baber/WOPTO huggingface dataset:
Patent GB-1064061-A (GB)
Title: Baling press
Inventor: SCHAIK JOHAN VAN
IPC: B30B9/30
Filed: 1962-12-19
Abstract: 1,064,061. Baling presses. FLETCHER & STEWART Ltd. Dec. 17, 1963 [Dec. 19, 1962], No. 48026/62. Heading B5F. In a baling press comprising an outer shell 1, pivoted at its rear end and supported at its front end by a load cell, the material to be baled is compressed against a door at the front of the shell by a plunger 9, the door subsequently being hydraulically raised and the plunger further forwarded to eject the bale. The plunger is actuated by a cylinder 50 slidable over a central hydraulic piston 59 which piston is carried by a crosshead 57 attached to the rear end of two cylinders 56 themselves slidable over outer pistons 51 secured to the rear of the shell. The plunger is initially forwarded by one piston and cylinder mechanism and then further forwarded by the other. The plunger comprises four separate outer sections which are spring biased outwardly to be a tight fit against the shell 1, a sealing additionally being provided. The opening to the filling chamber (13) is covered during the forward stroke by a member carried to the rear of the plunger. The plunger moreover carries a blade which co-operates with a fixed blade mounted at the front edge of said opening so that the material to be baled is sheered from the rest, a safety device being provided to stop the plunger, in the event of any excessive obstruction to the blade.
Patent GB-1203578-A (GB)
Title: Poly(episulphide) compositions
Inventor: WRAGG REGINALD TREVOR
IPC: C08G75/06
Filed: 1966-10-27
Abstract: 1,203,578. Polyepisulphide compositions. DUNLOP CO. Ltd. 24 Oct., 1967 [27 Oct., 1966], No. 48160/66. Heading C3R. A composition suitable for use as a sealant comprises polyepisulphide and a metal peroxide, the polysulphide having at least three reactive groups per molecule at least one of which is a thiol group and the others being thiol or amino. Mixtures of polyepisulphides may be used in which case the average number of reactive groups must be greater than two per molecule. Suitable peroxides are those of Group IV metals, e.g. lead peroxide (preferred), as well as zinc, barium and calcium peroxides. The amount of peroxide is usually 0.25 to 2.5 gm. moles per gm. equivalent of total thiol functionality. The compositions also preferably include an adhesion-promoting resin, e.g. phenol-, cresol- or resorcinol-formaldehyde resin, polyester or ketone-aldehyde resin, in amounts up to 20% by weight of the polysulphide. Fillers and pigments may be present, e.g. CaCO 3 , silica, carbon black and TiO 2 , as well as accelerators and retarders, the latter being exemplified by stearic acid. The compositions may also include plasticizers, e.g. polyesters, chlorinated diphenyl derivatives and p-toluene sulphonamides. In making up the composition, the peroxide, and retarder, if used, may be made into a paste with part of the plasticizer and added to the other ingredients just before use. The functional polyepisulphides are based preferably on polymers of propylene or butylene sulphide or copolymers of ethylene, propylene and butylene sulphides, and are flowable materials with molecular weights of up to 10000. They may be prepared by (1) use of a Group IIB metal compound together with a cocatalyst which may be ammonia, ammonium compound, amine, hydrazine or derivative, dithiol, trithiol or dithiolamine; (2) polymerizing in the presence of an amino-thiol adduct and a base as described in Specification 1,203,577; (3) reacting a difunctional polyepisulphide with a polyfunctional compound, e.g. a polymer having one amino and one thiol group may be reacted with cyanuric chloride to provide three terminal thiol groups. Reference has been directed by the Comptroller to Specification 1,084,893.
Patent GB-1234828-A (GB)
Title: Solar cell arrays
Inventor: DOLLERY ALAN ALBERT
IPC: B64G1/44
Filed: 1968-10-14
Abstract: 1,234,828. Gas cylinder discharge device. MINISTER OF AVIATION SUPPLY. 8 Oct., 1969 [14 Oct., 1968], No. 48483/68. Heading F4P. [Also in Division H1] A satellite carries a solar cell array which is stored folded and is extended to a fully deployed position by erection of a framework consisting of honeycomb aluminium cross-bars 15b-15e (Fig. 4) attached to telescoped aluminium alloy tubes. After assembly the innermost of the telescoped tubes 14 is filled with compressed gas via valve 21. On a ground command signal or automatically when the spin rate falls to a certain level explosive charges are detonated electrically to move ring 23, thereby releasing pivoted spring-loaded claws 25 from detents 24 in the shaft extension of member 27. The outermost tube then moves right thereby causing sealing ring 32 to be dislodged and allowing controlled escape of the gas via vent 33 to extend the assembly. Mating keys and keyways on the tubes prevent relative reaction. Mating conical stops on the tubes and crossmembers determine the extension, whereupon loaded pawls engage recesses in the keys to positively lock the tubes.
Patent GB-1484164-A (GB)
Title: Production of silicon carbide
IPC: C01B31/36
Filed: 1974-11-08
Abstract: 1484164 Silicon carbide E I DU PONT DE NEMOURS & CO 8 Nov 1974 [8 Nov 1973] 48564/74 Heading C1A Silicon carbide is produced by heating a mixture of carbon and silica, both in particular form, in a mole ratio of carbon to silica of from 2 : 1 to 6 : 1 at a temperature of from 1350‹ to 1750‹ C. in the presence of particulate elemental silicon in an amount of from 3À5 to 22% by weight based on the weight of carbon, silica and silicon used. The preferred temperature range is from 1400‹ to 1600‹ C. If necessary the product is subsequently heated in air at at least 400‹ C. to oxidize any residual carbon; excess silicon, if any is removed by an acid leaching step using a mixture of hydrofluoric and nitric acids and residual acid together with any carbon liberated by the leaching step are removed by a further heating step at a temperature of at least 400‹ C.
Patent GB-1102541-A (GB)
Title: Copper salt solution
Inventor: DEANS ASHWYNN ARCHIBALD
IPC: B01D53/14
Filed: 1963-12-10
Abstract: An aqueous dispersion of an amine complex of a cuprous or cupric salt (e.g. of an organic acid) or both with a siloxane antifoaming agent is claimed per se.  It may be used to absorb carbon monoxide and/or carbon dioxide from gases, particularly ammonia synthesis gas.  The concentration of the siloxane polymer may be 1-100 preferably 5-20 p.p.m. by weight of the solution.ALSO:An amine complex of a cuprous or cupric salt (e.g. of an organic acid) or both with an anti-foaming agent (e.g. a siloxane polymer) and water is claimed per se.  It may be used to absorb carbon monoxide and/or dioxide from gases, particularly ammonia synthesis gas.  The concentration of the siloxane polymer may be in the range 1-100, preferably 5-20 p.p.m. by wt. of the solution.  The absorption may be carried out by contacting the gas and solution in an absorption tower, at a pressure which may be 50-500 atmospheres, especially 100-350 atm.
Patent GB-1313920-A (GB)
Title: System responsive to the sudden deviation of the current relative to the voltage in a load circuit
IPC: B23H3/02
Filed: 1970-10-14
Abstract: 1313920 Protective arrangements UDYLITE CORP 14 Oct 1970 [28 Nov 1969] 48856/70 Heading H2K A protective arrangement, e.g. for electrochemical machining or painting apparatus, comprises means providing signals at 12, 44 dependent on the magnitudes of the load current and load voltage, a multiplier circuit 20 with an automatic gain feed-back circuit 50 for varying the current signal so as to produce a multiplied current signal normally equal to the voltage signal, and a subtractor circuit 40 for producing an output signal when the signals cease to be equal due to a sudden change in the load current. In the arrangement shown, the current signal is amplified at 14 and applied to the multiplier 20 at a terminal X for multiplication by a signal applied at a terminal Y. The output from the multiplier 20 after amplification at 30 is applied together with the voltage signal (from 44) to the subtractor 40 which provides an output, when its input signals are not equal, through an amplifier 92 and rectifier 96 to a trip circuit 94 effective to provide a firing signal to a "crow-bar" silicon controlled rectifier and a signal to turn off the main supply rectifier for the protected apparatus. In the feed back circuit 50 a signal from the amplifier 30 is applied to a rectifier 60 and the voltage signal is applied to a rectifier 56 and inverter 74, the resulting rectified signals being in opposition so to provide a zero signal at a point 66 when they are equal. The signal at 66 is amplified at 78 to provide the signal at terminal Y of the multiplier, which maintains the signals at the subtractor 40 equal for normal load variations. In the event of a fault, e.g. incipient arcing in the protected apparatus, causing a rapid rise in the current and a drop in voltage the arrangement is unable to function sufficiently quickly to prevent the response of the subtractor 40 and the consequent tripping action. Since the output from the amplifier 78 is a function of the resistance of the load circuit it may be used to control the load current to maintain a linearly increasing resistance at the load. The arrangement is described in some detail with reference to circuit diagrams, Figs. 2 to 4 (not shown).
Patent GB-1260048-A (GB)
Title: Improvements in or relating to coin slide assemblies
Inventor: GREENWALD HARRY
IPC: G07F5/02
Filed: 1969-10-06
Abstract: 1,260,048. Coin slide. GREENWALD INDUSTRIES Inc. 6 Oct., 1969, No. 48940/69. Heading G4V. A coin slide 14 movable within a guide housing 12 is prevented from reaching an operative position in the absence of a coin by a lever 40 mounted on the housing 12 and biased to engage a shoulder 38 on the slide; the lever 40 can be pivoted by a coin 16 to free the slide for movement to the operative position, and on return movement of the slide can be urged to re-engage the shoulder 38 by means 56 carried by the slide 14. On slide movement towards an operative position, a coin 16 carried by the slide 14 cams against a pin 50 to pivot the spring-biased lever 40. A pawl-and-ratchet 28 prevent reversal of the slide 14 after a certain length of movement, and a device 26 (not further disclosed) mounted on the housing 12 forces the coin out of the slide into a locked coin drawer. The slide end actuates further mechanism, and slide movement is limited by a stop 60 on the dog 56, co-operating with the housing 12. The slide is returned to an inoperative position by a spring 20, a dog 56 forcing the lever 40 to re-engage the slide 14 if the biasing spring 44 is inoperative. The dog 56 is constructed of cadmium plated, chromate treated steel. The coin slide assembly may be used in a washing machine, dryer or vending machine in conjunction with coin registering and slug- and washer-rejecting mechanism (not further disclosed).
Patent GB-1481038-A (GB)
Title: Process for preparing prills from a urea melt containing monoammonium phosphate
IPC: C07C239/00
Filed: 1974-11-13
Abstract: 1481038 Urea and ammonium phosphate prilled UNIE VAN KUNSTMESTFABRIEKEN BV 13 Nov 1974 [16 Nov 1973] 49170/74 Heading ClB Urea melt is mixed with solid mono ammonium phosphate and the mixture prilled within 10 seconds of the addition.
Patent GB-1242883-A (GB)
Title: Production of heat-resistant flexible light conductors
IPC: C03B37/14
Filed: 1968-10-17
Abstract: 1,242,883. Light-conductive yarns. CARLZEISS-STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN]. 17 Oct., 1968 [19 Oct., 1967], No. 49231/68. Headings D1F and D1W. A process for the production of a heatresistant flexible light-conductor is characterised in that optically insulated glass fibres or bunches thereof are tightly twisted into a collective bundle and the bundle is provided with a tightly fitting protective sheath of a flexible synthetic plastics material. In a preferred embodiment, glass fibres 3 are continuously drawn from spools 1 mounted on a common shaft 2a. The fibres 3 after being sprayed with water or other wetting agent at 6 are brought together at a hole in a disc 5. The spools 1 are mounted in a unit 2 which is rotated about an axis 2b so that the collected fibres are twisted at the disc 5. The twisted bundle is then passed through a heating tower 7 to be dried and thereafter through a bath of polyvinyl chloride to be provided with a sheath of the plastics material. Excess coating is wiped off at 9 and the coated bundle is passed through a second heating tower 10 to dry or cure the coating. If necessary the coating step may be repeated until the required thickness is obtained. In a further embodiment, the glass fibres are obtained by means of a rod-drawing process in which the ends of a plurality of glass rods are heated in a furnace and the fibres drawn directly from there. In a further embodiment, after drying the wetted bundle of fibres, the bundle is wrapped with polyethylene foil and then coated with the polyvinyl chloride.
Patent GB-1316347-A (GB)
Title: Overhead electric power transmission lines
IPC: H02G7/20
Filed: 1970-10-19
Abstract: 1316347 Overhead lines ENTE NAZIONALE PER L'ENERGIA ELETTRICA 19 Oct 1970 [18 Oct 1969] 49599/70 Heading H2C An overhead electric power transmission line has a group of phase conductors 2 suspended from support means 1 by a chain of insulators 4, and, at least in the region of the support means 1, the group of conductors are contained within an insulating tube 7. The insulating tube consists of a metal tube covered with insulation 7. Metal rings 8 are connected mechanically and electrically to the group of conductors outside the tube 6, and metal rods 9, arranged above the rings 8 on a guard wire 10, ensure there is no discharge between the conductors 2 and support 1, by providing a shorter discharge path to the guard wire 10. The rods 9 may alternatively be arranged on the central phase cable (not shown).
Patent GB-1058600-A (GB)
Title: Method and apparatus for making finned tubing
IPC: B23K9/032
Filed: 1963-12-17
Abstract: 1,058,600. Making finned tubes; welding by fusion; coiling. KENTUBE CO. Dec. 17. 1963 [Dec. 31, 1962], No. 49845/63. Headings B3A, B3E and B3R. Fin stock is gas-shielded arc-welded to a tube as the tube rotates and moves axially by an electrode located on the upwardly moving side of the tube within 30 degrees on either side of the horizontal transverse axis of the tube. The tube 10 (Figs. 1 and 2, not shown), is fed through a cleaning device 14, e.g. scraping, grinding or sand-blasting apparatus by skew rolls 12 or other mechanism which at the same time rotates the tube. A strip 16 coiled around the tube 10 by a roller 18 is welded by a consumable electrode 24, e.g. of copper coated carbon steel, shielded by gas, e.g. carbon dioxide, argon or helium from a nozzle 32. In a modification, the strip is L-seetioned. The tube may be of non-circular section, e.g. oval, square or rectangular, and a crimped or serrated fin may be used. The fin and tube may be of steel. The electrode is connected to the positive side of a D.C. supply.
Patent GB-1334076-A (GB)
Title: Process for manufacture of a foamed product from alkali metal silicates
IPC: C04B22/12
Filed: 1970-10-21
Abstract: 1334076 Foamed alkali metal silicates SOUTHWEST RESEARCH INSTITUTE 21 Oct 1970 [21 Oct 1969] 49893/70 Heading C1A [Also in Division B1] A process for making a foamed product comprises (a) mixing a surface tension depressant with an aqueous solution of sodium and/or potassium silicate, (b) frothing the mixture from (a) into a foam and (c) forming a silicon dioxide polymer in the foam by reacting the sodium and/or potassium silicate with a silicon dioxide polymer forming agent which is either included in the mixture before step (a) or is introduced into the foam formed by step (b) and is selected from sodium fluorosilicate, potassium fluorosilicate, potassium fluoroborate, polyvalent metal salts of weak acids (e.g. calcium fluorosilicate, fluoroborate or fluorotitanate or magnesium phosphate) inorganic double salts (e.g. sodium calcium borate or lithium calcium borate) or mixtures thereof in an amount sufficient to make the foam rigid and resistant to being dissolved by water. Fillers and an agent (e.g. triacetin) for causing the sodium or potassium silicate to gel may be included in the mixture. The process may be continuous and may be performed in a pressure vessel.
Patent GB-1461456-A (GB)
Title: 1-acetoxy-2-2-acetoxyethyl-cyclopent-1-ene
IPC: C07F7/18
Filed: 1974-04-10
Abstract: 1461456 Cyclopentanone derivatives SYNTEX (USA) Inc 10 April 1974 [16 April 1973] 50081/75 Divided out of 1461455 Heading C2C The invention comprises compound (4),where Ac is acetyl and its preparation by reacting 2 - (2 - hydroxyethyl) - 1 - oxocyclopentone (3) with acetic-anhydride in the presence of an acid catalyst. 2 - (2 - Hydroxyethyl) - 1 - oxocyclopentone (3) is made by alkylating a compound (I), where W is an alkali metal and Z is methyl or ethyl, with a 2-haloethyl acetate and dicarboxylating the 2 - (2 - acetoxyethyl) - 1 - oxocyclopentone- 2-carboxylate (2) with a concentrated acid.
Patent GB-506960-A (GB)
Abstract: 506,960. Time switches and valves. HORSTMANN, B. C., and HORSTMANN GEAR CO., Ltd. May 20, 1938, No. 15089. [Class 135] [Also in Group XXXVII] In a time-controlled mechanism applicable to devices such as electric switches and gas valves for cookers, a delay member driven by a timepiece is manually adjustable to pre-set a delay interval before the operation of the device for a period pre-set by a period member, by uncoupling the period member from the timepiece during the delay interval. A handle 1 on a spindle 2 driven by a synchronous motor 3 is permanently connected to a delay, dial 5 by a pin 6 and socket 8 connection, and to a period dial 4 by a dog-clutch consisting of studs 9 engaging in holes in the dial 4, the pin 6 passing through a slot in the dial 4. In setting, the handle 1 is rotated in a clockwise direction to its fullest extent when a pin 30 carried by the period dial 4 moves a loose ring 31 to press on a lever 24 pivoted at 25 and lock contacts 17 in the closed position, to.close the motor circuit. The handle is then brought back until the desired cooking period, e.g. 3 hours, is registered by an edge 22 on the dial 4. To set a delay period the handle 1 is pulled axially against a spring 10 to free it from the dial 4 and open contacts 18 in the heater-circuit 15, and is rotated until the desired delay period, e.g. 1 hour, is registered by an edge 23 with respect to the dial 5. The motor drives back the handle and delay dial while the dial 4 is held stationary by a friction ring 13 and at the end of the delay period the spring 10 causes the closing of the heater contacts 18 and the recoupling of the period dial 4 which is driven back until at the end of the cooking period a pin 33 moves the ring 31 to trip the switch 17 and open both motor and heater circuits. In one modification a single pin is used both to open and close the motor switch, while in another, Figs. 8 and 9 (not shown), the coupling consists of an engagement between the contacts in the heater circuit, which are cleaned by rubbing during engagement since the contact is mounted on a spindle caused to move axially by rotation upon a screw thread. In a further modification the period dial may operate a main gas valve, while an auxiliary valve is shut when the delay dial is set, and opened at the end of the delay period. The motor drive may be replaced by a spring- driven mechanism with automatic winding.
Patent GB-1123074-A (GB)
Title: Improvements in weight measuring and indicating apparatus
Inventor: INSHAW MICHAEL WILLIAM
IPC: G01G3/145
Filed: 1964-12-12
Abstract: 1,123,074. Measuring weight electrically. W. & T. AVERY Ltd. Dec. 13, 1965 [Dec. 12, 1964], No. 50697/64. Heading G1N. A weighing apparatus includes an amplifier 12 (Fig 1), which is coupled to receive an error signal produced by subtracting a reference voltage at a potentiometer 14 and an output voltage from strain gauge load cells 5 from one another, and the coupling incorporates a frequency responsive network (23) Fig. 2 (not shown) which passes preferentially voltage at the frequency of a source 6 which supplies the load cells and potentiometer. Noise passed on to the amplifier e. g. from the cells, is thereby eliminated, which is of importance when the error signal is reduced in amplitude to a level comparable with background noise. The amplifier output is applied to a servomotor 19 to adjust the potentiometer wiper and hence the reference voltage until the error voltage is reduced to zero. An extension of the wiper acts as a pointer which co-operates with a scale to indicate the weight of the load. The network 23 is also designed to compensate for any phase shift between the signal and power inputs to the amplifier.
Patent GB-1119728-A (GB)
Title: Process for the manufacture of unsaturated nitriles
Inventor: LIU ANDREW TZE-CHIU
Filed: 1965-11-30
Abstract: a ,b -Olefinically unsaturated organic nitriles are obtained by oxidizing the corresponding a ,b -olefinically unsaturated aldehyde in the liquid phase in the presence of ammonia and a catalyst containing a metal of group VIII of the Periodic System (i.e. Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, Pt).  The catalyst is suitably employed in an amount of 0.0001 to 0.1% by wt. of the aldehyde, a specified catalyst being tetracarbonyl-m -rhodium dichloride.  The oxidation is preferably effected at 0-100 DEG  C. in the presence of oxygen or gas mixtures containing oxygen and a solvent, suitably a water-miscible solvent, e.g. methanol, dioxan, may be present. In an example crotononitrile is prepared from crotonaldehyde; acrylonitrile may also be obtained from acrolein.
Patent GB-1138885-A (GB)
Title: Fluid pressure relief device
IPC: C04B35/52
Filed: 1966-11-14
Abstract: 1,138,885. Pressure-relieving devices. SOC. LE CARBONE-LORRAINE. 14 Nov., 1966 [12 Nov., 1965; 3 March, 1966], No. 51014/66. Heading F2V. A bursting disc for high temperature or corrosive fluids comprises an impermeable and chemically resistant membrane 4 of vitreous carbon on the pressure side, backed by a rupturable resistance plate 5 of graphite or amorphous carbon. Packing rings 1, 6 are interposed between the device and pipe flanges 2, 7. The plate 5 may have a weakening groove to provide a well defined opening on rupture.
Patent GB-1110317-A (GB)
Title: Finger guide for laminar material endless conveying systems
Inventor: LYONS STANLEY LEWIS
IPC: G03B27/58
Filed: 1964-12-16
Abstract: 1,110,317. Endless conveyers. HALL HARDING Ltd. 2 Feb., 1966 [16 Dec., 1964], No. 51187/64. Heading B8A. [Also in Division B6] Laminar articles, e.g. photographic papers are discharged from a multibelt conveyer 14 by means of a plurality of guide members 24 fitted over a shaft and spaced one between each of the discharge rollers 22 fixed thereto over which the conveyer belts run. The guide members 24 comprise a C- or 0-shaped portion 26; (27) (Fig. 2, not shown) for fitment over the shaft and two arms 28, 30 integral with an extending therefrom to meet at a point. The triangular space 32 between the arms is suitable for the insertion of a bar to hold the guide members stationary in relation to the shaft. Alternately the guide members may be supported from below by a bar 34. The bars may be connected to a suitable sensing means (not shown) whereby the inclination of the guide members can be varied to act as, e.g. a reject mechanism or a diversion mechanism operatable by a fire detector in the succeeding apparatus.