baber/WOPTO huggingface dataset:
Patent GB-1006657-A (GB)
Title: Improvements in or relating to radiant heaters
Inventor: LANE RICHARD JOHN
IPC: F24C7/06
Filed: 1961-09-15
Abstract: 1006657 Electric fires GENERAL ELECTRIC CO Ltd 17 Sept 1962 [15 Sept 1961] 33179/61 Headings F4W and W45D A radiant heater comprises a heating element 1 in a tube 2 of refractory material mounted on a reflector 3 which is mounted on a casing 4  provided with a terminal box. Reflector 3 is detachably mounted on casing 4 by clips 15, each comprising a pair of spaced legs 16 engaging guides on the rear face of reflector 3 to permit longitudinal movement of reflector 3 relative to casing 4. The guides are formed by the turned-over ends 17 of stay 18 rivetted to reflector 3. Legs 16 may be braced apart to prevent inadvertant release of the reflector from the casing. Tube 2 is supported so that the reflector may move longitudinally with respect to the tube by the ends of the tube 2 being a sliding fit in ceramic socket members 7 supported in holes 11 in reflector 3 by spring clips 12. The ends of element 1 terminate in connectors 6 from which leads run to the terminal box. In a modification, Fig.4 (not shown), instead of clip 15 a pair of separate legs is provided, one of which may be pivotably mounted on the casing, their free ends being braced apart.
Patent GB-1305891-A (GB)
IPC: H04B7/12
Filed: 1962-08-30
Abstract: 1305891 Radio signalling L BOLKOW 30 Aug 1962 [31 Aug 1961] 33423/62 Heading H4L In a system for radio transmission of guidance commands from a control station to a body moving under automatic control (e.g. a missile), the control station transmits two synchronously keyed carrier frequencies having a frequency difference equal to the I.F. of the receiver, each carrier frequency being modulated by a modulating frequency which can be adjusted by a control device in accordance with the command signals to be transmitted, and the modulated carrier frequencies are passed through a filter to a broad band aerial from which they are radiated to the body. Each control position comprises two transmitters TF 1  and TF 2 , Fig. 1, operating at frequencies f 1  and f 2  respectively and frequency modulated by modulation generators MF 1  and MF 2  which are controlled by a hand-operated joy-stick K in accordance with the observed deviation of the missile in elevation and in azimuth from its "on target" track. The transmitters are pulsed by a control unit 3, for example to transmit for a period of 35 microseconds every tenth of a second, and the outputs of the transmitters pass through filters F 1  and F 2  respectively to a broad band circularly polarizing transmitting aerial A. At the receiver, Fig. 2 (not shown), signals pass from a dipole aerial to a mixer and an I.F. amplifier tuned to frequency f 1 -f 2 . After amplification and demodulation the original modulating frequencies are recovered and separated in a filter unit and processed to control the missile in azimuth and elevation. The receiver is gated, for example by a monostable multivibrator, so that after being initially triggered the receiver is only operative at times corresponding to the transmission times of its control position, for example for periods of 50 microseconds every tenth of a second. Simultaneous operation of several control stations L I -L IV , Fig. 1, may be controlled by a synchronizing pulse generator 20 which operates the respective control units 3 through delay lines 21-24.
Patent GB-365232-A (GB)
Title: Improvements in or relating to plate-shaped elements for dry rectifiers
IPC: H01L29/00
Filed: 1930-11-06
Abstract: 365,232. Static contact rectifiers. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Nov. 6, 1930, No. 33432. Convention date, Nov. 9, 1929. [Class 37.] In a dry rectifier element in which both sides of a plate, e.g. copper, are provided with a layer of oxide and a coating of sprayed metal, the metal coating surrounds the edges of the plate, the two sides and edges of the plate being given an insulating coating over the oxide layer and under the metal layer at the periphery of the plate. The intermediate layer may be produced by the application of a lac containing ethyl-cellulose or acetylcellulose as its main constituent and an ester or ketone as a diluting medium.
Patent GB-807141-A (GB)
Title: Improvements in or relating to writing instruments
IPC: B43K24/08
Filed: 1956-11-02
Abstract: 807,141. Reservoir pens. FENGLER, H. Nov. 2, 1956 [Nov. 5, 1955, June 23, 1956], No. 33456/56. Class 146(3) In a retractable reservoir pen of the kind in which the writing unit g, shown as ball-point pen, is urged to retracted position by a spring e, the rear end of the unit g fits in a socket of a plunger h having a small diameter extension h<SP>2</SP> to which an operating knob i is fixed. Rotatable on the extension h' is a sleeve k with slots o at its ends accommodating balls m, n projecting outwardly from 'the sleeve. Fixed to the cap d of the pen is a member p shown developed in Fig. 2, through which the sleeve k passes, and having teeth q at its upper edge and alternate shallow and deep slots t, s at its lower end. With the pen in writing position the balls n engage the slots t. To retract the pen, the knob i is depressed to release the balls n and cause the balls m to engage the teeth q. The latter engagement causes the sleeve k to be rotated until the balls n are in axial alignment with the deep slots s so that when the knob i is released, the balls n move into the slots s and the pen g is retracted under the action of the spring e. A further depression of the plunger i causes the balls n to enter the slots t and thus hold pen in projected position.
Patent GB-426666-A (GB)
Title: Improvements in or relating to metal clad vapour electric converters
IPC: H01J13/32
Filed: 1933-11-30
Abstract: 426,666. Metallic-vapour converters. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GALLIZIA, E., c/o General Electric Co., Witton, Birming- ham. Nov. 30, 1933, No. 33598. [Class 39 (i)] In a metal-clad vapour electric converter, the walls of the anode arms are conductively connected to an electric supply and act as heating resistors, to warm the converter when under light loads. Alternating current may be used, and the main body may be heated by induction from the currents in the anode arms. In the polyphase converter shown, adjacent arms such as 10, 11 are connected through step-down transformers 19, 20, 21 to the phases of a three-phase supply. The rotating field produced heats the main body 25 by induction. The arms may be of thin magnetic material, and the heating current in each arm may be in the opposite direction to the corresponding arc stream, so that the unsaturated material of the arm acts as a screen shielding the arc stream from the magnetic fields due to the currents in other arms. When using direct or alternating current, the currents in adjacent arms are in opposite directions so as to prevent magnetic interference.
Patent GB-457077-A (GB)
Title: Improvements in and relating to regenerative furnaces
IPC: F28D17/00
Filed: 1935-12-05
Abstract: 457,077. Regenerative furnaces. STEINHEISSER, M., 61, Dusseldorfer Chaussee, Duisberg, Germany. Dec. 5, 1935, No. 33769. Convention date, Dec. 11, 1934. [Class 51 (i)] The gas and air supply ports of a regenerative furnace, more particularly for burning unheated gas with preheated air, comprises a main central air duct c, a gas duct b which leads from below into the duct c at an angle of 90‹ or less and lateral ducts e adapted to deliver air into the gas and air mixture leaving the duct c. The air is preheated in a regenerator which may be divided by a vertical wall f into chambers g and h serving to heat the air supply to the main duct c and to the lateral ducts e respectively. The chambers are connected to a common duct l by inlet and discharge openings i, k controlled by valves n, o.
Patent GB-619560-A (GB)
Title: Improvements in or relating to socket members for electrical pin-plug and socket connections
IPC: H01R13/631
Filed: 1946-11-14
Abstract: 619,560. Two-part couplings. BRITISH MECHANICAL PRODUCTIONS, Ltd., FUKE, F. C., and SHOREY, L. W. Nov. 14, 1946, No. 33866. [Class 38 (i)] The socket member of a rectangular-pin plug- and-socket device has a cover-plate with rectangular openings 1, 3 for earth and live pins, the former having curvilinear countersinking 2 and the latter having rectangular countersinking 4. The countersinking 2 may be spherical or of truncated conical form having an apical angle of 120 degrees. Specification 612,862 is referred to.
Patent GB-900018-A (GB)
Title: Collar connection
IPC: A41B3/02
Filed: 1958-10-23
Abstract: 900,018. Buttons. SCHAFER, J. V. Oct. 23, 1958, No. 33969/58. Class 43. A button 7 has an offset portion 10 to which are secured the two ends of a resiliently flexible element 8. The ends are secured in one or two recesses in the offset portion which may have two vent holes 13 which allow escape of plating solution deposits. The loop may comprise a coiled spring. A strip of material such as nylon may be placed inside the loop to limit the extension of the loop, the ends being secured by balls pressed within the end coils of the loop, the ends of the strip being bonded to the ends of the loop. Alternatively, the ends of the spring may be secured by projections at 74 formed on a partition in the portion 10 and the ends of the strip may be secured by formations at 75 or one end may be secured by a ball in the end of the coil. One end of the strip may be secured by a ball part way along the length of the spring. To allow for one part of the loop being extensible the other part being inextensible, both ends of the strip are secured to balls 76 spaced from the portion 10. The ends of the strip may be knotted or folded over the ends of the spring and retained by the coils of the spring and a ball placed therein. The button offset portion 10 may have a neck and the recesses therein may be separate or joined. An ornament may be secured in the button head which may be countersunk to provide an opening through which adhesive is introduced into the recesses to bond the coils and strip.
Patent GB-795345-A (GB)
Title: Arrangement for testing the overspeed safety devices of steam turbines
IPC: F01D21/02
Filed: 1954-11-24
Abstract: 795,345. Turbines. BROWN, BOVERI & CO., Ltd. Nov. 24, 1954 [Nov. 24, 1953], No. 34067/54. Class 110 (3). [Also in Group XXIX] Apparatus for testing the overspeed devices of steam turbines having hydraulically-operated nozzle valves 9 comprises two mutually independent overspeed governors 2l, 2r on the turbine shaft 1 each of which can be tripped hydraulically, two hydraulically operated emergency stop valve 8l, 8r supplying the turbine in parallel and having a common hydraulic system 6l, 6r, a release valve 4l, 4r associated with each governor and controlled by it to control the pressure of fluid supplied to the respective stop valve and a testing switch 14 for dividing the common hydraulic system into separate systems so that each governor controls its own stop valve independently of the other governor, the switch being arranged on further actuation to cause one of the governors to be tripped and the corresponding stop valve closed and tested without simultaneously closing the nozzle valves or the other stop valve. The switch 14 operates simultaneously stop valves 10, 11, control valves 17l, 17r and a cam 20. The nozzle valves 9 are controlled by a speed governor 13 operating on an oil system 12 which in the normal position of the stop valve 11 shown is also in communication with both the release valves 4l, 4r which are normally closed but ready for operation at any time by their respective overspeed governors 2l, 2r through linkages 3l, 3r. The hydraulic systems 6l, 6r are normally connected through the stop valve 10. Each system is also connected to the respective release valve 4l or 4r so in normal operation if either or both the governors 2l, 2r is tripped both stop valves 8l, 8r will be closed. The stop valves may also be closed by further safety devices, e.g. the electromagnetically operated valve 16. When the switch 14 is moved to either position 1, the system 12 is isolated by the valve 11 from the release valves 4l, 4r and the systems 6l, 6r are separated by the valve 10. On movement of the switch to the corresponding position 2, one of the control valves 17l, 17r opens up a pressure supply to the corresponding overspeed governor 2l or 2r which is thereupon tripped. This results in the corresponding release valve 4l or 4r being opened and the corresponding stop valve 8l or 8r closed if the system is in working order. The cam 20 closes the open release valve and resets its linkage 3l or 3r when the switch 14 is returned to the central position. Non-return valves 211, 21r permit both stop valves 8l, 8r to be tripped should the governor being tested fail and the other governor be tripped during a test. The various oil systems are supplied from a pump through diaphragm-actuated pressure regulators 22. The release valves are of doublebeat type and in an emergency either releases pressure in all the systems 6l, 6r, 7l, 7r, 12.
Patent GB-886765-A (GB)
Title: Steroid compounds and their preparation
IPC: C07J5/00
Filed: 1958-10-24
Abstract: The invention comprises 16a -alkyl-3a ,11b ,17a , 21- tetrahydroxy-pregnan-20-one and 3a , 21-diacyloxy - 16a  - alkyl - 11b , 17a  - dihydroxy - diacloxy - 16a  - alkyl - 11b , 17a  - dihydroxy - pregnan-20-ones, and the preparation thereof by brominating or chlorinating 3a -acyloxy-16a -alkylpregnane-11,20-dione to form 3a -acyloxy-16a  - alkyl - 17a , 21 - dibromo (or dichloro) - pregnane-11,20-dione, reacting this compound with alcoholic alkali metal hydroxide to form 16a  - alkyl - 3a  - hydroxy - 11 - oxo - 17 (20) - pregnen-21-oic acid, esterifying this acid to form the alkyl ester thereof, reducing this ester with lithium aluminium hydride to form 16a -alkyl-17(20)-pregnene-3a ,11b ,21-triol, acylating this compound to form 3a ,21-diacyloxy-16a -alkyl-17(20)-pregnen-11b -ol and hydroxylating this compound with osmium tetroxide under oxidising conditions to form the first compound above, and when required, acylating this compound to form the second compound above.  The example describes the preparation of 16a -methyl-3a ,11b , 17a ,21-tetrahydroxy-pregnan-20-one and the corresponding 3a ,21-diacetoxy compound.  16a  - Alkyl - 17a , 21 - dihydroxy - 4 - pregnene - 3,11,20-trione is prepared by reacting 16a -alkyl-3a , 11b , 17a , 21 - tetrahydroxypregnan - 20 - one with N-bromo-ocetamide to form 16a -alkyl-17a , 21 - dihydroxypregnane - 3, 11, 20 - trione, acetylating this compound to form the corresponding 21-acetate, reacting the 21-acetate with bromine in glacial acetic acid to form 16a -alkyl - 4 - bromo - 17a , 21 - dihydroxy - pregnane - 3,11,20-trione 21-acetate, reacting this compound with semi-carbazide to form 16a -alkyl-17a ,21-dihydroxy - 4 - pregenen - 3, 11, 20 - trione 3, 20 - bis-semicarbazone 21-acetate, reacting this compound with potassium bicarbonate or potassium hydroxide in aqueous methanol to form 16a -alkyl - 17a , 21 - dihydroxy - 4 - pregnene - 3, 11, 20-trione 3,20-bis-semicarbazone, and hydrolysing this compound under acid conditions.  Specifications 877,085 and 886,764 are referred to.
Patent GB-938500-A (GB)
Title: Improved suction feed mechanism for cardboard and like blanks
Inventor: BISHOP THOMAS DESMOND
IPC: B65H3/12
Filed: 1961-09-23
Abstract: 938,500. Feeding sheets. DERITEND ENGINEERING CO. Ltd. Aug.. 30, 1962 [Sept. 23, 1961], No. 34142/61. Class 100 (1). In apparatus wherein cardboard blanks g are separated sequentially from the bottom of a stack by means of an endless belt a, a<SP>1</SP> which is perforated or slotted and associated with a vacuum chamber e<SP>1</SP>, the blanks being moved between a pair of constantly rotating feed rollers i which effect the removal of the blanks, the belt is driven intermittently and is stationary when the rollers i commence their feeding action. As shown, the belt a, a<SP>1</SP> passes over a forward roller c and is situated on the top of a chamber e<SP>1</SP> which communicates with a chamber f housing an extraction fan, so that the bottom blank g<SP>1</SP> is held flat on the upper run a of the belt by suction. The chamber e<SP>1</SP> can be portioned and sections can be shut off when small blanks g are used. The roller c has a gear c<SP>1</SP> in mesh with a gear h<SP>3</SP> driven through a pawl-andratchet or other one-way clutch by a lever h<SP>2</SP>. The lever h<SP>2</SP> is oscillated by a connecting-rod h<SP>1</SP> on a crank secured to a rotating member h of a printing, slotting, or other machine, and provision is made for the correct timing of the feeding of a blank to the machine, e.g. by adjusting the setting of the rod h<SP>1</SP> on the member h. The bottom blank is fed through a gap d<SP>1</SP> below a front stop d, and to assist this operation an auxiliary vacuum chamber j, which communicates with a centrifugal fan in a chamber j<SP>1</SP>, is arranged to pull down the leading edge of the bottom blank. An automatic brake k to arrest and prevent over-run of the belt a, a<SP>1</SP> is provided. Where the auxiliary chamber j is not provided, the forward belt roller c is arranged beneath the stop d. The perforated or slotted wide belt may be replaced by a number of spaced narrow parallel belts.
Patent GB-342778-A (GB)
Title: Improvements relating to the manufacture or treatment of coffee
IPC: A23F5/08
Filed: 1929-11-08
Abstract: 342,778. Cooling coffee. CLIFTON, W. E., St. Gennys, Westhill Avenue, Epsom, Surrey. Nov. 8, 1929, No. 34215. [Class 29.] In apparatus for roasting, cooling, and grinding coffee, the cooler 22 is provided with a perforated partition 26 above which are mounted brushes 27 on arms carried by the main arm 29 on a vertical spindle 30. The spindle is rotated so that the brushes rotate to cause the beans to travel outwards towards the wall of the cooler. A current of cool air is blown in through the cooler. The beans are discharged through an outlet 31 to the grinder.
Patent GB-851948-A (GB)
Title: Method of hot working a metal billet
IPC: B21C33/00
Filed: 1958-10-27
Abstract: 851,948. Making nuclear fuel elements; extruding; working at specified temperatures. BABCOCK & WILCOX CO. Oct. 27, 1958 [Oct. 29, 1957], No. 34269/58. Classes 83 (2) and 83 (4). In the hot-working of a metal billet 10 which at the working temperature is readily oxidizable and easily bonds with contacting metal, a carbon-steel jacket 11-13, Fig. 2, is heated to a temperature sufficient to oxidize its internal surface, the billet is hermetically encased within the jacket, the jacketed billet 16 is hotworked and the jacket is finally removed. In the manufacture of nuclear fuel elements, the billet 10 is made of an alloy of uranium with 10% molybdenum by vacuum-melting in a zirconium crucible and using a graphite mould coated with zirconium. The resulting ingot is heated to 1750 F., sheathed in oxidized steel or copper and hot-rolled to reduce its diameter; the sheathed ingot may be heated in a salt bath before hot-rolling. The resulting billet is then machined to its required diameter. The.jacket comprising a tube 11 and nose 12 welded together by helium-shielded arc welding, is heated in air to 1600 F. for twenty minutes. The billet 10 with machined end caps 15 and a sleeve 14 of zirconium, after degreasing with acetone, are loaded into the jacket, whose other end is then closed by a plug 13 welded thereto by helium-shielded arc welding in a dry box with a helium atmosphere. The jacketed billet 16, Fig. 3, is placed with interposed graphite discs 33 upon the ram 31 of an upstroke extrusion press having a container 23 with a tool-steel liner 28 supporting an extrusion die 29. The billet is heated to 1800 F. for four minutes by a high-frequency induction coil 34 and after lubricating the ram 31, liner 28 and die 29, the ram is moved rapidly upwards to impact extrude the billet wholly through the die and into a support-tube 25. The discs 33 enable complete extrusion to take place without producing a discard. The carbon-steel jacket is finally removed mechanically or by acid pickling, the ends of the extruded bar are cut-off, the bar is then swaged to a required diameter and cut into fuel-element lengths which are each end-capped with zirconium. Specification 851,949 is referred to.
Patent GB-429761-A (GB)
Title: Improvements relating to heat treating furnaces
IPC: F27B9/24
Filed: 1933-12-06
Abstract: 429,761. Conveying furnace charges. BRITISH DRIVER - HARRIS CO., Ltd., Albion Street, Manchester.-(Driver-Harris Co. ; Harrison, New Jersey, U.S.A.) Dec. 6, 1933, No. 34283. [Class 51 (ii)] In a furnace having a conveyer comprising a series of driven rollers 8 carrying charge-supporting discs 10, the rollers 8 terminate short of the side walls 2 of the furnace and are connected by flexible couplings 26 to shafts 28, 30 which extend through sealed apertures 32 in the walls 2 and are rigidly supported in bearings 40. The shafts 28 are rotated through bevel gearing 44 from a main driving shaft 42, and each of the shafts 28, 30 is cooled by water supplied through a valve-controlled branch 36 from a main 38. In the construction shown, the rollers 8 are supported along the centre line of the furnace by bearings each of which consists of a pair of rollers 12 mounted on a vertically adjustable pedestal 16, the adjustment being effected by rotating the shaft 48 to vary the position of a wedge shaped member 46. In the case of relatively narrow furnaces, these central bearings may be omitted.