baber/WOPTO huggingface dataset:
Patent GB-1278726-A (GB)
Title: Hydrostatic transmission
IPC: F16H61/42
Filed: 1970-04-15
Abstract: 1278726 Hydrostatic transmissions SUNDSTRAND CORP 15 April 1970 [9 June 1969] 18073/70 Heading F2D In an hydrostatic transmission comprising a swashplate pump 14a and a similar motor 16a, the pump is controlled by servos 30, 32 and a servovalve 82 through a manual selector lever 84 and a follow-up lever 94, and freeplay in the linkwork connecting the lever 84 and valve 82 is taken up continuously by a spring 138 acting on the valve spool 90 to urge it to its stroke reducing position, and a spring 146 acting, through a flange 127, on the link 84a connected to lever 84. In this way excessive movement of the pump swashplate due to reversal of torque in the transmission, e.g. when changing from uphill to downhill travel, is avoided. A torsional coil spring 116 transmits torque between levers 84a, 96 to prevent excessive movement of lever 84 from being transmitted to the valve 82. Suitable friction means (not further described), retains the handle 84 in its selected position.
Patent GB-964470-A (GB)
Title: Improvements in and relating to electric welding
Inventor: GOTCH RONALD WILLIAM
IPC: B23K9/028
Filed: 1962-05-10
Abstract: 964,470. Welding by fusion. FOSTER WHEELER Ltd. May 3, 1963 [May 10, 1962], No. 18108/62. Heading B3R. In an inert gas-shielded arc-welding torch for internally welding a stub tube 12 to a tube plate 10 or header, the holder 34 for a non- consumable electrode 36 is supported parallel to the axis of the stub tube 12 by guide members 26, 18 co-operating with the bores of the plate 10 and stub tube 12 and is orbited about the axis during welding. One guide member 26 is connected by a rod 24 to the other guide member constituted by a block 18 rotatable by a worm drive 20 in a body 16 clamped by a screw 22 to the stub tube 12. The electrode 36 is clamped in a block in the end of the tubular holder 34 to which cooling water is fed by a pipe 50. The holder 34 is surrounded by a ceramic gas tube 40 having an aperture 38 through which argon flows. In a modification, clearance is provided between one or both guide members 18, 26 and the tube 12 or plate 10 and spring-loaded locating members are provided in recesses in the surfaces of the guide members 18, 26.
Patent GB-1099683-A (GB)
Title: Improvements in and relating to elastic threads
Inventor: JOHNSON FRANK ROY
IPC: B29D99/00
Filed: 1964-05-01
Abstract: An elastic thread of rubber is made more resistant to the effects of boiling water and wear by providing an adhering coating of a cured polyurethane composition.  The coating may be applied by providing a polyurethane prepolymer which is coated on to the thread and then cross-linked by a conventional curing agent.  The prepolymer may be a polyisocyanate or polyisothiocyanate or a compound containing terminal groups having an active hydrogen atom.  Alternatively, the prepolymer and the cross-linking agent are mixed and immediately applied to the thread.  In a variant of this method an interface is formed between prepolymer and cross-linking agent and the thread is passed through the interface.  The thread can also be coated with a polyurethane latex which is subsequently dried to effect curing thereof.
Patent GB-1422475-A (GB)
Title: Electric exposure meter
IPC: G01J1/44
Filed: 1973-04-16
Abstract: 1422475 Exposure meters ASAHI KOGAKU KOGYO KK 16 April 1973 [14 April 1972] 18150/73 Heading G2X An exposure meter comprises a differential amplifier having a first input voltage proportional to minus log B and a second input voltage which is proportional to log S-log T or log S-log A or is constant whereby a meter M indicates log A, log T or log B respectively (B, S, T and A respectively indicating brightness, film sensitivity, exposure time and aperture). As shown the first input is derived from a photo-sensitive element D o  preferably connected to a memory capacitor C m  and the second input is derived by switching at SW 1  between a constant resistor R 6  and a resistor set according to T-S or A-S.
Patent GB-828409-A (GB)
Title: Improvements in or relating to means for stopping the feed in drilling operations, more particularly for jig drills
IPC: B23B47/18
Filed: 1958-06-06
Abstract: 828,409. Drilling. LINDNER G.m.b.H., H. June 6, 1958 [Sept. 14, 1957], No. 18235/58. Class 83 (3). In a drilling machine in which the drill spindle 2 is fed by an electromagnetic disc clutch 16, and the depth of feed is set by an adjustable trip-dog 9, the dog applies an electromagnetic brake 20 before, or at the same time as, it releases feed-clutch 16, which transmits less torque than the brake torque of the brake. Power feed is from a motor 5 driving, through gear 15-17 and clutch 16, a shaft 19 connected to the brake 20. A rack 3 on the spindle sleeve 1 is fed by a pinion 4 driven, through worm gearing, by the shaft 19. The worm-wheel may be clutched to the dog carrier 8 by operation of handles 6, the dog being adjustable by a scale on the disc and an associated adjustable vernier 12. A limit switch 10 operated by dog 9 interrupts the A.C. or D.C. supply 29 to a relay 22 controlling a contact 23 in the brake circuit 24 and a contact 25 in the circuit of feed clutch 16. A spring 22<SP>1</SP> returns the relay armature when switch 10 is opened by dog 9, closing brakecontact 23 and opening feed contact 25, which has an elongated segment 25<SP>1</SP> to delay its opening. A further switch 27 is provided, and a hand wheel 21 on the shaft 19, for manual adjustment of the feed.
Patent GB-141009-A (GB)
Title: Improvements in railway sleepers and connexions therefor
IPC: E01B3/12
Filed: 1919-07-22
Abstract: 141,009. Pitot, L. A., and Rousseau, F. P. A. April 2, 1919, [Convention date]. Sleepers, composite; sleepers. - Transverse or longitudinal wooden sleepers are fitted within longitudinal or transverse metal members to form a rigid framework. The wooden sleepers may each be formed by two pieces of wood, and when laid transversely the whole framework may be inclined, Fig. 6. The metal members may be sleepers, tie-beams, or ties, Fig. 3, with openings bounded by angle-members for engagement with the wooden sleepers; when the metal sleepers are transverse they may be inclined at their ends, Fig. 2. The Specification as open to inspection under Sect. 91 (3) (a) of the Act states also that the frame work may be adapted for use with points or crossings. This subject-matter does not appear in the Specification as accepted.
Patent GB-419045-A (GB)
Title: Improvements in luminous electric discharge lamps
IPC: H01J17/00
Filed: 1934-06-20
Abstract: 419,045. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand- Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) June 20, 1934, No. 18258. Convention date, Feb. 12. [Class 39 (i).] In a lamp of the type described in Specification 389,418 the annular anode is constituted by the end of a cylinder surrounding the container-like cathode over most of its surface and separated from it by an insulating layer. In one form, a metal container 2 forms the cathode and is covered by a vitreous tube 11 sealed to the envelope 1. The annular end 6 of a metal cylinder 9 surrounding the tube 11 constitutes the anode. The cathode 2 contains the metal, such as sodium, caesium, cadmium or mercury which is to be vaporized and its length is many times the distance between its open end and the anode 6. The lamp may have a rare gas filling. Specification 386,638 also is referred to.
Patent GB-494917-A (GB)
Title: Improvements in or relating to variable impedance devices
IPC: G10H1/34
Filed: 1937-07-01
Abstract: 494,917. Regulating switches. HAMMOND, L. July 1, 1937, No. 18347. Convention date, July 18, 1936. [Class 38 (v)] A device particularly for volume control in an organ, radio receiver, &c. comprises a plurality of impedances adapted to be connected in parallel preferably across the output circuit of the instrument, by a regulating switch. The switch comprises four banks of contact fingers 68 secured to insulating supports 48, 49, 50, 51, the contacts 72 of which are adapted to engage contact wires 66 welded to bars 62, 63, 64, 65. The contact fingers are actuated in succession by a rectilinearly sliding bar 34 having staggered cam portions on opposite sides thereof, engaging the overlying tips 71 of adjacent banks of contacts. The bars 62 .. 65 are preferably made of a nickel alloy and the contacting wires 66, 72 of a non-oxidizing and corroding alloy such as platinum-iridium or a palladium alloy. Resistances 80 or capacitive or inductive impedances are connected between the fixed ends of the contact fingers 68 and conducting bars 52, 54, Figs. 4, 6, whereby they are connected in parallel seriatim by actuation of the cam bar 34. In the case of an organ, for example, as described in Specification 454,502, the cam bar 34 is actuated by the swell pedal, the stroke of which is adjustable, and the impedances are connected in series with a condenser 94 across the output lines 90, 92 fed through a transformer.
Patent GB-313615-A (GB)
Title: Manufacture of condensation products from formaldehyde, thiourea and urea
IPC: C08G12/12
Filed: 1929-06-14
Abstract: 313,615. Soc. of Chemical Industry in Basle. June 15, 1928, [Convention date]. Addition to 275,995. Condensation products of urea and thiourea with formaldehyde.-In the process of the parent Specification, the solution obtained by addition of thiourea or a mixture of thiourea and urea to the primary condensation solution is worked up by evaporation only after the greater part of the free formaldehyde present has been fixed by standing at approximately neutral reaction and at ordinary or slightly raised temperature. The products obtained by evaporation are particularly stable, and varnishes prepared therefrom are fast to water. According to the examples, urea is mixed with formaldehyde solution and blood charcoal, then filtered and heated for some hours in an autoclave; the condensation product is exactly neutralized to litmus with caustic soda, mixed with thiourea and then either allowed to stand for some days or gently heated for some hours, whereby the formaldehyde content is reduced to small proportions; the product can then be worked up into a varnish or other material by evaporation.
Patent GB-1269558-A (GB)
Title: Copper alloys
Inventor: WATANABE SEIZO
IPC: C22C9/01
Filed: 1969-04-10
Abstract: 1,269,558. Copper base alloys. HITACHI SHIPBUILDING & ENG. CO. Ltd. April 10, 1969, No. 18501/69. Heading C7A. A cavitation-erosion resistant copper alloy comprises: - the balance being Cu. The alloys may be used for welding rods preferably for use in repairing or reinforcing ships propellers.
Patent GB-1423631-A (GB)
Title: Vibration densitometer apparatus with temperature compenstion
IPC: G01N9/00
Filed: 1973-04-17
Abstract: 1423631 Measuring fluid density electrically ITT INDUSTRIES Inc 17 April 1973 [17 April 1972 18 Sept 1972] 18503/73 Heading G1N A densitometer is generally as described in 1328888 (see Division G1) and is provided with temperature compensation by use of an epoxy bonding agent 200 for the Piezo-electric crystal 30' which agent softens as its temperature increases to damp the vibrations of the crystal and by use of a Piezo-electric crystal having a positive temperature coefficient to compensate for loss of output energy due to softening of the bonding agent.
Patent GB-530542-A (GB)
Title: Improvements in and relating to the utilisation of the exhaust gas energy of aircraft engines for propulsion purposes
IPC: F02K7/00
Filed: 1939-06-27
Abstract: 530,542. Propelling aircraft. JUNKERS FLUGZEUG - UND - MOTORENWERKE AKT.-GES. June 27, 1939, No. 18662. Convention date, July 9, 1938. Addition to 506,699. Drawings to Specification. [Class 4] Exhaust pipes of an aero-engine constructed as described in the parent Specification are surrounded by a stream-lined cowling to prevent the exhaust gases from entering the craft. In one form, the pipes protrude laterally from the aircraft body and the cowling is of the usual stream-lined form and in a modification the cowling is surrounded by a further cowling having openings at its leading and trailing edges.
Patent GB-385875-A (GB)
Title: Improvements in or relating to upholstery mountings
IPC: B60R13/02
Filed: 1932-07-01
Abstract: 385,875. Securing upholstery in position. BUDD MANUFACTURING CO., E. G., 2500, Hunting Park Avenue, Philadelphia U.S.A.-(Assignees of Ledwinka; J. ; 2500, Hunting Park Avenue, Philadelphia, U.S.A.) July 1, 1932, No. 18673. Convention date, July 9, 1931. Addition to 361,498. [Class 52 (iv).] A panel or wall 10 having a peripheral groove for a flexible tacking element 12 as set forth in the parent Specification is provided with a transversely bent edge flange 15 turned in the opposite direction to the mouth of the groove. The construction is particularly applicable to automobile doors when the edge 15 forms the jamb.
Patent GB-740139-A (GB)
Title: Improvements in or relating to beam restricting means for attachment to x-ray apparatus
IPC: G21K1/02
Filed: 1954-06-25
Abstract: 740,139. X - ray apparatus. PHILIPS ELECTRICAL INDUSTRIES,Ltd. June 25, 1954 [June 29, 1953], No. 18693/54. Class 98(1). In a beam-restricting tube for X-ray-therapy, particularly for irradiating cavities in the body, at least the part limiting the radiation is made of silver. The silver part may consist of a single casting. As shown, the silver tube 2 is set at an angle to the main tube 1.
Patent GB-795250-A (GB)
Title: Polymeric compositions
Inventor: DEVERELL-SMITH RAYMOND
IPC: C08K5/23
Filed: 1955-06-29
Abstract: Synthetic resins and cellulose derivatives are stabilized against ultraviolet light by incorporating therein at least one monoazo compound of the formula: <FORM:0795250/IV (a)/1> wherein A is a benzene nucleus carrying at least one negative substituent and X and Y stand for -CN, -COCH3, -CONH2 or -COO alkyl containing up to 4 carbon atoms in the alkyl group.  In a modification the monoazo compound may be a metal complex of the formula: <FORM:0795250/IV (a)/2> where M represents a metal ion such as chromium or nickel. Synthetic resins mentioned are polystyrene, polythene, polyvinyl chloride, polymethylmethacrylate, phenol-, urea- or melamine-aldehyde condensation products, polyamides, polyesters, solid or cellular polyurethanes, alkyd resins and butadiene polymers.  The cellulosic material may be regenerated cellulose or cellulose ethers or esters. The monoazo compound may be incorporated in the resin or cellulosic material as a powder by dry mixing, or added as a solution or dispersion to the molten polymers, or to solutions or dispersions of the polymeric material.  In the case of synthetic resins the monoazo compound may be added to the monomers prior to polymerization.  Other ingredients such as pigments, e.g. Waxoline Red, fillers such as titanium dioxide, plasticizers, e.g. dimethylphthalate and solvents may be added.  Specified monoazo compounds are ethyl-2 : 5-dichlorophenylazocyanacetate, diethyl - 3 - or 4 - sulphonamidophenylazomalonate, dimethyl - or diethyl - 2-or 3 - carboxyphenylazomalonate, the calcium salt of ethyl 2-carboxy-5-chloro-phenylazocyanacetate or methyl-4-chloro-phenylazoacetoacetate, dimethyl - 4 - diethylsulphonamidophenylazomalonate, the barium salt of ethyl2 - carboxyphenylazocyanacetate, n - butyl - 4-chlorophenylazocyanacetate, the reaction product of chromium acetate and diethyl-2-carboxyphenylazomalonate or diethyl-2-carboxy4 - chlorophenylazomalonate and ethyl - 2-carboxyphenylazocyanacetate. The stabilized compositions may be made into films, moulded, extruded or used as coatings or in laminates.
Patent GB-1040836-A (GB)
Title: Improvements in half-tone xerography
IPC: G03G16/00
Filed: 1963-05-13
Abstract: 1,040,836. Electrophotographic processes. RANK XEROX Ltd. May 13, 1963 [June 7, 1962], No. 18827/63. Heading G2H. In a charge transfer process, a half-tone screen pattern formed on an electrode provides a corresponding configuration of charge receptive areas in the surface of a deformable image receiving layer so that, when this is brought into transfer relationship with an insulating surface carrying a continuous tone electrostatic latent image, transfer occurs, at the areas, to form a half tone image on the deformable layer. The image is developed by softening the deformable layer with solvent vapour or heat. In one form, a conductive roller 18 has a half-tone screen pattern photo-mechanically etched on its surface and runs in contact with a web 16, having a polystyrene deformable layer, on a polyethylene terephthalate substrate, engaging a photoconductive layer 12 on an aluminium or glass cylinder 11. Silicone oil may be coated on either the surface 12 or 16 to facilitate transfer. The continuous tone electrostatic image may be produced by corona charging at 13 and exposure at 15 or, alternatively, the charging may be omitted and exposure may take place, by means of projector 23, simultaneously with the application of an electric field between 18 and 11. After transfer, the image is developed by heat at 21. In other forms (Figs. 2A-D, not shown), a conductive network may be interposed between the deformable layer and the substrate and roller 18 omitted. A metal network may be applied to the substrate by evaporation through a stencil or by photomechanically etching a foil. A transparent network may be of very thin metal or copper iodide and exposure may then be made through the substrate. After applying the network to the substrate the mouldable layer is coated over it. The conductive network may overlie a uniform slightly conductive layer. Reference has been directed by the Comptroller to Specification 772, 873.
Patent GB-116850-A (GB)
Title: Improvements in or relating to Stockless Anchors.
Inventor: TAYLOR JOHN
IPC: B63B21/44
Filed: 1917-12-19
Abstract: 116,850. Taylor, J. Dec. 19, 1917. Anchors.-A stoch-less anchor of the kind in which the flukes C, C<1> are independently pivoted to a cross bar B carried by the shank A has the flukes connected by a stop device which permits a relative angular movement, of less amplitude than the angular movenent of the flukes as a whole about the shank. The stop device comprises a projection a on cne fluke adapted to engage loosely a recess d in the other.
Patent GB-459441-A (GB)
Title: Improvements in the manufacture of dis-and trisazo dyestuffs
IPC: C09B35/37
Filed: 1935-07-02
Abstract: Azo dyes; regenerated celluloses, dyeing.--Polyazo dyestuffs are manufactured by coupling the tetrazo compound of 4 : 4<1>-diaminodiphenylamine or its sulphonic acids in an alkaline medium with one molecular proportion of a 1-amino-8-naphthol sulphonic acid capable of being coupled and one molecular proportion of a hydroxy compound of the benzene series capable of being coupled at least once.  If the resulting disazo dyestuffs are capable of being coupled they may be converted into trisazo dyestuffs by treatment with diazotized aromatic amines. The products are suitable for dyeing leather, especially velour leather, cotton and viscose artificial silk.  Examples describe the preparation of the following dyestuff: (1) 1 : 8 : 3 : 6-acid \sM 4 : 4<1>-diaminodiphenylamine --> p-cresol; the product yields dark blue to black shades on chrome calf velour leather and also dyes cotton; the second coupling component may be replaced by resorcinol and the tetrazo component by 4 : 4<1>-diaminodiphenylamine-2-sulphonic acid; (2) 1 : 8 : 2 : 4-acid \sM 4 : 4<1>-diaminodiphenylamine --> resorcinol or its monomethyl ether; the products dye leather and cotton blue shades; (3) 1 : 8 : 3 : 6-acid \sM 4 : 4<1>-diaminodiphenylamine-2-sulphonic acid --> resorcinol; the product dyes leather black shades; the second coupling component may be replaced by a trihydroxybenzene, e.g. pyrogallol or 1 : 3 : 5-trihydroxy-4-methylbenzene; by after-treating the dyestuffs with diazotized p-nitraniline, their shades are displaced towards green; (4) 1 : 8 : 3 : 6 - acid \sM 4 : 4<1> - diaminodiphenylamine --> m-hydroxydiphenylamine; the product yields dark blue to black shades on chrome calf velour leather; the first coupling component may be replaced by 1 : 8 : 2 : 4- or 1 : 8 : 4 : 6-acid, or by a 1 : 8-aminonaphthol monosulphonic acid, in which case the presence of at least one further sulphonic group in the second coupling component or in the tetrazo component is desirable; (5) 1 : 8 : 3 : 6-acid \sM 4 : 4<1>-diaminodiphenylamine-2-sulphonic acid --> 2<1> : 4<1> - dinitro - 3 - hydroxydiphenylamine; the product dyes chrome tanned velour leather blue-black shades; the second coupling component may be replaced by 5<1>-hydroxy-2<1> : 4<1>-dinitro-3-hydroxydiphenylamine or 2<1> : 4<1> : 6<1>-trinitro-3-hydroxydiphenylamine.  Other components specified are: first coupling components: 1 : 8 : 4- and 1 : 8 : 5-acids; second coupling components: phenol, hydroxydimethylbenzenes, salicylic acid and hydroxymethylbenzenecarboxylic acids. Specification 322,773, [Class 2 (iii)], is referred to. 5<1>-Hydroxy-2<1> : 4<1>-dinitro-3-hydroxydiphenylamine is obtainable by condensing 2 : 4-dinitro-5-chloro-1-hydroxybenzene with p 3-aminophenol in the presence of an acid-binding agent.
Patent GB-939177-A (GB)
Title: Improvements in or relating to telephone subscriber's apparatus
Inventor: ROWLANDS MARTYN OMAR
IPC: H04M1/02
Filed: 1961-05-25
Abstract: 939,177. Telephone sets. STANDARD TELEPHONES & CABLES Ltd. May 24, 1962 [May 25, 1961], No. 19007/61. Class 40 (4). The dial 10 or other sending device is located within the upper rim 9 of the subset body 2 and the handset 1 is provided with a rimmed earcap 3 large enough to cover the dial completely when the handset 1 is in position on the rest formed by raised extensions 12 of the subset body. These extensions run obliquely downwards towards the base to form a flat surface 13 on which the subset may rest for dialling. The dial may be illuminated in any suitable manner, and the illumination may be controlled by a switch, e.g. incorporated in the gravity switch, or merely by the light-attenuating effect of the rim of the earcap 3.
Patent GB-635588-A (GB)
Title: Improvements in book-sewing machines
IPC: B42B2/02
Filed: 1947-07-17
Abstract: 635,588. Sewing-machines. AULD, W. A. H., and AULD, J. T. July 17, 1947, No. 19143. [Class 112] Book-stitching machines.-In a straightneedle machine. the loopers 11 which carry the thread loops from the needles 2 to the hooks 3 are carried by a reciprocatory spindle having cam and follower engagement with a bearing for the spindle to rotate the spindle during the latter part of the movement of the loopers past the hooks so as to draw the threads against the hook shanks. In the mechanism shown, in a machine of the kind described in Specification 621,920, the loopers are mounted on a slidable and oscillatable bar 12; a parallel bar 24, slid against spring pressure by a cam-actuated lever (not shown) engaging its end 23, transmits its sliding motion to the bar 12 by a connection 29 which permits rotation of the latter bar. The other end of the bar 12 rests in an adjustable sleeve 31, and has a pin engaging a slot 33 in the sleeve, and the inner end of this slot is curved as shown to cause angular movement of the bar 12 after it has moved longitudinally sufficiently to carry the loopers past the hooks.
Patent GB-570706-A (GB)
Title: New or improved apparatus for inducing motion electrically in a conducting fluid
IPC: H02K44/06
Filed: 1943-11-17
Abstract: 570,706. Converting electric energy into motion of fluids by the action of magnetic fields. BURNAND, W. E., and FIRTH & J. BROWN, Ltd., T. Nov. 17, 1943, No. 19170. [Class 35] Apparatus for inducing motion in a fluid consists of two or more separate parallel magnetic systems A, B, C with inwardly directed or consequent poles NS excited by polyphase current. The poles may be displaced angularly relatively to one another if it is desired to give the motion a horizontal component.