baber/WOPTO huggingface dataset:
Patent GB-1334723-A (GB)
Title: Carburetor having an integrated anti-stall and idle-speed adjustment mechanism
IPC: F02M19/12
Filed: 1971-10-13
Abstract: 1334723 Spray carburetters FORD MOTOR CO Ltd 13 Oct 1971 [31 Dec 1970] 47590/71 Heading F1B [Also in Division F2] A dashpot 36 which retards movement of the throttle valve 16 towards its idling position comprises a plunger 50 mounted in a casing 40, 42 and an adjustable nut 98 on the plunger which engages a lip 66 on the casing to set the stroke of the plunger and thus the idling position of the throttle valve. A restrictor 96 in the plunger 50 controls air flow from the chamber 92 to the chamber 94 on inward movement of the plunger and air flows between the plunger and the diaphragm 44 when the plunger is moved outwardly by the spring 90.
Patent GB-1478548-A (GB)
Title: Horizontal drilling and/or milling machine
IPC: B23Q3/157
Filed: 1974-11-04
Abstract: 1478548 Tool changers; drilling machines SCHARMANN & CO 4 Nov 1974 [14 Nov 1973] 47600/74 Headings B3B and B3C A horizontal drilling and/or milling machine comprises a tool carrier W with a spindle mounted for horizontal and vertical movement, and a tool magazine 12 located laterally of the working position of the tool carrier and forwardly of the tool carrier W, the tools 22 or multiple tool heads 23 being supported in said magazine with their drive axis parallel to the said spindle by means of pins engaging in slots 25 in the magazine 12 and having slots 29 in a flange portion by which means pins 37 in the tool carrier W attach a tool or tool head to the tool carrier, and wherein to effect a tool change the tool carrier is movable from its working position to the magazine and removes a tool 22, 23 by vertical and horizontal movements. The pins 37 have a head 38 so that the pins 37 can be rotated in the slots 29 in unison by a chain drive 40 and then retracted by springs 42 to pull the tool 22 or tool head 23 on to the work carrier W. A fluid pressure means 47, 49 relieves the spring pressure during tool release. The machine comprises a workpiece support 11, which may be a rotary table, a bed 9 along which a slide 8 moves in the X-X direction, a post 2 movable on the slide 8 in the Z-Z direction, and a headstock movable vertically (Y-Y) along the post.
Patent GB-1294686-A (GB)
Title: A vehicle gearbox lubrication system and method
Inventor: STOTT WALTER
IPC: F16H57/04
Filed: 1969-09-27
Abstract: 1294686 Lubricating SOUTHEAST LANCASHIRE & NORTH EAST CHESHIRE PASSENGER TRANSPORT EXECUTIVE 29 Sept 1970 [27 Sept 1969] 47645/69 Heading F2A The main gear-box of a vehicle is connected to an auxiliary gear-box and the two gear-boxes are connected so that lubricant circulates through them. The main gear-box 10 is lubricated by a pump 12 which feeds lubricant through outlets 13. The lubricant then passes through an aperture 18 in the auxiliary gear-box and sucked through a drain port 21 and a pipe 20 to the pump whence it is recirculated. An oil cooler may be provided between the pump and the outlets 13, and a filter in the aperture between the main gear-box and auxiliary gearbox.
Patent GB-1072857-A (GB)
Title: Method of reducing the burning time of an igniter charge for tracer ammunition
IPC: F42B12/38
Filed: 1963-12-04
Abstract: 1,072,857. Tracers. RHEINMETALL G.m.b.H. Dec. 4, 1963 [Dec. 10, 1962], No. 47980/63. Heading F3A. A method for reducing the burning time of an igniter charge for tracer ammunition consists of compressing a layer of igniter charge to reduce its thickness and increase its surface area. A shell case (1) held vertically with its base (2) uppermost is filled first with a powdered tracer charge (3) and then with a disc of compressed igniter charge (4). A ram (5) with a shoulder (5a) and conical portion (5b) is pressed into the case to shape the igniter charge (4) so that it has an increased surface area and a decreased thickness with a correspondingly reduced burning time, the tracer charge becoming ignited after the projectile has travelled about 100 metres from the nozzle. The serrated surfaces on the compressed disc of the igniter charge (4) facilitate ignition of the tracer charge (3). One embodiment described produces a conical. shaped igniter charge with a stepped apex and a wall thickness which increases towards the outer edge. In a form for use in large calibre shells, a threaded case is prepared with tracer and igniter charges as described above and screwed into the base of the shell. The igniter charge can also be supplied in a loose powder form to the shell case.
Patent GB-1256084-A (GB)
Title: Improvements in and relating to vices
Inventor: FUTTER HANS WERNER
IPC: B25B5/00
Filed: 1968-10-10
Abstract: 1,256,084. Vices. H. W. FUTTER. 7 Jan., 1970 [10 Oct., 1968], No. 48137/68. Heading B3B. A vice comprises a G-clamp 1 in which is clamped an assembly of two rods 6, 9 rigidly but releasably secured together substantially at right angles to one another and from which is supported gripping means 14, 15, each rod 6, 9 being capable of independent axial and rotational adjustments. The gripping means includes a rod extension 12. The rods 6, 9, 12 are longitudinally and rotationally adjustable and are gripped by split heads 8 and 11 operated by screws 7, 10 and 13. A key 16 is used to tighten the screws 7, 10 and 13 which is stored in a hole in the head 17 of the G-clamp screw 2. A hole 19 is provided in the G-clamp to receive anvil members 20 of various shape. The anvil is retained by squeezing a resilient bush 23 to grip the sides of the hole 19, or by a retaining ring. The hole 19 may extend through the limb of the G-frame to accommodate a nail or screw 26.
Patent GB-1373234-A (GB)
Title: Optical system for investigating body cavities
IPC: A61B1/00
Filed: 1971-10-18
Abstract: 1373234 Optical apparatus RICHARD WOLF GmbH 18 Oct 1971 [20 Oct 1970] 48280/71 Heading G2J [Also in Division A5] An optical system for investigating body cavities comprises an eye-piece 4, a fibre optic bundle 2 and an objective 1, which is a glass rod wherein the refractive index varies parabolically in cross-section. The bundle may be enclosed in sheath 5, and the fibre optic bundle may be flexible, or rigid e.g. formed of fused fibres.
Patent GB-1355697-A (GB)
Title: Method and apparatus for pressing objects from thermoplastic material-
IPC: B29C45/56
Filed: 1971-10-20
Abstract: 1355697 Moulding gramophone records R RENOUX 20 Oct 1971 [20 Oct 1970] 48851/71 Heading B5A Gramophone records are moulded from preheated thermoplastics granules or cut film by pressing between a plate 2 which is resiliently mounted for limited movement, and a second parallel plate 1 which is (a) urged against the first plate 2 thereby displacing it through part of its movement and applying a first pressure to the plastics material, and (b) after subjecting the material to high frequency mechanical vibrations to effect supplementary heating, urged to apply a higher pressure to the material and to displace the first plate 2 to its limit. The plate 2 is attached to an ultrasonic transducer 22 secured to a ring 26 which can slide in a sleeve 21 against spring 27 until plate 2 reaches a fixed plate 17. The plate 1 is fixed to a support plate 6 attached to a piston 10 via a flexible joint 30 which takes up defects in the meeting of the plates 1 and 2. Cooling water is supplied to channels 5 in plate 1 and cooling air to the transducer through pipe 29. The upper plate 2 may be in four sectors mounted independently on separate transducers.
Patent GB-1523890-A (GB)
Title: Spraying apparatus
IPC: A61D7/00
Filed: 1976-11-26
Abstract: 1523890 Spraying cows' teats ALFALAVAL CO Ltd 26 Nov 1976 [28 Nov 1975] 49022/75 Heading AIM Corrosive disinfectant is fed from a jar 1 to a delivery chamber 10 whenever a valve 4 is opened by a liquid level sensor 7, and is sprayed from nozzles 12 onto a cow's teats when compressed air is supplied to the chamber 10 via a valve 15 controlled by a delay timer 16 actuated either by automatic cluster removal equipment, or by switches at a pre-set position of the rotary milker, or by photo-cells or proximity switches in the exit passage for the cow, or manually. Disinfectant cannot enter the valve 15 because of the relatively low level of the sensor 7.
Patent GB-1442950-A (GB)
Title: Process for the production of hydrogen
IPC: C01B13/02
Filed: 1974-11-13
Abstract: 1442950 Hydrogen production EUROPEAN ATOMIC ENERGY COMMUNITY 13 Nov 1974 [12 Dec 1973] 49080/74 Heading C1A Hydrogen is produced from water by means of a cycle of chemical reactions which involve the decomposition of a hydrogen-containing salt of HI and a weak base, e.g. ammonium iodide. The preferred process comprises the following steps: (i) the dissociation of NH 4 I into NH 3 , H 2  and I 2  (ii) the reduction of the I 2  thus formed with SO 2 , H 2 O and NH 3  to produce NH 4 I and (NH 4 ) 2 SO 4 ; (iii) the reaction of the (NH 4 ) 2 SO 4  with Na 2 SO 4  to produced NaHSO 4  and NH 3 , (iv) the decomposition of the NaHSO 4  to give Na 2 S 2 O 7  and H 2 O; (v) the dissociation of the Na 2 S 2 O 7  to produce Na 2 SO 4  and SO 3 ; (vi) the dissociation of the SO 3  to give SO 2  and O 2 ; (vii) the recycling of the NH 4 I of step (ii) to step (i); (viii) the recycling of the NH 3  of steps (i) and (iii) to step (ii); (ix) recycling the Na 2 SO 4  of step (v) to step (iii), and (x) recycling the SO 2  of step (vi) to step (ii).
Patent GB-1477329-A (GB)
Title: Thermoplastic resin composition based on a graft copolymer  of an ethylene-propylene rubber
IPC: C08L23/00
Filed: 1974-11-13
Abstract: 1477329 Compositions based on grafted ethylene - propylene rubbers SUMITOMO CHEMICAL CO Ltd 13 Nov 1974 [13 Nov 1973] 49093/74 Heading C3G A thermoplastic resin composition comprises a graft copolymer of a rubber component comprising an ethylene-propylene rubber with an aromatic vinyl compound or a graft copolymer of a rubber component comprising an ethylene-propylene rubber with an aromatic vinyl compound and a vinyl cyanide compound; 0À5-10% by weight of a mineral oil having a specific gravity of at least 0À905; and an antixodiant and/or ultra-violet absorber. The ethylene-propylene rubber may be a binary copolymer of ethylene and propylene or an ethylene propylene terpolymer wherein the third component is dicyclopentadiene, ethylidenenorbornene, 1,4-hexadiene, 1,5-hexadiene, 2 - methyl - 1,5 - hexadiene, 1,4 - oycloheptadiene, or 1,5 - cyclooctadiene. The composition may also contain another rubber component, e.g. polybutadiene, polyisoprene or a styrene-butadiene rubber. The mineral oil is suitably a naphthenic or aromatic oil. Examples of suitable antioxidants are phenolic thioether, amine, phosphite and dithio acid salt antioxidants whilst suitable ultra-violet absorbers are salicyclic acid, benzophenones and benzotriazoles.
Patent GB-1369103-A (GB)
Title: Coupling for connecting an insulating housing of an electric device to trunking
IPC: H01R25/16
Filed: 1972-10-25
Abstract: 1369103 Trunking connections NORDISKE KABELOG TRAADFABRIKER AS 25 Oct 1972 [25 Oct 1971 29 Oct 1971] 49241/72 Heading H2C An arrangement for coupling an insulating housing 9 (e.g. of a switch or socket) to a wiring duct having a base 1 and cover 5 comprises a coupling arrangement, e.g. members 6 and 11, which releasably connect the duct base 1 to the housing 9 and cover an opening in the duct, e.g. an opening which enables wires to pass from the duct to the housing. As shown, duct cover 5 engages over a flange 4 on the base and is a snap fit in a groove 3. A discontinuity is provided in the cover 5 where wires have to pass from the duct to the housing 9. At this discontinuity a member 6 is mounted on flange 4, the member having dovetails 8 or other means for engaging the housing 9 which may, e.g., be screwed to a wall. A short cover 11 with edge flanges 13 is then placed over the opening in the cover 5 and secured to member 6 e.g. by a screw 15. If no housing 9 is provided adjacent a coupling arrangement a temporary cover (20), Fig. 2 (not shown), may be provided until the outlet is needed.
Patent GB-998639-A (GB)
Title: Improvements in or relating to the purification of acrylonitrile by distillation
IPC: B01D3/34
Filed: 1963-12-13
Abstract: Acrylonitrile is separated from mixtures in which it is associated with acetonitrile, hydrogen cyanide and acrolein by subjecting the mixture to extractive distillation employing as extractant, water having a pH above 5, and maintaining the pH of the base residue from the distillation at above 9 whereby an overhead distillate comprising purified acrylonitrile and water is obtained.  The distillation is preferably carried out employing as extractant, cation permuted water to which has been added sufficient sodium hydroxide to render the pH of the base residue from the column about 10.  The distillate separates into an aqueous phase and an organic phase, the latter comprising acrylonitrile substantially free from acetonitrile and HCN, but containing a small proportion of acrolein.  A suitable alkali may also be added to the base residue itself.
Patent GB-1137469-A (GB)
Title: Improvements relating to toy cranes
IPC: A63H33/30
Filed: 1967-10-31
Abstract: 1,137,469. Toy crane. LEGO SYSTEM A.S. 31 Oct., 1967 [31 Oct., 1966], No. 49386/67. Heading A6S. A toy crane comprises a base with two side members to constitute a frame, a jib pivotally mounted thereon so as to be swingable in a vertical plane, a reel shaft between said members whereon said jib is pivoted, a lower part of said jib adjacent the frame having a face adapted to contact the upper face of said base in an extreme position of the jib so as to exert a braking force on the reel shaft. In Figure 2 (plan view) the jib 1 is pivoted about the pin 2 which serves as a shaft for reel 5 which winds the cord 6 carrying a hook. Connecting studs 8 may be provided to attach construction kit elements to the crane. The jib is preferably of the shape shown in Fig. 3, so that there are two extreme positions 1' and 1" in which the flat face la contacts the base 4 so that the downward load force P acting about an imaginary fulcrum O subjects the shaft 2 to a frictional braking force due to the vertical component force Q.
Patent GB-1247554-A (GB)
Title: Benzodiazepine derivative preparation
Inventor: CHRISTENSEN SVEND AGE
IPC: C07D243/24
Filed: 1968-10-21
Abstract: 1,247,554. Benzodiazepine derivative preparation. DUMEX A.S. 20 Jan., 1970 [21 Oct., 1968], No. 49795/68. Heading C2C. 7 - Nitro - 1,2 - dihydro - 3H - 5 - phenyl - 1,4- benzodiazepin-2-one is prepared by dehydrating a compound of the formula (X = H, NO 2 ) and, when X = H, effecting simultaneous nitration. The preparation of the starting materials and 1,3 - dihydro - 2H - 1,4 - benzodiazepin - 2 - one 4-oxide is described. Reference has been directed by the Comptroller to Specifications 972,968 and 1,154,315.
Patent GB-1244495-A (GB)
Title: Photographic colour printing apparatus
IPC: G03B27/73
Filed: 1968-10-22
Abstract: 1,244,495. Photographic colour printing control. AGFA-GEVAERT A.G. Oct. 22, 1968 [Oct. 27, 1967], No. 50110/68. Heading G2A. In a photographic colour printing apparatus which includes a photo-electric exposure regulating device for separately terminating simultaneously commenced exposures to light of each primary colour, the termination of the shortest and/or intermediate exposure shortens the period of the remainder of the or each continuing exposure relatively to the period that would have been determined by the exposure regulating device in the absence of a prior termination, in order to take account of colour dominants in the original in an approximation of the so-called under-correction method. Photo-sensitive secondary electron multiplier tubes 5, 6, 7 charge capacitors, e.g. 23, so that the potential thereof changes at a rate corresponding to the intensity of illumination in the corresponding primary colour. The potential is compared in a threshold device 32 with a potential derived from a voltage generator 27, and when a certain ratio between the potentials is reached a relay 11, 12 or 13 is energized. Associated contacts 11a, 12a, 13a are closed to short variable resistances 8, 9, 10 in the primary circuits of the feed transformers 2, 3, 4, thus increasing the speed of voltage rise on the capacitors still being charged. Alternatively, the energization of the relays may bridge resistors in the generator 27 to lower the value of the comparison potentials. Exposure for each primary colour is terminated by switching off the current supply to a lamp or by pivotting a subtractive filter into the printing light beam.
Patent GB-1299506-A (GB)
Title: Power-assisted rack-and-pinion steering-gear for motor vehicles and rotary valves for use therein
Inventor: MILLARD BARRY JOHN
IPC: B62D5/22
Filed: 1970-10-22
Abstract: 1299506 Vehicle power steering ADWEST ENG Ltd 13 Oct 1971 [22 Oct 1970] 50262/70 Heading B7H An hydraulic, power-assisted rack-and-pinion steering gear comprises a rotary valve 1 having a housing 6, a valve sleeve 3 and a rotor member 2. Sleeve 3 is formed integrally with the pinion 4 which meshes with rack 5. Rotor member 2 has an extension 2a which receives one end of a torsion bar 8, the other end of which is secured in a counter-bore 9 in the valve sleeve 3.
Patent GB-1452065-A (GB)
Title: Method for the manufacture of polyurethanes
IPC: C07C239/00
Filed: 1972-11-01
Abstract: 1452065 Polyurethanes IMPERIAL CHEMICAL INDUSTRIES Ltd 22 Oct 1973 [1 Nov 1972] 50304/72 Heading C3R [Also in Division C2] Polyurethanes are prepared by reacting an organic polyisocyanate with an organic polyol in the presence of a tertiary amine having the formula where Z is oxygen or sulphur, and R is hydrogen, an optionally substituted alkyl, cycloalkyl, aryl, aralkyl or heterocyclic radical or a group of the formula -NHR<SP>1</SP> where R<SP>1</SP> is hydrogen or an optionally substituted alkyl, aryl, aralkyl or heterocyclic radical. Specified tertiary amines are N - (3 - dimethylaminopropyl)formamide, N,N<SP>1</SP> - bis - (3 - dimethylaminopropyl)urea and N-(3-dimethylaminopropyl)-N<SP>1</SP>-phenylthiourea.
Patent GB-1091768-A (GB)
Title: Method of and apparatus for producing cutting tools,gears and the like
Inventor: LEHMANN HANS-JURGEN
IPC: B23K31/02
Filed: 1964-12-10
Abstract: 1,091,768. Making cutting tools, taps, gears; welding by pressure. ZENTRALINSTITUT FœR SCHWEISSTECHNIK DER DEUTSCHEN DEMOKRATISCHEN REPUBLIK. Dec. 10, 1964, No. 50331/64. Headings B3A, B3C, B3K, B3N and B3R. In making cutting tools, e.g. milling cutters, drills or reamers, gears and the like strips of tool steel are flash-butt welded to the periphery of a pre-heated carbon steel bar. A carbon steel bar 5 is clamped in a rotary indexing and advancing head 9 and its end is heated to say 600‹ C. by an induction coil 6. The bar 5 is advanced and clamped in a welding clamp 8 of a flash-butt welding machine and strips of tool steel are fed from a magazine to the other welding clamp 7 and are welded to the bar 5 as the bar 5 is indexed by the head 9. Subsequently the welded bar end is advanced to be annealed by an induction coil 4 while following portions of the bar are preheated and welded. A parting-off tool 13 cuts the bar into blanks which are machined and heat treated to form the required article.
Patent GB-1085028-A (GB)
Title: Process for the preparation of methyl methacrylate
Inventor: SOLTESZ LASZLO
IPC: C07C67/327
Filed: 1964-12-10
Abstract: Methyl methacrylate is prepared by reacting acetone cyanhydrin with anhydrous sulphuric acid or oleum, hydrolysing and esterifying the resultant mixture by adding water and methanol, distilling and condensing the mixture, adjusting the pH of the two phase condensate to 6-11 by addition of an alkaline solution, separating the two phases and purifying the ester phase.  It is preferred to adjust the pH of the condensed phase to 8.5-9.5. The hydrophilic phase remaining after the separation of the ester phase may be recycled to the water/methanol mixture used in the hydrolysis step. The ester phase may be purified by extraction with water to remove methanol, followed by distillation.  It is preferred to operate in the presence of a polymerization inhibitor, e.g. hydroquinone.  The process is illustrated by reference to a diagrammatic flow sheet (not shown).
Patent GB-1528814-A (GB)
Title: Electrical signal generators
IPC: H03J7/06
Filed: 1975-12-09
Abstract: 1528814 Frequency synthesizers RACAL INSTRUMENTS Ltd 28 Oct 1976 [9 Dec 1975] 50379/75 Heading H3A [Also in Division G4] A signal generator comprises an adjustable frequency generator e.g. a phase lock loop arrangement (Figs. la, 1b not shown), a control arrangement 160, 182 for adjustably pre-selecting the size of a desired step change in the generator output frequency without causing such change and an initiating device 162, 168 operative when activated to cause a step change in the output frequency. The generator arrangement includes a programmable divider 42 whose division ratio is define by the count of a counter 174. In response to the operation of a frequency change control 162, an up/down detector sets the counter 174 to count up or down and a device 178 is also enabled to open a gate 176 so that clock pulses are applied to the counter 174 and to a further counter 182 defining the step size and set by the control switches 82, 160. The gate 176 is closed when the counter 182 reaches zero count. A memory 190 and a single step unit 196 prevents the frequency generator going out of its control range. A range switch 82 enable selection of the desired output frequency range and interpolation between frequency steps in each range is also optionally obtainable. The generator output may also be amplitude or frequency modulated as in Figs. 1a, 1b (not shown).
Patent GB-1215943-A (GB)
Title: Polymerisation process
Inventor: BOURNE KENNETH HUGH
IPC: B01J23/755
Filed: 1967-11-07
Abstract: 1,215,943. Dimerizing olefins. BRITISH PETROLEUM CO. Ltd. 26 Aug., 1968 [7 Nov., 1967], No. 50491/67. Addition to 1,069,296. Heading C5E. Olefins are dimerized in the presence of a catalyst prepared by (a) contacting a silica gel containing surface hydroxyl groups capable of ionizing and exchanging, or a material containing such silica gel, with an aqueous ionic solution of a salt of aluminium whereby ions are incorporated on the oxide surface, (b) contacting the oxide, before or after step (a), with an aqueous solution containing nickel ions to incorporate nickel on the oxide surface, and (c) activating the products of steps (a) and (b) by heating in a stream of inert gas, e.g. N 2 . The dimerization of propylene is exemplified.
Patent GB-1177353-A (GB)
Title: Improvements relating to Record playing apparatus
Inventor: ROBINSON PAUL BARON HENN
IPC: G11B17/04
Filed: 1966-11-11
Abstract: 1,177,353. Back-spacing for disc record players. DISCATRON Ltd. 7 Feb., 1968 [11 Nov., 1966], No. 50615/66. Heading G5R. The invention provides record-playing apparatus comprising a stylus assembly adapted for rectilinear movement across a record disc and having manually-operable means which includes a member extending parallel to the stylus path; operation of the means at any time during playing of the disc causes the member to move firstly into engagement with the stylus assembly, and then so as to lift the assembly from the record groove, move it linearly a predetermined distance towards the disc periphery and return the assembly to the groove, and finally so as completely to disengage from the stylus assembly. The disclosure is identical with that provided in Specification 1,177,352.