baber/WOPTO huggingface dataset:
Patent GB-607103-A (GB)
Title: Improvements in or relating to the production of organic fluorine compounds
IPC: H01B3/48
Filed: 1946-01-25
Abstract: 2,4,6-Tri-ffluoromethyl)-s-triazines are prepared by reacting a polyfluoroethylene containing at least three fluorine atoms, of the general formula F2C=CFX, where X is hydrogen or halogen, with ammonia under substantially anhydrous conditions and at a temperature below 100 DEG  C.  The reaction may be carried out in the presence of an organic solvent such as diethyl ether, dioxane or benzene and there may be added cupric acetate to moderate the reaction.  Preferably, a molar excess of ammonia is employed. The triazines are useful as pharmaceuticals, plasticisers, bactericides and dielectrics; on hydrolysis, they yield fluoroacetic acid.  In examples: (1) anhydrous ammonia is reacted in an autoclave with tetrafluoroethylene in the presence of cupric acetate and yields 2,4,6-tri-(difluoromethyl)-s-triazine which, on hydrolysis, yields difluoroacetic acid; (2) anhydrous ammonia is reacted with chlorotrifluoroethylene in ether in the presence of cupric acetate in like manner yielding 2,4,6-tri-(chlorofluoromethyl)-s-triazine. Other triazines which may be prepared are 2,4,6-tri-(mono-fluoromonobromomethyl)- and 2,4,6-tri-(mono-fluoromethyl)-s-triazines.  Additional starting materials mentioned are trifluorobromoethylene and trifluoroethylene. The Provisional Specification is not limited as regards temperature and the use of anhydrous conditions. Specification 583,264 is referred to.
Patent GB-1126442-A (GB)
Title: Improvements in carburettors
Inventor: HENDERSON ROBERT MCLAREN
IPC: F02M1/00
Filed: 1966-01-11
Abstract: 1,126,442. Carburetters. M. P. G. & H. ENGINEERING Ltd. April 11, 1967 [Jan. 11, 19661, No. 2584/68. Divided out of 1, 126, 441. Heading F1B. The invention relates to carburetters having a butterfly throttle member A1, Di with fuel distributing nozzles L1 in its surface, a segmental fuel chamber B, an arm B1 secured to the throttle member and movable arcuately in the chamber and a passage B12 in the arm connecting with the nozzles in the throttle member and opening into the fuel chamber. In a carburetter of the above type, the fuel distributing nozzles are formed on opposite sides of the spindle of the butterfly throttle member, the nozzles on each side of the spindle being constituted by a plurality of holes distributed longitudinally of the spindle across the air passage or choke tube. The air passage is a hollow bore formed in a block AD and fuel is supplied to an axial passage FS in the throttle spindle from a fuel chamber contained in a housing disposed alongside the block. The housing is adapted to be secured to the block with complementary surfaces of the housing and block being in mating engagement with one another, the complementary surfaces extending generally at right angles from the axis of rotation of the throttle spindle and being so shaped that mating engagement therebetween is obtainable when the carburetter is assembled with the block arranged in any one of a range of angular dispositions relative to the fuel chamber housing whereby the axis of the bore may be arranged at any one of a range of angular dispositions relative to the horizontal level of fuel in the fuel chamber. The carburetter is similar to that described in the parent Specification.
Patent GB-798575-A (GB)
Title: Improvements in and relating to flying shears
IPC: B23D25/06
Filed: 1956-01-26
Abstract: 798,575. Shearing. SCHLOEMANN AKT.- GES. Jan. 26, 1956 [March 17, 1955], No. 2585/56. Class 83 (4). Flying shears for cutting moving work has a main drive rotating at a speed corresponding to the speed of the work and an auxiliary drive of variable speed for controlling the speed between cutting operations to vary the length of cut, both drives being connected alternately through friction clutches. A shears with a fixed lower knife 1, Fig. 1, on a pivoted carrier 3 has an upper knife carrier 5 which is vertically slidable on guide bars 6 attached to the pivoted carrier 3 and actuated by a crank-arm 10 on a shaft 8 which is driven through a pinion 11a from a shaft 13 and pinion 12. The main drive comprises a motor 16 and magnetic clutch disc 15 which drives a clutch plate 14 keyed on the shaft 13. The auxiliary drive comprises a variable speed motor 23 and magnetic clutch disc 22 which drives a second clutch plate 21 keyed on a shaft 19. A connection between the shafts 19 and 13 is provided by a pinion 20 fixed on the shaft 19 and driving a unitary pinion 18 and magnetic clutch disc 17 which is engageable by the clutch plate 14, when disconnected from the main drive clutch plate 15. For cutting work of longer lengths a slowly rotatable drive for bringing the shears to the correct starting position is provided by a motor 30, clutch 28 and worm and worm-wheel drive 25, 26. The worm-wheel 25 slowly rotates a magnetic clutch disc 24 which is normally freely rotatable on the shaft 19 but may drive the shaft through the clutch plate 21 when disconnected from the auxiliary drive clutch plate 22. In a modification (not shown), a pair of main drives engage on each side of the shears pinion 11a and a single auxiliary drive is coupled through pinions to both drives. Specifications 718,477, 731,086, [Group XXIV], and 736,599 are referred to.
Patent GB-1337504-A (GB)
Title: Pin contact for a miniature connector and method of making same
IPC: H01R13/05
Filed: 1971-01-19
Abstract: 1337504 Making contact pins BUNKER RAMO CORP 19 Jan 1971 [20 Jan 1970] 2621/71 Heading B3A [Also in Division H2] A pin contact for a miniature electrical connector comprises separate longitudinally extending tines 64, 66 which have their forward ends in contact but which are otherwise spaced apart. The thinner tine 66 is substantially straight, the tine 64 may be bowed. The pin may be provided with means for crimping to the end of a wire. A plurality of contact pins (16) (Fig. 1, not shown) may be provided in a single block 13 of a contact member 12.  A method of making a contact pin includes slotting a rod to form the tines 64, 66, and forcing the ends of the tines against the inner surface 74 of a die 70 causing their ends to engage at 76 and their intermediate portions to bow away from each other as far as allowed by bore 72. The thinner tine 66 may be reformed to a substantially straight position by inserting the pin into a second die (80) (Fig. 7, not shown). The contact pins are preferably made of beryllium-copper, although phosphor bronze or stainless steel may be used.
Patent GB-1498383-A (GB)
Title: Additive for cement compositions
IPC: C04B38/08
Filed: 1976-01-23
Abstract: 1498383 Cementitious composition KOPPERS CO Inc 23 Jan 1976 [23 Jan 1975] 02753/76 Heading C1H [Also in Division C3] A slurry which cures to a concrete comprises water, cement, expanded polystyrene, and a homogeneous water-soluble composition comprising (S) a surfactant, (B) a liquid bituminous material, (P) a poly(ethylene oxide) resin, (L) a lignosulphonate salt and (D) a diatomaceous earth. There is preferably, by wt., 40-60% (S) + (B) and 60-40% (P) + (L) + (D). (S) may be (i) a cationic surfactant, or a blend of (ii) anionic and (iii) non-ionic surfactants. (i) may be a quarternary ammonium salt or secondary amine, (ii) may be an alkyl or alkyl aryl sulphonate, an Na salt of formaldehyde condensed naphthalene sulphonic acids, or an Na salt of a polymeric carboxylic acid, and (iii) may be a condensation-product of methylene oxide and a fatty acid, an alcohol, or a phenol. (B) may be an asphalt or tar having a Saybolt viscosity of 10-4000 SFS at 50 C. and may be obtained by diluting a solid or semi-solid bituminous material with a petroleum distillate fraction. (P) may have MW 250,000-500,000. (L) may be a Ca or Na salt. The expanded polystyrene particles have density 1-10 lb/cu.ft. Specification 1,333,817 is referred to.
Patent GB-1517141-A (GB)
Title: Horizontal mercury cathode electrolyser
IPC: C25B1/36
Filed: 1977-01-24
Abstract: 1517141 Horizontal Hg cathode cell COMMISSARIAT A L'ENERGIE ATOMIQUE 24 Jan 1977 [30 Jan 1976] 02762/77 Heading C7B The cell has a transversely sloping diaphragm 8a, 8b separating upper anode and lower cathode compartments and a plurality of longitudinally inclined, parallel Hg channels 6 in the cathode compartment which are vertically staggered so that a plane passing through their longitudinal midlines is parallel to the diaphragm. The anodes are also parallel to the diaphragm which latter may have a dihedral shape as shown. The transverse slope exceeds the longitudinal slope. A cell length: width ratio of at least 10 is preferred. A ceramic or ion exchange diaphragm is specified. A desired pressure balance across the diaphragm may be achieved by adjustable electrolyte overflows, e.g. vertically movable constant-head type pipes, whose movements may be automated via a flowmeter and inter-connected servo-mechanism. Reduction of U IV to U III (chloride) is exemplified.
Patent GB-109391-A (GB)
Title: Improvements in and relating to Methods of and Means for Slaking Limes and Cement.
Inventor: CANDLOT CHARLES
IPC: C04B2/08
Filed: 1917-02-27
Abstract: 109,391. Candlot, C. Feb. 27, 1917. Lime.-The slaking of lime and of cements containing lime, without hydrating the aluminates and silicates contained therein is effected by sprinkling water on successive films of material fed into a hopper mounted on a vertical rotary shaft and provided with sprinkler nozzles arranged along a radius. The apparatus comprises a vertical rotary hopper 1 attached to but movable vertically along a shaft 2 which carries a base-plate 5 having a footstep bearing 6 on a rod 7 which is suspended by links 10, 11 resting through spiral springs 12 on supports 16, 17. The rod, 7 also carries a rod 8 in a bearing 9. The hopper 1 is driven by the gear 3 and shaft 2 and receives lime from a shoot 21 and water from a pipe 22. The supply of lime and water is controlled by means of the motion of the rod 11 under the action of the varying weight of the lime on the base-plate 5. If the lime feed slackens or stops, the weight becomes reduced owing to the action of scoops 18 carried by bell-crank levers 19 pivoted at 20 and jointed to the rods 10, 11, the scoops continually discharging the treated material as at 25. The springs 12 therefore raise the rods 10, 11 thereby moving the scoops 18 outwardly so that they discharge at a smaller rate, and if a sufficient loss of weight has occurred, the water supply is interrupted by an extension of the rod 11 tilting a funnel 27 through which the supply tank 26 is filled, so that the water flows into the right hand compartment of the tank 26 which has an outlet to a waste well. The supply of water is resumed when the weight of the material on the plate 5 is sufficient to depress the rods 10, 11 far enough to tilt the funnel 27 into the position shown in dotted lines. A slaking apparatus 32 constructed as above described may be arranged over a pit 33, lime being supplied at 34 and withdrawn from the pit at 35, Fig. 3, or the slaking apparatus may be mounted on wheels so as to serve several pits 36, 37, 38, Fig. 4, in succession.
Patent GB-832063-A (GB)
Title: Electrical circuit elements
Inventor: ROUP ROLLAND R
IPC: C04B35/468
Filed: 1956-01-30
Abstract: 832,063. Semi-conductor devices; capacitors. GLOBE-UNION Inc. Jan. 30, 1956, No. 2958/56. Class 37. A circuit element such as rectifier, thermistor, varistor or capacitor comprises a high dielectric constant, high resistivity, uniform N-type body of reduced, sintered, barium titanate having at least one rectifying electrode. In one example, pellets consisting of 84.5% of barium titanate, 15% of strontium titanate and 0.5% of rare earth oxides are fired in air at 2450  C. for ¢ hour and then in hydrogen for ¢ to 1 hour at 2150 C., reducing the titanates to form an N-type semiconductor body. Part of the surface of the body is then painted with silver and fired again in air or nitrogen at 1350 C., to form a rectifying electrode. Alternatively other alkaline titanates, zirconates or stannates may be mixed with the barium titanate. Firing on platinum, evaporating zinc or applying graphite are also specified as examples of methods of providing the rectifying electrode. Fig. 1 shows a capacitor with an interelectrode resistance of the order of a megohm, comprising the barium titanate body 10 with two rectifying electrodes 12 of the type described. Alternatively one of the electrodes may be ohmic, which according to the Specification may be effected by coating one of the layers 12 with a low-melting-point solder. The device may then be used as a rectifier or, if polarized, as a capacitor. Capacitance may be increased by providing a hill pattern for the electrodes, as shown in Fig. 6. The two electrodes may be on one side of the disc, as shown in Fig. 7. The body may be rectangular or tubular instead of disc-shaped. Specification 682,794 is referred to.
Patent GB-1068231-A (GB)
Title: Improvements in screw-and-nut mechanisms incorporating recirculating ball screws
Inventor: BIRD WALTER JOHN
IPC: F16H25/22
Filed: 1964-01-23
Abstract: 1,068,231. Screw-jacks. BRITISH AIRCRAFT CORPORATION (OPERATING) Ltd. Jan. 15, 1965 [Jan. 23, 1964; June 25, 1964], Nos. 3005/64 and 26377/64. Heading B8J. [Also in Division F2]  A recirculating ball nut 10 is combined with a plain nut 1À5 which acts as a lock-nut to prevent uncontrolled reversal of the intended direction of movement when the input torque fails. The lock-nut 15 is arranged on a screw 11 in tandem with the nut 10 and has a peg 19 maintained centrally between two stops 17, 18 by springs 20, 21 so that the thread grooves on the lock-nut 15 have thread continuity with the nut 10 in the unloaded condition shown with balls 12 having clearance from both the nut 10 and the screw 11. Application of an axial load brings the threads on the locknut 15 into contact with the screw 11 to support the load, Fig. 2 (not shown), without risk of jamming. Rotation of the screw 11 causes the lock-nut 15 to rotate with it, taking up the clearance between the balls 12 and the thread grooves and to transfer the load to the nut 10. Continued rotation of the screw 11 displaces the load, further rotation of the lock-nut 15 being prevented by the peg 19 and stop 20, Fig. 3 (not shown). Fig. 4 (not shown) illustrates the condition when, the mechanism having displaced a load, is held in the loaded condition preparatory to reversal. Reversal of the screw 11 rotates the lock-nut 15 so that the load is taken up by the nut 10, peg 19 being prevented from further rotation by the stop 18. If the screw 11 " runs away " it reverses under its own weight or reaction of the load, the lock-nut 15 immediately rotating to the position where the peg 19 is centrally between the two stops 17, 18, taking the load and restoring the balls 13 to the unloaded condition. Fig. 6 (not shown) illustrates an embodiment wherein the lock-nut is in two parts 15a, 15b with pegs 19a, 19b urged in opposite directions A, B between stops 17a, 18a and 17b, 18b, respectively. The embodiment illustrated in Fig. 7 (not shown), is similar to that in Fig. 6 except that the lock-nut parts 15a, 15b are arranged one at each end of the nut 10.
Patent GB-344611-A (GB)
Title: Improvements in or relating to incandescent electric lamps
IPC: H01K1/32
Filed: 1930-01-29
Abstract: 344,611. Electric incandescent lamps. ECK, J. VAN, 316B, Nieuwe Binnenweg, and FEKKES, H., 13A, Middellandplein, both in Rotterdam, Holland. Jan. 29, 1930, No. 3071. Convention date, Aug. 9, 1929. [Class 39 (ii).] In an electric lamp bulb the part of which behind the filament is silvered to form a reflector the shape of the silvered portion is that generated by the revolution of a parabola about a line parallel to its axis, the filament being arranged in the circle generated by the focus of the parabola and a considerable portion of parabolic surface occurring between this circle and the axis of rotation. In the arrangement shown the portion a of the bulb is that generated by the rotation of the parabola, the remainder of the section consisting of a straight portion b and a closing portion c. The filament e is supported in the appropriate position by wires g.
Patent GB-214748-A (GB)
Title: Machine for fixing feathers upon fabrics
IPC: A41G9/00
Filed: 1923-02-03
Abstract: 214,748. Wever, F. Feb. 3, 1923. Actuating-mechanism.-A spring-pressed valve 9 situated in a suction pipe is actuated through a lever 9b from a two-part cam 9<d> which is adjustable to vary the duration of opening of the valve.
Patent GB-561824-A (GB)
Title: Improvements in and relating to electric push button switches
IPC: G04F1/00
Filed: 1943-02-27
Abstract: 561,824. Press 'button retractive switches. BLACKBURN AIRCRAFT, Ltd., and METCALFE, F. Feb. 27, 1943, No. 3260. [Class 38 (v)] A retractive switch has at least two contact members adapted.to bridge pairs of contacts simultaneously, and dash-pot means for retarding'the return of at least one of the contact closing members. Thus, in the example, the contact member 7, displaceable against a spring 5 on a stem 3 and a further contact member 8 displaceable against a spring 6 on a second, co-axial stem 4 and connected to a dashpot device 14 so that on pressing button 2 the contacts are simultaneously closed and the dashpot operated to drive air from a cylinder 15 through a non-return valve 16, while, on releasing the button, contact 7 opens its contacts immediately but stem 4 separates from stem 3 and spring 19 returns contact 8 after an interval determined by the setting of a needle valve 21.
Patent GB-572637-A (GB)
Title: Improvements in and relating to processes for the production of acetone and butyl alcohol by fermentation
IPC: C12P7/28
Filed: 1941-03-11
Abstract: In producing acetone and butyl alcohol by fermentation of molasses by bacteria such as Clostridium acetobutylicum, a mash of rice bran or maize meal is inoculated with the bacteria and, after fermentation has proceeded vigorously, is added to the molasses mash and the fermentation continued until all the fermentable carbohydrate is exhausted.  The cereal mash is used in an amount such that the fermentable carbohydrates contained in it are from 0.2 to twice the sugar contents of the molasses mash.  The spent mash contains vitamins B1 and B2, and may be used in the p  production of foodstuffs.  Specifications 496,137, 518,962, [both in Group VI], and 572,643, and U.S.A. Specifications 1,510,526 and 1,992,921 are referred to.ALSO:In producing acetone and butyl alcohol by fermentation of molasses by bacteria such as Clostridium acetobutylicum, a mash of rice bran is inoculated with the bacteria and, after fermentation has proceeded vigorously, is added to the molasses mash and the fermentation continued until all the fermentable carbohydrate is exhausted.  The cereal mash is used in an amount such that the fermentable carbohydrates contained in it are from 0.2 to twice the sugar content of the molasses mash.  The spent mash contains vitamins B1 and B2, and may be used in the production of foodstuffs.  Specifications 496,137, 518,962 and 572,643 and U.S.A. Specifications 1,510,526, 1,911,411 and 1,992,921 are referred to.
Patent GB-637047-A (GB)
Title: Improvements relating to fairleads
IPC: B65H75/44
Filed: 1948-02-05
Abstract: 637,047. Fairlead. EUGENE, Ltd., and LEATHER, G. B. Feb. 5, 1948, No. 3410. [Class 78 (v)] A fairlead comprises a pair of rollers 22 and 26 mounted with axes parallel in a frame provided with a gap 16 through which a cable can be passed breadthwise in between the rollers, a gate 28 for closing the gap, and a spring 23 tending to close the gate and also to urge the rollers to grip the rope therebetween. As shown, a cross-shaped piece of metal is bent to form the sidepieces 11, 12 of the frame and parts 17, 18 having holes 19 by which the frame can be attached to a hair-waving machine. In the frame are fixed pins 20 and 21, of which pin 20 is fixed and carries roller 22, and pin 21 carries spring 23, one end of the spring bearing against the frame and the other end of the spring being bent to form axis 27 carrying movable roller 26 and also gate 28. Gate 28 has slot 29 which engages with pin 20 so that roller 26 is thereby resiliently mounted against spring 23. When the gate 28 is opened to allow a cable to enter it pivots about axis 27 and then contacts pin 21 by means of a tail portion 30 and then pivots resiliently about this pin 21. Gate 28, rollers 22 and 26, and lining 31 are made of insulating material.
Patent GB-1078089-A (GB)
Title: Device for fixing handles to vessels
IPC: A47J45/06
Filed: 1966-01-26
Abstract: 1,078,089. Device for fixing handles to vessels. SOCIETE DES VERRERIES INDUSTRIELLES REUNIES DU LOING. Jan. 26, 1966 [Jan. 26, 1965], No. 3525/66. Heading A4A. A device for fitting a handle to a vessel comprises in combination a body provided with a socket of dovetail cross-section with converging sides, adapted to receive a plug of complementary shape provided on the vessel, and a detachable member held by adjustable screw means against that end of the socket where the diameter of crosssection is largest, said detachable member making contact with the plug and being adapted to keep it tightly interlocked with the socket without play, in any position of the vessel, means being provided for fixing the device to the handle. A typical device is shown in the figure which represents a longitudinal cross-section of the device when attached to the vessel wherein 5 is the detachable member and 8 is the plug provided on the vessel.
Patent GB-1451742-A (GB)
Title: Skin-care and skin-protection agents with a content of skin miusture-containing agents
IPC: A61K8/365
Filed: 1975-01-28
Abstract: 1451742 Skin cosmetics HENKEL & CIE GmbH 28 Jan 1975 [29 Jan 1974] 3571/75 Heading ASB A skin-care or skin-protection agent comprises 1-20 weight % of a polycarboxylic acid of formula: wherein R is a C 1-8  alkyl group substituted by one or more hydroxy, or carboxy groups or groups of formula so that there are at least two carboxyl groups in the molecule and M is H, alkali metal, alkaline earth metal, ammonium, alkylammonium or hydroxyalkylammonium. Compounds specified include diglycolic acid sodium salt, bis-O- carboxy methyl glycol sodium salt, mono-O- carboxymethyl tartaric acid sodium salt, O- carboxymethyl lactic acid sodium salt and O- carboxymethyl tartronic acid sodium salt. Examples disclose day cream, baby cream, night cream, boron/glycerine cream, sunprotection cream. face mask, after-shave and face lotion.