baber/WOPTO huggingface dataset:
Patent GB-530003-A (GB)
Title: Improvements in and relating to the separation of mixed metals
IPC: C22B7/00
Filed: 1939-06-03
Abstract: 530,003. Separating metals. BELL, G. C., and MANKEN, E. G. June 3, 1939, No. 16377. [Class 82 (i)] Apparatus for separating mixed metals by heating them in a fluid such as. a high flash point mineral oil maintained at a temperature between the melting points of the constituent metals of the mixture, for. example for separating white metals from brasses or bronzes, comprises foraminous trays 7 supported in a bath 1 in which fluid heated by immersion heaters 3 is maintained at a constant level 6. A collecting tray 10 for the molten metal, formed with slots 11 surmounted by curved plates 13, is mounted under the containers 7. A frame 14 on which the containers 7 can be placed is arranged to be jolted by pneumatic means 20, the molten metal disengaged being caught in a hopper 17 from which it is discharged by a pipe 21 to moulds 22. Fluid escaping from the bath 1 is returned thereto by means of an overflow tank 25 and pump 26. A foraminous basket of finer mesh may be used along with the containers 7 for the treatment of mixed metal particles which would pass through the larger perforations of the containers 7.
Patent GB-111692-A (GB)
Title: Improvements in or connected with Hydraulic Pumps, Motors, Clutches and the like.
Inventor: CAREY ROBERT FALKLAND
IPC: F04B1/04
Filed: 1916-11-15
Abstract: 111,692. Carey, R. F. Nov. 15, 1916. Revolving-cylinder pumps.-In hydraulic pumps, motors, clutches, &c., of the kind having a number of cylinders revolving round a central axis, and in which the valve or fluid-distributing device consists of a series of ports or passages in the rotor connecting the cylinders periodically to pressure or exhaust ports in a non-rotating member against which the end of the rotor is held, the non-rotating member or valve plate G is pivoted so that it can be adjusted to the rotor by the pressure in the apparatus. The plate G is preferably pivoted on an adjusting screw L, and in connexion with each port H, I a pressure area and abutment are provided. These areas may be formed by circular recesses S in the back of the plate G in which are situated plungers, spigots, &c. R forming part of the passage from the ports in the valve plate to the pipes connected to the casing. The pressure in the recesses S forces the plate G against the rotor. The rotor may be pressed towards the plate by a thrust bearing with screw adjustment or by admitting pressure through a throw-over valve D in the plate G and a passage B to a space A at the opposite end of the rotor. Replenishing and relief valves may be arranged in the plate G.
Patent GB-988437-A (GB)
Title: Improvements in or relating to electronic circuit arrangements
Inventor: ARNOLD JOHN SPENCER
IPC: H03K3/286
Filed: 1963-04-26
Abstract: 988,437. Transistor delayed release relay circuits; automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. March 17, 1964 [April 26, 1963], No. 16451/63. Headings H3T and H4K. A delayed release relay circuit suitable for a " called-subscriber-held" (C.S.H.) telephone system comprises a relay connected to a bi-stable transistor holding circuit and arranged so that the relay is maintained operated after the end of a hold signal and until termination of a reference pulse. As shown, the read relay B, once operated by a pulse at OP, is maintained operated by a path through the normally conductor transistor T1 of a bi-stable pair T1, T2. Regular pulses applied at P are differentiated by C, R7 and the leading edge may switch over the bi-stable circuit, but in this case the relay would be maintained operated until the end of the pulse by a holding circuit through D1, whereupon it would be released. However, earth potential is normally connected by a transistor, not shown, to a point A to provide a further holding circuit preventing release of the relay and also preventing the transposition of the bi-stable circuit. Accordingly, if the earth is removed from A before a pulse at P, the release of the relay is delayed until the end of the pulse. If it is removed during the pulse, the bi-stable circuit will not be transposed until the next pulse occurs and the delay is extended to the end of this pulse. If the control potential applied to A is not earth but a negative value, a Zener diode may replace R5 to prevent, by normal diode action, the flow of current from the transistor base to the negative supply, the normal regenerative action being provided by the reverse conduction of the diode. If the control voltage FA is normally positive, a diode may be connected in series with the collector of T to prevent reverse breakdown. The circuit is brought into operation with T1 conducting by first connecting the emitter of T1 to earth and then connecting the emitter of T2 to earth. The circuit may be used to delay the operation of an alarm or automatic release in CSH systems to prevent operation during momentary replacement of the called subscriber's hand-set. For this purpose earth or a similar potential is applied over lead A when the called subscriber answers and is discontinued after a delay when the hand-set is replaced. The pulses at T are metering pulses applied to the calling subscriber's meter and thus the delay is between 1 and 2 metering period.
Patent GB-560999-A (GB)
Title: Improvements relating to closures for corsets and similar garments
IPC: A41F1/04
Filed: 1942-11-20
Abstract: 560,999. Corsets &c. KISPERT, J. J. Nov. 20, 1942, No. 16465. [Class 141] The lacing hooks 25 of the supporting flaps 20, 21 of a corset are mounted at spaced intervals on a supporting tape 30, which is enclosed within an interlining 33, the outer fabric 36 of the flap, and an inner facing 37. These parts are secured together by stitching, and criss-cross stitching 41 is provided to prevent wrinkles. The lacing hooks may be on the inside or outside of the flaps, and, in addition to the stitching, the parts above referred to may be secured together by eyelets extending wholly or partly through them.
Patent GB-439356-A (GB)
Title: Improvements in the manufacture and production of aromatic hydroxy compounds
IPC: C07C37/58
Filed: 1934-06-02
Abstract: Aromatic hydroxy compounds are obtained by heating aromatic hydrocarbons or their oxygen-free derivatives with oxygen in the vapour phase at temperatures above 500 DEG  C. and in the absence of catalysts.  The temperature chosen is preferably between about 650 and 750 DEG  C. and the process may be carried out in a cycle, the products being removed from the circulating mixture.  Oxygen mixed with steam or with carbon monoxide, hydrogen or methane may be used. Suitable substances for the treatment are benzene, toluene, naphthalene, chlorbenzene and methylnaphthalene.  According to examples, the treatment of benzene produces phenol and sometimes di-phenyl, naphthalene produces alpha naphthol, chlorbenzene gives chlorphenols and toluene gives cresols with some higher molecular hydrocarbons such as ditolyl.
Patent GB-636958-A (GB)
Title: Improvements in or relating to piezo-electric pressure indicators
IPC: G01L23/10
Filed: 1947-06-23
Abstract: 636,958. Electric indicating systems. SCHWEIZERISCHE LOKOMOTIV - UND MASCHINENFABRIK. June 23, 1947, No. 16496. Convention date, June 22, 1946. [Class 40 (i)] In a piezo-electric pressure indicator, e.g. for use with internal combustion engine cylinders, the quartz-crystal is disposed in a casing, sealed from the atmosphere, together with a quantity of a drying agent such as silicagel or calcium oxide. The casing may also be water cooled. As shown, two piezo-quartz plates 1 are mounted on a bolt 2 and pre-stressed between the bolt head 17 and a screw plug 3 by a nut 2a, washer 2c and end disc 2d. The plug 3 is screwed into a casing 15 and by means of a ring gasket 10 and a membrane 17 disposed between the bolt head and the quartz plates 1 seals the quartz chamber 9 from the atmosphere. The drying agent is contained in a chamber 12 connected to the quartz chamber 9 by a bore 11. Cooling water is circulated through ducts 8, 14 in the casing members 15, 15a to the water jacket 6 for peripheral cooling of the crystal element and through the hollow bolt 2 as at 13 to cool the bolt head. An insulated conductor 4 connects the insulated end of the crystal through a plug 5 to the external circuit.
Patent GB-165150-A (GB)
Abstract: 165,150. Clark, W., and Clark's Neo- Electric Devices, Ltd. March 4, 1920. Electromagnetic current meters; resistances, measuring.-Two moving coils e, f disposed at a definite angle and each having only one active side are adapted to move in a common path in the same air-gap formed between polar extensions b, c on a fixed magnet a. One of the polar extensions b :.s of hook shape, the axis of movement of the coils being within the hook. The other polar extension c has a concave face concentric or eccentric with the pole b, forming an air-gap within which the active sides of the coils may travel with an effective range of not less than 120‹. A projection h is provided on the pole b to influence the coil f. The apparatus may be applied to the comparison of current strengths as in the measurement of resistance.
Patent GB-313081-A (GB)
Title: Pedestal supports
IPC: B21J15/18
Filed: 1929-05-29
Abstract: 313,081. Chicago Pneumatic Tool Co., (Assignees of Stevens, E. W., and Young, D. A.). June 6, 1928, [Convention date]. Percussive tools. - Relates to stands for fluid - pressureoperated tools and consists in a stand that houses treadle operated means for controlling the supply valve. The stand is described with reference to riveting. A base A receives a column B adjustably clamped at 4. Arms C, D adjustable on the column are similarly clamped. A percussive hammer 6 has lug s 8 that embrace a tang d on the arm D clamping being effected at 9. Exhaust passes by ports 11 to the space 10 and escapes axially of the tool. The valve 13 is operated by a rod 17 for telescopic adjustment by a nut in a tube 16 in the column. The tube 16 is actuated by a treadle 15a and spring 20. The rod 17 is knurled at 17<a> and is slotted to pass a cotter to prevent rotation after adjustment which is effected by removing the cotter and turning the rod.
Patent GB-1186074-A (GB)
Title: Improvements in and relating to Methods of Manufacturing Electrical Devices comprising a Granular Layer
IPC: H01L31/0384
Filed: 1967-04-11
Abstract: 1,186,074. Abrasive articles. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 April, 1967 [14 April, 1966], No. 16562/67. Heading C4V. [Also in Division H1] An abrasive member used to remove a copper layer 3 from the surface of grains 1 forming an electrical device (see Division H1) comprises 5 Á diameter alumina grains 21 embedded in a 0-2 mm. thick silicone rubber sheet 22 on a foam support 23 mounted on a rigid plate 24.
Patent GB-1102447-A (GB)
Title: Improvements in or relating to the manufacture of knitted garments
Inventor: GILCHRIST REGINALD SELBY
IPC: D04B1/24
Filed: 1964-04-22
Abstract: 1,102,447. Knitted garments. KLINGER MANUFACTURING CO. Ltd. 20 April, 1965 [22 April, 1964], No. 16733/64. Heading A3V. [Also in Division D1] A nether garment, particularly tights or pantees, is knitted in two parts 11-14, each part including an integral crotch portion 16. As shown each part is knitted on a circular machine with heel like portion 16 formed by a picked knitting process, the body portion 14 is then slit along edges 17, 18 or 17<SP>1</SP>, 18<SP>1</SP>, the slits continuing into the portion 16 at 19, 20 or 19<SP>1</SP>, 20<SP>1</SP> and edges 17-20 are joined to edges 17<SP>1</SP>-20<SP>1</SP> respectively. Alternatively each part is knitted on a flat bed machine as a blank with a projection at each side for forming the crotch portion. Each part is then folded in two and the edges of the leg and lower crotch portions are joined to each other. The two parts are then joined at edges corresponding to edges 17, 18, 17<SP>1</SP>, 18<SP>1</SP> by sewing or adhesive directly or with the interposition of a joining fabric strip. A thicker or heavier yam may be used for the portions 16 than for the rest of the garment. Tights are preferably completed by attaching an elastic waistband to the welt 20<SP>11</SP> or by associating a tie tape with the welt.
Patent GB-601067-A (GB)
Title: Improvements in and relating to hydraulic servo-mechanism for actuating the flying control surfaces of aircraft
IPC: B64C13/00
Filed: 1945-07-02
Abstract: 601,067. Fluid-pressure servomotor-control systems. WATSON, C. D. July 2, 1945, No. 16816. [Class 135] A hydraulic servo-mechanism for actuating an aircraft control surface comprises a variable stroke pump 10, Fig. 2, a power device 2 for receiving fluid from the pump and connected to the control surface, a floating lever follow-up linkage 13, 15, Fig. 3, and means, e.g. the catch 19 and slot 28, Fig. 4, for directly coupling at will the manual control member 9 to the control surface, and pressure-relieving means operable in conjunction with the coupling means, e.g. the valve 21, Fig. 1, for short-circuiting the power device. Movement of the member 9 takes up the lost-motion between the pin 14, Fig. 4, and the bush 17 and turns the lever 13 about a pivot 17a to vary the output from the pump through the link 12. Movement of the piston 3 of the power device restores the lostmotion and causes the lever 15, connected through the bush 17 to the piston-rod 5 and pivoted to the framework 1 at 16 and to the lever 13 at 17a, to move the lever 13 and link 12 to reduce the pump output. Should the plunger 3 seize in its cylinder 2, the latter may be released from the framework by means of a cable 34 operating a linkage and catch 40.
Patent GB-640166-A (GB)
Title: Improvements in or relating to loaders for hay or the like
IPC: A01D87/00
Filed: 1947-06-26
Abstract: 640,166. Endless conveyers; shoots. FERGUSON, Inc., H. June 26, 1947, No. 16846. Convention date, June 27, 1946. [Class 78 (i)] [Also in Group I] A tractor drawn hay - loader comprises a wheeled frame 15 carrying an upwardly and rearwardly extending elevator 30 which overhangs the rear end of the frame and discharges laterally on to a further vehicle 12, coupled alongside the wheeled frame, and capable of swinging laterally beneath the overhang of the elevator. The tractor 11 carries a draw-bar 16A to which the frame 15 is coupled, the frame being roughly triangular and having a further connection 62 for the hay-receiving vehicle 12. The loading equipment includes a rotating, tined, cylinder 20 which feeds a slotted apron 27 forming the base of the elevator. Tine-bars 51, extending between endless chains, carry the hay up to a horizontal platform 57, the chains and the cylinder being driven from the wheels 18, 19 of the frame 15. The platform 57 has smoothly-curving walls 58 which deflect the hay laterally through approximately 90 degrees, a pivoted. extension 64 being adjustably mounted at the end of the platform so that the direction of discharge of the hay may be regulated. The angle of inclination of the elevator is adjustable by a screw device 36, 40.
Patent GB-186156-A (GB)
Title: Improvements in the manufacture of coating compositions
IPC: C08L89/00
Filed: 1921-06-21
Abstract: 186,156. Imperial Trust for the Encouragement of Scientific & Industrial Research, and Schryver, S. B. June 21, 1921. Washes, distempers, and water paints.- Washes, distempers, and water paints are made from the proteins obtained from castor beans or other oil-bearing seeds. The proteins are mixed with alkalis, such as caustic soda or alkaline carbonate, or a substance such as sodium fluoride which reacts with slaked lime to form caustic soda, together with slaked lime or magnesia, to form cement-forming material. The cementforming material is mixed with pigments which resist the action of alkalis, and water is added. The resulting jellies, on standing, become semiliquids capable of direct application as distempers. The pigments used include zinc oxide, lithopone, whitening, ultramarine, burnt sienna, and Brunswick green. The preferred proportions are 4 parts of cement-forming material to 30 parts of other material.
Patent GB-656391-A (GB)
Title: Improvements in or relating to manually operated switches
IPC: H01H25/06
Filed: 1945-07-05
Abstract: 656,391. Controllers ; snap-action switches; mechanical switches. O'DELL, A. E. (Sauter Akt.-Ges. Fabrik Elektr. Apparate, F.). July 5, 1945, No. 17181. Classes 38(iii) and 38(v)] A manually-operated selector switch which may be used for controlling a threephase machine-tool motor, permitting of two forward speeds and two speeds in reverse, comprises a shaft 1 carrying a series of cams 2 which operate selector contacts 3 for the motor circuit, and an auxiliary cam 4 which operates a contactor 5 controlling a circuit breaker 12 in series with the selector contacts, the circuit being made by the auxiliary device after the selector contacts engage, and broken before the selector contacts separate. The operating handle 6 is of the type which can be swung into the positions shown in Fig. 2, and the camshaft 1 which it rotates is hollow and of square cross-section to receive a rod 7 which can be moved longitudinally by rocking the handle 6 in the direction of the axis of the shaft, thereby controlling the movement of a spring- biassed lever 8 which operates to open or close contacts 9, 10 in the circuit of the energizing coil 11 of the circuit' breaker. A pair of spring-pressed rollers engaging a toothed disc 20 on the shaft 1 serve to hold the shaft in any position to which it is rotated. The annular cam 4 opens the auxiliary contact 5 when the lever 6 is in the position O 2  of Fig. 2 or in positions between the other stops designated thereon, and closes the contact 5 when the lever is in any of the operative positions V 1 , V 2 , R 1 , R 2 . The motor is started by swinging the lever 6 arcuately into the desired position and then rocking it into position E to move the rod 7 to allow the auxiliary contact 9 to close and thereby closing the circuit of the circuit breaker coil 11 over contacts 5 and 10. The motor is switched off by rocking the lever 6 into position. A Remote control may be provided by pushbuttons 21, 22.
Patent GB-969987-A (GB)
Title: Means for adjusting the tappets of internal combustion engines
IPC: B25B13/48
Filed: 1962-05-04
Abstract: 969,987. Screwdrivers. T. E. WILLIAMS. May 6, 1963 [May 4, 1962], No. 17223/62. Heading B4W. [Also in Division F1B] A device for setting the clearance of valve tappets comprises a driving member 1 adapted for engagement with the thrust screw a of a rocker arm b and a gauge member 8 mounted on a member 4 secured to the driving member 1, the gauge being calibrated so that after the screw a has been tightened on the tappet a reversal of the gauge member 8 relative to the driving member indicates the tappet clearance as an angular displacement between the parts. The disc 8 is normally restrained against rotation on the member 4 by frictional engagement. On the top of the disc 8 are an assembly of datum lines which may be read against a fixed reference point on the adjacent structure. In a modification, Fig. 3, the driving member comprises a tool having at one end a slot 11a to receive a screw-driver and provided at the other end with a recess 14 across which extends a web 15 which serves as a screwdriver blade. A spring retaining clip 18 fits between the disc 17 and tool 13 and restrains rotation of the disc except when moved manually through the desired angular displacement. A pointer may be provided on the driving member which moves over the gradations on the disc when relative rotation takes place. A number of interchangeable gauge members may be provided.
Patent GB-765580-A (GB)
Title: Improvements in or relating to white-limiter arrangements in television transmitters
IPC: H04N17/00
Filed: 1954-06-11
Abstract: 765,580. Television. STANDARD TELEPHONES & CABLES, Ltd. June 11, 1954 [June 16, 1953], No. 17294/54. Class 40 (3). To facilitate adjustment of the white limiter in a television transmitter pulse signals are combined with the video signals so as to extend a predetermined amount into the " whiter-than - white " region before application to the white limiter. As shown, pulse signals 3 are combined with the video signal 1 in fixed phase relationship to the synchronizing pulses 18 and the combined signal is limited at a level 6 in the " whiter-than-white " region by means of a first limiter 7. In order to reduce faulty indications resulting from the voltage drop across the internal resistances of the whitelimiter when a considerable degree of limitation must take place (e.g. when the pulse 3, the amplitude of which is such that when added to a black level signal it would reach the level 6, is added to a maximum white signal) additional pulse signals 11, of the same phase, but of opposite polarity to the pulses 3, are combined with the signal output of limiter 7 so as to reduce the amplitude of the composite signal to a fraction above the white level 13. The white limiter 9 can then adjust the white level of the signal with exactness, as shown at 15. The limiter 9 may be arranged to give an audible or visible warning when limitation takes place.
Patent GB-1137774-A (GB)
Title: Refractory composition and method of preparation
IPC: C04B35/03
Filed: 1966-04-20
Abstract: 1,137,774. Periclase refractories. UNITED STATES STEEL CORP. 20 April, 1966 [3 May, 1965], No. 17354/66. Heading C1J. A refractory composition is obtained by mixing with lightly carbined magnesia 1-5% SrO and 1-8% Al 2 O 3  the ratio SrO/Al 2 O 2  # 1, briquetting, firing at 2800-3100‹ F. and crushing the product, which can be used either coarse or fine, and comprise all or 20-50% of a brick making batch, the remainder being constituted by untreated magnesia.
Patent GB-642470-A (GB)
Title: Improvements in buckles
IPC: A44B11/12
Filed: 1947-07-01
Abstract: 642,470. Lever clips. AEROLEX, Ltd., and HARLEY, F. B. July 1, 1947, No. 17355. [Class 44] The buckle described and claimed in Specification 638 277 is modified by the provision of a straining device in the form of a crank 30 carried on an arm 33. A loop 11 on the end of the strap passes round the crank and is drawn towards the buckle by movement of the lever 33 to the position shown. The crank is so disposed that it passes over its dead centre position during the tightening movement of the operating arm which is thereby retained in contact with the buckle structure. In a modification the strap is arranged to pass near the crank, being tightened by deflection as the crank is turned.
Patent GB-1537104-A (GB)
Title: Arc-discharge devices
IPC: H01J61/12
Filed: 1976-04-29
Abstract: 1537104 Metal-vapour discharge lamps WESTINGHOUSE ELECTRIC CORP 29 April 1976 [29 April 1975] 17435/76 Heading H1D An arc-discharge lamp comprises a sealed light-transmitting tube 12 with electrodes 14 at its ends, having a filling comprising mercury in an amount which would, as calculated, provide a vapour pressure in the tube of 1 to 10 atmos. if fully vaporized as the only constituent at 2000‹ K., a small amount of inert gas for starting, at least one alkali metal halide from NaI, NaBr, LiI and LiBr, and at least one scandium halide from ScI 3  and ScBr 3 , where the molar ratio of alkali metal halide to scandium halide is from 1À7 : 1 to 5 : 1, and the total amount of halide is at least 0À1 mg. per mm. of electrode spacing. The molar ratio is preferably around 2À5 : 1, and the amount per mm. of electrode spacing is preferably around 0À45 mg. and, in any case, not more than 1À5 mg. The preferred halides are NaI and ScI 3 . The addition of small amounts of iodides or bromides of Cs, Tl, Th, In, Ce, Pr or Nd is mentioned. The discharge tube 12 is made of quartz or alumina and is mounted in an outer envelope 22 in conventional manner.