baber/WOPTO huggingface dataset:
Patent GB-812399-A (GB)
Title: Improvements in plugs for electric couplings
Inventor: SADLER ALFRED
IPC: H01R13/42
Filed: 1956-08-10
Abstract: 812,399. Two-part couplings. BRITISH GENERAL MANUFACTURING CO. (1941) Ltd. July 23, 1957 [Aug. 10, 1956], No. 24536/56. Class 38 (1). A plug pin 1 is provided with a pin 4 the ends of which engage in recesses in the plug base 5 to prevent withdrawal and rotation of the pin a boss 13 on the cover 6 engaging the end of the pin. One or both ends of the pin may alternatively be bent downwards to engage a hole or holes in the base. Alternatively, the pins may be accommodated in relatively shallow slots in the base, the slots being closed by the cover.
Patent GB-1066411-A (GB)
Title: Improvements in or relating to circuit arrangements for use in testing electrical circuit elements
IPC: G01R31/02
Filed: 1965-06-10
Abstract: 1,066,411. Electric test arrangements. PIRELLI S.p A. June 10, 1965 [July 31, 1964], No. 24565/65- Heading G1U. An arrangement for use in testing an electric circuit element such as a cable 14 by reversing the polarity of a direct voltage applied to it comprises a high potential direct voltage generator 1 and a capacitor 5 connected in parallel therewith, connected to the cable through a resistor 6, the capacitor having a high capacitance (e. g. 100 times greater) relative to that of the cable. A switch 17, 18 enables the test voltage applied to the cable to be rapidly reversed, either the inner connector of the cable being at high potential and the outer earthed, or vice-versa. Switches 20, 21 and damping resistors 22, 23 may be included in the earthing leads, the switches being opened before a changeover to prevent flash over at the reversing switch contacts. The arrangement shown in Fig. 2 is suitable for testing cables where the whole cable can be insulated from earth, as by suspending it by ropes of insulating material. An arrangement for reversing the polarity of the supply to a cable whose outer conductor remains earthed comprises a pair of capacitors which may alternatively be switched across the source 1 and alternatively connected to the cable core 16 Figs. 5 and 6 (not shown), the source polarity being reversible. The capacitances connected across the supply effectively act in all examples as constant voltage sources.
Patent GB-534156-A (GB)
Title: An improved tooth-brush
IPC: A46B7/04
Filed: 1939-08-28
Abstract: 534,156. Toothbrushes. PANDIYAN, A. J. Aug. 28, 1939, No. 24693. [A Specification was laid open to inspection under Sect. 91 of the Acts. March 15, 1940.] [Classes 19 and 61 (i)] A tooth brush is provided with a detachable bristle tuft which may be a sliding or tapering fit as in Figs. 1, 2, 10 or a threaded or bayonet attachment. In another modification, this tift is held in a split handle A as in Fig. 9. The bristle tuft may consist of fibrous wood treated at one end to form bristles and at the other left solid to fit into the handle. Fibrous woods such as palms, bamboo, margosa, acacia arabica, banyan and pandanus are mentioned as suitable. Ordinary bristles may be used having one end dipped into a setting agent such as rubber, sealing wax, natural or artificial resin or celluloid. In the case of rubber an electric current may be passed through a solution to make rubber particles stick to the bottom end of the bristles. Bristles formed from wood may be enclosed in a cap of rubber, celluloid, artificial resin or metal to prevent change in size due to climatic change. Reference has been directed by the Comptroller to Specifications 25798/02 and 22213/13, [both in Class 19].
Patent GB-753805-A (GB)
Title: Process for the preparation of 3-substituted-4-hydroxycoumarins
Inventor: STARR DONALD FAY
IPC: C07D311/46
Filed: 1954-08-25
Abstract: 3 - Substituted - 4 - hydroxycoumarins are prepared by heating a lower alkyl ester (containing not more than eight carbon atoms in the ester grouping) of 3-carboxy-4-hydroxycoumarin with an a  : b -unsaturated ketone dispersed in water in the presence of ammonia or an organic amine.  In examples: (1) 3-carbethoxy - 4 - hydroxycoumarin, benzalacetone and triethylamine are refluxed in water while a heavy precipitate separates, which is treated with benzene, then dissolved in sodium hydroxide solution, and 3-(a -phenyl-b  - acetylethyl) - 4 - hydroxycoumarin reprecipitated with hydrochloric acid; similar experiments are tabulated, using different concentrations of triethylamine, also tributylamine, aniline, and piperidine as the catalyst; (2) 3 - carbethoxy - 4 - hydroxycoumarin, benzalacetophenone and triethylamine are refluxed in water to yield 3-(11-phenyl-21-benzoylethyl)-4-hydroxycoumarin; (3) as in (2), using anisal acetone, the product is 3-(11-anisyl-21-acetyl - ethyl) - 4 - hydroxycoumarin; (4) as in (2), using p-chlorobenzal acetone to give 3-(11 - p - chlorphenyl - 21 - acetyl - ethyl) - 4-hydroxycoumarin. Reference is made to the use of methyl, propyl, butyl and octyl esters of 3-carboxy-4-hydroxycoumarin.  Lower alkyl esters of 3-carboxy-4-hydroxycoumarin are prepared from acetyl salicoyl chloride and the appropriate alkyl ester of sodio malonic acid. U.S.A. Specification 2,427,578 is referred to.
Patent GB-1150772-A (GB)
Title: Method of Preparing a Composition of Matter for the Treatment of Neoplasms
IPC: A61K35/13
Filed: 1966-06-02
Abstract: 1,150,772. Antineoplastic material. DSO "PHARMACHIM". 2 June, 1966 [2 June, 1965], No. 24724/66. Heading A5B. A material suitable for the treatment of neoplasms is obtained from neoplastic material of the same type by a process comprising the following sequence of steps: i) homogenising the neoplastic tissue ii) separating the cell nucleii therefrom by centrifuging iii) digesting the nucleii with pepsin iv) centrifuging the digest v) digesting the sediment from step iv with trypsin vi) separating the sediment (the active material) by centrifuging. The active material may be administered intravenously, suspended in a blood substitute.
Patent GB-1262942-A (GB)
Title: Transalkylation process
Inventor: POLLITZER ERNEST LEO
IPC: C07C67/00
Filed: 1969-05-15
Abstract: 1,262,942. Transalkylation. UNIVERSAL OIL PRODUCTS CO. 15 May, 1969 [16 May, 1968], No. 24768/69. Heading C5E. A transalkylation process comprises contacting an alkyl aromatic -hydrocarbon at 200- 480‹ C. and at a pressure of from atmospheric to 100 atmospheres with a catalyst comprising an acid extracted crystalline aluminosilicate. Examples describe the use of catalysts to convert (1) toluene to benzene (2) toluene and trimethylbenzene to xylenes (3) di- and tri-ethylbenzenes to benzene and (4) the various products up to C 16-18  which are produced after prolonged reaction of ethylbenzene.
Patent GB-262582-A (GB)
Title: Improvements relating to machines for applying adhesives to the flaps of packets andfor like purposes
IPC: B65B51/02
Filed: 1925-10-05
Abstract: 262,582. Berkshire Printing Co., Ltd., Brooke, N., and Ballard, R. Oct. 5, 1925. Coating-machines.-In devices for applying adhesive to the flaps of packets &c., gum is raised by a central screw to the upper horizontal or conical surface of a rotary applying disc, a wiper distributing the gum over the disc surface. A disc a, Fig. 1, having a flat or slightly conical upper surface b with a central recess c carries a sleeve d enclosing a stationary screw e. By rotation of the disc and sleeve, adhesive is raised from the bath k to the central recess c. A wiper p (see also Fig. 5) having a concave or bevelled lower edge, distributes the adhesive over the disc surface, surplus adhesive dropping back into the bath through a hole q. When the device is used for securing packet flaps. the packets are caused to move around the inside of a circular guide z. For this purpose a revolving carrier is employed, this carrier comprising top and bottom plates u on which are pivoted finger pieces v controlled by springs wand actuated by levers x in contact with a fixed cam y. The fingers v swing into operative position and push the packets in succession towards the disc a. Each packet during its progress contacts with an end 4 of a lever 5 pivoted at 6 which causes a jointed lever 7 to swing sideways, and a roller 8, carried on the lever 7, to press the flap on to the gumming disc a. When free of the disc and roller, the flap is held down on the packet by any convenient means such as a resilient plate, roller, or brush (not shown), under which the packet passes in its continued movement. The mechanism is adapted for use with tea-packing machines.
Patent GB-518498-A (GB)
Title: Stand primarily for music
IPC: A47B19/00
Filed: 1938-08-23
Abstract: 518,498. Music holders; cake stands &c. WATTS, W. S. Aug. - 23, 1938, No. 24808. [Class 52 (iii)] Relates to a stand mainly for storing sheets of music, gramophone records or music rolls, and adaptable also for use as a cake stand or music rest comprises a series of boxlike pivoted shelves 5 open at one end 7 and interconnected by a link 10 so that the box-like shelves may be moved simultaneously from the horizontal position shown in full lines to a vertical position where the bottom of one shelf provides a closure for the open end of the shelf below: A cross bar 1 closes the mouth of the top shelf when in the vertical position. The. shelves may be set in an intermediate position, shown by broken lines, and retained therein by a slotted link 12, the upper shelf being provided with a ledge 16 and fingers 17 for holding music.
Patent GB-615726-A (GB)
Title: Improvements in and relating to servo steering mechanisms for motor vehicles
IPC: F15B9/08
Filed: 1945-09-25
Abstract: 615,726. Fluid - pressure servo motor-control systems. BAGHUIS, L. H. Sept. 25, 1945, No. 24889. Convention date, Jan. 20, 1944. Addition to 608,236. [Class 135] In a servo-mechanism according to the parent Specification, the servo - piston 2 is connected to a further valve 48 which closes the exhaust ports 22 when the screw spindle 5 and the piston are in neutral position, i.e. the position they would occupy when the vehicle is running straight. Valve 48 is connected to the piston-rod by a rod 49 running through the exhaust bore in spindle 5. In the neutral position shown, closing of the exhaust ports prevents loss of power due to pressure fluid circulating direct to exhaust.
Patent GB-599518-A (GB)
Title: Improvements in or relating to voltage multiplying system
IPC: H02M3/42
Filed: 1945-09-26
Abstract: 599,518. Condenser arrangements. STEVENS, A. H. (Electronic Laboratories, Inc.). Sept. 26, 1945, No. 24933. [Class 38 (iv)] A voltage doubler comprises two vibratory members 2, 3 energized by the same driving magnet 9, the circuit to which is periodically interrupted at driving contact 10 co-operating with member 3. When the two vibrators 2, 3 engage contacts 4, 6, capacitor 8 is charged from battery 1 ; and when they engage contacts 5, 7, the charged capacitor 8 is connected in series with battery 1 to connect double the battery voltage across the load.
Patent GB-804749-A (GB)
Title: Water soluble thermoplastic cellulose ether compositions
Inventor: WINDOVER FRANCIS EUGENE
IPC: C08K5/06
Filed: 1957-08-07
Abstract: A thermoplastic composition comprises (1) 2-90 per cent by weight of a water-soluble, thermoplastic hydroxyalkyl alkyl cellulose ether in which the hydroxyalkyl group contains 2 or 3 carbon atoms and the alkyl group has 1-3 carbon atoms and which has a melting point which is at least 10 DEG  C. below the decomposition temperature; and (2) 98-10 per cent by weight of a plasticizer comprising a glycerol mono-2-hydroxyalkyl ether, glycerol bis-(2-hydroxyalkyl) ether or glycerol tris-(2-hydroxyalkyl) ether wherein each 2-hydroxyalkyl group contains 2 or 3 carbon atoms.  Specified cellulose ethers are methyl hydroxyethyl and methyl hydroxypropyl cellulose ethers, in the preparation of which methyl chloride and ethylene oxide or propylene oxide may be added simultaneously to alkali cellulose below 40 DEG C. and reacted at 60 DEG  C.  Specified plasticizers are glycerol mono, bis and tris (2-hydroxypropyl) ethers and the corresponding 2-hydroxyethyl ethers.  Examples are given.ALSO:Tris-(2-hydroxypropyl) glycerol ether is prepared by placing 1 molar part of glycerol and 3 molar parts of propylene oxide in a pressure vessel, together with 0.3 per cent sodium hydroxide as a 50 per cent aqueous solution, and heating the vessel to about 100 DEG  C. to cause the reaction to proceed before cooling externally to assure constant pressure.  Completion of the reaction is indicated by a pressure drop to a constant minimum value.
Patent GB-449848-A (GB)
Title: Improvements relating to lidded boxes or receptacles
IPC: B65D43/24
Filed: 1935-09-07
Abstract: 449,848. Inking-pads. HORNEMANN, A., 9, Oxford Street, London. Sept. 7, 1935, No. 24990. [Class 100 (ii)] [See also Group XVII] The lid of a box holding an inking-pad for a hand-stamp is held closed by the engagement of a projection 6 on the front wall of the container portion 1 with an aperture 14 in the front flange of the lid 8, and the extent to which the lid can be closed is limited by projections 7, Fig. 2, or a cambered extension 16, Fig. 5, to the front wall of the box. On depressing the lid at one of its front corners or extreme ends, it rocks slightly about a stop 7 or the surface 16 and causes the aperture 14 to become disengaged from the projection 6. The lid then flies open under the action of springs mounted on the hinge pin.
Patent GB-484774-A (GB)
Title: Improvements in or relating to navigation aiding radio receivers
IPC: G01S1/02
Filed: 1937-09-14
Abstract: 484,774. Directive wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Sept. 14, 1937, No. 25018. Convention date, Sept. 14, 1936. [Class 40 (v)] Relates to a " homing " system in which the phase of the voltage received on a frame aerial is continually reversed so that a directcurrent component dependent upon the orientation of the frame is applied to an indicating instrument. According to the invention, automatic volume control is applied in order to keep the effective sensitivity or angle over which the " minimum " signal is received at a constant value, irrespective of the distance of the craft from the beacon. As shown in the drawing, a change-over switch g alternately makes one or other of the valves V1, V2 feed pick-up voltage from the frame aerial a to a receiver b coupled to an indicator e. The rectified output current is fed back through a smoothing network, including a variable resistance f, to apply gain-control bias to whichever of the valves V1, V2 is operative. The variable resistance f provides a supplementary manual control.
Patent GB-997044-A (GB)
Title: Proces for the upgrading of a bis-triazinylamino stilbene derivative
Filed: 1963-06-24
Abstract: The invention comprises compounds of the general formula <FORM:0997044/C2/1> in the b -form (as described below), wherein Y is a sodium, calcium, ammonium, tert-octylammonium, di-n-propylammonium or tri-n-propylammonium ion.  Compounds of the above general formula wherein Y is any cation, such as a cation of an alkali or alkaline earth metal or an ammonium cation derived from ammonia or a primary, secondary or tertiary amine, are obtained in the b -form by subjecting a compound of the above general formula in the conventional, a -form, in a closed vessel to a temperature between 100 DEG  and 200 DEG  C. and a pressure between 5 and 225 p.s.i.g. in the presence of an alkaline material, in aqueous medium.  The treatment may be conducted in the presence, as additive, of a polyalcohol, hydroxyether or amine.  The a -form of the above compounds is the product obtained when the compounds are prepared by conventional procedures, whilst the b -form is the product resulting from the above heat-pressure treatment and has a crystalline form which is distinct from that of the a -form.  The a -form of the above compounds in which Y is sodium may be prepared by first reacting 2 mols. of cyanuric chloride with a mol. of 4,41-diaminostilbene-2,21-disulphonic acid, then reacting the condensation product with 4 mols. of aniline and finally neutralizing the reaction product with sodium hydroxide.  Examples are given.ALSO:Soap, detergents and rug and upholstery shampoos may contain, as optical brightening agents, compounds of the general formula <FORM:0997044/C4-C5/1> wherein Y is cation, the compounds being in the b -form.  The b -form is the product obtained when compounds of the above general formula in the conventional, a -form, are subjected in a closed vessel to a temperature between 100 DEG and 200 DEG  C. and a pressure between 5 and 225 p.s.i.g. in the presence of an alkaline material, in aqueous medium (see Division C2).
Patent GB-204874-A (GB)
Title: Improvements connected with bearing supports for weighbridge levers
IPC: G01G21/08
Filed: 1922-09-16
Abstract: 204,874. Avery, Ltd., W. & T., and Sykes, C. M. Sept. 16, 1922. Bearings.-A rocker bearing for weigh-bridge levers is of substantially U-shape in elevation, the bearing 10 for the end knife-edge of the lever being located in the curved base 6 of the U and the side pivotal supports 7 for the rocker being mounted upon integral lateral entensions 6<a>, one on each side of the U. The rocker is strengthened by a plate 12 which fills in one side of the U and forms a pocket for the reception of the end of the lever.
Patent GB-673875-A (GB)
Title: Improvements relating to tubular angled joints for use in bedsteads and the like
IPC: A47C19/02
Filed: 1949-09-30
Abstract: 673,875. Brazed joints. WHITFIELDS BEDSTEADS, Ltd., and BICK, H. Sept. 11, 1950 [Sept. 30, 1949], No. 25103/49. Class 83 (iv). In a joint for bedsteads and tubular furniture the small end of an independent sheet metal truncated collar c with a curved or conical wall is placed over one tube a and the larger curved end c<SP>1</SP> of the collar c laterally engages a transverse tube b abutting the one tube a, to snugly fit but not surround it and leaves a triangulated section cavity for brazing metal, the one tube a merging gradually into the outer wall of the other tube b. Copper brazing is employed.
Patent GB-1189855-A (GB)
Title: Compartmented Package
Inventor: POITRAS EDWARD J
IPC: B65D81/32
Filed: 1967-05-31
Abstract: 1,189,855. Diffuser or mixing packages. E. J. POITRAS. 31 May, 1967 [31 May, 19661, No. 25120/67. Heading B8C. A package comprises a flexible storage container and a dispensing container, the storage container being at least partially enclosed by the dispensing container and having a notch in the enclosed portion so as to be frangible whereby its contents are poured into the dispensing container either for diffusion through the walls of the latter or for mixing with another material prior to discharge. The package may be used to diffuse insecticides or to mix epoxy resins, resins and fillers, colours &c. Agents for producing a warm shaving lather may be so packaged. In one embodiment, sealed storage container 13 is enclosed within an outer bag 12 of more resilient material, there being no free space between the inner walls of the bag 12 and the container 13. The latter has a tear notch 24 in its seal and attached tabs 23 which may be gripped through the walls of the bag 12 and pulled apart. The extra resilience of the outer container permits tearing open of the inner, the contents of which flows out for diffusion through the material of the outer container. A slit 19 permits hanging from a support. In another form, the container 13 is enclosed only at its lower end which is forked and notched at 32, 33 for opening. A number of storage containers, e.g. of different sizes, may be enclosed in one dispensing container, Fig. 6 (not shown), for opening selectively to produce a desired mix with an ingredient in the latter.
Patent GB-601479-A (GB)
Title: Improved process for the production of plasticised rubber-like polymers
IPC: C08K5/37
Filed: 1945-09-27
Abstract: Low-temperature copolymers of isoolefines with polyolefines having 4-14 carbon atoms, having an average molar weight between 25,000 and 200,000 are plasticised by milling between 200 DEG  and 350 DEG  F. in the presence of up to 10 per cent by weight of an alkyl mercaptan. Preferably, the mercaptan has a boiling point above 300 DEG  F. and between 6 and 64 carbon atoms, specified are methyl, diisobutyl, triisobutyl, lauryl and tert.-octyl mercaptans and C16 and C18 mercaptans derived from alcohols prepared by hydrogenation of tallow, fats and oils.  Isobutylene is the preferred isoolefine, polyolefines listed include butadiene, isoprene, piperylene, dimethallyl, dimethylbutadiene and myrcene. Preferably, the copolymer is prepared from a major proportion of isobutylene.  The process may be carried out by a batch or a continuous method in which the copolymer is plasticised whilst passing successively through extruding and milling zones.  If desired, the mercaptan may be added in solution in a hydrocarbon solvent of boiling point 325-375 DEG  F.  The product may be compounded, e.g. with stearic acid, zinc oxide, carbon black, sulphur and tetramethyl thiuram disulphide and cured.ALSO:Rubber-like low-temperature copolymers of iso-olefines with polyolefines having 4-14 carbon atoms (see Group IV(a)) are plasticised by milling between 200 degrees and 350 degrees F. in the presence of up to 10 per cent of an alkyl mercaptan. Preferably the mercaptan has a b.p. above 300 degrees F. and between 6 and 14 carbon atoms, specified are methyl, diisobutyl, triisobutyl, lauryl and tert. octyl mercaptans and C10 and C18 mercaptans derived from alcohols prepared by hydrogenation of tallow, fats and oils.  Isobutylene is the preferred isoolefine, polyolefines listed include butadiene, isoprene, piperylene, dimethallyl, dimethyl butadiene and myrcene.  Preferably, the copolymer is prepared from a major proportion of isobutylene. The process may be carried out by a batch or a continuous method in which the copolymer is plasticised whilst passing successively through extruding and milling zones.  If desired the mercaptan may be added in solution in a hydrocarbon solvent of b.p. 325-375 degrees F. The product may be compounded e.g. with stearic acid, zinc oxide, carbon black, sulphur and tetramethyl thiuram disulphide, and cured.
Patent GB-237467-A (GB)
Title: An improved pendant for supporting light bowls such as are used beneath electric lights and the like
IPC: F21V3/00
Filed: 1924-10-23
Abstract: 237,467. Scorer, R. I. Oct. 23, 1924. Globe holders.-In a globe holder in which an electric lamp holder c or the like carries a central ring or body member a on which are pivotally mounted three or more radiating arms b having hooked ends b<1> for engaging the flange d<1> of a globe d, the member a is in the form of a flat or shallow dome-shaped metal disc and is provided with a rolled or beaded edge a' having slots a<3> across which extends hinge pins or an annular wire a<2> upon which are hooked the looped ends b<2> of strip-metal arms b, the hooked ends b<1> of which are ornamented by means of stampings b<3>. The usual screws or like fastenings may be used to assist the action of the weight of the globe in holding the hooked ends b<1> in engagement with the flange d<1>.