baber/WOPTO huggingface dataset:
Patent GB-860687-A (GB)
Title: Improvements relating to high frequency alternators
IPC: H02K19/24
Filed: 1957-10-11
Abstract: 860,687. Inductor alternators. PENSABENE, N. Oct. 13, 1958 [Oct. 11, 1957], No. 31836/57. Class 35. In order that the pitch of the inductor teeth of an inductor alternator may be made equal to the pitch of the winding slots instead of double this pitch to span a complete coil pitch as is usual, the coils are wound with their alternate sides taken through slots at either end (instead of the same end) of the stator stack in toroidal fashion. In the radial form shown, the stator winding W is wound in staggered slots S1, S2 at either end of a cylindrical stack B. Inductor teeth P1, P2 of the rotor 5 are excited by fixed coil C, and as can be seen in Fig. 2 are of equal pitch with the stator slots. Magnetization of the stator core by its toroidal winding is prevented by using an even number of groups of stator slots which are alternately displaced half a tooth pitch so that the current in alternate groups flows in the reverse sense. The armature slots may be bridged by a plate. A cylindrical type of machine, otherwise identical, is described.
Patent GB-883923-A (GB)
Title: Improvements in control systems for d.c. motors
IPC: H02P7/30
Filed: 1959-09-18
Abstract: 883,923. Automatic speed-control systems. GENERAL ELECTRIC CO. Sept. 18, 1959 [Sept. 22, 1958], No. 31856/59. Class 38 (4). [Also in Group XXXVII] A D.C. motor is supplied from A.C. terminals 6, 14 through a half-wave rectifier 13 and saturable reactor 11 a portion of whose winding 9 is connected across the armature of the motor through rheostat 17. During a negative half-cycle of the applied A.C. when the rectifier 13 blocks the flow of current, the back-electromotive force of the motor develops a magnetomotive force in the core of the reactor which is opposite to that produced by the load current. As a result, the period during which current is delivered to the armature during the subsequent half-cycle of the applied voltage varies inversely with the speed of the motor. In another arrangement, the reactor has a separate control winding connected across the armature of the motor, and the motor field winding is connected across the A.C. terminals in series with a rectifier which is poled to conduct on negative half-cycles. A shunt rectifier permits the flow of current through the field winding during positive halfcycles of the applied voltage, Fig. 2 (not shown). The rectifier in series with the field winding may also be, included in circuit with the control winding of the reactor for limiting the currentflow therethrough during the negative halfcycles and for stopping the current flow during the positive half-cycles. This enables the motor to be operated in the low speed-ranges. The field winding of the motor may be shunted by a tapped resistor from which is derived a voltage which is added to the back-electromotive force of the motor for application to the control winding of the reactor, Figs. 3, 4 (not shown). The reactor may be provided with a reference winding in opposition to the control winding energized in accordance with the armature voltage, and in series with a diode which conducts during negative half-cycles of the applied voltage. A transistor in series with the control winding of the reactor may be controlled in accordance with the armature voltage which is applied between the base and emitter electrodes, Figs. 5, 6 (not shown).
Patent GB-651454-A (GB)
Title: Improvements in devices for cleaning water-closet basins or the like
IPC: E03C1/302
Filed: 1946-10-28
Abstract: 651,454. Pads etc.; squeegees. ADAMS, G. S. Oct. 28, 1946, Nos. 31908 and 31909. Convention dates, Dec. 15, 1945 and April, 8, 1946. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 30, 1947]. [ Class 19] A cleaning pad or squeegee consists of a number of flat paper &c. sheets placed face to face and glued, e.g. by a soluble glue over the major part of their contacting faces to form a substantially rigid pad 110 adapted to be clamped in a holder (see Specification 651,508), at a zone spaced from the cleaning edge of the pad. Each sheet is preferably formed with incisions 114 and a recess 116 which permits its retention in the holder. In a modification, the pad is composed of at least one sheet 210 of corrugated paper or cardboard and at least two sheets of paper &c. The pad is cut from sheets of corrugated cardboard having the required number of layers, the side 226 of one pad being cut at the same time as the recess 224 of the second pad.
Patent GB-228311-A (GB)
Title: An improved screen for protecting the eyes of wearer against wind and/or rain
IPC: A61F9/02
Filed: 1923-12-20
Abstract: 228,311. Deacon, F. Dec. 20, 1923. Goggles.-Eye shields are composed of a flat piece of transparent, flexible material, such as celluloid having two opposite vertical edges at its upper part and a V-shaped lower edge, provided with a single band or strip permanently secured at its ends to the vertical sides and designed to pass round the wearer's head.
Patent GB-1315878-A (GB)
Title: Tubular electronic reactor component having an embedded electrode
IPC: H03H5/02
Filed: 1971-07-07
Abstract: 1315878 Capacitors; inductors PHASE INDUSTRIES Inc 7 July 1971 [17 July 1970] 31969/71 Headings H1M and HIT A reactive component, e.g. a capacitor, comprises a tubular metallic electrode 54 wound in a single turn spiral and embedded in an homogeneous tubular dielectric body 50. A bushing 22 which is soldered to a metallic band 30 carried by the body 50 has a threaded bore 58 engaging a threaded stud 56. A plug 55 secured to the stud 56 is force fitted into a metallic piston 28 which is thereby axially adjustable within the body 50 to vary the capacitance. A metallic end cap 62 is electrically connected to the electrode 54 and to a metallic band 34 which carries a terminal 35. A second terminal 65 is soldered to the bushing 22. The electrode 54 may extend the full length of the body 50 and a metal strip may be helically wound on and bonded to the body 50 to form an inductor. The manufacture of such a capacitor comprises wrapping a rectangular dielectric sheet 70, for example of vitreous material, ceramic, glass or thermoplastic which has applied to it a metallic, e.g. silver or gold, film 54<SP>1</SP> on a cylindrical mandrel and firing to integrate the several turns of the sheet 70.
Patent GB-800653-A (GB)
Title: Improvements in or relating to cathode ray tube display devices
Inventor: HALLAM TERENCE WALTER
IPC: G01S7/06
Filed: 1955-11-09
Abstract: 800,653. Cathode-ray tube displays. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 5, 1956 (Nov. 9, 1955], No. 32020/55. Class 40 (7). A marine radar cathode-ray tube display device comprises a cathode-ray tube 1, a colour filter 4 positioned over the screen 2 thereof, a transparent plotting sheet 5 positioned over the filter 4 and separated therefrom by a small air space, and means for edge lighting the plotting sheet. As shown, the filter 4 is mounted on the screen side of a transparent carrier 3 and the plotting sheet 5 is fixed to and spaced from the carrier 3 by a peripheral spacer 6 which is substantially water-vapour tight. A peripheral layer of black paint 7, Fig. 2, is applied to the underside of the plotting sheet 5 and the sheet 5 extends beyond the carrier 3 and the paint 7, the edge of the sheet being cut obliquely, e.g. at 45 degrees, to increase the effectiveness of the edge lighting as provided by a lamp 8. If the screen 2 emits amber light, the filter 4 should pass amber light only and the ambient illumination should be white minus amber.
Patent GB-1464509-A (GB)
Title: Esters of steroid 21-ols
IPC: C07J41/00
Filed: 1975-07-31
Abstract: 1464509 Esters of steroid 21-ols with 4-N- acetylaminomethylcyclohexane carboxylic acid RORER ITALIANA SpA 31 July 1975 [1 Aug 1974] 32098/75 Headings C2U and C2C Novel steroid 21-esters have the formula wherein St is a steroid group of the pregnane, pregnene or pregnadiene series, the ester linkage being at position 21 of the steroid group. They are prepared from the free 21-ols and 4-N- acetylaminomethyl-cyclohexanecarboxylic acid chloride. The novel esters are anti-inflammatory steroids and they are made up into pharmaceutical compositions with suitable carriers. 4 - AT - Acetylaminomethylcyclohexanecarboxylic acid is prepared from the corresponding free amine and acetic anhydride and is converted to the acid chloride by the action of SOCl 2 .
Patent GB-639282-A (GB)
Title: Improvements in or relating to electrical measuring apparatus
Inventor: CANNON JAMES ROWAN
IPC: H04J1/16
Filed: 1947-12-05
Abstract: 639,282. Telephone and like transmissions measurements ; impedance measurements. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Dec. 5, 1947, No. 32103. [Class 37] To measure the modulus of an impedance X, Fig. 1, A.C. is applied to two branches AB, CD, comprising impedances Z1, Z2 whose ratio is known, a calibrated variable impedance R and the unknown impedance X, and the voltages across Z1, Z2 are applied to a cathode-ray tube SD to produce two traces in juxtaposition and R is varied until the traces are of equal amplitude ; the modulus of X is then known in terms of R and the ratio Z1 : Z2. Preferably the components are screened to the earth line of the apparatus to avoid stray capacities, Fig. 2 (not shown). To compare two impedances, Z3, Z4, Fig. 3, in terms of their return loss [defined as 20 log10(Z3+Z4)/(Z3 - Z4)], the impedances are fed in parallel from OSC over transformer windings b, c of a transformer TRA whose output Va is thus the difference of the currents flowing through Z3, Z4, while a transformer TRB supplies a current Vf proportional to the sum of the currents flowing through Z3, Z4 ; an attenuator VA is calibrated in terms of return loss and is adjusted until the juxtaposed traces of Va and Vf on the cathode-ray tube SD are equal. In a modification for balanced impedances Z5, Z6, Fig. 4, an oscillator OSC feeds the two impedances in parallel, transformer TRD supplying the difference current and transformer TRE supplying the sum current. Z5 is the standard impedance while Z6 may be a balanced transmission line or the input or output impedance of the component to be tested. The cathoderay tube SD is as described in Specification 569,279.
Patent GB-850462-A (GB)
Title: Drive control mechanism for rotary tools
Inventor: BONGIOVANNI JOHN CHARLES
IPC: F15B21/08
Filed: 1957-02-15
Abstract: 850,462. Power-driven rotary brushing mechanisms. OSBORN MANUFACTURING CO. Feb. 15, 1957, No. 32191/57. Divided out of 850,461. Class 69 (2). A power-driven mechanism having one or more rotary tools, in which a reversible fluid motor drives each tool, has automatic electrical means for reducing the speed of the motors prior to reversing them. A tank 83, motor 86, and pump 84 provide line 87 with pressure fluid. Valve 91 can connect line 87 with either side of the motor 49 and the other side to tank 83 via a normally open valve 93, or can connect line 87 with tank 83 via valve 93. Valve 94 allows fluid to escape to exhaust whenever the pressure in line 87 exceeds a predetermined limit. Valve 97 controls the rate of flow in line 87 and hence the speed of the motor 49. When the pump 84 is started, valve 91 connects line 87 to exhaust, but a manually actuated contact is closed, causing valve 91 to connect line 87 with line 89, and line 90 with line 92 and hence causing motor 49 to be driven in one direction. After a certain period a time delay relay sets in motion the reversal of motor 49, by closing valve 93, hence throttling the fluid outgoing from the motor and braking it, opening valve 94 and bringing into action valve 96, which lets fluid in line 87 escape to exhaust, keeping just enough pressure in the line 87 to maintain a fluid head at the inlet 50 to the motor 49. A further time delay relay is timed to connect together lines 87, 89, 90, 92 just before the motor 49 stops rotating, so that the pressure is the same on both sides of the motor. The first relay is then actuated again and the lines 87 and 92 are connected to lines 90 and 89 respectively, valve 96 is closed, valve 94 brought back into action and valve 93 opened, hence initiating a period of rotation of the motor 49 in the opposite direction.
Patent GB-422873-A (GB)
Title: Improvements in or relating to reels for fishing rods
IPC: A01K89/016
Filed: 1933-11-20
Abstract: 422,873. Fishing. FARLOW & CO., Ltd., C., and FARLOW, C. F., 11, Panton Street, Haymarket, London. Nov. 20, 1933, No. 32255. [Class 48] The spring pressure of a fishing reel check pawl e, is regulated by a sliding wedge i. A screwed stud j on the wedge passes through a slot k in the casing and the wedge is held in any desired position by a nut l.
Patent GB-1508550-A (GB)
Title: Electric switch
IPC: A01D69/02
Filed: 1976-08-03
Abstract: 1508550 Switch actuator BLACK & DECKER MFG CO 3 Aug 1976 [25 Aug 1975] 32272/76 Heading H1N A lever 38 Fig. 3 for actuating the electric switch 32 controlling a power tool is received within a housing 42 when in the off position whereby a means must be provided for removing the lever 38 from the housing 42 in order to operate the switch 32. In the Example shown the housing 42 has aperture 44 to provide access for the operator's fingers to be inserted behind the lever 38 to remove it from the housing 42 whereby it may be moved upwards towards a frame part 26 to a position at which it may be gripped by the operator's hand. In a modification a slider (155) Fig. 9 (not shown) may be provided on the housing (142) whereby the handle (38) may be pushed out of the housing (142).
Patent GB-156408-A (GB)
Title: Improvements in and relating to electrically operated mechanism suitable for drivingclockwork trains or the like
IPC: G04C3/06
Filed: 1919-12-24
Abstract: 156,408. Holden, F. Dec. 24, 1919. Addition to 118,329. Electric clocks.-A flat circular coil 7 oscillating between the pole-pieces 5, 6, of permanent magnets 1. 2, and a modified form of contact-device 14, 15 are used in electricallyoperated mechanism for driving clockwork trains &c., of the kind described in the parent Specification. The permanent magnets 1, 2 are connected at one end by a softiron support 3 and at the other end by a non- magnetic support 4. The coil 7 is carried by an arm 10 secured to a spindle 9 mounted in bearings in the magnet 2 and in an insulated brass plate 8; the spindle also carries a pair of counterweighted arms 11. The oscillation of the spindle 9 is controlled by a. spring 12, and the spindle carries at its upper end a contact 13 provided with an engaging surface 14 of silver &c. A cooperating contact 15 is secured to a pivoted bar 16 having a flattened side against which bears a leaf spring 17 tending to hold the contact in its zero position. The contacts 14, 15 come into engagement when the coil 7 enters the space between the pole-pieces, and the engagement is maintained by the pressure of the spring 17 until the coil is practically concentric with the polepieces, at which point the contact is broken and contact 15 is returned quickly to its zero position. During the return movement of the coil, owing to the shape of the contact 15, the duration of engagement between the two contacts is very short. The contact 13 is insulated from the spindle 9 and is electrically connected by a conductor 19 to one end of the coil 7, the other end of which is connected to the arm 10. A battery (not shown) is connected between the plates, 1, 8.
Patent GB-887245-A (GB)
Title: Improved olefin polymerization process, catalyst composition therefor, and polymers so produced
IPC: C08F10/00
Filed: 1959-09-23
Abstract: C3-6 1-alkenes (with no branching in the 2-position), styrene and alkylstyrenes are polymerized with a catalyst comprising (A) the product of reacting (a) a halide of a Group IV, VA, VIA or VIII metal in its higher valence state, (b) a metal of the same Groups and (c) a Group III metal halide, and (B) a member selected from (a) Group I, II and III metal hydrides and organo-compounds and alkali-metal hydride, -alkyl or -aryl complexes of such Group II and III compounds, and (b) compounds of formula RmMXn, wherein R is an acyclic, saturated cyclic, or aromatic hydrocarbon radical, M is a Group II or III metal, X is halogen, m and n are integers, their sum being equal to the valency of M.  The definition of "R" applies also to the organic radicals in the said organo-compounds.  In examples, propylene was polymerized using a catalyst comprising (A) TiCl4-Tli-AlCl3 reaction product and (B) (i-Bu)3Al.  Lists of other suitable monomers and catalyst p  components are provided.  Reference has been directed by the Comptroller to Specification 847,661.
Patent GB-967806-A (GB)
Title: Combined epicyclic gear and lever system
IPC: F16H37/12
Filed: 1961-09-09
Abstract: 967,806. Load handling machines. H. HEATON. Sept. 9, 1961, No. 32431/61. Addition to 953,081. Heading B8H. [Also in Division F2] In epicyclic gearing for converting a small angular movement of an arm 14 about a spindle 13 into a large angular movement of the spindle 13 itself, e.g. for lifting through 180 degrees a load L carried by arms on the spindle ends, the chain gearing of the parent Specification is replaced by toothed gearing. The arm 14 is bifurcated and carries two diametrically-opposite planet pinions 29, 291 rolling on a fixed sun gear 12, the rotation of the pinions being conveyed to respective outer spindles 23, 231 by spur gearing. The bifurcated arm 14 carries on each side parallel plates 40, 41 having trains of spur gearing coupling the spindles 23, 231 to output gears 58 fast on the spindle 13.
Patent GB-1516165-A (GB)
Title: Air-cushion vehicles
IPC: B60V1/16
Filed: 1975-08-04
Abstract: 1516165 Air cushion vehicles BERTIN & CIE and SOC D'ETUDES ET DE DEVELOPPEMENT DES AEROGLISSEURS MARINS TERRESTRES ET AMPHIBIES 4 Aug 1975 [5 Aug 1974] 32464/75 Heading B7K In an air cushion vehicle having a skirt formation as disclosed in Specification No. 1,287,487 wherein an inner skirt composed of looped segments Li 1 -Li 6  &c. encloses a main cushion space which is surrounded by further contiguous cushion compartments formed by an outer skirt composed of looped segments Le1- Le6 &c., the side walls of the skirt segments are formed with lower edges Bia which extend horizontally, all in the same plane for each skirt. The distinction over the prior art is shown in Fig. 5 by the additional shaded area La. The outer cushion compartments may enclose truncated fabric cones.
Patent GB-839960-A (GB)
Title: Flange connected well head apparatus
IPC: E21B33/047
Filed: 1957-10-17
Abstract: 839,960. Wells. BUTLER, G. A. Oct. 17, 1957 [July 26, 1957], No. 32497/57. Class 85 A completion for a parallel bore dual well has an adapter 70 permitting auxiliary equipment 83 to be connected with one or other of the bores, the adapter comprising a flange 71 connectible to the completion in two positions spaced at 180 degrees, a connecting bore 76 and a flange 77 connectible to the equipment. Tubing 11, 12 is supported by a hanger device 16, according to Specification 839,959, in a tubing head 10 mounted on a casing head (not shown). A valve assembly 20, according to Specification 829,293 and having valve chambers 35, 38, is mounted on the tubing head and has its bores 25, 26 respectively connected to the tubing 11, 12. In the position of the adapter shown the bore 26 is connected to the equipment, and the bore 25 is connected to a sampling or testing tube 106, but in the other position of the adapter the bore 25 is connected to the equipment and the bore 26 is connected to the tube 106. The equipment, which may be a " lubricator," may be replaced by a plate blanking-off the bore 76.
Patent GB-1106536-A (GB)
Title: Peptides with anti-shock activity and a method of preparing same
Inventor: CORT JOSEPH HENAY
IPC: C07K5/103
Filed: 1965-07-30
Abstract: Cyclic peptides of the formula <FORM:1106536/C2/1> (wherein X is H, CH3, C2H5, OH or OCH3, Y is an aliphatic hydrocarbon chain of 2-5 C having a basic group in the o -position and R is an acyl residue comprising a peptide chain of 2-4 glycine or L-a -amino acid residues, at least one of which is glycine) are prepared by reducing a peptide of the general formula <FORM:1106536/C2/2> (where Z1 is a protective group for an -NH2 residue, Z3 and Z4 are protective groups for an -SH residue and Z2 is a protective group for the basic group on Y) to remove Z1-Z4 and oxidizing the free peptide in aqueous solution.  CBO - R - Cys(Bz) - Tyr - Phe - Glu(NH2)-Asp(NH2) - Cys(Bz) - Pro - Lys(Tos) - GlyNH2; and CBO - R - Cys - Tyr - OEt and -NHNH2 (where R is -Leu-Gly-Gly-, -Gly-Gly-, or -Gly-Gly - Gly-; CBO - Gly - Gly - Cys(Bz) - Phe-Phe - Glu(NH2) Asp(NH2 - Cys(Bz) - Pro - Lys-(Tos) -Gly - NH2 and CBO - Gly - Gly - Cys-(Bz)Phe - OEt and -NHNH2 are prepared as intermediates.
Patent GB-1242828-A (GB)
Title: Refrigeration apparatus
IPC: F25B1/053
Filed: 1970-07-06
Abstract: 1,242,828. Refrigerating. WESTINGHOUSE ELECTRIC CORP. 6 July, 1970, No. 32656/70. Heading F4H. The motor 20 driving the compressor 13 of a refrigeration system is cooled by liquid refrigerant from the condenser 15 which is supplied to the motor through a line 21 and remains in the liquid state in the motor and a line 24 until junction with the remainder of the refrigerant from the compressor prior to entry to the evaporator 10, the liquid refrigerant in the motor cooling circuit being at the same pressure as the refrigerant passing directly to the evaporator through an expansion control valve 17. The line 21 may contain a restriction 26 to predetermine that the refrigerant remains in the liquid phase in the motor 20 and at the correct discharge pressure, or the same effect may be achieved by utilizing proportional sizes of lines 21, 24 and passages within the motor 20.
Patent GB-1494414-A (GB)
Title: Process for separating citrate or citric acid in aqueous solutions
IPC: C12P7/48
Filed: 1975-08-06
Abstract: 1494414 Citric acid separation JOH A BENCKISER GmbH 6 Aug 1975 [25 Oct 1974] 32839/75 Heading C2C [Also in Divisions B1 and B5] In a hyperfiltration process for the separation of (iso)citric acid and (iso)citrates from organic compounds and inorganic salts in aqueous solution, one or more selectively permeable membranes of a material containing acid groups and a melting capacity of 5-25% by volume or basic groups and a melting capacity of 3-15% by volume, used in pH range 1 to 8 and a pressure range 5-100 bar is used. Membrane material with acid groups are used at pH 5À5 to 7À5 and 30-100 bar whereby (iso)- citrate is held back and other substances permeate, and at pH <3 at 5-50 bar whereby (iso)citrate preferentially permeates and other substances are held back, whereas membrane material with basic groups used at pH <3 and pressures 30-100 bar holds back (iso)citric acid and other substances permeate. The solution may be passed through one or more membranes with acidic groups and also through a membrane with basic groups. The solutions to be treated may be the products of a fermentation process which have been pre-treated with ultrafiltration, and the pH adjusted by a polyvinylsulphonic acid. Membranes suitable for the process are polyimides and polyamides suitably substituted by diamines or acids, copolymers of styrene, acylonitrile, acrylic, itaconic, and vinylsulphonic acids, vinyl pyridine, butadiene and aromatic polysulphones. Examples describe the preparation of vinylsulphonic acidacrylonitrile copolymer; sulphonated polyimide; sulphonated styrene - butadiene copolymer; vinylsulphonio acid - acrylonitrile copolymer; carboxylated polyimide; sulphonated polysulphone; 2 - vinylpyridine/1,3 - butadiene; aminated polyimide and polyvinylsulphuric acid and the use of membranes therefrom for the separation of citric acid and citrates.