baber/WOPTO huggingface dataset:
Patent GB-1212196-A (GB)
Title: Key-operated lever locks
Inventor: OSBORNE RAYMOND BRIAN
IPC: E05B35/12
Filed: 1967-02-27
Abstract: 1,212,196. Locks. CHUBB & SON'S LOCK & SAFE CO. Ltd. 19 Feb., 1968 [27 Feb., 1967], No. 9145/67. Heading E2A. The levers of a key operated lever lock are rotatably mounted on a common pivot member 10 which is engageable with a part (i.e. a pivot stump) of the lock so that the pack so formed can be exchanged for a different pack. The pivot member 10 has one end shaped to engage releasably the base 5 of a holder by which the pack is engaged with the look part, the holder base in use being arranged in a plane parallel to the planes in which the levers are rotatable and from which projects a limb 7 to prevent rotation of the levers. In the construction shown in Fig. 110 the holder has two projecting limbs 7, 8 extending from one surface of the base and extending from the other surface there is a tube 6, the base being apertured in alignment with the bore of the tube. The common pivot member 10 for the levers is a bush and one end portion of the bush enters the hole in the base and the bore of the bush is engaged with a force fit by the end portion of the shank of a plug 13 which extends through the tube 6 with the head 14 engaging the outer end of the tube; the pack is thus held in place on the base and the normal strip springs of the levers engage the limb 8 and hold the levers against the limb 7. When the pack is to be engaged with the pivot stump in the lock casing the existing pack of levers is first removed by sliding them off the pivot stump then the replacement pack in the holder is mounted by sliding the outer end portion of the bush 10 onto the pivot stump and pressing the assembly against the base of the casing which displaces the plug 13 from engagement with the bush 10; the plug 13 can then be removed and with the operator holding down the pack of levers by finger pressure the holder is slid from the pack and the exchange operation is complete. A lock using two such packs of levers 3, 4 as shown in Fig. 1, the two packs being operable by different keys. The lock has a movable rear cover plate 15 for access to the packs, one of the levers 17 of the second pack engaging the cover plate to prevent removal of the plate except when the key of the second pack has been operated to unlock the lock. The cover plate has a hookshaped projection 18 with which the lever 17 engages. The opposite end of the plate has a tongue and groove connector at 19 with the casing of the lock.
Patent GB-1468402-A (GB)
Title: Triarylphosphonium salts
IPC: C07C405/00
Filed: 1974-03-29
Abstract: 1468402 Triarylphosphonium salts F HOFFMANNLA ROCHE & CO AG 29 March 1974 [30 March 1973] Divided out of 1468401 09185/76 Heading C2P The invention comprises triaryl phosphonium salts of the general formula wherein R 1  and R 2  each represent a lower alkyl group, R 3  represents a hydrogen or halogen atom or a lower alkyl, lower alkoxy, lower alkenoxy, nitro, amino, mono(lower alkyl)- amino, di(lower alkyl)amino, lower alkanoylamino or N-heterocyclic group, R 4  represents a lower alkenyl, lower alkoxy, lower alkenoxy, nitro, amino, mono(lower alkyl)amino, di(lower alkyl)amino, lower alkanoylamino or N-heterocyclic group and R 5  represents a hydrogen or halogen atom or a lower alkyl, lower alkenyl, lower alkoxy, lower alkenoxy, nitro, amino, mono(lower alkyl)amino, di(lower alkul)amino, lower alkanoylamino or N-heterocyclic group provided that when R 3  or R 5  is a halogen atom R 4  is other than a lower alkoxy group, m is 0 or 1, X is aryl and Y is the anion of an organic or inorganic acid, the lower alkyl, lower alkenyl, lower alkoxy, lower alkenoxy, and lower alkanoyl groups being defined as those containing up to 6 carbon atoms in each case. The aryl group X includes C 1 -C 6  alkylphenyl and C 1 - C 6  alkoxyphenyl and the preferred anions Y are Cl, Br, I, hydrosulphate and tosyloxy. Specified N-heterocyclic groups are pyrrolidino, piperidino, morpholino and thiamorpholino. The compounds in which m is zero and Y is a halide anion may be obtained by treating a corresponding (R 1 -R 5 )-benzene with formaldehyde in the presence of a hydrohalic acid, e.g. cone. HCI, if desired in a solvent and reacting the resulting (R 1 -R 5 )-benzyl halide with a triaryl phosphine in a solvent. Compounds in which m is 1 and Y is a halide anion can be obtained by reacting a formylating agent with the corresponding (R 1 - R 5 )-benzene, e.g. by reaction with orthoformic acid, formyl chloride or dimethyl formamide in the presence of a Lewis acid, reacting the resulting (R 1 -R 5 )-benzaldehyde with acetone in the presence of alkali to form a 4-(R 1 -R 5 )-phenylbut-3-en-2-one, converting the latter to the corresponding acetylenic alcohol (5-(R 1 -R 5 )- phenyl - 3 - methyl - 3 - hydroxy - penta - 4 - en- 1-yne) by a Grignard reaction with addition of acetylene, partially hydrogenating the acetylenic alcohol to form the corresponding diolefinic alcohol and then converting the latter to a triarylphosphonium salt by treating with a triaryl phosphine in the presence of a hydrohalide, e.g. HCl or HBr, in a solvent, e.g. benzene. The products are useful as intermediates in the production of polyene derivatives having therapeutic properties.
Patent GB-278263-A (GB)
Title: Improvements in spray drying
IPC: A23C1/04
Filed: 1927-04-04
Abstract: 278,263. Industrial Associates, Inc. April 4, 1927. Addition to 272,859. Spray evaporators. -A battery of nebulizers 8 is employed instead of the single nebulizer described in the parent Specification.
Patent GB-1032863-A (GB)
Title: Improvements in or relating to reservoir marking instruments
Inventor: SILVER DEREK JOHN
IPC: B43K5/18
Filed: 1962-03-09
Abstract: 1,032,863. Reservoir marking instrument. MENTMORE MANUFACTURING CO. Ltd. March 7, 1963 [March 9, 1962], No. 9216/62. Heading B6P. The valve body 8 of a reservoir marking instrument with a felt nib 7 is of a non-metallic elastic material such as rubber. The nib is retained in the recessed portion 8c of the body 8 which abuts a stationary cross-member 9 fixed into the barrel 1 of the pen after the valve body and nib have been assembled. An annular valve seat 5 is formed between the larger diameter of the barrel 1 forming the reservoir and the smaller diameter of the passage 6 leading to the writing tip end. Inwardly directed pressure to the nib, Fig. 6, compresses the valve body 8 axially and expands it radially, so that ink flows from the reservoir to the passage 6, where it is absorbed by the felt nib 7. The nib is of square cross-section in a circular passage 6. In a modification, Figs. 7 to 10 (not shown), the felt nib is fitted within a tube formed with apertures near the end adjacent the valve body, the felt nib bulging through these apertures into the space between the tube and the wall of the passage 6. In a further modification, Figs. 11 and 12 (not shown), the felt nib is formed with an axial bore and a rigid element is engaged as a tight sliding fit in the bore. In a final embodiment, Fig. 13 and 14 (not shown), the valve body is of a modified shape and the stationary cross-member 9 is replaced by an angularly bent strip of springy non-corrodible metal which engages the internal wall of the barrel 1 with its transverse edges.
Patent GB-720878-A (GB)
Title: Acrylonitrile and the production thereof
Filed: 1953-04-07
Abstract: A mixture of alkali metal formates liquid at the reaction temperature, i.e. below 250 DEG  C., is used in the dehydration of ethylenecyanhydrin to acrylonitrile.  The process may be continuous and the formation of resinous byproducts is avoided. Sodium, potassium and lithium formates are mentioned.  The catalyst remains active over a longer period if formic acid or ammonium formate is added.
Patent GB-686674-A (GB)
Title: Improvements in or relating to trays
IPC: A47G23/06
Filed: 1949-04-07
Abstract: 686,674. Trays. DUTTON, D. M. Sept. 7, 1950 [April 7, 1949], No. 9458/49. Class 128 A tray on which jig-saw or like puzzles can be constructed and stored undisturbed has a base 1 surrounded by walls and a lid 2 which fits into or over the tray and is secured thereto, e.g. by a screw 3 or turn-catches, to grip the puzzle between the lid and the base. In a modification, Figs. 4 and 5 (not shown), the lid slides endwise in grooved guides on the tray, and resilient members, e.g. springs, are provided between the guides and the lid. The lid may have surrounding walls.
Patent GB-474450-A (GB)
Title: Improvements relating to electromagnetically operated switches for use in motor-vehicle headlight-dipping arrangements
IPC: B60Q1/076
Filed: 1936-03-31
Abstract: 474,450. Electric switches. EVANS, C. J., and EVANS, S. C. March 31, 1936, Nos. 9474 /36, 34534/36, and 5392/37. [Class 38 (v)] [Also in Group XI] In a motor-vehicle lamp, to deflect the light beam, a reflector, refractor, light source, or other movable element is movable by a core 23, Fig. 9, slidably mounted in two solenoids 24, 25 which move it in opposite directions according to which is energized, a pair of switches, e.g. the contacts 28, 31 and the contacts 29, 32, is arranged one in circuit with each of the solenoids, means such as the member 34 are associated with the core so as to actuate the switches to interrupt the current when the core reaches substantially one or other of its extreme positions, and mechanical means prevent the core from being moved out of position by vibration. These mechanical means comprise a spring-pressed ball or plunger 42 engaging in a hole or depression 43, Fig. 5, or a spring blade engaging in a slot on the member 34, and/or holding means located on the reflector. In an alternative form, the two solenoids have each a separate core slidably mounted therein, arranged so as to form the equivalent of the single core 23. In both forms, a spring may assist movement of the core or cores in one direction. In a third form, Figs. 15 and 16, a core 23 is slidably mounted in a solenoid 24 which when energized moves it in one direction, against the action of resilient means, means such as the spring- pressed plunger 58 hold the core in the position to which the solenoid 24 displaces it, a second solenoid 25 when energized operates the plunger 58 or other retaining means to release the core so that it can move under the action of resilient means, and switches operable by the core are arranged as before. In this form, a third solenoid may assist the spring in moving the core. In all forms, further switches may be actuated, when the core or cores are moved, to interrupt the current through the energized solenoid when the core or each core reaches a position between its extreme positions, and to control other circuits, e.g. so as to extinguish or dim other lamps. The reflector or other element of the lamp may be movable to a plurality of positions. The solenoids may be provided at their ends with fixed core-pieces against which the core or cores abut when in their extreme positions. The part 26 of the core that is attached to the reflector mav have a resilient connection to the core itself, e.g. the springs 47, 48, Fig. 7, or rubber or other cushions. The member 34 may be carried between the solenoids, or the latter may be juxtaposed and the member 34 carried at one end of the core on a non-magnetic extension. Specification 459,717 is referred to.
Patent GB-487712-A (GB)
Title: Improvements in photographic objectives
IPC: G02B13/04
Filed: 1937-04-05
Abstract: 487,712. Lenses. ZEISS, C., [Firm of]. April 5, 1937, No. 9545. Convention date, April 9, 1936. [Class .97 (i)] In a photographic objective consisting of two menisci bounded by air, the rear meniscus being convergent, the convex surfaces of the menisci face each other, the focal length of the rear meniscus does not differ from that of the entire system by more than one-third of the latter length, and the ratio of the radii of curvature of the two air-bounded surfaces of the rear meniscus approaches more nearly to unity than does the corresponding ratio for the front meniscus. The rear meniscus is a triplet consisting of a divergent lens cemented between two convergent lenses, the refractive index of the front element being greater than that of the medial element, and still greater than that of the rear element. The front meniscus may also be a cemented triplet, the refractive index of the medial element being less than that of either of the outer elements. An additional element, having nearly the form of a parallel plate, may, as shown, be placed behind the rear meniscus. Data are given for two examples.
Patent GB-351482-A (GB)
Title: Improvements in and relating to apparatus for controlling the movement of a film
IPC: G03B19/18
Filed: 1930-03-25
Abstract: 351,482. Kinematograph apparatus. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. - (Assignees of Allgemeine Elektricitats- Ges.; 2, Friedrich Karl - Ufer, Berlin.) March 25, 1930, No. 9567. Convention date, March 25, 1929. [Class 97 (i).] A film 10 in a lighttight casing 9 drives a roller 4 coupled to an external device 7 for indicating the movements of the film, the roller and indicator being constructed to have a low moment of inertia. The device 7 may comprise a disc on the shaft 6 of the roller, and may carry a black cross 8 on a white ground, or some other mark. The roller may drive a tachometer. Specification 301,730, [Class 97 (i), Optical systems &c.], is referred to.
Patent GB-314829-A (GB)
Title: Improvements in or relating to servo-brake mechanism for motor driven vehicles
IPC: B60T13/24
Filed: 1928-03-30
Abstract: 314,829. Whitehead, A. J. March 30, 1928. Fluid-pressure; covers; hand, foot, and personal actuation; force-transmitting mechanism.-Fluid pressure brake mechanism for motor driven vehicles comprises a vacuum chamber the controlling valve of which is opened by the initial movement of the foot pedal, the influence of the vacuum chamber on the brake mechanism independently of the foot pedal being prevented by frictional coacting members mounted on the lever connected with the servo-motor and the foot pedal respectively. The valve mechanism f of the vacuum diaphragm chamber a is controlled by a floating pinion 8<a> moved by rotation of a pinion 5a on the foot operated spindle, relative to a pinion 6<a> on the spindle 2<a> connected to the brake mechanism. The spindle 2 carries a lever r having a V-groove s with which frictionally contacts a shoe t carried in the open end of the vacuum chamber lever c pivoted at u and acts as a stop to prevent the vacuum chamber influencing the brake mechanism independently of the direct action of the foot pedal. Movement of the lever r by further movement of the foot pedal permits a corresponding movement of the lever c. The direct action of the foot pedal and that of the vacuum chamber is transmitted to the brake mechanism by a floating link y having a ball joint connection at either end to the lever c and the lever r and adjustably connected to a push rod v and a lever w on the spindle 2<a>. An abutment z on the lever r engages the push rod v if the vacuum chamber becomes inoperative so that the foot operation produces the whole of the braking effect. The foot-operated lever 3 and the pinion 5<a> are mounted on a sleeve on the spindle 2 and the pinion 5a has a dog-clutch connection with the lever r so as to allow sufficient lost motion to permit operation of the control valve f by the pinion 8<a>, a link 8, a bell-crank lever 9, a link p and a push rod m. The control valve comprises inlet and exhaust valves n, n' respectively co-operating with seats carrying guides for the hollow valve spindles through which passes the valve spindle m, reciprocatory movement of which separates the valves independently from their seats. The valves are separated by a rubber cushion o or a spring. Levers 5, 6 are mounted on the spindles 2, 2<a> and are connected by a spring 7. The mechanism is contained in a casing e, which is an extension of the chamber a. Specification 297,373 is referred to.
Patent GB-949779-A (GB)
Title: Improved woven wire belt for a fourdrinier machine
IPC: D21F1/10
Filed: 1960-03-18
Abstract: Wires (used to weave belts for Fourdrinier machines) have coatings thereon of a solid, water-insoluble, film-forming material adding to the wire diameter 0,0005 inch nominal.  The wires may be of brass, bronze, aluminium, steel or stainless steel.  The coating may be of nylon 66, polyurethane, linear or branched polyethylene, crystalline polypropylene, polytetrafluorethylene, vinyl chloride polymer, vinyl chloride-vinyl acetate copolymers, melanine-formaldehyde, butylated melamine-formaldehyde, urea-formaldehyde or phenol-formaldehyde resin.  It may be deposited from solutions, e.g. in the case of polyamides or polyurethanes, or from aqueous emulsions, e.g. in the case of polyethylene, polypropylene or polytetrafluorethylene, or as a plastisol or organosol.  The wire may be passed through a bath of lacquer, through sizing dies, and then to a curing oven.  A multi-coating process may be used. U.S.A. Specification 2,496,052 is referred to.ALSO:A woven wire belt for a Fourdrinier machine comprises wires having thereon a thin coating of a solid, water-insoluble, film-forming material.  The warp wires have a diameter within the range from 0. 007 inch to 0. 0105 inch, and the weft wires within the range from 0. 008 inch to 0. 012 inch.  The coating has a thickness of 0. 0005 inch nominal with a tolerance of from \sB0. 001 inch for wires of the smallest diameter in each range to \sB0. 0002 inch for wires of the largest diameter in each range. The wires may be coated before weaving and may be of brass, bronze, aluminium, steel or stainless steel, and warp and weft may be of different metals.  The coating may be of thermoplastic or thermosetting synthetic resin, examples of both are given in the Specification.  The coating may be on the warp wires only, the weft wires only or both warp and weft wires.  It increases the weavability of the wires, and their resistance to corrosion in service.  The wires may be woven twill.  The ends of the belt may be seamed together by brazing, and the belt mounted on rollers to pass over a suction box.  U.S.A. Specification 2,496,052 is referred to.
Patent GB-1574866-A (GB)
Title: Electronic timepiece
IPC: G04G5/00
Filed: 1977-03-08
Abstract: An electronic timepiece correction circuit for a digital display electronic timepiece wherein the same digital display is utilized with timekeeping circuitry capable of producing two types of time information to display both types of time information is provided. Mode select circuitry that is coordinately disposable between a timekeeping mode and a correction mode is disposed intermediate a manually actuatable control circuit and the timekeeping circuitry and digital display. When the mode select circuitry is disposed in a timekeeping mode, actuation of the control circuitry will result in the digital display changing from a display of the first type of time information to a display of the second type of time information produced by the timekeeping circuitry. However, when the mode select circuitry is in a correction mode, the mode select circuitry will select the particular timekeeping circuitry to be corrected, and if the timekeeping circuitry to be corrected is producing the second type of time information, the mode select circuitry will change over the digital display from the display of the first type of time information to the second type of time information.
Patent GB-1177163-A (GB)
Title: Process for the Continuous Production of Aqueous Ammonium Thiosulphate Solutions
Inventor: MACK ERNST
IPC: C01B17/64
Filed: 1967-03-01
Abstract: 1,177,163. Ammonium thiosulphate. TH. GOLDSCHMIDT A.G. 1 March, 1967 [5 March, 1966], No. 9753/67. Heading C1A. Ammonium thiosulphate is produced continuously by reacting an aqueous ammonium bisulphite solution with gaseous or aqueous NH3 and sulphur, and passing the solution so formed through a bed of sulphur, H2S being introduced in the first stage in amounts of not more than 0À1% by wt. to produce (NH4)2S which accelerates the reaction. The first stage may be operated at a temp. of 20-50 C. and pH of 8À8-9À2, using equimolar amounts of reactants. The bisulphite solution may contain minor amounts of ammonium sulphite. The sulphur bed, which also serves as a filter, may contain grains of sulphur 0À1-1À5 mm. in size, which may be deposited on a sieve with meshes 2 mm. in diameter. Two beds may be used, which operate alternately. The final solution may be decolorized by adding ammonium bisulphite, and may contain 60À6% thiosulphate.
Patent GB-1023994-A (GB)
Title: Improvements in or relating to automatic cigarette manufacturing machines
IPC: A24C5/39
Filed: 1963-03-12
Abstract: 1,023,994. Cigarette-making machines. AMERICAN MACHINE & FOUNDRY CO. March 12, 1963 [March 12, 1962], No. 9764/63. Heading A2C. Tobacco is detached from a drum 1 by a roller 7 and fed to a blower drum 9 which blows it towards a suction drum 12, heavy unwanted particles falling through a tube 15 into a hopper 16. The wanted tobacco is detached from the drum 12 and thrown on to a conveyer 21 by a wheel 17 for conveyance to a rod forming mechanism 19. The drum 9 is provided with a shutter 10 and an arcuate air directing element 14. Suction is applied to the drum 12 through a shield 13 and duct 25.
Patent GB-981485-A (GB)
Title: Improvements in and relating to electric switches
Inventor: DEVERILL STANLEY ALBERT WILLIA
IPC: H01H23/14
Filed: 1962-03-14
Abstract: 981,485. Snap-action switches. N.S.F. Ltd. March 14, 1963 [March 14, 1962], No. 9784/62. Heading H2B. The operating lever 21 of a snap-action electric switch has pivot members 22 which engage recesses in the housing 16 forming the mounting bush of the switch. The lever 21 is inserted in the housing by passing members 22 through unobstructed portions 30 in the housing and twisting the lever through 90 degrees so that members 22 engage their recesses and the lever is held in position by a spring 25 in the body of the switch. A retaining plate 33 may also be used to keep the lever 21 in position.
Patent GB-622810-A (GB)
Title: Face milling cutters
IPC: B23C5/22
Filed: 1947-04-14
Abstract: 622,810. Milling-cutters. HERBERT, Ltd., A., and LLOYD, A. H. April 14, 1947, No. 9840. [Class 83 (iii)] In a face milling-cutter of the kind having inserted teeth 11 secured in slots in the cutter body by clamping screws 13, each tooth is provided with two screws 12 which engage the bottom of the associated slot and serve for adjusting the tooth whilst the latter is lightly held by the clamping screws. One of the screws 12 may be replaced by a fixed abutment.
Patent GB-786709-A (GB)
Title: Improvements relating to occasional furniture
Inventor: LIBSON LOUIS
IPC: A47B3/02
Filed: 1956-03-29
Abstract: 786,709. Furniture stands. GAINSBOROUGH TABLE CO., Ltd. March 29, 1956, No. 9850/56. Class 52(3) A stand for storing folding chairs, tables or the like 2 consists of side members 3, cross bars 5, a handle 7 carried on uprights 6 and parts on the inside faces of the side members formed with slots 8 shaped to correspond with the chamfered lower ends of the furniture frames, two frames being accommodated in vertical position between the uprights 6 and the inner bars 5 and one between each pair of bars 5.