baber/WOPTO huggingface dataset:
Patent GB-1311395-A (GB)
Title: Method and apparatus for stacking of flexible workpieces
IPC: A41H43/02
Filed: 1971-11-19
Abstract: 1311395 Delivering sheets DURKOPP-WERKE GmbH 19 Nov 1971 [20 Nov 1970] 53736/71 Heading B8R Sheets 4, Fig. 1, such as pattern pieces from a sewing-machine 1, are delivered over an edge 3 of a work-table 2 so as to hang down between a stack carrier 8 on a lever 9 pivoted at 10 to fixed beams 6, 7 and a transverse arm portion of an adjusting member 15 fixed to a lever 14 also pivoted at 10. A starting impulse, effected by an operator or automatically by a photo-cell, causes release of air in a cylinder 17, whose piston, journalled in an eye 16 of the lever 14, moves outwards to an intermediate position, thus moving the lever 14 counterclockwise so that the arm portion of the member 15 presses the sheet against the carrier 8, which is also moved by the member 15 a distance equal to the thickness of a sheet, the lever 9 thus moving slightly counterclockwise. A sprocket 27 rotatable on the lever 14 meshes with a chain 28 connected at its opposite ends by springs 29 to the lever 14 and to a clamping member 21 pivoted at 20 to the beam 6 and having a transverse arm section resting against the carrier 8 or any sheets already carried thereby. On connecting the cylinder 17 to a source of compressed air, since the lever 14 is precluded from further movement by a stop 14<SP>1</SP>, the cylinder, which is pivoted to a holding fork 18 also pivoted at 20 and fixed with respect to the member 21, moves to the right, thus moving the arm section of the member 21 away from the carrier 8 and clear of the path of a throw-out member 32, while tensioning the springs 29, 30. Further movement of the cylinder causes the chain to rotate the sprocket counterclockwise, whereupon the throw-over member 32, Figs. 1 and 4, which is fixed with respect to the sprocket and includes a transverse arm portion, first to move counterclockwise to the broken line position, thus bringing the upper part of the sheet 4 across the top of the carrier 8, and then to a leftward position, releasing the sheet to drape over the carrier. The member 21, on reversal of the cylinder 17, then returns to clamp the sheet or sheets on the carrier, and the member 15 returns to the right of the path of the next sheet. Thus, on the delivery of each sheet, the carrier 8 and lever 9 are swung counterclockwise by the member 15, the thickness of one sheet, a retaining coil-spring exerting a restrictive force on the pivot of the lever 9 retaining the latter in each position, until at the completion of a stack a lever 13 is rotated to release the tension in the coil spring, whereupon a weaker spring 12 returns the lever 9 to its initial position. The member 32 may be replaced by an air blower nozzle arrangement. The carrier 8 may alternatively move in horizontal steps along rails.
Patent GB-1158657-A (GB)
Title: Reciprocating Piston Compressor
IPC: F04B39/12
Filed: 1967-11-29
Abstract: 1,158,657. Securing cylinder heads. DANFOSS A/S. 29 Nov., 1967 [17 Dec., 1966], No. 54300/67. Heading F2T. [Also in Division F1] A reciprocating piston compressor has a cylinder 4 forming part of a housing 5 and closed by a cylinder head 1 held in position by a metal strap 20 surrounding both the head 1 and housing 5, the strap being tensioned by wedges driven between the strap and the housing 5 or head 1. As shown the head 1 is provided with recesses 22 for receiving conical wedges 21 which may be stepped or grooved
Patent GB-1162734-A (GB)
Title: Improvements in Carburettors
IPC: F02M7/17
Filed: 1967-12-01
Abstract: 1,162,734. Spray carburetters. DEUTSCHE VERGASER G.m.b.H. & CO. K.G. Dec. 1, 1967 [Dec. 14, 1966], No. 54757/67. Heading F1B. In a constant-suction type carburetter, the piston 3 can be lifted, to prevent excessive enrichment at hot starting, by opening the throttle valve 18 wide open, a lever 21 on the throttle valve spindle actuating a piston lifting rod 22 when the throttle valve is nearly wide open. The rod 22 is urged downwards by a spring 25 and when actuated by lever 21, contacts a projection 23 on the piston 3.
Patent GB-1143430-A (GB)
Title: New cyclobutene derivative
IPC: A61K31/00
Filed: 1966-12-12
Abstract: 1,143,430. 1 - Ethylaminomethyl - 5 - methoxy-benzocyclobutene. CIBA Ltd. 12 Dec., 1966 [28 Dec., 1965], No. 55556/66. Addition to 1,042,197. Heading C2C. 1 - Ethylaminomethyl - 5 - methoxy - benzocyclobutene, a novel compound, and its acidaddition salts, are prepared by (1) reduction of the 1-acetylaminomethyl compound; (2) hydrogenolysis of the corresponding N-aralkylated compounds; or (3) reaction of ethylamine with reactive esters of the appropriate hydroxymethyl compound. 1 - Acetylaminomethyl - 5 - methoxy - benzocyclobutene is prepared by acetylation of the amine. 1 - (N - benzyl - ethylaminomethyl) - 5 - methoxy - benzocyclobutene hydrocFdoride is prepared by reducing 5-metlwxy-benzocyclobutene-1- carboxylic acid (prepared by hydrolysis of the nitrile) to 1 -hydromethyl-5-methoxy-benzocyclobutene, converting this to the p-toluenesulphonate and reacting this with N-ethyl-benzylamine. The compound of the invention, which is stated to have analgesic and anti-tussive properties, and its salts, may be made up into pharmaceutical compositions with suitable carriers. Tablets are described.
Patent GB-1246619-A (GB)
Title: Method and apparatus for extracting liquid samples from vessels under vacuum
Inventor: MERCER THOMAS ROBERT JAMES
IPC: G01N25/14
Filed: 1967-12-11
Abstract: 1,246,619. Sampling liquids. BUSH BOAKE ALLEN Ltd. 6 Dec., 1968 [11 Dec., 1967], No. 56256/67. Heading B8N. [Also in Division F1] Liquid samples are taken from a vessel 4 under vacuum by a dip pipe assembly comprising concentric pipes 1, 2 interconnected at 5 and located in the vessel with interconnection 5 below the liquid surface, the pressure in the dip pipe assembly first being equalized with that in the vessel by opening a valve 11, and then liquid being admitted to the dip pipe assembly by opening a valve 6, the liquid in the dip pipe assembly being discharged through pipe 2 to a sample receiver 16, after closure of valve 6 and opening of a valve 14, by admitting pressurized gas, inert to the liquid, through valve 9 into pipe 1. Receiver 16 has a vent 17, a tapping-off valve 19 and a valve 20 for returning the liquid to vessel 4. Valve 6 may comprise a valve member connected to the bottom of pipe 2 and co-operating with an apertured seat in the bottom of pipe 1, Figs. 2 and 3 (not shown), the valve being operated by raising and lowering pipe 2 relative to pipe 1 by a lever 13, which may be spring or solenoid-assisted. The dip pipe assembly may be arranged to be raised or lowered in the vessel to take samples at different levels. Alternatively, a bent dip pipe assembly may be mounted so that its axis at its point of entry into the vessel is not vertical, so that rotation of the assembly permits sampling at different levels. The valve 6 alternatively may be actuated by a screw motion, by gear mechanism or electrically.
Patent GB-1326580-A (GB)
Title: Multi-colour electrophotography
IPC: G03B27/32
Filed: 1970-11-26
Abstract: 1326580 Electro-photography FUJI PHOTO FILM Co Ltd 26 Nov 1970 [27 Nov 1969] 56291/70 Heading G2H In the production of a multi-colour print on a photo-conductive member 6 from a transparency 4 in three successive stages, each involving exposure to primary light using a system comprising light source 1, condensers 2 and 2', and colour filter 3, a diffusing screen 7 is employed during the exposures to red and green light, said diffusing screen having a greater power of diffusion than any employed during the exposure to blue light.
Patent GB-1462062-A (GB)
Title: Laser anemometer probes
IPC: G01S17/50
Filed: 1973-12-05
Abstract: 1462062 Velocity determination UNITED KINGDOM ATOMIC ENERGY AUTHORITY 20 Nov 1974 [5 Dec 1973] 56462/73 Heading H4D A laser Doppler anemometer probe comprises a cooling means which encompasses a region of the probe through which the laser beams and reflected light beams pass. As described, the probe comprises a stainless steel housing of hollow cylindrical form, about 3 metres long. At one end is a prism 2, which splits a laser beam 3, directed through an opening 4, into two parallel beams 5, 6. At the other end of the housing is lens 7, which focuses the beams 5, 6 to a point 8. Outside the lens 7 is a protective quartz plate window 9. A mirror 10 inside the housing 1 receives light reflected from the point of intersection 8 of the beams 5, 6 and directs it via a lens 11 to a light detecting system which monitors any frequency change due to the Doppler effect. The velocity of flow of gas at said point may thereby be determined. The cooling means, which enables the probe to be used when inserted in a furnace, comprises an inner annular air jacket 15 constituted by a cylindrical wall 14 spaced away from the housing 1. Air flowing from the jacket 15 is deflected by a deflector 16 over the outer face of the window 9. An outer water jacket 13 is constituted by the wall 14 and an outer cylindrical wall of about 7 cms. diameter. The jacket 13 has an inner cylindrical partition wall 17 and inlet and outlet openings 18, 19 so positioned as to ensure that water enters an innermost annular space 20, flows along the jacket to the end of the partition 17, and then flows back along an outermost annular space 21. A heat exchanger may be provided for cooling the water after it has passed through the jacket 13.
Patent GB-1326776-A (GB)
Title: Water-soluble fibre-reactive monoazo dyestuffs and processes  for their manufacture
IPC: C09B62/491
Filed: 1970-12-02
Abstract: 1326776 Monoazo dyes FARBWERKE HOECHST AG 2 Dec 1970 [4 Dec 1969] 57363/70 Heading C4P The invention comprises water-soluble fibre reaction dyes having the formula wherein K represents the radical of a coupling component of the benzene, naphthalene, acetoacetic acid arylamide, pyrazolone or dihydroxyquinoline series which may contain one or more sulphonic acid and/or carboxylic acid groups; R is hydrogen, alkyl or aryl; n is 0 or 1 and X represents a group of the formula wherein R<SP>1</SP> is H or alkyl; R<SP>11</SP> is H, alkyl or phenyl and Y and Y<SP>1</SP> which may be the same or different each represents a fluorine or chlorine atom. The dyes may be prepared by diazotization and coupling. Alternatively the reactive cyclobutane carbonyl radical may be introduced by acylation of the required aminoazo compound. The dyes give orange, red, violet and yellow shades on leather, synthetic polyurethane, natural and synthetic polyamide and natural and regenerated cellulose fibres. Reference has been directed by the Comptroller of Specifications 1,089,993, 1,103,422, 1,103,423 and 1,123,804.
Patent GB-1396809-A (GB)
Title: Web severing apparatus
IPC: B26F3/00
Filed: 1973-12-12
Abstract: 1396809 Severing webs by bursting LAMSON INDUSTRIES Ltd 12 Dec 1973 [26 Jan 1973] 57491/73 Heading B4B A web severing apparatus comprises a constant tension infeed mechanism 20 for a web W, a pair of high speed pull rolls 65, 66 for gripping successive new ends of the web and bursting sheets therefrom, the resistance of the web to the pulling force of the pull rolls being solely effected by the retarding effect of the constantly applied tension of the normal feed of the infeed mechanism. The web, of e.g. of forms having edge perforations, is fed by a pin feed belt 21 past an adjustable scrubbing roller 30, over a supporting roller 40 to the high-speed pull rolls 65, 66. A series of rubber-faced rolls 52 are rotatably mounted on a pivoted frame 45; the frame also carries a knife 50 against which the web is caused to be separated when in the position of the frame shown in Fig. 3. A series of larger diameter rolls 60 are also rotatably mounted on the frame. The high-speed rolls 65, 66 are mounted on a housing which is adjustable towards and away from the bursting station 15. Extensible guide members 80, 86 are provided for controlling the movement of the web before its leading end reaches the rolls 65, 66. When bursting paper webs, the frame 45 is located in the position shown in Fig. 3, the severance taking place at the knife 50. When it is required to sever heavier weight material, e.g. cards interconnected by lines of weakness, the frame 45 is pivoted to bring the rolls 60 into contact with the roll 40, the knife and rolls 52 being lifted to an inoperative position, Fig. 4 (not shown); in the latter case the cards are severed at the nip between rolls 60 and 40.
Patent GB-1410380-A (GB)
Title: Tone control circuit
Inventor: HUSZTY D
IPC: H03G5/16
Filed: 1972-12-14
Abstract: 1410380 Amplifier circuits ELEKTROAKUSZTIKAI GYAR 14 Dec 1972 [15 Feb 1972] 57858/72 Heading H3W A tone control circuit comprises: an amplifier having inverting and non-inverting inputs; resistors R<1>1, R2 connecting the inputs respectively to earth; a feedback resistor R<1>2 connected between the output and the inverting input; and a potential divider P1 or P2 connected between the two inputs with its tapping point connected to earth via a resistance/reactance circuit. For low frequency control, Fig. 3, the resistance/reactance circuit includes inductive reactance L and a resistance capacitance circuit C1, R1 connected between a signal input terminal and the non-inverting amplifier input. For high frequency control, Fig. 8, the reactance is a capacitor C, and the resistance-capacitance circuit comprises a series resistor R1 and a shunt capacitor C2. For more complex control, various combinations of L, C, R may be used in the resistance-reactance circuit, and the resistance capacitance circuit may comprise series and shunt capacitance Fig. 16 (not shown), a number of potential dividers, each with its own resistance-reactance circuit may be connected in parallel, Figs. 12, 14 (not shown), and a number of such tone control circuits may be connected in parallel Figs. 18, 19 (not shown). The potential divider may comprise two fixed resistors Fig. 11 (not shown), and the input signal may be applied via a transformer.
Patent GB-1309956-A (GB)
Title: Open end roving spinning and spinning and twisting machines
IPC: D01H4/06
Filed: 1970-12-07
Abstract: 1309956 Open end spinning and twisting machines D W MAXHAM 7 Dec 1970 [8 Dec 1969] 57915/70 Heading DID Drafted lengths of fibrous material are fed to and loaded along the length of a rotating twist needle 182 to form thereon a continuous length 194' which is twisted as it is withdrawn from the end of the needle 182. As shown in Fig. 1, fibrous material is fed from a supply creel 24 to a draft roll assembly 22 where it is broken into predetermined lengths. The drafted lengths are carried between the adjacent flights of two juxtaposed conveyer belts 54, 56 for lateral delivery to a twist belt 62 which feeds them to the needle 182. The belts 54, 56, at their ends adjacent the twist belt 62, are respectively entrained over a pair of pulleys 52 which are each rotatably mounted on a respective one of a pair of parallel mounted rods 46 (only one is visible in Fig. 1). The rods 46, and hence also the pulleys 52, are reciprocated by a cam 34 actuated mechanism timed so as to cause the drafted lengths to be fed to the twist belt 62 from bottom to top. The formation and delivery of the continuous length of fibrous material 194 is aided by a rotating drum 184 mounted adjacent to the needle 182. The drum 184 includes a plurality of segments (309) which form its cylindrical outer surface and which are reciprocated in a vertical direction by a cam (306) so timed that each segment (309) moves downwardly as the rotation of the drum 184 takes it past the needle 182. Preferably the needle 182 is hollow and perforated, and has suction applied to its top open end to aid the retention of the drafted lengths and the resultant continuous length of fibrous material 194 thereto. A modified twist needle 182", Fig. 17, is open at both ends and enables a yarn 338 to be fed therethrough and to have the continuous strand 340, formed by the needle, twisted about it. In another embodiment, Fig. 21, for producing a multi-ply yarn, two needles 182 are rotated both about their own axes and around the circumference of a rotating discharge drum 354, each contacting the flight 156 of the twist belt 62 in turn to be fed with drafted lengths of fibrous material. Thus, two continuous yarns 402', 404' are produced and are twisted around a core yarn 400' fed through a hollow central shaft 376 about which the drum 354 rotates.
Patent GB-1372216-A (GB)
Title: Semiconductor device manufacture
IPC: H01L21/48
Filed: 1971-12-14
Abstract: 1372216 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 Dec 1971 [17 Dec 1970] 57939/71 Heading H1K The inner ends of the leads 4-7 of a lead frame for a semi-conductor device 21 are initially connected by a connection strip, which may itself be frame-shaped. During assembly the connection strip is cut between adjacent leads, e.g. by clipping or by means of a laser beam, thus providing each lead 4-7 with an enlarged inner end by which it is connected to the contacts 22 of the device 21, e.g. via wires 23. The enlarged inner ends of the leads 4-7 are insulated from each other, either merely by virtue of the material removed during the cutting process, or by bending at least some of the lead ends out of the plane of the lead frame, e.g. as shown. The lead ends may also be twisted with the same effect. The assembly is encapsulated in an envelope 24 of synthetic resin. The semi-conductor body 21, which may contain a transistor or an integrated circuit, is mounted on a support 1 which may, as shown, be integral with the lead frame, or which may be welded thereon. In the former case the entire lead frame is made of Fe-Co-Ni alloy, whereas in the latter case only the support need be of this material, the rest of the frame being Fe-Ni alloy or Cu and both support and frame being Au-plated. The lead frame may itself be combshaped, and the interconnection strip may comprise two separate parts.
Patent GB-1212809-A (GB)
Title: Process for preparing meta-halotoluenes
IPC: C07C17/358
Filed: 1969-11-27
Abstract: 1,212,809. Isomerizing halogenated toluenes. GULF RESEARCH & DEVELOPMENT CO. 27 Nov., 1969 [20 Dec., 1968], No. 58177/68. Heading C2C. The isomerization of o- or p-halotoluenes to m-halotoluenes is effected by treating the o- or p-halotoluene's with a halobenzene carrying the same halogen as the halotoluene in the presence of anhydrous liquid hydrogen fluoride and boron trifluoride. Preferably, the reaction is effected at 100-140‹ C. under sufficient pressure to maintain a liquid phase. Comparative examples are given.
Patent GB-1443547-A (GB)
Title: Metal oxide/azide gas generating compositions
IPC: B60R21/26
Filed: 1973-12-17
Abstract: 1443547 Gas generating compositions CANADIAN INDUSTRIES Ltd 16 Dec 1974 [17 Dec 1973] 58269/73 Heading C1D A gas generating composition suitable for inflating the bag of an automobile passive restraint system comprises a mixture of nickel oxide or iron oxide (e.g. Pe 2 O 3 ) and an azide of an alkali metal or alkaline earth metal. On burning, the composition forms nitrogen gas and a solid residue in the form of a sintered mass. The composition may be made by compressing the dry ingredients into tablets or by mixing the ingredients with water or aqueous ethanol, forming the plastic mass into granules, drying the granules, and screening to obtain a fraction of the desired particle size. A small quantity of clay may be included in the composition.
Patent GB-1217055-A (GB)
Title: Improvements relating to the elimination of torsional lash in an axially movable steering column
IPC: B62D1/19
Filed: 1968-12-09
Abstract: 1,217,055. Steering columns. BENDIX CORP. 9 Dec., 1968 [14 Dec., 1967; 18 July, 1968], No. 58346/68. Heading B7H.  In an axially-adjustable collapsible steering column comprising two telescoping shafts 12, 16 having respectively a hexagonal cross-section and a corresponding hexagonal bore, a coupling device 18 tending to cause rotation of the shafts 12, 16 relative to one another to eliminate torsional lash therebetween, comprises wedge blocks 22 which are disposed in radial slots 20 in the shaft 16 and each have a first surface 42 adjustably urged against the opposing surface 24, 26 of the shaft 12 at an off-centre location by co-operation of an inclined second surface 40 with an axially-extending ramp 30 on a collar 28 adjustable axially of the shaft 16 by a nut 34. The ramps 30 are angled transversely of the shaft axis so that the load exerted by each wedge block 22 on the shaft 12 is concentrated at that edge 44 of the block surface 42 most distant from the centre of the surface 24, 26 on the shaft 12. The other edge 46 of each surface 42 is skewed with respect to the shaft axis to ensure proper orientation of the block. Ledges 48, 50 on each wedge block 22 increase the area of the inclined surface 40 and limit the load exerted against the shaft 12. The surface 42 of each wedge block 22 may be coated with a friction reducing plastics material. In another embodiment, Fig. 5 (not shown), there is only a single wedge block which is axially loaded by a spring and an adjusting screw provides for variably pre-loading the spring. In a further embodiment, Fig. 7 (not shown), the spring acts on the wedge block through a secondary wedge.
Patent GB-1354429-A (GB)
Title: Curable compositions containing a polyene and a polythiol
IPC: C08G75/04
Filed: 1972-12-20
Abstract: 1354429 Polymerizable compositions W R GRACE & CO 20 Dec 1972 [10 Jan 1972] 58804/72 Heading C3R [Also in Division H1] A liquid composition which solidifies by polymerization brought about by actinic radiation or other free radical generator, comprises (1) a polythiol having at least two thiol groups, (2) a polyene which is (i) of formula or (ii) of formula  or (iii) of formula or (iv) a mixture of compounds of formulae where n is 0 or an integer, and (3) a silicone oil, the weight ratio of component (1) to component (2) being from 1 : 49 to 49 : 1 and the silicone oil (3) being present in an amount of from 5% to 20% by weight of the total weight of components (1) and (2). The composition also may contain from 0À05 to 10% by weight of a photocuring rate accelerator. The polyenes and polythiols react together to form a cross-linked polythioether. Examples are given. Uses.-A heat- and solder-resistant coating for use as an insulating layer in the manufacture of printed circuits.
Patent GB-1327369-A (GB)
Title: Hydraulic power brake systems for wheeled vehicles
IPC: B60T8/40
Filed: 1971-12-22
Abstract: 1327369 Antiskid braking systems TRW Inc 22 Dec 1971 [22 Jan 1971] 59730/71 Heading F2F Antiskid control apparatus for a vehicle braking system comprises means, in the form of a pump 21, responding to rear wheel speed and providing an output proportional thereto, a master cylinder 36 with hydraulic booster 32 supply braking pressure fluid to the rear wheel cylinders, a sensor 83 responding to front wheel speed and producing an output proportional thereto, a second source of hydraulic pressure provided by the pump of a power steering circuit and a proportioning valve 40 receiving the said outputs and combining the pressures from the master cylinder and the power steering circuit to apply pressure to the front wheel brake cylinders in dependence on the difference between the front and rear wheel speeds to maintain an optimum relationship of front to rear wheel slip. The proportioning valve has first and second elements 42, 43 respectively, the former having a differential piston 46 with smaller areas 47, 48 and larger areas 52, 53 on an intermediate portion 51 and the latter element having a spool 66 with axially spaced sections 67, 68 selectively engageable with seats 69, 70. The sensor pumps 21, 83 are connected to the spool valve and the master cylinder and front wheel cylinders are in communication with the smaller areas of piston 46 so that differences in output cause movement of the spool valve to cause differing pressures to move the piston 46 and adjust the braking pressures.