/12
Filed: 1972-10-26
Abstract: 1400269 Hay making machines MASCHINENFABRIK FAHR AG 26 Oct 1972 [23 Dec 1971] 49343/72 Heading A1F A hay making machine has a rake head 1 which rotates about a fixed hollow axle 3 and a cam disc 17 which is slidably mounted on the axle 3 and is moved axially therealong by a screw threaded spindle 18 between a position for swathing in which it is engaged by rollers 16 of control levers 14 connected to radially extending tined arms 11 and so causes the arms to oscillate about their longitudinal axes between raking and release positions as the head rotates and a position for tedding in which it is disengaged from the roller 16 so that the tines 12 extend downwardly. In the swathing position, the rollers 16 are biased against the cam disc 17 by respective torsion springs 13 which are contained in respective bearings 10 for the arms 11 and in the tedding position, these springs urge the other end 15 of the control levers 14 against stops 15 connected to a rim 9 of the rake head. The lower end of the threaded spindle 18 engages a nut 20 having lateral bolts 21 which pass through longitudinal slots 22 in the tubular wall of the axle 3 and are connected to a hub 24 which in a preferred construction is integral with the cam 17. A disc 25 is rigidly fixed to the axle 3 and the hub 24 carries an arm 27 with a ground roller 28. In a modification (not shown) the hub 24 and cam disc 17 are two separate parts and a compression spring, surrounding the axle 3, is placed between the disc 25 and the cam disc 17 to urge the disc 17 against the hub 24. The rake head 1 is connected to a sleeve 8 having a bevel gear 29 which engages a pinion on a drive shaft. The hay making machine may have one or a plurality of such rake heads and, in the case of a number of rake heads, adjacent pairs may be rotated in the same or opposite direction.  Reference has been directed by the comptroller to Specifications 1238528 and 1174420.
Patent GB-1135790-A (GB)
Title: Dynamoelectric machine cooling
IPC: H02K9/06
Filed: 1966-11-04
Abstract: 1,135,790. Cooling dynamo-electric machines. GENERAL ELECTRIC CO. 4 Nov., 1966 [9 Nov., 1965], No. 49526/66. Heading H2A. A dynamo-electric machine is cooled by air blown axially along the external casing of the machine by a rotor mounted fan with a subsidiary circulation of part of this main air flow around the end windings. The machine includes a conventional stator 4 having windings 5, 6 housed within a casing 1 provided with axial fins 30, and a squirrel-cage rotor 7 having end rings 9, 10 which are extended to form impellers 31. The rotor shaft is mounted in a bearing located in spider 2 which has radial ribs extending to an outer ring 13 which is secured to a ring 15 by legs 16. A fan 21 is mounted on the rotor shaft and draws air through the space between ring 13 and the hub and expels it between rings 13 and 15 where baffle 28 directs the flow in an axial direction. Ring 15 extends into the plane of the fan and directs part of the air flow through gap 26 into the end winding cavity. The diverted air is exhausted through orifice 25 in the fan to mix with the main cooling air flow again. The drive end of the machine which is shown totally enclosed is cooled by heat transfer along the rotor conductors, or alternatively a similar fan construction may be used.