baber/WOPTO huggingface dataset:
Patent GB-105086-A (GB)
Title: Improvements in Apparatus for Adding Chemical Reagent to Water or other Liquid.
Inventor: PATERSON WILLIAM
IPC: C02F1/68
Filed: 1916-03-22
Abstract: 105,086. Paterson, W. March 22, 1916. Fluid-actuated valves. -In apparatus for adding chemical reagents to water or other liquids, wherein a proportion of the total flow is bypassed from a main a and through a pipe f to the reagent - container and then rejoins the main flow, the proportion by-passed is maintained constant by connecting the by-pass valve d to a device, such as a disk b within a cone c, or a piston within a slotted cylinder, or a flap valve, the position of which varies in a manner dependent upon the rate of flow of liquid in the pipe a.
Patent GB-1017316-A (GB)
Title: Improvements relating to spherical plug valves
IPC: F16K5/06
Filed: 1964-01-31
Abstract: 1,017,316. Valves. A. C. F. INDUSTRIES Inc. Jan. 31, 1964 [Feb. 4, 1963], No. 4319/64. Heading F2V. A rotatable spherical plug valve comprises a body A having a chamber 10, a spherical valve member B positioned in the chamber and having a port 20 extending therethrough, two end members C secured one to each end of the body and having frusto-conical inner ends 14, each with a seat groove 16, and a seat member D located in each groove, each seat member in its free condition comprising an annular ring having a frusto-conical face portion 46 opposing the spherical valve member, the relation between the other walls of the seat member and its groove being such that upon assembly of the valve the frusto-conical face 46 wil rotate outwardly away from the axis of the valve bore causing the inner wall 36 of the seat member to lose contact with the corresponding wall of the groove and the outer wall 38 of the member to approach the corresponding wall without making contact, a conical portion 44 at the back of the seat member also approaching the bottom of the groove without making full contact. A slot 22 for engagement by the valve spindle E is disposed at right angles to the valve bore so that the valve member may be displaced by fluid-pressure against the downstream seat which then makes full contact with the groove along its faces 38 and 44. The seat members may be of P.T.F.E., nylon, polychlorotrifluoroethylene or hard rubber and may incorporate a dry lubricant or a filler such as asbestos or glass fibre.
Patent GB-767887-A (GB)
Title: Improvements in or relating to electric surface heating or cooking units
Inventor: MEYRICK PAUL MILTON
IPC: H05B3/76
Filed: 1955-02-15
Abstract: 767,887. Electric hot-plates. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Feb. 15, 1955, No. 4460/55. Class 39(3) A hot-plate or surface heater comprises. a tubular metal-sheathed electric resistance heater 14 bent to form a horizontal heating surface and having on its underside U-shaped members 46 arranged to. interlock with horizontal tongues 42 formed on radial legs 28 of a supporting spider 27 so as to permit limited sliding movement but prevent detachment of the spider from the heater. The spider has three legs at an angle of 120 degrees, two of the legs 28b, 28c being integral with one another; and after engagement of the tongues 42 of these legs with the U-shaped portions 46 welded on to the underside of the spiral heater, the third leg 28a is similarly engaged with the U-shaped portions 46, and a flange 40 on the inner end of the leg 28a is fixed as by welding to the leg 28c. The ends 24 of the heater are bent downwardly and outwardly so as to extend under the hob 12 of a range and extend through a plate 25 forming a drip shield. A bent rod 48 is welded at one end 52 to the leg 28a and is welded intermediate its length to the plate 25, the outer end of the rod being bent back at 50 to enter an aperture 54 in a bezel ring 30 resting on the range hob 12. A reflector 37 has a flange 38 resting on an inner flange 36 of the bezel 30, and the spider 27 rests on the flange 38. A small finger 56 formed at the end of a spider leg 28a enters a recess in the vertical flange 32 of the bezel. An inverted cup-shaped plate 60 is attached centrally to the spider. Reference has been directed by the Comptroller 'to Specification 642,264.
Patent GB-222032-A (GB)
Title: Improvements in or relating to flat electric cables
IPC: H01H63/02
Filed: 1924-02-22
Abstract: 222,032. International Electric Co., Ltd., (Akt.-Ges. Mix & Genest Telephon und Telegraphen Werke). Feb. 22, 1924. Automatic exchange apparatus; selectors.- A flat cable with branches is manufactured by winding the conductors so as to bring them to the edge of the cable where the branches are to be taken off. Each section of the cable extends from one selector contact set k, for instance of an automatic telephone exchange, to the next one in the series, the conductors of the sections being connected in a continuous manner when secured to the selector contact sets where the adjoining sections overlap. The cable is specially adapted for use with selectors of the Strowger type having parallel rows of contacts, the conductors being connected to a plurality of adjoining rows of contacts.
Patent GB-536164-A (GB)
Title: Improvements in maximum demand or load indicators for polyphase electrical circuits
IPC: G01R11/60
Filed: 1940-03-12
Abstract: 536,164. Current meters. HARPER, W. F. N., and P. & B. ENGINEERING CO., Ltd. March 12, 1940, No. 4605. [Class 37] Apparatus for indicating or measuring the total simultaneous maximum demand or load on polyphase circuits comprises single-phase maximum demand or load indicators a, b, c connected in or to the several phases so that such indicator responds to the current in an individual phase-circuit, the several indicators having their pointers or equivalent moving parts a<2>, b<2>, c<2> coupled mechanically together as by a link so that the moving system is controlled by the total current at any moment. The central indicator b has a pointer b<2> suspended upon two bimetallic coils b<3>, b<4>, Fig. 2, having their outer ends coupled together at b<5>. The pointer is attached to the inner end of the coil b<3>, the inner end of the other coil b' being fixed to one end of a spindle b<0> passing through a supporting plate b<6> which shields the coil b<3> from the heating element. The other end of the spindle b<0> is secured to a transverse rail g, and an auxiliary pointer f is mounted coaxially with the pointer b<2> on the front of this rail. The pointer f has a projection #<0> engaged by the pointed b so as to register the maximum reading and is balanced by a sector f<1> having a tailpiece f<2> operated by a resetting device h. To prevent undesired movement of the pointer f it is provided with a hub #<3> forming a brake drum encircled by a spring-tensioned chain #<4> connected to an anchorage g<1> on the rail g. The indicators a, b, c are of the thermal type described in Specification 370,543, the heating elements such as b<1> being provided with heataccumulators b<9>. The two outer indicators a, c are provided with crank arms a<2>, c<2> suspended in a similar manner to the pointer b <2>. The indicators a, b, c are mounted on a rigid frame k supported elastically within the casing l to prevent vibration. The frame k is supported on three studs m passing through felt-lined holes in arms k<2> extending upwards and downwards from the frame, buffer springs n bearing against felt washers n<1> so as to cushion the movements of the frame. The heaters may be fed through transformers which have a gradually decreasing ration up to the maximum demand or load current so as to reduce the heating of the elements below the values representing the squares of the phase currents. Such transformers may be of the double-wound ring type with a limited amount of iron in the core so as to become saturated with increase of load.
Patent GB-1013194-A (GB)
Title: Power plant
IPC: F02C6/02
Filed: 1963-02-05
Abstract: 1,013,194. Combustion product plant. INGERSOLL-RAND CO. Feb. 5, 1963 [Aug. 30, 1962], No. 4614/63 Heading F1Q. In a power plant in which power units 18, Fig. 3 are located radially round a tank 8, each of the power units has its gas inlet connected to the tank by a pipe which includes an expansion joint 23 for accommodating thermal expansion of the tank, pipe and power unit and at least one gas generator 36 has its gas outlet connected to the tank for feeding hot gas to the tank from where it may flow to the power units. Tank 8, which is supported by brackets 9 having feet 10, Fig. 4 slidably supported on pedestals 12 and by a socket 15 which slides on stud 14, may be exhausted to atmosphere through valve 46, expansion joint 47 and chimney 5. Gas-expanding turbines 18 driving centrifugal compressors 32, for repressurizing and pumping back oil well gas, are secured to bed plates 20 and are supplied from tank 8 through a butterfly valve 24, Fig. 6, an expansion joint 23 and a blanking- off plate 25. Aircraft jet engines 36 i.e. gas turbine/compressor combinations which are cantilevered from conical diffuser pipes 37 are flexibly supported at their outer ends by a counterbalance system including flexible cables 38 and weights 40 and receive air from funnels 50. Valves 42 and 44 are provided whereby the jet engines 36 can discharge to atmosphere through exhaust conduit 43.
Patent GB-366293-A (GB)
Title: Conveying apparatus
IPC: B65G25/00
Filed: 1931-02-13
Abstract: 366,293. Canning food. SELLS, 0. S., 70, Pine Street, San Francisco, U.S.A. Feb. 13, 1931, No. 4631. [Class 49.] Sealed containers are conveyed through cooking or sterilizing apparatus in canning factories by a series of vertically reciprocatable members 10, Fig. 4, of hard wood which are reciprocated successively whereby the containers resting on them receive a movement substantially at rightangles to the reciprocating movement. The members 10 rest on eccentrics 16, Fig. 7, mounted on shafts 13, 14. The cooker 1, Fig. 1, is of square or circular cross section and contains a bank of propelling units 2 .. 5 connected at their ends by curved shoots fitted with deflectors 17, 18. The containers are admitted through a pocketed rotary valve member 6, and discharged through a similar member 8, and may be treated for different times by causing them to traverse one, two, three or four of the propelling units by varying the position of the deflectors 17, 18. Steam for heating is admitted by the pipe 20.
Patent GB-968122-A (GB)
Title: Improvements in rollers for the pressure treatment of webs of material
IPC: D21G1/02
Filed: 1962-02-07
Abstract: 968,122. Rollers. E. KUSTERS, [trading as TEXTILMASCHINEN EDUARD KUSTERS]. Feb. 7, 1962 [Feb. 16, 1961], No. 4631/62. Heading F2U. [Also in Divisions D1 and D2] A roller 1 for use in the pressure treatment of textile or paper webs (see Divisions D1 and D2) comprises a single solid member made of polyamide or superpolyamide material whereby the roller is of such a thickness and the polyamide or superpolyamide is of such a compression strength that under the working pressure acting on the roller the polyamide or superpolyamide will not be permanently deformed. The roller 1 may be produced from a block of nylon by turning. The journals 2 may be integral with the body, as shown, or the body may be bored at its ends to receive journals. A steel core may extend through an axial bore in the body. Driving teeth 3 may be provided.
Patent GB-105106-A (GB)
Title: Process and Apparatus for Liquefying Atmospheric Air and Separating the same into its Constituents, Oxygen and Nitrogen.
Inventor: PLACE JAMES FRANK
IPC: F25J3/04
Filed: 1916-03-29
Abstract: 105,106. Place, J. F. March 29, 1916. Coil-tube apparatus. - In apparatus for liquefying air and, if desired, separating its constituents, oxygen and nitrogen, the liquefying and rectifying chamber 25, Fig. 4, contains two series of coiled tubes 26, 26<1> connected at the top to an inlet header 28, and at the bottom to a header 34 provided with a relief valve, and precooled compressed air tc be liquefied is passed through the coils in heatexchanging relationship to highly cooled air entering the chamber by a pipe 24 and passing through a wire net 59 and a passage 27 formed between the coils. The air entering the chamber 25 at the pipe 24, prior to being cooled by expansion in stages from a high pressure, is precooled by being passed through coiled tubes 17, 17', Fig. 7, brazed to headers 19, 19<1> within a vessel 30 and so disposed as to leave a helical passage 18 between them, through which cold air or nitrogen from the chamber 25 flows back to a compressor. The air to be liquefied is precooled, in a vessel 45, Fig. 8, by nitrous oxide gas supplied to a series of coiled tubes 39 ending in a lower header 42, connected to a central pipe 43. The air to be precooled is led in at the top through a pipe 16 and passes down a conduit 46 formed of insulating fibre, wherein it is cooled by the pipe 43, and thence along the helical passage 48 formed between the coils 39, passing out through a pipe 49 to the header 28 of the liquefying-coils.
Patent GB-102662-A (GB)
Title: Improvements in or relating to Quick-break Electric Coupling Members.
IPC: H01H9/08
Filed: 1916-03-30
Abstract: 102,662. Henley's Telegraph Works Co., W. T., and Judge, E. E. March 30, 1916. Couplings; fusible cut-outs.-A quick-break electric coupling comprises a removable carrier a, such as a fuse-carrier, fitted with a main blade b which is adapted to be inserted between two pairs of contacts p and has on its face a pair of auxiliary blades e pivoted at their inner ends to the main blade and connected therewith at their outer ends by springs d. The main and auxiliary blades are recessed near their ends to accommodate the springs d. As the carrier is pulled away in opening the coupling, the blades e turn about their pivots, but remain in engagement with the contacts until the bevelled ends k of the blades come into contact with the face of the main blade, and then the blades e are positively withdrawn. The main blade may be in two parts each carrying an auxiliary blade and adapted to be inserted between a corresponding pair of fixed contacts, the parts being connected by a fuse wire.
Patent GB-714287-A (GB)
Title: Radiation interruption
Inventor: MUNDAY CHARLES WALTER
IPC: G01N21/37
Filed: 1952-02-22
Abstract: 714,287. Radiation choppers. DISTILLERS CO., Ltd. Jan. 28, 1953 [Feb. 22, 1952], No. 4683/52. Class 40 (3) A radiation chopper comprises a sheet having a pair of straight parallel edges, mounted at a position spaced from an axis of rotation, the edges being parallel to the axis and defining a quadrant of a cylinder the centre of which is the axis of rotation. Fig. 9 shows an arrangement which may be used for chopping alternately the two analysing radiation beams in gas-analysis apparatus of the type described in Specification 683,952. The radiation chopping sheets 43, 44 form quadrants of the surface of cylinders, of which the end walls are defined by plates 40, 41 for the left hand cylinder and plates 41, 42 for right hand cylinder. The upper edge of quadrant 43 is in line with the bottom edge of quadrant 44. The apparatus rotates about axis 50 and a drum 47 carried on the same axis has an aperture 49 which acts to chop an auxiliary radiation beam to provide a reference signal for the purpose of determining the difference between the extremities of the two measuring beams. The central plate is supported by ball bearings in supports 53. End plates 40 may consist of a rim supported by a central spider 57 (Fig. 11) and the quadrant may be defined by a flat plate 60 instead of a curved plate coinciding with the surface of the cylinder. The sheet member may be made reflecting or absorbing depending on the radiation of the wavelength being used. The partition walls should absorb all wavelengths.
Patent GB-177659-A (GB)
Title: Improvements in rudder control mechanism for twin-engined aeroplanes, ships, and thelike
IPC: B64C13/00
Filed: 1921-02-10
Abstract: 177,659. Armstrong Siddeley Motors, Ltd., and Green, F. M. Feb. 10, 1921. Steering automatically. -Aeroplanes, ships, &c. having independent propelling plants on opposite sides of the machine, which also drive control members acting upon a rudder for automatically compensating for any inequality of thrust, are provided with means for limiting the extent of the automatic adjustment to prevent over-correction below a predetermined speed, for example that attainable with only one engine working. The control members may act directly or through a relay, or they may comprise electric generators exciting solenoids &c., or, as shown, twin engines A, A<2> may drive two hydraulic pumps C, C<2> connected to cylinders F acting upon a lever E connected to a rudder D. The pumps may have a certain amount of slip so that they are inoperative at low speeds and are unable to produce more than a certain upper limiting pressure in the cylinders F. By appropriate connections between the cylinders F and the rudder D inequalities of thrust may be compensated for over a desired range of speed, stops being provided for the rudder D to limit the amount of correction to be applied automatically, leaving the pilot to supply the remainder on an independent rudder. A conduit C<5> connects the two pumps and is provided with a stop-cock C<6> controllable by the pilot to render the pumps inoperative at will.
Patent GB-906239-A (GB)
Title: Improvements in or relating to vacuum pumps
Inventor: NEWMAN PHILIP ROBERT
IPC: F04C27/02
Filed: 1960-02-11
Abstract: 906,239. Vacuum pump lubricators. NORTHEY ROTARY COMPRESSORS Ltd. Dec. 9, 1960 [Feb. 11, 1960], No. 4847/60. Class 110 (2). Lubricating oil for a vacuum pump is sucked from an oil tank, up a pipe 1 dipping into the oil, through a filter 2, to the nozzle 4 in a chamber 5, the chamber being provided with a gas-proof observation window 8. The oil collects in the bottom of the chamber 5, and its rate of flow to the pump is regulated by a capillary fitting 6, from which it passes to a low pressure region of the pump. The capillary fitting may be replaced by a porous block or by a plurality of capillary tubes leading to different parts of the casing. Specifications 429,171, 661,749 and 752,437 are referred to.
Patent GB-114214-A (GB)
Title: Improvements in Ring Spinning and Twisting of Flax and other Fibres.
Inventor: GIBSON WILLIAM
IPC: D01H7/52
Filed: 1917-04-04
Abstract: 114,214. Gibson, W. April 4, 1917. Spindle apparatus.-In apparatus for the wet or dry opening &c. of flax or cotton &c., of the kind in which a loose ring f rolls eccentrically under the action of the yarn in an annular groove c<1> in a fixed ring c<4>, Fig. 3, or builder plate c, Figs. 1 and 4, the loose ring and groove are so proportioned that the thread passes to the bobbin without negotiating any confined passage or corners between or on the rings and plate, and catching of the thread in the threading slit c<2> is thus avoided. An anti-ballooning extension h of the plate or fixed ring may be provided. Reference has been directed by the Comptroller to Specifications 14977/96 and 984/10.
Patent GB-576957-A (GB)
Title: Adjusting device for varying the release point of overload release devices
IPC: B64D5/00
Filed: 1944-03-16
Abstract: 576,957. Stress-limiting devices. BLACKBURN AIRCRAFT, Ltd., and THIRSK, W. H. March 16, 1944, No. 4907. [Class 78 (ii)] [Also in Group XXXII] An overload release device of the kind in which the slack in a cable or the like is taken up to operate release mechanisms comprises means on one end of the cable adapted to be retained in one of a plurality of alternative linear positions each corresponding to a predetermined load such that the device may be adjusted at will to release at different known loads. As shown as applied to a towing bar for aircraft, the free end of a cable 12, which is connected to an overload release device on the tractor such as the clutch, &c. is provided with a trunnion 13 having oppositely directed projections 14, 15 adapted to engage in one of a series of holes 6 in a hinged plate 5 and in an opposed registering hole of a series of holes 4 in a plate 1 attached to two side arms of the towing bar. The position of the trunnion 13 in the.holes determines the amount of slack allowed in the cable 12 and thus the load at which the release operates. The registering holes may be provided on the towing bar or the movement of the trunnion may be provided by a screw and nut. The load at which the release operates may be stamped against the corresponding holes in the plate 5.
Patent GB-1027673-A (GB)
Title: Improvements in or relating to electric circuits including electromagnetic relays
Inventor: MUNK HERBERT GEORG
IPC: H03K17/28
Filed: 1962-02-08
Abstract: 1,027,673. Transistor relay circuits. GENERAL ELECTRIC CO. Ltd. Feb. 7, 1963 [Feb. 8, 1962], No. 4913/62. Heading H3T. In a transistor relay circuit the operation and/or the release of a relay upon the connection and/or disconnection of the energizing current of a first winding of the relay is delayed by applying negative feedback to a transistor controlling the energizing current through the first winding by means of a second energizing winding of the relay magnetically coupled to the first winding. With reference to Fig. 1, when the contacts 4 are closed transistor 3 starts to conduct so that collector current flows through winding 1 of relay A such that a voltage is induced in winding 2 of the relay such that the base of transistor 3 is driven positive with respect to its emitter. Thus the build-up of the collector current is retarded so that there is a delay between the closing of contacts 4 and the relay operating determined by resistor 6. On opening the contacts winding 1 is de-energized and relay A released without substantial delay. By connecting the emitter of transistor 3 to a tapping on a potentiometer across the supply so that it is more negative than the base when contacts 4 are opened the voltage induced in winding 2 is such as to retard the decay of the collector current and thus delay the release of the relay A. Alternatively, a Zener diode may be connected between the positive supply and the emitter of transistor 3. If a rectifier is connected across winding 2 so as to nullify voltages induced in that winding on closing the switch contacts then a delay is obtained in the release of the relay but not its operation. In a second embodiment, Fig. 2 (not shown), a second transistor is connected with its emittercollector path across the base-emitter path of a first transistor including a first relay winding in its emitter-collector path and a second relay winding magnetically coupled to the first is connected to the base of the second transistor. The transistors are biased so that when a contact in series with the supply is closed the second transistor is cut off whilst the first transistor conducts. Due to the feedback to the base of the second transistor the latter is driven into conduction and its collector current causes the base voltage of the first transistor to rise and so retard the build up of the collector current in this transistor. When the contacts are opened there is no delay in the release of the relay. In the circuit of Fig. 3 when contacts 63 are closed, both of transistors 45, 54 conduct, transistor 54 being biased to conduct lightly and transistor 45 heavily. The collector current of 45 induces a voltage in winding 42 of such polarity that transistor 54 is rendered more conductive and the resultant drop across resistor 52 reduces the conduction of transistor 45 so that the build up of its collector current is delayed.