baber/WOPTO huggingface dataset:
Patent GB-133703-A (GB)
IPC: B61L5/16
Filed: 1919-10-09
Abstract: 133,703. Soc. d'ElectricitÚ Mors. Oct. 4, 1918, [Convention date]. Right to Patent relinquished. Slots, reversers, and like apparatus.-The electro-magnet serving to actuate a brake or clutch device of an electrically-operated signal mechanism serves also to close the circuit of the operating motor. The armature g<1> of the magnet g which is energized by closing the distant switch a closes the contacts d<1>, d<2> in the circuit of the motor j. This circuit includes also a contact 1 which is opened when the signal is set to clear in order to stop the motor. The arrangement described is particularly applicable to the signal apparatus described in Specification 2741/14.
Patent GB-990869-A (GB)
Title: Improvements relating to iron-containing feedstuffs for pigs
Inventor: BARNHART CHARLES ELMER
IPC: A23K1/16
Filed: 1962-06-27
Abstract: The subject matter is similar to that described and claimed in Specification 990,868 except that the iron agent consists of ferrous fumarate, ferrous gluconate or ferrous lactate.
Patent GB-1085436-A (GB)
Title: Improvements in and relating to processes for the production of alkane sulphonic acids
Inventor: HAY JAMES
Filed: 1965-06-11
Abstract: Sulphonic acids are produced by contacting a normal paraffin having from 6 to 20 carbon atoms or a cycloparaffin with a gas stream containing sulphur dioxide and molecular oxygen in a molar ratio greater than 2:1, said gas stream having an hourly space velocity of 60 to 130 litres/hour/litre reaction volume.  The reaction is preferably carried out in a vertical tower having a height at least four times the diameter, at temperatures between 10 DEG  and 60 DEG C., with the molar ratio of sulphur dioxide to molecular oxygen kept between 2.5:1 and 4.5:1, after any of the normal methods of initiation.  Preferred starting materials include normal paraffins of 9 to 17 carbon atoms and cycloparaffins with 6-member rings, e.g. cyclohexane and methylcyclohexane.
Patent GB-931227-A (GB)
Title: Process for the preparation of phenanthridinium salts
Inventor: BERG SAMUEL SIDNEY
Filed: 1960-07-15
Abstract: Compounds of the formula <FORM:0931227/IV(a)/1> (wherein R1 is NH2, R2 is a phenyl or p-nitrophenyl group, R3 is an alkyl group of at most 6 carbon atoms and Y is an anion) and their acid-addition salts are prepared by coupling a diazonium salt of m-aminobenzamidine with an equimolar proportion of an appropriate diamino-phenanthridinium salt at a temperature below 15 DEG C. and in an acid solution of pH 1,8 to 2,2.  An example describes the preparation of 7-(m-amidinophenyldiazoamino) - 2-amino- 10-ethyl- 9-phenylphenanthridinium bromide hydrobromide and its conversion to the corresponding chloride hydrochloride by an ion exchange process.
Patent GB-1036205-A (GB)
Title: Process for the separation of the products obtained through the nitration of cyclohexane in gaseous phase
IPC: C07C201/16
Filed: 1963-06-24
Abstract: A process for the continuous separation of nitrocyclohexane from the gaseous products of cyclohexane vapour-phase nitration comprises partial condensation of said products, removal of fatty acids from the condensate by alkali washing, distillation to remove cyclohexane and water and further distillation-at sub-atmospheric pressure-of the nitrocyclohexane.  The latter may be further purified by steam distillation, preferably in presence of a surface-active agent.
Patent GB-457357-A (GB)
Title: Improvements relating to pipe joints
IPC: F16L27/053
Filed: 1935-09-10
Abstract: 457,357. Pipe joints. BROMFORD TUBE CO., Ltd., INGALL, E. W., and SPENCER, R. W., Wheelwright Road, Erdington, Birmingham. Sept. 10, 1935, No. 25137. [Class 99 (i)] A spherical spigot b on a pipe a is secured within a corresponding socket d of a pipe c by clamping screws o which are carried by links n pivotally mounted on a ring m located on the socket to engage an annular recess on a flange p of the spigot. The spigot or socket may be provided with a rubber &c. jointing ring or rings l. In a modified joint, flanges q are located on the two pipes a, c and the clamping screws r, which are provided with nuts t, are pivoted on one flange and engage slots s in the other. A bush h is inserted in the expanded spigot part b of the pipe a to maintain a uniform bore through the joint.
Patent GB-518549-A (GB)
Title: Improvements in or relating to voltage regulating systems for alternating current generators
IPC: H02P9/32
Filed: 1938-08-26
Abstract: 518,549. Automatic control systems. DAHLGREN, F., and ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 26, 1938, No. 25150. [Class 38 (iv)] Voltage.-The voltage of an alternator is automatically regulated by a saturable choking coil in series with one of three windings on an exciter, this choking coil being variably saturated in accordance wth the alternator voltage. The saturation-is further controlled to prevent hunting in accordance with changes in the exciter voltage and a frequency-responsive correction may 'also be applied. The sub-exciter field has a shunt winding 11 and two mutually opposed windings, one 22 being fed with constant current and the other 21 fed through the inductance 15 and a rectifier 16. In one arrangement, Fig. 1, the winding 21 is excited from the alternator voltage 2 and in a modification a constant voltage A.C. supply is used. In the first case the choking coil is variably self saturated by the regulated voltage and in the second a separate saturating winding is fed from the alternator voltage through a rectifier. The adjustable anti-hunting provision is a saturating winding 24, fed from the exciter terminals through' a resistance and a transformer 25 or other device producing current variations in proportion to the rate of change of exciter volts. An auxiliary saturating winding 23 may be supplied from the alternator through a tuned circuit 20 so as to eliminate the influence of frequency variations. In the modification the constant D.C. for the winding 22 and the constant A.C. voltage for the winding 21 are obtained from a double current generator on the sub-exciter shaft.
Patent GB-822044-A (GB)
Title: Improvements in or relating to methods of and apparatus for regulating the speed and the torque of a slip-ring asynchronous machine
IPC: H02P25/32
Filed: 1956-08-17
Abstract: 822,044. Control of A.C. motors. BRONIEWSKI, B. Aug. 17, 1956 [Aug. 19, 1955], No. 25165/56. Class 38 (3). [Also in Group XXXV] The rotor winding R of an induction machine which may operate as a motor or a generator, is connected to a bridge P1 consisting of gridcontrolled rectifiers a-f which are adapted to deliver current to or receive current from a second bridge P11. The latter consists of gridcontrolled rectifiers g-l which are connected to the supply system Ra. An inductance L for limiting the ripple-current is inserted between the two bridges. Regulation of the speed or torque of the machine is effected by phase-shift control of the rectifiers. Thus, the speed of the machine, when it operates as a motor, may be varied above and below synchronism by phase shift control of the rectifier bridge P1. The bridge P11 may be controlled to maintain the rotor current constant and adjustable at will. In another arrangement, the supply system is connected to the rotor, and the stator to the bridge of controlled rectifiers.
Patent GB-820938-A (GB)
Title: Method of impregnating permeable materials and disinfectant preparations therefor
IPC: A01N31/08
Filed: 1955-09-01
Abstract: A disinfectant composition capable of being atomized or vaporized, comprises a chlorohydroxy-toluene of the general formula <FORM:0820938/VI/1> in which R represents hydrogen or an alkyl group, in admixture with a lipoid solvent, oil, fat, wax, solid diluent, propellant or other disinfectant substance such as a contact insecticide, e.g. D.D.T. or hexachloro cyclohexane or a respiratory poison, e.g. chloroform trichloroacetonitrile, carbondisulphide, paradichlorobenzene or naphthalene or other active substances, e.g. eugenol, triethylene glycol, benzoic acid esters, essential oils. Specified compounds are 6 - chloro - 3 - hydroxy - 4 - isopropyl - toluene, 2 - chloro - 4 - hydroxy - toluene, 4-chloro - 2 - hydroxy - toluene, 4 - chloro - 3 -hydroxy - toluene, 6 - chloro - 3 - hydroxy - toluene, 5 - chloro - 2 - hydroxy - 4 - butyl - toluene, 2 - hydroxy - 3 - propyl - 4 - chloro - toluene, 4 - chloro - 6 - hydroxy - 3 - dimethyl - propyl - toluene or 2 - hydroxy - 4 - chloro - 5 - amyl-toluene.
Patent GB-380247-A (GB)
Title: Improvements in apparatus for the treatment of organisms with electric current
IPC: A61N1/32
Filed: 1931-09-08
Abstract: 380,247. Converting. WALDENER, E. W., 21, Eriksvagen, Duvbo, Sundyberg, and NOBEL, R. B. L., 2, Lokevagen, Djursholm, both in Sweden. Sept. 8, 1931, No. 25211. Convention date, Sept. 10, 1930. [Class 38 (ii).] Apparatus wherein electrodes 1, 2 are connected to terminals 3, 4 supplied with alternating current, is modified by the introduction, in series with the electrodes, of a glow-discharge tube 54 which is discharged and quenched only at given minimum voltages within the range of the supply, the resulting current comprising successive positive and negative sinoid impulses with intervals of zero current. The impulses of opposite sign may be rendered of unequal amplitude to obtain the effect of combined intermittent alternating and direct current, by making one of the tube electrodes 21, 22 larger than the other, by providing three or more electrodes of different sizes which may be connected in the circuit in any desired combination, or by providing a magnet or electromagnet in the tube. As shown a point electrode 20 is provided which may be connected in the circuit through a rheostat 23 and by means of a switch 24, either in parallel with the electrode 22, to give the above unsymmetrical wave-form, or instead of the electrode 22, to give complete rectification of the current. In a modification, a rectifying valve is connected alternatively in parallel with or in place of the electrode 22. The circuit includes a resistance, circuit-breaker, or fuse 6, and a rheostat 7, which latter may be connected between the tube 54 and the electrode 2.
Patent GB-636422-A (GB)
Title: Improvements in apparatus for launching rocket-type projectiles
IPC: F41A9/32
Filed: 1947-09-15
Abstract: 636,422. Rocket dischargers. ZBROJOVKA BRNO, NARODNI PODNIK. Sept. 15, 1947, No. 25213. Convention date, Sept. 17, 1946. Addition to 632,599. [Class 92 (ii)] The rocket-launching weapon of the parent Specification is modified by forming the breech chamber 3 with an opening communicating with a magazine 4, the opening being controlled by a forward extension 1<SP>1</SP> of a head 1 which is rotated by the dynamic action of the gases discharged by the projectiles. Further, the head serves to effect the automatic feeding of the projectiles from the magazine to the breech chamber when the extension 11 is moved to the breech-open position. Thus, when a projectile is discharged the extension 11 is rotated anti-clockwise and a gear 6 upon it by engaging with a rack 7 causes a member 9 to descend against the actions of springs 8 and 16. Spring 8 bears against a fixed casing 12 and spring 16 against a slide 13 which carries a feed pawl 10 bearing against the lowermost projectile 5. When extension 1<SP>1</SP> is in the fully-opened position, projections 17 on the member 9 release pivoted catches 11 which were previously holding the lowermost projectile, and the spring 16 is thereby allowed to expand, thus feeding the projectile into the breech chamber. When the action of the discharge gases ceases, the spring 8 returns the parts to the initial position shown.
Patent GB-906789-A (GB)
Title: Improved magnetic tape system
IPC: H04N5/931
Filed: 1961-07-12
Abstract: 906,789. Magnetic tape recording etc.; signal processing. AMPEX CORPORATION. July 12, 1961 [Aug. 22, 1960], No. 25299/61. Class 40 (2). [Also in Group XL (c)] A continuous video-frequency signal is recorded as frequency modulations of a carrier on successive transverse tracks 11 of a tape 12 by heads 16 on a rotating drum 15 and pulses corresponding to a desired change-over between heads are recorded in the same tracks. On playback, the pulses sequentially operate a sensor 26 and operate a four-way selector switch 23 after some ¢ Ás. delay at 28. An undelayed pulse generator 36 produces 1 Ás. pulses which bracket spurious pulses appearing from the demodulator 34, due to head-switching and operate a clamp circuit 40 (Fig. 2, not shownsee Group XL (c)). This holds the output at the last level before switching and suppresses the demodulator output, the brief interruption of the continuous video-frequency signal not significally affecting it. In other embodiments, the switching pulses may be recorded in a longitudinal track 10 on the tape, or pulses may be derived from the head-driving means.
Patent GB-615964-A (GB)
Title: Improvements in or relating to electric choke coils
IPC: H01F37/00
Filed: 1946-08-23
Abstract: 615,964. inductances; supply systems for space discharge lamps. STURDY ELECTRIC CO., Ltd., LARK, G. T. K., and DAVIE, R. B. Aug. 23, 1946, No. 25309. [Classes 38 (ii) and 38 (iv)] A choke coil 1 comprises one or more windings 1a, 1b of rectangular or other cross-section of greater width than height and an inner core 2 of straight laminations with a casing 3 of sheet magnetic material surrounding the winding, such as the steel trough of a reflector for a discharge lamp or a shallow casing of similar shape mounted on top thereof. The winding(s) may extend beyond one end of the core to form an air gap in the magnetic circuit and the casing 3 may contain components associated with the choke, such as an auto-transformer 4, condensers 5 and 6 and a vibrator 7, the remaining space being filled with an insulating compound. The casing may be divided into compartments by transverse partitions of magnetic material; these may be placed close to the ends of the choke winding(s) to provide a magnetic path to the sides of the case. Terminal blocks 8 and 9 may be fitted on the casing.
Patent GB-1273414-A (GB)
Title: A hand-knitting machine
IPC: D04B39/00
Filed: 1969-05-19
Abstract: 1,273,414. Knitting-machines. AOYAMA LABORATORIES Ltd. 19 May, 1969 [20 May, 1968], No. 25324/69. Heading D1C. A hand knitting machine has means for moving the latches of inactive needles N1 into the path of a device which ensures the needles do not take yarn. The cam carriage has two knitting tracks for needles N 2 , N 3 , with corresponding yarn feeders 2, 3 as well as an advanced non-knitting track. All the needle latches are raised to a vertical position by a magnet or magnets either side of the feeders or by a spring (12 Fig. 9 not shown) in the latch groove acting against the profiled pivoted end of the latch. A cam surface 5 along the front of the feeders is profiled to engage the latches of all inactive needles and close them. Alternatively separate latch closing members may be fixed to the carriage either side of the feeders.
Patent GB-169616-A (GB)
Title: Improvements in fountain pens
IPC: B43K5/04
Filed: 1920-09-02
Abstract: 169,616. Cavaille, J. M. Sept. 2, 1920. Reservoir pens.-In a selffilling reservoir pen of the elastic-sac type, the compressor plate, stamped out in one piece, is pivoted to the barrel and is operated to compress and release the reservoir by means of a rotatable collar mounted externally at or near the centre of the barrel. The reservoir is packed with pressed hair, which may contain ink residue, the pen then being filled with water. In the form shown, the compressor plate c is stamped out integral with a curved lug d notched at d<1> and projecting through a slot in the pen barrel a, and the rotatable collar e has an opening f with a bevelled top g which engages the lug d and so pivots the plate c about the slot. The plate c is curved to fit the interior of the barrel a and the width of the plate c together with that of the compressed reservoir is equal to the internal diameter of the barrel, so ensuring full compression of the reservoir.
Patent GB-938365-A (GB)
Title: Method of making printed circuits
IPC: H01C/
Filed: 1959-07-24
Abstract: Exemplified viscous adhesive compositions which are applied to insulating bases prior to deposition of metal coatings thereon in the production of printed circuits (see Group II) comprise (1) and (2) phenol-formaldehyde, polyvinyl butyral, powdered cuprous oxide or zinc dust, powdered silica, diethyl carbonate and ethanol; and (3) epoxy modified phenol-aldehyde, butadiene-acrylonitrile, aluminium powder, hexamethylene tetramine, diethyl carbonate and diacetone alcohol.  Specifications 674,630, 924,049 and U.S.A. Specifications 2,534,374 and 2,758,953 are referred to.ALSO:In a process of forming a printed circuit, selected areas of an insulating base are coated with a viscous liquid composition containing an adhesive component and particles which act as such, or after activation, as sites for the decomposition of, and deposition of metal from, a currentless metal deposition bath, and the base then immersed in such a bath to deposit metal on the said selected areas.  The insulating base may be of ceramic, rubber, phenol-formaldehyde impregnated material, melamine-urea, vinyl acetate-chloride copolymer, cellulose acetate, epoxy resin, glass cloth or epoxy-coated glass.  Specified viscous liquid compositions contain phenolformaldehyde or phenol-aldehyde/epoxy resin together with polyvinyl butyral or butadiene acrylonitrile; alternatively, they may be based on cellulose acetate lacquer or gum arabic.  Specified active particles are of titanium, aluminium, copper, iron, cobalt, zinc, titanium oxide, copper oxides, stannous chloride, stannous fluoroborate, stannous sulphate or titanium trichloride.  Particles which may be activated (successively in stannous chloride and titanium chloride) are of silica, clay, alumina or wood flour.  Metals which may be currentlessly deposited are copper, nickel, silver and rhodium.  A suitable bath contains copper sulphate, sodium hydroxide, Rochelle salts and formaldehyde.  After the metal is deposited, the structure may be heated and the circuit then built up e.g. with silver and rhodium by electrodeposition, or by immersion in molten metal or alloy.  Specifications 674,630, 924,049 and U.S.A.  Specifications 2,534,374 and 2,758,953 are referred to.
Patent GB-241886-A (GB)
Title: Improvements relating to devices for drilling or chiselling stone
IPC: E21B17/07
Filed: 1925-10-13
Abstract: 241,886. L÷wenstein, Karl, Prinz zu. Oct. 24, 1924, [Convention date]. Percussive drills.-In a percussive drill operating by hydraulic action, both plungers d, d<1> project into the liquid column and are packed by rubber or like tubular sheaths b, b<1>, so that the blow is transmitted without loss. The ends of the sheaths are held by screw plugs as shown, in such a manner that no free movement of the sheaths can occur.
Patent GB-1120222-A (GB)
Title: Improvements in or relating to textile carding machines
Inventor: VARGA ANDRE
IPC: D01G15/46
Filed: 1964-06-22
Abstract: The apparatus of Specification 941,843 which removes the web from the doffer 1, of a carding machine and comprises a series of stripping rolls of which the first, 3, is a card clothed and the last 5 is bare, is modified in that an intermediate, re-directing roll 4 is driven with a surface speed slower, e.g. 1 DEG  or more, than that of the first stripping roll 3.  The bare roll 5 may co-operate with a roll 6 to provide a trash crushing nip or it may be relatively adjustable with respect to and spaced from (e.g. 0.004 inches) a second roll to provide a web control arrangement. The speed of rolls 5, 6 may be such that draft is applied to the web.
Patent GB-204884-A (GB)
Title: A collapsible seat for carrying children
IPC: A47D13/02
Filed: 1922-09-22
Abstract: 204,884. Owen, H. B. Sept. 22, 1922. Folding and collapsable seats.-A child's seat, adapted to be carried by handles 13, has a hinged collapsable frame 1, 2, 3, 4. Two members, preferably the front and back members 2, 4, are hinged so that all the parts of the frame, when folded, lie parallel. The members 2, 4 are retained in the extended position by catches 12. A seat 8 of canvas or other flexible material is suspended from the frame and has closed back and sides and an open front and a stiffener 10 passed through a hem in the front edge. Specification 160,784 is referred to.
Patent GB-642875-A (GB)
Title: Improvements relating to the mounting of sewing machines in cabinets
IPC: D05B75/06
Filed: 1948-10-04
Abstract: 642,875. Sewing-machine cabinets. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Oct. 4, 1948, No. 25745. [Classes 52 (i) and 52 (iii)] The top of a sewing-machine cabinet has an aperture accommodating a rectangular cradle C to receive the base of a portable sewing-machine M. When the machine is to be used on the cabinet one end of the base is fitted on pins 11 b at one end of the cradle and the opposite end slides down a cam surface 20 on the cradle to urge the base towards the pins, a spring latch 24 securing the base when fully lowered. The cradle is carried on rear hinges 15 and supported at the front by abutments on a hinged flap 5 forming part of the cabinet top. Displacement of the flap allows the cradle and machine to be lowered into the cabinet for storage.
Patent GB-988049-A (GB)
Title: Method of producing pre-stressed glass
IPC: C03B27/02
Filed: 1961-07-17
Abstract: Glass is pre-stressed by quenching the hot glass sheet in a cooling liquid which has been heated approximately to its boiling point, the liquid being selected by the value of its heat of vaporization.  In the quenching process a gaseous envelope is formed between the glass and liquid which prevents abrupt cooling. The suitability of the quenching medium is determined by the duration of the gaseous phase itself dependent on the heat of vaporization of the quenching liquid. For glasses having a coefficient of expansion 30 x 10-7 liquids containing OH groups and having a heat of vaporization less than 200 cal./g., e.g. propanol, may be used, or for glasses with a coefficient of expansion less than 100 x 10-7 pertanol having a heat of vaporization of 150 cal./g. may be used.  The particle size of fragmentation of the glass depends on the cooling liquid used. For fine particle size, liquids having a relatively higher heat of vaporization are used than for glasses fragmenting with a coarse particle size. Several suitable liquids given in the Specification include CCl4, C2Cl4, CHCl3, C6H5Cl, C6H4Cl2, C6H6, C5H11OH, (CH3)3COH, iso-C3H, OH. The gaseous phase may be prolonged by adding sodium dioctyl sulphosuccinate to the liquid and by having mechanical heating means in the cooling bath.
Patent GB-870225-A (GB)
Title: Improvements in or relating to means for holding babies or other living beings during exposure to x-rays
IPC: A61B6/04
Filed: 1958-08-12
Abstract: 870,225. Preventing movement of patients. GUNTHER, G. A. Aug. 12, 1958, No. 25831/58. Class 81 (2). [Also in Group XX] A mould of thermoplastic or other material permeable to X-rays is provided with an openshaped recess for receiving the body and four limbs of a living creature and straps of X-ray permeable material which extend across the open side of the mould attach the mould to a support. As shown in Fig. 3, the mould 1 is held on a rigid support 17 by elastic straps 10 having adjustment devices 14 secured to hooks 13. which engage in the grooved margins 15 of the support. Alternatively (Fig. 4), the mould is provided with an apron 18 which is tied in position by tapes 19 and is suspended from hooks (not shown) by the loops of straps 22 which pass vertically around the mould.