baber/WOPTO huggingface dataset:
Patent GB-357477-A (GB)
Title: Improvements in optical squares
IPC: G02B5/09
Filed: 1931-03-09
Abstract: 357,477. Optical squares. ZEISS, C. [Firm of], Carl-Zeiss-Strasse, Jena, Germany. March 9, 1931, No. 7207. Convention date, March 13, 1930. [Class 97 (i).] In an optical square consisting of reflecting glass &c. plates f secured to a support a, tensions in the glass plates due to temperature changes are avoided by providing each plate on at least one of its edges with feet k formed integrally with the plate and connected thereto by resilient necks i. In mounting the reflectors the feet k are clamped between the support a and plates g. When the device forms part of a measuring instrument such as a rangefinder the support a may be provided with a foot c by which it is fixed to the instrument, this foot being joined to the support by a part d of reduced diameter. Specification 6917/10, [Class 97 (i), Optical systems &c.], is referred to.
Patent GB-700351-A (GB)
Title: Improvements in or relating to the manufacture of derivatives of 21-hydroxy-pregnene-(5)-ol-(3)-one-(20)
IPC: C07J5/00
Filed: 1950-03-22
Abstract: Esters of 21 - hydroxy - pregnene - (5) - ol - (3) - one - (20) are obtained by reacting 21-iodopregnene - (5) - ol - (3) - one - (20) of the formula <FORM:0700351/IV(b)/1> with a salt of an aliphatic carboxylic acid in a water-miscible solvent at a neutral to weakly acid reaction.  As salt of the aliphatic carboxylic acid there may be used an alkali acetate. Specification 700,344 is referred to.
Patent GB-291549-A (GB)
Title: Improvements in or relating to soles of or for boots and shoes and to means for producing them
IPC: A43D8/34
Filed: 1927-03-16
Abstract: 291,549. Gimson Shoe Machinery Co., Ltd., and Bagshaw, C. M. March 16, 1927. Splitting-machines. -The heel end of a sole for the reception of a Louis heel is provided with. tapered side fins N which, on the finished shoe, lie in the plane of the sole. The tongue T is bulged through a form plate with a front tapered edge which cooperates with a tapered transverse bar extension of the plunger. On actuation of the knife a rounded tapered fin N is left attached to the sole. Specification 281,787 is referred to.
Patent GB-899110-A (GB)
Title: Control rings for circular knitting machines
IPC: D04B15/32
Filed: 1960-03-02
Abstract: 899,110. Knitting-machines. SCHUBERT & SALZER MASCHINENFABRIK A.G. March 2, 1960 [July 17, 1959], No. 7353/60. Class 74 (2). Cam surfaces 11 on a ring 1 controlling yarn guides 2 or cams 6 at feeds I-IV, bring the guides or cams into operation in a desired sequence as the ring is stepped around its axis by the steps S0-S4 of a cam on a control drum 5. The durations of the phases S0-S4 depend on the lengths t0-t4.
Patent GB-1321784-A (GB)
Title: Handoperated slicing cutter mechanism
IPC: B26D7/01
Filed: 1972-02-17
Abstract: 1321784 Hand-operated slicing apparatus K ZYSSET & CO A G 17 Feb 1972 [1 March 1971] 7384/72 Heading A4C [Also in Division B4] A hand-operated slicing apparatus comprises a flexible cutting blade mounted in a support member 1, a guide member 2 having a contact surface 8 for sliding over the surface of the material, the guide member being adjustably mounted on the support member by means of pinions 9a on a shaft 9 engaging with racks 2d thereby enabling the spacing between the blade and the contact surface 8 to be varied. The support member which, together with the guide member, may be moulded from plastics material, is formed with portions 1a, 1b between which the blade is tensioned by means of an adjusting rut 7. The guide member 2 is provided with webs 2a adapted to slide in  grooves if formed in the support member. The shaft 9 is rotatable by a handwheel 13 provided with knurling 13 and graduations 14 for co-operation with an index line 15. The guide member is held in its various settings by means of spring-loaded pawls 11, Fig.3, engaging recesses 10 formed in the guide member.
Patent GB-1486858-A (GB)
Title: Loading and unloading system for ships
IPC: B63B27/16
Filed: 1975-02-21
Abstract: 1486858 Loading ships by a platform elevator; container traffic; mobile elevator MACGREGOR INTERNATIONAL SA 21 Feb 1975 [22 Feb 1974] 7391/75 Headings B8E B8L and B8Q A platform or other elevator apparatus 14 on a ship 1 has platforms 25, 26 raisable and lowerable in upper guides 21, 22 and lower guides 34, 35 by winches 30, 31. The guides 21, 22, are mounted on a base 12 by a shaft 15 about which the housing 16 can be rotated. The base 12 and all that is mounted on it can be pivoted from the operative position Fig. 1 by a jack 42 to a horizontal position, Fig. 2 below a hatch cover 11. The upper part 35b of the guide 35 moves with the base 12 while the guide 34 is pivoted about a trunnion 37 to the inboard position shown. In other embodiments the apparatus, Fig. 6, may be pivotally mounted on a carriage 335 running on a track 343 to be positioned opposite guides 334, 335 of different holds or may be lifted between an operative pivot base block and an inoperative block below deck. In some examples the outer guide 334 may be permanently fixed in a recess 361, Fig. 6, in the ship's side 2 or may be fixed externally of the side. With upper guides thwartship, Fig. 1, and in line with the lower guides the outer guides are located outside the ship so that the outer platform 26 can be lowered to a stop 38 to pick up a pallet or other article or container from a pier 46 while the inner platform 25 can be lowered to pick up or deposit goods on any deck 3-5. With both platforms raised on to the upper guides the apparatus can be rotated about the axis 13 to allow the platforms 25, 26 to transfer their loads to the desired position on the pier or in the ship. Safety devices prevent operations occurring when any part is in an incorrect position such as turning the apparatus 14 when either platform is on a lower guide.
Patent GB-1026213-A (GB)
Title: Improvements in or relating to iodineí¬131
Inventor: HATZOPOULOS ELIE
IPC: G21G1/02
Filed: 1963-02-25
Abstract: 1,026,213. Preparation of radioisotopes. COMMISSARIAT A L'ENERGIE ATOMIQUE. Feb. 25, 1963 [March 7, 1962], No. 7518/63. Heading G6R. Iodine-131 is prepared by neutron irradiation of an oxygen-containing compound of tellurium, treatment of the product with a solution of an alkaline earth hydroxide to form a precipitate of a tellurite or tellurate, and heating the solution to crystallize the precipitate and liberate iodine which is recovered by distillation. The tellurium compounds specified are tellurium dioxide and telluric acid; after irradiation, the compound is treated with barium hydroxide solution and heated, for example to boiling point for one hour. The precipitate is removed and the solution treated with hydrogen peroxide to oxidize residual tellurium. Sulphuric acid is then added, followed by an alkali metal iodide plus an alkali metal iodate or periodate to form iodine for entraining the I-131. Radio-active iodine is then obtained by distilling the solution and collecting the distillate in caustic soda solution.
Patent GB-683110-A (GB)
Title: An improved reactive power meter
IPC: G01R11/48
Filed: 1951-04-02
Abstract: 683,110. Supply meters. LANDIS & GYR AKT.-GES. April 2, 1951 [April 15, 1950], No. 7602/51. Class 37. A reactive power meter has a fixed resistance 5 in series with the voltage coil 4 and an adjustable shunt resistance 6 in parallel with the current coil 3. The shunt resistance 6 is bent into one or more loops, on one of which is a short-circuiting bridge 7 which can be moved along the loop and fixed by a clamping screw 8. The shunt resistance 6 is so adjusted that the rotary disc of the meter rotates at the standard rate corresponding to the constants of the meter. The resistances 5, 6 are made as practically non-inductive resistances to minimize dependence on frequency.
Patent GB-1528713-A (GB)
Title: N-(mercaptoacyl)-histidine
IPC: C07D233/54
Filed: 1977-02-23
Abstract: 1528713 N-mercaptoacyl-histidines SANTEN PHARMACEUTICAL CO Ltd 23 Feb 1977 [16 March 1976] 07624/77 Heading C2C Novel N-(mercaptoacetyl)histidine(I) or N-(2- mercaptopropionyl)histidine(II) are prepared by reducing the corresponding novel S-benzoyl derivative (III) which is obtained by reacting histidine wtih a halogeno-C 2-3  acyl halide followed by reaction with an alkali metal salt of thiobenzoic acid. Compounds I, II and III decrease lipid levels in blood or the liver. Compounds I and II form with a carrier a pharmaceutical composition which may be administered orally or parenterally.
Patent GB-365397-A (GB)
Title: Improvements in or relating to clutch mechanisms
IPC: F16D23/06
Filed: 1931-03-12
Abstract: 365,397. Operating friction and positive clutches. SULZER FR’RES SOC. ANON., Winterthur, Switzerland. March 12, 1931, No. 7703. Convention date, March 14, 1930. [Class 80 (ii).] The operating- gear for combined non - positive and positive clutches is provided with locking-means preventing engagement of the non-positive clutch under load and further locking-means preventing engagement of the positive clutch while the difference of speed between the driving and driven shafts exceeds a predetermined amounts A drum 2, 3 secured to a driving-shaft 1 carries one member 4 of an electromagnetic friction clutch, the other member 15 of which slides in axial grooves in a part 9 secured to the driven shaft 7 and carries a disc 17 and a flange 16 surrounded by the stationary energizing coil 12, the members 9, 17 being separated by springs 20. The driving member 28 of the positive clutch is connected to the drum flange 3 by rubber buffers 30 and has notches 26 so disposed as to be engaged always by certain of the sliding bolts 25 carried by the driven member 8. The bolts 25 are thrown into engagement by spring-pressed rods 36 acting through rockers 33, when permitted by withdrawal of the coned end 86 of an actuating-rod 22. On closing a manual switch (not shown), the winding 12 is energized through leads 77, 78, Fig. 3, provided that contacts 71 have not been opened by a fluid-pressure device 68 responsive to load, such as a pump, on the driven shaft. When the shafts 1, 7 are in substantial synchronism, a belt-driven governor 66 closes contacts 72 in the leads 62, 63 of a solenoid 59 to cause retraction of a spring- pressed bolt 58 from beneath a collar 57, so freeing a lever-operated piston-valve 52 controlling the flow of pressure-fluid from a pipe 50 to a servomotor 41. When, as shown, the lever 80 is raised, the servomotor piston 40 is moved from the position A to the position B, first compressing a spring 83 behind a collar 42 on the rod 22 and then tripping a trigger 45 to shoot the rod 22 to the left and sharply engage the positive clutch. On applying load to the driven shaft, the contacts 71 open, so restoring the locking-bolt 58 and de-energizing the winding 12. To declutch, the load is first taken off, so withdrawing the bolt 58, the valve 52 is raised to reverse the piston 40, which acts through a similar spring 87 and trigger 46 on a collar 43 to cause sudden retraction of the clutch-bolts 25, and finally the manual switch is opened to throw out the friction clutch and restore the bolt 58 beneath the collar 57. As the contacts 71, 72 are both in the circuit of the solenoid 59, the positive clutch cannot be engaged before the friction clutch or disengaged under load.
Patent GB-753687-A (GB)
Title: Electronic circuit adapted to assume a number of stable conditions
IPC: H03K23/82
Filed: 1954-03-17
Abstract: 753,687. Multi-stable state circuits. EBAUCHES SOC. ANON. March 17, 1954 [June 4, 1953], No. 7718/54. Class 40 (6). A multi-stable state circuit comprises an odd number (greater than one) of electronic control devices, for example, discharge tubes or transistors which are connected in a closed ring or chain the potential of the control element of each device being determined by a potential divider having two arms connected to the anodes of adjacent devices and the third to a negative voltage source and in which the devices, with the exception of two adjacent ones, are alternately in the conducting and non-conducting condition, the state of conductivity being progressed along the devices by the application of pulses to the circuit. Fig. 1 shows a three stable-state counter or frequency divider circuit comprising ring-coupled tubes T1, T2, T3 in which normally T2 and T3 are conducting and T1 cut-off. When a first positive pulse is applied at V2, T1 conducts and T2 is thus cutoff, T3 remaining conducting, a second pulse on V2 causes T3 to cut-off and T1 and T2 conduct and a third pulse causes T1 to be cut-off and T2, T3 to conduct. The tendency for T3 to be cut-off when T2 is rendered conductive is offset by the positive pulse applied to its grid from T1 via capacitor C. The absence of a capacitive coupling between the anode of T3 and grid of T1 ensures the stability of the circuit. In a modification, Fig. 2 (not shown), grid damping resistors maintain the stability of the circuit. In a further modification shown in Fig. 3 stability is obtained by the use of an auxiliary tube T4 associated with tube T3 of the chain, the D.C. coupling being between the anode of T3 and the grid of T1 and the A.C. coupling between the anode of tube T4 and the grid of T via a capacitor C. Fig. 4 shows a circuit having five stable states in which neutralizing capacitors C are provided which as described in connection with Fig. 1 prevent undesired changeover of the tubes. In a further modification, Fig. 5 (not shown), stability is obtained by omitting certain of the inter-stage coupling capacitors and providing grid stopper resistors. Damping resistors may be used in series with the inter-stage coupling capacitors, Fig. 6 (not shown).
Patent GB-679095-A (GB)
Title: Method of and apparatus for effecting thermal processes with finely granular or pulverulent carbonaceous substances with the production of active carbon
IPC: C01B31/08
Filed: 1951-04-03
Abstract: The parent process which consists in bringing about or controlling thermal reactions between gases and solids suspended therein by passing the suspension through a mass of refractory bodies which introduce heat into or abstract heat from the reaction space, is modified in that activated carbon and combustible gases are produced, the starting material, consisting of pulverulent, carbonaceous matter such as anthracite, low temperature or peat coke, brown coal dust, sawdust or comminuted shells, being partially gasified and activated in contact with the heat carrier which is heated to a temperature at or above the gasification temperature preferably to 700-1300 DEG C. The apparatus consists of a vertical shaft furnace 1 divided into three sections by constrictions 7 and 8.  A mass <PICT:0679095/III/1> of refractory bodies moves continuously down the shaft, being extracted by a wheel 13 and elevated to a feed hopper 12 for recirculation.  In the top section 2 the bodies are heated to 700-1300 DEG C by combustion gases from a burner 15 and pass through the throat 7 to the gasifying space 3.  The carbonaceous dust which may be impregnated with metallic salts or sulphuric or phosphoric acids to modify the properties of the active carbon produced, is introduced into zone 3 through a line 33 and swept up through the mass of heat carrier bodies by a flow of preheated steam from the lowermost zone 4.  About 30-80 per cent of the carbon is gasified and the remainder activated by the steam, the combustible gases produced and the carbon discharging through ports into a separator 24, the carbon being collected at 25 and the gas passing forward to purifying plant 26, 27 and 30.
Patent GB-856744-A (GB)
Title: Improvements in or relating to methods of, and apparatus for, testing electrical fusible elements
Inventor: BATE HERBERT COLIN
IPC: G01R31/50
Filed: 1957-03-08
Abstract: 856,744. Measuring operating time of electric fuses. GENERAL ELECTRIC CO. Ltd. Feb. 17, 1958 [March 8, 1957], No. 7800/57. Class 37 Apparatus for testing the operating time of electric fuses comprises a high direct voltage source in series with normally open switch 2, ammeter 3, test terminals 4 shunted by normally open switch 5 and series variable resistances 6, 7, of which the latter is shunted by voltmeter 8 and by a charging circuit comprising condenser 9, limiting resistance 10, and unidirectional rectifier 11. The condenser voltage is measurable by ammeter 14 through a slow-discharge resistancecapacitance circuit 15, 16, 17 of time constant long compared with that of the charging circuit of the capacitance, which is dischargable through resistance 13 and normally open switch 12. In operation, resistances 6, 7 are varied with switches 2, 5 closed until a predetermined fusing current flows in 3 and a predetermined voltage appears at 8 With the switches open, a test fuse is inserted at terminals 4 and switch 2 is closed, so that condenser 9 charges steadily through rectifier 11 until the fuse opens, and the accumulated condenser charge is indicated on ammeter 14 as a measure of the fusing time.
Patent GB-214225-A (GB)
Title: Process for the manufacture of cellulose-caoutchoue products
IPC: D04H1/587
Filed: 1924-03-27
Abstract: 214,225. Ditmar, R. April 9, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Fabrics composed of fibres agglutinated by adhesives.-A loose fleece or web of cellulose, such as mercerized cotton felt, cellulose wad, is soaked in rubber &c. latex, whereupon the water is absorbed into the fibres and the rubber &c. deposited. The water is subsequently expressed and the mass is dried. The latex may be concentrated and may have sulphur, fillers such as cement, gypsum, &c. added t'o it, and the product may be vulcanized. The material is applicable as a substitute for leather, linoleum, &c., or for electric insulation.
Patent GB-582741-A (GB)
Title: Improvements in or relating to indicating boards for electric power transmission systems or the like
IPC: H02B15/00
Filed: 1944-04-27
Abstract: 582,741. Indicators for switches. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and BURNS, G. A. April 27, 1944, No. 7854. [Class 38 (v)] An indicating-board of the mimic-line diagram type including portions such as 16 which are rotatable and represent switches, and portions such as 28 which serve as luminous indicators, is made of a number of detachable units 10 all presenting a smooth front surface, flush with the front surface of the board. Contacts 17, 18 mounted behind the panel remotely control the apparatus represented by a switch unit 16, and are operated by a cam 18 when a portion 16 is pushed in against spring pressure, and rotated. An indicating-lamp 25 mounted behind the panel and shining through the material, is used to indicate when the position of the apparatus controlled does not correspond to the position of the indicator 16. Each unit except the switch unit is provided with a circular extension 12 which protrudes through the panel and is secured at the back by a spring clip 14 which engages a groove in the extension and is used as a fixing for the indicating lamp assembly.
Patent GB-241456-A (GB)
Title: Improvements in electric motor controllers
IPC: H02P1/14
Filed: 1925-03-24
Abstract: 241,456. Singer Manufacturing Co., (Assignees of Chason, D. H.). Nov. 19, 1924, [Convention date]. Controllers with compression resistances.-For controlling electric motors of sewing-machines, a graphite disc rheostat 4 is compressed by movement of a guided rod 8 operated through a rocking bell-crank 36 and a shaft 28 by the action of the operator's knee upon a lever 27. At full compression the graphite discs are short-circuited by a switch 16.
Patent GB-633101-A (GB)
Title: Improvements in or relating to drums, containers and like hollow-ware articles
IPC: B65D8/12
Filed: 1947-03-22
Abstract: 633,101. Containers, drums, etc.; spouts. ROBINSON, G. A. March 22, 1947, No. 7898. [Classes 21 and 66] A container, drum &c has dished rectangular ends 1 peripherally secured to a bent strip or strips 2 forming the top, sides and bottom and has a spout 5 placed for easy pouring in the middle of one bend of the strip 2 so as not to project beyond,the adjacent side. The spout 5 may be protected by a handle 6 mounted parallel to and equidistant from the ends 2 or by projections or recesses. The strip 2 may be strengthened by ridges 3. According to the Provisional Specification one end or side may be smaller than the other to facilitate close stacking, the handle may be collapsable, the spout may be offset from the middle of the bend and the containers may be irregular in shape.
Patent GB-731111-A (GB)
Title: Vinyltoluene-unsaturated ester interpolymers and method of making same
IPC: C08F212/14
Filed: 1953-03-23
Abstract: Vinyl toluene (20-80 parts by weight) is interpolymerized with non-conjugated drying oils (80-20 parts by weight) by heating at 120-300 DEG  C. in the substantial absence of added solvents and with or without catalysts such as cumene hydroperoxide and di-t-butyl peroxide.  The drying oils may be linseed or soyabean oil, raw, refined, alkali-treated or heat-bodied, or modified with polyhydric alcohols, e.g. ethylene or propylene glycol, glycerine or pentaerythritol and polybasic acids, e.g. phthalic anhydride. In examples, vinyl toluene (60 per cent meta and 40 per cent para) mixed with cumene hydroperoxide is added portionwise to heat-bodied linseed oil heated under reflux to 230 DEG  C.; un-bodied linseed, bodied and unbodied soyabean oils and a long-oil soyabean oil-modified glycerol phthalate alkyd resin are interpolymerized using t-butyl peroxide as catalyst to form clear ungelled resins, which may be dissolved in mineral spirits to give varnishes or further reacted to form alkyd resins.  Specification 622,948 is referred to.
Patent GB-580523-A (GB)
Title: Improvements in apparatus for butt-welding metal sheets
IPC: B23K11/00
Filed: 1940-05-02
Abstract: 580,523. Uniting by fusion. SOC. DES ACIERS FINS DE L'EST. May 2, 1940, No. 4921. Convention date, June 26, 1939. [Class 83 (iv)] In butt welding sheets end to end, particularly for making up into reels from which they are subsequently fed for cold rolling, one sheet is held by a girder carrying fingers which engage the edge of the sheet and are pushed against the edge by bars or like on a frame mounted on a second girder for clamping the second sheet, the frame which carries the rails for supporting a traversed welding head being thus set parallel with the welding line and then clamped in position. On a plate 7 bearing against a plastic plate 6 and carrying an interchangeable brass plate 8 under the welding line is placed the end of one sheet 16 which is then secured by a fluid-operated clamp 1. The clamp 1 carries a pair of linkages in the form of deformable parallelograms 9, 10, 11, with spring- controlled links 11 and with fingers 17 at the ends of arms 9. After clamping the sheet 16, the arms 9 are lowered and a piston 14 connected to the frame 5 carrying guide rails for the traversed electric arc-welding head 3 is operated so as to move the rods 13 carried by the frame 5 against rollers 12 on the links and thus push the fingers against the edge of the sheet to set the frame parallel with the welding line. The welding apparatus is thus automatically adjusted to a sheet, the axis of which does not extend exactly along the axis of the machine. The frame 5 is then clamped in position, the linkages 9 &c. raised and the second sheet abutted against the end of sheet 16 and the clamp 2 lowered. After welding is effected, the clamp 2 is raised and the frame 5 then returned to normal position by operation of the piston 14. The clamps 1, 2 may be air cooled. In a modification, the welding carriage 4 and frame 5 may be carried by a girder separate from the clamps 1, 2 and extending over the weld from one end to the other. The second sheet 23 may be passed through adjustable guides 24, 25 carried by a plate 27 which is movable in all directions by a hand lever 29 of the joy-stick type.