baber/WOPTO huggingface dataset:
Patent GB-738394-A (GB)
Title: Method and apparatus for separating solid particles from liquid in a liquid circulating system
IPC: B04B5/00
Filed: 1952-11-21
Abstract: 738,394. Centrifugal separators. SLEE, F. J. Nov. 16, 1953 [Nov. 21, 1952], No. 29534/52. Class 23. In a separator for separating solid particles from liquid in a circulating system, the major part of the liquid supplied to the rotor is discharged through reaction nozzles to drive the rotor, and the remainder of the liquid passes through a chamber within the rotor for the separation of the particles. The rotor D revolves on bearings D<SP>1</SP>, F about a fixed spindle B having passages B<SP>2</SP>, B<SP>3</SP> for supply of oil to a chamber J separated from the chamber H by a partition G. The major part of the oil supplied to the chamber J is discharged by the reaction nozzles K and the remainder of the oil passes through the annular gap at the edge of the partition or through holes in the partition to the chamber H from whence it is discharged through passages B<SP>5</SP>, B<SP>4</SP> in the spindle. Coarse and fine particles are collected in the chambers J, H respectively. The axial position of the partition may be adjusted, and the flow through the chambers may be varied by substituting different sized nozzles, by providing partitions of different sizes or having different sized apertures, or by control of the effective size of the passage B<SP>4</SP>. Reference has been directed by the Comptroller to Specification 668,766.
Patent GB-696081-A (GB)
Title: Improvements in apparatus for disinfecting closet pans or basins
IPC: E03D9/03
Filed: 1950-12-02
Abstract: 696,081. Disinfecting water-waste-preventers. SYMON, W. R. Nov. 30, 1951 [Dec. 2, 1950], No. 29535/50. Class 26 A disinfectant dispenser for water - closet cisterns comprises a container A, a syphon tube A<SP>1</SP> and a vent pipe b of inverted - U shape with the larger leg extending into the container, so that as the disinfectant becomes diluted by delivery of disinfectant and refilling with water at each operation of the cistern, the vent pipe may be raised in the stopper B to increase the volume cf liquid dispensed.
Patent GB-507039-A (GB)
Title: Improvements in and relating to guides for the valves of liquidcooled internal combustion engines
IPC: F01L3/08
Filed: 1938-10-12
Abstract: 507,039. Cylinders. JUNKERS FLUGZEUG - UND MOTORENWERKE AKT.-GES. Oct. 12, 1938, No. 29542. Convention date, Oct. 15, 1937. [Class 7 (ii)] A valve guide 15 extends through the cylinder water jacket, having a sliding packing 18 and a pressure joint 17, with or without a packing ; it is held by resilient means which may comprise a spring 23, the valve spring, long thin bolts, or spring washers. It may be made of bronze or a light alloy.
Patent GB-345982-A (GB)
Title: Preparation of new dyestuffs of the anthraquinone series
IPC: C09B1/467
Filed: 1929-09-30
Abstract: Anthraquinonylaminopyrimidines are prepared by condensing a halogenated pyrimidine with an aminoanthraquinone containing one or two replaceable hydrogen atoms attached to the nitrogen atom. The presence of a copper compound is advantageous.  Those products which contain a not-fully substituted amino group may be aroylated.  In examples: (1) 1.4-diaminoanthraquinone is condensed with 2.4-dichloropyrimidine; the product dyes bluish-violet shades, and after benzoylation, bluish-red shades: (2) 1-aminoanthraquinone is condensed with 2.4-dichlorpyrimidine (dyes orange shades): (3) 1-amino-4-hydroxyanthraquinone is condensed with 2.14-dichloropyrimidine (dyes reddish-violet shades): (4) 1.5-diaminoanthraquinone is condensed with 2.4-dichloropyrimidine (dyes red shades), and the product benzoylated (dyes orange-red shades).  The use of 2.4-dichloro-6-methylpyrimidine and 2.4.6-trichloropyrimidine is also mentioned, and in the Provisional Specification 2.4.5.6 - tetrachloro - pyrimidine, dichlorodiiodopyrimidine and 2.4-dichloro-5-nitropyrimidine; the latter Specification also refers to sulphonation of the products before or after benzoylation to produce wool dyestuffs. Specification 307,947, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-1286752-A (GB)
Title: Pneumatic spring
Inventor: KREJCIR OLDRICH
IPC: F16F9/05
Filed: 1970-06-18
Abstract: 1286752 Pneumatic springs AUTOBRZDY JABLONEC NARODNI PODNIK 18 June 1970 [20 June 1969] 29598/70 Heading F2S A pneumatic spring consists of a sleeve 1 of cord-reinforced elastomeric material secured at one end to a support surface and at the other to a hollow piston 9. The two ends of the sleeve are of equal diameter and have respective outturned lugs 2, 3. Between its ends the sleeve has a free portion 7 of greater diameter than the ends, and between this free portion and the piston end there is a portion 8 which lies against the inner wall of the piston. The lugs at each end are secured in recesses 4, 9 in respective sealing rings 5, 15. In Fig. 1, the sealing ring 15 is integral with the piston 9. In Fig. 2 (not shown), the corresponding ring (13) is separate from but secured to the piston. In the latter case the piston proper is of elastomeric material and constitutes a resilient stop for the spring when collapsed. Fig. 3 (not shown) depicts the form of the sleeve before fitting to the piston and the support surface.
Patent GB-534752-A (GB)
Title: Improvements in or relating to a valve gear for internal combustion engines of the sleeve valve type
IPC: F02B75/02
Filed: 1939-11-08
Abstract: 534,752. Valve gear. SCHMID, E. Nov. 8, 1939, No. 29655. Convention date, Jan. 31. [Class 7 (vi)] A sleeve valve 2 is reciprocated by a pair of members 10 trunnioned at 11 in slides 13 formed with grooves engaging projections 18 at each side of the valve, the slides working between fixed guides 12 formed as extensions of the cylinder.
Patent GB-1388840-A (GB)
Title: Preparation of phloroglucinol and its monomethyl ether
IPC: C07C37/02
Filed: 1971-06-24
Abstract: 1388840 Phloroglucinol OCE ANDENO BV 23 June 1972 [24 June 1971] 29687/71 Heading C2C A process for the preparation of phloroglucinol or its monomethyl ether comprises reacting a phenol of the formula wherein R 1 , R 3 , R 4  and R 5  which may be the same or different, each represent a hydrogen atom or a leaving group and R 2  represents a hydrogen atom, a leaving group or a group of the formula -OR 6  wherein R 6  represents a hydrogen atom or a methyl group with the proviso that (i) where R 2  represents a leaving group or a group of the formula -OR 6 , R 1  represents a hydrogen atom and only one of R 3 , R 4  and R 5  represents a leaving group; and that (ii) where R 2  represents a hydrogen atom, two of R 1 , R 3 , R 4  and R 5  represent leaving groups occupying positions such that upon leaving, one yne bond can be formed at the 4,5- or the 5,6-position, with an alkali metal hydroxide in the presence of an amount of water at least sufficient to monohydrate the or each yne bond formed. In the examples phloroglycinol is obtained from 4- chloro-1,3-dihydroxybenzene and 2,6-, 2,4- and 3,5-dichlorophenols and both phloroglucinol and its mono-methyl ether from 2-chloro-5- methoxy phenol.
Patent GB-1494984-A (GB)
Title: Quick-connect coupling
IPC: F16L37/092
Filed: 1976-07-16
Abstract: 1494984 Pipe joints OLIN CORP 16 July 1976 [18 July 1975] 29734/76 Heading F2G [Also in Division H2] A disconnectible female coupling member 10 for connection to a male member M having screw threads T, comprises a shank portion 12, enlarged to form a portion 14, housing a seal with a lip member 22 to seal against the end of the inserted male member M, and an outwardly funnelled portion at 17 followed by an inwardly funnelled portion at 18 and a mouth portion 19 these latter enclosing a resilient snap ring 23 having screwthreads 25 to engage the threads T, longitudinal slits 26 to enhance flexibility and an unthreaded end 28, the outer profile of the snap ring conforming to that of the funnelled portions at 17, 18 so that with the male member M pushed in and engaged with the screw threads 25 wedging action between the portion at 18 and the snap ring 25 will not allow removal of the male member unless this is held in at its end 28 to prevent this wedging action. The screw threads 25 are provided in a double-threaded arrangement, the depth of the threads being reduced to provide two threads within the pitch of the threads T of the male member M. In the coupled state, pressure of fluid inside the coupling will ensure provision of a seal by the lip 22. In an alternative construction the snap ring 23 is made in two parts, the unthreaded end 28 being separate and held in place by turning in of the end of the mouth portion 19 of the coupling member 10.
Patent GB-445784-A (GB)
Title: Improvements in or relating to supporting means for photographic cameras
IPC: F16M11/08
Filed: 1934-10-17
Abstract: 445,784. Stand heads. BILLING, N. P., 6, Lower Regent Street, London. Oct. 17, 1934, No. 29756. [Class 52 (v)] [See also Group XX] A stand attachment for use in making panoramic or stereoscopic photographs comprises an element, e.g. an arm pivotallv connected, detachably or not, to the camera body and means, e.g. screwthreaded recesses, for securing the element rigidly to a stand, e.g. a tripod head, or securing it for rotation relatively thereto, the latter means being offset from the pivotal axis of the element. Instead of directly connecting the element to the stand, an adapter comprising two parts capable of relative rotation through 180‹ and secured respectively to the element and to the stand may be used. In the form shown, an arm 13 is secured to the underside of the camera 12 by a pivot bolt 15 and has screw-threaded recesses 16, 17 at opposite ends. A recess 29 in the arm 13 carries a spring-pressed ball 31 engaging corresponding recesses in the camera. For panoramic photography, one part 20 of an adapter is screwed into the recess 16 and to the tripod head 19 and the camera is moved on the pivot 15 into a set of positions determined by the ball 31 and recesses on the camera. For stereoscopic photography, the second part 21 of the adapter is screwed into the recess 17 and placed over the part 20, a pin 26 on the part 21 moving in a cutaway groove 28 in the part 20. The arm can then be moved through 180‹, the camera being turned simultaneously to keep the direction of the optical axis the same in both positions. The parts 20, 21 may be screwed into sockets in the camera body when not in use. Specification 423,035, [Group XX], is referred to.
Patent GB-1079909-A (GB)
Title: Compositions containing crotonaldehyde resins
Inventor: JORDAN MANUEL ALBERT
IPC: C08G8/04
Filed: 1966-07-04
Abstract: Styrene-butadiene rubbers and ethylenepropylene terpolymer rubbers are rendered tacky by the incorporation therein of a resin that is the reaction product of crotonaldehyde with a dihydroxy benzene and/or an alkyl phenol in which the alkyl group contains at least 4 carbon atoms.  The rubber compositions may be dissolved in hydrocarbon solvents to form splicing cements.  Preparation of resins.-The crotonaldehyde, together if desired with another aldehyde, e.g. formaldehyde, is reacted with the alkyl phenol and/or dihydroxy benzene in the presence of an acid catalyst.  Exemplified phenols are p-octyl and p-dodecyl phenol and resorcinol. The phenol component may also contain other phenols, e.g. phenol.
Patent GB-621035-A (GB)
Title: Improvements in or relating to electric protective arrangements
IPC: H02H7/08
Filed: 1945-11-09
Abstract: 621,035. Protective cut-out arrangements. GENERAL ELECTRIC CO., Ltd., and CRANSTON, W. M. Nov. 9, 1945, No. 29959. [Class 38(v)] An electric motor 1 is protected against overheating on prolonged stalling, by a thermal switch whose contacts 5 are bridged by a bimetal strip 7 on over-heating so as to insert a low resistance 6 inch parallel with the motor and in series with a fuse 3 which thereupon blows. The bimetal strip may be heated by radiation from the windings or by a series heating coil 4. In Fig. 2 (not shown), one of a number of series-connected motors is shortcircuited on fault by a thermal switch, the remaining motors being short-circuited in sequence by further switches. The Provisional Specification describes also an arrangement wherein a series current-limiting resistance is normally short-circuited by the thermal switch, which opens on overload.
Patent GB-1360314-A (GB)
Title: New pyrene derivatives as optical brighteners
IPC: C07D251/20
Filed: 1972-06-24
Abstract: 1360314 Pynenyl-triazine compounds CIBAGEIGY AG 27 June 1972 [12 July 1971] 30077/72 Heading C2C [Also in Division C3] The invention comprises pynenyl-triazine compounds of the general formula wherein R 1 , R<SP>1</SP> 1 , R 2  and R<SP>1</SP> 2  independently of one another denote H 1  alkyl or halogen. These compounds may be prepared (i) by reacting a compound of formula wherein R 1 , R<SP>1</SP> 1 , R 2  and R<SP>1</SP> 2  have the above meanings with an approximately equimolar amount of pynene in the presence of an approximately equimolar amount of a Friedel-Crafts catalyst, preferably in a solvent which is inert towards the reactants at a temperature of 140 to 200 C., and then decomposing the complex produced, e.g. by treatment with water, (ii) by reacting 2-pynenyl-4,6-dichloro-1,3,5- triazine with equimolar amounts of each of a compound of the formulae in the presence of an equimolar amount of a Friedel-Crafts catalyst in a solvent which is inert towards the reactants at a temperature of 80 to 140 C.
Patent GB-1400185-A (GB)
Title: Units for use in building construction
IPC: E04F13/08
Filed: 1972-06-28
Abstract: 1400185 Cladding UNITY INTERNATIONAL DEVELOPMENT CO Ltd 28 June 1973 [28 June 1972] 30304/72 Heading E1B A cladding panel comprises an upper portion 2 formed or adapted to be mounted on or secured to a building and a lower portion 2 of substantially equal thickness formed to simulate brickwork or otherwise ornamented, and a series of spaced ribs 6 extending from the junction of the upper and lower portions to a point above the bottom of the lower portion by an amount substantially equal in height to the height of the upper portion. Spacing lugs 8 and 9 are provided. The panels are secured to a building structure in overlapping relationship with waterproof sheets extending from the top edge of each row of units to between the overlapping edges. The thickened portion need not taper as shown and may extend across the full width of the panel or be formed as spaced ribs.
Patent GB-1055243-A (GB)
Title: Improvements in or relating to electroplating
IPC: C07D295/21
Filed: 1963-07-31
Abstract: In electroplating using acid baths, organic bath additives which do not readily dissolve are provided by dissolution from carriers coated with a pasty mass of a mixture of the additive and a solvent therefor, swelling and/or thickening agents. The carriers may be perforated plastic discs, Raschig rings, balls or filter discs and may be placed in a column in the bath or an electrolyte circulating pump system or in a dissolving cage in such a circulating system after the dirt-catching filter.  The additives may be compounds including N- and S-containing groups as in the parent Specification and may be made into a paste with carboxymethylcellulose for use in Cu and Zn baths containing an addition product formed from ethylene oxide and coconut fatty alcohols, or may be blood albumen made into a slurry with carboxymethyl cellulose and ammonia for a simple acid copper bath. In other examples the additive is made into a paste with polyvinyl acetate and ethanol, while additives formed by reacting diethylenetriamine or dipropylenetriamine with epichlorhydrin, carbon disulphide, propane sultone and benzoyl chloride for Cu and Sn baths are also disclosed, such additives being applied to the carriers either by making them brushable with acetone or by forming a paste with carboxymethyl cellulose.ALSO:An aqueous solution of diethylenetriamine and epichlorhydrin are slowly mixed at 100 DEG  C. and then heated under reflux with agitation for four hours whereupon after cooling, sodium hydroxide is added and carbon disulphide is added during gentle heating at 45 DEG  C.  The mixture is then heated at 65 DEG  C. with agitation, cooled, unreacted carbon disulphide vacuum distilled off, ethanol added warmed at 65 DEG  C., and a mixture of propane sultone and benzoyl chloride added, followed by boiling under reflux.  The mixture separates into two layers and the lower layer remaining after pouring off the upper layer is washed with acidified water and acetone leaving a yellow viscous mass.  A similar process using dipropylenetriamine instead of diethylenetriamine yields a bright yellow powder condensation product.  The copper salt of this product may be mixed with aqueous carboxymethyl cellulose solution to form a paste.
Patent GB-534303-A (GB)
Title: Improvements in and relating to blinds
IPC: E06B9/386
Filed: 1939-11-18
Abstract: 534,303. Venetian blinds. PERSSON, E. S. Nov. 18, 1939, No. 30332. Convention date, Nov. 19, 1938. [Class 20 (iii)] The laths 1 of a venetian blind are connected together by displaceable strips the centre 4 of a strip being retained in a holder 7 pressed out of the lath, and the narrower parts parts 5 being retained in similar holders 8 on an adjacent lath. When the laths are separated, the strips slide in their holders 8 until the wider ends 6 contact with the holders. When the blind is drawn up, the strips lie substantially in the planes of the laths. The Specification as open to inspection under Sect. 91 (3) (a) described also the use of non- flexible material jointed together in place of flexible strips ; this subject-matter does not appear in the Specification as accepted.
Patent GB-760296-A (GB)
Title: Improvements in or relating to thermally operated control systems for heating vessels
IPC: G05D23/275
Filed: 1954-10-21
Abstract: 760,296. Automatic temperature control systems. COLLIER, R. Feb. 21, 1955 [Oct. 21, 1954; Dec. 20, 1954], Nos. 30338/54 and 36745/54. Class 38 (4). [Also in Groups XI and XXXVII] A thermostatic control for cooking or heattreating vessels 3 heated by gas or an electric hot-plate 1 with sheathed heating elements comprises a switch with one or more bimetallic elements 8 riveted on a metal plate 9 spring- pressed against the wall of the vessel 3 when placed on the heater, the plate 9 being placed in a central aperture in the heater and protected by cylindrical heat shields 12, 13, 24 from heat from the heater. A transformer 16 supplies low voltage to the temperature-sensitive switch and to a relay 5 operated thereby to control through contacts 6 current supply to the heater. Four bimetal strips 8 for operation at different temperatures are mounted on the copper plate 9, which forms the top wall of a switch housing 12 of insulating material. A contact 10 on the end of each strip 8 moves to and from a contact on a metal screw 11 in the switch housing 12. A multi-position control switch 15 has an " off " position and four positions for connecting one of the bimetal strips 8 into circuit with the heater 1, which is connected to mains supply conductors 4 through a low-voltage relay 5 having high voltage contacts 6 and a low voltage coil 7 fed from a step-down transformer 16. A signal lamp 21 is connected across the coil 7 and indicates activity of the heater. The inner metal heat shield 13 is urged upwardly by a leaf-spring 14; and when a vessel 3 is removed from the hot-plate, a copper tongue 30 forming an extension of the plate 9 and normally below the heater 1 is raised with the plate 9 to contact the heater 1, which is thus maintained at a temperature corresponding to that of whichever bimetal strip 8 is in circuit. A corrugated metal strip forming a heat radiator is attached to each bimetal strip 8 at or adjacent its contact. A single bimetal strip 8 may be used in combination with a screw for adjusting its operative temperature, and this screw may be adjusted from a remote control knob by a flexible shaft. The outer metal heat-reflective shield 24 may have a ring of perforations 26 to allow passage of cooling air. A heat reflector 27 is provided and hot air may escape at 28 around the base of the vessel. An air gap may be formed between the metal plate 9 and the switch housing 12. The switch 6 may entirely cut off current to the heater, or may reduce the power supplied thereto. The switch 15 may have a sixth position (not shown) for by-passing the bimetal strips 8. when continuous full power is required, e.g. for deep frying. For gas-heating, a solenoidoperated gas valve replaces the relay 5.
Patent GB-1091617-A (GB)
Title: Improvements in or relating to a core support for a centrifugal casting mould for casting pipes having a socket, and mould provided with said support
IPC: B22D13/10
Filed: 1966-07-07
Abstract: 1,091,617. Centrifugal casting-machines. CENTRE DE RECHERCHES DE PONT-AMOUSSON. July 7, 1966 [July 26, 1965], No. 30561/66. Heading B3F. [Also in Division B5] The core N of a centrifugal casting mould M for casting pipes T having end sockets 5 is supported on a cup member S that is withdrawn from the pipe T at the end of a casting operation by extending a jack V and then moved out of line from the pipe T by extending another jack W that rotates a handling arm B about a shaft D and enables the finished pipe to be withdrawn and a new core attached to the cup member. The core N is located in the cup member S by an extension (11) (Fig. 3, not shown) and is clamped to the mould M by means of flanges (10) being held between a face (8) of the mould and a face (14) of the cup member S. The cup member S is pressed into the mould by means of a locking ring 18 engaging in a recess 17 and being provided with a supply 23 of compressed air that is forced out through outlets (24) against a friction ring (25) so that the locking ring is held stationary whilst the cup member S rotates with the mould M. Pivot connections 26, 27 are provided between a stirrup member E and the locking ring 18 and between the stirrup member E and the handling arm. The core support may be used for producing cast iron, plastics or cement based material pipes and the core may be of plastics, elastic or metallic material.
Patent GB-984286-A (GB)
Title: Voltage responsive variable capacitance circuit
Inventor: ANDREWS STUART ALEXANDER
IPC: H03C3/22
Filed: 1961-08-24
Abstract: 984, 286. Measuring strain electrically. BRISTOL SIDDELEY ENGINES Ltd. Aug. 24, 1962 [Aug. 24, 1961], No.30601/61. Drawings to Specification. Heading G1N. [Also in Division H3] In frequency modulating an oscillator, a capacitance diode is shunted by a Zener diode of temperature dependent breakdown voltage to compensate for temperature changes. The diode modulating voltage may be obtained from a bridge having a strain gauge in one arm so that an encapsulated system may transmit VHF/FM telemetering information from a turbine rotor to the stator, through a casing window in the rotor. Electrical power may be transmitted to the rotor from a 200 mc/s oscillator by capacitive coupling between closely adjacent rings on the stator and rotor, the received oscillation being then rectified and smoothed to provide a D.C. power supply. Specification 984, 287 is referred to.
Patent GB-1105028-A (GB)
Title: Production of cast iron
Inventor: HALL CLIFFORD
IPC: C21C1/10
Filed: 1965-07-19
Abstract: In a process for the production of cast iron a body is placed in the mould before pouring and which comprises an innoculant for the iron dispersed in a medium of wax or wax-like substance. The innoculant may be ferrosilicon which is dispersed in stearic acid or other waxy material to form the body for insertion into the mould. Additionally, a substance, such as hexachlorethane, may be included in the composition of the body and which generates gas on heating. Examples of the proportions of the constituents are given in the Specification.  Suitable waxes include, montan wax, carnauba wax, bees wax, paraffin wax or fatty acids such as stearic acid or stearic alkyl esters.