baber/WOPTO huggingface dataset:
Patent GB-1235359-A (GB)
Title: Polybenzoxazole products and elements and a method for their preparation
IPC: C08L75/00
Filed: 1968-06-05
Abstract: 1,235,359. Branched polybenzoxazoles. SOC. ANON FRANCAISE DU FERODO. 5 June, 1968 [5 June, 1967], No. 26830/68. Heading C3R. Branched polybenzoxazoles comprise divalent and trivalent aliphatic or aromatic radicals linked by the group where R 3  is a tetravalent aromatic radical; the ratio of divalent: trivalent radicals is between 1: 1 and 20: 1. They may be obtained by heating the branched alkoxy polyamides described and claimed in Specification 1,235,357 with excess pyridine hydrochloride or a homologue thereof at 180 to 220 C. and then heating above 220 C. to eliminate excess hydrochloride. The hydrochloride may be mixed with the starting materials for the polyamide and the polybenzoxazole prepared without isolating the intermediate polyamide. They may also be obtained from the hydroxy polyamides of Specification 1,235,357 but the polymers obtained by this procedure are the subject of Specification 1,235,358 and are disclaimed in the present Specification. A filler, e.g. silica, quartz powder or BaSO 4  may be incorporated in the polymer. The polymers claimed in Specification 1,122,925 are disclaimed.
Patent GB-284401-A (GB)
Title: Method of resolving aqueous emulsions of tar
IPC: C10C1/00
Filed: 1926-10-27
Abstract: 284,401. Johnson, B. Oct. 27, 1926. Tar oils, recovering and purifying.-Aqueous emulsions of tar are broken by adding a carboxylic acid which is soluble in the tar but not in water. Acids specified are resin acids, oleic acid, stearic acid, palmitic acid, arachidic acid, linolenic acid. For example 2, lb. of oleic acid is added to 100 lb. of a gas-works tar emulsion containing about 49.5 lb. of water and 1 lb. of ammonia, and agitated at 60-70‹ C. until dissolved. The mixture is centrifuged to separate the water, or is left standing at the same or higher temperature until the water separates an upper layer. Alkali in sufficient quantity to make the separated water alkaline may be first added to tar emulsions not containing ammonia.
Patent GB-710141-A (GB)
Title: Improvements in scraper buckets
Inventor: THOMPSON JAMES STEWART
IPC: E02F3/60
Filed: 1951-11-16
Abstract: 710,141. Scraper buckets. COAL INDUSTRY (PATENTS), Ltd. Nov. 17, 1952 [Nov. 16, 1951], No. 26898/51. Class 68(1) An open bottom scraper bucket comprises two side plates 1, 2, the lower edges of which are upswept. at 1A. The plates 1, 2 are braced apart at the front by a pipe 3 on which is mounted a lug 4 to which may be secured a drag line 14 and a ram 5A, 5B, whilst towards the rear they are secured apart by a scoop member in the form of a plate 6. Lugs 9 are provided on the plates 1, 2 for a further drag line 13, and the plate 6 is fitted with a weighted canopy 7. The weights 8 on the canoby are of such a magnitude and are so disposed that a pull on the rope 13 will cause the bucket to rock about the line of junction of the upswept edges with the remaining edge portions of the side plates to rest on said upswept edge portions, and vice versa, on a pull on the rope 14. The plane of the scoop plate is at an angle of between 20 degrees and 60 degrees to the plane containing those portions of the edges of the side plates in contact with the ground when a pull is exerted on the rope 14. In a second embodiment the plate 6 no longer has a canopy but is provided with a wedge-sectioned outwardly-curved blade.
Patent GB-884498-A (GB)
Title: Improvements in or relating to nuclear reactors
IPC: G21C15/26
Filed: 1959-08-06
Abstract: 884,498. Nuclear reactors. COMMISSARIAT A L'ENERGTE ATOMIQUE. Aug. 6, 1959 [Aug. 14. 1958], No. 26899/59. Class 39(4) A boiling water reactor comprising fuel elements surmounted by vapour separators and surrounded by a reflector formed by the cooling water is provided with a barrier cylinder surrounding the cooling channels which extend between the fuel elements and the separators, the cylinder being provided with openings which control the flow rate of water issuing from the separators towards the reflector, the cylinder maintaining a water level in the reflector sufficiently low to suppress natural circulation of the water so that the circulation rate is not affected by tilting or vertical acceleration of the reactor and sufficient water is retained above the reactor core to protect the space above the core. In Fig. 1 the fuel bars 8 are contained in tubes extending between grids 9, 10 and surrounded by water flowing to outlets 6; the tubes extend above the grid 10 to vapour separators 12, and this part of the tubes is surrounded by a barrier cylinder 19 which regulates the flow of water from the separators to the surrounding reflector water layer. The apertures in the wall of the barrier cylinder are preferably larger or more numerous towards the top to reduce fluctuation in the water level if the reactor is tilted or subjected to vertical accelerations as might occur on a ship.
Patent GB-771184-A (GB)
Title: Improvements relating to sidecars
Inventor: KOCHNER HERBERT
IPC: B62K27/16
Filed: 1955-09-21
Abstract: 771,184. Vehicle hoods. STEIB, J., [trading as STEIB SPEZIALFABRIK FUR SEITENWAGEN, J.]. Sept. 21, 1955, No. 26946/55. Class 108(1). A hood for a side-car comprises a transparent top section 1, which may have a sliding roof 8 and ventilators 9, hinged along one edge to the body 6 and having a pivoted flap 4 extending well below the upper edge of the sidecar body.
Patent GB-1136882-A (GB)
Title: Pm/am multiplex communication
IPC: H04L27/36
Filed: 1966-06-16
Abstract: 1,136,882. Data transmission systems. RADIO CORPORATION OF AMERICA. 16 June, 1966 [1 July, 1965], No. 26963/66. Heading H4P. In a binary transmission system the evennumbered bits form a first signal which amplitude modulates a second signal derived from the odd-numbered bits. The first signal is a polar signal in which each bit has twice the bit period of the input binary data. The second signal, which has bits of like duration, is of the form in which a Mark bit is represented by a steady potential throughout the bit and a Space bit by a potential which reverses halfway through the bit. The signal transmitted has four possible amplitude levels and zero average D.C. level. The transmitter and receiver are described with reference to block a digram circuits.
Patent GB-814295-A (GB)
Title: Novel chromium oxide catalyst and method of preparing and utilizing the same
IPC: C08F10/00
Filed: 1955-09-21
Abstract: Catalysts which may be used for polymerizing olefines or dehydrogenating paraffins, are made by mixing chromium oxide with an oxide of Al, Si, Ti, Zr or Fe and agitating the powdered mixture while heating at a temperature of 200 DEG  to 374 DEG  F. for at least 5 minutes, and preferably from 30 minutes to 50 hours. Agitation may be effected mechanically or by fluidizing the mixture preferably with an oxidizing gas.  The product is then submitted to a further heat treatment at 650 DEG  to 1000 DEG  F., ground to 20/50 mesh, an organic binder added, formed into pellets and ignited.  To the mixed oxides, promotors may be added, e.g. the oxides of Be, Mg, Sr, Cu, or KOH, and incorporated in the form of oxides, or as salt solutions forming oxides on heating. Alumina in the form of ground bauxite, alumina gel, or alumina hydrate is the preferred oxide to be added to the chromium oxide which may be at least partly in the form of the trioxide.  The alumina may be pre-treated with H.F. Specifications 790,195, 790,196, 804,175, [Group IV (a)], 804,641, 804,642 and U.S.A. Specification 2,606,159 are referred to.ALSO:Olefines are polymerized by a catalyst made by mixing chromium oxide, preferably the trioxide, with an oxide of Al, Si, Ti, Zr, or Fe and agitating the finely powdered mixture while heating at a temperature of 200 DEG  to 374 DEG  F. for at least 5 minutes, and preferably 30 mins. up to 50 hours.  Agitation may be effected mechanically or by fluidizing the mixture preferably with an oxidizing gas.  The product is then re-heated to 650 DEG  to 1000 DEG F., ground to 20/50 mesh, an organic binder added, formed into pellets and calcined.  To the mixed oxides, promotors may be added, e.g. the oxides of Be, Mg. Sr, Cu or KOH.  The alumina used may be pre-treated with HF.  The final product contains about 15 to 45 per cent of chromium oxide, some part of which is in the form of the trioxide.  1-Olefines are treated containing up to 8 C atoms and no branching nearer than 4-position, e.g. ethylene, propylene, 1-hexene, 1-butene, and 1-pentene.  Inert hydrogenation solvents may be used, and polymerization effected at 1500 DEG  to 450 DEG  and at 100 to 700 p.s.i.  Specifications 790,195, 790,196, 804,175, 804,641, 804,642 and U.S.A. Specification 2,606,159 are referred to.
Patent GB-1376834-A (GB)
Title: Flame retardant composition
IPC: C08K5/524
Filed: 1972-06-09
Abstract: 1376834 Organopolysiloxane composition GENERAL ELECTRIC CO 9 June 1972 [17 June 1971] 26978/72 Heading C3T A curable organopolysiloxane composition having improved flame retardancy comprises (a) 100 p.b.w. of an organopolysiloxane gum in which the organo groups are selected from methyl, aryl, haloaryl and vinyl radicals, the aryl and haloaryl radicals comprising 0-35 mole per cent of said organo groups and the vinyl radicals comprising 0-2 mole per cent of said organo groups, there being from 1À98-2À05 organo groups per silicon atom; (b) a platinum or platinum containing material in an amount not greater than 250 p.p.m. by weight based on the gum; (3) at least one organophosphite in an amount not exceeding 10 p.b.w. per 100 p.b.w. of the gum selected from trialkyl and tri-(haloalkyl) phosphites, dialkyl and dihaloalkylphosphites, triaryl and tris-(haloaryl) phosphites, bis-aryl and bis-haloaryl phosphites and bis and tris-alkenyl-phosphites. Optional ingredients include an organic peroxide or perbenzoate curing catalyst; a finely divided non-alkaline inorganic filler preferably in amounts of 10-300 p.b.w. per 100 p.b.w. of gum, such as silica aerogel, fume silica, ground quartz and finely divided silica treated with an organosilicon material. Up to two-thirds of the total silica filler may be replaced by carbon black, titanium dioxide, zinc oxide or diatomaceous earth. The filler may also be a residually non-alkaline Group II metal oxide. Suitable platinumcontaining materials include platinum-on-charcoal, -on-alumina, -on-silica gel or -on-asbestos, chloroplatinic acid, (PtCl 2 .olefin) 2 , (HPtCl 3 . olefin), (PtCl 2 .C 3 H 6 ) 2 , a complex formed from chloroplatinic acid and an alcohol, or a complex (X) formed by reacting H 2 PtCl 6 .4H 2 O with tetramethyl tetravinyl-cyclotetrasiloxane in the presence of NaHCO 3  in ethanolic solution. In Example 1 a rubber is prepared by mixing two compounded gums each comprising several dimethylpolysiloxanes most of which contain minor proportions of vinyl and/or phenyl groups, hexamethyl-disilazane, a rare earth octoate, a methoxy-terminated polydimethylsiloxane, fumed silica and diatomaceous earth, the first gum additionally comprising vinyl triethoxysilane, and water and the second gum additionally comprising a silanol-terminated polydimethylsiloxane fluid, titanium dioxide, dichlorobenzoyl peroxide, triphenyl phosphite and the platinum complex (X) described above. The mixture is press-cured into sheets.
Patent GB-209196-A (GB)
Title: Improvements relating to wheeled trucks
IPC: B62B1/18
Filed: 1922-10-06
Abstract: 209,196. Macaulay, E. J. Oct. 6, 1922. Golf-club carriers.-A self-supporting and portable wheeled truck or carrier comprises a pair of wheels 9 mounted on an axle which is pivotally connected to the body part 1, 2 by a pair of side frames 7. Fig. 2 shows the carrier in wheeling position. A loop 11 is provided for slinging the carrier if desired. In a modification, the wheels 19, Fig. 5, are mounted on an axle 18 carried by side plates 17 pivotally connected at 15 to the body part. A lever 21 pivoted to a bar 20 embraces, by means of a slot 23, the wheel axle and is used to turn the truck from the erect position shown in Fig. 5 to the wheeling position.
Patent GB-1037217-A (GB)
Title: Hydraulic transmission systems
Inventor: HARBIDGE JOHN
IPC: B60K17/10
Filed: 1963-07-09
Abstract: 1,037,217. Hydrostatic transmissions. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug. 18, 1964 [July 9, 1963], No. 27087/63. Heading F2D. In an hydrostatic transmission for a vehicle and comprising an engine-driven swash plate pump 12 coupled to a similar type motor 13, a control is provided for varying the capacity of the pump to maintain a constant engine torque, together with mechanical means for modifying the action of the control when the pump delivery is below a predetermined value in order to prevent excessive pump pressure. As shown, the pump and motor swash plates 17, 18 are actuated by hydraulic servo piston units 19, 20 connected to a selector valve 14 under the joint control of a forward and reverse hand lever 15 and a throttle control pedal 16. Hand lever 15 is connected to a horizontal link 39, the end of which carries a roller 40 mounted between a transverse plate 41 and a centrally pivoted member 37 actuating servo control valve spools 35, 36. The pump swash plate 17 is connected to a follow-up link 49 with a pair of end rollers 50, 51 respectively engaging a plate 42 pivoted to plate 41, and a lever 52 with a loading spring 55 adjustable by a cam 57 operated by the pedal 16. With lever 15 adjusted for forward or reverse travel any movement of pedal 16 results in movement of link 49 and rollers 50, 51 under the control of spring 55, to a new position of equilibrium to maintain substantially constant engine torque. Normally under such conditions the pivoted plate members 41, 42 are held in contact by a loading spring 46, but in order to prevent the development of excessive pressure at low pump outputs, the spring 46 is arranged to be inoperative for low swash plate angles so that the members 41, 42 may separate and the system be jointly controlled by both springs 46, 55. In addition, a valve 59 operated by a plunger 60 connected to the pump swash plate ensures that no adjustment of the motor swash plate may be made until the pump is operating at maximum stroke. In order to limit the pump stroke to a desired maximum for engine braking, or for use in traffic, a cam and stop mechanism, Fig. 4 (not shown), may be fitted between the member 37 and the pump swash plate 17, the stop when rendered effective preventing the establishment of an equilibrium position corresponding to a pump output in excess of the desired value.
Patent GB-1517605-A (GB)
Title: Electronic clock radio having nap/sleep feature
IPC: G04C23/12
Filed: 1976-06-29
Abstract: 1517605 Electronic clock-radio GTE INTERNATIONAL Inc 29 June 1976 27122/76 Heading G3T In an electronic clock-radio, a NAP function of adjustable period can be used independently of any ALARM function. As shown, the apparatus comprises an integrated circuit clock 20, radio 21 and an interface circuit including a manually operable switch S 3  for selecting SLEEP or NAP functions. With S 3  in the SLEEP position shown, closure of switch S 2  causes the clock output to change state for a given period e.g. 60 minutes during which the radio is on. After this period, the clock output reverts to its original state, to turn the radio off. With switch S 3  in its other (NAP) position, the closure of S 2 , and the subsequent change of state per cent the clock output, turns the radio off for the pre-set period. The period is adjusted by closing switch S 1  until a desired interval is displayed.
Patent GB-806271-A (GB)
Title: Mono-azo dyestuffs of the benzene-azo-benzene series
Inventor: JOHNSON ERIC LESLIE
IPC: C09B29/08
Filed: 1956-09-05
Abstract: The invention comprises dyestuffs of formula <FORM:0806271/IV (c)/1> where X is H, Cl or Br, Y is H, CF3 or alkyl and R is a b -hydroxyethyl or b - or g -hydroxy- or b ,g -dihydroxy-propyl group. They are made in conventional fashion from appropriate diazotized nitranilines and N-oxyalkyl, N-cyanoethyl-anilines. All possible diazo and coupling components are specified and examples provided of the use of certain of them in the production of dyestuffs which dye cellulose acetate rayon in red shades. Fibres of other cellulose esters and polyesters such as polyethylene terephthalate, may also be dyed.  An aqueous dispersed dyeing process is adopted and the presence of a carrier such as o-hydroxydiphenyl, may be an advantage. Specification 447,561, [Group IV], is referred to.
Patent GB-230786-A (GB)
Title: Improvements in or relating to lighting apparatus
IPC: F21S13/00
Filed: 1924-11-13
Abstract: 230,786. Tromelin, O. Muller-. March 14, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Ceiling and like overhead lamps.-In a ceiling or like lamp a bulb d is arranged within a composite reflector which comprises an upper bellshaped opaque reflecting-part a<1> and a lower transparent or translucent part a<2>. The parts a<1>, a<2> may be separate and fitted one against the other or they may be made from a single member by coating the upper part a' with a reflecting metal b protected by a layer of copper applied by electrodeposition preferably in the manner described in Specification 227,088, [Class 41, Electrolysis]. The composite reflector is preferably combined with a further part c which is transparent or translucent and adapted to give a diffused light downwardly and to reflect part of the light upwardly through the lower part a<2> of the composite reflector.
Patent GB-603310-A (GB)
Title: Improvements in loudspeaking intercommunication devices
IPC: H04M9/00
Filed: 1945-10-18
Abstract: 603,310. Telephone systems. SCHUTZ, P. N. Oct. 18, 1945, No. 27308. Drawings to Specification. [Class 40 (iv)] In an interconnection system of the type having a central station able to communicate with any of a number of secondary stations, each of which can communicate with the central station only, provision is made for D.C. calling from the secondary stations, the calling signal comprising the lighting of a lamp in the line circuit and the ringing of an alarm through the operation of a relay common to the calling circuit of all the secondary stations. The reply of the central station disconnects the source of direct current which extinguishes the calling lamp and releases the relay, and also prevents the lighting of lamps included in the line circuits at each secondary station should any other station call while the central station is busy.
Patent GB-1508496-A (GB)
Title: Motor vehicle headlamp system
IPC: B60Q1/14
Filed: 1975-06-27
Abstract: 1508496 Adjusting vehicle headlamps CIBIE PROJECTEURS 27 June 1975 [3 July 1974] 27343/75 Heading F4R [Also in Division H2] In order to provide a less abrupt change in illumination levels when switching between main and dipped beams, the dipped beam of a motor vehicle headlamp has an intermediate dwell position whereby the optical axis is deflected for a limited time by actuating means 28 controlled by extinction of the main beam. The angular deflection about pivot systems 12 is both upwardly and to the side. In one arrangement, as shown, the actuating means 28 comprises an electromagnet 30 which draws a lug 22 away from a stop 20 and so rotates the lamp about the pivots. The lamp position is restored by a spring 24 to give a normal dipped beam when the electromagnet is de-energized. In another arrangement, an electric motor drives a cam with a notched surface followed by a lug on the pivotable lamp (Fig. 2, not shown). Energization of either the electromagnet or motor is effected from a delay circuit with a monostable unit (Fig. 5, not shown) (see Division H2). The headlamp may alternatively be adjusted by an hydraulic drive.
Patent GB-1320072-A (GB)
Title: Preparation of piperidylsteroids
IPC: C07D/
Filed: 1971-04-19
Abstract: 1320072 Preparation of piperidyl steroids OSTERREICHISCHE STICKSTOFFWERKE AG 19 April 1971 [24 April 1970] 27313/71 Heading C2U Steroids of the formula wherein X-Y denotes an unsubstituted 5,6- saturated (5α-H) or unsaturated steroid link, R is H or an acyl radical of an aromatic or aliphatic carboxylic acid and R<SP>11</SP> is an acyl group of a C 1-6  aliphatic carboxylic acid or a benzoyl group are prepared by reacting steroids of the formula in a medium which is at least predominantly aprotic and polar with an alkali metal salt of an appropriate acid to give a steroid of the formula in which R is an acyl group as defined for R and then reducing this with nascent hydrogen or in alkaline solution with a complex hydride of aluminium.
Patent GB-228861-A (GB)
Title: Improvements in and relating to direction indicators for motor cars and other vehicles
IPC: B60Q1/34
Filed: 1924-11-17
Abstract: 228,861. Kortman, G. H. W. Feb. 7, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Road-traffic signals on vehicles.-A signalling arm 1 carries a lamp 4 which is caused to flash during the movement into the horizontal operative position by means of a wiper 6 and contacts 9, and then to remain alight. The shaft 2 of the arm is locked in the extreme positions by means of balls 20 co-operating with recesses in the disc 19 and nut 16, which are then in alignment, and the arm is unlocked by longitudinal movement of the shaft 2 against the action of a spring 13.
Patent GB-408247-A (GB)
Title: Improvements in devices for lubricating roll journals
IPC: F16N7/24
Filed: 1932-10-04
Abstract: 408,247. Lubricating roll journals. DEMAG AKT.-GES., 64. Werthauserstrasse, Duisburg, Germany. Oct. 4, 1932, No. 27484. Convention date, Oct. 5, 1931. [Class 12 (ii).] A lubricating- block 5 for roll journals mounted in a journal housing 1 and pressed by a spring 9 against a roll journal 2, is capable of rocking about an axis which is constrained to movement in a plane at right angles to the direction of adjustment of the roll journal so that it always contacts with the journal in spite of vertical movements of the latter. The back face 6 of the block 5 is cylindrical and fits a recess 7 in a sliding member 8. The block is of V-section, the V-groove 13 being closed at its ends. Lubricant is forced into the groove 13 through a pipe 10 and passages 11, 12. Blocks 5 are applied to both sides of the journal in the spaces between the bearing-blocks.
Patent GB-426649-A (GB)
Title: Improvements in or relating to a process of vulcanising rubber
IPC: C08K5/00
Filed: 1933-10-07
Abstract: Vulcanization of rubber mixes containing sulphur and an accelerator is retarded in the initial stages by the addition to the mix of an aromatic ketone.  Preferably, the ketone possesses the structure <FORM:0426649/V/1> where R is aromatic, and R1 is alkyl or aryl, substituents, if any, being alkyl, or groups containing only carbon, hydrogen and oxygen.  Specified ketones are: acetophenone, benzophenone, o-benzoyl benzoic acid, o-tolyl phenyl ketone, and p-ditolyl ketone.  Examples are given showing the retarding effect when thiazole accelerators, e.g. those described in Specification 366,554, are employed.  Specification 413,282 also is referred to.
Patent GB-383011-A (GB)
Title: Improvements in, or relating to fireproof and soundproof floors, roof flats, and thelike
IPC: E04B5/26
Filed: 1931-10-07
Abstract: 383,011. Floors ; roofs ; hollow blocks. JARVIS, R., 17, Balham Hill, London. Oct. 7, 1931, No. 27844. [Classes 20 (iv) and 87 (i).] Hollow blocks for concrete floors or flat roofs consist of sheet-metal sections bent into triangular form and telescoped into each other to form blocks which rest on the lower flanges of I-section joists to form permanent centring for the concrete. Adjacent folds of one section may be flush-riveted at the top a<1> and left unconnected at the bottom, while the folds of the other sections are riveted at the bottom c<1> and left unconnected at the top, the folds being spaced apart by collars on the rivets, thus enabling a cement-wash to be applied and also providing a space for hookbolts e<1> from which the ceiling is suspended. The ends of the blocks may be chamfered at 70‹ to allow the concrete f<1> to enter and form a key. According to the Provisional Specification the under surfaces of the blocks may be perforated to key with ceiling plaster.