baber/WOPTO huggingface dataset:
Patent GB-462774-A (GB)
Title: Improvements in and relating to lubrication systems
IPC: F16N7/32
Filed: 1936-02-18
Abstract: 462,774. Lubricating. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 18, 1936, No. 4925. Convention date, Feb. 19, 1935. [Class 12 (iii)] A lubricant system for a rotatable shaft 11 comprises a lubricant reservoir 19 below the bearing 18, and an impeller 26 on the shaft at the other side of the bearing to draw a current of oil vapour through the bearing. The lower end of a conduit 23 extends below the oil level 21 and the upper end is adjacent the bearing. The impeller 26 may have radial grooves 31. One end of a duct 32 opens near the periphery of the impeller 26 and the other end is connected to one end of a duct 33. The other end of the latter opens near the upper end of the conduit 23. In operation, vapour is drawn through the bearing by the impeller 26 and is passed through the ducts 32, 33 to atomize oil drawn up the conduit 23. When applied to the spindle of a machine for rayon spinning, in which an acid shield 36 is fitted above the bearing cover extension 15, the impeller 26 counteracts the effect of the shield 36 to suck oil vapour from the bearing. In a modification the duct 33 has a regulating valve adjacent the upper end of the conduit 23.
Patent GB-553224-A (GB)
Title: Improvements relating to oxy-acetylene welding plants or the like
IPC: F16K17/36
Filed: 1942-04-15
Abstract: 553,224. Valves. WRIGHT, R. N., and HALL, T. April 15, 1942, No. 4939. [Class 135] A valve device for controlling the supplies of oxygen and acetylene to a welding torch has two diaphragm valve members actuated by plungers secured to a balance member pivoted to an actuating lever from which the torch is suspended when out of use. In the form shown in the Figures the diaphragm valve members 15 are held against shoulders 14 in the casing 11 by plates 13 and are adapted to co-operate with removable seating bushes 17. The valve diaphragms are depressed against the action of springs 19 by plungers 24 secured to the balance member 25. This member is pivoted at 26 to the actuating lever 27 pivoted at one end to a fixed bracket 29 and at the other end provided with a hook 271 adapted to receive the torch when out of use.
Patent GB-1330078-A (GB)
Title: Compositions for processing silver halide photographic light- sensitive element
IPC: G03C5/305
Filed: 1972-02-02
Abstract: 1330078 Processing solutions FUJI PHOTO FILM CO Ltd 2 Feb 1972 [3 Feb 1971] 4946/72 Heading G2C Ethylene bis (B-oxyethylamine)-tetraacetic acid or a sodium or potassium salt is employed as chelating agent (for calcium ions) in a processing solution for a photographic silver halide material in an amount of 0.1-10 gm/l. The chelating agent may be incorporated in the processing solution alone or together with other ingredients. The processing solution may be for developing, fixing bleaching, hardening, stopping or stabilizing.
Patent GB-731258-A (GB)
Title: Process for the manufacture of a quinoline carboxylic acid lactam
Inventor: COHEN AARON
IPC: C07D457/04
Filed: 1952-02-27
Abstract: 31 - Amino - 1 - methyl - 1 : 2 : 3 : 4 - tetrahydro - 5 : 6 - benzoquinoline - 3 : 7 - dicarbboxylic acid lactam is manufactured by reacting 4-hydroxynaphthostyril with a secondary amine and formaldehyde in a Mannich reaction, condensing the Mannich base with a malonic acid derivative of the formula CH2(R1)R11 (wherein R1 and R11 are identical or different and represent CN, carbalkoxy, carbobenzyloxy or CONH2) if necessary in the form of an alkali metal derivative, to form a 3 - R1 - substituted - 31 - amino - 3 : 4 - dihydrobenzocoumarin - 7 - carboxylic acid lactam or a 4 - hydroxy - 5 - (21 : p  21 - R1 : R11 - disubstituted - ethyl) - naphthostyril, converting the product into (4 - hydroxynaphthostyril - 5)-malonic acid by alkaline hydrolysis and subsequent neutralization, reacting the last-named substance with a secondary amine and formaldehyde in a Mannich reaction, and heating the alkali-metal salt of the product, or of the monocarboxylic acid obtained therefrom by decarboxylation, with excess methylamine under pressure.  The two Mannich reactions are advantageously carried out in a solvent, with heating if necessary, suitable secondary amines being dimethylamine, diethylamine, morpholine or piperidine.  The neutralization following the alkaline hydrolysis is usually effected with a quantity of acid equivalent to the alkali employed for the hydrolysis, but, if the lactam ring has been opened in this process, a slight excess of acid is used in order to re-form this ring.  The hydrolysis is mild in the case of carbalkoxy or carbobenzyloxy group but must be more vigorous for CN or CONH2 groups.  In an example, a suspension of 4-hydroxynaphthostyril in ethanol is allowed to stand or warmed with aqueous dimethylamine and aqueous formaldehyde, the resulting 4 - hydroxy - 5 - dimethylaminomethylnaphthostyril is refluxed with the sodium derivative of diethyl malonate in toluene to produce 31 - amino - 3 : 4 - dihydro - 5 : 6 - benzocoumarin - 3 : 7 - dicarboxylic acid lactam ethyl ester and some 4-hydroxy-5-(21 : 21-dicarbethoxyethyl) - naphthostyril, the crude mixture of these esters is stirred or refluxed with aqueous caustic potash and the product neutralized with dilute hydrochloric acid, the resulting 4 - hydroxy - 5 - (21 : 21 - dicarboxyethyl)-naphthostyril is condensed with aqueous dimethylamine and aqueous formaldehyde to form (4 - hydroxynaphthostyril - 5) - methyl N : N - dimethylaminomethyl malonic acid, which is decarboxylated by gentle heating to the corresponding acetic acid, and the latter is heated in a sealed tube with potassium hydroxide solution and excess of aqueous methylamine. Specification 276,126, [Class 2 (iii)], is referred to.
Patent GB-492592-A (GB)
Title: Improvements in and relating to screw thread grinding machines
IPC: B24B19/02
Filed: 1937-02-22
Abstract: 492,592. Grinding screw threads. HORSTMANN, S. A., and HORSTMAN, Ltd. Feb. 22, 1937, No. 5213. [Class 60] A screw-thread-grinding machine comprises a multi-ribbed grinding-wheel 10 and a crossslide 12 having thereon a headstock 13 to receive a removable work-carrying quill. The quill comprises a sleeve 14, adapted to be clamped in the headstock 13, in which is rotatably supported, at the forward end 20, a lead screw 15 provided with a threaded part 17, or a chuck, &c. to receive the work-piece 18. The screw engages a nut comprising two parts 21, 22, the part 21 being secured in the sleeve 14 and the part 22 being slidable, but not rotatable, in the sleeve, and the two parts being urged apart by a spring 26; by this means backlash is avoided. The rear end of the screw carries a collar 141 slidable in a sleeve 143 slotted to engage a pin 142 on the collar and carrying a sprocket 144 whereby the screw is rotated, and through the nut, traversed axially to carry the work-piece 18 across the grinding-wheel. The slide 12 is spring or weight loaded to prevent backlash, and means are provided for adjusting the quill or the wheel 10 to suit the helix angle of the thread. In a modification, the work is held between centres, one centre being carried by the lead screw, which may engage a split nut as described above, or a one piece nut urged axially by a spring, the other centre being spring mounted, so as to act through the work to take up backlash in the lead screw. Specification 492,591 is referred to.
Patent GB-193854-A (GB)
Title: Improved process and apparatus for the production of hot water
IPC: F24H1/10
Filed: 1923-02-22
Abstract: 193,854. Technisches Bureau A. Sch³ckher. Feb. 22, 1922, [Convention date]. Heating water; geysers. - Water issuing from a spray k situated in a vertical flue e above a mixing chamber creates a suction on the combustion gases rising from burners f through apertures h above an inner casing c and the space a. The water falls back in a finely divided state over a baffle r on to the shield g and thence to outlet m through loose the outlet m through loose filtering material n. By allowing water to enter at p the filter can be flushed.
Patent GB-972415-A (GB)
Title: Electric-motor-operable displacing device
IPC: F16H25/20
Filed: 1963-02-08
Abstract: 972,415. Electric motor driving arrangements. H. KORTHAUS, and R. WILKE. Feb. 8, 1963 [March 8, 1962], No. 5252/63. Heading H2A. [Also in Division B8] In a screw-and-nut actuator, the rotating nut 11 is driven by an electromagnetically operated clutch in a casing compartment 102 separate from the driving motor 2, and prevented from running back by an electromagnetically operated brake in a further compartment 103. By varying the excitation of the driving clutch the maximum effort of the operating rod 18 may be adjusted. Moreover, the arrangement enables the actuator to be stopped in any position, and the heat generated in the screw is remote from the motor. The magnetic clutch assembly 21, 23 is mounted in a rotatable cage driven from the motor rotor by inter-engaging splines 28a and runs in bearings 20 in the casing partitions on either side of the central compartment 102. The spindle nut 11 is mounted at either end in roller bearings 12 which permit axial movement which operates a cut-out switch when the load resistance reaches a preset value. The clutch consists of an annular electromagnet 21 excited by a coil 23, and acts on iron discs 24, 24a carried by ball bearings on the nut 11 and coupled thereto in opposite directions by freewheel clutches 25, 25a respectively. It is the magnetic adhesion of one or other of these discs to the clutch-pole 23 that determines the limiting thrust that can be applied by the actuator before axial movement of the nut disconnects the drive. In the end compartment 103 there is an electromagnet 30 which is carried by balls 32 in axial grooves 33 so that it can slide axially to follow a brake disc 29 on the nut but cannot rotate. Excitation of this electromagnet enables the actuator to be locked in any position. The brake disc 29 carries a depending skirt 35a which operates the limit switch 35 which serves to switch off the motor and energize the brake when the nut is axially displaced. The clutch and brake surfaces may be toothed for better grip. Alternative forms of permanent and electromagnetic clutch are described (Figs. 2 and 3, not shown) having a single disc mounted on the nut.
Patent GB-1514444-A (GB)
Title: Stabilized polycarbonate compositions
IPC: C08K5/523
Filed: 1977-02-09
Abstract: 1514444 Stabilized flame-retardant polycarbonate compositions MOBAY CHEMICAL CORP 9 Feb 1977 [12 Feb 1976] 5303/77 Heading C3R A composition comprises a polycarbonate (P) having sufficient halogen therein to provide flame retardant characteristics, and a stabilizing amount of stabilizer (S) being (A) (D) the reaction product of 3 moles with 1 mole alpha,#-unsaturated aldehyde, or (E) where n is 1 or 2, R is C1-8 alkylene or alkylidene, R<1> is C4-22 hydrocarbyl, R<11> is C1-22 alkyl, and R<111> is a C#10 group. (P) may be a copolymer whose components comprise halogenated phenol or bisphenols, or it may be a blend of halogenfree and halogen-containing polycarbonates. Also present may be BaCO3, SrCO3, or CaCO3; TiO2; or ceryl cerotate (mould-release agent).
Patent GB-196753-A (GB)
Title: Improvements in fitments and the like for use in connection with electric wiring systems
IPC: H02G3/16
Filed: 1922-02-23
Abstract: 196,753. Chase, F. C. B. Feb. 23, 1922. Connection fittings; junction boxes ; earthcontinuity couplings.-A junction box comprises a bonding member a secured to a support by screws h. This member carries screw-down bonding clamps e of the forms shown in Figs. 6, 7 and 8, and a central screw b, for securing a wood block or a cover c. An additional bonding member a<1> may be secured to the member a by the central screw, or an insulated plate carrying screws and nuts for concentric wiring connections. The members a, a<1> have grooves a<6> to facilitate bending for back connections. The cover is slotted for the necessary springs and lined with a loose fibre ring adapted to be cut as required or to be turned to close raised openings in the cover. A member 1, Fig. 11, with a deep saddle portion carrying insulated terminals m may be secured behind the junction box.
Patent GB-501951-A (GB)
Title: Improvements in and relating to constructional toy building elements
IPC: A63H33/06
Filed: 1938-02-21
Abstract: 501,951. Toy building-blocks. PREMO RUBBER CO., Ltd., and LEVY, A. Feb. 21, 1938, No. 5477. [Class 132 (iii)] Toy building-elements of the kind comprising resilient portions.and connecting pegs, are made in the form of a corbel having a part 5 to bear upon the upper face of an adjacent element and another part 6 to bear on an adjacent surface substantially at right-angles to the upper face, the corbel having a plurality of interconnecting means 9 for co-operation with interconnecting means of adjacent elements. Pegs may be provided instead of recesses 9. Specification 459,452 is referred to.
Patent GB-553232-A (GB)
Title: Preparation of organo-mercury compounds
IPC: C07F3/10
Filed: 1941-04-28
Abstract: 553,232. Organo - mercury compounds. TRIGGS, W. W. (Abbott Laboratories). April 28, 1941, No. 5477. [Class 2 (iii)] Organo-mercury compounds are prepared by reacting a mercury compound with a phenylene dicarboxylic acid, one or both of whose carboxylic groups has been converted into an amide containing an alkylene group. The products, which contain a mercurated alkyl group, possess diuretic properties. Examples are given of the mercuration with mercuric acetate of (1) bismonoallyl - phthalamide prepared by reacting 1 mol of phthalyl chloride with 4 mols of allylamine or 2 mols of allylamine in presence of sodium hydroxide, or by reacting ethyl phthalate with excess of allylamine ; the product is mono- or di-mercurated according to the amount of mercury salt used ; (2) monoallylamide of phthalic acid obtained by reacting phthalic anhydride with allylamine in equimolecular proportions ; (3) monoallylamide-hydroxyethylamide of phthalic acid prepared by heating equimolecular quantities of phthalic anhydride and monoethanolamine to form hydroxyethylphthalimide, which is then treated with allylamine to excess. The products may be hydrolysed or solubilised by treatment with sodium hydroxide or other alkali metal hydroxide.
Patent GB-1463643-A (GB)
Title: Channel plate
IPC: H01J9/12
Filed: 1975-02-10
Abstract: 1463643 Electron multipliers; image intensifier and pick-up tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 Feb 1975 [13 Feb 1974] 5492/75 Heading H1D A secondary emissive microchannel plate has channels with a curved slope-inversion section at which the sign of the slope is changed, the section being nearer the output surface than the input and a distance from the output surface not greater than a few channel diameters, the slope-inversion section dividing the length of the channel between a relatively short output section and a relatively long main section. The remaining portions (AK) and KC), Fig. 3 (not shown), may be straight or slightly curved. The construction reduces energy dispersion and electrical amplitude dispersion in the output signal, saturation being achieved at lower voltages by a more local charge accumulation, as discussed w.r.t. Fig. 4 and Figs. 2, 5 and 6 (not shown). The energy spectrum width and levels may be further reduced by metallization 41 extension into the channels, the E field being cancelled beyond the final point of incidence. Fabrication includes application of opposing forces (Fig. 7, not shown), a temperature gradient existing across the glass, the forces being subsequently reversed for the output end curvature. Electrons from a photocathode (95) (Fig. 9, not shown) or other means may be incident on the plate, while grid (93) may be used for collection. Emission may be controlled by cross-bar electrodes (Figs. 10, 11, not shown). Rapidly changing phenomena, e.g. X-rays from a plasma, may be incident on a Gd converter (121), (Fig. 12, not shown) channel plate (122) converting the widely dispersed electrons to only slight dispersion. The emission may be blocked by a suitable potential on electrode (123) of second plate (125). A Vidicon type camera tube (Fig. 13, not shown) comprises photoconductive layer (131) (e.g. Se with SnO 2  conductor covering layer (131<SP>1</SP>), grid (132), uniformly illuminated photocathode (95) and a matrix-channel plate assembly similar to Fig. 10 providing a scanning beam of slow electrons. Dimensions and detailed potential disclosures are included.
Patent GB-163146-A (GB)
Title: New or improved protecting jackets or covers for the hand pieces of dental apparatus
IPC: A61C1/16
Filed: 1920-02-24
Abstract: 163,146. Barclay, T., Round, H., and Broderick, R. A. Feb. 24, 1920 Dental and like engines.- Hand-pieces a of dental apparatus are provided with a jacket or cover b in the form of a sleeve of calico or other similar non-metallic material b, preferably waterproofed, so that a fresh cover may be used to avoid infection from the saliva of another patient. The opening b<1> through which the drill or burr passes into the hand-piece is strengthened as by an eyelet c. The other end of the cover may have a thickened part or rubber ring to secure it in position, or clips may be used for this purpose. The covers are suitably shaped for use where the drill enters the hand-piece other than axially.
Patent GB-651079-A (GB)
Title: Method of treating peat and peaty substances for the production of a manure or fertilizer
IPC: C05F7/00
Filed: 1948-02-24
Abstract: Manures are made by breaking up peat in a peat bed, collecting the aerated peat and layering it on a bed of divided or broken up composted sewage sludge and/or house refuse, the composted material being sufficiently active to effect by heat a partial dehydration of the peat whereby the peat is able to sustain aerobic bacteria originating from the composted material, allowing the resulting bed to stand for a few days and then effecting a thorough mixing of the contents of the bed.  The composted material may be made either by mixing lime with sludge and/or refuse, and/or mixing a wetter or drier vegetable substance with the sludge and/or refuse, or according to Specification 425,411.  Peaty substances, such as vegetable material obtained from waterways &c. may be used instead of or together with the peat.  Additional peat and/or peaty substances may be added to the layered material at the time the contents of the bed are mixed, and the product may be used wholly or in part in place of the composted material as the starting material.
Patent GB-526542-A (GB)
Title: Improvements in or relating to the absorption of bromine
IPC: C01B7/09
Filed: 1939-02-18
Abstract: 526,542. Bromides and bromates. WILLIAMSON, A. T., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 18, 1939, No. 5512. [Class 1 (iii)] A process for absorbing bromine from gases containing it, e.g., from air blowing chlorinated brine, comprises treating the gas with an alkaline absorption liquor in a series of cyclically operated absorption towers, the flows of gas and liquor in the series as a whole being counter-current and in the towers either co- or counter-current, and reducing the back pressure of bromine exerted by the circulating liquor by employing in association with at least one tower such a volume of circulating liquor that the periodic time of circulation for that tower exceeds a time to move to = 5W/QL minutes (W being the total rate of absorption in kg. per minute and QL is the rate of liquor circulation in the tower in c. meters per min.) and/or by heating at least part of the circulating liquor associated with at least one tower, while the liquor is outside the tower, the liquor being cooled before it is again brought into contact with the gas. Preferably at least one tower at or near the end of the series has associated with it a volume of circulating liquor greater than the average volume per tower. The absorbing liquor may be a 3-12 per cent. aqueous solution of sodium carbonate, caustic soda or borax. In a typical example, illustrated by Fig. 1, the volume of liquid associated with each tower is 8 c.m., the liquor circulating rate being .278 c.m. per minute and the total rate of absorption is 0.164 kgs. per minute. The periodic time of circulation is 28.8 minutes, i.e., equal to 48.8 W/QL. Five towers only of a given efficiency are required compared with nine in the known process to absorb 97 per cent. bromine in the original gas and the total liquor volume is 40 c.m. In a further example (Fig. 2) each tower has 10 c.m. of liquor associated therewith and the liquor leaving tower No. 1 is heated to 60‹C. in the relay vessel and cooled to 20‹C. before its return to the tower. The periodic time of circulation in this case W is 36 mins., i.e., 61.4- and four towers only QL are necessary with a total liquor volume of 40 c.m.
Patent GB-1016943-A (GB)
Title: Inertial navigator platform
Inventor: NEWMAN HARRY
IPC: G01C21/18
Filed: 1964-02-10
Abstract: 1,016,943. Stabilised platforms. NORTH AMERICAN AVIATION Inc. Feb. 10, 1964, No. 5535/64. Heading G1C. A stable platform comprises a hollow conical stable element 10, a system of gimbals 18, 22 within the element for mounting the element on a base pedestal 27 for pivotal motion about three distinct axes of rotation, a set of gyros on the element 10 and gimbal servomotors responsive to the gyros for stabilizing the element 10. The stabilized element 10 is formed from inner and outer castings 11, 12 joined by stiffeners 9, and includes a support portion 13 formed with a sleeve 14 mounted on a hollow azimuth support shaft 17 for rotation in bearings 15, 16. The shaft 17 is mounted on the inner gimbal 18 and this in turn is supported by an axle 21 for rotation about a pitch axis in the outer gimbal 22. A yoke 26, on a pedestal 27 supports the gimbal 22 in bearings 24, 25 for rotation about a roll axis. The element 10 is formed with shelves 29 for the mounting of gyroscopes as 31, 33 accelerometers and other equipment. Two double-axis gyros or three single axis gyros may be employed. The azimuth gyro controls a direct drive azimuth servomotor 36 by means of a conventional servo-controller. A resolver 39 is also provided on the azimuth axis to resolve the signals from the roll and pitch gyros and to control rotation of the roll and pitch servomotors which are also direct drive motors. The angles registered at the gimbal axes, defining heading, roll and pitch are picked off by synchros as 51, 53. Electrical leads 44 for connection to the various components pass through the hollow shaft 17, by way of a conical bore 19 allowing movement of the gimbals, to a set of slip rings 45, brushes 47 carried by the element 10 completing the connection. In an alternative construction to reduce friction the slip rings are mounted on the pedestal 27 and the brushes are carried by a sleeve concentric with the pedestal and rotated by a servomotor in synchronism with the azimuth rotations of the element 10. Flexible leads then connect the brushes with the stablised element. The system is intended for use an marine vessels and the element 10 may carry a star tracker. The gimbals are preferably of ceramic materials.
Patent GB-945582-A (GB)
Title: Improvements in or relating to engine controls
IPC: F02B37/18
Filed: 1962-02-13
Abstract: 945,582. Regulating. CONTINENTAL MOTORS CORPORATION. Feb. 13, 1962 [Feb. 20, 1961], No. 5564/62. Heading F1B. A device for coordinating the operation of an air induction throttle valve 17, Fig. 5 and a turbo-supercharger waste-gate 19 comprises a support 25 Fig. 1, rotatably mounting an input shaft 29, and output shafts 40, 41 connected to the throttle valve and waste-gate by linkages 35, 50, 47 and 36 ,51, 48, Fig. 2, which transmit rotation of the input shaft individually to each of the output shafts. The supercharger 14 is energized only during a pre-determined range of throttle operation and in dependence on the degree of throttle opening.