baber/WOPTO huggingface dataset:
Patent GB-701461-A (GB)
Title: Method for purifying suspensions of fibrous material and a tubular hydro-cyclone forcarrying out this method
IPC: B04C5/18
Filed: 1951-07-16
Abstract: 701,461. Centrifugal separators. DORRIES AKT.-GES., O., VORM. MASOHINENFABRIK BANNING & SEYBOLD. July 16, 1951 [July 19, 1950], No. 16831/51. Class 23 A suspension of fibrous material is purified in a hydro-cyclone having in its wall 1 at least one annular inlet 2 discharging a thin stream of water into the decending vortex. The feed chamber 3 for the annular inlet may have a tangential supply pipe 4 or guide blades may be provided so that the clean water entering the cyclone. rotates with the decending vortex.
Patent GB-677771-A (GB)
Title: Process of producing high molecular polyamides
IPC: C08G69/08
Filed: 1947-06-26
Abstract: A high molecular polyamide is prepared by heating a mixture of 6-caprolactam and 6-amino caproic acid for 6 hours at 150-300 DEG C., in an inert atmosphere provided by the steam evolving in the reaction.  The melted product can be spun into threads, which can be cold drawn.  The 6-amino-caproic acid may be replaced by its low molecular condensation product.  Specification 461,236 is referred to.
Patent GB-918093-A (GB)
Title: Improvements in or relating to pulse generators
IPC: H03K5/04
Filed: 1960-05-13
Abstract: 918,093. Pulse circuits. REGIE NATIONALE DES USINES RENAULT. May 13, 1960 [July 22, 1959], No. 16970/60. Class 40 (6). In a pulse generator capable of being controlled either by incoming pulses or by a mechanical contact-breaker, pulses are fed to a phase-splitter having means for selecting either or both outputs to trigger a monostable circuit. Control by incoming pulses.-In Figs. 3, 5, pulses 1 from a magnetic drum are fed via terminals PR to an amplifier P1 giving waveform A which is clipped by P2 to give a pulse B. Bias for valves P1, P2 is provided by rectifying the output of a winding e of a power transformer. Pulse B is inverted by a phase-splitter P3, giving pulse C at the anode which is differentiated and passed by diode D1 to a limiting amplifier T1, T2 giving waveform E. A monostable multivibrator F1 is triggered by waveform E, giving a pulse F, the duration of which is adjusted by potentiometer R31. The output of F1 is passed via a cathode follower G1 and an amplitude control R47 to output terminals S2. A further identical set of equipment represented by V2 is provided, terminating in a cathode follower G<SP>1</SP>1. The output of the two sets may be combined by closing switch S1-S2. Control by contact breaker.-The system may alternatively be controlled by a mechanical contact-breaker C, which short-circuits the cathode resistor R8. The waveforms are shown in Fig. 4. Depending on the setting of the ganged switches 02, 03, the monostable multivibrator F1 may be triggered either by pulse at the time of opening of contacts C or by pulse at the time of closing of contacts C or (as shown) by both pulses.
Patent GB-612903-A (GB)
Title: Improvements relating to operating mechanism for pyrophoric lighters
IPC: F23Q2/08
Filed: 1946-06-05
Abstract: 612,903. Frictional lighters. LOWENTHAL, J., and MOORE, C. W. June 5, 1946, No. 17114. [Class 75 (iii)] In a frictional lighter the ratchet pawl 36 co-operating with ratchet teeth 34 on the friction wheel 33 is part of a spring-urged plate 35 slidably mounted within the rotatable cover 13. The plate 35 is a sliding fit between the upper wall 13<1> of the cover 13 and an interior wall 41 carrying the snuffer 39. A compression spring 37 held between a shoulder 401 of the plate 35 and the inner end face of the cover 13 urges the pawl 36 into engagement with the ratchet teeth 34, an extended part 43 of the plate 35 acting as a guide. The movement of the plate 35 may be stopped by an upwardly extending part of the snuffer 39. The spring-actuated cover 13 is released from a hook 18 when a cam, rotated by an operating wheel 23, displaces a slidable plate 16 carrying the hook 18.
Patent GB-111522-A (GB)
Title: Improvements in or relating to the Treatment of Bread, Biscuits and the like.
Filed: 1916-11-29
Abstract: 111,522. Baker & Sons, J., Kirman, H., and Taroni, C. E. Nov. 29, 1916. Bread, biscuits, and the like, immediately after baking, are cooled rapidly, in an atmosphere of cold humidified air in order to preserve themoisture in them. Fig. 1 shows part of a chamber a to which bread &c. is transferred from the oven j by a " peeling " device k, described in Specification 111,523, and through which it is conveyed by an endless-band conveyer d. Streams of cold humidified air are supplied by trunks l and branches m, which alternatively or additionally may be under the loaves, &c.
Patent GB-379422-A (GB)
Title: Improvements in and relating to door-operating mechanism
IPC: E05F15/20
Filed: 1931-06-12
Abstract: 379,422. Door operating systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Fitzgerald, A. S. ; Warwick Road, Wynnewood, Pennsylvania, U.S.A.) June 12, 1931, No. 17141. Convention date, June 12, 1930. [Class 65 (i).] A door is opened by an approaching object or person causing a change in the light conditions of a light-sensitive device and a cooperating beam, for example, by the beam being reflected on to the device or by being cut off therefrom. In the arrangement illustrated there is provided at each side of the door 2 a photo-electric tube 6 illuminated by a lamp 8 ; interruption of either beam causes the photo-electric tube to actuate, through an amplifier system, a switch 27 for starting up a door-operating apparatus 3 preferably of the electric hydraulic form described in Specification 363,137, comprising an electricallydriven impeller for forcing liquid to one side of a piston which is connected to one end of a bell crank 5 the other end of which is linked to the door 2. The two photo-electric tubes 6 are connected to the grids of two thermionic valves 11, the filaments and anodes of which are energized from tappings of a transformer 12. So long as the tubes 6 are illuminated the grids have a negative bias during the active (positive) half-cycle by reason of the tube being connected to an appropriate transformer tapping, but on interruption of the beam the bias becomes positive, by reason of a 2 megohm resistance 13 connected between the grid and positive filament, thereby increasing the anode current to close a contact armature 15. The contact 15 lies in the grid circuit of a thermionic valve 17 which controls a further valve device 28, both these valves being energized from a transformer 29. Normally a condenser 23 and a resistance 24 of 0À5 megohm between the grid and filament of valve 17 maintain the grid near cathode potential to allow a large anode current to flow which by the drop in a resistance 25 gives a high negative bias to the grid of valve 28, the discharge current of which is zero and therefore unable to operate the switch 27. The closure of the contact 15 by the interruption of the light beam applies a negative potential to the grid of valve 17 from a potentiometer resistance 19 which is energized by a full-wave rectifier 21. The decreased or zero anode current in resistance 25 raises the grid potential of valve 28 and thereby increases its discharge current to close the switch 27 for putting the door-operating apparatus 3 into action. The condenser 23 of valve 17 is of 5 to 10 microfarads and delays the restoration of the circuits. to normal until it has discharged through its resistance 24 ; this delay interval can be varied by varying the voltage applied across the condenser. The valve device 28 may be an arcdischarge device as described in Specification 153,532, [Class 39 (i), Electric lamps, Arc &c.]. The relays may have different time constants to permit the door to open more quickly when approached from one side.
Patent GB-529946-A (GB)
Title: Glare-proof blinds made of paper
IPC: A47H23/12
Filed: 1939-06-13
Abstract: 529,946. Window blinds. MARCIN, V. W. June 13, 1939, No. 17241. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 24, 1940]. [Class 20 (iii)] A glare-proof blind is made of paper or similar material with narrow slits of regular or irregular form punched therein. The material may be reinforced by means of applied " strips," or by treating with chemicals, e.g., a solution of Konyaku powder.
Patent GB-547848-A (GB)
Title: Improvements in or relating to projectiles
IPC: F42B12/66
Filed: 1940-12-05
Abstract: 547,848. Anti-aircraft projectiles. PIESTRAK, C. S. Dec. 5, 1940. No. 17318. [Class 9 (i)] The front and rear parts 1,5 of an anti-aircraft projectile comprise bursting charges 2, 25 and are connected in a readily separable manner by a fusible metal ring 22. The two parts are also connected by a cable or the like 29, coiled within the hollow extension 3 of the part I, the front connection 30 being a swivelling one, so that when the parts become separated during flight, they will remain connected by the cable and will follow in tandem a spiral course. The two parts are exploded on impact or by time fuzes. The fuze-system comprises a base time fuze, the burning of which is initiated by the propellant-gas pressure impelling a striker 13 on to a cap 14, an adjustable ring of fuze composition 17, Fig. 2, in a rotatable plug 7, an annulus 19 and tubes 24 of composition, leading to an annulus 20 of heatgenerating composition by the burning of which the fusible ring 22 is melted. The composition 20 also ignites delay fuzes in tubes 35 leading to the forward bursting charge 2, and in similar tubes leading rearwardly into the bursting charge 25, to destroy the shell parts if they are not not otherwise explodes.
Patent GB-363964-A (GB)
Title: Improvements relating to belt conveyors
IPC: B65G21/06
Filed: 1931-06-15
Abstract: 363,964. Endless belt conveyers. WRIGHT, W. D., Park Collieries, Garswood, Wigan, and HIGGINS, M. F., of Meco Works, Worcester. June 15, 1931, No. 17344. [Class 78 (i).] In a conveyer of the kind having side plates 5 and anti-spillage shelves 6 arranged laterally of and below the working run as in Specification 329,757, [Class 78 (i), Conveyers &c.], the shelves 6 are mounted on pairs of pins 8 mounted in frames I and having arcuate surfaces permitting a rolling movement so that adjacent sections may be relatively angularly adjusted. Each side plate section 5 is formed integral with a shelf section 6 from a single pressed sheet of metal. The joints a, b between the sections are offset from the bearings of the rollers 4 to prevent fouling. Transverse movement is prevented by lugs 10 riveted to the plates 5 which engage the outer faces of upstanding webs of the brackets 3.
Patent GB-529968-A (GB)
Title: Improvements relating to contacts suitable for electric distribution pillars and other apparatus
IPC: H01H33/02
Filed: 1939-06-14
Abstract: 529,968. Two-point couplings. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., and MOOR, E. June 14, 1939, No. 17364. [Class 38 (i)] A flat blade contact 3 for a fuse &c. panel in a distribution pillar is made as a T-shaped member, the head 14 of the T forming the means for mounting the contact and being extended at one side to form a cable socket 17 that is displaced from the plane of the part 14. The contact is mounted on an insulator 1 in such a way as to be reversible so that the socket 17 can take up the position 20. A second interchangeable contact member is also made with the socket below the plane of the part 14 so that it can take up the positions 21, 22 thus providing four possible positions to suit various cable positions.
Patent GB-750877-A (GB)
Title: Purification of isopropylnaphthalene
IPC: C07C7/06
Filed: 1954-06-14
Abstract: Isopropylnaphthalene containing the beta isomer is purified to increase the activity of the beta isomer towards hydroperoxide type oxidation in the manufacture of beta naphthol by contacting the isopropylnaphthalene with an alkali metal hydroxide and fractionally distilling at a temperature below 200 DEG  C. in the absence of molecular oxygen to obtain a fraction free from naphthalene boiling in the range of isopropylnaphthalene.  The preferred alkali metal hydroxide is sodium hydroxide in an amount of 0.05 to 10 per cent. Treatment may be in the form of a separate step in which case the isopropylnaphthalene is removed as a layer, or the separation may be effected by distillation preferably using a pressure below 150 mm. using an inert gas such as nitrogen, steam or carbon dioxide to displace the air.  In addition organic compounds such as benzyl alcohol, tetrahydrofurfuryl alcohol, glycerol or glycol may be added to form azeotropes with the naphthalene.  The process may be applied, not only to the treatment of mixed alpha and beta-isopropylnaphthalene obtained directly from the propylation of naphthalene, but also to the isopropylnaphthalene recovered from an oxidation process in which part of the beta isopropylnaphthalene has been removed by conversion to the hydroperoxide by selective oxidation.
Patent GB-831829-A (GB)
Title: Improvements in or relating to fluid-operated pressure applying devices
IPC: F16D65/54
Filed: 1957-05-31
Abstract: 831,829. Fluid pressure brakes. RECHERCHES ETUDES PRODUCTION R.E.P. May 31, 1957 [June 1, 1956], No. 17440/57. Class 103 (1). An automatic adjustment mechanism for fluid pressure actuators, particularly for brakes, comprises an annular U-section member within which are housed rubber washers R gripping segments S, of which there are four as shown in the drawing. When the actuator is operating normally the segments S are tilted in the manner shown in Fig. 1, and on release of the fluid pressure, act as non-return mechanism so that the U member moves back through the clearance J, which is the next clearance between the lining G and the part to be braked. When the lining has worn to such an extent that it requires replacement, the ram P is moved outwards until the internal edges of the segments S come into the chamfer C 2 , Fig. 3. The ram can then be pushed back into the cylinder, the segments S now taking up the opposite slope as in Fig. 4 (not shown). After replacement of the lining G, application of fluid pressure in chamber A restores the system to its initial condition.
Patent GB-1155655-A (GB)
Title: Photographic Enlarging Apparatus
Inventor: BURES MIROSLAV
IPC: G03B27/54
Filed: 1967-04-17
Abstract: 1,155,655. Photographic enlarging apparatus. MEOPTA, NARODNI PODNIK PREROV. April 17, 1967 [May 6, 1966], No.17467/67. Heading G2A. A photographic enlarging apparatus has a head 5 containing an optical system-condenser 52 and enlarging lens 71-, which head is pivotable about an axis through the pivot 91 perpendicular to the optical axis; a light source 61 forming part of an object illuminating system 61-63 mounted on an independent holder 6, the illuminating beam being reflected by a mirror 51; and the holder being pivotable in such a way that the light source remains vertical, this being effected by a member connecting the holder and a fixed part of the apparatus. As shown, the connecting member is formed by parts 8, 9 of a parallel linkage, but it can be formed Fig. 4 (not shown) by a belt transmission. The head is pivoted through 90 degrees about the pivot 91 so as to enlarge an object, carried by a part 7, on to a vertical plane, if the base-plate 1 of the apparatus is not large enough to take the required enlargement size.
Patent GB-702693-A (GB)
Title: Improvements in or relating to phase monitoring circuit arrangements
Inventor: THORNHILL WILLIAM THOMAS
IPC: H03F1/54
Filed: 1951-07-24
Abstract: 702,693. Monitoring radio transmitters. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 29, 1952 [July 24, 1951], No. 17548/51. Class 40 (5). [Also in Group XXXVI] A phase monitoring circuit responsive to departures from a defined phase relation between two carrier waves, one of which is amplitudemodulated, comprises means for mixing the waves in a circuit giving zero output voltage if the waves are of equal amplitude and in the defined phase relation ; and a response circuit controlled partly by the rectified output from the mixer and partly by the rectified modulation signal so that despite the modulation no response is obtained so long as the defined phase relation is maintained. An alarm or control relay may be operated by the response circuit. The diagram shows a modulated radio transmitter in which a phase comparison is made between the output of the carrier source 1 and the aerial output from the modulating and power-amplitying stage 3. The unmodulated source output is fed by a capacity coupling 7 to a tap on the tuned grid circuit 4 of an amplifier 5, the anode circuit 6 of which is also tuned. The anode output voltage is fed through an adjustable capacity 13 to a point 10. Modulated output energy from the aerial lead 9 is taken by a capacity plate or otherwise and fed to the same point 10 through an adjustable capacity 11 shunted by an adjustable resistor 12. The elements are so adjusted that in the absence of modulation, and with the defined phase relation (e.g. phase agreement) between the waves picked up at 7 and 9, there is zero voltage at the point 10. When the defined phase relation is departed from, a rectifier 14 produces a negative output voltage which passes through a time-constant circuit 15 to the grid of a normally-conducting valve 16, blocking this valve and causing a relay 17 to release its armature 18 to close an alarm or control circuit. To prevent the relay from being operated by changes of amplitude of the emitted wave due to modulation, the modulation transformer 19 has a secondary coil connected by a potentialdivider 20 to a rectifier 21, which may be of the full-wave type and supplies a compensating- voltage to the grid of the valve 16. The relay 17 is shunted by a circuit 23 designed to prevent actuation by transients.
Patent GB-935616-A (GB)
Title: Improvements in and relating to sheet metal nut devices
Inventor: PARK LESLIE
IPC: F16B37/04
Filed: 1960-05-18
Abstract: 935,616. Nuts. CARR FASTENER CO. Ltd. April 11, 1961 [May 18, 1960], No. 17608/60. Class 89 (1). A sheet-metal nut adapted to be secured detachably to a support a, b comprises a base 1 with an aperture 3 formed to receive a screw &c. 4 for securing a part (not shown) to the support, and a portion 5 integral with the base and having one or more resilient fingers 6 for insertion through recesses or apertures 9 in the support, the fingers having a bent portion for engaging the face of the support adjacent the aperture 9. The base 1 is inserted through a slot 10 in the support as the fingers 6 are snapped through the apertures 9. In Fig. 3, the fingers 6 extend to one side of the base 1a and the portion 5a to the other. Alternatively, Fig. 4, the fingers 6b and base 1b may extend to opposite sides of the portion 5b.
Patent GB-612979-A (GB)
Title: Improvements in and relating to means for securing lids on oil drums and like containers
IPC: B65D45/32
Filed: 1946-06-12
Abstract: 612,979. Securing lids to containers. MILES DRUCE & CO., Ltd., and EARNEY, J. E. June 12, 1946, No. 17635. [Classes 21, 66 and 125 (iii)] A metal clip, for securing the outwardly flanged edge of a dished lid 4 to an oil drum or like container 2 having a projecting peripheral rim 3 around its opening, comprises an arcuate channel-like member 1, the sides 5, 6 of which are adapted to engage respectively below the projecting rim 3 of the container and above the edge of the dished lid, the upper side 6, being provided with a number of projecting portions 8 of preferably semi-circular shape which can be bent down into contact with the dished lid, the length of the metal clip being such that two or three such clips will extend around substantially the major portion of and preferably the complete periphery of the container. The container may be fitted with a handle so that, when empty, it can be used as a bucket. Specification 551,247 is referred to.
Patent GB-1195612-A (GB)
Title: An Injection
IPC: A61K31/405
Filed: 1968-04-11
Abstract: 1,195,612. Injections. SUMITOMO CHEMICAL CO. Ltd. 11 April, 1968 [13 April,1967], No,. 17649/68. Heading ASB. A stable pharmaceutical composition for administration by injection, and having antiinflammatory, analgesic and antipyretic acivity, is prepared by adding an indolylaliphatic acid derivative of the formula wherein R<SP>1</SP> is an alkyl or alkoxy group having up to 3 carbon atoms, hydrogen or halogen, R<SP>2</SP> is hydrogen or an alkyl group having u,p to 3 carbon atoms, R<SP>3</SP> is hydrogen or an alkyl group having up to 3 carbon atoms and A is a phenyl group substituted by halogen at an optional position, styryl or pyridyl, to a non-aqueous organic solvent for injection to obtain a solution containing said indolylaliphatic acid derivative and adding an aqueous solution of an organic amine which is an alkanolamine or a basic amino acid to the solution to obtain a composition contaming 0.6 to 1 mole of said organic amine per 1 mole of the indolylaliphatic acid derivative, the amount of water present being not more than 50% by volume of the solution of the indolylaliphatic derivative in the organic solvent. The non-aqueous organic solvent may be glycerin, 1,3-butanediol, propylene glycol, dioxolanes, polyethylene glycols, glycofurol or dimethyl acetamide and examples of suitable organic amines include ethanolamine, diethanolamine, triethanolamine, 2 - dimethylaminoethanol, .2-diethylaminoethanol, arginine and lysine. The compositions may also contain analgesics. Preferred indolylaliphatic acid derivatives are N-(p-chloroibenzoyl)-2-methyl-5- methoxy-3-indolylacetic acid, N-nicotinoyl-2- methyl-5-methoxy-3-indolylacetic acid and N- cinnamoyl -2- methyl-5-methoxy-3-indolylacetic acid.
Patent GB-1206304-A (GB)
Title: Improvements in or relating to supporting members for the production of seating furniture, tables, garden lanterns and the like
IPC: F21V33/00
Filed: 1968-04-11
Abstract: 1,206,304. Furniture underframes. SPUMALIT-ANSTALT. 11 April, 1968 [14 April, 1967], No. 17653/68. Headings A4H, A4J and A4U. [Also in Division E1] An underframe for tables, stools, seats or a post for supporting a lantern comprises two cup shaped members 1 of synthetic plastics material connected together with their small ends facing each other. The cup shaped members 1 are secured together by a bolt 2, passing through inwardly directed tubes 5 at the small ends of the members 1. The large end of each cupshaped member 1 has internal ribs 9. A cushion A is placed in the large end of the upper cup-shaped member 1. A cylindrical member (10a Fig. 3) can be disposed between the two facing small ends of the cup-shaped members 1 to form a high stool and a wheel (13) serving as a footrest can be clamped between the cylindrical member (10a) and the lower cup-shaped member 1. A transparent table top (36) (Fig. 4) is secured by a nut (37) to the upper end of a bolt (2b) extending through the two cup shaped members 1 and a cylindrical member (10b). A circular lamp (33) is mounted under the table top and a weight (35) is disposed in the lower cup-shaped member 1. A lantern (39) (Fig. 5) containing a ring lamp (33) and a reflector (40) is mounted on the upper cup shaped member 1 and a cylindrical member (10c) is disposed between the small facing ends of the cup shaped members. A seat (41, Fig. 6) with the integral back is bolted to the upper cup shaped member 1. A bearing (20, Fig. 10b) may be disposed between the small facing ends of the cup-shaped members 1 to allow the seat to swivel. A plurality of seats are connected together in line by a rail (16, Fig. 11) having holes through which the bolts connecting the cup-shaped members 1 of the seats pass or by a rod (43, Fig. 12) passed through flat rings secured to other flat rings clamped between the cup-shaped members.