baber/WOPTO huggingface dataset:
Patent GB-563896-A (GB)
Title: Improvements relating to gate valves
IPC: F16K3/18
Filed: 1942-03-26
Abstract: 563,896. Valves. SEAMARK, L. M. C. March 26, 1942, No. 4011. [Class 135] A gate valve actuated by a rotary spindle has a resilient valve member divided parallel to its axis and provided with threads or ridges preferably of buttress cross-section engaging corresponding recesses and threads or ridges on an actuating member. When the spindle is moved to close the valve, engaging surfaces of the threads and grooves which are set at an inclination to the axis of the spindle ride one on the other to jamb the valve in its seat. As shown in the Figure, the gate comprises a cylindrical plug 1 divided longitudinally at 2 and held against rotation by a groove 11 engaging a pin 12. A threaded plug 9 engages a threaded bore in the gate and has a squarethreaded aperture engaging a threaded actuating spindle 18. The spindle is held against axial movement by a collar 24 held between thrust rings 23 by a screwed ferrule 25. The plug 9 is held against rotation by pins 14 engaging recesses in the gate and plug and held in place by a spring ring 15 engaging a groove in the plug. The gate may have sealing ridges adapted to contact the removable cover 20 or the ferrule 25 when the valve is fully open to facilitate repacking the stuffing-box 26. To hold the gate in the closed position while permitting the removal of the actuating spindle and cover, a threaded retaining screw is inserted through an aperture normally closed by a plug 32 and screwed into a threaded socket 7 in the lower end of the gate. The lower end of the groove 11 may move into engagement with a fixed tapered expanding plug secured to the casing. The buttress threads may be formed in the valve spindle which may also be arranged to rise and fall. When applied to a sluice valve having a gate comprising flat valve plates joined by plate springs, the backs of the plates are formed with a series of grooves and ridges engaging similar grooves and ridges on the actuating plug. According to the Provisional Specification, the plates may be resilient and slightly curved in the direction transverse to the direction of movement and joined together by wire springs engaging recesses in the edges of the plates. Further, the plug 9 may have a peripheral flange with lugs engaging grooves in the casing. Also, the upper end of the gate may be slotted to receive downwardly projecting lugs formed on a disc slotted radially so that it becomes V-shaped. The arms of the disc are engaged with the flat faces of oppositely disposed recesses provided below the peripheral flange on the body of the plug.
Patent GB-1410130-A (GB)
Title: Azo pigments of the beta-hydroxynaphthoic acid series
IPC: C09B43/32
Filed: 1973-01-26
Abstract: 1410130 Colouring polymers BADISCHE ANILIN- & SODA-FABRIK AG 26 Jan 1973 [29 Jan 1972 19 Aug 1972] 4025/73 Headings C3P and C3R [Also in Division C4] Synthetic resins and compositions thereof, such as inks and lacquers, are coloured in orange, red, violet and brown shades by incorporating therein monoazo pigments of formula wherein A is -NHCO- or -CONH-, D is the radical of a diazo component, R<SP>1</SP> is H, Cl, Br, alkyl, alkoxy, alkylsulphonyl or CN, R<SP>2</SP> is H, Cl, Br, alkyl or alkoxy, R<SP>3</SP> is H, Cl, alkyl or alkoxy, X is Cl or Br and n is 0, 1, 2, 3 or 4. In Application Examples (1 and 4) a baking lacquer containing coconut alkyd and melamine resins is coloured; (2 and 5) a printing ink containing toluene and rosin modified with phenolformaldehyde is coloured; (3 and 6) coloured flexible PVC is prepared by mixing PVC powder, a plasticizer, a stabilizer and optionally TiO 2  on heated mixing rolls.
Patent GB-588418-A (GB)
Title: Improvements in or relating to the mounting of electric switches on wall surfaces and the like
IPC: H02G3/12
Filed: 1945-02-16
Abstract: 588,418. Switch cases. FUKE, F. C. Feb. 16, 1945, No. 4031. [Class 38 (v)] A switch-box for sunk or surface mounted switches, has fixing nuts slidably mounted in arcuate slots for angular adjustment of the cover plate and associated switch. In Fig. 1, the nuts 23, 24 move within slots 21, 22 in an annular frame 16 secured to the switch box 11 by screws 17, 18, the cover plate 28 carrying the switch 29, being held by screws 31, 32, which are long enough to compensate for variations in depth of the switch-box in the wall 13. The nuts 23, 24 have tongues 26, bent over at their ends so as to engage under the longitudinal edges of the slots. In Figs. 4 and 5 (not shown), the nuts slide in slots in diametrically opposite lugs and bars, respectively integral with, and screwed to, the box. In Fig. 6, the cylindrical centre portions of nuts 39, 40, project from boxes 45, 46 in the switch 29, through slots in a plate 38 which is secured to the switch-box. The nuts are slidably attached to the plate 38 by washers 51, 52 positioned under circular flanges 43, 44 and rotation of the nuts is prevented by oval flanges 41, 42 which seat in like recesses in the switch.
Patent GB-100202-A (GB)
Title: Improvements in or relating to Service-tables or Tray-wagons.
Inventor: ADAMS ARTHUR JAMES
IPC: B62B3/02
Filed: 1916-03-20
Abstract: 100,202. Adams, A. J. March 20, 1915, [Convention date]. Folding and collapsible vehicles. - A service table or tray-wagon adapted for transporting dishes and for use in dining-rooms and porches comprises an upper tray or table top and a lower tray mounted on collapsible supports running on wheels. The trays B, C are attached to crossbars pivoted to the uprights 1, 2, and the upper tray may be provided with a carrying or propelling handle E. The wheels 7 are mounted on side-bars 3 connecting the lower ends of the uprights 1, 2 which may be jointed at the centre, as shown, so that the wagon when collapsed may be supported on the wheels 7 and one edge of the upper tray C. The structure is braced by jointed stays 15, 16.
Patent GB-900728-A (GB)
Title: Improvements in thrust reverser actuating mechanism
IPC: F02K1/60
Filed: 1961-02-03
Abstract: 900,728. Jet propelled aircraft thrust reversers. GENERAL ELECTRIC CO. Feb. 3, 1961 [Feb. 26, 1960], No. 4143/61. Class 4. A jet propulsion engine thrust reverser has a pair of baffles D movable simultaneously by independent linkage systems 34, 36, 37 by a sliding member 15, gas sealing means 50-54 being provided between tailpipe 10 and the baffles, and the sliding member 15 being connected to the linkage systems by resilient members 20 to form a toggle for holding the baffles locked in the non-operative position and for compressing the sealing means between the tailpipe and the baffles. The member 15 is moved in track 12 by an electric or hydraulic power unit 26 and members 20 are connected together by a retainer 60 which has elongated holes 62 for the pivot pins 35 connecting members 20 to links 34.
Patent GB-633815-A (GB)
Title: Improvements in or relating to the analysis of vibrations
IPC: G01H3/00
Filed: 1948-02-12
Abstract: 633,815. Analyzing complex oscillations. FAIREY AVIATION CO., Ltd., and PIPER, D. E. Feb. 12, 1948, No. 4163. [Class 37] The amplitude and frequency of the components of a complex oscillation are determined by heterodyning it with a variable oscillation of constant amplitude and applying the resulting sum or difference frequencies to a sharply resonant electro-mechanical oscillator of low decrement and indicating or recording the output of the resonator. Preferably the resonator comprises a magneto-strictive bar 31, Fig. 4, supported at its mid-point 32, having input and output coils 33, 34 and biassed by permanent magnets 40. The complex oscillations may be generated by the pressure fluctuations in the turbulent wake of an aerofoil in a wind tunnel acting on a diaphragm forming part of a condenser modulating the frequency of an electric oscillation, Fig. 1, not shown; or they may be generated by a resistance strain gauge set diagonally on the blade of a propeller to correspond to torsional strain, Fig. 6, not shown; or a musical instrument may act on a microphone; or a piezo-electric pick-up may be attached to an airframe, Fig. 8, not shown, or finally, an accelerator valve 49, Fig. 9, may be attached to a ballast representing a passenger on the seat 51 of a vehicle.
Patent GB-460740-A (GB)
Title: Improvements in sirens
IPC: G10K9/18
Filed: 1936-02-12
Abstract: 460,740. Foghorns. EKMAN, O. I. H. Feb. 12, 1936, No. 4233. [Class 13] [Also in Group XXXIX] In a fluid-operated sound-producing device comprising a diaphragm 1 mounted in a chamber 16 having a constantly open sound emission opening 15 on one side of the diaphragm and a valve-controlled inlet and outlet on the other side of the diaphragm, a chamber 6 for the operating fluid is provided with a series of apertures 13 controlled by a rotary valve 10 which also controls a concentric series of outlet apertures 14 leading from the portion of the chamber 16 behind the diaphragm 1 to the atmosphere or to a pressure below atmospheric. The valve 10 is provided with concentric series of apertures 11, 12 co-operating with the series 13, 14 respectively. The diaphragm is mounted between flanges of the members 2, 3 forming the walls of the chamber 16 and is permitted to have radial expansion by its spacing from a peripheral spacing washer 5 clamped between the flanges. In a modification, Fig. 2, the diaphragm 1 is of square or rectangular shape and is clamped along one edge. Adjacent the opposite edge is provided a series of slots engaged by levers 24 pivoted on knife-edge bearings and adjustably secured to the casing by screws 25. Further modifications are described in which the valve is formed with an apertured flange co-operating with outlet holes in the side wall of the chamber 16 and in which the valve member is mounted in the chamber 6 and is provided with radial grooves associated with apertures in the wall of the chamber 6 and alternating with the apertures 11.
Patent GB-704347-A (GB)
Title: Improvements in or relating to electron-discharge tubes employing travelling waves
IPC: H01J25/36
Filed: 1951-02-21
Abstract: 704,347. Velocity-modulated tubes. SPERRY CORPORATION. Feb. 21, 1951 [Feb. 21, 1950], No. 4258/51. Class 39(1) A multi-stage amplifier klystron comprises three transmission lines which are .not connected with one another and are spaced apart in the direction of the electron stream, the electron stream being projected through them in the form of a flat sheet. As shown, the transmission lines 1, 3, 5 are hollow waveguides of re-entrant section. Input waveguide 5 and output waveguide 1 are terminated at their ends opposite the coupling points by blocks 37, 31 of loss material such as stainless steel. Intermediate waveguide 3 is similarly terminated at both ends by blocks 33, 35. The slots in the waveguides for the passage of the electron stream are tapered at their ends and may be provided with grids.
Patent GB-1177374-A (GB)
Title: Luggage Carrier for car roof
Inventor: STOCKLI JOHANN
IPC: B60R9/048
Filed: 1967-01-30
Abstract: 1,177,374. Luggage carriers. J. STOCKLI. 30 Jan., 1967 [10 Feb., 1966], No. 4495/67. Heading B7J. A luggage carrier for car roofs comprises a base supported on a car roof and supporting the underside of an item of luggage, and a flexible cover which encloses the item of luggage, the flexible cover incorporating two rigid rods in spaced relation for tensioning the cover about the luggage, and means for holding parts of the cover normal to the rods against the luggage. In Figs. 1 and 3, the cover comprises an open-ended canvas tube 18 having foam rubber or plastics contoured transverse strips 20 for engaging the car roof, and having stiffening rods or a board thereon. The suitcase 25 is wrapped in the cover 18 which is secured therearound by cords or straps 24 and rods 23, and by elastic straps 27 and buttons 28. In a modification inflatable tubes replace the strips 20. In another embodiment, the cover comprises a rectangular sheet of canvas or fabric or plastics or rubberized material which is wrapped around the suitcase by means of rods which are rolled together.
Patent GB-594896-A (GB)
Title: Improvements in busbars and methods of mounting the same
IPC: H02G5/00
Filed: 1945-02-22
Abstract: 594,896. Conductors; slot conduits. KING, Ltd., G. W., and KING, D. M. Feb. 22, 1945, No. 4506. [Class 104(iii)] - [Also in Group XXXVI] Bus-bar conductors are mounted within insulators by providing the insulator with a channel having divergent walls, the busbar, of bowed section, being flattened against the base of the channel. The insulator sections 10 are moulded or extruded with ribs 11 to form channels 12 for the bus-bars 13. The insulators 10 are carried within a conduit 14 having inturned flanges 15 for the collector trolley wheels, tongues 16 being cut and pressed out to retain the insulators.
Patent GB-230051-A (GB)
IPC: C12N1/16
Filed: 1925-02-18
Abstract: 230,051. Mellemeuropaeisk Patent- Financierings-Selskab Aktieselskab, (Assignees of Hamburger, R., Kaesz, S., and Hartig, F.). Feb. 18, 1924, [Convention date]. No Patent granted (Sealing fee not paid). Yeast.-In producing yeast, particularly by the aeration method, ammonium lactate prepared by double decomposition in the wort, is used as the main source of nitrogen. Lactic acid is produced in the wort by means of micro-organisms, and is neutralized by repeated additions of lime. Ammonium sulphate is then added, producing ammonium lactate and precipitating calcium sulphate.
Patent GB-1499122-A (GB)
Title: Perfluoroalkylthio group-containing polyurethanes process for their manufacture and their use
IPC: C09K3/00
Filed: 1975-02-03
Abstract: 1499122 Fluoroalkylthio-urethanes CIBAGEIGY AG 3 Feb 1975 [4 Feb 1974 18 April 1974] 4561/75 Heading C2C [Also in Divisions C3 and D1-D2] Urethanes are prepared by reacting a monoisocyanate with an Rp-glycol of the formula wherein Rp is C 1-18  perfluoroalkyl which may be substituted by perfluoroalkoxy of 2 to 6 carbon atoms; R 1  is branched or straight chain C 1-12  alkylene, C 2-12  alkylenethioalkylene, alkyleneoxyalkylene or alkylene iminoalkylene where the nitrogen atom is optionally substituted by C 1-6  alkyl; R 2  and R 3  are each independently straight or branched chain alkylene of 1 to 12 carbon atoms and may be substituted by 1 or 2 phenyl and/or cyclohexyl radicals; or a group of formula C m H 2m (OC k H 2k ) r , where m is an integer from 1 to 12, k is an integer from 2 to 6, and r is an integer from 1 to 40. In Example 42 a commercial monoisocyanate containing 70% octadecyl isocyanate and 30% hexadecyl isocyanate is reacted with 2,3-bis-(1,1,2,2-tetrahydroperfluorodecylthio) - butane - 1,4 - diol. The urethanes may be used to render plastics soil repellent or for treating textiles to render them oil and/or water repellent.
Patent GB-947630-A (GB)
Title: Hydraulic servomotor control systems
IPC: F15B11/02
Filed: 1962-02-06
Abstract: 947,630. Fluid-pressure servomotor systems. UNITED STATES ATOMIC ENERGY COMMISSION. Feb. 6, 1962 [April 5, 1961], No. 4570/62. Heading G3P. An apparatus comprises two constant-flow pumps 10, 11 supplying two orifices 15, 17, control means 26.. 28 acting against the orifices to vary the flow therethrough, and means 34, 35 for utilizing the pressures in the orifices to act against a load. When a torque motor 21 receives an electrical signal, a flapper arm 20 restricts one of a pair of orifices 16, 18 to produce a pressure differential on a ball 27 which is thus displaced from a central position together with balls 28, 29 to restrict one of the orifices 15, 17. The resulting unequal flows in lines 13, 14 cause fluid to flow into one of the cylinders 34, 35 and out of the other to actuate a drum 40 carrying an arm 41. A small ball located in an aperture in a central wall and interposed between the balls of larger diameter may be used instead of the arrangement of balls shown. The balls in either of these arrangements may also be replaced wholly or partly by pistons. In Fig. 2, input is applied to the arm 41 of a master unit 43 and the output taken from the arm 41 of a slave unit 44. A signal is produced by an amplifier 45 whenever the arms are moved out of position correspondence and is applied to the two torque motors 21 to move the flapper arms 20 in opposite directions, the arm 20 on the master unit causing the balls 28 and 29 to oppose fluid flow due to movement of the arm 41 and hence provide a "sense of feel". The orifices 16 and 18 on the master unit may be larger than those on the slave unit or the pumps may be operated at a lower constant rate to reduce the "sense of feel". Specification 843,663 is referred to.
Patent GB-395441-A (GB)
Title: Improvements in and relating to electrical transformers
IPC: H01F38/10
Filed: 1932-02-17
Abstract: 395,441. Transformers. CHAPMAN, A. E., 125, Stanley Park Road, Carshalton, Surrey. Feb. 17, 1932, No. 4753. [Class 38 (ii).] A leaky transformer for supplying gaseous discharge tubes and for similar purposes where a limited current output is required comprises a core structure in two parts which may be assembled in a number of different relationships in each of which there is formed a complete magnetic circuit for the main flux and a circuit containing air gaps for the leakage flux, the length of the air gaps depending upon'the particular relationship selected. The core comprises an outer frame b and an inner member a carrying the windings. The member a has laterally-extending arms a<1>, a<2> forming leakage flux paths. Air gaps e<1>, e<2>, e<3>, or e<4> are formed between the ends of the arms and the frame b, the latter being cut away in such manner that the gaps formed in the various positions of the inner member with respect to the frame are of different lengths.
Patent GB-291133-A (GB)
Title: Mattress
IPC: A47C23/00
Filed: 1927-02-21
Abstract: 291,133. Edelson, C. Z., Goldeen, J., and Tarlow, M. D. Feb. 21, 1927. Mattresses. - Relates to mattresses embodying spring units wherein a number of radially arranged bent wire springs 17 are looped at their inner ends for connection to upper and lower end caps 15, and diverge therefrom to a central zone encircled by a circumferential wire 10; and consists in the assembling of such units for insertion into a mattress case by means of clips 12 or like devices by which the units are loosely connected together. The assembly is preferably surrounded by an outer wire frame 13 clipped to the spring units. The usual padding and tufting is carried out, the end caps 15 being centrally perforated in order that their position may readily be ascertained during the tufting operation by probing with a needle.
Patent GB-1035942-A (GB)
Title: A hydraulic pressure regulator
Filed: 1963-01-14
Abstract: 1,035,942. Valves. LOSENHAUSENWERK DUSSELDORFER MASCHINENBAU A.G. Jan. 14, 1963 [Feb. 3, 1962; Aug. 2, 19621, No. 48923/65. Divided out of 1,035,941. Heading F2V. The sliding closure member 19 of a fluidpressure regulator controls the flow from an. inlet 22 to an outlet 5, the closure member having a piston 3 acted upon by the inlet pressure and opposed by a loading spring 27 adjustable from a hand wheel 6 through a screwjack 28. The spring 27 acts on the end of the member 19 via a lever 25, a roller 24 and a ball-bearing mounted member. The liner is pivoted on a leaf spring. The closure member 19 is given a rotary oscillating movement by a motor through a rocker and a crank to reduce the effect of friction on the member 19. An additional loading and damping means is employed to compensate for viscosity changes and comprises a toggle lever 30, 31 with a spring 33 therebetween; lever part 30 is pivoted on a support 35 and rests against an adjustable stop 37 under the influence of a spring 36 whilst a roller 38 on lever part 31 abuts the lever 25. Part 31 embodies a wire 40 which dips into an oil sump and provides a damping force. The lever 25 is acted upon by the spring 27 and then by the toggle mechanism, and the sum of these forces may be constant for all positions of the lever so that the controlled pressure also remains constant.
Patent GB-1476052-A (GB)
Title: Control apparatus for dispensing liquid
IPC: B05B12/00
Filed: 1975-02-05
Abstract: 1476052 Metering liquid BALDWIN-GEGENHEIMER CORP 5 Feb 1975 [11 Feb 1974] 4953/75 Heading B8N A liquid dispensing apparatus, particularly for dispensing solvent liquid from a nozzle 15 on to an inking roller 20 of a printing press, comprises a control valve 110 between the nozzle 15 and a pressurized liquid source 10 and a control apparatus 35 to apply a negative pressure to the nozzle after dispensing to prevent dripping. The source is pressurized by compressed air and directed to a chamber defined by a diaphragm 56 in the control apparatus to move a piston 54 connected by a rod 65 to a further piston 80. The piston 80 also has a diaphragm 83 defining a dispensing chamber from which liquid 130 is dispensed. An adjustable stop 160 determines the quantity dispensed. The valve 110 is controlled by a solenoid 139 which may be energized periodically by a timer. When the valve is de-energized the pressurized source is shut-off from the diaphragm 56 chamber and the spring (150), Fig. 2 (not shown), urges the piston assembly 54, 80 leftwards to displace liquid from the chamber of the smaller piston to the chamber of the larger piston 80 through the conduit 126. Since the pistons 54, 80 define different size chambers a suction is applied to the nozzle 15 by movement of the pistons. This suction causes draw-back of any liquid in the nozzle to prevent dripping.
Patent GB-220338-A (GB)
Title: Improvements in holt landing lights or flares for attaching to aircraft
IPC: B64D47/04
Filed: 1923-02-20
Abstract: 220,338. Holt, H. E. S. Feb. 20, 1923. Addition to 176,455. Pyrotechnic devices.-The shades or reflectors of landing-lights carried by aircraft, of the kind described in the parent Specification are released by means of a pivoted member actuated by the combustion gases from the flare. As shown in Fig. 1, a single shade member a is used and is pivoted at b. Normally, this shade lies beneath the flare l and is held in that position by togglelinks g, g<1>, which are then fully extended as shown in full lines. When the flare is ignited, the combustion gases therefrom deflect a baffleplate a<2> carried by a pivoted arm a<1> and connected with lost motion to the shade by a rod a'. A toea<4> on the arm a<1> pushes the knee-joint k of the toggle-link beyond the dead. centre, whereupon the shade is thrown out to the position shown in dot and dash lines by a long tension spring f connected to the shade by a cable c. In a modification, two spring-actuated streamlined hinged shades, normally hanging down, are released by means of a sliding bolt hinged to a pivoted baffle-plate opposite the mouth of the flare, the baffle-plate being held by a spring catch after such actuation.
Patent GB-177496-A (GB)
Title: Improved process for rendering soluble crude phosphates
IPC: C05B11/14
Filed: 1922-02-20
Abstract: A modification of the process described in the parent Specification in which a mixture of crude phosphate, alkali sulphate, and a loosening-substance is treated with hydrochloric acid gas, consists in treating the mixture of phosphate and loosening-substance with hydrochloric acid gas without previous admixture of alkali sulphate. The latter is added afterwards to convert the calcium chloride formed into gypsum.  In this case the addition of an indifferent substance, such as sand, gypsum, infusorial earth, or dry brown coal to the mixture of phosphate and loosening-substance prevents caking during the course of the reaction.  In an example, 100 kilos. of Florida phosphate mixed with 40 kilos. of crude lignite and 50 kilos. of sand are submitted to the action of hydrochloric acid gas, and the product is mixed with 80 kilos. of ammonium sulphate.