baber/WOPTO huggingface dataset:
Patent GB-953263-A (GB)
Title: Pressure responsive devices for firing explosive charges
IPC: F42B3/10
Filed: 1962-04-25
Abstract: 953,263. Firing devices for underwater explosives. E. I. DU PONT DE NEMOURS & CO. April 25, 1962 [April 25, 1961], No. 15728/62. Heading B7A. An initiator, primarily intended for use under water, comprises a piston 6, a metal spring striker 8 and a unit 5 which houses an ignition charge 15, a primer charge 17, a base charge 18 and at its inner end an anvil 22 and percussion cap 13. The piston 6 is moved against the action of a compression spring 10 by external pressure whereby the striker 8 is flexed against an arrester 9. Continued flexing of the striker causes it to assume a configuration whereby it snaps off the arrester 9 to impinge permissively on the cap 13. The pressure required for initiation is varied by a collar 11 movable axially against the lower end of spring 10. Tool holes 12 and an access aperture 2 may be provided as also may a safety pin 20. For use at low pressures, sealing ring 23 is used and outer shell 1 is sealed, i.e. aperture 2 is omitted, or suitably plugged. For use at high pressures, sealing ring 23 is omitted, thereby making the effective cross-sectional area of piston 6 that of tube 3. To test the device a dummy unit 5, having a percussion cap 13 only, may be used. Two detailed examples are given. U.S.A. Specification 3,095,815 is referred to.
Patent GB-691119-A (GB)
Title: Improvements relating to electric discharge devices
Inventor: SMART DAVID LORIMER
IPC: H01J13/34
Filed: 1950-06-23
Abstract: 691,119. Metallic-vapour apparatus. ENGLISH ELECTRIC CO., Ltd. June 22, 1951 [June 23, 1950], No. 15740/51. Class 39(i). A discharge tube has a single main anode 13, control grid 14, liquid cathode 12, an exciting anode 18, an envelope 10 of insulating material, and an electrode 22 which is made of continuous material, completely screens the exciting anode from the main anode and the control grid, and is directly connected to the cathode by two widely spaced straight insulated supporting conductors 23 which form a connection of low inductance. In the preferred form, the graphite anode 18 is carried by a metal arm 19, which is hinged at 20 to an insulating block 21 on the electrode 22 and carries an armature 27 adapted to be attracted by the electromagnet 26 to strike the continuous-current exciting arc. The cathode spot is fixed by the plate 28. Ceramic tubes 24 surround the conductors 23 and the anode 18 is prevented from touching the electrode 22 by an insulator 25. Specification 665,467 is referred to.
Patent GB-1219683-A (GB)
Title: Improvements in or relating to gear selection devices
Inventor: HARPER STEPHEN JAMES
IPC: F16H59/10
Filed: 1968-04-02
Abstract: 1,219,683. Operating push-pull cables. ROOTES MOTOR Ltd. 19 May, 1969 [2 April, 1968], No. 15873/68. Heading B7E. [Also in Division F2]  Bowden mechanism for transmitting movements of a gear lever arm 13 to a gear selector arm 15 of a gear-box comprises an inner flexible cable 31, having one end 21 pivotally attached to a fixed point 22 and the other end 18 pivotally attached to the gear selector arm 15, and a flexible sheath 17, having one end 23 connected to the gear lever arm 13 and the other end 19 mounted in a fixed ball housing 20. A gear lever 12 is secured to the arm 13 and they have a pivot 14 at their junction.
Patent GB-929126-A (GB)
Title: Improvements in and relating to thermocouple arrangements for nuclear reactor fuel elements
Inventor: UNDERWOOD ROBIN ARTHUR
IPC: G21C17/10
Filed: 1961-05-02
Abstract: 929,126. Nuclear reactors. C. A. PARSONS & CO. Ltd., NUCLEAR POWER PLANT CO. Ltd., and A. E. I. JOHN THOMPSON NUCLEAR ENERGY CO. Ltd. March 16, 1962 [May 2, 1961], No. 15887/61. Class 39 (4). In a thermocouple arrangement for a nuclear reactor fuel element, which includes a thermocouple cable comprising a sheath enclosing thermocouple conductors, the cable passes through a tensile weak link device attached to the fuel element, the sheath being removed from the conductors for a portion of their length within the device and adjacent ends of the sheath on either side of the bared portion of the conductors being joined by a tensile weak link of tensile strength lower than that of the sheath but greater than that of the conductors, the bared portions of the conductors being of a length such that they do not become taut under the application of a pull to the cable until the weak link has broken. Fig. 1c shows a plan view of an arrangement partly assembled. A base plate 1 attached to the fuel element (not shown) is provided with a central slot 2 into which the cable 5 is inserted. Part of the sheath of the cable is removed and the base conductors 7 of this part fit into grooves in the lower part 4a of an insulating box which fits into a rectangular recess in the base plate. A cover (not shown in Fig. lc) fits over the lower part 4a of the insulating box, and a weak link (not shown in Fig. 1c) passes over the cover and joins together the two parts of the sheath. The weak link can be covered by a cover plate to protect it from damage during loading into the reactor. For convenience the sheath of the cable may be enlarged, as shown, in the portion fitting in the slot 2, and the enlarged portion may have a square or rectangular cross-section which closely fits the slot to prevent undue transverse movement of the cable in the slot.
Patent GB-660505-A (GB)
Title: Improved pressing tools or press moulds, more particularly for the production of articles from hard metal powder and the like
IPC: B30B15/02
Filed: 1949-06-15
Abstract: 660,505. Dies for compression-moulding hard metal powder &c. STORA KOPPARBERGS BERGSLAGS AKTIEBOLAG June 15, 1949 [Aug. 5, 1948], No. 15933/49. Class 87(ii) The dies are made from a mixture of one or more synthetic thermosetting resins with graphite or a material possessing similar lubricating properties, e.g. 75 per cent " Bakelite (Registered Trade Mark) and 25 per cent graphite. Such a die may be surrounded by a strengthening shell of steel.
Patent GB-593945-A (GB)
Title: Improvements in or relating to timber connectors
IPC: E04B1/48
Filed: 1945-06-22
Abstract: 593,945. Bolted joints. MERCER, R. (Timber Engineering Co.)..Tune 22, 1945, No. 15996. [Class 83 (iv)] [Also in Group XXV] Bolted joints for connecting timber in which connectors of the split ring type are employed, have annular grooves cut concentrically with the bolt holes to receive rings having a central cylindrical section 1 received half in each timber and outer sections, Fig. 4, tapering to the outer edges 3, 5.
Patent GB-702229-A (GB)
Title: Microscope illuminators
IPC: G02B21/06
Filed: 1951-07-09
Abstract: 702,229. Reversible illuminating appliances. WEISKOPF, E. C., and WHITEHEAD, E. C. [trading as TECHNICON CO.]. July 9, 1951 [July 12, 1950; Nov. 6, 1950], No. 16207/51. Class 97(1) A microscope illuminator comprises a light source and a lens device comprising a first lens means, of the short focal length type, collimating the light from the source, and second lens means which receives the collimated light and passes it at a predetermined distance from the device. As shown the illuminator is mounted on a base plate 16 on which may be mounted a microscope and which may be rotatable to an inclined position on a second base, as described in Specification 677,683. The illuminator comprises a lamp 44 having a straight or coiled filament 56, and a spherical or cylindrical reflector 62,. adjustable by screws 66, 68 to form an image of the filament on the rear plane or curved face of the first lens means which is a short focus condenser 58, 60, for example, of the AbbÚ type. Light from this surface is collimated by the lenses 58, 60 and passed by a lens 70, forming the second lens means on to an adjustable iris diaphragm 50, an intermediate member 48 being provided for the location of colour filters in the beam. Light from the diaphragm then passes to a second lens system 52 comprising two lens systems rotatably mounted for alternative use. As shown in Fig. 4 the first system comprises lenses 90, 92 mounted on pivots 99 and 104 and connected for simultaneous rotation by L-shaped arms 106, 108 pivoted to a rod 110, a spring 116 being connected to the arm 108 and rod 110 to prevent lost motion. In the position shown the lens 90 is at the same distance from the diaphragm 50 as is the lens 70, and an image of the lens 90 is formed at the stage of the microscope by the lens 92 and the condenser of the microscope by way of a reflector 36 aligned with the optical axis of the microscope. This system is used for lower power microscope objectives. For higher power objectives the lenses 90, 92 are rotated through 90 degrees to an inoperative position thereby bringing into operation position a lens 88, mounted on the same shaft 99 as the lens 90, and which forms an image of the diaphragm 50 at the stage of the microscope. The reflector 36 may be adjusted along the optical axis of the illuminator and clamped in position by a screw 134.
Patent GB-260945-A (GB)
Title: Improvements relating to electric resistances
IPC: H01C7/04
Filed: 1926-06-28
Abstract: 260,945. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Grondahl, L. 0.). Nov. 7, 1925, [Convention date]. Resistance materials. -A resistance is made by converting a portion of a metal blank into a compound such as an oxide. The blank of iron or copper may have the section shown in Fig. 3 with a narrow bridge-portion 3 which is wholly converted into oxide and thick ends which after treatment consist of a metal core 2a and oxide coating 4. The oxide is then removed from the ends by acid or sandblasting as shown in Fig. 4, the metal portion 2a serving as terminal.
Patent GB-570534-A (GB)
Title: Improvements relating to the yarn guides of yarn winding machines
IPC: B65H57/00
Filed: 1943-10-04
Abstract: 570,534. Winding yarns. ARUNDEL, COULTHARD, & CO., Ltd., and RIDGWAY, F. Oct. 4, 1943, Nos. 16257 and 19637. [Class 120 (ii)] In a yarn winding machine having a thread guide reciprocated by a cam which is driven at variable speeds in order to prevent the building of packages with tight ends the yarn guide is resiliently mounted in order at reversals to throw over to a varying extent according to its speed of reciprocation so that the yarn reversal points are more widely distributed and the package formed with softer ends. As shown, the guide a is carried in a sheet metal holder b, Fig. 1, fixed to a top plate c between which and a plate d are secured rubber or other resilient blocks e having metal sleeves f through which pass the rods or rails along which the guide is reciprocated by a cam engaging the head g of the securing bolt h. In a modification, the holder b is bonded to a rectangular rubber block to which is also bonded the turned-up end of a supporting plate. In a further modification, the guide arm m, Fig. 3, is mounted on a rubber or like bush n around a projecting peg o on the part p carrying the cam-engaging peg q.
Patent GB-402818-A (GB)
Title: Improvements in or relating to rotary engines, pumps and the like
IPC: F01C9/00
Filed: 1932-06-09
Abstract: 402,818. Rotary engines. DAW, A. W., and DAW, Z. W., 11, Queen Victoria Street, London. June 9, 1932, No. 16272. [Class 110 (ii).] A rotary internalcombustion or steam engine, or compressor comprises oscillating vanes 7 mounted on a shaft 9, co-operating with abutment partitions 6, 6a, to form working - chambers 24-27. The shaft 9 is connected to the main shaft 18 by cranks and connecting rods 14, 15, and a sliding crosslead 16 supported on pillars 19a. In the case of an engine two inlet and exhaust oscillating piston valves 28, 28a, each alternately connect inlets 22, 22a with passages 2a, 4a, or 3a, 5a, or similar passages, axially displaced, for exhaust are controlled by the two exhaust valves. For a combustion engine combustion chambers are placed in the casing walls in communication with the passages 2a-5a. For a compressor valve spindles 32 are connected by links and bell-cranks, Fig. 25 so that two inlet valves or two exhaust valves are moved together by cams 44 on the shaft 18. In another arrangement for an engine two push rods 34 are pivoted to rocking levers having bell-cranks controlled by cams on a separate cam-shaft, running at half the speed of the main shaft, geared to the shaft 18. Other types of valve and valveoperating mechanism may be used. For an engine the sequence of firing is 24, 27, 26, 25. The impeller vanes are cooled by water or oil under pressure entering the centre and being circulated throughout the vanes and shaft. The piston valves are also cooled through oil or water circulating around the spindle 32 and valve 56 as in Fig. 21. The engine cylinder is water or steam jacketed for internal-combustion engines, steam or air jacketed for steam engines, or water jacketed for compressors. Two engine units may be arranged side by side with the crankshaft between them. The cylinder 1 may be arranged for more working- chambers than described. In a steam engine cut-off may be arranged by stepping the cams. Lubricating passages are provided for oil under pressure to flow through the impeller vanes, hub, main cylinder and shaft. In the Provisional Specification it is stated that the piston vanes and boss of the rotor are made of cast iron, steel or a light alloy with the interior hollowed out for lightness.
Patent GB-245722-A (GB)
Title: Improved plate for iron and steel constructions
IPC: B23K20/227
Filed: 1925-06-24
Abstract: 245,722. Larcomb, E. Jan. 12, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Metal pipes and tubes.-Plate for use in iron and steel constructions is provided with a metal coating of zinc, platinum, &c. to protect the plate from corrosion &c. The metal coating may be sprayed on to the plate or may be in the form of thin sheets riveted on to the plate. The sides and ends of the plate may also be coated, and the plates may be curved, oblong, circular or cylindrical as in the case of pipes and tubes.
Patent GB-594173-A (GB)
Title: Improvements relating to filing systems
IPC: B42F15/02
Filed: 1945-06-27
Abstract: 594,173. Suspended folders. GUICHARD, R. A. E. June 27, 1945, No. 16337. Convention date, Dec. 4, 1944. [Classes 16 and 146 (i)] A folder 1, for a filing system where folders are suspended on rails, has more than one row of perforations 5 at each upper edge in association with folding lines 3, 3a and folding lines 6 in the centre, adjacent folders being joined through the perforations 5 by a rod 7 and the capacity of the folder depending on the folding lines and perforations selected. The perforations 5 can be in register with each other or staggered. Fig. 6 shows folders with different capacities, the turned-down flaps 2a, 2b, 2c at the free edges of the folders varying in length according to the width of base 6a, 6b, 6c employed. The rods 7 may project beyond the folders and be notched for suspension on rails or an inverted V-section suspension member may be clipped over the rod 7 and the upper edge of the folders. In a modification, the suspension member 14, Fig. 11, may be of square cross-section with a slot 15 to accommodate the flaps 2, 2a, and further slots 16, 17 through which the parts 1 extend, the rod 7 being inserted subsequently. Specification 464,221 is referred to. Index tabs.-An index tab may be employed having perforations corresponding to the perforations 5 for insertion of the rod 7 and with a part projecting above the folders. Alternatively the label may be mounted beneath a channel shaped transparent member which clips on to the V-section suspension member or beneath the V-section suspension member if the latter is made transparent.
Patent GB-736377-A (GB)
Title: Improvements in vacuum brake ejectors
Inventor: MARSH GERALD CRANTON
IPC: B60T13/46
Filed: 1953-06-15
Abstract: 736,377. Brake ejectors. GRESHAM & CRAVEN, Ltd. April 22, 1954 [June 15, 1953], No. 16381/53. Class 71. A brake ejector comprises a rotary member g having a spindle b connected to the brake handle at one end and having a cam at the other for operating the steam valve. The member g is hollow and has ports h, j, the port h controlling a port i whereby communication between a space s connected to the train pipe and a space o evacuated by the ejectors through the valves p, q, r is interrupted when an air valve e is opened. The air valve e has a stem m with which an edge k of the port j comes into contact to open the valve when the member g is rotated.
Patent GB-1422778-A (GB)
Title: Shaped polymeric articles
IPC: C08J3/28
Filed: 1972-04-10
Abstract: 1422778 Photocurable articles IMPERIAL CHEMICAL INDUSTRIES Ltd 9 April 1973 [10 April 1972] 16399/72 Heading C3P Photocurable articles which are capable of being further shaped are formed by polymerizing with visible or ultraviolet light a composition comprising a liquid which contains an ethylenically unsaturated material in the presence of a photopolymerization initiator, the composition being only partially cured to a non-fluid state and the article being then protected from further irradiation until it is subsequently further shaped and cured to form a rigid article of more complex shape. The polymerization of the liquid may be effected selectively by first covering the polymerizable composition with a mask, whereby some areas can be polymerized to a greater extent than others. The photocurable articles may take the form of a sheet, film, rod or tube. The subsequent further shaping may be effected by vacuum forming, extruding, moulding or hand-working, and the further curing may be by means of irradiation and/or heating. The articles may optionally include fibrous reinforcement, e.g. of glass, asbestos, carbon, nylon or polyethylene terephthalate, as well as pigments, antioxidants, antiozonants, fillers (e.g. calcium carbonate), blowing agents and UV stabilizers. The ethylenically unsaturated material may be polymeric or monomeric or a mixture thereof; the examples use (a) an unsaturated polyester/styrene combination, the polyester being derived, for example, from maleic anhydride, phthalic anhydride and propylene glycol; and (b) an unsaturated liquid polymer obtained by esterifying methacrylic acid with the condensation product of adipic acid, phthalic anhydride and ethylene glycol. Photoinitiators used in the examples are benzil/ dimethyl/benzylamine; benzoin; and benzil/2- dimethylaminoethyl methacrylate. Uses for the invention include the production of ships hulls, car bodies, caravan panelling, surgical bandages, articles for packaging, decorative articles, and printed or embossed sheets.
Patent GB-318569-A (GB)
Title: Improvements in signalling arrangements, particularly for use in telephone systems
IPC: H04Q1/446
Filed: 1928-06-06
Abstract: 318,569. Standard Telephones & Cables, Ltd., (Western Electric Co., Inc.). June 6, 1928. Manual exchange systems.-In a system in which calling &c. signals are transmitted by currents within the range of voice-frequencies, discrimination between momentarily-occurring voice currents of signal frequency and the actual signal currents is determined by associating a condenser with a relay in such a way that the relay only responds when the duration of the signal frequencies exceeds the charging time of the condenser. Fig. 2 shows combined signal transmitting and receiving means at the junction of a local line with a toll line. Low-frequency ringing currents incoming from the left operate relay 31 which in turn energizes relay 61 thereby connecting voice-frequency signal currents VF over the toll line to the right. In order to ensure that the signal currents are applied for a sufficient time to operate the signal receiver at the other end, an auxiliary relay 37 operated by relay 61 through a condenser 35 maintains relay 61 operated independent of relay 31 until condenser 35 is fully charged. Signal currents incoming over the toll line operate relay 42 causing the interruption of normal circuits for relays 43, 45, the latter however remaining operated for a short period over condenser 48. If the signal currents exceed the charging time of this condenser, relay 45 relapses and causes relay 32 to connect low-frequency source LF to the local line. The condenser is connected in series with a low resistance so that it will immediately discharge even if the signal currents are only momentarily interrupted. In a modification, Fig. 3, relay 58 controlling relay 32 is normally de-energized. When relay 54 falls back on the receipt of a signal, battery 56 is connected to relay 58 and condenser 60 in parallel but the relay does not get sufficient current to operate until the condenser is charged. The invention is stated to be applicable also to carrier and radio systems. Specification 208,038 is referred to.
Patent GB-624263-A (GB)
Title: Improvements concerning the feeds of milling or other machine-tools
IPC: B23Q1/00
Filed: 1947-06-23
Abstract: 624,263. Milling &c. machine details. HERBERT, Ltd., A., and HUGO, L. J. June 23, 1947, No. 16483. [Class 83 (iii)] A machine tool comprises one or more manuallyoperated slides or the like, each having a worm-shaft or other feed-driving member which, when it is desired to operate the slide by power, is detachably connected to the driven end of a flexible drive means, which is detachably connected at its driving end to a multi-speed power unit supported on the machine tool. As shown in Fig. 1, the guide 12 of a work-table 11 is rotatable by means of a manuallydriven worm shaft 15 on which is mounted a wormwheel 15a engaged by a worm 16. When it is desired to drive the work-table 11 by power, the driven end of the flexible drive means 22 is connected to the worm 16, the other end of the means 22 being connected to a multi-speed power unit 18. Alternatively, the driven end of the means 22 may be connected to either of the traverse screws 8, 10 of the milling-cutter 17. As shown in the remaining figures, the driving end of a flexible shaft 42 is coupled to the keyed end 45, Fig. 2, of a shaft 28 driven by bevel gears 25, 26, from the output shaft 24 of a change-speed mechanism 20, and the driven end, Fig. 6, of the flexible shaft 42 is connected to an element 51, in driving connection with a worm-shaft 35, by means of a bayonet joint formed between slots 56 and pins 55 on a slidable collar 54. The shaft 28 is driven frictionally from the bevel gear 26 by means of a collar 29 carrying spring- pressed balls 30 so that the drive is automatically disconnected when there is overload.
Patent GB-1425841-A (GB)
Title: Stackable tray
IPC: B65D1/36
Filed: 1973-04-06
Abstract: 1425841 Nestable tray G KAUPERT 6 April 1973 [4 Aug 1972] 16484/73 Heading B8P In a nestable tray having cup-like depressions, upwardly converging side walls of adjacent depressions are joined at their upper edges by webs 3 and certain of the webs 3a, 3c, 3e or (3g, 3i) Fig. 3 (not shown) extend to or at a level below that of other webs 3b, 3d, 3f or (3h) Fig. 3 (not shown) so that when a plurality of the trays are nested, the lower webs 3a, 3c, 3e or (3g, 3i) of an upper tray contact the higher webs 3b, 3d, 3f or (3h) of the tray in which the upper tray is nested. The lower and higher webs 3 may lie in horizontal spaced parallel planes, Fig. 3 (not shown), or they may be curved downwardly to different degrees, as shown. The heights of the webs at the intersections between longitudinal and transversely extending webs may also be different from one another.