baber/WOPTO huggingface dataset:
Patent GB-1113045-A (GB)
Title: Improvements relating to safety razor blades
Inventor: POMFRET EDWARD ERIC
IPC: B21D53/64
Filed: 1965-09-09
Abstract: 1,113,045. Shaping razor blades; breaking. GILLETTE INDUSTRIES Ltd. 9 Sept., 1965, No. 38603/65. Headings B3A and B3E. [Also in Division B4] A razor blade is severed by a V-section punch C from a wafer-thin hardened steel strip A supported on a yieldable base B such as polystyrene. The strip A is pressed against the base B by a spring-loaded pressure pad D. A double-edged blade A (Fig. 2, not shown) may be placed on a razor blade guard B constituting the yieldable base B, and severed along curved lines E to form a single-edged generally triangular blade.
Patent GB-338770-A (GB)
Title: Improvements in or relating to plug valves or cocks
IPC: F16K5/02
Filed: 1929-12-18
Abstract: 338,770. Evered & Co., Ltd., and Bailey, H. J. Dec. 18, 1929. Closure members, rotating conical; casings.- A plug cock comprises a body or casing 9, a taper plug 5 rotatably mounted therein, a bar or platelike member 11 transversely disposed relative to the plug and adapted to abut against said plug, or an annular member 8 thereon provided with knighting pins 8<a> moving in arcuate grooves 9a in the casing 9. Screws 10 connecting the bar 11 to lugs 9<b> in the casing 9 serve to adjust the pressure between the member 11 and the plug 5 thus exerting an axial thrust on the valve to compensate for wear. The outlet bore 5<a> through the plug is regulated by the axial adjustment of a needle valve 6 carrying a screwed part 6<a> engaging a screwed bore 5<b> in the plug. The valve 6 may be adjusted from the operating end of the cock on securing a handle 7 to the end 5<c> of the plug. The handle 7 is partially surrounded by a cover disc 12.
Patent GB-1414801-A (GB)
Title: Playback devices for disc-shaped record carriers
IPC: B65D81/02
Filed: 1972-08-21
Abstract: 1414801 Disc record playback TED BILDPLATTEN AG AEG-TELEFUNKEN TELDEC 21 Aug 1972 [26 Aug 1971 6 Oct 1971] 38847/72 Heading G5R [Also in Division B6] In an arrangement for playing back disc record carriers made of foil material which can be damaged by touch, each record is fed to the play back machine in a sheath which is formed with a slot or recess to allow access to the record by holding members which retain the record when the sheath is withdrawn. After play back the disc is reloaded in the sheath by a reverse process. Two types of sheath are described. The first 3, Fig. 9 has a slot 9 in both sides extending from the open edge to allow engagement of the centre of the record 1 by a drive and holding member 71 when the sheath and record are entered into the play back machine. The second 26 is formed with a cover 28 and the slot 27 is formed in one side only, 26a, of the sheath. The sleeves are formed of flexible material so that when horizontal one side can be raised or lowered relative to the other to allow record insertion. This action is facilitated in sheath 3 by having one edge extending beyond the other at the open edge. When a record in sheath 26 is entered in the direction of the arrow into the play back machine, Fig. 8, with the slotted side 26a of the sheath downwards, the sheath engages a locking member 49 which trips a lever 50 so that a friction element 53 on the lever moves the record sleeve into engagement with roller 51. The friction between the element and record is greater than that between the record and the sleeve so the sleeve can be withdrawn from the machine. Cam wheel 43 is then rotated by means (not shown) to release via arm 44 the spring pressure acting on lever 50 so that element 53 releases the record which is then centred, driven and played back by means (also not shown). After play back the sleeve is reentered in the direction of the arrow and the sleeve weight acts on pivotable member 55 to raise element 61 so that the record and the upperside 26b of the sleeve are lifted to assist entry of the record into the sleeve. An arrangement in which the record is removed from the sleeve and is driven along a curved path to the play back position is described in Specification 1,414,802.
Patent GB-1017657-A (GB)
Title: Production of acrylonitrile polymers
IPC: C08F20/44
Filed: 1964-09-23
Abstract: Acrylonitrile polymers are produced by a method comprising effecting solution polymerization of the reactants in the presence of a dispersion medium which is a non-solvent for the reactants and for the resultant polymer and is immiscible with the solvent component of said solution.  The acrylonitrile may be homo- or co-polymerized and many suitable comonomers are listed of which methyl acrylate, methyl methacrylate and styrene are exemplified, the latter being grafted on to a polyacrylonitrile base.  A number of solvents are listed, those exemplified are dimethylformamide, dimethylsulphoxide, ethylene carbonate, g -butyrolactone, 50% aqueous solutions of sodium thiocyanate or zinc chloride, and concentrated nitric acid. Catalysts exemplified are azobisisobutyronitrile, ammonium persulphate, benzoyl peroxide, and sodium cyanide, the latter being used in anhydrous dimethylformamide solution.  Suitable dispersion media are paraffin hydrocarbons and halogenated paraffin hydrocarbons, liquid paraffin being exemplified.  Both batch and continuous polymerizations are described.
Patent GB-1011714-A (GB)
Title: Improvements in railway points control mechanism
Inventor: DENNISON HENRY FRANCIS
IPC: E01B7/02
Filed: 1963-10-03
Abstract: 1,011,714. Points control mechanism. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Sept. 17, 1964 [Oct. 3, 1963], No. 38997/63. Heading B7N. Railway points control mechanism comprises an encased assembly including points operation and locking means, track switchdetecting means and wide-to-gauge detecting means of the type described in Specification 801,282. The mechanism is connected to a power drive which may be electrical, mechanical or electro-pneumatic.
Patent GB-1317622-A (GB)
Title: Polyamide composition
IPC: C09D167/00
Filed: 1970-08-13
Abstract: 1317622 Coating metal HERMANN WIEDERHOLD and DAIMLER-BENZ AG 27 Feb 1970 [1 March 1969] 39131/71 Heading B2E [Also in Division C3] A composition for use as an adhesion promoter in the filling or coating of metal substrates comprises (i) 70 to 90% (by weight) of polyamide resin (A) (ii) 5 to 15% of polyamide resin B and (iii) 5 to 15% of a pigment which changes colour at 100 to 280‹C. Resins (A) and (B) each have a M.P. of at least 200‹C, a viscosity of 20 to 60 poises at 250‹C and a softening point in the range 30 to 120‹C; resin (A) is derived from (a) a mixture of 20 to 30% of a C 6-12  aliphatic dicarboxylic acid and 80 to 70% of more than 80% dimerised C 12-22  unsaturated fatty acid and (b) ethylene diamine or a mixture thereof with trimethyl hexamethylene diamine; resin (B) is derived from (C) a mixture of 20 to 10% of sebacic acid and 80 to 90% of a 60 to 75% dimerised such fatty acid and (d) ethylene diamine. The pigment may be iron oxide yellow.  Coating and filling metal substrates. The composition is stated to be particularly suitable to application to sheet metal in making vehicle bodies especially when it is to be filled or coated with the composition of Specification 1317621 (see Division C3). The composition of Specification 1317621 may be preheated to 190 to 250‹C before being applied to the metal substrate treated with the adhesion promoter. It may then be heated to the melting temperature with a flame or hot air using an electrically heated thermostatically controlled metal spatula. After cooling the applied composition may be ground e.g. using a 180mm grinding wheel having its abrasive surface coated with zinc stearate and rotating at relatively low speeds e.g. 500 to 1500 r.p.m. An initial coarse grinding with grain 40 may be followed with polishing with grain 60 or 80. Reference has been directed by the Comptroller to Specification 1055676.
Patent GB-1325905-A (GB)
Title: Hobbing tools for the machining of gearwheels
IPC: B23F21/16
Filed: 1970-08-13
Abstract: 1325905 Hobs METRO-CUTANIT Ltd 13 Aug 1970 [13 Aug 1969] 39154/70 Heading B3K  A hob has reversible cemented carbide cussing inserts 6, Figs. 4, 5, clamped to blades 2, 3, the clearance angle of the inserts being 3 to 10 degrees. The inserts may be of diamond crosssection with the cutting edges on the same side of the insert, Fig. 1, or on opposite sides, Fig. 2. Blades 2 are of parallel form, or they may be wedge-shaped as shown by blades 3. The inserts are located by templates 7, or by recesses 2a, 3a in the blades, and clamped by jaws 4, actuated by right and left-handed screws 5. A jaw 4 is provided for each pair of inserts. A hob for machining internal teeth formations is of disc shape, Figs. 7-9 (not shown). (For Figures see next page.)
Patent GB-935829-A (GB)
Title: Improvements in or relating to safety devices for electrical apparatus
IPC: H01R13/44
Filed: 1958-12-05
Abstract: 935,829. Plugs for electric sockets. H. S. DONY. Nov. 24, 1959 [Dec. 5, 1958], No. 39256/58. Class 38 (1). A safety device for electric sockets comprises a plug having its pins formed wholly or partly of insulating material arid arranged to be held in the socket against attempted removal by a child. The plug may be a one-piece moulding of hard vulcanized rubber, synthetic rubber, synthetic resin or polymeric material with periperally grooved pins 2, as shown, slightly larger in diameter than corresponding metal pins or with pins of slightly non-standard spacing, to ensure a tight fit in the socket, the plug body in the latter case being slightly resilient to allow deformation during insertion. Metal inserts may extend through the centre of the pins into the body to prevent breakage and lodgment of a pin in the socket. Alternatively, the plug may have metal pins with portions adjacent the body formed of or sleeved in insulating material to guard against hazard arising from insertion of a metal article between the plug and the socket. In a further embodiment one or more of the pin portions may be expanded in the socket by rotation of a knob on the body so as to prevent withdrawal.
Patent GB-339512-A (GB)
Title: Improvements in or relating to heating apparatus
IPC: F24C15/34
Filed: 1929-12-23
Abstract: 339,512. General Electric Co., Ltd., Crampton, W. J., and Pillans, J. P. S. Dec. 23, 1929. Heat-storing apparatus. - In a heating-apparatus such as an electric cooking stove in which stored heat is carried by a fluid, e.g., oil, flowing to heat-utilizing means, the operation of a valve for controlling the circulation of the fluid also controls a pump which circulates the fluid. A tank 1 contains oil which is heated by an electric heater 6. Flow and return pipes 8, 9 are provided, and between them are arranged in parallel a pipe coil 12 surrounding an oven 2, and two hot plates 3, 4. The heated oil is allowed to circulate to these through valves 13, 15, 18, any one of which when turned to the " on " position also closes an electric switch controlling a motor driven pump 21 which circulates the oil.
Patent GB-1072721-A (GB)
Title: Lifting beams with automatic couplings
Inventor: MORRIS ERIC WILLIAM
IPC: B66C1/22
Filed: 1963-10-04
Abstract: 1,072,721. Lifting beams with automatic couplings. BABCOCK & WILCOX Ltd. Oct. 5, 1964 [Oct. 4, 1963], No. 39281/63. Heading B8H. Crane hooks 18 are attached to a lifting beam 12 by links 24 which are pivoted from the position shown on the left of Fig. 1 to that shown on the right when the bottom of the hooks presses down on pins 36 attached to arms 34 of the links 24. The links are held in their hook engaging position by catches 44 which are pivoted to one of the links and engage pins 52 on the other link of each pair. To release the hooks the beam and hooks are lowered until the latter rest on the pins 36. The catches 44 are now raised by handles 48 so that when the hooks are slowly raised the links 24 move outwards to the disengaged position under their own weight.
Patent GB-1440909-A (GB)
Title: Apparatus for the separation and purification of solids from  a suspension and for leaching solid particles
IPC: B01D11/02
Filed: 1973-09-20
Abstract: 1440909 Infusing GRASSO'S KONINKLIJKE MASCHINEFABRIEKEN NV 20 Sept 1973 [26 Sept 1972] 39403/75 Divided out of 1427414 Heading A4E [Also in Division B 1] Apparatus for the separation and purification of solids from a suspension and for the leaching of solid particles including coffee beans comprises, as shown in Fig. 3 a column 1 closed at one end by a porous plate 70 with one or more holes 71 therein for the supply of a liquid suspension of solid particles, a rotatable scraping knife 14 is disposed within the column and displacable axially thereof for compacting of the solid particles to a bed and for the subsequent mechanical removal of a portion of the compacted bed, a discharge pipe 21 for the progressive removal of successive portions of the bed, a pipe 6 at the opposite end of the column 1 for supplying washing fluid to the bed, and means for driving the rotatable scraping knife 14 so that no rotation takes place during the second part of its compression stroke in which the bed formed during a first part of its compression stroke is compacted between the old bed and the porous plate 70. Washing liquid can be introduced through pipe 17 and returned to the circuit via pipe 21 and controlled by photo-electric cell 60 and associated controls.
Patent GB-866515-A (GB)
Title: Improved arrangements for handling radioactive materials
Inventor: HESSEN VICTOR BORIS
IPC: G21F7/02
Filed: 1957-12-19
Abstract: 866,515. Handling radioactive materials. PYE Ltd. Dec. 19, 1958 [Dec. 19, 1957], No. 39520/57. Class 39(4). A shielded chamber in which radioactive materials may be handled by a manipulating device includes a television camera remotely controlled for movement on a carriage within the chamber and a television receiver outside the chamber to assist an operator in the handling of the material. The various surfaces of the chamber walls may be readily identifiable by marking them with identifying symbols or patterns and the operator may have a sheet metal chart similarly marked, the camera positions being indicated by a magnetic member arranged on the sheet, and this member may be moved automatically upon movement of the camera. More than one camera may be provided.
Patent GB-1469896-A (GB)
Title: Process for the manufacture of a hydroxytetramethyl-butylbenzene
IPC: C07C27/00
Filed: 1975-09-26
Abstract: 1469896 Preparation of hydroxytetramethylbutylbenzene CIBA GEIGY AG 26 Sept 1975 [9 Oct 1974] 39559/75 Heading C2C The invention comprises a process for the manufacture of a hydroxy-(1,1,3,3-tetramethylbutyl)-benzene by reacting the corresponding hydroxybenzene with 2,4,4-trimethylpentene in the presence of a hydroxyalkyl compound and using highly concentrated sulphuric acid (as hereinafter defined) as the catalyst, characterized in that the reaction is carried out in the presence of ethylene glycol. By highly concentrated sulphuric acid is meant a sulphuric acid which contains 90 to 98% by weight of H 2 SO 4 , the remainder consisting essentially of water. It is possible to use as the 2,4,4-trimethylpentene either of the two isomers, that is to say α-diisobutylene of the formula or #-diisobutylene of the formula or, usually particularly advantageously, a mixture of the two. The ratio of ethylene glycol to sulphuric acid, in parts by volume, which is used for the reaction is advantageously 1 : 2 to 2 : 1.
Patent GB-869198-A (GB)
Title: A method of fabricating brazing and welding rods
Inventor: SALT ALBERT EDWARD
IPC: B23K35/32
Filed: 1957-12-20
Abstract: Welding or brazing rods of titanium base eutectic or eutectiferous alloy compositions are produced by mixing the constituent powders of particle size less than 250 microns, compacting into a sheet or plate to a density near theoretical, sintering the compact under vacuum or an inert atmosphere at a suitable temperature so that the sheet or plate can then be machined into rods.  Compaction is effected in a die at 20 tons per sq. inch, by hydrostatic pressing, hot pressing or preferably by roll compacting.  A suitable sintering temperature is 650 DEG C. to 800 DEG C. under vacuum or argon.  The following alloy compositions are processed according to the above method: 72% Ti - 28% Ni; 62% Ti - 28% Ni - 10% Cu; 57.5% Ti -42.5% Mn; 72% Ti - 28% Co; 91.5% Ti -8.5% Si.  The Ni content may range between 20% to 35%, the Mn content from 35% to 45%, the Co content from 20% to 32% and the Si content from 6% to 10%.  Specification 869,197 is referred to.
Patent GB-1428099-A (GB)
Title: Process for preparaing dipropylene glycol dibenzoate
IPC: C07C69/78
Filed: 1974-09-11
Abstract: 1428099 Preparation of dipropylene glycol dibenzoate DYNAMIT NOBEL AG 11 Sept 1974 [15 Sept 1973] 39706/74 Heading C2C Dipropylene glycol dibenzoate is prepared by transesterifying methylbenzoate with dipropylene glycol in the presence of an aluminium alkoxide and/or an aluminium-silicon alkoxide as a catalyst at a temperature above 150‹ C.
Patent GB-1360981-A (GB)
Title: Lubricant compositions
IPC: C10M169/00
Filed: 1971-10-14
Abstract: 1360981 Lubricants OROBIS Ltd 14 Oct 1971 [19 Aug 1970] 39889/70 Heading C5F A lubricant comprises (1) an oil base; (2) a polyalkenyl succinimide in which the imide nitrogen carries polyamine groups; (3) a phosphorodithioate, alkyl aromatic amine or phenol antioxidant; (4) an alkaryl phosphate. Compounds specified include tris-(4-dodecylphenyl) phosphite, alkaline earth metal phenates, zinc o,o-dioctyl phosphorodithioate, dioctyl-diphylamine, dioctyl phenothiazine, 2-hydroxy 3,5- ditert-butyl-4-methyl diphenylamine, 2,6-ditertbutyl-p-cresol and 4,4-methylene-bis-(2,6-ditert-butyl phenol). The lubricant may contain conventional additives and also nitrogencontaining ethylenic copolymers.
Patent GB-1351961-A (GB)
Title: Process for treating a water stream containing a water soluble  sulphite
IPC: C01B17/16
Filed: 1971-08-26
Abstract: 1351961 Reducing the sulphur content of aqueous streams UNIVERSAL OIL PRODUCTS CO 26 Aug 1971 [31 Aug 1970] 40068/71 Addition to 1329814 Heading C1C A method of reducing the sulphur content of an aqueous stream containing a water-soluble sulphite and/or bisulphite comprises (a) reacting the stream with finely divided sulphur, a polysulphide and/or a water-soluble sulphide compound to form thiosulphate in the stream, (b) reacting the thiosulphate-containing stream with hydrogen in the presence of a catalyst to form a sulphide and (c) stripping sulphur in the form of hydrogen sulphide from the sulphidecontaining stream to form an aqueous stream which has a substantially reduced sulphur content and is substantially free of sulphate. The aqueous stream may contain ammonium, alkali metal or alkaline earth metal sulphite or bisulphite. The reducing agent in step (a) may be ammonium, alkali metal or alkaline earth metal polysulphide, sulphide or hydrosulphide or hydrogen sulphide. A wetting agent may be used in step (a). In step (b) the catalyst may comprise a metal of Group VI or VIII (e.g. a sulphide thereof) in combination with alumina, activated carbon or charcoal, silica-zirconia, silica-alumina, bauxite or clay. In step (c) carbon dioxide, steam, nitrogen or air may be used. The hydrogen sulphide released in step (c) may be used in step (a). Steps (a), (b) and (c) may be carried out at elevated temperature and pressure.
Patent GB-1441831-A (GB)
Title: Apparatus for measuring blood pressure
IPC: G01L7/00
Filed: 1973-08-23
Abstract: 1441831 Measuring blood pressure T ARONSON 23 Aug 1973 [10 Nov 1972] 40076/73 Heading A5K Blood pressure measuring apparatus comprises a cuff 1, Fig. 1, an inflatable bladder 1a within the cuff 1, a pump 4, and a pressure gauge 10, the pump 4, the bladder 1a and the gauge 10 being connected by a single tube 3, and a nozzle 6 projecting from the pump 4 and having a longitudinal passage 9 and a transverse passage 15 therein between the gauge 10 and the passage 9. The cuff 1 carries a transducer 2 connected to an amplifier 11 having a sensitivity control V, for energising a light L or a speaker 5 mounted in a casing 13, the control V being set so that the amplifier output commences at systolic pressure and ceases at diastolic pressure. A needle valve 8 in the nozzle 6 permits air to be bled from the system. The casing 13 has a tubular side extension 43, Fig. 5, within which the nozzle 6' is sealed by sealing rings 45, 46, 52 and clamped by a nut 45a engaging a screw thread 25 on the end of the nozzle 6'. The pump 4' is a bulb having a one-way ball valve 16, 17 at one end and another one-way valve at the other end, consisting of a closed rubber tube 20 with a slit 21 in its wall. A reduced diameter portion 47 on the nozzle 6' defines, with the extension 43, a chamber 48 through which the passage 15' communicates with the gauge 10' through radial passages 49, 50. The cross-sectional area of the passage 15' is about 1/64th that of the passage 9'. The casing 13' has a handle 53 against which the bulb 4' may be squeezed for one-handed operation of the device.
Patent GB-1097980-A (GB)
Title: Encoder
IPC: G06K1/06
Filed: 1966-09-13
Abstract: 1,097,980. Selective punching. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 13,1966 [Oct. 11, 1965], No. 40765/66. Heading B4B. [Also in Division B6] An encoder comprises a plurality of code slides 30 having openings 31 and 32, the openings 32 being selectively engageable by interposers 18 and the corresponding openings 31 being engageable by the detent portions 14 of stop members 12, the arrangement being such that after selected interposers are moved from left to right, Figs. 2 and 5, the corresponding detent portions remain stationary so that selected slides are moved to cause, through their extensions 33, operation of a punch unit 6 to punch a tape 4. A printing mechanism could be used in place of the punch unit. When a selected key 1, Fig. 1, is depressed its associated key lever 8 depresses, against the action of a spring 20, Fig. 2, the corresponding stop member 12 until its arm 13 is below the level of a keeper 16 in which position the arm 13 is held by an interposer 18. An arm 15 of the stop member 12 then trips, through a bail 22, a cycle clutch of the machine. Thereupon, a carrier 24 is moved from left to right, Fig. 2, by rotation of a cam 54 and shaft 55 about a shaft 56, to move the selected interposer 18 in its opening 32 and cause movement of selected slides 30 corresponding to the character to be punched. After the punching operation, the carrier 24 is moved from right to left to return the slides to their inoperative position and a restoring bail 26 is moved, by rotation of a cam 57, Fig. 1, and shaft 58 about a shaft 59, to move the arm 13 to disengage it from the keeper 16 and at the same time disengage the interposer 18. Telegraph signals could be used in place of the keys 1. In a modification, the openings (51), Fig. 7 (not shown) of the slides (50) which are to remain stationary are L-shaped and as the interposer (18) is moved to its operative position, it pushes the stop members (12) in a horizontal direction and moves them to the rear of the openings (51). In a further modification, two sets of code slides (30, 37), Fig. 6 (not shown) are provided, the slides (37) having openings (38) one set of which is aligned and engaged by a sensing member (12) when an opening in a paper tape (35) is sensed by a pin (40). At the same time, the detent portion (14) of the sensing member (12) engages aligned openings in the slides (30) and an interposer (18) engages openings (32) in the slides (30).