baber/WOPTO huggingface dataset:
Patent GB-179227-A (GB)
Title: Improvements in devices for securing pulleys on shafting or the like
IPC: F16D1/08
Filed: 1920-12-30
Abstract: 179,227. Burchnall, G. E. Dec. 30, 1920. Securing pulleys on shafts. -The boss 6 of a pulley is provided on each side with a recess 7 eccentric to the central aperture 6a, and correspondingly eccentric bosses 2<a> on collars 2 engage therein. In order to cause the pulley to grip the shaft, the parts 6, 2 may be relativelrotated and set-screws 6<b> tightened, or the set-screws may be first tightened and the pulley then rotated in either direction. Reference has been directed by the Comptroller to Specifications 7831/04 and 29991/12.
Patent GB-1281406-A (GB)
Title: Process for methane oxychlorination
IPC: C07C17/00
Filed: 1969-07-21
Abstract: 1281406 Methane oxychlorination process STAUFFER CHEMICAL CO 21 July 1969 [2 Aug 1968 5 March 1969] 36532/69 Heading C2C A methane oxychlorination process comprises (a) reacting a gaseous material comprising methane, an oxygen-containing gas and, as chlorinating agent, hydrogen chloride and/or chlorine in a reaction zone in the presence of a fluidized oxychlorination catalyst to produce a gaseous superheated effluent containing chlorinated methanes, unreacted chlorinating agent, non-condensable gaseous material including methane, and entrained solid material; (b) passing the effluent to a quenching zone where it is desuperheated and separating the entrained solid material therefrom; (c) passing the desuperheated effluent to a condensation zone to separate a condensate comprising a high-boiling fraction of the chlorinated methanes and hydrochloric acid from the remaining gaseous material, which contains the non-condensable material including methane and a lowboiling fraction of the chlorinated methanes, and separating said condensate from the remaining non-condensable gaseous material; and (d) separating a stream comprising the lowboiling fraction of chlorinated methanes from the remaining non-condensable gaseous material including methane, and recycling at least a portion of the chlorinated methanes to step (a).
Patent GB-1355735-A (GB)
Title: Arrangement for dry lubrication of rotating chip-removing tools
IPC: B24B57/04
Filed: 1972-08-07
Abstract: 1355735 Abrading; lubricating tools ERNST WINTER & SOHN 7 Aug 1972 [9 Aug 1971] 36705/72 Headings B3D and B3K [Also in Division B5] An arrangement for dry lubrication of rotating chip-removing tools, such as grinding wheels, circular saws, and milling tools, comprises a dry lubricating body 6, Fig. 1, which is provided with a drive which rotates the body at a slower speed than the tool and displaces the body towards the working surface of the tool. The body may contain graphite, molybdenum sulphide or hexagonal boron nitride and be formed in an annular shape and carried by a shaft 7 rotated at, say, 12 revolutions per hour as it is fed in the direction of arrow 8 into the annular surface 4 of a grinding wheel 1 rotated at 4,000 revolutions per minute. A feeler 10 lies in a plane behind the surface 4 of the grinding wheel so that the lubricating agent is removed in a spiral path from the body 6. The axis of the body 6 may be parallel or slightly inclined to the axis of the grinding wheel and the body may be of annular or disc form. The body may be fed radially into the grinding wheel particularly if the grinding wheel is profiled. The body 6, Fig. 6, may be mounted on a carrier 14 on a shaft 7 slidable in a tube 15 provided with slots 17, 18 engaged by a pin 19 extending through the shaft. A spring 16 bears on a shoulder 20 on the tube and the pin 19 to urge the body in the direction of the arrow 31 against the grinding wheel 1. The sleeve 15 is connected to an extension 22 having bores 24 engaged by a spring-pressed ball 28 in a member 25 on the driving shaft 21 of the motor M, the ball providing a slip coupling. The feeler 10 is adjustable by a screw 30. In another embodiment, the body 6, Fig. 7, is in the form of a disc carried by a shaft 7 having a threaded spindle 32 which engages the threads of spring pressed block 33 and is rotatable through a slip coupling by the motor M. The block 33 can be retracted against a spring 36 to permit the spindle 32 and shaft 7 to be manually adjusted.
Patent GB-395260-A (GB)
Title: Improvements in or relating to heat insulation
IPC: F16L59/04
Filed: 1932-12-29
Abstract: 395,260. Nonconducting coverings for heat. GOLDBERG, M., 18, Altenberger Strasse, Dresden, Germany. Dec. 29, 1932, No. 36795. Convention date, Dec. 31, 1931. [Class 64 (ii).] Heat insulation comprises a filler of mineral wool, such as slag wool or spun glass, enclosed within a casing of wire netting 1, a sheet of metal foil 2 being interposed between the filler and the netting. The foil bulges between the wire of the netting, forming air cells 3 which increase the insulating effect. The Figure shows the insulation applied to a pipe, the casing being used in semi-cylindrical sleeves. Exposed surfaces 4, 5 of the casing may be covered with asbestos yarn.
Patent GB-626985-A (GB)
Title: Improvements in or relating to the starting or striking of fluorescent tubes
IPC: H05B41/232
Filed: 1946-12-13
Abstract: 626,985. Supply systems for space-discharge lamps. CONCORDIA ELECTRIC SAFETY LAMP CO., Ltd., and STEADMAN, C. H. Dec. 13, 1946, No. 36850. [Class 38 (iv)] A circuit arrangement which enables a fluorescent lamp to be rapidly started with partially heated electrodes and provides sufficient voltage to effect cold starting in the event of broken heater filaments comprises a non-leaky auto-transformer 8 having its primary winding 15-25 connected in series with a choke 9 across the supply mains 12, 13 and the fluorescent lamp 1 having a further choke 7 in series therewith connected across the primary and secondary windings of the transformer and its choke 9 whilst the electrode heaters 6, 5 are supplied respectively from an auxiliary winding 10 and a tapping 14 on the transformer secondary winding and a capacitor 11 is connected across the lamp and its choke 7 to provide partial resonance at starting. The two choke coils may be wound on a common core and comprise a tapped winding so wound that the respective fluxes act in the same direction.
Patent GB-412287-A (GB)
Title: Improvements in or relating to fluid pressure apparatus
IPC: B60T11/16
Filed: 1932-12-30
Abstract: 412,287. Pneumatic single - stroke apparatus. TRIER, V. A., Andre Works, Victoria Gardens, Ladbroke Road, London. Dec. 30, 1932, No. 36852. [Class 8 (ii).] Fluid - pressure receiving or transmitting apparatus for controlling vehicle brakes, vibration-dampers (e.g. such as described in Specification 389,127, [Group XXXII]), direction indicators, dipping head-lights &c. whether employed on vehicles or not, comprises a fluid container A having convex end walls A<2> of rubber &c. connected by a substantially inexpansible side wall A<1>, a casing or cylinder D in which the container can slide longitudinally, and convex pressure members D <1>, D at opposite ends of the casing adapted to bear on and deform the convex end walls of the container so as to apply pressure to or to be acted upon by variations of the pressure of the fluid therein. The container A may be vulcanized to prevent expansion or may be surrounded by a cylindrical metal &c. sheath B, the ends of which are turned inwards at B <1>. A rubber tube A' extending from one of the end walls A<2> encloses a pipe A<5> through which fluid is ejected when the container is compressed on operating a convex member D<4> screwed into the opposite end of the cylinder D. The container may be formed in two overlapping parts vulcanized or cemented together or the two parts may be inserted in opposite ends of the sheath B and form a fluid-tight joint with the sheath. Modification comprise (1) partly filling the container with solid matter; (2) providing a spring within the container to force out the end wall or walls ; and (3) interconnecting a number of pressure devices each comprising a container with two convex end walls arranged between convex pressure members, adjacent pressure members of different devices being rigidly connected. The fluid used may be water with alcohol or glycerine to prevent freezing. In the case of fluid-pressure-operated brakes, by providing a hand-operated, adjustable, pressure - member in addition to the pressure member operated by the brake pedal &c., the length of the liquid column between the pedal-operated member and the pressure members acting on the brake-shoes &c. may be adjusted.
Patent GB-1155571-A (GB)
Title: Control Method and Apparatus for Optimum Operation of an Installation
IPC: G05B13/02
Filed: 1966-08-17
Abstract: 1,155,571. Automatic control and optimizing systems. BATTELLE DEVELOPMENT CORP. Aug.17, 1966 [Aug. 17, 1965], No.36927/66. Heading G3R. An arrangement for providing optimum operation of an automatic control system comprises continuously producing a pilot signal whose value is a linear function of at least one of three quantities, a controlled variable, its first time derivative, or its second time derivative, comparing the signal with a plurality of reference signals and triggering off a searching cycle at a predetermined time intervals and when the amplitude of the signal reaches either a first positive or a second negative value, the searching cycle consisting of two successive phases, the first in which a parameter control led is made to vary progresssively in accordance with a predetermined law and the second phase being triggered off and the signal passes while decreasing in amplitude through a third value, the regulating variable being acted on in dependence of a first periodic signal and a signal which is proportional to the time integral of the product of the signal and a second periodic signal of the same frequency as the first, and stopped when the aperiodic component of the signal reaches a fourth boundary value. In a temperature control system a heat generator G is fed with liquid fuel 1 and air 2 to heat a fluid the temperature 6 of which is measured at 5 and passed with a reference signal # c  to an amplifier 6 the output of which is passed through a proportional plus integral plus derivative means which controls a fuel valve 3. The amplified error signal is also passed to an apparatus CD in which it is compared with reference signals #1-#5 successively to initiate the searching phase causing the air to be varied by a signal Sr controlling a valve 4 in a manner described above. In this embodiment the variations of air-flow are made entirely in the excess air region to avoid the risk of explosion due to excess of fuel. In a chemical reaction, the parameter to be optimized could be the efficiency of a reaction or the quality of a product where an operating criterion depends on a plurality of regulatable quantities, the first phase for each being carried out successively and the second phase being carried out simultaneously. Common measuring detecting and logic circuits may be provided for all the quantities. The relays described for example in connection with Figs. 4 and 6 (not shown) may be replaced by semi-conductor elements, and the electric circuits by equivalent fluid modules e.g. operated by compressed air or liquid. Integration in the arrangement may be performed by impulse counts. The arrangement may be additionally controlled by a programming means.
Patent GB-900987-A (GB)
Title: Improvements relating to heat exchangers
Inventor: LOWY DANIEL
IPC: F28D9/00
Filed: 1959-10-31
Abstract: 900,987. Making heat exchangers; brazing; angular bending. G.K.N. GROUP SERVICES Ltd. Oct. 24, 1960 [Oct. 31, 1959], No. 37025/59. Classes 83 (2) and 83 (4). [Also in Group XIII] A heat exchanger is formed by stacking together units of the type shown in Fig. 1 which are of mild or stainless steel sheet bent to provide top and bottom surfaces 10 and 11 respectively with an integral connecting portion 12 along one side. As shown in Fig. 8, the sheets are bent by folding tools 39 and 40 while the portion 12 is engaged between a member 41 and a backing bar 42, the latter being connected to a pressure transmitting member 43 by legs 44 which project between heat transfer projections 22 during the final stages of folding. Along the sides of the unit inwardly turned co-operating flanges 19, 20 and outwardly turned flanges 16, 17 are provided while further outwardly turned flanges 14 and 15 are formed along the open side 13. The units are stacked together as shown in Fig. 2 so that the flanges 14, 15, 16 and 17 of adjacent units co-operate and openings 18 and 31 to the interior of the units and to the space between the units respectively are defined. Fluid-tight junctions are made when necessary by applying copper foil or powder to them contacting faces to be joined and heating the assembled heat exchanger in a furnace in a reducing atmosphere.
Patent GB-1448757-A (GB)
Title: Pipe spinning tool
IPC: E21B19/16
Filed: 1974-08-23
Abstract: 1448757 Pipe rotating tool SERVICE EQUIPMENT DESIGN CO Inc 23 Aug 1974 [24 Aug 1973] 37042/74 Heading B3N A tool for spinning drill pipes is similar to that described in Specification 1,401,558 except that rollers 116 are mounted at the ends of sprockets 117 supporting the flexible drive element, chain 33, and mounted at the ends of pivotable jaws 16a, 17a. The rollers are of greater diameter than the sprockets so that when the jaws are closed on the pipe 34, Figs. 5 and 6, the sprockets and adjacent chain portions do not engage the pipe and are not compressed. The rollers may run freely or may be locked to rotate with the sprockets which are rotated by the chain. The tool is suspended by bar 110 on suspension 112. Handles 113 are provided.
Patent GB-1432518-A (GB)
Title: Process for preparing cis-chrysanthemic acid
IPC: C07C61/04
Filed: 1974-08-23
Abstract: 1432518 Chrysanthemic acid SUMITOMO CHEMICAL CO Ltd 23 Aug 1974 [27 Aug 1973 22 Nov 1973 30 Nov 1973] 37130/74 Heading C2C Cis-chrysanthemic acid is obtained by treating a mixture of cis-chrysanthemic acid and isocis-chrysanthemic acid with water in the presence of an acid catalyst to convert the isocis-chrysanthemic acid selectively to cis-dihydrochrysanthemolactone, adding an aqueous alkaline hydroxide to the mixture to form a phase containing neutral lactone and a phase containing the acid and separating the phase containing the lactone from the phase containing the acid. The starting mixture may be obtained by reacting a C 1 -C 4  alkyl or benzyl ester of trans-#-hydroxy dihydrochrysanthemic acid with more than an equimolar amount of an alkali metal or an alkali metal alkoxide, hydride or amide at 100-200‹ C. The esters may be obtained by hydrolysing a trans-#-halogenodihydrochrysanthemic acid or an ester thereof and subsequently esterifying if required.
Patent GB-956877-A (GB)
Title: Improvements in and relating to snap-action electrical switches
IPC: H01H13/60
Filed: 1961-10-17
Abstract: 956,877. Snap-action switches. UNITEDCARK FASTENER CORPORATION. Oct. 17, 1961 [Oct. 19, 1960], No. 37200/61. Heading H2B. In a successive actuation switch comprising an insulating housing 12, on depression of a push-button 14, an edge of the arcuate-shaped head 62 of an actuator arm 60 engages a shoulder 36 on the housing and continued downward movement of the button rocks arm 60 about a pin 41 and displaces the arm axially downwardly, the end 64 of the arm pushing down the head 74 of a spring-pressed plunger 70 to force the plunger into an insulating sleeve 76 carrying movable contact 20, and the arm, plunger and sleeve then snapping over as a unit so that the rollers 78 comprising the movable contact 20 engage extensions of fixed contacts 18 located in the housing wall. Housing 12 is in two mating body portions 24 held together by a casing 27, the upper part 22 of which has spring fingers 82 for mounting the switch in a support.
Patent GB-1328939-A (GB)
Title: Method and apparatus for checking the compression of internal  combustion engines
IPC: G01L23/08
Filed: 1972-08-10
Abstract: 1328939 Measuring compression in IC engines ROBERT BOSCH GmbH 10 Aug 1972 [11 Aug 1971] 37272/ 72 Heading G1N The compression in the combustion chambers of an IC engine is determined by measuring the torque required from the engine starter motor to turn the engine over, the torque being proportional to motor current and indicated by the voltage drop across the battery terminals. As shown Fig. 2, the voltage pulses at terminal 11 of battery 10, representing the current pulses in starter motor 27, are fed through a low pass filter 12 to zero-voltage switch 15 which produces trigger pulses for a counter 17, enabling a unit 16 to store the peak values of the measured pulses. These values are fed to a recorder 18 and a comparator 19 which energizes a lamp 24 or 25 depending on the variation in peak values. The system is initially delayed for a short time by elements 4, 21, 20. In another embodiment, the starter current peak value s are compared with pre-set maximum and minimum values, which may be automatically modified in accordance with e.g. temperature.
Patent GB-1320006-A (GB)
Title: Conveyors
IPC: B65G17/38
Filed: 1970-08-03
Abstract: 1320006 Endless conveyer belts with spaced load-bearing rods H E E KLINKICHT 3 Aug 1970 [2 Aug 1969] 37356/70 Addition to 914382 Heading B8A The conveyer of the parent Specification is modified by the provision of flights 4 for entraining material. The flights are positioned by having lug portions which engage recesses 7, 8, in the inner and outer peripheries of the side members 1 of the conveyer. In a modification (Fig. 1, not shown) the flights project radially outwardly of the conveyer (instead of inwardly, as shown) and have no lugs engaging recesses 8.
Patent GB-873172-A (GB)
Title: Improvements in or relating to waste outlet fittings for sinks, wash-basins, baths and the like
Inventor: KING VICTOR HOWARD GEORGE
IPC: E03C1/14
Filed: 1956-12-06
Abstract: 873,172. Waste fittings; traps. BARKING BRASSWARE CO. Ltd. Nov. 26, 1957 [Dec. 6, 1956], No. 37385/56. Classes 26 and 33. [Also in Group XXVIII] A trapped waste fitting for attachment to the outlet aperture of a sink, washbasin and the like comprises a fitting 1 located therien, a U- shaped tube 12 with one arm secured to an outlet tube 18, the other being secured to an extension 10 having at its other end a flange 7 with an annular recess 8 with leak-preventing means, e.g. a toroidal sealing ring 9, therein, and means for securing the extension 10 to the fitting 1. As securing means the fitting 1 may have an apertured base 2 through which passes a screw 3 received by a threaded socket 4 in a bridge 5 in the member 6 secured thereto to form one end of the extension 10 which may be received telescopically in forming a joint by the arm 11 of the tube 12, which is suitablyjointed to the tube 18, around which may be placed a tongued rosette 22 where it passes through a wall.
Patent GB-1505947-A (GB)
Title: Tubular heat exchanger
IPC: F28B1/00
Filed: 1976-09-10
Abstract: 1505947 Heat exchanger casings; surface condensers HOECHST AG 10 Sept 1976 [17 Sept 1975] 37618/76 Heading F4S In a heat exchanger in which a bundle of heat exchange tubes (not shown) extend through a shell 1 and are connected at their ends to headers secured at the ends of the shell, the shell comprises two axially spaced portions defining therebetween a gap bridged by a cagelike structure consisting of rods 8 joined at their ends (e.g. by welding; see Figs. 3 and 4) to the shell portions, and extending through rings 9 welded to the rods 8, the said gap and the cage-like structure 8, 9 being encircled by a further shell member 10 eccentrically positioned with respect to the median longitudinal axis of the tube bundle, the member 10 being connected by radial walls 5 to the other shell members and having therein an inlet 6 and an outlet 7 for the shell-side fluid. In use, as a vapour condenser, coolant passes to and from the tubes via inlet 2 and outlet 3 in header 11. Vapour enters the shell via inlet 6 and condensate discharges at 7. Non- condensible gases discharge at 4.
Patent GB-888962-A (GB)
Title: Floor cleaning machine
IPC: A47L11/292
Filed: 1958-11-21
Abstract: 888,962. Floor cleaning machines. GRASMANN, J.. and GRASMANN, Jun. J. Nov. 21, 1958 [Nov. 23, 1957], No. 37629/58. Class 138 (1). A floor cleaning machine has one or more motor driven, roller brushes 11 which throw dirty water against one or more smooth drums 15, the latter being mounted parallel to the brushes, rotated at a lower speed, and provided with a stripping bar 21a to deliver dirty water to container 21. The drum 15 and brushes 11 are driven by an electric motor 4 through shaft 7 and bevel gearing, the speed ratio between the brushes 11 and the drum 15 lying in the range ten to one to twenty-five to one. A movable guard 24 is provided with a rubber strip edge 27.
Patent GB-1031976-A (GB)
Title: Contacting semiconductor bodies
IPC: H01L23/485
Filed: 1964-09-15
Abstract: 1,031,976. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 15, 1964 [Oct. 15, 1963], No. 37673/64. Heading H1K. Small area ohmic or rectifying alloyed contacts are made to semi-conductor bodies provided with an insulating surface layer. The semi-conductor may be silicon, germanium, silicon carbide, or an A<SP>III</SP>B<SP>V</SP> compound and on, for example, germanium and silicon the insulating layer may be a thermally or anodically grown oxide film. The metallic alloying material, which consists of or contains dopants, may be deposited over large areas of the insulating layer and alloyed through it only in localized regions or may be first deposited in the selected area(s) and alloyed through the layer after which further metallic material is deposited to contact the alloyed material and to extend over the insulating layer to form a large electrode surface. In an embodiment, aluminium is deposited over a grown oxide film on a previously etched N-type silicon body and at one point is alloyed through the oxide using an electron beam. The beam may melt only the aluminium to give a normal alloyed junction or may melt both aluminium and silicon to give a junction of the melt-back or remelt type. The sides of the hole formed through the oxide will be coated with aluminium providing connection between the junction and remaining unalloyed metal, but to ensure electrical continuity it is preferred to deposit further aluminium over the entire aluminium layer after the alloying. To attach a lead, such as a nickel wire, to the aluminium layer an intermediate layer may be applied to a small part of the aluminium layer and the lead attached to this. A lead may be soldered or stuck with conductive thermoplastic cement to such an intermediate layer or to the aluminium layer.
Patent GB-1065739-A (GB)
Title: Washers which lock and scrape
IPC: F16B39/24
Filed: 1964-09-16
Abstract: 1,065,739. Locking nuts and bolts. ILLINOIS TOOL WORKS Inc. Sept. 16, 1964 [Sept. 24, 1963], No. 37872/64. Heading F2H. [Also in Division H2] A lock washer 10 has sharp radial edges 15 each formed at the side of one of the tongues 14 which form the base of the nut and from which flanges 12 extend perpendicularly. The washer is used under a bolt head or nut, of corresponding shape in plan so that it engages in the cup formed by the washer, and when the bolt or nut is tightened the edges 15 scrape the surface of a workpiece and make a good electrical contact. One of the washers 10 may be nsed under the bolt head and one under the nut of a joint or, if one is used with the head, the nut may have its own teeth, Fig. 3B (not shown). Conversely, the bolt head may have its own teeth, Fig. 3A (not shown), if the nut is received in the washer.