baber/WOPTO huggingface dataset:
Patent GB-855526-A (GB)
Title: Improvements in or relating to apparatus for controlling combustion in a solid fuel boiler or furnace
IPC: F23N1/02
Filed: 1959-09-11
Abstract: 855,526. Controllers. CROOK, C. Sept. 11, 1959, No. 31093/59. Class 38 (3). [Also in Group XII] In an arrangement for controlling the fuel/air ratio in a solid fuel furnace the motor driving a mechanical stoker is started by contact between a driven cam and a contact arm, the position of which is adjusted in accordance with the air supply pressure, or the difference in pressure between the combustion chamber and the side flues of the furnace. The shaft of the variablespeed cam motor 39, Fig. 3, carries an arm 40 which opens contacts 41 at a predetermined point in its revolution to de-energize relay 43, and stop the stoker motor 12. A change-over contact 46 in relay 43 changes the section of potentiometer 45 in circuit with the cam motor 39 so that the cam motor may run faster or slower during the fuel feed intervals. In a modification, a variable resistance in the cam motor circuit is shorted out through a contact on the starter relay so that the resistance is in circuit when the stoker motor is running or so that the resistance is in circuit when the stoker motor is off. Specification 737,383 is referred to.
Patent GB-485108-A (GB)
Title: Improvements in or relating to the manufacture of esters
IPC: C07C51/14
Filed: 1936-11-14
Abstract: Esters are produced by passing an olefine, an organic acid, and a compound of phosphorus through a heated reaction zone.  The acid may be monobasic, such as acetic, propionic or butyric acid, or dibasic such as succinic acid, and in the latter case the product may be a mixed ester derived from two olefines.  The catalysts may be acid or basic phosphorus compounds, or derivatives thereof, such as phosphoric acid and its ammonium and amine salts, phosphoric acid esters, and phosphoric and phosphorous amides and substituted amides, a large number of which are mentioned; the acid phosphorus compounds such as phosphoric acid, its esters, and ammonium phosphate may be employed together with volatile bases such as ammonia or pyridine. Basic phosphorus compounds such as phosphine, substituted phosphines, tetraphosphonium bases, and triphosphine oxides may also be used as catalysts. Preferably the olefine and the acid react in the vapour phase, and the catalyst is in a finely-dispersed condition or in vapour phase.  The reaction mixture, including the catalyst, may be passed through a heated tube which may contain a solid or molten catalyst, and the tube may be provided with means for securing a turbulent flow; or the reaction mixture may be passed through a molten catalyst which may be a mixture of sodium and lithium phosphates.  The reagents may be preheated, and the catalyst may be injected as a solution or suspension in a liquid such as acetic acid or a liquid which will form an azeotropic mixture with one of the products.  The reaction products are preferably cooled quickly so as to liquefy one or more of the products.  An example describes the production of ethyl acetate from ethylene and acetic acid the catalyst being triethyl phosphate in acetic acid.
Patent GB-1525221-A (GB)
Title: Longitudinally displaceable connection for cantilevered beam-type structural parts
IPC: E01D19/06
Filed: 1977-07-25
Abstract: 1525221 Bridges DYCKERHOFF & WIDMANN AG 25 July 1977 [27 July 1976] 31180/77 Heading E1G The adjacent ends of a pair of cantilevered beam-type structural members 21, 31, e.g. for a bridge, comprise a projecting part 32 secured to and extending outwardly from the end of one member into the end of the other member where it is supported by a first bearing 35 and a stiffening part 25 rigidly connected to one member and extending outwardly from the end thereof into the adjacent end of the other member where it is supported by a second bearing 36, said bearings being horizontally displaceable and suitable for the transmission of shear forces. The stiffening part may comprise a tension element 29.
Patent GB-339725-A (GB)
Title: Improvements in apparatus for dispensing liquids
IPC: B67D1/04
Filed: 1929-10-15
Abstract: 339,725. Gaskell & Chambers, Ltd., and Weightman, J. S. Oct. 15, 1929. Regulating compression.- A liquid dispensing plant comprises a compressor 17 delivering air to a pressure vessel 13, containing water, from which a pipe leads to a liquid vessel 44 containing a float or piston 47; the float carries a rod 46 on which are collars 48, 49 co-acting with a switch-actuating member 50 having pins passing through a cross bar 45 on the vessel ; the switch controls the motor 21 driving the compressor. The compressed air passes from the storage vessel 13 through a filter 25 and a reducing valve 27 to a pipe 28, whence pipes 29 - - 31 lead to barrels 1 - - 3 supplying the beer &c. to be dispensed.
Patent GB-994758-A (GB)
Title: Agitator for washing machines
IPC: D06F13/00
Filed: 1963-08-07
Abstract: 994,758. Washing machines. R. R. WALTON. Aug. 7, 1963, No. 31231/63. Heading D1A. An oscillating agitator of a washing machine comprises a series of flexible vanes 26 extending outwardly from one end of a central post 16 which has a series of shorter ribs 18. The vanes 12 are preferably of a flexible plastics material such as polypropylene and may be joined to a central post of a phenolic plastic by a suitable cement such as an epoxy resin. The vanes 12 may be of resilent sheet metal and the post may also be of metal.
Patent GB-773681-A (GB)
Title: Device for dredging ditches and dykes, and for like operations
IPC: E02F5/02
Filed: 1954-10-29
Abstract: 773,681. Ditch - dredging apparatus BROWN, A., MARTIN, C S., SWALES, J., and BECFABS (ENGINEERS), Ltd. Oct. 26 1955 [Oct. 29, 1954], No. 31324/54. Class 68 (1). To permit control of the movement of the scoop 36, with respect to the jib 1 of a ditchdredging apparatus, and of the jib 1 with respect to the tractor T on which it is pivotally mounted, there is secured at 19 to the hydraulically actuated lift linkage of the tractor a frame 15 pivotally connected at 16 to a bell crank lever 13, 14 rotatably mounted on a transversely disposed shaft 11 of the jib 1 and connected by a cable 39 to the scoop 36. As the lift linkage urges the frame 15 upwards, the lever 13, 14 rotates about the shaft 11 to tension the cable 39 and thus control movement of the scoop with respect to the jib. On the stops 20 secured to the frame 15 engaging the shaft 11, further upward movement of the frame 15 causes upward pivotal movement of the jib. The structure 26, 27 supporting the scoop 36 from the jib 1 forms the subject matter of Specification 773,682, which is referred to.
Patent GB-638705-A (GB)
Title: Improvements in or relating to electric positional control servo systems
IPC: G05D3/12
Filed: 1946-10-22
Abstract: 638,705. Electric control systems. SPERRY GYROSCOPE CO., Inc. Oct. 22, 1946, No. 31361. Convention date, Oct. 22, 1945. [Class 40 (i)] A servomotor is controlled by the usual error voltage to which is added algebraically an auxiliary signal, dependent on lost motion in the transmission between the servomotor and the load, and derived from a signal generator, e.g. of the E transformer type, responsive to the lost motion. The auxiliary signal is a decaying transient dependent on the rate of change of the lost motion. As shown, a servomotor 5 drives a load 1, e.g. a gun platform, through a power gear train 3 in correspondence with a control pointer 33. The error voltage is derived in the usual way from the displacement between the rotors of the Selsyn transmitter 29 and receiver 11 and applied over lines 13 and amplifier 7 to the motor 5. The rotor of the Selsyn receiver 11 is driven through a precision gear train 23, i.e. one in which there is no back-lash, from the load 1. The receiver rotor and the servomotor 5 drive respectively the rotor and stator of an E-type transformer 37 which are relatively displaced in accordance with the lost-motion or back-lash in the power gear train 3. The transformer output which varies in magnitude and phase sense in accordance with magnitude and sense of the lost motion is rectified in a phase-sensitive demodulator 49, the unidirectional output from which is differentiated at 47 and applied through the amplifier 7 where it is combined degeneratively with the error signal to control the motor 5. The function of the signal generator 37 may be performed by either the transmitter 29 or receiver 11 by imparting to the stator thereof a displacement proportional to the lost motion in question. The E-type transformer is normally adjusted to provide zero output when the lost motion is zero, but it may be adjusted off-centre so that it provides a signal voltage output of one phase sense only. In this case a simple rectifier replaces the phasesensitive demodulator 49. Specification 603,221 is referred to.
Patent GB-1069573-A (GB)
Title: Moulding composition
IPC: C08L9/00
Filed: 1964-08-04
Abstract: A composition comprises from 5 to 35 parts by weight of a flexible polymer (A) prepared by polymerizing a mixture of 20 to 60% by weight of butadiene, and 0 to 60% by weight of methyl methacrylate, and/or 0 to 80% by weight of ethyl acrylate, said mixture containing up to 5 parts by weight per 100 parts of monomers of a cross-linking agent which is a monomer other than an aliphatic conjugated diene containing at least two non-aromatic unsaturated bonds in its molecule, and from 95 to 65 parts by weight of a rigid resinous polymer (B) prepared by polymerizing 80 to 100% by weight of methyl methacrylate with 0 to 20% by weight of methyl acrylate.  The polymer (A) is prepared in emulsion and the polymer (B) is prepared in emulsion or dispersion.  The composition may be formed by blending latices and coagulating or by mixing in the solid state or by other means.  Conventional antioxidants may be added.
Patent GB-490836-A (GB)
Title: Improvements in holders for photographic films, plates, or other light-sensitive elements
IPC: G03B17/34
Filed: 1936-11-17
Abstract: 490,836. Photographic film carriers. CASLER, H. Nov. 17, 1936, No. 31437. Void. Convention date, Nov. 22, 1935. [Class 98 (i)] A photographic dark slide comprises an outer envelope A a carrier slidable into the envelope A formed of flexible opaque material folded upon itself and containing the light sensitive element, and a shutter slide of opaque material folded to form a pocket to receive the sensitive element and certain of the leaves of the carrier when slidden into the envelope. The envelope A comprises dark paper folded to form sides 1, 2, 3, side strips being interposed between sides 1, 3 and an opening 4 being formed in the side 3. The edges are bound with tape. The carrier B is a single sheet of material folded to provide leaves 12, 13, 14. An opening 15 is provided in the leaf 12 and the sensitive element 16 is mounted on the intermediate leaf. When inserted in the envelope, the leaf 14 may be secured with glue 18, notches in the rear edge of the side 1 permitting subsequent removal of the carrier B. The shutter slide C comprises leaves 19, 20, 21, 20 and 2 being bound with tape 22 to form a pocket with opening 24. A stiff board 25 is glued between the leaves 19, 20 and has slots to receive a staple or tab 27. When the shutter is inserted in the envelope, the leaves 12, 13 of the carrier B are received in the pocket of the shutter. A strip of rubber or other yieldable material 31 extends along the upper rear edge of the envelope A to prevent movement of the sensitive element when the shutter is withdrawn. Specification 466,913 is referred to.
Patent GB-928229-A (GB)
Title: Clinching tools and units
IPC: B21D39/02
Filed: 1959-09-15
Abstract: 928,229. Seaming. BRITISH FEDERAL WELDER & MACHINE CO. Ltd., and T. F. TRIBE. Sept. 15, 1959, No. 31444/59. Class 83 (4). A clinching tool comprising a member 23 for folding over an upstanding flange 10 of a horizontal sheet metal panel 8 so that it is acutely inclined to the surface of the panel, a member 19 for pressing the folded-over flange towards said surface and means, a pneumatic ram 12, for actuating the pressure member is characterized in that the fold-over member 23 is pivoted for horizontal movement towards the upstanding flange 10, the presser member 19 is pivotally mounted by a parallelogram linkage 17, 18 for vertical movement and there is provided a mechanical connection, cam 26 on member 18 engaging follower 22 on member 23, between said members, said connection being such that during the first part of the movement of the presser member the fold-over member is actuated thereby to fold the flange and thereafter the fold-over member is withdrawn from the flange before the presser member engages the flange. To secure door panel 8 to door panel 9 the flange 10 is bent over a flange 11 on the panel 9. Each of the four straight edges 30, 31 of the panels are joined by a separate pair of tools 19, 23 and each of the curved corners 32 is joined by suitably curved tools 19, 23. Each pair of tools may be operated at a different time and with differing pressures. Specification 928,228 is referred to. Reference has been directed by the Comptroller to Specification 841,027.
Patent GB-857622-A (GB)
Title: Sequence switch
IPC: H01H43/00
Filed: 1958-10-02
Abstract: 857,622. Electric switches. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 2, 1958 [Oct. 3, 1957], No. 31499/58. Class 38 (5). [Also in Group XXXV]. The cam-shaft operating a series of camoperated switches CCB1-12 is rotated intermittently by a ratchet which is given both linear and rotary motion by a self-interrupting circular electromagnet 30. The cam-shaft is spring- returned and is held in given positions by A.C. and D.C. electromagnetically-operated pawls acting on a ratchet 32. In the embodiment described the cam-shaft is held in the second position for 4.5 minutes after which the electromagnet 30 advances the cams to their final position. A fault in the external circuit releases one or both pawls to allow the camshaft to return to a determined intermediate or its initial position.
Patent GB-489826-A (GB)
Title: Improvements in and connected with overhead or ceiling fittings for supporting flexible electric leads
IPC: H02G11/00
Filed: 1937-11-17
Abstract: 489,826. Balancing-apparatus. WADE, W. E. Nov. 17, 1937, No. 31561. [Class 78 (ii)] [Also in Groups XXXVI and XI] In a ceiling or like fitting for supporting flexible electric leads for electrical appliances, the leads 11 are adjustable by means of fixed pulleys 17 and a movable pulley 18 on an arm 25 rotatable about an upright axis on a stationary body 1, 2, to which the mains leads 14 are connected, the leads 11, 14 being coupled by contacts 13 on one part in rubbing contact with metal rings 12 on the other part. A plurality of fittings may be superposed for feeding a number of different appliances.
Patent GB-192535-A (GB)
Title: Improvements in spring mattresses
IPC: A47C23/043
Filed: 1921-11-25
Abstract: 192,535. Marshall, J. E. L. Nov. 25, 1921. Mattresses.-A box-spring mattress comprises upper and lower sets of springs E, D, between which a pocket is formed into which bed-clothes may be tucked. The frame A rests on the bedrails and supports a lower frame B on which rest the springs D, the upper ends of which are joined by a wire-work fabric F having an external frame L. On the fabric F rest the springs E, the upper and lower coils of which are connected to each other and to frames H by wire coils M. The canvas and outer cover J are carried in for a distance between the tiers of springs to form a side pocket K. In a modification, a single set of springs is employed in the body of the mattress, and two sets of shorter springs at each side, between which the outer cover is disposed to form a pocket.
Patent GB-1077692-A (GB)
Title: Imidazole derivatives
IPC: C07D233/92
Filed: 1964-08-04
Abstract: The invention comprises (1) novel compounds of formula <FORM:1077692/C2/1> in which R1 is a C1- 5 alkyl radical or a radical of formula -(CH2)nOX where X is a hydrogen atom or a C1- 6 alkanoyl group, and n is 2, 3 or 4, (2) the preparation of compounds of Formula I by reacting a compound of Formula II <FORM:1077692/C2/2> in which R2 is a C1- 5 alkyl radical or a radical of formula -(CH2)n-OX0 where X0 is a C1- 6 alkanoyl radical and n is 2-4, and R is a univalent hydrocarbon radical, with a cyanide ion in a polar organic solvent, and, if desired, submitting a product in which R2 represents a -(CH2)nOX0 radical to acid hydrolysis, and (3) (a) the process that comprises contacting a compound of Formula I in which R1 is a C1- 5 alkyl radical with a base to produce a 1-alkyl-5-nitroimidazole-2 -carboxamide, (b) the process that comprises contacting a compound of Formula I in which R1 is a -(CH2)nOH group with a catalytic amount of a strong base to form the corresponding cyclic iminoether which is acidified to produce a 1-(hydroxyalkyl)-5 -nitro-imidazole-2-carboxylic acid lactone which is reacted with ammonia in a C1- 5 alkanol to produce a 1 - hydroxyalkyl - 5 - nitroimidazole-2-carboxamide, and (c) the process that comprises contacting a compound of Formula I in which R1 is a C1- 5 alkyl radical, with an anhydrous C1- 5 alkanol in the presence of a strong base to produce a C1- 5 alkyl 1-alkyl-5 -nitroimidazole-2-carboximidate, which is treated with an aqueous mineral acid to give a C1- 5 alkyl 1 - alkyl - 5 - nitroimidazole - 2 - carboxylate, and if desired converting this ester to an amide by the process disclosed in Specification 1,077,691.  The starting material of Formula II may be prepared by a process claimed in Specification 1,077,696.
Patent GB-364711-A (GB)
Title: Improvements in the electrolytic deposition of silver
IPC: C25D3/46
Filed: 1930-10-21
Abstract: 364,711. Electrolytic deposition of silver. KODAK, Ltd., Kingsway, London. -(Assignees of Hickman, K. C. D. and Weyerts, W. J. ; Kodak Park, Rochester, New York, U.S.A.) Oct. 21, 1930, No. 31574. Convention date, Oct. 22, 1929. [Class 41.] Silver is deposited from a thiosulphate solution containing a small amount, e.g. 1 part in 1000-100,000 parts of solution, of an activating substance which includes in its chemical formula one of the groupings It is stated that the activator produces a minute deposit of silver sulphide at the cathode which forms a nucleus for the deposition of silver. Gelatine is preferably present in equal amount with the activator. In the presence of the activator large amounts of gelatine, which would otherwise be harmful, may be present. Suitable activators are thiourea, thiocarbanilide, thiosemicarbazide, ethyl, allyl or phenyl isothiocyanates, potassium dithiocyanate, phenyl thiobiazolin sulphohydrate, thioacetanilide and thioacetamide. Gelatines which contain appreciable proportions of mustard oils, thioureas, thio-imides or iso-thiocyanate; may be employed without additional activators. Natural essential oils of animal or vegetable origin containing the activating substances may likewise be employed. The electrolyte may be prepared by first dissolving 2000 parts crystalline sodium thiosulphate, 300 parts anhydrous sodium sulphite, 300 parts glacial acetic acid to make 100,000 parts of solution. This is divided into two parts one of which is saturated with silver bromide and filtered then mixed with the other part. To 100,000 parts of the product may be added 5 parts of gelatine and 5 parts of activator or 100 parts of gelatine and 50 parts of activator. A plating temperature of 10‹ C. and current density of 5 amps per sq. ft. are employed. The anode may be of graphite or a noble metal and may be in the main solution or enclosed in a porous vessel containing an inert electrolyte. The cathode may be of silver, lead, tin or graphite. The pH value of the electrolyte should be between 3À5 and 9 and is preferably 5. A solution containing 30000 parts sodium thiosulphate, 2000 parts chrome alum, 500 parts sodium bisulphate and 5 parts activator in 100,000 may be used as a photographic fixing bath and the silver electrolytically recovered therefrom. The silver content of the electrolyte may also be obtained by recovery of silver from ores, scrap or sludge. The electrolyte may be used in the refining of crude silver connected as anode. The Specification as open to inspection under Sect. 91 (3) (a) also comprises the deposition of silver from hot thiosulphate solutions without added activators. This subject-matter does not appear in the Specification as accepted.
Patent GB-189644-A (GB)
Title: Improvements in or connected with looms for weaving velvet pile carpets and other pile fabrics
IPC: D03D27/00
Filed: 1921-11-25
Abstract: 189,644. Grosvenor, J. E., and Picking, W. T. Nov. 25, 1921. Addition to 175,450. Reeds. - Comprises detail improvements in the loom for weaving velvet-pile fabrics &c. described in the parent Specification. The upper ends of the reed dents 7, Fig. 4, pass freely between rounded pins 71 secured to two plates 70 secured to and moving with the member 9 that slides laterally in the lay-cap, the pins being of less diameter than the spaces between the dents. In order that the dents may be easily removed individually, the lower ends are placed between the teeth of a comb-like member 72, Fig. 5, secured to the lay-bottom, a retaining-bar 73 engaging slots in the dents and being retained in a groove in the member 72 by means of a plate 76. The dents may rest on the lay-bottom or upon a bar 75 placed in a slot in the member 72.
Patent GB-1371721-A (GB)
Title: Process for preparation of straight chain alkane dicarboxylic acids
IPC: C07C51/31
Filed: 1972-07-07
Abstract: 1371721 Dicarboxylic acids E I DU PONT DE NEMOURS & CO 7 July 1972 [8 July 1971] 31887/72 Heading C2C In the preparation of straight-chain alkane dicarboxylic acids by contacting at least one cyclic alcohol or ketone or mixtures thereof (8-12 C) with aqueous nitric acid (40-60% by weight of the total water and nitric acid), at 75-120‹ C. at a pressure up to 7 atmos. absolute and maintaining in the liquid phase during oxidation and maintaining at 90-110‹ C for 3 to 60 minutes, an amount of urea is added to the mother liquor which is in excess of the stoichiometric amount required to deplete the nitrous acid present, the dicarboxylic acid is recovered and an amount of nitrous acid is added to the mother liquor to provide a mole ratio of nitrous acid to urea of at least 2 : 1 and a mole ratio of nitrous acid to ammonia in the mother liquor of at least 1 : 1, and then returning the mother liquor to the reactor. An example describes the preparation of 1,12-dodecanedioic acid from cyclododecanol and cyclododecanone using a soluble copper or vanadium salt as catalyst.
Patent GB-211575-A (GB)
Title: Improvements relating to non-conducting coverings for heat as applied to ships and the like
IPC: B63B3/68
Filed: 1922-11-22
Abstract: 211,575. Orde, J., and Diskett, W. H. Nov. 22, 1922. Non-conducting coverings for heat. - In non- conducting coverings for heat as applied to ships &c. of the type comprising slabs E of cork or other insulating material secured to the' surface A by retaining strips D and bolts C held by the beams B, the strips D are arranged flush with the slabs and are covered by flat cork strips G. The slabs are covered by cement F and the space J and spaces caused by the arcuate shape of the strips D are filled with granulated cork. The slabs are further secured by means of skewers.
Patent GB-175394-A (GB)
Title: Clips or fasteners for collars or other articles for personal wear
IPC: A41B3/08
Filed: 1920-11-13
Abstract: 175,394. Lambourne R. G. H. Nov. 13, 1920. Soft-collar fasteners.-In a clip for a collar or other article of personal wear comprising a rigid base to which a pair of arms are centrally hinged, the arms b are formed from spring wire bent into substantially V-shape, the two ends being bent out and sprung into engagement with holes in lugs a<2> turned up from the base a. The lugs have cam portions a<3> to give a snap action to the arms, and also provide a stop a<4>. Suitable ornaments or caps c cover the outer ends of the arms, which may be looped to engage over points a<1> on the base. In a modification, the ends of the arms may be turned inwardly to enter the holes in the lugs from the outer side.