baber/WOPTO huggingface dataset:
Patent GB-1526472-A (GB)
Title: Framework for retaining or supporting plural printed circuit boards
IPC: H05K7/14
Filed: 1976-03-19
Abstract: 1526472 Framework for printed circuit boards LA TELEMECANIQUE ELECTRIQUE 19 March 1976 [19 March 1975] 11137/76 Heading H1R A chassis for retaining a printed circuit board comprises parallel sidewalls conjoined by upper parallel cross members 2, 3 and lower cross members (not shown) the cross members retaining metal support members, e.g. 4 each of which carries lateral metal lugs, e.g. 6, guiding and retaining the edges of printed circuit boards 5. The ends of the support members are tapered at 8, 11 grooves at 9, 12 proximate to a shoulder 10 symmetrically about the support member axis. The cross members 2, 3 are of metal and are shaped to form a U-clamp with parallel arms 13, 14 beaded at 15, 16 to engage grooves 9, 12, while the arms are resiliently connected by walls 18 and base 17 to define a cylindrical channel 19 secured to the side walls by screws. Base 17 has openings 21 housing retaining extensions of the support member, which may be pressure moulded while the cross members may be extruded. Channels 19 are also usable, e.g. to support a wall 23 defining the base of the chassis and carrying connectors 26 for the printed circuits.
Patent GB-1430032-A (GB)
Title: Purification of eluates of macroporous adsorber or ion exchanger  resins
IPC: C02F1/72
Filed: 1974-03-13
Abstract: 1430032 Oxidation of organic-containing aqueous eluates BAYER AG 13 March 1974 [13 March 1973] 11161/74 Heading C1C The eluate from a macroporous adsorption or maoroporous ion exchange resin, which contains one or more organic compounds, is oxidized by treating the eluate with an oxidizing agent at an elevated temperature. The oxidizing agent may be a peroxide, a permanganate, a chlorine oxide, a hypochlorite, chlorine or atmospheric oxygen. The temperature may be 30-70‹ C.
Patent GB-1090079-A (GB)
Title: Oil lubrication system for refrigeration apparatus
IPC: F25B31/00
Filed: 1966-03-15
Abstract: 1,090,079. Lubricating. WORTHINGTON CORPORATION. March 15, 1966 [June 1, 1965], No. 11241/66. Heading F2A. [Also in Division F4] In refrigeration apparatus having a motor-driven centrifugal compressor 12, a condenser 18, an expansion device 20 and an evaporator 22, a lubrication system comprises an oil reservoir 90 from which lubricant is pumped to the compressor and motor bearings, a lubricant and gas separator 104 connected between the reservoir and compressor, and flow inducing means 120 connected to the separator and reservoir to return lubricant to the reservoir. In Fig. 1 oil from reservoir 90 passes via pump 92 to the bearings. Oil returns from the motor bearings 76, 78 by the gear casing 60 and line 96, and by line 98. Gas and oil pass by line 102 into the separator, gas exiting by line 102a to annular space 106 communicating with the compressor inlet. A jet pump 120 is driven by oil from pump 92 and draws oil from the separator 104. In Fig. 3 (not shown) the separator inlet is connected to the gear casing by line (228) and a line (206) supplies the gear casing with gas and oil from the reservoir.
Patent GB-1491377-A (GB)
Title: Preparation of esters
IPC: B01J23/56
Filed: 1975-03-18
Abstract: 1491377 Esters TEIJIN Ltd 18 March 1975 [19 March 1974 20 March 1974 22 June 1974 (2)] 11243/75 Heading C2C [Also in Division B1] Esters of carboxylic acids are prepared by the reaction of C 2-20  olefines, C 1-20  monohydric aliphatic alcohols, carbon monoxide and molecular oxygen at a temperature of 20-350 C. in the presence of a carrier supported catalyst comprising a part-reduced compound of a platinum group metal Ru, Rh, Pd, Os, Ir and Pt and a part-reduced compound of a metal of not less than 22 A.N. of Groups Ib, IIb, III to VIIb. Diesters are the main products and many olefines and alcohols are listed, and if desired a dehydrating agent may be present. The catalysts are reduced after being supported on the carrier. Examples describe the preparation of many catalysts which are used to prepare dimethyl succinate with methyl acrylate, methoxypropionic acid, methyl propionate, dimethyl oxalate and dimethyl carbonate byproducts from ethylene and the corresponding diesters from 2-butene and cyclohexene.
Patent GB-610633-A (GB)
Title: Improvements in automatically and electrically operated change speed gear
IPC: F16H61/00
Filed: 1946-04-12
Abstract: 610,633. Controlling change speed gear. AUSTIN MOTOR CO., Ltd., and HIGHFIELD, F. W. W. April 12, 1946, No. 11246. [Class 80 (ii)] In an automatically and electrically operated change speed gear in which constant mesh gears are engaged with their shafts by electromagnetic clutches, two generators having voltages proportional to their speeds, are driven from the driving' and driven shafts respectively and relays are provided which pull in at voltages proportional to the speed of the driven shaft and are excited by current from that shaft, the relay for the first speed being arranged to be excited by current from the driving shaft generator. The manual lever 11 is moved to contact the post 1 to engage first speed by allowing current to flow from the engine-driven generator 8 through lead 30, potentiometer 29, the closed switch 16 of the relay 12 and the first speed clutch coil 1a. As the vehicle speeds up, the generator 5 on the gear-box driven shaft supplies current to the relay coil 12 through the potentiometer 31, this relay pulls in at a given rise of voltage and thereby closes the switches 14, 15 and opens the switch 16, so allowing current from the generator 5 to flow through the coil of relay 17 and current from the battery B to energize the clutch coil 2a of the second speed, the coil 1a being switched out. The switch 13 opens and closes during the change to momentarily cut out the ignition. As the vehicle speed increases, a similar function is performed by the relays 17, 22 operating to energize the coils 3a, 4a. On reduction of speed, the voltage of the generator 5 drops and successively becomes insufficient to hold the relays 22, 17, 12 in, with the result that the coils 4a, 3a, 2a are de-energized. These changes are effected automatically so long as the changeover switch 28 is in the automatic position, and the switch 11 is on the post 1; if the switch 28 is in the manual position, gears, including reverse R may be engaged manually. The potentiometer 26 is coupled to the pedal doing duty as a clutch pedal and enables the voltage in the energized clutch coil to be reduced to free the engine. The potentiometers 29, 31 are connected to the throttle pedal to prevent hunting when moving from rest or when changing down. The gear may be used in conjunction with a fluid coupling or an eddy current clutch, and according to the Provisional Specification the generators may be alternators feeding through rectifiers.
Patent GB-796453-A (GB)
Title: Aircraft control system
IPC: G05D1/00
Filed: 1956-04-13
Abstract: 796,453. Automatic aircraft control systems. BENDIX AVIATION CORPORATION. April 13, 1956 [April 21, 1955], No. 11356/56. Class 38 (4). In an aircraft automatic pilot, an auxiliary control surface pivoted to a main control surface to apply aerodynamic loading to it, is motoroperated in accordance with a control signal and two follow-up signals, one of which is derived in response to movement of the motor and the other is derived in response to movement of the main control surface. As shown, variations in the pitch attitude of an aircraft are detected by a vertical gyro 10, signals from the inductive pick-off 12 of which are applied through an amplifier 14 to operate a reversible induction motor 15 controlling an auxiliary elevator control surface 73 through gearing 43 and an electromagnetic clutch 44. The aerodynamic loading on auxiliary control surface 73 when operated causes movement of the main elevator control surface 75 to correct pitch. The following negative feedback signals are applied to the input of amplifier 14:-(a) Positional feedback from an inductive device 20 operated by motor 15. (b) Rate feedback from a generator 16 driven by motor 15. (c) Positional feedback from an inductive device 22 operated by the main control surface 75. (d) A feedback dependent on the torque of motor 15 from an inductive device 18 operated by movements of the spring- restrained stator of motor 15. The signal dependent on motor torque derived from inductive device 18 is also applied through an amplifier 14<SP>1</SP>, motor 15<SP>1</SP>, gearing 43<SP>1</SP> and clutch 44<SP>1</SP> to operate, slowly, an elevator trim tab 90. If a switch 120 is opened to de-energize clutches 44, 44<SP>1</SP> and disengage automatic control, auxiliary control surface 73 and hence main control surface 75, may be operated manually by a controller 85, motor 15 then maintaining the input to amplifier 14 zero in readiness for re-engagement of automatic control without shock. If the torque of motor 15 exceeds a predetermined value, limit switches 113 associated with the spring-restrained stator of motor 15 de-energize clutches 44, 44<SP>1</SP> to disengage automatic control. Integral construction of the gearing, clutch and motor torque measuring gear is described. Specification 662,831 is referred to.
Patent GB-181553-A (GB)
Title: Improvements in vehicle wheels
IPC: B60C25/14
Filed: 1921-04-20
Abstract: 181,553. Kirkland, P. S. April 20, 1921. Expanding-wheels.-A vehicle wheel has spokes c, Fig. 2, pivoted to a split or segmental rim a and a hub e so that by moving the spokes from the radial position the wheel can be contracted to facilitate the fitting of a tyre or for other purposes. The spokes may be pivoted to a ring e, Fig. 4, which is rotatable about the hub d, and is locked by a flange g secured to the hub and having arms projecting between the spokes. A locking-means may comprise a short bar engaging grooves in the face of the ring e and a transverse holes through the hub d. In a modification, the inner ends of the spokes are rigidlyconnected to pinions engaging teeth on the ring e. In a further modification, the pinions are loosely pivoted on the spokes and engage teeth on a hub member and on the rotatable ring e. The Provisional Specification states that the wheel may be stiffened when adjusted to its full diameter by cam-actuated packing-blocks between the spokes, and the spokes may have slots through which pins on the hub pass, the slots being shaped to allow angular movement of the spokes and to resist the torque of the hub.
Patent GB-841435-A (GB)
Title: Improvements relating to magneto-strictive delay lines
Inventor: SHOWELL HERBERT ALFRED
IPC: G11C21/02
Filed: 1957-04-08
Abstract: 841,435. Electric digital-data-storage apparatus. SIEMENS EDISON SWAN Ltd. March 31, 1958 [April 8, 1957], No. 11386/57. Class 106 (1). Output pulses from a magnetostrictive delay line, employed e.g. in an electronic computer or automatic telephone exchange, are applied to a pulse lengthening circuit and the lengthened pulses are applied to a coincidence gate together with clock pulses timed to terminate substantially coincidentally with the terminations of the lengthened pulses, thereby to produce positively-timed pulses derived from the delay line. In the circulating storage system shown in Fig. 1, pulses from the output coil OC of delay line L are applied via amplifier AMP1 to pulse lengthener PL1 comprising a bistable circuit which is set by a pulse to be lengthened and is reset by the next digit-period-defining clock pulse P1 (see Fig. 2). The lengthened pulse is applied to gate G1 which is controlled by pulses P2 occurring immediately before P1, whereby an accurately-timed output pulse is obtained from G1 even when the timing of the output pulses from AMP1 varies as indicated. The output of G1 is applied to a further pulse lengthener PL2 which is reset by pulses P3 so as to provide pulses of predetermined length l which are passed via amplifier AMP2 to output terminal O. The output from AMP2 may also be passed via gate G2, inhibited when erase signal ER is present, to input gate G3 which also receives external input from terminal I. The input signals are gated in G4 by further clock pulses P4 and passed via AMP3 to input coil IC. Modified forms of delay line input circuit (Figs. 3 and 5, not shown) also are described. Each pulse lengthener may comprise a capacitor C, Fig. 7, which is charged by a positive pulse at ti which cuts off transistor Ti, thus allowing current flow through diode MRa, and is discharged by a positive clock pulse at P through diode MRb. The lengthened output on lead o is applied through emitter-follower transistor To to terminal to. Circuit details of the gates and amplifiers also are given, amplifier AMP1, for example, comprising a series of grounded emitter transistor amplifying stages followed by a clipping stage. Instead of being included in a circulating system, the delay line may function as a temporary store.
Patent GB-1443173-A (GB)
Title: Method of forming bitumen coatings
IPC: B05D1/36
Filed: 1973-03-09
Abstract: 1443173 Bitumen coatings; bitumen emulsion EVODE Ltd 11 April 1974 [9 March 1973] 11420/73 Headings B1V and B2E A bituminous coating is applied to a surface by forming a coating on the surface of a bituminous emulsion containing a water soluble alginate and spraying onto the coating, while it is still wet, with an aqueous solution of a di- or tri-valent metal salt, whereby the coating is rendered resistant to rainfall. The emulsion may also contain thickeners (e.g. polyacrylates or bentonite) and/or fillers (e.g. asbestos fibres), and may be applied by brush roller or spray. In an example a 50 wt % emulsion of bitumen of sodium alginate, and 6% by wt. of asbestos fibres was brushed onto a flat concrete roof, then the coating was sprayed with a CaCl 2  solution.
Patent GB-455280-A (GB)
Title: Improvements relating to wall plugs
IPC: F16B13/02
Filed: 1935-04-13
Abstract: 455,280. Wall plugs. RAWLINGS, J. J., and RAWLPLUG CO., Ltd., Cromwell Road, South Kensington, London. April 13, 1935, No. 11512. [Class 89 (i)] A wall plug made of cast or moulded material is made of longitudinal segments a which are united at the ring shaped end b. The gaps between the longitudinal segments are bridged by exterior transverse ribs e which are split when the plug is expanded on driving in the screw of other fastening device. The plug may be provided with longitudinal ribs d and the head c may be enlarged and provided with the fins f.
Patent GB-698361-A (GB)
Title: Improvements in or relating to wound board machines
IPC: D21F7/04
Filed: 1951-05-17
Abstract: 698,361. Wound-board-making machines. WALMSLEYS (BURY), Ltd., and TEMPERLEY, J. May, 15, 1952. [May 17, 1951] No. 11513/51. Class 96. The wet board 4 on the make-up roll 5 of a wound-board-making machine is cut by a knife 8 as disclosed in Specification 672,790 and suction from a box 6 applied through a rubberlipped mouth 6a and through a travelling felt 1 strips the severed edge of the board 4 from the roll 5. The travelling felt 1 may be intermittently driven, and may be moved into and out of contact with the make-up roll 5 by levers 7a, 7b, and 7c &c. it may feed the sheets to presses or to a dryer. A scraper as described in Specification 672,791 may also be used with the roll 5.
Patent GB-591430-A (GB)
Title: Improvements in boiler furnaces
IPC: F22B7/20
Filed: 1945-05-07
Abstract: 591,430. Air supply to furnaces. BRACEWELL, C., and BRACEWELL, B. May 7, 1945, No. 11516. [Class 51 (i)] In a device for supplying air to a boiler furnace above the fuel on.the, grate P, either or both sides of the upper furnace wall are perforated at intervals as at M, O, pipes leading from these openings to corresponding openings L, N below the grate. The shape of the openings may be varied and the outlets M, O &c. extend from a point behind the dead plate to above the firebridge.
Patent GB-1435202-A (GB)
Title: Aircraft automatic flight control system
IPC: G05D1/00
Filed: 1973-06-27
Abstract: 1435202 Automatic control of aircraft SPERRY RAND CORP 27 June 1973 [14 July 1972] 11536/75 Divided out of 1435201 Heading G3R The description is identical to that of the Parent Specification but the claims relate to the control of the electric servomotors, particularly the torque limiting aspect thereof.
Patent GB-144054-A (GB)
Title: Improvements in rubber stamps
IPC: B41K1/36
Filed: 1919-10-08
Abstract: 144,054. Burroughs, E. S. Oct. 8, 1919. Hand-stamps.- To enable the subject - m a t t e r which the stamp prints to be identified readily, and to facilitate positioning t h e stamp correctly, a printed impression taken from the stamp on to a paper &c. card is mounted on the back-plate 1 of the stamp 9, and is protected and held in position by a cover 11 of mica &c., which is held in position by an open brass &c. frame 3 formed with depending edges which extend over the long sides of the plate 1, and with a transverse element 4 for receiving a securing-screw 7. The parts 1, 4, 11 are perforated for receiving the screw 7, and the stamp 9 is secured to the plate 1, after the handle is attached by the screw 7. The cover 11 may be dispensed with, and the print is then protected by varnish.
Patent GB-129800-A (GB)
Title: Improvements in Moulds for Printers' Leads and the like.
IPC: B41B5/12
Filed: 1918-07-17
Abstract: 129,800. Lanston Monotype Corporation, (Lanston Monotype Machine Co.). July 17, 1918. Single-type composing and casting machines; moulds. - Relates to moulds of the kind described in Specifications 7202/15 and 113,262 for producing strip material in the form of printers' leads &c. in sections which may or may not be fused together. A mould for producing strip material of the lesser point sizes, say, below two points, is formed with means, in proximity to one of the walls, to retard the dissipation of heat from the mould cavity. A liner 50 is provided to contact with the side block 8 of the mould and form one of the walls of the mould cavity. The rear surface of the liner is grooved in proximity to the mould cavity, so as to produce the contacting area and so retard the passage of heat to the side block. The grooves may be vertical as shown at 56, Fig. 4, or both horizontal and vertical as shown at 56, Fig. 4. Thegrooves stop short of the casting orifice to avoid imperfect casts.
Patent GB-125292-A (GB)
Title: An Improved Combined Carbureter and Vacuum Fuel Feed Device for Internal Combustion Engines.
Inventor: JAY WEBB
IPC: F02M37/02
Filed: 1918-07-17
Abstract: 125,292. Jay, W. July 17, 1918. Vacuum apparatus.-A spray carburettor and vacuum fuel-feed apparatus are combined in such a manner that the Venturi tube of the carburettor is formed integral with or as part of the top or cap member of the vacuum tank. The tank 1, in which vacuum and pressure are alternatively created through conduits 14b, 14<a> provided with float-actuated valves 4, 5, is enclosed in the service reservoir 2 which feeds the carburettor. The Venturi tube 10 of the carburettor is formed in one with the cover 8 of the vacuum tank and contains a throttle valve 20 actuated by an arm 25 and spindle 24 and to a notch 20<c> in the periphery of which fuel is supplied through a bore 21b, central aperture 20<a>, and radial passage 20<b>. The bore 21b communicates with the reservoir 2 through conduits 22, 27 and a pipe 28 with a looped depending portion 28b which serves to trap fuel and retain it near the discharge point, an aperture 28<c> preventing siphon action. The bore 14<b> communicates with the Venturi passage through aperture 14<d>. Fuel from the low level tank is drawn through the pipe 13<a>. In a modification, the Venturi tube is vertical and is attached by a web to the cover 8.
Patent GB-799928-A (GB)
Title: Improvements in and relating to central buffing and draw gear
Inventor: SPENCER JACK CROSLAND
IPC: B61G9/02
Filed: 1954-04-23
Abstract: 799,928. Combined buffing and drawgear. SPENCER, MOULTON & CO., Ltd., G. April 18, 1955 [April 23, 1954], No. 11790/54. Drawings to Specification. Class 103(5) In a combined buffing and and draw gear having a spring unit with tandem springs the stools are formed with the legs separate from the intermediate followers the legs being welded, screwed or dowelled to the followers. Specification 792,960 is referred to.
Patent GB-1411242-A (GB)
Title: Hairpieces
IPC: A41G3/00
Filed: 1972-05-24
Abstract: 1411242 Attaching hairpieces J C FORBES 22 Aug 1973 [24 May 1972] 11804/75 Divided out of 1411241 Heading A4V A method of fitting a hairpiece by means of elastic anchoring elements attached at the periphery of the hairpiece foundation, which are wrapped around live hairs of the wearer's scalp and so clamped by clamping devices. The anchoring elements may be strips of elastomeric material e.g. rubber or synthetic rubber and the clamping means may be copper wire wrapped round the anchoring elements or spring clips. The wire or clips may be coated with a plastics material or synthetic rubber after fitting. The hairpiece is preferably that described in Specification 1411241.
Patent GB-1398796-A (GB)
Title: Rockdrilling machine
IPC: E21B17/03
Filed: 1973-03-12
Abstract: 1398796 Rock drill ATLAS COPCO AB 12 March 1973 [10 March 1972] 11825/73 Heading B3C [Also in Divisions F1 and B4] A rock drilling machine comprises a fluid pressure driven impact hammer device 1, a fluid pressure driven rotary drive motor 2 situated behind device 1 for rotating the drill rod 4, and a slide 3 for guiding device 1 along a beam 14. Slide 3 comprises a plate 21, bars 22, 23, connected to the plate by screws 24, a rear part 29, and an end plate 30, and the slide is moved along the beam 14 by a lead screw 15. Rod 4 is rotated by a gear 57 driven by motor 2 through gears 81, 31, a shaft 25, and a gear 28. The hammer device comprises shoes 65, 66, which rest on bars 22, 23, of slide 3, the device is connected to the slide by long screws 10, 11. A muffling cover 5 is connected to bars 22, 23, by screws 12, 13. Reversible two-stage rotary motor 2 comprises a housing 72, front and rear plates 71, 73, and three gears 77, 78, 79. Air is selectively supplied and exhausted to and from nipples 75, 76, and the exhausted air is conducted through rear part 29 and under the muffling cover 5.
Patent GB-984168-A (GB)
Title: Process for the production of 6-aminopenicillanic acid
IPC: C07D499/42
Filed: 1962-03-28
Abstract: 6-Aminopenicillanic acid is produced by effecting enzymatic cleavage of phenoxymethyl penicillin or a salt thereof with the micro-organism Pleurotus ostreatus of the class of basidiomycetes or with material derived from the said micro-organism and containing the cleaving enzyme.
Patent GB-970500-A (GB)
Title: Improvements in or relating to the production of coloured aluminium
Inventor: KAPE JAMES MICHAEL
IPC: C25D11/14
Filed: 1962-03-28
Abstract: Aluminium or alloys thereof are anodized by treating with a concentrated oxalic acid solution containing 8% by weight of the acid or more up to saturation, at below 25  DEG C.  Preferably 15-25  DEG C. is used for 50-90 minutes to give a film of oxide at least 0.0005 inch thick. The films are coloured, and are made uniform over the surface, by agitating the electrolyte, e.g. by air injection.  Alloys containing Mn, Mg, Cu and Si give different colours, which are described.