baber/WOPTO huggingface dataset:
Patent GB-147484-A (GB)
Title: Improvements in appliances for grinding or polishing optical glasses
IPC: B23Q35/10
Filed: 1920-07-08
Abstract: 147,484. Zeiss, C. [Firm of]. April 20, 1915, [Convention date]. Lenses and curved surfaces of mirrors, grinding and polishing.-In apparatus for grinding optical glasses for the production of non-spherical surfaces of revolution, a shaft c is mounted in bearings on a body band carries at one end a plate c' and at the other end a pulley c<2>, whereby the shaft and the plates are oscillated over an angle of about 60 degrees. On the body b is mounted a circular cylindrical surface b<1> having its axis parallel to, and below the axis of the shaft c. In contact with the surface b<1> is a second circular cylindrical surface d<1> formed on a body d journaled in bearings c<3> on the plate c<1>, the axes of the surface d' and of the bearings being parallel and extending perpendicularly to the axis of the shaft c ; the surfaces d', b<1> are held in contact by springs c<4>. On the upper part of the body d is a surface d<2> in the form of a cylinder derived from the involute of a circle, and on this surface rests the plane surface e<1> of a member e slidably mounted in guides c<5> on the plate c<1>, the surfaces e<1>. d<2> being held in contact by the weight of the member e. The member e carries another member f adjustable thereon parallel to the direction of sliding of the member e and carrying a grinding-disk g adapter to be rotated by a flexible shaft g<1>. The glass piece k to be ground is mounted on a carrier i rotated through bevel-wheels l by a shaft m. In operation, the grinding-disk oscillates across the glass piece and rises and falls through the interaction of the various curved surfaces, such rising and falling taking place in a plane containing the axis of rotation of the glass and in the direction of a line intersecting the axis of the shaft c. The grinding-disk thus describes on the glass a meridional curve of a non-spherical surface.
Patent GB-147490-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B62M7/12
Filed: 1920-07-08
Abstract: 147,490. Gibson, A. H. C. Dec. 27, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Frame components, sections and forms of. -The frame of a motor-cycle comprises a tank member 15 through which the steering-head tube 38 passes, and an engine casing 23 to which the engine cylinder 60 is bolted. A small oil-tank 40 closes the end of the main petrol-tank 15. The engine-shaft 54 extends through the road wheel to a bearing 70, which is carried by a hinged arm 71. The cycle frame and the engine are supported by the road wheel through a pair of friction rollers 74, which run on the rim 82 of the road wheel and upon which bears a roller 75 on .the engine-shaft.
Patent GB-737429-A (GB)
Title: Improvements relating to attrition-resistant alumina gel-containing catalysts of increased longevity, to methods of producing the same, and to catalytic processes employing the same
IPC: B01J37/00
Filed: 1953-07-15
Abstract: An alumina gel-containing catalyst of high resistance to attrition is prepared by precipitating aluminium hydroxide from an alkali metal aluminate solution by reacting it with a mineral acid, filtering and washing the precipitate, mixing the filter cake with hydrochloric or nitric acid in an amount of 0.1-1 mol. of acid per mol. of Al2O3 to form a paste, and incorporating a compound of a polyvalent metal of the fifth, sixth or eighth group of the periodic system into the paste, which is then dried and heated to convert the compound to an oxide; the amount of oxide in the finished catalyst is 2-30 per cent by weight.  Preferably the filter cake contains 10-20 per cent solids.  Tables give the attrition resistance, surface area, and pore volume of the catalysts compared with other alumina-containing catalysts and catalysts in which the alumina has been treated with organic acids.  A graph shows that attrition resistance is greatest when the mol. ratio of acid to Al2O3 is about 0.4.  In examples ammonium molybdate solution is added to the paste which may be spray dried and calcined in a rotary kiln.  Reference is also made to catalysts containing oxides of chromium, tungsten, vanadium, cobalt, nickel, platinum and palladium.  The catalyst is useful in the hydroforming and dehydrogenation of petroleum hydrocarbons by a fluidized process.  Specification 686,495 is referred to.
Patent GB-381593-A (GB)
Title: Improvements in or relating to wander plug and like terminals
IPC: H01R13/05
Filed: 1931-07-08
Abstract: 381,593. Plug couplings. BELLING & LEE, Ltd. and LEE, E. M., Queensway Works, Ponders End, Middlesex. July 8, 1931, No. 19683. [Class 38 (i).] A resilient pin 11, Fig. 1, of split-pin form is inserted through an opening 15 in a boss 14, the eye 12 of the pin being located in an enlarged recess 16. The eye 12 projects above the boss sufficiently to clamp a lead 22 between it and a cap. 20 that is screwed to the boss. A washer 18 may be interposed. In a modification, Fig. 4, the legs 33 of the split pin are passed through a disc 36 one on each side of a cross-bar 38 that is depressed so that a washer 35 can be placed on the disc, between which and a cap 30 the lead is clamped. The cap and boss may be of insulating material and the latter may be extended to shroud the pin. Specification 329,465, [Class 38 (i), Electric couplings &c.], is referred to.
Patent GB-712634-A (GB)
Title: Improvements in or relating to plastic compositions
IPC: C08L91/00
Filed: 1951-08-22
Abstract: A waterproof, electrically-insulating composition suitable for protecting high tension parts comprises a non-drying oil, a resinous material dissolved in the oil and a filler wherein the filler is substantially completely saturated by the oil and the resinous material consists at least in part of a resin derived from pine wood which is substantially insoluble in cold petroleum hydrocarbons and the resinous material and the oil constituting together between 25 and 45 per cent. of the composition by weight. Preferably the filler is partly of a fibrous nature such as asbestos and partly non-fibrous such as French chalk.  In examples the composition comprises French chalk, lithopone, asbestos fibre, blown castor oil, “Vinsol” (Registered Trade Mark) resin, with the optional addition of lime hardened rosin. Specification 572,676 is referred to.
Patent GB-939708-A (GB)
Title: Production of ª -hydroxybenzylpenicillin
Inventor: BATCHELOR FRANK RALPH
IPC: C07D499/60
Filed: 1961-06-01
Abstract: a -Hydroxybenzylpenicillin is produced by reacting 6-aminopenicillanic acid with mandelic acid or a salt or derivative thereof at pH not exceeding 9 in the presence of a penicillin amidase enzyme preparation derived from a penicillin amidase-producing bacterium such as Escherichia coli and subsequently recovering the a -hydroxybenzyl-penicillin. Mandelic acid derivatives which may be used include mandelamide, mandelic acid esters and a -hydroxyphenol-acetylthioglycollic acid.
Patent GB-1472154-A (GB)
Title: Pyroglutamyl compounds and process for their manufacture
IPC: A61K38/00
Filed: 1975-05-12
Abstract: Novel pyroglutamyl compounds of the formula I <IMAGE> in which X denotes an optionally branched alkyl radical having 2 to 6 carbon atoms or an optionally branched alkyl radical having 2 to 6 carbon atoms which is either substituted in the  alpha -position by a carbamoyl group or in the  omega -position by a carbamoyl group or a carboxyl group, are prepared by reaction of a pyroglutamic acid, which is optionally substituted on the nitrogen by a benzyloxycarbonyl radical, or of a reactive derivative thereof with a primary amine which introduces the group X and subsequent removal of possible carboxyl protective groups. The novel compounds are useful therapeutics for the treatment of psychic disorders, in particular of depressions.
Patent GB-287382-A (GB)
Title: A new or improved lubricator
IPC: F16N17/02
Filed: 1927-07-26
Abstract: 287,382. Steyn, H. P. C. July 26, 1927. Gravity-feed lubricators. - In a lubricator adapted to feed against steam, compressed air, or like pressure, comprising a lubricant container a which is sealed at its upper end and has an outlet c in its supporting stem b controlled by a valve k and in which a separate pressure-equalizing pipe e<1> controlled by a separate valve o communicates with the source of pressure and opens into the upper part of the container above the lubricant, the container is provided with a filling funnel d<1> which communicates with the container through a cock d and which is disposed with its upper edge below the outlet of the pipe e<1> into the container. A relief cock p is fitted in the top of the container. The pipe e<1> may be arranged within the container and communicate with a duct e in the stem b, or may be arranged outside the container. The lower part of the container may be recessed around the top of the outlet c to form a sediment trap.
Patent GB-404343-A (GB)
Title: Improvements in front glasses for vehicle headlamps
IPC: F21V5/00
Filed: 1932-07-14
Abstract: 404,343. Front glasses for vehicle lamps. TALBOT ANTI-DAZZLE CONE, Ltd., 67, Baker Street, and TALBOT, S. E., Crow-steps, Mostyn Road, Merton Park, both in London. July 14, 1932, No. 19926. [Class 75 (ii).] A front glass for a road vehicle headlamp has a central area 6, of which one face is formed with shallow undulations in a horizontal direction, and ribbed areas 9, 10 above and below the central area, so that light rays passing through the central area are projected horizontally and slightly spread, and rays from the bottom area 10 are deflected downwardly and spread to a greater angle than those of the upper area 9. The corrugations 9a of the upper area are sloped downwardly and inwardly. The corrugations 10a of the lower area decrease in depth towards the sides of the glass. The front faces of the upper and lower areas 9, 10 slope downwardly and outwardly, and the front face of the central area may be concave in a horizontal direction. The glass may be used in combination with beam-constricting devices such as concentric rings or slats disposed at or near the front of the lamp.
Patent GB-690684-A (GB)
Title: Improvements in and relating to electric filter systems
IPC: H01P1/202
Filed: 1948-07-27
Abstract: 690,684. Electric filters. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. July 1, 1949 [July 27, 1948], No. 20040/48. Class 40 (viii). [Also in Group XL (c)] In an electric filter system connected between a source and load to pass a band of frequencies but to exclude oscillations of specified other frequencies, one end of a transmission line, whose length is an odd multiple of #2/4, where #2 is the mean wave-length of the pass band, is connected to the network at a point B where the impedance presented to the undesired wave-length #1 is infinite, and the other end of the line is terminated in a structure having an impedance which is a pure resistance equal to the characteristic impedance of the line at #1, whereas it is substantially zero at #2. The structure is formed by stubs S<SP>3</SP> and resistance R<SP>1</SP>. The construction is applied to a receiver R connected by a filter S<SP>1</SP> of the kind described in Specification 659,811 to an aerial RA close to a transmitting aerial whose radiation is prevented from reaching receiver R by the filter. Reflection of transmitter energy would then normally occur at the right-hand end of the filter but the transmission stub according to the invention provides a matched absorbing means for transmitter energy while presenting infinite impedance to the receiver energy. Similar filter means are employed in the feeder to the transmission aerial but with all the #1 and A2 dimensions transposed.
Patent GB-1034280-A (GB)
Title: Improvements in display devices
Inventor: ROBERTSON ALEXANDER HEBENTON
IPC: A47F5/11
Filed: 1964-05-14
Abstract: 1,034,280. Article display cards. STEMBRIDGE THOMPSON Ltd. May 25, 1965 [May 14, 1964], No. 20102/64. Heading A4T. A picture-frame edged, article displaying showcard is provided with at least one flap at each corner with a slot or notch whereby an elastic band engaging two flaps behind the edge holds the edges bent forward from the plane of the card. In a further embodiment, each corner is provided with two flaps engaged by the band.
Patent GB-329881-A (GB)
Title: A new or improved means for hanging picture frames and the like
IPC: A47G1/16
Filed: 1929-07-01
Abstract: 329,881. Fells, G., and Conduit, G. W. July 1, 1929. Pictures, hanging on walls. - A runner for adjusting picture cords comprises a strip of material with' three spaced holes therein, one of which lies in a bent end of the strip. The cord passes from the bent end of the runner through one picture frame eye y, back through the remaining holes in the runner, through the second picture frame eye y<1> and back to the first eye, forming the suspension loop. Specification 5502/97 is referred to.
Patent GB-688495-A (GB)
Title: Improvements in or relating to launching and lowering gear particularly for ships lifeboats
Inventor: MOORE WALTER GORDON
IPC: B63B23/04
Filed: 1950-08-15
Abstract: 688,495. Davits. MAREPA TRUST, Ltd. June 20,1951. [Aug. 15, 1950] No. 20178/50. Class 115. In a gravity davit comprising a stand 10, a davit arm 13, a rear link 16 pivotally connected at 17 to a rearward part of the stand and pivotally connected at 20 to a rearward part 14 of the davit arm, and a front link 18 pivotally connected at 19 to a forward part of the stand and pivotally connected at 21 to a forward part of the lower end of the davit arm, the arm is swingingly suspended from the stand by the links, the rear link 16 being longer than the front link 18.
Patent GB-606187-A (GB)
Title: Improvements in or relating to substituted diamines
IPC: C07D213/74
Filed: 1945-05-17
Abstract: N - b 1 - Dimethylaminoethyl - N - p - methoxy - benzyl-a -aminopyridine, which has powerful anti-histaminic properties, is manufactured by (a) condensing a -p-methoxybenzylaminopyridine, or its sodio derivative, with a tertiary amine of the formula <FORM:0606187/IV(b)/1> (wherein X represents a halogen atom, e.g. chlorine, a hydroxy group or a sulphuric or sulphonic acid ester radical); or (b) condensing N-b 1-dimethylaminoethyl-a -aminopyridine, or its sodio derivative, with a p-methoxybenzyl halide (e.g. chloride) or alcohol, or with sulphuric or sulphonic esters of the alcohol. An example of each of these processes is given.  Specification 606,181 is referred to.  N-b 1-Dimethylaminoethyl-a -aminopyridine is obtainable by condensing a -aminopyridine with 1-dimethylamino-2-chloroethane in the presence of sodamide, and is converted into its sodio derivative by the action of sodamide in xylene.  The Specification as open to inspection under Sect. 91 comprises also the manufacture of N-b 1-dimethylaminoethyl-N-p-methoxybenzyl-a -aminopyridine by condensing an a -halogenopyridine with N : N - dimethyl-N1-p-methoxybenzylethylenediamine, and by the use of appropriate starting materials in the alternative methods described in Specification 606,181, as open to inspection.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1284340-A (GB)
Title: Manufacture of isocyanates
Inventor: BROOKS MARTIN FREDERICK
IPC: C08G18/76
Filed: 1970-04-28
Abstract: 1284340 α-Isocyanatoalkyl-arenes IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1971 [28 April 1970] 20365/70 Heading C2C α - Isocyanatoalkyl-arenes containing one or more isocyanatoalkyl groups are prepared by reacting an α-haloalkyl-arene with an alkali metal, ammonium, or alkaline earth metal cyanate at elevated temperature in an aromatic nitro compound as the sole solvent. The α- haloalkyl-arene may have the general formula wherein n is an integer from 1 to 4 and each R independently represents hydrogen on an alkyl group having 1 to 4 carbon atoms, the arene nucleus is preferably a benzene ring which is preferably substituted in at least one position ortho to the CR 2  groups. The aromatic nitric compound is preferably a mononitro compound, preferably, nitrobenzene. As catalysts there may be used iodine, iodine monochloride, bromine, or mixtures thereof.
Patent GB-938167-A (GB)
Title: Means for retaining nuclear fuel elements at one end of a reactor duct
Inventor: LAURENT NOEL
IPC: G21C19/02
Filed: 1962-05-28
Abstract: 938,167. Nuclear reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 28, 1962 [June 6, 1961], No. 20470/62. Class 39 (4). A retaining device located at one end of a nuclear reactor duct for preventing back movement of fuel elements after they have been inserted into the duct past the device comprises a series of latching means formed by detents carried by resilient elements which urge them towards the axis of the duct and into the path of the fuel elements as they are inserted, each detent having a shoulder adapted to abut under the pressure of the elements in the duct against a fixed abutment. Referring to Fig. 1, the detents 7 are formed by the ends of tongues 6 attached to a base member 4 and surrounding the extension 5 of a fuel element supply duct 3. The detents 7 have internal faces in the form of inclined ramps 71 which are engaged by a fuel element D as it advances in the direction of the arrow F 2  and are thus pushed back, resiliently resuming their initial position when the fuel element D has passed. Each fuel element D has a rear cap 10 of a diameter slightly smaller than that of the adjacent portion 9, thus providing an annular shoulder which engages the ends 8 of the detents 7. Should the train of elements D exert a rearward thrust, due for example to the coolant flowing through the pressure tube B in the direction of the arrow F 2 , rearward shoulders 7 2  of the detents 7 bear on the end face 51 of the extension 5 of the supply duct 3. A gap J between the base member 4 and the facing shoulder 31 of the duct 3 ensures that the tongues 6 are relieved from the thrust of the elements.
Patent GB-1383588-A (GB)
Title: Tyre for an automative vehicle
IPC: B60C27/00
Filed: 1972-05-03
Abstract: 1383588 Vehicle tyre anti-skid devices F HUTTNER 3 May 1972 [4 May 1971] 20519/72 Heading B7C A vehicle tyre is provided with anti-skid means consisting of one or more studs 12c attached to the core 5 of a Bowden cable 4 and movable in a groove 1 in the tyre tread between an in-use position in which they project beyond the tread and an out of use position in which they lie below the tread, the outer sheath of the cable being located between two flanges 8 and 9 bolted to the wheel on which the tyre is mounted and the core being biased by a spring 7 so that the studs occupy their out-of-use positions. The free end of the core passes through a ring 14 and is attached to a disc 13 which when rotated moves the core against spring 7 and hence the studs to their in use positions. Releasable locking means are provided to hold the disc. The disc may be replaced by a drum around which the core passes when rotated by a crank to move the studs to their in-use positions. Mechanical, other than crank, hydraulic, pneumatic or electrical means may be used to rotate the drum or disc and the locking means be operable from within a vehicle on which the tyre is mounted. In a modification, Fig. 9, the spring 7a is located with the tyre and is fixed to a cable 19 moulded in the tyre adjacent its bead, the Bowden cable being replaced by a cable 20 movable in a guide 21 within the tyre sidewall. The groove and studs may be of any complementary cross-section and the groove at one end thereof covered to form a tunnel in which the studs are locaetd in their out-of-use positions. A run-up surface 3 may be provided upon which the studs move between their two positions, the grooves provided with steel, rubber or plastics inserts which are harder than the material of the tyre tread, and the studs made of a metal material or have metallic material embedded therein. More than one cable 4 or 20 may be provided.
Patent GB-1170797-A (GB)
Title: Improvements relating to Manure Tankers
Inventor: TOMLINSON JAMES WILLIAM
IPC: A01C23/04
Filed: 1967-05-03
Abstract: 1,170,797. Distributing liquid manure. HYDE AGRICULTURAL IMPLEMENTS Ltd. 3 April, 1968 [3 May, 1967], No. 20526/67. Heading AID. [Also in Divisions B8 and F1] A trailer has a manure tank 10 on a chassis 11 provided with a feed auger 13 within a housing 14 to discharge through an opening 12 to an impeller 17 in a spreader housing 16. The auger 13 has a chain drive from a shaft 18 which is also provided with a universal coupling 23 by which it can drive an associated feed auger 24 provided with a stand 25 by which it is supported in a reservoir 26 from which manure is raised through a hose 27 to fill the tank 10. The shaft 18 may be driven from the power take off of a tractor, an engine on the tanker chassis or by a hydraulic motor driven by the tracter system. The tank may or may not be pressurised. The auger 24 may be transported with the tanker.
Patent GB-1540344-A (GB)
Title: Percussive devices
IPC: E21B4/14
Filed: 1977-05-17
Abstract: The percussion drilling machine has a housing (1) into which a reciprocating percussion head (2) is inserted. The percussion head (2) forms a front working chamber (4) in the housing (1) and has a hollow space which forms the rear working chamber (3), which is connected to the front working chamber (4) via slots (5). By means of compressed air fed to the percussion head (2) via a connection piece (6), the percussion head (2) performs a reciprocating movement and exerts blows on the housing (1). When the hose (17) supplying the compressed air is pulled, a bush (11) provided with slots (13) controls the change-over of the drilling machine from forward motion to reverse motion. <IMAGE>
Patent GB-460149-A (GB)
Title: Improvements in gearing for airscrews
IPC: B64D27/00
Filed: 1935-07-19
Abstract: 460,149. Air - screws. PARAVICINI, T. P. DE. July 19, 1935, No. 20601. [Classes 4 and 114] Variable-pitch airscrews driven through multiple speed gear boxes are controlled by a single lever to provide in one position high speed and fine pitch and in another position a lower speed and coarser pitch. The epicyclic gearing includes an annulus wheel B<1> driven from the crank-shaft and a series of double planet wheels B<2> carried in a frame B3 rigid with an axial extension B<4> of the air-screw hub A<1>. The series of planet gears mesh with sun wheels C, C<2> respectively on sleeves C<1> and C<3> which are adapted to be clutched to the fixed casing D by clutches D<1>, D<2> movable into position by a ring D<3> which is actuated by a ring E. which through pivots and levers is movable by a piston K in a cylinder K<1> which is coupled by pipes J<3>, G<4> through a control valve H<1> with a pressure supply. Branch pipes G<3>, J<2> pass to compartments in the hollow shaft and thence to a cylinder F<3> coupled to the blade roots for varying the pitch. The valve H<1> is controlled from the cockpit through levers H<2>, H<3>.
Patent GB-148793-A (GB)
Title: Method and apparatus for producing hot blue flames
IPC: F23D14/48
Filed: 1920-07-10
Abstract: 148,793. Bornkessel, P. March 23, 1916,. [Convention date]. Void [Published under Sect. 91 of the Act]. Perforated-tube burners; burners, mounting. - Non-atmospheric gas 'burners for cooking, heating, smelting, treatment of. glass and ceramic ware, &c. are moved rapidly so as to absorb sufficient air to. produce a blue flame. Fig. 1 shows a chamber a rotatably mounted on a pointed gas pipe b and carrying perforated burner tubes d. The rotation of the burner tubes- and chamber a may be effected either mechanically or by the reaction of the issuing gas.
Patent GB-320150-A (GB)
Title: Improvements in and relating to rotary pumps
IPC: F04C2/12
Filed: 1929-01-22
Abstract: 320,150. Othen, T. B. Jan. 22, 1929. Movable-abutment type; discharge and suction pipes and passages for pumps; materials, special. -A rotary pump of the type having two externally geared rotary elements a, b each having two cylindrical portions g, i of different radii is provided in the inlet and outlet with deflectors q, r for the fluid current. The outer cylindrical surfaces g of the rotors may have a lead coating t.