baber/WOPTO huggingface dataset:
Patent GB-594979-A (GB)
Title: Improvements in and relating to electrical circuit breakers
IPC: H01H71/50
Filed: 1945-03-02
Abstract: 594,979. Automatic circuit-breakers. SOUTH WALES SWITCHGEAR, Ltd., and FARRER, S. March 2, 1945, No. 5252. [Class 38(v)] A circuit-breaker is closed by a mechanism wherein the energy of a resilient energy storing device is so transmitted through a rectilinearly moving member, a link and a shaft, that the torque required to reverse the shaft increases as the shaft rotates towards the position in which the switch is closed. Fig. 1 shows the mechanism in the open position of the circuit-breaker, which is actuated by rotation of the shaft 2. In this position springs 14 have been compressed by the counter-clockwise rotation of a manually - operated spindle 15 through links 16, 18, and a block 6 carrying tubes 11 on guides 12, a latch 19 engaging a pin 7 on the block 6. To close the circuitbreaker a spindle 21 is rotated manually or by remote control to cause a cam 22 to release the latch 19 from the pin 7. The block 6 is then forced upwards by the springs 14 and causes a link 5 pivoted at 7 to rotate a lever arm 3 secured to the shaft 2, which actuates the moving contacts through linkwork, part of which is shown in Fig. 3 at 25. Fig. 3 shows two sets of springs, one loaded and one unloaded, operating a common shaft 2, channels 9 guiding rollers 8 on the blocks 6. Buffer devices 23 stop the blocks 6 if the circuit-breaker closes easily, as on a small current. To prevent slow opening of the circuit-breaker by means of the spindle 15, a spring clutch, Fig. 6, comprising a spring 34 and a lever 33 may be fitted to an extension 2b of one end of the shaft 2. Recesses 31 in the lever 33 co-operate with projections 30 on the hub 3a of the adjacent arm 3, and the lever 33 trips the circuitbreaker through levers 36, 37 and an underset toggle mechanism. As an alternative to the construction shown in Fig. 6, the arm 3 may be loosely mounted on the shaft 2 and coupled to it through lost motion by a pin 40 and an abutment 39a on an arm 39, secured to the shaft 2, as shown in Fig. 7.
Patent GB-718533-A (GB)
Title: Improvements relating to the production of textile fabrics of reduced infra-red transmission
IPC: D06Q1/04
Filed: 1952-02-28
Abstract: A composition for application to textile fabrics to reduce the infra-red transmission thereof comprises a leafing metallic pigment dispersed in an organic solvent containing an alkyd plasticized etherified aminoplast resin, in which the ratio of resin to metallic powder is between 1:1 and 1:2 and in which the ratio of the aminoplast to alkyd in the resin is between 9:1 and 1:1.  The etherified aminoplast resins used are produced by the condensation of melamine or urea with an aldehyde, preferably formaldehyde, in the presence of an aliphatic primary alcohol of 4 to 8 carbon atoms.  The alkyds used are esters of polyhydric alcohols with mixtures of monobasic fatty acids and polybasic acids, the reactants specified being glycerine, pentaerythritol, polyallyl alcohol, glycols; phthalic and maleic acids or anhydrides; fatty acids of tung, linseed, dehydrated castor, sunflower, soya-bean and coconut oils. The non-drying type of alkyd of medium oil length is preferred.  In examples 1 to 14 are described storable printing bases, containing little or no water, pigment, e.g. aluminium or bronze powder, resin and a solvent such as xylene with or without butanol, pine oil and turpentine, which can be rapidly dispersed to give water-in-oil emulsions of the desired consistency.  In examples 15 to 20 are described printing pastes obtained by emulsifying the printing bases with an emulsifying agent in the form of a water-in-oil emulsion of aqueous ammonium sulphate and a solution of a styrenated alkyd copolymer in mineral spirits and xylene.  A plasticizer in the form of a 40 per cent. aqueous dispersion of butadiene acrylonitrile copolymer stabilized by fatty acid soaps may be added to the inner disperse aqueous phase in amount not exceeding 67 per cent. by weight of the total resins solids.
Patent GB-291149-A (GB)
Title: Improvements in means for drying garments and the like
IPC: D06F73/00
Filed: 1927-02-24
Abstract: 291,149. Matthews & Yates, Ltd., and Yates, S. Feb. 24, 1927. Drying in the open.-Garment driers for use in laundries and dyeing and cleaning works comprise a perforate frame a mounted upon a casing having a steam-heated coil and a fan e driven by an electric motor supported in a cup-shaped member which shields the motor from the heat of the coils. The garment is suspended over the frame from a support b and is dried by the hot air directed upwardly through it by the fan. The top of the cup-shaped member may be perforated to ventilate the motor.
Patent GB-735952-A (GB)
Title: Mechanism for controlling fuel to a gas turbine engine
IPC: H02P23/00
Filed: 1953-02-25
Abstract: 735,952. Automatic speed control systems. BENDIX AVIATION CORPORATION. Feb. 25, 1953 [April 11, 1952], No. 5312/53. Class 38 (4). In Fig. 1, to maintain the speed of a gas turbine 10 at a desired value, a tachometer generator 34 produces an alternating voltage the frequency of which is proportional to speed. This alternating voltage is applied to thermionic valve circuits 36, 38 which respectively produce a corresponding direct voltage and add a component dependent on rate of change of speed. The resultant voltage is compared by a vibratory contact type comparator 28 with the direct voltage from a potentiometer 30 manually operated by a throttle lever 32. Any difference between the actual engine speed and speed selected by lever 32 thus results in a voltage from comparator 28 which is applied to an amplifier 26 controlling a reversible servomotor 24 adjusting a valve 64 to correct engine speed by controlling the supply from a fuel pump 14. During acceleration of the engine up to a speed selected by lever 32 the maximum fuel flow permitted is predetermined at each value of engine speed by a series of pre-set potentiometers 1<SP>11</SP>-50<SP>11</SP> which are selected by a servomotor 42 operating a. selector switch 246. Servomotor 42, which is controlled by an amplifier and which operates a follow-up potentiometer 44 and a rate feedback generator (not shown) takes up a position corresponding to engine speed as determined by the voltage output of circuit 36. The selected potentiometer then determines the position of a follow-up servomotor 52 adjusting a stop 84 limiting the maximum permissible opening of valve 64. Acceleration is thus controlled to avoid stall.
Patent GB-689245-A (GB)
Title: Improvements in or relating to coal-getting machines
IPC: E21C27/02
Filed: 1950-03-03
Abstract: 689.245. Mining machines. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI. GEB., ZAPP, P. E., and VOLKE, J. Feb. 26, 1951 [March 3, 1950], No. 5402/50. Class 68(i) In a coal cutting and loading machine, a jib chain cutter projecting forwards of the machine casing makes a cut parallel to the coal face, and a cantilever cutter bar extends transversely from the jib towards the coal face. As shown the machine may move in either direction along the side of a conveyer 9, and a motor 10 drives two jib cutters 13 and 14 through a system of gears designed to drive the leading cutter at the greater speed. Cutter bars 25 are mounted on shafts carrying two of the jib chain wheels, and planing knife cutters 27 make a horizontal cut along the bottom of the seam and also carry vertical knife blades 28, the cut coal being directed by plows 2 up a ramp 3 on to the conveyer. Further knife blades 5 and 6 are mounted on the machine casing to clear coal from the roof and floor of the cut.
Patent GB-373089-A (GB)
Title: Improvements in or relating to manoeuvre signalling devices for vehicles
IPC: B60Q1/34
Filed: 1932-02-24
Abstract: 373,089. Road - traffic signals on vehicles. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Feb. 24, 1932, No. 5463. Convention date, Feb. 27, 1931. [Class 118 (ii).] A manceuvresignalling device of the type employing a narrow pivoted arm a which is widened towards its free end is provided at the lower edge of its front side with a downwardly-projecting sheet metal strip c, which is stated to facilitate the dropping back of the arm when it is exposed to wind pressure due to the motion of the vehicle.
Patent GB-1535824-A (GB)
Title: Avalanche photodetector biassing system
IPC: H04B10/69
Filed: 1976-02-11
Abstract: The arrangement operates in such a manner that the diode is biased by a constant current in the region of a lower optical received power level but by a constant voltage in the region of a higher level, the current being limited in order to prevent overloading. The arrangement operates reliably over a wide temperature range without needing accurate temperature compensation. <IMAGE>
Patent GB-548972-A (GB)
Title: Improvements in or relating to electrical heating apparatus
IPC: H05B3/48
Filed: 1941-04-28
Abstract: 548,972. Electric heating elements. BERRY, A. F. April 28, 1941, No. 5485. [Class 39 (iii)] In an electric heating element of the type in which a conductor 1 is embedded in granulated insulation 3 in a metal sheath 2, the conductor is in ribbon form and is corrugated. The sheath 2 may be made elliptical in cross-section after filling. The corrugated ribbon may be kept in alignment during filling of the sheath by a thread or wire 4 which subsequently will burn out or be withdrawn. The granulated insulation may be mixed with oil. When used in a hot plate, Fig. 5, the central portion of the conductor may be corrugated as at 1, while the outer portion is helically coiled in the usual way. Specifications 388,429, 497,831, 497,924, [both in Group XXXV], 502,559, 529,211 and 532,391 are referred to.
Patent GB-290388-A (GB)
Title: Improvements in or relating to two stroke internal combustion engines
IPC: F02B25/18
Filed: 1927-03-01
Abstract: 290,388. Jerram, A. E. March 1, 1927. Balancing moving parts by weights. - In engines using crank case compression the crank chamber is spherical in shape, the clearance therein being reduced by shaping the exterior of the bearing blocks a<5> and the crank discs B to fill the chamber. The lower part a<3> of the chamber is separate from the upper, the blocks a<5> being gripped between the two parts. The space within the slipper piston D when at its lower dead centre is filled by blocks carried on the crank case. The crank discs are steel forgings each with three recesses to receive alloy filling of a weight designed to balance the piston and connecting rod.
Patent GB-365379-A (GB)
Title: Method of making expansion members for pipe conduits
IPC: B21C37/15
Filed: 1931-02-24
Abstract: 365,379. Expansion joints. RÍMER, R., 94, Nlipa St. Zeromski, Lodz, Poland. Feb. 24, 1931, No. 5795. [Class 99 (i).] Expansion joints for pipes are formed from flanged annular sections a, a<1>, the flanges meeting at an angle and abutting against each other with a narrow edge i, the grooves inside and outside being filled with welding metal either as shown in Fig. 1 or by welding a ring k in the outer groove as shown in Fig. 4. The outer flanges are bent inwards and the inner flanges' outwards. Reinforcing depressions g may be formed in the flanges.
Patent GB-470691-A (GB)
Title: Improvements relating to rotary fluid meters
IPC: G01F3/06
Filed: 1937-02-26
Abstract: 470,691. Rotary meters; stuffing - box substitutes. TRIGGS, W. W. (Pittsburgh Equitable Meter Co.) Feb. 26, 1937, No. 5795. [Classes 110 (ii) and 122 (v)] A rotor 15 with sliding vanes 26 connected in pairs, comprises upper and lower plates 17, 19, and an outer wall 3. The rotor is keyed to a vertical shaft 12 which drives recording or indicating mechanism 102 through gears 79, 92, and a one-way clutch mechanism 97. The vanes have connecting webs 38 provided with slots to accommodate the shaft 12. Rollers 49, 51 are mounted on pins on the blades and roll on tracks 52, 53 machined on the cylinder head 17. Further rollers 68 are mounted on the vanes and make contact with a cam surface 63. An abutment wall 5 is screwed into position between inlet and outlet ports 3, 4. The top of the rotor has depressions sloping from the centre outwards to holes 72 through which may pass any sediment in the liquid. Further holes 73 are provided in the rotor bottom leading to a sump 9. The rotor and vanes are suspended from the top bearing 66 so that clearances are arranged between the rotor and abutment 5, and between the rotor and the bottom bore 14. Shims 81<1> are provided to adjust the axial clearances. A ratchet plate 93 is pressed on to the end of the shaft 91 and carries two pawls 93a, Fig. 15, pivoted on pins 94, under pressure of a spring. These pawls co-operate with a dished ratchet disc 97 placed in a depression of a gear 92. In a modification, the vanes rest on slides instead of rollers. Fig. 10 shows a meter with a lower bearing 109 which is protected by washer 120 from sediment which might otherwise pass from the meter to the bearing. A spring 124 presses a gland 115 into light rubbing contact with the washers 120. The rotor top plate 131 may be removed by taking out securing screws and screwing them into further threaded holes until they abut the head 17 and force the plate 131 upwards. Washers 120 may be made of materials manufactured under the Registered Trade Marks " Micarta " and " Bakelite."
Patent GB-306512-A (GB)
Title: Improved manufacture of oxygenated organic compounds
IPC: C07C29/151
Filed: 1929-02-21
Abstract: 306,512. Soc. l'Air Liquide, Soc. Anon. pour I'Etude et l'Exploitation des ProcÚdÚs G. Claude, (Assignees of Soc. Chimiques de la Grande. Paroisse Azote et Produits Chimiques). Feb. 22, 1928, [Convention date]. Right to Patent relinquished. Orygenated organic compounds; alcohols.- In the catalytic manufacture of oxygenated organic compounds such as alcohols by a cyclic process, an inert gas such as nitrogen or an excess of one of the reagents is introduced before the reaction into a gas mixture containing hydrogen and oxides of carbon in the stoichiometric proportions determined by the reaction. After separating the reaction products, the whole of the residual gases is mixed with fresh gases containing the reagents in the stoichiometric proportions, and the mixture is recirculated. Suitably, the whole or part of the initial mixture, is passed through an air burner, thus introducing nitrogen, or over a suitable catalyst in the presence of steam, thus enriching the mixture in hydrogen. Specification 313.467 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that with a gas mixture of suitable composition, the manufacture of oxygenated organic compounds may be combined with that of ammonia. As shown, a purified compressed gas mixture, suitable CO + N + 7H, enters at A and passes in part through an apparatus H in which it is treated with steam in the presence of a suitable catalyst; the apparatus H need not be worked continuously, The gases then pass through a catalyst chamber C in which methanol is produced. The methanol is condensed in a cooler D and the residual gases pass through a catalyst chamber C' in which ammonia is produced. The ammonia is removed in a cooler D<1> and the residual gases are returned by a pump P. This subject-matter does not appear in the Specification as accepted.
Patent GB-991592-A (GB)
Title: Tetracyclic aromatic diene ketones of use as intermediates in synthesis of steroids and d-homo-steroids
Inventor: HUGHES GORDON ALAN
IPC: C07J75/00
Filed: 1960-02-19
Abstract: The invention comprises a compound of formula <FORM:0991592/C2/1> wherein each R is H or Alkyl, R1 is a saturated or unsaturated aliphatic hydrocarbon radical and E is a predominantly o/p directing and activating substituent in electrophilic aromatic substitution and specifically those compounds wherein R is H and (1) E is methoxy and R1 is methyl, ethyl, isopropyl or cetyl; (2) E is hydroxy and R1 is methyl (a) or ethyl; (3) E is acetoxy and R1 is methyl.  These compounds (except (3) which is made by acetylating 2(a)) are prepared by a process for preparing generally a compound of formula <FORM:0991592/C2/2> by cyclodehydration of a compound of formula <FORM:0991592/C2/3> wherein the phenyl group has a free o-position activated by substituent E (which is e.g. hydroxy, acyloxy, alkoxy, amino, acylamino, monoalkylamino or dialkylamino), R is H or alkyl, T is either an ethylenic bond or H2 on the C adjacent to CR2 and O = on the C in the D-ring, R1 is a saturated or unsaturated aliphatic hydrocarbon radical and Q is CH2 or CH2CH2.  An exemplified preparation of a D-homosteroid is that in which E is 3-methoxy, R is H, T is H2 and O = and R1 is methyl.  Starting materials.-2 - cetyl - 2 - (61 - m -methoxyphenyl - 31 - oxo) hexyl - 1,3 - a cyclopentanedione was prepared from 6-m-methoxyphenylhex - 1 - en - 3 - one and 2 - cetylcyclo pentane-1,3-dione; the latter by heating 2-cetylcyclopentane - 1,3,5 - trione semicarbazone with KOH.  The cetylcyclopentanetrione was prepared from conc.  HCl and ethyl 4-cetyl - 2,3,5 - trioxocyclopentyl glyoxlyate which was in turn made by condensing methyl n-heptadecyl ketone with diethyl oxalate.
Patent GB-433951-A (GB)
Title: Improvements in or relating to domestic ovens or the like
IPC: F24C15/32
Filed: 1934-02-23
Abstract: 433,951. Domestic ovens. DARBY, H. G., 39, Broad Street, Birmingham. Feb. 23, 1934, No. 5937. Addition to 409,994, [Group XIII]. [Class 126] In a modification of the invention described in the parent Specification as applied to an externallyheated domestic oven or the like, the oven flue space is baffled by projections 16 pressed from the wall 9 of the jacket (or it may be from the oven wall) and arranged in staggered or zig-zag formation so that the flow of heating gases is subdivided into a number of sinuous streams. Insulation 13 is packed between the jacket and an outer casing and above the top flue are mounted warming chambers 10, also insulated. According to the Provisional Specification the baffles may be in the form of corrugations.
Patent GB-1479835-A (GB)
Title: Water-insoluble monoazo dyestuffs
IPC: C08L67/00
Filed: 1975-02-12
Abstract: The novel disperse dyestuffs are free of sulpho groups. They correspond to the formula: <IMAGE> In this formula, E is the radical of a coupling component of the acylacetarylamide, pyrazolone, aminopyrazole, phenol, 2,6-dihydroxypyridine or arylamine series. The novel disperse dyestuffs are prepared by     1) diazotising 2,6-dicyano-3,5-dimethylaniline and 2) coupling the resulting diazo compound with a coupling component of the acylacetarylamide, pyrazolone, aminopyrazole, phenol, 2,6-dihydroxypyridine or arylamine series, which is free of sulpho groups.   The novel disperse dyestuffs are suitable for dyeing or printing synthetic textiles.
Patent GB-758036-A (GB)
Title: Embossing thermoplastic sheet
Inventor: MONCRIEF LESLIE JOHN
IPC: B29C51/10
Filed: 1954-03-01
Abstract: 758,036. Embossing. BRITISH CELANESE, Ltd. Feb. 28, 1955 [March . 1, 1954], No. 5947/54. Class 100 (2). A process for embossing surface patterns on a sheet of thermoplastic material consists of heating the sheet to soften it and then urging it into contact with an air-permeable fibrous web, carrying the desired pattern, by creating a vacuum on the other side of the web, allowing the sheet to cool and then stripping it off the web. The web 15 is a patterned fabric, e.g. lace, and is supported on a sheet of wire mesh 14 resting on a perforated platform 11 in a vacuum cup 10. The thermoplastic sheet 17 is stretched over the mouth of the cup and sealed thereagainst by a clamping ring 16. A radiant heater 19 is mounted on rails so as to be movable into and out of position over the mouth of the cup 10. When the sheet 17 is sufficiently softened the heater is moved away and the tap 22 at the bottom of the cup opened to connect the cup with an evacuated chamber. The atmospheric pressure on the upper side of the sheet then forces it into intimate contact with the fabric 15 so that the pattern is transferred to the sheet 17. When the sheet is cooled it is stripped off and the process repeated with another thermoplastic sheet. The cooling may be assisted, e.g. by air blast if necessary and extra pressure may be applied on the upper side of the sheet if desired. Examples are given in which a thermoplastic sheet of cellulose acetate, dimethyl phthalate and triphenyl phosphate is embossed by contact with webs consisting of lace having a floral pattern or of surgical lint having on the upper side a fluffy brushed surface. In the first case the lace pattern is transferred to the plastic sheet and in the second case a matt surface is produced. The web may alternatively consist of a crepe fabric, velvet, satin, knitted, woven or other fabrics.
Patent GB-995077-A (GB)
Title: Air filter assembly with removable filter elements
IPC: F24F13/28
Filed: 1964-02-13
Abstract: 995,077. Air filters. FARR CO. Feb. 13, 1964 [April 29, 1963], No. 6044/64. Heading B1T. An air. filter assembly comprises a housing 10 having an inlet 12 and an outlet 13, at least one pair of substantially parallel rails 21, 30 being vertically spaced and extending across the inlet 12, a sealing member 29 mounted on and extending the length of each rail, at least one filter element 11 having a frame 40 and a filtering medium 42, the frame 40 having a pair of vertically spaced and laterally extending U-shaped channels 50, 51 opening in a direction away from each other for accepting the rails 21, 30 and the corresponding sealing means 29, the lower channel 51 engaging the upper extremity of the lower rail 30 of the pair for supporting a filter element 11 on the rail 30, and a door 16 in the housing 10 at one end of the rails for permitting removal and replacement of a filter element on the rails. There is thus provided a filter assembly in which each filter element is removable laterally from the housing without requiring access through the inlet or outlet. A sealing member 52, Fig. 2 (not shown) extends vertically along the lateral extremity of each frame 40 for sealably engaging either the housing 10 or an adjacent frame 40. The filter assembly is thus sealed against the inadvertent passage of unfiltered air. As shown in Fig. 1, the rails are secured by brackets 26 to the ends of the housing 10 and to one or more intermediate columns 27 extending vertically between the top and bottom of the housing. A preferred form of filter element 11 is shown in Fig. 3 and has a frame 40 with a wire basket 41 for supporting a disposable preformed filtering medium 42. Filtering medium 42 comprises a porous filter material formed into a plurality of wedge-shaped pockets and secured to a cardboard frame 43. The wire basket 41 has a plurality of wires 44 formed as wedge-shaped supports for the pockets of the filtering medium 42. The cardboard frame 43 is sealably confined between the wire basket 41 and a flange 45 of the frame 40 so that any air passing through the frame 40 must pass through the filtering medium 42. A plurality of tension springs 48 extending from the frame 40 to the wire basket 41 to releasably secure these together. By releasing the springs 48, the wire basket 41 may be removed from the frame 40 and the filtering medium 42 removed and replaced.