baber/WOPTO huggingface dataset:
Patent GB-1457731-A (GB)
Title: Compensated multifunction hydraulic system
IPC: F15B11/16
Filed: 1975-03-13
Abstract: 1457731 Hydraulic control circuits GENERAL SIGNAL CORP 13 March 1975 [28 March 1974] 10448/75 Heading F1P A compensated multifunction hydraulic system, Fig. 2, comprising two control valves 30, 30<SP>1</SP>, for controlling separate actuators and two pressure compensators 12, 12<SP>1</SP>, one of which, 12, controls flow from a supply line 29 to the compensator 12<SP>1</SP>, has pressure relief means 16 which allows fluid-flow in a line 138 so that the compensator 12 is able to permit flow to the valve 30<SP>1</SP> when the valve 30 is in a stalled condition. The latter condition arises when the actuator controlled by the valve 30 has reached the end of its stroke. In this condition the pressure in lines 36 and 138 becomes equal, so a spring 34 moves the spool of compensator 12 to the right and fluid is unable to pass to the valve 30<SP>1</SP>. Also, because the pressure drop across a throttle 42 becomes zero under stall conditions, the pump output drops, Fig. 1 (not shown). With the arrangement shown in Fig. 2, when the valve 12 is in stalled condition fluid pressure increases in the line 138 and the valve 16 opens to permit fluid-flow from line 90 to the tank T. This permits the higher pressure in the line 36 to move the compensator spool to a position where it diverts flow to the compensator 12<SP>1</SP> through a line 32. Fig 3 shows a second embodiment in which, when the valve 30 is in the stalled condition, pressure fluid flows through a line 238, valve 16 and a line 112 to operate an actuator 116 which moves the compensator spool to allow fluid to flow to the compensator 12<SP>1</SP>.
Patent GB-1143307-A (GB)
Title: Improvements in and relating to mounts for diapositives and the like photographic transparencies
IPC: G03B21/64
Filed: 1967-03-06
Abstract: 1,143,307. Film holders. M. BAERMANN. March 6, 1967 [March 10, 1966; June 18, 1966], No. 10454/67. Heading G2C. A diapositive mount comprising two frame components 1, 2 and two cover glasses 3, 4 is characterized in that the frame components are held together by magnetic attraction. As shown, each synthetic plastics frame is provided with a groove 7 into which permanent magnet frames 8, 9 are pressed. Masks 5, 6 are also provided. In another embodiment, Fig. 3 (not shown), one frame component is made of a rigid plastics material in which powdered permanent magnet materials have been embedded, and the other is made of a flexible permanent magnet material. In the embodiment of Fig. 5 (not shown) the component (19) is of sheet aluminium having a permanent magnet frame (20), the other being of a flexible plastics bonded permanent magnet material, or alternatively, Fig.8 (not shown), the second frame component may be of a magnetically conductive material.
Patent GB-126296-A (GB)
Title: Improvements in the Treatment of Zinc Bearing Ores for the Recovery of Zinc by Electro Deposition.
IPC: C25C1/16
Filed: 1919-04-28
Abstract: 126,296. Electrolytic Zinc Co. of Aus tralasia Proprietary, Ltd. April 27, 1918, [Convention date]. Zinc salts.-Solutions obtained from ores are purified by limestone and zinc dust or " blue powder," electrolyzed, and again used for treating ore. This cycle of operations us repeated until excessive cobalt, say more than 200-300 mgr. per litre, has accumulated. The solution is then freed from cobalt, say by either of the methods described in Specifications 131,702 and 131,998. After this the cyclic process is resumed. In one method for removing cobalt, the solution is treated, preferably at about 75‹ C., with zinc dust or blue powder in the presence of arsenic and preferably copper, 12-15 parts of zinc and 1¢ parts each of dissolved arsenic and copper being added for one part of cobalt. Addition of zinc is preferably effected in specified stages, a part of the copper and arsenic being kept back and added just before the last part of the zinc. In another method. lead peroxide is added to the solution containing a compound of manganese. Sixty parts of manganese and 6 of peroxide are employed for each part of cobalt. Calcium plumbate may be substituted for the peroxide. This treatment is preferably carried out at 40-50‹ C.
Patent GB-456210-A (GB)
Title: Process for the separation of the acylatable constituents of a substance mixture
IPC: C07C29/00
Filed: 1935-04-04
Abstract: The acylatable constituents of a substance mixture are separated from the non-acylatable constituents, by causing the mixture other than a germinal gland hormone preparation to react with a sulpho-carboxylic acid of the general formula <FORM:0456210/IV/1> where R indicates a substituted or unsubstituted aliphatic, alicyclic, aromatic, or heterocyclic residue.  The sulpho-carboxylic acid ester is then separated as a salt from the non-reacted compounds and the acylatable constituent required is recovered by saponification of the ester. The sulphocarboxylic acid is suitably brought into reaction as the chloride, and the reaction is preferably conducted in the presence of a tertiary amine such as pyridine, quinoline or dimethylaniline.  In this case the ester sulphonic acid is precipitated by means of an organic solvent such as benzine, benzene, or ether.  In an example the separation of myristic alcohol from paraffin oil is described, using as the separation medium m-benzoic acid sulphochloride in the presence of pyridine.  A preferred saponifying medium in the case of esters of the sterols is sodium ethylate.  Instead of m-benzoic acid sulphochloride, other carboxylic acid sulphochlorides can be employed.  Specification 450,325 is referred to.  Samples have been furnished under Sect. 2 (5) of (1) ethyl cetyl ether which has been separated from cetyl alcohol by the process of the present invention using as the condensing agent p-toluic acid sulpho-chloride, and (2) hydrofarnesol which has been separated from farnesan by the use of p-chlor-benzoic acid sulpho-chloride.  The mixture of hydrofarnesol and farnesan which was used to prepare sample 2 was obtained by the catalytic hydrogenation of farnesol.  The Specification as open to inspection under Sect. 91 comprised also examples which corresponded to samples (1) and (2) above. This subject-matter does not appear in the Specification as accepted.
Patent GB-891332-A (GB)
Title: Improvements in or relating to electrical switches
Inventor: BUTCHER ERIC JAMES
IPC: H01H5/00
Filed: 1959-03-26
Abstract: 891,332. Snap-action switches; cam-operated switches. WARD & GOLDSTONE Ltd. March 25, 1960 [March 26, 1959], No. 10548/59 Class 38 (5). A two-pole switch has one pair of contacts operated with a snap action and the other pair without, the arrangement being such that upon moving a common operating member to " make," the snap action contacts close after the others, whereas on " break " the snap action contacts open first. A suitable construction of snap action means is stated to be that disclosed in Specification 891,331. The non-snap action contacts need not have noble metal surfaces and the moving contact may be mounted on a spring blade acted upon by suitable cam means.
Patent GB-736719-A (GB)
Title: Improvements in or relating to means for securing propellers to the shafts thereof
IPC: B63H1/20
Filed: 1953-04-17
Abstract: 736,719. Securing elements to shafts. HOPE. J. G. A. WAY-, and PINNIGER, W. S. April 7, 1954 [April 17, 1953], No. 10569/53, Class 80 (2). A propeller 12, particularly for an outboard motor boat, is secured to its shaft 13 by means of a helical spring 17 one end 23 of which is engaged in a slot 24 in the end of the shaft and the other end 27 is engaged in a slot 28 in the hub 11 of the propeller. The spring and hub is secured in position axially against a collar 20 on the shaft by a washer 26 and a pin 32 which is passed transversely through the shaft at right angles to the slot 24 and secured by a spring arm 33 with a hooked end 34 engaging the part 32.
Patent GB-1214439-A (GB)
Title: Thermal shield system for a nuclear reactor vessel
Inventor: COSTES DIDIER
IPC: G21C1/02
Filed: 1970-03-05
Abstract: 1,214,439. Reactor shields. COMMISSARIAT A L'ENERGIE ATOMIQUE. 5 March, 1970 [10 March, 1969 (2); 4 April, 1969], No. 10657/70. Heading G6C. In a sodium cooled fast reactor the core 1 is mounted in the vessel 3 which is provided with a liquid sodium thermal shield 13 between the metal casings 13, 15 and the roof 12 and casing 15. The roof 12 is therefore maintained at a uniform temperature during reactor start-up and shut-down, thereby reducing mechanical stressing. The liquid sodium in the space 14 between casings 13, 15 is circulated by convection but in an alternative form the space 14 may be subjected to forced circulation. In a further embodiment, the sodium of the therma shield is circulated by the reactor coolant pumps which urge the coolant through the core and the heat exchangers within the pressure vessel.
Patent GB-1184612-A (GB)
Title: Switch Actuator for a Magnetic Reed Switch.
IPC: H01H36/00
Filed: 1967-03-07
Abstract: 1,184,612. Magnetic switches. SPERRY RAND CORP. 7 March, 1967 [27 April, 1966], No. 10725/67. Heading H1N. Switches in which a movable permanent magnet influences sealed reed contact units has a frame 30, for one or more switches, with notches 36 and 66 on opposite sides of bridging members 24 between which a pressure plate 40 is rockable in notches 36. The permanent magnet or magnets 52a, 52b are retained in slotted holders 50 projecting from the plate 40 which is provided with holes 47a, 47b and 47c as alternative anchorages for one end of a tension spring 72 having its other end secured to a retainer 62. One end of the retainer is a bar (Fig. 3, not shown) engaging in notches 66 and its other end rests against the frame 30. The switch is stable in either end position depending on the alternative anchorages of the spring 72. Fig. 6 shows an alternative spring retainer 80 providing snap-action bi-stable operation.
Patent GB-108014-A (GB)
IPC: C11B1/10
Abstract: 108,014. Engel, H. July 17, 1916. Fats and fatty oils, extracting by rendering.- An apparatus for extracting oils, fats, greases, and gelatine consists of an inclined extracting vessel 1 which communicates through a grating 5 with a chamber 8 which receives the extract. The vessel 1 may be provided with heating-coils 7 and mechanical stirrers 21, and the chamber 8 is provided with a removable heating-coil 9. The vessel 1 has manholes 2, 3 for charging and discharging, and the chamber 8 has a manhole 4 for the insertion or withdrawal of the heating- coil 9. The extracting-agent is supplied to the vessel 1 from a reservoir A by a valved pipe 6 and may pass through a heater B. The chamber 8 communicates with a still C from which the evaporated solvent passes by pipes 10, 11 to a condenser D from which it is returned to the reservoir A. The pipe 11 also communicates through a valve with the vessel 1.
Patent GB-124348-A (GB)
Title: Improvements in or relating to the Means or Method of Treating Peat so as to Render it more Adaptable or Useful as a Fuel.
Inventor: LEADBEATER JOHN WOOD
IPC: C10L5/14
Filed: 1918-07-02
Abstract: 124,348. Leadbeater, J. W. July 2, 1918. Composition fuel.-A porous and practically smokeless fuel is made by mixing peat, pitch, and coal or coke in granular form and heating the mixture to a temperature of about 800 to 1000‹ F. so as to eliminate tarry matters from the coal and melt the pitch, which is absorbed by the peat. The proportions of ingredients employed are 40-50 per cent of peat, 15-25 per cent of pitch, and 45-25 per cent of coal or coke. After the ingredients have been mixed, they are placed in a mould which is then put into a retort, or they are placed directly into the retort.
Patent GB-727204-A (GB)
Title: An improved apparatus for cutting sheets of material
IPC: B26D1/04
Filed: 1953-04-21
Abstract: 727,204. Sawing. RICHARDS, R. W. B., [trading as RICHARDS & SONS, R. B.]. April 20, 1954 [April 21, 1953], No. 10871/53. Class 145. Apparatus for sawing large sheets of material, such as plastic sheets, comprises a flat table or bed a on which a sheet can be placed to rest against a fence a<SP>3</SP>, a carriage b traversable on rails a<SP>2</SP> beneath the table and carrying a circular saw b<SP>2</SP> that protrudes through a slot in the table, and a guard and clamp member c that holds the sheet on the table while it is cut by traversing the carriage by means such as cable d on drums d<SP>1</SP>, the protruding portion of the saw being accommodated in a groove c<SP>3</SP> in the member c. At one end, the member c may be formed with a handle c<SP>4</SP> for pressing it down on the sheet and with a locating peg c<SP>2</SP> engaging a hole in the table while, at the other end, to allow easy detachment and to accommodate sheets of varying thickness, it may have either a bent plate c<SP>1</SP> held in an open slot in the fence by a spring-loaded plate a<SP>5</SP> or a hooked plate engaging under a spring-loaded cylindrical member on top of the fence. The saw is rotated by a motor b<SP>1</SP> on the carriage and one of the cable drums d<SP>1</SP> may be driven from a motor in the base of the table.
Patent GB-1146283-A (GB)
Title: Improvements in or relating to direct current electric arc initiation
Inventor: SNELL ALFRED EDWARD COURTENAY
IPC: B23K9/067
Filed: 1965-03-15
Abstract: 1,146,283. Arc systems. AIR PRODUCTS Ltd. 15 March, 1966 [15 March, 1965], No. 10882/65. Heading H2H. A D.C. arc 14, 15 is started and maintained by a series of high voltage D.C. pulses of the same polarity as the arc produced by an inverter 17 coupled to a transformer 34 and a ladder network 18 the output of which is connected to the arc through a capacitor 39 which is repeatedly discharged through a spark gap 40. The inverter input is connected across the arc so that it is disabled when the arc is struck. The inverter may be of the ringing choke transistor type 17 fed from a network 19 compensating for changes in opencircuit voltage. In a welding arrangement, an argon gas solenoid-operated valve 20 may be energized simultaneously with the inverter on operation of a manual switch 25 on the welding torch which solenoid is maintained energized for a short period after cessation of welding by a timing circuit 21, which also disconnects the inverter and closes the gas valve, say four seconds after closure of the switch 25 should the are not strike. A crater eliminator circuit (not shown) may be included which operates by switching resistors progressively into the arc circuit before termination of the arc current.
Patent GB-1598632-A (GB)
Title: Switching device having a plurality of identical switching modules
IPC: H01H19/64
Filed: 1978-03-20
Abstract: The control device which is, especially, designed as a programme control, has a plurality of control modules (1), each of which has a frame (3, 11) and at least one disc cam (15) rotatably mounted therein. The frames and disc cams of adjacent modules are connected separably to one another, allowing the control device to be modified at any time by separating the modules, inserting or removing one control module and then joining them together again. Each module has at least two disc cams (15), of which in each case at least one lies on each side of a bearing (11) of the associated frame. On the one hand, this ensures that each module per se consists of parts connected to one another in a captive manner and, on the other hand, that the space is well utilised since each module has at least two disc cams (15) and operating means (33) controlled thereby. <IMAGE>
Patent GB-1185012-A (GB)
Title: Improvements in or relating to Photographic Gelatin
Inventor: RUSSELL GERALD
IPC: G03C1/047
Filed: 1966-03-11
Abstract: 1,185,012. Treatment of gelatine. MINNESOTA MINING & MFG. CO. 10 March, 1967 [11 March, 1966], No. 10909/66. Heading C3H. [Also in Division G2] In a process for the preparation of an inert gelatine, a natural gelatine containing restrainers (i.e. substances which slow down the rate of sensitivity increase of a photographic emulsion during "digestion") is treated so as to degrade a substantial proportion of the restrainers, and the degraded restrainers are then removed. The degrading agent may be deoxyribonuclease since restrainers are of the nature of nucleic acids; magnesium ion catalyses the degradation. The gelatine may then be filtered through charcoal which absorbs the degradation products.
Patent GB-1491625-A (GB)
Title: Electric power generation
IPC: F02G5/00
Filed: 1975-03-17
Abstract: 1491625 Elastic fluid turbines; vapour engine power-plant INDUE-JAPAX RESEARCH Inc 17 March 1975 [18 March 1974 20 May 1974 (2)] 10963/75 Headings F1Q and FIT The production of electricity utilizing a source of heat of a relatively low temperature, e.g. waste heat from an industrial plant, or incinerator, solar heat, terrestrial heat or, as shown, the cooling system of an I.C. engine 16, and generator 17, is effected by a turbine 2 driving a generator 8 and utilizing an evaporated working fluid having a boiling point much lower than water, the fluid being evaporated by the cooling fluid across an interface surface comprising a porous layer of thermally conductive metal, and condensed at 3, and the turbine and generator being contained in an hermetically sealed chamber 10. The chamber may be pressurized. As shown, the cooling fluid evaporates the working fluid in an evaporator 6. Again, Fig. 4, (not shown), the heat source may be solar (25) and/or a water boiler (27). The solar source and hot-water boiler may evaporate the working fluid without using a heat exchanger 6, Fig. 5, (not shown). Again, Figs. 6 and 7, (not shown), a terrestrial heat source may be utilized with the apparatus respectively below or above ground level. The porous metal interface surface may be made as in Specification 1480966.
Patent GB-1041326-A (GB)
Title: Coaxial connector
IPC: H01R13/502
Filed: 1965-03-16
Abstract: 1,041,326. Coaxial connectors. AMP Inc. March 16, 1965 [March 31, 1964], No. 11003/65. Heading H2E. A coaxial connector is held in a board 10 (Fig. 1, not shown) by resilient finger-like strips 40e engaging the inner surface of an aperture in the board and by resilient dimples 40k (Fig. 2, not shown), and is prevented from being pushed further into the board by outwardly projecting dimples 40d. The contact sleeve 40 may make connections with metallic portions provided on the board for shielding purposes, or alternatively, the end of the sleeve 40 adjacent the central contact pin 50 may contact a socket member. The contact sleeve 40 is electrically connected to the outer conductor of the cable 14 by crimping to a sleeve 42, which in turn is crimped to the outer conductor, a rigid support sleeve 44 being arranged inside that conductor to protect the inner insulation. The contact pin 50 is connected to the inner conductor by crimping at 50b, this contact being extended over the inner cable covering and being provided with an annular rib 50f which abuts a shoulder provided on an insulating sleeve 34, and with a dimple 50e which prevents relative rotation between the contact and the insulating sleeve. Contact between the rear end of the pin 50 and the bent over end 44a of the rigid sleeve 44 is prevented by means of a second insulating sleeve 36.
Patent GB-1073521-A (GB)
Title: Indole derivatives
Inventor: KING JOHN
IPC: C07D209/12
Filed: 1963-03-20
Abstract: Compounds of the general formula <FORM:1073521/C2/1> (wherein R1 is an alkyl group and -NR2R3 is a heterocyclic group) and their acid addition salts are prepared by reacting an appropriate 1-alkyl-3-haloacetylindole with the appropriate secondary amine, optionally followed by salt formation.  These compounds (certain of which are analgesics) may be administered in the form of pharmaceutical preparations containing them with or without other (unspecified) active ingredients, in association with a carrier or diluent.  The preparation of 1-methyl-3-chloroacetylindole is described.
Patent GB-283038-A (GB)
Title: A silencer for internal combustion engines
IPC: F01N1/08
Filed: 1927-04-26
Abstract: 283,038. Bernet, F. X., and Luthy. P. J. April 26, 1927. Exhaust-silencers. - A silencer comprises a body containing a number of partitions 14, 15, 16 which are alternately open at opposite ends so that the exhaust gas, entering at 11, is repeatedly divided and reunited, as shown by the arrows, and finally leaves by a pipe 17 and flows through a number of holes 19 along a pipe 12, past a baffle 20, and through a fish-tailed exit 13, to the atmosphere.
Patent GB-415846-A (GB)
Title: Improvements in and relating to the hardening of steels
IPC: C21D1/46
Filed: 1933-04-13
Abstract: A bath for the hardening of steels, especially tool steels, comprises one or more alkaline or alkaline earth halides which are stable at 1000 DEG  C., an amount not exceeding 10 per cent of one or more metal oxides such as magnesium or aluminium oxide or compounds adapted to form such oxides at the working temperatures of the bath, e.g. 730-1400 DEG  C. and one or more boron or like compounds adapted to facilitate the solution of the metal oxides and their action at the surface of the steels, such as borax in cyrstalline form, pyrophosphates, fluorine compounds and tungstates.  Examples of compounds which are reduced to oxides are magnesium carbonate and pure or natural cerium chloride.  The temperatures used for the hardening are between 730 DEG  C. and 1400 DEG  C. and the steels after being heated in the bath are quenched and then, if desired, annealed.  In an example, the bath for tool steel comprises 71 parts of barium chloride, 20 of sodium chloride, 8 of borax and 1 of magnesium oxide.
Patent GB-288989-A (GB)
Title: Improvements in grinding machines and like machine tools
IPC: B24B27/00
Filed: 1928-04-16
Abstract: 288,989. Compagnie Francaise de Machines-Outils de Precision. April 15, 1927, [Convention date]. Lathes. - In a screw cutting lathe or other machine tool, the holding means are mounted to slide in guides in an overhanging arm or similar support extending over the bed so that wear on the slide surfaces due to chips, dust, &c. is avoided. The bed 1 of a grinding machine is f tted with an arched support 3 provided with guides 4 for a slide 5 which carries in bearings 7 the grinding-wheel 6. The latter is driven from a motor through a belt 9 and pulley 8. In a modification, particularly for small machines, the arch 3 is replaced by a curved arm. In a further modification, Fig. 4, for leavier tools, the slideways 4<11>, 4<111> of the tool support 5<11> are respectively provided on arms 3<11>, 10.
Patent GB-1390755-A (GB)
Title: Lubricant for a controlled-slip differential
IPC: C10M159/12
Filed: 1972-02-18
Abstract: 1390755 Lubricants SUN OIL CO OF PENNSYLVANIA 18 Feb 1972 [19 Feb 1971 (2) 17 Jan 1972] 11323/74 Divided out of 1390051 Headings C5E and C5F A lubricant composition for a controlled-slip differential gear comprises (1) a surface active phosphate ester of a linear aliphatic ethoxylated alcohol and (2) a hydrocarbon base stock having a pnuematic viscosity at 210 F. of 1À5-200 cs. and containing a major amount of a blend of at least one C 13 -C 29  naphthene, and 0À1-20 wt. per cent of at least one of (a) a synthetic C 3 - C 8  polyolefin; (b) wholly or partially hydrogenated (a); (c) a hydrorefined naphthenic or paraffinic lube oil containing less than 1% of gel aromatic hydrocarbons. The amount of blend present in the base stock is sufficient to provide a greater coefficient of traction, measured at 600 ft./ min., 200 F. and 400,000 p.s.i., than would be provided by substitution of the same amount of ASTM Oil No. 3 for the blend. The lubricant may also contain a sulphurized blend of lard oil and C 12 -C 24  monoolefin, and conventional additives. A mixture of naphthenes mainly 1,1,3-trimethyl-3-cyclohexyl indane, is made by dry-distilling α-methyl styrene polymer, hydrogenating the distillate using Raney nickel under heat and pressure, and removing low-boiling material from the perhydrogenated naphthene product. The naphthene component may also be 4,9-cis-1-cyclohexyl-1,3,3-trimethylhydrindane, made by high pressure hydrogenation of 1 - phenyl - 1,3,3 - trimethylindane using a Ni-, Pa- or Rh-containing catalyst.