baber/WOPTO huggingface dataset:
Patent GB-808337-A (GB)
Title: Welding machine for plastic sheet material
IPC: B29C65/02
Filed: 1957-07-24
Abstract: 808,337. Securing non-metallic sheet materials. CARRARO, A. July 24, 1957 [July 24, 1956], No. 23511(57. Class 42 (1). Plastic material wound on a drum 8 is welded by means of a pressure or welding element 22 which is pivoted above the drum and is lowered to contact the drum and accompany the drum in its movement for an angle corresponding to the length of sheet material between two successive welding operations. As shown, the welding element 22 is pivoted in a toothed sector 31 pivoted on the same shaft 32 in which is mounted the drum 8. The motor which drives the drum 8 also rotates cams 14, 15. Cam 15 through levers 17, 19 causes the element 22 to drop against the drum and cam 14 causes the sector 31 to rotate by means of a rack 24 and gears 27, 28, 29, 30, so that the welding element accompanies the material to be welded during the whole time of welding.
Patent GB-1210291-A (GB)
Title: Metal to metal joints
Inventor: HAWORTH LIONEL
IPC: F16L23/20
Filed: 1968-05-17
Abstract: 1,210,291. Jointing. ROLLS-ROYCE Ltd. 16 May, 1969 [17 May, 1968], No. 23515/68. Heading B3V. [Also in Division F2] In a shrink-fit joint between a member 13 and a member 14 having a lower elastic limit the members are respectively cooled below and heated above ambient temperature and interfitted so that an interference fit occurs between the members; a cylindrical surface 22 of the member 13 plastically deforms the surface 23 of the member 14 and also comes into contact with at least part of the diverging frustoconical surface 24 of the member 14.
Patent GB-1272891-A (GB)
Title: Power unit for operating horticultural or agricultural machines or tools
Inventor: CELLI ALFREDO
IPC: A01D69/00
Filed: 1970-05-15
Abstract: 1,272,891. Portable engines. A. CELLI. 15 May, 1970 [16 May, 1969; 11 April, 1970], No. 23577/70. Heading B7H. [Also in Divisions A1, E2 and F1] A portable power unit for operating a horticultural or agricultural machine or tool, comprises an I.C. engine 9, Fig. 1, and a selectively engageable speed reducer 15 arranged in the transmission between the engine and the output shaft (19), Fig. 3 (not shown), of the unit. The unit also includes a tubular-metal frame 2 supporting the engine and having attachment means 40, 43 for co-operation with attachment means 37, 38 on the machine or tool. Moreover, the frame has a carrying handle 3 and a socket 4 for attachment of an extension handle (5). The engine is connected to the speed reducer 15 via a centrifugal clutch (10), Figs. 3 and 4 (not shown), and a toothed belt and pulley arrangement (11, 12, 13). Various applications of the power unit include a rotary hoe, a lawnmower, a mobile sprayer, a mobile centrifugal pump assembly and a mobile powered hedge-trimmer, Figs. 7 to 11 (not shown) respectively.
Patent GB-278512-A (GB)
Title: Improvements in or relating to vehicle wheel rims adapted to carry pneumatic tyres
IPC: B60B21/02
Filed: 1926-09-24
Abstract: 278,512. India Rubber, Gutta Percha, & Telgraph Works Co., Ltd., and Avery, W. L. Sept. 24,1926. Rims, such as the kind described in Specification 103,868, comprising side channels A<1>, A<2> and transverse ties B, are stiffened by forming the side walls A<4>, A<5> with corrugations or embossments C extending across the circumferential lines of the ties. The rim shown is also provided with perforated bosses D for the attachment of wind shields.
Patent GB-719510-A (GB)
Title: Improvements in or relating to regenerative furnaces
IPC: F28D17/00
Filed: 1952-09-19
Abstract: 719,510. Heating air; furnace regenerators. HINGST, R. Sept. 19, 1952 [Sept. 20, 1951; Oct. 20, 1951], No. 23599/52. Classes 64(1) and 64(3) In a reversible, glass-melting or other regenerative furnace in which reversal of the flow of gases through the furnace 1 and its associated regenerators 3, 5 is obtained by reversing the direction of delivery of the blowers 8, 12 arranged in the ducts 6, 9 connecting the regenerators to the external atmosphere, the combustion air is preheated by steam or hot water before. entry into the regenerators 3, 5. In the form shown, heat from the gases leaving one regenerator is transferred to the air entering the other regenerator by water circulated from a drum 13 by a pump 15 through heat-exchangers 7, 10; steam is generated in one heat-exchanger either before or after heat is given up to the air in the other. To reverse the gas flow, the fan motors 24, 25 or the fan blades are reversed in their action. The speed of the blower withdrawing hot gases is greater than that of the blower. delivering air.
Patent GB-862480-A (GB)
Title: Improvements in or relating to amplifiers
Inventor: WELLS FRANK HERBERT
IPC: G06G7/24
Filed: 1958-07-23
Abstract: 862,480. Logarithmic valve amplifiers. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. July 14, 1959 [July 23, 1958], No. 23793/58. Class 40(6) [Also in Group XXXVI] A logarithmic pulse-amplifier comprises a plurality of cascade connected stages of equal gain arranged to limit with equal input voltage, each stage including two valves connected in a long-tailed pair circuit with the second of the valves connected to the grid of the first valve of the succeeding pair and with the anode of the first valve of the pair connected to a common output load, means being provided for adjusting the standing potentials of the anodes of each of the second valves and for catching the anode potential at a fixed value when the pulse is applied. Fig. 4 shows four long-tailed pair stages with the output of the second valve of each stage connected to the input of the first of the succeeding stage and with the anodes of the first valves connected to a common output terminal. The standing potential at the anodes of the second valves is adjusted to a value of 170 volts by their respective grid potentiometers A, B, C and D and catcher diodes are connected to the anodes and to a 150 volt supply. As the input signal increases the final valve is first driven to a point at which the catcher diode becomes effective, then valve 17, 15 and 13 in succession so that the overall amplifier characteristic approximates to logarithmic form. The Provisional Specification also describes an alternative circuit, not in accordance with the invention, shown in Fig. 3. Negative going input pulses are applied via terminal 9<SP>1</SP> and a preamplifier stage 1 to three identical stages 2, 3, 4 in cascade, each comprising two electron multiplier valves. Outputs from the dynode of the first valve of the stages 2, 3 and 4 and from the dynode of valve V1 are applied through respective amplifier valves V8-V11 to points on a delay line so that the delay in each stage is matched by a corresponding delay in the line, whereby all pulses add at the output in phase. As the input voltage increases, a level is reached where the dynode current of valve V6 cuts off followed by levels where the corresponding valve in stages 3, 2 and 1 cut off in succession, the result being that the output amplitude at terminal 11<SP>1</SP> is substantially proportional to the logarithm of the input amplitude. Some departure from the true relation results from the gain of the first stage being somewhat different from that of the other stages.
Patent GB-416181-A (GB)
Title: Improvements in or in connection with pianos and piano pedals
IPC: G10C3/14
Filed: 1933-08-28
Abstract: 416,181. Pianofortes. BRETT, S. R., 146, Forest Hill Road, Forest Hill, London. Aug. 28, 1933, No. 23827. [Class 88 (ii).] Piano-pedals 3 act through pairs of cords 6, 7, levers 14 and push-rods 21 to raise the rear ends of the note-keys 24 to sound a note and its octave, the cords being guided by pulleys 8, 10. The levers 14 are pivotally supported by looped cords 15 from adjustably-fixed brackets 17 which also guide the push-rods 21. The latter act on the keys 24 through felted pads 23. The cords 6, 7 are connected with each pedal through an adjustable hook 5, and the pulleys 10 are adjustable for position. If the note-keys 24 dc not project sufficiently far over the pads 23, blocks may be secured to the keys.
Patent GB-196859-A (GB)
Title: Improvements in underground pulley frames or hangers for suspending and guiding the haulage ropes of colliery and the like trams
IPC: E21F17/02
Filed: 1922-09-02
Abstract: 196,859. Morris, W. Sept. 2, 1922. Rope railways and tramways.-A hanger for suspending and guiding the tail part of the haulage ropes in mines is swivalled and spring-supported from the roof. In the illustrated form, the hook on a two-part adjustable bracket g engages the eye d<2> of a bolt on which a pulley-carrying stirrup c is swivelled. A spring e is interposed between the head of the bolt and the stirrup. The tail rope l is maintained in contact with the supporting pulley a by a gua.rd roller k. A short non- adjustable bracket replaces the two-part bracket for use in low passages.
Patent GB-1184655-A (GB)
Title: A Rotary Ball Valve.
Inventor: MOORE MICHAEL MOSES
IPC: F16K5/06
Filed: 1966-05-27
Abstract: 1,184,655. Valves; brakes. HIGH TEMPERATURE ENGS. Ltd. 30 May, 1967 [27 May, 1966], No. 23989/66. Headings F2E and F2V. A rotary bath valve has seats for the ball, each seat consisting of a ring 12 of relatively rigid material such as P.T.F.E. which engages the ball, and a second ring 11 of elastomeric material which urges the first ring against the ball. The first ring has a chamfer 15 next to the ball and a circle of contact B between the two rings is of greater diameter than a contact circle A against the ball. Fluid trapped in the chamber 14 can escape past the ring 12 if it expands by rise of temperature. The ball is driven by an electric motor (16) Figs. 3 and 4 (not shown), through gearing consisting of a worm and wheel (17, 18) . The wheel is rotatable on a drive shaft (24) coupled to the ball and carries a pinion 19 geared to a layshaft (21) in turn geared to a quadrant (23) on the drive shaft. Diametrically opposite the quadrant is a nose 25 which operates micro-switches (26, 27) to stop the motor at the open and shut positions of the valve. The drive is further arrested by a brake, in that a loose ball (29, Fig. 4) carried by an arm (37) on the drive shaft, is pressed by a fixed cam surface (32) on to the wheel (18) so as to deform this wheel resiliently into frictional engagement with a housing (33) of the layshaft.
Patent GB-832282-A (GB)
Title: Improvements in or relating to apparatus for manufacturing chains
Inventor: SINCLAIR JAMES MCGREGOR
IPC: B21L3/02
Filed: 1957-07-29
Abstract: 832,282. Welding chains by pressure. RESISTANCE WELDERS Ltd. July 9, 1958 [July 29, 1957], No. 23999/57. Class 83 (4). In apparatus for making chains with flash butt welded links wherein the chains are supported during manufacture on a rotatable carrier supporting a number of chains and rotated step-by-step to present each chain successively to each of a number of machines 33, 35, 36, 37 disposed in circular array about the carrier for carrying out operations thereon, the rotatable carrier comprises a turntable 10 carrying a number of angularly spaced upstanding members each adapted to carry a chain and the chain being supported so that one end hangs downwardly beyond the periphery of the turntable and the chain extends inwardly from the hanging end so that it is fed inwardly towards the axis of the turntable and gathered on the turntable or in a container carried thereby. In one embodiment, the turntable 10 is supported by rollers 13 thereon running on a circular track 14 in a pit 11 and is rotated by a driven wheel 15 engaging teeth 16 on its periphery or by a cable around the table. The upstanding members on the table are formed by four sets of vertical posts 18 with horizontal beams 19. Between the beams 19 on each member are two grooved wheels 23, 24 supporting the cable, the inner wheel 24 being driven intermittently by a rack engaging a pinion connected to the wheel by a one-way clutch. The rack is carried on a vertical rod whose lower end projects through the turntable and carries a roller co-operating with a cam fixed to the floor of the pit to be lifted once during each revolution of the table. The machines about the table are a hot bender 33 adjacent a furnace 34, a flash butt welder 35, a flash trimmer 36 and a studding machine 37 and in operation the table is moved in steps to bring each cable opposite each machine and at the end of four steps each chain is fed inwardly and collected on the turntable at 39. In a modification the turntable has four pairs of track rails 47, Fig. 6, fixed thereto and spaced 90 degrees, each track carrying a four-wheeled truck 48 normally anchored to a pillar 51 and having a beam 49 carrying inner and outer wheels 52, 53 for supporting a chain, the wheel 52 being rotated by a compressed air, piston and cylinder device 54 acting through a ratchet and operated automatically. The turntable is rotated step-bystep to bring each truck opposite each machine and the wheels 52 are turned once during each table revolution, the chain being collected in the trucks. Each truck when full is released from the pillar and run off the table on to a track outside the table to be replaced by an empty truck.
Patent GB-207874-A (GB)
Title: Improvements in or relating to the construction & assembly of rapidly demountable sectional boilers, generators, superheaters or the like
IPC: F28F9/26
Filed: 1922-09-06
Abstract: 207,874. Benson, M. Sept. 6, 1922. Butt joints.-The sections of a steam or other vapour generator, superheater, cooler, condenser, or the like are held in position and kept pressure tight by hydraulic or other fluid presses. The sections a, Fig. 1, of a steam generator are held in tight connection by hydraulic presses w having plungers t, Fig. 4, acted upon by the discharge from the feed pump. The cylinders of the presses have jackets in which the feed-water is heated. The sections may consist of flattened corrugated or indented tubes, or of plates, or they may be cast. A metal having a high tensile strength such as nickel chromium alloy is used in the construction of the sections. End pieces h' and distance pieces h are welded to the ends of the sections.
Patent GB-1123644-A (GB)
Title: Improvements in carburettors for internal combustion engines
Inventor: MENNESSON ANDRE LOUIS
IPC: F02M5/10
Filed: 1967-05-24
Abstract: 1,123,644. Carburetters. SOC. INDUSTRIELLE DE BREVETS ET D'ETUDES. May 24, 1967 [June 30, 1966], No.24188/67. Heading F1B. In a carburetter comprising an inclined well 1 supplied with fuel through its lower portion and with air through a plunger tube 3 which is coaxial with and inside this well and has perforations 4 in its lateral wall and a jet duct 5 running from a zone in the well above the normal level of fuel in the well and ending at a jet outlet 6 in the carburetter intake duct 7 this jet duct being adapted to discharge the primary mixture of air and fuel formed in the well under the influence of the under-pressure prevailing in the intake duct, in a zone between the normal fuel level N and the beginning of the jet duct, a ventilation duct 17 is connected to the inclined well leading up in a substantially vertical direction. The upper portion of the ventilation duct may end in a duct connecting a constant level chamber to an air inlet of the carburetter or in a constantlevel chamber, or may lead to atmosphere.
Patent GB-392795-A (GB)
Title: Tube cutting device
IPC: B23D21/14
Filed: 1932-08-30
Abstract: 392,795. Internal tube cutters. ARMSTRONG, R., 930, Slocum Avenue, Ridgefield, New Jersey, U.S.A. Aug. 30, 1932, No. 24195. [Class 83 (iv).] A rotary tool for insertion in a tube 28 to cut it from within comprises a head 40 rotatable in a screwed box 20, and a pivoted cutting member 42 adapted to be radially expanded within a slot in the head by a collar 48 which is moved axially in the box by a helicallymovable handle 24 connected to a screw 52 loosely engaging the collar. In the form shown, a shaft 21 rotated within the box 20 carries the head 40 which is inserted in the tube to be cut and carries cutting tools 42, 43 mounted on scissor-like arms 45 expandable through longitudinal slots in the head. The rear ends of the arms 45 pass through holes in the collar 48, which can rotate within the screw 52 that is movable within the threaded box 20 by the handle 24. Movement of the handle in a helical groove 25 in the box serves to expand and contract the cutting tools for feeding and withdrawal purposes. The shaft 21 is filled with a thrust collar 37 and the rotating parts are lubricated through passages 60, 62. The front portion of the tool can accommodate heads of various sizes. Specification 329,203, [Class 61 (iii), Wrenches &c.], is referred to.
Patent GB-1169740-A (GB)
Title: Pharmaceutical Compositions Comprising A-nor-5alpha-Gonanes
Inventor: JACQUES JEAN
IPC: A61K31/568
Filed: 1966-10-20
Abstract: 1,169,740. Compositions comprising steroids. MERCK & CO. Inc. 20 Oct., 1966, No. 24284/69. Divided out of 1,169,739. Addition to 1,169,739. Heading A5B. Pharmaceutical compositions comprise a diluent or carrier and a compound of the general formula: wherein R 1  is H or Me; and each of Z and Z, is C 1-6  alkyl or haloalkyl or a C 2-6  alkenyl, alkynyl, haloalkenyl or haloalkynyl. They are stated to be useful for the control of estrus in mammals.
Patent GB-1343062-A (GB)
Title: Process for manufacturing rayon paper or non-woven fabric
IPC: D21H13/02
Filed: 1971-04-19
Abstract: 1343062 Paper and non-woven fabrics TACHIKAWA RESEARCH INSTITUTE 19 April 1971 [22 Jan 1970] 24354/71 Headings D1P and D2B In the manufacture of paper or non-woven fabrics from an aqueous dispersion of staple fibres or filaments of incompletely regenerated cellulose obtained by the viscose process, the water used to form the dispersion has a "converted salt concentration" of from 5 to 100 ppm. By "converted salt concentration" M.W. CaCO 3  is meant concentration of salt (ppm)X - M.W. salt The required "converted salt concentration" may be obtained by adding one or more salts of Mg, Ca, Zn, and/or Cd to tap water or softened water. The paper or non-woven fabric is made by wet-laying the aqueous fibrous dispersion. The wet-laid sheet may be treated with hot acid, e.g. H 2 So 4 , and Na 2 S, desulphurised, bleached, e.g. with NaClO, and dried.
Patent GB-955807-A (GB)
Title: Preparation of catalytic materials, and use thereof in alkylation and polymerisation reactions
IPC: C07C2/68
Filed: 1959-07-15
Abstract: An activated magnesium and halogen-containing complex (see Division B1) is used as a catalyst for the alkylation of halogenated aromatic hydrocarbons such as phenyl chloride. Specification 955,806 is referred to.ALSO:An activated magnesium and halogen-containing complex-used as a catalyst for the polymerization of aliphatic or aromatic olefins is prepared by a process in which an organomagnesium compound of formulae R2Mg, RMgHal or R3Mg2Hal or intermediate formulae is reacted with a halide or halogen e.g. benzyl, butyl, t-butyl and dodecyl chlorides, CBr4, CCl4, HBr, HCl, Br2, Cl2 or TiCl4.  In the general formulae, R is alkyl, aryl, aralkyl or alkaryl and Hal if halogen, preferably Cl.  The said complex is one which when added to or prepared in 2 moles toluene+1 mole t-butyl chloride in not more than 5 equivalents % based on t-butyl chloride, leads at 30 DEG C. to the evolution of at least 0.75 moles HCl within 1 hour. Specified monomers are ethylene, propylene, butylenes, hexene-1, decene-1, octadecene-1 and styrene. The examples describe the polymerization of diisobutylene and isoprene. Specification 955,806 is referred to.ALSO:Aromatic hydrocarbons are alkylated, aliphatic or aromatic olefins are polymerized and alkylbenzenes isomerized, using as catalyst an activated magnesium and halogen-containing complex (see Division B1). Specified compounds which may be alkylated are benzene, toluene, xylenes, naphthalene, anthracene; specified monomers are ethylene, propylene, butylene, hexene-1, decene-1, octadecene-1 and styrene. The examples describe the butylation and propylation of toluene and the polymerization of diisobutylene and isoprene.  Specification 955,806 is referred to.ALSO:An activated magnesium and halogen-containing complex-used as a catalyst for the alkylation of aromatic hydrocarbons or halogenated aromatic hydrocarbons, for the polymerization of aliphatic or aromatic olefins or for isomerizing alkyl benzenes-is prepared by a process in which an organomagnesium compound of formulae R2Mg,RMgHal or R3Mg2Hal or intermediate formulae is reacted with a halide or halogen, e.g. benzyl, butyl, t-butyl and dodecyl chlorides, CBr4, CCl4, HBr, HCl, Br2, Cl2 or TiCl4.  In the general formulae, R is alkyl, aryl, aralkyl or alkaryl and Hal is halogen, preferably Cl.  The said complex is one which when added to or prepared in 2 moles toluene + 1 mole t-butyl chloride in not more than 5 equivalents per cent based on t-butyl chloride, leads at 30  DEG C. to the evolution of at least 0,75 moles HCl within one hour.  Specification 955,806 is referred to.
Patent GB-715873-A (GB)
Title: Improvements in or relating to thread suction devices for spinning frames and the like
IPC: D01H11/00
Filed: 1952-09-29
Abstract: 715,873. Suction end-catchers for spinning &c. machines. BUHLER-KRAYER, H. Sept. 29, 1952 [Sept. 28, 1951], No. 24390/52. Classes 120(2) and 120(3) Thread suction apparatus for spinning and twisting machines comprises a flat suction nozzle 6 terminating in a slot and extending over a plurality of spinning or twisting stations. The nozzle forms part of a suction duct 4 communicating with a fan 10. Preferably, the housing 4 is disposed between the supply bobbins 2 of a double-sided machine and extends at the bottom along the machine for a distance covering many spindles. Side portions 5 lead from the housing 4 to the vicinity of the threads and, by reason of the width of their openings, are capable of drawing in dust and the like from a large area. It is stated that, where clearer rollers are employed, the air current may feed broken ends to the rollers.
Patent GB-1368347-A (GB)
Title: Control flap arrangement for aircraft
IPC: B64C3/54
Filed: 1972-05-24
Abstract: 1368347 Aircraft control flap arrangement VEREINIGTE FLUGTECHNISCHE WERKE-FOKKER GmbH 24 May 1972 [26 May 1971] 24548/72 Heading B7G An aircraft control flap arrangement comprises a control flap 2 pivoted to an aerofoil 1 and a partial flap 3 pivoted to the flap 2, such that the flap 3 may be pivoted in one direction, Fig. 6, to provide an air flow gap 5 between the flaps, or the flaps may be pivoted together in the opposite direction, Fig. 5, to provide a gap 4 between the aerofoil and the flap 2, but no gap between the flaps 2 and 3. These positive and negative flap deflections are produced by extension of hydraulic actuator 18 or 19 respectively. Alternatively, Fig. 10, and Figs. 11, 12 (not shown) there may be a single actuator 23 whose rod 35 is connected to one end of a lever 26, pivoted to the flap 2, whose other end is connected to an arm on the flap 3; retraction or extension of the actuator produces respectively positive (Fig. 12) or negative (Fig. 11) flap deflection.  (For Figures see next column.)
Patent GB-181279-A (GB)
Title: Improvements in potato washing and cleaning machines
IPC: A23N12/02
Filed: 1921-09-16
Abstract: 181,279. Nuttall, J. Sept. 16, 1921. Washing potatoes. - In potato washing and cleaning machines wherein the drum 1 is mounted on a cranked arm 7 pivotally mounted on the trough 10 in which the drum is rotated when in operation and from which it is raised for emptying, ball bearings are provided for the drum spindle 2. The inner ring 4 of the race is mounted on the shaft 2, and the outer ring 5 is retained in the bossed end of the arm 7, between the flange 11 and plate 12. In a modification, the outer ring is held by a U-shaped strap the limbs of which are connected by a bolt, flanges being provided on the outer ring to prevent lateral movement. The bossed end may be made separately from the arm 7 and secured there:o by bolts.