baber/WOPTO huggingface dataset:
Patent GB-1367578-A (GB)
Title: Safety lock
IPC: B04B7/06
Filed: 1972-11-27
Abstract: 1367578 Safety locks O ROCCHITELLI 27 Nov 1972 [26 Nov 1971 7 March 1972 28 April 1972] 54662/72 Heading E2A A safety lock for looking and belated releasing of closure doors of machines having internal rotating parts, comprises a latch 2 associated with a door closure hook 3, the latch being held locked, during operation of the machine by a pin 6 which retains the latch in the locking position during the whole working cycle of the machine, and releases the latch after a predetermined time delay in respect of interruption of the power supply to a motor of the machine, so as to permit opening of the door only when the members subject to inertial rotation are completely at a stand-still. As shown, in the door closed position a spring- loaded latch 2 slidable in a housing 1 engages the head of a hook 3 and has, in that position, a hole 5 in alignment with a locking pin 6 an extension 9 of which passes through an electromagnet 14 into contact with a movable core 12 formed with a stem 15 mounting a piston 16 slidable in a chamber 17. Upon closing the door, the hook pivots an arm 20 which causes a push button 19 to bring a blade 18 of a microswitch into contact with a terminal 26 to energise the electro-magnet when the core 12 then moves the pin 6 into the hole 5 of the latch; a gasket 11 dampens vibrations of the core. At the end of a working cycle of the machine, a time delay, before the pin is withdrawn from the hole to release the latch, is determined by the rate of flow of air or oil through holes in the piston 16. In a modification, the moving and timing element comprises a cylindrical body 40 filled with a particular wax and surrounded by an electric resistance element 41 which when heated, upon closure of the door, expands the wax which then pushes forward the piston 38, the rod 32 and a cylinder 29 so that the pin 35 engages in the hole 5 of the latch 2. Upon stopping of the machine at the end of a working cycle current to the coil 41 is interrupted and the wax cools whereupon the rod 32 retracts under the action of the spring 36 to withdraw the pin 35.
Patent GB-1323517-A (GB)
Title: Solenoid control apparatus
IPC: H02H9/00
Filed: 1971-11-25
Abstract: 1323517 Transistor relay operating circuits GENERAL MOTORS CORP 25 Nov 1971 [30 Nov 1970] 54736/71 Heading H3T The flyback voltage of a relay coil 10 is limited by a Zener diode 26 when T14 is turned off; and by means of, for example the resulting voltage across R30 triggering S.C.R. 44, L42 is enabled to ring with C37 to build up a charge thereon, which is stored until T14 next turns on and which then provides a boost to speed current build up in the relay coil, a diode 38 being also provided to conduct relay holding current. The holding current through D38 produces a voltage across R40 which causes the plate 37a of C37 to charge negatively, this stored voltage being reversed by the ringing action with L42 when the relay is de-energized.
Patent GB-1440799-A (GB)
Title: Setting unit in atime switch
IPC: G04C23/08
Filed: 1973-11-26
Abstract: 1440799 Time switches HELIOWATT WERKE ELEKTRIZITATS GmbH 26 Nov 1973 [24 March 1973] 54825/73 Heading H1N A setting arrangement in a time switch comprises a hub (Figs. 1 and 2, not shown) and a switching member (Fig. 3) having a ring-like part 2 of a resilient material having two ends defining a gap with an extending finger part 21 secured to or integral with the ring-like part adjacent one of said ends, said ring-like part being closely fitted in or upon the hub so as to be rotatable about the hub axis when a force is applied to the finger part 21 in one direction and to be locked against rotation when a force is applied in the opposite direction. The internal radius of the ring-like part 2 preferably decreases from one to the other of its ends. A second finger may be provided adjacent the free end of the ring-like part to allow setting in either direction, this further finger being shorter than finger 21 so as not to engage any switch part with which finger 21 co-operates. A time dial may be imprinted on the hub or a separate dial may be fitted thereon by means of resilient tongues (16). A number of switching members may be carried on the hub, which has a recess (14) for receiving a further concentric setting unit on the same operating shaft.
Patent GB-1453780-A (GB)
Title: Air-cushion vehicles
IPC: B60V1/16
Filed: 1974-12-19
Abstract: 1453780 Air cushion vehicles SOC D'ETUDES ET DE DEVELOPPEMENT DES AEROGLISSEURS MARINS TERRESTRES ET AMPHIBIES 19 Dec 1974 [4 Jan 1974] 54837/74 Addition to 1381116 Heading B7K In an air cushion vehicle having the features claimed in claim 1 of Specification 1,381,116 the flexible skirt assembly comprises a plurality of individual contiguous lobe-like finger elements L arranged to enclose a cushion space 500 surrounded by individual contiguous skirts a of circular form each enclosing small separate cushions, each skirt a being in contact with two adjacent such skirts and also with two adjacent finger elements L. Instead of being arranged in a continuous curve as in Fig. 1 the skirt assembly may be arranged as a series of lobes.
Patent GB-1451357-A (GB)
Title: Insulation-piercing contact member and electrical connector
IPC: H01R4/24
Filed: 1973-11-27
Abstract: 1451357 Two-part couplings; terminals BUNKER RAMO CORP 27 Nov 1973 [10 Sept 1973] 54942/73 Heading H2E The contacts of a plug connector each comprises a sheet metal channel shaped terminal portion 36 with side walls 52, 53 and a base wall 54, each side wall having in opposed portions detents 59, 60 inwardly of the channel to form at least one notch 68, 70 for recieving an insulated conductor to be attached to the terminal portion by cutting the insulation and subsequently making electrical connection with the conductor during the reception. Each contact is retained in a respective passage 14 of a moulded mount 12 mounted in a metallic shell (not shown), the retention of the contacts being effected by bonding a tab 42 against the mount. The free edges of the detents provide V-shaped cutting edges (78-80, Fig. 4) and a medial portion (90) for spreading the insulation apart after cutting.
Patent GB-1370890-A (GB)
Title: Cages for ball-bearings
IPC: F16C33/41
Filed: 1970-11-20
Abstract: 1370890 Bearings SKF (UK) Ltd 11 Feb 1972 [20 Nov1970] 55354/70 Heading F2A A plastics ball-bearing cage suitable for use in the bearing of Fig. 1 comprises barriers 12 located between adjacent pockets and extending axially in the same direction as projections 8 defining the mouths of the pockets, each barrier being of such a size as to obstruct the passage of a ball into the space between adjacent projections of adjacent pockets during assembly, but so as not to interfere with deflection of the projections when a ball is inserted through the mouth of a pocket. In assembly, the balls are spaced around the shaft between the races, and held in their approximate positions by grease. The cage is inserted axially, and the barriers 12 may be shaped so as to feed the balls towards the mouths of the pockets. The cage is injectionmoulded.
Patent GB-1235367-A (GB)
Title: Disc brake devices
IPC: F16D65/097
Filed: 1968-11-21
Abstract: 1,235,367. Disc brakes. SUMITOMO ELECTRIC INDUSTRIES Ltd. 21 Nov., 1968 [22 Nov., 1967], No. 55356/68. Heading F2E. A spring 7 urging off the friction pads 3 of a disc brake is so mounted that the spring force is applied to the pads at points offset from the centres of the pads towards the leading edges thereof. The clearance between the pads 3 and disc 1 is thus greater at the leading edges than at the trailing edges resulting in the prevention both of squeal when the brakes are applied and of squeak when the brakes are off. Each pad 3 is applied by two pistons 6 bearing on a backing- plate 4. The spring 7 has V-shaped ends attached to edges of the backing-plates 4 and passes under a guide pin 10 secured in openings in the plates 4 and calipers 2 by a pin 11.
Patent GB-1444814-A (GB)
Title: Circuit packages
IPC: H05K1/14
Filed: 1973-11-29
Abstract: 1444814 Printed circuit component assemblies INTERNATIONAL BUSINESS MACHINES CORP 29 Nov 1973 [18 Dec 1972] 55403/73 Heading H1R A unitary surface package (Fig. 1) comprises a pair of planar parallel aligned insulant substrates 11, 12, e.g. of a ceramic such as alumina. Signal planes 11a, 12a are located on adjacent and supply planes 11b, 12b on opposed major surfaces of the substrates which are spaced apart by supports 13. Substrate 11 has an extending portion with connection contact lands 15, 16 on opposite faces thereof for connection with appropriate input and output signal and supply circuits; lands 16 being connected to circuits of the opposite face through via holes 17. Substrate 12 has plural openings 18 exposing mounting sites, e.g. for semi-conductor integrated circuit chips on surface 11a of substrate 11. Adjacent surfaces 11a, 12a bear plural signal circuit conductors 21, 22 and opposed surfaces 11b, 12b bear supply conductors, e.g. 23 while the surface 11b has ground plane conductors (not shown). The signal conductors may be orthogonally disposed. Portions of conductors 21 adjacent the chip site 24 are exposed between the edges of the chips and of the opening with an enlargement therein for on-soldering selected auxiliary connections (Fig. 2, not shown). Interconnections may be effected between circuit lines 21, 22 on adjacent faces 11a, 12a by soldering at the crossovers. The lines are of, e.g. copper, coated with, e.g. chromium, glass, or oxides to resist soldering, which are plated or coated on except for uncovered areas defined, e.g. by photoresist to receive the solder, which is built up thereon. The solder areas of the conductors in each plane are opposite to corresponding areas of the conductors of the other plane when the substrates are brought together and are coated with flux, and after clamping furnace heat is applied to fuse the solder coatings together. The aligned terminals of the circuit are similarly connected. (Fig. 3, not shown). (Fig. 4, not shown). The substrates are fabricated from green ceramic sheet by stamping out the via-holes and openings and firing, after which the circuit lines are formed by sensitizing with stannous chloride and palladium chloride, electrolessly depositing a film of copper, and etching over photoresist to define the circuit pattern, which is then reinforced electrolytically. Chromium is electro plated on over further photoresist to define non-solderable areas, and tin-lead solder is deposited electrolytically over yet another photoresist on the solderable areas; after which the remaining copper is etched off. Alternatively the ceramic is sensitized, electrolessly plated, with copper, and electrolytically reinforced; after which the chromium and tin-lead are plated on sequentially over photoresists. Thereafter a further photoresist is applied to define the circuit areas, and the redundant copper is etched off. The circuit chips are interchangeable by local heating of the solderable terminals through the gaps 18 by resistance heaters or hot gas jets.
Patent GB-556837-A (GB)
Abstract: 556,837. Stereoscopic radiographs. POWERS, F. T. April 22, 1942, No. 5412. Convention date, April 23, 1941. [Classes 97 (i) and 98 (i)] A strip 10 carries a plurality of transposed stereoscopic pairs of X-ray photographs of uniform size, the two photographs 11, 12 of each pair being in alignment transversely of the strip and the pairs being uniformly spaced, and the dimension of each photograph transversely of the strip being of the same order as the normal separation of the eyes, so that the strip can be placed in a normal stereoscopic viewing apparatus and the pairs viewed in rapid succession. The film is exposed in a camera having a pair of lenses focused on the X-ray fluorescent screen, on which two images forming a stereoscopic pair are produced one after the other by means of a spaced pair of X-ray tubes alternatively energized, each image being photographed through the corresponding lens. The images shown are seen in the stereoscope in a side-uppermost position. Feeding perforations 14 are provided between the pairs of photographs.
Patent GB-1105670-A (GB)
Title: Projection lamp
IPC: H01K1/26
Filed: 1966-12-13
Abstract: 1,105,670. Projection lamps. SYLVANIA ELECTRIC PRODUCTS Inc. 13 Dec., 1966 [28 Dec., 1965], No. 55747/66. Heading H1F. In a projection lamp having a plurality of sealed-in leading-in wires and a filament 28 connected to two of these, a reflector 10 is mounted by means of a ceramic plug 22 passing through an aperture in the reflector and in a clip 38 having turned down edges bearing on the rear of the reflector, a wedge or wedges 40 being driven through a slot in the plug to secure the parts together. The clip has a U-brace secured thereto and mounted on struts 44, 46 (not shown) carried by the lead-in wires 16 (not shown), 17, a second U-brace extending between these. Filament supports 24, 26 pass through the plug 22, one of these being connected to a lead-in wire by a glass-sleeved wire 36 serving as a fuse. The support 26 is connected by a ballast filament 30 to a connecting- rod 32 fastened to the lead-in wire 14.
Patent GB-1205231-A (GB)
Title: Improvements relating to x-ray and gamma ray apparatus
Inventor: BROWNING GEORGE WILLIAM
IPC: H01J5/18
Filed: 1966-12-13
Abstract: 1,205,231. X-ray tubes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 27 Nov., 1967 [13 Dec., 1966], No. 55816/66. Heading H1D. The window 2 in the wall 1 of an X-ray chamber may be either open to permit the passage of X-rays of long wavelength or closed by a hinged cover 3 having a ramp surface 17 and projecting arms 19. A rod 8 carried in the forked ends of an actuating member 12 is movable along slots 9 formed in end strips (10) between a position as shown, where the rod engages the ramp surface 17 to press the cover against a sealing ring 7 surrounding the aperture 2, to a position where the rod presses against the arms 19 to rotate the cover about pivot rods 4 away from the aperture. The actuating member 12 has an arm 13 pivoted at 14 to a bell crank lever 15. The cover 3 may be provided with an aperture 5 covered with a thin plastics membrane 6 transparent to X-rays of short wavelength or the aperture 5 may be omitted so that in the closed position of the cover X-rays are blocked. When the aperture 2 is open the escape of stray electrons may be reduced by the provision of an electron trap and X-ray collimator system comprising an array of spaced parallel apertured screens and intervening permanent magnets as described in Specification 1,136,255.
Patent GB-1197941-A (GB)
Title: Sliding Doors
Inventor: HICKSON FRANK
IPC: E05D15/10
Filed: 1967-05-02
Abstract: 1,197,941. Vehicle doors. F. HICKSON. 31 May, 1968 [2 May, 1967; 7 Dec., 1967; 9 Dec., 1967], Nos. 20219/67, 55716/67 and 56118/67. Heading B7B. One or more tracks having angled ends are integral with or fitted to a door or door opening to move the lower edge of a door away from its' seating position on opening movement of the door.
Patent GB-1165197-A (GB)
Title: Improvements in or relating to Copolymers and Lubricating Oil Compositions containing same
Inventor: SCHULTZ HERMAN SOLOMAN
IPC: C10M169/00
Filed: 1966-12-16
Abstract: 1,165,197. Lubricants. GAF CORPORATION. 16 Dec., 1966 [20 Dec., 1965], No. No. 56384/66. Heading C5F. [Also in Division C3] A lubricating composition comprises a hydrocarbon lubricating oil and from 1 to 4 per cent by weight based on the lubricating composition of an oil-soluble copolymer of methyl vinyl ether and a compound having the general formula CH 2 =CHOR where R is aryl or alkyl of from 3 to 30 carbon atoms, the copolymer containing from 15 to 85 weight per cent of the compound having the said formula and having an inherent viscosity (0À1% solution in toluene) in the range of 0À6 to 2À0. In the examples the lubricating oils were second solvent refined naphthenic oil, second solvent refined stock, second solvent refined naphthenic stock, high wax content oil, and paraffinic base oil.
Patent GB-1338246-A (GB)
Title: Method of securing a member to a metallic support
IPC: F16B5/08
Filed: 1970-12-01
Abstract: 1338246 Welding by pressure TRW Inc 1 Dec 1970 [1 Dec 1969] 56994/70 Heading B3R A metal-plated thermoplastics member 1 e.g trim to be attached to a painted motor vehicle body panel 23, has a welding stud 12 partially inserted in a bore 4 in the member. The trim member 1 is attached to the panel by resistance projection welding in which a welding electrode is pressed against the plating 3 to force the point of the stud through any paint coating 24 on the panel 23 and welding current is conducted to the stud by the metal plating 3. During the welding process the stud not only fuses with the panel to form a weld 26 but also breaks through the plating 3 sinking further into the bore 4 and in so doing displaces molten thermoplastics material to form a sealing, corrosion-inhibiting ring 27 around the weld, the shank portion of the stud becoming firmly embedded within the thermoplastics material. The welding electrode is loaded against the trim member by forming an enclosure between the electrode and panel and evacuating the enclosure. The thermoplastics material may be acrylonitrile-butadienestyrene. The plating 3 may comprise successive layers of copper, nickel and chromium and the stud 12 is of low carbon steel. Current is supplied in two short bursts separated by a short cooling period the initial current being e.g. of the order of 5000 amps and the subsequent current burst of the order of 2000 amps the overall welding time being approximately two seconds.
Patent GB-1441289-A (GB)
Title: Milling machine knee clamp
IPC: B23C9/00
Filed: 1973-12-11
Abstract: 1441289 Beds and frames TEXTRON Inc 11 Dec 1973 [29 March 1973] 57313/73 Heading B3B In a milling machine having a column 10 with dovetail guides 15, a vertically adjustable work table 12 has ways 16 which engage the guides with clearance, and integral clamping portions 20, 21, on the table are adapted to be forced against the guides so as to take up the clearance and clamp the table in adjusted position on the column. Table 12 supports a saddle and cross slide 13, 14, and is moved vertically by a lead screw 18. Each of the clamping portions 20, 21, is formed by providing a pair of parallel slots 23, 23, in the side face of table 12, and the portion is deformed by a rod 30 actuated by a handle 36.
Patent GB-1199110-A (GB)
Title: Dioxolan Substituted Compounds
Inventor: HARDIE WALDO RICHARD
IPC: C07D317/28
Filed: 1967-09-05
Abstract: 1,199,110. Aminoalkyl - dioxolanes. CUTTER LABORATORIES Inc. 5 Dec., 1968 [5 Sept., 1967], No. 57641/68. Divided out of 1,197,313. Heading C2C. Novel compounds of formula (wherein n is 1-8, R is optionally substituted C 1-8  alkyl and R<SP>1</SP> is a C 5-15  substituent containing 1-3 optionally substituted carbocyclic rings) and acid addition salts thereof are prepared (a) by hydrolysis or hydrazinolysis of the corresponding 2 - R - 2 - R<SP>1</SP> - 4 - phthalimidomethyl-1,3-dioxolanes, or (b) by reducing the corresponding nitriles. 2 - Methyl - 2 - phenyl - 4 - phthalimidomethyl- 1,3-dioxolane is prepared from 3-chloro-1,2- propanediol or epichlorohydrin via 2-methyl-2- phenyl-4-chloromethyl-1,3-dioxolan. 2 - Ethyl - 2 - phenyl - 1,3 - dioxolan - 4 - ylacetonitrile is prepared from 3,4-dihydroxybutyronitrile and 1 -phenyl-1,1-dipropoxypropane. Compounds of the above formula and their pharmaceutically acceptable acid addition salts are stated to affect the cardiovascular and central nervous system and may be made up with carriers into pharmaceutical compositions for oral and parenteral administration.
Patent GB-1375848-A (GB)
IPC: A61F6/14
Filed: 1971-12-13
Abstract: 1375848 Intra-uterine contraceptive devices R GAUD 13 Dec 1971 [15 Dec 1970] 57868/71 Heading ASR An intra-uterine contraceptive device comprises two pairs of resilient curved stems 4 having free ends 5 folded back on themselves, a resilient loop-shaped stem 6, and a hollow tube 1 of elliptical or oval cross-section, having a widened sleeve 3 at its upper end and windows 2 in its side wall, the other ends of the paired stems 4 being housed in the upper end of the tube and the loop having an enlargement 7. The loop 6 may be joined to two of the stems 4, or may be housed in the tube 1. The enlargement 7 may be cylindrical or ellipsoidal, and may be provided with a groove. Spermicidal cream or jelly having a pH of between 4.5 and 5 may be provided in the hollow tube, and a tongue 8 may be provided on the tube for stitching the device to the neck of the uterus. The device may be made from plastics material such as a polyamide, a polyester, a polyfluoroalkylene, or a polyolefin. The device may be introduced into the uterus by means of a pusher made from polystyrene.
Patent GB-1323619-A (GB)
Title: Process for preparing ethylene 1,2-dicarboxylic acid and derivative thereof
IPC: C07C51/14
Filed: 1971-12-14
Abstract: 1323619 Catalyst composition DENKI KAGAKU KOGYO KK 14 Dec 1971 [24 Dec 1970 (2)] 58072/71 Heading B1E [Also in Division C2] A catalyst comprising a palladium compound and an amino acid is used in the preparation of ethylene 1, 2-dicarboxylic acid or acyl derivatives thereof by reacting acetylene with carbon monoxide. A transition metal salt may be present as an activator. Palladium chloride, bromide, iodide, sulphonates, chlorate, halogenoacetates, nitrate and sulphate are mentioned and amino acids include aliphatic, oxyamino, aromatic, acidic amino, and basic amino acids. Nickel sulphite and bromide and ferric chloride may be present.
Patent GB-1207278-A (GB)
Title: Handle and trigger assembly for electrical apparatus
Inventor: NEMEJANSKI ARIANE SABINE
IPC: H01H9/06
Filed: 1968-12-06
Abstract: 1,207,278. Suction cleaners. A. S. NEMEJANSKI. 6 Dec., 1968 [8 Dec., 1967], No. 58125/68. Heading A4F. [Also in Division H1] In a handle and trigger assembly for an electrical apparatus, the trigger 11 is mounted within handle 10 and is of onepiece construction, and has portion 23 for engagement with an electrical contact 8 and a further more flexible portion 14 for engagement with the inside wall of handle 10 for biasing trigger 11 away from its withdrawn position, the arrangement being such that when handle 10 is gripped by an operator trigger 11 is withdrawn into handle 10 for operation of the apparatus. As shown, the invention is applied to a vacuum cleaner comprising batteries 6 mounted in casing 5 supplying through wire 7 and a switch composed of metallic strips 8 and 9, a motor 2 driving a fan 3. The dust bag and filter are mounted in the front part of the body 1, the dust bag being mountd on a threelegged removable framework (not shown) accessible through the removable end 1<SP>1</SP> of the body 1. An additional fan may be mounted on the other side of the motor. Trigger 11 is pivoted about point 12 and is biased clockwise by integral spring portion 14 so that integral projecting portion 23 holds portion 811 of resilient strip 8 away from strip 9. Portion 25 of trigger 11 projects below handle 10 and when gripped and withdrawn into handle 10 pivots trigger 11 anticlockwise allowing strip 8 to contact strip 9. When trigger 11 is released spring portion 14 pivots trigger 11 back again opening the switch. The trigger is constructed of a moulded plastics material.
Patent GB-1358890-A (GB)
Title: Charge coupled devices
IPC: H01L29/10
Filed: 1971-12-15
Abstract: 1358890 Telephone exchanges WESTERN ELECTRIC CO Inc 15 Dec 1971 [16 Dec 1970] 58214/71 Heading H4K [Also in Division H1] A charge coupled device in which charges are transferred from site to site at or adjacent the surface of a storage medium under the influence of a bias voltage, includes means whereby charges may be transferred through the medium to a site at the other surface of the storage medium. In a cross point switch information in the form of groups of charges incoming on any of transmission lines 1, 2 or 3 may be diverted to any of lines a, b or c by energizing the appropriate electrode, e.g. 1a or 2b or 3c so that charge is transferred through the storage medium to the storage sites at the other surface of the medium. The electrodes may be selectively energized from a control network 68.