baber/WOPTO huggingface dataset:
Patent GB-1472447-A (GB)
Title: Method for operating a system with a variable excursion margin setpoint
IPC: H02H1/04
Filed: 1974-08-27
Abstract: 1472447 Nuclear reactors COMBUSTION ENG Inc 27 Aug 1974 [4 Sept 1973] 37446/74 Heading G6C The invention relates to a method of operating a system in response to a parameter excursion, excursion being defined as a change (in the increasing or decreasing direction) from the present value of the parameter, at any rate of change. Although stated to be of general applicability, the invention is described in relation to a nuclear reactor in which an excursion of same vital parameter, by more than a determined amount, causes automatic rapid shutdown. The particular parameter selected for the purpose of description is pressure in the reactor's primary coolant circuit and the method is directed towards preventing shutdown and flooding of the core by emergency coolant when the pressure in that circuit is legitimately lower than in the emergency coolant injection system, e.g. during reactor start-up and normal shutdown procedures, whilst nevertheless allowing rapid shutdown during such procedures should a fault condition occur. Operation proceeds as follows.-An excursion setpoint is generated, being derived from the monitored value of the parameter (primary coolant pressure) and a predetermined maximum allowable excursion. Thus, the setpoint curve for normal operation lies below the curve 1 (Fig. 1) which represents normal primary coolant pressure. During reactor start-up, when primary coolant pressure is increasing, curve 2, so as to diverge from the setpoint, the latter is automatically varied so as to produce a setpoint curve which follows the parameter curve. During normal shutdown, when primary coolant pressure is decreasing, curve 3, so as to approach the setpoint, the latter is held constant; however, on permission from an independent operator (human or machine)-and only on such permission-the setpoint is reset to a new value (derived from the then current value of the parameter and the predetermined maximum allowable excursion) so that the setpoint curve takes a stepped form, as shown. At all stages, the monitored value of the parameter is compared with the setpoint and upon a violation of the setpoint being detected rapid shutdown is effected. Two embodiments of apparatus for producing this mode of operation are described in detail.
Patent GB-1109659-A (GB)
Title: Method of industrial cultivation of unicellular green algae such as chlorella
IPC: A01G33/00
Filed: 1965-09-02
Abstract: The industrial cultivation of unicellular green algae (Chlorella or Senedesmus) involves: (i) inoculating a number of portions of the unicellular green algae into a corresponding number of portions of a sterile aqueous or solid medium containing (a) nutrient inorganic salts, (b) at least one sugar and/or at least one organic acid, and (c) at least one amino acid, or natural material containing amino acids; (ii) allowing the algae to grow while the aqueous or solid medium is kept unilluminated and is kept under an aerolaic condition; (iii) isolating at least one of the strains showing the best growth; (iv) repeating steps (i) to (iii) at least once to obtain at least one strain showing good growth characteristics in unilluminated media; (v) inoculating the best strain obtained into an aqueous medium containing components (a), (b) and (c); and (vi) allowing the algae to grow while the aqueous medium is kept uniluminated and is agitated and/or aerated.  The aqueous medium used in stage (v) may be of a different composition from that used in stages (1) to (iv). Once the algal concentration has reached a maximum in stage (vi), the aqueous medium may be diluted at least once with further aqueous medium as used in stage (v).  The ratio of available carbon to available nitrogen in the growth medium should preferably be less than 6:1.  The cultivation takes place at a temperature in the range 20-30 DEG C.  The amino acid may be casamino acids, cystine, cysteine, methionine, serine, glycine, lysine, tryptophane, or such amino acid-containing materials as soy beans, yeast, fish meal, meat extract, milk, casein, waste liquor from fermented milk, wheat bran and extracts from rice bran.  The other constituents of the nutrient media are generally similar to those disclosed in Specification 1,109,658, but include additionally potassium nitrate.
Patent GB-368412-A (GB)
Title: Improvements in and relating to electrolytic deposition of metals
IPC: C25D1/02
Filed: 1930-12-12
Abstract: Alloys containing iron or chromium and 13-25 per cent of silicon, e.g. as iron or chromium silicide, are used as moulds for electrodeposition.
Patent GB-814951-A (GB)
Title: Improvements relating to tools for inserting rings in rubber and like tubes
IPC: F16L19/028
Filed: 1957-04-24
Abstract: 814,951. Positioning oversize rings within deformable tubes. STOKVIS KONINKLIJKE FABRIEK VAN METAALWERKEN N.V., W. J. April 24, 1957 [April 25, 1956], No. 37577/58. Divided out of 814,950. Class 108(3) A tool for inserting a ring 8 of relatively hard material, e.g. metal, into a tube 9 of rubber or a plastic, such as polyethylene or nylon, in a position in which the axis of the ring is inclined, Fig. 5, or at right angles, Fig. 9, to the axis of the tube and swinging the ring within the tube into a position in which it is coaxial with the tube, comprises a handle 1 and a head 2 which has a spigot 3 adapted to receive the ring and a notch 7 provided with a guide wall 11 adapted to engage the end 10 of the tube to act as a stop as the ring on the spigot is inserted into the tube and about which the tool is swung to swing the ring into its position in which it is coaxial with the tube, Fig. 6. As shown, a shoulder 4 between the spigot 3 and the head 2 provides an abutment for the ring 8, and a stud 5 projects from the lower edge of the spigot to hold the ring in position while the ring is placed within the ubte. The notch 7, formed within a recessed portion 6 of the head, consists of an inclined surface 11a to contact the inner surface of the tube, and a curved, guide wall 11 which abuts the end of the tube to determine the final position of the ring.
Patent GB-1067267-A (GB)
Title: Improvements in or relating to flood lighting columns
Inventor: PRATT JOHN WILLIAM
IPC: F21V21/38
Filed: 1964-09-16
Abstract: 1,067,267. Floodlighting devices. ABACUS ENGINEERING Ltd. Dec. 14, 1965 [Sept. 16, 1964], No. 37731/64. Heading F4R. A bar 4 carrying a number of lamps 5 is suspended by a cable 9 p assing over a pulley 3 mounted at the top of a column 1 the cable being secured to an anch or plate 10 at the base of the column. The plate 10 hss an extension 11 having a series of holes through one of which a pin 13 extending between cross members 12 passes. When it is desired to lower the lamps, e.g. for cleaning, the cable of a portable winch is secured to the plate 10 and the pin removed. The lamps are fed by cables 17 also passing over grooves in the pulley 3 and terminating in connection boxes 15 on the plate 10. The bar 4 may be steadied by arms 6 having cross members 7 at their lower ends engaging a rail 8 on the column.
Patent GB-536483-A (GB)
Title: Electric lamp extractor and replacer
IPC: H01K3/32
Filed: 1940-01-30
Abstract: 536,483. Removing and replacing electric lamps. BECK, S. G., and LONDON PASSENGER TRANSPORT, BOARD. Jan. 30, 1940, No. 37794/38. [Class 61 (ii)] An electric lamp inserting and removing device comprises a pair of arms 15, 16 provided with rubber covered gripping jaws 23, 24 and pivoted at 14 to a slide 13 slidable within a body 10 fitted on a handle 12, the arms passing through Spaced holes 17, 18 in the closed end 19 of the body 10 so that when the jaws are presented to a lamp, contact of the latter with a projection 27 on one of the jaws causes the jaw arms to move inwards in the body and at the same time to close together and grip the lamp. When the lamp is fixed a downward pull on the handle causes the jaws to' move outwards in the body and release their grip on the lamp. A spring 21 provides frictional resistance to the movement of the arms in the body. In the modification shown in Fig. 3 the body 10 is adapted to be given a quarter turn relative to the jaw arms 15, 16 and slide 13 in order to lock ratchet teeth 43 with a pawl 38 on the slide 13 enabling the grip of the jaws to be maintained on a lamp whilst a downward pull on the tool is given for the purpose of removing a lamp which has become loose in its terminal cap.
Patent GB-1537559-A (GB)
Title: Methods of fabricating filament-reinforced hollow bodies
IPC: B29C70/00
Filed: 1976-09-14
Abstract: 1537559 Winding hollow bodies with internal flanges DEFENCE SECRETARY OF STATE FOR 23 Aug 1977 [14 Sept 1976] 38075/76 Heading B8G To wind a hollow body having at least one internal circumferential flange, two mandrel portions are separately wound with filament, the windings extending across at least one end of each portion so that the windings extend stably inwards towards the mandrel axes, a second filamentary winding is made between the inwardly extending parts of the first windings, a third filamentary winding is made over the first and second windings, and the mandrel portions are removed. A cylindrical mandrel, Fig. 1, comprises parts 1, 2, 1<SP>1</SP>. Separate helical windings of impregnated fibre are formed on parts 2, and flanges 5 being formed by chords, lying across the end faces of parts 2, which arise because of a dwell in fibre traverse at its reversal points. Circumferential winding 6 then fills in the flange, and further covering winding 7 is formed. Initial windings 4<SP>1</SP>, Fig. 3, may be formed on separated mandrels 2<SP>1</SP> which are then brought together with spacer ring 10. The inward flange may have the shape shown in Fig. 4. Shrunk film may be used on the outside of the uncured windings, collapsible or frangible mandrels may be used where the end or other flanges are to be retained, and the mandrels may be of any shape. The flanges may be wound across pegs in the end faces in the mandrel parts. Glass or carbon fibre may be used.
Patent GB-1446279-A (GB)
Title: Production of azines
IPC: C07C251/88
Filed: 1974-09-03
Abstract: 1446279 Azines BAYER AG 3 Sept 1974 [5 Sept 1973] 38399/74 Heading C2C In the manufacture of azines by reacting ammonia, hydrogen peroxide and an aldehyde or a ketone, the catalyst used is selenium, tellurium or a compound of selenium or tellurium, e.g. selenium dioxide, selenous acid, selenic acid, tellurous acid, telluric acid or an ammonium, alkali metal, alkaline earth metal, zinc, aluminium, tin, lead, arsenic, antimony, bismuth or silver selenite, selenate, selenide, tellurite, tellurate or telluride. The sodium salt of ethylene diamine tetracetic acid may also be present during the reaction. The ketone and hydrogen peroxide may be used, wholly or in part as a ketone peroxide. Similarly the ketone, hydrogen peroxide and ammonia may be used, wholly or in part, in the form of an aminoperoxide of the ketone. Examples describe the preparation of the azines of acetone, methyl ethyl ketone and cyclohexanone.
Patent GB-1237158-A (GB)
Title: Pharmaceutical compositions containing and process for preparing a benzodiopane derivative
Inventor: KRYLOV SERGEI SERGEEVICH
IPC: A61K31/335
Filed: 1969-07-31
Abstract: 1,237,158. Pyrrolidyl-propionyl-benzodioxane derivative preparation. INSTITUT TOXIKOLOGII MINISTERSTVA ZDRAVOOKHRANENIA S.S.S.R. 31 July, 1969, No. 38403/69. Heading C2C. [Also in Division A5] # - (3<SP>1</SP> - Phenyl - pyrrolidyl - 1<SP>1</SP>) - 6 - propionyl-benzo-1,4-dioxan HC1 is prepared by reacting 3-phenylpyrrolidine, 6-acetyl-benzo- 1,4-dioxan and paraform in molar ratio 1:1: 2À6 in the presence of HCl in alcoholic soln. at 60-120‹ C., rendering the reaction mixture alkaline after removal of unreacted 6-acetylbenzo-1,4-dioxan, recrystallizing the base from ether and reacting the recrystallized base with alcoholic HCl.
Patent GB-866688-A (GB)
Title: Improvements in or relating to the preparation of beverages
Inventor: GLUCKSTEIN LEONARD
IPC: A23L2/06
Filed: 1958-11-28
Abstract: Whole citrus fruit, e.g. oranges, is comminuted, the comminuted fruit is agitated in a quantity of a hot liquid, such as sugar syrup, to effect rapid extraction of the fruit and the resultant dispersion, whilst still hot, is mixed with a substantial volume of a cold or chilled liquid.  The process is described with reference to apparatus described and claimed in Specification 866,689.  A formulation for orangeade is given.
Patent GB-384974-A (GB)
Abstract: 384,974. Dynamo-electric machines. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. March 7, 1931, No. 7170. Convention date, March 7, 1930. Void [Published under Sect. 91 of the Acts]. [Class 35.] Machines with vapour and like rectifiers in place of commutators, rotary converters and transformers.-In a high tension continuous current motor employing controlled valves in place of a commutator, the continuous current is fed to the motor indirectly through a transformer. A motor of this type requires a starting motor and the Figure is a circuit diagram of the main and starting motors. The positive line is connected to the'primary winding 'p of a transformer t through a resistance wand the star points of the primary are connected to the anodes c of a valve v; the cathode k of which is connected to the armature d of the starting motor b. Resistances w3, w2, w1 are provided in parallel with the armature d and field winding e1 of the starting motor and the field'winding e2 of the main motor a. As the main motor accelerates, it supplies alternating current to the secondary of the transformer t. The valve v has a number of auxiliary anodes h connected to the star-connected secondary of a phase advancer f which may be a normal induction regulator. The purpose of the auxiliary anodes is to feed the main field winding e3, and to provide positive voltage impulses for the grids g, the circuits of the grids and auxiliary anodes being coupled through transformers n. A switch u short-circuits the winding e2 as soon as the winding e3 is sufficiently energized. Thereupon the resistance w can be short-circuited by the switch m, and further movement of the switch u cuts out the field and armature of the auxiliary, motor b. Speed regulation is effected by means of the phase advancer f, or by varying the field excitation. In a modification the necessary impulses are given to the grids g from a battery or auxiliary generator through a commutator switch having a rotary contact arm. The main motor can be started by means of a separate commutator connected therewith in which case the motor will be constructed as a synchronous rotary converter which can give both mechanical and electrical energy in the form of continuous or three phase current, or the converter may be provided with separate windings for the continuous and the three-phase current. The Specification contains claims for the use of both series and shunt type field windings and for tapping from the motor or transformer, polyphase current which is converted into continuous current by separate rectifiers or converters.
Patent GB-1280687-A (GB)
Title: Fluid control valve
IPC: F04B49/02
Filed: 1969-07-31
Abstract: 1280687 Valves DANFOSS AS 31 July 1969 [3 Aug 1968] 38540/69 Heading F2V [Also in Division F4] Valving arrangement for an oil pump system particularly for supplying a burner 9, comprises a cut-off valve 7, Fig. 1, which establishes connection between the pump discharge line 4 and a line 8 to a consumer unit such as the burner 9 when a prescribed opening pressure is reached, and a pressure-regulating by-pass valve 10 which returns surplus oil to a sump 3 through a line 11. The arrangement also includes a venting valve 12 which initially vents the pump discharge line to the sump to get rid of any air and is arranged to close before the prescribed opening pressure of the cut-off valve is reached. The venting arrangement is embodied in one combined valve device, in which the functions of the pressure-regulating by-pass valve and the venting valve are performed by a unitary piston valve member (61), Fig. 3 (not shown). The discharge line (4) goes to a piston chamber (69) connected to the line (8) through the cut-off valve. Initially the discharge is vented to the line (11) through a passage (72) in the piston and a port (77) opened by a control edge (79). As the piston moves against a spring (67) the vent is first closed and the pressure subsequently regulated by a second control edge (75) co-operating with a port (76). In another embodiment, Fig. 2, all the valves are combined in a unitary arrangement. The pump discharge line 4 is branched as in Fig. 1 to a vent line 13 communicating with line 11 through a groove 28 in a control piston 23. This piston is moved against a spring 24 by the discharge pressure acting in a chamber 27, whereby the vent line is first closed. The control piston slides relatively to a closure member 34 and after leaving an 0-ring seal 54 in a regulating piston 48, subsequently opens communication for the discharge pressure, through passage 42, 44, 43 in this member, with a chamber 47. When the prescribed pressure is reached in chamber 47, the regulating piston 48 moves under a spring 55 to establish the by-pass connection with line 11 through a port 50 and is followed by the closure member 34 under spring 56. The closure member unseats from the end of a cap 37 and 0-ring seal 25 to open communication with the line 8.
Patent GB-819851-A (GB)
Title: Improvements in cigar bunch making machines
IPC: A24C1/10
Filed: 1957-12-12
Abstract: 819,851. Cigar-making machines. ARENCO A.B. Dec. 12, 1957 [Dec. 19, 1956], No. 38695/57. Class 130. The shape of a tobacco filler F deposited in a rolling apron pocket 26 is retained by suction acting through openings 29 on the pocket, whilst a roller 6 operable to wrap the filler in a binder on a rolling table 1 advances across the pocket. The suction may act continuously or be periodically cut-off.
Patent GB-1069982-A (GB)
Title: Improvements in or relating to sheets of aluminium alloy and methods of manufacturing same
Inventor: DOYLE WILLIAM MICHAEL
IPC: C22F1/05
Filed: 1963-10-02
Abstract: An alloy containing in percentage by weight <TABS:1069982/C6-C7/1> but in which the Ag content may be increased to 0.8% (with corresponding increase in the 1% total maximum) if the Cu is reduced below 2.5% by at least as much as Ag exceeds 0.5%, is subjected to a series of cold rolling steps each of which involves 12-50% reduction, a recrystallization anneal e.g. at 360 DEG  to 385 DEG C., for 6 to 8 hours being given after each step except the last.  The sheet is then solution treated at 525 DEG -545 DEG C., for approximately 15 to 50 minutes, and is then quenched and artificially aged e.g. at 175 DEG to 210 DEG C., for 4 to 30 hours. Prior to solution treatment the sheet may be given a recovery anneal at 150 DEG  to 300 DEG C., for 15 minutes to 3 hours, whereby an improvement in creep properties is obtained.  Alternatively or additionally the cast rolling slabs may be homogenized at a temperature at or just below that of solution treatment for 10 to 48 hours.  The sheet may be clad with commerically pure aluminium, with aluminium containing 0.8 to 1.2% of zinc, or with an alloy containing .Mg.0.4-1.4 .Si.0.2-1.3 .Mn.0-1 .Cr.0-0.3 .Zn.0.8-1.2 .Al.balance
Patent GB-389978-A (GB)
Abstract: 389,978. Bottling ether. MALLINCKRODT CHEMICAL WORKS, 3600, North 2nd Street, St. Louis, Missouri, U.S.A. March 2, 1932, No. 6359. Convention date, March 2, 1931. [Classes 125 (ii) and 125 (iii).] A method of filling and sealing ether in cans &c., includes the step of filling either the space above the liquid level of the container or the chamber in which filling takes place with the vapour obtained from boiling ether, to the exclusion of air &c., and then sealing the container. Ether is introduced into a can 1 through a filling pipe 19 a space 23 being left above the liquid level. The filling tube is then removed and the container with the ether is rapidly brought to a boiling temperature the space 23 being freed from air and filled with ether vapour. The closure 13 preferably made of lead is then applied and held in place by a ring 17 which engages flange 15 on the container and the flanged closure 13. Specifications 364,582 and 364,646 are referred to.
Patent GB-887110-A (GB)
Title: Control and annunciator system
Inventor: SPERRY ALBERT FRANCIS
IPC: G08B23/00
Filed: 1958-12-03
Abstract: 887,110. Temperature alarm systems. PANELLIT Inc. Dec. 3, 1958, No. 39064/58. Class 118. A sensitive relay MR is normally operated by the unbalance current of a Wheatstone bridge 6, which includes in one arm a temperature-sensitive resistor 13, but releases when the temperature to which this resistor is subjected reaches a pre-alarm value at which the unbalance current is insufficient to maintain it operated. This results in the release of a normally-operated pre-alarmrelay R1  which lights lamp L1 and connects a higher potential source 19 to the bridge, whereupon MR re-operates. When a higher (alarm) temperature is reached MR again drops back, thus releasing R2 which lights lamp L2 and brings down the general alarm relay R5 which closes down the apparatus which is being monitored. A plurality of variable temperatures may be monitored simultaneously by providing one equipment such as is shown in the two boxes A in respect of each temperature to be monitored. The rheostat 12 in each such equipment is set in accordance with the desired alarm temperature, and the common poteniometer 24 from which the bridges are fed is set in accordance with the desired difference between the alarm and pre-alarm temperatures. If desired, the resistor 13 and rheostat 12 may be connected in series with the relay MR directly across the potential sources instead of in one arm of a Wheatstone bridge. In the modification of Fig. 4 (not shown), two prealarm indications are given.
Patent GB-1116363-A (GB)
Title: Semiconductor devices
IPC: H01L23/48
Filed: 1965-09-13
Abstract: 1,116,363. Semiconductor devices. SIEMENS-SCHUCKERTWERKE A.G. 13 Sept., 1965 [12 Sept., 1964], No. 39066/65. Heading H1K. A semi-conductor device having two electrodes on one major face arranged so that one electrode lies within an aperture in the second electrode, is contacted by two metallic members, the contact face of one of the members contacting substantially the whole of the free surface of the second electrode and extending over the edge of the aperture. Fig. 4 shows part of an S.C.R. provided with an annular control electrode 5. The contact member 20 which is pressed into electrode 5 is also annular and extends over the inside edge of the electrode to increase the current carrying capability and cooling effect of the contact. The edge of member 20 is rounded to prevent the generation of high electric fields. Contact member 28 may also extend over the outside edge of electrode 7. The production of an S.C.R., Fig. 2 (not shown), is described and comprises diffusing aluminium, gallium, or boron into the surface of an N-type silicon wafer, forming a ring-shaped groove or removing the edge of the wafer by grinding, etching, or sandblasting to form three layers (2, 3, 4), alloying an annular foil (5) of gold containing antimony and a disc (7) of gold containing boron to the upper surface to form emitter region (6) and an ohmic contact to layer (4) respectively, and alloying a molybdenum or tungsten carrier plate to layer (3) using a foil (8) of gold containing boron. The use of aluminium foils is also mentioned. The device may be encapsulated.