baber/WOPTO huggingface dataset:
Patent GB-531612-A (GB)
Title: Radio apparatus or the like
IPC: H04B1/16
Filed: 1939-05-24
Abstract: 531,612. Wireless receiving circuits. KRAMOLIN, L. L. DE. May 24, 1939, No. 15467. Convention date, May 25, 1938. [Class 40 (v)] A single-span superheterodyne receiver, which is tuned by the cores of coils S1, S2 being partly saturated by a magnet M, has the D.C. supply for the magnet M, the oscillator O and tuning indicator valve A, effectively decoupled from that supplying the rest of the receiver. Preferably separate power units NG1, NG2 are used, but a single power unit with each load connected to half a two-way rectifier can be used. The aerial is coupled to the first valve through a tuned coupling S1 so as to reduce the noise to signal ratio. This coupling has a double hump characteristic as described in Specification 530,615. The intermediate frequency amplifier ZF comprises double valves, Fig. 2 (not shown) in which as regards carrier currents the anode of the first part is connected to the cathode of the second part, and tuned couplings in the cathode leads to give negative feed-back. The automatic volume control acts upon the grids of all but the first valve of the intermediate amplifier. Tuning is effected by varying the current in coil M from a remote controller, as described in Specification 530,616, [Group XXXVI]. Automatic tuning correction is derived from the device AA and is applied to an auxiliary winding on the magnet M. Specifications 449,240, 451,097, [Group XXXVI], 451,098, 455,190, 470,945, 473,384, 481,062, 490,058, 510,862, 510,941, 511,031, [Group XXXV], 513,626 and 517,966, [Group XXXVI], also are referred to.
Patent GB-1471212-A (GB)
Title: Heat exchangers and methods of making heat exchangers
IPC: F28F27/02
Filed: 1974-04-08
Abstract: 1471212 Making heat exchangers GARRETT CORP 8 April 1974 [16 April 1973 (2)] 15503/74 Heading B3A [Also in Division F4] In a counterflow plate heat exchanger 10 having inlet and outlet manifolds integrally combined with a counterflow heat exchange section and comprising a plurality of plates 30 stacked within a housing 14 to define a core 12 of first and second fluid passages alternating with one another, each plate is formed at opposite sides thereof with a series of openings having upstanding flanged collars 36 which when placed in abutting or nested relationship with flanged collars of adjacent plates and brazed together define inlet and outlet manifolds 16, 17 for the first fluid, namely air to be heated. Openings 38 permit flow of air between the manifolds 16, 17 and the first fluid passages in the core. Openings 40 provided between the manifolds 16 and 17 permit flow of second fluid, e.g. hot gas from a turbine, to and from the second fluid passages in the core; second fluid enters the housing 14 through an inlet 22 and after passing through the core 12 leaves through an outlet 23. Each plate 30 is provided with peripheral flange 42 which abuts and is brazed to a similar flange of an adjacent plate of the stack. Fin members 32 and 34 are located in the first and second fluid passages of the core; the fins may be rectangular, triangular, wavy, perforated or lowered, or alternatively pin fins may be used. In an alternative embodiment (Figs. 10-13, not shown) the core is V-shaped and has a single air inlet manifold (60) provided at the centre of one side and a pair of air outlet manifolds (61) at the extremities of the opposite side of the core; diagonally orientated ribs are provided in the flow passages or by the plates (see Fig. 13) for directing the air and hot gas to and from a central counter-flow section (56) of the core.
Patent GB-292345-A (GB)
Title: Improvements in and relating to presses for drawing sheet metal
IPC: B21D24/00
Filed: 1927-06-10
Abstract: 292,345. Rhodes, C. J. June 10, 1927. Cupping.-A press, similar to that described in Specification 252,447, for drawing sheet metal, has the table 8, which carries the pins for supporting the draw-ring 14, connected to the ram 4, carrying the upper die 17, by links 7, 6 whose joint-pins are provided with rollers 7<a> which are adapted to ride on fixed cams 9 during the first part of the stroke, and then to pass within vertical guide grooves 11 when the links 6, 7 are aligned. Stationary stops 12 are fitted to guide the rollers 7<a> to and from the grooves 11. The table 8 may be provided with a rack 30 for actuating an angularly adjustable cam 25 controlling the pins 19 of a second stage draw-ring 18. In a modification, double connecting-links 6, 7<c>, Fig. 4, are employed, the links 6 being adjustably connected to the ram 4 by screw and, nut mechanism 32, 32a and cam formations X being provided in the vertical guide grooves to compensate for lost motion. The lower end of the link 7 may be automatically connected with or disconnected from the table 8, Fig. 5, by rollers 36 passing between curved arms 34 which are pivoted on the table 8 and are controlled by fixed cams 38.
Patent GB-440545-A (GB)
Title: Swash plate mechanism
IPC: F16H23/04
Filed: 1935-05-28
Abstract: 440,545. Swash - plate mechanism. HULSEBOS, W., Laren, Holland. May 28, 1935, 15538. [Class 80 (iii)] Consists in means for taking the thrust of engine pistons on a swash-plate. The. cylinders 1, Fig. 1, are parallel to the crank-shaft 2. The inclined crank 3 carries, by means of collars 5, 6, a swash-plate 4 which has a pressure member 7 co-operating with a similar member 8 supported rotatably relative to frame 10 by a rotatable member 9. The high pressure between members 7, 8 is transmitted to the larger areas between members 8, 9 or 9, 10. With a small inexactitude in the position or form of the conical faces of members 7, 8, the member 8 can rotate slightly so as to result in pure rolling. Member 9, preferably of bronze, can be secured to either member 8 or to the frame 10 or can be dispensed with. In a modification, Fig. 2, the surfaces of pressure members 11, 12 are arcuate in axial section, member 11 being in one with the parts 13, 14 of which 13 is cylindrical and fits the swash-plate, while 14 is spherical and contacts with member 12. The collar 6 may be omitted and the crank formed as shown in dotted lines. Bevel pinions 15, 16 prevent rotation of the swash-plate.
Patent GB-626019-A (GB)
Title: A gear box, more particularly for horticultural and like power-driven vehicles
IPC: F16H3/32
Filed: 1947-06-12
Abstract: 626,019. Change-speed gearing. HUMBERSIDE AGRICULTURAL PRODUCTS CO., Ltd, and ELLIS, E. D. June 12, 1947, No. 15552. [Class 80 (ii)] [Also in Group XXXI] A transmission, for a light agricultural tractor or vehicle of the kind having an engine situated above the driving axle comprises a sliding - wheel change speed gear powering the axle differential 21 through three stages of reduction gearing, the whole forming a superposed arrangement of shafts 2, 8, 15 and 18 in a substantially L-shaped casing 1. The shaft 2, powered directly from the engine clutch 25, has slidably splined thereon third, second and first speed gears 3, 4 and 5 co-acting with gears 9, 10 and 11 on the shaft 8. The gear 5 co-acts also through a reversing idler with a gear 12. From the shaft 8 the drive passes through constant-mesh gear pairs 13, 14 and 16, 17 and a spiral or other bevel pair 19, 20 to the differential 21. A power take-off 27, 28, which may drive a pulley, is mounted in an auxiliary casing 26, and further similar drives may be taken from any or all of the shafts 8, 15 and 18 for powering, directly or through a clutch, mechanism such as a grass cutter. An offset gear lever 7 operates the sliding gears through a selector 6. Specifications 626,018 and (in the Provisional Specification) 582;352 [both in Group XXXI] are referred to.
Patent GB-431231-A (GB)
Title: Improvements relating to tea kettles and like utensils
IPC: A47J27/21
Filed: 1934-05-25
Abstract: 431,231. Kettles &c. EVERTON, Ltd., E. T., and PADMORE, A. T., Rea Street South, Birmingham. May 25, 1934, No. 15579. [Class 66] An auxiliary dome or baffle e, indented centrally at e<1> to provide an annular spacing abutment serving also as a seating for the manipulating knob d, is disposed over the domed lid b, of a kettle &c., the raised upper portion b<2> of which is formed with steam vent apertures b<3>. An internal baffle f may also be provided. The lid fits into an apertured seating a provided with an inturned rim a<2> to indicate the filling level.
Patent GB-676268-A (GB)
Title: Improvements in or relating to a device for continuously transferring travelling articles
IPC: B65G47/51
Filed: 1950-06-22
Abstract: 676,268. Conveyers. BARRY-WEHMILLER MACHINERY CO. June 22, 1950. [June 27, 1949] No. 15599/50. Class 78 (i). A rotary conveyer for transferring bottles or other articles consists of a rotary table, means for deflecting articles onto and off the table at an inlet and outlet-points, respectively. on the pheriphery, and means for deflecting articles near the centre of the table towards the periphery, whereby articles which overrun the outlet owing to congestion continue on the table and are deflected towards the periphery. There may be a plurality of inlets or a plurality of outlets. In the form described there is one inlet fed by a conveyer 17 and two outlets leading to conveyers 18 and 19 respectively ; each of the outlets may be closed by a pivoted baffle 23 or 24. These baffles co-operate with guide rails 22, 25, 26, 27 and 28 which deflect articles from the conveyer 17 onto the table 12 and return them on the table. Each baffle 23 or 24 is pivoted at 43 to a guide rail 30 or 31 and forms one arm of a bell crank, the other arm 44 of which has at its outer end a pin 46 engaging one of three holes 47, 48, 49 in a plate 45. When in hole 49 the outlet is closed. Holes 47 and 48 are for use with large and small articles respectively. Baffle 24 extends further towards the centre of the table 12 than baffle 23 so that the articles overrunning the first outlet enter the second. A cam 33 causes articles to overrun the first outlet when this is full of articles. Articles which overrun the second outlet are deflected towards the periphery by a baffle 36 which is adjustably secured in any desired position around the centre of the table. Preferably baffle 36 directs the articles towards the inlet. The length of baffle 36 is altered by a telescopic portion 39, provided with a slot 40 engaged by a spline 38 on the main part, and locked in place by a bolt and. nut 41, 42, Fig. 8. The conveyers 17, 18, 19 are preferably endless belts in the same plane as the table and a filler piece 54 ensures smooth transfer. The table acts as a reservoir for temporarily receiving excess articles delivered by conveyer 17. It may also be used as a reservoir for articles passing from conveyer 17 to the continuation 50 of one of the conveyer belts 17, through a gate 21 which can be opened by disconnecting one end from the adjacent. guide 22 or 25. In this case the baffles 23 and. 24 are both closed and the excess articles crowding onto the table are eventually returned to conveyer 17 by the baffle 36. The table is driven through a ring gear 57 on its underside.
Patent GB-375962-A (GB)
Title: Improvements in aprons or covers for perambulators and the like
IPC: B62B9/14
Filed: 1931-05-28
Abstract: 375,962. Covers for occupants of seats. DALLY, A. E., 22, Cliff Town Road, Southend-on-Sea. May 28, 1931, No. 15625. [Class 52 (ii).] The front edge of a detachable leg-protecting cover for perambulators is provided with a strengthening strip of metal to prevent the edge from tearing and has apertures to register with turn buttons to secure the cover to the side edges of the perambulator. Reference has been directed by the Comptroller to Specification 207,408, [Class 52 (ii), Furniture for sitting &c. upon].
Patent GB-1068148-A (GB)
Title: Catalysts
Inventor: FOLL GEORGE EDWARD
IPC: C08G59/70
Filed: 1966-04-07
Abstract: Epoxide polymerization catalysts comprise zirconium tetra (benzoylacetonate) and an aluminium teralkyl or an aluminium dialkyl halide.  Propylene oxide is added to a tube containing a catalyst comprising zirconium benzoylacetonate and aluminium triethyl complex. The polymer product was dissolved in benzene and extracted with MeOH and HCl. The product was a tough rubber having an intrinsic viscosity of 3.ALSO:This Specification is an improvement in or modification of p  Specification 1,040,382 in that as a further example of b -diketone chelates of zirconium, for combination with aluminium trialkyl or aluminium dialkyl halide compounds as polymerisation catalysts, use is made of zirconium teltra (benzoylacetonate).
Patent GB-1502345-A (GB)
Title: Method for treating a metal melt
IPC: F27D3/16
Filed: 1975-04-16
Abstract: 1502345 Refining molten metal UDDEHOLMS AB 16 April 1975 [16 April 1974] 15661/75 Heading C7D [Also in Division F4] Molten metal is treated in a vessel, into the lower region of which there opens an induction heated chamber, by blowing in below the surface a stream of gas containing at least 5kg. of solids per m<SP>3</SP>, the direction of the stream being between 15 degrees and 45 degrees below the horizontal. The gas is injected through a tuyere located in the vessel sidewall and directed towards the centre of the region into which the chamber opens from a position diametrically opposite thereto, and the blowing conditions are such that the momentum of the solid material corresponds to an injection of at least 0À03 kg/min/mm<SP>2</SP> of tuyere bore. As illustrated the tiltable vessel 10 is equipped with tuyere 29 and tap hole 22, the metal being heated in channel 26 by induction heater 25.
Patent GB-398784-A (GB)
Title: Improvements in and relating to striker plates, especially for automobile doors
IPC: E05B17/00
Filed: 1933-05-31
Abstract: 398,784. Striking-plates. CHURCH, R. H., (Representative of CHURCH, L. K.), 1303, 44th Avenue, Southwest, Seattle, Washington, U.S.A. May 31, 1933, No. 15697. [Class 44.] A striker-plate, particularly for use with automobile doors or the like, has a ledge 1 provided with balls 2 with which the bolt 81 engages when the door 8 is in the closed position. The balls are held in a retainer 20 which is supported by a spring 3 resting on a shelf 13. The striker plate may be formed of sheet metal bent into the proper shape and the shelf 13 is struck up from the back 40.
Patent GB-203066-A (GB)
Title: Improvements in or relating to the starting of internal combustion engines
IPC: F01L13/08
Filed: 1922-06-06
Abstract: 203,066. Drummond, A. June 6, 1922. Regulating. - Means are provided to hold open an automatic inlet valve on the cylinder to relieve the compression during the first compression stroke only, to facilitate starting. In the form shown, the inlet valve B, normally closed by a spring b, is held open at starting by means of a rod c w h i c h is pressed against the valve-stem by a lever C pivoted at c<1> and held. by engagement of a catch c<3> thereon with a notch d in a lever D. The lever D is dislodged to allow the valve to close after the first compression stroke, by means of a projection e formed on a member E secured to the half-speed shaft or other rotating member. The member E may be replaced by a reciprocating member.
Patent GB-754356-A (GB)
Title: Improvements in or relating to degeneratively back-coupled transistor amplifiers
IPC: H03F1/34
Filed: 1954-05-28
Abstract: 754,356. Transistor amplifiers. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 28, 1954 [June 1, 1953], No. 15827/54. Class 40 (6). In a negative feedback cascaded amplifier employing an odd number of transistors with D.C. connection 7, 8 between each collector and the base of the succeeding transistor, the emitter circuit of the last transistor 3 includes an impedance 9, 10, 11 to. which the emitters of the earlier transistors 1, 2 are connected. The current flowing in the resistor 11, which is common to the emitter circuits of the first and last transistors is substantially equal to the collector current of the last transistor which is thereby linearized. The connection to the emitter of transistor 2 provides positive feedback. A common control 20 varies the value of resistor 11 and hence the feedback and also the tapping on potentiometer 21 which determines the bias potential on the base of transistor 1. A small capacitor 14 may be employed to provide phase correction and the impedances 9, 10, 11 may be shunted to give frequency-variable feedback. The circuits 7, 8 may include impedances capable of passing D.C.
Patent GB-857281-A (GB)
Title: A fuse member and the method of making same
IPC: H01H85/055
Filed: 1959-05-08
Abstract: 857,281. Fuzes. SIGMUND COHN CORPORATION. May 8, 1959 [May 15, 1958], No. 15852/59. Class 9(1). [Also in Group XXXVI] A detonator fuze comprises 80 - 20 parts by volume of a first material in intimate contact with 20 - 80 parts by volume of a second material, the first material containing at least 95% by weight of palladium or platinum and the second material containing at least 95% by weight of aluminium or magnesium. To make the fuze, one metal may be used as the coreband covered with a sheath 7 of the other metal before drawing to reduce the diameter. The composite unit is heated to about 700‹ F. between the drawing stages. Other metals may be included to facilitate drawing &c. For example a sheath of palladium may contain 2% of ruthenium and the core may be aluminium containing 1% to 5% of magnesium. The metals may also be combined in an elongated strip, the layers being welded or soldered together or one metal may be deposited on the other by an electro-plating technique. The composite wire may be used in an electric circuit or as a thermal fuze.
Patent GB-423854-A (GB)
Title: Improvements in or relating to television and like systems
IPC: H04N3/08
Filed: 1933-06-01
Abstract: 423,854. Television. BAIRD, J. L., and BAIRD TELEVISION, Ltd., 58, Victoria Street, London. June 1, 1933, Nos. 15880/33 and 16317 /34. Divided out of 418,759. [Class 40 (iii)] In a television system in which the scanning- apparatus employs two moving members, one of the members comprises a plurality of series of optical elements of which each series is adapted to produce interdigitation of the sets of lines traversed by light-beams dealt with by the elements of the other scanning member. In the arrangement shown in Fig. 1, the mirrors 6 of a relatively slow mirror wheel 3 are arranged in pairs so that the scanning lines on the screen 4 during successive revolutions of the faster wheel 2 are interdigitated by successive mirrors 6. In an alternative arrangement, Fig. 2, the beam reflected from the faster wheel 10 passes across adjacent mirrors of the mirror drums 12, 13, 14 which are mounted so that three separated scanning lines are formed on the screen 4. The minor wheel 10 may be rotated at the slower rate and the mirrors of the drums 12, 13, 14 are arranged so that each drum scans the screen 4 in a vertical direction with a space of two lines between successive lines and the scans of each drum relatively displaced by the width of one line. One or more of the rotating members may be a lensed disc in which the lenses are arranged on a circle but are not equally spaced about the circumference of that circle. According to the first Provisional Specification, suitable filters may be attached to successive elements of the slowly moving member to effect scanning for reproduction in colour.
Patent GB-153047-A (GB)
Title: Improvements in and relating to the manufacture of moulded articles from acid-proof cement
IPC: C04B28/26
Filed: 1919-06-24
Abstract: 153,047. Richards, W. E. Windsor-. June 24, 1919. Plastic compositions containing fibres, clay, soluble silicates, &c.-A mixture of sand or powdered glass or quartz and clay with a solution of sodium silicate is used for making acid-proof vessels. The mixture, with or without the addition of asbestos fibres, is pressed into moulds. The resulting articles are impregnated with a bituminous liquid, as described in Specification 3364/15, [Class 69 (i), Hydraulic apparatus &c.], or otherwise.
Patent GB-529989-A (GB)
Title: Improvements in or relating to adjustable and detachable buttons
IPC: A44B1/30
Filed: 1939-05-31
Abstract: 529,989. Buttons. LANCASTER, G. W. May 21, 1939, No. 15987. [Class 43] A button comprises a head 1 carrying an internally screwthreaded socket 3 rigidly secured to a head plate 2 thereof by riveting, moulding &c. into which may be engaged a sharppointed end of a screw shank 5a carried by a shank plate 5 with a friction surface, a shank cap 7 being loosely swaged around the plate 5, so that by pressing the cap 7 against the plate 5 the shank may be rotated to engage and disengage it from the head 1. As shown, a flat circular washer 6 with sharp spurs 6a may be provided on the shank 5a to engage recesses 3b in a socket plate 3a integral with the socket 3 to prevent rotation of the head 1 with respect to the cloth. Alternatively, projections may be provided on the socket plate 3a to engage the cloth and to seat in an annular groove in the undersurface of the shank plate 5.
Patent GB-1164419-A (GB)
Title: Improvements in and relating to Electro-Hydraulic Control devices for Overriding the Controls at the Main Driving Position in Motor Vehicles, having Automatic Gear Shifting Mechanism, from a Second Driving Position
IPC: B62D1/22
Filed: 1968-04-03
Abstract: 1,164,419. Controlling motor vehicles. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 3 April, 1968 [5 April, 1967], No. 15990/68. Heading B7H. In an electro-hydraulic control system for overriding the controls at the main driving position in a military or construction vehicle having automatic change-speed gearing by indirectly actuating the main control members from a second driving position, the accelerator pedal 20, brake pedal 30 and steering wheel 40 at the main driving position are each connected to the piston of a respective double-acting hydraulic cylinder 21, 31, 41 one or both chambers of which is selectively connected according to the position of a control lever 79 at the second driving position either with the pressure supply line 16 or the return line 17 of a common oil pressure supply circuit comprising a motordriven pump 11, an oil reservoir 13, an oil filter 14, a pressure relief valve 15 and an hydraulic accumulator 19. Electromagnetic valves 26, 27, 36, 37, 46, 47 connect the chambers of each cylinder 21, 31, 41 to the supply and return lines 16, 17 depending on actuation of switches 71, 72, 73, 74, 75, 76, 77 by the control lever 79. A switch 78 on the lever 79 is depressed to energize the pump motor 12 and the lever is displaceable rearwardly to actuate the switches 73, 74 associated with the brake pedal cylinder 31, forwardly to actuate the switches 71, 72 associated with the accelerator pedal cylinder 21 and transversely in either direction to actuate the switches 75, 76, 77 associated with the steering wheel cylinder 41. The switches are arranged such that when the lever 79 occupies a central neutral position both chambers of the cylinder 41 are connected to the return line 17 so that the steering wheel 40 is freely actuable by the driver at the main driving position and one chamber of each cylinder is connected to the supply line 16 so that the brake and accelerator pedals 20, 30 can be depressed against a restoring force exerted by the fluid pressure. When the lever 79 is moved in any direction it first reaches a blocking position in which it is releasably held by resilient latch means 89, 90, 99, 100 and wherein both chambers of the cylinder associated with the control member influenced by movement in that direction are pressurized to prevent movement of that control member by the driver at the main driving position. Further movement of the lever 79 for venting one chamber of the cylinder to adjust the position of the control member must be made against spring loading 81, 82, 83, 84 tending to restore the lever to the blocking position. The lever 79 can be moved simultaneously in both planes for simultaneous blocking or control of steering and acceleration or braking, but in endless-track vehicles steered by differential driving brake control is permitted only in the straight-ahead position to avoid overloading the transmission.