baber/WOPTO huggingface dataset:
Patent GB-619460-A (GB)
Title: Compositions and methods for forming films for use as dental separators
IPC: A61K6/898
Filed: 1946-12-11
Abstract: A suspension in water for forming a separating dental film over the calcium containing investment material and not on the pins, teeth or other articles to be associated in the mould comprises algin and potassium phosphate which prevents the algin entering into solution, and sodium citrate which is adapted to attack the calcium in the investment material and releases calcium ions which overcome the inhibitory function of the potassium phosphate, permitting the algin in suspension in the water, to enter into solution and form a film on the investment material after evaporation of the water.  Over the parts such as teeth &c., not containing calcium, this action does not take place and no film is formed.  A wetting agent such as a sulphonated alcohol, may also be used.  Potassium, sodium or ammonium alginate may be used in place of algin.
Patent GB-906450-A (GB)
Title: Improvements in or relating to velocity responsive radio devices
Inventor: HARDING ANTHONY ALLAN
IPC: G01S13/58
Filed: 1955-12-21
Abstract: 906,450. Radio navigation. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. July 19, 1956 [Dec. 21, 1955], No. 36640/55. Class 40 (7). To determine the velocity of a craft travelling through the ionosphere a plurality of radio waves of adjacent very high frequencies are transmitted and the sum of the fractional Doppler shifts corresponding to phase velocity and to group velocity is ascertained. From a ground station using a 10 mc/s. oscillator G1, continuous waves of 290 and 310 mc/s. are transmitted to a body, such as a guided missile, where they are amplified in narrow pass-band amplifiers B2, B3, and combined and detected at B4 to provide an output of 20 (1+dg) mc/s. where dg is the fractional Doppler frequency shift corresponding to group velocity. Using a frequency multiplier B6 with a factor of 15 the signal is then retransmitted and is received and detected at G7 as having a frequency of 300 (1+dg+dp) mc/s where dp is the fractional Doppler frequency shift corresponding to phase velocity. This frequency is mixed with an original 300 mc/s. at G8 to provide a resultant signal which is a measure of the relative velocity of the body and is indicated or otherwise utilized. In a first modification a single wave of 300 mc/s. is transmitted to the body, which in turn transmits two sideband frequencies of 290 (1+dp) and 310 (1+dp) mc/s. In a second modification transmission is only from the body, sidebands of 290 and 310 mc/s. being transmitted, together with the carrier. In this case outputs of 10 (1+dg) mc/s. and 300 (1+dp) are obtained and after frequency dividing and two stages of mixing a frequency of 10 (dp+dg) mc/s. is obtained.
Patent GB-449182-A (GB)
Title: Manufacture of substituted aminochrysenes
Filed: 1934-12-21
Abstract: Dinitrochrysenes are treated with reducing agents to give aminonitrochrysenes and diaminochrysenes.  The same products may be obtained also by acylating a monoaminochrysene, with acetyl, benzoyl or naphthoyl groups, for example, nitrating, and saponifying or reducing and saponifying the product.  According to examples: (1) dinitrochrysene (obtainable by nitrating chrysene), is reduced with sodium sulphide, to give the diaminochrysene, and reduced with sodium sulphide and sulphur to give an aminonitroderivative; (2) the aminonitrochrysene is reduced with hydrogen in presence of nickel to the diaminoderivative; (3) acetaminochrysene is nitrated, and saponified, or reduced, and then saponified to give the acetaminonitroderivative, the aminonitro-, the acetamino-amino-, and the diaminoderivatives respectively.
Patent GB-1017283-A (GB)
Title: Improvements in or relating to the vaporisation of metal and production of metallic dust therefrom
Inventor: DERHAM LESLIE JACK
IPC: C22B19/04
Filed: 1962-09-27
Abstract: A method of vaporizing metals comprises passing the liquid metal over the surface of an inert packing material in a stationary packed column, heat being simultaneously supplied directly to the metal film by means of electrical power via electrodes.  The column is preferably packed with sized coke and the metallic vapour (e.g. Zn or Cd) is preferably supplied to a condensation system in an inert gas which latter is recirculated to shock chill the metallic vapour to provide metallic dust.
Patent GB-867473-A (GB)
Title: Improvements in or relating to apparatus for use in the removal of impurity from gases
Inventor: MILNER GEOFFREY
IPC: C10K1/22
Filed: 1959-10-31
Abstract: 867,473. Gas purifiers. POWER-GAS CORPORATION Ltd. Oct. 31, 1959, No. 37028/59. Class 55 (2). A gas-purifier containing two. layers of purifying material has a series of troughs 12 extending across the purifier and deflecting members 11, 11a to collect condensate condensing in the upper layer of purifying material, the condensate being discharged at each end of the troughs via a channel 13 and a pipe 16 to a seal pot 18. Condensate from the lower layer of purifying material is discharged into pipes 16 and the seal pots 18 via outlets 15. Gas connections 8, 9 and 10 are provided so that the gas may pass upwardly or downwardly and in series or parallel through the layers of purifying material. In a modification the deflecting member is of inverted frusto-conical shape and the condensate collector is funnel-shaped. The purifier may have more than two layers of purifying material, in which case a condensate collector is provided beneath each layer except the bottom one.
Patent GB-1473450-A (GB)
Title: Combustion driven nf3 chemical laser
IPC: H01S3/223
Filed: 1975-09-09
Abstract: 1473450 Lasers TRW Inc 9 Sept 1975 [11 Sept 1974] 37111/75 Heading H1C A combustion driven chemical laser comprises a combustor 2 in which continuously introduced reactants comprising nitrogen trifluoride and a source of one isotopic form of the element of atomic number one are ignited, and an optical resonator cavity 3 into which atomic and molecular fluorine pass from the combustor, the fluorine atoms and molecules being combined in the cavity with another preheated isotopic form of the element of atomic number one to produce a population inversion reaction of vibrational excited molecules; the population inversion developing stimulated emission of radiation between resonator mirrors 13, 14 while the gaseous products of the reaction are continuously removed from the cavity. The reactants are fed to the combustor through ports 5 and 6 and an inert diluent gas such as air, nitrogen or helium may be introduced through port 7. The source of the isotopic form of element, which may be hydrogen or deuterium, is selected from hydrogen, ammonia, hydrazine, acetylene, benzene and their deuterated isotopes. Ignition is effected either by preheating the isotopic source or by a hot glow ignitor 10. The reaction gases from the combustor are driven through nozzles or orifices 2 at supersonic speed into the resonator cavity, where they react with additional hydrogen or deuterium source gas separately injected through secondary nozzles 4. The additional source gas is preheated in an inlet path from a port 8 by passing through a coil 9 in the combustor walls, the coil providing a heat exchanger for cooling the combustor surfaces and serving to dissociate the additional source gas. The resonator cavity is coupled to a constricted exit portion 15 through which the exhaust gases are pumped. Two operating modes are available, one being an HF* lasing mode in which the additional source gas is hydrogen which reacts with the fluorine component injected into the cavity from a combustion phase involving reaction of nitrogen trifluoride with deuterium. Alternatively a DF* lasing mode is obtained by the injection of hydrogen and deuterium into the combustor and cavity, respectively.
Patent GB-449481-A (GB)
Title: Trailer coupling for vehicles
IPC: B60D1/50
Filed: 1934-12-28
Abstract: 449,481. Separable ball-and-socket joints. KOZIOL, V., 6, Frobenstrasse, Breslau, Germany. Dec. 28, 1934, No. 37217. Convention date, Dec. 29, 1933. [Class 65 (ii)] [See also Group XXXII] In a ball-and-socket coupling for trailer vehicles, the shank 10 of the ball member 9 is resiliently mounted between rubber rings 11 of circular or other cross section compressed between dished washers 14 on the shank and a double-dished opening 13 in a coupling bracket 12, the washers 14 being held between a shoulder on the shank and a nut 15. The ball 9 is engaged by partspherical members 3, 4, the member 3 being secured within the end of a U-shaped strap 2 attached to a drawbar 1, whilst the member 4 is slidable therein, being hold in engagement with the ball by the claw end of a hand lever 5, as shown. Upon raising the handle, the claw engages a part 4<a> to withdraw the member 4, a spring 8 retaining the handle in either of its two positions. The Specification as open to inspection under Sect. 91 comprises also arrangements such as shown in Fig. 4 (Cancelled), in which the shank is supported by coiled metal springs. This subject-matter does not appear in the Specification as accepted.
Patent GB-820968-A (GB)
Title: A platform for use in dropping wheeled vehicles by parachute from aircraft
IPC: B64D1/14
Filed: 1956-12-05
Abstract: 820,968. Cradles for slinging vehicles. BLACKBURN & GENERAL AIRCRAFT Ltd., and CLARK, F. M. Nov. 13, 1957 [Dec. 5, 1956], No. 37225/56. Class 78 (4). A platform for use in dropping wheeled vehicles by parachute from aircraft comprises side members 1, 2 joined by two structures each comprising members 4, 5 joined by transverse members 6, 7, 8, 9. Each pair of transverse members supports a pad 14 of crushable material such as resin-bonded paper honeycomb, the landing shock being transmitted by stout upper sheets 12 on which the vehicle wheels rest. A light under-sheet 13 may be provided, and the whole under-surface of the platform may be covered with plywood or sheet metal to resist digging into the ground. The joining structures are adjustable along the side members 1, 2 and the transverse members 6, 7, 8, 9 are adjustable along the members 4, 5. Guides 3 co-operate with guiding means in the aircraft. The spaces between and beyond the sheets 12 may be bridged for the purpose of driving or running the vehicle on to the platform. Specifications 782,640, [Group XXXIII], is referred to.
Patent GB-1517544-A (GB)
Title: Antenna system for use as side-lobe control means
IPC: G01S13/87
Filed: 1975-09-10
Abstract: 1517544 Aerials THOMSON CSF 10 Sept 1975 [13 Sept 1974] 37316/75 Heading H4A An antenna for use in the side lobe suppression channel of a secondary radar and providing a radiation pattern which overlaps the side lobes of the radar comprises a radiating element 5 and passive reflector element 10 mounted on a reflective plate 12. For the stated use, the antenna is mounted at or near the top edge of the single common reflector dish of a primary and a secondary radar (Fig. 1, not shown) so that the cusp in the approximately-cardioid pattern of the antenna coincides with themain lobe of the secondary radar. As shown, element 5 is a quarterwavelength skirted one, is spaced from reflector 10 by a quarter-wavelength, and is fed by a co-axial line including impedance-matching transformer 7. Quarter-wavelength chokes 6 and 9 of cylindrical and radial form respectively are provided. Element 5 is housed in a dielectric radome 8.
Patent GB-1066950-A (GB)
Title: Aerosol valve
IPC: B65D83/16
Filed: 1964-09-14
Abstract: 1,066,950. Valves. R. H. ABPLANALP. Sept. 14, 1964 [Sept. 23, 1963], No. 37424/64. Heading F2V. An aerosol valve comprises a housing 2 having an inlet 3 and an open top. A resilient annular disc 8 extends across the open top and is secured at its periphery to the housing. A valve body 5 is loaded by a spring 105 so that a shoulder 7 of the body normally engages the disc. The body 5 also has a stem 6 extending through an aperture in the disc so that the disc resiliently engages the stem. An operating button 12 fits over the stem and has a tapered end portion 16 which. extends into the aperture of the disc. One or more grooves 17 in the stem or button provide the flow passages to the outlet 14. When the button 12 is depressed the body 5 moves away from the disc and the tapered portion 16 flexes the disc to allow flow through the grooves 17. Stops 102 prevent excessive movement of the valve body 5. In a modification, an actuating button is provided having an axial outlet.
Patent GB-1105290-A (GB)
Title: Control system for the electrode feed movement of electric arc furnaces
IPC: H05B7/109
Filed: 1965-09-02
Abstract: 1,105,290. Automatic control systems. WIENER SCHWACHSTROMWERKE G. m. b. H. Sept. 2, 1965 [Sept. 8, 1964], No.37558/65. Heading G3R.  The movement of each electrode in an arc furnace 1 is controlled by a controller 10 in dependence upon actual arc voltage and arc current, the input to the controller being derived from a voltage divider 8, 9; a signal proportional to arc current is applied to resistor 8 by way of a current transformer 3, a rheostat 4 and a rectifier 6; a signal proportional to the voltage applied to the electrode is derived from a potentiometer 5 and a rectifier 7 and is applied to resistor 9 so that it opposes the signal on resistor 8, the second signal being modified by a further signal developed across a resistor 14. This further signal, which represents the volt-drop in the electrode supply conductors &c. is derived from the current signal circuit by way of an adjustable resistor 11, a transformer 12 and a rectifier 13, and opposes the signal from rectifier 7 so that the voltage applied to resistor 9 is representative only of the actual voltage across the arc. The controller 10 operates a positioning motor or a hydraulic drive for adjusting the electrode. The current sensing circuit also includes a capacitor 15 which compensates for the inductance of the supply conductor connected to the electrode.
Patent GB-1312131-A (GB)
Title: Control valve for a vehicle levelling system
IPC: B60G17/052
Filed: 1970-08-04
Abstract: 1312131 Suspension levelling valves SCOVILL MFG CO 4 Aug 1970 [11 Aug 1969] 37617/70 Heading B7D A vehicle suspension levelling valve comprises a dashpot chamber 36 containing a dashpot vane 64, a valve chamber 42 containing a valve plate 30, a shaft 40 connected to the vane 64 and valve plate 30 and rotatable by a stiffly yieldable arm 16 in response to changes in the height of the vehicle frame F above the rear axle A, and two pairs of spring-loaded plastics bushings 46s, 78s and 48e, 76e disposed opposite one another on each side of the valve plate 30, the valve plate 30 having orifices which provide selective communication between the bushings 46s, 78s or 48e, 76e according to the rotary position of the valve plate 30 to supply compressed air to shock absorbers 14 to exhaust air therefrom. The bushes 75e, 78s are disposed in bores 76, 78 connected by a passage 80 and communicating with the shock absorbers 14 through a control port fitting 22 and pipes 20. The bush 48e is disposed in a bore 48 communicating with an exhaust fitting 56 containing a one-way valve. The bush 46s is disposed in a bore 46 communicating with a compressed air supply pipe 24 through a supply fitting 26 and a pressure regulating valve including a piston 57 which is displaced against the force of an adjustable loading spring 88 if the supply pressure is too high to close communication between the supply fitting 26 and the bore 46. The dashpot chamber 36 is filled with oil and the vane 64 has an aperture 66. The arm 16 is connected to a collar 90 on the shaft 40 by a stiff coil spring which bends to absorb transient movements of the arm since the oil in the dashpot chamber 36 offers a high resistance to rapid rotation of the arm. In another embodiment, Fig. 8 (notshown), the arm includes a rigid member which is rotatably mounted on the shaft and carries a spring-loaded plunger bearing against a flat on the shaft.
Patent GB-1117483-A (GB)
Title: Improvements in transmissions for producing reciprocating movement
IPC: F16H21/42
Filed: 1965-09-03
Abstract: 1,117,483. Converting rotary into reciprocating motion. UNION SPECIAL MASCHINENFABRIK G.m.b.H. 3 Sept., 1965 [24 Sept., 1964], No. 37652/65. Heading F2K. The end 6 of a connecting rod 5, driven by an eccentric 2, is constrained to linearly reciprocate by a bush 7 therein with a diametral slot 8 slidably engaging a block 14 on the end of an angularly adjustable shaft, and the amplitude and phase of the reciprocation are altered by adjusting the angular position of the block 14. The reciprocation of the end 6 is transmitted by a link 11 to a bell-crank 12 or push rod. The bush 7 bears in a lateral tubular bearing 9 of the link 11 which is pivoted in the end 6. The block 14 may be formed on the bush 7 and engaged with a slot in the end of the angularly adjustable shaft.
Patent GB-1044288-A (GB)
Title: Power devices suitable for operating hand tools
Inventor: HALEY EMMETT LEELAND
IPC: B25C1/04
Filed: 1964-09-17
Abstract: 1,044,288. Nailing machines. GENERAL WIRE OVERSEAS CORPORATION. Sept. 17, 1964, No. 37998/64. Heading B4C.  A power-operated device for driving nails, comprises a drive piston 18 having a head 65 movable in a cylinder 76 and an accumulator piston 71 also movable in the cylinder and urged into contact with the drive piston head by a pressurized gas in a chamber 85, a pump 50 being provided for introducing a pressurized liquid into the cylinder for moving bothpistons against the pressure of the gas. The drive piston is slidable in a bore in a housing 11, the piston head 65 is normally held in a chamber 166 under the action of the accumulator piston 71. The pump 50 is driven by an electricallyactuated motor 49 and mounted, together, with a reservoir 98 on the housing, the liquid in the latter being pressurized, via a piston 150, 152, by a gas in a chamber 151. In operation, in order to load the device, a trigger 132 is pressed which first, via a rod 125, permits a valve 117 in the return circuit of the pump to close and then, second, actuate a switch 47 which closes the circuit of the pump motor 49. Liquid is then fed under pressure into the chamber 166 thereby forcing the drive piston 18 and accumulator piston 71 rearwardly against the pressure of the gas in the chamber 85. Towards the end of the stroke of the drive piston a hammer head 20 thereon abuts a switch lever 32 thereby stopping the pump; a nail may then be inserted into a barrel 22 which, when pressed against a structure, causes an abutment 36 on the barrel to actuate another switch 37 thereby again starting the pump. The drive piston then continues to move rearwardly until stopped by the abutment of the end of the hammer 20 with the housing 11. Since the liquid pressure is still acting on the accumulator piston, the latter is moved away from the drive piston head 65 so that the full pressure of the liquid may act on the head and move the drive piston rapidly forward on its working stroke. Upon release of the trigger, the valve 117 is opened so that the liquid in front of the accumulator piston may be returned to the reservoir 98 via passages 88, 122, 112 under the action of the pressurized gas in the chamber 85. In a modification, a relief valve may be incorporated in the drive piston head 65 so that the drive piston may commence its working stroke just before the hammer head 20 engages the housing. In a further modification, the gas pressure chambers may be interconnected, Fig. 5 (not shown).
Patent GB-1313323-A (GB)
Title: Method of producing a vesicular clay
IPC: C04B20/06
Filed: 1970-08-06
Abstract: 1313323 Rotary kilns DANSK LECA AS 6 Aug 1970 [6 Aug 1969] 38013/70 Heading F4B Vesicular clay is formed by heating clay or clay shale granules, over a period of more than 30 minutes to 300-600 C. in a slowly rotating drying kiln, and then to 1150-1175 C. within a 15 to 30 minute period in a transition zone formed by the downstream end of the drying kiln and the upstream end of a more rapidly rotating burning kiln into which the drying kiln leads. Steel heat exchange bodies are located in the transition zone adjacent to, but not touching the kiln lining 15. The bodies may comprise coils (not shown) or staggered double rings or ring segments 10a, 10b, 11a, 11b, mounted on supporting bars 12. Alternatively (Figs. 3 and 4, not shown) the bodies may comprise annular rows of interfitting trays (25, 26) secured through spacers (30) to the lining, adjacent rows of trays being bolted or riveted together, or (Figs. 5 to 7, not shown) single or double annular rows of spaced substantially horizontal bars (32) mounted between support rings (33) secured to the kiln lining. The bars may have circular or rectangular cross-sections, in the latter case (Fig. 8, not shown) being built up from parallel flat bands of good thermal conductivity, sandwiched between outer bands of high mechanical strength. Dimensional details of the bodies are given.
Patent GB-364807-A (GB)
Title: Improvements in or relating to the production of plastic masses from cellulose esters and ethers
IPC: C09B35/21
Filed: 1930-12-17
Abstract: A plasticizer for use in the production of plastic masses, films, lacquers, &c., from cellulose esters or ethers comprises an ether of glycerol, etherified by one or more molecules of glycerol or a glycol, and esterified in at least one hydroxyl group by a mono-carboxylic acid or acids excluding those containing more than one type of reactive group such as salicylic acid or benzoyl-benzoic acid.  Examples of such substances are diglycerol tetracetate, diglycerol triacetate, triglycerol triacetate, triglycerol tetracetate.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use as plasticizer of ethers of glycerol esterified in at least one hydroxyl group, diacetyl-diglycerol diacetylsalicylic ester being given as an example.  This subject-matter does not appear in the Specification as accepted.ALSO:A plasticizer for use in the production of plastic masses, films, lacquers, &c., from cellulose esters or ethers comprises an ether of glycerol, etherified by one or more molecules of glycerol or a glycol, and esterified in at least one hydroxyl group by a mono-carboxylic acid or acids excluding those containing more than one type of reactive group such as salicylic acid or benzoyl-benzoic acid.  Examples of such substances are diglycerol tetracetate, diglycerol triacetate, triglycerol triacetate, triglycerol tetracetate.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of plasticizers of ethers of glycerol esterified in at least one hydroxyl group, diacetyl-diglycerol diacetylsalicyclic ester being given as an example.  This subject-matter does not appear in the Specification as accepted.
Patent GB-862359-A (GB)
Title: Improvements in or relating to cylindrical rotary brushes
IPC: A46B13/00
Filed: 1959-11-10
Abstract: 862,359. Brushes. DROESER, W. Nov. 10, 1959 [Nov. 11, 1958], No. 38097/59. Class 19. To ensure an even distribution of bristles about the periphery of a rotary brush the bristle carrying strip wound on to the stock of a brush is formed of bristles 5 folded about a wire 10 laid in a channel, the upstanding edges 1, 3 of which are regularly apertured along the top to leave portions 2, 4 which are pressed inwards to cause the bristles to be clamped within the channel. The portions 2, 4 on opposite sides of the channel may be in opposition or staggered longitudinally of the strip. Several preferred embodiments are described in detail.