baber/WOPTO huggingface dataset:
Patent GB-1570035-A (GB)
Title: High-voltage electric interrupter apparatus
IPC: H01H33/98
Filed: 1977-12-05
Abstract: In an electric high-voltage switch having a fixed (4) and a movable contact piece (14), having an arcing chamber, which is filled with an insulating gas and has an expansion chamber (7) and a compression chamber (6), and having a passage from the compression chamber (6) into the expansion chamber (7) for the insulating gas heated in the compression chamber (6) by the arc (28) burning between the contact pieces (4, 14), the aim is to use simple means to enable strong and weak alternating currents with frequencies of between 16 2/3 and 60 Hz always to be reliably switched. This is achieved when there is provided in the arcing chamber a compression device which is provided with a piston (37) and a cylinder (36) and which can be operated in correlation with the opening movement of the movable contact piece (14) and is connected to the compression chamber (6) via a nonreturn valve (39) in such a way that insulating gas can flow only from the compression device to the compression chamber (6). <IMAGE>
Patent GB-1525789-A (GB)
Title: Producing flat films and sheets from polymer materials
IPC: B29C48/08
Filed: 1976-12-06
Abstract: 1525789 Forming films R I BATYREV S I GDALIN A S ZORIN V N KONSTANTINOV V I KLOCHKOV V V MALININ I I RUMYANTSEV V G SEMENOV I I SPORYKHIN V A YAKOVLEV and A I NEKRASHEVICH 6 Dec 1976 50681/76 Heading B5B An extruded web is passed through an electrostatic field 4 then round an intermediate roller 3, is stretched then passed round a cooling roller 2, further stretching taking place between the intermediate and cooling roller. The web is cooled and oriented. An electrostatic field 5, may also be applied to the film between the intermediate and the cooling roller. An apparatus consists of an extruder 19 with die 1 under which is disposed vertically intermediate roll 3, cooling roll 2, slow rotating cooling rolls 6, 7; orienting rolls 8, 9, fast rotating cooling rolls 10-14; the rolls arranged in two groups and mounted on cross-pieces 16 and 17. Cross piece 17 also carries ionizers 4 and 5, and heater 15. The cross-pieces are mounted on horizontal guideways 18 and are capable of lateral movement. Roll 3 is driven separately from the other rollers and rollers 6, 7 and 8 are provided with cooling systems and also a thermostatic system.
Patent GB-1509454-A (GB)
Title: 2-amino-tetralins
IPC: C07C/
Filed: 1975-03-27
Abstract: 1509454 2 - Amino - tetrahydronaphthalenes WELLCOME FOUNDATION Ltd 27 March 1975 [28 March 1974] 50867/77 Divided out of 1509453 Heading C2C Novel compounds of formula in which each of R and R<SP>1</SP> is H or C 1-8  alkyl) and each of R<SP>2</SP> and R<SP>3</SP> is H or C 1-12  alkyl, provided that when both of R and R<SP>1</SP> are H or CH 3 , one of R<SP>2</SP> and R<SP>3</SP> is C 2-12  alkyl, are prepared by reduction of a compound II where R and R<SP>1</SP> are C 1-8  alkyl, followed, if required, by hydrolytic cleavage of the ether groups.
Patent GB-1168465-A (GB)
Title: Improvements in Bulk Containers
Inventor: MALPAS CHARLES HENRY
IPC: B67B7/86
Filed: 1966-11-14
Abstract: 1,168,465. Tapping containers; boxes. C. H. MALPAS. 14 Nov., 1966 [19 Nov., 1965; 21 Feb., 1966], No. 50987/66. Headings B8P and B8T. A box, can &c. comprises an outer casing, an inner flexible bag, a tap socket member connecting the two and a tap for introduction into the socket member. In one form, a box 11, Fig. 2, contains a flexible bag 13 and at the bottom of one side wall of the box a socket 14 having a tubular body 16 is passed through holes in the box and bag. A grooved ring 22 is forced over a beaded inner end 17 of the socket 14, and clamps the bag to the socket, presenting a tight diaphragm across the end of the tubular body 16. An eccentric lobe 15 of the socket 14 enters an offset hole in the wall of the box 11, to hold the socket against rotation. To tap the box, a stopper 21 is first removed from the outer end of the socket 14. A tap 27, Fig. 4, of tubular shape is then forced through the socket 14 so that its inner pointed end 44 ruptures the diaphragm presented by the stretched and clamped bag wall. Liquid in the bag 13 passes through holes 45 into the tap, which contains a rotary valve cylinder 46 turnable by a knob 50 to align a port 48 with a dispensing spout 41, as shown. The outer end of the socket 14 has a non-circular recess 20 engaged by a correspondingly shaped flange 42 around the tap 27, to hold the latter against rotation within the socket. In a modification, Fig. 5 (not shown), the eccentric lobe 15 is replaced by a square cross-sectioned flange (16a) engaged in a hole through the box wall. In another modification, a tubular plug (24), Figs. 6, 7 (not shown), extending through the bag and the box wall, is engaged externally by a socket 25 having a separate end cap.
Patent GB-1486708-A (GB)
Title: Card index device
IPC: B42F17/34
Filed: 1975-12-12
Abstract: 1486708 Index card devices JOHN MFG Ltd 12 Dec 1975 51090/75 Heading B6E An index card device having a housing 1 with a surface 2 for supporting a set of cards (A ... E, Fig. 3) which are covered by a lid 3, when not in use, is provided with card selection means including a push-button 4, acting on a card selecting finger 5, which forms part of a belle-crank lever 15, through the intermediary of a connecting arm 16 and a bell-crank lever 19. Depression of the push-button causes rocking of cam 20 on the lever 19 and consequent upward pivoting of the finger 5. A further push-button is provided which acts on similar bell-crank lever assembly to close the lid.
Patent GB-1171519-A (GB)
Title: A Chain Saw
IPC: B27B17/14
Filed: 1967-11-09
Abstract: 1,171,519. Sawing. OMARK INDUSTRIES Inc. 9 Nov., 1967 [9 Nov., 1966], No. 51110/67. Heading B5L. A chain saw comprises a frame 20 mounting a sprocket 16 for rotation about a fixed axis 22, a chain guide means 14 mounted movably on the frame, a saw chain 12 extending around the sprocket and guide means, and means for adjusting the guide means relative to the sprocket while the chain saw is running. The sprocket is driven through a centrifugal clutch from a motor 18 mounted in the frame 20. The guide-bar 14 for the saw chain 12 has a slot 34 received on a pair of studs 36 extending from the casing. A constant force spring 30 abuts the frame 20, is also formed with a slot 42 received on the studs, and is secured to the guide-bar by pins 44. A cover-plate 54, wear-plate 50 and cam-plate 52 are mounted on the studs 36, the plates co-operating with a clamp 60 secured to a handle 68. The clamp can be moved, while the saw is running from the position shown, in which the plate 54 clamps the guide-bar 14 and flat portion 40 of the spring to the frame, to an anti-clockwise position in which the guide-bar and portion 40 are released and the spring 30 acts against an abutment 82 on the frame to move the guide-bar and tension the frame. In other embodiments, the spring is housed in a recess in the frame or is mounted on the other side of the guide-bar and acts against a plate on a cover of the frame. In a further embodiment, the spring acts on a slide connected by a pin to the guide-bar.
Patent GB-1380287-A (GB)
Title: Manufacture of semiconductor devices
IPC: G01R31/26
Filed: 1972-11-06
Abstract: 1380287 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 6 Nov 1972 [30 Nov 1971] 51117/72 Heading H1K A method of stressing insulating layers, particularly gate oxides of IGFETS, on the surface of semi-conductor wafers to cause early failure of imperfect layers comprises subjecting the layers to a glow discharge and an electric field, preferably of between 1 and 4 Î 10<SP>6</SP> volts/ cm, for a tine, e.g. 30 mins., sufficient to break down imperfect layers. A magnetic field of between 40 and 70 gauss also may be advantageously applied in a direction perpendicular to the insulating surface during the glow discharge, and the wafer may also be heated to between 70 and 250‹ C. by means of a heated coil. The operation may take place in a bell jar containing a low pressure of argon or nitrogen, the wafer being placed below an energized cathode, on a grounded anode. The magnetic field may be applied by an electromagnet encircling the bell jar. The wafer may be of silicon, the layer being thermally grown silicon dioxide, or else of silicon nitride, gallium nitride or titanium dioxide.
Patent GB-1069497-A (GB)
Title: Improvements in or relating to the centrifugal casting of tubular members
IPC: B22D13/02
Filed: 1963-12-30
Abstract: 1,069,497. Centrifugal casting apparatus. BLACK CLAWSON CO. Dec. 30, 1963 [March 11, 1963], No. 51138/63. Heading B5A. [Also in Division B3] In a method of centrifugally casting tubular members with internal flanges (47) such as are used in the production of drier drums and suction rolls for paper-making machinery, molten material is poured into the rotating mould (10) which includes baffles (22), and then a predetermined volume of a fluid material (45) having a S.G. not greater than that of the casting material is poured into the mould to force a predetermined amount of molten material into the flange-forming chambers (28, 29). The fluid material (45) may be a slag, salt, ceramic, or metallic compound which is non-reactive with the casting material, or a solid or semi-solid material, e.g. granulated. The baffles may be of metal and incorporated in the casting.
Patent GB-1445453-A (GB)
Title: Slit shutter for a camera
IPC: G03B9/18
Filed: 1973-11-05
Abstract: 1445453 Shutter mechanism PRONTORWERK ALFRED GAUTHIER GmbH 5 Nov 1973 [8 Nov 1972] 51261/73 Heading G2A A shutter mechanism comprises window-opening and window-closing groups of blades all moving rectilinearly at right angles to the direction of movement of the film, each group comprising a slitforming blade forming part of a parallelogram linkage and at least two further blades associated with the slit-forming blade and supported in straight guides. As shown, the window-opening group of blades (the window-closing group being similar) comprises a slit-forming blade 3 connected to operating links 6 and 7 and further blades 4 and 5 having pin/slot connections 4b/6b and 5b/7b with links 6 and 7 and also having pins 4a and 5a sliding in guide slots, (19 and 18), Fig. 1, (not shown), one on each side of the blades. Links 6 and 7 have fixed pivots 8 and 9 and an end-coupling 10 held by a release pawl 16 against the action of a spring 11. Pins 12 and 13 limit movements of links 3 and 4.
Patent GB-1410029-A (GB)
Title: Fluids administration devices
IPC: A61M31/00
Filed: 1972-11-08
Abstract: 1410029 Vaginal syringes IMS Ltd 8 Nov 1972 [7 Feb 1972] 51519/72 Heading A5R A device for administering fluids into the vagina comprises an elongated tubular holder 18 having a smooth rounded end 28 and a thrust portion 20, and a cylindrical vial 10 adapted to be received in the holder and having a resilient slidable stopper 12, the stopper includes a central diaphragm portion 14 and the thrust portion includes a passage 22, a sharp end portion 32 and a disk-like member 30. In use the central diaphragm portion 14 of the stopper is punctured by the sharp end portion 32 and the stopper is held by the member 30 to function as a piston as the vial is moved into the holder. The holder may be provided with wings 34 and openings 36 to aid in the handling of the device. The stopper may be provided with sealing rings 16. The thrust portion shown is generally cylindrical but in alternative forms the thrust portion is tapered.
Patent GB-1073160-A (GB)
Title: Improvements in or relating to transfer elements and their preparation
IPC: B41M5/10
Filed: 1964-12-18
Abstract: A self-supporting transfer element, e.g. a typewriter ribbon or carbon paper, comprises a thermoplastic material bearing a surface exudate of a plasticizer containing an organic dye dissolved therein. The plasticizer is such that a homogeneous mixture of thermoplastic material and plasticizer will separate on standing at ambient temperature.  The transfer element may be made by intimately mixing the thermoplastic material, plasticizer and dye at a temperature at which the thermoplastic material is malleable, extruding the mixture into sheet form at that temperature, and cooling to room temperature, when the plasticizer separates to form a surface layer.  After cooling, the sheet may be streched to increase its tensile strength. In the examples, the compositions comprise: (1) nylon, tricresyl phosphate and oil blue black ZBC; (2) nylon, hexadecyl stearate and Nubian resin black; (3) cellulose acetate, triphenyl phosphate and oil blue black; (4) polyvinyl butyral, "Paraplex G-54" (Trade Mark) (a polyester) and Nubian resin black; (5) polyethylene, chlorinated diphenyl and oil blue black; (6) polyvinyl chloride, chlorinated diphenyl and Nubian resin black; and (7) nylon, sucrose isobutyrate and oil blue black ZBC. Reference is also made to the use of polypropylene or cellulose butyrate as thermoplastic material and of a phthalate, adipate or sebacate as plasticizer.ALSO:A self-supporting transfer element, e.g. a typewriter ribbon or carbon paper, comprises a thermoplastic material bearing a surface exudate of a plasticizer containing an organic dye dissolved therein.  The plasticizer is such that a homogeneous mixture of thermoplastic material and plasticizer will separate on standing at ambient temperature.  The transfer element may be made by intimately mixing the thermoplastic material, plasticizer and dye at a temperature at which the thermoplastic material is malleable, extruding the mixture into sheet form at that temperature, and cooling to room temperature, when the plasticizer separates to form a surface layer.  After cooling, the sheet may be stretched to increase its tensile strength. In the Examples, the compositions comprise: (1) nylon, tricresyl phosphate and oil blue black Z BC; (2) nylon, hexadecyl stearate and Nubian resin black; (3) cellulose acetate, triphenyl phosphate and oil blue black; (4) polyvinyl butyral, "Paraplex G-54" (Trade Mark) (a polyester) and Nubian resin black; (5) polyethylene, chlorinated diphenyl and oil blue black; (6) polyvinyl chloride, chlorinated diphenyl and Nubian resin black; and (7) nylon, sucrose isobutyrate and oil blue black ZBC.  Reference is also made to the use of polypropylene or cellulose butyrate as thermoplastic material and of a phthalate, adipate or sebacate as plasticizer.
Patent GB-1201249-A (GB)
Title: Process for treating melt extruded filaments
IPC: D01D11/00
Filed: 1967-11-15
Abstract: 1,201,249. Treating filaments. MONSANTO CO. 15 Nov., 1967 [16 Nov., 1966], No. 51960/ 67. Addition to 937,798. Heading D1B Polymer filaments especially nylon and polyester solidified filaments. are continuously treated immediately after extrusion (i.e. within 3 seconds) and before stretching with a colouring agent, a light stabilizer, a heat stabilizer, a cross-linking agent, a dye resist or dye receptive agent followed by stretching. Emulsion of these agents may be applied to the filaments. In Example IV-XXIV acid, premetallized, boric, disperse, vat dyes and pigments are applied.
Patent GB-1173596-A (GB)
Title: Speed Responsive Governors.
Inventor: MOWBRAY DORIAN FARRAR
IPC: G05D13/08
Filed: 1965-12-09
Abstract: 1,173,596. Centrifugal governors. JOSEPH LUCAS (INDUSTRIES) Ltd. March 1, 1967 [Dec. 9, 1965], No.52220/65. Heading G3B. A speed responsive governor comprises a body 10 within which is mounted a rotor 13 having an orifice 15 through which in use fluid under pressure is intended to pass, the rotor carrying a closure member 16 to control flow through the orifice and a weight 19 to engage the closure member adjacent to the orifice, both the weight and the closure member being mounted on the opposite side of the rotor from the orifice. The orifice provides a by-pass through the rotor to a hollow adjustable stop 21 which returns the fluid to the inlet of a gear-type fuel-pump 11 and adjusts a blade spring 20 connected to a main blade spring 18 urging the closure member towards the orifice. The closure member is secured to the rotor by a pair of bolts 17 and may be arranged to either open or close the orifice with increasing speed.
Patent GB-1223270-A (GB)
Title: Improvements in dyeing hair
IPC: A61K8/49
Filed: 1968-11-05
Abstract: 1,223,270. Hair dyeing compositions. THERACHEMIE CHEMISCH THERAPEUTISCHE G.m.b.H. 5 Nov., 1968 [6 Nov., 1967], No. 52357/68. Heading D1B. Hair dyeing compositions comprise (a) a heterocyclic amino compound of general formula: wherein R 1 is H or an aliphatic resdiue having up to 10 carbon atoms,R 2  is H or a substituent of the first order (as defined) - and X represents the atoms necessary to complete a 5- or 6-membered heterocyclic non aromatic ring, and (b) coupling components which are aromatic amino and or hydroxyl group containing compounds e.g. diamines, phenols, naphthols polyphenols and aminophenols, pyrazolones and acylacetanilides or toluidides compounds. Preferred compounds (a) which may be used as a salt of an acid e.g. hydrochloride are of the tetrahydroquinaline, dihydrobenzoxazine, indolenine, indazolone, and tetrahydroquinoxaline series. The compositions may be in the form of aqueous solutions, emulsions or cream e.g. cream shampoo. Other constituents include anionic and non ionic surface active agents, thickeners, perfume oil and hair conditioning agents. Application is at 15 to 40‹C in weak acid to alkaline  # H optionally with use of an oxidising agent e.g. hydrogen peroxide or an addition product thereof with urea, melamine, or sodium borate.
Patent GB-1071919-A (GB)
Title: Process and apparatus for the registration of coded markings on a magnetisable support
Inventor: LAGERQVIST KARL AKE
IPC: G11B5/00
Filed: 1964-12-23
Abstract: 1,071,919. Recording apparatus. HUGIN KASSAREGISTER A.B. Dec. 23, 1964, No. 52380/64. Heading G5R. An arrangement for registering code marking on a magnetic support, e.g. a tape 5, comprises a support, e.g. a wheel 3 carrying a number of poles 4, corresponding to the code marking, any one of which can be arranged adjacent a counter pole 1 and a permanent magnet 9 movable from a first position in which it is bridged by a short circuitry member 10 to a second position in which it completes a magnetic circuit between pole 1 and one of the poles 4 through the tape 5. The poles may comprise five reference markings (121), Fig. 11 (not shown), and code markings (120) corresponding to one or more of the five reference markings which are mounted in slots around the periphery of the wheel and subsequently coated with a plastics material (27) Instead of moving the tape perpendicular to the axis of the wheel, the code wheel may comprise a number of coaxial discs separated by non-magnetic material. Figs. 4, 12 (not shown), with the tape moved in a direction parallel with the axis. Alternatively a bar may be used in place of the wheel, Fig. 5 (not shown). In. modified arrangements, Figs. 7, 8 (not shown), the magnet (9) is rotated above an axis perpendicular to its length to break or make the magnetic circuit through the tape and the members (1, 2) are movable to engage the periphery of the wheel.
Patent GB-1334189-A (GB)
Title: Drawing frames
Inventor: BAUCH E
IPC: D06B23/02
Filed: 1971-11-11
Abstract: 1334189 Drawing frames NEUMUNSTERSCHE MASCHINEN-UND APPARATEBAU GmbH 11 Nov 1971 [21 Nov 1970 8 Dec 1970 7 Jan 1971] 52450/71 Headings DID and DIN In a drawing frame driven rollers 1, 1' are independently mounted by bearings 2, 3 and 2', 3' on respective ends of a fixed shaft 4, secured at its centre in a machine frame 14. Shaft 4 is bored to admit heating fluid which also serves to lubricate the bearings. The rollers 1, 1' are fixed to gears 16, 16' driven by further gears 20 ,20', these in turn are driven by worm drives 22, 23 and 22', 23' which may be alternatively located inside or outside the machine frame 14. A single worm drive may alternatively be used, Fig. 3 (not shown) and clutches (37), (37') may be included Fig. 4 (not shown). A fluid heater 28 is located in the fluid circuit and a cooler 35 is additionally provided to supply cooled lubricant to the meshing points of the gears. Control valves 30, 30', 33, 26; pressure gauges 31, 31', 24 and a filter 27 are provided. (For Figure see next page)
Patent GB-1536670-A (GB)
Title: Micro blood collection devices
IPC: A61B5/15
Filed: 1975-12-22
Abstract: 1536670 Blood collecting device BECTON DICKINSON & CO 22 Dec 1975 [23 Dec 1974] 52488/75 Heading G1B A micro device for collecting blood comprises a blood sampler cup 10 for receiving and holding the blood, the cup being closed at one end and open at the other end, a removable top adapted to be secured to and close the open end of the cup, a vent 14 into the cup and a capillary tube 13 projecting through the top into the cup with its end positioned proximate to the inner surface of the side wall of the cup, in use of the device the blood flowing directly from the source through tube 13 to the inside wall of the cup in a continuous stream. The top may be flat and provided with a hub above or below the top to support the capillary, or alternatively the top may have a well as shown with a hub 12a. The cup and top may be of polyethylene, polypropylene or polyvinyl  chloride. The capillary tube may be of glass or of plastics material tinted to allow proper flow of blood across its surface, when the capillary tube and top may be an integral moulding.
Patent GB-1096356-A (GB)
Title: Strengthened glass article and method of production
IPC: C03C21/00
Filed: 1965-12-14
Abstract: To strengthen a glass article formed from a parent alkali metal silicate glass in which the primary alkali metal ion has a radius larger than the lithium ion, an encasing surface layer differing in molecular structure is formed by contacting the surface with a salt of an alkali metal of relatively smaller alkali metal ion at a temperature above the strain point of the glass and thereafter exchanging a portion of the smaller ions from the surface layer with ions of larger ionic radius without rearrangement of the glass structure.  The second part of the process may be effected either by heating so that alkali metal ions from the parent inner structure diffuse into the surface layer or by contacting the surface layer with a further molten bath of a salt of the larger ion such as an alkali metal or silver salt, both processes being at a temperature below the strain point of the glass.  Preferably the first ion exchange is effected with a Li salt and the examples give the parent glass as within the following ranges in percentages by weight: SiO2 45-80; Na2O and/or K2O 5-25; Al2O3 and/or ZrO2 5-25; and optionally P2O5 2-20; and the following up to 5, Li2O; unspecified alkali metal oxides; unspecified alkaline earth oxides; Sb2O3, As2O3, PbO, TiO2. A number of examples of glasses, compositions of treating baths and temperature and time schedules are given.
Patent GB-1422639-A (GB)
Title: Injectors
IPC: E21B21/00
Filed: 1972-11-17
Abstract: 1422639 Jet pumps N M LEHTO 8 Aug 1973 [17 Nov 1972] 53195/72 Heading F1E [Also in Division E1] A jet pump has a driving fluid nozzle secured into a pipe 1 and discharging into a divergent insert 3 the annular inlet being connected through a non-return valve 8 to prevent back flow to an inlet which may be fitted with a hopper 6. A manually controlled inlet valve 9 is also provided. The nozzle 2 is shaped and dimensioned as shown in Fig. 2. The dimensions are relative and may be varied proportionally. The pump may be connected in circuit with a circulating pump for cleaning the bore of a well being bored, air, gas or material from the hopper 6 being introduced into the inlet to assist cleaning.