baber/WOPTO huggingface dataset:
Patent GB-1515749-A (GB)
Title: Manually operable circuit interrupter with automatic current overload protection
IPC: H01H73/04
Filed: 1975-09-29
Abstract: 1515749 Overload release mechanisms WESTINGHOUSE ELECTRIC CORP 29 Sept 1975 [9 Oct 1974] 39744/75 Heading H1N A manually operable multi-pole switch 9 associated with a thermal overload tripping device 11 has a contact-opening mechanism comprising a releasable arm 25 latched in an opening in a pivoted L-shaped latch lever 37 which is itself latched in an opening in a pivoted latch retainer lever 39, the latter being biased by a spring towards the latching position and engaged at its lower end by a trip-plate 55 Operation of the trip device moves trip-plate 55 to the left and consequently rotates lever 39 clockwise about pivot 45, thus releasing latch lever 37 for anti-clockwise rotation about its pivot 41 under the action of releasable arm 25 which is urged in a clockwise direction about its pivot 27 by a spring-loaded toggle mechanism 23 which opens the contacts. The latch lever 39 then comes to rest against a bent over portion 69 on the latch retainer lever 39, in which position a projection 63 bent out from the opening 43 is in a position whereby it can be engaged by the roller 59 on the end of the releasable arm for relatehing.
Patent GB-1311588-A (GB)
Title: Camera shutter mechanism
IPC: G03B9/58
Filed: 1971-08-25
Abstract: 1311588 Shutter release mechanism ERNST LEITZ GmbH 25 Aug 1971 [30 Sept 1970] 39874/71 Heading G2A A shutter release mechanism for a camera 1 having either a photo-resistor 3 of an exposure meter or a reflex mirror positionable in the taking light path to the shutter and which must be removed prior to shutter actuation, comprises a release rod 14 coupled via a catch lever 9 to a locking lever 6 and a photo-resistor arm 3a. Depression of button 15 and rod 14 causes rotation of lever 9 which removes a projection 6b from behind the lever 9 so allowing a spring 5 to pivot the photo-resistor out of the optical path and to push lever 6 to the right by means of pin 3b. Motion of pin 3b pushes another pin 9a integral with lever 9 to further rotate lever 9 and pull release rod 14 even further down to actuate a shutter roller element 11 via a lever 12. After exposure a film transport and shutter cocking lever 17 may be actuated to reposition the photosensitive resistor in the light path by movement of an element 16, once to and fro, which causes movement of locking lever 6 to reset the mechanism.
Patent GB-843154-A (GB)
Title: A process for producing articles of synthetic resin-bonded fibrous glass and articles produced thereby
IPC: B29C53/02
Filed: 1957-12-23
Abstract: 843,154. Moulding fibre-resin articles. OWENS-CORNING FIBERGLAS CORPORATION. Dec. 23, 1957 [Dec. 31, 1956], No. 39898/57. Class 87(2). [Also in Groups VIII, XIV, XXI and XXXII] A process for producing porous articles e.g. stools, panels, life belts and crash pads for cars, comprises placing in a mould 6 a mass 4 of synthetic-resin-bonded glass fibres, compressing the mass so that one part thereof is compressed to a density greater then 20 lbs. per cubic foot and greater then that of the remaining part, and heating or cooling the mould to rigidify, the synthetic resin and set the fibres. In a modification, Fig. 11, the mould has sliding members 44 to compress the material at the edges. A cushioned stool is moulded in a flat form in a mould 66, Fig. 14, and then reheated and bent over dies 78, Fig. 16. The resin may be phenol or melasnine formaldehyde, epoxy, polyester or polystyrene. When a thermoplastic resin is used the mass or the mould may be preheated.
Patent GB-1123633-A (GB)
Title: Improvements relating to printing presses
IPC: B41F31/20
Filed: 1965-09-20
Abstract: 1,123,633. Printing apparatus. C. M. CHAMPION and M. A. ORDELHEIDE. 20 Sept., 1965 [18 Sept., 1964], No. 39991/65. Heading B6C. An ink separator for removing ink between adjoining peripheral sections of an ink roller 10 in a printing press for ensuring that ultimate printed impressions corresponding to these sections will be clearly segregated comprises a scraper head 20 incorporating a pair of diverging polytetrafluorethylene blades 26, 28. The head is resiliently and adjustably mounted on a bar 16 which extends between the side walls of the press frame. In order to dispose of ink that may drip from the upper to the lower blade a block 70 having downwardly inclined passages 72 is mounted on the upper surface of the lower blade.
Patent GB-1155845-A (GB)
Title: Improvements in or relating to Hydraulic Ram Systems
Inventor: HOVERD RONALD ERIC
IPC: B66F9/06
Filed: 1965-09-20
Abstract: 1,155,845. Vehicle loading platforms. BURTONWOOD MECHANICAL HANDLING CO. Ltd. 19 Sept., 1966 [20 Sept., 1965], No. 40023/65. Heading B8E. [Also in Division F1] A vehicle lifting platform 35, Fig. 2, is hinged to the lower ends of a pair of spaced vertical slides 38 (only one of which is shown), each connected at its upper end by a chain passing over a sprocket wheel 40, Fig. 3, carried by an hydraulic ram (see Division F 1) to a bracket fixed to a ram guide 37. The assembly so formed is mounted on an angle plate 31 bolted to the rear of the vehicle and the whole forms a detachable unit.
Patent GB-1136280-A (GB)
Title: Internally stressed bolt
Inventor: LAWSON WILLIAM MILLAR
IPC: F16B31/04
Filed: 1966-09-07
Abstract: 1,136,280. Bolting. P & O RESEARCH & DEVELOPMENT CO. Ltd. 29 Aug., 1967 [7 Sept., 1966], No. 40042/66. Heading F2H. A bolt comprises a shank 1 having an axial bore 5 in which a steel &c. rod 10 is fitted with clearance and a piston 11 in pressure transmitting engagement with the rod, means being provided for applying pressure to the piston to move the rod into engagement with the end 6 of the bore to tension the bolt. The bolt is initially tensioned by tightening screws 14 in a plug 9 screwed in the head 4 of the bolt. The pressure is transmitted to the piston via a mass 13 of material such as rubber, synthetic plastics &c. The movement of the piston causes the rod to elongate the shank which is then inserted in members 19, 38 to be clamped and a nut 3 screwed on to the end of the bolt. The screws 14 are then slackened to release the tension on the shank. In modifications, the piston is formed integrally with the rod and the pressure is applied to the piston by introducing high pressure fluid from a pump to a rubber, tubular ring or a hollow rubber disc.
Patent GB-905123-A (GB)
Title: Electric continuous-flow liquid heaters
IPC: F24H9/20
Filed: 1958-12-12
Abstract: 905,123. Electric flow heaters. ECKERFELD, A. Dec. 12, 1958 [Dec. 14, 1957; April 8, 1958], No. 40100/58. Class 39 (3). An electric continuous flow heater for water comprises a body 1 of electrically-insulating plastic which accommodates a heating unit having heating coils 11 located in channels 10, 10<SP>1</SP> formed in a ceramic support member 7. An end plate 8 and the member 7 are removable from the body 1 to permit cleaning or exchange of the heating coils. A water supply passage 4 is connected to a chamber 15<SP>1</SP> adjacent a diaphragm 15 and an adjustable throttle screw 16 passes into the passage 4. Upon supplying water to the passage 4 from an inlet 2, the pressure created in the chamber 15<SP>1</SP> causes a current supply switch 13 to be operated and the heating coils to be energized. The water flows from the passage 4 via a recess 5<SP>1</SP> into the channels 10, 10<SP>1</SP> containing the heating coils, the heated water then passing via a further recess 5<SP>11</SP> into a discharge passage 6. Instead of the channels 10, 10<SP>1</SP> being longitudinally slotted, Fig. 2, they may be completely cylindrical, Fig. 3 (not shown). A modification, Figs. 4, 5, 7, is adapted for use with a three-phase mains supply and has two removable heating units 40, 41, each having three channels containing starconnected heating coils. Switch contacts 44, 45 are normally spring-held in the off-position but are moved to the on-position by diaphragmoperated transmission members 48, 49 when water is supplied at inlet 33. The member 48 may be locked in its off-position when only one heating unit is required to be energized. In a further modification. Fig. 11, heating unit 80 is detachably mounted on a body 62, and resilient washers provide watertight seals where the water passes between the unit and the body. One of the seals 84 has an aperture of a size to act as a restrictor to the water flow. Contacts 86 are operated by a pressure-actuated diaphragm (not shown).
Patent GB-1446913-A (GB)
Title: Printed circuit boards and method of assembly thereof
IPC: H05K3/36
Filed: 1973-08-24
Abstract: 1446913 Assembling circuit boards INTERNATIONAL STANDARD ELECTRIC CORP 24 Aug 1973 [28 Aug 1972] 40199/73 Heading H1R A pair of lamellar circuit elements, which are basically sheet-like, such as printed circuit boards, but which may include a discrete component such as a coil, filter or amplifier, wherein at least one of the circuit elements is a printed circuit board, are assembled together perpendicular to one another by interlocking slots and flaps in the respective elements, by providing a slot g in one element a and "punching-up" a raised portion c in the surface of a flap of the other element b, and assembling the elements together such that the raised portion c snaps into position within the slot g to be located firmly thereby. As shown, two printed circuit boards are assembled perpendicular to each other and the width f of the slot g in board a is greater than the general width h of the board b, and the raised portion c in board b is formed by "punching-up" the opposite surface of the board. Conductive copper coatings e on one or both sides of the boards a, b may be connected together by solder f.
Patent GB-1491904-A (GB)
Title: Display clips
IPC: G09F3/08
Filed: 1975-09-11
Abstract: 1491904 Clips A W HOOD 11 Sept 1975 [16 Sept 1974] 40227/74 Heading E2B A springy clip has inclined ends 2 which fit into support rails 6, 7 (Fig. 4) thus bowing the central portion 1 so that a cord 8 or a bracket arm (Fig. 5 not shown) may be gripped in slot 3. This slot may be variously serrated.
Patent GB-1117501-A (GB)
Title: Billet extrusion press
Inventor: LOMAS ERNEST
IPC: B21C23/21
Filed: 1964-10-02
Abstract: 1,117,501. Extruding; billet piercing. LOEWY ENGINEERING CO. Ltd. 24 Sept., 1965 [2 Oct., 1964], No. 40295/64. Headings B3H and B3P. A press for extruding hollow billets includes two billet containers 32 and 132 which are mounted on a common carrier 28 for rotational movement between a main extrusion station on axis X-X and a parking station on axis Y-Y, where perforation of a billet is made prior to its extrusion. A crosshead 16, ram 14 and mandrel 18 are operated by a main cylinder 10, tie rods 24 connecting a platen 20 to the cylinder. The carrier 28 rotates about one of the tie rods, Fig. 2, while a further carrier 30, provided with dies 34 and 134, rotates about an opposed tie rod 24. A cylinder 54 and crosshead 66 are disposed on axis Y-Y to serve in perforating a billet. In operation, the unused remainder of a billet which has been extruded at the main station is moved by the carrier 28 to the parking station. Here a stem 56, with the aid of a disc 52 which has previously been moved into alignment with the axis Y-Y on a table 42, is moved to the left to eject the remainder from the container 132. A rotating cleaning brush is, then moved through the container from the left in preparation for the insertion of a fresh billet B. The billet is raised on its table 40 to allow the stem 56 to locate the billet in the container and then force a perforating tool 48 through the billet (which may or may not be provided with a pilot bore). A bolster 72 is raised to a position to the left of the container before perforation. As the stem is retracted a supply of powdered lubricant is blown from holes in the end of the stem (Fig. 4, not shown) on to the inner surface of the billet. The billet is then moved on the carrier to the main station for extrusion, the remains of an extruded billet simultaneously being moved to the parking station. More than one parking station may be provided, one station being provided for producing a pilot hole, and another for performing the perforation, for example.
Patent GB-867727-A (GB)
Title: Improvements in and relating to oil burners
Inventor: LAWRIE PHILIP
IPC: B05B7/06
Filed: 1958-12-15
Abstract: 867,727. Liquid fuel burners. SWINNEY BROS. Ltd. Dec. 14, 1959 [Dec. 15, 1958], No. 40312/58: Class 75(1). An oil burner comprises an oil tube 5, an outer air tube 1 and an inner air tube 7 adapted to be moved longitudinally to open and close an inner annular gap 13 for primary air between a nozzle 8 on the inner tube 7 and a nozzle 6 on the oil tube 5 and an outer annular gap 12 for secondary air between nozzle 8 and a nozzle 3 on the outer air tube 1. The secondary air is swirled by a vane ring 9 and the primary air is swirled by a vane ring 11. The inner air tube 7 is moved longitudinally by means of a lever 17 attached to a rotatable member 16 having a pin 15 engaged in a helical slot 14 in the inner air tube. Rotation of the inner air tube is prevented by an extension 18 thereon projecting into a hole 19 in a flange 20 on the body 4 of a metering oil valve attached to the outer air tube 1. The oil valve comprises a cylindrical spindle 21 having a V groove 22 adapted to co-operate with a seat 23. The valve spindle 21 extends rearwardly through an oil seal to terminate in a fork end 26 carrying a swivel pin 34 having a hole engaged by a lever 30 pivoted at its remote end to a fulcrum pin 32 adjustable in two planes. The lever 30 is pin jointed at 29 to link rods 28 which are pin jointed at 27 to the extension 18 of the inner air tube so that movement of the inner air tube to open the annular gaps 13, 12 for primary and secondary air also opens the oil valve. The fulcrum pin 32 is adjustably clamped by two nuts 38 to a clamping block 37; adjustment of the fulcrum pin alters the oil flow for any particular setting of the inner air tube. The clamping block 37 has a hole through which passes a vertical stud extending from the valve body and the block is clamped in adjusted position thereon by two lock nuts; adjustment of the clamping block 37 alters the length of the stroke of the oil valve. Before reaching the metering valve the oil passes through an annular space 46 surrounding the valve body 4 and through a shut off valve 48. In the modification shown in Fig. 5 the coupling between the inner air tube 7 and the metering oil valve 21 comprises a fulcrum block 60 disposed between parallel side faces in the valve body 4. The block is adjusted vertically and horizontally by means of crank pins engaging horizontal and vertical slots 62, 63 in the block. To prevent rotation of the fulcrum block a pin 66 extends from a guide block 67 into a hole in the fulcrum block, the guide block being disposed in a recess allowing movement at right angles to the metering valve. The lever 69 engages in a slot in the spindle of the valve and the movement of the inner air tube is transmitted to the lever 69 by a push rod 71. The linkage is spring loaded by a spring 73 around the metering valve 21. Specification 819,221 is referred to.
Patent GB-1474064-A (GB)
Title: Hand firearm
IPC: F41A3/86
Filed: 1974-09-17
Abstract: 1474064 Firearm IZHEV MEKHANICHE ZAVOD 17 Sept 1974 40353/74 Heading F3C A firearm comprises a housing 1, Fig. 1, a barrel 2 which is supported by the housing 1, a slide 4 which is slidably mounted on the housing for blocking the bore of the barrel 2, a firing and trigger mechanism 6 which is mounted on said housing 1, a return spring 7 having one end thereof engaging the housing and the other end thereof engaging the slide 4, and a damperspring 10 having one end thereof engaging the housing 1 and having the other end thereof co-operating with the slide 4 via an intermediate part 11 when firing of the firearm is effected, the intermediate part 11 being movable with the slide 4 and urged into permanent resilient contact with the housing in a direction transverse to the direction of the slide movement so as to absorb some energy of the slide during both directions of movement of the latter. The permanent resilient contact is effected by a block 12, Fig. 2, which is urged to the intermediate part 11 by a leaf-spring 13 which is adjustable by a screw 14. After a cartridge has been fired, the slide 4 recoils rearwardly and compresses the return spring 7, and a lug 9 of the slide 4 acts upon the part 11. The latter is displaced with the slide 4, overcoming the friction of the block 12 and loading the damper-spring 10. The slide is then returned by the springs 7 and 10. In another embodiment portion 16, Figs. 3 and 4, of the housing 17 has an intermediate part 18 urged thereto by a spring 28, via a block 27. A spring 29 is positioned between the intermediate part 18 and a partition 26 secured in the member 16 and a spring 25 is positioned between the partition 26 and the housing 17. After a cartridge has been fired, the slide 4 recoils rearwardly and compresses a returnspring 30, and a lug 32, Fig. 5 of the slide 4 acts on the part 18. The latter is moved relative to the portion 16 along with the slide 4 in a rearward direction. Friction between the part 18, the block 27 and the member 16 is overcome and a damper-spring 29 is loaded. The portion 16 is displaced rearwardly via the spring 29 and the spring 25 is compressed. The slide 4 is returned by the spring 30, the spring 25 returns the portion 16 and the spring 29 moves the part 18 into its forward position.
Patent GB-1271416-A (GB)
Title: Preparation of phthalocyanine pigments
Inventor: DYTHAM RAYMOND ARTHUR
IPC: C09B47/06
Filed: 1969-08-13
Abstract: 1,271,416. Preparing phthalocyanine pigments. CIBA GEIGY (U.K.) Ltd. 12 Aug., 1970 [13 Aug., 1969], No. 40452/69. Heading C4P. Phthalocyanine pigments are prepared by preparing an unsubstituted or halogenated phthalocyanine (preferably containing up to 1À7 Cl atoms per molecule) in a nitro aromatic solvent, e.g. nitrobenzene, stirring the mixture with at least 3À5 parts by weight concentrated sulphuric acid or oleum per part of phthalocyanine, treating the acid pasted mixture with water or aqueous alkali and with a polar C 1 -C 4  aliphatic solvent, and separating the treated pigment from the mixture. The aliphatic solvents used include alkanols, ketones, alkoxyalkanols, alkylene glycols and alkyl monocarboxylates, and especially isopropanol which may be used in admixture with 10-30% water. The acid used is preferably 90-100% sulphuric and the SO 3  content may be 20% at most, and stirring with the acid takes place at 20-100‹ C.
Patent GB-987660-A (GB)
Title: Improvements in or relating to synchronous motors having permanent magnetic rotors
IPC: H02K21/18
Filed: 1963-10-15
Abstract: 987,660. Electric motors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 15, 1963 [Oct. 18, 1962], No. 40647/63. Heading H2A. In a small single or polyphase synchronous motor with permanent magnet rotor, the ratio of reactance to resistance (X/R) lies between 0 and 5, the ratio of back E.M.F. to applied voltage (E/U) lies between 0 and 1À2, and X/R is always greater than 4 minus 6À5 E/U. The desired high back E.M.F. is obtained by the use of a diametrically magnetized rotor 4 of high induction, and a large number of stator turns. The low reactance is achieved by making the rotor of low permeability material (i.e. <SP>1</SP>/ 10  the value normally used), allowing little stray flux, and using a series condenser C, if desired. The unsymmetrical stator poles ensure starting. The stator may be provided with an auxiliary rotary field and the rotor may carry hysteretic material or a squirrel cage.
Patent GB-905343-A (GB)
Title: Anthracene derivatives and their preparation
IPC: C07C233/00
Filed: 1959-11-30
Abstract: The invention comprises compounds of the general formula <FORM:0905343/IV (b)/1> (wherein X represents a hydrogen or halogen atom and R1 and R2 each represent a hydrogen atom or a C1-4 alkyl group), and the preparation thereof by converting an acid of the general formula <FORM:0905343/IV (b)/2> (wherein Alk represents a C1-4 alkyl group) into its acid halide, reacting this with diazomethane to give a diazoketone, and subjecting this to thermal decomposition in benzyl alcohol or cyclohexanol, followed by hydrolysis of the resulting ester, and finally, if desired, converting the alkoxy groups to hydroxy groups by the action of a hydrohalic acid.  The products are intermediates for the synthesis of pharmaceutical compounds, especially of the tetracycline series. Acids of the second general formula above are prepared from compounds of the general formula <FORM:0905343/IV (b)/3> (wherein A represents a halogen atom or an alkoxy group) by reducing the group -CO-A to -CH2OH, converting the alcohol into its hydrohalic or p-toluenesulphonic ester, condensing this with a sodium carbethoxysuccinic or -methylmalonic acid dialkyl ester, cyclizing the product by treatment with polyphosphoric acid, hydrolysing any esterified carboxyl groups still present, and partially decarboxylating the resulting dicarboxylic acid.
Patent GB-967120-A (GB)
Title: Method and apparatus for the charging and replenishing of auxiliary filtering agents for sedimentation filters
IPC: D06F43/08
Filed: 1962-10-29
Abstract: 967,120. Adding filter aid ; mixing solids with liquids in flow. M. BOHLER, and F. WEBER. Oct. 29, 1962 [Oct. 27, 1961], No. 40867/62. Headings B1C and B1D. Filter aid and liquid from compartment 2 are withdrawn by a pump 10 and supplied along a pipe 11 to a filter (not shown) until all filter aid is exhausted from compartment 2. Thereafter, at intervals, liquid is passed back from pipe 11 via a valve 13 to a compartment 3 to entrain further filter aid in liquid, the resulting suspension overflowing through an opening 17 into compartment 2, and being entrained by pump 10. The filter being supplied may be that in a dry-cleaning machine. A control device 14 for the valve 13 may be incorporated in the automatic circuit of the machine so that a predetermined quantity of filtering agent may be supplied for each charge.
Patent GB-1133821-A (GB)
Title: Portable magnetic tape recorder
Inventor: FINDEISEN HEINZ HELMUTH
IPC: G11B15/18
Filed: 1965-09-27
Abstract: 1,133,821. Tape recorder. EPSYLON RESEARCH & DEVELOPMENT CO. Ltd. 26 Sept., 1966 [27 Sept., 1965], No. 40959/65. Heading G5R. A tape recorder is prepared for operation when the lid 13 of a box 11 containing the recorder is lowered. The recorder is supplied with magnetic tape from a twin spool cassette 33 which is located on a platform 35 by pins 36 and secured by spring catches 38. Drive hubs 39, 40 which are mounted on the platform and engage the tape spools within the cassette, are each provided with three spring-loaded pins 42 which locate in a groove in the spool bore and urge the spool into driving contact with a flange 43 on the hub which is covered with frictional material. The lid 13 of the box is provided with three brackets 16-18 each of which carries a roller which during opening or closing of the box co-operates with an associated upstanding stem 20, 22, 24 respectively mounted on spring-loaded slides 19, 21, 23. On closure of the lid the outer slides are moved to actuate guide means which urge the loop of tape, extending externally of the cassette between the two spools, into contact with the two pairs of record and playback heads, 29-32 and the inner slide is shifted to move a pinch roller 26 and hence the tape into contact with capstan 27 which can drive the tape in either direction. In addition on closure the lid switch means (not shown) are actuated to energize a pair of solenoids which remove the brakes from oppositely rotating spool-hub drive motors.