baber/WOPTO huggingface dataset:
Patent GB-851923-A (GB)
Title: Improvements in or relating to radomes
IPC: H01Q1/42
Filed: 1958-03-18
Abstract: 851,923. Aerial housings. GENERAL ELECTRIC CO. Ltd., and CORNBLEET, S. March 25, 1959 [March 18, 1958], No. 8731/58. Class 40(7). [Also in Group VIII] A radome is formed from wall material consisting of at least four layers of solid dielectric material spaced apart from one another through the thickness of the wall by regions having a substantially lower dielectric constant. The relationship between the layer thicknesses and the wavelength of the energy to be transmitted is so chosen that the wall is effectively homogeneous to the wave energy with an apparent dielectric constant substantially less than that of the solid dielectric material. Radomes of adequate strength and wide electrical bandwidth can be made from such wall materials. In a wall material suitable for use up to 18,000 megacycles per second eight layers of fibre-glass, each of thickness 0À005 inches, are used spaced apart by seven layers of nitrile rubber. The nitrile rubber layers may be 0À063 inches thick and bonded to the fibre-glass by very thin layers of an adhesive having a low dielectric loss. The dielectric constants of the fibre-glass and nitrile rubber layers are respectively 4 and 1À2 giving an apparent dielectric constant of 1À4 for the wall. If the overall wall thickness is made half of the proposed operating wavelength in material having this dielectric constant there will be a high percentage power transmission even up to angles of incidence of 60 degrees. The dielectric medium between the solid dielectric layers may be expanded by foaming.
Patent GB-569878-A (GB)
Title: Improvements in or relating to the production of films, filaments and like shaped products of cellulose ethers
IPC: D01F2/28
Filed: 1943-06-02
Abstract: Filaments, films, sheets, tubes, yarn and the like of improved physical properties are obtained by extruding alkaline aqueous solutions of an alkali soluble, water - insoluble cellulose ether into a coagulating bath and wet-stretching the product so formed in the presence of urea.  Specified cellulose ethers are lowly methylated methyl cellulose, ethyl cellulose, glycol cellulose, cellulose glycollic acid and sodium cellulose glycollate.  Urea may be introduced into the spinning dope, or the coagulating bath, or the coagulated product may be treated in an aqueous urea bath. The material may be stretched in transverse and longitudinal directions. Specified coagulating liquids are salt baths such as sodium sulphate or sodium carbonate, sodium hydroxide with sodium sulphate, and acid baths such as sulphuric acid.  The stretched material is preferably washed, softened and dried.  Examples are given in which (1) a solution of methyl cellulose in aqueous sodium hydroxide is extruded into an aqueous bath containing sodium hydroxide and sodium sulphate. The coagulated product is passed through a sodium sulphate bath, a water-wash bath, and an aqueous urea bath.  The product is then immediately stretched, washed, softened with a solution of glycerol and dried; (2) urea is added to the coagulating bath; (3) urea is added to the spinning dope; (4) urea is added to the spinning dope, and the coagulated product is subsequently treated in an aqueous urea bath; (5) methyl cellulose yarn is stretched in an aqueous urea bath, washed and dehydrated with ethylene glycol monomethyl ether.
Patent GB-421024-A (GB)
Title: Improvements in medical irrigation apparatus
IPC: A61M3/02
Filed: 1934-03-21
Abstract: 421,024. Medical irrigation apparatus. FRUMUSANU, (known as FRUMASAN), J., 43, Avenue Pierre Ier. de Serbie, and SUAREZ DE MENDOZA, F. F. D., 52, Rue Francois Ier, both in Paris. March 21, 1934, No. 8850. [Class 81 (ii)] In intestinal or stomach irrigation apparatus u partially evacuated metal or glass reservoir 61, and a glass reservoir 62 containing air under pressure, are connected, by pipes 14, 18, to a three way cock 12 whereby either may be connected at will with a rectal or other nozzle 7, and, by pipes 64, 67, to a pump 63 which produces the required suction and pressure. Pipe 67 contains an air reservoir 66 having a valve 68 for regulating the pressure between 1À5 and 3 metres of mercury, and reservoir 61 has a valve 77 maintaining the vacuum at 35 cm. of mercury. For one setting of the cock 12 the pressure in reservoir 62 forces irrigation liquid therein through pipe 14, a sight feed, comprising an inverted glass vessel 45 screwed into a socket, and thence through cock 12 and a pipe 15 to the nozzle 7. On reversing the cock the liquid is withdrawn by the vacuum, through pipe 11 and a vessel 10, to reservoir 61. Reservoir 62 carries a thermometer 80 and a liquid-level operated blow-off valve 82. Reservoir 61 has a drain pipe 70 controlled by a cock 71 coupled with a cock 72 in a leak pipe. The reservoir is also furnished with a gauge 76, a flushing pipe 75, and an indicator for the presence of liquid, comprising a pair of plates 73, extending almost to the bottom of the reservoir, electric current passing across which, in the presence of liquid, lights a lamp 74 thus giving an assurance that cock 71 is closed during the irrigation. The vessel 10 comprises a glass cover secured to a base by a detachable clamping ring, the base carrying the drain off pipe 18 controlled by a cock 19<1> and having passing therethrough a lead-in pipe 91 bent over at its upper end, a vacuum equalizing pipe 93, and a siphon pipe 92 which leads into pipe 18 below cock 19<1> and ensures emptying of the vessel when the cock is closed. A strainer permitting retention and inspection of solid matter may be mounted in the vessel beneath pipe 91. The cock 12 is held in its on and off positions by a spring and ball detent. In order to inject a vaccine or medicament two ampoules 84e, 84f connected by a pipe 84<g>, are mounted in conical sockets one on each side of a cock 84<h> in the pipe 15. On opening taps in the sockets and closing cock 84<h> air in ampoule 84<f> can be forced into ampoule 84<e> thus forcing the medicament &c. contained therein into the pipe 15 and thence into the body. The cock 84<h> may also be employed to control the flow of irrigation liquid. The apparatus may be mounted in a compartmented cabinet containing one above the other the pump 63, the reservoir 66, the reservoir 61, and the reservoir 62, the parts 10, 45, 12, and 84<e>, 84<f> being mounted upon a laterally-projecting cylindrical housing for the flexible tubes employed.
Patent GB-567892-A (GB)
Title: Manufacture of halogen-8-hydroxyquinaldines
Filed: 1943-06-03
Abstract: Halogeno - 8 - hydroxyquinaldines, useful as bactericides in the treatment of wounds, are made by treating 8-hydroxyquinaldine with chlorine or bromine.  The reaction is advantageously effected in a solvent not affected by halogenation, such as glacial acetic acid or formic acid.  In an example of the production of the 5-7-dichloro derivative, 8-hydroxyquinaldine is dissolved in formic acid and chlorine is introduced into the cooled solution until the increase in weight is sufficient to indicate the end-point of the dichlorination, whereupon the excess chlorine is removed by sodium bisulphite solution.  The Specification as open to inspection under Sect. 91 comprises also similar halogenation in general.  This subject-matter does not appear in the Specification as accepted. 8-Hydroxyquinaldine is obtained by oxidizing a mixture of o-aminophenol and crotonaldehyde with o-nitrophenol in aqueous sulphuric or hydrochloric acid.
Patent GB-906446-A (GB)
Title: Reciprocating pumps
Inventor: WILLSHAW PHILIP JOSEPH STRETTO
IPC: F04B9/14
Filed: 1960-03-14
Abstract: 906,446. Reciprocating pumps. DIVERSEY (U.K.) Ltd. March 7, 1961 [March 14, 1960]. No. 8945/60. Class 102 (1). [Also in Group XXVI]. The flexible outlet tube 6, from the hollow piston rod 4 of a dispensing pump, is supported on a cap 12 secured to the pump barrel, by a clip 13 which prevents movement of the free end during reciprocation of the rod 4. The cap 5, which is adapted to engage the mouth of a container, and the pump barrel are of plastic. The plunger seal is clamped between the plunger and a separately formed portion 2, which are cemented together.
Patent GB-830831-A (GB)
Title: Polymerization of olefins
IPC: C08F10/00
Filed: 1957-03-19
Abstract: Olefins such as ethylene, propylene, butylenes or dienes are polymerized using a catalyst comprising an organometallic compound of aluminium, an alkali metal or an alkaline earth metal and a compound of a metal of Group IVa, Va, VIa or VIII, and in the presence of 100 to 2000 parts of added oxygen per million parts of olefin.  The oxygen which may be added as air, may be mixed with the diluent or the olefin and may be added intermittently or continuously. Polymerization may be batchwise, continuous or with continuous addition of olefin, and is preferably in the presence of an inert organic medium.  If desired, the catalyst may be pretreated by heating and may be used in an amount adequate for feed streams containing water and carbon dioxide.  Alcohols such as isopropyl and butyl alcohols may be used in the subsequent deactivation of catalyst.  In an example other features specified are the purification of the ethylene feed with aluminium triisobutyl, the use of pure heptane as diluent, and the drying of the air used as the oxygen source.  Products of M.W. from 20,000 to 300,000 may be obtained.
Patent GB-510739-A (GB)
Title: Improvements in or relating to clocks and watches
IPC: G04B19/20
Filed: 1938-03-24
Abstract: 510,739. Clocks and watches. WACHTEL, P. G. March 24, 1938, No. 9015. Convention date, Jan. 17. [Class 139] The hour numerals 1-12 are marked on an intermittently rotated hour disc 3 and appear successively in a window 2 of a fixed dial 1 on which the minute hand 4 rotates continuously, and additional designations such as " a.m. and " p.m. " are provided to identify the twelvehour period. The hour disc 3 has eleven spokes 5 and a larger spoke 25. Once an hour cam 8 on the minute-hand arbor 6 allows pin 9 and bellcrank 11, 12 to rise under the action of spring 24 so that lever 13, pivoted at 16 to arm 12, is rocked and its pallets 14, 15 allow disc 3 to escape one step clockwise, Fig. 3, under the drive of a spring (not shown). At the end of twelve hours the long spoke 25 meets one of the arms 26 on a disc 27 marked " a.m. " and " p.m." so that the designation is changed at a window 2a. 29 is a centre-seconds hand.
Patent GB-1076778-A (GB)
Title: Photographic materials containing nuclei and an inhibiting compound
Inventor: JR PAUL BREWSTER GILMAN
IPC: G03C8/04
Filed: 1963-12-13
Abstract: Nickel sulphide is prepared (Example 1) by adding an aqueous solution of a water-soluble nickel salt e.g. nickelous nitrate to an aqueous solution of sodium sulphide in the presence of gelatine.  The suspension of NiS in aqueous gelatine is used to form photographic materials (see Division G2).
Patent GB-1299957-A (GB)
Title: Radar pulse arrangement
IPC: G01S7/28
Filed: 1970-02-25
Abstract: 1299957 Measuring duration TELEFONAKTIEBOLAGET L M ERICSSON 25 Feb 1970 [26 Feb 1969] 9191/70 Heading G4H [Also in Division H4] In a circuit for determining the position of the pulse centre or the pulse duration of a radar echo, the echo pulse is applied to an AND gate G together with pulses from a generator A of duration less than the briefest echo pulse, and the output of gate G ("sub-pulses") is applied to a counter R1which, each time its count passes a maximun upwardly or downwardly, passes a pulse to a counter R2; when inputs S1 are activated the contents of the counters are reduced by incoming pulses but when inputs S2 are activated the contents are increased. The content of counter R2 is fed continuously to comparator J to which is fed the content of a counter R3; for determining the echo pulse centre pulses are applied to counter R3 from generator A beginning with a radar pulse transmission and at some instant thereafter there is coincidence between the contents of counters R2, R3 whereupon a pulse from comparator J causes a bi-stable V to activate input S2. Echo pulses are applied also to an indicator C together with the output from comparator J; the latter controls also a generator B to produce a gate pulse for limiting operation to part of a radar pulse repetition period. For determining the average pulse duration counter R3 starts counting when the first "sub-pulse" leaves gate A i.e changeover of bi-stable V occurs when the content of counter R2 indicates half the received echo pulse duration.
Patent GB-177797-A (GB)
Title: Apparatus for converting rapid rotary motion into slow rectilinear motion
IPC: G05D13/10
Filed: 1922-03-30
Abstract: 177,797. Parent, L. March 31, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Link-work.-A non-rotary member 21 mounted in a bearing 22 is coupled bv a fork 20 to a collar 13 on a motor shaft 6, the collar being pressed outwards by a spring 23 and connected by links 11, 12 to centrifugally acting weights 9, 10 slidable on radial arms 7, 8 so that on the motor 1 being set in motion, the member 21 is drawn towards the motor.
Patent GB-556565-A (GB)
Title: Application of fluorescent material to electron tubes
IPC: H01J9/22
Filed: 1942-07-03
Abstract: 556,565. Ornamenting. STANDARD TELEPHONES & CALBES, Ltd. July 3, 1942, No. 9211. Convention date, July 5, 1941. [Class 93] [Also in Group XL] Fluorescent powder is blown by compressed air from the container 4 through holes 9 on to a sodium silicate layer on the end 2 of the cathode ray tube ; while this is proceeding the container is vibrated by some means 13 to prevent collection of the powder on the outside of the container and the consequent flaking off in large bodies if such collection were allowed.
Patent GB-1421088-A (GB)
Title: Weapon turret
IPC: F41H5/22
Filed: 1974-02-28
Abstract: 1421088 Turret FRANCE ARMED FORCES MINISTER OF 28 Feb 1974 [8 March 1973] 9215/74 Heading F3C A turret having a weapon 2, Fig. 1, coupled therewith is provided with a hatch 8 having a pivotally mounted cover 9, and means for releasably connecting the weapon and the cover so that they can be pivotally moved together. The weapon 2 may be carried by a cradle 3 which is pivotally mounted at 4 to the turret. The hatch 8 is provided in the roof 1 of the turret. The cover 9 is an armoured shield and pivots about an axis 10. The releasable connecting means comprises a spindle 11 which is rotatably mounted in the cover and has a handle 14 and a member 12 secured thereon, and a guide-track 13 supported by the cradle 3. The cover 9 is connected to the weapon 2 when the member 12 is received in the guide-track 13 and the opening of the cover 9 is limited by a stop 13a. The handle 14 may be rotated to release the member 12 from the guide-track 13 and thus allow the cover 9 to move to the position shown in Fig. 2. Further engagement of the member 12 and the guide-track 13 is prevented until the handle 14 is returned to the position shown in Fig. 1. The cover is secured in the closed position by a latch 16 which is mounted thereon and a keeper 21 which is fastened to the roof 1. The latch 16 has a bolt 17, Figs. 5 and 6, which is slidably mounted in a guide 18, is urged by a spring 19 and is provided with an inclined face 17a. The keeper 21 is recessed at 20 to receive the bolt 17 therein. The latter has a recess formed therein to receive a member 24 which is carried by a spindle 22 rotatable by a handle 23 from within the turret. In use the weapon is moved in elevation by a gear mechanism 5, 6, Fig. 1, which is operable by a hand wheel 7.
Patent GB-438787-A (GB)
Title: Improvements in controls for engine starting systems
IPC: F02N11/08
Filed: 1934-03-24
Abstract: 438,787. Starting prime movers. ECLIPSE MACHINE CO., Elmira, New York, U.S.A. March 24, 1934, No. 9291. Convention date, March 25, 1933. [Class 38 (iv)] In a starting system for an internal-combustion engine 1. Fig. 1, means responsive to the engine intake vacuum cause the energization of the electromagnetic starting switch 5 to be reduced to a holding value during cranking and cause the switch 5 to be deenergized when the engine commences to run. Closure of the manual (ignition) switch 8 completes a control circuit through coil 11 and vacuum chamber 13 to earth closing switch 5 for starting motor SM which cranks engine 1 and produces a reduction of pressure in intake manifold 36 connected to chamber 13. As pressure falls diaphragm 19, Fig. 2, moves downwards and acts first to separate contact 25 on terminal 23 from contact 31 carried by spring 28 so throwing resistance 27 into the control circuit and reducing current through coil 11 to a hold-on value only. Downward movement of spring 28 is limited by stops 35 but such further reduction of pressure as is produced when the engine 1 starts causes further movement of diaphragm 19 against adjustable spring 45 so that contact 33 on diaphragm 1 moves away from contact 32 on spring 28 de-energizing coil 11 and breaking circuit to starting motor SM which latter cannot be again energized till contact is made again both between 25 and 31 and between 32 and 33. If engine stalls and vacuum fails there is slow leak past valve 38 and contacts 25, 31 and 32, 33 are reclosed, switch 5 being again fully energized after a time delay that ensures engine having come completely to rest.
Patent GB-983469-A (GB)
Title: Axial flow fan
IPC: F04D19/00
Filed: 1963-03-08
Abstract: 983,469. Axial-flow fans. A. DE JONG N.V. March 8, 1963 [March 9, 1962], No. 9297/63. Heading F1C. In an axial-flow fan of the type comprising a ring of stationary guide blades behind the rotor hub and adjacent a diffuser having a straight axial outlet, the guide blades are curved and twisted, with concentric cross-sections decreasing in size radially outwardly from the fan axis, and extend substantially fully from inlet to outlet of the diffuser, the leading edges of the guide blades being inclined rearwardly, radially outwardly from the fan axis, and reaching the wall of the diffuser near its outlet opening. The fan shown comprises a casing 2 which is mounted in a conduit by means of flanges 3, 4. Curved and twisted guide blades 13 of laminar or profiled form and tapering from root to tip are used to support the motor casing 12 within the diffuser 6. The leading edges 14 of the guide blades are inclined rearwardly from root to tip, at an angle which may be about 40 degrees with respect to the fan axis, and join the diffuser wall near the outlet opening.
Patent GB-305867-A (GB)
Title: Improvements in a flexible coupling for pumps and the like
IPC: F16D3/205
Filed: 1928-03-27
Abstract: 305,867. Dehn, F. B., (Penberthy Injector Co.). March 27, 1928. Driving - gear. - In shaft couplings for supporting and driving, for example, the vertical shaft 3 of the impeller of a rotary sump pump such as is .described in Specification 298,859 from the motor shaft 5, the shafts, or members secured thereto, are screwed together and secured by a split pin 11 passed through a hole, or one of a series of holes, in the inner member into slots 10 in the outer member, so that axial or helical adjustment between the shafts is provided. The screwed surfaces are made to fit loosely so as to provide slight universal flexibility in the joint, although sufficient rigidity is provided to obviate the need of a bearing between the joint and the impeller.
Patent GB-515300-A (GB)
Title: Improvements in and relating to garment or like presses
IPC: D06F71/06
Filed: 1938-03-26
Abstract: 515,300. Dash-pots. BAKER PERKINS, Ltd., (Prosperity Co., Inc.). March 26, 1938, No. 9377. [Class 108 (iii)] [Also in Group VIII] The . opening and closing movements of an ironing press are controlled by a dashpot having two cylinders 140. 147 provided with plungers 141, 146 reciprocated by a pinion 183 engaging rack teeth on the plungers. During the closing movement the plunger 146 is forced down at a minimum rate governed by a part 160 in the plunger. This rate may be increased by adjusting a screw 148 to lift a check valve 162 from its seat to any desired extent. During the opening movement the plunger 141 is forced down and moves freely at first, liquid passing through an axial bore 156 and ports 157 in the plunger until the bores closed by a fixed pin 154. Further downward movement of the plunger is governed by the rate at which liquid can escape past a check valve 152, this being adjusted by a screw 143 which can hold the valve off its seat to any desired extent.
Patent GB-1011717-A (GB)
Title: Railroad crossing protection system
IPC: B61L29/28
Filed: 1964-03-05
Abstract: 1,011,717. Level crossing control arrangement SOUTHERN PACIFIC CO. March 5, 1964 [Sept. 30, 1963], No. 9410/64. Heading B7N. The level crossing control arrangement disclosed in Fig. 3 of Specification 923,089 is modified by the inclusion of means comprising quadrature detecter 178 and phase-shift network 179, for deriving the reactive component of the voltage which is a function of the distance between a crossing and an approaching train. This derived voltage is then used as the input voltage L to a computer which produces an output signal when L-30 dL/dt = O which dt operates the crossing gates 30 seconds before the train arrival.
Patent GB-590156-A (GB)
Title: Fluid transmissions such as torque converters
IPC: F16H61/54
Filed: 1945-04-17
Abstract: 590,156. Fluid torque converters. CLEVELAND, F. J. (Bendix Aviation Corporation). April 17. 1945, No. 9546. [Class 69 (ii)] A fluid torque converter wherein the effective blade area of the impeller is automatically variable in accordance with changes in the relative speeds of rotation of the impeller and the turbine. The blades 60 of the impeller support an annular ring 62. Pivoted on the ring is a lever 64, one end of which supports an annular shroud 66 having mounted therein blades 68, the other being connected to an inner shroud 70 of the impeller by a toggle 72. The ring 62 has pins 74 therein adapted to cooperate with slots 76 in the shroud 70. A spring 78 mounted between the shrouds 66 and 70 serves to retain the latter in the retracted position on the blades 60. The inner shroud 88 of the turbine has affixed thereto a shroud 64 mounting blades 106, adapted to provide in co-operation with the shroud 66 and blades 68 a fluid coupling. The blades 68 and 106 rotate concomitantly with the impeller and turbine respectively, the fluid drag imposed on the blades 68 overcomes the resistance of the spring resulting in relative rotation between the blades and the impeller, and hence causing movement of the liner and toggle to effect an axial movement of the shroud 70, thereby reducing the operating area of the impeller blades. As the operating ratio approaches 1 : 1, the fluid drag on blades 68 subsides, whereupon the vanes 106 and 68 rotate at approximately the same speed and the spring acts to retract the shroud 70 to its normal position, thus providing increased blade area on the impeller.
Patent GB-407201-A (GB)
Title: Improvements in and relating to aerials for wireless reception
IPC: H01Q1/08
Filed: 1933-03-30
Abstract: 407,201. Aerials. EWEN, H. A., Grey Walls, Priest Lane, Shenfield, Essex. March 30, 1933, No. 9577. [Class 40 (v).] An indoor aerial Sn is made sufficiently flexible and rigid to remain in a more or less vertical position when pushed up a chimney or ventilating-shaft. As shown in Fig. 1, it is built up of coupled lengths of brass rod, each carrying an insulating-ball B1, B2, B3, &c. The top ball B1 facilitates insertion, whilst the end ball Bn rests on a supporting and insulating plate SP at the base of the chimney. Connection to the set terminal TB is made by a lead C, Fig. 3, fastened to the aerial as shown.