baber/WOPTO huggingface dataset:
Patent GB-1475335-A (GB)
Title: Process for separating an acid gas from a gaseous mixture
IPC: C01B32/50
Filed: 1974-10-25
Abstract: 1475335 Separating oxidic gases IMPERIAL CHEMICAL INDUSTRIES Ltd 25 Sept 1975 [25 Oct 1974] 46252/74 Addition to 1422423 Heading ClA [Also in Division G3] In the process described in the parent Specification for separating an acid gas from a gaseous mixture in which the corrosion potential is prevented from falling below a preset value, the preset value is now chosen to be a preselected amount above that at which a metal surface in contact with the absorbing solution becomes susceptible to intergranular corrosion to a significant extent. A distinction is drawn between this form of corrosion and the stress corrosion described in the parent. An example is given.
Patent GB-999022-A (GB)
Title: Machines for the manufacture of cakes, pies and analogous confectionery
Inventor: BURGESS LESLIE NORMAN
IPC: A21C9/04
Filed: 1963-03-08
Abstract: 999,022. Delivering measured quantities of fluent solid materials. BURGESS ENGINEERING (STOKE ON TRENT) Ltd. May 27, 1964 [March 8, 1963], No. 46401/62. Heading B8N. In a machine for making cakes, pies &c., means for depositing measured quantities of " filling " comprises a table 13 reciprocable below a hopper 10 and provided with a measuring compartment 132, a suction device for withdrawing filling from the compartment and holding it in a suspended condition by suction (Fig. 5), and means for " breaking " the vacuum when the table 13 has moved away so that the filling 11 is released and dropped on to a sheet of dough 12 or into a baking receptacle. The example shown comprises four hoppers 10 and the table 13 has four compartments 132 co-operating with suction devices in the form of lengths of concertina hose 15 connected to a common suction hood 17. Suction holds the filling 11 in contact with grids 191 carried by caps 19. When the table 13 is withdrawn to the position seen in Fig. 6 (not shown), the caps 19 are moved downwardly to break contact with sealing washers 153, downward movement of the hoses 15 being limited by means illustrated in Fig. 3 (not shown). Fig. 1 (not shown), shows linkage mechanism for synchronizing these movements. In a modification (not shown) the caps 19 are fixed to the hoses 15 and mechanically operated valve means breaks the vacuum when required.
Patent GB-1413494-A (GB)
Title: Electrolytic treatment of copper foil
IPC: G01N33/00
Filed: 1972-10-09
Abstract: 1413494 Electro-coating copper foil to improve bonding thereof YATES INDUSTRIES Inc 9 Oct 1972 [8 Oct 1971] 46444/72 Heading C7B [Also in Division H1] Copper foil is treated to improve its bond strength to a substrate, e.g. for use in printed circuits, by electro-coating from a bath containing copper and arsenic, antimony, bismuth, selenium, or tellurium to provide a first dendritic, microcrystalline layer containing predominantly copper but also some of the other element(s) listed above; and thereafter electro-coating with a sound layer of copper which conforms to the configuration of the first layer so as to reduce the powder transfer characteristics of the first layer. A third copper layer may be electro-deposited on to the second layer, which third layer is less coherent than the second layer but more coherent than the first layer. The third layer may also contain As, Bi, Sb, Se or Te. The foil may be coated by continuous passage through the relevant baths. The anodes used may be of Pb.
Patent GB-1512589-A (GB)
Title: Projectile
IPC: F42B14/02
Filed: 1976-11-08
Abstract: 1512589 Guide rings for projectiles RHEINMETALL GmbH 8 Nov 1976 [15 Nov 1975] 46475/76 Heading F3A A fin-stabilized projectile for firing from a smooth or rifled bore barrel comprises a rotatable, twist-reducing guide ring of a material deformable with respect to the barrel and being composed of a number of segments 3a held together by securing means. The securing means may be a segmented U-shaped cage 6a, an external ring, or the lip of a cartridge casing. The guide ring may be freely movable in a groove formed in the projectile or it may be arranged so that it cannot be moved until a certain frictional force has been overcome. The guide ring falls away from the projectile in flight.
Patent GB-1082026-A (GB)
Title: Improvements in metallocenylaryl-substituted organosilicon compounds
Inventor: WILKUS EDWARD VINCENT
IPC: C07F17/02
Filed: 1965-11-04
Abstract: The invention comprises metallocenylaryl-substituted-organosilicon compounds having one or two silylaryl radical of formula A1(A)2SiR11-attached to a metallocene nucleus composed of a transition metal chemically combined with two cyclopentadienyl radicals, whose other free valencies are satisfied with monovalent radicals selected from hydrogen, electron-donating organic radicals, electron-withdrawing organic radicals, and mixtures thereof, where A is selected from hydrogen, halogen radicals, halogenated and unhalogenated monovalent hydrocarbon radicals, cyanoalkyl radicals, fluoroalkyl radicals alkoxy radicals, A1 is selected from A radicals and the hydroxy radical and R11 is an arylene radical. Preferred compounds are those of formulae (1) R3SiR11Z and (2) (R3SiR11)2Z1 where R is selected from hydrogen, halogen radicals, halogenated and unhalogenated monovalent hydrocarbon radicals, cyanoalkyl radicals and fluoroalkyl radicals, R11 is an arylene radical and Z is a metallocene radical of formula -[-Q4C5]M[C5Q5] where M is a transition metal chemically combined with two cyclopentadienyl radicals and Q is a monovalent radical selected from hydrogen, monovalent electron-withdrawing radicals and monovalent electron-donating radicals and Z1 is a divalent metallocene radical of formula -[-Q4C5]M[C5Q4-]-.  The compounds of Formula (1) are prepared by reacting a Grignard reagent of formula ZR11MgX with a halosilane of formula R3SiX where R, R11 and Z are as defined and X is a halogen radical while those of Formula (2) are prepared by reacting a di Grignard of formula XMgR11Z1R11MgX with the above halosilane.  Examples describe the preparation of trimethylsilylphenylferrocene, 1,11-bis(p-trimethylsilylphenyl) ferrocene and p-trimethylsilylphenylmethenocene.  The preparation of polymers, e.g. by hydrolysis, from some of the compounds of the invention is referred to.  These polymers may be blended with fillers and may be cured by the use of organotris-cyloxy silanes or by ethylorthosilicate and a metal soap.  The compounds of the invention may also be used to stabilize poly-siloxanes against degradation by U.V. rays, heat, oxidation &c.ALSO:Haloarylmetallocenes are prepared by adding with stirring to a solution of 100 parts by weight of a metallocene and 500 parts by weight of 96% sulphuric acid, at a temperature of about 25 DEG  C., a mixture obtained by diazotizing 86 parts by weight of a haloaniline in 500 parts by weight of 20% sulphuric acid at 0 DEG  C. to 5 DEG  C.  After 24 hours the mixture is filtered and extracted with benzene and 100 parts by weight of zinc dust are added to the filtrate.  The resulting mixture is stirred for about one hour and extracted with ether.  The ether is stripped and the residue steam distilled to remove unreacted metallocene. The product is again extracted with ether and recrystallized with 90% acetic acid. Examples describe the preparation of p-bromophenylferrocene, 1,11-bis (p-bromophenyl) ferrocene and p-bromophenylruthenocene.
Patent GB-1128786-A (GB)
Title: Processes for the preparation of 11-substituted steroids, products thus obtained, and compositions incorporating them
IPC: C07J41/00
Filed: 1966-10-21
Abstract: 1,128,786. Steroids. ROUSSEL-UCLAF. 21 Oct., 1966 [22 Oct., 1965; 1 March, 1966; 19 April, 1966; 20 April, 1966; 1 June, 1966; 12 July, 1966], No. 47255/66. Heading C2U. A novel 11-R-gona-4,9-dien-3-one (wherein R represents an alkyloxy, aralkyloxy, alkylthio, aralkylthio, thio or azido group) is obtained in a process in which the corresponding 11- hydroxy-gona-4,9-diene-3-one is reacted with an alkanol, aralkanol, alkylthiol, aralkylthiol, a sulphide or alkali metal azide in the presence of a strong acid to yield the desired 11-R-gona- 4,9-diene-3-one. Specified alkanols are methanol, ethanol, iso-propanol or t-butanol and specified alkyl mercaptans are methyl-, ethyl-, propyl- or n-butyl mercaptan. The strong acid may be perchloric, sulphuric, phosphoric or p-toluene sulphonic acid or boron trifluoride. Preferred substituents are a 7α-methyl group, a 13#-methyl or 13#-ethyl group, the 17-oxo group, a 17#-hydroxy group, a 17#-benzoyloxy group, a 17#-methoxy group or 17#-ethoxy group and a 17#-hydroxy group together with a 17α-allyl group, a 17α-ethynyl group or a 17α- methyl or 17α-ethyl group. Pharmaceutical compositions containing the above compounds and having hypocholesterolemiant and estrogenic action as well as a hypophysis inhibiting effect are administered orally, perlingually, transcutaneously or rectally.
Patent GB-1471878-A (GB)
Title: Valve assembly
IPC: F16K11/07
Filed: 1973-10-10
Abstract: 1471878 Valves CAM GEARS Ltd 1 Oct 1974 [10 Oct 1973] 47306/73 Heading F2V A relief valve comprises a casing slidably containing a spool 26 which normally allows flow between an inlet 6 and a first outlet 8 but blocks flow to a second outlet 10, and a plunger 44 which moves spool 26 to communicate inlet 6 and outlet 10 when a control pressure exceeds a given value. The valve forms part of a vehicle power steering system in which inlet 6 is connected to a pump (54, Fig. 2, not shown), outlet 8 leads via check valve 64 to an accumulator (56) and a power piston, and outlet 10 leads to a reservoir (52). The accumulator pressure is communicated via passage 68 and slots 5 in sleeve 14 to act on slit 3 in the left end of plunger 44 and via the clearance between pin 85 and plunger bore 20 to a diametral passage 22 in the plunger. When this pressure becomes excessive plunger 44 and spool 26 are urged rightwards against the bias of spring 48. When the ends of plunger passage 22 move beyond sleeve 14 the accumulator pressure acts on the full area of the left end of spool 26, which is greater than that of plunger 44, thus causing the spool to move rightwards at a greater rate to a position in which inlet 6 communicates with relief outlet 10. Spring 48 returns spool 26 leftwards when the accumulator pressure falls. Any fluid trapped at the left end of the spool during such movement escapes to outlet 10 via spool passage 62. In the arrangement shown outlet 8 always communicates with inlet 6, but in a modification (Figs. 3, 4, not shown) outlet 8 is blocked when relief outlet 10 is open. In this modification plunger bore 20 and passage 22 are replaced by a slot extending part-way along the sliding surface of the plunger. The fluid may be oil or gas.
Patent GB-1260046-A (GB)
Title: Surgical appliance
Inventor: HOWSE DEREK LESLIE
IPC: A61F2/32
Filed: 1969-09-25
Abstract: 1,260,046. Artificial hip joints. D. HOWSE & CO. Ltd. 26 Aug., 1970 [25 Sept., 1969], No. 47343/69. Heading A5R. A hip cup 3 for use with a femoral head prosthesis 1 has a continuous internal bearing surface, consisting of more than half of a sphere. The cup is preferably made of high density polyethylene or other flexible material. The lip 4 preferably extends about “ inch beyond the equatorial plane 5 of the cup. The outer surface of the cup is grooved to receive cement.
Patent GB-1370335-A (GB)
Title: Self-priming side-impeller centrifugal pump
IPC: F04D9/02
Filed: 1971-10-14
Abstract: 1370335 Priming centrifugal pumps RULE INDUSTRIES Inc 14 Oct 1971 [16 Oct 1970] 47752/71 Heading F1C In a centrifugal pump comprising an impeller 11 rotating about a horizontal axis within a chamber 9, a reservoir 35 communicating with the chamber and a suction duct 22 communicating with the top of the reservoir, the capacity of the reservoir above the level B required for priming being such that liquid can be drawn up the suction duct and into the reservoir before the level in the reservoir falls below the level B, and the reservoir and suction duct are formed by an end plate 30 arranged parallel to, but spaced apart from a wall 15 of the chamber 9 and a series of partition walls 26 extending between the wall 15 and the end plate. The ascending suction duct 22 is connected to the reservoir 35 by a transverse conduit 28 and a descending conduit 24 or by an inverted V or loop. The partition 32 underlying the transverse conduit 28 breaks any siphon action. Preferably, lateral extensions 36 are provided to increase the volume of the reservoir 35. The minimum quantity of liquid stored in reservoir 35 above the level B should be at least equal to the volume occupied by the quantity of air which can be contained at atmospheric pressure between the end of the suction duct 22 and the surface of that minimum quantity of liquid in the reservoir when that quantity of air is at a pressure less than atmospheric by a pressure equivalent to the height of the column of liquid which can be contained in the suction duct. Preferably, the minimum quantity of liquid is at least 1À5 times as great as the volume contained between the end of the suction duct and the liquid level.
Patent GB-478728-A (GB)
Abstract: 478,728. Electromagnetic interrupters. HAUBER, F. April 18, 1936, No. 11149. Void. Convention date, April 19, 1935. [Class 38 (v)] An electromagnetic interrupter for automatically effecting the periodic supply of current to heating apparatus, motors and the like, comprises a continuously operated tilting mercury switch 1 which is arranged to be angularly adjustable relative to the operating mechanism, so that variation can be made in the time during which the switch is closed. As shown in the Figure, a rockinglever 9 carries at one end the core 14 of the operating solenoid 13 and at the other end the piston 22 of a dashpot 20 operating with a retarded return stroke under the action of a spring. The circuit of the coil 13 is interrupted between contacts 16, 17 of a mercury tilting switch 15 mounted on the lever 9, which is thus maintained in oscillation. The controlled switch consists of a second mercury tube 1 secured on a spindle 2 to which is attached a pinion 10 forming part of a rack-and-pinion drive, the rack member 11 terminating at its lower end in a screwed portion carrying nuts 12 so that the rack member may be adjusted in relation to the oscillating driving lever 9. By means of this adjustment the point of operation of the switch and the duration of its closure may be varied between permanently closed and permanently open positions. In a modified arrangement, Fig. 2 (not shown), the angular setting of the controlled tilting switch may be varied through a geared drive provided with an indicating scale.
Patent GB-1132226-A (GB)
Title: Improvements in and relating to reversible counters comprising bistable magnetic cores
IPC: H03K23/76
Filed: 1965-11-11
Abstract: 1,132,226. Reversible ring - counters. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 Nov., 1965 [14 Nov., 1964], No. 47902/65. Heading G4A. [Also in Division H3] In a reversible magnetic-core ring counter each digit comprises a pair of magnetic cores A, B, Fig. 3, having two stable states of forced oscillation, the coupled secondary windings N2A, N2B being in series with a control voltage determined by input UO and series resistance rc, whereby voltages induced in the secondary winding of one core when alternately changing state due to alternately applied voltages at the primary windings N1A or N1B may or may not cause corresponding alternating changes in state of the other core. The arrangement of the core pairs A, B with feed-back windings WA, WB in series with the primary windings N1A, N1B is such that a " 1 " digit state is represented when the control voltage is such that both cores A and B are repeatedly changed simultaneously under inputs alternately applied at GA, GB from a square wave generator, Fig. 4 (not shown), whereby a heavy current is drawn through RL and the relevant lamp G is lit. A " 0 " digit state is represented when the states of the single cores A or B are alternately changed by the alternating input whereby a minimum current is drawn through each load resistor RL. In Fig. 3 with the core pair Z1 in set " 1 " condition and lamp G lit, pulses to be counted at V or R (for forward or backward counting) cause transistor Tr1 to short-circuit rc whereby the control voltage applied to the secondary windings N2A, N2B of all the core pairs Z(0-9) is raised. Core pair Z1 is thereby changed to the " 0 " stable oscillating state and the load voltage at UL raised due to the reduced current flowing. The counting pulses at V or R also ground the points PV or PR, Fig. 5 (not shown), for forward or backward counting, so that when the load increases at VL under a counting pulse it is differentiated through CV or CR and applies a control voltage across RCV or RCR in the adjacent stages ZO or ZR. This control voltage opposes UO whereby the adjacent core pair Z0 or Z2 now changes to the " 1 " stable oscillating and indicating state. The counter contents may be erased by raising the control voltage simultaneously at all the stages by shunting the common control resistor rc. Desired digits may be set by applying positive voltages at inputs E0-E9 so that the control voltage is transiently reduced through relevant capacitors CE to change the oscillating state.
Patent GB-1019155-A (GB)
Title: Improvements in or relating to cutting apparatus
IPC: A23N15/04
Filed: 1963-12-04
Abstract: 1,019,155. Endless conveyers. J. J. CHARNAUD. Dec. 3, 1964. [Dec. 4, 1963], No. 47910/63. Heading B8A. [Also in Division A4] An endless belt 12 for conveying vegetables &c. between circular saws 16 is provided with a plurality of vegetable &c. holding members 14 comprising curved plates secured at their rear transverse edges by rivets or screws 15 or by a flexible hinge to the belt 12 whereby the free edge of each holding member 14 separates from the belt 12 as it passes from the top to the bottom run to release the trimmed vegetable. One reversing roller 10 is driven, e.g. by an electric motor 13 through a reduction gear 13<SP>1</SP> or by other means.
Patent GB-1241180-A (GB)
Title: Hydraulic booster motor
IPC: F15B9/10
Filed: 1968-10-10
Abstract: 1,241,180. Hydraulic brakes; vehicle brake pedal arrangements. EATON YALE & TOWNE Inc. 10 Oct., 1968 [6 Nov., 1967], No. 48030/68. Headings F2E, F2F and F2L. In an hydraulic booster motor having an enclosed casing 21 with spaced inlet (27) and outlet (19) ports in the casing, the inlet port 27 is connected to a fluid source such as a pump 13 and the booster motor comprises a piston 37, fixed relatively to a slidable rod 35, the piston having a by-pass passage 47 continuously connecting the inlet chamber 40 with the outlet chamber 41 and passages 43, 45 and 46 provided in the piston-rod 35 and adapted to be controlled by a slidable valve sleeve 30 integral with a valve rod 28 operated by a pedal 14 such that throttling of the passage 43 takes place to increase the fluid pressure in the inlet chamber 40 to affect sliding movement of the piston and the piston rod 35 to the left, as shown in the drawing, to operate the brakes or to disengage a clutch (not shown). The by-pass passage 47 in the piston 37 enables flow at all times to take place from the pump 13, between inlet chamber 40 and outlet chamber 41, through suitable conduits 16 to connect a power steering valve 11, a fluid sump 12 and the pump 13. In the normal position shown in the drawing, a stop pin 50 is urged against the end 52 of the radial groove 53 in the valve sleeve 30 and the valve sleeve end 33 is positioned to uncover passage openings 44 in the extension 42 and in the normal position by the provision of a bias spring 31. A plug member 48 inserted in the end of the extension 42 blocks the fluid path in the portion of the passage 45 that extends to the right of the drawing from the passage 43.
Patent GB-1358260-A (GB)
Title: Process for preparing a margarine aqueous phase
Inventor: REK J H M
IPC: A23D7/01
Filed: 1970-10-09
Abstract: 1358260 Aqueous dispersion for margarine UNILEVER Ltd 7 Oct 1971 [9 Oct 1970] 48071/70 Heading C5C An aqueous dispersion suitable for use as the disperse phase in margarine is made by dispersing whole vegetable phosphatides, a liquid oil and common salt in an aqueous medium to give a pumpable, stable, homogeneous dispersion, wherein the weight ratio between the vegetable phosphatides and the liquid oil is from 1 : 2 to 1 : 12. Examples of phosphatides used are lecithin, soya bean-, crude maize-, crude rapeseed phosphatides. Examples of liquid oil are groundnut oil and sunflower oil. To facilitate the formation of a fine dispersion the pH of the aqueous medium is kept at 8-12 before the phosphatides are added and during the dispersing. The pH is then lowered to 6-7 by addition of phosphoric acid. The aqueous medium can contain Ca and Mg salts and <1À0% milk protein.
Patent GB-1395247-A (GB)
Title: Manufacture of panels
IPC: E04F13/08
Filed: 1972-10-19
Abstract: 1395247 Forming panels OMNIUM DE PROSPECTIVE INDUSTRIELLE 19 Oct 1972 [21 Oct 1971] 48229/72 Heading B5A Panels, are formed by assembling units, e.g. of ceramic, on a support, filling the spaces therebetween with a granular thermoplastic material, and heating to below the degradation temperature of the thermoplastic material in contact with ambient air for sufficient time to oxidize the thermoplastic material to form oxygen-containing polar groups therein. The support may be a sheet of paper which is subsequently removed. The visible side of the units is preferably stuck on to the temporary support, the space between the units filled with the granular thermoplastic and the assembly vibrated or subjected to an air current to remove granules from the upper side of the units. The support may alternatively be coated with oil. The units may have a convex face; in this case, the flat side is placed on to a porous support, e.g. gauze after applying a layer of granules to the support.
Patent GB-1521493-A (GB)
Title: Manufacture of magnetic tape cassettes
IPC: G11B23/113
Filed: 1975-11-25
Abstract: 1521493 Assembling and loading tape cassettes BASFAG 25 Nov 1975 [26 Nov 1974] 48338/75 Heading B8M Manufacturing assembly of prefabricated components of, and loading of a magnetic tape within, cassettes are effected in an uninterrupted series in a production line by mechanical operations. The tape is wound at high speed into a pack which is inserted and positioned in each cassette half portion of the housing directly during a suitable phase of manufacture and before the two half portions of the housing are united to effect closure thereof. The exact positioning of stationary and moving functional elements of the cassette including the reels and the operation of winding the tape with leaders attached thereto are effected by and on an adjustable support carrying a winding disc, Fig. 2a (not shown), and formed with accurately dimensioned and shaped compartments and recesses. One half housing is placed on the support so that all the components (including the wound pack) are transferred in correct location to such housing, the support is raised therefrom, Fig. 3a (not shown), and housing closure is completed. The transfer of elements may be aided by ejector pins acting through bores associated with the compartments and recesses. The winding disc has a releasable brake and is adapted to be driven for short periods (with the brake off) by an externally driven tapered mandrel not forming part of the support, Fig. 4.