baber/WOPTO huggingface dataset:
Patent GB-1243468-A (GB)
Title: An absorption refrigerating system
Inventor: WADA MASAJI
IPC: F25B15/06
Filed: 1969-01-27
Abstract: 1,243,468. Refrigerating. M. WADA. 27 Jan., 1969 [26 Jan., 1968; 29 Jan., 1968], No. 4435/69. Heading F4H. A single or double effect absorption refrigeration system includes a heat exchanger which is used for heating water and is supplied with refrigerant vapour and/or liquid. The refrigerant may be returned to the generator or to the condenser. As shown in Fig. 5, the system comprises a first-effect generator C<SP>1</SP> connected by line 130 to a separator 104, a second-effect generator D<SP>1</SP>, a condenser E<SP>1</SP>, an evaporator A<SP>1</SP> and absorber B<SP>1</SP>. Solution from separator 104 passes through line 132 and heat exchanger 103 to generator D<SP>1</SP> where it is heated by a coil 113 supplied with refrigerant vapour from separator 104. The refrigerant from coil 113 passes through line 137 to a valve 106 which supplies it either directly to the condenser via line 108 or through line 107 to a coil 112 in a vessel 105 where it heats water for a draw-off supply. From coil 112 the refrigerant passes to the condenser via line 107<SP>1</SP> and restrictor 138. Valve 106 is controlled by a thermostat 111 in vessel 105. The above system may be modified in that all of the refrigerant from coil 113 passes through coil 112, the flow being thermostatically controlled by a valve which cannot be fully closed (Fig. 6, not shown); the single threeway valve 106 is replaced by two two-way valves (Fig. 7, not shown); and the coil 112 is placed in a counterflow heat exchanger outside the vessel 105 (Fig. 8, not shown). Part of the refrigerant vapour may be supplied directly to the water heating coil (Figs. 9 to 11, not shown); the hot-water vessel is provided with supplementary heating means in the embodiments of Figs. 9 and 11. As shown in Fig. 5, the system includes a first-effect generator C, a separator 4, secondeffect generator D, condenser E, absorber B and evaporator A. Refrigerant vapour is supplied through line 6 to a water heating coil 8, refrigerant being returned from coil 8 to generator C under the control of valve 10, and through line 5 to the heating coil 34 of generator D. Refrigerant from coil 34 passes through a water-heating coil 35 and throttle 36 to the condenser. The system may be used for room heating as well as water heating by opening a valve 20 to admit a mixture of solution and refrigerant vapour to the absorber, cooling of which is discontinued. The refrigerant vapour passes to the evaporator and condenses upon coil 28 which heating the medium flowing therethrough. The condensate overflows into the absorber to dilute the solution therein and the weak solution is returned to generator C by pump 21.
Patent GB-645684-A (GB)
Title: Improvements in vacuum electric discharge tube devices
Inventor: ROBINSON ERNEST YEOMAN
IPC: H01J19/40
Filed: 1945-02-22
Abstract: 645,684. Thermionic valves. EDISON SWAN ELECTRIC CO., Ltd. Feb. 22, 1945, No. 4443. [Class 39 (i)] A small valve in which three or more lead-in wires are arranged on a pitch circle of diameter of about 9.5 mms. or less, e.g. 3 mms. to 4 mms., has a centrally disposed capacity-screening wire sealed or embedded in the glass at the end of the envelope and connected within the valve envelope with a lead-in wire operated at an earthy potential. In the construction shown in Fig. 1 the glass disc or button 1 sealed to the bulb 2 carries seven lead-in wires 4, each comprised of a nickel outer lead-in wire, a copper-clad seal wire and an inner lead-in wire connected to an electrode, and a copperclad seal wire 5 sealed centrally in the glass disc or button and connected at 6 to one of the leadin wires connected to an electrode operating at an earthy potential. A metal disc 8 provided with a central hole is welded to the wire 5 and abuts the inner face of the button 3. A perforated metal disc or discs may abut the outer face of the button 3 or may be embedded therein. The central wire may project on both sides of the button and on the outside may be the same length as the lead-in wires or the outer portion may be cut off flush with or adjacent the outer face of the button, or the central wire may terminate inside the outer surface of the button. In the construction shown in Fig. 2, five circularly-disposed copper-clad leadin wires 9 are sealed through the glass button 10 and are adapted to be soldered directly to terminals on the chassis. The copper-clad wire 13 is sealed centrally through the button 10 and is connected at 14 to a lead-in wire 9 for an earthy electrode. In the construction shown in Fig. 3 four circularly-disposed lead-in wires are sealed directly into the glass of the bulb 16 by heating the bulb and pressing in the moulded open end of the bulb in a cruciform manner to effect the bulb closure. The central wire 17 is connected internally to one of the lead-in wires connected to an earthy electrode. When there are more than four operative lead-in wires an arm of the press may carry more than one lead-in wire or the number of arms in the press may coincide with the number of lead-in wires. Specifications 481,940, [Group XXXVI], and 490,511 are referred to.
Patent GB-927308-A (GB)
Title: Slip contacting device for rotary magnetic heads in a magnetic recording and reproducing equipment
IPC: G11B5/52
Filed: 1962-02-06
Abstract: 927,308. Rotating magnetic heads; local circuits for. NIPPON VICTOR KABUSHIKI KAISHA. Feb. 6, 1962 [Feb. 6, 1961], No. 4510/62. Class 40 (2). [Also in Group XXXVI] A plate 2 carrying 90 degrees spaced recording and monitoring heads which rotate to scan successive oblique tracks on a 180 degrees wraptype television recorder (Figs. 1, 2 (not shown)) has the leads to the heads taken to separate sets of slip-rings 10, 19, the leads and rings being mutually screened by a disc 27 and a tube 8. The recording head leads 15, 15<SP>1</SP>, duplicated to reduce inductance, are taken through the centre tube 8 to duplicated slip rings 10, 10<SP>1</SP> and the monitor head leads 24, 24<SP>1</SP> are taken outside the tube 8 to triplicated rings 19, 19<SP>1</SP>. Brush-holders, Fig. 5, are arranged at 90 degrees, the brushes being slidably supported in insulating tubes 11, 12 and 20, 21 respectively. The tube 8 serves also as a slip-ring for an earthing brush 28. Shields 25, 26 screen the respective sets of brush-gear and the leads (not shown) therefrom.
Patent GB-1462563-A (GB)
Title: Cutting tool for longitudinally cutting continuous sheets of film
IPC: B26D1/24
Filed: 1975-02-04
Abstract: 1462563 Cutting apparatus AGFAGEVAERT AG 4 Feb 1975 [7 Feb 1974] 4697/75 Heading B4B  A cutting tool for cutting thin films, e.g. photographic material, comprises circular, rotatably mounted upper and lower blades 1 and 2, respectively, the upper blade extending beyond the periphery of a cutting shoulder of the lower blade by an amount which exceeds the thickness "d" of the cutting shoulder, and means for urging the upper and lower blades resiliently against one another, the material of which the upper blade is made being harder than that of the lower blade. As shown in Fig. 3, a plurality of mating pairs of blades are mounted on shafts 6, the blades 1 being resiliently loaded by springs 5. The upper blade is made of a carbide metal and the lower blade of tool steel, e.g. a chromium steel.
Patent GB-525062-A (GB)
Title: Improvements in baffle plates for gas or vapour conduits of absorption refrigeratingapparatus
IPC: F28F13/12
Filed: 1939-02-13
Abstract: 525,062. Separating liquid particles from gases. ELECTROLUX, Ltd. Feb. 13, 1939, No. 4708. Convention date, Feb. 15, 1938. [Class 123 (iii)] In absorption refrigerating apparatus, particularly of the inert gas type, gas or vapour-containing conduits such as 2 are provided with a baffle plate consisting of a centrally disposed strip 1 having tongues 4 stamped out of the material, and bent outwardly to lie at right-angles to and alternately on opposite sides of the strip. Apertures 3 are provided to allow gas to flow therethrough. The tongue elements are of a length smaller than the inner diameter of the tube. In a modification, the metal strip is bent longitudinally in zig-zag fashion. The breadth of the strip may be slightly greater than the diameter of the tube into which it is wedged.
Patent GB-230056-A (GB)
IPC: A22C17/14
Filed: 1925-02-21
Abstract: 230,056. Stohrer Maschinenfabrik, W. Feb. 28, 1924, [Convention date]. Intestines, cleaning.-For cleaning animal guts. the material passes in succession between toothed rollers a, b and through a predetermined spape between rotary rigid scraping knives h and a rigid support k, this space being equal to double the gut-wall thickness and being adjustable by means, such as the screw n. The speed of the knives h is such that two successive knives engage the material at a distance apart of a few millimetres only. The rollers a, b have somewhat widely spaced teeth and the driven roller b is subject to a resistance such as that due to a brake c or to a spring arrangement which tends to rotate it in one direction against the drive.
Patent GB-886226-A (GB)
Title: Lifting and stacking truck
IPC: B66F9/075
Filed: 1958-02-13
Abstract: 886,226. Masted lift trucks; loading vehicles on to carrier vehicles. VEREINIGTE WESTDEUTSCHE WAGGONFABRIKEN A.G. Feb. 13, 1958 [March 2, 1957], No. 4798/58. Classes 78 (3) and 78 (4). A lift truck comprising a mast 7 which is movable lengthwise of the truck in guides 5 and on which a load-supporting carriage 11 provided with a fork, clamp or jib is vertically movable, is characterized in that substantially vertical support legs 30, which are adjustable in height, are provided on the load supporting carriage 11 and are guided for horizontal displacement on the carriage. As shown, the carriage 11 carries a pair of load-supporting forks which are provided with vertical side plates 13 and which are adjustable towards and away from each other, the forks also being provided with guides 21 for carriages 22 which support hydraulically extensible legs 30 and which are movable along the guides 21 by means of hydraulic rams 24. In order to lift a container 27 from a vehicle 28, the mast 7 is brought to the forward end of the truck to the position shown in Fig. 1 and the forks are engaged with the container. The carriage 11 is raised and simultaneously the legs 30 are extended, the rams 24 then being extended to move the mast 7 rearwardly to bring the centre of gravity of the load to a position over hydraulically actuated support legs 19 on the truck frame. On retracting the legs 30 the container may then be lowered on to the truck frame. The truck is loaded on to a rail vehicle 28 by placing the legs 30 on the far side of the vehicle and by lowering the carriage 11 on the mast 7 to raise the wheels 35 from the ground. The rams 24 are then retracted to pull the truck through the position shown in Fig. 4 to a position in which the wheels 35 are lowered on to a turntable 32. The single driving wheel 17 is then turned through 90 degrees and driven up an arcuate ramp 33 on to the vehicle 28. In a modification (not shown), the mast 7 and guide tracks 5 are mounted on an auxiliary frame which is pivoted about a vertical axis on the truck frame.
Patent GB-392683-A (GB)
Title: Improvements in and relating to retorts for low temperature carbonisation of fuels and the like
IPC: C10B1/04
Filed: 1932-02-19
Abstract: 392,683. Retorts. HIRD, H. P., 5, Manor Row, Bradford, Yorkshire. Feb. 19, 1932, No. 4909. [Class 55 (i).] A cast iron retort for low-temperature carbonization is made with a corrugated interior or exterior surface, or is corrugated on both surfaces, and is formed in sections C bolted together by flanges C<1> which are vertical and extend in the direction of flow of the heating gases.
Patent GB-912841-A (GB)
Title: Device for automatically detecting air pressure in a tyre and charging air thereinto
IPC: B60S5/04
Filed: 1960-02-12
Abstract: 912,841. Tyre-inflating plant. KABUSHIKI KAISHA SHINAGAWA SEISAKUSHO. Feb. 12, 1960 [July 8, 1959], No. 5016/60. Class 116. In a tyre-inflating plant comprising a compressed-air feed pipe F 2  with branches F 1 , F 3 , F 4 , leading respectively to the compressor C, pressure gauge P and to a vent, solenoid valves V 1  . . . V 3  in the branches are repeatedly opened in sequence, under the control of circuit control means operated by a synchronous motor, so that air is fed to or released from the tyre, the branch pipes are vented, and the pressure gauge is connected to the pipe, which sequence is repeated until the desired pressure set on the gauge is attained. The pressure gauge has a contact pointer P 1 , which gives a reading of the pressure, and a setting pointer P 2  which is pre-set to the desired pressure and which carries therewith limit contacts L, H, on each side thereof. The circuits of the valves V 1  . . . V 3  are controlled by relays MC 1 , MC 4 , MC 5 , which are under the control of switches DS 1  . . . DS 3  opened and closed in sequence by a drum switch actuated by a synchronous motor SM. Further switches DS 4 , DS  5 , on the drum switch serve to energize a lamp L and buzzer B when the tyre pressure reaches the pre-set value. When a tyre is connected to the line F 2  with main switch 5W 1  closed, valve V 3  is opened to operate the pressure gauge. Assuming the tyre pressure is below the pre-set value, pointer P 1  moves against contact L whereby the section 4. . . 6 of triode VG is energized and relay MC 5  is energized. When hand switch SW 2  on the air feed nozzle is closed, relay MC 1  is energized to close contacts 3, 2, and synchronous motor SM rotates to operate the drum switches DS 1  . . . DS 5  cyclically. Closing of switch DS 1  causes valve V 1  to be opened temporarily to supply a burst of air to the tyre; closing of DS 2  causes valve V 2  to open briefly to vent residual pressure from pipe F 2 , and closing of DS 3  opens valve V 3  to obtain a reading on the pressure gauge. This sequence continues until the tyre pressure rises to a value at which pointer P 1  reaches the pre-set value and moves away from contact L, when triode VG is de-energized to prevent further opening of the valves V 1 , V 2 . The switches DS 4 , DS 5 , now cause operation of holding relays MC 2 , MC 3  to put the alarm buzzer and lamp B, L 2  into operation. If the tyre pressure is above the pre-set value initially, the pointer P 1  rests against contact H and the relay MC 4  is energized so that the switches DS 1  . . . DS 3  cause venting of the pressure through valve V 2  until the pre-set pressure is reached.
Patent GB-939214-A (GB)
Title: Methods of preparing cracking catalyst and use thereof
IPC: B01J21/14
Filed: 1960-02-12
Abstract: A spray-dried fluid cracking catalyst contains synthetic silica-alumina-magnesia and in intimate association therewith 10-70% based or dry catalyst weight of a finely-divided inorganic siliceous additive material, the catalyst containing 10-30% synthetic alumina and 1,5-15% magnesia, the alumina-magnesia weight ratio being 1:1 to 8:1; the catalyst is prepared by a process comprising reacting a silica-alumina gel with finely-divided magnesium oxide at 30 DEG -75 DEG C. for at least 0,5 hours.  Specified additive materials are silica flow, fullers earth and kaolin which may be calcined and acid treated.
Patent GB-359346-A (GB)
Title: Improvements in or relating to earthing devices for luminous electric discharge tubes
IPC: H01R33/02
Filed: 1931-02-17
Abstract: 359,346. Couplings. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent- Treuhand Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) Feb. 17, 1931, No. 5046. Convention date, March 29, 1930. [Class 38 (i).] A terminal 9 for the connection of the earth wire 10 to a cable 1 and for supplying a luminous discharge device, is mounted on a ring 7 which is clamped against the metal shield 5 by means of the bush 2 and nut 8. The cable is gripped in the bush by means of a gland 4 and a rubber ring 3.
Patent GB-329326-A (GB)
Title: Improvements in the manufacture and production of valuable salt mixtures suitable for use as fertilizers containing carbamates or conversion products of carbamates
IPC: C05B7/00
Filed: 1929-02-15
Abstract: 329,326. Johnson, J., Y., (I. G. Farbenindustrie Akt.-Ges.). Feb. 15, 1929. Manures.- In preparing carbamates as described in Specification 328,005, [Class 1 (iii) Oxides &c., Metallic], by reaction of carbon dioxide upon solutions of metal salts in liquid ammonia, the carbamate is not separated but the whole reaction mixture is evaporated to obtain mixtures of salts suitable for use as fertilizers. The mixtures may be heated alone or with water or ammonia under pressure and additional fertilizing ingredients may be added. In examples, (1) potassium nitrate is added to liquid ammonia, carbon dioxide is passed in, and the ammonia evaporated, leaving as residue a mixture of potassium carbamate and ammonium nitrate. Ammonium phosphate may be added before the evaporation. The mixture may be heated under pressure with ammonia., or, according to the Provisional Specification, with alcohol, to obtain a mixture of ammonium nitrate, urea, and potassium carbonate, (2) Crystallized calcium chloride is dissolved in Diver's liquid (liquid ammonia containing ammonium nitrate) and gases from a lime furnace passed in. After evaporating the. ammonia, a mixture of calcium carbamate, ammonium nitrate and ammonium chloride is obtained. Specification 300,629, [Class 1 (iii), Oxides &c., Metallic], also is referred to.
Patent GB-1394992-A (GB)
Title: Indicating instruments
IPC: G01D7/04
Filed: 1972-05-23
Abstract: 1394992 Indicating apparatus REYROLLE PARSONS Ltd 23 May 1972 [23 Feb 1971]  5213/71 Heading G1J A measuring instrument has a pointer comprising a first electrode 10 and movable relative to a second electrode 11, a fixed screen 12 which lies with its thickness between the two electrodes over the whole sweep of the pointer movement and has a window 14 across which the overall dielectric constant is different from the overall dielectric constant across the thickness of the remainder 13 of the screen, so that when the pointer moves into a position in which the window 14 is interposed between the two electrodes the capacitance between them changes, and circuitry 18-23 produces an electric signal in response to said change in capacitance. The pointer of a single instrument may form one of the electrodes 10, 11, or both electrodes may be instrument pointers indicating respectively the values of two measured parameters, the screen 12 extending between their planes of movement. The pointers may move linearly, transversely of one another, Fig. 1, or may be pivoted Fig. 4 (not shown). The area 13 of the screen 12, which is of thin transparent dielectric material, is coated on one side with a thin metallic film 13 thin enough to remain transparent. The window 14 defines the area over which the electrodes 10, 11 may intersect without unbalancing an A.C. bridge circuit. When the point of intersection 15 occurs across the film 13, the capacitance between the electrodes is reduced and a detector 19 indicates inbalance. Alternatively the detector may trigger an alarm signal. The metal deposit 13 may be of gold or chromium, and the capacitance between the electrodes of the order of 0.1 picofarads.
Patent GB-931765-A (GB)
Title: Improvements in or relating to heating apparatus
IPC: F24D5/08
Filed: 1959-02-14
Abstract: 931,765. Electrically heated air circulation systems. A. G. PEVERIL. Feb. 15, 1960 [Feb. 14, 1959], No. 5218/59. Class 39 (3). [Also in Groups XIII and XXVIII] Heating apparatus for a room, road, or for heating boil, includes an air conduit containing an electric heater and extending as two parallel runs, closely adjacent one above the other, to form a closed circuit between the inlet and outlet of a blower, whereby the coldest and hottest conduit portions are adjacent so that approximately the same total amount of heat is given out at all points of the circuit. Blower 6, Fig. 1, drives air through vertically adjacent conduits 17, 18 past heaters 7, 8 mounted in fireclay chambers 11, 12 within case 15, Fig. 3. The electric heating of the conduit air may be supplemented by use of the waste heat of a stove, and heat transfer between the two conduits may be facilitated by an interconnecting flange (see Group XIII).
Patent GB-545213-A (GB)
Title: Improvements in electron beam disharge devices
IPC: H01J29/88
Filed: 1941-04-23
Abstract: 545,213. Electron oscillators. BRITISH THOMSON-HOUSTON CO., Ltd. April 23, 1941, No. 5231. Convention date, April 27, 1940. [Class 39 (i)] [Also in Group XXIII] In cathode ray tubes with means such as rings 44, 45 for fixing the potential level at points along the beam path in a quartz tube 10, wall charges are limited by a glass layer formed on the interior surface by fusing with the silica an alkali free oxide ; this may be P 2 O 5 , B 2 O 3 , PbO or a mixture of these oxides. The tube shown is of the kind described in Specification 541,271 ; additional to the glass layer, a coating of magnesium oxide may be used to limit secondary emission.
Patent GB-256500-A (GB)
Title: Improvements in air distributing systems for drying kilns and the like
IPC: F26B17/14
Filed: 1926-02-24
Abstract: 256,500. Klingler, A. Sept. 11, 1925, [Convention date]. Malt kilns. - A malt kiln comprising two or more superposed sections has air-distributing pipes 1 - - 5 which communicate at their ends with vertical air ducts formed in the walls of the kiln and which have regulable air outlets. A, valves D being provided between the pipes for controlling the supply of air to the section below the pipes. By closing the valves, the malt in the upper sections of the kiln can be ventilated, while that in the section beneath the pipes is maintained at a high temperature. The pipes may be divided by central partitions into divisions that communicate with air channels in opposite walls of the kiln. Further, several pipes may be supplied with air from a common air channel.
Patent GB-222758-A (GB)
Title: Improvements in advertising, business and the like signs
IPC: G09F13/04
Filed: 1924-03-03
Abstract: 222,758. Dawson, W., and Ingle, F. March 3, 1924. Drawings to Specification. Name and number plates.-A stencil cut from ' lincrusta ' is attached by means of an adhesive to a sheet of translucent glass, and the whole mounted in a frame. Filling pieces may be placed where necessary to complete the letters, or complete letters stuck within openings in the stencil.
Patent GB-622322-A (GB)
Title: An improved hoe
IPC: A01B1/20
Filed: 1947-02-25
Abstract: 622,322. Garden tools. CONSTANTINE, H. E., and SKINNER, A. T. Feb. 25, 1947, No. 5458. [Class 6(ii)] A draw-hoe 4 and a thrust hoe 6 are mountec on the same handle, the thrust-hoe being securec to a U-shaped member fastened near the middle of the swan-neck of th( draw-hoe.
Patent GB-780614-A (GB)
Title: Quartz-to-metal seals
Inventor: RAWSON HAROLD
IPC: C03C27/04
Filed: 1955-02-23
Abstract: 780,614. Quartz-molybdenum seals. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 1, 1956 [Feb. 23,1955], No. 6480/55. Class 36. A molybdenum ribbon is provided with a surface coating containing silicon before being sealed with a quartz body. The coating may be formed by the process disclosed in Specification 730,855.
Patent GB-511455-A (GB)
Title: Improvements in and relating to air filters
IPC: B01D46/26
Filed: 1938-02-22
Abstract: 511,455. Air filters. BLEACHERS' ASSOCIATION, Ltd., and GREGG, W. P. Feb. 22, 1938, No. 5496. [Class 8 (ii)] A filter drum 3 is mounted on a rotary shaft 4 and provided with a peripheral screen forming the inlet, and an outlet through a head to the trunk 10, a seal 8 being placed at the junction of the head and trunk inlet. The filter is cleaned by a suction nozzle 13 operating over a small area. Reference has been directed by the Comptroller to Specification 1155/06, [Class 8].