baber/WOPTO huggingface dataset:
Patent GB-843800-A (GB)
Title: Improvements in or relating to methods of treating bodies of material so as to controla solid-liquid interface therein
IPC: H01L35/00
Filed: 1958-01-14
Abstract: <PICT:0843800/III/1> <PICT:0843800/III/2> <PICT:0843800/III/3> In a method of treating a body of material in which there is a solid-liquid interface, the material being such that its resistivity in the solid phase at its melting point is not greater than 10 ohm-centimetre and its Peltier co-efficient between the liquid and solid phases at the interface is at least 0.005 volts, the position or rate of motion of the interface is controlled as desired by reason of the Peltier heating or cooling produced at the interface by the passage therethrough of a direct current of suitable magnitude and direction.  The material may be a semi-conductor, such as germanium. In a zone-melting process (Fig. 1) a current is passed through interfaces 5 and 6 between a molten zone 4 and solid portions 7 and 8 by means of leads 9 and 10.  In a process where a crystal 19 (Fig. 2) is grown on a seed 15 drawn from a melt 17, a current is passed through interface 20 by means of leads 21 and 22.  A component of motion of the interface toward the negative pole of the current source is obtained when the Peltier co-efficient is positive, and toward the positive pole when the Peltier co-efficient is negative. The rate of movement of the interface may be changed by changing the magnitude and/or the direction of the current, and when semi-conductor material containing acceptor and donor impurities is treated P-N and N-P junctions may be obtained.  The effect of Joule heating may be kept constant by including an alternating current component and maintaining the sum of the alternating and direct currents constant.  In another embodiment a direct current is passed through a germanium bar 40 (Fig. 6A) on which is placed an aluminium wire 43, so that the bar is heated sufficiently for a molten zone to appear where the aluminium alloys with the germanium and lowers its melting point, and the molten zone travels along the bar towards the negative pole of the current source.  Specifications 727,678, 769,673 and 769,674 are referred to.
Patent GB-766559-A (GB)
Title: Improvements in or relating to continuously variable electric inductance devices
Inventor: RICH CHARLES WILFRED
IPC: H01F21/00
Filed: 1954-01-15
Abstract: 766,559. Inductors. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 4, 1954 [Jan. 15, 1954], No. 1328/54. Class 38 (2). A variable electric inductor comprises a helical coil 3 of bare wire wound on an insulating drum 1 and an elongated flexible bare conductor 7 wound on a parallel metal drum 5, the inductance of the coil 3 being altered by winding the conductor 7 from the drum 5 on to the drum 1 between the turns of the coil 3, thereby shortcircuiting them. The flexible conductor 7 is preferably in the form of a helical spring. Connections to the coil 3 are made by way of stub shaft 2 and brushes 4. The turns of the conductor 7 on the drum 5 are short-circuited by the metal of the drum, thereby eliminating undesired stray inductance and capacity effects. In a modification a metal jockey wheel is provided to short-circuit two adjacent turns of the coil 3 just ahead of where the conductor 7 begins to bridge the turns.
Patent GB-950933-A (GB)
Title: Improvements in or relating to recording devices
IPC: G08C21/00
Filed: 1963-01-11
Abstract: 950,933. Reservoir pans for graphic communication devices. P. G. S. MERO. Jan. 11, 1963 [Jan. 11, 1962], No. 1457/63. Heading B6P. In a graphic communication receiving station, the movement of the pen 18 in the x and y directions is controlled respectively by servomotors 31 and 27 receiving the signals from a similar transmitting station having similar servomotors. An auxiliary reservoir 41 is mounted on the pen arm 17 for movement with the nib 21 so that inertia forces cannot upset the flow of ink to the nib from the auxiliary reservoir via conduits 48 and 47. The auxiliary reservoir is replenished from a supply 43 under control of a valve 51, during the time that the pen is stationary and a fresh part of the paper web 12 is being wound on to the platen 11. The valve 51 is electromagnetically operated and is under the control of the paper feed control. Specifications 677,177, 678,469, 686,599 and 702,058 are referred to.
Patent GB-736823-A (GB)
Title: Engine combustion chambers
Inventor: JACKSON SQUIRE RONALD
IPC: F23R3/14
Filed: 1953-01-19
Abstract: 736,823. Generating combustion products under pressure. LUCAS (INDUSTRIES), Ltd., J. Jan. 18, 1954 [Jan. 19, 1953], No. 1463/53. Class 51 (1). In an annular air-jacketed type of combustion chamber for a jet propulsion engine or gas turbine engine, comprising an annular flame tube a, b mounted between inner and outer casing walls c, d, a number of equi-spaced fuel nozzles f being disposed in the inlet end wall of the flame tube, oppositely-inclined air nozzles k, n are provided in the inner and outer walls of the flame tube between the fuel nozzles, the air nozzles producing a swirling ring of air around each of the fuel jets. The end wall of the flame tube is formed of a number of segmental parts e. Each plate is formed with a frusto-conical dished recess and has air swirling vanes g disposed around the fuel injector f. Air inlets j, m are provided in the inner and outer walls of the flame tube and the air nozzles k, n project through the inlets.
Patent GB-892825-A (GB)
Title: Improvements in or relating to electric control circuits
Inventor: ESSEX-CROSBY ERNEST ATHOLSTAN
IPC: G05D23/24
Filed: 1959-01-15
Abstract: 892,825. Automatic temperature-control systems. PLESSEY CO. Ltd. Feb. 26, 1960 [Jan. 15, 1959], No. 1476/59. Class 38 (4). A control circuit for maintaining constant the temperature of a heater element 1 energized from an A.C. supply 2 comprises a control winding 9 magnetically coupled via a toroidal core 7 to a first coil 6 connected in series with the element 1 and to a second coil 8 connected in parallel with the element 1, the arrangement being such that the coils 6 and 8 produce no resultant magnetic flux in the core 7 when the temperature of the element is at a predetermined value. The winding 9 is connected to a magnetic amplifier 11 which can produce an output signal to operate a relay 12 connected to operate a switch 13 in the circuit energizing the element 1. In operation, on a change of heater resistance the ampere turns set up in the coil 8 remain constant whilst those in the coil 6 change, and a flux will be set up in the core 7 thereby inducing an e.m.f. in the coil 9 which e.m.f. is fed into the amplifier 11. The amplifier output actuates the relay 12 to cause the switch 13 to open so as to cut-off the current supply to the element 1 thereby allowing the latter to cool down. A time delay device 14 is so arranged that the relay, when de-energized, is held off for a preset time period of two to nine seconds to allow the element 1 to cool sufficiently before the relay is restored to the " on " position.
Patent GB-870354-A (GB)
Title: Improvements in temperature measuring arrangements
IPC: G01K1/14
Filed: 1959-01-15
Abstract: 870,354. Thermocouple arrangements. SUPERHEATER CO. Ltd., and RAINBIRD, N. C. March 31, 1960 [Jan. 15, 1959], No. 1530/59. Class 40 (1). To measure the temperature, e.g. of a superheater tube a mineral insulated thermocouple cable 6 is led through a sheath tube 7 welded to the tube or to a further tube 8 butt-welded to the thermocouple tube 1 and through a passage 4 bored in the built-up side 2 of the tube 1. The hot junction 11 is welded in position in the slot 3 milled in the built-up portion which is made of weld material and a sheath 13 which covers the cable between the sheath tube and the built-up portion is welded to the tubes. As an alternative, tube 1 may be an eccentric tube initially and the cable is threaded through an axial hole drilled in the thick wall up to a transverse slot in which the hot junction is welded.
Patent GB-1070092-A (GB)
Title: Semi-conductor device and manufacture thereof
Inventor: CARTER VICTOR JOHN
IPC: H01L23/02
Filed: 1965-01-14
Abstract: 1,070,092. Semi-conductor devices. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Dec. 21, 1965 [Jan. 14, 1965], No. 1630/65. Heading H1K. A semi-conductor device such as a siliconcontrolled rectifier comprises a semi-conductor element 2 mounted on a copper base 1 and a heavy current conducting member 7 urged into contact with the element 2 by a stack of springs 6 maintained in compression by a barrel member 5 screwed into a ring 4 secured to the base 1. The ring and barrel may be made of steel. The device is encapsulated in a housing comprising a ceramic cylinder 20 and metal sealing portions 21, 22, and is evacuated through bores 16, 17 in the base and ring which are subsequently sealed by a copper pin 18. Alternatively the device may be evacuated, at least in part, through the ceramic sealing sleeve 15 of the lead 3 which is connected under spring pressure to the gate electrode. A desiccant ring is provided.
Patent GB-1124811-A (GB)
Title: Modifications in the production of crystalline ammonium phosphates
Inventor: SUCH JOHN EDWARD
IPC: C01B25/40
Filed: 1965-01-14
Abstract: The process of Specification 1,020,182 for the production of crystalline ammonium phosphates is modified in that it is not necessary to remove the tarry matter from the input of ammonia which reacts with the wet process phosphoric acid.  The apparatus is kept at a suitable temperature to ensure that the tarry matter is maintained in a fluid form.  When the process employs gaseous NH3 the tarry matter is removed prior to the cooling of the reaction products.  Phosphoric acid of up to 60% by wt. gives good results.
Patent GB-1057103-A (GB)
Title: Method and apparatus for manufacturing spring units incorporating elastomer bodies as the spring component, and spring units manufactured thereby
IPC: F16F1/54
Filed: 1964-01-14
Abstract: 1,057,103. Moulding spring units. H. J. NEIDHART, and R. NEIDHART. Jan. 14, 1964 [Jan. 21, 1963], No. 1639/64. Heading B5A. [Also in Division F2] Rubber bodies for spring units (see Division F2) are moulded by a press having two continuously refrigerated press plates adapted to coact and squeeze the bodies of elastomer into a predetermined deformed shape and at the same time to cool them in said deformed shape to below the second order transition temperature which freezes the bodies rigidly in said deformed shape. The faces of the platens may be provided with removable liners in the form of thin foil sheets to avoid premature cooling of the rubber body and to prevent the rubber sticking to the platen.
Patent GB-213363-A (GB)
Title: Improvements in or relating to carbonisation and/or gasification of fuels
IPC: C10B1/04
Filed: 1923-01-18
Abstract: 213,363. Davies, W. E. Jan. 18, 1923. Coking processes.-The charge is divided into zones or stages and heated externally or internally on one side only, and the distillation products are withdrawn separately from each stage from the cooler side of the retorts. Gases such as flue gases, steam, hydrogen, oxygen, air, inert gases, carbon dioxide, carbon monoxide or hydrocarbons may be introduced and the heating may be a combination of external and internal means. The heating wall serves to preheat the gases introduced which are passed transversely across the charge, the combustion gases being used first for external heating and then for internal heating by passage through the charge. In addition to a pre-drying zone a zone of preliminary intensive heat treatment is employed to facilitate coking and to which pitch or tar may be supplied. The vapours from the first stage of 450 to 600‹ C. are forced downwards into and cracked in the bottom part of this zone and in a second stage of 550 to 750‹ C. a. coked mass is obtained which passes into the third stage in which superheated steam is used to generate water gas. In a fourth stage a lower grade water gas is obtained which may be used for heating the retorts. Suitable apparatus comprises two retorts 1 with heating zones 3, 3<a>, 3<b> and enclosing with their non- heated sides gas offtakes 2, 2<a>, 2<b>. Gas and air for combustion enter by openings 4, 5 respectively and the combustion products pass through flues 6 to flues 7, 8 a portion of the gas passing through inclined openings 9 through the charge to the outlets 10 and the waste gases from flue 8 are led to the chimney. The extraneous gases passed through the retorts take the same path as the heating gases. Specifications 136,880 and 165,825 are referred to.
Patent GB-1073864-A (GB)
Title: Arrangement for blowing reactive substances into metal melts
Inventor: RUTTIGER KARL
IPC: C21C7/10
Filed: 1966-01-13
Abstract: In apparatus for the vacuum degassing of molten metal of the type in which portions of the metal are caused to pass into a vacuum vessel by the rise and fall of the latter there is also provided means for adding reactive materials, said means consisting of a pressurized reservoir connected to a lance of sufficient length to extend to below the nozzle of the vacuum chamber when the latter is in its lowered position.  The reservoir and lance may be mounted on a movable carriage by means of which the lance may be withdrawn from the bath.
Patent GB-1449918-A (GB)
Title: Liquid dispensing nozzle
IPC: F16K21/20
Filed: 1974-01-14
Abstract: 1449918 Dispensing liquids DOVER CORP 14 Jan 1974 [15 Jan 1973] 01689/74 Heading A4T A dispensing nozzle, e.g. for petrol, comprises aspout 14, a vapour recovery passage 37, and means for forming a seal between a filling opening 34 and the recovery passage during dispensing, which means comprises disc 27 for engaging the end of a filling pipe 35 and a part-spherical surfaced member 22, urged towards a collar 32 on the spout 14 e.g. by a bellows 20 or a spring 93, Fig. 6. On inserting the spout 14 into the opening 34, the disc 27 is pushed back from engagement with a surface 33 of the collar 32 by engagement with the pipe 35, and a step 39 of the collar 32 may be retained by a lip 40 of the opening 34. An extension 25 of a plate 26 on the disc 27 seals against the member 22, which may be integral with the bellows 20, and vapour is recovered through the passage 37 via the interior 36 of the bellows 20. Alternatively, Fig. 6, a portion 96 of the partspherical member 92 may sealingly engage the spout 83, the spring 93 urging the member 92 and disc 27 towards the collar 32, and an aperture 91 may lead to the vapour return passage 89 via a tube 88. In modifications, Figs. 3-5 (not shown), the extension 25 may have a groove (49) holding a sealing ring (50) for co-operation with the member 22, or the disc 27 and plate 26 may be replaced by a single member (68) reinforced by a support member (67).
Patent GB-981984-A (GB)
Title: Improvements in and connected with electric plugs
Inventor: BUTCHER ERIC JAMES
IPC: H01R13/415
Filed: 1963-01-15
Abstract: 981,984. Two-part couplings. J. A. CRABTREE & CO. Ltd. Jan. 13, 1964 [Jan. 15, 1963], No. 1743/63. Heading H2E. The flat pins 1 of a plug, such as a 3-pin plug, are located in the body by shoulders 4 and retained by pressing or punching portions of them outwardly. As shown, the central parts only of further shoulders 9 are punched over, the punch being introduced into slots 6a in ledges on which the shoulders 9 rest. The latter are undercut to a V-shape to facilitate the punching operation. Each pin is tapped at 3 to receive a terminal screw.
Patent GB-328204-A (GB)
Title: Improvements in devices for operating valves from a distance
IPC: F16K31/46
Filed: 1929-01-18
Abstract: 328,204. Horstmann, B. G., Horstmann, J. H. G., and Horstmann, F. O. Jan. 18, 1929. Actuating-mechanism. - A distant control arrangement, of the Bowden mechanism or like type, for operating gas and other valves comprises a valve body 2, Fig. 4, with rotary plug cook 1 and an integrally formed slide way 7 housing a sliding element 6 adjustably connected by a single or stranded control wire 10 to a similar sliding element 21, Fig. 2, of a distant hand-switch control-device 16, 17, Fig. 3; the wire is enclosed in a coiled-wire, flexible sheathing secured to the valve body by a clamp 9 and to the control casing 22, the arrangement being capable of transmitting both push and pull movements without spring aid. The sliding elements 6, 21 are connected by pins 4, 19 to slotted arms 3, 18 on the rotary plug cock and on the rotary switch device, respectively. The control wire 10 with its coiled wire sheathing 8 is preferably encased in a covering x of heavy non-springy ductile metal, such as lead or lead composition, sufficiently thick to deaden completely the normal resiliency of the sheathed wire without preventing flexibility whereby it will retain any position or bends given to it. The valve may provide for various degrees of opening, or may govern a plurality of burners in stages.
Patent GB-470914-A (GB)
Title: Improvements in and relating to colour photography and cinematography
IPC: G03C7/22
Filed: 1936-01-20
Abstract: 470,914. Colour photography. EVANS, J. Jan. 20, 1936, Nos. 1761 and 11336. [Class 98 (ii)] In a process in which material comprising at least two emulsion layers on a transparent support and differently colour-sensitized is exposed through one side to form latent images in each layer, both of the layers or at least two are prior to exposure bodily dyed, the colour of one layer being complementary, to the colour of the image record therein and the exposed material is subjected to reversal development and processing comprising mordanting and bleaching of a bodily dyed layer and the application of dye to a pre-dyed or undyed layer not already of a, colour complementary to the colour of the image record therein, to impart that colour to the reversed images of the layer. Two-colour material comprises a blue-green panchromatic emulsion layer and a yellow orthochromatic layer on the same or opposite sides of the support. Three-colour material comprises an uncoloured green - sensitized emulsion on one side of a support and superimposed panchromatic emulsions on the other side of the support dyed respectively yellow and blue-green. A separating layer of gelatine hardened by formaldehyde may be placed between adjacent emulsions. Suitable dyes are Auramine, Rhodamine, Acronal Blue' and Malachite Green. The two layer film, after exposure, is developed by reversal, washed, fixed and treated with a mordanting and bleaching solution containing copper sulphate, potassium thiocyanate, potassium citrate and acetic acid. The yellow layer is treated by a bath or rollers with magenta dye to change the colour of the reversed image therein from yellow to red. The three-layer film is similarly treated, the undyed green sensitized layer being finally dyed magenta. The positive film may be printed on similar material of slower speed or may be used to produce colour component negatives by means of filters. Colour component pictures produced by apparatus comprising two or more lenses, reflectors, or prisms and filters, which may be spaced in the space of an ordinary kinematograph film frame, may be printed on to such material. Before printing the colours of multicolour records may be enhanced by toning the silver images magenta. Multicolour screen films may be printed by projection, preferably with reduction, or by contact, on to films according to the invention.
Patent GB-841629-A (GB)
Title: End stop for sliding clasp fasteners, and a method and device for producing and mounting the same
IPC: A44B19/60
Filed: 1957-01-17
Abstract: 841,629. Making sliding-clasp fasteners. OPTI-WERK G.m.b.H. & CO. Jan. 17, 1957 [Jan. 17, 1956], No. 1783/57. Class 83 (2). [Also in Group XXV] A sliding clasp fastener is provided with an end stop which is tapered at one end 2, Fig. 1, and has two tips 3, 4 at its other end formed by cutting away a segment having the same shape as the tapered end; the end stop being bent around an initial clasp member of the fastener. A flat metal strip is fed to a cutting and bending punch 9, Fig. 9, which severs blanks therefrom, shaped as in Fig. 1, by consecutive cuts, and further lowering of the punch 9 bends each blank about the broken lines shown in Fig. 1 to U-shape; the central part 5 being supported in a slot 10 of a bending tongue 11. Beneath this tongue a clinch-plate 14 is disposed having a shallow groove containing the wire spiral 6 and the associated stringer tape 7 of a sliding clasp fastener. The side-faces 11a of the bending tongue extend upwardly to embrace a clinch punch 13 having a plane lower face 13a and side projections with sloping lower edges 11b which cam against similarly sloping upper edges of the faces 11a. After formation of the U-shape blank the clinch punch is lowered, thereby causing the bending tongue 11 to be cammed out of engagement with the blank, and presses the blank against the groove of the clinch-plate. 14, causing it to encircle and grip the end of the wire spiral ; the teeth 3, 4 passing through the tape 7 and embracing the end 2 of the blank. A stop 16 provided in the clinchplate groove correctly locates the end of the spiral relative to the blank. Before cutting and bending, the wire strip may be lacquered to match the colour of a plastic wire spiral; the lacquer being suitable to withstand the bending and rolling processes.
Patent GB-883260-A (GB)
Title: New polyepoxyesters
IPC: C07D303/48
Filed: 1960-01-19
Abstract: The invention comprises poly (2,3-epoxyalkanoyloxy) alkanes wherein no more than one 2,3-epoxyalkanoyloxy radical is monovalently bound to any one carbon atom constituting the alkane chain.  Specified compounds are pentaerythritoltetrakis (2,3-epoxy-2-ethylhexanoate) and 1,1,1 - trimethylol propanetris (2,3 - epoxy - 2 - ethylhexanoate).  The novel compounds may be made by reacting peracetic acid with the poly (a ,b -olefinic) esters of such polyhydric alcohols as pentaerythritol, trimethylolalkanes and polyhydroxycycloalkanes, as described in the parent Specification. Examples described the esterification of 1,1,1-trimethylolpropane or pentaerythritol with 2-ethyl-2-hexenoic acid under reflux in toluene in the presence of p-toluene sulphonic acid, and the epoxidation of the esters so formed with peracetic acid in ethyl acetate.
Patent GB-938568-A (GB)
Title: Improvements in or relating to vehicle ash trays and like receptacles
IPC: B60N3/08
Filed: 1960-01-19
Abstract: 938,568. Smokers' ash trays. D. J. BATTERSBY. Jan. 18, 1961 [Jan. 19, 1960], No. 1858/60. Class 130. [Also in Group XXXII] An ash-tray 10 is slidably supported in V- shaped slides 18 by a plastic slide 13 secured by rivets to the tray. A plate spring 15 may urge the slide 13 outwardly or the slides 18 may be of spring material.
Patent GB-228004-A (GB)
Title: Improvements in locking devices for sliding windows
IPC: E05F11/00
Filed: 1924-01-24
Abstract: 228,004. Daimler Co., Ltd., and Bush, A. E. Jan. 24, 1924. Clips, lever. - A holder for sliding windows of vehicles comprises a pad C mounted on the top rail B2 of the door or vehicle side and a pad D mounted on a spring strip E on the inside of the window, so arranged that the glass A of the window can be gripped between the two pads. The strip E is secured to a flange F<2> on a housing F in the inner panelling B<3> of the door or vehicle, and is pressed to engage the window by a cam lever H pivoted at H<2> to the housing and acting through a plunger G. The plunger G is adjustable in length by the provision of a screw G<3> at one end.