baber/WOPTO huggingface dataset:
Patent GB-1351549-A (GB)
Title: 1,3-dhiydro-3-hydroxy-5-phenyl-2h-1,4-benzodiazepin-2-one sub stituted diamino acetate esters and their acid salts
IPC: A61K31/55
Filed: 1972-03-22
Abstract: 1351549 Benzodiazepines AMERICAN HOME PRODUCTS CORP 22 March 1972 [30 March 1971 4 Feb 1972] 13315/72 Heading C2C Compounds of the general formula (R<SP>1</SP> = lower alkyl, aryl-(lower alkyl); R<SP>2</SP> = di- (lower alkyl)amino-(lower alkyl), wherein the alkyl groups may be concatenated with or without a heteroatom which, if nitrogen, may be lower alkyl substituted, diaryl-(lower alkyl), amino-(lower alkyl) or diarylamino-(lower alkyl) wherein the aryl groups may be linked to form a tricyclic ring system with the nitrogen atom to which they are attached; or R<SP>1</SP> and R<SP>2</SP> may be concatenated to form one of the radicals wherein R<SP>4</SP> = lower alkyl, aryl lower hydroxyalkyl, aryl-(lower alkyl), lower alkoxy-(lower alkyl); R<SP>5</SP> = lower alkylamino, di-(lower alkyl) amino, piperidino; n = 3-5; m = 1, 2; r = 2, 3; s, t = 0-6 but s + t = 3-6 ; R<SP>3</SP> = H, lower alkyl, aryl-(lower alkyl), lower alkoxy-(lower alkyl); X = halogen, CN, CF 3 , NO 2 , lower alkylthio; Y = H, halogen, CF 3 , NO 2 , lower alkylthio) and their salts are prepared by reacting a compound of the formula (Z = Cl, Br, I) with R<SP>1</SP>R<SP>2</SP>NH, optionally followed by salt formation. The "lower" groups contain 1-6 carbon atoms. The above compounds are central nervous system depressants, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1343075-A (GB)
Title: Method of and apparatsu for filtering liquids
IPC: B01D/
Filed: 1971-05-05
Abstract: 1343075 Filter apparatus ECODYNE CORP 5 May 1971 [12 May 1970] 13347/71 Heading B1D A self-backwashing filter for liquids comprises a chamber 10 containing a particulate filter bed 20 and divided by the bed and by partition 16 into an inlet chamber 18, an outlet chamber 22 and a backwash storage chamber 14. Liquid to be filtered enters via line 30, head box 32, line 36 and line 38 and is delivered to service after a downward flow filtration via line 48 without passing it through any further portion of the filter apparatus and without raising it to the level of the backwash storage compartment having valve 50. The backwash chamber 14 is filled by closing valve 50 and opening valve 54 in line 52. The filter is periodically automatically backwashed when the pressure difference across the bed reaches a predetermined limit, as sensed by control pipe 55 and probe 57. The flow of liquid through the bed is ceased by opening by-pass valve 42 and the inlet chamber is drained via line 44 by opening valve 46. A reverse flow of air is then passed through the bed from blower 60 via line 62, followed by an upward flow of backwash liquid.
Patent GB-133759-A (GB)
IPC: C01B31/12
Abstract: 133,759. Mumford, R. W. Oct. 14, 1918. Carbon.-A vegetable carbon having great decolorizing power and great rapidity of action, and capable also of removing finely-divided suspended materials from solutions or liquids, is prepared by slowly heating an intimate mixture of moist vegetable matter, colloid material, and a mineral spacing agent, so as first to dry the material and set and colloid, and thereafter slowly to char it, the temperature finally being raised to above 800‹ C. The mineral spacing agent is selected so that during the charring process gas is slowly evolved, and this has the effect of clearing the faces of the charred material, the object being to obtain a carbon of open cellular structure corresponding more or less closely to that of the vegetable matter originally taken. As vegetable matter, the following examples are given :-sawdust, peat, lignite, wood pulp, peat moss, bark, maize cobs, residue's of alcohol distillation, and brown coal; as colloid material, solutions of gelatine, potato or rice flour, corn flour, starch and gluten, and inorganic colloidal material such as clay, hydrated colloidal silicates, oxides and phosphates, for example, gelatinous tricalcium phosphate ; as a minerai spacing agent, dolomite, manganese dioxide, and a mixture of magnesium carbonate and phosphatic rock. In an example of the process, the vegetable matter is comminuted, washed with hot water, mixed with gelatinous tricalcium phosphate, or boiled with potato flour or starch so as to form a paste, and finally mixed with finely powdered dolomite; the mass is then heated in a retort which can be slowly rotated; the temperature remains for some time at 100‹ C. until all the water is expelled and the colloid is set. after which it rises slowly until at 250‹ C. the mass is completely charred; the temperature is then raised to decompose the dolomite which evolves carbon dioxide gas, and this continues until a temperature of 800-900‹ C. is reached; the material is then dumped into water with the exclusion of air, and the product freed from mineral matters either by sedimentation or centrifuging, or by treatment with an acid; the product is dried, and, if desired, ground. In order to control the temperature during the charring process, it is convenient to use a reverberatory furnace heated on the surface combustion principle, the material to be charred being spread in relatively thin layers in metal trays which are placed on the side or hearth of the furnace. Usually it is detrimental to the product to conduct the charring in the presence of steam or products of combustion from any other source, since these cause the carbon to waste away; but in the case of material of less open texture such as lignite or brown coal, the introduction of steam is in certain cases advantageous. After use, the carbon can be revivified by treatment with hydrochloric acid alone, or by washing first with hot water, then with caustic soda solution, again with hot water, and finally with hydrochloric acid; after drying, the product is ready for re-use, and heating in retorts is unnecessary.
Patent GB-437660-A (GB)
Title: Improvements in or relating to gas or vapour electric discharge devices
IPC: H02M1/04
Filed: 1934-05-03
Abstract: 437,660. Converting. ELECTRICAL EQUIPMENT & CARBON CO., Ltd., 107, New Oxford Street, London.-(Elin Akt.- Ges. f³r Elektrische Industrie; 1, Volksgartenstrasse, Vienna) May 3, 1934, No. 13435. [Class 38 (ii)] The grid control potential for a discharge device is obtained by distorting an alternating grid potential during its negative half cycle by valve action of the grid, this distortion being varied to obtain regulation. When an anode (e.g. the anode associated with grid g1) is conductive the condenser C1 is short circuited due to grid current flowing. When conduction ceases the condenser first charges from the grid transformer t1 through the resistance R1 applying a negative bias to the grid and then commences to discharge, the period of charge and discharge being determined by the size of condenser and value of the resistance R1. Since the anode cannot conduct until the potential on the condenser falls approximately to zero, the moment of ignition can be varied by adjustment of the resistance condenser combination. In a modification a common resistance in the connection between the centre tap of the grid transformer and the cathode is used. To obtain protection against short circuit a resistance, normally short circuited, is switched into the grid circuit.
Patent GB-290614-A (GB)
IPC: D06F45/00
Filed: 1928-05-07
Abstract: 290,614. Continental Wringer-Cie. May 17, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Wringers, attaching to boards, tables, &c.-To enable the wringer to be secured to vertical or horizontal supports, for example a wash-tub y, Fig. 3, table-edge x, Fig. 2, respectively, the clamps c, d are pivoted on a pin i which connects two lugs g on a bolt h passing through a hole in the wringer frame a. By rotating the bolt h, which is secured in its adjusted position by a nut, the clamps are swung from the position of Fig. 2 to that of Fig. 3, whilst by swinging the clamps about the pivot pin i the wringer may be secured either inside or outside the tub. The pivot i may be dispensed with and the clamps rocked about a horizontal axis only.
Patent GB-549725-A (GB)
Title: Improvements in or relating to sewing and like machines
IPC: D05B47/00
Filed: 1941-10-20
Abstract: 549,725. Sewing-machines. BALLAMY, L. M., and SHEEPSHANKS, R. H. Oct. 20, 1941. No. 13490. [Class 112] The needle thread for a loop stitch machine is tensioned by devices carried by a plate 26 mounted on the needle bar 10; they include a flexible lead-in tube 16 clamped in blocks 21, a leaf spring 28 pressed on to a plate 24 and a cylinder 36 made of glass about which the thread is wrapped for at least one complete turn. The pressure of the leaf spring is adjusted by a screw 34. In a multiple-needle machine. the tension devices for all the threads are carried by one plate 26. Similar devices may be applied to looper threads. In a modification, the tension devices may comprise a plurality of studs or other projections round which the thread is wrapped in a suitable pattern; they may be mounted on a fixed support instead of on the needle-bar. A check spring may be provided to act on the thread adjacent to the upper end of the tube 16. Specification 546,893 is referred to.
Patent GB-135031-A (GB)
IPC: H01T13/46
Abstract: 135,031. Kahl, A. R., (Radtke, A. A., and Leich, A. M.). Jan. 13, 1919. Sparking-plugs.-An auxiliary spark-gap for the purpose of promoting the discharge between the main terminals is formed between one of the electrodes 2, 7, and a serrated or pointed member 10 which is insulated from both of the electrodes.
Patent GB-1498251-A (GB)
Title: Siloxane-polyalkylene block copolymers and their use in the production of polyurethane foams
IPC: C08G77/46
Filed: 1975-04-02
Abstract: 1498251 Polysiloxanes containing cyano and polyether or hydride groups UNION CARBIDE CORP 2 April 1975 [3 April 1974] 13538/75 Headings C3R and C3T  Novel cyano-polyoxyalkylene-polysiloxanes have the average formula  wherein R is a C 1-10  alkyl group, R is a C 2-12  alkylene group, E is an organic-capped polyoxyalkylene block of which at least 75 wt. per cent is oxyethylene units, q is 0 or 1, x is 0 or up to 20, y is 2-20, and z is 2-30, the polyoxyalkylene blocks being 50-85% of the total weight of the polymer. These polymers differ from those of Specification 1,443,560 in the higher proportion of oxyethylene groups and lower values of x and y. The compounds in which x is 0-10 and E is H, precursors of certain of the above, are also novel. The polyoxyalkylene-polysiloxanes may be prepared by reaction of hydroxy- or alkenyl-terminated nitriles and/or polyethers with the hydrogen polysiloxanes having H in place of the polyether blocks and/or the cyanoalkyl groups. In Examples 1-6 and 25 hydrogen siloxanes are prepared of Formula I in which E is H and x, y and z are 5-8, 4-8 and 6-8 respectively; in Examples 7-12 and 25 these are added to allyl polyethers or in Examples 13-24 and 26 the products are used as foam stabilizers for foams derived from 100 p.b.w. of diethylene glycol-trimethylolpropane-adipate (1 : 0À2 : 1 molar ratio), 1À9 p.b.w. N-ethyl morpholine, 0À3 p.b.w. hexadecyl dimethylamine and either 45À2 p.b.w. TD1 and 3À6 p.b.w. H 2 O or 59À4 p.b.w. TD1 and 5 p.b.w. H 2 O, optionally with 7 p.b.w. tri-chloroethyl phosphate; in Examples 27-39 they are blended in amounts of 35 p.b.w. with 35 p.b.w. of a sodium sulphonate, 15 p.b.w. of tall oil and 15 p.b.w. hexamethylene glycol or with 15À6 p.b.w. of a polyethylene oxide, 10À4 p.b.w. of tall oil and 21 p.b.w. of the glycol, and these blends are used as foam stabilizers in similar foams.
Patent GB-1058545-A (GB)
Title: Production of dialkyl esters of bis-(n-carbamoylarylamino)-benzenedicarboxylic acids
Inventor: BOCK GUSTAV
IPC: C07D295/215
Filed: 1964-04-02
Abstract: Cis-trans quinacridone is obtained by heating at 170 DEG  C. in an o-dichlorobenzene medium and in presence of p-toluenesulphonic acid, N,N1-bis-diethylcarbamyl - 2,5 - dianilinoterephthalic acid dimethyl ester.ALSO:The invention comprises bis-(N-carbamyarylamino) benzene dicarboxylic acid dialkyl esters in which the arylamino groups, which are ortho to the ester groups, may be substituted by a nitro group or one or more alkyl or alkoxy groups or halogen atoms and the carbamyl radicals may be mono- or di-alkyl or aryl substituted; the compounds are made by heating esters of the bis-isourea ethers of the corresponding dihydroxy benzene dicarboxylic acids at 70-200 DEG  C., e.g. as in the following reaction scheme <FORM:1058545/C2/1> <FORM:1058545/C2/2> in which R is C1- 4 alkyl, R1 is H o up to two nitro groups, halogen atoms or C1- 4 alkyl or alkoxy groups, R2 and R3 are C1- 4 alkyl, phenyl or naphthyl, or NR2R3 constitutes a 5- to 7-membered ring, while rings A and B are phenyl or naphthyl or are members of an aromatic-heterocyclic system, e.g. 9-methyl carbazyl. The starting materials (e.g. I) are obtained by reacting esters of hydroxy acids with arylimino carbamyl halides and are stated to be novel.  Exemplified products are derivatives of bis-(arylamino) isophthalic acid (as in II), or of 2,5-bis-(arylamino) terephthalic acid.
Patent GB-311230-A (GB)
Title: Pocket view-taking cinematographic camera with spring motor
IPC: G03B1/12
Filed: 1929-05-01
Abstract: 311,230. PathÚ Cinema, Anciens Etablissements PathÚ FrÞres. May 7, 1928, [Convention date]. Kinematograph apparatus. - The film holder and a spring motor are arranged edge to edge in a kinematograph camera. to decrease the bulk of the apparatus and enable it to be carried in a coat pocket. As shown, parallel plates 1, 2, within a flat case 6, carry a spring barrel 5 and a film holder 4. The barrel 5 drives a pinion 8 through wheels 7, 7a, the spindle of the pinion 8 being provided with a disc 10, Fig. 7, having a crank pin carrying a bell-crank lever 14 formed with a feed claw 16 and connected by a spring 22 to a fixed pin 21. A sliding shutter 28 is also operated by the disc 10 through a link 23 and arm 24. A wheel 8<a> drives through a wheel 9 a speed regulator comprising masses 31 which are urged centrifugally against a brake drum 33. The barrel 5, film holder 4, shutter, and feed claw, are mounted between the plates 1, 2, but the wheels 7<a> &e. are between the plate 1 and the case, the space not occupied by the wheels being occupied by stamped recesses housing a winding key 11 and a view finder 12. A control knob 18 is also housed in a recess and carries on its shaft an abutment 20, which, when the knob is pushed in, engages a plate 17 on the shaft of the wheel 8 and stops the mechanism. As shown, the film holder is above the barrel 5; other dispositions of these members are described in the Specification.
Patent GB-494429-A (GB)
Title: Improvements relating to vehicle headlamps
IPC: B60Q1/14
Filed: 1937-05-14
Abstract: 494,429. Vehicle lamps. HIGGINS, A. G., and LONDON PASSENGER TRANSPORT BOARD. May 14, 1937, No. 13614. [Classes 75 (ii) and 75 (iv)] In a vehicle headlamp of the kind having means for adjusting the position of the bulb with relation to the focus of the reflector and also means for dipping the reflector, the adapter 6 for the bulb 5 is carried by a sleeve 9 which is mounted in a frusto-spherical bearing 10 and has a rearward extension 13 formed with a housing for a ball 14, the latter being eccentrically mounted on a screwed carrier 15 which is movable axially of the lamp casing 43 by gearing 16, 17, to effect focusing adjustment of the bulb 5. The gear 17 is mounted on a hollow shaft 18 formed at its lower end with a square orifice for the reception of a key inserted through an opening in the casing 43. Rotation of the sleeve 9 during adjustment is prevented by ears 23 which bear on the upper part of a bracket 20 integral with the central boss 11 carrying the reflector 12. A spring 37, mounted on the fixed housing 22, co-operates with recesses on the lower end of the shaft 18 to lock the focus adjustment in any one of a number of different positions. The reflector 12 and the complete focus-adjusting means are carried by the boss 11 which is mounted, by means of arms 26, to dip about horizontal pivots 27, this movement being effected by a slotted quadrant 32 in which engages a stud 34 secured to a web 21 depending from the bracket 20. The quadrant 32 is fast on a hollow shaft 35 which is in alignment with the shaft 18 when the latter is in the undipped position and is provided at its outer end with a key slot 36 by which it can be turned. A spring 41 holds the dipping mechanism in any desired position. Both focusing and dipping adjustments may be remotely controlled from a point within reach of the driver of the vehicle.
Patent GB-163315-A (GB)
Title: Improved cooling arrangements for dynamo-electric machines
IPC: H02K9/22
Filed: 1921-05-13
Abstract: 163,315. Metropolitan - Vickers Electrical Co., Ltd., (Assignees of Kirkpatrick, T. P.). May 17, 1920, [Convention date]. Armatures and field magnets, cooling; coils.- In dynamo-electric machines operating in a vacuum, an annular chamber is provided in the stator frame for the circulation of cooling fluid and non-magnetic heat-conducting end-plates are secured on the frame, the end coils of the stator being bent to lie adjacent to the end-plates and a body of electrically insulating heat-conducting material filling the space between the coils and end-plates. Figs. 2 and 3 illustrate a motor for actuating a gyroscope (not shown). The stator frame 11 is provided with a chamber 17 through which water circulates from inlet and outlet chambers 19, 20. The stator winding 21 is bent in proximity to the end-plates 22, and the spaces are filled with a vegetable resin, varnish or other insulating heat-conducting material 23.
Patent GB-354208-A (GB)
Title: Improvements in or relating to universal drive couplings
IPC: F16D3/79
Filed: 1930-05-03
Abstract: 354,208. F l e x i b l e transmissions; sound-recording apparatus. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Elmer, L. A.; 28, Ward Place, Montclair, New Jersey, U.S.A.) May 3, 1930, No. 13668. Convention date, May 4, 1929. [Class 80 (ii).] In driving - arrangements comprising two universal joints separated by a rigid shaft, the transmission of transverse vibration, such as may arise from inaccuracies in worm-gear teeth, is avoided by providing a massive extension to the intermediate shaft 20 designed that the centre of percussion of the shaft and joint-members rigid therewith with respect to the centre of one joint lies substantiallv at the centre of the other. As applied to driving the turntable 17 of a phonographic recording-machine, a motor 14 drives a shaft 15 through worm-gearing and a damping-device 16 adapted to eliminate torsional vibration and static friction, and axially-flexible universal joint rings 4 are clamped to yokes 8 on the shaft 15, intermediate shaft 7, and turntable shaft 18, a ring 13, of the calculated mass, being secured by spacing-members 12 to the upper yoke of the bottom joint. The shaft 7 is preferably an aluminium tube, the cast yokes 8 also being light and, as far as possible, of circular transverse section. Each ring 4 is built up of a thin spring- steel lamina cemented between two or more rubberized fabric rings.
Patent GB-493090-A (GB)
Title: Improvements in controlling means for gas turbine plants of the continuous combustion type
Filed: 1937-05-14
Abstract: 493,090. Elastic - fluid turbines. TENNANT, W. J. (Aktiebolaget Milo) May 14, 1937, No. 13717. [Class 110 (iii)] A gas turbine plant of the continuous combustion type provided with a plurality of turbines or turbine stages and with a plurality of heating means coupled in series is controlled by one or more controlling de. vices, adapted to operate in the whole range of load and to intervene at all variations of load, provided to control two or more heat supplying means one of which supplies heat to one or more heating means coupled in series before one or more heating means supplied by the other. The high pressure turbine 2, Fig. 1, is supplied with working fluid from the combustion chamber 13 which is supplied with fuel by the pump 8. The exhaust gases from this turbine are reheated before use in the low pressure turbine 3 in the combustion chamber 19 supplied by the fuel pump 9. The pump 8 is controlled by the governor 22, and the pump 9 by a thermostat 24 in the exhaust conduit of turbine 3. The governor 22 may control a byepass valve 26 on the low pressure compressor 5 to vary the air supply to the combustion chamber 13. A non-return valve 11a and a disconnectable coupling 10 allow the low pressure compressor 5 to be uncoupled. A marine gas turbine plant, Fig. 4, shows a series of turbines 49, 50, 51 and 52 supplied with working fluid from combustion chambers 63, 64, 65 and 66 supplied with fuel from pumps 55, 56, 57 and 58 controlled by a lever 68. This lever may also control the output of the compressor turbine 52 by means of valve 70 as well as the low pressure compressor 67 which may be put out of operation by valves 71, 73. The invention is not limited to turbines in series and arrangements in which turbines in parallel supplied by a single heating means in series with another heating means are described. The heating means may be of any type and a gas generator in which fuel is burnt on a stoker is also described. Where there is more than one controlling device they may either work independently or may be interconnected. When a thermostat is used to control the second and succeeding heating means, it may be so adjusted that the inlet or outlet temperatures of the turbines supplied by the heating means are kept constant or controlled in any desired manner.
Patent GB-582608-A (GB)
Title: Improvements in or relating to telescopic shock absorbers
IPC: B64C25/60
Filed: 1944-07-19
Abstract: 582,608. Shock - absorbers. GODFREY & PARTNERS, Ltd., SIR G., MILES AIRCRAFT, Ltd., and BURGER, F. E. July 19, 1944, No. 13809. [Class 108 (iii)] A shock-absorber particularly suitable for aircraft, comprises a chamber 11 containing air under pressure from the closed end of a piston rod 20, which slides in glands 21, 22 and has an annular piston 28 provided with restrictive means for the flow thereby of a fluid, preferably oil, contained in an annular chamber 13, and a bye-pass 46 controlled by a valve 49 which may be a needle valve or a non-return valve, which adjusts the damping during the stroke of the piston. The piston 28 has an annular groove formed by flanges 34, 36 containing holes which may be of different sizes and which are closed by a loosely-fitting split piston-ring located in the groove. Alternatively, the flanges may be unperforated and the ring unsplit but provided with grooves on both sides.