baber/WOPTO huggingface dataset:
Patent GB-733198-A (GB)
Title: Improvements in or relating to synthetic rubber compositions and methods for making the same
IPC: C08K3/04
Filed: 1952-11-03
Abstract: Vulcanizable iso-olefin-multi-olefin copolymers are mixed with an oxycarbon black, i.e. a carbon black containing oxygen on its surface and having a pH below 7, and heated at or above 250 DEG  F. Isobutylene is the specified iso-olefin while butadiene, isoprene, hexadiene, dimethyl butadiene, piperylene, dimethallyl and cyclopentadiene are specified multi-olefins, and the iodine number of the copolymers is preferably between 1 and 50.  It is preferred to use between 20 and 200 parts of the black per 100 parts copolymer, and the preferred heating range is for about 1 to 7 hours at between 250 DEG  and 450 DEG  F. without mechanical agitation or for between 10 and 60 minutes at the same temperatures with mechanical agitation. The oxycarbon black may have a pH below 1 and may be a furnace black or a channel black having oxygen on its surface.  The copolymer, after being heated with the black, may be vulcanized either by means of a sulphur cure or by using quinone dioximes or dinitrosobenzene or their equivalents.  Other usual vulcanization ingredients may also be present.
Patent GB-331138-A (GB)
Title: Method of and apparatus for producing a mixture of oil gas and water gas
IPC: C10J1/213
Filed: 1929-09-11
Abstract: 331,138. Humphreys & Glasgow, Ltd., (Assignees of Terzian, H. G.). Nov. 8, 1928, [Convention date]. Producers.-In the manufacture of carburetted water gas, oil, as vapour or gas, is simultaneously passed in parallel through a heated chamber and the hot fuel bed of a water gas producer, in which are produced respectively lightly cracked and heavily cracked oil gas. The plant comprises a water gas producer 1, carburettor 2 and superheater 3, oil is supplied through pipes 16 or 17, and oil gas through pipes 14 or 15. Steam supplies 10, 11 or 12 are provided, and air is introduced through conduit 9 with a branch 13 to the carburettor which may be either filled with chequer brick, or left empty when heavy oil is used. When the blow is completed and heat stored in the fuel bed, carburettor, and superheater, the up-run gases may be carburetted in the usual way with oil, or oil gas at 17, or 15 respectively, the gases passing to the wash box 7. Oil, or oil gas, is then again supplied to the carburettor and one portion of the oil vapour passes into and through the producer 1, where it is cracked, to the wash box 5, the other portion passing through the carburettor and superheater to the wash box 7, this portion being more lightly cracked and serving to enrich the water gas and the gasses passing through the fuel bed. In a modication, this carburettor takes the form of an empty chamber superposed on the gas producer, to which heavy oil is supplied, although this may be done through the pipe 16 shown in the drawing.
Patent GB-800523-A (GB)
Title: A food mixing machine
IPC: A21C1/14
Filed: 1956-09-10
Abstract: 800,523. Food-mixing machines. HANSON, B. C. Sept. 10, 1956, No. 27643/56. Class 86 A food - mixing machine, especially suitable for mixing dough, consists of a reciprocating stirrer 9 which, as it commences operation, automatically opens a valve 7 in an outlet pipe 6 to enable liquid , to flow from a reservoir 4 into a mixing bowl 3. The reservoir 4 is supported by a bracket 5 secured to stand 1, and the valve 7 is fitted with a lever 8 for engagement by an arm 11 on the stirrer 9.
Patent GB-410005-A (GB)
Title: Manufacture of a purified cellulose
IPC: D21C9/08
Filed: 1933-10-07
Abstract: In the manufacture of cellulose of high a -cellulose content, a pulp obtained by any opening up treatment is subjected in a moist state to a chlorination and is then treated with caustic alkali of 5--10 per cent strength with simultaneous introduction of gaseous chlorine in the cold or at a raised temperature.  Air dried beechwood shavings are treated with dilute nitric acid for about 12 hours at 30 DEG  C. The excess acid is removed, and the mass treated with water or with dilute nitric acid (up to 1 per cent strong) at 70--80 DEG  C. for 5--6 hours.  The cellulose thus obtained is treated with 2.5 per cent of chlorine, washed with very weak alkali and treated at 60 DEG  C. for 1--2 hours, in a liquor adjusted to contain 9 per cent of caustic soda and 6 per cent of cellulose, with 2 per cent of gaseous chlorine.
Patent GB-1185887-A (GB)
Title: Smoking Article
IPC: A24D1/22
Filed: 1967-06-15
Abstract: 1,185,887. Inhaling devices. SYNECTICS Inc. 15 June, 1967 [22 June, 1966], No. 27724/ 67. Heading A5T. An inhaler simulating a cigarette comprises an open tube 14 (53 Fig. 6) of combustible material which surrounds an inner tube 18 (61) or an inner coating of volatilisable material e.g. ammonium chloride, and a mouthpiece 20 (51) having an opening which communicates with the opening of the tube of combustible material the inner tube or coating preferably being separated from the combustible material by an incombustible tube (60) which is impervious to vapours from the volatile material and the combustible material and which disintegrates as the combustible material burns. The device is wrapped in conventional cigarette paper which is impregnated so that it stiffens after burning. The mouthpiece 20 includes a cotton filter 30 and a tube 25 for interconnection with the combustible tube 14. Holes 11 in the wrapper and passages 27, 28 in the mouthpiece permit ingress of air to the mouthpiece as the user inhales so that the vapour of the volatile material is diluted and cooled. Alternatively the mouthpiece (51) includes an apertured aluminium foil baffle (68) and a mesh filter (21). An igniter (55) of potassium nitrate or chlorate with nitrocellulose or ethylcellulose and tobacco may be provided at the forward end of the device. The combustible tube comprises a mixture of perlite diatomaceous silica, charcoal, glycerine and ethyl cellulose with tobacco, potassium nitrate with tobacco or dried lettuce or sawdust with tobacco. The impervious tube (60) comprises dicalcium silicate or bentonite with talc or calcium carbonate and may have an external coating of combustible material e.g. calcium carbonate with potassium or sodium nitrate and an elastomer such as ethyl cellulose, polyisobutylene or polyethylene, or be helically wound with cotton fibres.
Patent GB-1217853-A (GB)
Title: Improvements in and relating to agricultural implements
Inventor: GERMANY JOHN
IPC: A01B35/14
Filed: 1967-06-16
Abstract: 1,217,853. Agricultural implements. STANMILL CO. Ltd. 15 Aug., 1968 [16 June, 1967], No. 27778/67. Heading A1B. A cultivator comprises tines 24 which are forwardly inclined from the supporting frame. The frame, Fig. 2 (not shown) comprises transverse members of box crosssection, opposed corners of which receive U-shaped clamp members (32), (36), Fig. 3 (not shown) acted upon by cranked plates 29, 35 for securing the tines 24, preferably at an angle of 45 degrees to the plane of the frame. Each tine is provided with a concave share 25. The angle of the frame is variable via a hydraulically actuated telescopic tube 21.
Patent GB-1335960-A (GB)
Title: Internal combustion engines having fuel injection apparatus
IPC: F02D9/02
Filed: 1970-12-17
Abstract: 1335960 Regulating I. C. engine fuel and air supplies HONDA GIKEN KOGYO K K 17 Dec 1970 [22 May 1970] 27781/73 Divided out of 1334698 Heading F1B The increase in air-flow throughthe intake  passage 9 when the main throttle valve 7 is opened rapidly from the idling position is delayed by a spring-biased subsidiary throttle valve 10 downstream of the main valve. The valve 10 is respon -sive to the pressure in the passage 9 downstream of the valve 7 which acts through an orifice 17 on the valve diaphragm 19. The supply of fuel to the engine is controlled by the setting of the valve 7, a respective injection pump 3 supplying each injector 4.
Patent GB-473572-A (GB)
Title: A device attachable to a vehicle for accommodating a fabricated cover therefor
IPC: B60J7/12
Filed: 1936-10-14
Abstract: 473,572. Covers for vehicles; vehicle bumpers. CHARLESWORTH, G. H. E. Oct. 14, 1936, No. 27917. [Classes 103 (ii) and 108 (i)] In a vehicle cover which is carried on the vehicle as a unit in which a rolled up cover is mounted on a self-winding spindle within a casing, the spindle is accommodated in one section of a partitioned casing with an end projecting into another section where it is mounted for operation by gearing which is actuated by a shaft accommodated transversely of the casing and keyed to one end of a torsion spring. The holder comprises a casing a having a hinged lid b provided with bumper plates c on its exposed face. Rotatably mounted in the holder is a spindle d carrying an attached and rolled-up fabric cover e which is adapted to be drawn out over the vehicle and secured thereto to form a protecting cover. The spindle d is spring-biassed by means of a torsion spring m connected to the spindle d by gears j, h. When a wide cover is used its side edges are folded in before being rolled on the spindle d and its edges may be provided with securing eyelets.
Patent GB-603536-A (GB)
Title: A process for the manufacture of an imidazolidone derivative
Filed: 1945-10-23
Abstract: dl-4-Methyl-5-(o -carboxy-n-pentyl)-imidazolidone-(2) is manufactured by saponifying an a -acetosuberic acid dialkyl ester, reacting the acid obtained with a diazotized arylamine or with nitrous acid to form a 7-arylhydrazone or the 7-oxime of 7 : 8-diketopelargonic acid, hydrogenating the product in the presence of hydrochloric acid to form the hydrochloride of 7-amino-8-ketopelargonic acid, treating this with potassium cyanate and catalytically reducing the resulting 4-methyl-5-(o -carboxy-n-pentyl)-imidazolone-(2) or a salt thereof. When using a diazotized arylamine (e.g. aniline, a toluidine or a chloraniline), the hydrogenation of the resulting arylhydrazone yields a mixture of the 7-amino-8-ketopelargonic acid hydrochloride and an arylamine hydrochloride, which mixture may be directly treated with potassium cyanate, after which the 4-methyl-5-(o -carboxy-n-pentyl)-imadozolone-(2) is readily separable, by virtue of the water-solubility of its alkali metal salts, from the arylurea simultaneously formed.  In an example, a -acetosuberic acid diethyl ester is saponified with cold aqueous caustic potash, the acid is liberated and treated with diazotized aniline, the resulting phenylhydrazone is hydrogenated in aqueous methanolic hydrochloric acid solution at room temperature and atmospheric pressure in the presence of palladised charcoal, the methanol is distilled off and the residual aqueous solution is treated with potassium cyanate solution, the resulting 4 - methyl - 5 - (o  - carboxy - n - pentyl) - imidazolone-(2) is separated from the phenylurea by solution in caustic soda solution, reprecipitated by acidification and redissolved in caustic soda solution, the solution of the sodium salt is hydrogenated at 200 DEG  C. and 200 atmospheres pressure in the presence of a nickel catalyst precipitated on kieselguhr, and dl-4-methyl-5-(o -carboxy-n-pentyl)-imidazolidone-(2) is precipitated by concentration and acidification, e.g. with acetic or formic acid. The Specification as open to inspection under Sect. 91 comprises also the hydrogenation of 4-methyl-5-(o -carboxy-n-pentyl)-imidazolone-(2) or its ethyl ester in the presence of a platinum oxide catalyst (followed, in the case of the ester, by saponification) to give a product of uniform steric structure and higher biological activity. This subject-matter does not appear in the Specification as accepted.
Patent GB-1452550-A (GB)
Title: Collapsing pin roller
IPC: G11B23/087
Filed: 1974-06-24
Abstract: 1452550 Pin rollers for tape cassettes MINNESOTA MINING & MFG CO 24 June 1974 [25 June 1973] 27980/74 Heading B8M A tape cartridge or cassette having resilient upper and lower exterior walls 13, 14 includes at least one tape guiding pin roller 1. The roller comprises an outer surface 3, a coaxial bore 5 and a spindle 7 of slightly greater diameter than that of the bore. The pin roller is constructed to be too long to fit between the closed walls 13, 14. Hence on assembling the cassette or cartridge the walls are pressed together with sufficient force to push spindle 7 further into bore 5. If the walls were non-resilient the pin roller would have no longitudinal play and hence tend to bind with the case. The resilient walls flex sufficiently under the pressure for the spindle to be driven into the bore to give the pin roller a controlled slight longitudinal play determined by the deflection of the walls. Spindle 7 co-operates with bore 5 to journal the pin roller in the upper wall. Other bearing means journal it in the lower wall. In the embodiment shown lower wall 14 has an axle pin 23 which fits lossely into bore 5. Alternatively a pin or roller I may fit loosely into a bearing in wall 14. The spindle 7 is moulded integral with hub 4 and a membrane 8 which holds the spindle in axial alignment with the bore 5. Prior to positioning the pin roller between walls 13, 14 the spindle is driven a short distance into the bore to sever the membrane 8. Suitable the spindle is 2 or 3 mils thicker than the bore. The roller has rim 2 joined by an annular web 6 to a thin hub sidewall 9 to facilitate expansion of the bore. It is moulded from acetal copolymer or a metal. The exterior surface 3 is convex so that the roller guiding pressure upon the tape 16 is more evenly distributed over the width of the tape whether or not the axis of the roller is tilted.
Patent GB-416956-A (GB)
Title: Improvements in or relating to sheet metal seals
IPC: G09F3/03
Filed: 1933-10-11
Abstract: 416,956. Seals. STOFFEL, H., and STOFFEL, F. L., Horn, Thurgau, Switzerland. Oct. 11, 1933, No. 28012. [Class 146 (ii).] In a sheet-metal seal comprising two portions connected together by a strip v, the latter is reinforced by means of outwardly directed ribs or veins s, whereby the strip is prevented from tearing when the one portion is folded over on to the other. The two portions of the seal are set at right angles to each other before use. The seal is used for enclosing the ends of a string or wire which are placed in slots z, w across the part x, whereupon the part t is doubled over into the part q, and the edges of the latter are then pressed inwards over the part t. The horizontal portion of the seal has its resting points situated in a common plane to enable the seal to rest firmly on that portion before sealing.
Patent GB-1390027-A (GB)
Title: Rims wheels and pneumatic tyre and wheel assemblies
IPC: B60C5/16
Filed: 1971-06-16
Abstract: 1390027 Vehicle wheels DUNLOP Ltd 6 June 1972 [16 June 1971] 28097/71 Heading B7C A wheel rim comprises two parts 2, 7, secured together as by bolting or by rivetting, and an annular sealing member 15 secured between the parts so as to trap the outboard tyre bead 16 between itself and the bead retaining flange 3. Displacement of the outboard bead in the event of deflation of the tyre is thus prevented. Spacers 11 are accommodated in apertures 14 in the sealing member and the bulbous part 12 of the latter may be reinforced by metal wires or fabric material embedded therein and extending circumferentially in the manner of a tyre bead wire, and further reinforcement, e.g. a layer of textile fabric may be incorporated in portion 13 of the sealing member and may be wrapped around the reinforcement of the bulbous portion. As illustrated the outboard rim part 2 is integral with the wheel disc 1. Alternatively the rim parts are both separate from, and secured to, a wheel disc (Fig. 3, not shown).
Patent GB-405929-A (GB)
Title: Improvements relating to duplicating apparatus
IPC: B41K1/22
Filed: 1933-10-11
Abstract: 405,929. Printing - apparatus. BLICK TIME RECORDERS, Ltd., 174, Cray's Inn Road, London, and RENNING-WERK AKT.- GES., DR. J., 20, Badstrasse, Munich, Germany. Oct. 11, 1933, No. 28125. Convention date, Feb. 27. [Class 100 (ii).] Inking-apparatus.-A hand inking-apparatus for stencil or other duplicating apparatus comprises a frame a in which is mounted an inking-roller e, a pair of distributing rollers d, and an ink supply roller c provided with perforations m over a part of its periphery and a weight n which, when the roller is in its normal position out of contact with the rollers d, maintains the roller with the perforations uppermost. The roller c is carried in a lever i pivoted to the frame a and provided with a thumb or finger piece by which the roller can be depressed, when required, into contact with the rollers d against the action of a spring k. The roller a may be supplied with ink through a bore in its shaft normally closed by a screw plug, or through a hole t closed by a spring plate u. The rollers d are mounted in slots in the frame a and are held in contact with the roller d by springs.
Patent GB-688426-A (GB)
Title: Improvements in variable delivery hydraulic pumps
IPC: B29C45/82
Filed: 1950-11-20
Abstract: 688,426. Regulating delivery of pumps. WINDSOR, Ltd. R. H., and BAIGENT, K. H. Oct. 3, 1951 [Nov. 20, 1950], No. 28322/50. Class 102 (i) [Also in Group XXIX] In a variable delivery hydraulic pump comprising a spring loaded or otherwise biased piston 25 subject to the delivery pressure of the pump 10 and coupled to the pump delivery control mechanism to reduce the delivery progressively as the pressure increases, a second piston (in cylinder 31) co-acting with the delivery control mechanism, and a valve 54 movable from a position in which the biased piston is connected to the pump delivery and the second piston is connected to exhaust to an alternative position where the biased piston is relieved of pressure and hydraulic pressure is applied to the second piston, a stop arrests the second piston in a predetrmined position in which the delivery control mechanism is set to give a predetermined delivery. The tilting box of the swash plate pump 10 is mounted in trunnions 21, 22 connected by arms 23 and 28 to the rods 24 and 29 of the pistons 25 and 30 disposed in cylinders 26 and 31 respectively. The pump supplies liquid to an injection moulding machine and is initially set to its maximum delivery position by a spring 27, liquid being supplied via a pipe 53 to a valve 54 the spool of which occupies a position such that the cylinder 31 and pipe 60 are connected to exhaust and pressure liquid in pipe 53 is connected to pipe 59 and the piston 25. Increase in pump delivery pressure moves the piston against the force of the spring 27 to reduce the inclination of the swash plate and hence the delivery of the pump. As the injection plunger of the press advances it closes a limit switch thereby energising a solenoid operated pilot valve to reverse the flow of liquid to the ends of the spool of the valve 54 so that the position thereof changes over. the piston 25 and pipe 59 being connected to exhaust and the delivery pipe 53 being connected to the pipe 60 and cylinder 31. The piston 30 then moves until arrested by a sleeve 32 and so sets the swash plate of the pump 10 at a position determined by the location of the manually adjustable sleeve 32. The pump continues to deliver at constant volume until a time switch de-energises the solenoid of the pilot valve, whereupon the valve 54 reverts to its initial position and the piston 25 assumes control over the swash plate until the limit switch is again operated on the forward stroke of the injection plunger during the next machine cycle.
Patent GB-247677-A (GB)
Title: Improvements in tool-driving connections for flexible shafts
IPC: B24B41/04
Filed: 1924-11-26
Abstract: 247,677. Sanders, G., and Jones, E. Nov. 26, 1924. Flexible shafts.-In a tool-drawing connection for flexible shafts the work-spindle 5 is mounted on ball bearings in a casing 1 and is screwed at one end for attachment to a rotary tool while the other end is attachbly secured to a stub-shaft 11 having a recess 14 adapted to receive the core of the flexible shaft. The stub shaft is carried in an extension 10 screwed to the casing and may be connected to the working spindle either by a tang 8 or by a screwed joint, a thrust bearing being provided at 12. In a modification, the tool-carrying end of the working-spindle may be flatted and the tool be held in position by a stud. In a further modification, Fig. 3, the tool is mounted on an adapter 18 screwed onto the spindle 5 and an outer steadying-handle 24 is connected to the adapter by a tang 21 on the spindle 22 mounted on ball-bearings in the handle. Other methods of attaching the handle to the working spindle may be employed.
Patent GB-191857-A (GB)
Title: Improvements relating to the regeneration and superheating of steam in chambers containing hot water under pressure
IPC: F01K3/10
Filed: 1921-10-25
Abstract: 191,857. Schmidt, W. Oct. 25, 1921. Superheating by hot liquids.-In apparatus for regenerating and superheating steam in containers containing hot water under pressure particularly intended for use in submarines, regenerated steam taken from one or more containers is superheated in coils in other containers in turn, regenerated steam being also taken from containers previously used for superheating. Boiler steam passes from pipes D under the control of stop valves a<1>, a<2> into heating coils E<1> in the side containers A<1>, A<2> of a group of five containers then through pipes C<1>, C<2> into a distributing pipe d having branches which are fitted with non-return valves e and terminate, in perforated pipes F inside all five containers. Regenerated steam is first taken from the containers B<1>, B<2>, B<3>, and is led from the discharge pipe h through a throttle valve b<1> into the coil in the container A<1>. When the temperature in the container becomes too low for superheating, the steam is led through the coil in the container A<2>, the container A<1> being then brought into use for supplying saturated steam. The arrangement of containers described is duplicated the boiler steam being led through the coils in the duplicate containers A<3>. A<4> in turn. In a modification, the containers B<1>, B<4> contain oil or other liquid having a high boiling point in which steam coils are immersed, the connection being so arranged that during charging of the apparatus, boiler steam passes through the steam coils on its way to the other containers, and during discharging regenerated and superheated steam is further superheated in the coils.
Patent GB-533241-A (GB)
Title: Improvements in or relating to an electron discharge device utilising negative transconductance
IPC: H03B7/04
Filed: 1939-10-20
Abstract: 533,241. Thermionic oscillation generators. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 20, 1939, No. 28369. Convention date, Oct. 22, 1938. [Classes 39 (i) and 40 (v)] An oscillation generator making use of negative transconductance comprises a electron discharge device having a cathode K, a first grid G1, a second grid G2, a third grid G3, and an anode A, a feedback circuit between the second and third grids G2, G3 for producing negative resistance, and an auxiliary feed-back between the anode A and the first grid G1 for augmenting the negative transconductance produced between the second and third grids, and means for biasing the first grid G1 negatively with respect to cathode K to prevent said first grid from drawing appreciable current. The frequency of the oscillation may be determined by a parallel tuned circuit 11, or by a a series tuned circuit, or by a resistance shunted by a condenser, or by a piezo-electric crystal ; and the coupling between the circuits of grids G2, G3 may be by a bias battery 8, Fig. 3, or by a condenser C2, Fig. 7. The coupling between the circuits of anode A and grid G1 may be by an impedance Z placed as shown in Fig. 3 or as shown in Fig. 7, which shows a valve having two additional grids G1, GS acting as screening grids. The output electrode G2 instead of being in the form of a grid may be placed at one side of the direct electron path and may comprise two small flat anodes.