baber/WOPTO huggingface dataset:
Patent GB-414228-A (GB)
Title: Improvements in thermionic valves
IPC: H01J21/20
Filed: 1933-09-07
Abstract: 414,228. Thermionic valves. WISE, R. M., 307, East 4th Street, Emporium, Pennsylvania, U.S.A. Sept. 7, 1933, No. 24788. Convention date, Sept. 10, 1932. [Class 39 (i).] A valve comprises two sets of amplifying elements, the grid structure of each of which comprises a plurality of co-extensive foraminous members. In one form, filaments 12 are supported on hooks 24 secured to posts which are mounted on an upper insulating plate, (Fig. 2, not shown), and are welded to posts sealed in the pinch which carry a corresponding lower insulating plate 16. Grids 13, each comprising inner and outer windings 31 and 32 are secured to rods 33, 34, 35, 36, which are mounted in the plates 16. The anodes 14 are provided with ears 45 clinched in slots in the plates 16, and each is connected to one of two posts which support the plates from the pinch. The filaments may be connected in series or in parallel or may be independent or may be replaced by an indirectly heated cathode. A method of assembling the electrodes on the pinch is described.
Patent GB-152857-A (GB)
Title: Improvements in or relating to asphaltic pavements
IPC: C08L95/00
Filed: 1919-10-10
Abstract: 152,857. Alexander, A. E., (Foreign Willite Road Construction Co.). Oct. 10, 1919. Compositions containing bituminous and siliceous materials.-Sand, soil, stone, clay, or other finely-divided earthy matter is mixed preferably in vacuo with a mineral asphaltic binder, other than tar, which has been previously treated under heat with soluble mineral salts, other than chlorides, such as sulphates or selenates of aluminium, chromium, manganese, iron, indium, gallium, sodium, potassium, rubidium, caesium, ammonium, silver, gold, platinum or thallium, which temper or harden the binder. The binder is employed to the extent of 8-17 per cent of the mass. The product is used for road paving or as a base upon which the ordinary wearing-course may be laid, or the foundation and wearing courses may have the same composition and may be laid separately and connected whilst the composition of one course is in a highly heated condition so that the two will be united.
Patent GB-336712-A (GB)
Title: A new system of the automatic illumination of aerodromes, motor-ways and high-ways
IPC: B64F1/20
Filed: 1929-08-15
Abstract: 336,712. Sanchez, S. Feb. 28, 1929, [Convention date]. Controlling consuming devices.-A system for the automatic illumination of aerodromes, motor-ways and highways incorporates a photoelectric cell B, Fig. 1, adapted to close the lighting circuit F through relays C, D, E, when activated by light rays. In Fig. 2, the photoelectric cell is located inside the neon beacon triangle A, of an aerodrome, and is activated by a flare or bengal light from an aeroplane desiring to land, thus switching on the lamps G which are arranged to give parallel beams as shown. Neon angle tubes H are arranged horizontally at each corner at a height of 5 metres above ground level to give the pilot his approximate height when landing. In Fig. 3, photo-electric cells A, arranged at intervals along a highway &c., are energized by a side light on a vehicle and switch on a bank of overhead lamps K illuminating a section of road ahead, the lamps being extinguished after a period sufficient for the vehicle to pass the section.
Patent GB-1144157-A (GB)
Title: Improvements in castors
Inventor: HOLT ALBERT CHARLES
IPC: B60B33/02
Filed: 1966-06-04
Abstract: 1,144,157. Castors. HOMA ENG. Ltd. 4 Sept., 1967 [4 June, 1966], No. 24980/66. Heading A4U. In a pedal plate, rockable transversely to the plane of a castor wheel 3 on a pin 16 to engage a cam surface 13 with the wheel rim through an interposed spring 14, the plate is recessed at 18a so that the outer surfaces of the plate and a securing nut 19 are flush, and the nut has a screwdriver's slot in its outer surface to facilitate alteration of braking pressure. A neck 19b loosely engages in the hole 18 and the upper end of the plate, which is fulcrumed forwardly on the pin 16 when the cam is engaged with the wheel rim, forces the upper end of the spring 14 against a flat 6a on a bearing housing 6 to simultaneously lock the castor against swivelling. The nut has a rubber ring, fitting within the recess, and radial slots or ribs pressed by the action of the spring 14 into engagement with slots or ribs in the recess for step-by-step adjustment. The plate has an "off" pedal and a cam formation for centreing, and a stem 5 which is rotatable in the bearing housing has a sleeve 6b with screws 7, 8 for securing in a tubular leg, the screw 8 being a grease nipple. In a modification the spring 14 is dispensed with or a non-swivellable castor is secured to an article of furniture by a bracket.
Patent GB-957023-A (GB)
Title: Improvements in high pressure gaseous discharge lamps
IPC: H01J61/30
Filed: 1960-07-19
Abstract: 957,023. Discharge lamps. PATENTTREUHAND-GESELLSCHAFT FUR ELECTRISCHE GLUHLAMPEN m.b.H. July 19, 1960 [July 22, 1959], No. 25124/60. Addition to 880,422. Drawings to Specification. Heading H1D. A rare gas-mercury vapour discharge lamp for continuous operation in which the electrode distance amounts to at least double the inside diameter of the envelope comprises an envelope of quartz or other transparent material of temperature resistance similar to quartz and which for the purpose of obtaining a wellstabilized discharge has a filling pressure of gas, reduced to a lamp without dead space, lying between 5 and 350 mm., preferably between 20 and 200 mm., and which when the lamp is operated without artificial cooling at a low voltage gradient of less than 30 volts/cm. of electrode distance and at a current density of less than 100 amps/cm.<SP>2</SP> of envelope crosssection has an input concentration between 5 and 200 watts/cm.<SP>3</SP>, preferably between 10 and 80 watts/cm.<SP>3</SP>, of envelope volume, the filling containing also an amount of mercury in the range of 0.01 to 0.7 mgrms. per cm.<SP>3</SP> of envelope volume whereby the current density of the discharge amounts to more than 2 amps. per sq. cm. of envelope cross-section. The relation between the filling pressure and the reduced filling pressure of a lamp without dead space is given in the parent Specification. In a specific example the envelope has a diameter of 30 mm., a filling of xenon at a pressure of 100 mm. corresponding to a reduced pressure of 70 mm., a filling of 0.2 mmgrs. of mercury per cm.<SP>3</SP> corresponding to a mercury operating pressure of about 200 mm., an arc length of 120 cm., an arc loading of 170 watts/cm., and a current density of 6 amps/cm.<SP>2</SP>.
Patent GB-1017261-A (GB)
Title: Independent suspension
Inventor: ABBOTT BRIAN
IPC: B60G15/06
Filed: 1963-06-25
Abstract: 1,017,261. Independent rear suspension. FORD MOTOR CO. Ltd. June 11, 1964 [June 25, 1963], No. 25181/63. Heading B7D. An independent rear suspension comprises swinging halfshafts 7 each journalled in a hub 17 supporting the vehicle through a self-levelling shock absorber/ spring unit 53 (as described in Specification 969,703) and a leaf spring 45 pivotally connected to the hub about an axis extending longitudinally of the vehicle. The spring 45 comprises a single leaf 47a and a stiffener blade 49a, and carries a cradle 37 clamped to the outer members 33 of rubber sleeve assemblies mounted on opposed spindles 27 projecting from the hub 17. In a modified arrangement for non-driven wheels each half-shaft 7 is pivotally connected to the vehicle about a longitudinal axis and the wheels are rotatably mounted on the half-shafts.
Patent GB-241546-A (GB)
Title: Improvements in and relating to linkwork for converting rotary motion into reciprocating motion
IPC: F16H21/26
Filed: 1925-10-09
Abstract: 241,546. Reaney, R. J. Oct. 14, 1924, [Convention date]. Crank linkages; toggles.-Link-work for converting rotary into reciprocating motion, applicable to air compressors in which the cylinder and piston reciprocate in opposite directions, comprises driving cranks acting through connecting-rods such as 22, 23, and pairs of toggle links such as 25, 26, and 33, 34, one end of the pair 25, 26 being pivoted at 27 t'o the framework and the other end at 28 to the piston rod 29 which is slidably mounted in supports 30, whilst one end of the pair 33, 34 is pivoted at 33<a> to the framework and the other end to the cylinder 35 which is adapted to slide on the bearing block 36. The piston and cylinder are thus moved oppositely each making a double reciprocation during one rotation of the crank shaft. In the arrangement shown in Fig. 1, a crank arm 20 with diametrically opposite crank pins 21, extends from a disc 19 on the end of a shaft driven through toothed gearing 16 from a fly-wheel shaft 11. In a modification, a third crank pin is arranged at 90 degrees to the two shown and actuates a third pair of toggle levers introduced between the pivotal end 28 of the lever 26 and the piston rod, the stroke of which is thus increased.
Patent GB-1338955-A (GB)
Title: Power press
IPC: B30B15/00
Filed: 1971-04-19
Abstract: 1338955 Power press CENTRALNE BIURO KONSTRUKCYJNE PRAS I MLOTOW 19 April 1971 [16 March 1970] 25347/71 Heading B5F A power press includes a head 1, a ram 4 and a drive system which comprises slipper pads 8, 9 mounted in the head 1 and the ram 4 and engaging one to four driving discs 5 each having an inclined lower surface. The ram 4 is slidable on the columns 17 connecting the head 1 and a press table 21. In operation each disc 5 is rotated by a toothed gear 7 and cams the ram 4 downwardly. A return mechanism for the rani may comprise a spring arrangement 11 or an hydraulic system such as a bladder type accumulator (10, Fig. 1) or a combination of hydraulic and spring systems. The hydraulic system of the combination, shown in Fig. 4, includes a cylinder 12 associated with each disc and mounted on the press frame, a spring urged piston 13 in each cylinder 12 and a slipper pad 14 engaging the inclined lower surface of a disc 5, and carried by each piston 13. In this latter system the columns 17 act as pistons in further cylinders 16 which are mounted in the ram 4 and hydraulically linked to the cylinders 12. The slipper pads may be self-aligning hydrostatic slipper elements or they may be coated with a low friction material and submerged in an oil bath. In the embodiment shown the height of the press table 21 is adjustable by means of nuts engaging threaded portions of the columns. In an alternative embodiment (Fig. 2) the uppermost position of the working surface of the ram is adjustable by sliding wedges (19) located in the ram under the mountings for the slipper pads 9. The length of the press stroke may be varied by forming the discs in two wedge-shaped parts (5a, 5b, Fig. 10) enabling the angle of inclination of the lower surface to be varied by adjustment of the relative angular positions of the parts (5a, 5b).
Patent GB-887679-A (GB)
Title: Improved electrical fuel control system for gas turbine engines
Inventor: BLACKABY BENJAMIN EDWARD
IPC: H02P23/00
Filed: 1959-07-24
Abstract: 887,679. Automatic fuel control systems. DE HAVILLAND AIRCRAFT CO. June 17, 1960 [July 24, 1959], No. 25423/59. Class 38 (4). In an automatic fuel-control system for a gas turbine 1, Fig. 1, having a compressor 2, combustion chamber 3, turbine 4 and a jet-pipe 5, a wash-plate of a fuel pump 6, driven at compressor speed and delivering fuel to burners in the combustion chamber, is positioned by an electro-hydraulic servomotor 7 controlled through a magnetic amplifier. The compressor drives a tacho-generator 9 supplying a signal to a speed error senser 10 whose setting is adjusted by a selection lever 11. A speed error signal is fed from the senser to a governor 12, which is also responsive to jet pipe temperature, intake pressure and temperature. A signal from the governor is fed to a control winding of the magnetic amplifier to position the swash-plate so as to maintain speed constant. The relationship between the swash-plate angle, the ordinate in Fig. 5, and compressor speed, the abscissae is such that for a given ambient pressure and forward speed, at low compressor speeds a particular swash-plate angle may correspond to two compressor speeds. In order that the swash-plate angle can be controlled by a governing signal which increases with increase of engine speed, a second control winding on the magnetic amplifier is fed with a signal, from a circuit 29, which falls with increase in engine speed, as represented by line L. The circuit 29 comprises a resistance network whereby the signal from the tachogenerator 9 is opposed by a fixed reference voltage. A rectifier prevents the occurrence of a reverse potential when the tachogenerator voltage exceeds the reference voltage.
Patent GB-1313428-A (GB)
Title: Pharmacodynamically effective 10-4-substituted piperazino-10,11- dihydrodibenzo-b,f thiepins and a method of preparing same
IPC: C07D409/04
Filed: 1970-05-28
Abstract: 1313428 Piperazino-dibenzothiepin derivatives SPOFA UNITED PHARMACEUTICAL WORKS 28 May 1971 [28 May 1969] 25681/70 Heading C2C Dibenzothiepin derivatives (some of which are novel) of the Formula I wherein R<SP>1</SP> is a hydrogen or halogen atom, an alkyl group R, a trifluoromethyl group, an alkoxyl group OR, an alkylthio group SR, an alkanesulfonyl group SO 2 R, or a nitro or cyano group, and R<SP>2</SP> is an alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, aralkyl, hydroxyalkyl, acyloxyalkyl, dialkylaminoalkyl or alkoxycarbonylalkyl group, the alkyl groups represented by R having a straight or branched chain and having from 1 to 4 carbon atoms, the cycloalkyl groups being cyclopropyl to cyclooctyl groups, the acyl group being derived from an aliphatic carboxylic acid with from 2 to 5 carbon atoms and the aralkyl group optionally being substituted in the benzene ring with an alkyl group, a halogen atom, an alkoxyl group, an alkylthio group or a trifluoromethyl group, with the proviso that when R<SP>2</SP> is a 4-methoxybenzyl group, R<SP>1</SP> is hydrogen atom or a trifluoromethyl group, an alkanesulphonyl group, a nitro group or a cyano group only, and acid addition salts thereof, are prepared by reacting a secondary amine of the Formula II with a reactive ester of an alcohol of the formula R<SP>2</SP>-OH, and optionally reacting the product with an acid to form the corresponding acid addition salt. The novel compounds are those in which R<SP>1</SP> and R<SP>2</SP> have the meanings given above with the following provisos: (i) when R<SP>2</SP> is a 4-methoxybenzyl group, R<SP>1</SP> is not a halogen atom, an alkyl group R, an alkoxy group OR, nor an alkylthio group SR; (ii) when R<SP>2</SP> is an alkylcarbonyloxyalkyl group, R<SP>1</SP> is not a halogen atom; (iii) when R<SP>2</SP> is methyl, R<SP>1</SP> shall not be a halogen atom, an alkyl group R, a trifluoromethyl group, an alkoxyl group, an alkanesulphonyl group, alkylthio or a nitro group; (iv) when R<SP>2</SP> is an alkyl or hydroxyalkyl group, R<SP>1</SP> shall not be a halogen atom or a cyano group; and the addition salts of such substituted thiepins. Compounds of the Formula II are prepared by reacting piperazine or 1-(ethoxycarbonyl)- piperazine with an 8-R<SP>1</SP>-10-chloro-10,11-dihydrodibenzo(b,f)thiepin and, when 1-(-ethoxycarbonyl)piperazine is used, hydrolysing the resulting ester. Pharmaceutical compositions having pharmacodynamic, sedative, hypothermic, antiserotonin, antihistaminic, vasodilatory, and cataleptic activity, comprise a novel compound I together with a pharmaceutical carrier.
Patent GB-1382856-A (GB)
Title: Hydraulic brake system
IPC: B60T13/12
Filed: 1972-06-01
Abstract: 1382856 Anti-skid braking systems TELDIX GmbH 1 June 1972 [3 June 1971] 25686/72 Heading F2F  An hydraulic brake system for vehicles comprises a pump connected to the master cylinder 101 and delivery, under its control, brake fluid into a circuit leading to the brake cylinders and means for temporarily disconnecting the pump from the master cylinder and connecting the pump to an accumulator chamber 114 of an antiskid device so that the pump acts both as a brake servo unit and a return pump for the antiskid system. The connection and disconnection is performed by valves 116, 117 operated at a predetermined fluid level of the accumulator 114. Operation of the brake pedal 100 closes a switch 102 to start a motor 103 driving an eccentric 120 to operate the pump and fed by the vehicle battery or dynamo. The pump piston 106 is not moved by the eccentric 120 until brake fluid is pushed into cylinder 105 by depression of the pedal thereby moving the piston into engagement. If a tendency to lock occurs in a wheel, valves 111 respond and disconnect the brakes from conduit 112 and release fluid into a conduit 113 and accumulator 114. Valve 116 which is normally open is now closed while the normally closed valve 117 is opened so that the pump receives, for a period, fluid from accumulator 114 instead of from the master cylinder. Valves 116, 117, which may be replaced by a two-way valve, return to their original states when the accumulator is emptied.
Patent GB-977906-A (GB)
Title: Solvent compositions
IPC: C09G1/00
Filed: 1961-07-14
Abstract: A non-irritant general purpose solvent composition suitable for cleaning natural and synthetic fibrous material and for the removal of nail varnish comprises (a) a compound containing an ether group as the only functional group, e.g. dioxane, ethylene glycol dibutyl ether, diethylene glycol diethyl ether or diisopropyl ether; (b) a compound containing both ether and alcohol groups, e.g. ethylene glycol mono-methyl, -ethyl or -butyl ether, or dipropylene glycol; and (c) a compound containing a keto-group, e.g. diethyl ketone, acetone, acetylacetone or diacetone alcohol.  In addition, glycols, polyhydric alcohols such as glycerol, acetals, esters such as polyglycol stearate 400 and castor oil, scent such as terpilolene, terpenes, dye and water may also be included. The solvent composition may be produced in liquid, cream, gel or aerosol form.
Patent GB-1188185-A (GB)
Title: Preparation of d-2-Amino-1-Butanol
Inventor: HALMOS IMRE AUREL
IPC: C07C215/08
Filed: 1967-06-02
Abstract: 1,188,185. d - 2 - Amino - 1 - butanol. AMERICAN CYANAMID CO. 2 June, 1967 [16 Sept., 1966], No. 25698/67. Heading C2C. d-2-Amino-1-butanol is obtained from dl-2- amino-1-butanol by (1) adding to the latter, in a solvent containing at least 50% C 1-6  alkanol and not more than 1À0% by weight water, at least 0À5 moles of L-tartaric acid per mole of dl-alcohol, separating the crystalline acid L- tartrate of d-2-amino-1-butanol formed and (2) dissolving or suspending the latter in water or a water-organic solvent mixture, adding an alkaline earth oxide or hydroxide, separating the alkaline earth L-tartrate and fractionally distilling the remaining layer to give d-2-amino- 1-butanol. The solvent in stage (1) is preferably methanol or ethanol or a mixture thereof and is advantageously anhydrous. Stage (2) is preferably performed in water and the alkaline earth L-tartrate may be treated with H 2 SO 4  to yield L-tartaric acid which may be re-used. l-2- Amino - 1 -butanol may be recovered from the mother liquor of stage (1). The L-tartrate may also be prepared by adding an approximately equimolar mixture of L-tartaric acid and another acid which forms a salt soluble in the solvent used, e.g. acetic acid.
Patent GB-685924-A (GB)
Title: Excavating apparatus
IPC: E02F3/348
Filed: 1949-10-06
Abstract: 685,924. Scraping apparatus. NUNN, H. J., and LAVERICK, J. A. C. Jan. 5, 1951 [Oct. 6, 1949], No. 25746/49. Class 68(i) [Also in Group XXX] An angle dozer having a single or oppositely inclined blades is combined with an elevator conveyer or a pair of conveyers which collect spoil in conjunction with the dozer blade or blades and discharge it on to a further conveyer which delivers the spoil at a single loading point. In the form shown, Fig. 2, the dozer blades 1, 1<SP>1</SP> are pivoted to the main chassis A by arms, adjustment of the blades being effected by a hydraulic ram 10. The spoil from the dozer blades is removed by a pair of bucket conveyers E, E\ which are mounted one en each side of the chassis and which are carried by driving sprockets 17 and idler sprockets 15 rotatably mounted on frames (not shown), the lower ends of which carry deflector plates 25, 25<SP>1</SP>. The upper part of the bucket conveyer passes between a shoot box 27 and delivers on to an endless-chain transverse conveyer, comprising a series of tray-like containers 38, which overhangs the chassis to load the spoil on to a dump or another vehicle. Fitted on the chassis is a separate elevator power unit L, having an integral gear box N, which drives (through a five-speed gear box J) the elevating conveyers E, E\ and through an intermediate gearbox K, the transverse conveyer. A power take-off from the gearbox N drives a continuously running gear-type oil. pump feeding the hydraulic ram 10 via a control valve and an intermediate reservoir 10<SP>1</SP>. The control valve has a "hold blade" position (in addition to the normal "raise blade" and "lower blade" positions) in which the pump merely recirculates oil through itself and back into the reservoir. The depth of penetration of the buckets of the conveyers E, E' may be adjusted either automatically or manually so that they may operate at the same or a higher level than the blades. In one method of automatic adjustment, Fig. 4, each elevator comprises dual parallel beams 50 pivotally mounted at their upper ends on the superstructure carrying the transverse conveyer and connected at their lower ends by ropes 53 to a cross stay 12 on to' the dozer blade 1'. Thus the conveyers are raised with the dozer blades. The machine may be used for moving spoil from a dump by driving it alongside the dump and using the elevator conveyer on that side to pick up material from the dump and pass it to the elevator conveyer.
Patent GB-354574-A (GB)
Title: Improvements in padlocks
IPC: E05B67/18
Filed: 1930-08-29
Abstract: 354,574. Padlocks. ROBINSON, G. C. and JONES, T., Combination Works, Willenhall, Staffordshire. Aug. 29, 1930, No. 25799. [Class 44.] In a padlock in which a paper seal can be inserted between the casing and a pivoted cover, adapted to be engaged by the pivoted hasp 13, the main part 1 of the casing and the cover 26 are formed as castings, the part 1 being formed with a projecting block 5 carrying the hinge pin 6 for the cover. The casing is completed by a plate 25, which fits on the reduced ends of the pivots 7, 8, and is secured by riveting the ends. A ward plate 14 is disposed between two pivoted locking levers 9 for the hasp and extends between the springs 10 of the levers so as to prevent lateral movement thereof. The barrel 19 for the substantially flat key 21 is formed with reduced ends 22, 23, the end 23 engaging in a recess 24 in the back of the casing.