baber/WOPTO huggingface dataset:
Patent GB-747950-A (GB)
Title: Improvements in or relating to devices for making photographs of x-ray images by means of an image amplifier
IPC: H05G1/44
Filed: 1954-07-16
Abstract: 747,950. X-ray apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 16, 1954 [July 17, 1953], No. 20867/54. Class 98 (1). In a device for photographing on kinematograph film an X-ray image produced on a fluorescent screen by means of an image amplifier, means are provided for measuring the required time of exposure of the film by means of a quantity derived from the photo-cathode current of the image amplifier. As shown, an image amplifier 1 and a kinematograph camera 2 are enclosed in a light-proof housing 3. The X-ray image formed on the photo-cathode 5 is reproduced on the fluorescent screen 7 and photographed on the film 9. A voltage source 12 in series with a resistor 13 is connected between the photo-cathode 5 and the anode 6 of the image amplifier, and resistor 13 is connected between the grid of a valve 14 and a D.C. supply 15 connected to the valve cathode. The voltage across resistor 13, and hence the grid-cathode voltage of the valve, varies with the photocathode current of image amplifier, which is a measure of the image brightness. A meter 19 in series with the anode voltage supply 20 therefore affords an indication of image brightness. In kinematography of a continuous image, the X-ray tube voltage is varied to keep the meter reading at a value corresponding to a suitable image brightness. Alternatively, the meter 19 may be replaced by a condenser which is charged at a rate corresponding to image brightness, the exposure being terminated by known means when the voltage across the condenser reaches a given value. The film drive may also be actuated so that successive exposures may be made.
Patent GB-236412-A (GB)
Title: Improvements in drying apparatus
IPC: D06F58/02
Filed: 1924-09-04
Abstract: 236,412. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). Sept. 4, 1924. Charging and feeding; air, controlling circulation of.-Clothing, textile fabrics, &c. are placed in perforated cylindrical containers 34 which are conveyed through the drying-chamber by inclined rotary shafts 9 and returned to the feed' end of the chamber upon return tracks 22 mounted upon the top of the chamber. The empty containers pass from the return tracks 22, Fig. 2, around guide tracks 24 on to an oscillatory gate 26 upon which they are charged with clothing and released so as to pass on to a rotary 29 which turns them through a right angle as they pass on to the shafts 9. As the containers pass through the drying-chamber, they engage fingers 15 on dampers 14 which control communication between the drying-chamber and the suction chambers 18 arranged in the upper part thereof. By these arrangements, cold air is drawn over steam-heated tubes located in the lower part of the drying-chamber, through the containers, and the ducts 18, 21a, and thence discharged into the atmosphere or returned to the heating-chamber and recirculated' through the apparatus. On arrival at the discharge end of the apparatus, the containers are emptied and placed on the return tracks along which they run by gravity to .the feed end of the apparatus. Specification 235,430 is referred to.
Patent GB-984680-A (GB)
Title: Electrical resistor and method of making the same
IPC: H01C1/034
Filed: 1961-06-09
Abstract: 984,680. Fixed resistors. INTERNATIONAL RESISTANCE CO. June 9, 1961 [June 17, 1960], No. 20922/61. Heading H1S. An electrical resistor comprises a metal resistance film 14 coated on a substrate 12 of an electrical insulating material, and a protective coating 20 covering the metal resistance film, the protective coating being impermeable to water vapour and comprising an anhydrous inorganic salt of the metal of the resistance film. In the embodiment the metal used is chromium and the protective coating consists of chromic chloride or chromic fluoride. Specification 863,881 is referred to.
Patent GB-687463-A (GB)
Title: Condenser
IPC: H01G4/228
Filed: 1951-09-05
Abstract: 687,463. Electric condensers. ERIE RESISTOR CORPORATION. Sept. 5, 1951 [Sept. 20, 1950], No. 20935/51. Class 37. A ceramic tube 1, Fig. 1, with external and internal coatings 3, 2 is held within a metal casing 8 by a metal clip 13, Fig. 2, which has friction connection with both the external electrode and the case, the internal electrode being connected to a lead at the top of the condenser, and the case being filled with plastic material 16. As shown in Fig. 1, the lead 6 is soldered to the internal electrode which laps over the top of the ceramic tube. The lead 6 may be encased in a metallic sleeve 17, Fig. 3, to act as a binding-post. The clip 13 may be formed from a stamping, Fig. 7, bent as shown in Figs. 8, 9. to form a cup for the condenser to be forced into the case, Figs. 4, 5, 6, not shown. The connection to the internal electrode may be made by a plug, Fig. 10, to be inserted into the ceramic tube. Specification 674,791 is referred to.
Patent GB-803177-A (GB)
Title: Removal of fume from gases
Inventor: TYLKO JOZEF KAZIMIERZ
IPC: B01D51/02
Filed: 1956-07-06
Abstract: 803,177. Separating dust from gases. BRITISH OXYGEN CO., Ltd. June 26, 1957 [July 6, 1956] No. 21005/56. Class 8(2). Agglomeration of fine gas-borne ferro-magnetic particles prior to their separation by conventional means is effected in a chamber 10 having a particle-laden gas inlet duct 11 and a chamber 17 to which is injected a suspension of magnetic powder in a compressed carrier gas, e.g., air, nitrogen or argon ; the temperature of the gas borne ferromagnetic particles being below that at which their magnetic properties are lost, e.g., 250‹C. In separation relatively coarse ferric oxide or ferro-magnetic powder is supplied from a hopper 12 by a screw 16 into a nozzle 15 through which it is induced by the carrier gas issuing from a nozzle 18 into the chamber 17, and after deflection at a baffle 21 becomes intimately mixed with the fine particles to be agglomerated ; the powder being given a controlled amount of residual magnetism by a D.C. coil 19 surrounding the screw 16 and by an A.C. demagnetizing coil 20 adjacent the nozzle 15.
Patent GB-860931-A (GB)
Title: Improvements relating to dynamo-electric machines
Inventor: FROW REGINALD HARRY
IPC: H02K3/22
Filed: 1957-07-03
Abstract: 860,931. Dynamo-electric machines. ENGLISH ELECTRIC CO. Ltd. June 27, 1958 [July 3, 1957], No. 21011/57. Class 35. In a dynamo-electric machine, e.g. a large induction motor comprising disposed in the slots of a rotor core 12 a winding 14 formed from hollow conductors having an overhang portion 16 at each end of the core, there are provided gas inlet and outlet ports, respectively, in the end faces of the overhang portions 16 and in the conductors intermediate the core ends, and, adjacent each overhang portion 16, a centrifugal fan 18 having a plurality of blades 21 between two axially-spaced walls 19, 20, each fan being arranged to draw cooling gas axially into the space between the walls 19, 20 and to discharge it from the space directly into the inlet ports. The winding may have two layers, and, as shown, the outlet ports comprise radial ducts 28, 30 in electrically-insulating winding wedges 25 and in the core, and ducts, e.g. 29, in U-shaped electrically-insulating inserts 26, 27 fitted into a cut-away space in the conductor bars 22, 23. In other embodiments the inserts are fitted in various other positions in the conductor bars and the ducts 30 may be formed by a spacer between the core laminations. The gas may be, e.g., air or hydrogen, and from the air-gap may be exhausted radially into aligned vents in the stator core, not shown. The fan blades 21 are radial or curved, depending upon whether or not the motor is reversible.
Patent GB-711015-A (GB)
Title: Improvements in and relating to luminescent screens
IPC: H01J29/18
Filed: 1952-08-21
Abstract: 711,015. Coating with metals; modifying metallic surfaces. GENERAL ELECTRIC CO. Aug. 21, 1952 [Aug. 23, 1951], No. 21012/52. Class 82 (2) [Also in Groups XV and XL(a)]  A method of making a luminescent screen, particularly a transparent cathode ray tube screen, comprises depositing on a transparent base, preferably of glass or quartz, a film of metallic manganese, converting the film to the sulphide of manganese, preferably having a thickness in the range of 0.001 to 0.1 micron, and depositing on the manganese sulphide film an activated film containing a compound of zinc and/or cadmium with sulphur or selenium. Fig. 1 shows a chamber 1 containing a vaporizer 2 supplying manganese vapour which is deposited on a disc 3 of refractory glass or fused quartz. The boat-shaped vaporizer 2 of tungsten or molybdenum contains manganese or a mixture yielding manganese and is heated through wires 4, 4<SP>1</SP> and terminals 5, 5<SP>1</SP> to a temperature of 1200‹ to 1500‹C. The chamber 1 is closed by an insulating plate 6 through which passes an evacuation conduit 7. The disc 3 coated with manganese is transferred to the apparatus shown in Fig. 2 where the manganese film is converted to a manganese sulphide film by exposure to hydrogen sulphide gas from a conduit 13 at a temperature of 400‹ to 600‹C. The apparatus shown in Fig. 2 is described in Specification 702,575 and comprises a chamber 10 closed by a cover 11 through which pass conduits 12, 13 for the supply of reacting materials and conduit 14 for the evacuation of by products. The chamber 10 is surrounded by a heating chamber or oven 15. Zinc or zinc-yielding material such as zinc chloride contained in a hopper 17 is introduced into the conduit 12 by the feeding device 18 and is supplied to the vaporizer 19 of quartz or "Alundum" (Registered Trade Mark) heated by an externally wound resistor 20. Vapour of zinc or zinc chloride rises from the vaporizer 19 and reacts with the hydrogen sulphide from the conduit 13 causing zinc sulphide to be deposited as a transparent film over the film of manganese sulphide on the disc 3. This operation is carried out with the chamber 10 heated to 500‹-600‹ C. and the vaporizer heated to about 750‹C. A small amount of an activator such as manganese, silver, copper, zinc or aluminium may be associated with the zinc or zinc-yielding material. When manganese activation is desired manganese chloride can be used or the activator can be dispensed with as some manganese from the underlying base film of manganese sulphide enters the zinc sulphide film. In place of the zinc sulphide film a transparent zinc selenide film or transparent activated sulphide or selenide films of cadmium and zinc-cadmium mixtures may be deposited on the manganese sulphide film as described in Specification 702,575, [Group XL (a)].
Patent GB-989948-A (GB)
Title: Compressed air or other gas control valves
Inventor: GUY KENNETH THEODORE
IPC: G05D16/10
Filed: 1961-06-12
Abstract: 989,948. Valves. ROTAX Ltd. June 5, 1962 [June 12, 1961], No. 21089/61. Heading F2V. [Also in Division G3] A valve for pneumatic fluids comprises a housing 1 having an inlet and outlet 2, 3 at opposite ends, a casing 4 within the housing closed at its upstream end and defining a flow path with housing 1, a fixed hollow stem 6 and a sleeve 7 coaxially in the casing defining a pair of concentric chambers 9a, 9b and 10a, 10b respectively, a first piston closure member 11, 12 movable in the outer chamber and having a sleeve 11 to control the said flow path, a second piston-closure member 15, 16, 17 movable in the inner chamber and having a head 17 to engage a seating 18 between the inlet and outlet and spring urged to open position, the first closure 11, 12 being responsive, in open position of the second closure, to outlet pressure through openings 20 in stem 6 controlled by the second closure to regulate the flow, and control means whereby one end 10b of the inner chamber can be subjected to inlet pressure to move the second closure to closed position, such that when head 17 is exposed beyond the sleeve 11 the flow will move head 17 to engage seat 18. The inner valve member is controlled by a solenoid pilot valve 23a, 23b which from the inlet, through a filter 22 and passages 24, 25 supplies or vents a bellows chamber 26 to operate in unison two pairs of relay valve members 27, 28, 29, 30. In open position as shown, pilot valve 23a being closed, pressure is supplied past valve 28 to chamber 10a whilst chamber 10b is vented through valve 29. The outer valve member is then responsive directly to outlet pressure in chamber 9b through stem 6 to close the valve against springs 13, 14 plus a regulated control pressure in opposite chamber 9a established through a passage 31 by a spring-loaded combined piston and lift supply and vent valve 33, 32, the piston being in communication with passage 31 through a fixed restrictor 34. On closing the inner valve member, leakage of inlet pressure past the piston 11 to chamber 9b closes the outer valve member also. A pressure equalization orifice 21 across head 17 facilitates re-opening. To avoid excessive outlet pressure in the event of sticking of the outer valve member, a spring- loaded pilot valve 37 communicating with the outlet, opens to pressurize bellows chamber 26, whereby the inner valve member is closed. Similarly, if the regulating valve 33 should stick and apply excessive pressure in chamber 9a, a pilot valve 35 opens to apply this pressure to bellows chamber 26, again closing the inner valve member.
Patent GB-727684-A (GB)
Title: Improvements in metal tubing and method of making the same
IPC: B21C37/087
Filed: 1952-08-22
Abstract: 727,684. Metal tubes. BUNDY TUBING CO. Aug. 22, 1952 [Sept. 10, 1951], No. 21097/52. Class 99 (2). [Also in Group XXII] A metal tube' 2 having a longitudinal seam is made by bending a flat metal strip in a tube rolling mill (see Group XXII), and a separate strip of metal 19 carrying a bonding material is incorporated in the seam during the rolling and forms part of the wall of the finished tube. The tube is preferably of steel.
Patent GB-1109979-A (GB)
Title: Portable fountain
IPC: B05B17/08
Filed: 1966-05-12
Abstract: 1,109,979. Fountains. E. TURKOWSKI. May 12, 1966, No.21135/66. Heading F1X. A fountain includes an upwardly extending translucent recess 6 in a liquid container 3, a rotatable colour disc 11 and a transparent protective shield 17 within the recess, and an electric driving motor 15 and lighting means 18 both situated below the shield. Liquid is drawn into pump 9 through suction valve 10 and is ejected through nozzle tube 8. Falling water is directed through holes in leaves 19 back into trough 5. Disc 11 which has coloured segments is rotated by electric motor 15 through gearing 13, 14. The floor of trough 5 may be laid in mosaic. Loudspeakers may be mounted between support 2 and container 3.
Patent GB-145305-A (GB)
Title: A mechanical advertising car or machine
IPC: G09F21/04
Filed: 1919-08-28
Abstract: 145,305. Bell, T. C. Aug. 28, 1919. R o t a r y apparatus; rotary cylinder and like apparatus.-Relates to advertising vehicles carrying a vertical drum bearing advertisements revolved by gearing from the wheels of the vehicle which are hidden by boards, a receptacle for hand-bills, samples, &c. being also provided. The invention consists in making the display boards on the drum and round the vehicle wheels loose and interchangeable, and providing for a continuous rotation of the drum. Receptacles M are provided at back and front of the vehicle. In a modification, the drum is replaced by enlarged continuously revolving models J of the advertised article.
Patent GB-680782-A (GB)
Title: Radio frequency transformer
IPC: H01F21/06
Filed: 1950-08-28
Abstract: 680,782. Aerial coupling arrangements for radio receiving sets. ALADDIN INDUSTRIES, Inc. Aug. 28, 1950 [Sept. 7, 1949], No. 21261/50. Class 40 (v). [Also in Group XXXV] A radio-frequency amplifier suitable for television use has the amplifying stage 48 thereof coupled to a dipole antenna 44 by means of a coupling device having a primary winding, the mid-point of which is connected to a conducting screen 38 physically disposed between it and an inductor winding 16. A magnetic core 26 is provided to enable the inductor to be tuned initially, a further conducting non- magnetic hollow core 30 being provided to effect normal tuning of the amplifier under the control of the element 53. A device constructed in this manner prevents any interference present on the antenna from being transmitted into the amplifier and also enables tuning to be made over two spaced frequency bands-e.g. channels 2-6 and channels 7-13 -without substantially any variation in the reflected impedance of the device into the antenna. A similar device may be used at other points in the circuit as at 50, 62, 71, the primary winding not being utilized, and these may all be placed under a common control. Specification 680,781 is referred to.
Patent GB-488758-A (GB)
Title: Improvements in or relating to furnaces for the heat-treatment of metals
IPC: C21D9/70
Filed: 1937-07-31
Abstract: 488,758. Soaking-pit furnaces. SADLER, A. L. (Keener, S. F.) July 31, 1937, No. 21269. [Class 51 (ii)] In a soaking-pit furnace such as is described in Specification 471,007 the refractory material b of the heat treatment chamber is enclosed by a metal shell c having at its upper part surrounding the charging throat a<1> a channel-sectioned ring j supporting by an angleiron bar j<1> a sand seal trough g which supports the cover d for the throat a<1>. The cover d is surrounded by an I-section annular member e formed with strengthening ribs e<2> and having attached to its under side a base plate e<1> and a plate f formed with an annular flange f<1> dipping into the trough g. The cover d may be raised or lowered by overhead gear running on rails k on an operating floor l which is mounted on beams k<1>, m carried by pedestals k<2> arranged externally to the shell c. The rails k may extend along a battery of furnaces for which a single cover-raising gear only is provided.
Patent GB-1021013-A (GB)
Title: Water-soluble reactive yellow monoazo-dyestuffs and process for their manufacture
Filed: 1963-05-28
Abstract: The invention comprises water-soluble reactive yellow monoazo dyes of formula <FORM:1021013/C4-C5/1> wherein the azo group stands in meta- or para-position to the grouping -NH-CO-, X is a hydrogen atom or a carboxyl group and the benzene nucleus A may be substituted by chlorine atoms and/or methyl groups.  The dyes are prepared by diazotizing an amine of formula <FORM:1021013/C4-C5/2> wherein one Y is -NH2 and the other Y is a hydrogen atom in the form of its sulphuric acid esters and coupling with a 1-(sulphophenyl)-3-carboxy-5-pyrazolone The dyes may be used to dye cellulose fibres in yellow shades in the presence of acid-binding agents.  Examples desribe the preparation of the dyes.
Patent GB-961084-A (GB)
Title: Nuclear reactor
Inventor: HOLMES JOHN ARTHUR GEOFFREY
IPC: G21C1/07
Filed: 1962-06-01
Abstract: 961,084. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. May 24, 1963 [June 1, 1962], No. 21342/62. Heading G6C. A pebble-bed reactor has a refractory core structure which defines a plurality of separate chambers each having a fuel bed, fuel inlets and fuel outlets, and a conical base converging towards the outlet with an included angle not greater than 90 degrees. The reactor is gas cooled and is contained in a steel pressure vessel 11 supported on rollers 13. A diagrid 17 is supported on rollers 15 and carries openwork stainless steel insulating blocks on its upper surface which in turn support the seven reactor chambers 24. A hot box 37 is suspended from the diagrid. There is a nett upward thrust on the hot box, due to the pressure in the conduits being at outlet pressure, which places the conduits in compression, and relieves the loading on the diagrid. The core is formed from graphite blocks stren gthened by loops 26. Each chamber 24 includes fuel inlet and outlet pipes 32, 33 and coolant inlet and outlets 34, 35, the latter having a slot-like cross-section which prevents the escape of fuel therethrough. Boron carbide control rods are inserted into the chamber partitions 29 through standpipes 48. Coolant is circulated from the inlet 42 primarily through the chambers 24, conduits 36, hot box 37, and out through the concentric pipe 41. A part of the coolant passes from the inlet up through the diagrid 36 and horizontally outwards through the openwork steel blocks between the diagrid and core base; thus the diagrid, insulating layer, and conduits 36 are cooled. A further minor coolant circulation takes place upwardly through passages in the hot box which contain the fuel outlet pipes 33; thus spent fuel retained temporarily in the outlet pipes is cooled. A further provision for cooling the spent fuel comprises passing a portion of the coolant from above the diagrid through bleed holes into the fuel outlet pipes, and thence to the gas inlet pump. The secondary coolant circulations are achieved by restricting the main coolant path by plates 43. The fuel comprises spherical balls of uranium carbide nodules coated with pyrolytic graphite and embedded in a graphite matria. Specification 821, 607 is referred to.
Patent GB-826925-A (GB)
Title: Improvements in or relating to -a-and -y-glutamyl peptides
Filed: 1956-07-10
Abstract: The invention comprises (1) the preparation of a  - glutamyl - peptides HOOC-CHR1-NH-CO-CH(NH2) -CH2-CH2-COOH by reacting an N-tritylated glutamic monoester (a  or g ) with an amino-ester NH2-CHR1-COOR, in the presence of dicyclohexyl-carbodiimide (cf. Specification 820,789), hydrolysing the two ester groups with alkali and removing the trityl group with hot aqueous acetic acid; (2) the preparation of g -glutamyl peptides HOOC-CH(NH2) -CH2-CH2-CO-NH-CHR1-COOH by reacting an N-tritylated a -benzyl glutamate with a benzyl ester NH2-CHR1-COOCH2C6H5, removing the benzyl group by hydrogenolysis and detritylating; (3) the N-trityl derivatives of the a - and g -glutamyl-peptides and their diesters. In the formul  R1 is hydrogen or an alkyl or aralkyl group (which may be substituted) of not more than 8 carbon atoms.  The starting materials are made by di-esterifying glutamic acid, tritylating the ester, and either monohydrolysing to remove the g -ester group, or if the a -esterifying group is benzyl removing this by hydrogenolysis. Such an a -benzyl g -alkyl N-tritylglutamate can be obtained by alkaline alcoholysis of the dibenzyl ester as in Specification 813,927.  In process (1) above hydrolysis of the two ester groups proceeds via an N-substituted tritylamino-glutarimide so that the a -peptide is obtained irrespective of whether the a - or g -monoester is used as starting material.  In all these steps racemization is negligible so that DL-, D- and L-products can be obtained.  In the examples the following are prepared: (1) N-trityl-g -glutamyl-glycine diethyl ester, N-trityl-a -glutamyl-glycine and a -glutamyl-glycine; (2) N - trityl - a  - glutamyl - glycine methyl ethyl ester and a -glutamyl-glycine; (3) N-trityl-g -glutamyl-glycine dibenzyl ester, N-trityl a - and g -glutamyl-glycine and a - and g -glutamyl glycine; (4) N-trityl-a -glutamyl-leucine dimethyl ester, N - trityl - a  - glutamyl - leucine and a  - glutamyl - leucine; (5) N - trityl - g  - glutamyl-leucine dibenzyl ester, N-trityl-g -glutamyl-leucine and g -glutamyl-leucine; (6) N-trityl - a  - glutamyl - tyrosine methyl ethyl ester, N - trityl - a  - glutamyl - tyrosine and a  - glutamyl - tyrosine; (7) N - trityl g  - glutamyl-tyrosine dibenzyl ester and g -glutamyl-tyrosine.  Details are also given of the preparation of glycine benzyl ester, leucine methyl ester, tyrosine ethyl ester (from their hydrochlorides), and the a -methyl, a -ethyl and a -benzyl esters of N-trityl glutamic acid; the a -methyl and a -ethyl esters form salts with D-(-)-threo-1-p-nitrophenyl - 2 - aminopropane - 1 : 3 - diol (see Specification 826,926).  In general the esterifying groups can be methyl, ethyl, propyl, butyl isobutyl, benzyl, phenyl or cyclohexyl.  Specification 791,319 also is referred to.