baber/WOPTO huggingface dataset:
Patent GB-1029413-A (GB)
Title: Compressor air bleed valve
IPC: F04D27/02
Filed: 1964-03-17
Abstract: 1,029,413. Fluid-pressure servomotor system. UNITED AIRCRAFT CORPORATION. March 17,1964 [April 29, 1963], No.11239/64. Heading G3P. [Also in Division F1] A fluid-pressure servomotor system, is a turbofan engine having low-pressure and high-pressure compressors, comprises a valve element 141, Fig. 2 not shown, which is moved to the open position by a control fluid acting in a chamber 30 and controlled by a mechanism (not shown) in response to a differential pressure across the low-pressure compressor. The valve comprises concentric sleeves 18 and 22 joined by a web 28. The valve element 14 is connected to a hollow stem 20, slidable in the sleeve 18 and having an annular piston 24 which together with the members 18, 22 and 28 defines the chamber 30. The control fluid is supplied from the control mechanism through a conduit 32, 33. The valve element 14 is normally opened by a spring 34 augmented by low-pressure fluid acting on the underside, and normally closed by highpressure fluid acting on its upper surfaces until a differential pressure is sensed by the control mechanism whereupon fluid is supplied to the chamber 30 to open the valve. In a further embodiment the pressure chamber 30 acts to close the valve.
Patent GB-1387034-A (GB)
Title: Work platform assembly arranged to climb up and down a mast
IPC: B66F11/04
Filed: 1972-03-10
Abstract: 1387034 Platform elevators SOC GENERALE D'EQUIPEMENT & DE MATERIEL D'ENTREPRISES "SOGEMA" SARL 10 March 1972 [15 March 1971] 11286/72 Heading B8H [Also in Division E1] In a scaffold comprising a tower 2 supporting a working platform 3 for vertical movement therealong, the platform carries a pair of vertically disposed rotary discs 54 each of which carries near its periphery a circular series of rollers 48-53, the tower 2 carries a vertical rack formed by teeth 11-13 &c. secured to an upright 14 of the tower, and pairs of corresponding rollers of the two discs engage successively with the teeth, as shown, when the discs 54 are rotated, whereby the platform is raised or lowered by motors driving the discs. The two discs are coaxially secured together by a spacer and each disc is driven through reduction, gearing by a respective motor, so that in the event of breakdown of one of the drives, operation will be maintained by the other drive. The platform also carries from its underside vertical members 33, 33<SP>1</SP> carrying sets of guide rollers 35-38 in perpendicular planes which engage the other uprights 34, 34<SP>1</SP> of the tower. Motor control means 59 are mounted on the platform, and the scaffold may be mounted on a carriage 1.
Patent GB-975303-A (GB)
Title: A process for the production of polyurethane polymers
IPC: C08G18/66
Filed: 1963-03-21
Abstract: Polyurethanes by reacting an organic polyisocyanate with a hydroxyl group containing polyester obtained by reacting adipic acid with a mixture of glycols containing 60-75% by weight of hexane 1, 6 diol and a total of from 25-40% by weight of one or both of butane 2, 3 diol and 2, 2 dimethyl-propane 1, 3 diol. Chain extenders e.g. water, glycols, diamines, aminoalcohols, hydrazides may be reacted simultaneously with, or after the polyester-isocyanate reaction. Free radical forming substances may be added to the polymer and heated to at least 130 DEG C. to vulcanize.  Many organic diisocyanates are specified and also many suitable chain extending agents. Free radical forming substances mentioned are dicumyl peroxide, tertiary butyl dicumyl peroxide, 2, 5 di (tertiary butyl-peroxy)-2, 5 dimethyl hexane and azoisobutyric acid dinitrile which are preferably used in amount 0.5-10% by weight. A thermoplastic product is obtained by using an NCO to OH ratio within the range 0.9 to 1.2. Fillers and pigments e.g. carbon black, SiO2, TiO2 and glass fibres may be added. In example (1) butane 1, 4 diol was added to a dehydrated polyester obtained from adipic acid, hexane 1, 6 diol and butane 2, 3 diol, followed by diphenylmethane 4,41 diisocyanate and the mixture stirred at 130 DEG C. and heated for 24 hours at 100 DEG C. To the product was added carbon black, stearic acid, and dicumyl peroxide and heated to 151 DEG C. to vulcanize. Example (2) used 2, 2 dimethyl propane 1, 3 diol and hexane 1, 6 diol in the preparation of the polyester.
Patent GB-454080-A (GB)
Title: Improved device for removing condensation water from window sills
IPC: E06B7/14
Filed: 1936-04-21
Abstract: 454,080. Window sills. THOMPSON, M. L., Monmouth House, Almondsbury, near Bristol. April 21, 1936, No. 11341. [Class 20 (iii)] Condensation water is removed from the trough F of a window or shop-front sill by means of a tube screwed into the sill, and provided with an outlet E and a draught shield A screwed on its closed end B. The trough and tube may be applied to existing sills.
Patent GB-292152-A (GB)
Title: Improvements in or relating to electric conductors of high negative temperature coefficient
IPC: H01C7/04
Filed: 1928-04-17
Abstract: 292,152. Andre, H. June 17, 1927, [Convention date]. Addition to 280,862, [Class 37, Electricity, Measuring &c.]. Binding-posts.-To prevent corrosion of the leads by the sulphur in a resistance 1 of the material described in the parent Specification, the terminals are provided with retort carbon or graphite washers 2, 2<1> held by screws 3, 3<1> serving as contacts for the leads.
Patent GB-949701-A (GB)
Title: Improvements in electric motors
IPC: H02P7/03
Filed: 1962-03-27
Abstract: 949,701. Control of D.C. motors. ROBERT BOSCH G.m.b.H. March 27, 1962 [June 22, 1961], No. 11536/62. Heading H2J. The shunt field winding of a compound motor for a windscreen wiper is in two parts, and in the off position of a two-speed control switch 14 one part 5<SP>1</SP> is short-circuited while the other part 5<SP>11</SP>, of low resistance, is connected across the armature for dynamic braking In the slow speed arrangement, the motor has series field 4 and shunt 5<SP>1</SP> and 5<SP>11</SP>, while for high speed series field 4 only is used. A resistor 16 may be connected in series with 5<SP>1</SP> to enable it to be wound of thicker wire. A switch 7, 8 keeps the motor running after control 14 is put to off until the wiper blades reach a " park " position. It is stated that, in the prior art, a separate braking winding is provided which is not used during running (Fig. 1, not shown).
Patent GB-400256-A (GB)
Title: Improvements in valve reseating and boring machines
IPC: B23Q9/00
Filed: 1932-04-22
Abstract: 400,256. Portable turning-apparatus. JENKINS, T. G., 74, Moorland Road, Cardiff. April 22, 1932, No. 11557. [Class 83 (iii).] In a machine for re-facing valve seats, of the kind wherein a bridge-piece C is adapted to be secured to a valve chest A-and provides a bearing and feeding means for the cutter spindle H, the feeding means comprise a feeding sleeve D operating in a screwed part of the bridge C and a bush E adjustably secured to the spindle H, a spring F being provided between the sleeve and bush to take up wear and prevent chatter of the tool J. The bush E is securad to the spindle by means of a nut G on the bush which carries a bolt L entering one of a number of axially spaced holes in the spindle so as to adjust the axial position of the tool to suit the valve seat B. A metal block S engages the nut G and spindle H to maintain them in the same relative positions when the bolt L is disengaged. The spindle is guided in the valve seat B by means of blocks O, Fig. III, slidable in radial slots in an upper disc N on the spindle and having studs Z which pass through cam slots Q on a lower, relatively rotatable disc P. Nuts Y on the studs Z lock the discs in the adjusted position. The bridge C is cut away on opposite sides at R to enable the work to be inspected and may have a curved base to suit the shape of the valve chest A. Packing pieces may be placed between the bridge and valve chest.
Patent GB-394461-A (GB)
Title: Improvements in thrashing shafts for thrashing machines or thrashing and straw-reducing machines of the axial type
IPC: A01F7/06
Filed: 1932-04-22
Abstract: 394,461. Thrashing and straw-reducing machines. SCHLAYER, K., Wasserburg-on-Bodensee, Germany. April 22, 1932, No. 11617. [Class 58.] The shaft 1 of an axial thrashing or thrashing and straw-reducing machine is provided at its ends with journals 3 and screw-threaded portions 2, the central main portion of the shaft being of square cross-section to take spacing members 4 .. 7, and arm carrying members 8, the members 8 alternating with the spacing members and the spacing members having square apertures so that they can be fitted on the shaft. Each spacing member has at one side two diametrically arranged projections 11 and at the other corresponding recesses 12 for engagement with the projections of the next member, the recesses being displaced 45‹ relatively to the projections. The arm members have central apertures so that they may be rotated on the shaft but these apertures are extended radially in diametrically opposite directions so that the projections 11 of a spacing member can pass therethrough. The leading edges of the arms are bent to form strengthening flanges 16, arms of the same member preferably being bent in opposite directions. Thrashing plates are fitted to the arm members on the front part of the shaft and straw-tearing fingers 18, a baffling disc 19 and a set of rakes 20 towards the rear end. Nuts 9 clamp the spacing members and arm members on the shaft. In a modification the shaft is formed with a helical groove or grooves, the spacing members being apertured correspondingly.
Patent GB-747672-A (GB)
Title: Improvements in or relating to electric analysers for fluid pipe networks
IPC: G06G7/57
Filed: 1953-04-27
Abstract: 747,672. Electric analogue calculating Systems. CHACINSKI, T. M. PRUS-, DOBBIE, C. H., and LISICKI, T. April 26, 1954 [April 27, 1953], No. 11627/53. Class 37. An electric analogue network, simulating a network of fluid carrying pipes for the determination of the direction and magnitude of flow and the loss of head in any pipe element, comprises a plurality of nonlinear resistances of law V=Ke J<SP>u</SP> where Ke, U are constants, J=current, V=voltage drop, arranged in a network configuration similar to that of the pipe network and supplied with an excitation current analogous to the total fluid flow therein. Since the fluid flow in a pipe is given by H=K p Q<SP>u</SP> where H=loss of head, Q=flow rate, Kp, U are constants, an appropriate choice of resistance constants gives a direct analogy between the measured voltage drop and current in a resistance branch and the loss of head and rate of flow in the corresponding branch of the pipe network. In Fig. 1, showing a resistance network analogous to a fluid pipe network (not shown), resistance elements 10-21 corresponding to the various branches are composed of series and parallel connected (Fig. 2, not shown) commercial electric lamps following the law V = K e  Ju quoted above in which u may be 1.85; the constants being chosen by analogy with the dimensions and flow constants of the corresponding pipe section, the flow in which follows a similar law. Each resistance is corrected in series with an ammeter 22-33 indicating the current therein (and by analogy the fluid flow in the corresponding pipe) while the complete network is supplied from a battery over switch 35 and a main ammeter whose reading is analogous to the total fluid flow. The respective glow intensities of the lamps 38 connected across the respective resistances 10-21 are indicative of the voltage drops thereacross (which may be directly measured) and by analogy the loss of fluid head in the corresponding pipe of the fluid network. Probes 36 in series with the battery and with lamp 361 are provided for continuity testing of the respective resistance elements.
Patent GB-1398283-A (GB)
Title: Means for mounting a washing machine in a ships hold
IPC: B63B57/02
Filed: 1972-03-13
Abstract: 1398283 Cleaning ship's holds DASIC EQUIPMENT Ltd 12 March 1973 [13 March 1972] 11659/72 Addition to 1357521 Heading A4F A ship's hold is provided with washing means therefore comprising a washing liquid supply pipe 3 carrying a washing machine 8 at one end and mounted on a pivot 4 adjacent its other end so as to be movable between the operative position A and a stowed position B immediately beneath the hatch cover, means being provided below the pivot 4 for clamping the pipe 3 in its operative position, and means being provided at or adjacent the clamping means for supplying washing liquid to the pipe 3. The upper end 3a of the pipe 3 has a projection 9 engaged in the operative position in a hole in a coaming plate 10 and held by a toggle nut a screwthread on the projection 9 receiving a coupling for a liquid supply hose. The pipe 3 has a further projection 32 coupled by a cable 41 to a winch for raising the pipe 3 to its stowed position B, where it is held by rotating a handwheel 44 to screwthread a shaft into the end cap 33 of the projection 32. In further embodiments, Figs. 9 to 14 (not shown) the liquid supply pipe has a different pivotal support and is clamped in its stowed position by the engagement of a rod (143) and a bolt (143b in a lug (133) on a projection (132) on the liquid supply pipe ((103).
Patent GB-550598-A (GB)
Title: Improvements in or relating to adjustable straps, belts, bands and the like
IPC: A44B11/04
Filed: 1941-09-12
Abstract: 550,598. Belts, overalls &c. KLINGE, W .H. E. Sept. 12, 1941, No. 11708. [Class 141] The brace 5 of a bib and brace overall is secured by passing its end through slots 2.and 3 in the bib 1 and round a strip or bar 4 of metal or textile material secured at its ends to the bib adjacent to one of the slots. The strip 4 may be formed by cutting two further slots in the bib. The ends of a belt may be similarly fastened together.
Patent GB-1472170-A (GB)
Title: Alloy compositions
IPC: C22C19/05
Filed: 1976-03-24
Abstract: 1472170 Cast nickel base superalloy CABOT CORP 24 March 1976 [27 March 1975] 11784/76 Heading C7A A cast alloy having high thermal stability and oxidation resistance up to 1600F and high retention of ductility on ageing comprising:- wherein the alloy has an electron vacancy number between 2À23 and 2À31. The alloy may be used in the form of cast components for jet engine applications at temperatures up to 1600F.
Patent GB-626304-A (GB)
Title: Improvements in and relating to directional antenna systems
IPC: G01S13/68
Filed: 1946-04-17
Abstract: 626,304. Phase difference and power factor measurements. BRITISH THOMSONHOUSTON CO., Ltd. April 17, 1946, No. 11872. Convention date, July 30, 1943. [Class 37] [Also in Groups XXXV and XL (c)] In a means for automatically maintaining the aerial of a radar system aligned with the target (see Groups XXXV and XL (c)) the aerial is scanned conically about its axis so that echoes from a target displaced from the scan axis are modulated at the scan frequency and the misalignment is a function of the phase and amplitude of the modulation signal thus obtained. In order to obtain an azimuthal D.C. error voltage, the modulation signal is compared with a reference voltage of scan frequency which is applied in push-pull to the anodes of the double triodes 26 and 27, the modulation signal being applied in push-pull to the grids of valve 26 and in reverse phase to the grids of valve 27. Valves 26 and 27 are thus rendered conductive by an amount depending on the relative phase of the modulation and reference voltages and on the amplitude of the modulation voltage in such a manner that when the two voltages are in phase quadrature equal positive D.C. voltages are produced across the condensers 40 which are in parallel with the cathode resistances 261, 271 and any departure from this phase condition results in a push-pull change in the voltages across the condensers. An elevational error voltage is produced by a similar circuit comprising valves 28 and 29, the elevational reference voltage being in phase quadrature with the azimuthal reference voltage.
Patent GB-558823-A (GB)
Title: Improvements in and relating to closure caps or stoppers for containers
IPC: B65D45/06
Filed: 1942-08-24
Abstract: 558,823. Closures for oil &c. containers. ANGLO-IRANIAN OIL CO., Ltd., and VIVIAN, A. C. Aug. 24, 1942, No. 11886. [Class 125 (iii)] The closure cap 1 of a container for motor spiric &c. is provided with a spindle 11, having a cam portion 12, carried in apertures 10 in upstanding brackets 3 on the cap. The spindle 11, in the closed position of the cap, is engaged in abutments 9, formed in upstanding brackets 8, and by partly turning operating knobs on the spindle 11, the cam portion 12 presses the cap into firm sealing engagement with the aperture 6 of the container. The cap is pivoted at 7 to the brackets 8, the bearing holes 5 in the brackets 3 allowing for limited freedom of movement of the cap. A retaining plate 17 keeps the cap in the open position when required. A bearing plate 13 may be provided on the cap below the cam portion 12, which may alternatively be provided with a lever portion 15, Fig. 4, to assist manipulation, instead of knobs. The brackets 8 may be formed integrally with the mouth fitment of the container. The operating lever 15 of the spindle 11 may be provided with slots 23 to engage a pin 24, or with ears which frictionally engage the brackets 8 or a handle on the container, to hold the cap in the open position. The container mouth fitment may be provided with a vent pipe 25. A sealing wire may be provided for the closure cap.
Patent GB-153614-A (GB)
Title: An improved construction of frame or stand for root cutters, kibbling mills and likemachines used for agricultural purposes
IPC: B26D1/29
Filed: 1919-05-12
Abstract: 153,614. Bingham, G. C. May 12, 1919. Cutting and slicing vegetables; chaff, cutting. - The stands, framework, &c. of root cutters and cleaners, chaffoutters, and like stationary agricultural machines are constructed of concrete, which may be reinforced, or fased or strengthened with metal shavings or turnings. Fig. 7 shows a disk root-cutter having a concrete body made in three pieces d, e, f, the pieces e, f being hinged to the piece d. A root-cutter of pan type comprises two pieces of concrete, the tubular body and pan forming one piece and the shoot forming the other. The body, legs, and feed-box of a chaff-cutter may be made in one piece of concrete, or the body and front leg only. In a power chaff-cutter, the body and the front bar may be made of concrete in one or two pieces, or the front bar may be metal. The concrete may be reinforced by means of wires wound around ferrules provided with projecting tongues.
Patent GB-372080-A (GB)
Title: Improvements in or relating to methods of manufacturing mercury vapour filled electron tubes
IPC: H01J9/395
Filed: 1931-04-22
Abstract: 372,080. Electric discharge tubes. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. April 22, 1931, No. 11953. Convention date, April 22, 1930. [Class 39 (i).] In an electronic discharge tube of the kind having a filling of mercury vapour derived from a predetermined quantity of mercury contained in one or more small retaining vessels in communication with the interior of the tube, each such vessel is in the form of a capillary tube centrally enlarged and open at one or both ends, the mercury being released therefrom by the application of heat, derived e.g. from high frequency currents or from an external flame. Thus a capillary tube may be heated locally and subjected to internal pressure to provide enlargements E, Fig. 2, the tube being then filled with mercury and cut into sections such as K, Fig. 1. One or more such sections may be fixed to a metallic part of the electrode system, e.g. to the anode A or, as shown, to a metal plate M above the anode. Alternatively, the one or more sections K may be introduced into the pump lead of the discharge tube.
Patent GB-1175214-A (GB)
Title: Gas Oven.
Inventor: BARNES HUGH VERNON
IPC: F24C3/12
Filed: 1967-03-14
Abstract: 1,175,214. Valves. RADIATION Ltd. 3 May, 1968 [14 March, 1967], No. 11969/67. Heading F2V. [Also in Division F4] A gas oven has an operating member 40 for turning on the main gas supply to the oven bumer(s) which can be reached for actuation only when the door of the oven is open. The member 40 comprises a push-button within the oven secured to the lower end of a link lever 38 pivotally mounted at its upper end as a bracket 37 and carrying a screw 39 actuating the main gas supply valve 1. A second operating member comprises a push-button 44 which in the inoperative position, viz. with the gas supply off, is pushed in and shrouded by the front panel of the oven and is pivotally linked to the lever 38 by an L-shaped lever 41, one end of which is secured to the blade 43 of the pushbutton and the other end having a cut-out portion 48 with two surfaces 49, 50 separated by a shoulder 51. The lever 41 is biased in a clockwise direction by a spring 47 around the pivot axis of the lever so that the link lever 38 bears against the shoulder 51 or against a further abutment 53 on the lever 41. Operation of the push-button 40 both actuates the valve and also under the bias of a spring around the pivot axis 52 has a detent action with the portion 48 of the lever 41 to project the button 44 and so indicate that the gas supply is turned on. In further embodiments the L-shaped lever 41 is replaced by an inverted T-shaped member, pivotally mounted and connected at one arm to a vertical link lever to the push-button within the oven. The upper limb of the member actuates the main gas supply valve and the second arm is connected by a detent mechanism to the push-button on the front panel of the oven. The vertical link lever may be connected to the push-button within the oven either by means of a rotatable double flanged wheel riding on the shank of the push-button between two positions or the link may be pivoted about a fixed pivot point adjacent the push-button. The oven gas control tap has a disc valve cooperating with a valve seating, the valve being of the poppet type with an internal spring to bias the valve to the closed position.
Patent GB-590324-A (GB)
Title: A process for the manufacture of vinyl chloride
IPC: C07C17/25
Filed: 1943-07-23
Abstract: Vinyl chloride is prepared by reacting ethylene dichloride with an inorganic alkali in amount sufficient to combine with one molecule of hydrogen chloride per molecule of ethylene dichloride, in the presence of a monohydric, aliphatic or cyclo-aliphatic alcohol containing at least four carbon atoms in the molecule and in which the inorganic alkali is, at least in part, soluble, at a temperature above 60 DEG  C.  In a preferred embodiment of the invention, the alcohol and alkali are heated under reflux until a part of the alkali has been dissolved, then ethylene dichloride, in an amount equivalent to that of the alkali, is allowed to run into the solution preferably with stirring.  The generated vinyl chloride passes through an efficient reflux condenser, and after washing and drying is condensed.  The reaction residue may be heated and the solvent and unreacted ethylene dichloride recovered by fractional distillation, or the residue may be treated with water to dissolve the salt formed and the organic layer of alcoholic solvent and unreacted ethylene dichloride separated and fractionally distilled.  In examples, n-butanol, amyl alcohol and cyclohexanol are employed as the alcoholic solvents and sodium and potassium hydroxides as inorganic alkalies.