baber/WOPTO huggingface dataset:
Patent GB-1002191-A (GB)
Title: Improvements relating to spectroscopic analysis
IPC: H05H1/48
Filed: 1962-12-14
Abstract: 1,002,191. Discharge apparatus. HITACHI SEISAKUSHO KABUSHIKI KAISHA. Dec. 14, 1962 [Dec. 16, 1961], No. 47297/62. Heading H1X. [Also in Division H5] A plasma jet generator for use as a spectroscopic light source comprises a water-cooled anode 1 formed with an ejection nozzle 2 for the plasma jet, a rod-shaped cathode 3 concentric with the nozzle 2 and formed with a tip 4, a gas inlet 6 through which a stream 7 of an inert gas is provided to shield the electrodes 1, 2, and a side tube 10 for introducing samples into the plasma. The sample is first atomized by an inert gas, e.g. argon, and is then injected through the tube 10, the opening 11 of which is directed towards the high temperature region of the arc formed between the points 4 and 5 of the cathode and anode. The sample is swept through the nozzle 2, before it can reach the arc feet 4 and 5, by the gas stream 7 and is thus uncontaminated by the electrodes. The gas flow through the opening 11 tends to prevent wandering of the arc foot 5 and thus serves to stabilize the arc.
Patent GB-1452063-A (GB)
Title: Welding together two work pieces
IPC: B23K9/00
Filed: 1972-10-13
Abstract: 1452063 Welding by fusion; making parapet posts BRITISH ALUMINIUM CO Ltd 31 Oct 1973 [13 Oct 1972] 47351/72 Headings B3R and B3A A joint between a flange and an edge of a web, of a metallic structural member particularly of aluminium or aluminium alloy, is effected by insertion of said web edge into a recess in the flange and by welding (e.g. inert gas-shielded arc) from the side of the flange remote from the web. As shown in Fig. 5, the flange comprises two recesses 16, 17 respectively locatingly loosely accommodating the web edge, and allowing welding access and, preferably, receiving filler metal. The flange and web may be extruded, cast, machined or forged, or formed from pressed or rolled section. In Fig. 6 (not shown), a strip flange has an offset portion to provide the web edge receiving recess 16. In Fig. 7 (not shown), a strip flange is provided with parallel ridges defining the recess 16.  To produce tapered aluminium parapet posts 20, Fig. 2, an I beam is cut along its length at an angle to its axis to form two post members each comprising a flange 21 and web 22, and the free edge of the web of each member has welded thereto a flange 23 by the method of the invention. Each post is welded to a base 24 and carries three rails 25.
Patent GB-1083829-A (GB)
Title: Improvements in pick-ups
Inventor: LEHMANN RUEDIGER
IPC: G11B3/00
Filed: 1965-11-10
Abstract: 1,083,829. Adjusting gramophone pick-ups. DUAL GEBRUEDER STEIDINGER. Nov. 10, 1965 [April 3, 1965], No. 47686/65. Heading G5R. To adjust the anti-skating compensation on a pick-up arm 1, the stylus/arm assembly 17 is removed from the pick-up (or one like it used instead) and mounted in the device 4 which is mounted on the arm 1 to replace the pick-up cartridge. The arm 8 rotates horizontally, controlled by a spring about the pivot 1 and the left-hand end of the arm, acting as a pointer indicates the anti-skating force when a record groove is being played, Fig. 4 (not shown). The anti-skating compensating adjustments are made in known manner to the pick-up arm assembly until the pointer shows the same indication whether or not the record is turning. The assembly 17 is then replaced in the cartridge. The device 4 preferably is equivalent to the cartridge in all dynamic respects.
Patent GB-1192147-A (GB)
Title: Phthalimidines
IPC: C07D209/46
Filed: 1968-10-10
Abstract: 1,192,147. Phthalimidines; tetracarboxylic acids. TOYO RAYON CO. Ltd. 10 Oct., 1968 [13 Oct., 1967], No. 47990/68. Heading C2C. Novel phthalimidines of formula where Ar is a tetravalent radical containing at least two benzene rings, the linkages (1) and (2) being directly attached to adjacent carbons of one benzene ring and linkages (3) and (4) being directly attached to adjacent carbons of another benzene ring; R is H, alkyl or aryl; and R<SP>1</SP> is alkyl or aryl, are prepared by reacting carbon monoxide at 150-300 C. in the presence of a cobalt carbonyl catalyst with Schiffs' bases of formula Preferred phthalimidines are of formula where A is a direct linkage, C 1-3  alkylene, O, S, SO 2 , NH or CONH. The Schiffs bases corresponding to the products of Formula II are prepared conventionally in which: A=O, R=H, R<SP>1</SP>=CH 3 , C 2 H 5  or C 6 H 5 ; A = direct link, R = CH 3 , R<SP>1</SP>=CH 3 , C 2 H 5  or n-C 4 H 9 ; A = S, R = CH 3 , R<SP>1</SP>= C 2 H 5 . The phthalimidines may be converted to the corresponding tetracarboxylic acids by oxidation and hydrolysis, which may be effected in one step using HNO 3 . 3,3<SP>1</SP>4,4<SP>1</SP>-Diphenyl ether tetracarboxylic acid, 3,3<SP>1</SP>,4,4<SP>1</SP>-biphenyl tetracarboxylic acid 3,3<SP>1</SP>,4,4<SP>1</SP>-benzophenone tetracarboxylic acid, 3,3<SP>1</SP>,4,4<SP>1</SP>-diphenylsulphone tetracarboxylic acid are thus prepared, CH 2  or S groups represented by A being themselves oxidized to -CO- n  and HSO 2  respectively. N,N<SP>1</SP> - Dimethyl - 3,3<SP>1</SP>,4,4<SP>1</SP> - diphenylether tetracarboxylic diimide is obtained by oxidizing 6,6<SP>1</SP>-oxybis-(2-methylphthalimidine) with dichromate and is then hydrolysed with HCl to the tetracarboxylic acid.
Patent GB-1308788-A (GB)
Title: Amplifier circuit
IPC: H03F3/20
Filed: 1970-10-09
Abstract: 1308788 Transistor amplifier PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 9 Oct 1970 [13 Oct 1969] 48157/70 Heading H3T An amplifier circuit T 3 -T 5  comprises, an arrangement T 1 , T 2  for applying balanced signal currents to the base and emitter of T 5 , whose emitter circuit includes a diode T 4  shunting the emitter-base path of a second transistor T 3  and matched to it whose collector is connected to the base of T 5 , an unbalanced output being derived at collector terminal U. Transistors T 6 -T 8  of the opposite conductivity type serve as current source elements for T 3 -T 5 . The elements R, C shown may be replaced by the collector-emitter path of a further transistor having the base connected to a constant current source and a capacitor across the base and collector. As the currents drawn by T 3 , T 4  are identical the output at U is indicative of the difference in balanced signal currents applied to T 5 . The amplifier permits the application of a maximum common mode signal with the derivation of a large output signal.
Patent GB-1199987-A (GB)
Title: Apparatus for Drying Layers of Material
IPC: F26B15/12
Filed: 1967-10-24
Abstract: 1,199,987. Conveyer systems. PLAN-SELL OY. 24 Oct., 1967 [24 Oct., 1966], No. 48226/67. Heading B7L. [Also in Division F4] In apparatus for drying sheets of material such as veneers, the sheets are deposited successively on supports 3 in a drying chamber 1 through which air is circulated, each support including two spaced chains 4 whose links are pivotal in one direction only, a transverse support member 5 carried between the chains and a plurality of wheels 6; the supports are arranged such that the wheels of one support will rest on the wheels of an adjacent support to provide an air gap between material carried by the adjacent support and the one support, vertically disposed guides 8 are adapted to guide the wheel elements for vertical movement between upper and lower tracks 2, 19 along which they are moved by endless supply and discharge conveyers 25, 20, respectively, closable apertures are provided in the upper track 2 for the introduction of the supports into the guides, these apertures being closable by swinging trap doors 9 pivoted at 10, and rocking plates 15 having slots 16 to receive the axles of the wheels 6 are adapted to deposit the lowermost support on to the lower track 19 for removal of the supports from the chamber 1 by the conveyer 20. A common drive arrangement 11, 12 is provided for simultaneously operating all the trap doors 9, and a similar arrangement 18 is provided for simultaneously rocking the plates 15. As each support is being fed along the upper track 2, a sheet of material to be dried is deposited on it by a conveyer (27, Fig. 1, not shown). The dried sheets of material are removed from the supports as each support passes around a reversing roller (21, Figs. 1 and 5, not shown) after which the support passes along a return track 22 below the track 19 which is inclined upwardly towards the feeding end of the apparatus whereby after a further reversal it is returned to the upper track in readiness to receive a further sheet of material. Drying is accomplished by a stream of hot air produced by heating batteries 29 and circulating fans 30, ducting being provided, as shown, whereby the air passes between the stacked supports at a number of levels.
Patent GB-1492806-A (GB)
Title: Apparatus comprising a plurality of separate parts and control apparatus for producing timing pulses for said separate parts
IPC: G05B19/02
Filed: 1974-11-07
Abstract: 1492806 Selective signalling INDUSTRIELLE ELEKTRONIK AGIE LOSONE BEI LOCARNO AG 7 Nov 1974 [14 Nov 1973] 48299/74 Heading G4H Control apparatus for producing at a plurality of outputs A1 ... Ag respective series of timing pulses for controlling respective items of further apparatus, comprises plurality of independently operable pulse generators G1 ... Gg and a plurality of gating circuits 11 ... g1 which are connected to said generators and each of which is operable to produce a respective timing pulse only in response to, and substantially simultaneously with, the reception thereby of a predetermined plural number, dependent on a chosen degree of redundancy, of correctly timed pulses produced by respective ones of said generators, the gating circuits being connected to supply the timing pulses produced thereby to respective ones of said outputs and the apparatus including, for each said generator, timing control means 12 ... 14 connected to the associated generator for controlling the timing of the pulses produced thereby to maintain them in phase with said timing pulses. All the outputs shown of the generators G1 ... Gg are nominally equal. The gating circuits 11 ... g1 are majority gates. The timing control means 12 ... 14 are phase comparators which control the frequency of the respective generators G1... Gg to bring the generator output into phase with the gating circuit output. Further similar gating circuits may also be fed from the generators (so that the number of gating circuits exceeds the number of generators). Another phase comparator may be provided for each generator to control it in response to a comparison of the gating circuit output with an external sync signal common to the whole apparatus. The generators may have short-circuit-resistant amplifiers and limiters in their outputs to protect the generators. Isolators may be provided in the various lines, involving conversion from electric to light, hydraulic, pneumatic or acoustic signals and back again, or transformers with diodes in the primary or secondary windings. In one embodiment, the controlled items of further apparatus are static inverters (for D.C. to A.C. conversion) in a continuous current supply system, and the feedback to the two phase comparators associated with a given generator come from different ones of the gating circuits. The feedback to the second-mentioned phase comparator in each case can come from the static inverter controlled by the gating circuit rather than from the gating circuit itself. The generators have individual power supplies. The apparatus may alternatively be used to control a computer, rolling mill, or rotary printing installation.
Patent GB-1001551-A (GB)
Title: Combined retractable hold-down means and hanger support
IPC: E21B33/04
Filed: 1963-12-06
Abstract: 1,001,551. Wells &c. GRAY TOOL CO. Dec. 6, 1963 [Feb. 25, 1963], No. 48353/63. Heading E1F. In a wellhead 10 hold-down devices 32 respectively hold down pipe hangers 22, 38 and support hangers 38, 52. The devices are moved in apertures 58 in the wellhead into and out of engagement with the hangers by means of screws 68 having threads 70, 72 of opposite hand. The hanger 38 is sealed in the bore of the wellhead by a deflectable lip and a ring seal 44. Specification 757,336 is referred to.
Patent GB-1287124-A (GB)
Title: Self-levelling levelling instruments
IPC: G01C1/02
Filed: 1969-10-02
Abstract: 1287124 Levelling instrument KERN & CO AG 2 Oct 1969 [24 Oct 1968] 48549/69 Heading G2J A self-levelling levelling instrument in which the anallatic point 7 (defined) lies at least substantially over the axis of tilt of the instrument and remains substantially constant in position during focusing comprises a compensator 12 and at least two focusing elements 11, 13, movable in co-operation, and at least one of which 11 is in front of the compensator, in the path of light rays through the instrument. Light from an object 5 in a sighting plane 3 passes through an objective 110 and is imaged by the compensator and focusing elements on cross hairs 6 of a graticule 14, the image thus is at the same level as the anallatic point 7. On focusing at a different object position the focusing elements are adjusted so that they co-operate with the compensator to give an image on the cross hairs once again, the anallatic point remaining substantially in the same position. In Fig.3 (not shown) two focusing elements (11, 13) are rigidly combined into a co-axial double lens with a common focusing movement, the compensator being a reflector (12) (mirror or prism) and prisms (16, 17) being provided to direct the image to a graticule (14).
Patent GB-1278437-A (GB)
Title: Tape cutter
IPC: B26D1/02
Filed: 1969-10-06
Abstract: 1278437 Tape dispensers SEKISUI ADOHEYA KOGYO K K 6 Oct 1969 [10 Oct 1968 14 March 1969] 48971/69 Heading A4G [Also in Division B4] A tape cutter for cutting e.g. adhesive tapes, comprises a pair of blades arranged in V-formation so that a tape A can be drawn over a supporting edge portion 9 and then across the cutting edges 4 to sever the tape, the blades being bent along a circle having its center at the tapesupporting edge portion. In the embodiment shown in Figs.5 and 7 razor blades 40 are held between plates 41 and a V-shaped support 38 which is secured to a base 21. A holder 22 for a reel of tape is provided on the base and includes a pair of arcuate plates 28, 29, the plate 29 being formed with an edge 31 for retaining the reel under the action of spring 30. The tape is drawn from the reel and passed around a guide roller 23, then through a slot 26 in a plate 25; an annular projection 24 on the roller and the slot 26 causes the tape to be folded over with the adhesive surface facing outwardly. The free end of the tape is then pulled over the edge of the plate 25 and on to the blades in order to sever a portion. The base is formed with portions 42 through which a band may be attached, the band being fitted around the wrist of the user; a hard grip 43 is also provided.
Patent GB-1526236-A (GB)
Title: Spectrophotometer
IPC: G01J3/443
Filed: 1975-12-01
Abstract: 1526236 Spectrophotometers BAXTER TRAVENOL LABORATORIES Inc 1 Dec 1975 [5 Dec 1974] 49212/75 Heading G1A In a spectrophotometer, a variable monochromator is provided with means to generate a voltage which vanes linearly with wavelength as the monochromator scans through the spectrum and which is applied to circuit means to generate a connection signal to compensate the spectrophotometer output for non-linearities with wavelength introduced by variations in detector sensitivity, source emissivity and monochromator output, with wavelength. In the spectrofluorometer of Fig. 1, a sample is excited into fluorescence by a white light source 21 via excitation monochromator 22. As a further (scanning) monochromator 26 is scanned through a band of wavelengths to analyse the fluorescence spectrum, a baseline sweep voltage is generated by device 30 driven by the monochromator 26 drive. This is used as the X input for an oscilloscope or recorder and also applied to function generator 34 which derives a connection signal to compensate for non-linearities in the photo-multiplier wavelength response. Compensation is carried out by multiplying the spectrophotometer photo-multiplier output by this connection signal in multiplier 38, the connected signal being used as the Y input to the display means. In a further arrangement, Fig. 3 (not shown) in which the non-linearities caused by monochromator output variations with wavelength are compensated, two function generators, fine and coarse, are used to operate on the spectrometer detector output. This connected signal can be used direct of itself be multiplied by the linearly varying signal from the fluorescence emission scanning monochromator to derive a so-called "quantum connected" reading. In an arrangement, Fig. 4 (not shown) for correcting for wavelength-dependant non-linearity in the source output, the monochromator associated with the source is used to scan the spectrum and the drive therefor operates a sweep voltage generator whose output is applied to a function generator which operates on the signal from a reference photo-multiplier monitoring the scanning mono-chromator output. This connected reference signal is used to operate on the main photo-multiplier output of the spectrometer. Again, "quantum connection" may be applied by this time by use of a divider. Detailed circuits for the coarse and fine function generators are described, Figs. 5, 7 (not shown) and comprise circuit segments which are selectively activated at predetermined differentials between the stable reference voltage and the linearily varying wavelength representative voltage provided by the mono-chromator sweep generator.
Patent GB-1156736-A (GB)
Title: Improved Door Seal.
IPC: E06B7/20
Filed: 1967-10-30
Abstract: 1,156,736. Door seals. RAVEN BROS. PTY Ltd. 30 Oct., 1967 [31 Oct., 1966], No. 49221/67. Heading E1J. A hinged. flap door seal comprises an attachment strip 1, screwed to the door via slots 6 (as shown) or apertures, and having a curled upper edge 3 and an upper flange 4 co-operating with the door 5, in combination with a movable strip 10 carrying a flexible sealing strip 14, the curled upper edge 11 of the strip 10 co-operating, with the edge 3 to form a hinge, the movable strip 10 being, attached to the attachment strip 1 by a wire 16 acting as a torsion spring to urge the strip 10 into a position angled down and away from the door 5. A stop 17 (Fig. 3, not shown) on the door jamb co-operates with the strip 10 to operate the seal when the door is closed, and a sealing strip may be incorporated in the channel-sectioned portion 21 (Fig. 2, not shown) of the attachment strip 1, to cooperate with the door.
Patent GB-1326911-A (GB)
Title: Production of alkali metal or ammonium phosphate solutions
IPC: C01B25/46
Filed: 1970-10-16
Abstract: 1326911 Alkali metal and ammonium phosphates GIULINI GmbH Gebr 16 Oct 1970 [16 Oct 1969] 49273/70 Heading C1A An alkali metal or ammonium phosphate is produced by mixing impure aqueous H 3 PO 4  with a completely water-miscible organic solvent to produce a mainly organic phase containing H 3 PO 4  and a mainly aqueous phase, separating the two phases, reacting the organic H 3 PO 4  with an alkali metal or ammonium compound or ammonia, and separating the aqueous phosphate containing phase so produced. The initial H 3 PO 4  may be obtained by decomposing phosphate rock with H 2 SO 4  and may contain 20- 65% by wt. P 2 O 5 . The organic solvent may be aliphatic, aromatic, or cyclic mono- or polyhydric alcohol, ketone, ester, or cyclic ether, e.g. isopropanol or dioxan. The liquids may be mixed at 5-100‹ C. H 2 SO 4  may be added to the initial H 3 PO 4  or to the mainly aqueous phase to form sulphates of the inorganic impurities. The resulting aqueous phase is further treated with the solvent to extract H 3 PO 4  and the solvent is recycled. The alkali may be an oxide, hydroxide, carbonate, bicarbonate, or bacic phosphate, of Na, K or NH 4 , in aqueous solution or solid form, or gaseous NH 4 . Sufficient may be used to produce the mono-, di-, or tri-alkali form, and the product solution may be reacted with further alkali to form a different phosphate. The organic phase after separation of the aqueous phosphate may be treated with an alkali metal or ammonium compound, e.g. NaOH, to extract organic impurities into the aqueous phase, and the purified organic solvent recycled.
Patent GB-1484480-A (GB)
Title: Spectral sensitization of photographic light-sensitive emulsions
IPC: G03C1/08
Filed: 1974-11-15
Abstract: 1484480 Incorporating sensitizing dyes in photographic emulsions FUJI PHOTO FILM CO Ltd 15 Nov 1974 [15 Nov 1973] 49633/74 Heading G2C A photographic spectrally sensitizing dye having an amidinium ion auxochrome is dissolved in a water miscible organic solvent e.g. an alcohol or ketone, containing an amount of acid not exceeding 10% of the solvent weight; the acid having a pKa not greater than 5 and containing 0 to 10% of free water, other than water of crystallization; the resultant solution is added to a photographic light-sensitive emulsion. The acid an aliphatic or aromatic organic acid e.g. methane sulphonic acid, ethane sulphonic acid, 3- propanesulphonic acid, 1, 2-ethanedisulphonic acid, benzenesulphonic acid, p-benzenedisulphonic acid, p-toluenesulphonic acid naphthalene-α-sulphonic acid, (thio)barbituric acid, anhydro-2-methyl-5, 6- dichloro-1, 3-di (3-sulphopropyl)-benzimidazole hydroxide, anhydro-2-methyl-5-chloro-1, 3-di (3-sulphopropyl)-benzimidazole hydroxide; acidic surface active agents having a sulpho or sulphate group; and inorganic acids such as sulphuric, phosphoric and nitric acid.  The dyes incorporated are cyanines and hemicyanines e.g. styryl dyes.
Patent GB-1435616-A (GB)
Title: Hydro-pneumatic energy absorber units
IPC: B60R19/32
Filed: 1973-10-25
Abstract: 1435616 Shock absorbers GENERAL MOTORS CORP 25 Oct 1973 [24 Nov 1972] 49723/73 Heading F2S A telescopic hydropneumatic shock absorber comprises a cylinder tube 28; a piston tube 30; a metering pin 44 attached to the cylinder tube 28 for co-operation with an aperture 56 in the piston tube 30 to define a primary throttling orifice; a valve member 84 attached to the piston tube 30 which can flex in response to fluid pressure acting upon it, having an aperture 90 therein complementary to the metering pin 44 and forming a seal with it except when fluid is flowing from a primary chamber 62 to a secondary chamber 66; and a secondary throttling orifice 89 connecting the primary and secondary chamber 62, 66 respectively. The valve member may be flat, Fig. 6 (not shown) or have a central frusto-conical lip 92, 94, around its aperture 90.
Patent GB-1143130-A (GB)
Title: Solvent-resistant sealing compounds for joints
IPC: C09G1/14
Filed: 1966-11-08
Abstract: 1,143,130. Silicone sealing compounds. DOW CORNING CORP. 8 Nov., 1966 [18 Nov., 1965], No. 50052/66. Heading C3T. A composition for sealing joints between glass and glass, copper, steel or ceramic comprises (1) 100 parts by weight of a polymer consisting essentially of units of formula where R is a perfluoralkyl radical containing up to 12 carbon atoms, the polymer having a viscosity at 25‹ C. of 1000 to 100,000 cs. and being substantially free from silicon-bonded hydroxyl and hydrolysable groups and (2) 4 to 20 parts by weight of finely divided, hydrophilic silica having a surface area of at least 300 sq. m./gm. Up to 10% of the units of siloxane (a) may be replaced by dimethyl siloxane units. The preferred ingredient (a) is a polymer of end blocked with [(CH 3 ) 3 SiO¢,]units.