baber/WOPTO huggingface dataset:
Patent GB-495132-A (GB)
Title: Improvements in electric discharge lamps having liquid cooled envelopes
IPC: H01J61/52
Filed: 1937-07-26
Abstract: 495,132. Discharge lamps. GENERAL ELECTRIC CO., Ltd., and ISAACS, G. GLYNN-. July 26, 1937, No. 20617. [Class 39 (i)] A high-pressure tubular lamp is provided with a cooling sleeve which consists wholly or partly of vitreous material, surrounds the lamp at a distance not much greater than the diameter of the lamp, is fitted at one end with an inlet for cooling liquid, and opens at the other end into a partly or wholly vitreous vessel which surrounds the sleeve and is fitted with an outlet for the liquid at the end at which the inlet is arranged. A quartz lamp 1, is surrounded by a sleeve 2 which is slit to house the pip 8 and is supported within a rubber bung 4 of the vessel 3. Leading- in wires 7, 12 are provided and the lamp is supported by springs 10 and rubber tubing 11. Water is supplied through the tube 6 and is discharged through the tube 14, which is arranged as shown to prevent the accumulation of air. The lamps are adapted to be used in the horizontal position and the Specification contains dimensions of the lamp and sleeves. Specification 475,051 is referred to.
Patent GB-839783-A (GB)
Title: Improvements in growth of uniform composition semi-conductor crystals
IPC: H01L21/00
Filed: 1957-07-01
Abstract: <PICT:0839783/III/1> In a method of growing a single crystal of silicon or germanium having a constant concentration of electrically significant activator impurities therein, the material 29 is placed in a crucible 8 and melted by energizing induction heating coils 27 and 28, the temperature is then lowered so that the material solidifies but remains plastic, the power to the coils 27 and 28 is then increased until a molten zone 30 appears, coil 27 having more turns than coil 28, and a seed crystal 32 is then dipped into the molten zone 30 and raised to grow a single crystal 31, the molten zone being replenished from the unmelted portion by progressively lowering coils 27 and 28.  Impurity material having a segregation coefficient below unity is added to the molten zone 30, or may already be present in the material 29.  When the segregation coefficient is below 0.1 the coils 27 and 28 are lowered at such a rate that the volume of the molten zone 30 is constant, but when the segregation coefficient is above 0.1 the volume of the molten zone is progressively decreased to maintain the concentration of the impurity in the molten zone constant.  In examples single crystals of germanium containing antimony, arsenic, phosphorus, indium, aluminium and gallium, and single crystals of silicon containing antimony, aluminium, gallium, and indium, are prepared.
Patent GB-1358944-A (GB)
Title: Clipping apparatus for tyring stuffed casings
IPC: A22C11/10
Filed: 1972-05-04
Abstract: 1358944 Clipping stuffed casings RHEEM INTERNATIONAL Inc 4 May 1972 20704/72 Heading A2B  A cliping apparatus for use in conjunction with a stuffing horn for tying stuffed casings comprises a device 4 for constricting the stuffed casing incorporating a fluid driven cylinder 11 adapted to reciprocate through a clipping stroke to apply a clip at the constricted point, and a cabinet 44 containing the control elements therefor, the clipping device being supported on a tubular member 37, 38, 41, 42, extending upwardly from the cabinet and receiving flexible fluid lines 141, 143, 145 therethrough which join the clipping device and the control elements, the height of the tubular member being adjustable to permit adjustment of the height of the clipping device to suit stuffiing horns of different heights.
Patent GB-250089-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: B60L15/00
Filed: 1925-08-18
Abstract: 250,089. Jackson, A. H. Aug. 18, 1925. faster control systems, electromagnetic.-An accelerating controller drum 2 turned by a pilot motor 85 and normally proceeding through successive steps automatically under the control of a current-limit relay 8, is provided with an additional master switch 111 and two' additional train wires 133, 138 leading to a non-'automatic relay 118 which renders the current limit relay ineffective. Successive single steps may thus be obtained, regardless of the relay 8, by the driver first setting the switch 111 in its left hand position, and afterwards moving the M<SP>g>uiar master switch 59 through its successive positions 1 - - 4 &c. After each master step the pilot motor makes one accelerating step and then stops, as it is short circuited through the group of drum contents 124 and one or the other of the train wires 133, 138 which are connected to respective rows of master contacts 145, 146 so as to come into action alternately. Specifications 235,258 and 249,366 are referred to.
Patent GB-1066814-A (GB)
Title: Non-woven fabrics
IPC: D04H3/07
Filed: 1964-05-20
Abstract: 1,066,814. Laminates and laminating. ORCON CORPORATION. May 20, 1964 [May 20, 1963; May 6, 1964], No. 20749/64. Heading B5N. [Also in Division D1] Non-woven fabrics comprising parallel warp threads cross-laid with adhered wefts (and certain modifications thereof referred to below) are made in apparatus in which a cylindrical or other array of warp threads on a support is wrapped, while advancing through the apparatus, with an adhesive-coated weft or wefts passed through a magazine revolved about the warps, and the cylindrical fabric is slit and opened to flat form. As shown, Fig. 1, warp strands WS are drawn from cops supported horizontally on both sides of a frame and are tensioned by passing sinuously around pairs of rollers in adjacent frames 33. Thence the strands pass through individual porcelain eyelets arranged in concentric circles in a board 41 and are brought into close juxtaposition by passage through eyelets in a disc 48 and are carried radially inwardly through a ring of quadrant section in the centre of the disc. The concentrated cylindrical array of strands is then circumferentially wrapped with cross strands fed from cops mounted in housings 68 carried on a rotating cylindrical shell 61, the strands being drawn through adhesive-containing boxes 75 and delivered through tubes 81 close to the warp strands. Wrapping takes place about a cylindrical core the first section 53 of which is formed with diagonal surface grooves, or is a wire cage, to spread or remove surplus adhesive. Electric heating elements are provided within the core to dry and cure the adhesive. The completed tubular fabric 96 passes between pairs of positively and synchronously driven rollers 97, 98, set at right angles to one another, is slit and flattened at point 108 and delivered to wind-up means 45 via tension-control means which may include a floating roller carrying mercury switches used to control the wind-up drive. Spring-pressure rollers may be used to flatten the warp threads and space them evenly. The cross strands, e.g. CS, Fig. 31, may be of different sizes and some only, e.g. CS1, may be adhesive-coated; alternatively or in addition some warp strands (WS) may be adhesive-coated by being passed separately through coating baths near the centre of the disc 48 or through coating tubes at its periphery. The adhesive threads may be used to secure together two layers of fabric the strands of which may be angularly disposed to one another. In further modifications, (a) a web of paper or plastic material, or a belt of P.T.F.E., may be fed within the cylinder of warp strands and over the core 53, and may serve to support the fabric and absorb surplus adhesive, and may be stripped from the finished fabric, or may form part of the finished product, (b) warp strands may be dispensed with, the product comprising a web having adhesivelyapplied parallel cross strands, (c) the fabric may be of asbestos or metal. Two-layer fabrics may be used to reinforce rubber sheeting.
Patent GB-335990-A (GB)
Title: Improvements in and connected with the water services or supplies on travelling vehicles such as railway carriages
IPC: B61D35/00
Filed: 1929-07-06
Abstract: 335,990. Stone & Co., Ltd., J., (Bolton, C. J. H.). July 6, 1929. Water supply.-In a water supply device for railway vehicles &c. wherein compressed air is used to discharge the water from a tank or reservoir, a self-seating valve normallv closes the compressed air space of the tank &c. from the atmosphere and is operated, when the filling orifice of the tank is to be opened, so as to shut off admission of compressed air to the tank &c. and to open the latter to the atmosphere. As shown, a casing a is divided into two compartments d, e, communication between the compartments being normally closed by a spring-pressed valve f seating on a rubber ring g; water is supplied to the compartment d as required either by a hydrant connected to a spigot o normally closed by a cap p, or by hand through the top of the compartment which is normally closed by a hinged cover q and is provided with a screen t. A pipe n connects compartments e to the water tank b. Air supply to the tank b passes from pipe 2 through pipe 4 under control of the winged end x<2> of a valve x which at its opposite end controls air escape ports 5. To recharge the tank b with water, a spindle 6 is rocked by a handle 9, a tappet 8 thereon first acting through a spring-pressed plunger v to move the valve x to close the air supply to, and open the air escape from, the tank b; further movement causes a tappet 7 to move the valve f to admit water from the compartment d. A notched bar 10 is provided to lock the handle 9 in any desired position. Specification 185,519 is referred to.
Patent GB-945629-A (GB)
Title: Combined steam cracking and hydrodealkylation process
IPC: C10G69/06
Filed: 1962-05-30
Abstract: Naphthalene and/or benzene are obtained by hydrodealkylation at 1100-1600 DEG  F. of an aromatic concentrate boiling in the range 160-600 DEG  F. obtained by distilling the product of steam cracking a crude or catalytic cracking product boiling in the range 300-850 DEG  F.  The steam cracking is preferably effected at 1100-1500 DEG F. and 1-20 p.s.i.g. for 0.1-1 second using 50-90 mols. of steam per mol. of feed at a conversion to C3- of 20-60% wt.  Tetralins present are dehydrogenated to alkyl naphthalenes in the steam cracking.  The aromatic cut may contain both benzene and naphthalene or only naphthalene precursors. Dealkylation is preferably effected at 500-1000 p.s.i.g. for 2-120 seconds in a reaction zone having a length to diameter ratio of 40-150 : 1. Hydrogen-containing gas (at least 50% hydrogen) is initially supplied in a mol. ratio to alkyl aromatics of 1-6 : 1 and additional amounts of cool gas are added along the reactor to control the temperature below 1300 DEG  F., this additional amount being 2-15 mols. per mol. of alkyl aromatic.
Patent GB-583435-A (GB)
Title: Improved means of cooling food stuff and the like
IPC: F24F6/14
Filed: 1944-10-27
Abstract: 583,435. Refrigerating; cooling liquids. CLIMATOR, Ltd., and BERLOWITZ, E. (Representative of BERLOWITZ, M.). Oct. 27, 1944, No. 20942. [Classes 29 and 64 (i)] Foodstuff &c., in a container 2, Fig. 1, is cooled by evaporation of water or other liquid in a current of air or other gas in a tank 6 surrounding the container, the liquid being circulated by a pump 11 and the air supplied by a fan 7. The container is immersed in the liquid, which is forced by the pump 11 to spray nozzles 13 in the upper part of the tank and falls through the tank in contact with the air which leaves through a conduit 10. The container has a door opening to the outside of the tank 1. The incoming air may be cooled by passing through a pipe coil immersed in the liquid and issue through a nozzle above the surface of the liquid. In a modification, Fig. 5, the spray nozzles feed the liquid into vertical pipes 26 in the tank the air passing downwardly outside the pipes and upwardly through the pipes to the air outlet 28. A drier 60 may be provided for the air. The tubes may be filled with pieces of ceramic material supported by wire net at the bottom of the tubes.
Patent GB-966859-A (GB)
Title: Improvements in or relating to vibratory apparatus
IPC: B06B1/08
Filed: 1960-11-02
Abstract: 966,859. Magnetostrictive vibrators; wave couplings. CAVITRON ULTRASONICS Inc. Nov. 2, 1960 [Nov. 2, 1959], No. 20946/62. Divided out of 966,858. Heading H4J. A coupling member 5 having a working surface 7 is rigidly bonded at its opposite end to one end of a transducer 2 comprising a stack of thin magnetostrictive plates 2<SP>1</SP>, each having an arcuate cross-section and a length equal to one half-wavelength (or an integral multiple thereof) of vibrations at the operative frequency travelling longitudinally through the plates. A piezo-electric pick-up 25 gives an indication of the amplitude of vibration, and the frequency of the alternating current supplied to the energizing coil 13 may be adjusted to give optimum results. A fan 21 driven by an electric motor 24 blows cooling air over the transducer.
Patent GB-475981-A (GB)
Title: Improvements in or relating to gramophone records
IPC: G11B3/00
Filed: 1936-07-29
Abstract: 475,981. Gramophone records. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. July 29, 1936, No. 20981. Convention date, Aug. 16, 1935. [Class 40 (ii)] A gramophone record with lateral recording is arranged so that the surface of the ridge present between the grooves in the absence of modulation is not more than 1À66 times as great as the maximum amplitude of the grooves. The term " maximum amplitude " is defined as the maximum deviation of the grooves from the zero line. As a result of this relationship, the ridge generally lying between two grooves will be cut away in the case of large amplitudes so that adjacent grooves either abut, or intersect each other, as shown on the right-hand side of the Figure. The record may be rotated at the usual speed of 78 revolutions per minute, or, by a suitable reduction in the width, depth, and pitch of the grooves, and of the amplitude, as compared with usual records, it may be rotated at 33<1>/3 revolutions per minute. In the preferred arrangement, the width 7 of the grooves, and the width 8 of the ridge lying between two grooves (in the absence of modulation) may be reduced to about 40 to 50 Á, the maximum amplitude is approximately 30 to 35 Á, and the depth 9 of the grooves is about 25 Á. The width of the grooves may be made equal to the maximum amplitude of the grooves. The front angle 10 formed by the flanks of the cutting stylus may be 45‹.
Patent GB-1245031-A (GB)
Title: Stereophonic gramophone pickup
IPC: H04R11/08
Filed: 1969-04-24
Abstract: 1,245,031. Stereophonic pick-ups. PICKERING & CO. Inc. 24 April, 1969 [30 April, 1968; 29 Jan., 1969], No. 21078/69. Heading H4J. A stereophonic pick-up (Fig. 5) comprises a supporting structure carrying a quadrangular cluster of four polepieces 33, 34, 46, 47 (Figs. 2, 7) which define a common space. A tubular armature 93 of high permeability material is pivotally mounted at one end outside the common space for movement of the opposite end within the common space. A permanent magnet 66 is mounted on the supporting structure and is magnetically coupled at one of its poles to the pivotally mounted armature 93. Its other end is remote from the magnetic circuitry. Relative motion between the permanent magnet 66 and armature 93 in the region of magnetic coupling is small and the armature 93 is maintained in a substantially uniform and constant state of magnetic saturation. The armature 93 is preferably mounted and damped by a flexible collar 94 of natural or synthetic rubber. Two magnetic circuits are provided, one for each channel. The right-hand channel circuit comprises polepiece 46, leg 44, coupling member 53, core member 31, coil 38 and polepiece 33. The left hand channel circuit comprises polepiece 47, leg 45, coupling member 53, core member 32, coil 40 and polepiece 34. A " shorted turn " non-magnetic member 35 for reducing cross-talk and providing a relatively flat frequency response electromagnetically couples the core members 31, 32 beneath the coils 38, 40 and may have two holes as shown or a single large hole (Fig. 13, not shown). An earthing strap 61 connects the magnetic circuits to a shielding casing 85. The quadrangular cluster of polepieces need not be in rightangled configuration (Fig. 12, not shown). The permanent magnet 66 may be cemented in position or its channel housing (Fig. 11, not shown) may be provided with a window (200) in the base of the channel and a wall (201) at the front of the channel. The magnet is inserted between the wall (201) and the base and held by projections (202, 203). A removable stylus assembly comprises a tubular casing 88 of non-magnetic material having a handle 90 which provides positive location relative to the shielding casing 85. A springy metal tie wire 95 between the easing 88 and armature 93 allows pivoting of the armature 95. The pick-up supporting structure is in two moulded interfitting parts, the first part accommodating the magnetic circuit arrangements apart from the permanent magnet which is accommodated in the second part (Fig. 3, not shown).
Patent GB-441285-A (GB)
Title: Detector arrangement for wireless receivers more particularly for television purposes
IPC: H01F19/04
Filed: 1934-07-19
Abstract: 441,285. Valve circuits for wireless reception. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. July 19, 1934, No. 21084. Convention date, July 19, 1933. Addition to 435,417. [Class 40 (v)] In a push-pull detector for high modulating frequencies such as used in television according to the parent Specification the grid circuit is highly damped. The damping resistances 4, 5 have minimum self capacity and the detector is a screen-grid valve with a pair of control grids arranged to have minimum self capacity. The natural frequency of the coil 3 is preferably that of the unmodulated carrier wave while the damping resistances 4, 5 are earthed at the centre and of a value equal to approximately 1/10th of the grid leak resistances 8, 9.
Patent GB-460297-A (GB)
Title: Improvements in or relating to electric capacity-controlled devices applicable for indicating the approach of a body
IPC: G08B13/26
Filed: 1935-07-25
Abstract: 460,297. Indicating proximity of bodies. ALEXANDRA. A. C. July 25, 1935, No. 21104. [Class 40 (v)] A valve oscillator of the kind in which the period of oscillation is determined mainly by the values of resistance and capacity has at least a part of the capacity in the form of a capacity responsive element adapted to change its capacity in response to movements of a body in its vicinity so as to cause a change in the current in the oscillator circuit and thereby operate a relay. Two valves a, b each have a resistance R1, R2 between grid and cathode. The grid of each valve is coupled to the anode of the other valve by a condenser C1, C2. The anode circuits comprise resistances R3, R4 and batteries Ba, Bb. The capacity response element may be connected across either of the grid circuit capacities and preferably forms the whole or a large proportion of one of these. A relay is included in either anode circuit. The invention is applicable for giving warning of the approach of a person to a safe &c. for the opening and closing of doors, and for advertising in shop windows by causing the illumination of an article on the approach of a customer. Automatic signalling in response to the passage of a railway train or other vehicle may be effected by suspending a wire or other conductor above the track so that the passage of a vehicle causes a large increase in its capacity to earth.
Patent GB-741053-A (GB)
Title: Improvements in and relating to the manufacture of steel
Inventor: RAIT JOHN RHYNAS
IPC: C22C38/58
Filed: 1952-08-22
Abstract: An austenitic, age-hardenable alloy steel has the following composition:- .C.0.3- 0.9.per cent, .Si.0.2- 2.0.per cent, .Mn.6.0-20.0.per cent, .Cr.0- 8.0.per cent, .Ni.0-12.0.per cent, .V.1.0- 4.0.per cent, .Fe, and unavoidable impurities, the.. .remainder... The Mn, Cr and Ni contents do not exceed 28 per cent in total The alloy may also contain up to 10 per cent in total of one or more of the elements Mo up to 5.0 per cent, W up to 5.0 per cent, Nb and/or Ta up to 5.0 per cent, Ti up to 5.0 per cent, Al up to 2.0 per cent, Zr up to 2.0 per cent and Be up to 2.0 per cent. One or more of the elements Co up to 5.0 per cent, Cu up to 6.0 per cent, N up to 0.25 per cent and B up to 0.5 per cent may also be present. Precipitation may be carried out at 300 DEG  C.-950 DEG  C., preferably after solution treatment at 1000 DEG  C.-1300 DEG  C.  The Provisional Specification describes also alloys in which Mn is present in the range 0.5-20.0 per cent and V 0.5-6.0 per cent, the maximum content of Ni being 20.0 per cent, of Co 10.0 per cent, of N and B 5.0 per cent.
Patent GB-479287-A (GB)
Title: Improvements in and relating to the cold-rolling of metal strip
IPC: B21B5/00
Filed: 1936-07-30
Abstract: 479,287. Cold rolling. CHRIST, H. July 30, 1936, No. 21148. Convention date, Aug. 17, 1935. [Class 83 (iv)] In cold rolling an endless metal strip between rolls 1, the strip is pulled through the mill by a tensioning drum 4 and braked by another drum 3, the frictional grip of the drums on the strip is increased by roller &c. chains 6 which are tightened by lovers 7 and adjustable weight S, so that a free loop of the strip can be developed extending down below the floor level and dipping into a cooling and washing and lubricating fluid. A shears may also be provided there. The two drums are arranged as close together as possible. The drums are driven by electric motors, one acting as a dynamo to generate assisting current for the other. A welder 5 may be provided to join the strip ends together. The strip may also be held to the drum surface by endless chain or laminated bands adj ustably pressed to the drums by mechanical or electromagnetic forces. The pressing chains &c. can either be swung clear of the drums or have an opening therein for the strip. The pass adjustment of the rolls may be controlled by a device which measures the thickness of the strip (no details). Means for measuring the tensile forces in the strip may also regulate both the adjustment of the rolls and the tensile forces.