baber/WOPTO huggingface dataset:
Patent GB-841536-A (GB)
Title: Improvements in photographic reproduction processes and in photographic silver halide emulsions therefor
IPC: G03C1/043
Filed: 1956-11-30
Abstract: 841,536. Photographic emulsions and processes. KODAK Ltd. Nov. 30, 1956 [Dec. 1, 1955], No. 36639/56. Class 98(2) A photographic silver halide emulsion is sensitized with an alkylene oxide polymer or a condensation product of an alkylene oxide with an organic compound containing an active hydrogen atom and with a sulphonium salt of the general formula R1R2R3SX, wherein R1 and R2 are each alkyl or aralkyl, R3 is an alkyl group containing 9 or more carbon atoms, and X is an anion. The emulsion may also contain an ahtifoggant such as 4-hydroxy-6-methyl-1:3:3a:7- tetrazaindene or 5-carboxy-4-hydroxy-1:3:3a:7- tetrazaindene. Alternatively, either the polymer or the sulphonium compound may be incorporated in the emulsion before exposure and the other of the two is then included in the developer solution. Sulphonium compounds specified are the p-toluene sulphonates wherein R1 and R2 methyl and R3 is n-nonyl, n-decyl, n-dodecyl or n-tetradecyl, diethyl n-dodecyl sulphonium ptoluene sulphonate and benzyl ethyl n-dodecyl sulphonium ethosulphate. The polymers may be obtained by polymerizing ethylene, propylene or butylene oxides or by condensing such oxides with alcohols, glycols, amines, mercaptans, acids, amides, hydrocarbons such as acetylene or compounds with a reactive methylene group such as dibenzoylmethane. Suitable polymers are described in Specifications 380,431, 380,851, 548,019 and 592,676. Polymers specified are polyethylene oxide, di-(polyethylene-glycoxy)-decane and polyethylene oxide oleyl ether. In the examples, the emulsions contain also a sulphur sensitizer such as one of those in Specification 235,211 and potassium chloroaurate. Stabilizing agents such as mercury compounds, cadmium chloride, cadmium nitrate, cobalt nitrate, manganese chloride, manganese sulphate, zinc chloride, zinc nitrate and zinc sulphate also may be added. Specifications 556,457, 600,058, 636,140, 680,593, 682,355, 742,219, 742,221, 742,224 and 815,075, U.S.A. Specifications 2,090,890, 2,121,823 and 2,441,389 also are referred to.
Patent GB-1212277-A (GB)
Title: An improved device for the transfer of containers
IPC: B65B43/46
Filed: 1968-08-02
Abstract: 1,212,277. Conveyers. COSTER TECHNOLOGIE SPECIALI S.p.A. 2 Aug., 1968 [2 Aug., 1967], No. 36911/68. Heading B8A. Containers for processing on a machine 1 are fed from a conveyer belt 14 to an intermittently rotating plate 2 of the machine by a reciprocating member 30, means being provided to cause container grippers 3 at a station A to separate to receive a container K and then to allow the grippers to close on the container under spring action. At a station B, a container P which has been processed is released from its grippers 3 and a further reciprocating member 30 draws the container on to the conveyer belt 14. Figs. 1 and 3 show the means for actuating the grippers 3 and the reciprocating members 30. Arms 19 are engageable with sliders 5 of the grippers and are rotatable by cranks 20 actuated by linkage 22-25 and two cams 27. The members 30 are reciprocated by slides 33 operated by linkage 37, 40, 41 and cam wheels 44.
Patent GB-1460609-A (GB)
Title: Sealed container provided with an openable spout
IPC: B65D75/62
Filed: 1974-08-22
Abstract: 1460609 Sealed containers having openable spouts ZIRISTOR AB 22 Aug 1974 [5 Sept 1973] 36950/74 Heading B8P A container formed as a tube and sealed at the top to produce a fin 4 and triangular lugs 5 is made from sheet material provided with a plastics coating on each side; and is provided with an opening arrangement by forming a suitably placed slit in the sheet material from which the container is formed prior to coating thereof with plastics material, whereby a line of weakness consisting of plastics material only is produced in the finished container along the line 6 at the base of the fin 4. The container is opened by tearing along the line of weakness 6 to form a spout (Fig. 3, not shown). To close the container the lug 5 is folded down to lie flat on the top 3 of the container and the partially detached part of the fin 4 is returned approx, to its original position overlying the lug 5, thereby holding the container closed (Fig. 4, not shown).
Patent GB-433416-A (GB)
Title: Improvements in or relating to the treatment of clays
IPC: C04B33/13
Filed: 1934-12-24
Abstract: A dilute solution of sulphite lye with or without an addition of alkaline electrolyte is used as a deflocculating agent in the purification of clay.
Patent GB-1401538-A (GB)
IPC: G03B1/12
Filed: 1972-08-08
Abstract: 1401538 Cameras NIPPON KOGAKU KK 8 Aug 1972 [9 Aug 1971] 36985/72 Heading G2A To rewind film for a take-up spool 201 on to a supply spool 202, a member 17 is manually operated to disable a rewind blocking mechanism 20, 200 and (via members 21, 33, 37) to close a switch 54, and a member 39 is manually operated to close a switch 52 and to couple a drive-shaft 44 with the spool 202; closure of switches S 2 S 4  energizing a motor 1 to rotate shaft 44 and thus spool 202 in the rewind direction. This sequence is intended to avoid inadvertent rewinding. As shown, for forward winding a switch S 7  is closed to energize motor 1 which via gears 2-5, clutch 6, gears 7, 8, pawl 9, ratchet 54 and gears 10-13 drives take-up spool 201 and via a cam 31, levers 32a, b and ratchet 33 rotates a frame counter 38 and a printed circuit disc 37 clockwise. When the counter 38 has rotated to a position in which it indicates that there are no exposures left, the circuit disc 37 opens a switch S 3  to stop the motor 1 from being energized further. A manual advance lever 16 is also provided. Manual operation of member 17 releases a button 20 to allow a sprocket 200 to rotate in the rewind direction, and via a projection 23 and a lever 21 releases ratchet wheel 33 whereby a spring 36 returns the frame counter 38 and circuit wheel 37 to the home 'S' position in which a switch S 4  is closed. Manual operation of member 39 raises a member 40 to close a switch S 2  and open a switch S 1 . Motor 1 is energized via switches S 2 S 4  and S 5  to rotate in the reverse direction and via gears 48, 49 and a worm 50 rotates a wheel 46. Continued upward movement of member 40 couples pawls 43 and 45 together and couples drive-shaft 44 to supply spool 202 whereby the drive from wheel 46 is coupled to the supply spool 202; ratchet 9, 54 preventing the reverse drive from being coupled to the take-up spool 201. Figs. 5, 6 (not shown) depict devices for coupling the supply spool 202 to its shaft 44.
Patent GB-989890-A (GB)
Title: Semiconductor device fabrication
IPC: H01L29/00
Filed: 1962-10-01
Abstract: 989,890. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 1, 1962 [Oct. 6, 1961], No. 37075/62. Heading H1K. In a process for depositing doped semiconductor material on a semi-conductor substrate, the semi-conductor material is deposited from a decomposing halide vapour of the semi-conductor preferentially under those portions of a mask which are spaced from the surface of the substrate by a distance of the order of one mil. As shown, in a method of simultaneously fabricating a plurality of line junction diodes, a mask 9 with apertures 11, and recesses 10 with a depth of the order of one mil., is placed on an intrinsic semi-conductor substrate 1. The assembly is exposed to a vapour formed from a disproportionation reaction of a halide, such as iodine, with a semiconductor material and doped to produce a selected conductivity type semi-conductor, for example P-type. The semi-conductor is deposited preferentially in the recesses 10 and forms the bodies 12. The vapour is then replaced by one of opposite conductivity type to deposit N-type bodies 13 in the recesses 11. When the mask is removed a plurality of PN line junction diodes are revealed attached to the highly resistive semi-conductor substrate 1. Connections may be made to the exposed portions of the bodies 12, 13.
Patent GB-892888-A (GB)
Title: Improvements in or relating to overload devices for the protection of polyphase electric circuits and apparatus
Inventor: DAVIES JOHN STANLEY
IPC: H01H71/10
Filed: 1958-11-19
Abstract: 892,888. Protective cut-out arrangements. BROOKHIRST SWITCHGEAR Ltd. Nov. 6, 1959 [Nov. 19, 1958], No. 37165/58. Class 38 (5). The polyphase protective device of Specification 892,887 is provided with overload protection means comprising thermally-responsive devices heated by induction from the coils of the electromagnets. In Fig. 3, bimetallic elements 29 are connected to secondary windings 30... 32 of saturable transformers, the primary windings 22 ... 24 of which are constituted by the coils of the electromagnets. The elements 29 act on a bar 33 which is interrupted by a two-limbed bimetallic element 36 providing ambient temperature compensation. The bar actuates contacts 34 which may be hand/or self-resetting. The tripping current may be set by adjusting the element 36 relatively to the bar 33 and individual adjustment for the elements 29 may be provided.
Patent GB-802746-A (GB)
Title: Improvements relating to earth fault protection for electrical equipment
Inventor: HILLYER CECIL ALFRED CHARLES
IPC: H02H3/04
Filed: 1955-12-29
Abstract: 802,746. Protective cut - out systems. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 10, 1956 [Dec. 29, 1955], No. 37271/55. Class 38 (5). An earth-leakage current transformer CT in the neutral-earth connection N, n of a transformer PT has a primary test winding T which is supplied through a voltage transformer VT and push-button PB connected between phases on the primary or (as shown) secondary side of the transformer PT, the current transformer secondary S being connected to a trip coil EC of the circuit-breaker CB.
Patent GB-782793-A (GB)
Title: Improvements in or relating to navigational position finding apparatus
Inventor: GABLER HEINZ
IPC: G01S1/02
Filed: 1955-12-29
Abstract: 782,793. Radio navigation. WAECHTLER, M. Dec. 29, 1955, No. 37285/55. Class 40 (7). The invention relates to a direction finder having a cathode-ray tube display giving luminous line indications which co-operate with a plurality of beacon transmitters to determine position. If three spaced beacons are provided sufficient information is normally available to define the receiver position. If all the beacon transmitters radiate on the same frequency, keying of their transmissions is necessary in order to produce separate and intelligible indications at the receiver. According to the invention each of the plurality of transmitters is provided with a keying device, all the devices have different keying repetition frequencies, and provision is made for synchronously driving the keying devices. The synchronous driving means may comprise synchronous motors at each of the beacons fed from frequency regulated A.C. mains of identical frequency. Where n beacons are provided it is preferred that the on-off ratio be 1/n to n-1/n. The keying periods of three beacons keyed in this way and having repetition frequencies of 16, 18 and 20 per second are shown in the Figure. The " on " periods are shown hatched and the useful periods (when only one beacon is transmitting) are cross-hatched. The repetition frequencies should be high enough to produce continuous indications on the display.
Patent GB-895095-A (GB)
Title: New or improved stabilising arrangement for motor vehicles
IPC: B62D55/112
Filed: 1960-10-31
Abstract: 895,095. Preventing lateral canting. DAIMLER-BENZ A.G. Oct. 31, 1960 [Oct. 31, 1959], No. 37339/60. Class 108(2). A torsion bar for a vehicle suspension has two parts 5, 6 which may be rotated in relation to each other by means 4 to produce resistance to centrifugal action on the vehicle body. The means 4 may be a pneumatic or hydraulic motor having a vane 13 and a webbed cylinder 14 connected to the parts 5, 6 or a reciprocating motor connected to bent end portions of the parts. A valve operated by centrifugal action or by the steering mechanism controls the motor which rotates the parts of the torsion bar in relation to each other to keep the vehicle horizontal when travelling on a curve. The chassis 9 is additionally supported by springs 12 which may be pneumatic. Seals 20 and 21 are provided on the vane 13 and the webs 15 to provide chambers 16 . . . 19 which communicate with supply and exhaust conduits 22, 23 through ducts 24, 25, 32 and 33 and a disc valve.
Patent GB-369593-A (GB)
Title: Improvements in or relating to the recovery of alumina from aluminous silicious material
IPC: C01F7/08
Filed: 1930-12-12
Abstract: Aluminous silicious material, such as coal ashes, clinkers or other waste coal products, feldspar, leucite or kaolin is mixed with an alkali metal, e.g. sodium, carbonate, a calcium product as calcium carbonate, and if necessary, with a material consisting chiefly of alumina, as bauxite, in such proportions that, when sintered, a product is obtained in which the molecular proportion of alkali aluminate is equal to or greater than that of the dicalcium silicate. The alkali aluminate leached from the sinter with water or dilute alkali may be treated in known manner to produce alumina.  The residue of dicalcium silicate may be used as a fertilizer, or may be sintered with limestone and more aluminous material for the production of Portland cement.  Limestone or calcium carbonate sludge from caustic soda manufacture may be used as raw materials.  The raw materials may be ground together in the dry form or as a sludge. Rotary furnaces may be used. Specification 369,268 is referred to.ALSO:The residue of dicalcium silicate obtained by leaching a sinter produced by heating a mixture of aluminous silicous material with an alkali metal carbonate, calcium carbonate, and if necessary, a material consisting chiefly of alumina, as bauxite, in specified proportions, is mixed with more aluminous material and limestone, and sintered, say in a rotary furnace, for the production of Portland cement.
Patent GB-505829-A (GB)
Title: Improvements in and connected with the automatic control of charging devices for internal combustion engines
IPC: F02D9/00
Filed: 1938-12-28
Abstract: 505,829. Fluid - pressure servomotorcontrol systems. DAIMLER-BENZ AKT.- GES. Dec. 28, 1938, No. 37621. Convention date, Jan. 8. [Class 135] (Also in Group XXVII] In means for regulating an internal-combustion engine charging-blower driven by a hydraulic coupling, the slip or liquid inflow and outflow of the coupling is controlled by a barometric device arranged so that its sensitive surface is exposed also to the dynamic pressure of the wind of travel of the aircraft or vehicle. The Figure shows a blower 1 driven by a hydraulic coupling 3 connected to the lubricating or other liquid circulation comprising a sump 7, pipes 8, 81 and 10, and a pump 9. A byepass 12 is controlled by a valve 11 actuated by the barometric device 15, which is arranged in a housing 16 having a funnel 18 opening to the wind of travel. In a modification, a fluidpressure relay is arranged between the barometric device and the valve 11.
Patent GB-856305-A (GB)
Title: Improvements in screw-and-nut assemblies
Inventor: GLADSTONE WILFRED STEUART
IPC: F16H25/22
Filed: 1957-12-03
Abstract: 856,305. Screw and nut gearing. RESEARCH ENGINEERS Ltd. Feb. 27, 1959 [Dec. 3, 1957], No. 37681/57. Class 80 (3). In re-circulating ball-type screw and nut gearing the helical groove in one member 1, Fig. 1, is of V cross-section and preferably of Whitworth form while the groove in the other member 2 is of arcuate or elliptical cross-section the radius of curvature being slightly in excess of that of the balls. The inclination C of the line of thrust B, A is always constant and passes through the centre of the balls irrespective of variations in the diameters of screw and nut. The apex of the V groove provides a clearance for lubricant and a clearance 5 is also provided in the other groove. Two nuts may be carried on a movable part 6 of a machine tool by spherical seating members 8 and one may be loaded by springs 9 to take up backlash. The nuts are held in position by screws 10, one of which serves to adjust the compression of the springs 9.
Patent GB-1340119-A (GB)
Title: Hydraulic system
IPC: F15B11/08
Filed: 1971-08-12
Abstract: 1340119 Hydraulic systems CATERPILLAR TRACTOR CO 12 Aug 1971 [2 Sept 1970] 37848/71 Addition to 1239883 Headings F1D and F1P [Also in Division F2] In the hydraulic system of the main patent wherein a hydraulic motor's directional control valve has a holding detent released by pressure from a valve 24' actuated by a member movable with the motor, the member is a rod 64 fixed at 66 to the motor's piston rod 56' for co-operation with the actuating lever 26' of the valve 24'. The rod 64 slider through a hole 68 in a bracket 58 bolted to the cylinder and mounting the valve 24'. A torsion spring 46' normally maintains the valve 24' in its closed position.
Patent GB-822536-A (GB)
Title: Improved mechanical filter having mechanical resonators coupled by means employing poisson's effect
IPC: H03H9/50
Filed: 1957-12-06
Abstract: 822,536. Electromechanical filters. STANDARD TELEPHONES & CABLES Ltd. Dec. 6, 1957 [Dec. 6, 1956], No. 38026/57. Class 40 (8). An electromechanical filter comprises a series, 3-8, of longitudinal mode resonators which are loosely coupled by elements 9-13 which utilize Poisson's effect. The resonators and elements are stamped from a single sheet of metal such as nickel and the input and output are provided by coils 2 and 14 on resonators 3 and 8 respectively, utilizing the magnetostrictive effect. Each resonator is half a wavelength long and a quarter of a wavelength wide at the mean operating frequency. The transverse oscillations owing to Poisson's effect at the centre of oscillator 3 are coupled to element 9, which is a quarter of a wavelength long, and cause longitudinal oscillations therein. By a repetition of this process longitudinal vibrations are produced in resonator 8 and are picked up by coil 14. In the embodiment of Figs. 2 and 3 (not shown) the width dimension of alternate resonators is perpendicular to that of the remaining ones. The device of Fig. 4 (not shown), has an odd number of coupling elements each of a quarter of a wavelength long, between two resonators, with alternate elements having a greater width than the remaining ones. Fig. 5 (not shown) has a coupling element an even number, at least four, of quarter wavelengths long which is clamped in the centre. In other modifications the length of the resonators is a multiple of a half wavelength ; the width being a quarter wavelength or an odd multiple of a quarter wavelength in order to prevent direct coupling between the coupling elements.
Patent GB-1119577-A (GB)
Title: Improvements in and relating to tin compounds and siloxane compositions containing same
IPC: C08K5/57
Filed: 1966-08-25
Abstract: Silicone rubber compositions are adapted to cure at room temperature by the addition of a compound <FORM:1119577/C3/1> where R is alkyl, aryl, alkaryl, alkenyl or haloalkyl, R1 is alkyl with 1-15 carbon atoms and X is halogen. Dibutyltinbutoxychloride, dibutyltinbutoxybromide and dibutyltinethoxychloride are preferred and the organo-tin compound preferably comprises 0.1-0.7 parts by weight per 100 parts rubber composition. The organo-tin compound may be used in a carrier comprising also a siloxane, fumed silica and zinc oxide. The silicone rubber preferably comprises a silicone of formula <FORM:1119577/C3/2> of viscosity from 1700-2800 centipoises and molecular weight of 6,000-8000, a cross-linking agent (e.g. ethyl silicate) and reinforcing agents and pigments such as iron oxide and silica.ALSO:The invention comprises compounds of formula <FORM:1119577/C2/1> where R is alkyl, aryl, alkaryl, alkenyl or haloalkyl, R1 is alkyl with 1-15 carbon atoms and X = halogen.  The compounds (where R1 has four or more carbon atoms) are prepared by reacting R2SnO with an excess of ROH using a solvent with a boiling point higher than that of the alcohol.  The resulting compound R2Sn(OR1)2 is then reacted with the corresponding dialkyl tin-dihalide R2SnX2 in equimolar proportions with cooling if necessary, to yield the product R2Sn(OR1)X.  If R1 contain less than 4 carbon atoms the dihalide is prepared by the reaction of R2SnX2 and an alcoholate e.g. NaOR1. Dibutyltinbutoxychloride, dibutyltinbutoxybromide and dibutyltinethoxychloride are claimed per se. The compounds may be used as curing agents for silicone rubber compositions (see Division C3).
Patent GB-624528-A (GB)
Title: Improvements relating to rheostats, regulating switches and the like
IPC: H01H19/22
Filed: 1946-12-31
Abstract: 624,528. Regulating-switches; controllers. ENGLISH ELECTRIC CO., Ltd., SPAINK, J. H. ABBINK-, and MARDIS, P. L. Dec. 31, 1946, No. 38101. [Classes 38(iii) and 38(v)] A regulating-switch has a rotating arm driven through a limited angular displacement by an electric motor through the medium of a friction clutch, which is arranged to slip when the arm has reached either limit of its travel. This arm operates limit switches at or near the ends of its travel to de-energize the motor. The reversible motor 7 drives a shaft 1 through gears 5, 6, and the arm 8 is located between friction discs 11, 12. The disc 11 is dowelled to the shaft and the disc 12 is biassed into engagement with the arm 8 by means of a spring 14 and adjusting nut 15. The arm 8 carries a pivoted insulating roller 9 which engages a number of circumferentially - spaced, cantilever - mounted spring blades 17, so that as the arm turns, contacts 18, 19 are successively closed. The travel of the arm 8 is limited by either of the projections 8a, 8b carried by it, abutting a stop 24. The blade 17 on each side of the stop has its contact 18 normally in engagement with a fixed contact 25, these contacts being connected in the motor control circuit. Hence, the roller 9 in bearing on either side of these two blades 17 opens this circuit to de-energize the motor and prevent the continuous slipping_of the clutch members when the arm 8 abuts the stop 24.
Patent GB-1369759-A (GB)
Title: Cutting or boring tools
IPC: B23B29/034
Filed: 1972-08-17
Abstract: 1369759 Boring tools VALERON CORP 17 Aug 1972 [20 Aug 1971] 38378/72 Heading B3C A cutting tool 10 comprises a housing 12, a boring bar 18 pivotally mounted in the housing, a longitudinally movable wedge 60 adapted to act between the boring bar and the housing to provide lateral displacement of the cutting tip 24. Boring bar 18 is of rectangular cross-section and is mounted in a similar bore 16, in the housing so as to have a close fit with walls 30, 30<SP>1</SP> and a clearance fit with walls 32, 32<SP>1</SP>. A pivot land 34 on bar 18 extends across wall 32<SP>1</SP> and a seal 36 engages wall 32. Wedge 60 is formed on a rod 54 adapted to be connected to a pull rod at 88, and the wedge coacts with a half round sectioned rod 68 located in a recess 44 in the boring bar. The latter is spring-urged away from wall 32<SP>1</SP> by a stack of Belleville washers 50, and a flattened ball 70 is adjustably held against a flat 62 on rod 54. In operation, the radial position of tip 28 is set by moving rod 54 to the left, Fig. 1, until a flange 90 abuts the bottom of a counterbore 20 in housing 12. Ball 70 is moved against flat 62 by screws 72, 74, and the latter is locked by a screw 82. To vary the cutting radius, rod 54 is moved to the right so as to pivot the boring bar about land 34.
Patent GB-1526254-A (GB)
Title: Collapsible boat
IPC: B63B7/08
Filed: 1975-09-19
Abstract: 1526254 Collapsible boats SEMPERIT AG 19 Sept 1975 [19 Sept 1974] 38463/75 Heading B7A A collapsible boat comprises inflatable gunwales 9, 9<1> interconnected by a membrane 8, a floor 1 and hull sides 2, 2<1> made in sections from a rigid material being disposed over the membrane and secured together by transversely extending ribs 3. A keel 7 formed in two relatively movable parts is used to tension the membrane 8, one of the parts having socket-ended bars 12 which receive pins 11, 11<1> on the hull sides 2, 2<1>. Pockets provided in the membrane either side of the keel receive reinforcing elements.