baber/WOPTO huggingface dataset:
Patent GB-360134-A (GB)
Title: Improvements in or relating to endless belt conveyors
IPC: B65G21/14
Filed: 1930-09-26
Abstract: 360,134. Endless belt conveyers. SCOTT, F., 20, Oak Terrace, Cockton Hill, Bishop Auckland, and BAINBRIDGE, F., 6, Highcliffe Terrace, Ferryhill, both in Co. Durham. Sept. 26, 1930, No. 28808. [Class 78 (i).]. In conveyers of the type in which the belt G is supported by an expanding frame E by which its effective length can be varied, one end of the frame is attached to a housing B into which the belt, &c. can be withdrawn to facilitate the transporting of the device. The rear drum A<2> of a pair of drums A<1>, A<3> mounted in the housing is driven by a compressed air or electric motor C, Fig. 4, carried on a wall of the housing, and its shaft carries also a haulage drum D. Either the drum A2 or the drum D may be coupled to the shaft by a friction clutch c<1>. The drum A<1> is driven by the drum A<2> through a band a<1>, Fig. 1..The end e of a pair of lazytongs E is fixed to the housing B, and the other end e<1> is attached to a support F carrying a drum F<1>. Rollers e2 are attached at intervals to the bottom joints of the lazy tongs, and smaller rollers e<3> are mounted on the pivots at the top and bottom. The belt G passes around the drums A<1>, A2, over the rollers e<3>, around the drum F<1>, and back to the drums A<1>, A<2>. A rope f attached to the support F is passed around wheels F<2> attached to a prop H and is secured to the drum D. If the drum D is clutched to its shaft and the motor started, the rope f will be wound on the drum and the conveyer extended. When the desired extension has been attained, the drum D is declutched, and after removing the pin g, Fig. 6, which attaches the belt G to a lug g<1> on the band a<1>, the drum A<2> is connected to the shaft, and the conveyer is ready for use. The drums A<1>, A<2> may be replaced by a single drum to which the belt is clipped for purposes of contraction, and the lazytongs may be actuated by screws or links. Telescopic tubes may be used instead of the lazy tongs.
Patent GB-424022-A (GB)
Title: Improvements in and relating to arrangements employing electric discharge devices for connecting a load to a supply
IPC: H02M7/44
Filed: 1933-10-18
Abstract: 424,022. Converting ; switching systems for consuming devices. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Langmuir, I. ; 1176, Stratford Road, Schenectady, New York, U.S.A.) Oct. 18, 1933, No. 28848. Convention date, Oct. 22, 1932. [Classes 38 (ii) and 38 (iv)] [See also Group XL] In an arrangement in which a load containing inductance is supplied from a D.C. source through a valve, means are provided for absorbing the transient voltages produced when the current is suddenly interrupted in the valve, comprising a resistance having a negative impedance voltage-characteristic connected in parallel with the load. In the form shown in Fig. 1 a load 12, 13 is supplied from a D.C. supply 10 through a valve 11 provided with means for applying a positive or negative bias to its grid. Commutation of current through the valve 11 is obtained by means of a condenser 16 and a grid controlled auxiliary valve 17. Connected in parallel with the load is a resistance 21 having a negative impedance voltagecharacteristic in series with a rectifier 22 which prevents current flow during normal operation. When commutation takes place the surge due to the inductance in the load circuit passes through the resistance 21. Fig. 2 shows a parallel type inverter having auxiliary valves 38, 39 connected in series with the main valves 36, 37 and a resistance 41 having a negative impedance voltage-characteristic connected in parallel with the transformer primary 34. The valves 37, 38 cause the maximum voltage of the winding 34 to be retained on the condenser 40 until the moment it is desired to commutate. The resistance 41 forms a short-circuit path for the current surge which occurs at commutation. Specification 292,110, [Class 38 (ii)], is referred to. Reference has been directed by the Comptroller to U.S.A. Specification 1,823,684.
Patent GB-629082-A (GB)
Title: Means for suspending or supporting drawers from tables and other articles or parts
IPC: A47B88/00
Filed: 1947-10-30
Abstract: 629,082. Furniture drawers. H. & S. (HOLDINGS), Ltd., (formerly Harris & Sheldon, Ltd.), SANKEY & SONS, Ltd., J., and BUTLER, H. G. Oct. 30, 1947, No. 28950. [Classes 52 (i) and 52 (iii)] A drawer housing 4 has lugs 9 on its upper face which can engage flanges 2 beneath the top of a desk, table, or other article to suspend the housing. The lower face of the housing may have slots 12 to receive the lugs of the next lower housing. Bolts 16 are preferably used to support the rear ends and can be accessibly accommodated in dished end walls 5.
Patent GB-1076175-A (GB)
Title: Shaped articles of polymeric material incorporating fibres
IPC: D01F6/88
Filed: 1964-07-15
Abstract: Mixed spun fibres composed of a polymer substance A having a melting point lower than 170 DEG  C. and a polymer substance B having a melting point higher than 170 DEG  C., which is compatible and spinnable with said substance A, are blended with a further quantity of substance A and the mixture is shaped into articles, e.g. films or sheets, at a temperature above the melting point of substance A but lower than the melting point of substance B. Preferred substances A are polyethylene, polypropylene and polystyrene. Suitable substances B include polyamides, polyesters, polyureas, polyurethanes, polyacrylonitrile and polyvinyl alcohol; nylon 6, nylon 66 and polyethylene terephthalate are exemplified. The mixed spun fibres are preferably stretched and cut up into short lengths before being blended with further amounts of substance A.  Shaping can be effected by means of an injection or extruder moulder.
Patent GB-1486969-A (GB)
Title: Bis-(0-1-alkylthio-ethylimino)-n-methyl-carbamic acid)-n,n'-sulphides
IPC: A01N47/24
Filed: 1975-07-10
Abstract: 1486969 Pesticidal application of Biscarbamic acid sulphides CIBA-GEIGY AG 10 July 1975 [11 July 1974 27 May 1975] 29080/75 Heading ASE [Also in Division C2] Pesticidal compositions comprise as active ingredient compounds of the formula R-S-C (CH 3 ) = N-O-CO-N(CH 3 )-S-CO-O-N = C (CH 3 )-S-R, R being a C 1-5  alkyl radical. The compositions may contain other insecticides, e.g. organic phosphorus compounds, nitrophenols and derivatives thereof, formamidines, ureas pyrethrin-like derivatives, carbamates or chlorinated hydrocarbons.
Patent GB-1006623-A (GB)
Title: Chlorine purification
IPC: C01B7/075
Filed: 1963-07-23
Abstract: Liquid chlorine containing non-volatile impurities is purified by contacting it with a bed of hydrated silica or hydrated calcium silicate having an oil absorption (rub-out-method) of at least 100 gm. (preferably 100-200 gm.) per 100 gm. of material.  The impurities are, e.g. iron, copper, hexachloroethane.  The hydrated silica may have a surface area 75-400 sq. m. per gm., have a 0.03 micron particle size or a - 10 to +150 U.S. Sieve Series Mesh. For example, liquid chlorine from storage tank 1 is passed through cooler (heat exchanger) 2 to purification column 3 containing finely-divided hydrated silica 6 supported by steel mesh 7. Purified, liquid chlorine passes out through Rotameter 12 (Registered Trade Mark) and throttle valve 13.  The pressure drop across the bed may be 1-35 p.s.i.g.
Patent GB-192188-A (GB)
Title: Improvements in garters
IPC: A41F11/16
Filed: 1921-11-03
Abstract: 192,188. Heath, F. G. Nov. 3, 1921. Garters.-In garters of the kind comprising a coiled spring with an inextensible flexible member within the coils to limit extension and having metal end members whereby the ends of the garter are detachably secured together, the ends of the coiled spring 1 are provided with sheet metal members 7 which are thrust into the coils and are provided each with a lip 6 which is bent down to engage the end coil. The members are formed from blanks which are slotted and folded to grip the ends of the inextensible tape 2, the lips 6 being formed by doubling over one end of each blank. The other ends of the blanks are formed with means for detachably securing them together. One is provided with a circular embossed and cranked portion 9 adapted to engage a keyhole slot 10, 11 in the other.
Patent GB-331445-A (GB)
Title: Improvements relating to the construction of cycle handle bars and the like
IPC: B62K21/12
Filed: 1929-09-27
Abstract: 331,445. Tovey, W. Sept. 27, 1929. Joints formed by welding. -In a method of connecting two tubular members together, such as a cycle handle-bar to its stem, lugs are formed integral with one of the tubes for the other tube to seat upon, the joint being completed by welding &c. As shown in Figs. 3-5, the stem 1 is slit longitudinally and transversely, and the parts freed by the slits are bent out tangentially to form lugs 4, the outer edges of which are of arcuate form to receive the handle-bar tube. Filling-plates 6, 7, Fig. 6, are welded in position before the application of the handle-bar tube. In a modification, the stem is formed by bending a sheet-metal blank shaped and slit to provide at the top the seating lugs for the handle-bar tube.
Patent GB-430633-A (GB)
Title: Improvements relating to variable-speed gears for cycles
IPC: B62M11/06
Filed: 1934-10-12
Abstract: 430,633. Change speed gearing for cycles. RAYNER, G. F., 5, Chancery Lane, London.-(Dansk Cyklevaerk Grand Aktieselskabet ; Norre Aaby, Denmark) Oct. 12, 1934, No. 29291. [Class 80 (ii)] A change-speed gear in a housing 20 secured to the frame of a cycle comprises a combined gear and dog-clutch member 16 slidably splined on the crank spindle 7 and biassed by a spring 18 into clutch engagement at 21 with a gear 15 loose on the spindle 7 and rigid with the usual transmitting sprocket 17. T h e member 16 carries at least one gear 16<a> adapted to be moved by a suitable level and against the spring 18 into mesh with a gear 12<a> fast on a lay shaft 8 which transmits a reduced speed drive to the gear 15 through a constant-mesh gear 13. An additional pair 16<b>, 12<b> may be provided to yield a third speed.
Patent GB-458949-A (GB)
Title: Improvements in toe clips for cycle pedals
IPC: B62M3/08
Filed: 1935-10-24
Abstract: 458,949. Toe-clips for cycle pedals. CAMILLIS, L., c/o Cyclo Gear Co., Ltd., Potters Hill, Aston, Birmingham. Oct. 24, 1935, No. 29324. [Class 136 (ii)] A toe-clip for cycle pedals, of the type formed by bending a single length of wire, comprises lower and upper pairs of limbs 1, 2, the upper diverging limbs 2 being connected at the rear by a transverse stay 4, and at the front by a transverse stay 7, preferably of sheet-metal. The stay 4 is so bent as to form loops 5, adapted to receive a strap for holding the entrance to the clip open to the desired degree. The ends of the lower limbs 1 are free, to permit adjustment of their width apart, and are provided with eyes 6 for the reception of screws or bolts by which the clip is secured to the pedal plate. In a modification, the ends of the limbs 1 are screw-threaded for attachment to the pedal plate.
Patent GB-660345-A (GB)
Title: Improvements in free spool fishing reels
Inventor: ANDERSSON DONALD ASSAR VILHELM
IPC: A01K89/015
Filed: 1949-11-17
Abstract: 660,345. Clutches. BLOHM, M. P. Nov. 17, 1949, No. 29439/49. Class 80 (ii) [Also in Group VI] The shaft 27 secured to the crank handle 9 of a fishing reel is connected to a gear wheel 7 by a clutch comprising a sleeve 19 which rotates on the shaft 27 and carries on its inner end two radially projecting heads 20 formed with channels 21 in which slide spring urged pins 22. The inner end of the shaft 27 carries two radially projecting wings 29 which, on rotating the shaft to wind in the fishing line, push the pins 22 against the action of their springs 23 so that the free ends of the pins abut the interior stepped surface 32 of a sleeve 31 secured to the gear wheel 7. At line casting the gear wheel 7 rotates with the spool but its rotation is not transmitted to the shaft 27 since the pins 22 are disengaged from the stepped surface 32 by their springs 23. The latter may be dispensed with and in such case the stepped surface 32 pushes the pins out of engagement at casting. Friction rings 25, 26 are placed between the heads 20 and one end of the clutch housing and between a nut 24 and the other end of the housing.
Patent GB-941705-A (GB)
Title: Improvements in or relating to switching arrangements
IPC: H04N3/15
Filed: 1959-08-28
Abstract: <PICT:0941705/C3/1> <PICT:0941705/C3/2> A voltage-sensitive luminescent material suitable for use in the display matrix of Fig. 7 consists of ZnS activated with 1000 parts per million of either Mn or Mn and Cl.  Alternatively, material which extinguishes with applied voltage may be used.  The display may be used for television, potential distributions corresponding to different lines being fed at the line frequency to the vertical conductors b through a line storage device 15.  The horizontal conductors a  are pulsed in turn at the line frequency. A switching network for this purpose comprises serially-connected equal resistors 1k biased by a D.C. source 2, the junctions between these resistors being connected to earth through resistors 3k of high value and voltage dependent impedances 4k. If a saw-tooth voltage Es of appropriate amplitude is applied between earth and one end of the series 1k, the voltage across each combination 3k, 4k changes sign in turn repeatedly.  Hence, by means of differentiating networks 5k, 6k, negative pulses may be obtained in turn at the terminals 12k.  In the pulse counter of Fig. 4, the differentiating networks are eliminated and the presence of a voltage between two adjacent output terminals 10 is detected by a luminescent strip 34.  The strip may be provided with digits, the particular digit illuminated being a function of the instantaneous amplitude of the input Es.  Specification 845,622 is referred to.
Patent GB-813935-A (GB)
Title: Improvements in or relating to ringing arrangements for telephone systems
Inventor: MUNDY RICHARD CHARLES NORRIS
IPC: H04M19/02
Filed: 1956-09-27
Abstract: 813,935. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Aug. 30, 1957 [Sept. 27, 1956], No. 29477/56. Class 40 (4). In a system in which subscribers' lines are transformer -coupled to exchange equipment (as in many electronic systems), ringing current is generated by an arrangement comprising for each line two junction transistors arranged to conduct alternately in response to a control signal, their respective emitter-collector currents providing the ringing current. Fig. 1 shows a ringing-current generator at the exchange end of a subscriber's line 1, 2, in which earth is normally connected to lead 3 so that transistor TR1 is conductive. For ringing, a multivibrator or other means applies earth alternately to leads 3 and 4, causing transistors TR1 and TR2 to conduct alternately and apply an alternating signal to the line. In an arrangement for generating ringing current at a substation, Fig. 2, a small-amplitude audio-frequency signal is sent from the exchange over the subscriber's line 5, 6, received at transformer T2, rectified and smoothed, the resultant D.C. causing transistor TR3 to conduct which in turn starts the operation of a multivibrator comprising transistors TR4 and TR5 which draw current through the bell coils L5 and L6 alternately. The circuit C2, T2 may be arranged to resonate at the frequency of the signal sent from the exchangeeach subscriber's circuit on a party-line being tuned to respond to a different frequency.
Patent GB-928900-A (GB)
Title: Cabinet door hinge
IPC: E05D7/00
Filed: 1961-08-16
Abstract: 928,900. Hinges. LEC REFRIGERATION Ltd., and E. J. TURNBULL. Jan. 8, 1962 [Aug. 16, 1961], No. 29495/61. Drawings to Specification. Class 65 (2). In a cabinet having a door adapted to be hinged alternatively at either side of the door opening the hinge means comprises a pair of brackets fixed to the cabinet adjacent the two upper corners, respectively, of the door opening, a movable bracket adapted to be attached to the cabinet adjacent either of the lower corners of the door opening, two hinge pins secured one to the movable bracket and the other to the fixed bracket which is located on the same side of the door opening as the movable bracket, and four apertures in the door adjacent to the respective corners thereof in which the hinge pins can be rotatably received, the procedure for repositioning the hinge axis at the other side of the door opening comprising the steps of releasing the upper hinge pin from the fixed bracket at the one side of the opening and securing it to the fixed bracket at the other side, releasing the movable bracket from the cabinet and attaching it at the other side of the opening, and engaging the hinge pins in the apertures at the other side of the door. Plastic bushings are fitted in the pair of apertures engaged by the hinge pins and flexible sealing grommets are fitted in the other pair of apertures, the bushings and grommets being interchanged when the hinge axis is re-positioned. The movable bracket is releasably attached to the cabinet by means of screws, further screws being used to seal the screw-holes provided at the other side of the opening.
Patent GB-1278739-A (GB)
Title: Anilino salicylic acid derivatives
Inventor: SHEN TSUNG-YING
IPC: A61P3/08
Filed: 1970-06-18
Abstract: 1278739 Anilino-salicylic acid derivatives MERCK & CO Inc 18 June 1970 [25 June 1969 20 April 1970] 29541/70 Heading C2C Novel compounds of Formula I in which R is hydrogen and X is fluorine, alkylthio, alkylsulfinyl, alkylsulfonyl, dialkylamino or alkylamino, or R is alkyl and X is hydrogen, alkyl, hydroxy, alkoxy, acyloxy, halogen, haloalkyl, nitro, amino, alkylamino, dialkylamino, acylamino, mercapto, alkylthio, alkylsulfinyl, alkylsulfonyl, sulfamoyl, aminoalkyl, alkylaminoalkyl, hydroxyalkyl, alkoxyalkyl, mercaptoalkyl alkylmercaptoalkyl, cyano, carboxy, carboalkoxy, carbamoyl, aryl, aralkyl, aryloxy or aralkoxy; R 1  is hydroxy, amino, alkoxy, alkylamino, dialkylamino, dialkylaminoalkylamino, dialkylaminoalkoxy, hydroxyalkoxy, polyhydroxyalkoxy, alkoxyalkoxy, phenylalkoxy, phenoxy, alkoxyphenoxy, dialkylaminophenoxy, halophenoxy, alkanoylaminophenoxy, anilino, alkanoylaminoalkoxy, hydrazino, hydroxylamino, N- morpholino, hydroxyalkylamino or a radical derived from a naturally occurring amino acid and attached at the N atom; R 2  is hydrogen, acyl, alkyl or alkoxy carbonyl; and R 3  is hydrogen, halogen, haloalkyl, alkyl, cycloalkyl or alkoxy, the anilino portion of the substituted anilino carboxylic acid is connected to the 4 or 5 position of the salicylic acid residue the said alkyl and alkoxy radicals and residues contain not more than five carbon atoms and the said alkanoyl radicals and residues contain not more than six carbon atoms; or a non-toxic pharmaceutically acceptable salt thereof, are prepared by carboxylating a compound of Formula IIa for example, with an alkali metal carbonate and carbon dioxide, and optionally introducing R 1  and R 2  where there are other than OH or H and/or converting one X group into another and/or salt formation. Amino-phenols of Formula VI are prepared by demethylation of the corresponding methyl ether obtained by introduction of R into a compound of formula IV prepared by reaction of a substituted aniline and a halophenol methyl ether. Pharmaceutical compositions in conventional forms for oral, parenteral, rectal or topical administration having anti - inflammatory activity comprise an above novel compound and a carrier or diluent therefor.
Patent GB-640731-A (GB)
Title: Manufacture of high acetyl cellulose acetate films
IPC: C08L1/12
Filed: 1947-11-05
Abstract: High acetyl cellulose acetate cine film base stock is produced by a continuous process which comprises dissolving a cellulose acetate of acetyl content 42.5 per cent to 44 per cent in a solvent mixture composed of 65 to 90 per cent by weight of methylene chloride, 15 to 5 per cent of methyl or ethyl alcohol, and 20 to 5 per cent of propylene chloride, continuously casting the solution in the form of a film on a moving film-forming surface at a temperature of 50 DEG to 90 DEG  F., removing a part of the solvent from the film, removing the film from the film-forming surface while the film is in the form of a strippable coagulated sheet 50 to 125 per cent thicker than it is to become when completely cured, and removing residual solvent from the film. The cellulose acetate preferably has an acetyl content of between 43 and 43.5 per cent.  The ratio of cellulose acetate to solvent mixture may be approximately 1 to 5 or 1 to 8.  In one example cellulose acetate is dissolved in a mixture of methylene chloride and methyl alcohol, and propylene chloride and triphenyl phosphate then added.  The solution at 80 DEG  F. is fed into the hopper of a film casting machine from which it is applied to the surface of a rotating casting wheel at a temperature of 75 DEG  F. After six minutes the film is stripped from the casting surface, cured to evaporate residual solvent, and wound into a roll.  The cellulose acetate may have a viscosity characteristic of 3,000-10,000 centipoises as determined at 25 DEG  C. in a 10 per cent solution using a mixture of methylene chloride (90 per cent) and methyl alcohol (10 per cent) as solvent.  Specification 640,730 is referred to.
Patent GB-320024-A (GB)
Title: Improvements in or relating to multiplex communication systems
IPC: H04L5/06
Filed: 1929-09-30
Abstract: 320,024. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Whitaker, J. N.). Sept. 29, 1928, [Convention date]. Harmonic telegraphs.-In a single channel multiplex communication system for wireless or line telegraphy, a plurality of separate tone frequencies is supplied to a transmitter, the strength of impulses caused by superimposition of single cycles of the various tone frequencies being limited so as not to exceed that ot a single cycle. A plurality of circuits A, B, C, Fig. 1, are adapted for producing tone frequencies by means of tuning forks 1, the oscillations impressed on valve 4 being rectified and modified by valves 6 and 9 to produce a wave form as in Fig. 4. The tone circuits are connected through keys 11 or other modulating apparatus to a limiter 13, which passes superimposed pulses to the pulse amplifier 15, 16, with the same strength as a single pulse. High frequency currents are generated by a crystal-controlled oscillator 24, associated with one or more amplifiers 19, from which they are transferred to the aerial, the carrier being modulated by the impulses from the amplifier 15, 16, through resistances 21, 22, in the grid circuit of amplifier 19. The arrangement. is such that during the intervals between impulses valve 19 has a prohibitive negative bias from resistance 21, the voltage drop across 22, due to impulses in 15, 16, acting in opposition and reducing the negative grid potential of 19. No energy is thus radiated between tone frequency impulses. The receiver, Fig. 3 has filter circuits Fa, Fb. Fc, each accepting the tone frequency of the corresponding circuit. Specification 320,023 is referred to.