baber/WOPTO huggingface dataset:
Patent GB-1424070-A (GB)
Title: Camera with flash cube holder for impact-ignited flash cubes electromagnetic bearing means
IPC: G03B15/04
Filed: 1973-04-25
Abstract: 1424070 Flash devices REGULA-WERKKING KG 25 April 1973 [28 April 1972 12 Oct 1972 (2) 23 Oct 1972] 19697/73 Heading G2X A camera designed for use with impact-ignited flash-cubes can be adapted so that it may also be used with an electronic flash unit. As shown, the camera 1 has retaining noses 7 which engage and hold the flash cube. When the shutter is operated, a striker pin 8 is driven to engage and release a preloaded impact device in the flash-bulb which initiates the ignition thereof. In order to use the camera with an electronic flash unit instead, the unit 2 is attached to the camera, either by a shoe or an adhesive connecting device. As shown in Figs. 2 and 3, the flash unit has a projection 2', 2" which enters the flash-cube socket 11 and engages with the retaining noses 7. Since an electronic flash reaches maximum intensity more quickly than an impact-ignited flash, it is necessary to introduce a delay when electronic flash is used. As the striker pin 8 enters the flash unit 2 through an aperture 9, it engages and closes a switch 6 which is synchronized with the camera shutter. This switch forms part of a delay circuit Fig. 6 (not shown) including an RC network, which fires the flash after a predetermined delay period. Various alternative means are shown of mounting the flash unit on the camera.
Patent GB-883490-A (GB)
Title: Apparatus for investigating earth formations
IPC: G01V3/18
Filed: 1959-06-09
Abstract: 883,490. Determining characteristics of earth strata. SCHLUMBERGER WELL SURVEYING CORPORATION. June 9, 1959 [June 23, 1958], No. 19778/59. Class 37. Bore-hole logging equipment comprises a coil or coils for inducing current into the earth and electrodes for contacting the earth, at least one of the electrodes comprising a closed loop and a plurality of spaced conductive surfaces positioned so that the effect on the coil of eddy currents in the electrodes is minimized by an opposing effect of eddy currents in the closed loop. Fig. 1 shows a hollow resinbonded glass-fibre mandrel 32 carrying transmitting coils T1, T2 and receiving coils R1, R2, R3. The coils T1, T2 are connected in series opposition and fed with current at 20 kc/s. from a generator contained in compartment 18a. Coil R1 is connected in opposition to coils R2, R3, their effective output being fed to a phasesensitive detector in compartment 18b. The direct current output is fed to a recorder 28 which plots the resistive or reactive component of the earth impedance against depth. Electrodes A1, A0 feed a current at 400 c/s. into the earth. A common return electrode 21 is provided. Voltages dependent on the earth impedance are picked up by electrodes M1, M2 and fed via a further phase-sensitive detector to recorder 42. The two recorders may be cornbined in a single instrument which may record the ratio of inductive/conductive measurements. The coils shown may be replaced by a single coil. Electrode and coil construction.-Fig. 3 shows coil T2 separated by rubber from electrostatic shields 34, 37 and contained in a recess in the mandrel 32. An outer sleeve 44 of resin-bonded glass-fibre carries the electrodes such as A1 in the form of a number of plates interconnected to a closed loop 47 by conductors 49. The relative position of plates and loops in each set of electrodes is adjusted so that the effect of eddy currents in the loop cancels that in the plates. The effect on the coil system of varying the position of plates and loops is discussed in detail, results being expressed graphically in Figs. 4, 5, 7 (not shown). The X/R ratio of each loop is important, the loops associated with electrodes A0, M1, M2 being made of nickelchromium-iron alloy whilst that of A1 of copper. The axis of one or more loops may be tilted relative to that of the mandrel 32. In Fig. 6 (not shown), the common return electrode 21 is located near the lower end of the mandrel 32. Temperature compensation is achieved by using for one set of electrodes elements in which the R/X ratio at the operating frequency is less than unity and a further set using elements having a ratio greater than unity.
Patent GB-151785-A (GB)
Title: Method of and apparatus for mixing a high pressure gas and a low pressure gas for welding blowpipe burners and the like
IPC: G05D11/00
Filed: 1919-08-12
Abstract: 151,785. Mangiameli, F. Aug. 12, 1919. Blowpipe burners.-Oxygen from a cylinder B on its way to a blowpipe burner A drives a fan C which operates a compressor D supplying combustible gas from a gas-holder E to the burner, thus increasing the pressure of the combustible gas and tending to obtain equality in the pressure of the two gases.
Patent GB-261668-A (GB)
Title: Improvements relating to tip-up seats
IPC: A47B39/08
Filed: 1926-08-12
Abstract: 261,668. Kirkpatrick, Ltd., and Baker, J. W. Aug. 12, 1926. Folding brackets; brackets, securing.-Folding brackets for tip-up seats &c. comprise two members 10, 15 pivoted together on the same axis and each having one or more projections 30 joined at one end to a raised central boss 26 and at the other to a raised peripheral ridge 25 to limit pivotal motion. The members 10, 15 are formed each with three equally spaced radial ribs 30 of greater depth than the bosses 26 and ridges 25. The member 10 is flanged at 11 for strength and has a projection 12 and square hole 13 for attachment to an H member.
Patent GB-1032890-A (GB)
Title: New picolinic acid amide derivative and process for preparing same
IPC: C07D498/04
Filed: 1963-11-08
Abstract: The invention comprises 3-hydroxy-N-nitro-picolinamide of the formula <FORM:1032890/C2/1> and a process for the preparation thereof by dissolving 3-hydroxy-picolinamide in conc. H2SO4 and adding a mixture of fuming nitric acid and conc. H2SO4 at a temperature not exceeding 25 DEG  C.
Patent GB-224282-A (GB)
Title: Improvements in electric resistance welding
IPC: B23K11/24
Filed: 1923-08-03
Abstract: 224,282. Hadley, C. A., and Rose Street Foundry & Engineering Co., Ltd. Aug. 3, 1923. Systems depending on the use of static transformers. - In electric resistance welding the current doliveted by a transformer is caused to fluctuate between maximum and minimum values by means of two windings f, a adapted for constant relative rotation in one direction, one winding being in series and the other being in shunt with the welding transformer e. If desired the series winding may be arranged on the stator b .and the shunt winding on the rotor g. An additional shunt winding may be arranged at 90‹ to the winding f so as to operate only when the windings f, a are at right angles to one another.
Patent GB-219184-A (GB)
Title: A plectrum for stringed musical instruments
IPC: G10D3/16
Filed: 1923-08-03
Abstract: 219,184. Briggs, G. E. Aug. 3, 1923. Stringed instruments, plectra for.-A plectrum is formed of a wire loop C with helical spring ends B passed on to the ends of a metal bar A of horseshoe shape.
Patent GB-391650-A (GB)
Title: Improvements in teat-cups for milking machines
IPC: A01J5/08
Filed: 1932-07-15
Abstract: 391,650. Cow-milkers. PERSOONS, J. and PERSOONS, A., Thildonck, Belgium. July 15, 1932, No. 20050. Convention date, July 17, 1931. [Class 84.] The lining 2 of a teat cup is longer than the body 1 and is provided at the upper end with a ring 4 adapted, when the lining is folded outwardly upon itself, to fit tightly in a groove 5 formed at the upper end of the body 1, the ring being retained in the groove by a metal cap 8 held in position by a rubber cap 10. The groove 5 is formed in a member 6 which is secured to the body 1 and is provided with a collar 7 upon which the cap 8 rests and beneath which an inturned flange 7a on the cap 10 engages. The lower end of the liner is held in position by a fitting 12 formed on the nozzle 14 and secured by a ring 13.
Patent GB-798000-A (GB)
Title: Adjustable cylindrical roller bearing
IPC: F16C25/06
Filed: 1956-06-29
Abstract: 798,000. Roller bearings. SPIETH, R. June 29, 1956, No. 20144/56. Class 12 (1). In a cylindrical roller bearing, the outer race comprises an annular member having radial recesses 8, 9 arranged alternately along its outer and inner peripheries whereby the application of axial force, by rotation of the screwed ring 5, increases the radial thickness of the race thereby reducing the clearance in the bearing. Outer parts 12 engage the bore of the housing 1 and inner parts 13 form the raceways for rollers 7. The race is provided at each end with inwardly directed flanges 11. Alternatively, or additionally, the inner race may be formed as an elastic member. Specifications 359,373, U.S.A. Specification 1,912,023 and German Specification 509,315 are referred to.
Patent GB-201544-A (GB)
Abstract: 201,544. Schoeller, Geb. July 31, 1922, [Convention date]. Printing yarns.-In an apparatus for printing warps, of the kind in which colouring-rollers are moved transversely over warps wound on a drum or on a table, the warps are supported by a material, such as a metallic cloth, which is permeable to the colour and yet non-absorbent. An impermeable drum a is covered with an oiled cloth b over which is placed a thin layer of wire fabric c covered by the warps g. Colour is applied by a roller d provided with equalizing-rollers e, f, the rollers being moved in a direction parallel to the axis of the drum. The colour is thus applied directly to the outsides of the warps, some of the colour passing into fabric c and finally to the inside of the warp, so that the warp is coloured uniformly throughout.
Patent GB-184984-A (GB)
Title: Improvements in or relating to the production of artificial resins
IPC: C08K5/057
Filed: 1921-07-27
Abstract: To render phenol-formaldehyde resins more stable chemically and physically, the resin, free from water, is melted and dry powdered alkali glycerate stirred in until the whole is homogeneous.  If more than 2 per cent of glycerate is added, an insoluble fusible resin results.
Patent GB-741449-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F27/28
Filed: 1953-07-21
Abstract: 741,449. Transformers. GENERAL ELECTRIC CO. July 21, 1953 [July 25, 1952], No. 20224/53, Class 38 (2). A transformer has a number of axially-spaced disc coils surrounding each core leg, each disc coil being divided into two sections 11, 12 to form two annular ventilating ducts; one between the core leg and the inner coil section 11, the other between the inner coil section 11 and the outer coil section 12; the axial spacing of the coils being effected by spacing members 19, the radial spacing by spacing members 20, 21, the spacing members being interlocked by means of slots 22, 23 and projections 24, 25. The projections 24, 25 may be on opposite sides of the spacing members 21, 20, as shown, or they may be on the same side as desired. The spacing members 20, 21 are slightly thinner in an axial direction than are the disc coils. Specification 741,451, describing the coil construction, is referred to.
Patent GB-1512544-A (GB)
Title: Phosphonium compounds
IPC: C07J53/00
Filed: 1975-09-12
Abstract: 1512544 Preparing phosphonium bromides UPJOHN CO 12 Sept 1975 [10 Oct 1974] 20405/76 Divided out of 1512543 Heading C2P A phosphonium bromide of the formula (aryl) 3 P<SP>(+)</SP>-CH 2 -CR = C(CH 3 ) 2 Br<SP>(-)</SP>, wherein R is H or CH 3  and aryl is phenyl or phenyl substituted by an inert substitutent or substituents, is obtained by reacting a bromobutene: CH 2  = CH-C(CH 3 ) 2 Br with a triaryl phosphine. Specified triaryl phosphines are triphenyl, tritolyl and trixylyl phosphines and diphenyl pcarboxyphenyl phosphine. A solvent may be present, specified solvents being methylene chloride, dichloroethane, chloroform and dichlorobutane. The bromobutenes may be obtained by hydrobromination of the appropriate diene. An example is given for the production of (C 6 H 5 ) 3 P<SP>(+)</SP>CH 2 -CH 2 -C(CH 3 ) 2 Br<SP>(-)</SP> from triphenyl phosphine and a bromobutene obtained by treating isoprene with HBr gas in methylene chloride at -10 C.
Patent GB-1459029-A (GB)
Title: Electrical terminal assembly
IPC: H01R4/24
Filed: 1974-05-09
Abstract: 1459029 Electric couplings AMP Inc 9 May 1974 [30 May 1973 21 Feb 1974] 20455/74 Heading H2E A terminal assembly comprises two rows of terminals 8 mounted on a panel 2, each terminal of one row being opposite a respective terminal of the other row, and each terminal 8 comprises two parallel face-to-face plates 16, 18 each with a wire-receiving slot (31), 33 respectively, the slot of each terminal which is adjacent the slot of the respective opposite terminal being wider than or the same width as the other slot of the terminal. Each terminal includes a wire wrapping post 12, a lug 6 located in a hole 4 in the panel and an S-shaped component supporting and connecting member 14 which comprises the two plates 16, 18 and a third plate 20 interconnected by bights 22, 24. A mouth 26 in bight 22 leads to the slots (31), 33; slot 33 is narrower than slot (31). Lead wires W2, W3 of, e.g. resistors or capacitors, are inserted into the slots (31), 33, two opposite terminals receiving the lead wires from one component. The narrow and wide widths of the slots (31), 33 enable a range of wire diameters to be accommodated. Excess length of the wires W2, W3 is sheared by the edge 21 of the plates 20. In the embodiment of Figs. 4 to 8, not shown, the slots in each terminal are of substantially the same width but are tapered along one side and laterally off-set from each other; the two plates are contiguous and are cammed laterally against the resilience of the bight (122) when a wire is inserted to bring them sufficiently into line to accept the wire. The post 12 may be replaced by a solder or crimping tag or a coupling contact. The lug 6 may be soldered to printed or other circuitry on the panel 2.
Patent GB-614220-A (GB)
Title: Improvements relating to thermionic valve control circuits
IPC: G08C15/06
Filed: 1946-07-09
Abstract: 614,220. Valve circuits. SCOLES, G. J., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. July 9, 1946, No. 20510. [Class 40 (vi)] A chain-switching circuit in which a number of circuits operate in sequence, each initiating operation of the succeeding circuit after a predetermined delay, includes a valve having its anode circuit capacitively coupled to the grid of the succeeding valve and a resistor connected from this grid to a point of positive potential, both valves being normally conducting. In this way a negative pulse applied to the grid of the first valve cuts it off and the fall in anode potential at the termination of the pulse transmits a negative pulse to the succeeding valve the duration of each pulse being determined by the rate of re-charge of the associated coupling capacitor. In Fig. 1 a negative pulse applied to the grid circuit of valve V1 cuts the valve off and the voltage at the anode of the valve rises. Since the succeeding valve V2 is already drawing grid current, this has no effect until, at the termination of the pulse, the anode potential falls and the valve V2 is cut off initiating a pulse in the anode circuit of V2, the process being continued. down the chain. The pulse generated at the anode circuit of valve V2 is terminated when capacitor C2 regains its initial charge. In a modification, Fig. 2 (not shown), each valve of the chain is associated with a gating valve the two having a common cathode resistor so that when the chain. valve is conducting the gating valve is cut-off. As each chain valve is cut-off its associated gating valve is rendered conducting and signals at its grid appear across its anode load circuit, which may be common to all the gating valves. Thus, signals are sequentially passed through the gating valves to a load, the chain may be a closed one and more than one triggering pulse may pass round the chain at any instant. In a further modification, Fig. 3, the chain is rendered self-starting by means of a normally free-running multi-vibrator V7, VS. Due to the common cathode connection, the chain valve V2 has a pulse applied to its cathode from the multi-vibrator which initiates operation of the chain as described with reference to Fig. 1. When the anode of the last chain valve is driven positive, diode V9 conducts and shorts resistor R5, at the termination of the pulse when the anode potential falls current flows through resistor R5 to charge capacitor C5, a negative bias is applied to the multi-vibrator valve V7 and the multi-vibrator ceases to oscillate. If the chain action ceases, the charge on capacitor C5 leaks away and the multi-vibrator commences operation, thus initiating a fresh cycle of operation in the chain circuit.
Patent GB-905870-A (GB)
Title: Directional gyro having improved means for caging a directional signal transmitting synchro to a null signal position
IPC: G05D1/02
Filed: 1960-06-10
Abstract: 905,870. Measuring electrically. BENDIX CORPORATION. June 10, 1960 [June 29, 1959], No. 20525/60. Class 40 (1). In a directional gyro the rotor of a transmitter synchro is coupled to the gyro by a friction clutch and means are provided to turn the synchro rotor to a preselected null position relatively to the gyro casing without changing the position of the gyro rotor. Fig. 1 shows the synchro transmitter 72 of which the rotor 70 is mounted on bearings 56 on the gyro gimbal shaft 10, the motion of the shaft being transmitted to the rotor by the friction between the rotor and the leaf spring 53 attached to the shaft 10. The means by which the rotor is driven to its null position comprises a cam 54 attached to the rotor, and a solenoid 90, Fig. 2, which, on energization by closing switch 112, presses, via spring 95, the cam actuator 80 into contact with the cam and so drives cam 54, and hence the synchro rotor, until roller 105 drops into recess 109 which corresponds to the null position of the rotor. Micro-switch 113 operates immediately the cam actuator moves into contact with the cam and reduces the solenoid current from that required to pull the solenoid in down to the holding value, while micro-switch 114 operates when the roller 105 drops into recess 109 and opens the circuit of the lamp 115 to indicate that the null position of the rotor has been reached. Shaft 11 fitted to the other end of the gimbal 9 is connected to a levelling torquer motor 77 controlled in a conventional manner by a suitable tilt angle sensor switch 78 which may be of the type disclosed in Specification 816,719. This arrangement also provides a torque to oppose that transmitted from the synchro rotor to shaft 11 by spring 53 when the synchro rotor is being driven to its null position on energization of the solenoid 90. An alternative form of friction coupling between the gimbal shaft 10 and the synchro rotor is shown in Fig. 3 in which the spring pressure is transmitted to the rotor via an armature 156 which may, on energization of electromagnet 150, be disengaged from the rotor whilst the rotor is driven to its null position as described above.
Patent GB-852168-A (GB)
Title: Safety devices for use with pit-cage winding machinery
Inventor: BARKER WILFRED
IPC: B66B5/28
Filed: 1958-06-27
Abstract: 852,168. Overwinding preventing. BARKER & SON ENGINEERS Ltd., W. H. June 11, 1959 [June 27, 1958], No. 20649/58. Class 78 (2). [Also in Group XXXIV] A safety braking device for slowing down a pit cage in the event of overwinding taking place comprises a plurality of bronze rods a anchored at b to stationary beams c, and reducing dies h which are mounted in a frame i, k and surround reduced diameter portions of the rods. In operation, under overwind conditions the cage g contacts frame members k thereby causing the cage to be braked by axial drawing movement of the dies along the rods. In a modification (not shown) the rods are moved through stationary dies.
Patent GB-1000084-A (GB)
Title: Preparation of polyurethanes
IPC: C08G18/22
Filed: 1962-05-29
Abstract: A method of making a foamed polyurethane comprises reacting a polyalkylene polyol, an organic polyisocyanate, water, a gel catalyst constituted by an organic tin compound and a blowing catalyst constituted by a soap of antimony, bismuth or arsenic. "Polyalkylene polyol" denotes an organic compound having reactive hydrogen atoms as determined by the Zerewitinoff Determination and includes polyesters (including fatty acid glycerides), polyethers, polyisocyanate-modified polyesters, polyesteramides or alkylene glycols, polymercaptans and polyamines.  The organic tin compound is preferably of the formula Sn(OCOR)2 or R1aSnXb, wherein R and R1 are hydrocarbon radicals and X is chlorine or a negative residual portion of an organic carboxylic acid, a mercaptide, an alcohol or an ester of a mercaptoacid, each of a and b being an integer from 1 to 3 and a plus b being 4.  The polyisocyanate may be an alkylene or arylene di-isocyanate or a tri-isocyanate such as a reaction product of an arylene diisocyanate and a triol.  The blowing catalyst is preferably formed from an aliphatic monocarboxylic acid containing 7 to 22 carbon atoms.  In examples, foams are prepared by reacting a glycerine/propylene oxide reaction product, a silicone cell-modifying agent, tolylene diisocyanate, dimeralized water, metal soap and tin compound.  The tin compounds used are stannous 2-ethyl hexoate, stannous oleate, dibutyltin dilaurate and dibutyltin dilauryl mercaptide.  Soaps specified are antimony tri-2-ethylhexoate, tritallate, tripelargonate, tri-tetrachlorobenzoate and tri-cyclohexylcarboxylate; arsenic trioleate and tripelargonate; bismuth tri-2-ethylhexoate and trioleate.  Reference has been directed by the Comptroller to Specification 892,137.
Patent GB-897497-A (GB)
Title: Improvements in photographic gelatino-silver halide emulsions
IPC: G03C1/04
Filed: 1960-06-13
Abstract: 897,497. Photographic silver halide materials. DU PONT DE NEMOURS & CO., E. I. June 13, 1960 [July 10, 1959], No. 20699/60. Class 98(2). A photographic gelatino-silver halide emulsion comprises 5-50% of a water-soluble dextrin, by weight of the total dry solids in the emulsion, a 25% by weight aqueous solution of the dextrin having a viscosity of 5-350 centipoises at 25‹C. Dextrin also may be included in a subbing layer, an interlayer, a filter layer or an anti-abrasion layer adjacent the silver halide emulsion layer. Specifications 592,676, 600,058, 658,826, 718,422, 762,019 and U.S.A. Specification 1,925,508 are referred to.
Patent GB-376032-A (GB)
Title: Improvements in fuel bunkers for the steam generators of locomotives and other engines and plant
IPC: B61C17/02
Filed: 1931-07-20
Abstract: 376,032. Fuel bunkers for locomotives and other engines and plant. BEYER, PEACOCK, & CO., Ltd., Gorton Foundry, Manchester, and JACKSON, S., 260, Bramhall Lane, Stockport. July 20, 1931, No. 20747. Addition to 319,052, [Class 79 (i), Locomotives &c.]. [Class 79 (i).] The rotatable self-feeding and trimming fuel bunker described in the parent Specification is provided with means whereby the rotation is limited to part of a revolution only. In the construction shown the bunker B is provided with a curved lower portion b<1> and is mounted in bearings C, C<1> about which it is rocked to feed the fuel forwards by a power- or handoperated pinion D engaging a toothed sector G. The power gear may comprise a steam or other motor or a steam cylinder actuating a rack. A fuel conveyer or pulverizer as described in Specification 319,094, [Class 79 (i), Locomotives &c.], may be provided.