baber/WOPTO huggingface dataset:
Patent GB-383494-A (GB)
Abstract: 383,494. Aircraft with tiltable propellers. MARMONIER, L., 146, Avenue Felix Faure, Lyons, France. Feb. 24, 1932, No. 5524. Convention date, March 10, 1931. [Class 4.] An aeroplane has statically balanced engines and propellers a, b normally set parallel to the line of flight but capable of being tilted by servomotors 9 for climbing or descending, the pitching couple of the servomotors being counteracted by movements of an auxiliary elevator 3. The propellers are mounted in pairs in staggered relation and rotate in opposite directions to counteract gyroscopic disturbances. The engines pivot with the propellers, and two, four, eight or twelve may be used, their resultant thrust passing through the centre of gravity of the machine. The machine is fitted with an automatic stabilizer acting on an elevator 4. A vane 21 acting as a loss of flying speed indicator may act on the servomotors to tilt the propellers, and when in an air pocket means may be provided for preventing the operation of the surface 3 and therefore causing the machine to plunge as the propellers are tilted upwards. A vane 22 responsive to side gusts acts on the automatic device which is not described. There may be a usual tractor propeller in addition to the tiltable propellers.
Patent GB-375299-A (GB)
Title: Improvements in and relating to crossheads
IPC: F16C5/00
Filed: 1930-12-19
Abstract: 375,299. Crossheads. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(National Supply Corporation ; 120, Broadway, New York, U.S.A.) Dec. 19, 1930, No. 38368. [Class 122 (i).] A crosshead arrangement for coupling two rods in the power transmission to oil well pumps of the type in which the downstroke is gravity operated comprises two guide rods 9, secured to a foundation, upon which slides a block 10 secured by rods 17 to the rod connected to a well pump. A rod 12 slides in the block and is connected to the actuating eccentric. A pin 16 connects the crosshead 10 and the rod 12, passing through a slot 15 in the latter. A latch 24 is provided for holding the block in position so that the pin 16 may be inserted or removed for disconnecting the pump from the actuating eccentric. The slot 15 is of such length that should the connection between the block 10 and the pump be broken, the block will be drawn to the left-hand end of the guide and the rod 12 will continue to reciprocate.
Patent GB-1191526-A (GB)
Title: Rear Doors in Station Wagons.
IPC: B60J5/10
Filed: 1967-08-21
Abstract: 1,191,526. Vehicle doors. FORD MOTOR CO. Ltd. 21 Aug., 1967 [24 Aug., 1966], No. 38406/67. Heading B7J. [Also in Division E2] A station wagon has at the rear a door/tailgate 12 which can be opened by an outside handle to swing about a vertical axis along its left-hand edge or by an inside handle to drop about a horizontal axis along its bottom edge as a tail-gate, and, for this purpose, it has on its left-hand edge an upper latch released by operation of the inside handle only and on its right-hand edge upper and lower latches, the lower one of which is released by operation of the outside handle only and the upper one of which is released by operation of either handle. The upper left-hand latch and the lower righthand latch act as hinges when the door is operated as a door and as a tail-gate respectively, and at the bottom left-hand corner a double-hinge permanently connects the door to the body. The latter comprises a vertical pintle 21, Fig. 2, carried by a plate 16 secured to the door 13, and a block 24 pivoted in the pintle 21 and carrying a horizontal pintle 23 on which pivots an arm 22 of a plate 18 secured to a body frame member. The door carries, on a bracket 31, a pin 29 which engages an arm 27 loaded by a spring 28 to check the door. A torsion bar extends through the door to counterbalance it when used as a tail-gate. Its lefthand arm 85 is pivoted to a link 86 to permit swinging of the door about the vertical axis.
Patent GB-959253-A (GB)
Title: Improvements in or relating to tower cranes
IPC: A23L17/00
Filed: 1962-10-10
Abstract: 959,253. Erecting tower cranes. ETABLISSEMENTS WEITZ S.A. SOC. LES FILS DE JULES WEITZ, CHANTIERS ET ATELIERS DE CONSTRUCTION DE LYON WEITZ REUNIS. Oct. 10, 1962 [Nov. 6, 1961], No. 38418/62. Heading B8B. So that a section 9, Fig. 1, of a tower crane may be placed in position by the tackle block 8, a lever 10, one end 12 of which bears and slides on the underside of the jib 5 so that the section can be moved into a vertical position over the tower by the carriage 7, is attached to the section. Successive positions of the section during assembly are indicated at 14, 15, 16, 17. The lever 10 comprises a bar 24, Fig. 2, which is engaged by the crane hook, a roller 25 and guides 26 which abut the jib, and end plates with holes 27 to which the section 9 is attached. Alternatively the connection to a section may be through a triangulated framework which provides means for adjusting the slope of the element secured thereto.
Patent GB-1524685-A (GB)
Title: Charge-transfer devices
IPC: H01L29/10
Filed: 1975-09-19
Abstract: 1524685 Charge coupled devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 Sept 1975 [24 Sept 1974] 38587/75 Heading H1K The transfer electrode structure of a charge transfer device is made by first forming lower and upper layers of insulation over the channels material, the upper layer being impervious to oxygen and selectively etchable with respect to that of the lower layer, forming first electrodes of an oxidizable material from a deposited layer and providing them with an insulating layer by surface oxidation, and then etching away the parts of the upper layer between the electrodes and depositing further electrodes over the exposed parts of the lower layer to interlace with and partially overlap the first electrodes. In one device so formed (Fig. 1), packets of majority carriers are injected from source diffusion 7 into an N-type silicon channel capable of being completely depleted [of such carriers by sub-breakdown fields and isolated by back-biasing of its junctions with P-type substrate 5 and the isolating ring 16, which optionally extends to the substrate, and are read out at diffusion 9. The diffused or implanted regions 7, 9, 16 are formed before provision of the lower insulating layer 12 of genetic oxide 800A thick and the upper layer 13 of deposited silicon nitride 350 thick. The first electrodes 10 of boron- or phosphorus-doped polycrystalline silicon (or aluminium or tantalum) are heated at 1000 C. in an oxidizing ambient to provide a 0À3 Á thick oxide coating 14 and are then used to mask etching of the nitride in hot phosphoric acid. After providing contact windows in the oxide aluminium is deposited and patterned by photoetching to define the second transfer electrodes 11 and contacts 6, 8, 19 to the diffusions, and the device annealed in hydrogen at 450 C. In another embodiment, after removal of the nitride between electrodes 10, a layer of alumina, or silicon nitride alone or coated with silica is applied on the electroded face and a gettering layer of phosphorus-doped silica deposited on both faces, the layers applied to the electroded face etched off again and the device heated at 1000 C. in an oxidizing medium to complete gettering and to increase the oxide thickness, except under electrodes 10, by 200. The remaining electrodes are formed as before. Variations include provision of a highly doped skin on the surface of lightly doped channel 3, interconnection of electrodes 10 and 11 and use of the same electrode structure in BBDs and minority carrier CCDs.
Patent GB-1017752-A (GB)
Title: Improvements in or relating to the manufacture of flat glass
IPC: C03B18/00
Filed: 1962-10-11
Abstract: <PICT:1017752/C1/1> In the manufacture of flat glass, preferably in ribbon form wherein a ribbon of glass is advanced along a bath of molten metal, over which is a headspace defined by a tunnel and end walls to the tunnel, a channel for the passage of the glass relative to an end wall of the tunnel is sealed against ingress of external atmosphere by creating a laminar flour of a protective gas through the channel for the glass in a direction opposing the direction of ingress of external atmosphere.  A ribbon of glass is fed on to a bath 10 of molten tin, a headspace being deformed by roof 16, side walls 17 and end walls 18, 19 of a tunnel.  A separate chamber 31 between the rollers 6, 7 and inlet end wall 18 has a roof 30, there being also a chamber 44 between outlet end wall 19 and the front wall 45 of an annealing lehr.  A protective atmosphere is fed through pipe 20 into the headspace, which is divided into two by wall 36.  The lower end of inlet end wall 18 preferably has two feet 25, 26, a groove 27 in the centre, and in the groove a pipe 29 out of which is passed the protective gas at a pressure sufficient to minimize turbulence and to prevent ingress of the external atmosphere, the gas flow thus created being laminar.  The outlet end wall 19 and the end wall 14 of the tank also have grooves 47, 49 and pipes 48, 50 to give rise to a laminar flow of a protective gas at the outlet.  As further protection, a flexible apron 52 extending the full width of chamber 44 is attached to a foot 46 of wall 19, and two flexible aprons 53 covering the gap between the edges of the glass ribbon and side walls of the chamber (see Fig. 6, not shown) overlap with each other over the first conveyer roll 43 in chamber 44. The wall 45 at the front of the lehr has a directionally movable slotted pipe 55 and aprons 57 to prevent ingress of the atmosphere from the lehr.  If necessary a further wall complete with groove and pipe connected to a supply of protective gas may be placed between the end wall 18 and the flow regulating tweel 2 (see Fig. 9, not shown).  The walls 18, 19, 14 may be so constructed as to have only one foot, in which case the pipe through which the gas is passed is movable to control the direction of flow.  Thermal regulators 32, 33, 38, 37 control the temperature of the glass ribbon so that it is sufficiently stiff to be taken out without being damaged.  The take-out roll 40 is placed in a pit 41 as is described in Specification 1,017,753.
Patent GB-369934-A (GB)
Title: Improvements in high frequency signalling systems
IPC: H03C1/60
Filed: 1930-12-23
Abstract: 369,934. Wireless signalling. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.- (Tournier, M. C. ; 46, Avenue de Breteuil, Paris.) Dec. 23, 1930, No. 38665. [Class 40 (v).] The modulated wave of a highfrequency signalling system is applied to one or more electro - mechanical resonating d e - vices, such as p i e z o - electric crystals, adapted to attenuate the carrier wave while leaving one or both sidebands unaffected, the attenuation being carried to such a point that whilst saving power at the transmitter the receiver is still able to receive the carrier wave and to subject it to amplification independently of the side bands. The carrier is generated in a source O, Fig. 3, and is modulated by a signal source S in a modulator M. The modulated wave passes to the resonator R which attenuates the carrier wave, and thence to an amplifier A and transmitter T. The degree of attenuation of the carrier may be adjusted by varying the air gap between the absorbing crystal and its electrodes. At the receiver, Fig. 4, the received signals are amplified at A, and are then separated into two channels. In one, the pure carrier wave is selected by the resonator R and highly amplified by the amplifier Ac. In the other the carrier and sidebands are passed through a flatly tuned amplifier Ab. The two channels recombine in a detector D feeding a signal receiver R. If desired, one of the side bands may be suppressed at the transmitter. The received waves may be changed in frequency by the superheterodyne method before they are divided into the two channels. Specifications 294,177, [Class 40 (v), Wireless signalling &c.], and 344,869 are referred to.
Patent GB-1081262-A (GB)
Title: Production of formamides
Inventor: WIENER HANS BERTHOLD
IPC: C07C233/00
Filed: 1963-10-02
Abstract: Formamides are prepared from formate ester reactants and ammonia or primary or secondary amine reactants in which one reactant boils at a lower temperature than the other which in turn is more volatile than any product of the reaction, by introducing the most volatile reactant as a gas or vapour or so that it forms a gas or vapour at a level in a distillation column down which there is passed the less volatile reactant, the still being such that it has a sufficient number of theoretical plates above and below the point of introduction to prevent a substantial proportion of the more volatile reactant from emerging from either the top or bottom of the still under the conditions used.  The less volatile reactant may be supplied at the top of the column in excess of that required for the reaction, such excess being allowed to pass from the top of the column as a vapour which is condensed and collected. The product of the reaction may be collected in a boiler at the base of the column at a temperature such that some of the product is returned to the column.
Patent GB-1083908-A (GB)
Title: Method for producing alkyl and alkenyl tin halides
IPC: C07F7/22
Filed: 1965-09-13
Abstract: Alkyl or alkenyl tin halide (not fluoride) mixtures consisting mainly of dialkyl or dialkenyl tin dihalide are prepared by reacting metallic tin at elevated temperatures (90-210 DEG  C.) with an alkyl or alkenyl halide, in the presence of one or more As and/or Sb halides as catalyst in total amount 1-8 mole per cent based on the tin.  A secondary catalyst comprising dialkyl or dialkenyl tin dihalide, with the same alkyl or alkenyl groups as the desired product may be added in amount 2-6 mole per cent.  An excess of alkyl or alkenyl halide is prepared, i.e. a mole ratio Sn : RX of 1 : 3 to 7, and if a less reactive alkyl or alkenyl halide is used (e.g. C6-C12 alkyl chlorides), the addition of the more reactive bromide or iodide in amount 0.2 to 1.3 and 0.1 to 0.4 moles per mole of tin is advantageous.  A solvent is not necessary except as a diluent for rapid reactions, and water should be excluded or, if present, continuously removed by azeotropic reflux distillation.
Patent GB-1021573-A (GB)
Title: Gas washing apparatus
IPC: B01D47/02
Filed: 1962-10-15
Abstract: 1,021,573. Gas-scrubbers; spray-producers. AJEM LABORATORIES Inc. Oct. 15, 1962 [Oct. 16, 1961], No. 38938/62. Headings B1R and B2F. In a gas-scrubber a stream of gas enters through an inlet 14 and passes upwardly through a funnel-shaped passage 16 where it is sprayed with spray generated by a rotating cage 24 supplied with liquid by an impeller 62 rotating within a tube 84 with an outwardly flared upper section 92 and with its lower end immersed in the liquid in the bottom of the scrubber, the impeller having a frusto-conical hub 62 with helical blades 68. The pitch of the blades increases upwardly and bends in the lower portions of the blades may be provided to increase the pitch sharply. In a modification the hub of the impeller may be cylindrical and in this case the lower portion of the tube 84 may be downwardly and outwardly flared. The position of the upper section 92 may be adjusted.
Patent GB-960137-A (GB)
Title: Emulsifiable mineral oil compositions
IPC: C10M173/00
Filed: 1962-10-15
Abstract: The emulsifiable composition of the parent Specification additionally contains 0.01-1.0 wt. per cent of an alkali metal dithiocarbamate having the formula <FORM:0960137/C4-C5/1> where M is alkali metal, R1 is hydrocarbyl, and R2 is hydrogen or hydrocarbyl, or a mixture thereof with an alkali metal mercaptobenzothiazoles. The compositions may contain as optional addition a polyvalent metal dithiocarbamate, an alkylene glycol or ether derivative thereof, a phenol or amine or mixtures thereof. Many examples of these optional additives are given. The compositions may be emulsified with 20-45% of water which may contain a corrosion or wear inhibitor selected from inorganic nitrites, nitrates, chromates and phosphates, and alkali or alkaline earth metal acetate or propionate.  The emulsions are useful as hydraulic fluids.  Many examples of oil compositions and emulsions are given in which many of the optional additives referred to above are included.
Patent GB-1417637-A (GB)
Title: Hand tool
IPC: B25B13/00
Filed: 1973-08-17
Abstract: 1417637 Pliers ROLLS ROYCE (1971) Ltd 19 Aug 1974 [17 Aug 1973] 39080/73 Heading B4W [Also in Division B3] A pliers type tool has jaws 15, 16 shaped to grip a nut of double-hexagonal shape. The jaws lie in a plane at an angle, e.g. 45 degrees, to the general plane of the tool.
Patent GB-1517976-A (GB)
Title: Circular slide rule suitable for use in determining the electrolyte deficiency in infusion therapy
IPC: G06C3/00
Filed: 1975-09-24
Abstract: 1517976 Medical infustion therapy calculator SALVIA-WERK GES ZUR HERSTELLUNG CHEMISCHER UND PHARMAZEUTISCHER ERZEUGNISSE mbH 24 Sept 1975 [3 Oct 1974] 39198/75 Heading G4B A medical slide rule for determining electrolyte deficiency in the extracellular space comprises a disc 12 bearing three scales representing respectively values of body height (cm), body weight (Kg) and measured electrolyte deficiency per unit volume of serum from the extracellular space (#m Val), and a disc 10 bearing a scale (m Val) of values for the deficiency to be determined. In use, lengths of the scales cm, Kg and #m Val (corresponding to known values of height, weight and deficiency per unit volume) are added around an arc of scale mVal starting from the origin thereof, the deficiency to be determined then being read off on scale mVal. Disc 10 also bears a scale ECR representing values of the magnitude of the extracellular space, a particular value of which can be determined by adding lengths of scales cm, Kgaround scale ECR. The other side of disc 10 may bear scales and be overlaid by a disc similar to disc 12 but graduated for calculations apertaining to children. The outer ends of cursor 16 and a cursor on the other side of the calculator may be joined by a formation which frictionally engages the disc 10, Figs. 2 and 3 (not shown).
Patent GB-1014619-A (GB)
IPC: C14C3/24
Filed: 1963-10-04
Abstract: Leather is produced by tanning a skin in a strongly acidic aqueous medium having a pH between 1.5 and 3.5 and comprising an oxidizing agent, a mono- or poly-nuclear phenolic compound or aniline, and, if desired, sodium chloride and acetone.  The said pH may be attained by the presence of hydrochloric or sulphuric acid.  Specified phenolic compounds are: phenol, hydroquinone, resorcinol, naphthols, e.g. b naphthol, o, m and p cresol, hydroxydiphenylenes, hydroxydiphenyl methanes and hydroxyphenyl sulphones.  The oxidizing agent may be a campound of hexavalent chromium, e.g. potassium dichromate, potassium ferricyanide or potassium permanganate. The skin may be treated with the phenolic compound or aniline before or after being treated with the oxidizing agent.  The tanned skin may then be treated with a weakly alkaline aqueous medium, e.g. containing sodium carbonate or hydroxide, having,e.g., a pH between 8 and 9, followed by treatment with a weakly acidic aqueous medium having, e.g., a pH of 5.  The resulting leather may be after-tanned with a vegetable or synthetic tanning agent.  Leather tanned with aniline and potassium dichromate is black, and leather tanned with a cresol is light-coloured and water-repellant.
Patent GB-1347304-A (GB)
Title: Process and apparatus for the automatic control of a variable
IPC: H02P23/00
Filed: 1971-08-23
Abstract: 1347304 Automatic control systems SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N V 23 Aug 1971 [25 Aug 1970] 39349/71 Heading G3R A variable control system with proportional and integral action includes a signal limiting arrangement in which the magnitude of the limit may be determined by the error signal or by measurement of a controlling parameter of the system. In the system shown in Fig.1, a ship's propeller 1 is driven by a steam turbine 2. The speed of rotation of the propeller shaft is detected by a meter 5 which feeds a signal n b  to a circuit 6 for comparison with a demand signal n a . The resultant error signal is passed to'a comparator 7 which also receives a signal X from a differentiating feedback network 12. A high-gain amplifier 8 forms a signal Z which is passed to an integrator 11 by way of upper and lower limit circuits 9, 10. The integrated output I is fed back to the network 12, and is also used to control a steam valve 4 in the supply line 3 to the turbine 2. In a modification, Fig.3 (not shown), a function generator, (16) transforms the signal I into limits (+L, -L) for circuits 9, 10 such that the magnitude of L increases for small values of I. In a further arrangement, Fig.4 (not shown), the rate of flow in steam line 3 is measured, differentiated, and compared with a reference value to determine values for the limits (+L, -L) which will limit the maximum rate of change of steam supply to the turbine. The system may employ electric, pneumatic, or hydraulic signals in analogue or digital form. A digital computer may be included. In addition to ship propulsion, the system may be used to control the movement of a crane or a radar aerial.
Patent GB-1066315-A (GB)
Title: Light alloys usable under high temperatures, process therefor and application thereof
IPC: C22C21/00
Filed: 1963-10-09
Abstract: A cast aluminium base alloy comprises  ..Mn 2.2 - 6% ..Fe 0.05% minimum .optionally.Ti 0.01% minimum .one or more.Cr 0.05% minimum ..Co 0.05% minimum ..Ni 0.05% minimum ..Zn 0.01% minimum .and.Si 0.3 - 4% .optionally.Mg 0.1 - 4% .one or more.Cu 0.1 - 4% ..Zn 0.1 - 4% ..Bi 0.05 - 1% ..Pb 0.05 - 3%  the balance being aluminium apart from impurities. The alloy is of hypereutectic or hyperperitectic character, the manganese content is such that the ratio of Mn to Fe and to each of the other transition elements is at least 2 and is characterized in that they contain finely dispersed Al6 (Mn Fe)1 and Al4 (Mn Fe)1.  The alloy may be pressure die cast without a parting medium and the cast body may be worked.  The alloy may be prepared by adding the alloying additions, as such or as master alloys, to superheated aluminium and may be inocculated with a carbon containing compound to improve dispersion of the intermetallic compounds.