baber/WOPTO huggingface dataset:
Patent GB-881935-A (GB)
Title: Fuel injector for a combustion chamber
Inventor: VDOVIAK JOHN WILLIAM
IPC: F23R3/20
Filed: 1959-08-31
Abstract: 881,935. Liquid fuel injectors. GENERAL ELECTRIC CO. Aug. 31, 1959, No. 29614/59. Class 75(1) Fuel is injected into a combustion chamber of a gas turbine by a radial pipe 33 having distributing orifices 40 at different radial locations and supplied through a pressure sensitive valve 42 located outside the combustion chamber. The valve 42 has a dash pot 58 containing a piston 62. In a modification the injector comprises a plurality of parallel pipes of different lengths extending from a distributing chamber fed with fuel through a pressure sensitive valve, each pipe having a discharge orifice at its end remote from the distributing chamber. In another embodiment a pressure operated valve opens simultaneously a plurality of inlets to parallel pipes of different lengths having discharge orifices at their ends.
Patent GB-681782-A (GB)
Title: Lock device for well tools
Inventor: JR EARNEST HUBERT CLARK
IPC: E21B33/129
Filed: 1950-12-04
Abstract: 681,782. Well tools. BAKER OIL TOOLS, Inc. Dec. 4, 1950, No. 29656/50. Class 85 In a well tool, such as a packer, where the operation of the tool is controlled by relative longitudinal movement between two parts of the tool which, to permit removal of the tool, are rigidly coupled together by a clutch unit that is engaged or disengaged by relative rotational movement between the two parts, there is provided a locking unit 'between said parts that prevents them being re-engaged by accidental rotational movement between the two parts. Upward movement of a mandrel 10 relative to a drag device 26' sets slips 13 and expands packer 16, whilst the reverse motion of the mandrel frees the packer and slips. To permit the tool to be removed from the well, the mandrel and drag device are rigidly coupled together by a clutch unit formed by spring- biased arcuately disposed segments 52 positioned therebetween, the outer surfaces 51 of the segments engaging with a complementary surface 50 on the device 26 and the toothed inner surfaces 53 engaging with teeth 54 on the mandrel, the shape of the teeth being such that the mandrel can move downwards, but not upwards, through the clutch when the teeth are engaged. The teeth are freed by rotating the mandrel relative to the drag device so that the constraining spring 56 is expanded thus enabling the segments to move outwards from the mandrel. The expansion of the spring is due to one end thereof abutting against a stop 58 on the sleeve 30 whilst a projection 59 on the other end of the spring is forced outwards clear of a keyway 60 in the mandrel. The locking unit comprises an angularly adjustable spring-loaded pin 72 attached to the sleeve 30 to extend through an arcuate gap 79 therein so as to enter the keyway 60 when the mandrel has been rotated the necessary amount relative to the device 26 to free the clutch.
Patent GB-902549-A (GB)
Title: Digital computing system
IPC: G06F7/491
Filed: 1959-08-31
Abstract: 902,549. Electric calculating apparatus. COSTE, L. E. Aug. 31, 1959 [Sept. 5, 1958], No. 29659/59. Class 106 (1). Arithmetic operations are carried out in a notation designated " algebraic quinary " (due to Cauchy) in which decimal digits 0-9 are represented by 0,1, 2, 3, 4, 5 or 15, 14, 13, 12, and 11 respectively, 14 for example indicating " 10 minus 4 " or " minus 4 carry 1." Four bits are used for each decimal digit, one so-called " sign-bit " which shows the sign of the digit (" 0 "=positive, " 1 "=negative) and thus also indicates any carry, and three giving the binarycoded magnitude of the digit 0-5. Fig. 2 shows schematically a coding matrix for coding a number entered as a series of decimal digits into algebraic quinary; the digits are entered, most significant digit first, by successively energizing the inputs C0-C9. Each decimal digit signal sets magnetic cores D1a, D2a, D3a and Ds in accordance with its magnitude or " absolute value " and sign in the algebraic quinary code (D1a=1, D2a=2, D3a=4), and also sets in cores D1b-D3b the magnitude of its " absolute value + 1." As the next digit is entered, a shift pulse (circuit not shown) shifts the sign bit into Es, and the magnitude bits of the " a " cores into the " E " set if the new digit is " positive " (0-4), or if it is negative the bits from the " b " set are so shifted ( inhibit windings preventing the undesired shift) so that the necessary carry is effected when negative numbers are produced. Further shift as new digits are entered transfers the coded digits to a set of output cores and thence to lines MS and M1-M3. Fig. 3 (not shown) illustrates a similar matrix for coding a decimal number entered least significant digit first. Fig. 4 shows schematically an adder receiving inputs at A and B and providing a sum output at F. The incoming algebraic quinary digits in series-parallel form (e.g. from the output cores of Fig. 2) are steered by units CA, CB to adder ADP if they are positive and ADN if negative, and each adder produces an output representing the sum of two digits presented to it (one or both of which may be zero). Fig. 6 shows such an adder receiving at A1-A3 and B1-B3 binary-coded digit magnitudes from CA and CB and having magnetic core circuits at the horizontal positions indicated by t3-t7 through which data is passed at these times by shift pulses ; the circuits act as " inhibit " gates, " and " gates (shown as rectangles) and " or " gates (shown by converging arrows). The output at U1-U4 represents the binary-coded sum of the input received 5 shift-pulses earlier (U4 represents 8), and the two such outputs from ADP, ADN are fed to a transcriber unit T (Figs. 7 and 8, not shown) which acts to subtract the two binary-coded numbers presented to it and provide a series-parallel output at F in the algebraic quinary code. A multiplying network of gates for multiplying the " magnitude " bits of algebraic-quinary-coded digits is described (Fig. 11, not shown), and decoding networks for converting back to decimal digit outputs (Figs. 12 and 13, not shown).
Patent GB-930592-A (GB)
Title: Improvements in or relating to milk churns and other containers
Inventor: LEACH JAMES SHEPHERD
IPC: B65D25/24
Filed: 1958-09-17
Abstract: 930,592. Containers. SWINTEX Ltd. Sept. 16, 1959 [Sept. 17, 1958], No. 29716/58. Class 66. A shock absorbing and silencing ring 10, for the bottom rim of a milk can or like container, is made of rubber or other suitable material and incorporates an annular channel-shaped metal reinforcement 12, so positioned as to receive and distribute stresses from such rim and to resist sheer and abrasion thereby. The ring is preferably of rectangular cross-section and the base of the reinforcement is uncovered at the bottom of the channel for direct engagement with the rim of the can.
Patent GB-641819-A (GB)
Title: Telecommunication systems
IPC: H04M3/523
Filed: 1947-11-07
Abstract: 641,819. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. Nov. 7, 1947, No. 29728. Convention date, May 31, 1943. [Class 40 (iv)] In a system having no individual line and cut-off relays in which a common line finder starting circuit is controlled by the change in potential on a test wire due to the closing of a subscriber's loop circuit, a rectifier Re1 is connected between each test wire and the common starting circuit to prevent the change in potential due to the calling line affecting the potentials on the test wires of the remaining lines. A change in potential on a test wire t due to a call on the line a, b is applied through the rectifier Re1 and renders further rectifiers Re2, Re3 in a modulator circuit conductive so that a 450 c.p.s. input at transformer Tr1 is applied to a discharge tube T1. A start relay Sr operated by the discharge tube causes a free line finder LF to hunt, a test wiper LFc applying the test wire potentials to a second modulator circuit controlling a discharge tube T2. A high-speed test relay TR, operated by the discharge tube T2 when the calling line is found, connects full battery potential to the test wiper over a contact A and disconnects the test modulator circuit, the increased potential in the test wire extinguishing the discharge tube T1 and so releasing the start relay. Specification 283,971, [Class 40 (iv)], is referred to.
Patent GB-483924-A (GB)
Title: Improvements in and relating to tunnelling
IPC: E21F16/00
Filed: 1936-11-02
Abstract: 483,924. Tunnelling. BROWN, W. L. LOWE-. Nov. 2, 1936, No. 29818. [Class 68 (i)] In tunnelling in water-bearing ground, a water discharge duct within the tunnel itself is maintained at a pressure below that in the tunnel, and aspirator pipes separate from but connected thereto extend into the ground adjacent the tunnel, means being provided for removing water that may percolate into the discharge duct. In Fig. 2, aspirator pipes 3 are connected through a discharge duct 2 to a receiver 5 from which an air-outlet pipe 6 passes to atmosphere or to a vacuum pump, while a pump 7 delivers water to a pipe 8. In hard ground, the pipes 3 have perforated inner ends and are fitted in bore holes, packing being provided adjacent the tunnel face. In soft ground, the pipes 3 are provided with pointed shoes at their forward end and driving heads at their rear end, and the perforations therein may be screened with gauze &c. In another form, one or more small headings are driven ahead of the main tunnel,while in Fig. 8, headings K are scaled off by covers 18, the pressure in the headings being kept below that in the tunnel; the headings may have outwardly flanged linings 20 of iron or steel segments. With two headings, draining may be effected from each in turn while the other is opened and driven further ahead.
Patent GB-617946-A (GB)
Title: Improvements connected with radiators for caravans and the like
IPC: F24C5/00
Filed: 1946-10-09
Abstract: 617,946. Oil Stoves. DAWTREY, C. R. Oct. 9, 1946, No. 30093. [Class 126] A radiator for a caravan or the like comprises a lamp provided with a cowling 5 having one or more apertures 11 in its side, a plurality of heatradiating tubes 7, which are bent substantially at right angles to pass through a wall, extending upwardly from the top of the cowling 5. The lamp preferably provided with a gauze glowing element 2 may be supplied with fuel from a tank 3 beneath the floor of the caravan and transmits heat and light radiation through the apertures 11 which may be covered with detachable guards. A louvre 10 protects the exterior ends of the tubes 7.
Patent GB-651474-A (GB)
Title: Improvements in and relating to valves
IPC: F16K39/04
Filed: 1947-11-12
Abstract: 651,474. Joint-making packing. VOLPIN, A. S. Nov. 12, 1947, No. 30146. Convention date, Sept. 2, 1944. [Class 122(iii)] [Also in Group XXIX] In a sliding-gate or rotary cylindrical valve (see Group XXIX), an annular extension 11 on a seat member is sealed with respect to the valve housing by the introduction into a groove 43 of a sealing substance, e.g. a castor oil base lubricant. This substance, which is also used for lubricating and sealing the relatively movable parts of the valve, is contained in reservoirs 47 having pistons 48 and is pressurized by leakage of fluid controlled by the valve into a chamber 5.
Patent GB-1294019-A (GB)
Title: A method of depositing substances on a heated support
IPC: B01J19/00
Filed: 1970-06-22
Abstract: 1294019 Coating substrates by decomposition of a liquid compound PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 22 June 1970 [25 June 1969] 30154/70 Heading C7F A substance is deposited on a substrate by pyrolysos of a liquid which decomposes between 1000 and 3000‹ C., the substrate being heated in contact with the liquid to a temperature above the decomposition temperature, and the liquid and the substrate being moved relatively to each other. The substrate may be a wire or sheet and may be porous, and may be made of Mo, W, Ta, Wc, TaC, SiC, BC, C, Cu, Fe, Cr, aluminia Re, Pt or glass. The liquid may be paraffin, benzene, xylene, toluene, tetrachloromethane, ethers, ketones, alcohols, dimethyldichlorosilane, aluminium chloride ammoniacetate, trichloroborazol, tungsten hexafluride or tungsten hexachloride. The substrate may be heated by induction or by passing a current through it.
Patent GB-735652-A (GB)
Title: Liquid fuel supply systems for prime movers
Inventor: JONES WILLIAM EDWARD
IPC: F02C9/16
Filed: 1952-11-29
Abstract: 735,652. Gas turbine plant. LUCAS (INDUSTRIES), Ltd., J. Nov. 3, 1953 [Nov. 29, 1952], No. 30312/52. Addition to 717,669. Class 110 (3). [Also in Group XXIX] In the dual-pump liquid fuel supply system for jet propulsion and other gas turbine engines which is described in the parent Specification, the automatic servo-control means which is responsive to the pressure of the blower air is provided with means whereby the effective pressure of the blower air may be adjusted to a value below atmosphereic pressure. The last-mentioned means comprise a pair of passages i, n, to which blower air is admitted and from which it passes to atmosphere, a valve u whereby either passage can be closed and the other opened, a pair of restricted orifices k, m in the passage i, a venturi throat o in the passage n, the entrance of the latter passage opening between the orifices k, m, a branch passage q leading from the throat of the venturi to the blower air actuated capsule 14 of the above-mentioned automatic servocontrol means, an automatic valve e responsive to the blower air pressure or a predetermined fraction thereof for controlling the air flow through the restricted orifices, and a throttle z in the outlet of the passage n containing the venturi throat. The automatic valve e cooperates with a seating at the end of the passage i and is carried by a capsule d in a chamber b. Arranged on the capsule d is an evacuated capsule h of smaller diameter. The interior of the capsule d is connected by a passage r to a chamber c open to the atmosphere through a passage y. The outlet s of the passage r and the outlet t of the passage n are controlled by the valve u which is normally held in the position shown by a spring w acting on a lever v but may be moved to its alternative position on energizing a solenoid x the latter being effected when the isolating valve described in the parent Specification is moved to its closed position. The chamber b may be subjected to blower pressure, but preferably it is connected by a passage 17 to a point between two restricted orifices 4, 5 in a passage 3 leading from the passage i to the outlet s. The capsule 14 through a lever 11 actuates a servo-vent valve 10 controlling a throttle 7 in the main supply pipe g to the burners f as described in the parent Specification. When both fuel pumps are working, the valve u closes the outlet t and when the ratio of the pressures acting on the capsule d exceeds a predetermined amount, the valve e closes so that the full blower pressure acts on the capsule 14. At other times the effective pressure depends on the relative areas of the orifices k, m. When one of the pumps is put out of action and the isolating valve is closed, the valve w is switched over to its alternate position closing off the outlet s and therefore the passages i, n, 3. The capsule 15 is now subject to the reduced pressure at the venturi throat o. The value of the reduced pressure is adjustable by the throttle z.
Patent GB-1403657-A (GB)
Title: Method of increasing the photoconductivity of a photoconductive  powder
IPC: G03G5/05
Filed: 1973-06-26
Abstract: 1403657 Electroluminescence MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 26 June 1973 [26 June 1972 (2)] 30338/73 Heading C4S [Also in Division Hl] An X-ray image converter comprises a transparent glass substrate 1 bearing a transparent electrode film 2 of SnO 2 , an electroluminescent layer 3 of ZnS powder dispersed in urea resin, a reflective layer 4 of BaTiO 3  in urea resin, an opaque layer 5 of carbon black in epoxy resin, a photo-conductive layer 6 comprising powder of a II-VI compound of enhanced photo-conductivity and an X-ray permeable electrode 7 of vacuum-evaporated Al. Layer 6 may comprise CdSe powder, activated by Cu and Cl, which, with an epoxy resin binder, is suspended in diacetone alcohol and ultrasonically agitated to cause sufficiently rapid flow of the suspension to polish the particles of powder so as to increase their photoconductivity. Alternatively, activated CdSe powder may be suspended in toluene with an ethylcellulose binder and agitated in a domestic liquidizer before being precipitated on to opaque layer 5. CdS and CdS x Se 1-x  powders are mentioned, as are Ag and Br activators. Electrode 7 may alternatively be permeable to IR or visible light to produce variant image converters.
Patent GB-1101583-A (GB)
Title: Improvements in and relating to a control circuit arrangement for controlling temperature variations of a fluid and a comparison circuit arrangement for use in conjunction with the control circuits
IPC: D06F34/08
Filed: 1965-07-16
Abstract: 1,101,583. Automatic temperature control systems. C.A.C. MÏLLER. July 16, 1965 [July 20, 1964], No. 30411/65. Heading G3R. A digital temperature control system has a rate of temperature variation store 1 and a reference temperature store 2, both stores being of the binary type constituted by transistor circuits and may be controlled by a programme recorded on punched cards, or tape, or magnetic tape. The output of store 1 passes to a control unit 4 which at time intervals dependent on the rate number supplies a pulse to a register 6 which is advanced or retarded preferably by one digit increments. The register 6 continuously indicates the set temperature and supplies an output to a bridge circuit 8 which includes a sensing thermistor 9, the bridge output being passed to a control circuit 10 which energizes the heating or cooling members 12, 13. To determine whether the pulse output from unit 4 should be added or subtracted in the register 6 a comparison circuit 14 connected to store 2 supplies a signal on lines 17 or 18 if the actual temperature is greater or less than the set temperature at store 2. These signals may also via lines 19, 20 determine whether the heating or cooling members 12, 13 should be energized. If the system must follow the temperature variations with rapidity, a high frequency pulse generator 21 is energized at a high rate number to provide a more rapid response.
Patent GB-844202-A (GB)
Title: Light metal vane for rotary compressor
IPC: C25D11/00
Filed: 1958-09-24
Abstract: 844,202. Coating aluminium and magnesium electrolytcally. DAVEY, P. H. Sept. 24, 1958 [Jan. 29, 1958], No. 30475/58. Class 41 [Also in Group XXVI]. A light alloy vane 17 for rotary compressors (see Group XXVI) has a refactory abrasion constant coating deposited thereon electrolytically by passing alternating current through vanes as electrodes suspended in an aqueous solution of approximately 18 ounces potassium hydroxide, 4 ounces aluminium hydroxide, 4À5 ounces tri-sodium phosphate, 4À5 ounces anhydides potassium fluoride and 2À5 ounces potassium manganate per gallon of solution, with a current density of 15 to 20 amperes per square foot for 60 minutes. Under spectrographic analysis the coating is found to be 12% aluminium oxide, 75 % magnesium oxide and the remainder a mixture of manganese, aluminium and magnesium fluorides. An outer self-lubricating coating 28 of graphite or molybdenum disulphide is afterwards bonded to the abrasion-resistant coating 27 by a thermosetting resin.
Patent GB-855288-A (GB)
Title: Improvements in and relating to the selective hydrogenation of acetylene to ethylene
Inventor: SPENCER MICHAEL STAINES
IPC: C07C5/09
Filed: 1958-09-24
Abstract: Acetylene is selectively hydrogenated to ethylene by a solution containing [Ni2 (CN)6]4-, hydrogen and cyanide ions formed by contacting a solution containing [Ni (CN)4]2- ions with nascent hydrogen.  The molar ratio of CN to Ni is preferably at least 4 to 1 and temperatures of 0-60 DEG C. are used.  The solution is preferably circulated through a reactor and contacted with nascent hydrogen before recycle, the hydrogen being formed from sodium amalgam and water or electrolytically.
Patent GB-476977-A (GB)
Title: Improvements in grillers in ovens and stoves
IPC: F24C15/16
Filed: 1936-11-09
Abstract: 476,977. Grilling-apparatus. NEWTON MANUFACTURING CO. PROPRIETARY, Ltd. Nov. 9, 1936, No. 30487. Convention date, Nov. 8, 1935. [Class 28 (i)] [Also in Group XI] Grilling-apparatus comprises superposed horizontal parallel hot-plates 5, 7 located in an oven or stove, the meat being cooked by direct contact with the plates which are relatively vertically adjustable according to the thickness of the meat. As shown, the oven 1 is divided into two heating-chambers 2, and is heated by oil in a jacket 4. The bottom plates 5 rest on the floors of the chambers 2, and the top plates 7 are vertically adjustable by the handles 24 which are connected by shafts, and bevel and worm gearing to two vertical screws, on opposite sides of the plates 7. The screws are mounted to rotate without longitudinal motion, and non-rotary nuts thereon carry channel members 9 in which the plates 7 are slidably received. All the nuts may be arranged to be adjusted by a single handle 24, and, by providing right- and left-handed screws, the bottom plates 5 may be adjusted simultaneously with the top plates. The adjustable hot-plate may be made in portions, which are adjustable independently to suit a steak of uneven thickness. The margins of the plates 5, 7 are grooved, the grooves of the lower plate collecting the juices and delivering it to an external trough 31, having a drain to lead it away. The Specification as open to inspection under Sect. 91 states that the adjustable hotplate may be inclined to suit a steak of uneven thickness. This subject-matter does not appear in the Specification as accepted.
Patent GB-782330-A (GB)
Title: Improvements in or relating to vibrators
IPC: B06B1/16
Filed: 1955-10-25
Abstract: 782,330. Vibratory mechanism. PREPARATION INDUSTRIELLE DES COMBUSTIBLES. Oct. 25, 1955 [Nov. 18, 1954], No. 30512/55. Class 80 (4). A vibrating device is in the form of a tubular member 1 rotating on a fixed axle 4 and having internally arranged out-of-balance weights 13, 14, 15, 16 secured thereto. The member 1 may serve as a pulley to be driven by a belt 20 and its axis is offset in relation to the axle 4 by an amount equal to the vibrating radius of the device in order to maintain a constant belt tension. The weight 16 may be replaced to adjust the amplitude of the vibrations imparted. The unbalanced weight may be partly or wholly of shot, powder or liquid in which case the chamber containing such mass is circular and eccentric to the tube so that resistance to starting up of the device is reduced. The tubular member may be provided with a V-pulley or toothed gear for driving by a V-belt or gearing.
Patent GB-1222062-A (GB)
Title: Electric storage batteries
Inventor: GOLDINGAY CHARLES HENRY
IPC: H01M2/10
Filed: 1967-07-03
Abstract: 1,222,062. Battery with carrying handles. JOSEPH LUCAS (INDUSTRIES) Ltd. 2 July, 1968 [3 July, 1967], No. 30524/67. Heading H1B. A storage battery comprising a rectangular moulded case 11 has a pair of flexible handles 14 secured to the lid 12 at spaced points 13 along the longer sides thereof. The handles may be of polypropylene rope keyed into holes in the lid by an epoxy resin. In an alternative arrangement the handles are transverse to the lid.