baber/WOPTO huggingface dataset:
Patent GB-766325-A (GB)
Title: Penicillin salts of esters of 4-aminosalicylic acids
IPC: C07D499/00
Filed: 1951-09-18
Abstract: The invention relates to penicillin salts of (a) an ester having the general formula <FORM:0766325/IV(b)/1> in which X is a bivalent saturated aliphatic hydrocarbon radical containing from 3-12C atoms, and (1) R1, R2, R3 and R4 are hydrogen, 1 to 10C alkyl, or aryl of up to 10C atoms, or (2) R3 and R4 are as in (1) and -N(R1)(R2 is a heterocyclic ring; (b) an ester of general formula <FORM:0766325/IV(b)/2> in which (1) R1 and R2 are hydrogen, an alkyl group containing 1 or 3 to 10C atoms, or aryl of up to 10C atoms and R3 and R4 are hydrogen, 1 to 10C alkyl or aryl of up to 10C atoms; or (2) R1 is ethyl, R2 is hydrogen, an aryl of up to 10C atoms, or an alkyl containing 1 or from 3 to 10C atoms and R3 and R4 are hydrogen, 1 to 10C alkyl or aryl of up to 10C atoms; or (3) the radical -N(R1)(R2) is heterocyclic ring other than the piperidino ring, and R3 and R4 are hydrogen, 1 to 10C alkyl or aryl of up to 10C atoms; or (4) the radical -N(R1)(R2) is the piperidino ring and R3 and R4 are 1 to 10C alkyl or aryl of up to 10C atom, or R3 is hydrogen and R4 is an aryl group containing not more than 10C atoms or an alkyl group containing from 5 to 10C atoms; or (5) R1 and R2 are both ethyl groups and R3 and R4 are 1 to 10C alkyl or aryl of up to 10C atoms. The salts are prepared by reacting penicillin with the appropriate ester in the presence of a solvent.  The penicillin is the free acid, or a salt such as sodium or potassium penicillin and may be any penicillin, especially G, F, dihydro F or K.  The ester is the free base, or a salt with an organic or inorganic acid, e.g. hydrochloric acid, or the N-oxide or N-hydrated oxide.  Mixtures of esters and/or penicillins may be reacted.  Specified solvents are water, hydrocarbons, e.g. hexane and benzene, halogenated hydrocarbons, e.g. chloroform and secondary butyl chloride; alcohols, e.g. ethanol and isopropanol; esters, e.g. ethyl acetate and butyl acetate; ethers such as diethyl ether and diisopropyl ether; ketones, e.g. acetone and methyl ethyl ketone and mixtures thereof.  The salts may be used in the purification of penicillin from, e.g. organic solvent extract of fermentation broths.  Specifications 766,326 and 766,327 are referred to.
Patent GB-824441-A (GB)
Title: Improvements in or relating to safety control devices for welding tools
Inventor: HANCOCK CHARLES WILLIAM
IPC: B23K9/10
Filed: 1957-07-11
Abstract: 824,441. Safety control devices for arc welding systems. WAGON REPAIRS Ltd. July 8, 1958 [July 11, 1957], No. 21987/57. Class 38 (4). A safety device for an arc-welding system comprises a relay D energized by the manual operation of a switch G in an electrode holder A1 from a transformer E and a rectifier F, the relay D being maintained energized in response to the current flowing in the welding arc between the electrode A and the work C by means of a current transformer K in the main supply lead B and the rectifier F, time delay means, such as a dashpot D2 being associated with the relay D1 in order that the supply to the weld may be maintained during arc failures of predetermined short duration but which supply is disconnected if this duration is exceeded. The current transformer K may be replaced by an auxiliary relay and the main relay may be operated by alternating current, the rectifier F then being omitted.
Patent GB-247481-A (GB)
IPC: A61C19/02
Filed: 1925-09-04
Abstract: 247,481. Agussol, L. Feb. 11, 1025, [Convention date]. Fittings, internal; fittings, external.-A case for dental burrs or other dental instruments comprises a series of metal tubes e, f within which the burrs &c. are disposed, the tubes being secured at their lower ends to plates c, d which close the ends of the tubes and at their upper ends being secured in apertures in a plate b ; the plate d is arranged at a different height to the plate c to accommodate the shorter tubes f and has a foot d<2> which rests on the bottom of the case. Bosses i on the lid and bodv of the box form feet and bosses j on the sides facilitate lifting and opening the box.
Patent GB-1097279-A (GB)
Title: Heat stabilised liquids
IPC: C07F7/08
Filed: 1965-05-25
Abstract: Hydraulic fluids consist of (1) 95-99.9 wt. per cent of either a siloxane of general formula <FORM:1097279/C4-C5/1> where R is a hydrocarbon or halohydrocarbon radical free from aliphatic unsaturation, n is 1.8-3 and m is at least 2 or a polyester selected from esters of C5+ alkanoic acids and polyhydric alcohols containing at least two methylol radicals bonded to a quaternary carbon atom and esters of tertiary alkyl carbinols and dicarboxylic acids, (2) 0.05-3 wt. per cent of an amine antioxidant and (3) 0.05-3 wt. per cent of a compound of formula <FORM:1097279/C4-C5/2> or a compound of formula (Q3SiO)3SiH where Q is a C1-C6 alkyl or aryl radical, at least one Q being aryl, x is 0, 1, 2, 3 or 4 and R1 is C1-C3 alkyl, C1-C3 alkoxy, phenyl, tolyl, naphthyl, vinyl or a <FORM:1097279/C4-C5/3> radical, the ratio of (2) to (3) being from 1:2 to 2:1.  Amines specified are phenyl-alpha and beta-naphthylamine, phenothiazine, N-ethyl-1-naphthylamine, 1-naphthylamine and dioctyldiphenylamine.ALSO:Hydraulic fluids consist of (1) 95-99.9 weight per cent of a siloxane of general formula <FORM:1097279/C3/1> where R is a hydrocarbon or halohydrocarbon radical free fro aliphatic unsaturation, n is 1.8-3 and m is at least 2; (2) 0.05-3 weight per cent of an amine antioxidant; and (3) 0.05-3 weight per cent of a compound of formula <FORM:1097279/C3/2> or a compound of formula (Q3SiO)3SiH where A is a C1-C6 alkyl or aryl radical, at least one Q being aryl, x is 0, 1, 2, 3 or 4 and R1 is C1-C3 alkyl, C1-C3 alkoxy, phenyl, tolyl, naphthyl, vinyl or a <FORM:1097279/C3/3> radical, the ratio of (2) to (3) being from 1:2 to 2:1. Amines specified are phenyl-alpha and beta - naphethylamine, phenothiazine, Nethyl - 1 - naphthylamine, 1 - naphthylamine and dioctyldiphenylamine.
Patent GB-970228-A (GB)
Title: End turn support arrangement
Inventor: STEVENS ROBERT WARD
IPC: H02K3/50
Filed: 1963-06-04
Abstract: 970,228. Securing end-windings of dynamoelectric machines. GENERAL ELECTRIC CO. June 4, 1963, No. 22114/63. Heading H2A. Stator or rotor end-loops are secured against circumferential and radial displacement by supports secured to the core and situated inside and outside the end-loops, and initially flexible facings which are thermally hardened in contact with the conductors. As shown for a stator, the end loops are secured against outward movement by a series of insulating blocks bolted to the stack end-plate and making contact with the end-loops through insulating or metal rings 30. The inner surfaces of the end-loops are lined, during winding, with flexible insulating layers 36, 44, and the space between them is filled by wooden wedges 42. When all the turns are in place, the inner surface is faced with a flexible layer 46 secured by blocks 48 bolted in place. The flexible material is a polyester resin reinforced with chopped glass and an inorganic filler such as talc or silica, cured at 80‹ C. with a peroxide catalyst. It thus hardens in a shape conforming to the turn surfaces, and so prevents rotational movement. Further spacers may be suecured between the conductors by binding. A rotor would carry peripheral steel or glass tape binding.
Patent GB-225517-A (GB)
Title: Improvements relating to electric inductance coils for locating metals which are being carried away
IPC: G01V3/10
Filed: 1924-09-19
Abstract: 225,517. Geffcken, R. H. H., Richter, R. H., and Wetzel, Geb. Nov. 26, 1923, [Convention date]. Theft and like alarms. -An inductance coil for apparatus for locating metals which are being carried away by persons leaving factories &c. consists of not more than twenty turns 2 mounted rigidly on a frame 1 which is protected from vibrations so as to reduce variations in capacity. The turns 2 may be supported or tensioned by transverse rods 3 at intervals of about 25 cm. The tensioning may be effected by wires secured to the inner or outer surface of the frame 1. Alternatively the turns may be stiffened along their whole length, for example by placing the turns along their whole length on a wooden frame or other support or by embedding them in. asphalt, or by covering the turns with armouring or cotton, or by making the cross-section of the conductor large or of T-shaped section. In the case where the coil is in the form of a door frame through which persons are required to pass, a footboard may be placed through the frame and separated mechanically therefrom, lateral protecting flanges being provided.
Patent GB-812041-A (GB)
Title: Improvements in and relating to fluid conduit couplings
IPC: F16L37/252
Filed: 1957-07-12
Abstract: 812,041. Pipe couplings. BLACKBURN & GENERAL AIRCRAFT Ltd., EYRE, I. D., and TAYLOR, G. W. July 12, 1957, No. 22176/57. Class 99(1). Tubes 1, 8 are coupled by segmental flanges 12 on the tube 8 engaging recesses behind segmental parts 3 on the tube 1. The parts are coupled on rotation and locked in position by a sleeve 4 slidable on the tube 1 so that segmental fingers 6, 6<SP>1</SP>, 6<SP>2</SP> thereon enter the circumferential spaces betsween the parts 3, 12. The sleeve 4 may be provided with an external grip sleeve 13 of rubber which may be pulled back when the parts are to be uncoupled.
Patent GB-223210-A (GB)
Title: Improvements in and relating to multi-stage high pressure steam or gas turbines
IPC: F01D5/14
Filed: 1924-09-19
Abstract: 223,210. Erste Br³nner Maschinen- Fabriks-Ges. Oct. 9, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Axial-flow type.-In a multi-stage, high-pressure steam or gas turbine, compression losses are reduced by selecting the diameters of the rotor wheels, which increase either in groups b, c, d, Fig. 1, or gradually, Fig. 2, from the high-pressure part towards the lowpressure part, in such a manner that the value u<2>p does not exceed 120,000 in any of the rotor stages, where u is the peripheral speed of the rotor wheel in metres per second and p the specific gravity of the steam or gas.
Patent GB-598030-A (GB)
Title: A sound-insulating device for use on the human head
IPC: A61F11/14
Filed: 1945-08-29
Abstract: 598,030. Ear protectors. COBBE, H. N. G., [trading as MALLOCK-ARMSTRONG CO.], and HENERY, W. L. Aug. 29, 1945, No. 22252. [Class 81 (ii)] A sound-insulating device for the ears comprises two shells la connected by a resilient steel or cane frame 2, each shell containing a pad 4 of kapok, &c., and a ring 3 of sponge rubber, felt, &c. A linen or wool cover 17 is provided. The frame is resiliently coupled to the shells through rubber blocks 7, each bonded to a stem 8a connected to a shell, and to a stem 8 formed with collars 12 slotted to accommodate the end of the frame, and with a clamping nut 13. A crown pad 14 of sponge rubber or felt is provided. In a modified construction, each shell is formed of two pieces having radiating " spokes " terminating in peripheral rings, the two being arranged in spaced relation by a washer on stem 8a with the peripheral rings in contact with the spokes in each part obscuring the openings in the other, and the interspace between the two parts being filled with a mattress of kapok.
Patent GB-1462659-A (GB)
Title: Pneumatic hammers
IPC: B25D17/24
Filed: 1974-05-20
Abstract: 1462659 Pneumatic hammers VSES NI I PROEKT KONSTRUKT INST MEKHANIZ I RUCH STROIT-MONTAZH INSTRUMENT VIBRAT I STROIT OTDELOCH MASHIN 20 May 1974 22314/74 Heading B4C A pneumatic hammer comprises a housing 1 with a barrel 2 containing a hammer piston mounted therein, a handle 4 mounted on the housing; a first portion 9 of the barrel nearest the handle and a second larger portion 10, bush type sealing means 12, 13 mounted on said portion and sealing with the housing either directly or as by a sealing ring 20, a spring member 16 between the sealing means 12, 13 acting with compressed air spaces 14, 15 and guide means 23 between the barrel and housing to reduce vibration in the handle. A rubber-coated locking sleeve 39 is provided adjacent the tool and is locked by a leaf-spring 36 against rotation which would allow for removal of the tool.
Patent GB-281774-A (GB)
Title: Improvements relating to electric control devices
IPC: H02P1/40
Filed: 1926-09-10
Abstract: 281,774. British Thomson-Houston Co., Ltd., and Liddiard, H. W. C. Sept. 10,1926. Systems controlling travel for a fixed distance. -In. controlling an electric motor to move a weight or other member for any desired distance, as in the brake-operating mechanism described in Specification 268,621, [Class 103 (i), Brakes &c.], the required displacement is imparted by hand to a controller possessing two stepped contact segments 48, 49 co-operating with stationary studs 50, 51 which are connected through separate conductors to studs and sliders 62, 63. Movement of the controller in either direction from the full-line position of the diagram de-energizes one or the other of a pair of relay coils 56. 57, which act respectively to switch in the motor 28 for forward or reverse rotation through contacts 58, 59, and 61. When both relay coils are simnltaneously energized, the motor is cut-out of the circuit, this result being attained when the sliders 62, 63, which move with the motor driven weight, arrive on studs corresponding to these selected on the controller.
Patent GB-856535-A (GB)
Title: Improvements in flower-pots and seed-trays
IPC: A01G9/02
Filed: 1958-07-14
Abstract: 856,535. Plant pots. LACOSTE, L. July 13, 1959 [July 14, 1958], No. 22460/58. Class 6(2). A plant pot having a smooth exterior, a stepped interior and a drainage hole is moulded under heat and pressure from a mixture of wood sawdust and a synthetic resin, the latter being, for example, of the urea - formaldehyde type. The composition may alternatively be moulded to rectangular shape and be provided with a number of drainage apertures in the base, being then used as a seed tray.
Patent GB-1291347-A (GB)
Title: Improved silica sols
IPC: C01B33/145
Filed: 1970-05-08
Abstract: 1291347 Stabilized silica sols E I DU PONT DE NEMOURS & CO 8 May 1970 [8 May 1969] 22487/70 Heading C1A An aqueous silica sol of surface area 500- 1500 m.<SP>2</SP>/gram, containing up to 30 wt. per cent SiO 2 , and having mole ratio SiO 2 : alkali metal oxide greater than 5:1 is stabilized by a combination of (i) at least one non-aromatic organic compound which consists of C, H and O, contains at least two oxygenated atoms per molecule as -OH or ether groups and has water solubility of at least 1 wt. per cent at 25‹ C. and (ii) at least one water-soluble inorganic or organic monoacid base (K b >10<SP>-5</SP>) in an amount such that the pH of the sol is 10À0-11À5. Specified organic substances are sucrose, dextrose, levulose, glucose, ethylene glycol, glycerol and ethylene glycol dimethyl ether.
Patent GB-293593-A (GB)
Title: Improvements in india-rubber bathing caps
IPC: A42B1/12
Filed: 1927-08-29
Abstract: 293,593. Jones, F. C. Aug. 29, 1927. Caps; waterproof.-An indiarubber bathing cap of the flat core-moulded kind has the fold 1 transverse, i.e. extending in a direction from ear to ear. The ear flaps are integral with the back of the cap and disposed behind the crown fold. A strengthening and decorative rib 7 may be integrally moulded along the transverse fold. An adjustable chin strap is provided.
Patent GB-517549-A (GB)
Title: Improvements in berths, hammocks and the like for tents, huts, barracks and the like
IPC: E04H15/32
Filed: 1938-07-29
Abstract: 517,549. Hammocks. FUNARO, C. July 29, 1938, No. 22664. [Class 52 (ii)] Hammocks or berths. are suspended in. tents, huts, &c. by flexible suspension .means which, under load, form parabolic lines or curves. An arrangement is shown in which three hammocks, 5, 6, 7 formed from a continuous strip and an upper hammock 8 are suspended from a tent frame comprising members 2, 3, 4 and cables 19 . . . . 26 connected as shown. The side edges of the hammocks are provided with: fabricstrips 39;, 40 having curvedchannels 41, 42 through, which ropes - pass the ends of; the ropes together with intermediate portions being attached at 44, 45 to the said cables;. In: addition, the end hammocks have similar strips 46 with tubular channels through which pass ropes 47 attached at 48; In the case of separate ham- 'mocks the edges of the hammocks are provided with strips 14, 15 having curved channels 16 through which pass ropes 17 having attaching means such as 18 which in the tent frame are. attached to the cables as shown in Fig. 4. The upper. hammock 8 is afterwards attached by the hooks 18.
Patent GB-471578-A (GB)
Title: Improvements in or relating to locks for roller shutters, blinds and the like, and letter-boxes for use in conjunction therewith
IPC: E06B9/80
Filed: 1936-08-18
Abstract: 471,578. Locks for roller shutters. LAKE, H. P. Aug. 18, 1936, No. 22670. [Class 44] A lock for roller shutters &c. is externally shaped to form part of a lath 12, and comprises a bolt 19 adapted to be shot in the longitudinal direction of the lath into a recess 15 in the guide channel 14 of the shutter and to be held in position by a catch 29 which is releasable only by a key. The bolt may be forced towards the upper side 21 of the casing by a spring 20, and may be retracted by a spring 24 when the catch is released. The catch may carry a rack which is engaged by a pinion on the key, and may be forced into locking position by a spring 30. The bolt may have an operating knob 23 or a recess for engagement by a finger.
Patent GB-1514235-A (GB)
Title: Cathode ray tube distortion correction
IPC: H01J29/56
Filed: 1975-05-23
Abstract: 1514235 Cathode ray display tubes SONY CORP 23 May 1975 [23 May 1974] 22766/75 Heading H1D A multi-beam (e.g. three beams in-line) c.r.t. display tube includes a focusing electrode with at least two tubular electrodes at relatively high and low potentials respectively, the latter being of two portions G4alpha and G4b each with end plates 7, 8 and orthogonally orientated interfitting walls 13, 14, a correction voltage across the portions varying with the deflection angle of the or each beam to provide a uniform beam shape of the or each beam at the screen. Electric potentials, dimensional considerations and relationships are detailed and spherical aberration and astigmatism considered. Beam size variations across the screen are discussed w.r.t. Figs. 7 and 8 (not shown). Electrodes G3, G4 and G5 form a convergence unipotential type lens. Plates 4t1, 4t2, 4t1, 4t2, provide convergence.
Patent GB-743779-A (GB)
Title: Improvements in electric motor pump unit
IPC: F04D13/06
Filed: 1952-09-11
Abstract: 743,779. Cooling motors. McGRAW ELECTRIC CO. Sept. 11, 1952 [March 22, 1952], No. 22855/52. Class 35. A pump motor with the impeller on a projecting end of the rotor shaft has one fluid passed through a conduit in heat-exchanging relationship with the stator and then passed to the motor interior and through the motor bearings, the conduit being immersed in a second fluid. As shown, fluid being pumped traverses the coil 81 and is then passed into the rotor compartment bounded by the partition 62 fixed to the stator and completing the stator compartment containing fluid 68 different from that being pumped, e.g. askanel or a silicone oil. Part of the liquid pumped can also reach the vicinity of the bearings by passing between the back of the impeller 28 and the motor end cover 4 and can return to the pump compartment by ducts 35 in the impeller hub. The rotor laminµ may have an enclosure 69, 70 to protect them from the fluid. Specification 743,778 is referred to.
Patent GB-599730-A (GB)
Title: Improvements relating to high frequency inductor alternators
IPC: H02K19/24
Filed: 1944-11-17
Abstract: 599,730. Inductor - alternators. BRITISH THOMSON-HOUSTON CO., Ltd., and POHL, R. Nov. 17, 1944, No. 22871. [Class 35] In a high-frequency inductor-alternator in which the stator has an A.C. exciting winding and an A.C. output winding, the excitation frequency being the same as the permeance pulsations due to the rotor teeth, the constant flux component is eliminated by a 90 degrees phase displacement between the excitation current and the permeance 'pulsation. In Fig. 1, the stator tooth pitch is half the rotor tooth pitch. The A.C. excitation winding 3 embraces the stator poles. The output coils 2 are wound -around each stator tooth 1, as shown, and E.M.F's. are induced therein at twice the frequency of the A.C. supply to coils 3; alternatively, coils 2 may be wound around pairs of stator teeth. The A.C. exciter and the alternator may be -mechanically coupled and their rotor teeth may have an adjustable relative angular displacement. Fig. 4 shows a different arrangement of teeth ; each D.C. exciting coil 4 and A.C. coil 3 embraces two stator poles, as shown. The output winding 5 lies in the same slots as winding 4. In this arrangement the exciter is combined with the alternator and the required phase displacement of the exciting A.C. is obtained by capacitive or inductive reactance.
Patent GB-381284-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M19/035
Filed: 1931-08-14
Abstract: 381,284. Spray carburetters. TROTMAN, E. W., Shipyard, Littlehampton, Sussex. Aug. 14, 1931, No. 22973. [Class 7 (iii).] A carburetter comprises a hollow body having outlet and inlet openings adapted to be opened and closed by a throttle body slidably mounted coaxially therewith, a fixed jet member terminating in an axial bore in said throttle body, and a tapered hollow needle, open at both ends, carried by and adjustable longitudinally of the throttle body in said axial bore. The carburetter body has an outlet opening 11 and an inlet opening 13 controlled by the throttle body 14 which is axially displaceable by Bowden wire mechanism 35 over a fixed Venturi tube 21 mounted on the main nozzle 18, the orifice of which terminates in an annular groove 24 in the Venturi tube. A tapered hollow needle 31 is carried by the throttle body and is axially adjustable therein by means of the knob 42, stops 32, 33 limiting its movement. The needle terminates in a cage-like enlargement 38. Air enters through the openings 40, 41 and passes through the Venturi tube 21 or as secondary air through the passage 13. Air also enters through the hollow needle 31, this needle being pulled out in order to obtain a rich mixture for starting with the throttle closed.
Patent GB-424207-A (GB)
Title: Improvements relating to slidable seats for vehicles and the like
IPC: B60N2/12
Filed: 1933-08-17
Abstract: 424,207. Sliding seats. CHAPMAN, A. W., 115, Howards Lane, Putney, London. Aug. 17, 1933, No. 23026. [Class 52 (ii)] In sliding seats provided with an adjustable locating stop of the general type described in Specification 261,460, [Class 52 (ii)], for example, means are provided for adjusting and locating the stop upon or within a rail upon which it slides, the stop being releasable by a pivotal or push or pull movement, and the co-operating means for adjusting and locating the stop on the rail are such that if the stop is not locked it will, whether moved backwards or forwards on the rail, be automatically located and locked in one or other of a number of fixed positions. In the construction described, the seat is provided with a slide member 1 engaging a fixed rail 2 on the floor. The stop member 5 is formed with projections 6 sliding within the turned over edges of the rail 2, and carries a latch 9 having a hook 11 adapted to engage in any one of a number of apertures 4 in the rail 2. The hook is normally pressed downwardly by a spring, but can be lifted by pressure applied to a finger plate 10 to release the stop for adjustment along the rail 2. The catch 13 on the seat slide member 1 has hooks 14 adapted to engage under spring action with a projection 15 on the stop 5. Should the stop not be locked to the rail 2 when the catch 13 engages it, the stop is pushed along the rail until the latch drops into the next aperture 4, and is thereon locked to the rail. The stop may be mounted on the seat, and the catch upon the guide rail. Specification 405,954 also is referred to.