baber/WOPTO huggingface dataset:
Patent GB-1177876-A (GB)
Title: Process for Producing Catalysts from Raney Alloys
IPC: B01J23/00
Filed: 1968-08-21
Abstract: 1,177,876. Raney catalysts. SIEMENS A.G. 21 Aug., 1968 [30 Sept., 1967], No. 40093/68. Heading B1E. [Also in Division H1] A process for the production of a Raney catalyst from a Raney alloy formed from a catalytically active metal and an inactive component, comprises dissolving the inactive component out of the Raney alloy with an alkaline or acidic solution in a reaction vessel, and reducing the pressure in the reaction vessel at least once to a sub-atmospheric pressure whereby the release of the hydrogen gas formed in the pores of the Raney catalyst is expedited. Specified active metals are Ni, Ag, Co, Fe and Cu, and inactive components are Al, Si and Zn. In the Example a Raney Ag catalyst prepared as above is used as a pulverous O 2  electrode in a fuel cell reaction.
Patent GB-1498230-A (GB)
Title: Drive transmission device for incorporation in an outboard motor
IPC: B63J3/02
Filed: 1975-10-01
Abstract: 1498230 Change-speed gear VOLVO PENTA AB 1 Oct 1975 [2 Oct 1974] 40181/75 Heading F2D [Also in Division B7] A reversing gear disposed between the engine output shaft 14 and the propeller drive shaft 20 of an outboard motor includes a gear shift bar 66 having low speed forward and reverse drive positions, a fast forward drive position and a neutral position. As shown the bar 66 is in the low speed reverse position. In this position a sun-wheel 52 on the shaft 14 drives an internal ring gear 55 via planetary gears 54 rotatable on pins 59, the ring gear 55 being locked by pins 61 to an end plate 60 fixed to the drive shaft 20. To select neutral the bar 66 is moved downwardly to disengage the pins 59 from holes 13 in the motor casing 12 and simultaneously retract the pins 65 from the end plate 60, Fig. 3 (not shown). Continued downward movement of the bar 66 selects, in turn, slow and fast forward speed. In the slow speed position, the ring gear 55 is locked by the engagement of a dog 68 on the bar 66 with teeth 56 on the ring gear and the pins 59 extend into holes in the end plate 60. Thus the planetary gears 54 roll around the sun-wheel 52, their pins 59 driving the end plate 60, Fig. 4 (not shown). Fast forward speed occurs when the sun-wheel, planetary and ring gears, and the end plate 60 are locked together by further lowering of the pins 59.
Patent GB-907767-A (GB)
Title: Improvements in or relating to a laminating process
IPC: C08J5/18
Filed: 1960-11-22
Abstract: 907,767. Retreading tyres. HERCULES POWDER CO. Nov. 22, 1960 [Dec. 2, 1959], No. 40186/60. Class 144 (2). [Also in Group VIII] In making pneumatic tyres or retreading worn tyres, a tread layer of a cross-linked copolymer of ethylene and propylene is secured to a sulphur-vulcanized natural or synthetic rubber carcass, by interposing between them a layer of a rubbery partly brominated isoolefinpolyolefin interpolymer and subjecting the assembly to heat and pressure to vulcanize the interpolymer and copolymer. The rubber may be a polymer of at least one compound selected from butadiene, methyl butadiene, di-methyl butadiene, isoprene, pentadiene, and chloroprene, also copolymers of such conjugated diolefins with other unsaturated organic compounds such as styrene, acrylonitrile, and isobutylene. The middle layer, which may be a preformed sheet, or a cement, or both, may be an interpolymer of an iso-olefin containing from 4 to 8 carbon atoms such as iso-butylene, 3- methyl-butene-1, 4-methyl pentene-1, and an aliphatic conjugated polyolefin of from 4 to 18 carbon atoms, e.g. butadiene 1 : 3, isoprene, 2.4- dimethyl butadiene-1.3, dimethallyl, 2-methyl hexadiene-1,5, cyclo-hexadiene, 1-vinyl cyclobutene-2, dipentene, 2.6-dimethyl-4-methyleneheptadiene-2.5, myrcene, ocimene, fulvene, 6.6-diphenyl fulvene, 1,3,3-trimethyl-6-vinylcyclohexadiene 2.4, 6.6-vinyl methyl fulvene. The bromine content of the interpolymer is above 0.5% by weight but below that which' corresponds to complete saturation of the olefine bonds. In addition, the partially brominated interpolymers may be vulcanized in the absence of sulphur, with bivalent metal oxides such as zinc oxide. The cross-linking agent for the copolymer may be an organic peroxide, e.g. di-benzyl peroxide, bis-(α,α-dimethyl benzyl) peroxide, bis-(α,α-di-isopropyl naphthyl methyl) peroxide, t-butyl (penta methyl ethyl) peroxide, di-(tri-ethyl methyl) peroxide, benzoyl peroxide, t-butyl perbenzoate, ethyl percamphorate, di-tbutyl peroxide, benzoperacid, t-butyl-hydroperoxide, p-menthyl (α,α-methyl benzyl) peroxide, and pinanyl (α,α-di-methyl benzyl) peroxide. In addition to the peroxide vulcanizing agents other than auxiliary agents may be used, e.g. sulphur, red lead, and quinone dioxime. The cement mentioned above may be a solution or dispersion in an inert organic solvent such as gasoline, toluene, chlorobenzene, hexane, heptane, trichloroethane and carbon tetrachloride. Specifications 810,023, 810,024, 856,733, 856,736 and 856,737 are referred to.
Patent GB-1376530-A (GB)
Title: Fuel tanks
IPC: B60K15/01
Filed: 1972-08-30
Abstract: 1376530 Venting fuel tanks DAIMLERBENZAG 30 Aug 1972 [10 Sept 1971] 40244/72 Heading B8X A container 5 is mounted in the uppermost region of a fuel tank and is formed in its lowermost wall with a small aperture 8, so that when the tank is filled to its highest level (as shown, the level of shoulders 22) the fuel level in the container will rise more slowly than in the tank to leave a volume of air adequate for likely expansions in the volume of fuel. A pipe 17 is provided for venting air to or from the tank. Passages for vent air exist from the container via tube 10 and annular gap 18 to a dome 9, and from the tank via ducts 12 (formed in an insert 13) and annular gap 21 to the dome 9. During surges of fuel within the container 5, upper lateral extensions 20 of the container accommodate the fuel and lessen the risk of fuel entering tube 10 or pipe 17. The labyrinth form of duets 12 and the narrowness of gap 21 lessens the risk of fuel entering the dome 9 from the tank. The provision of a flange 16 and the narrowness of gap 18 lessens the risk of fuel entering the container 5 from the dome 9. In a modification, Figs. 4 and 5 (not shown), tube 10 and container 5 are a one-piece plastics construction, the upper surface of flange 16 abuts the top of dome 9 and is formed with radial grooves, and the upper surface of the container 5 abuts the lower surface of the tank roof and is formed with grooves defining the ducts 12.
Patent GB-1293055-A (GB)
Title: Improvements in or relating to splints
IPC: A61F5/01
Filed: 1970-08-21
Abstract: 1293055 Splint FISHER & PAYKEL Ltd 21 Aug 1970 [29 Aug 1969] 40296/70 Heading A5R A splint for use with a fractured femur comprises a malleable discontinuous ring 1 attached to a pair of extendible legs 4 terminating in a foot portion; the legs being held firmly at fixed positions on the periphery of the ring and pivotably around the plane of the ring. End portions 6 of the legs have apertures 5 for receiving the ring and are retained in position on the ring by enlargement of the ring on either side of them. The legs comprise upper tubular portions 3 into which the lower portions of rod are inserted telescopically and fixed by compression clamps which may be locked adjustment of leg length and thus of the ring obliquity is therefor possible. Hooks 16 on an elastic cord 15 provide traction to the leg when attached to the leg or boot of the patient. The ring is covered with a flexible resilient material 8 which in turn is coated with soft leather 9, and which is continued to provide an overlap over the broken part of the ring. In a portable embodiment of the splint the tubular portions of the legs are formed in sections (31) (Fig. 4 not shown) which are assembled and connected to end portions 28 on the ring by the connection of male and female threaded joints. The splint may be dismantled and packed into a bag when the ring may be used as a handle. A tubular sling (40) may be slid around the splint, and a sling (27) attached to the splint by means of studs (24) has hook and eye type fasteners (25) (26) for engagement of the sling around the splint, Fig. 2 (not shown).
Patent GB-1164464-A (GB)
Title: Centrifugal Separators
IPC: B04B13/00
Filed: 1966-09-09
Abstract: 1,164,464. Centrifugal separators. WESTFALIA SEPARATOR A.G. 9 Sept., 1966 [17 Sept., 1965], No. 40423/66. Addition to 984738. Heading B2P. In a centrifugal separator for clarifying liquids automatic partial desludging through apertures in the wall of the separator drum is carried out by arranging a pressure-operated electric switch in a probe liquid line which leads into the drum so that, when the opening of this line into the drum is closed by centrifuged sludge or by a centrifuged liquid component heavier than the other constituents of the liquid being clarified, the switch is actuated to operate a valve in a line through which pressure fluid is directed to a member in the drum controlling the opening and closing of the sludge discharge apertures. The operation of the control member for the apertures may be dependent upon the increase or decrease of pressure in the pressure fluid line, i.e. upon the opening or closing of the valve. The control member may be in the form of a piston. As shown, liquid to be clarified is fed to the drum of a centrifuge 1 through a line 2, and the clarified liquid is continuously discharged through a line 3. The sludge is discharged intermittently into an outlet 5 via apertures into the wall of the separator drum which are opened and closed by a sliding piston operated by pressure fluid supplied through a line 4 which incorporates a solenoid control valve 11. Probe liquid is fed via a line 6 which incorporates a float-operated switch 7-10 and which opens into the sludge chamber within the separator drum. During centrifugation, as soon as the opening of the line 6 within the sludge chamber is covered by accummulated sludge, the probe liquid level in the float chamber 7 of the switch rises until the float 8 makes electrical contact with pins 9, 10. This completes an electric circuit whereby the normally closed valve 11 opens and admits pressure fluid through the line 4 to the piston causing it to open the sludge discharge apertures until the receding ring of sludge uncovers the opening of the probe liquid line. The liquid level in the float chamber 7 then drops causing the float 8 to break contact with the pins 9, 10 to interrupt current to the valve 11 which is thereby closed so that the piston closes the sludge apertures. To control the time during which the sludge discharge apertures remain open the pins 9, 10 may be in the form of resiliently biased pins so that the amount of time the pins are in contact with the float 8 may be varied. An adjustable delay element 12 may also be included in the circuit which, on closure of contacts 9, 10, activates a switch 13 bridging the contacts 9, 10, and thus keeps the valve 11 open for a set time after the float 8 has broken contact with the pins 9, 10.
Patent GB-1378915-A (GB)
Title: Process for producing a block copolymer
IPC: C08F297/00
Filed: 1972-08-31
Abstract: 1378915 Block copolymerization SUMITOMO CHEMICAL CO Ltd 31 Aug 1972 [31 Aug 1971] 40468/72 Heading C3P A block copolymer is obtained by (i) polymerizing an alkenyl aromatic hydrocarbon in the presence of an organomonolithium catalyst, (ii) continuing the polymerization in the presence of the unreacted alkenyl aromatic hydrocarbon by addition of a conjugated diene and (iii) completing the polymerization of the rest of the alkenyl aromatic hydrocarbon in the presence of a chelating bi- or tri-functional Lewis base which is a ditertiary diamine or a tris-(dialkylamino)phosphine oxide. The base may be added at the commencement of stage (iii) or it may be added earlier. The process may may be effected in bulk or in solution. In the examples, styrene, α-methylstyrene and α,p-dimethylstyrene are polymerized in the presence of n-butyl lithium, in solution in toluene or in one case in bulk for stage (i) and then in toluene, with addition of isoprene in step (ii) in each case and addition of tris-(dimethylamino)phosphine oxide or N,N,N<SP>1</SP>,N<SP>1</SP>-tetramethyl-1,2-ethane diamine when a colour change indicates exhaustion of the diene and the start of stage (iii).
Patent GB-1355527-A (GB)
Title: Camera having a socket for a flash unit
IPC: G03B15/04
Filed: 1971-08-31
Abstract: 1355527 Photographic cameras AGFAGEVAERT AG 31 Aug 1971 [31 Aug 1970] 40573/71 Heading G2A A camera having a socket for, e.g., a percussive flash-cube 17 of the kind having integral strikers 9, is alsoprovided with a detector lever 8 for sensing the condition of a flash-lamp by sensing the presence or absence of a striker 9, the detector lever 8 being connected with an indicating tab 3a so that the tab is visible in the camera view-finder 2a, 2b when a used bulb is sensed. As shown, an unused bulb is sensed, the lever 8 engaging the associated striker 9. When the bulb is fired, the lever end 8a rises (as seen), thus the lever 8 pivots and its control arm 8b displaces a pawl 10 from a notch 3c of a lever 3 carrying the tab 3a. The lever 3 is then pivoted by a spring 5 to bring the tab 3a into the view-finder. As the cube 17 is rotated clockwise (as seen), an edge 17b pivots the lever 8 clockwise, thus the arm 8b carries the lever 3 along until the pawl 10 re-engages the notch 3c. Removal of the flash-cube allows a lever 14 to pivot anticlockwise so that an arm 14b thereof meets the arm 8b which as before removes the tab 3a from the view-finder.
Patent GB-1200406-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D14/10
Filed: 1968-08-26
Abstract: 1,200,406. Gas burner. JUNKERS & CO. G.m.b.H. 26 Aug., 1968 [25 Aug., 1967], No. 40669/68. Heading F4T. To reduce corrosion around the main burner openings 11 disposed along a ridge 14 on a gas burner distribution manifold 13 which has longitudinal depressions 17 in each of its side walls 16 which, in co-operation with cover strips 19 and 20 attached to the side walls 16 and abutting the sides of the ridge 14, form auxiliary gas chambers 21 into which gas from the manifold flows via bores at position 18 and burns on exiting from auxiliary openings 22 in the cover strips, the cover strips are made of a material (such as chrome steel) which has higher thermal conductivity than the manifold-material (chrome nickel steel) so that heat is conducted away from the ridge 14.
Patent GB-1471562-A (GB)
Title: Papermaking machine
IPC: D21F1/00
Filed: 1974-09-18
Abstract: 1471562 Paper-making apparatus J M VOITH GmbH 18 Sept 1974 [20 Sept 1973] 40724/74 Heading D2A In a paper-making machine such as a cylinder machine the consistences of stock supplied to the stock inlet 6 is regulated in accordance with the pressure exerted on the forming surface by stock in the stock inlet. As shown, the output of a pressure sensor, such as load cell 16 in the stock inlet can be used to control a regulating valve 11, pump 12 or pump by-pass 19 in the stock supply, or to control the flow of white water from suction chambers 2-5 through ducts 15 into mixing vessel 13 to dilute the stock.
Patent GB-1166408-A (GB)
Title: A Crane having an Electromotor-Driven Hydraulic Pump
Inventor: ADOLFSSON KARL FRITJOE TORBJOR
IPC: B66C13/18
Filed: 1968-08-26
Abstract: 1,166,408. Luffing jibs on vehicles. K. F. T. ADOLFSSON. 26 Aug., 1968 [30 Aug., 1967], No. 40750/68. Headings B8E and B8H. The hydraulic luffing ram of a crane, comprising a telescopic jib 6, 6<SP>1</SP> pivoted between side members 12, 13 of a post 1, is actuated by an hydraulic pump 15 which, together with an electric pump motor 16, a reservoir 18 and a valve housing 19, is secured to the ram cylinder 10. The cylinder 10 is pivotally supported at 11 between the side members 12, 13, which are interconnected by plates 14, 14<SP>1</SP> and by the jib pivot 5. A swivel pin 2 is secured to the plate 14 and is rotatably mounted in a socket 3 in the base 4. The pump 15, motor 16 and reservoir 18 are protected by a removable cover 17. The crane may be mounted on a vehicle or on a fixed site.
Patent GB-1268655-A (GB)
Title: Discontinuous production of alkali metal salts of nitrilotriacetic acid
Filed: 1969-08-15
Abstract: 1,268,655. Alkali metal salts of nitrilotriacetic acid. BADISCHE ANILIN- & SODA-FABRIK A.G. 15 Aug., 1969 [17 Aug., 1968], No. 40917/69. Addition to 1,224,043. Heading C2C. Alkali metal salts of nitrilotriacetic acid are prepared by a two stage process, without continuous flow of reaction mixture through the process, in the first stage of which an alkali metal cyanide is reacted with formaldehyde in a stoichiometric ratio at a temperature of from 50 to 200 C. and a pressure of from 2 to 50 atmospheres gauge in the presence of excess ammonia to give a solution containing aminoacetate as the principal organic acid anion, decompressing the resultant solution to atmospheric pressure and treating it in one or more further stages with further alkali metal cyanide and formaldehyde at a temperature of from 60 to 110 C. whilst simultaneously removing ammonia to convert the aminoacetic acid into nitrilotriacetic acid. The different stages are preferably effected in separate vessels and the final product may be recovered from the aqueous solution by evaporation or spray drying.
Patent GB-1449882-A (GB)
Title: Prostaglandin analogues
IPC: C07C405/00
Filed: 1973-08-31
Abstract: 1449882 Silylated prostaglandins ONO PHARMACEUTICAL CO Ltd 30 Aug 1974 [31 Aug 1973] 41124/73 Headings C3S and C3U [Also in Division C2] Novel 16-methyleneprostaglandin derivatives of the formulae wherein R<SP>1</SP> is H or C 1-6  aliphatic hydrocarbyl, R<SP>3</SP> is C 1-12  alkyl and TMS is trimethylsilyl are prepared by reacting N-trimethylsilyldiethylamine or N,O-bis-(trimethylsilyl)acetomide with prostaglandins of the formula and, if desired oxidizing the corresponding 11α,15α - bis - trimethylsilyl - 16 - methyleneprostaglandin F 2 α alkyl ester thus obtained. Novel cyclodextrin clathrates of prostaglandins of the formula  wherein R<SP>1</SP> is H or C 1-6  aliphatic hydrocarbyl, R<SP>2</SP> is H or C 1-12  alkyl and (A) is a radical of the formula  are prepared by reacting the prostaglandins with cyclodextrins.
Patent GB-1237285-A (GB)
Title: Improvements in and relating to optical arrangements
IPC: G03B19/00
Filed: 1968-08-29
Abstract: 1,237,285. Multiple lens cameras. RICOH K.K. Aug.29, 1968 [Sept.11, 1967], No.41200/68. Heading G2A. Apparatus for photographing a number of objects on a single photo-sensitive sheet so that the objects may not be recognized from the photograph comprises an objective lens 11, a multiple lens 12 disposed between the lens 11 and the focal plane thereof for the sake of compactness, and an apertured plate 13 moveable in a plane perpendicular to the optical axis. An image A produced by the lens 11 is split by the lens 12 into a number of discrete erect portions which are recorded on a photo-sensitive sheet 14. Movement of the apertured plate 13 allows the split image of another object to be recorded on different portions of the sheet 14. The photographed objects may be individually viewed by using the apparatus with the direction of the light reversed.
Patent GB-855631-A (GB)
Title: Improvements in or relating to pulse-controlled frequency dividers
IPC: H03K5/00
Filed: 1958-12-22
Abstract: 855,631. Valve pulse frequency dividing circuits. ROHDE, L., and SCHWARZ, H., [trading as ROHDE & SCHWARZ]. Dec. 22, 1958 [Dec. 21, 1957], No. 41309/58. Class 40(6) A frequency divider comprises a monostable multivibrator wherein the capacitor voltage governing the return to the stable state is controlled automaticallty depending on the pulse frequency so as to permit operation over a range of input frequencies. As shown, a sine wave at terminal f is converted to a half frequency square wave by means of a bistable circuit 15. The half frequency square wave is differentiated and fed to a monostable multibivrator 16 wherein the recharging time constant of capacitor 12 and resistor 14 is made unusually large. Valve 10 is cut off by a negative pulse at time P1 and remains cut off for a time depending on the values of capacitor 12 and resistor 13. When capacitor 12 has discharged sufficiently, the next positive pulse at P3 drives valve 10 into conduction, cutting, off valve 11. Capacitor 12 now recharges linearly as shown in Fig. 4 until the next negative pulse arrives at time P1<SP>1</SP> to initiate a further cycle. Thus the charge on capacitor 12 is varied in the event of variation in the frequency of the incoming signal with the result that the discharge time is correspondingly varied thus enabling the circuit to operate over a range of input frequencies at the same division ratio.
Patent GB-857741-A (GB)
Title: Improvements relating to rotary pumps and motors
Inventor: PRENDERGAST CHARLES SCOTT
IPC: F04C14/22
Filed: 1958-12-23
Abstract: 857,741. Rotary motors and. pumps. BRAKESHOE INTERNATIONAL S.A. July 21, 1959 [Dec. 23, 1958], No. 41512/58. Class 110 (2). In a rotary pump or motor comprising three rotors mounted in a common casing, the central rotor 6 is of smaller diameter than that of the end rotors 7, 8, whereby it sealingly abuts same and obviates the use of partitions. The concentricity of the stator 9 of the rotor 6 is adjusted by a manual control 18, 19. The pressure chambers 12a, 13a of the end units are connected by a duct 16 to the outlet 10c of the central unit which has an inlet 10d, the inlet chambers of the end units being connected to a common inlet passage 17. The stator 9 is held in the full-flow position by fluid pressure fed to the gap between the said block and the outer casing 10 through a conduit 9f, the said gap communicating with the inlet side 9e of the central unit through a conduit 9g. In a modification, Figs. 5-8 (not shown), the inlet and outlet conduits of the central unit are in line with one another and the end rotors constitute cylindrical members concentrically disposed within an outer stator carrying opposed abutments. Specifications 816,556 and 819,565 are referred to.
Patent GB-1412637-A (GB)
Title: Method for producing ultra fine-grained microstructure in ferrous alloys
IPC: C21D8/00
Filed: 1972-09-07
Abstract: 1412637 Heat treating steel USS ENGINEERS & CONSULTANTS Inc 7 Sept 1972 [21 Sept 1971] 41637/72 HeadingC7A [Also in Division B3] A bainitic or martensitic structure is worked sufficiently to diminish the nucleating effect of grain boundaries, and is then annealed at a temperature between those of "austenite start" and "austenite finish" for a time sufficient to effect growth of equiaxed ultra fine austenite crystals, followed by cooling. In a preferred form the material is initially fully austenitized and then cooled to transform it to martensite or bainite prior to treatment as above. Preferably the annealing is carried out within a range of temperature extending for 150C from the 'As' temperature, while the deformation is such as to produce an increase of internal energy equivalent to that achieved by a 35% reduction in thickness of a ¢ inch plate. The composition may be such that the resultant structure after annealing remains austenitic, or alternatively that it transforms to pearlite bainite or martempered. In the latter case the cooling may be interrupted to produce a martensipered structure, or the martensitic structure may be tempered below As. Suitable compositions contain up to 25% Ni, up to 15% Mn, up to 1.2% C, up to 0.5% N, and balance Fe, with 15-21% Ni together with 0.009-0.053% C, and 5.7% Mn with 0.1% C, being particularly exemplified.