baber/WOPTO huggingface dataset:
Patent GB-648645-A (GB)
Title: Improvements in ground based night-flying visual aids for aircraft
IPC: G08G5/00
Filed: 1948-07-16
Abstract: 648,645. Visual landing aids for aircraft. McCLEMENTS, A. July 16, 1948, No. 19107. [Class 118 (ii)] [Also in Group XI] To indicate at night the direction of the wind to the pilot of an aircraft a wind-operated screen is arranged to cast an elongated shadow on an illuminated patch of the landing ground. Light from a lamp 7 mounted on a wheeled tripod 3 is directed by a lens 8 and a conical reflector 11 to give all-round illumination of the ground below the lamp and a screen 18 on the end of a boom 14 rotatably mounted on a vertical tube 12 and carrying at its other end a wind vane 15 intercepts the light over a narrow angle in azimuth to cast a shadow in the up-wind direction. An approach path indicator comprising a lamp 20 and a box-like structure of vertically arranged filters 25 ... 27 and opaque screens 29 ... 32 adapted to emit non-overlapping coloured beams extending over predetermined angular ranges in elevation may be mounted above the wind indicator with the box-like structure attached to the rotatable boom 14 so that the coloured beams are only visible from the down-wind direction and from a small angle on either side thereof. Downwardly directed light from the lamp 20 is intercepted by a cylindrical screen 23. Mechanism may be provided to give the lamp 20 a flashing characteristic so that it may also serve as an identification beacon for the landing ground ; alternatively the lamp 20 may be distinctively coloured. In an alternative form of construction the whole installation including the lamp 7, the reflector 11, screen 18, the wind vane 15 and the approach path indicator is constructed as a unit the parts of which are relatively immovable and is mounted for rotation as a whole about a vertical pivot axis.
Patent GB-1113468-A (GB)
Title: Improvements in and relating to apparatus for opening closed containers
Inventor: EVERINGTON WILLIAM TOM
Filed: 1966-05-02
Abstract: 1,113,468. Opening containers. J. LYONS & CO. Ltd. 17 May, 1967 [2 May, 1966], No. 19141/66. Addition to 1,042,060. Headings B8D and B8T. The machine disclosed in Specification 1,042,060 is modified by the addition of a unit 52, 53, which sprays the unopened cans, and a reciprocable spray head 41 which enters the upper hole in each can, after it is opened by a piercer 5, and sprays the can interior, e.g. with hot water. As the member 5 descends, a bar 47 engages a lever 46 to cause a rod 42 carrying the head 41 to be driven downwards. A valve 48 supplying the head 41 is opened only when the head is lowered. A latch 49 holds the mechanism controlling the head 41 down, against the action of a return spring 45, until the member 5 is at the top of its stroke.
Patent GB-139409-A (GB)
Title: An improved drive for the distributing gear of internal combustion engines
IPC: F01L13/00
Filed: 1919-08-02
Abstract: 139,409. Charles, L. A. Aug. 2, 1919. Valve-gear; regulating.-Valve-gear applicable to Diesel engines of the type described in Specification 129,606, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for], with mearns for starting and regulating the speed, comprises a cam-shaft 1 capable of axial movement carrying for each cylinder a cam 6 for admitting air, an exhaust cam 9, an injection-air cam 11, and a cam 13 controlling the fuel-admission needle valve. The cam 6 is of constant section; the cam 9 is of constant section, but is provided with a projection 9'; and the cams 11, 13 are of varying section. The camshaft 1 abuts against a ball-bearing thrust collar 16 located within a bush 17 engaging a screwthread 18 on the interior of a sleeve 19 held in the casing by a key 20. The bush 17 is turned to move the cam-shaft axially by worm gear 23, 24 and hand-wheel 25. An extension 26 on the cam-shaft, when the latter is moved to the left, opens a valve and through a rotary distributor admits compressed air to the cylinders for starting-up. To start the engine, the cam-shaft 1 is moved to the left, opening the air valve and admitting compressed air to all cylinders, the projection 9' serving to lift the exhaust valve during the compression stroke. The cam-shaft is moved to the right to a position to give the required engine speed, or to the extreme right to stop the engine. An automatic governor driven by the engine, or a safety governor brought into operation by a sudden drop of load, may actuate the wheel 25.
Patent GB-942291-A (GB)
Title: Improvements in or relating to safety lamps
Inventor: JACKSON HELEN MONICA
IPC: F23Q3/00
Filed: 1961-05-27
Abstract: 942,291. Piezo-electric generators. WOLF SAFETY LAMP CO. (WM. MAURICE) Ltd. Aug. 14, 1962 [May 27, 1961], No. 19209/61. Heading H2A. [Also in Division F4] A piezo-electric spark generator incorporated in a wick or gas safety lamp comprises a cylindrical stick assembly of two pieze-electric crystals separated by a disc conductor 24 in contact with one end of a high voltage lead 12, and a pair of conducting pressure pads. Pads of electrically conductive rubber are interposed between the crystals and pressure pads to distribute the pressure. The assembly is disposed in a bore 27 in a block of insulating material 28 in a housing 11 removable from the lamp. One pressure pad abuts a contact pad on the inside of the housing 11 and the other pressure pad has a curved outer end contacting the end of the shorter arm of a curved lever having a fulcrum on the inside of the housing 11. The longer arm 34 of the lever extends to a double lift cam 35 carried by a spindle 36 having a rib 37 for engaging a slot 38 in a key 39. Rotation of the key applies pressure to the generator assembly. The spindle 36 is journalled in a bush 43 secured to the housing 11 and fitting easily into a sleeve 44 secured and sealed to the gas container of the lamp.
Patent GB-422554-A (GB)
Title: Improvements in and relating to reflector devices for kerbs, road surfaces, sign posts and the like
IPC: E01F9/053
Filed: 1934-06-06
Abstract: 422,554. Road - surface markings. DUNN, J. T., 1, Percy Road, and WILKINSON, G., 17, Briar Avenue, both in Whitley Bay, Northumberland. June 6, 1934, No. 19453/33. [Class 3 (ii)] [See also Groups XX and X] A reflector device for a kerb, the surface of a road, a sign-post &c. comprises a number of differently - coloured hollow glass members having prismatic reflecting projections &c. on their internal surfaces, and disposed back-toback so as to exhibit contrasting colours in different directions. In Figs. 1 and 2 the hollow glass member a has the shape of half a dome connected by a waist b to a base c and having prismatic reflecting elements d on its inner surface. Two of these members a are connected together back-to-back and embedded in a kerb &c. In Fig. 7 the members a<1> are connected by a bolt f<1> so as to lie one on each side of a grooved wheel f engaging upwardlycurved guides g in a casing h fixed in the kerb e. Should the reflector be struck by a passing wheel &c. it is caused to rise on the guides g and recede into the casing h. The reflector returns under the action of gravity when the wheel &c. has passed.
Patent GB-1419075-A (GB)
Title: Process for manufacturing substituted thiophene compounds
IPC: C07D339/08
Filed: 1972-06-09
Abstract: 1419075 Preparation of 2-acylaminothiophene-3-carboxylic acids IMPERIAL CHEMICAL INDUSTRIES Ltd 9 May 1973 [9 June 1972 29 Aug 1972] 19531/74 and 19532/74 Divided out of 1419074 Heading C2C Substituted thiophenes having the general Formula I wherein R is a hydrogen atom or a hydrocarbon radical are obtained by reacting a compound of Formula II  with cyanoacetic acid, or an alkyl cyanoacetate or cyanoacetamide in aqueous alkaline medium and subsequently acylating the resulting product at a pH between 4 and 10 (which is maintained by the addition of alkali as required), acidifying and isolating the precipitated product. The starting materials of Formula II are dimers of the corresponding mercapto-aldehydes or -ketones of Formula HSÀCH 2 ÀCOR prepared by reaction of the corresponding haloaldehyde or haloketone with NaSH in aqueous medium and these compounds of Formula II are preferably reacted without isolation. Specified acylating agents are acetyl chloride, chloroacetyl choride, acetic anhydride, propionic anhydride, a mixture of formic acid and acetic anhydride, benzoyl chloride, ptoluene sulphonyl chloride, methane sulphonyl chloride, succinic anhydride and phthalic anhydride. The examples prepare compounds of Formula I wherein R is -H or -CH 3  and the acyl group is acetyl, formyl, chloroacetyl or #-carboxypropionyl. In Example 2 the starting material 2,5 - dihydroxy - 1,4 - dithiane is obtained by reacting chloroacetaldehyde with NaSH and in Example 4 the starting material is prepared in situ from chlororacetone and NaSH.
Patent GB-135608-A (GB)
Title: Improvements in and connected with Haulage Wire-ropes.
Inventor: PYBURN GEORGE
IPC: D07B1/06
Filed: 1918-11-28
Abstract: 135,608. Pyburn, G. Nov. 28, 1918. Wire ropes. - Relates to wire ropes for haulage, in which the strands are formed of wires, twisted together with the twist in the same direction as the twist in the laying of the strands, and in which the strands are flattened, the wires being twisted round two wires laid side by side forming a core. The two core wires B are smaller than the outer wires A, and the flattening is effected by nips and rollers before the strands are laid together.
Patent GB-1391375-A (GB)
Title: Fabrication of thick film resistors
IPC: H01C17/065
Filed: 1973-04-25
Abstract: 1391375 Resistors HEWLETT-PACKARD CO 25 April 1973 [5 May 1972] 19695/73 Heading H5H [Also in Division H1] A process for fabricating a thick film resistor upon an element comprises depositing a crystallizable dielectric thermally insulating layer on the element, firing the dielectric layer, depositing a cermet resistive material upon the dielectric layer and firing the resistive material in an oxidizing or neutral atmosphere. As shown, a glass and alumium oxide dielectric 4 of low thermal conductivity is screen printed on to a ceramic, e.g. alumina substrate 5, having a heat sink 6. The dielectric is allowed to dry and then fired in air at a temperature between 850‹ and 1100‹C. for a period greater than 10 minutes typically at 940‹ C. for 5¢ hours. Conductors 2, 3 of gold, palladium, silver, platinium gold or palladium gold alloy are screen plated on to dielectric 4 or substrate 5, and then fired in air in the above temperature range. A thick film resistor 1 containing bismuth ruthenium oxide is then screen plated on to the dielectric 4 in one or more layers of between 0À0005 and 0À01 inch thickness with firing and lapping for each layer or after the final layer, the lapping being used to acquire the required coefficient of resistance or resistor value. The resistor is then annealed and the conductors covered in an abrasion resistant layer 7. The resistor may be used as a thermal printer.
Patent GB-188369-A (GB)
Title: An improved water supply pipe fitting
IPC: E03C1/02
Filed: 1922-04-19
Abstract: 188,369. Burley, G. A. April 19, 1922. Bends; walls &c., securing pipes to.-A bib-cock is connected to the water-supply pipe by means of a wiped joint, a bulge C to form a water buffer, and a flat supporting- plate B with screw-holes for attachment to a wall or support. The bulge C permits the branch A to be spaced a sufficient distance in front of the support to enable the wiped joint to be made without damage to the wall.
Patent GB-1498028-A (GB)
Title: Weighing apparatus
IPC: G01G1/29
Filed: 1975-04-30
Abstract: 1498028 Weighing apparatus W & T AVERY Ltd 30 April 1975 [4 May 1974] 19724/74 Headings G1N and G1W [Also in Division G3] Weighing apparatus includes a load counterbalancing system comprising a unit weight lever 15 to which a unit weight 19a, b, c for effecting capacity change can be selectively applied at each one of a plurality of defined positions thereon, first serving means responsive to deflection of a part 18 of the system to give a signal where valve is proportional to such loading of the system as is not counterbalanced by any applied unit weight or weights, second serving means 21 responsive to the total loading of the system and providing a signal representing the magnitude of the load in terms of incremental proportions capable of being counterbalanced in said system by application of the unit weights, means for selective application of the unit weights automatically in response to the signal from the second sensing means, and read-out means indicating the total load on the system. The load is applied via a link 10 to a weighing lever 12 having a counterweight 13 and connected to lever 15 by link 16. Lever 12 is connected by link 17 to a pair of flexive strips 18 one of which carries strain gauges constituting the first sensing means. Each weight 19 is a 3" steel ball bearing and engages lever 15 by means of a plate 26 having a circular hole and adjustable along lever 15. Solenoids 9 are provided which, when energized support weights 19 clear of lever 15 by means of cups 28. Each solenoid is provided with a dashpot 29. The link 10 is provided with the second sensing means, Fig. 3, in the form of a narrow portion 23 carrying strain gauges 24, 25 connected in a bridge circuit, Fig. 4 (not shown) the output of which is used to automatically apply the appropriate weights 19 to lever 15. The bridge output is applied to a trip switch unit 41 Fig. 5, which comprises six operational amplifiers acting a comparators, the outputs of which control the solenoids via an encoder 42 and a solenoid driver 43 employing triacs. The signal from the strain gauges 34 on the flexive strip 18 is applied to a dual ramp integrator 36, the output of which is displayed at digital display 31. The digital display is also provided with a number of pulses corresponding to the unit weights acting on lever 15 by means of encoder 42, comparator 45 and counter 44. In order to compensate for errors found to occur when the unit weights are added to the lever 15 the reference voltage to the integrator 36 is attenuated at 50 according to the weights added. Each solenoid 9 is arranged to operate a respective micro-switch when energized, which micro-switch switches the supply to the solenoid to a lower holding voltage whereby heating is reduced Fig. 6 (not shown).
Patent GB-805314-A (GB)
Title: Electrolytic precipitation of lead impurities from chromium sulphate solutions
IPC: C25C1/10
Filed: 1956-06-27
Abstract: 805,314. Electrolytic precipitation of lead from chromium sulphate solutions. UNION CARBIDE CORPORATION. June 27, 1956 [June 28, 1955], No. 19840/56. Drawings to Specification. Class 41. Lead impurity is removed from a chromiumcontaining sulphate solution by precipitation by electrolysing the solution at a pH of 1 to 2.25 for more than 35 ampere hours per gallon, preferably for 60 ampere hours per gallon. As described, the invention is applied to the cyclic process for electrowinning chromium of Specification 703,220, the lead-containing solution treated being of chrome alum produced by the use of lead-containing anolyte sulphuric acid from the chromium-depositing cell which employs lead anodes.
Patent GB-147873-A (GB)
Title: Improvements in the tabulator bars of typewriter tabulators
IPC: B41J21/02
Filed: 1920-07-09
Abstract: 147,873. Wanderer - Werke vorm. Winklhofer & Jaenicke Akt.-Ges. July 26, 1918, [Convention date]. Tabulating-mechanism.-A tabulator-stop bar consists of a number of metal strips a, which are formed with one or more rows of punched holes b for receiving the stops, and are assembled with the holes in register and then secured together by bolts or rivets c.
Patent GB-386245-A (GB)
Title: Manufacture of sulphuric acid esters suitable for use in dyeing and printing textilefibres
IPC: C10J3/76
Filed: 1932-07-14
Abstract: The process described in the parent Specification, whereby 1 : 2 : 2<1> : 1<1>-dianthraquinoneazine is reduced and esterified with the aid of an addition product of a tertiary base and sulphur trioxide, in presence of an excess of tertiary base and in presence of a metal, with complete exclusion of free acid, is applied to a halogen derivative of a 1 : 2 : 2<1> : 1<1>-dianthraquinoneazine.  Polyesters (apparently mixtures of tri-and tetra-esters) are obtained, which are suitable for printing purposes on account of their good solubility and small sensitivity to overoxidation.  In an example, dichloro-1 : 2 : 2<1> : 1<1>-dianthraquinoneazine (cf. German Specification 229,166) is treated with pyridine-sulphur trioxide, pyridine and copper power in an atmosphere of nitrogen and at 70 DEG  C. ; caustic potash is added and the solution on concentrating precipitates a tri-ester ; the filtrate yields on evaporation a freely-soluble product which appears to be a tetra-ester.  By adding caustic soda solution instead of caustic potash, warming, filtering and evaporating, a paste of the sodium salts of these two esters is obtained, which is suitable for printing purposes.  In a similar manner a mixture of the polyesters of a trichloro derivative of 1 : 2 : 2<1> : 1<1>-dianthraquinoneazine is obtained. Specifications 247,787, 251,491, and 261,139, [all in Class 2 (iii), Dyes &c.], also are referred to.
Patent GB-792768-A (GB)
Title: Synthetic ester lubricants
Inventor: POTT ANTHONY FRED DORAN
Filed: 1955-07-11
Abstract: The tendency of blends of complex esters and diesters to thicken on storage at low temperatures is reduced by reacting the blend with an alkali metal, washing, and recovering the reaction product from the solids formed.  It may be necessary to add a small amount of alcohol to initiate the reaction.  The blends are those of synthetic ester lubricants having the following formul : <FORM:0792768/III/1> where the groups R are derived from dicarboxylic acids HOOCR,COOH; monohydric alcohols R2OH; monocarboxylic acids R3COOH; and glycols HOR4OH; n is a number between 1 and 6 and when it is fractional it represents the average formula of a mixture of compounds.  The alcohols R2OH are preferably aliphatic, ether, or thio-ether alcohols and desirably branch chained, e.g. oxo alcohols.  In an example a blend comprising 60 per cent dinonyl sebacate, 20 per cent dioctyl sebacate and 20 per cent of a complex ester obtained by reacting polyglycol 200, sebacic acid and 2-ethyl hexanol in the molar ratio 1 : 2 : 2 is reacted with 3 per cent weight of sodium at 150 DEG  C. for 1 1/2 hours.
Patent GB-1429752-A (GB)
Title: Driving pegs into prebored holes
IPC: B27F4/00
Filed: 1974-05-07
Abstract: 1429752 Dowelling; screw sockets WIENFISCHAMENDER METALLWARENFABRIK JOSEF SUSCHNY & SOHNE 7 May 1974 [16 May 1973] 19972/74 Heading F2H A device for driving elements such as dowels or screw sockets 7<SP>1</SP> into bores 14 in a workpiece 15 and comprising a magazine 8 for the elements and a channel 6 along which the elements are driven by a plunger 3, is characterized by the spacing between the foremost position of the plunger and the mouth of the discharge channel being fractionally less than the length of an element. Each element is driven by the plunger by an interposed second element 7<SP>11</SP>, the latter being left protruding by a fraction b of its length from the mouth after the first element is driven. The protruding portion facilitates accurate location of the element in the mouth of the bore prior to driving. The mouth portion 13 of the channel essentially grips the protruding element by being narrower or by means of jaws (16), Fig. 3, or being longitudinally slotted to give a spring grip, Figs. 4, 5 (all not shown). Spring pawls 24 may prevent forcing inwards of the element. The elements may be supplied joined by integral portions 12 which are sheared by the plunger.
Patent GB-427302-A (GB)
Title: An improved process and apparatus for evaporating liquids at low temperatures
IPC: A23C1/12
Filed: 1933-07-14
Abstract: <PICT:0427302/III/1> In evaporating liquids under vacuum by the mechanical work done on an easily liquefiable gas, e.g. sulphur dioxide, ammonia, or methyl chloride, circulated in a closed system, the gas compressed by a pump E is circulated through a coil C where it gives up heat to liquid in an evaporator A and then with reduction of pressure at a valve F through a coil D where it receives heat in condensing the vapours evolved from the evaporator A and passed through a condenser B also maintained under vacuum.  The coil C may be arranged in the form of a drum or roller onto which the liquid is sprayed and evaporated to a dry powder.
Patent GB-123042-A (GB)
Title: Improvements in Spring Hooks and in the Manufacture thereof.
Inventor: BULL FREDERIC
IPC: F16B45/02
Filed: 1918-12-04
Abstract: 123,042. Bull, F., (trading as Bull & Son, P.). Dec. 4, 1918. Spring hooks.-The shank 5 of a spring hook is cast with an abnormally wide slot to receive trunnions 2 cast on the movable limb 1, the trunnions being retained in position by closing the metal of the shank around them. The slot may have recesses 8 opening at one side. A projection 3 to secure the spring 4 is cast on the limb 1.
Patent GB-795458-A (GB)
Title: Derivatives of ª-amino-ª-hydroxy-acids and the manufacture thereof
Filed: 1956-06-28
Abstract: The invention comprises compounds of the general formula: <FORM:0795458/IV (b)/1> (wherein R represents an aralkyl group, R1 a hydrogen atom or an alkyl or phenyl group, and X a benzyloxycarbonyl group), and the manufacture thereof by condensing an a -amino-propionic acid derivative of the general formula: <FORM:0795458/IV (b)/2> with an aralkyl ether of hydroxylamine in the presence of a condensing agent (e.g. an approximately equimolar proportion of an N : N1-di-substituted carbodiimide).  The reaction is preferably effected in an inert solvent with cooling.  In examples: (1) DL-a -benzyloxycarbonylamino - b  - hydroxypropionic acid and O-benzylhydroxylamine are dissolved in tetrahydrofuran, and a solution of N : N1-dicyclohexylcarbodiimide in the same solvent is added dropwise while cooling and stirring, producing DL - a  - benzyloxycarbonylamino - b -hydroxypropiohydroxamic acid O - benzyl ether; (2) and (3) DL-a -benzyloxycarbonylamino - b  - hydroxy - butyric and b  - phenylpropionic acids similarly yield the corresponding butyrohydroxamic and b -phenylpropiohydroxamic acid derivatives.  Starting materials.  DL-a -Benzyloxycarbonylamino - b - hydroxy - butyric and b  - phenylpropionic acids are prepared by benzyloxycarbonylation of threonine and b -phenylserine, respectively, in sodium carbonate solution.  Specification 795,459 is referred to.
Patent GB-187721-A (GB)
Title: An improved button
IPC: A44B1/12
Filed: 1921-07-26
Abstract: 187,721. Kleinmann, E. July 26, 1921. Buttons.-A fabric-covered button is adapted to be assembled by hand. It comprises an upper portion a, having an inturned ledge round which the fabric c is placed, and a lower portion b, having a member b<2> with serrated edge adapted to be sprung into the upper portion and automatically grip the cloth between the serrations and the in turned ledge. The serrations may be formed on a separate spring plate and may be of different lengths.
Patent GB-499407-A (GB)
Title: Improved means for attaching flexible conductors to electric terminals, contacts, orthe like
IPC: H01R9/05
Filed: 1937-07-21
Abstract: 499,407. Electric couplings. BELLING & LEE, Ltd., and HODBY, A. L. July 21, 1937, No. 20139. [Class 38 (i)] A flexible screened conductor is fitted with an open ended sleeve 1 having an internal tapered screw - thread 5 for engagement with the insulation 8 of the conductor and having an integral terminal, plug, socket, &c. or a flange 2 or other formation for attachment to a support such as a screening casing leaving the inner conductor 7 free. The screw thread 5 in the sleeve 1 may overlap the end of the screening braid 9 and may terminate in a cylindrical portion 6 frictionally fitting the screening braid. The sleeve 1 may be drawn out from a sheet-metal flange which may have an extension carrying an integral annular connector concentric with a plug connected to the inner conductor 7. Several such terminating sleeves having bores of different sizes to fit different cables may be made integral with one screening casing.