baber/WOPTO huggingface dataset:
Patent GB-749569-A (GB)
Title: Improvements in or relating to rotary fluid pumps and motors and the like
IPC: F04C2/20
Filed: 1954-04-15
Abstract: 749,569. Rotary pumps. OVRETVEIT, K. A. March 17, 1955 [April 15, 1954], No. 11122/54. Class 110(2) In a reversible pump a main rotor 3 carries vanes 7 which co-act with slots 21 ... 24 in one or more rotary abutments 12, 13, the latter being provided with by-passes to allow free flow of fluid around the vanes when they pass through the slots. In Fig. 1, the vanes 7 extend axially from the rotor 3 into two annular working chambers 8 and co-act with four rotary abutments 12, 13 to pump fluid from and to main ports 10, 11. Gears 33, 34, 35 couple the main and abutment shafts, the bearings of which, 4, 14, 15 are axially adjustable. Each abutment rotor overlaps the main rotor, recesses 25, 26 being provided to allow the vanes free passage through the slots 21 ... 24 (see Fig. 4), some fluid being forced by the vanes through the by-passes in the hollow abutment rotors to auxiliary outlets 30, which may lead to the main outlets 11. The vanes 7 may be of metal lined with plastic material 7A, Fig. 5 (not shown). To relieve excessive fluid pressure on an end seal 37, passages 50, 51, 54 allow surplus fluid to pass to an external tank. In a second arrangement, Figs. 6, 7, by-pass slots 63, 64 connect with recesses 61, 65, and communicate with the main ports 10, 11. Fig. 9 shows another arrangement in which the hollow abutment rotors have sealing extensions 70, and end clearances 71 for the vanes. Wide running clearances 72 are arranged for the rotors.
Patent GB-454605-A (GB)
Title: Improvements in or relating to lifts
IPC: B66B13/08
Filed: 1935-04-10
Abstract: 454,605. Lifts. HALL, Ltd., J. & E., 10, St. Swithin's Lane, and READ, A, A., 86, Blackheath Hill, Greenwich, both in London. April 10, 1935, No. 11164. [Class 78 (iii)] In an automatic or push-button lift system of the kind having well gate and cage gate switches so connected that the cage cannot be moved unless all these gates are closed, and having also a cage gate of the automatic selfclosing type provided with a latch so positioned with reference to a member which is moved with the gate as to lie in the path of said member and thus to hold open the gate once it has been opened, the latch is adapted to be lifted by means of a solenoid device controlled by contacts operated by the well gates of the installation so that said solenoid is energized only when all the well gates are closed, said solenoid being arranged when energized first to lift said latch, and then release it and when de-energized to permit its armature to move into a position ready to lift and release said latch again upon further energization. The latch 3, Fig. 1, is pivoted at 4 and drops behind a roller 2 on the cage gate 1 when the latter is opened. The latch is lifted through lever mechanism 5 by a solenoid 6, the winding of which is in series with the contacts of all the well gate switches. The plunger 7, Fig. 2, of the solenoid carries a member 8 to which is pivoted at 9a an abutment 9 for engaging the end 10 of the first lever of the mechanism 5. On energization of the solenoid, the latch is lifted, but it returns to its original position when the abutment passes beyond the end 10. When the solenoid is de-energized, the plunger returns to its original position, and the abutment 9 pivots upwardly about 9a against gravity or spring bias and falls behind the end 10 ready for the next operation.
Patent GB-309547-A (GB)
Title: Improvements in or relating to continuous kilns of the hoffman type
IPC: F27D3/00
Filed: 1929-04-11
Abstract: 309,547. Novelli, F. April 12, 1928, [Convention date]. Brick &c. kilns; charging.-In continuous kilns of the Hoffmann type in which the fuel is burnt within the mass of goods to be heated, the goods are stacked so that vertical channels extend below the fuel charging openings and in these channels grids are provided decreasing in mesh from top to bottom so that on supplying fuel charges of successively larger material the first charge passes the upper grids and is caught by the lowermost, the second charge, of larger material, is caught by the next highest, and so on, with the result that on ignition combustion takes place simultaneously at different levels. In a continuous brick kiln the grids are formed by the bricks themselves. 3 being the lowest and 6 the next above, and the vertical channels are formed between pillars 5 of bricks.
Patent GB-117903-A (GB)
Title: Improvements in and relating to Furnaces for the Heat Treatment of Metals.
Inventor: ROGERS HALLEWELL
IPC: C21D9/00
Filed: 1916-08-09
Abstract: 117,903. Rogers, Sir H., and Walter, C. M. Aug. 9, 1916, Retort furnaces for the heat-treatment of metals. A vertical refractory retort tube is provided with a removable closure at the top, means for suspending within it the articles under treatment from or through the closure so as to be clear of the walls, an enclosed extension leading to and dipping into a quenching bath q beneath, and means for supplying, as at s, an inert gas or vapour or a carburizing medium. The retort tube may be heated by a gas burner k tangentially arranged. The suspending means, which may consist of a basket of wire or refractory material, is preferably arranged to admit of rotation or oscillation. The retort tube is seated in a socket b to which the extension is detachably secured. The extension may be water-jacketed. The removable closure is preferably constructed as shown in Fig. 3 with an additional cover-plate c, provided with an opening x for a pyrometer, another z for the suspending means, and an observation window w. The gas used in the retort tube may be used to heat up a regenerator for the incoming gas and air for combustion. In treating high-speed steels a blast of inert gas may be caused to impinge on the work in the cooled extension. An extended upper portion of the retort tube may be provided for preheating. The setting may be provided with a space j j surrounding the combustion space g and filled with antithermic or isolating packing.
Patent GB-129431-A (GB)
Title: Improvements in or relating to Tents.
Inventor: MOODIE BERTHA HELEN
IPC: E04H15/26
Filed: 1918-07-09
Abstract: 129,431. Moodie, B. H. July 9, 1918. Tent poles. - The pole is resiliently telescopic, and may be constructed, as shown in Figs. 1, 2, or 3, in two parts connected bv a sleeve in which is located a spring. A cross-pin or bolt limits the extensibility. The bolt 15, Fig. 3, may be used to clamp the parts in the collapsed position during the erection of the tent. Reference has been directed by the Comptroller to Specifications 9150/01, 16555/08, 19152/10, 110,794, and 113,708.
Patent GB-1496643-A (GB)
Title: Composites of oxidized graphite material and expanded graphite material
IPC: C01B31/00
Filed: 1976-03-19
Abstract: 1496643 Oxidized and expanded graphite composites NIPPON CARBON CO Ltd 19 March 1976 11250/76 Heading C1A A composite graphite material is compression moulded from a mixture of expanded graphite having a "c"-direction dimension 5-400 times that of the original (material) "c"-direction dimension and an oxidized graphite material having a C:O atomic ratio of 2À4:1 to 3À5:1. The composite material has a bulk density of 1À6-2À2 g./c.c., a gasket coefficient (term defined) of 1À7 to 1À9 and a tensile strength of 160 to 250 kg./cm.<SP>2</SP>. In an example, the expanded graphite is prepared by treating natural graphite with H 2 SO 4  and NaNO 3  followed by washing, drying and heating the treated material to 1300‹ C. The oxidized graphite is formed by treating natural graphite with the same oxidizing mixture at below 0‹ C. for 18 hrs., raising the temperature slowly to room temperature, diluting the resulting mass with water and treating the latter with H 2 O 2  and KMnO 4 ; the treated mass is finally washed to neutrality with H 2 O. The oxidized-expanded graphite mix, which contains 1-60% by wt. of the former based on the weight of the oxidized graphite material, may be compression moulded at 80-250 kg./cm.<SP>2</SP>.
Patent GB-584508-A (GB)
Title: Improved means for controlling the gas supply to the burners of gas stoves, gas rings and the like
IPC: F24C3/12
Filed: 1944-06-13
Abstract: 584,508. Gas burner valves. CRISPIN, C. H. June 13, 1944, No. 11321. [Class 135] The supply of gas to a burner is controlled by the weight of the utensil to open a main nozzle when it is placed in position and to allow a pilot nozzle only to supply gas when it is removed. The utensil acts upon a member 24, projecting slightly above the grid 23 of the stove, against a bow spring 43 to actuate, through a linkage 41, 27 a rod 31 to which is connected a slide 34 engaging a main nozzle 17. The nozzle 17 in the open position shown in Fig. 6 allows a full flow of gas from an inner nozzle 16 connected to the supply pipe 12 through the main nozzle orifice 21 into the mixing pipe 13 of the burner 14. In the position shown in Fig.4, the sleeve is moved so that the end 19 of the inner nozzle 16 closes the orifice 21 but allows a small flow of gas to pass to the burner through an orifice 20 in-the end 19.
Patent GB-1129403-A (GB)
Title: Internal combustion engine
IPC: F23D11/34
Filed: 1966-03-15
Abstract: 1,129,403. Burners. SONIC DEVELOPMENT CORP. OF AMERICA. 15 March, 1966 [15 March, 1965; 15 Nov., 1965], No. 11375/66. Heading F4T. [Also in Division F1] In a burner arrangement for a gas-turbine engine a fuel atomizer 10 includes a nozzle 12 with a converging inlet section 16, a cylindrical stabilizing section 18 and a diverging outlet 20 through which a supersonic air stream emerges, liquid fuel being fed into the stream via passages 44 and orifices 26, (28) perpendicular to the direction of flow and a resonator 24 with cavity 22 into which the stream is directed is fixed to the nozzle member. Sonic pressure waves whose magnitude is increased by resonance are developed.
Patent GB-707134-A (GB)
Title: Improvements in or relating to pressure-responsive control devices
Inventor: HATFIELD JOHN EDWARD
IPC: B64D17/38
Filed: 1950-05-08
Abstract: 707,134. Parachutes; submarines. IRVING AIR CHUTE OF GREAT BRITAIN, Ltd. May 8,1951 [May 8, 1950], No. 11407/50. Classes 40 and 113(2) [Also in Group XXI] A pressure responsive control device comprising a movable member adapted to be coupled. to the machine or mechanism to be controlled, governor mechanism associated with said movable member, and a pressure-responsive unit associated with said governor mechanism and serving to permit or prevent operation of said governor mechanism dependent upon prevailing ambient pressure conditions is characterized in that said governor mechanism is adapted to be driven by movement of the said movable member. The embodiment described is concerned with the mechanism for releasing a parachute from a pack, in which a rip cord 7 is attached to a plunger 27 loaded by a compression spring 28, a peripheral groove 29 in the plunger engaging a pawl 31 carried by a lever 32 pivoting about a pin 33. The upper end of the lever 32 carries a pin 35 engaging a pin 36 in the spindle 37 of a toothed sector 38, forming the first element of a time-delay gear train 41, 43, 44, 45, of which the element 45 gears with a further pinion (not shown) driving an eccentric 48 engaging a forked element 49 secured to an oscillating governor disc 50. The time delay mechanism may be prevented from operating by obstructing a pin 53 on the pinion 44 by means of a pin 55 operated by a barometric capsule, Figs. 3 and 4 (not shown), to prevent opening of the parachute above a predetermined height, or by a spring 54 the end of which may be moved into the path of the pin 53. During normal automatic operation the end of the spring 54 is first withdrawn from the path of the pin 53 by the removal of an arming pin by a static or manually operated line, and if the jump is made at a sufficiently low altitude the pin 55 is clear of the pin 53 to allow operation of the gear train, but if made at a great height the train is prevented from operating until the barometric capsule withdraws the stop pin 55 when the pre-determined operating height is reached. Upon freeing of the gear train the spring 28 forces the plunger 27 to the right, thereby moving the pawl 31 upwards and rotating the lever 32 clockwise so that the pin 35 presses against the pin 36 and thus rotates the sector 38 anti-clockwise to set the gear train in motion. At the end of the delay period the pawl 31 moves clear of the plunger 27 and the spring 28 operates the rip cord 7. In an emergency such as in the event of failure of the automatic control mechanism, the cord 7 may be operated by a rip ring on the wearer's harness. An escapement mechanism or an adjustable pendulum may be substituted for the oscillating disc 50 and the pressure sensitive device may be set to operate either above or below an optimum value. Specification 601,829 is referred to. Reference has been directed by the Comptroller to Specification 690,998.
Patent GB-326060-A (GB)
Title: Improvements in show cards and other like display cards
IPC: G09F1/04
Filed: 1929-04-13
Abstract: 326,060. Aspinall, J., and Richmond, C. April 13, 1929. Stands. - A show card &c. consists of a cardboard &c. blank cut to provide a front panel 1 and a substantially U-shaped supporting strut 2 hingedly depending at creased lines 3 from opposite sides of the panel 1. The strut may have wing pieces 4 which abut against the panel when the strut is in use.
Patent GB-1248539-A (GB)
Title: Improved mechanism for laterally trueing a paper sheet feed table
Inventor: JANECEK JAROSLAV
IPC: B65H1/14
Filed: 1969-03-04
Abstract: 1,248,539. Feeding sheets. ADAMOVSKE STROJIRNY NARODNI PODNIK. 4 March, 1969 [5 March, 1968], No. 11435/69. Heading B8R. A pile table 13, vertically movable by means of chains 4 is supported on rollers 11 to permit lateral truing. The rollers 11 are carried on pivotable arms 9 attached through supports 8 to holding members 7 which members are lifted by tooth-shaped elements 5 on chains 4. On reaching an uppermost position the elements 5 disengage the pins 6 on members 7 and allow the members (carrying arms 9) to descend freely in guides 14 where the rollers 11 engage a further feed table 13. Subsequently further elements 5 engage and again lift the members 7. The extent of lateral truing is limited by stops 12.
Patent GB-664088-A (GB)
Title: Improvements in or relating to plain bearings
IPC: F16C33/12
Filed: 1949-04-29
Abstract: 664,088. Making compound bearings. GLACIER METAL CO., Ltd., and BROWN, W. B. D. May 1, 1950 [April 29, 1949], No. 11445/49. Class 83 (ii). [Also in Group XXXIV] A bearing bush comprises a backing 1 of steel and a lining 2 of a composite bearing material having an interland sponge structure ; one constituent of the lining is capable of melting at a lower temperature than the remainder. As described, the lining 2 consists of 70 per cent copper, 28 per cent lead, and 2 per cent tin and is produced by sintering mixed powders of the metals. One or more holes 1a are trepanned through the backing 1, the bush heated to 400‹ C. and spun at 2,500 r.p.m. so that the low melting point substance is expelled at a localised area 2a coincident with the hole(s) 1a, leaving a zone through which oil from an associated reservoir can be metered at a controlled rate. Alternatively the hole(s) 1a are made by punching before the lining 2 is applied, so that the interlaced sponge structure protrudes into them (see Fig. 2). Gas pressure, or suction, may be used to expel the low melting point constituent instead of centrifugal force, in which case the localised areas 2a of porous structure can be made while the material is in the form of a continuous strip.
Patent GB-674544-A (GB)
Title: Improvements in television receivers
Inventor: GRAY RICHARD OWEN
IPC: H04N7/16
Filed: 1950-05-08
Abstract: 674,544. Television receivers. ZENITH RADIO CORPORATION. May 8, 1950, No. 11455/50. Class 40 (iii). A television receiver for use in a system of secret television wherein the television signal radiated to the receiver is coded by varying the time relationship between the picture and linesynchronizing signals in accordance with a key signal which is transmitted to the receiver by a second channel, and comprising means for decoding the received signals by varying the timing of the line-scanning waveform at the receiver in accordance with the key signals, comprises means for generating blanking pulses in synchronism with the scanning waveform to blank the edges of the reproduced picture which would otherwise exhibit an objectionable flicker. The television signals are received upon aerial 1, detected at 2, amplified at 3 and thence applied to cathode-ray tube 6. Synchronizing signals are separated from the received signal by circuit 7, the frame synchronizing signals being applied to frame-scanning generator 8 and the line-synchronizing signals being applied via a circuit 10 to the line-scanning generator 13. Key signals received from the co-operating transmitter are applied via terminals 11 to circuit 12 which controls .a switching operation in the circuit 10 to introduce at appropriate times into the circuit of the line-synchronizing pulses a delay line to compensate for similar delay effects introduced during the coding operation at the transmitter. Owing to the periodic changing of the timing of the linescanning waveform with respect to the received synchronizing and pedestal pulses a flickering effect would be produced, with the apparatus so far described, at the edges of the reproduced picture. To remove this effect, pulses from the line-scanning generator 13 are applied to circuit 15 which comprises phase-shifting and pulseshaping circuits to produce blanking signals, synchronized with the line-scanning waveform and completely encompassing the pedestal pulses associated with the line-synchronizing pulses whether or not the scanning waveform is delayed with respect to the picture signals.
Patent GB-693072-A (GB)
Title: Improvements in furnaces operating with a liquid bath
IPC: C03B5/027
Filed: 1951-05-16
Abstract: 693,072. Making glass. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST. - GOBAIN, CHAUNY, & CIREY. May 16, 1951 [May 16, 1950; May 16, 1950],No. 11489/51. Class 56. [Also in Groups XI and XII] In a glass making furnace of the tank type having vertically disposed stirrers extending through the sole, which stirrers may also be used as electrodes (see Groups XI and XII), the said combined stirrer-electrodes 44, Fig. 5, may be disposed in a refining compartment 41 fed with molten glass from a melting zone 37 over weirs 38 and 39 at the extremities of a barrier 40. The stirrer-electrodes are provided with rectangular heads immersed in the glass approximately at the level of the weirs. A passage 42 leads to a working chamber 43. In a modification, Fig. 6, a small refining cell 45 having entry and exit passages 46 and 47 respectively is provided with three vertical electrodes 48, 49 and 50 connected to the three phases of a three phase A.C. supply, the first two having circular heads 48a and 49a, respectively and the latter a rectangular head 50a. The electrode 50 above may be rotated and its height may be adjusted to vary the heating effect.
Patent GB-453449-A (GB)
Title: Improvements in spring assemblies or surfaces for furniture, motor seating, or the like
IPC: A47C7/28
Filed: 1935-04-15
Abstract: 453,449. Spring upholstery. ELSON & ROBBINS, Ltd., and ROBBINS, E. S., Portland Mills, Bennett Street, Long Eaton, near Nottingham. April 15, 1935, No. 11553. [Class 52 (iv)] A blade-spring assembly in a seat or seat back has one or both ends of each blade formed with a closed loop the underside of which is connected to the frame. The preferred connection employs a removable bar 17 threaded through loops struck out of the blades and through eyes 19 on the frame.
Patent GB-162251-A (GB)
Title: Improvements in or relating to electromagnetic switches or contactors
IPC: H01H33/38
Filed: 1921-04-21
Abstract: 162,251. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Huey, G. W.). April 23, 1920, [Convention date]. Oil switches; electromagnetic switches.-In an oil-break electromagnetically operated switch of the air-break contactor type having the contact arm 31 pivoted on one insulator 20 in the oil tank 3 and co-operating with a fixed contact 37 on another similar insulator, the contact arm is operated by a rectilinearly-moving rod 39 connected to an operating shaft 49 rotated by an electromagnet 44 having a number of coils 45, 46 one of which is cut into circuit bv means of interlock switches actuated by the operating shaft only when the main switch moves towards its closed position. Fig. 1 shows one section only of three adjoining similar sections of a three-phase switch in which the oil tank and the operating, mechanism are mounted above and below a platform 2 supported by pillars 1. The electromagnets with their coils 45, 46 are duplicated at each side of the structure, and each acts on its own armature 47 having a spring rod connection 50, 51 with a crank arm 48 secured on the common operating shaft 49. This shaft carries two cams 69 which, in different angular positions of the shaft, operate two interlock switches 7, 8 one of which 7 is shown with a contact arm pivoted at 67 and having a contact 62 engaging the fixed contact 60. The circuit arrangements are shown in Fig. 3, corresponding to the off position of the contactor in which the switch 7 is held closed while the switch 8 is allowed to open. When the energizing circuit 71, 72 is closed by a hand switch, the coils 45, 46 of electromagnet 5 are energized in series while the coil 46 is highly energized by direct connection across the line. As the contactor moves towards its closed position, the switch 7 is opened and switch 8 closed, whereby coils 45, 46 of electromagnet 6 are connected in series reducing the total flux of this electromagnet which is still adequate, in conjunction with electromagnet 5, to complete the closing movement and maintain the contactor closed.
Patent GB-801138-A (GB)
Title: Improvements in electric current controlling devices utilising the semi-conductor germanium
IPC: H01L21/00
Filed: 1955-04-21
Abstract: A material for use in semiconductor devices (see Group XXXVI) comprises high purity germanium doped with from 1012 to 1014 atoms/cc of iron.  The material is produced by seed crystal withdrawal from a germanium melt containing an appropriate amount of iron, or by diffusion of the iron into a solid body of pure germanium.  Alloys which are used in the formation of electrodes for such semiconductor devices are tin containing half per cent by weight of arsenic and indium containing 10 per cent by weight of arsenic.  Specifications 643,200 and 728,129 [Group XXXVI] are referred to.
Patent GB-1136356-A (GB)
Title: Improvements in or relating to welded rails
Inventor: MEIER HERMANN
IPC: B23K37/00
Filed: 1966-03-16
Abstract: 1,136,356. Welding rails by fusion. ELECTRO-THERMIT G.m.b.H. 16 March, 1966 [6 April, 1965], No. 11578/66. Headings B3R and B3V. [Also in Division C7] In order to improve the strength, particularly the fatigue threshold, of rail welds a residual stress distribution which counteracts the load stress deflexion is obtained either by cooling the rail web more slowly than the head and/or foot subsequent to welding, or by locally reheating the weld in the web region. In the former method the mould material may be removed from the head and foot immediately the metal is solid but allowed to remain on the web until the latter has completely cooled, while in the alternative the web may be reheated by burners or induction heaters but preferably by a pack of exothermic material, the quantity of the latter being selected to provide the desired heat input.