baber/WOPTO huggingface dataset:
Patent GB-1010909-A (GB)
Title: Mining and conveying equipment for short wall working, especially in coal mines, and method of mining
IPC: E21C35/16
Filed: 1962-07-31
Abstract: 1,010,909. Endless conveyers. A. OELLRICH, [trading as MASCHINENFABRIK UND EISENGIESSERIE A. BEIEN]. July 31, 1962 [July 31, 1961 (2) ; Aug. 5, 1961], No. 29319/62. Heading B8A. [Also in Division E1] In a short wall mining installation in which mining tools 5 are caused to circulate or reciprocate by a closed loop haulage means 4 moving in a vertical plane, the guide means 24 for the tools and the haulage means are mounted on floor-supported sections 1 that are so coupled together that the sections are substantially rigid when under forces acting towards at right-angles to a mine face, but can flex to a limited extent when subjected to force in the opposite or in a vertical direction. The lower part of each section comprises a hollow rectangular box that at the rear is coupled to adjacent sections by bolts 15 and forked interlocking members 16. Attached to the front of each section is the trough unit of a scraper conveyer 2, and to the front of the troughing is secured a length of guide rail 24 along which the lower run of mining tools 5 are guided. Extending up from each section are tubular supports 20, 21 for beams 22 supporting lengths of guide rail 24 for the upper run of mining tools. Some of the supports are axially adjustable to allow of adjustment of the upper run of the mining tools. An additional pick-carrying endless chain may be mounted on the forward supports vertically mid-way between the upper and lower runs of the tools 5. On the haulage means of the mining tools being excessively loaded contraction of a telescopic section of the conveyer trough occurs and this movement actuates levers 72 (not shown) to operate control means 70 (not shown) of the drive motor of the mining toolcarrying haulage means to regulate the speed of the motor.
Patent GB-1249697-A (GB)
Title: Olefin oligomerisation catalysts
Inventor: LOWTHER EDWIN DANIEL
IPC: C07C2/24
Filed: 1969-06-10
Abstract: 1,249,697. Oligomerisation catalysts. B.P. CHEMICALS Ltd. 29 April, 1970 [10 June, 1969], No. 29360/69. Heading B1E. [Also in Division C5] K, Rb or Cs metals are supported on anhydrous Li 2 CO 3  to give oligomerisation catalysts. The molten metal may be dispersed on the heated carbonate or a liquid alloy such as Na/K may be dispersed on the carbonate. In another method the metal may be dissolved in liquid NH 3 , the solution dispersed on the carbonate and the NH 3  evaporated. The catalyst may be treated with H 2  before use. Examples describe the dispersion of a liquid K/Na alloy, or of molten K on Li 2 CO 3 .
Patent GB-427891-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B60K5/12
Filed: 1933-10-24
Abstract: 427,891. Motor vehicle frames; mounting engines &c. TATRA-WERKE AUTOMOBIL-UND WAGGONBAU AKT.- GES., 200, Kartouzska, Smichov, Prague. Oct. 24, 1933, No. 29465. Convention d a t e, Dec. 17, 1932. [Classes 79 (iii) and 79 (iv)] An engine and/or transmission unit is carried in a forked extension 3 of a central longitudinal chassis frame member 2 with three points of resilient support, one at the end of each forkarm and the third at the junction. The unit 1 comprising engine, gear-box, and final drive to swinging half axles, is supported by a transverse tubular bearer 6 with closed ends 7 mounted in rubber lined split bearings 4 in the fork-arms, in conjunction with an arm or extension 8 engaging a rubber insert 9 in the end of the tube 2 or which may surround the tube with a rubber sleeve interposed or have engagement above or below the tube. The invention may be applied to the mounting of the combined unit at either end of a vehicle or of an engine unit at one end and a final drive gear at the other end with the propeller shaft passing through the tube 2.
Patent GB-171873-A (GB)
Title: Improvements in and relating to machines for use in the manufacture of boots and shoes
IPC: A43D49/00
Filed: 1920-10-19
Abstract: 171,873. Standard Rotary Machine Co., Ltd., and Picken, A. M. Oct. 19, 1920. Addition, to 152,778. Channel-opening; trimming.-In the combined upper-trimming and channel-opening machine described in the parent Specification, one of the pair of overlapping disc cutters is provided with sharp teeth around its edge. These teeth support the work and feed it forward.
Patent GB-874693-A (GB)
Title: Improvements in and relating to plug button assemblies
IPC: G05G1/12
Filed: 1959-08-28
Abstract: 874,693. Stud-and-socket fastenings; clips. UNITED-CARR FASTENER CORPORATION. Aug. 28, 1959 [Sept. 29, 1958], No. 29519/59. Class 44. A plug button assembly for closing a cavity 4 in an article 1 comprises a retainer device 6 adapted to be secured in the cavity and a plug button 5 insertable into the cavity, the retainer device including 6 resilient fingers engageable with the plug button. As shown, in which the article 1 is an operating handle attached to a valve stem 2, by a screw 3, the screw also secures the device 6 the resilient fingers 9 of which engage a slotted tubular projection 8 on the plug button 5. The button may be made of coloured synthetic plastic material.
Patent GB-896931-A (GB)
Title: Improvements in or connected with load indicating mechanism
Inventor: LETHBRIDGE ERNEST
IPC: G01G3/02
Filed: 1958-09-16
Abstract: 896,931. Load indicating mechanisms. AVERY Ltd., W. & T. Aug. 24, 1959 [Sept. 16, 1958], No. 29570/58. Class 143. A load indicating mechanism for a weighing apparatus or physical testing machine comprises a cranked lever 6 which is fulcrumed in bearings 5 on a frame 1 by means of a spindle 4 carried by the horizontal arm 6a of the lever 6 near the angle of the lever, a load transmitting rod 9 coupled to the lever at the angle thereof through a knife edge bearing 10, a load resistant spring 8 coupled to the free end of the horizontal arm 6a through a knife-edge bearing 7, and a rack 16, engaging a pinion on a pointer spindle 18, pivotally connected to the free end of the downwardly directed arm 6b of the cranked lever 6 so as to be further from the fulcrum pin 4 than the load bearing 10 and thereby provide a magnified movement of the pointer. As shown the spring 8 is anchored one arm 26a of a bell-crank 26 which is pivotally secured to the frame and has its other arm bearing against an adjustable stop 27 operable by a knob 29 to effect zeroing of the pointer. The rack 16 is connected by a C-spring 15 to a housing 13 which is pivotally mounted on the end of a screw-threaded rod 11 extending from the free end of the lever arm 6b to be adjustable in the direction of length thereof, an adjustable counterweight 21 being provided on the housing 13 and the rack 15 being supported in engagement with its pinion by a roller.
Patent GB-1276459-A (GB)
Title: Improvements in or relating to ingot production by electroslag remelting of consumable electrodes
Inventor: MEDOVAR BORIS IZRAILEVICH
IPC: C22B9/18
Filed: 1970-06-18
Abstract: 1276459 Casting processes INSTITUT ELEKTROSVARKI IMENI E O PATONA AKADEMII NAUK UKRAINSKOI SSR 18 June 1970 29583/70 Heading B3F [Also in Division H5] Ingots 7 are produced by electroslag melting two groups of consumable electrodes 2, 3 dipping into a slag layer 6 in a cooled mould 1 and connected in series to the secondary winding 4 of a single phase transformer, each of the groups comprising a main electrode 2 stationary with respect to the mould 1 connected in parallel with an auxiliary electrode 3 movable with respect to the mould 1 to regulate the total current supplied and the degree of immersion of the stationary electrodes 2 in the slag 6. Solid flux added during the melting increases the depth of slag 6 and permits replacement of the movable electrodes 3 without interrupting the melting process. The mould 1 is long and narrow permitting production of slab ingots intended for direct sheet rolling. The melting process may be stabilized by electrically connecting the centre point O of the transformer to the slab ingot 7.
Patent GB-1511661-A (GB)
Title: Packaged utensil units and method of making same
IPC: A23L27/00
Filed: 1975-07-15
Abstract: 1511661 Spoons L S HOFFMAN and R B McCLOSKY 15 July 1975 [15 July 1974] 29628/75 Heading A4A [Also in Division B8] A packaged utensil unit comprises a flat utensil 12 having thereon a substance dissolvable in a fluid, a flat rigidifying member of the same thickness as the utensil and bonding the marginal edges thereof 14, and a flexible sheet 40 attached to the rigidifying member and covering the substance. The substance may comprise a sweetener in one or two spaced areas, spaced areas of a sweetener and a lemon flavouring instant food or beverages, drugs, medicines, or a fertilizer. The unit may be formed by cutting along a sinusoidal line 56 a cardboard, paper, plastics, or a laminated sheet into a utensil segment 60 and a rigidifying segment 62, coating the utensil segment with the substance, sealing a flexible sheet to both sides of the rigidifying segment 62, and severing the segments into separate units. Saccharin may be applied by dusting it on to the utensils coated with starch, or by mixing it with starch which is then printed on to the utensil. The utensil segment or a sheet 40 may be printed. The utensil may be secured to the packaging by either a spot bond (46) with a sheet 40 or by a tab connection (48) with the rigidifying member.
Patent GB-535233-A (GB)
Title: Improvements in or relating to fittings for electric lamps
IPC: F21V19/00
Filed: 1939-11-08
Abstract: 535,233. Electric lamp fittings. WARDLE ENGINEERING CO.. Ltd., and OGLEY, D. H. Nov. 8, 1939, No. 29631. [Classes 75 (iii) and 75 (iv)] In an electric lamp fitting of the kind in which the lampholder 9 and shade, globe, or reflector 10 are mounted on the upper and lower sides respectively of a member 8 so secured to a cap 7 on a pendant or other support as to allow a slight displacement without detaching the lamp-holder or shade, the lamp-holder 9 is secured by bolts 12 to the underside of a plate 11 having a central opening 11a for the passage of the leads and formed with hook-shaped ends 11b or keyhole slots engaging under the heads of clamping screws 15 mounted in bosses 14 on the members 8. Alternatively the holder 9 may be secured to a plate supported between shock-absorbing springs on guide rods depending from the plate 11. The member 8 consists of a ring secured to the cap 7 in the manner described in Specification 249,343, [Class 75 (iii)].
Patent GB-1523404-A (GB)
Title: Apparatus for mixing two flowable substances
IPC: B03D3/06
Filed: 1977-07-15
Abstract: 1523404 Mixing apparatus COAL INDUSTRY (PATENTS) Ltd 15 July 1977 [16 July 1976] 29680/76 Heading BIC A first flamable substance overflows from a first container down an inclined face on to which a second flowable substance overflows from a second container, the substances mixing on the inclined face. In the apparatus shown the first substance (e.g. effluent containing fumes from a coal preparation plant) overflows from the first container 1 down the inner face of an inverted cone 6, on to which the second substance (e.g. water containing a flocculant) overflows from a second container 20, the mixture being discharged at 15 to a settling tank (not depicted). The container 1 has a tangential inlet 5, and perforated plates 8, 9 and baffles 11 discourage rotation of the liquids. Supply to container 20 may be controlled by a metering valve.
Patent GB-190858-A (GB)
Title: Improvements in saddles for use on cycles or motor cycles
IPC: B62J1/02
Filed: 1921-11-08
Abstract: 190,858. Middlemores (Coventry), Ltd., and Lattre, W. A. de. Nov. 8, 1921. Saddles. - In a saddle for cycles or motorcycles, the vertical movement of a corner of the saddle, such as the peak, is controlled by a link C, which is pivoted at one end, as shown at B<4>, to the supporting-frame B, and at C<3> to the seat proper A, and is acted upon at its free end C<4> by a leaf spring D secured to the seat. The free end C<4> bears against the upper surface of the end of the spring D and also against the under side of a strip A<2> attached to the underside of the seat, a stop being thus formed to limit the upward recoil of the saddle. The link C comprises a pair of parallel arms and is bent from a, single plate in such a way as to provide a bridge-piece C<5> at the free end to bear against the spring D and the strip A<2>. The rear corners of the saddle may be supported by similar links, or by means of struts E and tension springs F in known manner.
Patent GB-629580-A (GB)
Title: Improvements in or relating to belt fasteners
IPC: F16G3/04
Filed: 1947-11-07
Abstract: 629,580. Belt fastenings. I. M .T., Ltd., and EMMERTON, J. T. Nov. 7, 1947, No. 29743. [Class 80 (i)] In a belt fastening of the wire hook type having one arm b larger than the other arm a, at least one of the bent-over hook points c is deflected out of the plane of the hook body. The portions c are preferably in the shape of an involute curve described about the pivot rod d. Specification 459,411 is referred to.
Patent GB-715611-A (GB)
Title: Improvements in extended surface heat exchanger and method of making the same
IPC: F28F1/12
Filed: 1950-12-05
Abstract: 715,611. Tubular heat-exchange elements. DALIN, D. Dec. 5, 1950 [Oct. 24, 1950], No. 29762/50. Class 64(3) An extended surface for heat-exchangers comprises a base wall 5 of metal having high tensile strength and one or more annealed bimetallic elements 6 joined to and extending from the base wall, each element consisting of a core and a sheath of which one is metal having substantially the same coefficient of expansion as the base wall. The annealing of each element is such as to provide a tension equalizing zone between the sheath and core, to render possible heat expansion and contraction of the core without rupturing the sheath. In Fig. 1 the core 9 of each of the elements secured to the tubular member 5 is of copper or aluminium and the sheath is of mild steel. The sheath is applied to the core in any known way and the element is then subjected to an annealing process; this process avoids bursting of the sheath in service. The bond between the core and sheath may be increased by inserting a thin layer of metal having suitable flexibility between them. The elements are applied to the base wall radially, are then welded to the base wall, and are then bent to their final positions as shown in full lines. In a modification, the elements are applied tangentically to the base walls, and in another modification, Fig. 8, the mild steel core 9 is encased in a copper sheath 10. In Fig. 9 the whole of the exposed surfaces of the elements and base wall are covered by a layer of vitreous material. Fig. 12 shows .a further construction in which water tubes 5<SP>1</SP> of a boiler have fins 6' each having a copper core and a sheath of steel. Specification 569,390 is referred to.
Patent GB-746391-A (GB)
Title: Improvements relating to cradles and the like
Inventor: FINNIMORE JACK RONALD
IPC: A47D7/04
Filed: 1953-10-28
Abstract: 746,391. Cots. BRITISH OVERSEAS AIRWAYS CORPORATION. Dec. 21, 1954 [Oct. 28, 1953], No. 29807/53. Class 52(2). A child's cot or cradle comprises a bottom and side walls detachably connected to rigid end walls 1 each of which has a clamp 3, 4 to be applied to the edge of an aircraft &c. luggage rack or shelf. The clamps are not disposed on the longitudinal axis of the cot so that most of the latter projects from the rack and the inner edge of the cot bears on the underside of the rack to prevent tipping. The clamp is held in gripping position by a screw 12. The bottom and side walls consists of a flexible sheet 15 secured to end walls 1 by releasable fastenings 21 and having edge sleeves through which pass rods detachably connected to the end walls by spigots and sockets. An extension 22 of the front wall can be detachably secured to the end walls by fasteners 23 and to an occupantretaining band 25 by fasteners 26.
Patent GB-533679-A (GB)
Title: Improvements in electrical relays
IPC: H01H47/26
Filed: 1939-11-13
Abstract: 533,679. Electromagnetic relays. RYDER, C.. and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 13, 1939, No. 29983. [Class 38 (v)] A relay responsive to change of resistance in a circuit 4. 5, produced for example by overheating of the windings of a motor or dynamo but which is unoperated by considerable variation of voltage or current in said circuit unaccompanied by such heating, is of the moving-coil type and has two coils arranged on the moving element one being a 'series' coil 1 arranged across a portion 3 of the circuit 4 and the other a "voltage" coil 2 arranged across the lines 4, 5, the coils being arranged in opposition and one of them having in series with it a non-linear resistance such as a metal filament lamp 7. The moving coil element has a spring or other bias, and the relay operates when the torque due to the coil 2 overcomes the torque due to the coil 1 plus that due to the bias. For each particular resistance of the circuit 4 there will be a corresponding relation between the current in the coil 1 and the voltage across 4, 5, this relationship being expressed on a graph by a straight line, and the lines corresponding to the different resistances will have different slopes. The torques due to the coil 1 will be represented by similar lines with similar slopes, since the torques are proportional to the currents. The relationship between the current in the coil 2 and the voltage 4, 5 will not be a straight line but a curve owing to the presence of the non- linear resistance 7 with its positive temperature co-efficient, and the same applies to the torques curve due to the coil 2. The arrangement according to the invention is that in the neighbourhood of the voltage at which the relay is intended to operate. the torque curve due to the coil 2 should be approximately parallel to the torque line due to the coil 1 corresponding to the particular resistance at which the relay should operate. Thus, if at any voltage the torque due to the coil 2 is just sufficient to overcome the torque to the coil 1 together with the bias, it will be just sufficient for other voltages in the neighbourhood. A choke 8 is preferably inserted in the circuit as shown. It has a time constant matching that of the circuit 4 and so prevents inadvertent operation of the relay when the circuit is first coupled to a D.C. supply.
Patent GB-1219072-A (GB)
Title: Pulsed doppler radar system
IPC: G01S7/288
Filed: 1958-09-18
Abstract: 1,219,072. Pulse radar. CANADIAN ARSENALS Ltd. 18 Sept., 1958 [24 Sept., 1957] No. 29990/58. Heading H4D. A pulsed Doppler system has a duty ratio of 0À05-0À5 and uses a " comb " filter to reject returns from fixed targets. Various methods of obtaining coherence between transmitted pulses and reference oscillations are described. The filter has a number of stop bands at multiples of the P.R.F. with an attenuation of at least 50 db obtained by the use of high Q ferrite core inductances. Fig. 4 shows the transmitter and local oscillator both locked to the IF reference frequency. The transmitter frequency and local oscillator frequency are arranged to differ by the IF, so that mixing the local oscillator and reflected pulses gives IF pulses which are compared with the IF reference frequency at 12. The output of the phase detector 12 passes to the filter 13 which rejects fixed target returns. Fig. 5 shows a system using a duty ratio about 0À5. Part of each transmitted pulse is fed to a mixer 24 to form an IF pulse which is delayed and compared directly with the reflected pulse. The P.R.F. is adjusted so that the leading edge of any reflected pulse is at the antenna before the transmitted pulse ends, so that the lengths of the IF pulses are proportional to the ranges of the reflecting objects. The system in Fig. 6 uses stable RF and IF continuous wave sources. CW RF is mixed with gated IF, the difference product filtered out, and the pulses transmitted. Return pulses are mixed with the RF and the resulting IF pulses are compared with oscillations from the stable IF source and filtered as above.
Patent GB-1516106-A (GB)
Title: Pump for liquids
IPC: F04B43/04
Filed: 1975-07-17
Abstract: 1516106 Reciprocating pumps WALBRO CORP 17 July 1975 [4 June 1974] 29997/75 Heading F1A A solenoid-operated diaphragm, fuel pump has a valve 64 which closes communication between the pumping chamber 16 and the outlet valve 30 when the pump is inoperative, thereby preventing flow from inlet 20 to outlet 32. Valve 64 is biased open by spring 72 and closed by diaphragm 14 when moved to its upper position by spring 38 on de-energization of solenoid coil 42. The pump stroke is set by an adjustable stop 58 engageable with armature 36. The pump inlet has a filter 22. Inlet valve member 78 has a bleed passage 76 to relieve high pressure surges in pumping chamber 16. The pump components are secured in casing 12 by tabs 52, a spring washer 54 biasing the diaphragm-clamping components into sealing engagement.
Patent GB-262135-A (GB)
IPC: F02M19/035
Filed: 1926-11-27
Abstract: 262,135. Portail, F. C. F. Nov. 28, 1925, [Convention date]. Spray carburettors.-Atomizing of the fuel and mixing it with air are facilitated by injecting the fuel from the nozzle e into a tubular body a having ogival inner end surfaces and enclosing a helical member b which engages the body frictionally and is formed on a member c with rounded ends. Air to break up the fuel enters by the flared opening d at the lower end of the body a, and the main air enters through the annular passage h between the body a and the usual diffuser g. The fuel and air mixture issues from the orifice f in the form of a rotating conical sheet which is at all points met by the main air stream. The vertical angle of the cone should approach 180‹ as nearly as possible. In a modification, the nozzle is of the submerged type and the initial air is supplied to it through a tube which, at its upper end, is open to the atmosphere above the normal fuel level and at times is filled with fuel.
Patent GB-1319851-A (GB)
Title: Colour electrophotographic process
IPC: G03G9/12
Filed: 1970-06-22
Abstract: 1319851 Multi-colour electro-photography RANK XEROX Ltd 22 June 1970 [ 20 June 1969] 30096/70 Heading G2H Electrostatic latent images are successively formed and developed on a photo-conductor to form a multi-colour image; the first latent image being developed with a yellow composition comprising a suspension of photo-conductive cadmium sulphide particles in an insulating liquid. The photo-conductivity of this composition improves the quality of the other latent images formed. Preferably the other developers are also photo-conductive and may include zinc oxide for this purpose. The developers may include sensitizers which are removed after development by rinsing with oxalic acid. The cadmium sulphide may be mixed with benzidine yellow, chrome yellow, hansa yellow or zinc sulphide.