baber/WOPTO huggingface dataset:
Patent GB-1266771-A (GB)
IPC: F02M9/127
Filed: 1969-07-01
Abstract: 1,266,771. Spray carburetters. J. H. GRAFFMAN. July 1, 1969 [July 3, 1971], No.33163/69. Heading F1B. In a carburetter with a spring-biased injection valve 7 which vibrates when fuel under pulsating pressure is supplied to the injection nozzle 6, the spring-biasing of the valve 7 is adjustable in accordance with the air-flow through the carburetter. In the embodiment shown, the valve 7 is biased against its seat 8 by the spring 19 acting in opposition to the spring 31. The force exerted by the spring 31 is determined by a flap 24 in the carburetter inlet moved angularly about the pivot 25 in accordance with the air-flow through the inlet. The mixture flow is controlled by a sliding throttle valve 4. To increase fuel-flow for starting the flap 24 is manually movable by a member 33<SP>1</SP> to reduce the mean spring force acting on the valve 7. The fuel is supplied to the nozzle 6 by a pulse generator 33 described in Specification 1, 094, 057. The spring 19 may be located around the vertical arm (22), Fig.2 (not shown), if an L-shaped lever (10), the horizontal arm of the lever having its free end located in an adjustable pivot (37<SP>1</SP>) in the wall of the induction passage. The member actuated by the induction passage air-flow may be an annular plate (38), Figs.3 to 5 (not shown), or a streamlined body (75 or 76) Figs.12 and 13 (not shown), movable axially in the induction passage. The springs producing the mean force closing the valve 7 may be arranged coaxially of the air movable member and one of the springs (48), Fig.4 (not shown), may be a tension spring. The springs may act on the valve 7 through a stirrup-shaped member (34), Figs.10 and 11 (not shown), located for movement by wires (61) or a leaf-spring (60). The member acting on the valve 7 may be guided for axial movement by a plate (56), Fig. 6 (not shown), located by three angularly spaced tension springs (55) or by a pair of axially spaced three-armed leaf-springs (57), Figs.7 and 8 (not shown). The member (34), Fig. 3 (not shown) acting on the valve 7 may be guided in a sleeve (36) fixed in the carburetter body on which the air-flow movable member (38) is mounted. The sleeve (36) may be provided with P.T.F.E. or phenol formaldehyde resin and asbestos fabric bearing bushes (79), Fig.9 (not shown). The air-flow movable member (38<SP>111</SP>), Fig.5 (not shown) may be movable with increased air-flow in a direction opposite to the flow of air past the nozzle 6 by arranging for the air-flow to reverse direction after passage past the air-flow movable member.
Patent GB-1288851-A (GB)
IPC: C01B17/58
Filed: 1970-02-09
Abstract: 1288851 Sulphur dioxide from spent sulphuric acid STAUFFER CHEMICAL CO 9 Feb 1970 [11 Feb 1969] 6014/70 Heading C1A SO 2  is prepared from spent H 2 SO 4  by burning the acid in a furnace with O 2  and air, together with carbonaceous fuel either already present in the acid, or added, the quantity of air being sufficient to atomize the acid and the quantity of oxygen in the effluent gas being sufficient to avoid the development of reducing conditions (defined) in the furnace. Excessive furnace temperatures may be prevented by injecting quenching liquids into the furnace. The effluent gas may be treated to remove entrained solids, dried, and demisted and then have sufficient air or oxygen added to render it suitable for the manufacture of H 2 SO 4  by the contact process.
Patent GB-1290269-A (GB)
IPC: B29C44/30
Filed: 1970-08-20
Abstract: 1290269 Cellular synthetic resins COMPAGNIE DE SAINT - GOBAIN - PONT - AMOUSSON 20 Aug 1970 [27 Aug 1969] 40204/70 Addition to 1093238 Heading C3C A cellular product is made from expanded pearls of synthetic resin, e.g. polystyrene, according to Claim 1 of the parent Specification, wherein the expanded pearls of synthetic resin are obtained from expansible granules containing an expanding agent in a proportion of from 4 to 5% of the total weight of the granules. The expanded pearls may have an apparent density between 10 and 25 kg./cu.m, and the cellular product may have a density in excess of 15 kg/cu.m.  The parent Specification concerns a method for making a cellular product from expanded pearls of synthetic resin comprising:-heating the expanded pearls to their softening temperature; compressing the softened, expanded pearls to impart the required final product thickness and density; and cooling under compression sufficient to maintain the thickness. In the examples polystyrene granules containing a mixture of n- and iso-pentane were expanded with steam.
Patent GB-1295042-A (GB)
IPC: F16L37/12
Filed: 1968-08-13
Abstract: 1295042 Pipe joints BRITISH ROPES Ltd 5 Nov 1969 [13 Aug 1968] 38726/68 Heading F2G  Two flanged pipes 1, 26 are coupled by latches 32, carried by levers 46 pivoted on a ring 43 on pipe 1, engaging the flange 5 of pipe 26, the latches being adjustable relative to the levers to accommodate various thicknesses and/or diameters of flange 5. The latches 32 are pivoted in the bifurcated ends of the levers 19 by pins 40. For flanges 5 of small diameter, the latches 32 are secured in the levers 19 radially with faces 42 contacting the flange; for flanges of larger diameter, the latches are secured axially, in position 32a, with faces 39 contacting the flange, and stops 35 retaining the latches against rotation, about the pins 40. The latches are asymmetrical about the pins 40 so that on removal and reversal thereof they are repositioned at 326 to accommodate small variations of flange diameter. Rollers 49 held in twin supports 50 retain the levers in the clamping position. Ring 43 engages a sleeve 44, rotatable on pipe 1, by a screw-thread, so that rotation of sleeve 44 draws the ring axially away from the flange 2 thus pulling the pipes 1, 26 together by means of the latches. Alternatively axial displacement of ring 43 may be effected by hydraulic rams. Three or four equi-spaced levers may be utilized. An adaptor ring for use between pipes 1, 26 of different diameter is described in Specification 1,295,041. The sealing ring 4 may be of the type disclosed in Specification 1,260,200.
Patent GB-1295655-A (GB)
IPC: F22B1/02
Filed: 1969-12-10
Abstract: 1295655 Vapour generators BABCOCK & WILCOX CO 10 Dec 1969 [10 Dec 1968] 60346/69 Heading F4A A vapour generator, in particular for steam, comprises a pressure vessel 11 containing tubes 17 through which flows a heating fluid, e.g. coolant from a nuclear reactor, and an economizer chamber 22 supplied with feedwater through conduits 23, the chamber 22 having a riser passage 40 constituted by a duct 30 and communicating with a space 38, there being provided an annular passage 35 which communicates with both the space 38 and with the riser duct 30 through a flow space 39. Primary heating fluid enters a conduit 19 to heat the feedwater rising in a sinuous path through the chamber 22 due to annular disc baffles 32, 33 which have holes 34 for the passage of tubes 17. The primary fluid discharges through a conduit 21. In the space 38, water and steam separate, the steam rising through a space 36 defined by a baffle 28 to outlets 27, while the feedwater passes to the riser duct 30 wherein it is heated to promote circulation, via the passage 35 and space 39. In a second embodiment, Fig. 3 (not shown), the economizer chamber (22<SP>1</SP>) has four parallel, vertical, horizontally spaced riser ducts (41A-41D).
Patent GB-1297144-A (GB)
IPC: G03G5/04
Filed: 1969-11-24
Abstract: 1297144 Electro-photographic processes A B Dick CO 24 Nov 1969 [10 Feb 1969] 57372/69 Heading G2H [Also in Divisions C7 and H1] An electro-photographic plate is produced by deposition within a vacuum, by moving a substrate 8 of metallic or other conducting material past an opening 6 of a metallic shield 4 above a heated crucible 2 containing material having photovoltiac properties, the centre line 10 of the substrate being maintained at an angle 6 to the perpendicular 12 between 10 degrees and 60 degrees. The material is deposited in a layer 14, Fig.2 (not shown), between 0À5 to 50 microns in thickness. Examples of suitable materials include ZnS, ZnSe, ZnTe, CdSe, CdTe, Sb, SbS, SbTe, Se, Bi, BiS, and BiTe. The deposition at an angle other than at a right-angle is stated to produce deposition in a large number of individual crystals rather than a single crystal. The plate so produced is imaged by exposure to an original 16, such that light incident on the layer 14 causes a voltage variation over the surface which varies as a function of the incident light. The area 26 corresponding to the dark area 18 of the original develops little or no voltage, while areas 28 corresponding to light areas 20 develop greater voltages. The latent image produced is developed in known manner by charged toner (32) Fig.3 (not shown). The developed image may be transferred to a sheet coated with adhesive material. The layer 14 may be formed on a drum substrate which rotates cyclically through  exposure, developing and transfer stations.
Patent GB-1297751-A (GB)
IPC: C01B32/50
Filed: 1971-01-12
Abstract: 1297751 Producing CO 2  L E LEAS R L LEAS and C J JOHNSON 12 Jan 1971 [12 Jan 1970] 1467/71 Heading C1A [Also in Division C5] A process for making hot desulphurized CO 2  77, e.g. for generating steam in exchanger 93 with the optional recovery of sulphur at 23 comprises the alternate oxidation and reduction of cobalt oxide beds 3, 7 separated by a coke bed 5 in a column 1. In the oxidation stage, air 9, 27, 39, preheated by the gaseous products of the beds, is delivered to each bed to raise the cobalt oxides to a higher valence and convert cobalt sulphide to SO 2  in beds 3, 7, and partially to burn the coke in bed 5. Gas flow between the beds is prevented by controlling the pressure. N 2  is vented to atmosphere where shown. In the reduction stage, char in a gasifier 63 is gasified to CO, SO 2  by hot CO 2  from the column 1 produced by the exothermic reaction of CO from line 75 with the oxides in beds 3, 7, CO 2  reacting with the coke in bed 5 to produce more CO, valves 11, 22, 29, 37, 41, 49 being closed. The CO 2  stream is split at 79, 81, the stream 79 emerging for further use or venting at 107. During reduction, the cobalt oxides are lowered in valence, and the SO 2  from line 75 reacts to form the cobalt sulphides.
Patent GB-1301233-A (GB)
IPC: B66C13/06
Filed: 1971-07-12
Abstract: 1301233 Pulley arrangements TITOVI ZAVODI LITOSTROJ 12 July 1971 32547/71 Heading B8B An arrangement for suspending a load beam 5 from a lifting mechanism or trolley frame 4 comprises four pairs of cables 21, 21<SP>1</SP> extending from a motor driven winding drum 1, over pulleys mounted on the frame 4 and pairs of cables extending downwardly and angularly towards each other to equally support the load beam 5 mid-way along each side thereof. The inner cables 21 on the drum 1 pass either directly or via reversing pulleys 16, 17 to pulleys 6, 7, 8, 9 mounted on the frame 4 in swivel housing 10, prior to passing over pulleys 20 disposed on the beam 5 on an axis perpendicular to the drum axis, the cables then returning up to the frame 4 from anchorage thereto. The outer cables 21<SP>1</SP> pass either directly or via reversing pulleys 15, 18 to pulleys 11, 12, 14 mounted on fixed axles on the frame 4, from which they pass to and around pulleys 20 on the beam 5 and disposed on an axis parallel to the drum 1.  In another embodiment Figs. 2, 4 (not shown), the depending cables are anchored directly to the load beam.
Patent GB-1304849-A (GB)
IPC: G01N27/403
Filed: 1969-07-14
Abstract: 1304849 Electro-chemical analysis IMPERIAL CHEMICAL INDUSTRIES Ltd 25 June 1970 [14 July 1969] 35352/69 Heading G1N In a combined electrode assembly in which a sensor electrode 7 and a reference electrode 6 are arranged in a tubular housing 1, the elec--- trodes are individually removable and replaceable. As shown, a silver/silver chloride electrode 7 and a platinum reference electrode 6 are detachably held in a P. T. F. C.E. cap 5 itself detachably fitted to a P.T.F.C.E. housing 1. A porous disc 3 permits conductance between solution inside and outside housing 1. 10 is coaxial cable. The arrangement may be used to measure redox potentials or chloride ion concentration in the manufacture of vinyl acetate. In alternative arrangements (not shown), the sensor electrode may be platinum, glass, or a specific ion electrode.
Patent GB-1306744-A (GB)
Title: Treatment of foodstuffs
IPC: A23L3/3463
Filed: 1970-08-13
Abstract: 1306744 Storing foodstuffs R I CAHN 14 July 1971 [13 Aug 1970] 39079/70 Addition to 1229325 Headings A2B A2D and A2E Cooked juice-yielding foodstuffs, for example beet, are stored in an edible gel-forming substance, in gelled form, for example gelatin, containing vinegar or acetic acid. When the foodstuff is to be packaged the gel is liquefied and drained off. The foodstuff and gelled substance may be covered, sealed, and shielded from light during storage, for example by being covered with a plastic sheet over which another layer of acid gelled substance is applied. It may be pasteurised.
Patent GB-1307268-A (GB)
Title: Bogie suspensions
IPC: B61F5/32
Filed: 1970-08-05
Abstract: 1307268 Tandem axle suspension BRITISH LEYLAND TRUCK & BUS DIVISION Ltd 29 July 1971 [5 Aug 1970] 37714/70 Heading  B7D A tandem axle suspension comprises a bracket 11 attached to each side member 40 of a vehicle chassis, a pair of driven axles 12, 13 having axle carriers 14, 15 at each end, radius arms 21, 22 pivotably connected between the lower ends of the carriers 14, 15 and the adjacent bracket 11, a tapered leaf spring 16 pivotably mounted on each bracket 11 with its ends connected to the upper ends of the adjacent carriers 14, 15, and a cross member 25 bolted to the brackets 11 through the chassis members 40. The spring 16 is clamped to a trunnion 17 pivotably mounted by means of a rubber bush 18 on a tube 19 secured between two pressings 11a, 11b forming the bracket 11 by a bolt 20. The radius arms 21, 22 are pivotably connected to the carriers 14, 15 and bracket 11 by spherical rubber bushes 23, 24. The crossmember 25 is fabricated from two metal pressings welded together and is shaped so as to have its greatest horizontal section moduli at its ends. A further cross-member 26 connects the lower ends of the brackets 11. Rubbing plates 51 of hardened steel transmit slewing loads between the spring 16 and bracket 11.
Patent GB-1309348-A (GB)
Title: Muscle retractors
IPC: A61B17/02
Filed: 1971-05-04
Abstract: 1309348 Muscle retractor W X HALLORAN 4 May 1971 12890/71 Heading A5R A muscle retractor comprises two members 10 and 11, having bone engaging portions 12, with a bale-type brace 21 pivotally attached to the end of the first member 10 and serations 25 in the second member 11, in which the end 23 of the brace 21 rests in use. A second brace 41 may be attached to the end of the second member 11, this brace 41 being longer than the first brace 21 and having an end 43 which rests in serations 43 of the first member 10. The brace 21 may be replaced by a brace (53) Figure 4 (not shown) which is pivotally attached to a first member 51 by a transverse pivot pin (57), and which is stored in a recess (55) in the member 51. The members 10 and 11 may have enlarged pad portions 35 to hold back the flesh around the bone 31, these enlarged pad portions 35 containing apertures 39 for use with towel clamps. A coupling (47) Fig. 5 (not shown) may be provided so that the ends 23 and 43 of each brace may be held abutting each other.
Patent GB-1315215-A (GB)
Title: Production of conductor material
IPC: H01B1/02
Filed: 1970-09-24
Abstract: 1315215 Electro-plating conductors RICHARD JOHNSON & NEPHEW Ltd 28 July 1971 [24 Sept 1970] 45486/70 Heading C7B An electric conductor is produced by cleaning an Al or Al alloy wire, rod or strip, e.g. degreasing with organic solvent followed by chemical cleaning with alkaline cleaning agents, then in an acid bath, each followed by washing; depositing by electro-plating or chemical displacement on the cleaned surface a layer of Zn or Cu-Sn alloy, e. g. by the zincate or Alstan process respectively; further depositing on this layer from an electroplating bath first a flash coating (5-20% of final thickness) then a final coating (80-95%) of ductile Cu or Ag from a cyanide bath containing Rochelle salt using a CD of 5-40 ASF (flash coating) or a copper sulphate or fluoborate bath using a CD of 15-400 ASF (final coating). Initially the wire rod or strip may be drawn through a die; the plated product may be rolled or drawn prior to coiling. The Cu or Ag coating has a cross-sectional area 5-25% of that of the final conductor. For subsequent batch annealing, Pb which does not form brittle alloys with Al, Cu or Ag may be electro-plated on to the Zn or Cu-Sn layer prior to electroplating the flash coating.
Patent GB-1320493-A (GB)
Title: Rotary drum assemblies
IPC: F16L27/08
Filed: 1969-05-05
Abstract: 1320493 Rotary pipe joints NORRIS INDUSTRIES RUSHDEN Ltd 5 Aug 1970 [5 May 1969] 22707/69 Heading F2G A fixed pipe 3 is held in a rotary drum journal 2 by a bearing 17 mounted between a gland 15, secured to the end of the journal, and a sleeve 4 secured to the pipe; a sealing ring 23, positioned between the journal end and the bearing, seals between the outer surface of the sleeve and the gland. The pipe 3 is divided by a central longitudinal partition 6 into two channels 7, 8. The sleeve 4 has a flange 9 for securement to fluid supply and return lines. (For Figure see next page)
Patent GB-1333424-A (GB)
Title: Azine derivatives of piperidine and their use as stabilizers
IPC: C08K5/3435
Filed: 1971-09-30
Abstract: 1333424 Stabilizing polyolefins CIBA GEIGY (UK) Ltd 30 Sept 1971 [19 Sept 1970] 44759/70 Heading C3P [Also in Division C2] A light stabilizer for polyolefines comprises an azine derivative of piperidine having the formula  wherein X represents: OH, NO, alkyl having 1 to 4 carbon atoms, hydroxyalkyl having 1 to 4 carbon atoms, alkoxymethyl having 1 to 4 carbon atoms in the alkyl moiety, cyanoalkyl having 2 to 4 carbon atoms, aralkyl having 7 to 12 carbon atoms, an acyl group having 1 to 12 carbon atoms, or the group alkyl-NHCO- in which the alkyl group contains 1 to 4 carbon atoms and X<SP>1</SP> represents H, OH, NO, alkyl having 2 to 4 carbon atoms, hydroxyalkyl having 1 to 4 carbon atoms, alkoxymethyl having 1 to 4 carbon atoms, in the alkoxy moiety, cyanoalkyl having 2 to 4 carbon atoms aralkyl having from 7 to 12 carbon atoms, an acyl group having 1 to 12 carbon atoms or the group alkyl-NHCO- in which the alkyl group contains 1 to 4 carbon atoms. The azide is preferably used in an amount of from 0À01 to 5% by weight of the untreated material, suitably in conjunction with other additives such as antioxidants, further light stabilizers, anti-slipping agents, &c. Examples describe the light stabilization of polypropylene.
Patent GB-1337388-A (GB)
Title: Storage and feeding arrangements for ammunition belts
IPC: F41A9/74
Filed: 1969-12-01
Abstract: 1337388 Ammunition belt storage and feeding apparatus BRITISH AIRCRAFT CORP Ltd 19 April 1971 [1 Dec 1969] 58540/69 Heading F3C An ammunition belt storage and feeding arrangement comprises a cylindrical drum 14, Fig. 1, which serves as magazine and is rotatably mounted on a spigot 24 carried by an aircraft fuselage, and a belt guiding means located at or adjacent an end 14a of the drum 14 so that, when a helically-coiled ammunition belt 19 is posititioned in the drum with its individual rounds 18 of ammunition disposed substantially radially relatively to the axis of revolution of the drum, the belt 19 can be progressively withdrawn from the end 14a of the drum 14. The belt guiding means is a roller 16, Fig. 2, which is mounted on the aircraft fuselage so that its axis of rotation is substantially radially disposed relative to the axis 14<SP>1</SP> of the drum 14. An ammunition duct 15 is provided between the end 14a of the drum and gun body 12a. The drum has an internal biasing means 14e, Fig. 1, on which the helical coil of ammunition rests and may include springs (not shown) or a screw thread (not shown), and is rotated by means of a motor 21, through a gear 23 and a toothed rack 22 which is mounted on the drum. In use the speed of rotation of the drum is synchronized with the rate of firing of a gun 12, Fig. 2, the gun mechanism draws the belt 19 from the duct 15 and the biasing means 14e urges the belt towards the end 14a of the drum. A space 17 is provided to collect cartridge cases and belt links subsequent to firing the rounds 18, the used cases being ejected through a duct 20 and the links being ejected through a duct 25, Fig. 3.
Patent GB-1341233-A (GB)
Title: Manufacture of articles containing silicon nitride
IPC: C04B35/645
Filed: 1971-03-12
Abstract: 1341233 Hot pressed silicon nitride PLESSEY CO Ltd 1 Feb 1972 [12 March 1971] 6790/71 Heading C7D A two stage process of forming an article containing Sn 3 <SP>-</SP>N 4  comprises hot pressing the powder and then repressing the compact. Repressing is preferably effected at 1650- 1850‹C at 0À5-2 t. s. i. in a graphite or nitreous carbon mould. The mould surfaces used in the initial hot pressing may be coated with a BN slurry and the contaminated surface layer of the hot pressed compact may be removed e.g. with a diamond tool prior to repressing.
Patent GB-1350209-A (GB)
Title: Counterpressure filling machine
IPC: B67C3/26
Filed: 1970-11-04
Abstract: 1350209 Counterpressure filling machine DAWSON & BARFOS Ltd 27 Oct 1971 [4 Nov 1970] 52408/70 Heading B8T A counterpressure filling machine is operated by pneumatic low and high pressure systems; the low pressure system controls a snift valve 172 and pilot valve 148, and the high pressure system, controlled by the pilot valve 148, operates the counterpressure valve 70 and liquid valve 50. With no container 216 below the bell 208, the button 180 is depressed by a cam (194), Fig. 1 (not shown), and held by a spring limb 192, and the low pressure system in tubes 162 and 168 is vented to atmosphere through an opening (184), Fig. 3 (not shown), the venting allowing the diaphragm 158 to remain undisplaced. The pipe 152 then supplies high pressure air to a chamber above the main piston 110, which is forced down and shuts the counterpressure and liquid valves 70 and 50 respectively. As the bell 208 is raised by a container top, the spring 192 disengages from the button 180 thus closing the opening (184) and causing a pressure build up in the low pressure system which causes the diaphragm 158 to be displaced, thus shutting off the high pressure pipe 152 from the chamber above piston 110 which is now vented to the atmosphere through vent 160. This allows piston 110 to rise under the action of the spring 120 and open the counterpressure valve 70 which pressurizes the container through the counterpressure tube 60 and eye 56. The spring 66 and pressure build up in the container cause the liquid valve 50 to move upwards and allow liquid 222 to fill the container. During filling air is forced through port 134 and between the pistons 110 and 114, separating them and thus reducing the counterpressure valve opening, Fig. 7 (not shown), and allowing rapid closure if bottle breakage occurs. After a predetermined time, the cam (194) again engages button 180 causing the low pressure system to be vented, and the high pressure system to force piston 110 down and close the counterpressure and liquid valves. Excess pressure in the container 216 is vented to the atmosphere by forcing the valve member (196), Fig. 3 (not shown), away from the snift passage (200).