baber/WOPTO huggingface dataset:
Patent GB-1011507-A (GB)
Abstract: 1,011,507. Chemical analysis by electrolytic means. ESSO STANDARD S. A. FRANCAISE. Nov.28, 1963 [Dec. 20, 1962], No. 47125/63, Heading G1N. Relates to an apparatus and process for chemical analysis by anodic voltametry (i.e. wherein the voltage-current curve at the terminals of an electrolysis cell is recorded in a given period of time the voltage being a linear function of time). In operation a push button switch 6 is closed to energize a relay 3 and close contacts 31, 33, and reversing switch 32 in the right hand position so that a time switch motor 4 starts, switch 41 being closed, and a constant voltage E (100-500 Volts) is applied through a resistor R9 and switch 32 to charge up a capacitor 10 thus producing a linearly increasing voltage which is applied across an electrolysis cell 12 for a predetermined time (5-120 seconds) as set by the time switch. The current passing through the cell is measured on a microammeter 11 as a function of the voltage and the maximum deflection thereof is noted. After the preset time the time switch contacts 41 open and the relay operated reversing switch 32 is changed over so that capacitor 10 is short circuited. A mathematical explanation of the linear increase in voltage to the cell is given. Examples of the determination of several materials in liquid media using the apparatus of the invention are given. The cell may have platinum micro-electrodes.
Patent GB-1052567-A (GB)
IPC: C07D251/44
Abstract: Compounds of the formula <FORM:1052567/C1/1> where R1 is -N = C = NH or -NH-C­N, and R2 and R3 are each halogen or -NH2, are prepared by reacting a tetrameric cyanogen halide (preferably chloride) with an aq. NH3 solution (pH 7 to 13) at - 10 DEG  to 90 DEG  C.  The compounds of the formula <FORM:1052567/C1/2> wherein R2 = Cl or NH2, are claimed per se. The carbodiimino compound is obtained when conditions are such that neither or only one of the nuclear halogens is replaced by an amino group, namely a stoichiometric amount of NH3 solution at a temperature of 0 DEG  to 60 DEG  C., or an excess of NH3 at - 10 DEG  to ambient temperature. The carbamonitrilo compound is obtained when both nuclear halogens are replaced by the NH2 group, i.e. when an excess of NH3 solution is used at 30 DEG  to 90 DEG  C. If an amount of NH3 equivalent to two side chain halogens and only one nuclear halogen is used at above 60 DEG  C. the second nuclear halogen may be substituted by a hydroxy group.ALSO:Compounds of the formula <FORM:1052567/C1/1> where R1 is -N = C = NH or -NH-C­N, and R2 and R3 are each halogen or -NH2, are prepared by reacting a tetrameric cyanogen halide (preferably chloride) with an aq. NH3 solution (pH 7 to 13) at - 10 DEG  to 90 DEG  C.  The compounds of the formula <FORM:1052567/C1/2> wherein R2 = Cl or NH2, are claimed per se. The carbodiimino compound is obtained when conditions are such that neither or only one of the nuclear halogens is replaced by an amino group, namely a stoichiometric amount of NH3 solution at a temperature of 0 DEG  to 60 DEG  C., or an excess of NH3 at - 10 DEG to ambient temperature. The carbamonitrilo compound is obtained when both nuclear halogens are replaced by the NH2 group, i.e. when an excess of NH3 solution is used at 30 DEG  to 90 DEG  C.  If an amount of NH3 equivalent to two side chain halogens and only one nuclear halogen is used at above 60 DEG  C. the second nuclear halogen may be substituted by a hydroxy group.
Patent GB-1053294-A (GB)
IPC: D06F43/02
Abstract: 1,053,294. Dry cleaning apparatus. NEIL & SPENCER Ltd. Aug. 8, 1963 [Aug. 16, 1962], No. 31508/62. Heading D1A. A dry cleaning plant comprises a cleaning drum 2, a solvent supply tank 16, an ejector 28 and a chamber 32. During cleaning the solvent is circulated through drum 2 from tank 16 via pipe 22 and pump 18 and returns via pipe 25. After cleaning most of the solvent is removed by draining and centrifuging and the rest is removed by means of the ejector 28 which produces a partial vacuum in the drum 2 which is heated so that the solvent of a low boiling point (e.g. trichlorotrifluoroethane) evaporates and is drawn off through pipe 24 into the chamber 32. Chamber 32 is cooled by coil 40 and so the solvent condenses together with any water which has been removed from the clothes. The levels of the solvent and the water layer above it are kept constant by overflow pipe 44 to tank 16 and overflow pipe 48 to drain. The ejector 28 is operated by water fed to it from the chamber 32 by a pump 38. Air is permitted to escape through a vent pipe 50 and a further cooling coil 52 may be provided to condence any solvent vapour from this air.
Patent GB-1053320-A (GB)
IPC: A61D9/00
Abstract: 1,053,320. Dog collars. W. A. H. FORBES. Nov. 25, 1965 [Dec. 9, 1964], No. 50058/64. Heading A1M. [Also in Division A5] A leather dog collar 1 or horse pastern strap has a gapped copper ring 6 threaded through it so that a major length of the ring lies on the inside of the collar or strap.
Patent GB-1084318-A (GB)
IPC: F27B9/22
Abstract: 1,084,318. Continuous heat treatment furnace. UNITED GAS INDUSTRIES Ltd. Dec. 21, 1964 [Sept. 24, 1963], No. 37514/63. Heading F4B. A gas-heated billet furnace comprises a furnace chamber through which an inclined metal hearth (8) of angular or concave cross-section longitudinally extends, and means to positively move brass billets along the hearth from the feed end 2 to the discharge end 3 into a discharge shoot 22. The furnace is formed of a cylindrical metal casing 1 closed by end plates 2, 3 all supported on a frame (7) the chamber being lined with interlocking refractory bricks. An electromagnetic vibrator 25 or jigging mechanism is clamped to the discharge end of the hearth. Billets are fed by a pneumatically operated lifting and tilting bucket 19 to a vibratory feed bowl and thence down an inclined supply shoot 16, whose width is adjustable, into the path of a pusher 10 reciprocating in an elongated bearing 15 to be fed longitudinally on to the hearth (8). The pusher 10, driven by electric motor 12 through reduction gearing 11, crank disc 13 and connecting rod 14 is mounted on a platform 9 attached to the frame. A metal sheet may be interposed between the platform 9 and the furnace casing 1 to protect the former from the furnace heat. The action of the pusher 10, and the billet supply down the shoot 16 are synchronized by the opening of a gate, either electrically or mechanically at the bottom of the supply shoot, under the influence of the pusher. The shoot 16 has a wall 17 adjusted by screws 18, to vary the width of the shoot to the length of the billets being charged, the stroke of the pusher being correspondingly varied by use of a connecting rod of adjustable length or by varying the radius of the crank-pin on the crank disc 13. The billets pass along the vibrating hearth (8) which may be solid, perforate or formed of spaced bars to the discharge shoot 22 which may be in line with or lateral to the hearth, communicating with it from inside or outside of the casing 1 through a discharge trough 23. The furnace is heated, under automatic control to maintain the billet discharge temperature correct, by two staggered spaced rows (21) of " air blast " gas burners set in refractory block 20 in the furnace roof. Alternatively high capacity jet burners firing longitudinally from the feed end 2 may be used, which burners may be annularly disposed in the case of a perforate hearth, to provide firing from both above and below. Radiants of refractory material may be associated with the burners. Two identical hearths may be constructed in a single furnace chamber.
Patent GB-1226531-A (GB)
IPC: D07B7/02
Filed: 1965-07-09
Abstract: 1,226,531. Stranding cables. ELECTROFIL. 9 July, 1965 [16 July, 1964], No. 29322/65. Heading D1T. [Also in Divisions F3, F4 and H1] An electric cable for connecting a flying missile to a control post and comprising electric conductors surrounded by a sheathing of threads is manufactured such that the tensions in the individual threads are equalized. Similarly, the tensions in the individual conductors are equalized at a tension slightly less than that in the threads. As shown in Fig. 2 ten threads a .. j from cups 10 pass through a comb 12 and then over three grooved rollers 2, 1, 3, the tensions being equalized by mounting the roller 1 on the end of a lever 6 pivoted at 7 and biassed by a spring fixed to a rigid arm 9, the thread tension being adjustable by connecting the spring to selected holes in the lever and arm. Two electric conductors I, II pass over a further set of tension equalizing grooved rollers 2a, la, 3a, to a cable covering machine 17, the threads a .. j also entering the machine after passing over further grooved rollers 4, 5. An arrangement of beads 14 and tubes 15 for receiving- the individual threads and conductors causes the threads to surround the conductors, the cable thus formed comprising parallel electric conductors I, II surrounded by parallel threads a .. j. In the machine 17 the cable is spirally bound with a binding thread (Fig. 4, not shown). A modified cable described with reference to Figs. 5 and 6 (not shown) is manufactured with the addition of a twisting process in which the electric conductors are twisted and the threads are twisted about the conductors.
Patent GB-1227702-A (GB)
IPC: C11D7/54
Filed: 1969-03-06
Abstract: 1,227,702. Powdered bleach composition. DOW CHEMICAL CO. 6 March, 1969 [12 March, 1968], No. 11971/69. Heading D1P. A solid, dry, stable, non-hygroscopic bleaching and oxidising composition comprises a mixture of an organic acid anhydride absorbed on to an inert absorbent material which is substantially free of uncombined water and an inorganic peroxygen compound. The composition may be granular and both constituent granules may range in size from minus 5 to plus 100 mesh US Standard Sieve Sizes (4.0 to 0.149 mm). The solid organic anhydride may be a carboxylic acid anhydride, in particular benzoic anhydride. The non hygroscopic inert absorbent material may be diatomaceous earth, synthetic silica-alumina compounds, an inert metal salt, an inert clay or expanded perlite or mixtures thereof. The ratio of inert absorbent to anhydride absorbed thereon may range from 65:35 to 30:70 by weight. The inorganic peroxygen compound which is preferably present in about an equimoles proportion to the anhydride may be chosen from inorganic perborates, peroxides, percarbonates and perphosphates and urea peroxide, and is in particular sodium, ammonium or potassium perborate or mixtures thereof. The anhydride may be absorbed on to the inert absorbent by mixing the anhydride melt and absorbent, by spraying the molten anhydride on to the absorbent or by slurrying the inert absorbent with a solution of the anhydride in an inert solvent such as methylene chloride and evaporating the solvent. Addition of ammonium cations can enhance the bleaching and oxidising properties of the solutions. The pH of solutions of the composition may be adjusted by adding sodium carbonate or tetra sodium pyrophosphate. Other materials such as soaps, perfumes may be added provided they are not detrimental to the bleaching and oxidising properties. The constituents in addition to being granular may be in the form of tablets, rolls or balls which may or may not have the peroxygen compound and absorbed anhydride uniformly distributed.
Patent GB-1229772-A (GB)
IPC: F16D55/224
Filed: 1969-07-28
Abstract: 1,229,772. Disc brakes. KELSEY-HAYES CO. 28 July, 1969 [12 Aug., 1968], No. 37753/69. Heading F2E. A disc brake caliper unit comprises a generally U-shaped resilient member 22 mounted by means of a releasable pin 26 in a frame 10, a pair of brake pads 18, 20 being mounted facing each other on opposed limbs of the member 22 and being biased apart by the resilient member 22, and a cam 30 and cam followers 32 mounted on the frame 10 being operable to move one of the pads 18 towards the other pad 20 against the bias of the resilient member 22. As shown, the cam 30 is retained on a threaded pivot pin 16 on a guide block 14 by a castellated nut 40 which is operable to adjust the spacing of the cam 30 and the followers 32 and thereby adjust the spacing of pads 18, 20, whereafter a cotter pin 42 is passed through the nut 40 to lock it in place. The cam 30 is rotatable about the pin 16 by an operating cable 48 attached to an arm 28 rigid with the cam 30. The disc, as shown, comprises one half 34 of a V-belt sheave 36 and the frame 10 is pivotally connected by a pin 38 to a stationary structure associated with the V-belt sheave 36 to allow the frame 10 to float relative to the sheave 36 to equalize pad pressure.
Patent GB-1229949-A (GB)
IPC: E21D23/00
Filed: 1968-11-26
Abstract: 1,229,949. Advancing mine roof supports. GULLICK DOBSON Ltd. 7 Oct., 1969 [26 Nov., 1968], No. 55943/68. Heading E1P. In an arrangement of side-by-side advancing mine roof supports, a conveyor C serving as an anchorage for the advancing hydraulic rams, is provided with a guide rail 14 which receives clevises 13 attached to the advancing rams, parts 17 of the clevises which project into the rail being connected together by a chain 19. A ram may be connected to the chain for sliding the clevises along the rail in an uphill direction, hydraulic rams being provided between adjacent supports for correct positioning normal to the face. To vary the position of the advancing rams, as a whole, relative to the conveyor, the end of each ram remote from the conveyor is connected to holed angle members (23, Fig. 5) mounted internally and on opposite sides of the base structure of each support.
Patent GB-1238173-A (GB)
IPC: B25C1/14
Filed: 1968-07-10
Abstract: 1,238,173. Fastener driving tools. ETEM ETABLISSEMENT DE TECHNIQUES MODERNES. 10 July, 1968 [14 July, 1967], No. 32857/68. Heading B4C. [Also in Division E2] An explosively actuated fastener driving tool comprises a guide piece 10 having a barrel 11 for receiving a fastener, the guide piece being adapted to be removably received by extension arms 2a, 2b of a bearing part 1 with respect to which a fastener driving piston (not shown) is reciprocable. The arms have longitudinal recesses 3 which terminate in shoulders 4, and transverse recesses 6. The guide piece is initially positioned as shown relative to the arms and the guide piece is moved until the portions 15 of the guide piece overlie the recesses 6, whereupon the guide piece is moved downwardly relative to the arms. The guide piece is then moved towards the free ends of the arms, and is rotated until the guide piece and bearing part are coaxial.
Patent GB-1251722-A (GB)
IPC: H02H7/08
Filed: 1969-02-28
Abstract: 1,251,722. Control of D.C. motors; protective arrangements. LANSING BAGNALL Ltd. 12 Feb., 1970 [28 Feb., 1969], No. 10857/69. Headings H2J and H2K. A control circuit for a D.C. shunt motor of the type wherein a controllable rectifier between the field winding of the motor and a D.C. source is made intermittently conductive to supply pulses of current, is provided with a safety circuit to de-energize the field winding should the rectifier conduct for longer than a predetermined time. In the described embodiment the shunt field winding 17 of a D.C. motor 13 is controlled by a thyristor 18 which is made intermittently conductive by a conventional pulse supply circuit 24 and commutating circuit 19 ... 22. Winding 17 is supplied from a D.C. source 10 through a contactor 16 whose control coil 16a is energized through a circuit comprising normally-closed switches 26, 27 and a transistor 39 whose conductive state is determined by the voltage at a point 33, which voltage is dependent on the relative on/off periods of the thyristor 18. Normally, these periods cause charge and discharge of a capacitor 32 to provide a voltage at point 33 sufficient to break down a Zener diode 34 and so cause transistors 36, 39 to conduct and maintain the contactor 16 closed. If the period of conduction of the thyristor 18 is prolonged, the voltage at point 33 falls below the Zener breakdown voltage to cut off transistors 36, 39, de-energize the coil 16a and open contactor 16. The safety circuit may be overridden by the circuit 41, 42, closure of whose switch 41 maintains the capacitor 32 charged and so maintains the voltage at point 33 above the Zener breakdown voltage. The armature control circuit 14 may comprise starting resistors and switches or may comprise a controlled rectifier and safety arrangement generally similar to that provided for the field winding. Switch 27 is operated by the hand or foot brake of a vehicle driven by the motor.
Patent GB-1259650-A (GB)
IPC: H04Q1/38
Filed: 1969-03-12
Abstract: 1,259,650. Automatic exchange systems; correcting inductive disturbances. STANDARD TELEPHONES & CABLES Ltd. 12 March, 1969, No. 13025/69. Addition to 1,200,909. Headings H4K and H4R. In an exchange system having two-wire subscriber lines that are subject to earth current (longitudinal current) disturbances, each leg of a line includes a resistor R1, R2, one of which is coupled by an inverting amplifier VT1 to a voltage threshold detector VT2 and the other of which is coupled by a resistor R3 to the detector. The latter is biased by battery V B  so as to respond only if the cumulative voltages V 1  and V 2  across R 1  and R 2  reach a level indicative of current flowing in a series loop. V B  is preferably derived from the exchange battery so that the threshold level is automatically adjusted in the face of voltage fluctuations of the battery.
Patent GB-1264196-A (GB)
IPC: B65D65/40
Filed: 1969-07-10
Abstract: 1,264,196. Coated products. E. I. DU PONT DE NEMOURS & CO. 10 July, 1969 [10 July, 1968], No. 34850/69. Heading B2E. [Also in Division B5] A laminate used for packaging comprises an inner layer of an elastomeric polymer and two outer layers of polymeric resin each having an extensibility of at least 50% of that of the inner layer, at least one of the outer layers having a coefficient of friction to metal of less than 0.50. The latter requirement may be inherent in the resin or may be provided by means of additives, such as dioctyladipamide, calcium stearate, glycerol mono- or distearate, erucamide, oleamide, N-oleyl palmitamide or silica. The inner layer may be of styrene-butadiene, ethylene-propylene copolymers and terpolymers, polyurethane, chlorinated, reclaimed or cyclised rubber, rubber hydrochloride, polyisobutylene, isobutyleneisoprene copolymers, polyisoprene, polychloroprene, polybutadiene, copolymers of butadiene or isoprene with styrene or acrylonitrile and copolymers of propylene or ethylene with hexene or hexadiene. The outer layers may be of ethylene and propylene copolymers, ethylene-vinyl acetate copolymers or copolymers of ethylene with C 1 -C 5 -alkyl acrylic esters (e.g. methyl, ethyl and butyl acrylates, butyl methacrylate). One of the outer layers may be preformed and the remaining layers may be applied by extrusion or melt coating.
Patent GB-1264691-A (GB)
IPC: F16D43/25
Filed: 1969-02-27
Abstract: 1,264,691. Friction clutches. FICHTEL & SACHS A.G. 27 Feb., 1969 [1 March, 1968], No. 10612/69. Heading F2C. [Also in Division F1] A temperature-controlled clutch between a driving pulley 113 and an engine cooling fan 151 comprises a torque-responsive coupling 112 which rapidly engages a secondary clutch 111 after initial engagement has been produced by a temperature-sensitive element 119 and a main band clutch which is engaged by rotation of the secondary clutch. A wax-filled temperaturesensitive element 119 acts through a plunger 121 to move right, against the bias of return springs 126, 127, an element 125 of the torque-responsive coupling 112. The element 125 has cam projections 129 which co-operate with cam surfaces 133 on the driving element 131 of the secondary clutch 111. At a predetermined temperature initial engagement between the clutch element 131 and a friction surface 152 on a driven element 142 of the secondary clutch causes a drag on the clutch element 131 whereupon interaction between the cam surfaces 129, 133 produces a torque-responsive axial force which rapidly engages the secondary clutch 111. Thereafter rotation of the driven clutch element 142 acts through a spring 145 to contract a metal clutch band 147 on to a lining 139 of a driving clutch drum 137. When the temperature falls the element 125 moves left until the cam projections 129 pass over the cam surfaces 131 to relieve the torque-responsive force whereupon the clutch disengages rapidly.
Patent GB-1266118-A (GB)
IPC: E01D19/06
Filed: 1970-12-29
Abstract: 1,266,118. Expansion joints. FRIEDRICH MAURER SOHNE. 29 Dec., 1970 [3 Feb., 1970; 20 March, 1970], No. 61663/70. Heading E1B. A sealing device for an expansion gap between bridge and roadway members 3 comprises a plurality of plates 4 parallel to the edges of the members suported by transverse carriers 1 passing through openings in the plates and supported on resilient bearing members 2 in grooves in the edges of the members 3. The transverse members 1 have a track 1a in opposed surfaces in which sliding pads 10 move the pads 10 supporting compressively pre-loaded resilient members 6 which are attached at 4a to the plates 4. The plates are held in parallel spaced relationship by resilient bodies 5 and springs 11. The plates are in the form of castellated I-beams. One of the webs of the beam may be detachable. In an alternative embodiment the plates are fixedly connected to the transverse carriers.
Patent GB-1266434-A (GB)
IPC: B05D3/06
Filed: 1969-08-05
Abstract: 1,266,434. Coating wood with polyester resins. FARBENFABRIKEN BAYER A.G. 5 Aug., 1969 [5 Aug., 1968], No. 39161/69. Heading B2E. [Also in Division C3] Hardened coatings on a surface are produced by applying to the surface to be coated first a photosensitizer and subsequently a coating mixture comprising an unsaturated polyester and a copolymerisable monomeric compound and then irradiating the coating with ultra-violet light. In the Examples benzoin ethyl ether, acryl chloride, benzoin methyl ether and benzoin isopropyl ether are dissolved in a mixture of nitrocellulose, ethyl acetate and butyl acetate, a mixture of a polyester prepared from maleic anhydride, pathalic anhydride and propane diol-1,2, hydroquinone and butyl acetate or a mixture of a polyester prepared from maleic anhydride, butyl glycol, and propanediol-1,2, butyl acetate, ethyl acetate and methyl glycol acetate are applied to porous MacorÚ wood, dried, a coating lacquer containing a polyester prepared from maleic anhydride, phthalic anhydride and propane diol-1,2, hydroquinone, styrene and paraffin is applied and irradiated with a fluorescent tube and a high pressure mercury radiator.
Patent GB-1266899-A (GB)
IPC: B32B27/00
Filed: 1969-04-21
Abstract: 1,266,899. Laminates. STOREY BROS. & CO. Ltd. 20 June, 1969 [21 April, 1969], No. 20309/69. Heading B5N. A laminate is made by bonding a knitted fabric to the surface of a sheet of flexible plastics material bearing a printed pattern, the knitted fabric having a sufficiently open structure for the printed pattern to show through and be visible when viewed from the fabric side of the laminate. The plastics sheet may be of plasticized P.V.C., polyethylene, polyurethane, ethylene/vinyl acetate copolymer or regenerated cellulose and is transparent, translucent or, preferably, opaque. The fabric may be a warp knitted loop raised nylon fabric and is normally of a colour contrasting with that of the printing. Bonding may be effected by means of an adhesive such as a P.V.C. paste applied by gravure roller and assisted by heat and pressure. The laminate may be embossed by means of a roller during or after the laminating step.