baber/WOPTO huggingface dataset:
Patent GB-1485823-A (GB)
Title: Battery charges
IPC: H02J7/00
Filed: 1975-06-02
Abstract: 1485823 Charging batteries; controlling rectifiers; protecting against overcurrent WALTER KIDDE & CO Ltd 2 June 1975 [19 April 1974] 17369/74 Headings H2H H2F and H2K A battery charger comprises a bridge rectifier for converting A.C. to D.C. to charge a battery B, the bridge rectifier including thyristors CSR1, CSR2, transistors TR1, TR2 for detecting the state of charge of the battery and trigger circuits responsive to the conduction of the transistors for varying the power supplied by the bridge in accordance with the state of charge of the battery. Each trigger circuit includes the collector-emitter path of the respective transistor TR1, TR2, a diode D3, D4 and a resistor capacitor network R1, R2, C1 or R3, R4, C2. When the battery voltage is low the transistors are fully conductive so that the thyristors are fired early in each half-cycle and the battery is charged at a high rate. As the battery voltage increases the conduction of the transistors decreases so that the thyristors are fired later in each half-cycle to reduce and finally cut-off the charging current. The rectifier provides a smoothed, unregulated output on a bus-bar 1 for loads such as alarms, ventilation shut down equipment or automatic door closing equipment and a regulated supply on a bus-bar 2 for control equipment such as ionization fire detectors. The regulator circuit includes an overload detecting relay RL2, the contacts RL2.1, RL2.2 of which open when an overload current due to a short circuit exists, to switch off a thyristor CSR3. A transistor TR3 is therefore turned off so that base bias is not supplied to transistors TR4-TR23. The regulated supply on the bus-bar 2 is therefore switched off. The supply is restored by depressing a reset switch SW1 to trigger the thyristor CSR3 and switch on the transistor TR3. A relay RL1 with bifilar windings responsive to the A.C. supply and the battery voltage respectively operates contacts RL1.1 to sound a bell, buzzer or flashing light if the battery or mains fails. The thyristors may be light activated.
Patent GB-1133182-A (GB)
Title: Electronic control system
IPC: H02P23/24
Filed: 1967-04-17
Abstract: 1,133,182. Touch operated circuits. W. RUOSS, and H. JENNY. 17 April, 1967 [15 April, 1966], No. 17512/67. Heading H3B. Vertically displaceable school blackboards driven by an electric motor are controlled by finger-contact-rails mounted along the bottom of the blackboard frame and connected to a transistor amplifier to energize the motor relay when the rails are bridged by a finger.
Patent GB-779929-A (GB)
Title: Method and apparatus for forming socket head screw blanks
IPC: B21K1/46
Filed: 1955-06-17
Abstract: 779,929. Forging socket - head screws. LAFLEUR, A. G., and MARECHAL, A. June 17, 1955 [June 28, 1954], No. 17583/55. Class 83 (4). A socket is formed in the head of an unthreaded screw blank by supporting the latter on the underface of its head only in a die 11, forming the socket by a punch 5 and then ejecting the socketed blank from the die by an ejector 15 which moves into contact with the inner end of the blank only after the punch begins to recede. The punch 5 is mounted on a reciprocating slider 3 actuated by an eccentric 6 on the main shaft 8. The latter carries a flywheel 43 and is driven through V-belts 42 from an electric motor. The headed blanks 14 are allowed to fall individually down a vertical feed channel 18, Fig. 5, adapted to be closed at its upper end by a sliding gate 17 connected to a slide member 26. The lower end of the channel 18 intersects a horizontal channel 19 aligned with the bore 13 of the die 11. The outlet end of this channel 19 is closable by a retractable stop 21, Fig. 6 (not shown). Spring- biased gripping fingers 24, 25 are pivotally mounted on the slide member 26 which is actuated by an axial cam 53 on the shaft 8, through a lever 47 and link 46. The cam profile is such that the fingers 24, 25 first grip the blank 14 whilst it is pressed against the stop 21; the latter is then withdrawn by means of a cam 55 on the shaft 8, through a rod 58, lever 62, shaft 63, lever 66 and rod 22 which carries the stop 21. Thereafter the fingers are again moved to feed the blank into alignment with the die bore into which it is pushed by the punch 5. After the socketing operation, the ejector 15 is actuated by a cam 71 on the shaft 8, through a pivoted link 73, rod 75, adjustable link 78 and lever 81. The rod 58 and the link 73 carry roller followers 56, 72 respectively which are held by springs against their respective cams 55, 71.. The sockets may be of cross-like, hexagon, or square section. The blank is subsequently screw threaded.
Patent GB-293195-A (GB)
Title: Improvements in furnace linings
IPC: F27D1/14
Filed: 1927-07-02
Abstract: 293,195. Wildish, H. W. July 2, 1927. Bricks for furnace linings are formed with an undercut cavity 2 to receive a bolt-head and communicating with the exterior only through a passage 3 leading to the back of the brick and adapted for passage of the bolt-head. The cavity 2 is preferably shaped, as shown in Fig. 2, so that the locking movement of the bolt is in one direction only. A slot 7 in the bolt end provides for turning the bolt and showing its position. Instead of the flat bolt-head several forms of V-head, such as that of Fig. 3, may be used. Cooling of the bolt, if required, is provided for by making the bolt hollow.
Patent GB-559343-A (GB)
Title: Improvements in or relating to compositions suitable for use as herbicides
Filed: 1942-12-14
Abstract: 559,343. Herbicidal compositions. RIPPER, W. E., and BARKER, C. H. Dec. 14, 1942, Nos. 17711/42 and 3634/43. [Class 81 (i)] A dry meltable composition, easily suspendible in water and intended for use as a herbicide comprises not less than 8 per cent of di-nitro orthocresol, a small proportion of wetting or dispersing agent and an ammonium salt or urea. Waste sulphite lye or molasses is suitable as a dispersing agent. The dinitro cresol may be ground with water and the dispersing agent and spray dried or otherwise dried at not above 50‹C or it may be melted with the dispersing agent and spray dried, the product in either case being mixed with the ammonium salt or urea in the proportion of 20 to 200 per cent of the weight of the dinitrocresol. Specifications 425,295, 537,186 and 559,580 are referred to.
Patent GB-972306-A (GB)
Title: Improvements in or relating to articles of furniture
IPC: A47B13/02
Filed: 1961-05-16
Abstract: 972,306. Cabinets; furniture joints. SOC. CIVILE DE RECHERCHES ET D'ETUDES INDUSTRIELLES. May 16, 1961 [May 16, 1960], No. 17836/61. Headings A4B, A4H and A4W. [Also in Division E2] An article of furniture inincludes a metal drawer unit consisting of one or more drawers located in a housing 21 mounted on a frame 1 provided with two slideways 3 extending across the frame and disposed in spaced parallel relation, each slideway having an opening 5 intermediate the ends thereof to permit the introduction into the slideway for location at or adjacent to an end thereof of a slider 6 secured to an element such as a leg 7 or castor on which the article is to stand, locking means 19 operable to lock the drawer or drawers of the unit in the closed position thereof, a cover 31 fixed above the housing and a lock 29 carried by the cover and co-operating with the locking means to effect actuation thereof. The or each drawer unit incorporates parallel slideways 16 having rollers 18 on which the or each drawer runs and the locking means is a sliding bolt which moves in a vertical slideway 20 formed on the inner face of one side of the housing 21, the bolt being provided at its upper end with a tongue 22 the free end of which is bent at right angles to the remainder of the bolt and at its bottom end with a second tongue 24 which is of L-shape. The tongue 24 can engage the tongue 22 of a bolt 19 of another drawer unit. Intermediate the ends of the bolt is a member 27 which co-operates in locking position with a protruding portion 28 provided on the drawer. When the bolt is raised the member 27 is raised out of the path of the portion 28. The lock in the cover comprises an angle member 30 having pivots at each end rotatable in bearings 32 and connected to a lock cylinder. The angle member co-operates with the tongue 22 of the or the top-most drawer unit; in the locking position the tongue 22 rests on a horizontal flange 34 of the member 30 and the member 30 is turned through a right angle so that the flange raises all the bolts 19. A notch is provided in one flange of the member 30 to facilitate its engagement with the tongue of the bolt. The frame 1 consists of two channel section members 2 and the slideways 3 which join the members 2 together. When legs 7 are used each consists of two channel section members welded together and their upper ends are welded to the slider 6 which consists of a plate 8 with flanges 9 at opposite edges. When in the correct position in the slideways the legs are bolted in position. When drawer units and covers are used for a desk the desk top rests on the covers.
Patent GB-111725-A (GB)
Title: Improvements in Carburetters for Explosion Engines.
Inventor: STAPLES JOHN SEWELL
IPC: F02M1/00
Filed: 1916-12-13
Abstract: 111,725. Staples, J. S. Dec. 13, 1916. Spray carburettors.-A carburettor comprises a main plate D having an aperture B<1>, a horizontal row of fuel orifices G<1> adjacent to the bottom of the aperture, a flat slide H movable horizontally over the fuel orifices, and a verticallymovable air-regulating slide K. In the form shown, the aperture B<1> is rectangular and its area is equal to or slightly larger than the sectional area of the induction pipe. The fuel orifices G<1> are formed by serrations in a plate G fitting against the main plate, which has a fuel duct F in its face. The slide H is of dovetail section and is held in close contact with the surface of the plates D, G by set-screws I bearing on an intermediate plate J. The carburettor may be heated by means of a jacket A and a conduit E for exhaust gases or hot water. If two fuels are employed, the supply from the two float chambers is controlled by needle valves a, b, Fig. 4, actuated by a lever d adapted to engage pins g on rocking links f, which are provided-with chains h connected to the needle heads.
Patent GB-613284-A (GB)
Title: Improvements in and relating to chairs or the like
IPC: A47C5/12
Filed: 1946-06-17
Abstract: 613,284. Chair frames. CHOULES, S. R. June 17, 1946. No. 18148. [Class 52 (ii)] A chair or the like comprises a main frame of tubular material formed to endless loop shape, which provides the back d, the front and side members c and b for the seat and rear supports a, and non-metallic arm rests h which are continued down to form the front legs i. Connections between the arm rests and the main frame are made at the lower part of the chair back and the front of the seat. Bracing members m and g are provided. The rear support a is shaped to allow limited rocking. Specification 485,887 is referred to.
Patent GB-222972-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01L5/06
Filed: 1923-07-13
Abstract: 222,972. Ricardo, H. R. July 13, 1923. Valves.-A supplementary charge of air, with or without an inert gas, or of a combustible charge weaker than the main charge. is introduced at the end of the. suction stroke through ports P controlled by a sleeve valve L, which also controls the main inlet port B and exhaust port C. Regulating.-A throttle E controlling the main inlet is connected by a link K to a throttle J controlling the supplementary charge, the arrangement being such that the latter throttle does not commence to cut off the supplementary charge until the former is partly closed.
Patent GB-476290-A (GB)
Title: Improvements in and relating to refrigerating machines
IPC: F25B39/02
Filed: 1937-06-30
Abstract: 476,290. Refrigerating. BRITISH THOMSON-HOUSTON CO., Ltd. June 30, 1937, No. 18193. Convention date, July 1, 1936. [Class 29] Evaporators.-A flooded evaporator for refrigerating- machines comprises a number of conduits 25 forming a freezing chamber, refrigerant being injected from a supply pipe 20 upwardly into one side of this chamber to cause circulation of the refrigerant through these conduits, while a relatively undisturbed body of refrigerant is maintained in a container 26 in communication with the lower portion of conduits 25. The temperature in conduits 25, owing to the circulation therein, is lower than that in the container 26. The portion 25 is enclosed in a heat insulated compartment 16 and serves to freeze water or desserts. The container 26 extends into a food storage compartment 17 which it cools, but, owing to its higher temperature, it does not tend to freeze the moisture out of the air to any great extent. Air circulation between compartments 16 and 17 is controlled by dampers 32 and 33.
Patent GB-613300-A (GB)
Title: Improvements in footwear
IPC: A43B13/12
Filed: 1946-07-18
Abstract: 613,300. Sandals; heels. TREASURE, F. L., and KAY, W. July 18, 1946, No. 18212. [Class 17 (ii)] A shoe, such as a sandal, comprises an upper 17 and an insole 10 to which a heel 11, which meets the insole only at the instep, is attached with the interposition of a wedge-shaped member 12 which extends from the back of the insole to leave a cavity 13 between the heel and the insole at the instep. The heel 11 may be chamfered as at 111 to lie in contact with the insole 10.
Patent GB-1430595-A (GB)
Title: Treatment of wool
IPC: D06M15/00
Filed: 1972-04-19
Abstract: 1430595 Shrinkproofing wool PRECISION PROCESSES (TEXTILES) LTD 11 April 1973 [19 April 1972] 18229/72 Heading D1P The shrink-resistance of wool is unproved by treatment in a continuous process with a single aqueous fluid containing an oxidising agent in an amount to reduce shrinkage in an amount of 5-80% compared with untreated wool, and a polymer having a plurality of cationic ionisable sites per molecule in an amount to deposit 0.1 to 2.0% by weight on the weight of the dry wool, so as to effect reaction of the oxidising agent on the wool and exhaust the polymeric substance on the wool. The oxidising agent may be acidified alkali metal di- or trichioroisocyanurate, alkali metal hypochlorite, an acidified solution of chlorine in water, mixtures of dichloroisocyanurate or hypochlorite with potassium permanganate or permonosulphuric acid, or permonosulphuric acid or alkali metal salts thereof, or potassium permanganate. The polymer must be soluble or dispersable, inert or stable to the oxidising solution and wetting agents, e.g. polyvinyl imidazoline, a polyamide cross-linked with epichlorolhydrin of functional group formula a polyamine, a polypropylene-polyamide of formula reacted with epichlorohydrin, polyvinyl pyridine, methlolation product of polyacrylamide, or a polyamide-epoxy adduct. The solution may contain stabilisers, e.g. amines, morpholine, caprolactam, fatty alcohol or glycol/ethylene oxide condensates, ethoxylates of wool waxderivatives or polyoxyethylene glycols. The solution may contain wetting agents, e.g. polyethyleneoxy-alkylphenols. The wool may be in the form of loose fibres, top, yarn, or knitted or woven fabric, and blends containing wool fibres. The wool may be treated by immersion and passing through nip rolls at 10-50‹C. The wool, after the shrink-resist treatment, may be washed, passed through a reducing bath of sodium sulphite and bisulphite, and rinsed.
Patent GB-334946-A (GB)
Title: Improvements in and relating to the mooring and anchoring of floating vessels or bodies
IPC: B63B21/50
Filed: 1929-06-13
Abstract: 334,946. Jensen, C. A., (Anthony, H. C.). June 13, 1929. Mooring.-A mooring device for ships, pontoons or floating bridges particularly suitable for positions where tidal variations are considerable comprises a heavy block k threaded on the mooring chain e between the ship and the anchor n and arranged so that the position of the block on the chain may be adjusted, the mooring chain being fitted inboard with screw stretching devices. The block is provided with chamfered surfaces around the central perforation and a number of mooring chains may be provided.
Patent GB-582878-A (GB)
Title: Improvements in resilient gear wheels
IPC: F16D3/76
Filed: 1944-09-25
Abstract: 582,878. Universal joints. WHITE, H. G., MIDDLETON, A., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Sept. 25, 1944, No. 18277. [Class 80 (ii)] A method of making a resilient gear-wheel having inner and outer concentric members and an interposed layer of rubber cushioning consists in first locating said members concentrically with a circumferential gap between them and then shifting one member relative to the other in a succession of different radial directions and inserting strips of rubber in each enlarged section of gap thus formed until the rubber extends all round the gap. Adhesion of the parts may be increased by the use of cement. Specification 408,724 is referred to.
Patent GB-871790-A (GB)
Title: A machine for addressing mailing envelopes or the like
Inventor: MUTH TOBIAS RICHARD
IPC: B41L45/00
Filed: 1958-06-07
Abstract: 871,790. Addressing machines. STROH, W. June 7, 1958, No. 18286/58. Class 100(2). An addressing machine comprises a pair of power-driven rollers 42, 43 carrying arcuate elastic pads 44, 45 respectively which press between them the envelope E to be printed and the address plate or card C, power driven means for feeding the envelopes to the rollers, and electro-mechanical means which automatically causes the rollers to rotate by a predetermined amount when the envelope being fed thereto reaches a predetermined positioned. Envelopes E are fed by gravity down a shoot S on to a pair of continuously driven conveyer belts 52 which advance them individually into the nip of rollers 65, 65 which feed the envelope on to a plate 58b. The roller 65 is supplied by rollers 63, 64 with a moistening liquid from a fountain 62a and transfers this to that portion of the upper surface of the envelope which passes beneath it. An address plate is fed by gravity down a shoot S<SP>1</SP> so that it falls face downwards on a plate 58 located above the plate 58b, the central portion of the card overlying an aperture 59 in the plate 58 and the leading edge there of in contact with the pad 45. As the envelope is fed by the rollers 65, 651 below the aperture 59 and into the nip of the pads 44, 45 on the cylinders 42, 43 it contacts a microswitch mounted on the plate 58 which engages a one revolution clutch in the drive to the roller 42. The envelope and plate are thus pressed between the pads 44, 45 and an image is transferred from the plate to the envelope. When the envelope and card emerge from the nip of the pads the former passes beneath the plate 58 where it is deflected into a container as at E<SP>11</SP> by a downward extension 69 of the plate, while the latter is fed along the top of the plate by a roller 61 which delivers it on to a second pair of conveyer belts 57. The drive to the roller 61 and the belts 57 is taken from the cylinder 43 which is driven by gearing from the cylinder 42 and hence is intermittent, depending upon the rate of feed of envelopes to the cylinders 42, 43. The belts 57 deliver the plates to a shoot 82 which directs them into a container.
Patent GB-946176-A (GB)
Title: Removable oven door
IPC: F24C15/02
Filed: 1962-05-11
Abstract: 946,176. Oven doors mechanism. TAPPAN CO. May 11,1962 [Oct. 10,1961], No. 18287/62. Headings E2F and E2M. [Also in Division F4] A removable drop down door of an oven has counter-balance mechanisms within the door, the oven door 12 comprising glass panels 12<SP>1</SP>, a closing mechanism engaging the catch 14, an outer wall 16, a door liner 17 and one counter-balance and support mechanism on each side of the door. Each mechanism has a U-shaped channel 18, a counter-balance tension spring 19 fixed at one end by a screw 20 and attached at the other to a bracket 21 which slides in the channel 18, a hinge pin 27 fitting in a slot 31 and a support lever 23 pivotally fixed to the bracket 21 and the pin 33. A latch bar may enter the slots 38 and 39, thus locking the bracket 21 when disconnecting the door. The pivot connections at 33 and 27 are formed with open cam hooks so that the door is easily releasable. Sealing means 15 are provided around the frame 13.
Patent GB-608495-A (GB)
Title: Electric rotor and method of making the same
IPC: H02K17/16
Filed: 1945-07-17
Abstract: 608,495. Dynamo-electric machines. PANCHER, H. E. July 17, 1945, No. 18327. [Class 35] Slot conductors are of less width than the slots in the laminated core they occupy except 'at one portion, e.g. in the slot mouths where they are a tight fit against the slot walls. In the form shown in Fig. 5, the squirrel-cage conductor D has reduced portions 6, 14, the latter being a good fit in the slot mouth to prevent circumferential movement of the rotor laminµ, which then have their peripheries turned down so that they are flush with the conductors. The bars and slots may be skewed and the ends of the bars pass through slots in the end rings on to which they are bent over and connected. The parts 24, 25, Fig. 11, of the bars may be cut away so that they only rest on the bottom of the slot at its centre, the parts 29 passing through the end rings.
Patent GB-398002-A (GB)
Title: Foam producing apparatus
IPC: B01F25/60
Filed: 1932-06-30
Abstract: 398,002. Centrifugal machines. DRYSDALE & CO., Ltd. and DRYSDALE, J. W. W., Bon-Accord Works, Ferry Road, Yoker, Glasgow. June 30, 1932, No. 18491. [Class 23.] An apparatus for producing foam by agitating a foam-forming liquid with a gas comprises a rotary inductor in the form of a liquid-ring pump for inducing inflow of the liquid and gas and exercising a preliminary churning and compressing effect, and a single or multi-stage compressor of the impulse type in series with the inductor for effecting further churning and compression. As shown, a shaft 4 carries the runner 1 of the liquid-ring pump and the impellers 2, 3 of a two-stage compressor of the type described in Specification 280,749, [Class 110 (i), Centrifugal and screw fans &c.]. The runner 1 operates in an eccentric chamber 7 provided with valved inlets 8, 9 for the liquid and gas. Ports 11 in the runner co-operate with suction and discharge ports 12, 13 in a fixed liner 14. The port 13 delivers to the inlet 16 of the first stage of the compressor. Foam is discharged at 17. The widths of the blades in succeeding stages of the compressor are reduced. The induction and compressor rotors may be mounted on separate shafts.
Patent GB-1398109-A (GB)
Title: Stamp affixer
IPC: B42D15/10
Filed: 1972-12-15
Abstract: 1398109 Stamp affixers DATA-LINK CORP 15 Dec 1972 [31 March 1972] 18581/74 Divided out of 1398108 Heading B8F The subject matter is as disclosed in Specification 1,398,108 but the claims relate to the feed rotor drive arrangement preventing overrun and reverse rotation of the rotor.