baber/WOPTO huggingface dataset:
Patent GB-904350-A (GB)
Title: Method of making silk screen stencils
Inventor: MAUNDER CLAUDE ALFRED
IPC: B41C1/14
Filed: 1960-06-24
Abstract: 904,350. Stencils. MASSON SEELEY & CO. Ltd. Feb. 9, 1961 [June 24, 1960], No. 22232/60. Drawings to Specification. Class 100 (2). A method of making a silk screen stencil comprises marking a screen from a suitable blocking foil directly or indirectly by means of a die of the desired mark, thereby to render the marked areas of the screen impermeable. The blocking foil comprises a carrier sheet, a thermoplastic transferable pigmented layer, and a clear thermoplastic coating to render the screen impermeable. The foil may be printed by a die directly on to the screen, or it may be printed on to a waste sheet, printing being either through the foil or through the waste sheet, whereafter the foil is pressed by a heated plate against the screen to transfer thereto the material remaining on the foil. In another form, two foils are printed on to waste sheets, one through the foil and one through the waste sheet, and then placed on opposite sides of the screen and pressed against it by a heated plate.
Patent GB-970002-A (GB)
Title: Cutting tool unit
Inventor: EVANS ROBERT HENRY
IPC: B23B29/034
Filed: 1962-06-08
Abstract: 970,002. Drilling and boring. C. & A. STEWART Ltd. Sept. 9, 1963 [June 8, 1962], No. 22273/62. Heading B3C. A cutting tool holder comprises a sleeve 5 and an internally threaded collar 6 both located coaxially in a hole 2 of a boring bar 1. The cutting tool 7 has a threaded shank portion 8 and rear portion 9 with a flat 10 thereon which engages a pin 11 passing through the sleeve, thus preventing rotation of the tool in the sleeve but allowing axial movement. The threaded portion 8 of the tool shank engages the threaded portion of the collar 6 whereby the rotation of the latter by a key 16 effects the radial projection of the cutting tool. The outer face 14 of the collar 6 is provided with markings which indicate the amount of rotation of the sleeve which may then be interpreted in terms of the tool radial projection. A locking screw 13 for the tool is provided and a set screw in the bore 4 prevents rotation of the sleeve 5 in the hole 2.
Patent GB-1493530-A (GB)
Title: Securing device for freight containers
IPC: B60P7/13
Filed: 1975-05-22
Abstract: 1493530 Retaining spring bolts MESSERSCHMITT-BOLKOW-BLOHM GmbH 22 May 1975 [5 July 1974] 22279/75 Heading E2A Freight containers are held by bolts 5, 6 when in the raised position illustrated in Fig. 1. However, these bolts are normally pivoted out of engaging position and are only released when both of locks 11 and 12 are opened. Lock 11 is automatically opened when rollover bar 9 is engaged by a passing container, lock 12 is opened by depressing pedal 13. Fig. 3 shows the form of lock illustrated. The bolt 5 has a lug 14 near its pivot 4 and this is engaged by the end 15 of arm 16. Opening the lock involves rotating arm 16 in the direction of arrow D.
Patent GB-951943-A (GB)
Title: Synchronizing clutch
IPC: F16D25/10
Filed: 1960-06-24
Abstract: 951,943. Positive clutches; clutch control. P. E. PONTIUS, and S. B. CAMPBELL. June 24, 1960, No. 22299/60. Headings F2C and F2L. A power actuated friction synchronized positive clutch for a marine vessel of the type described in Specification 738,860 wherein externally toothed driving and driven members 2, 9 the former carrying an internally splined sleeve 24 which is axially slidable into engagement with the latter on synchronism produced by a friction clutch 37 between the member 9 and a presser sleeve 33 connected through balking pins 43 to the sleeve 24, has additional hydraulic operation of the friction clutch 37. The sleeve 24 is actuated by selectively supplying pressure fluid from a pump 80 via a solenoid operated control valve 65 and lines 66 or 67 to cylinders 59, 60, the pistons 57, 58 of which are interconnected and carry a roller 55 disposed between flanges 53, 54 on the sleeve. For engagement the control valve 65 is conditioned, by energizing solenoid 97, to supply pressure fluid through a line 64 and valve 76 to engage the clutch 37 and after a delay, determined by a delay valve 69, to the cylinder 60 to move the sleeve 24 left. Frictional drag on the presser sleeve 33 causes the balking pins 43 to engage in large ends 51 of slots 49 in the member 33 and prevent further movement of the sleeve 24. On synchronizm the pins 43 are free to slide in the slots 49 thereby permitting further leftward movement of the sleeve 24 to engage the clutch. A cam 79 fast with the pistons actuates a valve 86 which supplies pressure fluid to a pilot valve 86<SP>1</SP> to change the valve 76 which cuts the supply of pressure fluid to the friction clutch line 77 and connects the line to exhaust at 70a. The cam 79 also operates a switch 102<SP>1</SP> to break the circuit to the engage solenoid 97 whereupon the valve 65 moves to its neutral position and vents the chamber 60. The sleeve 24 being held in the clutch engaged position by a detent 28. For disengagement the valve 65 is conditioned, by energizing the solenoid 98<SP>1</SP>, to supply pressure fluid direct to the cylinder 59. The solenoids 97, 98<SP>1</SP> are selectively energized by manual switches (Fig. 6, not shown) which also start a motor 72 to drive the pump 80. A relief valve 43d and check valve 73 are provided. The delay valve 69 may be by-passed through a valve 47 and orifice 78 for testing. The teeth on the members 2, 9 are crowned to permit slight misalignment of the members.
Patent GB-223020-A (GB)
Abstract: 223,020. Watson. T. F., and Watsonian Folding Side-Car Co., Ltd. Aug. 29, 1923. Seats &c., arrangement &c. of.-In motorcycle side-cars having two seats arranged in tandem, the main seat is disposed rearwardly of the auxiliary seat and is adapted to be moved to the rear to increase the leg room when the auxiliary seat is in use, and to a forward position when the auxiliary seat is folded up or removed. The main seat a with back rest e, Fig. 1, is adapted to be moved into the locker space as shown in dotted lines, the locker lid f being hinged at g and connected to the back seat e by a filler piece j. The auxiliary seat m, Fig. 4, is preferably pivoted on a longitudinal bar n and provided with pivoted foot-rests q and a backrest p. The seat is preferably movable longitudinally.
Patent GB-1000447-A (GB)
Title: An improved electro-magnetically controlled gas safety cut-off valve
Inventor: PEARSE REGINALD VICTOR
IPC: F16K31/06
Filed: 1963-06-05
Abstract: 1,000,447. Valves. PERL CONTROLS Ltd. June 5, 1964 [June 5, 1963], No. 22416/63. Heading F2V. A gas safety cut-off valve comprises a main valve closure member 15, loaded to the closed position by a spring 18, controlling the flow of gas from an inlet 12 to an outlet 14. The outlet 14 leads from a port 22 in a bore 19 which port is controlled by a piston valve 30 carried by a push member 27 at one end and having an extension 29 of reduced cross-section at the other end. An outlet port 13 leading to the pilot flame may also be provided downstream of the main valve or the pilot supply may be separate. In operation, the member 27 is pressed and the piston 30 closes the port 22. The main valve is then opened on further movement of the member 27 and the pilot flame is then ignited. A solenoid 24 is energized by the flame to hold the main valve open and on releasing the member 27, the piston 30 is retracted by a spring 28 to open the port 22 to allow flow of gas to the outlet 14.
Patent GB-362339-A (GB)
Title: Improvements in and relating to automatic die-casting apparatus
IPC: B22D17/32
Filed: 1931-08-08
Abstract: 362,339. Casting-machines. ELEKTRONMETALL GES., Cannstatt, Stuttgart, Germany. Aug. 8, 1931, No. 22499. Convention date, Sept. 15, 1930. [Class 83 (i).] A valve b, to relieve the pressure in the metalforcing chamber of an automatic die-casting machine in the event of failure of the power driving the machine or the control mechanism, is arranged in the air supply pipe f and is normally held out of action by the same power for instance by means of an electromagnet c. When the power fails the valve b falls and so cuts off the air supply f and opens the pipe g, leading to the metalforcing chamber, to exhaust. The device is applicable to hydraulically-controlled machines.
Patent GB-1263382-A (GB)
Title: Improvements in permanent magnet material powders having superior magnetic characteristics and method for their production
IPC: H01F1/06
Filed: 1969-05-02
Abstract: 1,263,382. Magnetic materials. GENERAL ELECTRIC CO. 2 May, 1969 [20 May, 1968], No. 22515/69. Heading H1H. [Also in Divisions C1 and C7]  Powdered cobalt-rare earth metal compound, made by reducing in size a bulk body of the compound is contacted with nitric, hydrochloric, sulphuric, phosphoric or acetic acid for a time sufficient to increase the coercive force of the compound. Specified compounds are Co 5 Y, Co 5 Sm and Co 5 M where M is Ce-rich misch metal. Examples describe the treatment of the above compounds, after grinding to particle sizes of < 30 microns to 147 microns, with 1%, 2% and 20% HNO 3 ; 20% HCl; 20% H 3 PO 4 ; 20% H 2 SO 4  and 20% CH 3 COOH (per cent by vol.) for 10 seconds to 90 minutes at about 25‹ C.
Patent GB-848198-A (GB)
Title: Process for hydroisomerization of hydrocarbons
IPC: C07C5/27
Filed: 1959-07-01
Abstract: In the hydroisomerisation of hydrocarbons in the presence of a catalyst comprising a platinum group metal supported on a refractory metal oxide containing combined halogen, the catalyst is pretreated by reduction for at least an hour at a temperature at least 50 DEG C. above the reaction temperature.  Straight chain or slightly branched paraffins having at least 4 carbon atoms per molecule or cycloparaffins or naphthenes containing at least 6 carbon atoms per molecule and at least 5 carbon atoms in the ring, including mixtures, may be isomerised at 250 DEG -475 DEG  C., 6,8-100 atmospheres, an LHSV of 0,5-100 in a fixed bed process and a hydrogen to hydrocarbon mol. ratio of 0,25-10.  Moving or fluidised catalysts may also be used.  The catalyst may comprise 0,01-2% of a platinum metal, particularly platinum, and 0,01-8% fluorine and chlorine deposited on alumina, titania, zirconia, chromia, zinc oxide, chromiaalumina, alumina-boria, bauxite, kaolin, bentonite, montmorillonite, magnesia-alumina spinel, or zinc oxide spinel.  The catalyst after calcination is treated with hydrogen, which may be diluted with methane or ethane, preferably at 500 DEG -700 DEG  C. for 1-18 hours. Preferably the catalyst is treated in situ first at atmospheric pressure then at operating pressure.
Patent GB-780631-A (GB)
Title: Promoted reduction of aromatic nitrogen compounds
IPC: C07C241/02
Filed: 1955-08-05
Abstract: The reduction of aromatic nitrogen compounds by the action of a metal alcoholate according to the parent Specification is carried out in the presence of an ortho-cycloalkano-benzoquinoid compound as a reduction promoter.  The ortho - cycloalkano - benzoquinoid compounds comprise benzoquinones in which two adjacent carbon atoms of the benzene nucleus are linked to the end carbon atoms of a chain of at least three carbon atoms (preferably four carbon atoms) of which at least two are saturated carbon atoms, together with functional addition compounds (for example with hydroquinones, bisulphites, heavy metal salts or sulphiding agents), functional derivatives and tautomeric forms such as imides, oximes, semi-carbazones and hydrazones, and hydroquinones corresponding to the benzoquinones, and also substitution products of these compounds wherein the benzene nucleus and/or cycloalkane ring contain substituents such as halogen, hydroxyl, nitro, mercapto, amino, cyano, sulpho, carboxyl alkyl or alkoxy. Specified reduction promoters include the 2 : 3-a  : o -propano, buteno and butano derivatives of 1 : 4-benzoquinone and corresponding oximes, chlorimides, quinhydrones, hydroquinones, hydroquinone diacetates, bisulphites and hydrogen sulphides which may be substituted by chlorine, methyl, amino or phenylamino atoms or groups.  The reaction is suitably carried out by adding the reducible aromatic nitrogen compound, for example nitrobenzene or a substituted nitrobenzene to a reducing mixture, formed by reacting a metal hydroxide such as sodium hydroxide with an alcohol, preferably methanol, in which the reduction promoter is incorporated and heating the resulting mixture.  Examples describe the reduction of nitrobenzene by sodium hydroxide and methanol in the presence of 5 : 6 : 7 : 8 - tetrahydro - 1 : 4 - naphthoquinon and its bisulphite compound, 5 : 8 - dihydro - 1 : 4 - naphthalenediol, 5 : 6 : 7 : 8 - tetrahydro - 1 : 4 - naphthalenediol, and, for comparative purposes, 1 : 4-naphthalene diol to give as the main products azobenzene and hydrazobenzene with a minor amount of aniline.  Examples given for comparison in which the reduction promoter is absent or is replaced by 2 : 3 : 5 : 6 - tetramethyl - 1 : 4 - benzoquinone or 1 : 2 : 3 : 4 : 5 : 6 : 7 : 8 - octahydro - 9 : 10 - anthraquinone result in the formation of azoxylbenzene as the chief product.  Specifications 716,418 and 730,748 are referred to.
Patent GB-1284710-A (GB)
Title: Turbomachine rotors
Inventor: WAGLE JOSEPH A
IPC: F01D11/00
Filed: 1971-04-19
Abstract: 1284710 Jointing GENERAL MOTORS CORP 19 April 1971 [1 June 1970] 22612/71 Heading B3V [Also in Division F1] Axial flow gas turbine engine compressor rotor comprises several annular elements each supporting one or more rows of blades, adjacent parts being secured by similar joints. The first stage wheel 11 carries blades 12 and the second stage wheel 14 carries blades 15. The thickness of the wheel 11 is reduced to form a rim 27 which includes an integral spigot 30. The wheel 14 has a similar portion 28 of reduced thickness and includes a socket which receives the spigot 30. Rebates 32 and 34 receive a sheet metal ring 31 having a welded joint, and defines an annular cavity 36. There are apertures 35 in the ring, through which a polymer adhesive, e.g. an epoxy resin is pumped, to fill the cavity and bond the parts together. A threaded socket 24 receives a tie bar to facilitate assembly of the parts. The ring 31 is coated externally with an abradable material 40, e.g. a metallic spray which is soft enough to be cut away if there is interference between the rotor surface and the stator blades, but will not damage the stator blades.
Patent GB-838723-A (GB)
Title: Polymerisation catalysts
Inventor: MULLEY RICHARD DEREK
IPC: C08F10/00
Filed: 1957-07-17
Abstract: Olefin polymerization catalysts comprise mixtures of an alkyl or alkylene halide, titanium powder and at least one of iodine, bromine, mercuric halides, ethers, tertiary amines, powdered beryllium, magnesium, chromium, zinc, cadmium and tin metals or their alloys. The alkyl halide has the formula RX and the alkylene halide X (CH2)nX, where X is chlorine, bromine or iodine, R is alkyl, aralkyl or cycloalkyl and n is an integer not less than 3.  The mixing is preferably carried out by ball-milling in an inert hydrocarbon medium at above room temperature.ALSO:Olefins are polymerized using as catalysts mixtures of an alkyl or alkylene halide, titanium powder and at least one of iodine, bromine, mercuric halides, ethers, tertiary amines, powdered beryllium, magnesium, aluminium zinc, cadmium and tin metals or their alloys.  The alkyl halide has the formula RX and the alkylene halide X(CH2)nW where X is chlorine, bromine or iodine, R is alkyl, aralkyl or cycloalkyl and n is an integer not less than 3.  The process may be carried out in an inert dispersing medium at 50-150 DEG  C.
Patent GB-615157-A (GB)
Title: Improvements relating to variable delivery pumps
IPC: F04B49/08
Filed: 1946-07-30
Abstract: 615,157. Fluid-pressure. servomotor-control systems. LUCAS, Ltd., J., and IFIELD, R. J. July 30, 1946, No. 22653, [Class 135] The release of liquid from the cylinder n, Fig. 1, of a servo-piston o controlling the position of the swash-plate f of a variable delivery pump, is regulated by a spring-loaded piston valve u formed with ducts 2, y, Fig. 2, and a nozzle z carrying a sealing washer 6 coacting with a fixed plate 4 provided with ports 5 and disposed in a pipe connected to the cylinder. When the pressure in the cylinder exceeds a predetermined value, the nozzle is raised from the plate 4 and the liquid flows into the valve casing 7 and thence through the duct 8 to the pump inlet k. The spring 3 loading the valve consists of a cylinder formed with slits 10. In a modification, the piston valve is replaced by a spring-loaded or resilient diaphragm.
Patent GB-1183924-A (GB)
Title: Novel Bis-(p-Chlorophenoxy)-Malonic Acid Derivatives, the Preparation Thereof and Compositions containing the same
Inventor: GRIOT RUDOLF GUSTAV
IPC: C07D295/088
Filed: 1967-05-16
Abstract: 1,183,924. Bis - (p - chlorophenoxy) - malonic acid diesters. SANDOZ Ltd. 16 May, 1967 [7 June, 1966], No. 22707/67. Heading C2C. Novel bis-(p-chlorophenoxy)-malonic acid diesters of the general formula wherein R is a radical of the general formula -(CH 2 ) 2 R<SP>1</SP>, where R<SP>1</SP> is a pyrrolidino, piperidino or morpholino radical or a di-(C 1 -C 4 ) alkylamino radical and acid addition salts thereof are prepared by reacting a bis-(p-chlorophenoxy)-malonyl halide of the formula wherein Hal is chlorine or bromine, with an alcohol or alcoholate of the formula ROX, wherein X is a hydrogen atom or an alkali metal, followed by optional conversion to an acid addition salt of the product. Phamaceutical compositions, useful in lowering the cholesterin and fat content in the blood, comprise, as active ingredient, a bis-(p-chlorophenoxy)-malonic acid diester of the first general formula above or a pharmaceutically acceptable acid addition salt thereof, in association with an inert, physiologically acceptable carrier or diluent. Bis - (p - chlorophenoxy) - malonyl chloride is prepared by reacting sodium p-chlorophenolate with diethyl dibromo-malonate, saponifying the resulting bis - (p - chlorophenoxy) - malonic acid diethyl ester and treating the bis-(p-chlorophenoxy)-malonic acid thus obtained with thionyl chloride.
Patent GB-1286708-A (GB)
Title: Mooring buoy
Inventor: RENZ EBERHARD
IPC: B63B22/02
Filed: 1970-05-11
Abstract: 1286708 Mooring buoys AKTIEN GES WESER 11 May 1970 [10 May 1969] 22727/70 Heading B7A A mooring buoy has counterbalancing means to urge the slip hook 7 into the position shown in full lines. The buoy is of flat topped cylindrical shape with a recess 10 in which a disc 6 is journalled for movement about axis 5, the disc being provided with a counterweight 9 and a pivotal mounting for hook 7. In a modification a counterweight and hook are mounted at opposite ends of a two-arm lever, Figs. 4-6 (not shown). In a further modification (Figs. 7-9, not shown) the hook is pivoted to a float (6) which forms the counterbalancing member. An anchor chain 16 is coupled to the buoy about axis 5 by straps 14. The buoy is provided with hand rails 4. More than one hook may be provided, and the hooks may be released from the ships' hawsers by remote control means (not shown).
Patent GB-295389-A (GB)
Title: Electrical maximum demand indicating device
IPC: G01R11/56
Filed: 1928-08-07
Abstract: 295,389. Siemens - Schuckertwerke Akt.-Ges. Aug. 11, 1927, [Convention date]. Special quantities, registering.- A thermal maximum demand indicator is connected during the time of peak loads by means of a frequency relay controlled from the central station by the injection of control currents. The pointer 1 is actuated by a thermostatic element 3 heated by a resistance 2. A second thermostatic element 4 renders the instrument independent of variations of room temperature. The pointer 1 actuates a non-return pointer (not shown). The heating resistance 2 is connected, in parallel with an adjustable resistance 5, to terminals 8, 12 to which are fixed contact springs 10, 11 which normally press against fixed pins 21, 22. Between the springs 10, 11 is a movable contact 13 controlled by a snap switch arm 15 which is moved into one or other of its two positions by the vibration of resonant tongues 18, 19 responsive to different frequencies. In the position shown the contact 13, which is connected to the terminal 7 of the instrument, makes contact with the spring 10 and connects the heater 2 in circuit. By the injection of a current of a frequency to which the tongue 19 is resonant, the switch arm 15 is moved over and the contact 13 makes contact, in its central position, with both springs 10, 11, short-circuiting the heater 2. In a modification the switch arm 15 controls a pawl normally engaging a ratchet-wheel on the spindle of the pointer 1, which is released only at times of peak loads. In a further modification the ratchet-wheel and pawl works directly on the thermostatic element 3. The maximum demand indicator can also be put out of action bv fixing a disengageable coupling between the thermostatic element 3. and the pointer 1, which can be supervised by a frequency relay..
Patent GB-723410-A (GB)
Title: Improvements in welding electrodes
Inventor: VERNON WILFRED JOHN
IPC: B23K11/30
Filed: 1952-02-10
Abstract: 723,410. Welding by pressure. MASSEYHARRIS-FERGUSON (MANUFACTURING), Ltd. Feb. 10, 1952, No. 22876/54. Divided out of 723,328. Class 83 (4). A welding electrode for resistance welding machines of the type having a water-cooled removable tapered electrode capable of being mounted in a correspondingly tapered bore in the electrode holder through which cooling water passes to the electrode and to a removable tip or nose 2 and in which said tip is formed with a tapered outer surface 2a to engage with an internal taper 1b on the electrode is characterized in that the tip or nose 2 is provided with flats 2c to accommodate a withdrawal tool. The tip may be of chrome or tungsten copper alloy and its extremity may be of truncated conical shape. The electrode shank 1 may also be formed with flats 2c for withdrawal purposes.
Patent GB-445232-A (GB)
Title: Improvements relating to the manufacture of stud link chains
IPC: B21L11/14
Filed: 1935-08-14
Abstract: 445,232. Making chains. NISHIMURA, M., 5, 1-Chome, Tamade-Tatsumidori, Nishinariku, Osaka, Japan. Aug. 14, 1935, No. 22928. [Class 83 (ii)] Stud link chains are manufactured by forming a bar 1 with a central integral stud 2 and curved ends projecting beyond the stud, inserting the ends of the bar 1 into other links 4 of the chain, bending the ends of the bar so that they butt together upon the end face of the stud 2, and welding them to the stud and to each other. Specification 15848 /13, [Class 24], is referred to.
Patent GB-1348845-A (GB)
Title: Method and apparatus for producing an internally toothed gear ring for a fluid pressure device machine and a honing tool for use in the method
IPC: B24B33/05
Filed: 1971-04-19
Abstract: 1348845 Gear honing; grinding DANFOSS AS 19 April 1971 [13 April 1970] 22936/71 Headings B3D and B3K In producing an internally toothed gear ring 1 for an hydraulic pump, motor or meter, said ring meshing and relatively planetating with an externally toothed gear-wheel, the ring is roughly preformed from a blank and finished shaped using a honing tool contoured to correspond with the root and flanks of the externally toothed gear teeth, the ring and the tool being given relative axial reciprocation and planetary movements. The ring 1 may be roughly preformed by broaching whilst stacked with one or more blanks. The honing tool comprises a ring of concave stones 11 engaging tapering flutes of a star-shaped carrier 7. The ring of stones may be radially expanded against garter springs 16, for precise setting and to offset wear, by rotation of a hand grip which acts on the stones via a screw thread 21, rod 15 and collar 14. As shown in Fig. 4, a honing tool 33 is reciprocated in a fixed bearing 34, and the ring 1 is mounted in a planetating holder 22. Alternatively, the ring is reciprocated and the tool planetated, or the tool may execute all movements.