baber/WOPTO huggingface dataset:
Patent GB-750452-A (GB)
Title: Improvements in photoelectrically controlled apparatus
IPC: H01J61/54
Filed: 1953-12-09
Abstract: 750,452. Photo-cell circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 9, 1953 [Dec. 11, 1952], No. 34290/53. Class 40 (3). [Also in Groups XXXV, XXXVI and XL (a)] A photo-electrically controlled light source comprises a photo-conductive device responsive to and controlling the light from an electric lamp. As shown a semi-conductive device 3 and light source 32 are mounted in a gas-tight housing 34 filled with helium to conduct heat from and thus increase the current rating of the semi-conductor. The semi-conductor may be a cadmium sulphide crystal of the type described in Specification 685,027. The light source 32 is a neon discharge lamp and the inside of the parabolic reflector 33 is silvered the semiconductor being situated at the focus. The light source and semi-conductor are connected in parallel with each other and in series with the supply and a resistor 37. The potential of the supply is sufficient to cause neon tube 32 to glow thus increasing the conductivity of the semiconductor which, by drawing current through resistor 37 reduces the potential across the neon which is extinguished. Thus the neon flashes continuously. In the arrangement of Fig. 2 the electrodes 48 of the discharge tube are not surrounded by their own envelope but discharge through the atmosphere (which is a mixture of argon and neon) in the main envelope. The semi-conductor is coated with a dielectric coating which prevents flash-over from the lamp electrodes. In this arrangement the semiconductor is connected in series with the lamp and with a resistor 48 paralleled with the lamp. With switch 49 open illumination of the semiconductor by an internal source will increase its conductivity, the potential drop across resistor 48 triggering the discharge through the gas which maintains the semi-conductor conducting. Thus the light source remains on providing a locking effect. When switch 49 is closed the capacitor 50 causes the discharge to occur each time it is illuminated and then to be extinguished.
Patent GB-523153-A (GB)
Title: Improvements in straight-bar knitting machines
IPC: D04B11/00
Filed: 1938-11-25
Abstract: 523,153. Knitting-machines. BLACKBURN & SONS, Ltd., G., START, H. W., and START, E. Nov. 25, 1938, No. 34312. [Class 74 (ii)] Relates to . improvements in the brake mechanism described in Specification 406,099 for preventing knitting-machine sinkers from becoming loose in the sley plates. Two gated bars A, A' cut to register with the sinkers E and channelled at C, D, are located in a recess in the. top sley bar B. The bars A, A' are pressed longitudinally by springs, to give the braking action, and the bars may act in opposite directions on the sinkers. The pressure is relieved while the sinkers are engaged by the catch bar N by the action of cams L carried by brackets M on arms J. In a modified construction only one channelled tricked bar is used.
Patent GB-1485381-A (GB)
Title: Roller assemblies
IPC: F16C35/067
Filed: 1974-09-03
Abstract: 1485381 Bearings TIMKEN CO 3 Sept 1974 [18 July 1973] 34315/73 Heading F2A A roller assembly (Fig. 1) comprises a single row tapered roller bearing mounted in the bore of an annular tyre 2 which constitutes the roller, the bearing being retained in position by an inwardly directed shoulder 12 at one end of the bore and a sleeve 6 formed on the tyre at the other end and which initially extended axially and has been deformed radially inwards. An abutment ring 5 may be included, and may carry an 0-ring seal 24 or a wiper seal. In a further embodiment (Fig. 7), the sleeve initially has a conical outer surface (Fig. 4) which after deformation becomes cylindrical so that a backup ring 17 can be fitted.
Patent GB-1351685-A (GB)
Title: Low impedance voltage divider network
IPC: H03F1/30
Filed: 1971-07-22
Abstract: 1351685 Voltage dividing apparatus R C A CORPORATION 22 July 1971 [24 July 1970] 34363/71 Heading G3X A voltage divider network produces an output which is a regulated proportion of an input voltage independent of temperature effects at semiconductor junctions. The magnitude of the output, and its stability, depend only on the ratios of resistors in the network. In the circuit shown in Fig.3, which is capable of producing at terminal 26 a voltage V o  greater than one-half of the supply voltage V s , a transistor 70 is arranged in common-emitter configuration together with a transistor 72 operated in commoncollector mode. The circuit is formed on a monolithic semi-conductor chip and also includes resistors 74, 76, 78, 80. It is shown that the output at terminal 26 is stable against variations in the base-emitter characteristic voltage of the transistors if resistors 74, 76 are of equal value. The magnitude of the output then depends solely on the relative values of resistors 78, 80. Similar circuits including additional transistors or diodes are described, enabling smaller propertions of the input voltage to be obtained, Figs. 1, 2, 4 (not shown).
Patent GB-181034-A (GB)
Title: Process and apparatus for treating petroleum or other hydro carbon oils
Filed: 1920-12-06
Abstract: 181,034. Persch, J. P. Dec. 6, 1920. Mineral and tar oils.-Hydrocarbon oils, especially those of an asphaltic nature, are subjected to the action of hot air or other gas to increase the specific gravity and diminish the viscosity and render them more suitable for use as fuel oil. The gas is injected through nozzles 15 into conduits 13 in the vessel 1 and causes circulation of the oil. The conduits 13 may pass on the outside of the vessel. Vapours may be condensed in a jacketed vessel 23. The condensate is either returned to the vessel 1 by a pipe 32 or withdrawn by a pipe 31. Light crude paraffin oil may be treated with air at 390‹ F. so as to increase the amount of gasoline obtained as distillate.
Patent GB-1395544-A (GB)
Title: Pesticidal compositions
Filed: 1972-07-25
Abstract: 1395544 Pirimicarb/Organic phosphate compositions SANDOZ LTD 25 July 1972 [30 July 1971] 34707/72 Heading A5E An insecticidal composition comprises 2- dimethylamino-5, 6-dimethylpyrimidin-4-yl-dimethylcarbamate, in association with a compound of formula I, wherein each of X and Y is oxygen or sulphur, at least one of X or Y being sulphur, and Q is -CH 2 SC 2 H 5  or -CO-NHCH 3 , e.g. 0, 0 - dimethyl - S - 2 - (ethylmercapto) - ethyl - dithiophosphate, 0, 0-dimethyl-S-2-(ethylmercapto)-ethylthiolphosphate, 0, 0-dimethyl-0-2- (ethylmercapto)-ethylthionophosphate or 0, 0 - dimethyl - S - (N - methyl - carbamoylmethyl)-dithiophospate. The compositions find application in plant protection.
Patent GB-1223923-A (GB)
Title: (-) Cis-1,2-EPOXYPROPYL)-PHOSPHONIC ACID AND ITS SALTS
Inventor: HENDLIN DAVID
IPC: C12P17/02
Filed: 1968-07-22
Abstract: 1,223,923. (-)(Cis -1,2 - epoxypropyl) - phosphonic acid. MERCK & CO. Inc. 22 July, 1968 [25 July, 1967; 30 Oct., 1967; 9 May,  1968], No. 34781/68. Headings C2A and C2C. [Also in Division A5] The invention comprises a broad spectrum antibiotic, antibiotic 833A or (-)(cis-1,2-epoxypropyl)-phosphonic acid of formula and salts thereof. Salts are formed with the alkali and alkaline earth metals, aluminium, silver and iron and with organic bases such as α-phenylethylamine, diethylamine, quinine, brucine, lysine, protamine, arginine, procaine, ethanolamine, morphine, benzylamine, ethylenediamine, N,N<SP>1</SP> - dibenzylethylenediamine, diethanolamine, piperazine, dimethylaminoethanol, 2 - amino - 2 - methyl - 1 - propanol, theophylline, N-methylglucamine and esters of amino acids; also with erythromycin, oleandomycin and novobiocin. The salts may be mono-, di- or mixed salts. Antibiotic 833A is produced by growing in an aqueous nutrient medium under aerobic conditions Streptomyces fradiae MA-2898 (ATCC 21096; NRRL B-3357), MA-2911 (ATCC 21097; NRRL B-3358), MA-2912 (ATCC 2198; NRRL B-3359), MA- 2913 (ATCC 21099; NRRL B-3360); MA- 2915 (NRRL-3417); Streptomyces viridochromogenes MA-2867 (NRRL 3414), MA-3270 (NRRL 3427), MA-2903 (NRRL 3413), MA-2916 (ATCC 21240; NRRL 3415), MA-2917 (NRRL 3416), or Streptomyces wedmorensis MA-3269 (ATCC 21239; NRRL 3426). The antibiotic is isolated from the clarified broth by adsorption on a strongly basic anion exchange resin (quaternary ammonium groups attached to a styrene divinyl benzene polymer lattice) at pH 5À0, followed by elution with aqueous or aqueous alcoholic solutions of salts such as NH 4 Cl, NaCl and CH 3 COONa. Further purification is by (A) passage through a bed of polyacrylamide gel of pore size allowing fractionation of substances having molecular weights between 200 and 2000; (B) treatment with a strongly acidic cation exchange resin of the sulphonic acid type having a styrene divinylbenzene matrix and developing with water; (C) adsorption on alumina followed by elution with aqueous or aqueous alcoholic NH 4 OH at pH 11À2; (D) dissolving in methanol adding n-butanol, evaporating off the methanol, filtering and removing the solvent. The antibiotic and its salts are used in pharmaceutical and veterinary compositions and as a general disinfectant for industrial purposes (see Division A5).
Patent GB-1317749-A (GB)
Title: Vehicle suspension mechanism
IPC: F16F9/06
Filed: 1970-07-17
Abstract: 1317749 Hydropneumatic piston-cylinder units TOKICO Ltd 17 July 1970 [17 July 1969 (2) 25 July 1969 (2)] 34783/70 Heading F2S In a hydropneumatic piston-cylinder vehicle suspension unit, the part 12 of the piston rod adjacent the piston 13 is hollow and contains gas and liquid separated by a floating piston 14, the liquid chamber being in communication with the annular chamber A surrounding the piston rod by parts 15, and the part 11 of the piston rod which projects from the cylinder 10 is of smaller diameter than the other part. There is required to be restricted communication between the chamber B and either the chamber A (Figs. 1, 2 and 6 not shown) or C. This is achieved by restricted bores, or two one-way valves 19, 20. The position of gas and liquid chambers D and C in the hollow piston rod part 12 may be reversed, and the floating piston 14 formed with a lump step (25, Fig. 2). In Fig. 5 (not shown) the cylinder carries a stub shaft.
Patent GB-764958-A (GB)
Title: New anaesthetic agents
IPC: C07D295/15
Filed: 1953-12-15
Abstract: The invention comprises salts and quaternary compounds of 1-acylamino-2-substituted naphthalenes of the formula <FORM:0764958/IV(b)/1> where X is alkyl, alkoxy or alkylthio, and the nucleus may be further substituted or may be hydrogenated in the 5:6:7:8-positions; R and R1 are alkyl, aralkyl or cycloalkyl, or one may be hydrogen, or together form a saturated ring which may contain another hetero atom.  These are made by condensing the appropriately substituted 1-naphthylamine with a chloro-acyl chloride, reacting the product with a secondary amine and converting the resulting compound into a salt or quaternary compound.  Examples show the preparation of the following: 1-(dimethylamino-acetylamino)-2-ethoxynaphthalene hydrochloride, 1 - (diethylamino - acetylamino) - 2 - ethoxynaphthalene hydrochloride, 1-(piperidino-acetylamino)-2-ethoxynaphthalene hydrochloride, 1 - (diethylamino - acetylamino) - 2 - methylthionaphthalene hydrochloride, 1-(cyclohexylamino-acetylamino)-2-methylnaphthalene hydroxchloride, 1-(benzylamino - acetylamino) - 2 - methyl - naphthalene hydroxchloride,1 (dimethylamino-acetylamino)-2-methylnaphthalene hydrochloride, 1-(diethylamino-acetylamino)-2-methylnaphthalene hydrochloride, 1 - (piperidino - acetylamino) - 2 - methylnaphthalene hydrochloride and ethylbromide, 1 - (pyrrolidino - acetylamino) - 2 - methylnaphthalene hydrochloride, 1 - (morpholino - acetylamino) - 2 - methylnaphthalene hydrochloride, 1 - (diethylamino-acetylamino) -2-methyl-5:6:7:8-tetrahydronaphthalene hydrochloride, 1-(piperidino-acetylamino)-2-methyl-5:6:7:8 - tetrahydronaphthalene hydrochloride, 1 - (N-methyl-N-(g -phenylpropyl)-amino - acetylamino)-2-methylnaphthalene hydrochloride, 1 - (piperidino - acetylamino) - 2 - propoxy - naphthalene hydrochloride, 1-(piperidino-acetylamino) - 2 - butoxynaphthalene hydrochloride, 1-(N-methyl-N-(g -phenylpropyl)-amino-acetylamino) -2-butoxynaphthalene hydrochloride, 1-(piperidino-acetylamino)-2-isobutoxy-naphthalene hydrochloride, 1 - (b  - diethylamino - propionylamino)-2-ethoxynaphthalene hydrochloride and 1-(piperidino-acetylamino)-2-ethoxy-5:6:7:8 - tetrahydronaphthalene hydrochloride.  Other products mentioned are the salts and quaternary compounds of 1-(piperidino-acetylamino) - 2:3 - dimethyl-, -2:6-dimethyl-, -2-methyl-4-bromo- and -2-methyl-5-bromonaphthalene and 1 - (b  - piperidino - butyryl - amino)-2-methyl-naphthalene, the last-named being prepared from 1-crotonylamino-2-methylnaphthalene and piperidine. 1-Chloroacetylamino-2-substituted naphthalenes where the 2-substituent is methyl, ethoxy, propoxy, butoxy, isobutyloxy or methylthio are made from the corresponding 1-amino compounds and chloroacetyl chloride. 1-(b -chloropropionylamino)-2-ethoxynaphthalene, 1-chloroacetylamino-2-methyl-5:6:7:8-tetrahydronaphthalene and 1 - chloroacetylamino - 2 - ethoxy-5:6:7:8 - tetrahydronaphthalene are made similarly.  1-Amino-2-ethoxy-5:6:7:8-tetrahydronaphthalene is made by reducing 1-amino-2-ethoxynaphthalene with sodium and amyl alcohol.
Patent GB-1395373-A (GB)
Title: Electronically driven watch with means for resetting the time indication display
IPC: G04G5/00
Filed: 1972-07-27
Abstract: 1395373 Setting electric timepieces COMPAGNIE DES MONTRES LONGINES FRANCILLON SA 27 July 1972 [27 Aug 1971] 35071/72 Heading G3T An electronically driven watch has an electronic means for setting the time display, comprising a switch having a normal running position, other positions for individually setting seconds, minute hour displays and another position to which means is connected for preventing the individual setting of a display upon rapid passage of a switch-arm through on other positions. The output of a frequency divider 2, fed from an oscillator 1, is connected to counters 3-6 having outputs to numerical or hand time displays. The setting of the time display is effected through a rotary switch 11 having a zero-potential arm 15 actuating a flip-flop assembly III and a delay circuit IV for preventing the operation of an hour display when setting a date display. The hour display is set on a movement to a position 13 from the normal position 11. Counter 31 is thus started and at a predetermined count an AND-gate 33 is opened so that divider 2 feeds pulses to an input B9 of a line selector 9 whereby the hour counter 5 is indexed once per second. The date display is set at a position 14 which changes the input C10 of a line selector 10 so that an input B10 is connected to an output D10 and pulses from divider 2 are fed to the date counter 6.  The minute display is set at position 12 at which a flip-flop 21 is reset so as to zero the seconds counter 3 and cause divider 2 to index the minute counter 4 via a line selector 8. The return of arm 15 to position 11 sets flip-flop 21 and stops the watch. The watch is then restarted by a movement to position 12, which resets flipflop 21 and changed the state of a selector 8, and a subsequent movement back to position 11 which opens AND-gates 7 and 22. The position 12 may be replaced by two positions providing for zero-setting and minute setting.
Patent GB-633928-A (GB)
Title: Improvements relating to the laying of concrete
IPC: E01C19/48
Filed: 1947-12-31
Abstract: 633,928. Road-making machines. SOC. D'ETUDES ET D'APPLICATIONS TECHNIQUES. Dec. 31, 1947, No. 35175. Convention date, Dec. 9, 1946. [Class 107] [Also in Group II] In the construction of concrete roads or similar areas, the concrete is poured on to one or more combs, each comb being formed of a series of parallel vibrating rods, which are secured to a cross bearer 2 carrying a vibrator 5, the bearer being suspended below a wheeled carriage 3 straddling the area. The height of the cross bearer is adjusted so that the rods lie in the mid-horizontal plane of the layer being deposited. Acting on the area of concrete which has been vibrated as the rods 1 are withdrawn through the concrete on movement of the carriage, are vibrating bars 7 and a vibrating straight edge 8. The concrete may be picked up by a bucket conveyor 11 from trucks running parallel to the direction of movement of the carriage and deposited into'a screw conveyor 12 feeding into a hopper 9 the walls of which are vibrated, or bottom-dumping buckets may be lifted from the trucks and traverse the hopper on an overhead rail system. A modified form of a hand-propelled machine for use in small areas is described.
Patent GB-1160660-A (GB)
Title: Apparatus for Removing Incidental Fibrous Fluff from Knitting Machines
Inventor: MUHLHAUSLER WOLFGANG
IPC: D04B35/32
Filed: 1968-07-24
Abstract: 1,160,660. Knitting - machines. FOUQUETWERK FRAUZ & PLANCK. 24 July, 1968 [26 July, 1967], No. 35207/68. Heading D1C. Nozzles 6, 6a are provided in a ring 1 positioned adjacent the needles beneath their knitting positions so as to direct jets of air upwardly to carry loose dust, fluff or lint into a housing 7 which is exhausted by a tube 8 connected to a source of suction. In addition a supply of low pressure air may be fed through the needle beds into the path of the jets to direct any fluff collected in the beds into the housing 7.
Patent GB-938637-A (GB)
Title: Process for the production of metallic catalysts from stratified silicates
IPC: B01J21/08
Filed: 1961-09-29
Abstract: Metallic catalysts are made from stratified silicates by treating barium or sodium phyllosilicate with a solution of a salt of one or more of Ni, Cu, Co, Mn, Pd, Pt, Cd or Zn in an aqueous or aqueous-organic medium and reducing the stratified metal silicate so formed.  The treatment may either be carried out at room temperature and atmospheric pressure or at superatmospheric pressure and elevated temperature.  The reactants may be agitated.  Examples are given.ALSO:Cinnamic acid methyl ester is hydrogenated in the presence of metallic catalysts made by treating barium or sodium phyllosilicate with a solution of a salt of one or more of Ni, Cu, Co, Mn, Pd, Pt, Cd or Zn in an aqueous or aqueous organic medium followed by reduction.
Patent GB-295891-A (GB)
Title: Vacuum apparatus for medical treatment
IPC: A61H9/00
Filed: 1927-12-29
Abstract: 295,891. Sinanide, O. Dec. 29, 1927. Pneumatic appliances. - A surgical suction appliance capable also of producing pulsations comprises a diaphragm pump the rubber or like diaphragm 10 of which co-operates with a conical seating 12 and is clamped between discs 9, 11 rigidly fixed to a connecting rod 7. The rod 7 is reciprocated by a crank 5 driven through reduction worm gearing 4 from an electric motor 2. Air is drawn by the pump through a pipe 16 and a spring-loaded suction valve 13 and is discharged through a valve 17 the loading spring 18 of which is adjustable by a screw 19. An adjustable air leak comprising a split screw is provided at 21. When it is desired to produce pulsations in the pipe 16 the valve 13 is held away from its seating by a screw 25 acting through a diaphragm 23 and operated by a lever 26. The operative positions of the lever 26 are indicated by notches on the frame of the apparatus engaged by a projection 26a on the lever.
Patent GB-353433-A (GB)
Abstract: 353,433. Cash registers &c. NATIONAL CASH REGISTER CO., Ltd., 225, Tottenham Court Road, London.-(National Cash Register Co.; Dayton, Ohio, U.S.A.) April 22, 1930, No. 12345. [Class 100 (iv).] Locking devices.-A cash register or similar accounting machine is provided with mechanism for locking the machine against operation after a predetermined number of operations has been completed, the mechanism comprising a disc having a notch positioned according to the number of operations required, and a locking pawl cooperating with the notch to position a locking shoulder in the path of a member fast to the machine release shaft. This locking mechanism may be disabled upon the depression of a releasing key. A toothed step-by-step counterwheel 45 is rotatable about a stud 46 and in its zero position a stop 56 projecting therefrom is pressed against a fixed abutment 57 by a spring 53. The counterwheel is rotated through one tooth at each counterclockwise movement of the usual motor clutch restraining lever 30, upon the release of that lever by a latch arm 32 fast on the usual release shaft 33, the restraining lever being pin-and-slot connected to a lever 48 pivoted on a stud 49 and provided with a feed-pawl 51. Backward rotation of the counterwheel is prevented by a retaining pawl 52 also pivoted on stud 49. After a predetermined number of operations, the counterwheel is locked by the entry of the nose 51 of a locking lever 62 into a recess 67 in a flange 60 of the wheel. The resultant clockwise rotation of the locking lever 62 moves an arm 64 thereon into the path of a shoulder 65 on an arm 66 carried by the release shaft 33, whereby the release shaft is locked. In addition, the locking of the counterwheel, through the feed-pawl 51 and lever 48, locks the restraining lever 30. To disable the locking means and zeroize the counterwheel, a key 70 is depressed. The key is guided by the release shaft 33 and a stud 71 and is held in depressed position, against the action of a return spring 72, by the engagement of a projection 86 on the key within a notch 87 in the frame 47. A pin 73 projecting from the key engages a cam face 74 on the retaining pawl 52, which is thereby rotated into inoperative position and through the engagement of a stud thereon with a hook 76 on the locking lever 62, rotates the latter to normal position. The counterwheel being thus freed is zeroized by the spring 53. The key 70 is released upon the first subsequent operation of the machine by a cam face 91 on the arm 66, that engages a stud 90 on the key and rocks the projection 86 out of the notch 87.
Patent GB-382804-A (GB)
Title: An improved closure for collapsible containers
IPC: B65D47/26
Filed: 1931-12-22
Abstract: 382,804. Closures for collapsable containers. BELSEY, S., 6, Clarendon Mansions, East Street, Brighton, and CASSIN, P., 19, Eastcheap, London. Dec. 22, 1931, No. 35423. [Class 125 (iii).] A closure for a collapsable container consists of a disc e pivoted at f on a lug d on the neck b of the container a and having lugs h, g<1>, the former being claw-shaped and engaging an inclined groove i on the neck b and the latter, by abutting the neck, limiting the angular displacement of the disc.
Patent GB-816180-A (GB)
Title: Improvements in or relating to longitudinally divided angle handpiece heads more particularly for dental purposes
IPC: A61C1/18
Filed: 1956-11-20
Abstract: 816,180. Dental handpieces. KALTENBACH, A., and HOFFMEISTER, E. Nov. 20, 1956 [Jan. 20, 1956], No. 35423/56. Class 81 (2). In an angle handpiece the tool holding sleeve 7 is mounted in a bearing 12, at its upper end, and the projecting tool 4 is centred in a second bearing 14. The tool is retained by the usual slotted lever arrangement. The sleeve 7 is located axially by the bearing 14, at one end, and by a radial lip 13 at the other, while, at the same time, it is centred by the tool shank itself. Both bearings may be of sapphire. Reference has been directed by the Comptroller to Specification 790,737.