baber/WOPTO huggingface dataset:
Patent GB-878878-A (GB)
Title: Improvements in or relating to frequency detecting and correcting systems
IPC: H03L7/26
Filed: 1958-12-05
Abstract: 878,878. Automatic frequency control systems. STANDARD TELEPHONES & CABLES Ltd. Dec. 5, 1958 [Dec. 10, 1957], No. 39307/58. Class 40(5) A frequency standard for a frequency stabilized atomic clock comprises a gas cell containing an alkali metal vapour whose atoms are excited by a circularly polarized beam of light of resonance frequency incident on the cell parallel to a uniform static magnetic field traversing the cell and also excited by a microwave frequency with magnetic vector parallel to the static magnetic field and of frequency corresponding to a hyperfine magnetic dipole transition in the ground state energy levels of the atom. The microwave produced transistion may be F=2, mF=0 to F=1, <SP>m</SP>F=0. The light by "optical pumping" produces a population increase of atoms with hyperfine energy levels F=2,mF=2 where F is total angular moment of the atom and mF its quantum component in the direction of the static magnetic field. The microwave tends on the other hand to equalize the F = 2 and F = 1 population of atoms. The light absorption, due to variations in incident microwave frequency from a radiating horn 6 is detected by a photo-cell 6 and the microwave frequency derived by frequency multiplication at 15 of oscillations from a crystal oscillator 13. Further, the microwave frequency is phase and hence frequency modulated from a low frequency oscillator 9 so that the photo-cell output is amplitude modulated at this low frequency and has a phase sense depending on whether the mean microwave frequency is above or below resonance. The phase sense is detected in a phase comparator 8 with the original modulating low frequency and its output applied to a servo system 10 and potentiometer 11 controlling through a reactance tube 12 the crystal oscillator and hence microwave frequency. In a modification the gas cell is contained in a cylindrical TE o11  mode cavity resonator with holes for traverse of the light, and axial magnetic field parallel to the static field, and energized by the microwave energy. Alternatively, the microwave absorption in the cavity resonator may be detected by a loop coupled to it, and phase compared as before with the frequency modulating low frequency. In a further modification the low frequency variation of the polarization phase of the transmitted light is resolved by an analyser and its two outputs applied to a pair of photocells with their outputs applied to a differential amplifier and the phase sense of the low frequency output detected as before. The cell may also include a low pressure non-magnetic gas such as argon, neon or helium to reduce Doppler effect and increase the sharpness of the resonance line, and its pressure. To vary the resonance frequency and adjust the atomic clock, its pressure may be varied, or the static magnetic field may be varied. The vapour may be from sodium at a temperature 100-120‹C.
Patent GB-902911-A (GB)
Title: Improvements in or relating to devices for spreading granular or powdery material
IPC: A01C17/00
Filed: 1958-12-05
Abstract: 902,911. Powder distributers. VAN DER LELY N.V., C. Dec. 5, 1958 [Dec. 19, 1957], No. 39361/58. Class 6(1). A machine for spreading powdery material comprising a removable hopper 7 and a rotary ejector 8 is provided with a screening hood 17 which is maintained in position with the aid of the container. As shown the hood comprises a tubular framework covered with canvas, two pivoted outer sections being provided which can be raised for transport purposes. The hood is provided with two forked supports 29 which engage on a frame member 1 of the machine, and two rods 37 which embrace the container and are joined by a member 42 which engages the front of the container. The container is removed to attach the hood.
Patent GB-1204544-A (GB)
Title: Semiconductor device and method of manufacturing the same
IPC: H01L23/29
Filed: 1967-08-29
Abstract: 1,204,544. Oxide layers; Si; P; Al; B. HITACHI Ltd. 29 Aug., 1967 [2 Sept., 1966; 12 Sept., 1966; 24 March, 1967], No. 39520/67. Heading CIA. [Also in Division H1 A silicon oxide layer is formed on a Si substrate by heating the substrate in an oxidizing atmosphere at a temperature higher than 1000‹ C., alternatively tetraethoxy silane gas may be passed over the substrate whilst heating it to 740‹ C. Monosilane, propoxysilane, or methoxysilane may also be used. A layer of P 2 O 5  may then be formed by heating the coated substrate up to 800‹ C. and supplying POCl 3  and a carrier gas of oxygen to the substrate for about 1 hour. Other P compounds such as PCl 3 , PBr 3 , PCl 5 , PH 3 , or PBr 5  may be used. Then an Al coating is deposited on the substrate, e.g. by vacuum deposition, and the metal layer so produced is heated in an oxidizing atmosphere at about 620‹ C. for 5-60 mins. to give an Al oxide layer, if desired the temp. may be raised to 1000‹ C. If desired the Al oxide layer may be formed by heating the substrate to 300-500‹ C. and passing triethoxyaluminium in a carrier gas of N 2  and/or O 2  over the heated substrate. Al(C 2 H 5 ) 3 , Al(C 3 H 7 ) 3 , Al(CH 3 ) 3  or Al(C 6 H 5 .CH 2 ) 3  methoxy-aluminium and propoxy-aluminium may be substituted for the triethoxy aluminium. A layer of boron oxide may be deposited on the substrate by heating in an oxidizing atmosphere containing boron at about 600‹ C. or about 750‹ C. In further embodiments mixed oxide layers P 2 O 5  + B 2 O 3  may be obtained by heating the substrate at a temp. of 300-800‹ C. and simultaneously supplying B 2 H 6  gas, and PH 3  gas together with an oxygen carrier gas for 1 hour. By heating to 700‹ C. and using a mixture of POCl 3  and Al(OC 2 H 5 ) 3  in an oxygen carrier gas a mixed layer of P 2 O 5  and Al 2 O 3  may be formed. The multiple layers may be annealed to give vitreous products.
Patent GB-910744-A (GB)
Title: Means for securing railway rails to sleepers
Inventor: YOUNG GERARD
IPC: E01B9/30
Filed: 1957-12-19
Abstract: 910,744. Fastening railway rails. TEMPERED SPRING CO. Ltd. Dec. 4, 1958 [Dec. 19, 1957], No. 39525/57. Class 104 (2). In securing railway rails 10 to sleepers 13 by a pair of resilient plates 21 held in rail holding engagement with the rail 10 at opposite sides thereof, each plate 21 bearing at one end on the rail foot 11 and supported at its other end on a fulcrum 20 while a plate-constraining member 22 bears downwards and straddles the plate 21 intermediate the ends thereof, the fulcrum 20 and plate-constraining member 22 are formed by the exposed return bends of inverted U wire rods 29, Fig. 3, cemented in a concrete sleeper 13, one wire rod extending through the sleeper 13 under the rail 10 to provide the plateconstraining member 22 at opposite sides of the rail 10 or extending through the sleeper 13 remote from the rail 10 to provide the adjacent plate-constraining member 22 and fulcrum member 20 at one side of the rail 10, Fig. 1. In the arrangement shown in Fig. 1, a resilient plate member 21 is inserted over a fulcrum 23 and under a plate-constraining member 22 and is driven transversely to the rail 10 so that its end 25 bears on, or through the intermediary of an electrically insulating member 14, on the rail foot 11. The fulcrum 23 and the plateconstraining member 22 are formed by a round wire rod 17 bent to provide two upright spaced apart U-shaped loops 18, 19. The rod 17 is embedded or may be inserted in holes or passages in the sleeper 12 and then secured by electrically insulating cement. The end 25 of the plate 21 bears on the rail foot 11 or member 14 at two points 45, 46.
Patent GB-1300338-A (GB)
Title: Reagent for the determination of glucose
IPC: C12Q1/02
Filed: 1971-08-24
Abstract: 1300338 Glucose determination BOEHRINGER MANNHEIM GmbH 24 Aug 1971 [28 Aug 1970] 39579/71 Heading B1X A reagent for glucose determination, e.g. in blood, comprises glucose oxidase, peroxidase, a buffer, and, as stabilisers, an azide, e.g. sodium azide, and 2,2'-azino-di-(3-ethylbenzothiazoline-6-sulphonic acid), which latter compound also acts as a chromogen. An additional chromogen, e.g. o-dianisidine, may be included. The colour change of the chromogen is compared with standards for interpretation. The reagent may be in solution or in solid form.
Patent GB-1196485-A (GB)
Title: Improvements in or relating to apparatus Adapted for use in Dispensing a Multiple Component Mixture
IPC: B29C48/48
Filed: 1967-08-31
Abstract: 1,196,485. Injection moulding machines. BRITISH UNITED SHOE MACHINERY CO. Ltd. 31 Aug., 1967 [1 Sept., 1966], No. 39773/67. Heading B5A. [Also in Division B1] Apparatus for mixing the constituents of a mixture and then dispensing the mixture comprises a cylinder 80 containing a piston 78 and mixing blades 156. The constituents (e.g. hydroxyl and isocyanate groups, for forming polyurethane foam) are stored in pressurized tanks 42 and are admitted in sequence through pneumatically opened valves (246, 278, Fig. 4, not shown), to raise the piston. The blades 156 mounted on a shaft 148 are rotated after introduction of the first constituent, and are both rotated and reciprocated along the cylinder after introduction of the second constituent, before an outlet valve 184 is opened and the piston is lowered by a pneumatic ram 72 to inject the mixture into a mould 286. The valves controlling the inlet, outlet and operation of the ram 72 are operated by microswitches (V2A, V3, VIA, Fig. 7, not shown) actuated by a cross-bar 82 on the piston-rod 76. The quantities of constituents admitted are determined by the positions of microswitches (V2A, V3) slidable on guides 92. These positions may be adjusted individually or together to preserve a constant ratio of constituents, by connecting them to a lever 112 pivoted at one end (114) and movable over a scale (118) at the other end. In operation the apparatus is stopped with the cross-bar contacting the first microswitch (V2A), i.e. after admission of the first constituent, so that any mixture remaining in the cylinder is diluted and prevented from curing. The outlet nozzle block 176 is porous and is supplied with lubricant when the outlet valve 184 opens, and compressed air, to clean it, when the first inlet valve opens, through passages 180, 182. The mixing blade shaft 148 is similarly lubricated through a passage 162 and an opening 161 in the bearing 146. The mixing blade shaft bearing, and the cylinder 80 also have cooling passages 158, 138 respectively.
Patent GB-1098330-A (GB)
Title: Apparatus for storing partition panels
IPC: E04B2/82
Filed: 1966-09-06
Abstract: 1,098,330. Slidable door tracks. J. GENISON. Sept. 6, 1966, No. 39873/66. Heading B7L. [Also in Division E1] Panels 10 of a multi-sliding panel partition, each supported on runner rollers and provided with short guiding pegs 11 at its forward end (when moving for storage) and with longer pegs 13 at its rear end, which pegs are guided into respective storage parallel channel 15 formed by strips 18, 19 secured on a plate 16x, each storage channel 15 forming with the main channel 15a a junction at which a switch plate 16 is disposed to be pivotable to a first position in which the storage channel is open and to a second position in which the storage channel is closed, and has a portion 45 of smaller depth than the remainder of the switch plate which portion can be accommodated beneath the strip 18 so that when the switch plate 16 is in its first position and the portion 45 projects into the associated storage channel as shown at 31, Fig. 2, the front pegs 11 pass over it, but the longer rear pegs 13 contact it and pivot the switch to its second position 32, to close the storage channel. The first panel 10 enters the leftmost channel, then the second panel the next on the right (Fig. 2) and the third into the continuation 15a of the main channel and so on; the partition being reformed by movement of the panels from storage in the reverse order, the longer pegs tripping the switch plate to open the junction with the main channel 15. The switches are set in position by ball catches engaging appropriate recesses in the plate 16x and a pivot bearing for the switch is described (Fig. 8). The panels may be stored in the reverse order, the first being stored in channel 15a (Fig. 6).
Patent GB-1121760-A (GB)
Title: Amplitude-to-frequency converters
IPC: H03K7/06
Filed: 1966-09-06
Abstract: 1,121,760. Pulse frequency modulation. SIEMENS A.G. 6 Sept., 1966 [10 Sept., 1965], No. 39876/66. Addition to 1,053,513. Heading H4L. A voltage-controlled oscillator of the type in which the input voltage U e  is integrated by amplifier V and capacitor C i  until a threshold level is reached when a detector D provides an output pulse at A which is fed back to reset the capacitor C i , is characterized in that the output at A is converted in unit FSU to a voltage proportional to frequency which voltage is used to control the feedback to capacitor C i . In Fig. 1 there are two feedback units K o  and R 1 , K 0  providing a constant feedback charge and K 1  a feedback charge dependent on output frequency since its power supply is derived from the frequency discriminator FSU; the latter comprises an amplifier T 3  feeding a rectifier D 2  and integrator C 2  with R 2  and R 3 . A modified circuit, Fig. 2 (not shown), includes a single feedback unit K 3  fed from a constant power supply and including magnetically controlled resistors (RX and RY) situated in a magnetic field controlled by the output of the discriminator FSU. The response of the circuits is non-linear and may be such as to compensate for non-linearity of an input transducer, e.g. a thermocouple.
Patent GB-1065162-A (GB)
Title: Watch case
IPC: G04B39/02
Filed: 1964-09-30
Abstract: 1,065,162. Clocks and watches. GUNZINGER FRERESS.A. Sept. 30, 1964 [Sept. 30, 1963], No.39890/64. Heading G3T. A watertight watch case comprises a casing body 1 having an axially upstanding annular projection 5 which is screw-threadedly engaged internally by a bezel 10 which clamps the watch glass 2 against a sealing ring 8. The outer circumference of the projection 5 is engaged by a snap-on false bezel 9. In modifications the sealing ring is housed in a recess in the glass or partly in the glass and partly in the body 1. A retaining ring (8b) may be fitted, Figs. 2 and 3 (not shown).
Patent GB-1032888-A (GB)
Title: Deflocculation of solid materials in aqueous medium
Inventor: IRANI RIYAD
IPC: C09K23/00
Filed: 1963-10-10
Abstract: <FORM:1032888/C1/1> <FORM:1032888/C1/2> Deflocculating agents for aqueous dispersions of clay, kaolin, coal, cement, water base paint pigments comprise amino methylphosphonic acids (see Division C2) or their water-soluble salts, e.g. alkali metal, alkaline earth metal, ammonium or amine salt.  Compounds of Formula VI are especially preferred where X and Y represent H or C1- 4 alkyl.  For coal slurries, compounds of Formula VII are preferred where R represents aliphatic C6- 30 hydrocarbons, possibly halo or hydroxy substituted, and X and Y are H or lower alkyl.  Amino tri - (methyl - phosphonic acid) N(CH2PO3H2)3 is used in a kaolin slurry, and the tetra sodium salt of tetradecyl amino di(methyl phosphonic acid) C14H29N(CH2PO (ONa)2)2 is used in a coal slurry.  Further examples of deflocculating agents are: N(CH2PO3H2)3; N[C(CH3)(CH3) PO3H2]3; CH3N(CH2PO3H2)2; nC4H9N (CH2PO3H2)2; (H2O3PCH2)2NCH2CH2N (CH2PO3H2)2; (H2O3PCH2)2NCH2CH2N (CH2PO3H2)CH2CH2N (CH2PO3H2)2; (H2O3PCH2)2NCH2CH2 [N(CH2PO3H2) (CH2CH2)]2 N(CH2PO3H2)2 nC18H35N (CH2PO3H2)2; OHCH2CH2N(CH2PO3H2)2; and ClCH2CH2CH2N(CH2PO3H2)2.ALSO:Amino methylphosphonic acids having the formula given below and their salts are prepared by reacting a primary amine or ammonia, a compound containing a carbonyl group such as an aldehyde or ketone, and a dialkylphosphite and hydrolysing the ester obtained to form the acid or the salt.  The acids have the general Formula I <FORM:1032888/C2/1> where n represents 0 or 1, X and Y are the same or different and represent H or alkyl and R represents -H, an aliphatic hydrocarbon radical, a halo- or hydroxy-substituted aliphatic hydrocarbon radical, or a grouping of the Formula II <FORM:1032888/C2/2> where m represents an integer from 1-30, Z represents -H or <FORM:1032888/C2/3> and Z1 represents the grouping: <FORM:1032888/C2/4> or <FORM:1032888/C2/5> where p represents an integer from 1-30.  The preparation of hexaethyl aminotri(methylphosphonate), aminotri(methylphosphonic acid), i.e. N(CH2P-(O)(OH)2)3, penta sodium aminotri(methylphosphonate), i.e. N-(CH2P(O)3Na2)2 -(CH2P(O)3HNa), tetradecylaminodi(methylphosphonic acid), i.e. C14H29N(CH2P(O)(OH)2)2 are described.  Further examples of compounds which may be prepared are N[C(CH3)(CH3)PO3H2]3; CH3N(CH2PO3H2)2; nC4H9N(CH2PO3H2)2; <FORM:1032888/C2/6> nC18H35N(CH2PO3H2)2; OHCH2CH2N(CH2PO3H2)2; ClCH2CH2CH2N(CH2PO3H2)2.
Patent GB-967698-A (GB)
Title: Improvements in or relating to spittoon installations
Filed: 1962-10-24
Abstract: 967,698. Dental spittoons. H. PETIT. Oct. 24, 1962 [Oct. 26, 1961], No. 40194/62. Heading A4N. In a dental spittoon, a receptacle 1 is connected by a flexible tube 3 to a waste pipe 4 and is removably supported on an arm 2. When the receptacle 1 is lifted from the arm 2, the arm is pivoted under the action of tension spring 6 to allow valve 7 to open so that water flows through perforated pipe 9 to wash the inside of disposal insert 1a. The use of a hollow walled receptacle, having perforations in the inner wall for the washing water, is referred to.
Patent GB-1247303-A (GB)
Title: Improvements in or relating to electroplating
Inventor: CHESSIN HYMAN
IPC: C25D21/11
Filed: 1969-08-12
Abstract: 1,247,303. Suppression of fumes from electro-plating baths. M & T CHEMICALS Inc. Aug. 12, 1969 [Sept. 25, 1968], No. 40328/69. Heading C7B. The production of fumes and mist from an aqueous electro-plating bath, e.g. for deposition of chromium, tin or zinc, is suppressed by including in the bath a blended dispersion of hydrophobic particles having an average particle size of 0À002-100 microns. The hydrophobic particles may be of polymer or copolymer of styrene, butadiene, acrylonitrile, vinyl acetate or vinyl chloride; a polyfluorinated hydrocarbon; polypropylene; diatomaceous earth; silicates, e.g. sodium silicate; insoluble carbonate or carbide; or silica coated with polysiloxane or hydrolyzed dimethyldichloro-silane. The chromium plating bath may contain chromic acid, sulphate, fluosilicate and/or fluoride, and may contain strontium and potassium ions.
Patent GB-1528375-A (GB)
Title: Process for isolating and purifying hydroquinone
IPC: C07C37/08
Filed: 1975-10-02
Abstract: 1528375 Production of hydroquinone solutions VEBA-CHEMIE AG 2 Oct 1975 [2 Oct 1974] 40426/75 Heading C2C The invention relates to a process for the production of aqueous solutions of hydroquinone which are substantially free from phenolic and non-phenolic impurities which comprises extracting with water at a temperature from 50‹ C. to the boiling point of the resultant azeotrope a solution of the hydroquinone and of the phenolic and non-phenolic impurities in a ketonic solvent having 5 to 9 carbon atoms, the solvent being immiscible or substantially immiscible with water, whereby the hydroquinone dissolves in the aqueous phase and the phenolic and non-phenolic impurities remain in the ketonic phase.
Patent GB-1495798-A (GB)
Title: Building deck construction
IPC: E04B7/00
Filed: 1975-10-03
Abstract: 1495798 Floor or roof construction DECKS INC 3 Oct 1975 [18 Oct 1974] 40455/75 Heading E1W A floor or roof construction comprises purlins 30 supporting further purlins 20, of sheet metal, and of generally box-section, with a flat base and sides, and one (continuous) or more slots in the upper face, to which boards 12 are fixed by clips 40, the boards being surmounted by a concrete layer 15 reinforced by mesh 14. Upper layers 16 and 17 of e.g. roofing felt and asphalt, surmounted by tar and gravel may be provided in a roof construction, or the concrete layer may be waterproofed with a plastics membrane. The concrete may include gypsum. The clips 40 are of sheet metal and have slotted sides which engage with the edges of the, or each slot in the further purlins. A layer 18 of foamed material e.g. polystyrene is fixed, e.g. glued over the boards 12, which may be of gypsum plasterboard.
Patent GB-1444839-A (GB)
Title: Method for producing a feeding stuff suitable for ruminants
IPC: A23K50/15
Filed: 1974-09-17
Abstract: 1444839 Feedstuff for ruminants DANSK LANDBRUGSGROVVARESELSKAB AmbA 17 Sept 1974 [21 Sept 1973] 40523/74 Heading A2B  A feedstuff for ruminants comprises 15-30% by weight of the total mix of a liquid mixture formed by mixing 1 part by weight of urea, 0.2 to 1.5 parts by weight of acetic acid, 3 to 0.25 parts by weight of molasses and water in an amount of from 0 to 50 per cent by weight of the liquid mixture, and 85-70% by weight of the total mix of a finely divided or ground starchy material. The feed may be rolled, tabletted or pelletted if desired.
Patent GB-1236405-A (GB)
Title: Improvements in or relating to fluid logic switching systems
IPC: G05B19/44
Filed: 1968-08-27
Abstract: 1,236,405. Fluid logic and switching circuits. BERGWERKSVERBAND G.m.b.H. Aug. 27, 1968. [Oct.18, 1967], No.40851/68. Heading F1P. A fluid logic switching system suitable for controlling operating procedures which are independent of each other e.g., advancing mine roof support frames and which operations are gated and can each be interrupted by erasure of one of the initiating i.e., input signals that set off its working cycle or by an indication in reply upon the termination of the operating procedure comprises a plurality of groups of identical gate elements Vk 1  - - Vk 4  Fig. 5 which are switched inter-se and each gate element comprises an erasure-dominating storage device LL Fig. 3 having a front of the erasure input an OR element N 1 , N 3 , N 3  and having two outputs, X, X each positioned at the inputs of two AND elements thereby constituting four conditional outlets Y, Z, Y, Z, and the two outputs X, X each constitute an unconditional outlet of the gate element. The erasure-dominating storage device comprises two NOR elements having an information input I Fig. 1, an erasure input N and one or two outputs X, #X of opposite sign. A brief signal at I produces a signal at #X which is fed back to a parallel input of I on the upper NOR element and there replaces the information signal and is stored until an erasure signal appears at N and the output signal is erased. Fig. 5 shows one of a plurality of groups of gating elements and each group comprises four series connected elements such that the output X of one element transmits a signal (1) to the input I of the succeeding element or to the objects to be controlled (2) to the erasure input N 1  of the preceding element or to the input storage device Ek and (3) to provide a cut-off signal to the gate element of an adjacent group (not shown). Erasure inputs N 2  receive signals from the preceding group of gate elements (not shown)