baber/WOPTO huggingface dataset:
Patent GB-674200-A (GB)
Title: Improvements in or relating to a catgut bottle
IPC: A61B17/06
Filed: 1949-12-30
Abstract: 674,200. Putting-up surgical appliances. GARDNER, L. F. (Graf & Co., R.). Dec. 30, 1949, No. 33325/49. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 14, 1951.] Class 81 (ii). A storage bottle for catgut sutures has two interchangeable caps, one for sealing the neck during storage and the other having an aperture through which the thread is drawn during use. The latter may be made in two parts, one 10, Fig. 2, tightly gripping the neck of the bottle 1, in place of the sealing cap which is normally screwed thereon, and the other 11 in the form of an apertured top cap which retains a rubber disc 14, in which there is a small aperture 18 for the passage of the thread. In modifications the top cap is extended to form a guide for the thread, Fig. 4 (not shown), or it is duplicated to cause the thread to pass through two rubber discs, Fig. 5 (not shown). Fig. 1 shows the preferred form of bottle with the sealing cover 7 screwed in position against a resilient washer 8. Thread from a ball 2 is withdrawn through an apertured rubber disc 5, retained by a threaded ring 6.
Patent GB-1039045-A (GB)
Title: Voltage frequency converter
IPC: G01D5/12
Filed: 1963-08-23
Abstract: 1,039,045. Pulse modulation; transistor pulse circuits. SIEMENS & HALSKE A.G. Aug. 23, 1963 [Aug. 27, 1962; Jan. 28, 1963], No. 33391/63. Headings H3T and H4L. A circuit for transforming a voltage into a pulse train of frequency dependent on the voltage is provided with means for suppressing the pulse output if the frequency drops below a predetermined level. In Fig. 1 the voltage at terminals K1, K2, determines the frequency of the pulse output at terminals K3, K4. The pulses pass to two AND gates G1 and G2 and to a mono-stable device M1, the recovery time of which corresponds to the lower limit of pulse frequency below which the pulses are to be blocked. If the device M1 has not had time to recover, gate G1 will be open on the occurrence of the next pulse and a second similar monostable device M2 will be actuated. The pulses from M1 and M2 passing through OR gate G3 will maintain AND gate G2 open and the signal pulses will pass through to the utilization circuit A. If Ml has time to recover, gate G1 is closed when the next pulse arrives so M2 is not actuated; the pulses from M1 open gate G2 only in the intervals between pulses, so low frequency pulses do not pass to the output. In another circuit, Fig. 3, input pulses at point E pass through transistor T1 to Diode D and to transistor T2. On receipt of a pulse T2 conducts and discharges condenser C which then starts charging through resistance R. If sufficient time elapses before the next pulse, condenser C charges sufficiently to cause T3 to conduct and cut off T4. With T4 cut-off the diode D is biased so as to be non-conducting and pulses do not pass to the output. The transistors used in Fig. 3 are of the PNP type. In a modification, Fig. 5 (not shown), transistors T2 and T3 are replaced by NPN transistors, and transistor T3 controls the bias on diode D.
Patent GB-1041708-A (GB)
Title: Burner-recuperator unit for furnaces
Inventor: FRANCIS WILLIAM ERIC
IPC: F23L15/04
Filed: 1964-08-15
Abstract: 1,041,708. Burners; heating air by waste gases. GAS COUNCIL. Aug. 12, 1965 [Aug. 15, 1964]. No. 33408/64. Headings F4S and F4T. A unit adapted to be mounted on the wall of a furnace comprises a gas or oil burner 4 and a recuperator 5 adapted to heat the combustion air supplied to the burner. The recuperator comprises coaxial tubes 16, 17, the inner tube 16 being connected at its lower end to a flue 7 of the furnace and at its upper end to a flue gas extractor 6 which may be a fan or an ejector as shown, the outer tube 17 being supplied at its upper end with air by a pump and being connected at its lower end by a pipe 25 to the burner 4. A tubular refractory core 18 closed at its lower end is mounted within the inner tube 16. A sliding joint or a bellows may be provided to allow expansion of the recuperator. The burner comprises an annular air manifold 13 delivering air through orifices 14 into a furnace port 10 and surrounding a central fuel entry 12 supplied by a pipe 15. The air may entrain the fuel.
Patent GB-378732-A (GB)
Title: Improvements in or relating to rubber boots
IPC: A43B3/02
Filed: 1931-12-03
Abstract: 378,732. Rubber boots. ISAKSSON, E., ISAKSSON, E. B., and PAULSSON, M. A., Torekov, Sweden. Dec. 3, 1931, No. 33537. [Class 17 (ii).] A boot of the kind made entirely of crepe rubber sheeting, comprises a leg portion 1, Fig. 1, cut integrally with a tongue 1a, Fig. 2, which is adapted to form a central part of the foot portion, two side portions 8, and a counter piece 9. These are assembled on a last together with an insole, sole, and heel, and the parts, preferably having bevelled overlapping portions, are attached to each other by adhesive. In order to make the boot easy to pull on and off, the inside, especially of the lower part of the leg portion 1, may be coated with a mixture of a suitable adhesive solution, such as latex and a talcum powder. In a modification, the leg and foot portions of the boot are coated externally with a fireproof asbestos fabric solutioned to the crepe rubber sheeting.
Patent GB-403518-A (GB)
Title: Improvements in or relating to dynamo electric machines
IPC: H02K23/44
Filed: 1932-11-28
Abstract: 403,518. Controlling dynamo-electric machines. ELIN AKT.-GES. FUR ELEKTRISCHE INDUSTRIE, 1, Volksgartenstrasse, Vienna. Nov. 28, 1932, No. 33693. Convention date, Nov. 26, 1931. [Class 35.] The reluctance of a machine is made gradually variable by the provision in the magnetic circuit of two members in sliding relationship, one of which has parts cut away, the iron remaining between the openings being in contact with the other member and having a section which varies gradually. As shown in Fig. 1, the plunger 4 is adjustable in the tube 11 which has openings 10 shaped as shown, but which may, alternatively, be circular. In another arrangement, the openings are in the adjustable plunger while the tube has an inset of non-magnetic material. In the form shown in Fig. 4, the yoke has openings 47 with which co-operate plungers 43, whilst in a further modification rectangular plates slide vertically over suitably shaped openings in the yoke.
Patent GB-1465135-A (GB)
Title: Soil sampling device
IPC: E21B25/06
Filed: 1974-07-31
Abstract: 1465135 Pneumatic hammers UPRAVLENIE GEOLOGII SOVETA MINISTROV TURKMEN SSR 31 July 1974 33743/74 Heading B4C [Also in Division E1] A pneumatic hammer 1 connected to a soil sampling tube 2 (see Division E1) includes a piston 6 co-operable with an anvil 7 and a valve member 8 supported by a shock absorbing ring 9 having exhaust passages 12. At the beginning of each operating cycle of the hammer, air is supplied via the valve member 8 and ports 16 in the piston to the space around the latter to raise it, the ports 16 eventually being covered by the valve member but the piston continuing to rise until the ports move clear of the top of the working land on the valve member, at which stage the space around the piston is exhausted and the piston is driven downwards by the pressure of air therein and finally impacts against the anvil, the cycle then repeating.
Patent GB-1061563-A (GB)
Title: A new or improved stainless steel and articles produced therefrom
Inventor: DAWSON DAVID WHITFIELD OUTRAM
IPC: C22C38/42
Filed: 1962-09-03
Abstract: 1,061,563. Stainless steel. A. P. V. PARAMOUNT Ltd. Dec. 2, 1963 [Sept. 3, 1962], No. 33758/62. Heading C7A. A martensitic steel casting comprises: - the balance, apart from impurities being iron. The casting may be solution treated at 1000- 1050‹C., air cooled, hardened at 470‹C. and air cooled.
Patent GB-1336098-A (GB)
Title: Benzyl chrysanthemumates
IPC: C07C69/747
Filed: 1972-07-19
Abstract: 1336098 Benzyl chrysanthemumates S C JOHNSON & SON Inc 19 July 1972 [28 July 1971] 33777/72 Heading C2C The invention comprises compounds of the formula where R and R<SP>1</SP> are H, C 1-6  alkyl, C 2-6  alkoxy, Br, Cl, F, CF 3 , CN, NO 2  or SO 3 H, and R<SP>2</SP> is H, C 1-6  alkyl, C 2-6  alkoxy, Br, Cl, F, CF 3 , CN, NO 2 , SO 3 H or SO 3 R<SP>3</SP>, where R<SP>3</SP> is C 1-6  alkyl, phenyl, p-nitrophenyl, chlorophenyl, dichlorophenyl or alkylphenyl, wherein the alkyl group has 1-6 carbon atoms, provided that when R<SP>2</SP> is H or methyl each R and R<SP>1</SP> is C 2-6  alkyl, C 2-6  alkoxy, Br, Cl, F, CF 3 , CN, NO 2  or SO 3 H. The compounds may be prepared by reacting an appropriate benzyl alcohol with chrysanthemumic acid or an alkyl ester or halide thereof, or by reacting an appropriate benzyl halide with chrysanthemumic acid or an alkali metal salt thereof. The compounds are used as insecticides.
Patent GB-282743-A (GB)
Title: Improved tubular dust filters
IPC: A47L9/12
Filed: 1927-12-14
Abstract: 282,743. Straus, E. W. Dec. 31. 1926, [Convention date]. Filtering. - A tubular filter is supported by internal longitudinal elastic wires a, Fig. 1, or c, Fig. 2. When a filter is held down and suddenly released, the recoil of the wires beats and cleans the filter.
Patent GB-991147-A (GB)
Title: Improvements in hydraulic speed controllers for power engines
IPC: G05D13/00
Filed: 1962-09-04
Abstract: 991,147. Fluid-pressure servomotor systems. H. KALB. Sept. 4,1962 [Sept. 7, 1961; July 26, 1962], No. 33794/62. Heading G3P. A hydraulic speed-governor for an engine comprises a hollow rotor 1, Fig. 1, the pressure in the bore 15 of which is controlled by a radially displaceable ball valve 5, or a diaphragm, and acts to position a spring-loaded servo-cylinder 26 operating, e.g. the fuel valve of the engine. Fluid under pressure, maintained constant by a spill valve 22, is fed through a restriction 24 to the bore 15 and through a restriction 23 to a loading chamber 4 for the ball vale. When the centrifugal force on the ball valve overcomes the loading in chamber 4, which is adjustable by a valve 8, the ball valve allows escape of fluid from the bore 15 to a radial outlet 6. The consequent change of pressure in the bore 15 may influence the loading pressure in the chamber 4 through an adjustable valve 25 which may be operatively interconnected with the valve 8. A member 18 pivoted at 19 adjusts an outlet 17 from the bore 15 in response to acceleration or deceleration. Instead of the ball valve a piston with a conical seat, or several pistons operating in sequence, may be employed. The conical seats may be grooved in a manner to cause escaping fluid to impart rotation to the pistons. Fig. 5 shows a rotor 101 with such a piston 105, an acceleration and deceleration member 118, and a remote servomotor 134 actuating the fuel valve 136. The loading pressure for the piston 105 is derived from a chamber 142 of a pressure reducing valve connected to a pressure supply conduit 121 which feeds the hollow rotor and the servomotor through a restriction 152. Pressure changes in the conduit 160 leading to the servomotor are communicated through an adjustable restriction 153 to a chamber 141 where they modify, after a time delay determined by a capacity 159, the pressure supplied by the pressure reducing valve to the piston 105. The datum speed may be modified , within an upper limit set by a handwheel-adjusted spring 146, by a remote controller 138 which varies the pressure applied to a piston 149.
Patent GB-521702-A (GB)
Title: Improvements in or relating to the production of wires, tubes and other shaped objects covered with artificial materials
IPC: B29C48/09
Filed: 1938-11-21
Abstract: 521,702. Coating articles by extrusion. SHEVLIN, J. T. (Patentverwertungs-Ges. Hermes) Nov. 21, 1938, No. 33827. [Class 87 (ii)] Wires, tubes and other shaped objects, which are to be covered with thermo-plastic highly polymerized polymerizates by extrusion, are heated, before the extruding operation, to approximately the same temperature as the heated material to be applied. The thermoplastic material may comprise polymerizates or mixed polymerizates having a base of vinyl chloride, acrylic acid, or butadiene. The temperature of the wire &c. may vary up to 10 per cent. from that of the plastic material.
Patent GB-463003-A (GB)
Title: Improvements in or relating to systems of control for electrically operated lifts
IPC: H02P3/04
Filed: 1935-12-06
Abstract: 463,003. Control of A.C. motors. GENERAL ELECTRIC CO., Ltd., and CHUBB, A. A. Dec. 6, 1935, No. 33830. [Class 38 (iii)] Non-regenerative braking. -For slowing down an asynchronous motor ST driving a lift, direct current derived from the supply through rectifiers YA, YB, is applied to its windings, the rectifiers being connected in parallel with resistances or impedances RA, RB. The invention is described in the case of the driving motor of a lift system operating as described in Specification 453,723, [Group XXVIII]. Upon operation'of a callbutton, a directional contactor UD or DD is closed and the lift is started and accelerated to full speed. As the lift approaches the floor to which it is called a relay DC is energized in response to the actuation of an inductor relay to open at contacts dc1, dc2, short-circuits across rectifiers YA, YB, connected in series with the driving motor stator windings. Thus, the motor is subjected to direct-current energization to an extent determined by adjustable resistances RA, RB. The lift is braked and as it approaches the desired floor, a relay, operating in response to the actuation of another inductor relay, de-energizes the directional contactor UD or DD. The driving motor is thus disconnected and a friction brake K applied. Where the lift system includes a switch positioned in accordance with the load on the driving motor as in the system described in Specification 454,725 contact banks provided on these switches may adjust the resistances RA, RB in parallel with the rectifiers YA, YB, in accordance with the load. Suitable resistances may be inserted in the rotor circuit for braking. Reference has been directed by the Comptroller to U.S.A. Specification 1,945,392.
Patent GB-980242-A (GB)
Title: Improved method and apparatus for pouring molten metals
IPC: B22D18/06
Filed: 1963-08-27
Abstract: 980,242. Casting in a vacuum. TEMESCAL METALLURGICAL CORPORATION. Aug. 27, 1963 [Sept. 6, 1962], No. 33907/63. Heading B3F. [Also in Division H1] Casting high melting point metals in a vacuum is effected by heating means in the form of an electron gun 14 mounted on a tiltable crucible 11 within a vacuum chamber 16. The gun heats a block of metal within the crucible 11, forming a molten pool thereon, which is then tilted by hydraulic means 23 to discharge the molten pool into a mould 44. The unmelted metal around the pool serves as a consumable crucible and as a supply of more molten metal. Both the crucible 11 and mould 44 are proxided with cooling means. In an alternative embodiment the electron gun 14 may also be directed on to the metal in the mould to effect controlled cooling, or, two electron guns may be used, both tiltable with the crucible being directed to the metal in the crucible and mould respectively.
Patent GB-895796-A (GB)
Title: Two-speed hub transmission for velocipedes and the like
IPC: B62M11/14
Filed: 1960-10-03
Abstract: 895,796. Variable-speed gear. BENDIX CORPORATION. Oct. 3, 1960 [Oct. 12, 1959], No. 33918/60. Class 80 (2). [Also in Group XXXI] In a two-speed hub transmission and coaster brake for velocipedes, of the type in which ratio shift is effected by slight back-pedalling, the hub 16 is formed with a single conical clutch surface 57 frictionally engageable by a frustoconical surface 56 of an axially movable driven clutch member 28. The clutch member 28 is formed with facial teeth 27, 51 selectively engageable by facial teeth of clutch nuts 25, 48 threaded on low and high speed screw shafts 24, 34. The high speed screw shaft 34 is directly driven and the low speed shaft 24 is driven through epicyclic reduction gearing. Frictional braking means apply drag to both clutch nuts to ensure axial traverse of the nuts on forward rotation of the screw shafts, and baulking means selectively permits or prevents engagement of the high speed clutch nut 48. The baulking means includes a sleeve 61 fast with the high speed clutch nut 48 and having arms 63 bearing frictionally on an abutment ring 62 which is formed with elastic pawls 73 engaging ratchet teeth 69 formed on the high speed screw shaft 34. The abutment ring 62 is also formed with lugs 74 which, as the ring is indexed step-by-step on back pedalling, alternately block the path of the arms 63 of the sleeve 61 and register with the spaces between the arms to prevent and permit the high speed clutch nut to engage the driven member 28. The driven clutch member 28 is slidably and rotatably journalled on the sleeve 61. When the high speed clutch nut engages the driven member, in order to prevent concomitant engagement of the low speed clutch nut 25, a drag member 77 is provided which is fixed to the hub and has fingers 78 bearing frictionally on a tapered surface 79 of the low speed clutch nut. In a modification of the drag member 77 it is secured in a groove in the driven clutch member 28 and bears on an internally tapered surface of the low speed clutch nut. Instead of facial tooth engagement between the high speed clutch nut 48 and the driven member 28, they may be formed with co-operating conical surfaces for frictional engagement. Backward rotation of the low-speed screwshaft 24 causes the clutch nut 25 to traverse the shaft to the right to engage and operate the presser member 22 of a multi-plate friction brake. The engaging faces of the clutch nut and member 22 are formed with facial teeth 58, 59.
Patent GB-1311165-A (GB)
Title: Method of producing enameling iron and enameling iron compo sitions and articles
IPC: C21D9/46
Filed: 1970-07-13
Abstract: 1311165 Enamelling iron USS ENGS & CONSULTANTS Inc 13 July 1970 [11 July 1969] 33918/70 Heading C7A and C7D A charge is air melted and refined to a composition consisting of C 0À05 - 0À1 Mn 0À04 - 0À12 S - 0À04 Si - 0À1 Fe balance, apart from oxygen and other impurities, which is then vacuum deoxidized without addition of deoxidizers to reduce the oxygen and carbon contents to less than 0À03% and 0À04% respectively. After casting the iron is hot rolled in a number of steps followed by cold rolling with 50% reduction to produce a sheet which may be recrystallized by subcritical annealing.
Patent GB-393632-A (GB)
Title: Process for the manufacture of condensation products of the anthraquinone series
Filed: 1931-12-09
Abstract: Condensation products of the anthraquinone series are obtained by condensing 1-amino-4 - alkyl-, arylaralkyl- or hydroaryl-amino-anthraquinone-2-sulphonic acids, in which the 5-8 positions may be substituted in particular by halogen or sulphonic acid groups, with a malonic acid dialkylester at an elevated temperature (150-200 DEG  C.), preferably in presence of a solvent, capable of dissolving both reactants, e.g. phenol, and preferably in presence of an alkaline agent.  The products are C-carbalkoxy-anthrapyridones.  According to examples, malonic acid dimethyl ester is condensed with 1-amino-4-methylamino-anthraquinone-2-sulphonic acid, and the diethyl ester is condensed with 1-amino-4-anilidoanthraquinone-2-sulphonic acid, and the latter compound may be replaced by the corresponding 4-p-toluido-, 4-m-chloroanilido, 4-p-acetylaminoanilido-4-hexahydroanilido- (the latter at 150-160 DEG ) and 4-anilidoderivatives as above substituted also in the 6-position by chlorine sulpho- or in the 5-position by sulpho-.  The products dye wool from acid bath red to violet shades.  1 - Amino - 6 - chloro - 4 - anilido - anthraquinone-2-sulphonic acid is obtained by condensing 1-amino-2 : 4-dibromo-6-chloro-anthraquinone with aniline and treating with sodium sulphite.  1 - Amino - 4 - anilidoanthraquinone - 2 : 6-disulphonic acid is obtained from 1-aminoanthraquinone-6-sulphonic acid by homination, condensation with aniline and treatment with sodium sulphite.
Patent GB-1555171-A (GB)
Title: Quartz crystal vibrator
IPC: H01L41/04
Filed: 1977-08-15
Abstract: A flexural mode tuning fork quartz crystal vibrator having two vibrator tines including first and second opposed substantially planar surfaces, the thickness of the plate between said opposed surfaces being no greater than 0.2 mm is provided. Both surfaces of each tine have three electrodes on at least the lengthwise peripheral sides of the respective surfaces of the tines and a third electrode intermediate and not in contact with the two peripherally disposed electrodes with each intermediate electrode being short-circuited to the peripheral electrode on the other tine. A fourth electrode is disposed on at least one lengthwise side edge of both of the respective tines, the fourth electrode electrically coupling the peripherally disposed electrode on the lengthwise peripheral sides of the respective surfaces of the tine.
Patent GB-732649-A (GB)
Title: Improvements in and relating to couplings for liquid sealing traps
IPC: E03C1/284
Filed: 1953-12-09
Abstract: 732,649. Pipe joints. McALPINE & CO., Ltd., and McALPINE, J. B.' Dec. 9, 1953, No. 34253/53. Class 99 (1). Amethodofmaking a coupling for a waste pipe liquid trap consists in contracting the end of the inlet branch a, slipping a coupling nut d over the branch, fitting a ring e over the contracted end so that the end projects slightly beyond the ring, expanding the branch to grip the ring, and peening over the end of the branch to form a seat for the end of a pipe h, to which the trap is coupled by screwing up the nut and by engagement of its internal shoulder d<SP>1</SP> with an external shoulder g of the ring.
Patent GB-737851-A (GB)
Title: Television system
IPC: H04N11/14
Filed: 1953-12-09
Abstract: 737,851. Television. RADIO CORPORATION OF AMERICA, Dec. 9, 1953 [Dec. 13, 1952], No. 34284/53. Drawings to Specification. Class 40 (3). In a colour television system employing a composite video signal comprising monochrome information, colour signals and synchronizing pulses including a " burst " of colour sub-carrier frequency, distortions (arising e.g. from transmission of the signals from a remote point to a main transmitter) are corrected by splitting the composite signal into a first portion containing the monochrome information and the synchronizing pulses and a second portion containing colour signals and the sub-carrier " burst," the first portion being fed through a conventional monochrome " stabilizing " amplifier (which amplifies the signals, corrects distortion of the synchronizing pulses and restores the D.C. level) the output of which is combined with the second portion to produce a corrected composite signal. This arrangement prevents distortion of the colour components (e.g. phase distortion of the " burst " signal and " clipping " of the colour information when the video signal exceeds the blacker-than-black level) which would result from supplying the composite colour and monochrome signal directly to a conventional " stabilizing " amplifier.