baber/WOPTO huggingface dataset:
Patent GB-1219556-A (GB)
Title: Improvements in or relating to magnetic contact units
Inventor: WOODHEAD HARRY STANLEY
IPC: H01H51/28
Filed: 1969-06-06
Abstract: 1,219,556. Electric contact devices. STANDARD TELEPHONES & CABLES Ltd. 6 June, 1969, No. 28697/69. Heading H1N. A magnetic contact unit, for operation on energization of a coil or movement of a component of a magnetic circuit which includes a permanent magnet, has an inner magnetic member 40 extending through an aperture in an outer magnetic member 42 in which it is located by a non-magnetic member 41 and a resilient magnetic diaphragm 30 forming the movable contact armature of the contact unit and being formed as a disc with peripheral arcuate arms 31 arranged so that when the disc is attracted to the magnetic member 40 the free ends of the arms rock on a conducting component such as the member 42. In Fig. 4 the member 40 is also an annular fixed contact cooperating with the armature contact disc and the U-shaped free ends 32 of the arms 31 rock on the outer member 42 to close the contacts on attraction between the disc and the member 40. In Fig. 6 the disc 30 is stressed into engagement with one fixed contact 50 and is attracted on operation to the inner fixed magnetic contact 40 to form a change-over contact unit with flux transfer between the disc 30 and the outer magnetic member 42 assisted by extensions 67. The inner magnetic member is not a contact in a normally closed contact set (Fig. 5, not shown). The fixed contact tip may be made from a disc having a layer of gold, copper, silver or silver cadmium oxide on permalloy B welded on the end of the member 40 (Fig. 7, not shown). The contact unit may be used in relays of the types described in Specifications 1,094,334, 1,098,145, 1,099,081, 1,115,401 and 1,131,928 and switches having movable magnets or magnetic components as in Specification 1,213,699.
Patent GB-863653-A (GB)
Title: Portable shelter
IPC: E04H6/00
Filed: 1958-09-08
Abstract: 863,653. Portable shelters. MORGAN, F. June 1, 1959 [Sept. 8, 1958], No. 28707/58. Class 20(1) A portable shelter for vehicles &c. comprises a stationary part consisting of a side and roof member 7 rigid with an end member 2 and a half end member 8, and a movable part hinged to the top of the member 7 and consisting of a roof member 4 hinged to a side member 3, the member 3 being rigid with a half end member 5. The movable part is held by a strut 12 in a first open position as illustrated. The member 4 is bent further back and the member 3 pivoted thereto to assume a second open position as in Fig. 2 (not shown). The shelter may be formed of a framework of wooden bars and tubes covered by sheet material (Fig. 5, not shown, refers).
Patent GB-376580-A (GB)
Title: Improvements relating to reinforcement for concrete and like constructions
IPC: E04C5/06
Filed: 1931-10-16
Abstract: 376,580. Reinforced concrete. REID, P. S., Newlands, Hillside Road, Ewell, Surrey. Oct. 16, 1931, No. 28843. [Class 20 (iv).] A reinforcement, particularly a spacing reinforcement for road construction,comprises continuous lengths of wire &c. having .upper and lower parallel portions d, e and interconnecting vertical parts c. The lengths are assembled, as shown, with the vertical parts c bound by wire, thus enabling the assemblage to be collapsed for transport. The reinforcement may be used for constructing walls.
Patent GB-289051-A (GB)
Abstract: 289,051. Distilleries des Deux - Sbvres. April 21, 1927, [Convention date]. Alcoholic liquids, distilling.-In the usual 3 stage process for obtaining absolute alcohol from fermented mash comprising (1) distilling the fermented mash (2) rectifying the alcohol obtained (3) dehydrating the alcohol by the azeotropic method, economy of steam is obtained by using alcohol vapours from the first stage to supply part or all the heat for the dehydrating column. The rectifying column may also be heated by the alcohol vapours. The fermented mash, preheated in a heat exchanger 4 by the distilled mash, is distilled in a column 1 by steam jets 2, and the column may be kept under pressure by compressed air from a vessel 30 so that the temperature of the alcohol vapour issuing from the pipe 8 is 89‹ C. This vapour is passed through a coil 33 to heat the distilling vessel 22 and through a coil 9 to heat the dehydrating vessel 10. The condensed alcohol is returned to the column 1 through a pipe 14 by an air lift 15 and delivered through a pipe 16 to the dehydrator 10, the vapours from which are condensed in a condenser 18 and separated into two layers in a decanter 19, the upper layer being returned to the column 10 while the lower layer is passed to the column 22. The absolute alcohol is discharged from the column 10 through a pipe 25.
Patent GB-943637-A (GB)
Title: Improvements in and relating to s-triazines
Inventor: HARDY RICHARD JONATHON
IPC: C08G73/06
Filed: 1960-08-22
Abstract: The invention comprises compounds of the formula: <FORM:0943637/C2/1> where R is an unsubstituted or substituted aryl group, e.g. phenoxy, naphthoxy, m-cresoxy or 2,4-dichlorophenoxy; and their production by reacting a compound of formula: <FORM:0943637/C2/2> with ammonia at temperatures up to 100 DEG C. Examples prepare the compound in which R is phenoxy; it is stated that above 100 DEG C. both phenoxy groups are replaced by amino groups.   The first Provisional Specification refers to the production of compounds of the formula: <FORM:0943637/C2/3> where X1 is H, -C(R111)3, -NHR, -NR1R2 OH, -NHCOR or -NHSO2R (where R, R1 and R2 are hydrocarbon or fluorinated hydrocarbon groups and R111 is hydrogen, halogen or a hydrocarbon or fluorinated hydrocarbon group) and E1 is A2N-, -SH, -OR1 or -SR1 (where R1 is unsubstituted or substituted hydrocarbon) by reacting an amine A2NH with a compound: <FORM:0943637/C2/4> where E is -SH, -OR1 or -SR1; at least one A is preferably hydrogen.  The second Provisional Specification relates to compounds of the formula: <FORM:0943637/C2/5> where R11 is hydrogen, halogen or a hydrocarbon or fluorinated hydrocarbon group, at least one R11 being halogen, A is hydrogen or a hydrocarbon or fluorinated hydrocarbon group, and E is -SH, -OR1 or -SR1, (where R1 is an unsubstituted or substituted hydrocarbon group; these compounds may be made by the process described in the first Provisional Specification.  Neither Provisional Specification provides examples other than those given in the Complete Specification.ALSO:Compounds of the formula: <FORM:0943637/C3/1> where R is an unsubstituted or substituted aryl group (see Division C2) are said to form polymers by heating, to give a polymer with the repeating unit. <FORM:0943637/C3/2> It is also stated that 2,4-diphenoxy -6-trifluoro-methyl-s-triazin reacts with diamines to form polymers.
Patent GB-1010600-A (GB)
Title: Improvements in or relating to the automatic measurement of transmission characteristics
IPC: H04B3/46
Filed: 1962-07-30
Abstract: 1,010,600. Control of A.C. motors. NORTH ELECTRIC CO. July 30, 1962 [July 31, 1961]. No. 29200/62. Heading H2J. [Also in Divisions G1 and H3] An arrangement for applying velocity control to brake the servomotors used in an apparatus for measuring transmission characteristics (see Division G1), utilizes a bridge circuit 1104 which is approximately balanced for all frequencies by the proper choice of components. When however the servomotor turns, a voltage is induced in winding 1105 proportional to its velocity component, and the unbalance signal so produced is fed back over a phase-shift circuit 1110 to the servo amplifier 322 to provide a braking action. The use of the bridge prevents feedback of the error signal over the braking control path.
Patent GB-1001776-A (GB)
Title: Arc welding apparatus
IPC: B23K9/007
Filed: 1963-07-24
Abstract: 1,001,776. Control circuits for arc welding apparatus; control of D.C. motors. WESTING- HOUSE ELECTRIC CORPORATION. July 24, 1963 [Aug. 13, 1962], No. 29266/63. Headings H2H and H2J. [Also in Division B3] In consumable electrode arc welding apparatus a common control is provided for selecting the duration of the welding arc and the electrode feed rate. The common control may simultaneously select the welding voltage. In this way when making a number of spot welds or seam welds of timed duration on work of varying thickness or different material, the appropriate welding parameters are selected by a single control. The control circuit, the electrode feed unit and the work feed unit are supplied by A.C. lines AL1, AL2 and the welding supply unit is fed by a 3-phase supply L1, L2, L3. The armature A of the electrode feed motor M is in series with a thyratron 1TU the grid 265 of which is connected to a phase shift circuit including a variable resistor P3. The current through the thyratron 1TU and so the speed of motor M is regulated by a composite bias applied to the phase shift circuit and derived from the potential across a condenser C charged by a voltage proportional the voltage across AL1, AL2, the potential across resistor 1P or 2P during welding or across resistor P4 during arc striking or inching and the combined volt drop across the armature A and a series resistor R13. Welding is started by a switch SWS which actuates relay 5CR and if a water pressure switch PWS is closed relay 1CR connects welding voltage to the electrode E, solenoids VW and VG connect up water and shielding gas and relay 2CR energizes the motor M to feed the electrode E at inching speed. When the arc strikes relays 3CR, 2TD1 actuate in turn to connect resistor 1P in place of P4 to cause motor M to assume welding speed, to energize the work feed unit if in circuit and to interrupt the charging circuit for a timing condenser 4C which discharges through a resistance DR1. After the weld is completed the potential across condenser 4C allows thyratron V1 to fire and energize relay 2TD. A second timer 1TD is actuated and 2CR is released to apply a braking resistor across the armature to stop the electrode feed. The arc burns back until timer 1TD operates its contacts to disconnect the work feed unit and to release the actuated relays. Resetting of the welding voltage, electrode feed rate and arc duration is effected by a switch S1 which energizes a relay CR1 to connect resistors 2P and DR2 in place of 1P and DR1 and actuate a voltage control relay Ml in the welding supply unit. The apparatus may be used for repetition spot or seam welds. Specification 913,565 is referred to.
Patent GB-946899-A (GB)
Title: Dispersing process and apparatus
IPC: B01F3/12
Filed: 1962-07-31
Abstract: <PICT:0946899/C1/1> Apparatus for dispersing a particulate solid in a liquid in the presence of particles of a grinding medium comprises a cylindrical vessel 12 having an inlet 28 at the bottom thereof and enclosing a dispersing zone, a cylindrical screen 49 supported at the top of the vessel by means of rings 14, 51 and enclosing a screening zone, and impellers 34, 34A rotatably mounted in the dispersing and screening zones so that when a solid and liquid mixture is introduced into the vessel via the inlet 28, the mixture is first subjected to the action of the impellers 34 in the dispersing zone and then to the action of the impellers 34A in the screening zone, the mixture being separated from the particles of grinding medium by the screen 49 and passing to a discharge shoot 55.  The screening zone has a removable cover C to enable the particles of grinding medium to be introduced into the vessel 12.  The peripheral speed of the impellers 34A is at least 15% greater than the peripheral speed of the impellers 34.  The diameter of the screen is at least 10% greater than the inner diameter of the vessel 12 and the screening zone has a volume capacity at least 50% that of the vessel.  The vessel is surrounded by a jacket 13 through which a heating or cooling fluid is circulated. Specifications 686,234 and 810,005 are referred to.
Patent GB-761728-A (GB)
Title: Photographic elements containing ultraviolet radiation absorbing compounds
IPC: G03C1/815
Filed: 1954-10-12
Abstract: Mono-azo dyes are prepared by coupling diazotized aniline, metanilic acid, sulphanilic acid, anthranilic acid, p-anisidine, p-toluidine, p-chloraniline, or p-amino benzene sulphonamide with acetyl acetone. The preparation of the dyes from diazotized metanilic, sulphanilic, and anthranilic acids is described. Specifications 598,675 [Group IV] and 655,273 [Group XX] are referred to.
Patent GB-207535-A (GB)
Title: Improvements in radio receiving systems
IPC: H01Q21/06
Filed: 1923-11-21
Abstract: 207,535. British Thomson - Houston Co., Ltd., (Assignees of Rice, C. W.). Nov. 21, 1922, [Convention date]. Aerials; directive signalling; multiplex signalling.-A sharply-directive receiving- system comprises a number of antennµ arranged either endon or athwart the direction of the desired signals, and spaced apart from each other by a substantial fraction of the signal wave-length. Fig. 1 shows a series of three " wave aerials " 1, 2, 3 of the type described in Specification 173,315, arranged end-on to the incoming signals. Reflection transformers R1, R2, R3 transfer the cumulative effects to the rear end of the aerials, where output transformers T1, T2, T3 supply signalling and compensating currents to balanced transmission lines L1, M1 - - L3, M3, which feed through intensity-couplers 11, K1 - - 13, K3 the input circuits of coupling tubes 10, 11, 12. The output from these tubes is Fed through artificial lines PI, P2, P3 and intensity-couplers VI, V2, V3 to a combining tube 16 and thence to the receiver 18. In operation the necessary tune and phase adjustments are first made for optimum signals from each separate aerial by means of the sliders 19 - - 24, and similar adjustments are then made for the combined currents at the points 25, 26, 27 in the second series of artificial lines. For receiving multiplex signals, additional sliders 28 - - 33 are provided to obtain the necessary phase adjustments, and a separate set of coupling tubes, combining-tube and intensity-couplers is installed for each separate signal to be received. Fig. 8 shows two multiple tuned or " infinite velocity " aerials 37, 38 spaced apart broadside on to the incoming signal. Each aerial is bi-directional, but the combination results in a unidirectional receiver. The method is also described in connection with a series of ground antennµ spaced apart in the signal direction and also laterally thereof.
Patent GB-980762-A (GB)
Title: Recovery of metal catalysts for oxidation reactions
Inventor: GOMM ALBERT STANLEY
IPC: C07C51/31
Filed: 1962-07-31
Abstract: Metal catalysts, e.g. copper and vanadium, employed in the nitric and oxidation step of adipic acid manufacture from cyclohexane are recovered by splitting the mother liquor stream remaining after the nitric acid oxidation step and filtration of adipic acid into a main stream and a purge stream, partial evaporation of the purge stream, dilution of the residue therefrom with water to a nitric acid content of 2% to 10% by weight, optionally cooling and filtering, contacting the acid solution with an ion exchange resin in the acid form, and recovering the metals from the ion exchange resin by elution with nitric acid. Suitable resins are in small particle (30-80 B.S.I. mesh) form and are sulphonated polystrene or styrene divinyl benzene copolymers.  An example is given.  Specification 572,260 is referred to.
Patent GB-634896-A (GB)
Title: Improvements in and relating to suspensions for rail, road and like vehicles
IPC: B61F5/16
Filed: 1947-11-04
Abstract: 634,896. Vehicle pivot centres; body mountings. MANUFACTURE DE CAOUTCHOUC MICHELIN. Nov. 4, 1947, No. 29436. Convention date, Nov. 27, 1946. [Classes 103 (vi) and 108 (ii)] In a rail or road vehicle having conventional means of springing for supporting the weight of the body on the wheeled underframe, the pivot centre comprises a central block 1, having a vertical bore 1a for receiving the pivot pin, which is secured within a recess in the frame 3 by means of rubber or the like resilient elements 2, the axes of which are parallel with the direction of movement F F<SP>1</SP> of the vehicle. Lateral projections 4 by abutting against the bearing plates 6 limit the transverse displacements of the block 1.
Patent GB-689831-A (GB)
Title: Tractor mounted one-way plow
IPC: A01B3/46
Filed: 1948-11-12
Abstract: 689,831. Agricultural implements. PURSCHE, H. A. Nov. 12, 1948 [Aug. 14, 1948], No. 29475/48. Class 6(i) A one way plough comprises a frame 40 pivotally attached to hydraulically operated draft links 12, 13 on a tractor 10, the frame 40 including a tubular beam on which is rotatably mounted a carrier 47 having plough bodies 51, 52 hydraulic means being provided on the frame operable independently of the links for turning the carrier on the frame to either of two positions. As shown a double acting hydraulic cylinder 55 is mounted on the frame 40 and is provided with piston rods which are each fitted with a rotatable sheave 58 or 59. A flexible cable is anchored at the centre of the piston and passes over the sheaves and over a drum mounted on the front of the carrier 47. The carrier is latched in position by means of a lug fixed on the carrier, the lug engaging latch plates 86 which are fixed to the frame 40. The carrier 47 has a limited movement along the beam and when the machine is working, the drag of the plough moves the carrier rearwardly to allow the lug to engage in a recess in the plate 86. The cylinder 55 is'connected by a conduit to the tractor hydraulic mechanism in which a piston is moved in a cylinder by fluid under pressure to raise the implement clear of the ground. Operation of a handlever connects the tractor cylinder with the cylinder 55 to cause fluid to flow into cylinder 55 to turn the plough bodies, due to the weight of the implement acting on the tractor piston. Each plough body may be fitted with a separate coulter or alternatively two adjustable coulters 64 are mounted on the frame 40. To regulate the working depth of the plough, a tail wheel (not shown) is mounted on an axle 79 mounted on a pivoted arm 80 which moves between adjustable stops 82. Alternatively the tail wheel may be omitted and a bracket (not shown) may be fitted in the rear of the tractor, the bracket having rearwardly extending arms adjustably fitted with chains attached to the lower lifting links 12 to limit downward movement thereof. Specifications 470,069 and 470,087 are referred to.
Patent GB-443045-A (GB)
Title: Improvements relating to locking nuts particularly for fish-plate bolts
IPC: F16B39/286
Filed: 1934-10-16
Abstract: 443,045. Locking nuts. TIMM, J., 1, Munchenerstrasse, Berlin. Oct. 16, 1934, Nos. 29527 and 29528. Convention dates, Oct. 17, 1933 and Jan. 24, 1934. [Class 89 (i)] The upper end of a nut is formed with slots 4 which extend at least one third around the circumference and are inclined in the opposite direction to the bolt threads. The slots also incline inwardly in a radial direction. The ends of the tongues are pressed inwardly before the nut is applied to the bolt. The inner end of the slot 4 is rounded.
Patent GB-334409-A (GB)
Title: Improvements in or relating to photo-sensitive cells
IPC: H01G9/20
Filed: 1929-09-30
Abstract: 334,409. Arcturus Radio Tube Co., (Assignees of Ruben, S.). March 16, 1929, [Convention date]. Light-sensitive cells.-A light-sensitive cell has an electrode of cuprous oxide 3<a> in contact with an electrolyte 2 capable of releasing nascent oxygen independently of electrolysis, such as hydrogen peroxide. A co-operating electrode 4<c> is made of electropositive material, such. as magnesium, zinc, cadmium, or aluminium, or of electronegative material, such as selenium, or carbon. As shown, a copper electrode, 3, coated with the cuprous oxide, is in the form of a truncated cone containing the electrolyte, and the co-operating electrode extends axially in the cone. One end of the cone rests on an insulating base 8 and the open end is closed by a translucent glass seal 6. Specification 341,527, [Group XL], is referred to.
Patent GB-1079730-A (GB)
Title: Method of producing smeiconductor contacts
IPC: H01L21/00
Filed: 1966-07-01
Abstract: <PICT:1079730/C6-C7/1> Ohmic alloyed contacts to two different conductivity type regions of a semi-conductor body are made by a process in which appropriate metals are deposited from the vapour phase on to the heated semi-conductor.  The semi-conductor body is first masked by a surface oxide layer which leaves one or more regions of one conductivity type exposed.  An alloy suitable to form an ohmic contact to such regions is then evaporated on to the body with the latter at the alloy-semi-conductor eutectic temperature. Subsequently an isolating metal layer is evaporated on to the alloy layer at a lower temperature such that this metal does not alloy with the layer already present.  An aperture is then etched through this double metal layer and through the oxide to expose a region of opposite conductivity type.  A second metal alloy is then deposited at a temperature such that it will alloy with the semi-conductor but not with the isolating layer.  The first conductivity type region now has an alloyed contact surmounted by two non-alloyed layers and the second conductivity type region has a simple alloy contact, though both contacts are interconnected. A further metal layer may be applied before a final etching treatment to separate the electrodes. The process is particularly described in relation to a gallium arsenide NPN planar transistor, though its possible application to integrated switching circuits is also mentioned.  The masking oxide layer is of silicon dioxide on which a thin (200<\>rA) chromium layer may be formed.  This chromium is partly etched away to leave chromium areas of a required electrode shape which, being adherent both to the oxide and the contact material, ensure that in the completed device the contacts extend over the oxide as strips of the required shape. The P-type base region is then exposed by further etching before the first alloy, 2% Mg 98% Ag, is deposited with the wafer at 620 DEG C. The isolating, non-alloyed layer is of silver deposited at 450 DEG C. and the second alloy, for contacting the N-type emitter and collector regions, is 2% Te 98%Au also deposited at 450 DEG  and the final layer is Au deposited at 300 DEG C.  Thus in Fig.5-which shows part of the resulting structure after the final etching to separate the contacts-the emitter contact 14 of Te-Au contacts the semi-conductor through layers 11, 9, 6, 5 of Ag, Mg-Ag, Cr and SiO2 respectively and is surmounted by Au 15, whereas the base contact 10 is of Mg-Ag extending through Cr and SiO2 layers 7, 5 and surmounted by Ag, Pe-Au and Au layers 11, 13, 15 respectively. The purpose of the silver layer 11 is to prevent the Te in layer 13 from contaminating the base contact 10.