baber/WOPTO huggingface dataset:
Patent GB-1408615-A (GB)
Title: Gas compressor
IPC: F04D29/66
Filed: 1972-11-03
Abstract: 1408615 Axial-flow compressors; Compressor blades INGERSOLL-RAND CO 3 Nov 1972 [17 March 1972] 50776/72 Headings F1C and FIT A compressor comprises radially bladed rotor means within an annular chamber defined by a housing and extending along the rotor axis, vaned stator means within the chamber replaceably fixed to the housing, shaft means supporting the rotor means at only one axial end of the rotor means, and the rotor means including means for counteracting axial thrust on the rotor means and comprising a web formed on one axial end of the rotor means, and disposed in a recess formed in the housing conduit means in the rotor means communicating the discharge side of the compressor to one side of the web and a passageway formed in the housing to communicate the inlet side of the compressor to the other side of the web, and sealing means between the conduit means and the passageway. Stator vanes 40, Figs. 1 and 3, are pinned into mounting rings 38, each vane being set in elastomer 44 to damp vibration. The vanes are of uniform length, but the mounting rings are of increasing radial depth from the inlet end of the stator to the outlet end. The mounting rings are clamped between a shoulder 92 on a stator cylinder 36 and a retainer ring 96 which is interposed between the stator cylinder and a diffuser shell 72. The diffuser shell is connected to the compressor casing 12 through a compliant seal 76 abutting a shoulder 74, an O-ring 82 abutting a support 78, and a sliding engagement with a ring 84 welded to the casing, whereby the stator is isolated from static distortion of the casing. The rotor shaft 28 is overhung from a bearing and engages a shaft extension 68 through a three-lobed surface, the shaft extension carrying mounting rings 52 retained by a plate 90. Rotor blades 32 are secured to the mounting rings 52 by pins 56, Figs. 4 and 5, passing through bifurcated roots 54. Each blade engages its neighbour through a tang 60 and a recess 62 and through an elastomeric insert 66 engaging arcuate cut-outs 64, whereby the blades can pivot on their pins 56 about a small arc to accommodate vibration. A pair of oppositely disposed inlets 18 communicate with the inlet end of the compressor via an annular chamber 20. Rotor end thrust is counteracted by an annular piston 102 which is subjected to inlet pressure on one side via an annular passage 106 and to discharge pressure on the other side via a leakage path between an inner core 110 of the diffuser and the plate 90 and a passage 114.
Patent GB-1385000-A (GB)
Title: Steaming and pressing appliances
IPC: D06F75/14
Filed: 1973-11-02
Abstract: 1385000 Steam irons SUNBEAM CORP 2 Nov 1973 [7 Nov 1972] 51047/73 Heading D1A An electric iron with a soleplate which can be used in a horizontal or a vertical position comprises a plastics housing 22 overlying and co-extensive with the soleplate 16 and including a reservoir 22b and a handle 20 extending from the top of the housing substantially parallel to the soleplate surface and having an electric power lead extending from its free end. The housing 22 is mounted on the soleplate 16 by apertured brackets 54, 55 to reduce heat conduction, has a flared skirt 92 to maintain the soleplate above a flat surface on which the iron is lain on its side (Fig. 2) and has a slot for a thermostat control arm 50 and a recess 24f for a scale 51. A removable pump 65, which acts as a stopper for the reservoir is fitted at the top of the housing, has a manually operated diaphragm 67, an inlet tube 66b with a check valve 66c and a flexible outlet tube 69 leading through a second check valve in a water conduit 38 to an offset steam generating chamber 31. From the chamber 31 steam passes through tortuous passages 31a to 31g, (Fig. 9) and across water drop retaining ribs 31b and 31j and steps 31k to steam ports 33. A valve 22e permits air to enter the reservoir as water is pumped therefrom.
Patent GB-1504556-A (GB)
Title: Calorimetric probe
IPC: G01N25/48
Filed: 1975-12-12
Abstract: 1504556 Calorimeters LKB-PRODUKTER AB 12 Dec 1975 [12 Dec 1974] 51120/75 Heading G1D A calorimetric probe suitable for measuring heat evolution of a fermentation process, comprises a tube 1 surrounded by a protective cover 6 and two temperature sensors 2, 3 each thermally coupled between the cover and the tube at a fixed distance apart. As shown in Fig. 1 the tube 1, or low conductivity material, is surrounded by, but with an air space 5 between, an aluminium cylinder 4 within the stainless steel cover 6. The sensors 2, 3 each provide signals proportional to the temperature difference between the cylinder 4 and the tube at their respective positions and these are fed into a differential amplifier 7. In use, the probe is immersed in the fermentation fluid and fluid is pumped along the tube 1, a recorder 8 indicating the temperature difference which exists along the tube as a result of the fermentation occurring in the liquid within the tube. In Fig. 2 (not shown) the cylinder 4 is replaced by a thin silver tube (9) spaced from but thermally linked to the protective cover by a ring (10) displaceable along the tube.
Patent GB-1083680-A (GB)
Title: Improvements in or relating to the assembly of dish aerials
Inventor: LUCKIN JOHN
IPC: H01Q15/14
Filed: 1963-12-31
Abstract: 1,083,680. Aerials. MARCONI CO. Ltd. Nov. 18, 1964 [Dec. 31, 1963], No. 51264/63. Heading H4A. In a method of assembling a reflector dish for an aerial, points on prefabricated glass fibre reinforced plastics panels 2, 3, 4 etc. are adjusted to set heights by means of a manometer comprising a flexible tube 21, a sight glass 19 adjacent a reference scale 8, and a sight glass 20 supported in a trolley 14 with wheels 15, 16 running on the surface of the reflector. As described, a supporting back frame of girders 1 is constructed so that the axis of the reflector is vertical. The panels are fixed to the frame by brackets 5 which allow them to be moved tangentially and radially for adjustment. Each panel has a number, preferably three, of spaced apart reference points on its surface, and a marker 17 on the trolley is brought into alignment with each in turn by means of a winch which is connected to it by a cable. Height is measured against the scale 8 by means of the manometer arrangement, and another measurement is taken by means of a graduated steel tape 10 which is attached to the trolley and runs over an axially located block 11 embodying a reference registration mark. The manometer is provided with fluid level adjustment means 22 comprising a stud (28), Fig. 2 (not shown) which acts on a flexible diaphragm (25). The fluid levels in the sight tubes may be detected by means comprising photo-electric cells or capacitative transducers.
Patent GB-1275581-A (GB)
Title: Improvements in or relating to shaft seals
Inventor: CAWTHORN TREVOR LEWIS
IPC: F16J15/44
Filed: 1969-10-20
Abstract: 1275581 Shaft seal COOPER ROLLER BEARINGS CO Ltd 12 Oct 1970 [20 Oct 1969] 51354/69 Heading F2B A shaft seal comprises an annular body 1 of resilient material surrounded by a split ring 3 having interlocking ends 13, 14. The body 1 is of H-section having two outer flanges 4, 5 and two inner flanges 7, 8. The ring 3 is split and is located in a groove 9 in the body 1 between the flanges 4, 5; protrusions 10, 11 on the body engaging a recess 12 in the ring 3. In use, the body 1 is first located on the shaft and the ring 3 is then positioned in the groove 9 and the ends 13, 14 forced over each other to engage flat surfaces 17, 18 whereby the body 1 is frictionally held on the shaft to rotate therewith. The flanges 4, 5 and the ring 3 sealingly co-operate with the shaft housing. The body 1 may be of natural or synthetic rubber and the split ring 3 may be of steel, aluminium or synthetic plastics.
Patent GB-1605266-A (GB)
Title: Optical scanning device
Inventor: LOY FERNAND
IPC: H04N3/08
Filed: 1977-12-09
Abstract: This device ensures the optical scanning of a field of view in two perpendicular directions termed line and frame. The device ensures the convergence of the optical beams emanating from the various zones of the field on a sensitive element. The line scanning means include a fixed toric mirror which is axisymmetric about the axis of rotation of the said line scanning means forming an image of the sensitive element on the said axis of rotation. According to the invention, this mirror is formed of two parts each belonging to the concave surface of a paraboloid, the axes and vertices of the two paraboloids being situated on the said axis of rotation or respectively on the said axis and another axis which is perpendicular to it. Application to night vision. <IMAGE>
Patent GB-1070840-A (GB)
Title: Improvements in or relating to polyurethane foam
IPC: C08G18/40
Filed: 1964-12-17
Abstract: A polyurethane foam is prepared by reacting at elevated temperature a mixture of (1) a blend of (a) a polyol reactant comprising one or more polyols each of which is an ester or ether having at least two hydroxyl groups per molecule or hexylene glycol, the hydroxyl number of the polyol reactant being from 40 to 650, and (b) a hydroxyalkylated petroleum hydrocarbon-insoluble pine wood resin in which the hydroxyalkyl group is hydroxyethyl or hydroxypropyl, and the hydroxyl number of which is from 200 to 271; (2) an organic polyisocyanate in amount such that about 0.7 to 1.1 isocyanate groups are available per reactive hydrogen in the mixture; and (3) a blowing agent.  The hydroxyalkylated pine wood resin may be a reaction product of ethylene or propylene oxide with a pine wood resin, the amount of ethylene oxide reacted being at least chemically equivalent to the carboxylic acid groups of the resin.  Polyols used are (1) polyols of the polyether class such as addition products of propylene oxide with sorbitol, mannitol, glycerol, glucose, sucrose, pentaerythritol, trimethylolpropane, trimethylolbutane, methyl-a  - D - glucoside, 1,2,6 - hexanetriol and 1,2,4-butanetriol; (2) polyols of the polyester class, e.g. mixed polyesters of ethylene glycol and glycerol, in which the glycol is in excess so as to have alcohol terminal groups; (3) diethylene glycol, hexylene glycol and dipropylene glycol; and (4) polyols of the polyether class which are alkylene oxide reaction products of ammonia or amines such as ethylene diamine, toluene diamine and triethylene diamine particularly where the alkylene oxide is propylene oxide. Many polyisocyanates are mentioned.  The blowing agent may be carbon dioxide produced in situ, a compound producing nitrogen at the curing temperature or an inert organic solvent which is volatile at the curing temperature, particularly halogenated saturated aliphatic hydrocarbons.
Patent GB-1394222-A (GB)
Title: Systems for monitoring the spacing between moving vehicles
IPC: H04B10/00
Filed: 1972-11-08
Abstract: 1394222 Controlling motor vehicles DAIMLER-BENZ AG 8 Nov 1972 [11 Nov 1971] 51544/72 Heading B7H [Also in Divisions G4 and H4] The spacing between a vehicle 2 and a following vehicle 6 is monitored by at least one transmitter 3 which transmits a rearwardly directional beam of light or other radiant energy received by a receiver 7 of the vehicle 6 when it is within a certain distance to produce a warning signal or braking process of the following vehicle. The two transmitters 3, Fig. 2, each emit a beam 4 which for a given speed is at a predetermined angle to the roadway 1, Fig. 1, and a predetermined angle to the vertical plane through the vehicle, the beams overlapping to form a zone 8 of increased intensity. Should the vehicle 2 increase its speed the former angle is increased, such that the point 9 where the receiver strikes the zone 8 is advanced to a point 10. In a modification Figs. 3 and 4 (not shown) the receiver 7 responds to a change in intensity of the directional beam dependent upon the relative speed of the following vehicle to the first vehicle. In another modification, the transmitter(s) emit a directional beam of a frequency or pulse rate dependent upon the vehicle speed; the receiver compares the frequency of a received directional beam with a signal proportional to the speed of the carrying vehicle so that upon establishing a definite comparison a warning signal is given.
Patent GB-517720-A (GB)
Abstract: 517,720. Gas burners; grilling stoves. MAIN, Ltd., R. & A., and WORTLEY, G. W. July 27, 1938, No. 15945. [Classes 75 (i) and 126] A projecting deflecting wall 17 is formed at the junction between a perforated burner tube 12 and a short, offset, parallel or nearly parallel venturi-shaped mixing-chamber 13 to provide rapid mixing of the gas and air. The mixing- chamber may have a larger maximum crosssectional area on the outlet side of the throat than on the inlet side. The width of the burner tube may gradually diminish towards the outer end so as to equalise the flow of mixture through the burner outlets, or a longitudinally-extending channel may be formed in the deflecting wall 17 and in the adjacent burner tube wall. The burner may be provided with cross-pieces supporting a grilling fret.
Patent GB-1158611-A (GB)
Title: Improvements in or relating to apparatus for Levelling or Restoring a Mineral Mining Machine to a Predetermined Angular Setting
Inventor: SMALL FREDERICK
IPC: E21C35/12
Filed: 1965-10-06
Abstract: 1,158,611. Mining conveyers; hydraulic jacks. GULLICK Ltd. 16 Sept., 1966 [6 Oct., 1965; 8 Dec., 1965], Nos. 42374/65 and 51991/65. Headings B8A and B8J. [Also in Divisions E1, F2 and G3] A coal face conveyer c is supported on legs 13 each having a foot 14 and a piston portion 12. When the conveyer is moved bodily over uneven ground, a pendulum 25 associated with each leg swings about its pivot 23 and rocks a bell-crank 21 to displace a valve 18 which extends or retracts the leg to maintain the conveyer horizontal. The pendulum is adjustably secured to the bell-crank at 26 to enable the conveyer to be maintained at any desired angle. In an alternative embodiment, the pendulum actuates the wiper of a potentiometer 27 (Fig. 6) in a network including a reference potentiometer 28 and an initial balance potentiometer 29. The output current is amplified by a transistorized differential amplifier 31 and fed to a differential relay 32 which energizes one of a pair of solenoid valves controlling the leg. In Figs. 9 and 10, a coal cutting machine 35 has a cutter drum 36 and is movable along the conveyer c. The machine has a datum leg 37 and three adjustable legs 38-40 controlled by a single pendulumactuated valve 49 having flow ports 41-46 connected in pairs to the legs, and supply and exhaust chambers 50, 51.
Patent GB-1137886-A (GB)
Title: Dioxodinaphthofuran compounds
IPC: G03G5/022
Filed: 1965-12-09
Abstract: 1,137,886. Acrylic coating composition. RANK XEROX Ltd. 9 Dec., 1965 [28 Dec., 1964 (4)], No. 52195/65. Heading C3P. [Also in Divisions B2 and C4] Compounds of the formula where Y is an optionally substituted heterocyclic radical having a 5- or 6-membered ring or is a phenyl radical substituted in the para position to the amide group by CN, SO 2 NH 2 , CO 2 CH 3 , CO 2 C 2 H 5  or SO 2 NHC 6 H 5  are used as pigments in coating compositions. Example 147 describes the preparation of such a composition by ball-milling 40 parts of an n-butylmethacrylate - methacrylic acid interpolymer in about 80 parts of toluene with about 20 parts of 8,13 - dioxodinaphtho - (1,2-2<SP>1</SP>,3<SP>1</SP>) - furan- 6-carbox-p-cyanoanilide.
Patent GB-1176676-A (GB)
Title: A Tracer Assembly for a Copying Machine Tool.
Inventor: SCHAFER HANS
IPC: B23Q35/36
Filed: 1967-11-16
Abstract: 1,176,676. Copy milling. NASSOVIA WERKZEUGMASCHINENFABRIK G.m.b.H. 16 Nov., 1967, No. 52257/67. Heading B3K. [Also in Division G3] A tracer assembly for a copying machine tool, of the kind in which the tracer leads the tool to anticipate changes in direction, includes a control head having a rotary member and co-operating stationary member in which the rotary member is urged off centre with respect to the stationary member by a bias force to a distance corresponding to the lead distance, the axis of rotation of the rotary member lying oblique to the tracing plane for all tracing directions. The tracer for a copy-milling machine comprises a tracer pin 16 held by a holder 10 which is axially slidably mounted in a tracer bar 7 but which may be locked thereto by a bolt 27. On the upper end of the bar 7 is mounted a stationary member 28 which may be frustoconical, cylindrical or ball-shaped. Deflection of the tracer in the three co-ordinate directions X, Y, Z is detected by levers 4, 5, 6 and transmitted thereby to hydraulic control valves 1, 2, 3 which respectively control the tool and tracer feed movements in these directions. Deflection of the tracer in any one of these directions can be prevented by means of locking bolts 17, 18 or 19, thereby determining the tracing plane. Thus, e.g. insertion of bolt 17 in hole 17<SP>1</SP> prevents deflection in the X axis direction and tracing is carried out in the Y, Z plane. End switches 55, 56 operable by the tool or work slides at the end of a tracing line control the insertion and withdrawal of the locking bolts 17, 18 or 19 as necessary to alter the tracing plane, resulting automatically in a delivery movement of the tracer the extent of which is controlled by a path metering switch; operation of the latter switch again alters the positions of the locking bolts and reverses the tracer connections to start the tracer moving back on a line parallel to the original tracing direction. The control head includes a rotary member 29 mounted for rotation on an oblique axis 28<SP>1</SP> and having spring-loaded rollers 34<SP>1</SP>, 36<SP>1</SP> adapted to bear on the stationary member with two supporting rollers 41, 42, Fig. 3, disposed on either side of rollers 36<SP>1</SP>. A lever 36 which carries roller 36<SP>1</SP> operates a switch S through a rod 38 in dependence upon the extent and direction of eccentricity of the rotary and stationary members to cause rotation of a drive motor 30 in the appropriate direction to maintain the desired angular relationship between the biasing force and the tangent at the point of contact with the pattern. Other types of signal transmitter can be used in place of the hydraulic valves 1, 2, 3 and the control head employed may be hydraulic instead of electrical.
Patent GB-1272457-A (GB)
Title: Improvements in or relating to dental treatment assemblies
IPC: A61G15/14
Filed: 1969-10-24
Abstract: 1,272,457. Dental stands. SIEMENS A.G. 24 Oct., 1969 [26 Oct., 1968], No. 52332/69. Heading A5R. A dental treatment assembly comprises a vertically adjustable chair 1 mounting a dental unit housing 10 movable lengthwise of the chair and which has a support arm 12, which is pivoted about a vertical axis 15 thereon, dental hand appliances 17, 18 and 22 carried by the free end of the support arm and connected to extensible supply conduits in the arm, and locking means 38 on the housing for locking it to the chair. The dental unit is supported on a carriage 35 running on a guide rail 34, the carriage being provided with an electromagnetic brake which is actuated by a handle 25 at the free end of arm 12, which handle is pivotable about a horizontal axis (48) Fig. 3, (not shown) to actuate switches 47 controlling the brake when displaced either side of its normal position. A counterbalanced parallelogram arm 39 supporting a tray 24 is provided as described in Specification 1,272,455 and the housing 10 also supports a spittoon unit as described in Specification 1,272,456.
Patent GB-1302937-A (GB)
IPC: F16D65/12
Filed: 1970-11-06
Abstract: 1302937 Brake discs DR ING hcF PORSCHE KG 6 Nov 1970 [9 Dec 1969] 52892/70 Heading F2E A brake disc has a base member 1 of a high heat resistant material such as an aluminium alloy, on which are mounted by means of rivets 6 friction discs 5, 5<SP>1</SP> of a high heat resistant material such as a copper-chromium alloy. A disc flange 3 has surfaces 9, 9<SP>1</SP> which together with the inner surfaces 7, 7<SP>1</SP> of discs 5, 51 form ventilation passages 8, 8<SP>1</SP> the sides of which are provided by adjacent webs 4, 4<SP>1</SP>.
Patent GB-1278290-A (GB)
Title: Improvements in or relating to pilot burners
IPC: F23Q9/00
Filed: 1969-10-29
Abstract: 1278290 Pilot burners HONEYWELL Inc 29 Oct 1969 [16 Dec 1968] 53035/69 Heading F4F A pilot burner 13 has an outlet orifice 14a, a flame-deflecting target 15, and a pair of channel shaped wings 16, 17 which divide the flame into a main flame and two auxiliary flames. Gas enters the burner through an orifice 12b. A flame sensing electrode 18 is carried above the burner 13. (For Figures see next column)
Patent GB-1169930-A (GB)
Title: Improvements in or relating to Lactam Salts
Inventor: CHIDDIX MAX EUGENE
IPC: C07D201/14
Filed: 1966-11-29
Abstract: 1,169,930. Lactam salts. G.A.F. CORP. 29 Nov., 1966 [30 Nov., 1965], No. 53323/66. Heading C2C. A metal salt of a lactam is prepared by heating at reflux 1 equivalent weight of an alkoxide of a metal of Group 1 or 2 of the Periodic Table wherein the alkyl group of the alkoxide contains from 1 to 5 carbon atoms with 1 molecular weight of a lactam having the formula wherein R is H, or an alkyl group of 1 to 4 carbon atoms and A is an alkylene group of 2 to 10 carbon atoms which may be interrupted by -O- or -NH-, in the presence of a liquid aliphatic or aromatic hydrocarbon or ether of at least 6 carbon atoms, removing the alcohol released from the alkoxide and recovering the alkali metal salt of the lactam.
Patent GB-1175524-A (GB)
Title: Apparatus for use in the Manufacture of Hollow Plastics Articles
Inventor: HURST NORMAN ASHCROFT
IPC: B29C53/04
Filed: 1965-12-15
Abstract: 1,175,524. Making hollow articles. DUNLOP CO. Ltd. 5 Dec., 1966 [15 Dec., 1965], No. 53343/65. Heading B5A. Hollow articles, such as table-tennis balls, are made by forming hemispheres in a sheet, dividing the sheet into two, superimposing the two halves of the sheet so that the hemispheres are in alignment and finally welding and cutting the material around the peripheries of the hemispheres to form separate balls. In the apparatus shown in the Figure, the sheet having hemispheres formed therein is moved by edge engaging grippers (not shown) over a lower assembly comprising a spring-biased rear plate 422 and an apertured vertically reciprocable forward plate 425. An upper assembly 401 is then lowered on to the sheet causing spring biased pads 407 to engage the corner hemispheres in the rear half of the sheet and the blade 409 to sever the sheet into two. The assembly 401 is then withdrawn and the plate 425 lowered whilst the grippers are rotated through 180 degrees to turn the forward half of the sheet upside down. Plate 425 is then re-raised to almost contact the forward half of the sheet, after which the rear half of the sheet is pushed forward to a position overlying the forward half of the sheet by a pusher 418 carried by a slide 405 movable on the assembly 401. Just before the pusher contacts the rear half of the sheet, arms (not shown) carried by the slide 405 engage and open the grippers to allow the forward half of the sheet to fall on to the plate 425. The thus superimposed sheets are then gripped by another set of grippers and removed to a welding and cutting device.
Patent GB-1237560-A (GB)
Title: Improvements in power loaders for material handling
IPC: E02F3/42
Filed: 1968-11-13
Abstract: 1,237,560. Shovelling machines. RUSTONBUCYRUS Ltd. 13 Nov., 1968 [15 Nov., 1967; 23 Oct., 1968], No. 53813/68. Heading E1F. Mechanism for controlling the swing of a material-handling implement, e.g. a scoop 1, pivoted at one end of an arm 3 that can impart both horizontal and vertical movements to the implement involves actuators 25, 26 acting on a lever 21 pivoted at 22 on the arm 3. The lever 21 forms both a first and third class lever with a link 33 connected to a third class lever 34 pivoted to the arm at 35 and acting through link 37 on scoop 1. (For Figure see next page)