baber/WOPTO huggingface dataset:
Patent GB-1288129-A (GB)
IPC: F15B11/00
Filed: 1970-06-15
Abstract: 1288129 Fluid-pressure servomotor systems KOEHRING CO Inc 15 June 1970 [23 Dec 1969] 28896/70 Heading G3P In a control system for a fluid motor 15 compris-  ing a control valve 10 having a passage 18 connected  to a fluid-pressure source P and a passage 14 through which motor exhaust can be returned to a reservoir, an exhaust valve 27 blocks exhaust flow from the passage 14 until either a first pilot valve 41 is lifted by the pressure of the exhaust fluid or a second pilot valve 43 is lifted by the supply pressure. The valve 41 may be adjusted to open at 300 p. s.i. and the valve 43 at 1000 p.s.i. A check-valve 57 allows fluid to flow from the exhaust line 14, 8<SP>1</SP>, 25 to the supply line 7<SP>1</SP>, 18 and whichever of the service parts 12<SP>1</SP>, 13<SP>1</SP> is connected to the supply so as to avoid cavitation when the motor is driven by its load. This arrangement operates when the valve 10, which is of the open-centre type, is in neutral position or to supplement a conventional anti-cavitation system in which relief and check-valve 53, 54 inter-connect the ends of the motor cylinder through the passage 14. When exhaust pressure is above the pre-set value, it acts on the pilot valve 41 through an orifice 32 in the valve 27 to allow the latter to open an outlet passage 26. The second pilot valve 43 opens the valve 27 to remove obstruction to exhaust flow when the motor is heavily loaded and the supply pressure rises above the pre-set value.
Patent GB-959245-A (GB)
Title: Improvements in or relating to machine-tools
IPC: B23B5/40
Filed: 1962-07-27
Abstract: 959,245. Lathes. ETABLISSEMENTS SIM S.A. July 27, 1962 [July 28, 1961], No. 29045/62. Headings B3B and B3T. A machine-tool for producing bulged surfaces on pistons comprises a beam 36 mounted on the machine-bed 30 to pivot about a vertical axis and having guides for a longitudinally movable table 37 carrying on one side of the axis a longitudinally and transversely adjustable tool holder 38 and on the other control members 44, 45, 47 and a crank-arm 51 pivotable about a fixed vertical axis and connected to an eccentric 50 bearing against the beam for pivoting the beam about the first vertical axis when the crank 51 explores the control members 44, 45, 47 as the table is displaced along the beam. The work may be mounted on the headstock spindle-head 33 of a lathe, or between the head and a tailstock, the draw rod 33b and tailstock centre of which are operated pneumatically. Curved guides 35 on the bed support the beam 36 which is biased against the eccentric 50 by a spring. The control members or pattern are adjustable on the table by a hand wheel and comprises a member 44 with a curved corner coincident with the curved edge of the member 45. This is pivoted on member 44 and leads the follower roller 52 on the crank 51 on to the third control member 47, which is adjustable laterally by screws 48. Alternatively, the control members may have no curved edges, member 45 being rotated to provide a curved path for the roller. The crank 51 may be adjusted relatively to the eccentric 50, and a dial gauge 54 is provided between a shoulder 55 and the beam 36.
Patent GB-1443282-A (GB)
Title: Process for the preparation of an electrophotographic liquid  developer
IPC: G03G9/12
Filed: 1974-07-01
Abstract: 1443282 Electrophotographic developers HOECHST AG 1 July 1974 [29 June 1973] 29100/74 Heading C3P [Also in Divisions G2-G3] The developer, which comprises an electrically insulating carrier liquid having dispersed therein pigment particles encapsulated by polymeric material and preferably having a particle size of from 0À1-12 Á, is prepared by dispersing a homogeneous particularte mixture of the polymer and the pigment in the carrier liquid at a temperature at which the polymer is appreciably soft and grinding the resulting mixture as it cools to room temperature. In the examples, carbon black is encapsulated with a polymeric material comprising a vinyl toluene/octyl acrylate or a styrene/n-butyl methacrylate copolymer. Additional materials present in the exemplified developers, either incorporated in the polymeric material or dispersed or dissolved in the carrier liquid include Reflex Blue, spirit soluble nigrosin, oleic acid salts of nigrosin or induline, a styrene/butadiene copolymer, an aliphatic hydrocarbon resin, a colophony ester, and polyvinyl stearate. The carrier liquid is an aliphatic hydrocarbon of boiling range 174- 191‹ C. to which may be added small amounts, e.g. 2 g./l., of an aromatic hydrocarbon, a halogenated hydrocarbon, a ketone or an ester, to increase the tackiness of the pigmented polymer.
Patent GB-1165055-A (GB)
Title: A Connector for Scaffolding.
Inventor: SCHWARZ BERNHARD
IPC: E04G7/14
Filed: 1967-06-23
Abstract: 1,165,055. Clamps. B. SCHWARZ, P. ROLOFF and G. SCHWARZ. 23 June, 1967, No. 29148/67. Heading E2B. A scaffold clamp for connecting two tubes comprises a central member 1, to opposite sides of which the tubes are clamped by arcuate . caps 6, and the clamping surfaces are formed with recesses or holes 17, 18 to accommodate projections 16, 16' on the tubes. The central member 1 may comprise two relatively rotatable parts which may . be secured angularly with respect to each other.
Patent GB-800433-A (GB)
Title: Improvements in or relating to distant liquid level or volume indicators
IPC: G01F23/14
Filed: 1955-10-13
Abstract: 800,433. Indicating liquid levels. HUBER, A. Oct. 13, 1955, No. 29185/55. Class 123(1) In a liquid level indicator, particularly for the fuel tank of a motor vehicle, a casing consisting of two flanged members 13, 17 is sealed into an aperture in the top of the tank 11, a riser tube 15 extending from the lower member 13 to near the bottom of the tank whilst the upper member 17 has an internal projection 19 extending downwardly inside the chamber 18 formed within the casing to a position a small distance above the riser tube. The projection 19 has an internal bore 20 with which communicates a suction line 21 from the engine of the vehicle. From the top of the chamber 18 a duct 22 and a pipe 23 lead to a pressure guage 24 mounted, for example, on the vehicle dashboard, the pipe 23 being closed by a porous plug 27. When the engine is started, fuel is drawn up through the tube 15, air leaking through the plug 27 and entering the chamber 18. ensuring that the fuel rises only to the bottom of the projection 19. The pressure in the chamber which is indicated by the guage is then less than atmospheric by the head A of liquid, the gauge being calibrated to indicate directly the level or volume of the fuel in the tank 11. To prevent the liquid in the riser tube from dropping when no suction acts in the chamber 18, a one-way valve composed of a plate 30 seating on a ring 33 is provided in the chamber, a float 34 in the riser tube acting to aid the opening of the valve when the engine is started. Perforated baffle plates 38, 39 prevent liquid splashing into the pipe 23.
Patent GB-665671-A (GB)
Title: Improvements in or relating to signalling by pulse-modulation
IPC: H03K9/04
Filed: 1946-10-01
Abstract: 665,671. Pulse modulation. PHILIPS LAMPS, Ltd. Oct. 1, 1946 [Oct. 1, 1945], No. 29285/46. Class 40 (v). A demodulating circuit for time or phasemodulated pulses, in which the pulses are converted to a saw-tooth waveform having a downstroke of constant amplitude and a slant stroke proportional to the modulation, comprises a main condenser which is discharged (or charged) through a discharge tube during pulses and charged (or discharged) during the intervals between pulses, and an auxiliary condenser shunted by a resistance is included in the circuit of the main condenser, so that the fundamental pulse frequency component does not appear in the demodulated output which is taken from both condensers. Reference is made to Specification 663,716. In Fig. 13 the modulated pulses are applied to the grid of valve 4, which is rendered conducting during pulses to discharge the main condenser 1. The level to which condenser 1 then charges through resistance 2 is dependent on the interval between the pulses. A short time constant circuit provided by auxiliary condenser 9 and resistance 10 is provided in the discharge circuit of condenser 1, a resistance 11 being effectively connected across condensers 1 and 9. The demodulated output is taken from a tapping on resistance 11, and due to the opposing effect produced by the short time constant circuit 9, 10, the fundamental pulse frequency component is substantially eliminated from the demodulated output, thereby avoiding the use of a low-pass filter which would otherwise be necessary. Condensers 1 and 9 are preferably equal in value. A modification is described in which condenser 1 is charged during each pulse and discharged during the intervals. A differentiating network may be connected in series with the circuit shown, for use when frequency modulation of pulses is employed.
Patent GB-1163840-A (GB)
Title: New bis-formazane dyestuffs containing copper or nickel, their production and use
IPC: C09B45/00
Filed: 1967-06-26
Abstract: 1,163,840. Copper and nickel complexes of bisformazane dyestuffs. J. R. GEIGY A.G. 26 June, 1967 [27 June, 1966], No. 29354/67. Heading C4P. The invention comprises copper and nickel complexes of bisformazane dyestuffs of general formula wherein A, B, and D are benzene or naphthalene radicals, the groups X 1 , X 2  and X 3  being ortho to the azo or hydrazone linkage; R is a monovalent organic radical, e.g. phenyl; X 1 , X 2  and X 3  are H or a metallizable group e.g. -OH, -COOH or -NH 2  at least X 1  or (X 2  and X 3 ) being metallizable groups; Q is a divalent saturated hydrocarbon radical, an acyl radical of a dicarboxylic acid or a divalent bridge member containing sulphur. They are prepared by (a) metallizing the dyestuffs of the above formula, using at least 2 mols. of metallizing agent; or (b) reacting a compound of the formulµ wherein A, B, D &c. are as above first with a metallizing agent and then appropriately with the tetrazo or diazo compounds of the amines and X 1 -A-NH 2 . The starting materials may contain as substituents X 1 -X 3  groups convertible into metallizable groups, e.g. bis (methyl sulphonyl) amino, by saponification. Preferred dyestuffs contain substituent groups which do not dissociate to form acid in water and products having amino groups may be acylated with acylating agents containing dyestuff reactive groups which react with cellulose and polyamides e.g. wool which may be dyed in violet and blue shades.
Patent GB-734837-A (GB)
Title: Improvements in and relating to the continuous casting of metal
IPC: B22D11/06
Filed: 1951-12-17
Abstract: 734,837. Continuous-casting machines. BRENNAN, J. B. Dec. 17, 1951 [Dec. 16, 1950], No. 29480/51. Class 83 (1). A method of continuously casting metal consists in passing at least one of a number of parts of mould-cavity-forming means through a reservoir 4 of molten metal as that metal flowing into the cavity passes out of the reservoir with the part and through a solidifying zone 7. Annular rings 9, 10 having a cavity 16 between them and driven by gearing 13, 14 pass through a molten pool 4, fed from a crucible 2, and through a cooling die 7. The rings are coated with a composition in a container 29 before entering the metal, the composition being set or cured by external means or by the heat of the metal. One or more composition or ceramiccoating containers 29 may be provided. The metal is chilled by sprays 26. The cast strip is pushed from the cavity by a cam and coiled on to a drum 18. The rings are accurately spaced between the driving rollers by balls 22, Fig. 2. The rings may be of ceramic material, molybdenum or titanium alloy, Al 2 O 3  or graphite and enclose one or more annular cavities extending circumferentially or helically. They may also be made of ceramic plaster,.graphite, carbon or resin investment and be reconstituted or recoated before each passage through the metal. In a modification, the cavity lies in a vertical plane and the metal enters the cavity through perforations in a sleeve 35, Fig. 3. A mould for casting wires is illustrated in Fig. 5 and may be of a number of straight or curved aligned sections. The wire may be of hexagonal crosssection. The core 39 may be hollow or solid and the outer mould section may be a stationary member within the pool 4. Again, the mould sections may be shaped to produce strips of metal, the outer section being plain or recessed. The strips may be joined by fins such as those formed by cavities 44, Fig. 5. The rings 9, 10, Figs. 1 and 3, may be modified to receive individual moulds. A straight or curved removable or destructible core may be passed centrally through the pool to form a cast tube. The core may be centred initially by a sleeve in the cooling die which also acts as a stopper. Cores for casting strip may be guided by splines on the sleeve 35. Metal may be laminated by passing a mould successively through steel and bronze or a number of layers of steel may be built up. The metal may be protected by an inert atmosphere or a vacuum. In yet a further modification, a number of flexible aligned bands may be passed through the pool to produce a number of strips. The moulds are preferably pre-heated.
Patent GB-965898-A (GB)
Title: Improvements in apparatus for firing pulverised fuel
IPC: F23K3/00
Filed: 1963-07-25
Abstract: 965,898. Pulverized fuel burners. BABCOCK & WILCOX Ltd. July 25, 1963 [July 28, 1962], No. 29528/63. Heading F4T. [Also in Division B2] A pulverized fuel firing apparatus includes a centrifugal classifier having a group of radially extending blades 12 adapted to impart a whirl to the fuel flowing through a cylindrical housing 10, a secondary duct 7 having an open end centrally disposed in the housing downstream of the blades to direct the central core of the fuel to a secondary burner 9, and a main duct 5 directing the peripheral fuel to a main burner 4 mounted below the secondary burner 9. The duct 5 has dampers 6 controlling the fuel flow to the main burner 4. The upper part of the housing 10 consists of flanged arcuate portions 11 each provided with a flat blade 12 mounted upon end shafts 18, 19 rotatably mounted in bearings in the arcuate portion 11 and in a central boss 13 mounted on the secondary duct 7. The outer end of each shaft 18 has a segmental plate 15 with an arcuate slot engaged by a locking screw 16 to position the blade 12. The blades 12 may be coupled together for simultaneous operation.
Patent GB-427287-A (GB)
Title: Improvements in or relating to injection pumps
IPC: F02D1/00
Filed: 1934-10-16
Abstract: 427,287. Fuel-injection pumps. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Oct. 16; 1934, No. 29552. Convention date, Nov. 17, 1933. [Class 102 (i)] [See also Group XXVI] A single- or multi-cylinder fuel-injection pump is fed by a gear or other rotary pump g, which is driven from the end of the pump cam-shaft c opposite the driving coupling f. A plate q, forming part of the casing of the pump g, carries one of the bearings of the shaft c and also the cylinder r of a fluid-pressure governor. The latter comprises a piston s, coupled by means of a pin t to the rack e which rotates the plungers b. The piston s is acted on by a spring y and is exposed to the pressure in the engine manifold by means of a pipe v.
Patent GB-988249-A (GB)
Title: An installation for the cooling of fine granular material
IPC: F27B7/38
Filed: 1961-08-16
Abstract: 988,249. Cooling granular materials. KLOCKNER-HUMBOLDT-DEUTZ A.G. Aug. 16, 1961 [Aug. 24, 1960], No. 29566/61. Headings F4B and F4U. An installation for cooling fine granular material comprises a plurality of separators connected into at least two streams of a gaseous coolant wherein the supply pipe for the fine grained material and the material discharge outlets from each separator except the last are each connected to a coolant pipe leading to one or more separator. As shown in Fig. 3, two streams of coolant are used, flowing in through pipes 7, 36. The fine granular material is fed in through pipe 6 and passes out of the first separator 1, which may be a cyclone separator, through a pipe 9 into a pipe 32 leading from a separator 30 to another separator 29. The material then passes to the separator 29, via pipes 33, 34 to the separator 30 and then via pipes 35, 36 to a separator 31, whence it is discharged through a pipe 37 to a worm drive 38. The first stream of coolant is drawn through separator 1 and pipe 8 to a fan 5. The second stream is drawn through pipe 36, separator 31, pipe 34, separator 30, pipe 32, separator 29 and pipe 39 to the fan 5. As shown in Fig. 4, two separators are fed by each stream of coolant, the first stream being drawn through separators 41, 40 and the second through separators 43, 42. The material to be cooled is passed in through pipe 6 and passes through separators 40, 41, 42 and 43 in succession. Another embodiment, not shown, is similar to this, but an additional stream of coolant is used, which stream is only drawn through the first separator, i.e. a pipe 45 is connected up directly to the fan, and pipe 47, which is no longer connected to pipe 44, becomes the feed in pipe for the extra stream of coolant which flows into the top of the separator 40 carrying the fine granular material which has been fed into it. In yet another embodiment, not shown, the material passes through four separators in succession, and four streams of coolant are used, each being drawn through only one separator. A pendulum flap may be used on the material supply pipes 6 and the discharge pipes connected to the lower tips of the separators, e.g. pipe 9.
Patent GB-405412-A (GB)
Title: Improvements in and connected with means for suspending and guiding slidable tool-holders used on road scarifying apparatus
IPC: E01C23/12
Filed: 1932-10-24
Abstract: 405,412. Road scarifiers. PRICE, F. C., Silverburn, Albert Square, Bowdon, Cheshire. Oct. 24, 1932, No. 29630. [Class 107.] The tool holder d of a road scarifier, of the type attached to a road roller or locomotive, is suspended from a spring box c by means of steel pins or bolts e which are secured to a front plate d<2> and lugs d<1> on the tool holder and pass through elongated slots c<2> in the box c. The tool holder is guided in lateral channels of an outer frame a and is resiliently supported therein upon springs g<1> surrounding a pair of suspension bolts g. Vertical movement of the tool holder is effected by the spring-box structure, the spring c<4> of which bears against a platform thereof. The adjusting mechanism comprises a handwheel a<3> mounted on a shaft carrying a worm a<2> which meshes with a worm wheel b keyed to a shaft b<1>. The latter carries also a spur wheel b<2> which gears with a rock bar c<1> formed integrally with the spring box c. The tine f carried by the tool holder can thus be raised or lowered by manipulating the handwheel, and the limits of movement thereof are dependent on the lengths of the slots c<2>.
Patent GB-1168783-A (GB)
Title: Alicyclic Compounds
Inventor: LUNN WILLIAM HENRY WALKER
IPC: C07C55/30
Filed: 1965-08-03
Abstract: 1,168,783. Adamantylethanol. LILLY INDUSTRIES Ltd. 26 Oct., 1966 [3 Aug., 1965], No. 29747/66. Divided out of 1,168,781. Heading C2C. The invention comprises 2-(1-adamantyl)- ethanol, and a method of making it by reducing (e.g. with LIAlH 4 ) (1-adamantyl) acetic acid, or an alkyl ester or acid halide thereof. (1-Adomantyl) acetic acid is prepared by thermally decomposing (1-adamantyl) malonic acid.
Patent GB-642754-A (GB)
Title: Improvements in and relating to repeatedly ignitible composition rods
IPC: C06F5/00
Filed: 1947-11-07
Abstract: 642,754. Pyrotechnic compositions. HALL, F. K. KNUTSSON-. Nov. 7, 1947, No. 29764. Convention date, Nov. 13,1946. [Class 9 (ii)] [Also in Group XII] A repeatedly ignitible rod comprises a mixture of a combustible main mass, an oxygen yielding agent and a combustible ignition promoting agent, the combustion temperature of the mixture of the oxygen yielding agent and ignition promoting agent being so related to the evaporative cooling effect capable of being exerted by the main mass that both the oxygen yielding agent and the ignition promoting agent become enriched in the burning portion of the rod. The combustible main mass of the rod is an aldehyde such as metaldehyde mixed or not with cellulose waste. The oxygen yielding agent may be, for example, potassium chlorate. The ignition promoting agent is preferably phthalic acid or one of its derivatives such as phthalic anhydride or a phthalein. Acetanilide or adipic acid may also be used separately, together or in conjunction with salicylic or benzoic acids. To bind these substances, gum, gelatine, synthetic resins &c. with or without a softening agent such as esters of phosphoric acid, are used and the completed rod may be varnished or lacquered. The rod may be struck on a phosphorous containing surface. When the rod is burning the evaporative cooling effect of the metaldehyde keeps the temperature of the lower part of the flame below that required to initiate the reaction between the phthalic acid and the potassium chlorate and these substances therefore become enriched and are thus available to facilitate subsequent ignitions of the rod. Initially the rod must be provided with a match head produced, for example, by burning off the end during manufacture, to make it possible to ignite it for the first time.
Patent GB-1001548-A (GB)
Title: A device for retaining perforated documents
Inventor: ZEIGLER EUGENE
IPC: B42F13/24
Filed: 1964-07-24
Abstract: 1,001,548. Filing papers. M. LEITZ, M. LEITZ, C. LEITZ, and H. KLAIBER, [trading as FIRMA LOUIS LEITZ]. July 24, 1964, No. 29792/64. Heading B6E. A lever arch-type file is characterized in that the base-plate 1 is cut away at A so that the tongues 10, engaging the connecting web 71 of the arch, project beyond the adjacent portions of the edge of the base-plate.
Patent GB-359675-A (GB)
Title: Improvements in apparatus for melting fat or the like, and for heating and boiling liquids
IPC: C11B1/12
Filed: 1930-10-06
Abstract: <FORM:0359675/III/1> Apparatus for melting fat comprises a hot box 2 with walls and floor lined with asbestos, and a removable heating chamber 1 provided with a gauze tube strainer 7 and a run-off tap 8, mounted in the box 2, electric heating elements 5 being disposed beneath the chamber 1.  The chamber 1 may be divided, and each compartment may have a strainer and run-off cock.  The wall 2a is removable, and is recessed to fit over the stem of tap 8 when in position. The switches 12 and fuses for the electric heating elements 5 are placed in an air space 11 between the box 2 and a storage bin 14 arranged in the supporting stand of the heater.  A plate 19 presses down on the substance to be heated and a gauze tray 17 is disposed in the bottom of the heating chamber.