baber/WOPTO huggingface dataset:
Patent GB-399042-A (GB)
Title: Improvements in and relating to electric protective systems
IPC: H02H3/16
Filed: 1932-11-30
Abstract: 399,042. Protective cut - out arrangements. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts- Ges.; 2, Friedrich Karl-Ufer, Berlin). Nov. 30, 1932, No. 33927. Convention date, Nov. 30, 1931. [Class 38 (v).] In a protective arrangement in which the fault current is momentarily increased for the purpose of disconnecting the fault, a vapour discharge device has its anode circuit connected in the circuit of the fault current operating a protective device, and its grid so controlled by the fault current as to produce a momentary increase of anode current whereby the protective device operates. As applied to earth-leakage protection, Fig. 1, by means of a relay 11, preferably of the selective distance type, the neutral 1 of the network is earthed through a resistance 3, part or all of which is shunted by the anode circuit of a vapour discharge device 4, having its grid connected to the - pole of a battery 7 through a switch 6 controlled by a sensitive relay 8 in the earth lead. An earth fault, which may not be large enough to operate relay 11, energizes the relay 8 and causes the switch 6 momentarily to remove the - bias from the grid and apply a + bias thereto through the high resistance 9. The device 4 thereupon becomes. conducting and short-circuits part of resistance 3 so that the resulting fault current increase causes the relay 11 to respond. The switch 6 may have more than two contacts so that there may be applied more than one current increase, with predetermined intervals between them, and the relay 11 mav in this case have a switch working synchronously with the switch 6, for cutting resistance in steps into the potential-coil circuits of relay 11 for changing its operating value, Fig. 2 (not shown). In Fig. 3, the passage of the anode current in the device 5 is arranged to produce a momentary variation of the neutral point potential. For this purpose the neutral 1 is connected to the mid point n<0> of an inductance having one end connected to the line R and the other n<2> earthed through a resistance 15 and the device 5. A further point n<1> is earthed through a resistance 17 such that the potential between n<0> and n<1> amounts to about 10 per cent of the phase potential. When a small earth leakage occurs, the current flowing through the circuit of resistance 17 renders the device 5 momentarily conductive (as in Fig. 1) and connects the point n<2> with earth through resistance 15. The transient displacement produced is preferably arranged to be about 50 per cent of the phase potential. The Specification refers also to the connection of a discharge device between two conductors of a network to guard against overheated bearings of electrical machinery supplying that network. The Specification as open to inspection under Sect. 91 refers also to protection against excessive bearing temperature in electric machines. This subject-matter does.not appear in the Specification as accepted.
Patent GB-211627-A (GB)
Title: Improvements connected with emergency doors of motor buses and like vehicles
IPC: B60J9/02
Filed: 1922-12-13
Abstract: 211,627. Brown, J. W. Dec. 13, 1922. Seats and seat backs, arrangement and disposition of.-In a motor bus or like vehicle having an outwardly swinging emergency door carrying a tip-up seat and provided with a fastening operated from the tip-up seat, the operating mechanism comprises an arm i fixed to the tip-up seat f and connected by a link j to one end of a right-angled lever l pivoted at k, the other end of the lever operating a bolt m to lock the door when the seat is down. The lock operating mechanism is concealed within the lining of the door. A visible hand operated catch q is also provided.
Patent GB-1476632-A (GB)
Title: Steam generating plant
IPC: G21C1/00
Filed: 1973-07-17
Abstract: 1476632 Nuclear reactor steam generating plant FOSTER WHEELER POWER PRODUCTS Ltd 17 July 1974 [17 July 1973] 34100/73 Heading F4A [Also in Division G6] In a nuclear reactor in which a reactor core 8 is arranged within a shell 14 and a pumping apparatus 13 circulates cooling fluid from the core to an annular space 12, at least one serpentine bundle 16 of steam generating tubes is arranged within the space 12 consisting of a number of horizontal sections 18 joined by bends 20 and extending between water inlet and steam outlet headers 26, 22; the tubes in each bundle being arranged to be substantially the same length from header to header. Each tube bundle is arranged to follow the curve of the annular space and is separated from adjacent bundles by sheet metal spacing members 32. Metal plates 28 are secured to the bundles to define flow paths for the coolant fluid and carry horizontal corrugated members which support the tubes. The tubes are generally arranged so that the radially innermost tubes extend further around the annular space but an outermost section 46 of each bundle has a greater annular extent than the other tubes to compensate for that section's reduced height necessitated by the tapering of the outer shell wall.
Patent GB-1031541-A (GB)
Title: New process for the manufacture of yohimbane compounds
Filed: 1963-08-28
Abstract: 17a  - Hydroxy - 18b  - RO - 20a  - yohimbane-16b -carboxylic acid esters, in which R represents the acyl group of an at least disubstituted benzoic acid, or N-oxides thereof or salts of these compounds are prepared by reacting a 17a , 18b  - dihydroxy - 20a  - yohimbane - 16b -carboxylic acid ester or an N-oxide or salt thereof with a reactive functional derivative, e.g. a halide or anhydride, of a benzoic acid that contains at least 2 substituents, and, if desired, a resulting compound is N-oxidized to form an N-oxide or a resulting N-oxide is reduced and/or a resulting salt is converted into the free base or a free base is converted into a salt.
Patent GB-781833-A (GB)
Title: Cyclopentanophenanthrene derivatives
Filed: 1955-11-29
Abstract: The invention comprises 1-methyl-19-nor-D 4 - pregnene - 3,20 - dione, 1 - methyl - 19 - nor - D 4 - pregnen - 20 - ol - 3 - one, and their preparation from a 1-methyl-3-alkoxy-17b -acetyl - 1,3,5(10) - estratriene (a) by formation of a ketal with ethylene glycol, reduction of this ketal with an alkali metal in liquid ammonia followed by hydrolysis and rearrangement in acid media of the 20-ketal of 1-methyl-3-alkoxy-19 - nor - D 2,5(10) - pregnadien - 20 - one, and (b) by reduction with an alkali metal in liquid ammonia followed by hydrolysis and rearrangement in acid media of the 1-methyl-3-alkoxy-19-nor-D 2,5(10)-pregnadien-20-ol to give 1-methyl-19 - nor - D 4 - pregnen - 20 - ol - 3 - one and then oxidation to the corresponding 3,20-dione.  In examples: (1) 1-methyl-3-methoxy-17b -acetyl - 1,3,5(10) - estratriene (obtained by alkylation of the 3-hydroxy compound with dimethyl sulphate and KOH) is refluxed in benzene with p-toluene sulphonic acid and ethylene glycol and the resulting 20-ethylene ketal reduced with lithium in liquid ammonia to the ketal of 1-methyl-3-methoxy-19-nor-D 2,5(10) - pregnadien - 20 - one, which on standing with p-toluene sulphonic acid in acetone yields 1-methyl-19-nor-D 4-pregnene-3,20-dione; (2) 1-methyl-3-methoxy-17b -acetyl-1,3,5(10)-estratriene is reduced with lithium in liquid ammonia and hydrolysed with p-toluene sulphonic acid to 1-methyl-19-nor-D 4-pregnen-20-ol-30-one, which is oxidized with chromic acid in glacial acetic acid to 1-methyl-19-nor-D 4-pregnene-3,20-dione.
Patent GB-398062-A (GB)
Title: Method of and means for removing the ash from the collecting hoppers below the fluesof boiler plants and other ash collecting devices
IPC: F23J1/02
Filed: 1932-12-03
Abstract: 398,062. Feeding-devices for granular &c. materials. ROTHSTEIN, A., 60, Kaiserstrasse, Leipsic, Germany. Dec. 3, 1932, No. 34302. Convention date, July 2. [Class 59.] Apparatus for removing ashes from the collecting hoppers 2 of boiler furnaces or other apparatus comprises a chamber 3 delivering on to a horizontal supporting surface 4 which forms the lower wall of a lateral outlet 6, this outlet being connected to an elbow pipe 7, 8, 10 in the bend 9 of which a water trap or seal is maintained by a jet 12. A Venturi 11 is fitted in the discharge limb of the bend 9. Fig. 1 shows the apparatus before discharge of the accumulated ash commences ; when discharge is to be effected, the jet 12 is turned on and owing to the production of a vacuum in the conduit 6, 7, 8 the ash is caused, as shown in Fig. 2, to move outwardly over the bend 13 and be forced out through the discharge pipe 10. The height of the inwardly projecting wall 14 of the chamber 3 is adjustable to enable different kinds of ash to be dealt with.
Patent GB-1133677-A (GB)
Title: Compressor piston
IPC: F04B39/04
Filed: 1967-07-26
Abstract: 1,133,677. Piston rings. RUHRGAS A.G. 26 July, 1967 [27 July, 1966], No. 34375/67. Heading F2T. Packing for a compressor piston comprises rings 4 of plastics material (e.g. split rings of P.T.F.E.) which are received in inclined grooves and urged by fluid pressure into sealing contact with the cylinder wall or rod, the tangential component T1 of the force P1 being greater than the tangential component T of the force P.
Patent GB-302802-A (GB)
Title: Improvements in or relating to joints for cylinder covers of internal combustion engines
IPC: F02F11/00
Filed: 1927-12-19
Abstract: 302,802. Richardsons, Westgarth, & Co., Ltd., and Burn, W. S. Dec. 19, 1927. Joint-making packing.- Packing for the joint between the liner 1 and the cover 3 of the cylinder of an internalcombustion engine comprises a bevelled lead or other ring or rings 4 acted on by a spring-pressed ring 7. Specification 249,188, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], is ferred to.
Patent GB-828089-A (GB)
Title: Improvements in or relating to apparatus for investigating materials
IPC: G01V5/10
Filed: 1956-11-09
Abstract: 828,089. Nuclear reactors. SCHLUMBERGER WELL SURVEYING CORPORATION. Nov. 9, 1956 [Nov. 9, 1955], No. 34407/56. Drawings to Specification. Class 39(4). The nature of the earth formation in a borehole is investigated by lowering a nuclear reactor down the borehole and observing the changes in the reactivity. The reactor is constructed with fixed upper and lower neutron reflectors and lateral reflecting surfaces are provided by the earth formations at the borehole sides. As the characteristics of the latter alter with change of the position of the reactor in the borehole, the activity of the reactor alters and is measured by a neutron detector in the reflector. The detector controls the positioning of a moderator, in the form of a continuous steel tape, having a variable density cadmium coating and mounted movably longitudinally round the reactor so as to maintain the neutron flux at a predetermined level. The position of the strip corresponds with the neutron reflectivity of the borehole material. Temperature changes in the borehole may be automatically compensated for by movement of the tape. The main container of the reactor is of stainless steel, the upper and lower reflectors of beryllium and the fuel a solution of uraryl sulphate in water. To prevent large variations of neutron flux at starting, a small radium, beryllium neutron source is located in the lower reflector.
Patent GB-906747-A (GB)
Title: Method of bonding aluminium and steel
IPC: B23K20/04
Filed: 1960-10-07
Abstract: 906,747. Making composite sheet; jointing by rolling. FEDERAL-MOGUL-BOWER BEARINGS Inc. Oct. 7, 1960 [Oct. 23, 1959], No. 34423/60. Classes 83 (2) and 83 (4). In a method of bonding composite bearing strips of aluminium alloy and steel sheet, the strips 12, 14, Fig. 1, are passed through a pair of pressure rolls 22, 24 having substantially different diameters, the smaller diameter roll 24 engaging the aluminium strip with sufficient pressure to effect at least a 40% reduction in the aluminium and the larger diameter roll 22 engaging the steel at a low unit pressure causing the minimum reduction in the steel. In examples in which the larger diameter roll is at least twice and preferably five times the diameter the smaller roll the reduction of the aluminium may reach 75% while that of the steel is less than 3%. The strips may be heated to 950 F. in a furnace 10 containing a protective gas which emerges with the strips through a snout 15 and is ignited by burners 21 adjacent the roll pass so that the strips are protected during the rolling process. The roll assembly may further be heated to temperatures between 200 F. and 600 F. by heaters 17. In applying strips of aluminium alloy having a high tin content of 15-30% the strips are preferably pre-heated to only 450 F. and the steel protected by a thin coating of nickel, silver, copper or pure aluminium. With lower tin contents of 7% a higher preheat temperature of 800 F. may be used. The smaller roll 24 may be backed by larger roll 26 or in a modification may be backed by a pair of rolls 34, Fig. 3, arranged on opposite sides.
Patent GB-1093615-A (GB)
Title: Disc brakes
Inventor: BUTLER HENRY JAMES
IPC: F16D55/2265
Filed: 1963-08-31
Abstract: 1,093,615. Disc brakes. DUNLOP RUBBER CO. Ltd. Aug. 24, 1964 [Aug. 31, 1963; March 17, 1964], Nos. 34455/64 and 11131/64. Heading F2E. In a disc brake comprising a rotatable disc 1 and a non-rotatable caliper-type housing 2 which has a pair of limbs 3 and 4 straddling a portion of the outer periphery of the brake disc and a bridging portion 5 extending axially adjacent the outer periphery of the disc, a pair of friction elements 14, 15 is associated with the housing one on each side of the disc at least one of the friction elements comprising a backing plate 19 having a pair of ears 17, 18 which engage one on each side of the bridging portion of the housing to form part of means for retaining the latter friction element against movement relative to the housing in a circumferential direction. As shown in Fig. 2 the friction element 14 associated with the limb 3 of the caliper housing 2 is also provided with a backing plate 23 having ears 24, 25 at its radially outer end to engage one on each side of the bridging portion 5 of the housing. In operation, when the brake applying mechanism 16 is actuated the friction element 15 associated with the limb 4 of the caliper 2 is forced into frictional engagement with the brake disc the reaction on the caliper 2 thereby forcing the friction element 14 associated with the limb 3 of the caliper against the opposite surface of the brake disc. The caliper housing is mounted on a pin 6 which is slidable in bearings 7, 8 to permit the housing to move axially. The backing plate 19 of the friction element 15 is provided with bifurcations 20, 21 (Fig. 3) extending one on each side of the pin and a pin 22 is secured across the bifurcations to prevent radially inward movement of the backing plate 19 and consequent disengagement of the ears 17, 18 from the bridging portion 5 of the caliper 2. Rotational movement of the caliper housing about the axis of the pin 6 is prevented by the engagement of feet 10, 11 formed on the housing with shoulders 12, 13 formed respectively on the non-rotatable component of the brake.
Patent GB-1032682-A (GB)
Title: Improvements relating to radar
Inventor: HERSCH WOLFGANG
IPC: H01Q3/42
Filed: 1961-09-26
Abstract: 1,032,682. Radar transmitters; aerials. ELECTRIC & MUSICAL INDUSTRIES Ltd. Sept. 26, 1962 [Sept. 26, 1961], No. 34542/61. Headings H4A and H4D. In a radar system wherein the direction of a narrow bearing produced by an aerial array is varied electrically without physical movement of the array, a transmitter comprises a first source of R./F. energy, a second source of R./F. energy, a first mixing circuit for combining energy from both of said sources, delaying means, means for applying energy from said second source to the delaying means, and a second mixing circuit receiving the combined energy from the first mixing circuit and the energy from the second source delayed by the delaying means, and arranged to produce an output signal having the same frequency as the energy from the first source, with a phase dependent on the frequency of the energy from the second source and the delay imposed by the delaying means on the energy from the second source. The invention is described as applied to a five column array of antenna having individual feeding klystrons 16, 17, 18, 19 and 20 working at a frequency ft, wherein by providing equal phase differences between the signals feeding adjacent columns, a narrow beam can be produced, steerable in azimuth, by varying the phase differences. Energy at a frequency ft, produced by oscillator 1, is mixed in first mixer 2 with energy at a frequency fc, produced by oscillator 3. The sum frequency component is selected from the mixer's output by filter 5 and passed to five second mixers 6, 7, 8, 9 and 10. The energy from oscillator 3 is also passed through a delay line 4, provided with five equally spaced tapping points feeding the five second mixers 6, 7, 8, 9 and 10 with signals having a frequency fc but with phases differing by equal amounts between adjacent tapping points. The difference frequency components, at a frequency ft are selected from the outputs of the second mixers by filters 11, 12, 13, 14 and 15 with the same relative phase differences as the signals from the tapping points and are fed to the respective klystron amplifiers 16, 17, 18, 19 and 20 for energizing the respective array columns. The phase differences induced by the delay line and therefore the phase differences between the signals energizing the array columns can be varied by varying the frequency fc of the energy produced by the oscillator 3. The beam may be scanned in elevation by varying the frequency ft of the energy produced by the oscillator 1, with corresponding adjustment of filters 11, 12, 13, 14 and 15. The above described transmitter may be used with the receiving system described in Specification 28321/61.
Patent GB-850830-A (GB)
Title: Improvements in fastenings for doors
Inventor: ROBERTSON ROBERT
IPC: E05B65/08
Filed: 1957-11-06
Abstract: 850,830. Catch fastenings. HALLAM, SLEIGH & CHESTON Ltd. Nov. 6, 1958 [Nov. 6, 1957], No. 34554/57. Class 44. In a door fastening of the kind comprising two pivoted catch arms 3, 4 movable outwards about their pivots 6 in opposite directions by spring means 8, the outer ends of the arms terminating in hook catch parts 5 which during the action of closing the door are moved inwards towards one another by co-operating striker means and snap behind the latter to hold the door closed, key operated means are provided for positively holding the pivoted catch arms in their outwardly pressed door fastening positions the said key operated means comprising a rotary stop part 16 disposed between the arms and adapted to be turned by the key to bring it into a position to prevent the arms from moving back towards one another from their door fastening positions sufficiently to allow of the opening of the door. The rotary stop part 16 is fixed by screws 15 to the rotary barrel of a lock 14 so as to turn with the barrel. The stop part has a pair of radial arms 19 the ends 19a of which are bent back at right angles so that when the stop part is in one position the ends 19a engage notches 13 in the inner edges of the arms 3, 4 so that the arms cannot move towards their unfastening positions. Mounted on an axis concentric with that of the stop part 16 is a plate 20 which is formed at opposite side edges with shouldered parts 22 which can be engaged by the ends 19a of the arms 19 of the stop part when this is turned in the opposite direction to that which locks the arms 3, 4 in the fastened position; this engagement of the ends 19a with the plate 20 turns the plate and pins 21 on the plate co-operate with inclined cam surfaces 12 on the arms 3, 4 to move the latter inwardly about their pivots 6 into their door releasing positions. The stop part 16 can also be turned by the key into a neutral intermediate position in which the arms 3, 4 are free to move inwards against the action of the spring 8 during the closing of the door and also to return to their fastening positions. To enable the door to be unfastened without the use of the key, provided the catch arms 3, 4 have first been released by the key so that they are free to move inwards against the action of spring 8, a slidable wedge 24 can be provided which engages extensions 25 of the arms and which when it is slid laterally by means of handles connected to a spindle 33 causes the extensions 25 of the arms to move apart and hence the parts 5 to move inwardly to release the fastening. In a modification a rotary cam can be provided for moving the extensions apart instead of a sliding wedge. The mechanism can be modified so that the key serves only to lock the arms in their fastening positions, the release being effected by the handles moving the wedge or cam.
Patent GB-176503-A (GB)
Title: Improvements in increasing the efficiency of dynamos or motors
IPC: H02K23/66
Filed: 1920-12-07
Abstract: 176,503. Tatham, G. H., and Bryan, F. P. Dec. 7, 1920. Casings; dynamos and motors, cooling; enveloping in special media.-Dynamos and motors are run in casings filled with oxygen or ozone at or above or below atmospheric pressure whereby their efficiency is increased, owing to the magnetic properties of the gas, and sparking at the commutator is reduced. The machine casing is made with fluid-tight joints and stuffing-boxes for the shaft ends and is provided with a pressure gauge, inspection openings, and valve-controlled inlet and outlet openings for the admission of oxygen or ozone and the escape of the originally-contained air. In the case of large machines, cooling apparatus may be connected to the casing throngh which the oxygen or ozone is circulated by a pump.
Patent GB-1498484-A (GB)
Title: Cap for writing instrument
IPC: B43K23/12
Filed: 1975-08-20
Abstract: 1498484 Cap for writing instrument ST DUPONT SA 20 Aug 1975 [20 Aug 1974] 34648/75 Heading B6P A cap 5 which can be placed either over the nib of a pen or on its rear end 4 consists of an outer body and an inner sleeve 9 rotatably mounted within the outer body by a ring 8 engaged in an annular groove 7 in the wall of the body. The sleeve 9 is of a material softer than the outer body, and has a section towards the mouth of the outer body with resilient fingers separated by slots 12.
Patent GB-1437308-A (GB)
Title: Tobacco substitute
IPC: A24B15/16
Filed: 1974-08-07
Abstract: 1437308 Tobacco substitutes OLIN CORP 7 Aug 1974 [10 Sept 1973] 34822/74 Heading A2C [Also in Division C3] A tobacco substitute consists of shredded, combustible paper sheet of cellulose fibres and finely pulverised carbon filler, the cellulose fibres constituting a sufficient amount of the weight of the sheet to enable sheet formation and handling during conventional paper making operations, the sheet containing at least 55% by weight of carbon filler based on the weight of the cellulose fibres therein and the substitute being further characterised by an acrolein/tar ratio of 3.18 x 10<SP>-3</SP>, an organoleptic effect similar to natural tobacco smoke and when blended with tobacco and smoked, reduces the total particulate matter and vapour phase yields to an extent greater than that expected from substitution of tobacco by an inert filler in equivalent amounts. The paper sheet may contain from 55 to 250% carbon and additionally an inert filler selected from alkaline earth metal carbonates or oxides e.g. CaCO 3 . Examples describe the preparation of cellulose flax fibrous sheets containing varying amounts of filler and smoking products containing such substitutes.