baber/WOPTO huggingface dataset:
Patent GB-739169-A (GB)
Title: Improvements in and relating to cutting and loading machines for mineral mining
IPC: E21C27/02
Filed: 1952-12-09
Abstract: 739,169. Mineral-mining machines. MACCARTHY, C. P. Dec. 4, 1953 [Dec. 9, 1952], No. 31147/52. Class 68(1).  The cutting means of a mineral-mining machine comprises one or more cutter bars projecting laterally of the body of the machine and a shearing jib, the pick-carrying, endless chain of which is positively connected to the cutter bar or bars so that it circulates about the jib frame on rotation of the cutter bar or bars. In the preferred embodiment identical cutting means are positioned at each end of the machine and consist of a cutter bar g at floor level, a cutter bar h above and behind the cutter bar g and a pick-carrying endless chain n<SP>1</SP> that is caused to circulate about the shearing jib n by a sprocket f<SP>1</SP>. at the end of the cutter bar f. Freed mineral is fed into a transverse, upwardly inclined conveyer c by ramps k on which are mounted the shearing jibs n. A scraper or screw conveyer is provided in the hollow leading end p of each ramp k to remove the gummings of the cutter bar g. The motors a, b can drive either separately or in unison one or the other of a pair of shafts separately mounted in the gear housings c, d and adapted to drive the adjacent cutter bars, the conveyer in the associated ramp and the conveyer e.
Patent GB-612719-A (GB)
Title: Improvements in or relating to air cleaners
IPC: F02M35/026
Filed: 1945-11-20
Abstract: 612,719. Air cleaners. TRIGGS, W. W. (Enblom, J. C.). Nov. 20, 1945, No. 31240. [Class 8 (ii)] Loss of liquid due to repeated rapid reversal of air flow through a two-way filter comprising a casing 3 having a sump 11 and upwardlydirected passages 9, 12 which are connected to atmosphere and an air compressor intake respectively, and have their open lower ends. draining into and located so near the sump that passing air transfers liquid from the sump is prevented by filling the cross-section of each of the passages 9, 12 to a substantial depth with an air-pervious liquid-intercepting mass. This mass comprises stacked corrugated woven wire screens 15, 15<1>, the latter being housed in a tube 9<1> which telescopes into the passage 9 to allow ready removal for cleaning in gasoline or other suitable solvent. In a modification, the air inlet passage entrance is formed as an arinular filter filled space surrounding an inverted liquid trapping cup of equal diameter to and coaxial with,the remainder of the inlet passage and draining into the sump. In a further modification, the inlet passage is annular and surrounds an annular outlet passage which in turn surrounds a tubular passage closed at its upper end and open at its lower end to the compressor intake.
Patent GB-263726-A (GB)
Title: Refuse collector or like machine
IPC: B65F3/08
Filed: 1926-05-01
Abstract: 263,726. Atia Corporation. Jan. 5, 1926, [Convention date]. Drawings to Speci. fication. Scavengers' carts.-Relates to a vehicle into which refuse &c. is delivered through a hood from a long tipping-bracket raised and lowered in guides at the side of the body. The invention may be applied to the tipping.cart with motordriven bucket-hoisting gear, described in Specification 263,666. The construction and operation of the bucket are as described in that Specification.
Patent GB-1298545-A (GB)
Title: A method of and apparatus for making calcium carbide
Inventor: ENYA RYOSUKE
IPC: C01B32/942
Filed: 1971-07-05
Abstract: 1298545 Calcium carbide R ENYA 5 July 1971 [10 Aug 1970] 31363/71 Heading C1A CaC 2  is prepared by heating a mixture of a carbonaceous and calcium material (e.g. CaCO 2 , CaO or Ca(OH) 2 ) with a hydrocarbon fuel gas- O 2 -mixture in an agitated vessel. The limestone 36 and the coke 37 in the vessel (1) are directly heated by the flame 38 of the gas mixture delivered by the injector 3 until the mixture 37 becomes white-hot. The inner surface wall of the vessel 1 is cooled by a curtain of compressed air (31) supplied by the annular tube 4. The horizontal eccentric movement of the vessel (1) causes mixing of the hot coke and, combined with continued gas heating, melts the limestone. The CO gas generated during the process is burnt by the additional oxygen curtain 39 provided by the injector 3. The fuel gas may be acetylene, propane or a heavy oil. In a modification a plurality of injectors are used and the vessel is supported on pneumatic, rubber bearings.
Patent GB-604481-A (GB)
Title: Improvements in or relating to machines for shredding and dispensing soap and like substances
IPC: C11D13/22
Filed: 1945-11-22
Abstract: 604,481. Making soap-shredding machines. VOORHIS-TIEBOUT CO., Inc. Nov. 22, 1945, No. 31460. Convention date, Sept. 14. [Class 83 (ii)] [Also in Group II] The rotary cylindrical cutter of a soap or like shredding machine is formed from a sheetmetal blank, the cutters 44 being stamped out to leave apertures for the passage of the shredded soap. The cutters are staggered in adjacent rows and slots 43 are provided to receive tongues 45 on the discs 35 which reinforce the ends of the cutter when it is bent into cylindrical form. The tube 36 is formed by bending sheet metal, one edge of the blank being turned radially outwards to form a key 37 which engages a slot 48 in each end disc. A tongue 38 is bent down from each disc to locate the discs on the tube.
Patent GB-230200-A (GB)
Title: Improvements relating to billiard and other like markers
IPC: A63D15/20
Filed: 1923-12-18
Abstract: 230,200. Madigan, H., Madigan, W., and Lupton, F. Dec. 18, 1923. No Patent granted (Sealing fee not paid). Scoring and marking apparatus.-A scoring device for marking games played on billiard tables comprises two curved strips of celluloid or other material, the upper strip a being marked with consecutive numerals from 0-20 and the lower strip b from 20-100 by twenties. The scores are indicated by pointers C, C<1> mounted on separate spindles c and held against undesired movement by spring-pressed washers c<1>. A number of these devices are mounted on a board E surrounded by advertising panels D.
Patent GB-895926-A (GB)
Title: Improvements in or relating to the purification of terephthalic acid
Filed: 1960-09-14
Abstract: Polyethylene terephthalate is prepared from terephthalic acid purified from nitro-compound impurities (see Group IV(b)).  In Example VIII a purified terephthalic acid was converted to bis(b -hydroxyethyl) terephthalate by reaction with ethylene oxide and this ester polymerized with an antimony trioxide catalyst. Specifications 655,074 and 786,987 are referred to.ALSO:Terephthalic acid containing nitro-compound impurities is purified by contacting an aqueous solution of the crude acid with activated carbon at 200 DEG C.-300 DEG C. under a pressure sufficient to maintain the water in the liquid phase, separating the solution from the carbon while maintaining said temperature and pressure conditions, cooling and separating crystallised terephthalic acid. The aqueous solution may contain a reducing agent such as sodium thiosulphate or bisulphite. The crude acid may be preliminarily subjected to temperature-controlled washing and/or crystallisation steps.  The aqueous solution may be passed through a column of activated carbon, for continuous operation. Specifications 655,074 and 786,987 are referred to.
Patent GB-536386-A (GB)
Title: Improvements in and relating to electric torches to be carried by the person
IPC: F21L14/00
Filed: 1939-12-08
Abstract: 536,386. Supporting and directing lamps. MANUEL, H. M., and DAVIDSON, G. M. Dec. 8, 1939, No. 31835. [Class 75 (iii)] A wrist strap or band 1 carries a lamp holder 4, terminals 10, 10a to which leads from a battery can be attached and a switch 15 connected between one terminal and the lampholder. A second switch is constituted by a metal tongue 14 secured to a portion of the strap separated from that carrying the lampholder by a slit 3 whereby movement of the wrist may cause an upstanding portion 14a of the tongue to make contact with the end terminal 11 of the lampholder.
Patent GB-472139-A (GB)
Title: Improvements relating to electric switches having arc-extinguishing arrangements
IPC: H01H33/76
Filed: 1936-11-23
Abstract: 472,139. Gas-blast switches. STRAUSS, (nee RUPPEL), F. Nov. 23, 1936, No. 32056. Convention date, Nov. 21, 1935. [Class 38 (v)] In a switch having provision for extinguishing the arc by a current of gas gener ated from the wall of the switch chamber by the heat of an arc or produced as the re sult of heating by the arc of gases already present, the gases flow out of the switch chamber into an ex. haust chamber connected with atmos. phere by apertures, of which the total crosssectional area amounts to not more than onehundredth that of the exhaust chamber so that the gases do not pass out to any material extent until after they have been cooled. In order to avoid undue gas pressure in the exhaust chamber, its volume is from 10 to 100 times that of the contact chamber and the gas passes into the chamber at the velocity of sound. The total cross-section of the apertures from the exhaust chamber is equal to, or smaller than, that of the passage in the tubular switch-chamber. In enclosed switchgear, the exhaust gas can be conducted to earthed parts through insulating tubes employed for switch-actuation. In Fig. 1, the movable contact rod 2 is shown in engagement with a fixed contact 1 in a chamber 5, which communicates with the blow-out chamber 6 by a tubular insulating body 3, the walls of which give off a gas under the heat of the arc. An insulating filling member 4 for retaining the arc in intimate engagement with the walls, is also connected to the rod 2. Gas exhausting from 3 first flows through cooling plates, cylinders, or tubes 15 offering little resistance to flow, but serving to reduce pressure by heatextraction. It then passes through a succession of apertures 16, 17 into pressurereducing chambers, and finally passes through apertures 20 gradually, by which time it is cool, deionized, and slowly-moving. In Fig. 3, the filling piece 4 is fixed and located in a tubular movable contact 2 urged by a spring 33 into closed position. A linkage system 29 .. 31 is operated to open the circuit at 1, 2, and when member 36 is engaged by member 35 on a spring-latch 32, the latter is diverted from a pin 28 on an extension 27 of 2, so allowing 2 to be returned by spring 33. The end of 30 is made as an isolating contact co-operating with the end 34 of pin 27, so producing an isolating gap in air. The gas produced by drawing the arc in the neighbourhood of the walls of tube 3 flow through 6, 15 and, passing through chamber 37, which contains cooling drivers, reaches outlets 20 which are covered by dirt-excluding flaps 38. Automatic circuit-breakers.-The switch shown in Fig. 1, is adapted for overload release, Fig. 2, by forming the contact structure 1 as latch members normally restraining the contact-piece 9 against the upward pressure of a spring 8. The latch members are themselves normally restrained against pivotal movement about 10 by ring armature 11 of a pot magnet, comprising a core 13, winding 12, and a yoke 14 extending upwards to serve as an arcing contact.
Patent GB-1041928-A (GB)
Title: Improvements in or relating to umbrellas, parasols and sunshades
IPC: A45B15/00
Filed: 1964-08-06
Abstract: 1,041,928. Umbrellas. G. L. M. SCOTT. July 28, 1965 [Aug. 6, 1964], No. 32110/64. Headings A4P and A4U. An umbrella or parasol comprises a shaft 1 of polygonal cross-section (Fig. 1, not shown) having aligned spring-urged detents 2, 3 and a separate, easily replaceable cover unit consisting of a runner sleeve 7 slidable on the shaft, stretchers 8 pivoted on the runner, a ring 10 detachably secured to a threaded extension 5 of the shaft by an internally threaded ferruled cap 12, and a cover 6 attached to the ribs 9 which are pivoted to the ring and to the stretchers. The runner has a slot 7a to accommodate the detents in open and closed positions of the umbrella, the detent 3 having a slot 4 which is engaged by a land between the proximal end of the runner and an end of the slot 7a to obviate the need for a stop arresting movement of the runner to open the umbrella. A tip cup 13, a name band, and handle 14 are fitted to the shaft. In modifications the crosssection of the shaft is of other non-circular shape, e.g. segmental, or the cap is secured by a bayonet connection.
Patent GB-1205710-A (GB)
Title: Quick drop valve for bulldozer blade hydraulic controls
IPC: E02F9/22
Filed: 1968-07-05
Abstract: 1,205,710. Bulldozers. CATERPILLAR TRACTOR CO. 5 July, 1968 [1 Aug., 1967], No 32148/68. Heading E1F. [Also in Division F2] A quick-drop valve for use with a doubleacting hydraulic jack controlling the elevation of a bulldozer blade comprises a spring-loaded valve member 31 which, when the blade is dropped by gravity, respond to the pressure differential across the restriction 29 in the valve passage 28 between the rod end of the jack and exhaust to partially connect the rod end to the opposite end of the jack by way of passage 39, the ports 41 in the valve member being in communication with both the passage 28 and the passage 39. When flow into the valve reaches a predetermined value corresponding to the jack approaching its end position sleeve 43 moves to abut an internal shoulder in the valve member ,to partially obstruct the ports 41 and pass a substantial part of the fluid from the rod end of the jack to the opposite end thereof.
Patent GB-1476205-A (GB)
Title: Hand tool for wrapping male threaded fittings
IPC: B25B27/00
Filed: 1974-07-19
Abstract: 1476205 Hand tool for wrapping tape on male threads GARLOCK Inc 19 July 1974 [1 Oct 1973] 32148/74 Headings B8G and B8M To wrap a male thread of a fitting with a tape using a portable hand tool having a case, a roll of tape mounted in the case, a rotatable threaded support roller mounted on the case, and means for manually clamping the thread against the roller, the thread is manually clamped against the roller, and end of the tape is fed into the nip between the thread and roller by manual movement of a lever, and the case and fitting are relatively rotated. The term "threaded" as applied to the support roller is defined as including circumferential grooves lying in parallel plane. To use the tool described, Fig. 4, the core 60 of a roll 18 of PTFE tape is mounted on spindle 66 of casing 12 so that core gear teeth engage gear 72 which engages feed roller 74. The tape end is threaded, Fig. 1, about guide post 76 and roller 74 at least to cutter 86. Cover 14 is then closed, two pins 102 on shaft 100 engaging two opposed core grooves 94. Casing handle 20 and handle 30 pivoted at 32 to the casing are then closed to place the tool on the male thread of fitting 22, and the handles are released so that spring 34 urges threaded rollers 26, 28 towards threaded support roller 24 to clamp the fitting. To eliminate tension in the tape before winding, lever 98 is rotated against spring bias along groove 110 to rotate the spool via shaft 100 and feed tape to form tape reserves at 62 and immediately before roller 24. Upon tool rotation, tape is gripped between roller 24 and the thread, and wound about the thread. During rotation, the tape is subject to constant tension due to spring 92 engaging the tape reel, and due to spring 90 acting on gear 72. The tape is pressed on to roller 74 by spring 78 which may be lifted by rotation of eccentric 84. The tape is cut by blade 86 moved by pivoted handle 120. Support 38 carrying roller 26 may be locked in the upper position for bigger threads. The thread of roller 24 has grooves extending axially of the roller. A tape viewing window 126 is provided in the casing. Alternatively, Fig. 6, for hollow threads the tool has threaded roller 132, threaded roller 134, and internal elastomeric clamping roller 136.
Patent GB-1188864-A (GB)
Title: Method for the Manufacturing of a Solid State Circuit Adaptable as H.F. Tuner.
IPC: H01L27/07
Filed: 1968-07-05
Abstract: 1,188,864. Semi-conductor devices. ITT INDUSTRIES Inc. 5 July, 1968 [6 July, 1967], No. 32207/68. Heading H1K. A method of manufacturing an integrated circuit with at least one high-frequency transistor and one diode comprises producing by planar diffusion a low-resistivity first island 5 of N+type conductivity on a P-type conductivity substrate 4 of high resistivity, then applying epitaxially a thin layer of N-type semi-conductor material, then producing a ring 6 of N+type conductivity material within the marginal area of the first island, and then applying epitaxially a further layer of N-type semi-conductor material to complete the epitaxial region 3 within which dopants are diffused to produce the diode junction 7 and the base-collector junction 10 and emitter-base junction 14 of the transistor. A contact 8 is alloyed into the body to contact the low resistivity N+type region 5, 6. The semiconductor may be of silicon. In the case of N- type silicon, boron is used to form the diode. The circuit may be used as an H.F. tuner. Further devices, such as switching diodes, may be included in the circuit, when zones are provided to isolate them by virtue of reverse biased PN junctions.
Patent GB-817591-A (GB)
Title: Improvements in and relating to gas turbine plants
Inventor: HRYNISZAK WALDEMAR
IPC: F02C5/08
Filed: 1954-11-08
Abstract: 817,591. Gas-turbine plant; axial and radial flow compressors. PARSONS & CO. Ltd., C. A. Oct. 21, 1955 [Nov. 8, 1954], No. 32228/54. Classes 110 (1) and 110 (3). A vehicle gas-turbine plant comprising a turbine and two compressors has the turbine directly coupled to one of the compressors, the second compressor and the output shaft of the vehicle being connected to the turbine through a differential gear. A turbine b drives a highpressure compressor, c by means of a shaft c1 which terminates in a pinion d forming part of an epicyclic differential gear a. Planet wheels e of the epicyclic gear are connected by a carrier f to the output shaft. The sun wheel g is connected to the low-pressure compressor h. The gas turbine is started by a motor i driving the sun wheel g through a pinion j. In a modification, the low-pressure compressor is driven directly by the turbine and the highpressure compressor by two epicyclic gears. In this arrangement the sun wheel g is connected to the input pinion of a second epicyclic gear, the planet wheel carrier of which is connected to the high-pressure compressor. Brakes or clutches associated with the sun wheel of the second epicyclic gear may be used to vary the speed of the high-pressure compressor. Both compressors may be of the axial or radial flow type or one may be axial flow and the other radial flow.
Patent GB-263803-A (GB)
Title: Improvements in or relating to electrical high frequency transmitters
IPC: H04B1/04
Filed: 1926-12-21
Abstract: 263,803. Lorenz Akt.-Ges. C. Dec. 24, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Thermionic amplifiers.-In order to prevent fluctuations in the supply voltage to the main power valve, or fortuitous alterations in aerial tuning, from affecting the frequency of the control oscillator, one or more tuned amplifying valves 2 are interposed between the constantfrequency oscillator 1 and the last power unit 3. The intervalve couplings comprise inductances 16, 17 and variable capacities 19, 20. Grid leaks 23, 24 are inserted across the input circuits of valves 2 and 3. The amplifiers are preferably graded in size from the control to the last power stage.
Patent GB-1469136-A (GB)
Title: Phosphonates and their use as plant growth regulants
IPC: C07F9/40
Filed: 1974-07-22
Abstract: 1469136 Plant growth regulant E I DU PONT DE NEMOURS & CO 22 July 1974 [23 July 1973 (2) 17 Sept 1973 30 May 1974 (2)] 32383/74 Heading C1B [Also in Division C2] Compounds which are used as plant growth regulants have the Formulae I and II where M is H or a non-phytotoxic cation; provided that when the compound has Formula I, M is not H; R is M, C 1-8  alkyl optionally substituted by Cl, Br, F or I, C 3-8  alkenyl or benzyl optionally having one or two substituents selected from Cl and CH 3 ; R 5  is C 1-6  alkyl, C 3  or C 4  alkenyl or benzyl; X is O or S; and Y is O or S; provided that when Y is S, X is S; and when X is S, R is not H. Compounds of Formulae III and IV where R 6  is M or R 5  and Z is O or S, provided that (a) when Z is S, R is not H and R 6  is not M, (b) when R 6  is M, R or M is not H, and (c) when both R and R 6  are M and Z is O, M is not H, Zn, Mn, Na, Cu, Pb or Ag, are claimed per se. Compounds of Formula I may be prepared by hydrolysing a corresponding ester (the carboxylic group may also be in the form of an amide) and optionally replacing the cation M by ion exchange. The invention also includes a plant growth regulant composition comprising an inert diluent and a compound of Formulae I or II which is not a simple solution of said compound in water or an organic solvent in which it could have been prepared.
Patent GB-506278-A (GB)
Title: Improvements in and relating to the springing of chairs, settees and other furniture
IPC: A47C7/34
Filed: 1937-11-24
Abstract: 506,278. Spring -surfaces. DAL. TREY, A. Nov. 24, 1937, No. 32389. [Class 52 (iv)] Upholstery springs 14 are mounted at the intersections of resilient metal strips 11, 12, the strips extending in one direction being secured to the surrounding frame 23 by tension springs 15 and the upper ends of the upholstery springs being attached to a wire mesh 17.
Patent GB-364726-A (GB)
Title: Type-writing machine for accountancy work
IPC: B41J11/48
Filed: 1930-10-29
Abstract: 364,726. Typewriters. MERZ, F. C. J., and MERZ, J. G. K., (trading as MERZWERKE, GEB.-MERZ), 42, Eschborner Landstrasse, R÷delheim, Frankfort-on-Main, Germany.) Oct. 29, 1930, No. 32495. Convention date, Nov. 2, 1929. [Class 100 (iv).] Paper-supports sheet feeding and guiding arrangements.-The roller-platen frame of a type-lever machine is replaced by a plate which is provided with a platen and sheet-feeding arrangements and can be moved rearwardly until it is behind the rear wall of the typewriter. When the plate is in the rear position, the sheets are assembled on the plate in the relative positions required for condensed billing, and the plate is then returned to the normal position. In the apparatus shown in Fig. 2, the roller-platen frame is replaced by a frame comprising arched side-plates h which are detachably connected to rocking arms d on the carriage e and have a cross-rod g resting on the shift roller f. A plate p, connected by rocking arms l, k to the side plates, is formed at the bottom with a curved platen pl arranged above an apron m on the side plates, the gap being adjustable by means of an eccentric n. A roller platen may replace the platen p<1>. Feedrollers o<1> for the sheets x are carried by a shaft o which is mounted on the plate and can be turned by means of knobs. The feedrollers co-operate with rollers o<3> on spring- urged arms o<4>. The sheets have marginal perforations for engaging sprockets q, Fig. 4, on the shaft. A detent s co-operates with a ratchet-wheel r to hold the shaft. The sheets are held on the plate by means of pivoted fingers t, and a strip m<1> secured to rocking arms m<2>. Before the sheets are assembled, the plate is swung rearwardly until it is behind the rear wall of the typewriter, the position being determined by stops l<2>, h<1>. After the sheets have been passed over the plate, they are assembled in the required relative positions by the aid of the sprockets q, and are gripped by the 'feed-rollers. The plate is then returned into the normal position, the lower ends of the sheets resting on the apron m. Marginal perforations in the sheets may be omitted, the feed-rollers or retractable pins being employed for holding the sheets after they have been assembled. Ink-ribbon mechanism.-A duplicating inkribbon, guided along the printing line, is wound on spools v, Fig. 2, mounted on a shaft v<1> on the plate p, one of the spools having a ratchetwheel v<3> co-operating with a pawl v<4> operated by the feed-roller detent s.