baber/WOPTO huggingface dataset:
Patent GB-1464955-A (GB)
Title: Sewing machine and a method for the assembling of the same
IPC: D05B29/00
Filed: 1974-03-18
Abstract: 1464955 Sewing machine HUSOVARNA AB 18 March 1974 [16 March 1973 (3)] 11838/ 74 Heading D1G A sewing machine comprises a body having prepared seats to receive, as preassembled units, a presser foot and needle bar unit, a thread tension device and the top shaft. In a particular embodiment (Fig. 1, not shown) the frame, which is open on one side also accommodates stitch length and zig-zag control units (4, 5) not described in detail. The presser foot and needle bar unit Fig. 8, comprises a frame 16 slidable on a rod 18 received in the prepared seats and presenting a fixing lug 17 having slotted hole. The needle bar 38 is received in a holder 35 pivoted at its upper end to the frame 16 by an adjustable ball joint (43, Fig. 9 not shown) and controlled at its lower end by a rib 44 which co-operates with a cam 45 on the frame. The needle bar may be disconnected from its drive crank by sliding frame 16 along rod 18. A presser bar 46 of plate form is slidably supported on pins 47, 48 and urged downwards by a spring 49. A lug 54 co-operates with the cam edge 55 of a lever 50 pivoted at 51 to raise the bar. The thread tensioner unit comprises a frame 60 secured to the machine body at 61 and providing three plates 62-64 mounted on a fixed shaft 65 and biassed together by a spring 67 and a pressure rod 66 slidably mounted at 69 on a pin (9, Fig. 12 not shown). A follower pin 70 mounted on the rod 66 engages cam spiral 73 of an adjusting knob 74; the latter is rotated relatively to 8 scale to position rod 66 and set the bias exerted on the thread tension plates. A lever 68 is operable to remove the bias when necessary. The frame also mounts a thread guiding hook 78 and check spring 80.
Patent GB-870443-A (GB)
Title: Improvements in fish filleting machines
IPC: A22C25/00
Filed: 1960-04-04
Abstract: 870,443. Fish fillets; cutting off. KLOSTER, O., and KLOSTER, P. April 4, 1960, No. 11850/60. Class 28 (2). [Also in Group XXX] A headed and gutted fish laid on a bar 21 is conveyed, belly down by a pair of spiked conveyer chains 18 through pairs of knives which free the backbone and rib bones from the flesh. The fish is centred between spoons 48 and in its traverse operates a feeler 20 which releases means to allow a weight 1 to swing up a pair of disc knives 2 to slit the fish along the backbone from the end of the belly to the tail. Further traverse pushes the fish against knives 3 which slit down along each side of the backbone and also against a horizontal pair of knives 4 which free the ribs from the flesh. If the flesh fillets are not entirely freed from the bones by these cuts a further pair of knives 5 effect such release. The outgoing fillets then engage a feeler 30 which operates levers to allow a spring 49 to reset the frame 6 whereby the first knives 2 are pulled down and locked in position ready for release by the next fish. The sprockets carrying the conveyer chain 18 are turned in to close the chains against the fish tail by the upward movement of the frame 6. Pressure members 22 automatically move down to press the fish tail against the uprising cutters 2. The resilient plate 28 on which the fish rests has its front part lowered so that the fish tail is lowered on to the uprising knives 2. The conveyer chains 18 have downpointed pins 18<SP>1</SP> to press into the belly flaps and improve conveyance.
Patent GB-769958-A (GB)
Title: Improvements in or relating to synthetic resin coating compositions
IPC: C09D167/08
Filed: 1955-04-25
Abstract: A base for a coating composition is made by condensing (1) 20 to 35 per cent by weight of an alcohol-modified polymethylol N,N-dialkyl melamine obtained by reacting 1 mol. of an N,Ndialkyl melamine in which the alkyl groups are methyl, ethyl, n-propyl, isopropyl, n-butyl or sbutyl groups, at least 4 mols. of formaldehyde and at least 5 mols. of n-propanol, n-butanol, or s-butanol with (2) 80 to 65 per cent by weight of an oil-modified alkyd resin.  Curing catalysts for the composition are strong organic acids, e.g. p-toluene sulphonic acid, ethane sulphonic acid, trifluor acetic acid and heptafluoro butyric acid.  The alkyd resins are made by condensing a dicarboxylic acid, e.g. phthalic, succinic or adipic acid, if desired, in the presence of maleic acid with polyhydric alcohols comprising at least 25 per cent by weight of at least one alcohol containing at least 3 hydroxyl groups, e.g. glycerol, pentaerythritol, sorbitol or inositol and up to 75 per cent by weight of a dihydric alcohol, e.g. ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol and trimethylene glycol.  The alkyds are modified with fatty acids, many of which are specified, examples being lauric acid, myristic acid and coconut oil fatty acids.  In examples, a condensate from n-butanol, dimethyl melamine and formaldehyde was discharged into a reaction vessel with (a) a toluene solution of an alkyd resin derived from phthalic acid, glycerol and coconut oil fatty acids; (b) a xylene solution of an alkyd resin derived from phthalic acid, stearic acid, propylene glycol and pentaerythritol.  In each example, a solution of p-toluene sulphonic acid in isopropanol was added, the composition applied to chipboard and cured at 250 DEG  F.  The composition may be applied to many substrates, e.g. wood, metal, glass leather, "Cellophane" (Registered Trade Mark), films and sheets of plastic materials such as nylon, polymethacrylates and polyacrylates, textiles, paper and cardboard.
Patent GB-1118125-A (GB)
Title: Apparatus for the storing and handling of tool-holder plates for cutting presses
IPC: B23D35/00
Filed: 1966-03-18
Abstract: 1,118,125. Device for storing and transferring tool plates. V. BIANCHI. 18 March, 1966 [18 March, 1965], No. 12070/66. Heading A4T. [Also in Divisions B4 and B7] A device for storing and handling tool holder plates comprises a magazine formed of parallel channel-section slides 7a supporting the edges of the plates 3a-3c, the slides being carried by corner posts, 8a, 8b with screwed legs 10a, 10b rotated by motor 14 and chain 13 so that a selected plate may be raised to the level of slides 17a provided with rollers on a trolley 16 running on castors, the plate slid on to the trolley which is then moved to abut one side of a press and the plate is then fed automatically step by step through rollers to a position in the press where cutters on the plate may cut e.g. cloth. The plate may be locked on the trolley by spring loaded bolts released on abutting the press and the trolley may be guided and hydraulically locked to the press. The plates may be stored vertically in the magazine, in which case the trolley has a pair of retractable legs and a curved frame where the trolley rolls over to receive a vertical plate and then returns with the plate to the horizontal position.
Patent GB-114259-A (GB)
Title: Improvements in Incandescent Electric Lamp Holders.
Inventor: SALLES PIERRE MAX RAOUL
IPC: H01R33/46
Filed: 1917-08-23
Abstract: 114,259. Salles, P. M. R. Aug. 23, 1917. Binding-posts and terminals. - In a lampholder, each terminal consists of a spring- urged piston j retained bv a shoulder thereon in a cylinder i, the piston and cylinder having holes m which register, to allow insertion of the wire, only when the piston is depressed, so that the wires are clamped when the piston is released.
Patent GB-1525103-A (GB)
Title: Concentrating of polyvinylchloride emulsions
IPC: C25B9/17
Filed: 1976-07-19
Abstract: 1525103 Concentrating PVC emulsion ELECTRICITY COUNCIL 19 July 1976 [18 April 1975] 12130/78 Divided out of 1525102 Heading C7B P.V.C. emulsion is concentrated by electrophoretically attracting the solids to an anode 30 which may be located between cathodes 39 and covered by a porous non-conductive element 37 e.g. nylon, polypropylene, carbon fibre mesh or ceramic material and the deposited material removed via scraper 40. The anode may be in the form of a rotating cylinder 40 located within a tank 10 which is bottom fed and the excess removed via weir overflow 18.
Patent GB-178726-A (GB)
Title: Improvements in hand lamps of the kind used by railwaymen
IPC: F21L19/00
Filed: 1921-04-28
Abstract: 178,726. Linley, Ltd., S., and Wake, R. April 28, 1921. Lanterns, handles for. - In a railwayman's hand-lamp, the handle a is rigidly secured tn a dome-like part c which is attached to the head d of the lamp body in an insulating manner. Between depending lugs c<2> and the side c<4> of the part care secured brackets h rigidly secured to the head d. The upper ends of the brackets h and the side c<4> are provided with apertures into which fit the bosses i<2>, j<2> of the insulating washers i, j, the latter boss j<2> of the latter washer also fitting an aperture of a third insulating washer j, k. The brackets are secured to the lugs c<2> and part c<4> by a screw passing through an outer washer m.
Patent GB-567347-A (GB)
Title: Improvements relating to the operation of electric fuses
IPC: H01H85/46
Filed: 1943-07-27
Abstract: 567,347. Cut-out systems. BRITISH THOMSON-HOUSTON CO., Ltd., WELLINGS, J. G., and WITHERS, B. July 27, 1943, No. 12190. [Class 38 (v)] To enable a stouter fuse to be used in series with the high voltage winding 4 of a transformer, a relay 6 is adapted to connect the fuse 3 across a portion of the winding upon excess current conditions. A protective resistance 2 may be connected in series with the winding. According to the Provisional Specification, the invention may also be carried out by using a current transformer ; an electronic device may be used instead of a relay.
Patent GB-353020-A (GB)
Title: Improvements in or relating to signal transmission systems
IPC: H04M7/16
Filed: 1930-04-17
Abstract: 353,020. Modifying circuits to improve transmission. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.-(Assignees of Espenschied, L. ; 104, Newbold Place, Kew Gardens, New York, and Affel, H. A. ; 827, Morningside Road, Ridgewood, New Jersey, both in U.S.A.) April 17, 1930, No. 12193. Convention date, May 23, 1929. [Class 40 (iv).] A circuit for transmitting a very wide band of frequencies of the order of a million cycles, consists of two air-separated concentric hollow conductors 10, 12 (diameter say 2À5 and 0À7 inch and thickness 0À1 inch) spaced apart by low-loss washers 14 (say every 5 feet). A circuit of this sort has low skin effect, negligible leakage loss, and very small susceptibility to cross-talk or other disturbance, since there is no external electric field and very little external magnetic field. No external insulation is required, whether the circuit is used overhead or underground. Owing to the relatively low attenuation of high frequencies and the insusceptibility to line noise, repeater gains much higher than is customary may be employed. The very wide transmission band obtainable on this circuit may be devoted to television or may be subdivided into a large number of telephone carrier channels. Specification 284,005, [Class 36, Electricity, Conducting &c.], is referred to.
Patent GB-824183-A (GB)
Title: Ammonium nitrate gas-producing compositions
Inventor: HARPER AUBREY EDWARD
IPC: C06B23/00
Filed: 1956-04-21
Abstract: Pyridine dichromate is prepared by adding potassium dichromate solution to a solution of pyridine hydrochloride in excess hydrochloric acid.  Quinoline dichromate is prepared similarly. Chromium acetylacetonate is prepared by refluxing acetylacetone with chromium acetate in alcohol for eight hours.
Patent GB-749300-A (GB)
Title: Improvements in or relating to wave operated selective electric control system
Inventor: BARKER GEOFFREY CECIL
IPC: G01S7/36
Filed: 1945-05-16
Abstract: 749,300. Radio signalling ; radiolocation. MINISTER OF SUPPLY. May 16, 1945; No. 12369/45. Classes 40 (5) and 40 (7). In a pulse signalling system, control potentials are produced by means selectively responsive to the steepness of waveform of the applied signals. The arrangement is more particularly applicable to the combatting of jamming signals in radiolocation systems. Negative-going signal impulses are applied to the normally conductive stage V1 and similar pulses of opposite sign to the stage V2. The valve V2 is normally biased beyond cut-off by means of the cathode resistor R2. The conditions of the stages V1, V2, reverse in sequence with a time-interval determined by the steepness of the leading edge of the pulses. Time-intervals exceeding a predetermined amount permit the common anode-ground capacity of the stages V1, V2, to be charged through the resistance R1 to a sufficient potential to cause conduction in the valve V3. The valve V3 is normally biased beyond cut-off by means of the resistors R3, R4, and when made conductive depresses the potential of the suppressor grid of the valve V2, preventing conduction of the stage V2. Upon cessation of the incoming pulse the valve V1 becomes conductive, causing the valve V3 to be cut off, thus returning the conditions of the stages V1, V2, V3 to normal. As shown, the arrangement is applied to a pulse radiolocation system, in which the jamming impulses have edges which are less steep than those of the echo pulses. The control impulse developed in the anode circuit of the valve V3 is amplified in the stages V4, V5, and applied as a negative " blocking out " potential to the control electrode CE of the cathode-ray tube CRT. Protective diodes D1, D3, D5 prevent the appearance of positive potentials on the grids of the valves V1, V4 and V2 (suppressor grid) respectively, the diode D4 protecting the electrode CE and the diode D2 maintaining the control grid of the valve V2 positive with respect to ground. Operation of the system by noise voltages of high intensity but short duration may be avoided by biasing the valve V5 beyond cut-off by means of the resistors R3, R4 and by proper choice of time-constant for the circuit R6, R7, K5.
Patent GB-575955-A (GB)
Title: Improvement in lifting trucks
IPC: B62B3/06
Filed: 1944-06-29
Abstract: 575,955. Lifting trucks. TRIGGS, W. W. (Yale & Towne Manufacturing Co.). June 29, 1944, No. 12391. Addition to 575,926. [Class 78 (iii)] [Also in Group XXXII] The lifting truck of the parent Specification comprising rear lifting wheels 62 normally maintained spaced from the ground is modified in that the intermediate wheels 54 are mounted on the lifting platform instead of on the truck. The lifting platform 57 of U-shape is carried by a vertical member 26 having rollers riding in channel uprights 16 and is operated by a hydraulic ram controlled by pedals 75, 80. Rollers 50 on the member 26 co-operate with cams 20 pivoted at each side of the truck to lower the rear wheels 62 of the platform as the platform is raised, through connecting rods 23 and links 60. The intermediate wheels 54 are mounted directly on the member 26 which is pressed downwardly by springs 45 threaded on bolts 44 and acting between a channel bar 17 fixed to the uprights 16 and brackets 40 fixed. to the member 26. Nuts 48 on the bolts 44 determine the lowermost position of the lifting platform. When the ram is operated to elevate the platforms 57 the wheels 54 are immediately raised against the action of the spring 45 ; the cam 20 is therefore shaped to give rapid lowering of the rear wheels 62 to the ground to prevent undue tilting of the truck. A stop 60a on the link 60 limits the upward movement of the rear wheels 62. Specification 563,748, [Group XXXI], also is referred to.
Patent GB-1420826-A (GB)
Title: Lubricants containing heterocyclic polymer
IPC: C10M169/00
Filed: 1973-03-15
Abstract: 1420826 Lubricating oil compositions OROBIS Ltd 20 May 1974 [15 March 1973] 12406/73 Heading C5F A lubricant composition comprises a mineral or synthetic oil base, a dispersant which is a derivative of a hydrocarbyl substituted succinic acid, and a polymer of a heterocyclic N-vinyl monomer containing a group in the ring in which polymer at least 25% of the monomeric units are alkylated with an alkyl or halogenated alkyl group or chain of at least 10 carbon atoms. In examples a polymer of an alkylated polyvinyl pyrollidone is incorporated in SAE 10W/30 and 20W/50 oils comprising a mineral oil, a polyisobutylene viscosity index improver, polyisobutenyl succinimide, carbonated calcium alkyl phenate derived from a sulphurized C 12 -alkyl phenate, a zinc dialkyl phosphorodithioate salt of phosphorodithioc acid prepared by treatment of mixed octyl alcohols with P 2 S 5 .
Patent GB-311271-A (GB)
IPC: C01G45/02
Filed: 1929-04-22
Abstract: 311,271. I. G. Farbenindustrie Akt.- Ges. May 8, 1928, [Convention date]. Manganese dioxide containing from 90-100 per cent MnO2 is produced by heating manganese carbonate or bicarbonate or a mixture of the two to 250-600‹ C. in the presence of excess oxygen under a higher partial pressure than that of the oxygen in air at atmospheric pressure. Alternatively, the product obtained by roasting manganese carbonate in air at 250-450‹ C. may be used in the process. Oxygen or air enriched with oxygen may be used at atmospheric pressure at 250-500‹ C., or air enriched with oxygen at elevated pressure at 250-600‹ C. Decomposition may be effected in a heated tube by a countercurrent stream of gas, and the latter may flow round a closed circuit comprising means to extract carbon dioxide, steam, or other undesired gases, and means for replenishing the supply of oxygen. Alternatively a pressure vessel may be employed. In examples manganese carbonate or a mixture thereof with the bicarbonate precipitated by sodium carbonate or ammonium carbonate or bicarbonate is treated at pressures of 1-100 atmospheres and temperatures of 270-550‹ C.; and an air roasted product containing 57.3 per cent MnO2 is oxidized at 500‹ C. under a pressure of 25 atmospheres.
Patent GB-636796-A (GB)
Title: Electric generating plant
IPC: F01K23/10
Filed: 1948-05-06
Abstract: 636,796. Air and steam turbine plant. INTERNATIONAL COMBUSTION, Ltd., and DAVIS, R. F. May 6, 1948, No. 12500: [Class 110(iii)] An electric generator P is driven by a hot air turbine L for which compressed air is supplied by a pump D driven by a steam turbine C. The air is heated in a furnace N after passing through a coil J in the furnace flue and an exhaust-gas heat-exchanger K. The air exhausted from the turbine L passes, in part, to the furnace N and, in part, to a feed-water heater M. Steam generated in boiler A is superheated in coil B and used in turbine C. The exhaust passes to condensor G and the condensate is forced by a pump H through an inter-stage cooler of the pump D. It then passes to the feed-water heater M and a heater E in the boiler flue. Air for the boiler furnace is heated at F in the boiler fiue. In starting, the turbine L is byepassed at Q until the steam turbine C is running at speed to provide sufficient air for operating the turbine L. The supply of fuel to furnace N may be automatically regulated in response to the temperature of the outgoing air.
Patent GB-1148429-A (GB)
Title: Improvements in bobbins
Inventor: HAI YUEN TAK
IPC: B65H75/10
Filed: 1968-03-14
Abstract: 1,148,429. Injection moulding bobbins. YUEN TAK HAI, SHAO CHEN TAI, and CHIU KEI. 14 March, 1968, No. 12503/68. Heading B5A. [Also in Division B8] In a method of making a cotton spinning bobbin comprising a hollow body part 5 and a seat part 9, the parts 5, 9 are premoulded from thermoplastics material and then located in a mould, their contacting faces are locally heated and a ring 14 is injection moulded in situ so as to surround and become fused to both parts. The ring 14 is keyed to both parts by means of annular V-shaped grooves 15. The seat and body parts may be injection moulded from polypropylene and snap together by means of an annular hooked flange 12 and recess. The parts 5 and 9 have integral tubular spigots 10 and (8) respectively.
Patent GB-815870-A (GB)
Title: Improvements in and relating to lung ventilating apparatus, more especially for anaesthesia purposes
IPC: A61M16/10
Filed: 1957-04-17
Abstract: 815,870. Respiratory apparatus. AIRSHIELDS Inc. April 17, 1957 [April 27, 1956], No. 12510/57. Class 81 (2). Anµsthetic apparatus in which a variable volume device with flexible walls is connected in the breathing circuit of an anµsthetic machine, the flexible walls being exposed in a variable pressure chamber to alternating negative and positive pressures, has a relief valve for allowing anµsthetic gas to pass from the variable volume device to the chamber when the pressure in the variable volume device exceeds that in the chamber by a predetermined amount, the relief valve comprising a closure member sealed by its weight on a valve seating and subjected from above to the pressure in the chamber and from below to the pressure in the variable volume device. A breathing bag 9 of the anµsthetic apparatus is located in a transparent chamber 10 in which alternating positive and negative pressures are produced by a bellows 12 operated by driving means and tuning mechanism (not shown). The chamber 10 has relief valves 14, 15 controlling the maximum positive and negative pressures respectively, in the chamber 10. Anµsthetic gas leaving the bag 9 passes to the patient through a duct 8. Between the bag 9 and the duct 8 is an assembly comprising a cover 22 mounted on a ring 20 supported by tubes 21 connecting a small chamber 23 below the cover 22 with the chamber 10. A disc 24 normally supported by the ring 20, separates the bag 9 from the small chamber 23. Normally, gas passes around the assembly between the bag 9 and the duct 8, but in the event of anµsthetic gas pressure in the breathing bag 9 exceeding the pressure in the chamber 10 by a predetermined amount, e.g. 1 cm. of water, the disc 24 is lifted to vent anµsthetic gas from the bag 9 to the chamber 10. A second breathing bag 5 for manual or emergency use is provided, a valve 7 serving to disconnect one of the bags 5, 9 from the anµsthetic circuit. Specification 781,747 is referred to.
Patent GB-1062114-A (GB)
Title: Optical objeetives
IPC: G02B13/00
Filed: 1964-03-25
Abstract: 1,062,114. Optical objectives. EASTMAN KODAK CO. March 25, 1964 [March 26, 1963], No. 12570/64. Heading G2J. A projection objective comprises a biconvex lens I spaced a distance S1 from a biconcave lens II, a meniscus positive lens III which is convex to the front, a biconvex lens IV spaced a distance S4 from a negative meniscus lens V which is concave to the front and a negative field flattener lens VI wherein 20 <S1/S4 < 40. Optical data are provided for two examples as shown.
Patent GB-235537-A (GB)
IPC: B23B39/16
Filed: 1925-05-14
Abstract: 235,537. Dusseldorfer Werkzeugmaschinenfabrik und Eisengiesserei Habersang und Zinzen Ges. June 12, 1924, [Convention date]. Drilling-machines. - The spindle-headstock guides of a multiple-spindle drilling-machine consist of a number of surfaces which are inclined to each other. The. guides 8 which are embraced bv the headstocks 7 are formed with surfaces 9, 10, the former converging towards the drill spindles and the latter away from them. Where the guides are horizontal the surfaces facilitate the escape of cuttings and water. The invention is also shown applied to a single head vertical drilling-machine.
Patent GB-107121-A (GB)
Title: Improvements in or appertaining to Decanting Apparatus.
Inventor: HART GEORGE ADAM
IPC: C02F1/52
Filed: 1916-09-07
Abstract: 107,121. Hart, G. A. Sept. 7, 1916. Sluice-gates.-In decanting-apparatus, more especially sewage and other tanks, in which the upper layers of liquid are run off through shutters of the kind comprising superposed bars a adapted to be raised' successively and connected together by links d allowing some free vertical movement between successive bars, two or more such shutters are arranged adjacent each other and command a common outlet and are operated in unison by gearing from a hand-wheel n. The gearing may comprise racks b<1> pivoted at g to the top section A of the shutter and pressed by rollers s into engagement with pinions on a shaft j connected by worm-gearing with the handwheel n. Counterweights r are connected to the shutters by chains p passing over pulleys o.