baber/WOPTO huggingface dataset:
Patent GB-927995-A (GB)
Title: Improvements in or relating to boat construction
Inventor: CALKINS GEORGE ANTONE
IPC: B63H20/04
Filed: 1961-03-27
Abstract: 927,995. Planing bottoms; detachable engines. CALKINS CRAFT BOAT CO. March 27, 1961, No. 11125/61. Classes 113 and 114. A double-ended boat has a keel 11 running from the stem post 10 at least to midsection, and chines 13 running from the stempost 10 to the sternpost 12 and disposed so that the bottom is V-shaped amidships and forward, and flat-bottomed aft. Spray rails 21, extending rearwardly from above to below the waterline 20, are fitted to improve directional stability. The boat is driven by an outboard motor 23 fitted in a well 22 and detachably secured to a transom board 24. The well may be of the size shown in Fig. 2 (and Fig. 8, not shown) where the motor 23 may pivot about a horizontal transverse axis to clear submerged obstacles, or the well may be smaller, as shown in Fig. 9, the engine being fixed, and steering being effected by a rudder 42.
Patent GB-228096-A (GB)
Title: Improvements in magnetically controlled heat treatment of materials, suitable for hardening steel articles
IPC: C21D11/00
Filed: 1924-05-06
Abstract: 228,096. O'Donovan, D. S. Jan. 25, 1924, [Convention date]. Addition to 205,037. Hardening.-In a method of hardening steel articles of the kind described in the parent Specification, the most highly heated part of the article and a less highly heated part are both within the effective field of the magnet, the article being retained in the heating zone by the magnetic attraction on the less highly heated part after the most highly heated part has been heated to a temperature at which it ceases to be magnetic. The article 6 to be treated is mounted as described in the parent Specification so that the end projects into the muffle 5 of the furnace, the strength of the field created by the magnet 9 being adjusted by the current controller 10. The effective field extends over the end or most highly-heated portion 6a as well as a less highly heated portion 6<b> so that when the portion 6b has reached the hardening temperature and become non-magnetic the magnetic attraction is still exerted on the part 6b. When the magnetism remaining in the portion 6b is just overcome by the weight 8 the article will be withdrawn from the furnace. This treatment is specially applicable for alloy steels. In treating a relatively small article, the latter is made part of a ferrous body such as an elongated holder and the composite treated as above.
Patent GB-890752-A (GB)
Title: Improvements in or relating to vibrators
Inventor: BRADING KENNETH FRANCIS
IPC: H02K33/00
Filed: 1959-04-02
Abstract: 890,752. Vibratory mechanism. GENERAL ELECTRIC CO. Ltd. April 1, 1960 [April 2, 1959], No. 11319/59. Class 80 (4). In order to increase the peak acceleration of which a vibrator is capable, a resonant device is attached to the moving system of the vibrator. The resonant device comprises hub members 2, 3, between which a resilient disc 4 is clamped, and an annular member 5, in two parts 22, which is supported from the periphery of the disc 4 by six balls 17 located in cages 18. The disc 4 has three symmetrical arcuate slots 7 near its periphery, and relative rotation of the member 5 with respect to the heels 2, 3 causes variation of the positions of the balls 17 with respect to the slots 7 and hence variation of the frequency at which the device resonates. The hub 3 is secured to the moving system of the vibrator and the outer face 16 of the hub 2 is then used as a table to which equipment to be tested is attached. The balls 17 may be replaced by rollers. Specification 885,024 is referred to.
Patent GB-494300-A (GB)
Title: Improvements in or relating to methods of producing abrasive or wear-resistant articles
IPC: B24D3/34
Filed: 1937-04-20
Abstract: An article having a surface of a metal-bonded or wear-resistant material is produced by bringing together abrasive grains, a metal powder and a non-metallic fluxing agent for the metal and treating the metal powder to sinter it and cause it to bond the abrasive grains.  Examples of the fluxing agent used are those containing borax, potassium acid fluoride boric oxide or potassium carbonate or a solution of borax and boric oxide may be used.  The metal powder may be sintered under a low-pressure of 50-500 lb. per sq. in.  As metal component of the mixture, copper nickel bronze, brass silver solder or metals of low melting point such as tin or lead may be used and the abrasive may comprise diamonds, silicon carbide, boron carbide or fused alumina.  If the metal powder in the mixture comprises copper or nickel the flux used is borax or a solution containing borax and a water-soluble fluoride.  In the production of the article, the solution of the flux, the metal powder and the abrasive grains are ultimately mixed together and the excess water removed by evaporation.  The mixture either in a damp condition or in broken down granular form is introduced into a mould of the desired shape contained in an electrically heated chamber provided with means for applying pressure to the mould. Heat and pressure are now applied simultaneously, and for a mix containing only copper as the metal, a temperature of 750 DEG  C. and a pressure of 50 lb. per sq. in. is necessary.  The whole of the article may be made in this manner or only the surface, e.g. the surface of a metal wheel or grinding disc. In a modification, the metal and flux are mixed together and then a diamond or diamonds are inserted in the surface of the mix which forms a mounting for the diamond &c. before heat and pressure are applied.
Patent GB-1479450-A (GB)
Title: Thrust producing devices
IPC: F03G3/08
Filed: 1975-06-12
Abstract: 1479450 Thrust-producing mechanisms E J C RICKMAN 12 June 1975 [14 March 1974] 11353/74 Heading F2X A thrust-producing mechanism comprises support means attached to a rotatable axle means and carrying at least one mass extensive in a plane which is inclined at an angle to a plane perpendicular to the axis of rotation of the axle means, and means for rotating the mass about an axis perpendicular to the plane in which it is extensive. In the embodiment illustrated, an axle 1 fixedly carries pairs of support arms 2 between which metal discs 4, 7 are rotatably mounted by means of sub-axles 3, 6. The subaxles 3, 6 are inclined, in opposite directions, to the axle 1. Means (not shown) are provided for rotating the discs 4, 7 about their axes of rotation in the same direction and at the same angular velocity as the axle 1 is about its axis of rotation. This produces a thrust along the axis of rotation of the axle 1, in the direction of the arrow 8 when the direction of rotation is clockwise. The overall angular velocity of a point on the edge of a disc 4, 7 is greatest when furthest from the axle 1 and substantially zero when closest to the axle 1. The reaction from the motion of the fastest moving point of each disc imparts a thrust in the direction of the arrow 8 in the opposite direction to that of the fastest moving part of the inclined disc. Greater thrust may be achieved by disposing more discs around the axle 1 and also by stacking further pluralities of rotatable discs along the length of the axle 1. To control the thrust produced, the discs may be rotated at a predetermined angular velocity with the axle 1 stationary, and the axle 1 accelerated as thrust is required to be developed.
Patent GB-812843-A (GB)
Title: Improvements in refrigerators
Inventor: KLEIST HERMAN WILLIAM
IPC: F28D7/02
Filed: 1957-04-08
Abstract: 812,843. Refrigerating. DOLE REFRIGERATING CO. April 8, 1957, No. 11391/57. Class 29 In a compression refrigerating system, means are provided for maintaining the temperature of the compressed refrigerant gas entering the condenser within a prescribed range, regardless of ambient temperature, including a heater for supplying heat to the refrigerant gas between the compressor and condenser. The heater is in the form of a cylindrical shell 10 containing a helical baffle 13, through which refrigerant flows surrounding a central tube 14 containing an electrical heating element, the current to which is controlled by a thermostat 16 placed near the refrigerant inlet 6.
Patent GB-716451-A (GB)
Title: A novel indoline derivative and process for the manufacture thereof
Inventor: COHEN AARON
IPC: C07D457/04
Filed: 1952-05-06
Abstract: The invention comprises 1-acetyl-31-carboxy-11 - methyl - 4,5 - (11 - aza - tetramethylene)-benz - (c,d) - indoline of the formula <FORM:0716451/IV (b)/1> The compound is prepared by heating 4-hydroxy-naphthostyril with an excess of methylamine in an inert solvent (e.g. methanol, ethanol, butanol, pyridine, dioxane or dimethylaniline) under pressure, benzylating the 4 - methylamino - naphthostyril so formed using benzyl chloride or bromide in the presence of a halogen acid binding agent (e.g. anhydrous potassium carbonate) and, if desired, in the presence of potassium iodide, reducing the 4-(N - benzyl - N - methyl - amino) - naphthostyril so formed with lithium aluminium hydride in a mixture of ether and dioxane, acetylating the reduction product with acetic anhydride to give 1 - acetyl - 4 - (N - benzyl - N - methyl) - aminobenz - (c,d) - indoline, hydrogenating this latter substance to remove the benzyl group using preferably a palladium-charcoal catalyst and acetic acid as a solvent, condensing the 1-acetyl - 4 - methylamino - benz - (c,d) - indoline so formed with a bis-(halogeno-methyl)-malonic acid di-alkyl ester (preferably diethyl bischlormethyl-malonate) in the presence of an acid-binding agent (e.g. anhydrous potassium or sodium carbonate) and using an anhydrous n-butanol solvent, hydrolysing this condensation product directly with an alkali-metal hydroxide solution (e.g. sodium hydroxide solution) in the cold, isolating the hydrolysis product by acidifying with a weak acid (e.g. acetic or tartaric acid) and heating it in a high-boiling liquid (e.g. decahydronaphthalene) preferably to a temperature of about 220 DEG C., extracting with aqueous sodium bicarbonate solution and isolating the 1 - acetyl - 31 - carboxy - 11-methyl - 4,4 - (11 - aza - tetramethylene) - benz-(c,d)-indoline from this extract by cautious acidification with glacial acetic acid.  Bis - bromomethyl - malonic acid diesters (e.g. the diethyl ester) are prepared by treating the appropriate bis-(hydroxymethyl)-malonic acid diesters with phosphorus tribromide and brominating the product with bromine. Specification 702,766 is referred to.
Patent GB-1304812-A (GB)
IPC: C07D239/34
Filed: 1971-04-26
Abstract: 1304812 Pyrimidines LONZA Ltd 26 April 1971 [28 April 1970] 11468/71 Heading C2C Compounds of formula in which R is hydrogen, C 1-17 -alkyl, aryl, alkylaryl or cycloalkyl, each R<SP>1</SP> is hydrogen or halogen, at least one R<SP>1</SP> being halogen, and R<SP>11</SP> is hydrogen, halogen or alkyl, are prepared by reaction of a haloacetoacetic acid reactive derivative with an amidine RC(NH 2 )=NH in the presence of an alkali metal alcoholate. The products are insecticides or insecticide intermediates.
Patent GB-570493-A (GB)
Title: Improvements in or relating to linear dimension gauges
IPC: G01B5/00
Filed: 1943-07-14
Abstract: 570,493. Linear-dimension gauges. KAPELLA, Ltd., and COOKE, E. A. July 14, 1943, No. 11487. [Class 106 (ii)] A linear-dimension gauge comprises a body A to which slides a feeler E adapted to engage the work W, the feeler rocking a lever F during movement to the left and a lever F<1> upon movement to the right, each lever operating an associated control element controlling an indicating or recording instrument. The body A is slidable along guide B<1> and is locked thereto by a handle secured to a shaft having an eccentric part arranged to lift studs A3 acting on plates bearing on the under-surface of the guides. The body A can also be locked to a rod D. Adjustable along the guides by a nut and screw (not seen in Fig. 1). The feeler E engages the levers F, F<1> by means of a flange E<6> and an adjustabte collar E the levers being connected to the gauge body by ligaments F<2>. The control elements are of the kind described in Specification 541,628, [Group XXXV], and are carried in a casing G, Fig. 3, slidable in a cradle G<1> supported on parallel spring ligaments G<4>. One control element comprises a pair of coils G<2>, G<3> carried in the casing G, the casing being moved by the lever F' acting through a thrust rod G<6>, the other control element being an armature G' slidable inside the casing in accordance with movements transmitted from the lever F through a second thrust rod G<6>. When in normal position, each lever F, F<1> rests against a stop F<3> so that when the feeler E is in moving, say, to the left to operate lever F and control element G<7>, movement of the other lever F<1> and its associated control element is prevented by the stop F<3>, and vice versa. The coils G2, G<3> are connected in an electric circuit so that relative movement between the coils and the armature varies the reading of an indicating instrument in the said circuit. An abutment block H is slidable along the guides B<1> and carries a stop spindle H<2> adjustable by means of a micrometer head H<3>. A similar abutment block and stop spindle may also be provided adjacent the other end of the feeler E. In a modification, the feeler may be arranged vertically and biassed in the downward direction by a spring.
Patent GB-844902-A (GB)
Title: Filler or tamper for tobacco pipes
IPC: A24F9/02
Filed: 1958-04-11
Abstract: 844,902. Smokers' accessories. HEUSSER, W. April 11, 1958 [April 17, 1957], No. 11551/58. Class 130. On depression of a pivoted member 4 a catch 11 releases a pin 10 to allow a spring 9 to project a slider 6 so that is head 15 uncovers a tobacco pipe tamper 2 which is then pivoted into the operative position shown by a slider portion 13 engaging a tamper portion 12. A pipe scraper or a pricker 16 which may be pivotally mounted is provided
Patent GB-437873-A (GB)
Title: Improvements in the manufacture and production of glutamine
Filed: 1935-04-15
Abstract: Glutamine is obtained by converting g -esters of glutamic acid which are substituted by the radicle COOR (where R is an organic radicle) on the nitrogen atom, into amides by treatment with ammonia or amines, and treating the products with hydrogen.  The said initial materials are obtained by treating the g -esters of glutamic acid with chlorocarbonic esters of alcohols.  These are converted into amides with liquid ammonia, for example, followed by treatment with hydrogen preferably in presence of a hydrogenation catalyst.  The amides may also be obtained by converting the g -ester into the hydrazide with hydrazine, followed by treating with nitrous acid to convert to the azide, followed by treatment with ammonia.  According to examples, the N-carbobenzoxy-d-glutamic-g -ethyl ester is treated with: (1) liquid ammonia followed by hydrogen in presence of palladium catalyst, or with (2) anhydrous hydrazine, followed by treatment of the hydrazide obtained with nitrous acid, and of this product with ammonia, followed by reduction of the product with hydrogen and catalysts.  The product obtained is d-glutamine.
Patent GB-988554-A (GB)
Title: Liquid fuel injection pumps
Inventor: CLIFTON WILLIAM LOUIS
IPC: F02M59/00
Filed: 1963-03-25
Abstract: 988,554. Fuel injection pumps. BRYCE BERGER Ltd. March 18, 1964 [March 25, 1963], No. 11642/63. Heading F1A In a fuel injection pump, the inlet chamber 6 into which the pump spills through the port 9, has a sleeve 11 of spring steel to protect the chamber wall from erosion.
Patent GB-1315771-A (GB)
Title: Electrochemical machin
IPC: B23H7/18
Filed: 1971-04-27
Abstract: 1315771 Electro-machining NASSOVIA WERKZEUGMASCHINENFABRIK GmbH 27 April 1971 [5 Sept 1970] 11658/71 Heading C7B In electro-chemical cavity sinking, the cathodic tool 1 is moved towards the anodic workpiece 2 by a feed motor e.g. by way of spindle 4 and quill 3, the working gap is adjusted, then electrolyte is pumped through the gap and the machine frame stretch caused by the hydrostatic forces F produced by the electrolyte between the workpiece and tool is compensated for; e, g. by transmitting the frame stretch motion S, via a steel band 6 fixed by one end to the tool holder 17 and by the other to a disc 12 onto which the band can be rolled, to a switching member mounted on a rotatable disc (26), Fig. 2 (not shown), opposite and co-axial with another rotatable disc (27) carrying a switch (10) for the feed motor, a spring 7 with steel band 25 running over disc 8 transmitting a returning force.
Patent GB-367624-A (GB)
Title: Improvements in or relating to talking-film installations
IPC: G11B7/00
Filed: 1931-04-20
Abstract: 367,624. Valve amplifying circuits. RADIORÍHRENFABRIK GES., 101, Stresemannalle, Hamburg, Germany. April 20, 1931, No. 11661. Convention date, April 28, 1930. [Class 40 (v).] The grid circuit of the first valve of a thermionic amplifier, the input of which is taken from a photo-electric cell, is coupled to the anode circuit of the same or succeeding valve by means of a circuit which enhances the feedback of high frequencies relative to the low. The anode-grid capacity 13 in series with the winding 10 of the coupling transformer, is effectively in parallel with the resistance 2 associated with the photo-electric cell 1. When the resistance 2 is large the circuit 13, 10 has an appreciable shunting effect causing attenuation at high frequencies. To compensate for this, a feed-back circuit comprising condenser 8 and inductance 9 is so designed and coupled to the inductance 10 that high frequency feed-back is emphasized.
Patent GB-1498926-A (GB)
Title: Cleaning tyre moulds
IPC: B29C33/72
Filed: 1976-03-23
Abstract: 1498926 Cleaning tyre moulds GOODYEAR TIRE & RUBBER CO 23 March 1976 [17 April 1975] 11685/76 Heading B5A Apparatus for cleaning a tyre mould part comprises a cylindrical steel tank 12 heated externally by a steam jacket 36 and containing an abrasive-free cleaning liquid 14. Projecting upwardly through the centre of the tank is a hollow post 70 over which a lifting frame 60 is received, the periphery of the lifting frame being supported upon a ring gear 42. The ring gear is supported upon a top flange 42 of the tank by a bearing and is slowly driven (less than 1 ft. per minute) by a pinion 46 itself driven through shafts 48 and 52 by a motor 56. Bolted to the underside of the frame 60 is the top wall 130 and side wall segments 82 of a tyre mould and a series of ultrasonic sources 100 are adjustably supported from post 70 in such a way as to direct ultrasonic vibration on to the working surface of the mould parts as they rotate with no part of the surfaces being shadowed by another part. Electrical leads 120 are fed to the ultrasonic sources via the interior of the post 70 which has a conical upper surface 44 to ensure easy placement of the lifting frame. Cleaning liquid is fed to and taken from the tank via inlet 32 and outlet 34 and an overflow 30 is provided. In a variation, (see Fig. 5) the bottom wall of a tyre mould is suspended by a lifting frame in a tank of cleaning liquid and treated with ultrasonic vibrations from sources 100<SP>1</SP> fixed to the underside of the tank around the post 70.
Patent GB-474049-A (GB)
Title: Improvements relating to pulverized fuel burners
IPC: F23L17/00
Filed: 1936-04-24
Abstract: 474,049. Pulverulent-fuel burners. BRITISH REMA MANUFACTURING CO., Ltd., and HOWDEN, P. April 24, 1936, No. 11686. [Class 75 (i)] In a powdered-fuel burner for producing a long licking flame comprising a nozzle A for the fuel and primary air and a surrounding nozzle B for the secondary air, both made of constant section for a sufficient distance to ensure combustion taking place progressively with a minimum amount of turbulence, the nozzle B is formed as a valve displaceable on guide-rods E relatively to a conical opening C<2> in the secondary air chamber to allow some or all of the secondary air to be supplied around the nozzle B to modify the length and shape of the flame. An inclined baffle D is turned in front of the nozzle A at starting to produce a turbulent flame for rapidly raising the refractories near the burner to a sufficient heat to ensure the maintenance of ignition. The nozzles A, B may be round, oval, square or oblong in cross-section.
Patent GB-622470-A (GB)
Title: Improvements in or relating to electric measuring instruments for measuring the moisture content of materials
IPC: G01N27/22
Filed: 1946-04-16
Abstract: 622,470. Capacitance measurement. MARCONI INSTRUMENTS, Ltd., BROCKELSBY, C. F., and TODD, W. A. H. April 16, 1946, No. 11697. [Class 37] In an apparatus which measures moisture content of tobacco, wool, &c., the bulk density D of the test material need not be standardized. The invention is based on the relation k= a+bD, wherein k is dielectric constant, a is a constant and b depends on the moisture content and test frequency. Fig. 2 shows a bridge arrangement which measures the moisture content of tobacco for which material a=1. In Fig. 2, the ratio arms each comprise a fixed condenser shunted by a resistor (7, 9 and 8, 10) and the variable arms respectively, the test condenser 1, 2 in parallel with a condenser 12 and a variable condenser 6 (corresponds to bd) in parallel with a condenser 11. At balance prior to test, i.e. with condenser 1, 2 empty of test material the respective capacities of the condenser 6, set to its minimum value, and the condenser 12 are equal and the capacity of condenser 11 equals that of the test condenser 1, 2 empty (C o ). The test material is inserted in the test condenser 1, 2 and switch 13 placed in position 14 to apply high frequency f H  to the bridge from oscillator 4 ; test condenser 1, 2 now possesses capacity K H Co, therefore the bridge is off balance as indicated by meter 24. Condenser 6 is varied to restore balance and the switch 13 thrown over to position 15 to apply low frequency f L  from a variable tapping on potentiometer resistance 16 connected across oscillator 4. Test condenser 1, 2 now possesses capacity K L Co and the bridge is again off balance. In this case condenser 6 is undisturbed and the balance restored by varying the position of the potentiometer tapping. Potentiometer 16 is scaled in terms of moisture content and the position of the tapping indicates directly the amount of moisture present in the tobacco under test. Mathematical proof that potentiometer 16 may be so scaled is given in the Specification. The bridge output is taken through condenser 17, 18 and rectified by diodes 19, 20; coupled to meter 24 through resistances 21, 22.
Patent GB-579219-A (GB)
Title: Improvements relating to portable platforms
IPC: B66F11/04
Filed: 1944-06-20
Abstract: 579,219. Builders' scaffolding and staging. LANCHESTER, F. June 20, 1944, No. 11713. [Class 20 (ii)] [Also in Group XXX] Two separate platforms e, f are independently movable either from the platform itself or from the ground. One platform carries a workman and the other, building materials. The platforms are carried by a base a which may form part of a vehicle provided with wheels b and feet c which are adjustable to support the base rigidly upon the ground. The platforms may be on posts d and raised or lowered by rotating handles h or m on two shafts k passing through screw-threaded holes g in the platforms, the shafts being geared together by bevel wheels i and horizontal shafts. Alternatively the platforms may be raised or lowered by hydraulic rams or by three lazy tongs which are expanded or contracted simultaneously.