baber/WOPTO huggingface dataset:
Patent GB-939754-A (GB)
Title: Improvements in or relating to height measuring devices
IPC: A61B5/107
Filed: 1962-07-24
Abstract: 939,754. Measuring tapes. ETABLISSEMENTS QUENOT & CIE. July 24, 1962 [Jan. 25, 1962], No. 28360/62. Class 106 (2). A measuring tape device with a spring rewind, adapted for measuring the height of people, has a coiled tape 4 reversely graduated so that when the end of the tape is fixed (by means of a nail 7 through a hole 6) a given height from the floor, with the L-bracket 9 carrying the housing 3 resting on the floor, a zero reading is obtained in the window 5, the height from the floor to which the bracket is subsequently raised being then directly observed. A reference mark 8 is provided in the window for accurate reading, and the outlet slot for the tape is grooved for accurate guiding. At the zero mark the tape has notches 19 co-operating with projections 20 in the housing for locking the tape in the fullyextended " zero " position.
Patent GB-916934-A (GB)
Title: Improvements relating to the production of organic fluoro-iodo compounds
IPC: C08F4/00
Filed: 1961-08-04
Abstract: A fluoroalkene or fluorocycloalkene is reacted with iodine in the presence of an alkali metal fluoride so as to obtain a fluoroalkyl or fluorocycloalkyl iodide.  The reaction is preferably carried out above 50 DEG C. and, when gaseous or low boiling compounds are treated, under pressure.  Lithium, sodium, potassium, rubidium, or caesium fluoride may be used.  The reaction may be effected in presence of an inert organic medium such as acetonitrile, dimethyl formamide, N-methyl pyrrolidone, dimethyl sulphoxide, dimethyl sulphone, or dimethoxy ethane. Specified fluorine-containing starting materials include hexafluoropropylene, 8-H-perfluoro-1-octene, tetrafluoroethylene, hexafluoro-cyclobutene, octafluoro-2-butene, chloro - trifluoro - ethylene, 1.1-dichloro-2.2-difluoroethylene, and vinylidene fluoride.  Examples describe the production of heptafluoro-isopropyl iodide, 8H-2-iodo-per-fluorooctane, pentafluoro-ethyl iodide, heptafluoro-cyclobutyl iodide, 1-chloro-1.2.2.2-tetrafluoro-ethyl iodide, and 1.1-dichloro-2.2.2-trifluoroethyl iodide.  Other examples are given.
Patent GB-1303084-A (GB)
IPC: H03K3/037
Filed: 1970-06-12
Abstract: 1303084 Transistor logic circuits INTERNATIONAL BUSINESS MACHINES CORP 12 June 1970 [16 June 1969] 28509/70 Heading H3T Emitter coupled current switches 60, 58, 62 and 64 each have common collector and common emitter lines 132, 124, and 110, 104 &c. for the input-receiving transistors 116, 118 and 90, 92 &c., the collector line of a first switch 60 being connected to the emitter line of a second switch 58 (through T105) and to a first node 66, the third and fourth switches 62, 64 being similarly connected to a second node; and the two nodes are connected to further similar current switches 70, 71. The further switches are cross-coupled. Switches 58, 64 are OR gates for positive signals and 60, 62 are NOR gates. The nodes 66 (and 68, Fig. 2, not shown) provide feedback inputs E, F to the first transistor of each switch 58, 60, 62, 64 the second transistors of the NOR gates receiving a control signal C, and the second transistors of the OR gates receiving antiphase inputs A, B. When C is up, nodes 66, (68) are down and the circuit is inhibited; when C goes down, the OR gates respond to A, B and the feedback E, F latches the switches 58-64. Emitter followers 42 connect the nodes 66, (68) to the cross-coupled switches 70, 71 which are NOR gates so that an up signal to any of the common-collector, common-emitter transistors produces a down signal at the output emitter follower 42. Set and reset inputs are included in gates 70, 71 and in another embodiment, they may also be applied to gates 58-64 (Fig. 4, not shown). The transistor 138 with base bias divider R140, R142 forms an antisaturation load circuit for switches 58, 60, and similar loads are provided for the other pairs of switches.
Patent GB-653516-A (GB)
Title: Fuel control system
IPC: F02C7/22
Filed: 1947-10-24
Abstract: 653,516. Gas-turbine power plant. BENDIX AVIATION CORPORATION. Oct. 24, 1947, No. 28524. Convention date, Aug. 20, 1945. [Class 110(iii)] [Also in Group XXIX] A fuel supply system for a gas turbine or jet propulsion engine comprises a pump driven by the engine and supplying fuel through a conduit to the burners, pressure-responsive means in the conduit for controlling the flow and subject to a pressure intermediate the inlet and outlet pressures of the pump, and manually-controlled means to vary the control pressure. As shown, fuel is fed by an enginedriven pump 50 with a relief byepass valve 58 to the inlet 124 of an engine-driven centrifugal pump 130. The output of the latter flows along a passage 132 and past a restriction 134 to a chamber where it acts on the underside of a diaphragm 90 controlling the metering valve 79. The valve is loaded into contact with the diaphragm by a spring 84 and the diaphragm is loaded by a spring 100 located between the diaphragm 90 and a further diaphragm 70. A control pressure acting on the upper side of diaphragm 90 is produced by allowing the fluid in passage 132 to leak past needle valves 140, 166 and a flow of this leakage fluid is permitted past a restriction 120 back to the inlet of the pump 130. Valve 140 is actuated by an altitude-responsive bellows 148 which may be only partially evacuated. Valve 166 is controlled by a manually-actuated lever 198 which acts through an abutment 186, a spring 190, and a diaphragm 178, the latter also being acted upon on its under side by the pressure in passage 132. If lever 198 is swung over in a clockwise direction, an arm 202 thereon will push on and depress a rod 114 to shut down valve 79. Reference has been directed by the Comptroller to Specifications 588,083, 603,884 and 604,466.
Patent GB-599416-A (GB)
Title: Improvements in or relating to walls
IPC: E04B2/58
Filed: 1945-10-30
Abstract: 599,416. Walls. WELDON, W. P. Oct. 30, 1945, No. 28658. [Classes 20(iv) and 87(i)] A cavity wall is constructed by applying a facing .of bricks, tiles or the like G to a metallic mesh or fabric D and subsequently applying cement or other plastic composition to the backs of the bricks to encase the mesh D, the opposite facing B then being applied. As shown, the wall is supported by vertical columns consisting of two T-sectioned members C positioned with the flanges spaced, say, two inches apart. The T-members may each be built up of two angle-irons. Horizontal girders, e.g., channel members arranged back to back in pairs, are secured one to each of the vertical members C. The metallic mesh D is cut into rectangular or other shaped panels of the required form, and a frame of flat-sectioned members E is secured to the edges or margins of the panels, e.g., by welding, the members E being, in turn, secured to the vertical members C, and if necessary, to the horizontal channel members, by welding, or by bolts or rivets F. The bricks G are formed with top, and bottom co-operating rabbets H, I and with a groove K in a rearwardly extending lug J which is about one half as long as the brick. The grooves K are hooked on to the horizontal members of the mesh D. Some of the bricks may have the lugs J recessed to clear the frame members E, and, if a small-mesh lattice D is to be used, two or more laterally spaced lugs J may be provided on each brick. When the bricks have been hung upon the mesh D, the spaces L are filled with jointing material, after which the backs are sprayed, or otherwise coated with plastic material to encase the mesh. The blocks P of the facing B extend between two outer T-sectioned members C or between one such member and a window or door frame, the frame being of channel section to provide flanges to lie outside the adjacent bricks G and the marginal parts of the blocks P. The channel also has two spaced ribs, pressed therein, running parallel with the flanges and directed away from the door or window opening, the bricks and blocks being accommodated between their associated rib and flange. The blocks P are cast or formed with complementary ribs and grooves Q, R, and may be of concrete, brick or wood.
Patent GB-807536-A (GB)
Title: Improvements relating to safety cut-off valves
IPC: F16K17/26
Filed: 1956-09-19
Abstract: 807,536. Fluid pressure brakes. STOCKEBRAND, J. L., VERMEHREN, L., and FOX, R. O. Sept. 19,1956, No. 28659/56. Class 103 (1). [Also in Group XXIX] A safety cut-off valve for fluid operated vehicle brakes comprises a tubular housing 2 having an inlet 20 (not shown) for the supply of fluid under pressure and an outlet 8 at each end for connection each to the brakes of one or more wheels of a vehicle, each outlet having a coupling member 3 to which is secured a valve guide 4 containing a conical valve seat 6 and radially disposed restricted passages 7 which connect the valve chamber 1 with the bore 8. A valve rod 9 is supported by the valve guides and has its extremities formed as valve closure members 12. The valve rod is normally held in the central position by spiral springs 13, but moves to close one or other of the outlets in response to a sudden increase in the flow of fluid through either outlet to maintain the fluid pressure within the housing and the other outlet. The rod 9 is held firmly in the closed position by the wedging action of the conical surfaces of the valve member and its seat. To centre the rod a pointed tool is introduced through a hole 17 (not shown) in the housing 2 to engage the groove 16 in the rod and move it to the centre.
Patent GB-751937-A (GB)
Title: Improvements in and relating to motor trucks carrying a foldable crane
IPC: B66C13/18
Filed: 1954-10-05
Abstract: 751,937. Mobile collapsible jib cranes. BERNAERTS, H. F. J. Oct. 5, 1954 [Oct. 13, 1953], No. 28706/54. Class 78 (4). The jib of a folding mobile crane folds rearwardly relatively to a boom 6 which in turn folds forwardly about the rear axle of a truck by which it is carried. In the form illustrated the truck comprises a rear frame 4 connected by a universally jointed coupling 9, 10, 33, 34 to a tractor frame 1. The gauge of the rear wheels 5 may be altered when these are supported by a jack 32. When the crane is to be used the boom 6 is raised to a vertical position by a telescoping jack 13 and the jib 7 is raised by a jack 12 sufficiently to permit it to be raised from the jack by a cable 37 which is looped over a pulley 25 on the boom 6 and passes over a pair of pulleys 24 on the jib and pulleys 23 on the boom to actuating tackle 22, 21 operated by a ram 38. The beam 6 is pulled rearwardly when the crane is to be folded by a cable 39 secured at both its ends to a pin 26 on the boom and carried over pulleys 23, 22, 27 and 28 and over pulleys 30 carried by a ram 40 to a reversing pulley 31. The hoisting cable 36 passes from a purchase at the end of the jib over pulleys 17 and 18 on the pivoting axles of the jib 7 and boom 6 to a winch 14 carried by the frame 4.
Patent GB-234941-A (GB)
Title: Improvements in or relating to tools for milling, filing and other surfacing operations on metal and other materials
IPC: B23D71/00
Filed: 1924-08-14
Abstract: 234,941. Platt, J. Aug. 14, 1924. Milling-cutters.-A milling &c. cutter is made by cutting teeth on the surface of a flat strip of high-speed steel, and then bending the strip into a complete cylindrical form and mounting the same on a body part. The teeth may be axial or helical. The toothed-strip A may be secured to the body B by brazing, and the hardening of the teeth may be combined with the brazing operation. The strip may also be secured by clamping a split grooved rim B<1> thereon by nuts B5.
Patent GB-1112822-A (GB)
Title: Improved bearing material
Inventor: GARDINER NORMAN ARTHUR
IPC: C08L27/12
Filed: 1964-07-08
Abstract: Bearing materials comprise polytetrafluoroethylene in powder, granular or fibrous form uniformly distributed throughout and firmly incorporated in a cured furane resin.  The compositions may also comprise graphite, molybdenum disulphide, whiting, lead oxide, asbestos powder or fibre and metals, e.g. lead and bronze powders and fibres.  The compositions may be moulded or applied to backings to give bearings. An example describes a composition comprising furane resin, graphite, lead powder and polytetrafluoroethylene.ALSO:Bearings comprise substrates coated with materials comprising a fluorocarbon resin in powder, granular or fibrous form uniformly distributed throughout and firmly incorporated in a cured furane resin matrix.  The substrate may be a metal strip, e.g. of steel or aluminium, or a fabric, rubber or laminated plastic. The material may also comprise graphite, molybdenum disulphide, whiting, lead oxide, asbestos and lead and bronze powders and fibres. In an example a material comprising polytetrafluoroethylene, furane resin, graphite and lead powder is spread and moulded on a strip of degreased and shot-blasted aluminium.
Patent GB-1511157-A (GB)
Title: Manufacture of composite articles from thermoplastics materials
IPC: A44B11/24
Filed: 1975-07-08
Abstract: 1511157 Buckles AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 8 July 1975 [9 July 1974 15 July 1974] 28768/75 Heading E2A [Also in Division B5] An article having at least two parts relatively movable but inseparable, e.g. a hinge, a T-tongue buckle (Fig. 1) or a sliding-bar buckle (Fig. 4) has the relatively movable parts made of two different thermoplastics, which do not stick to one another. One part, particularly the tongue 3 or the bar 25 may be of a polyamide, while the other part may be of an acetal or a low pressure high density polyethylene. The article may be made by injection moulding (see Division B4-5).
Patent GB-359382-A (GB)
Title: Machine for milling or rectifying toroidal surfaces
IPC: B23Q1/54
Filed: 1930-09-25
Abstract: 359,382. Grinding. MASINI, M., 59, Via Cernaia, Firenze, Italy. Sept. 25, 1930, No. 28770. Convention date, Oct. 3, 1929. [Class 60.] Internal or external toroidal surfaces are cut or ground by a tool revolving about its own axis and about an axis parallel and of variable eccentricity relative thereto, the work being oscillated about an axis perpendicular to the axis of the tool, and displaced therefrom. As applied to an internal toroidal surface, the work is carried on a table 5 pivoting on a shaft 6 and oscillated thereabout by a segment 7 meshing with a vertically reciprocating rack 8 having internal crossed right- and left-hand threads engaged by a projection 9 on a shaft 10 continuously rotated from the main drive shaft 4 through a gear train. The work carrier may be moved longitudinally by a screwed shaft 19, and transversely by similar means. The tool 1 may be a truncated sphere and engage the work over the whole of the circumference of a circle of contact, or may be a solid generated by the revolution of the arc of a circle about a line not passing through its centre the tool in the latter case being imparted an eccentricity of such a value that its surface describes the surface of a sphere. The tool spindle 2 is eccentrically mounted in a member 23 in turn eccentrically mounted in a main rotating member 24 driven by a pinion 26 and a gear train from the main shaft 4. The tool is rotated from the shaft 4 through gearing 29, a shaft 30, gears 32, a shaft 31, and gears 33, and its eccentricity may be varied by effecting a relative rotation between the members 23, 24. This may be effected by axial movement of a sleeve 41 having threads of opposite hand or of different pitch engaging similar threads on hollow spindles forming extensions of the members. The movement may be controlled by a spindle 46, a worm, a worm wheel 45, and a collar 42 in screw-threaded engagement with the worm wheel.
Patent GB-920481-A (GB)
Title: Tumbler switch with spring release
IPC: H01H5/18
Filed: 1961-08-09
Abstract: 920,481. Snap action switches; thermal switches. LANDIS & GYR A.G. Aug. 9, 1961 [Sept. 7, 1960], No. 28801/61. Class 38 (5). A snap action switch comprises a leaf spring 14 cut away to form two tongues 7, 8 extending from opposite ends of the spring, one end of which is clamped and the other is free to move between fixed contacts 20, 21. The two tongues are biased apart by a second spring 15 which engages the tongue 8 between its ends while the free end of tongue 8 moves between two stops. The stops are formed by the upper and lower edges of a slot 26 in a bracket 5 which also serves to support a return spring 23. On depression of the tongue 7 beyond the dead-centre position, first the free end of tongue 8 moves upwards to engage the upper stop and then tongue 8 pivots rapidly about the stop to change over the contacts. The arrangement ensures that a residual contact pressure remains up to the instant of breaking, thus reducing sparking &c. The differential lift can be varied by altering the separation of the stops. Any variation of the lift due to burning away of contacts is stated to be reduced by arranging that the line of support of the spring 15 on the lever 7 in its dead-centre position is closer to the stops than is the line of intersection of the planes containing the tongue 8 in its two end positions (Fig. 10, not shown). In a thermostat (Fig. 4), the sensing element is a heat expansible tube 36 attached at one end to a base plate 27 and at the other to a low expansion rod 35. The free end of rod 35 acts on a pivoted lever 33 to operate the switch. The operating temperature is variable by means of a screw-threaded knob 37 on the end of rod 35.
Patent GB-1114416-A (GB)
Title: Improvements relating to the determination of oxygen distribution
Inventor: METCALF ARNOLD
IPC: G01N23/222
Filed: 1964-07-13
Abstract: 1,114,416. Radiographic examination of material via neutron irradiation. PLESSEYU.K. Ltd. 16 July, 1965 [13 July, 1964], No. 28803/64. Heading H5K. [Also in Division G1] Oxygen distribution in material is determined by activation of the oxygen content by bombardment with high energy neutrons to produce a radioactive isotope of nitrogen. The high energy gamma radiation resulting from the activation during the period when the radioactive isotope decays back to stable oxygen is detected and a viewable light pattern is produced indicative of the oxygen distribution in the material, in dependence upon and contemporaneously with such detection. A steel test-piece 1 is subjected to high energy neutrons emitted from a neutron generator within a shielded enclosure 3. The activated test-piece 1 is then positioned adjacent a metal strip 4 which receives gamma radiation and emits electrons. The emitted electrons impinge on an electron sensitive phosphor 5 to produce a light pattern corresponding to oxygen distribution in the test-piece 1. The phosphor 5 is coupled to an image intensifier 6 and the magnified image is viewed on a fluorescent screen 7. Alternatively the image may be viewed with binoculars or a binocular microscope. If the test-piece is relatively thin, an improved image representation may be obtained using two gamma radiation detectors arranged one on each side of the test-piece and by superimposing the two determinations. Alternatively, the gamma radiation may be sensed directly by a screened gamma-sensitive phosphor or by a bundle of phosphors, to produce a light pattern corresponding to the oxygen distribution. When it is also required to obtain an assessment of the total oxygen content, then an aggregate number of impulses derived from detecting equipment comprising a multiplicity of fibre phosphors and representing the total oxygen content may be recorded. Improved sensitivity may be obtained by use of a large gammasensitive scintillator (instead of strip 4 and material 5) optically coupled to a multiplier phototube.
Patent GB-601191-A (GB)
Title: Improvements in the polymerisation of vinyl acetate in emulsion
IPC: C08F20/12
Filed: 1945-10-30
Abstract: Vinyl acetate is polymerized in aqueous emulsion which is heated, under non-turbulent conditions and under substantially atmopheric pressure, to a temperature continually maintained below 50 DEG  C. With concentrations of 30-60 per cent of the monomer apparatus having a large cooling surface to volume ratio is used, e.g. tubular reaction vessels, a coil submerged in a bath or multi-tubular condensers.  Catalysts such as hydrogen peroxide, ammonium persulphate, lauryl peroxide, crotonyl peroxide or hexhydrobenzoyl peroxide, accelerators such as sodium bicarbonate or carbonate, sodium borate, sodium acetate, ammonium acetate, zinc or magnesium oxide, emulsifiers such as the sodium salt of the sulphonate of di-octyl succinic esters, soaps, higher alkyl sulphonates, cetyl and stearyl alcohols and the sodium and trimethanlamine salts of the sulphates thereof, and regulators such as cetyl mercaptan and aldehydes such as acet-, butyr-and propion-aldehydes, may be added. Specification 581,281 and 598,506 are referred to.
Patent GB-159287-A (GB)
Title: A combined pressure gauge and valve for pneumatic tyres
IPC: B60C23/00
Filed: 1919-11-20
Abstract: 159,287. Graham, J. E. Nov. 20, 1919. Tyre valves. - A combined valve and gauge consists of a casing a fixed to the tyre by a flange a<1>, and screwed internally for a part of its length to receive a loading plug d that is graduated to show the load on a control spring f supported on a disc e. The load applied to the spring for any graduation is less than that indicated by the adjusted plug; but when the piston that moves the observed indicator has risen by a constant amount, the adjustment graduation pressure will be reached. The indication for this pressure. is a groove upon the piston rod passing outside a cap, so that it may be seen or felt. Screwed on to the casing is the indicating cap g, fitted with a dust cap. A hollow piston b with a washer a and a rod c slides within the casing and carries a valve i having a rod k restricted in its movement by a spring clip (not shown). When not in use the dust cap is screwed on to the cap g, so that the piston b is depressed and the valve i is seated closing theport a<2>. In use the dust cap is removed and air pumped into the tyre through the valve i, the piston rising against the disc e; when the pressure indicated by the loading plug as set is reached, the piston rod has been raised sufficiently to show a groove c<3> cut in the rod c above the top of the cap. A second groove c<4> is visible at themaximum limit of pressure,. According to a modification the barrel is ridged and the piston has a semi-circular reaction surface. In another modification a solid piston and rod are used and the valve i works in a nozzle on the side of the casing, being double-seated.
Patent GB-840550-A (GB)
Title: Signal strength controlling means for signal receiver systems employing semi-conductor devices
IPC: H03G3/30
Filed: 1956-09-21
Abstract: 840,550. Transistor gain control circuits. TEXAS INSTRUMENTS Inc. Sept. 21, 1956 [Oct. 21, 1955], No. 28940/56. Class 40(6). An automatic gain control circuit comprises a semi-conductor signal amplifier to one electrode of which is applied a first automatic gain control voltage and providing at another electrode a second automatic gain control voltage which is applied to a non-linear resistor in shunt with the signal path to render the non-linear resistor effectively conducting only when the signal exceeds a predetermined value. The Figure shows the input circuit of a receiver comprising a tuned ferrite rod aerial 10, an RF amplifier and mixer stage 15 and an IF stage 17. These stages are followed by an AGC rectifier which provides a control voltage for the base of transistor 17. Across the aerial coil is connected a junction diode 22 biased to be non-conducting until the AGC voltage has reduced the voltage across an emitter resistor 20 to a predetermined value whereupon the diode is rendered conducting and helps to maintain the output of the receiver constant. In addition, the increasing damping effected by the diode tends to offset the decreased damping on the circuit due to the increasing input resistance of the transitors as the AGC voltage increases and the band width of the receiver remains more nearly constant. The control voltage for the diode may alternatively be derived from a resistor in the collector lead.