baber/WOPTO huggingface dataset:
Patent GB-883162-A (GB)
Title: Static exciter regulator systems for alternating current generators
IPC: H02P9/10
Filed: 1960-06-08
Abstract: 883,162. Alternators; automatic voltage control systems. SIEGLER CORPORATION. June 8, 1960 [June 12, 1959], No. 20111/60. Classes 35 and 38 (4). An exciter system for an alternator is regulated to prevent excessive excitation in the event of a fault. Generator 10 has a field winding 11 excited by an exciter system comprising a current portion 18 supplying most of the excitation, and a voltage section 19 sufficient to provide no-load excitation and on-load regulation under normal conditions. Voltage section 19 includes zener diodes 29, 30 in the emitter-base circuit of a transistor 31 so that when the voltage across resistor 26, which depends on the output voltage of the alternator, exceeds a certain value the zener diodes conduct, causing transistor 31 to conduct so that current flows in the control windings of magnetic amplifiers 34, reducing the current in the output windings, and hence the excitation current flowing in conductor 37. Current section 18 comprises current transformers 40 connected through rectifier 43 to conductor 37, and the secondary winding of each current transformeris shunted by back-to-back pairs of silicon controlled rectifiers 45, 46, having resistors 51 in series. The control electrodes of rectifiers 45, 46 are connected to individual secondary windings of a pulse transformer 62. A D.C. transformer 64 has a primary winding in conductor 37 and a secondary winding 65 energized with A.C. from a permanent magnet generator or other source. If the current in conductor 37 exceeds a predetermined value, the impedance of secondary winding 65 becomes sufficiently low so that the voltage across a resistor 68 exceeds the breakdown voltage of a zener diode 72, causing current to flow in the primary winding of pulse transformer 62. This renders rectifiers 45, 46 conducting, shunting current transformers 40 so that the excitation current supplied to field winding 11 is reduced.
Patent GB-1111047-A (GB)
Title: Viscosity pump for cooling face seals
IPC: F16J15/36
Filed: 1965-05-12
Abstract: 1,111,047. Mechanical seals. FLYGTS PUMPAR A.G. 12 May, 1965 [15 May, 1964], No. 20113/65. Heading F2B. [Also in Division F1] In a motor driven centrifugal pump comprising an impeller 4 driven by a vertical shaft 1, leakage of pumped liquid into the motor unit is prevented by means comprising an oil chamber 17 located between the motor housing and the pump housing and a pair of face seals including sealing rings 31, 34 sealingly engaging opposite faces of a slip ring 15 which is provided with at least one channel 19, 20 extending between the chamber 17 and the shaft whereby in use the ring 15 co-operates with the shaft, or bushings 38, 39 thereon, to act as a viscosity pump circulating the oil to cool the face seals. The slip-ring 15 has two tangential channels 19 and 20 therein and is located in a holder 13 being sealed thereto and to the bottom 14 of the motor housing by sealing-rings 16 and 28 respectively. The rings 31 and 34 are carried by rubber sleeves 30 and 35 and urged against the slip-ring 15 by springs 29 and 36 respectively. The bottom of the oil chamber 17 is formed by a rubber diaphragm 25 and the oil is pressurized by pumped liquid supplied through an opening 24 in the pump housing.
Patent GB-1384431-A (GB)
Title: Spraying equipment for high-density dispersions
IPC: E04F21/12
Filed: 1972-05-01
Abstract: 1384431 Spray producers TIRAMA AG 1 May 1972 [30 April 1971] 20116/72 Heading B2F [Also in Divisions F1 and F2] In equipment for spraying high density dispersions, the material is supplied to the spray nozzle 40, Fig. 5, from an outlet 33, Fig. 1, of a container 1 which is pressurised by a compressor 29 through a line (22), Fig. 2 (not shown), air at a lower pressure being supplied to an axially adjustable nozzle 41 by a blower 30. The dispersion supply pipe 33 converges at 37 to form a passage 36 the flow through which is controllable by a valve 38.
Patent GB-354511-A (GB)
Title: Improvements in spindles for ring spinning and doubling frames
IPC: D01H7/16
Filed: 1930-07-03
Abstract: 354,511. Mounting bobbins &c. on spinning spindles. BROOKS & DOXEY (1920), Ltd. and WARD, S., Union Iron Works, West Gorton, Manchester. July 3, 1930, No. 20144. [Class 120 (ii).] In means for coupling bobbins to spindles, the centrifugal clutch members D are prevented from rotating on the spindle A by means of radial arms e formed on a separate bush E which is secured to the spindle, the radial arms passing between and separating the clutch elements. The lower ends of the clutch elements may terminate in pins or projections, which engage holes or recesses formed in the upper face of the wharve B. The upper ends of the clutch elements bear on the spindle, and their outward movement is limited by the cap C.
Patent GB-454640-A (GB)
Title: Change-speed mechanism
IPC: F16D41/00
Filed: 1935-04-03
Abstract: 454,640. Variable - speed mechanism. ANDERSON, H. P. H., 19, Radcliff Road, South Kensington, London, and HENDERSON, A., 25, Chiltern Road, Sutton, Surrey. April 3, 1935, No. 20174/36. Divided out of 454,444. Drawings to Specification. [Class 80 (ii)] The ratchet mechanism described in Specification 454,444 as applied to a variable-speed epicyclic bevel gearing is described and claimed for use in change-speed mechanism generally in this Specification.
Patent GB-1034909-A (GB)
Title: Photographic flash device
IPC: G03B15/04
Filed: 1965-05-13
Abstract: 1,034,909. Photographic flash apparatus. EASTMAN KODAK CO. May 13,1965 [May 13, 1964],No.20194/65. Heading G2A. A photographic flash device for use with a flashlamp unit having a plurality of flash lamps with individual reflectors 7 Fig 1 (not shown) has a block 43 Fig. 3 on which the unit is mounted for rotation to bring each flash lamp into firing position in which the lamp in such position engages terminal means included in a flash circuit. The block 43 is rotated by a hook 48 engaging one of several pins 50. The hook 48 is actuated through shutter actuating lever 4 rocked by tab 24 of film advance lever 2. An arresting mechanism 66 prevents further rotation of the block 43 upon actuation of lever 2 until shutter actuating lever 4 is released to permit hook 48 to reengage a pin 50.
Patent GB-982076-A (GB)
Title: 2-halosteroids of the androstane series
IPC: C07J75/00
Filed: 1961-06-05
Abstract: The invention comprises steroids of the general formula <FORM:0982076/C2/1> wherein R represents hydrogen or an alkanoyl radical containing 2 to 6 carbon atoms, X represents fluorine, chlorine or iodine, and Z represents C = O or <FORM:0982076/C2/2> R1 being hydrogen or alkanoyl of the above significance, and Y being hydrogen or an alkynyl radical containing 2 to 6 carbon atoms or an alkyl radical containing 1 to 6 carbon atoms. The steroids are prepared by heating 3b -p-toluenesulphonyloxy - 5a  - androstan - 17 - one in a high boiling solvent such as collidine to form 5a  - androsten - 2 - en - 17 - one, treating this compound with perbenzoic acid to form 2a , 3a -epoxy-5a -androstan-17-one, and treating this compound with the required hydrogen halide to form the 2b -halo-3a -hydroxy-17-one compounds of the above formula.  The compounds of the above formula containing a 17-keto group may be reduced with sodium borohydride to form the 17b -hydroxy compounds of the above formula. The 17a -alkyl-17a -hydroxy compounds of the above formula are prepared by treating 5a -androst-2-en-17-one with an alkyl magnesium bromide or a 1-alkyne to form 17a -alkyl (or alkynyl)-androst-2-en-17b -ol, treating this compound with perbenzoic acid to form the corresponding 2a , 3a -epoxy compound and treating this compound with the required hydrogen halide.  (In one example methyl lithium is used instead of a Grignord reagent for reaction with 5a -androst-2-en-17-one to form the intermediate 17a -methyl-5a -androst-2-en-17b -ol). The 2b -halo-5a -androstane-3a , 17b -diol 17-mono-alkanoates of the above formula are prepared by acylating any of the previously mentioned 5a -androst-2-en-17b -ols to form the corresponding 17-alkanotes, treating these compounds with perbenzoic acid to form the corresponding 2a ,3a -epoxy compounds, and treating these compounds with the required hydrogen halide.  The compounds of the above formula in which Y represents an alkyl radical containing more than one carbon atom may also be prepared by catalytic hydrogenation of the corresponding 17a (1-alkynyl) compounds.  The 3 - monoalkanoates - 17b -hydroxy compounds of the above formula are prepared by acylating the corresponding 3a , 17b -diols with a limited quantity of an acylating agent-an excess of the acylating agent forms the 3a ,17b -dialkanoates, which may also be prepared by heating the 3a -17b -diols with the appropriate isopropenyl ester in the presence of an acid catalyst and by acylating the required 3a -ol-17b -alkanoate.
Patent GB-983842-A (GB)
Title: Expansible linkage for use in articles of jewelry, such as bracelets and the like
IPC: A44C5/06
Filed: 1961-06-05
Abstract: 983,842. Bracelets. T. SHIBUYA. June 5, 1961, No. 20228/61 Heading A3H. A lazy tong linkage has hook and slot connections between the ends of the links which are disengageable at the fully extended position of the links. Links 11, 12 are connected by a central hollow pivot on the links 12. A spring 18 within the hollow pivot has ends which engage outer shells 19, 20. Slots 14 at the ends of links 11 engage hooks 16 on the ends of links 12. Disengagement of the hooks from the slots may be effected by aligning the hooks and slots in the fully extended position of the linkages, or if the hook is longer than the slot tilting the links to disengage. The hooks may extend in either direction from either the upper or lower links.
Patent GB-895241-A (GB)
Title: Apparatus for expanding textile web or sheet material
IPC: D01G23/00
Filed: 1957-06-27
Abstract: 895,241. Treating carded webs. BORGERS, W. Sept. 29, 1958 [June 27, 1957], No. 20243/57. Class 120(1) [Also in Group XVI] Apparatus for expanding a web of carded fibres, as for removing folds or ridges caused by a doffing comb, consists of a series of rotating wheels or belts arranged side by side but inclined relatively to one another by means of a guide for each wheel or belt, the inclination of the wheels or belts being adjustable. Wheels 16 are mounted on individual bushes or guides splined on a shaft 13. Each bush has an annular groove in its outer surface to receive its associated wheel 16; the bearing grooves for the two central wheels being concentric with the bush bores but other grooves being disposed about axes inclined to the bore axes. A partial rotation of the shaft 13 will vary the effective inclination of the wheels 16. Rotation of the wheels 16 is accomplished through wheels 19 rotatable on the shaft 13 by securing a rod 22 to the wheels 19 and connecting each wheel 16 to the rod 22 by means of springs. Belts may pass over the wheels 16 and an associated series of wheels.
Patent GB-386249-A (GB)
Title: Soldering-tool for aluminium and aluminium alloys
IPC: B23K35/28
Filed: 1932-07-18
Abstract: 386,249. Soldering aluminium. ULRICH, A., 30, Klein Albis, Zurich, Switzerland. July 18, 1932, No. 20314. Convention date, July 24, 1931. [Class 83 (iv).] Soldering - irons.-The copper bit of a soldering iron for solder ing aluminium or alloys thereof has a slot wherein is adjustable by a flat slide a wire brush for rubbing the joint while solderis being applied, so as to remove oxide. The wire brush d which is slidable in a slot c between the two riveted parts a, b of the bit, is welded to a slide f which is secured by a pin g to a bridge-piece h. The bridge piece is notched at each end to fit in grooves i in nuts k which are adjustable on screwed spindles l fixed in the bit. The brush may be drawn back after the solder is rubbed in so as to facilitate the soldering operation. The Specification as open to inspection under Sect. 91 describes a construction in which the bit is mounted on an arm s adjustable on a curved guide t secured to the nozzle of a vapour burner so that the bit may be first heated and the arm then adjusted so that the burner heats both the bit and the work. The burner tube is provided with a pivoted support r. This subject-matter does not appear in the Specification as accepted.
Patent GB-386656-A (GB)
Title: Improved chromium nickel steel alloys
IPC: C22C38/40
Filed: 1931-07-15
Abstract: Chemically neutral chromium - nickel steel alloys contain also such a quantity of zirconium, or uranium, or both, as to enter into stable chemical combination with the carbon dissolved in the austenitic foundation mass, the austenitic structure of the alloy being retained even when it is heated to a temperature of about 500-900 DEG  C.  The quantity of zirconium, or uranium, or both, should be at least twice as great as the carbon content of the alloy.  The alloys may contain less than 1 per cent of carbon, 12-40 per cent of chromium, 7-25 per cent of nickel, and up to 10 per cent in all of zirconium, or uranium, or both.  Specifications 129,330, 151,981, 220,710, and 305,654, [all in Class 82 (i), Metals, Extracting &c.], are referred to.  The Specification as open to inspection under Sect. 91 comprises also the addition of one or more of the elements, niobium, tantalum, hafnium, or rare earth metals such as cerium, thorium, lanthanum, yttrium, neodymium, and samarium, instead of or together with zirconium, or uranium, or both, for the purpose specified.  This subject-matter does not appear in the Specification as accepted.  The addition of one or more of the said elements niobium, tantalum, &c. instead of zirconium and uranium to chemically neutral chromium nickel steel alloys forms the subject of divided Specification 386,690.
Patent GB-377810-A (GB)
Title: Improvements relating to inertia starters for internal combustion engines
IPC: F02N5/04
Filed: 1931-07-16
Abstract: 377,810. Turning-gear. CIRRUSHERMES ENGINEERING CO., Ltd. and CAPLE, A. H., Gresham House, Old Broad Street, London. July 16, 1931, No. 20386. [Class 7 (v).] An inertia starter for internal-combustion engines comprises a housing 1, a manually driven shaft 3 for rotating a flywheel 13 through worm gearing 6, 7 and epicyclic gearing 9, 10, 11, and a jaw clutch member 18 driven from the flywheel through the epicyclic gearing and a cone clutch 14 within the worm wheel 7. The shaft 3 has a pin 4 for engagement by a starting handle and has keyed thereon the worm 6. The worm wheel 7 is secured to a clutch hub 8 on which is mounted the internally toothed wheel 9 of the epicyclic train. A pair of connected planet wheels 9a, 10a engage the wheel 9 and a fixed internal gear ring 10, and a sun pinion 11 engaging the planet wheel 10a is mounted on the spindle 12 of the flywheel. The cone clutch 14 is held in engagement with the clutch hub 8 by a spring 15 and the jaw clutch 18 is moved into engagement with an engine member by a manually operable rod 19.
Patent GB-499015-A (GB)
Title: Educational appliance for teaching arithmetic
IPC: G09B19/02
Filed: 1938-07-09
Abstract: 499,015. Educational appliances. SCHLEGEL, R. July 9, 1938, No. 20389. Convention date, July 9, 1937. [Class 146 (ii)] A device for teaching arithmetic comprises an interchangeable band bearing numbers and movable past an aperture in a casing which is also provided with members adapted to take interchangeable tablets bearing numbers on an arithmetical sign whereby the number exposed in the aperture, and the sign and number on the tablets form an arithmetical. problem. The device comprises a box having an apertured hinged cover 4 and adapted to be suspended either horizontally or vertically. The box carries an electric or other motor 5 preferably controllable by an external device 21 and serving to drive a pulley 6 which, with a spring-pressed roller 12 and guide rollers 11, 20, supports an endless band 10 on which numbers are inscribed. Guides 22 are provided adjacent the aperture 15 for supporting cards 23 bearing arithmetical signs and cards 24 bearing numbers; the guides 22 can be pivoted to the cover in order that they may be moved out of the way when not required,
Patent GB-1276437-A (GB)
Title: Improvements in or relating to an instant coffee composition
Inventor: RHODES DAVID
IPC: A23F5/38
Filed: 1970-04-28
Abstract: 1276437 Instant coffee agglomerates GENERAL FOODS Ltd 28 April 1971 [28 April 1970] 20474/70 Headings A2B and A2E A free-flowing soluble agglomerated powder of instant coffee is prepared by forming into clusters milled soluble coffee particles having a bulk density before milling of 0.05-0.18 gm/cc and a residual moisture content of 2-7 wt %, feeding the clusters into a zone wherein they are moistened and heated, for example by steam, whereby an agglomerated granular powder is formed, and drying. The product preferably has a bulk density of 0.22-0.34 gm/cc, at least 40 wt % of the particles being larger than 40 mesh B.S., having a colour of 28-50 Lumetron units, and a comparative hardness of less than 10%, the agglomerated particles being granular chips with substantially regular faces. The clusters may be formed by feeding the particles in sufficient depth into a vibrating distributor box wherein they are compacted. The feed stock may be prepared from a foamed extract, for example by spray drying, and the milling is preferably effected with chilling. The milled powder preferably has a bulk density of 0.23-0.33gm/cc.
Patent GB-1459030-A (GB)
Title: Reciprocating hydraulic motors and pumps
IPC: F03C1/04
Filed: 1974-05-09
Abstract: 1459030 Reciprocating motors and pumps F PECORARI 9 May 1974 [24 May 1973] 20547/74 Heading F1A In a hydraulic motor or pump, e.g. of radial type, each plunger 8 sealingly slides through a member 17 having a part-spherical surface engaging a corresponding seating surface in the motor or pump casing 14, member 17 being biased on to its seating by an annular resilient washer 18 with diametrical bends 21 on its opposite faces at 90 to one another, the apices of the bends bearing on the surface 22 of a working chamber closure 23 and a plane surface 17a of member 17, respectively. A projection 19 on the washer 18 prevents rotation thereof. The hollow interior of plunger 8 is closed by a plug 11. The plunger is retained in engagement with crank-shaft bearing assembly 4, 5 by rings 6 held by cup springs 10. Working chamber 25 communicates with a distributer via passage 20.
Patent GB-945230-A (GB)
Title: A device for the sequential assembly of apparatus such as watch-movements, micro-switches, voltmeters, ammeters and the like
IPC: B25H1/02
Filed: 1962-05-29
Abstract: 945,230. Endless conveyers. LANGENDORF WATCH CO., and M. MOUCHE. May 29, 1962 [June 6, 1961], No. 20554/62. Heading B8A. Watches carried on supports 34, Figs. 1, 2, attached at intervals to an endless chain 29, driven by an electric motor (not shown), are brought successively, in step-wise fashion, to a working platform 28 where assembly operations may be carried out, a cover 1 protecting the watches from moisture and dust except when the supports 34 pass on to the platform 28 through an opening 33 in the cover 1. Each movement of the conveyer chain 29 is initiated by an operator momentarily closing a switch (not shown), the amount of movement being controlled by a cam 37 and a cut-out switch 38. In Fig. 10 the watches are carried on contacting supports 71 running in a guide 70. An endless chain 73 carries spaced supports 76 and is moved stepwise to carry the watches successively to a working position 76<SP>1</SP>. Synchronized with the chain 73 is a fork 77, one arm 77g of which feeds one of the supports 71 on to the chain 73 while the other arm 776 moves one of the supports 71 of the chain 73. The watches on the supports 71 on the guide 70 are within a cover 1 and pass through an opening 79 to reach the working position 76<SP>1</SP>. In Fig. 11 watches 82 on supports 81 on a guide 80 are brought successively to a working position over a platform 83 by a star wheel 85, the watches not over the platform 83 being protected by a cover 1. The driving means may be compressed air driving a piston sliding in a cylinder or pedal means actuated by the knee or hand of the assembly worker.
Patent GB-1387953-A (GB)
Title: Crimping apparatus
Inventor: KREMKAU W J
IPC: H01R43/058
Filed: 1973-05-01
Abstract: 1387953 Jointing by stamping; making electrical connections AMP Inc 1 May 1973 [12 May 1972] 20617/73 Headings B3A and B3Q Apparatus for crimping electrical terminals 10, Fig. 7, to leads 12 includes funnel portions 90, Fig. 2, with radial legs 87 movable in synchronism with crimping jaws 96 to define a funnel, Fig. 7, for guiding and locating a lead in a terminal, and a collar 64 carrying resilient cams 66, Fig. 2a, for operating the legs 87. Each cam has a surface 71 for urging the legs 87 together upon rotation of the collar 64 in one direction, and a second surface 120 for retaining the legs together upon rotation of the collar 64 in the opposite direction during crimping. The entry end of surface 120 is at the exit end of surface 71 and a step at the exit end of surface 120 permits the legs 87 to spring back into engagement with the entry end of surface 71 to open the portions 90. As shown, Fig. 1, the guide funnel and crimping jaws are mounted in a stationary head 46 within a carrying case 28 to which terminals are fed from a reel 31. The terminals 10 are held in pockets 22, Fig. 7, between the layers of a plastics strip 16 which is advanced by a belt (16), Fig. 4 (not shown), having teeth (117) engaging slots 18 in the strip 16. A disc 80, Fig. 2, has guides slots 82 in one side for the legs 87 and slots 92 in the opposite side in which the crimping jaws 96 are movable inwardly by cams 75 and outwardly by cams 76 having slots engaged by pins on the jaws. The jaws 96 have adjustable control sections 99. The cams 66 and cam carriers 67 for the legs 87 are mounted in recesses 65 in one side of the collar, cam 75, 76 for the crimping jaws being mounted in recesses 74 in the opposite side of the collar. A pin 77 on the collar 64 is connected to a lever (110, Fig. 4) which is rocked by an electric motor and flywheel to oscillate the collar. Springs 86 bias the legs 87 outwardly, the disc 80 being received within the collar 64 and the collar within an outer ring. A plastics cover 53 has a lateral slot 56 through which a terminal is removed, having been crimped to a wire in the central opening 55. The ends 38, Fig. 7, of the leads 12 are stripped of insulation in a known stripper 36 which is driven by the power means of the crimping head.
Patent GB-746657-A (GB)
Title: Improvements in or relating to amplitude modulator circuits
IPC: H03C1/58
Filed: 1954-07-14
Abstract: 746,657. Modulating systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 14, 1954 [July 15, 1953], No. 20625/54. Drawings to Specification. Class 40 (5). In an amplitude modulator circuit of the type comprising two centre-tapped transformers coupled by rectifiers, the stray inductance of the carrier input circuit is tuned by a series capacitor to the carrier frequency.
Patent GB-131608-A (GB)
Title: Improvements in and relating to Window Ventilators.
Inventor: FUHR ALBERT B
IPC: E06B7/10
Filed: 1919-08-22
Abstract: 131,608. Fuhr, A. B. Aug. 22, 1918, [Convention date]. Ventilators.-A window ventilator consists of a metal framelike casing mounted outside the window frame A and provided with hinged panels which can be swung from within the room. The front panels 24. 25 are hinged along their upper edges to open inwards and can be held in position by stays 30, 32 and clamping-screws 33. The side. panels 22 and top inclined panel 26 are hinged to open outwards, the latter also being held in position by stays 30, 32. The floor 8 has removable panel 10 to permit delivery of goods &c.