baber/WOPTO huggingface dataset:
Patent GB-1445119-A (GB)
Title: Direct electronic fourier transform of optical images
IPC: G06V10/20
Filed: 1973-09-26
Abstract: 1445119 Television RESEARCH CORP 26 Sept 1973 [29 Dec 1973] 45011/72 Heading H4F A device for converting an optical image into electrical signals which are spatial Fourier transform representations of the optical image uses a medium having an electrical property which varies as a function of an incident optical image and strain disturbances, the electrical property being measured as a plurality of varying strain disturbances are sequentially caused in the medium to provide a like plurality of electrical signals, each representing one term in the Fourier transform. In one embodiment, Fig. 5, for a one-dimensional image projected by a projector 18 the medium is formed by a film 12 on a substrate 10, surface acoustical waves being generated by a transducer 20 fed by a sweep frequency generator 24. A constant voltage from source 28 is applied between electrical contacts, 14, 16, changes in the conductivity of the film 12 being detected by a detector 34 which also receives a frequency-related input from generator 24. Several of the devices of Fig. 5 may be connected in parallel (Fig. 6, not shown) for two-dimensional images, using interdigitated tooth-like contacts. In an alternative embodiment voltage changes across a semi-conductor or metal bar (36, Fig. 7, not shown) receiving a onedimensional image and being subjected to bulk wave vibrations are detected. In a further embodiment, Fig. 8, for twodimensional images an image is projected by a projector 70 through a substrate 56 vibrated by transducers 72 to a photo-cathode film 58, emitted electrons being collected at 60, the voltage across a resistor 64 being measured to derive the output signals. In an alternative embodiment the image is projected on a selected area of a substrate (56, Fig. 9, not shown) vibrated by two transducers. The vibrating medium in each of the above devices may vibrate at a fundamental frequency and simultaneously at one or more harmonics, the signals relating to these different frequency being separated by electronic filters (106a- 106c, Fig. 11, not shown). For deriving signals from a colour image three devices (114a-114c, Fig. 12, not shown) may be used, each receiving a different primary colour image component.  To reproduce an image from the derived signals the signals are fed to transducers (92, 94, Fig. 10, not shown) coupled to an elasto-optical plate (88) positioned between crossed polarizers, light being shone on one end of this assembly, the plate causing local changes in the angle of polarization of light passing through it. The light transmitted by the assembly can be stored, as a signal, in an acoustic delay line which adds up the Fourier components; an electronic shutter or flash tube can then illuminate the sound wave complex to derive a total optical image.
Patent GB-1064496-A (GB)
Title: Derivatives of yohimbane
Inventor: BONATI ATTILIO
IPC: C07D459/00
Filed: 1963-11-14
Abstract: The invention comprises 1-R-substituted methyl 18-epireserpate methyl ethers where R is a saturated or unsaturated aliphatic hydrocarbon radical which may be substituted by an amino, dialkylamino, heterocyclic amino, alkoxy or aryl radical, and the preparation thereof by reacting methyl 18-epireserpate methyl ether with Rx where x is a halogen, or by reacting methyl reserpate p-bromobenzenesulphonate with Rx to introduce R at the 1-position, followed by methanolysis of the product in a slightly alkaline medium to produce the methyl 1-R-18-epireserpate methyl ether.  The reaction with Rx is suitably carried out in the presence of a condensing agent which can form a metal salt at the 1-position, and in an inert solvent.
Patent GB-1504227-A (GB)
Title: Digoxin derivatives
IPC: A61K31/704
Filed: 1976-11-04
Abstract: 1504227 12-Epi - digoxin and derivatives thereof BOEHRINGER MANNHEIM GmbH 4 Nov 1976 [10 Nov 1975] 45919/76 Heading C2W The invention comprises compounds of formula (wherein R 1  and R 2  are each H, acyl or C 1-4  alkyl ; R 3  is H or acyl, and R 4  is H or aliphatic hydrocarbyl of up to 4 carbon atoms); and their preparation from the corresponding 12-ketones by reduction (e.g. with LiAlH(OBu<SP>t</SP>) 3 ), optionally followed by esterification or etherification of hydroxyl groups as appropriate or introduction of a hydrocarbyl group at C-22. Cardiotonic compositions for oral and parenteral administration comprise a compound I and a carrier.
Patent GB-1315218-A (GB)
Title: Automatic changing of change-speed gearing
IPC: F16H47/08
Filed: 1970-09-29
Abstract: 1315218 Variable speed gears DAIMLER-BENZ AG 29 Sept 1970 [29 Sept 1969] 46256/70 Heading F2D A variable speed transmission including a hydrodynamic unit W (e.g. with a bridging clutch K³) and for discrete ratios, hydraulically operated non-positive elements (e.g. brakes B1, B2 and a clutch K3 in a Simpson gear train), when changing ratio has the operating chamber of the element of the new ratio filled before that of the old ratio is emptied and the unit W allowed to slip (or to increase slip) for a ratio change (e.g. by emptying the clutch K³). Ratio change is initiated by manual or automatic movement of one of the valves KS12 or KS23. For changing from first ratio to second, valve KS 12 is moved to the left allowing fluid throttled at d3 to pass 66, 69 to the brake B2, which on filling pressurized a chamber 18 to move a shift valve SB1 to the left connecting the brake B1 to a drain 03. During a ratio change, fluid flow through the line 65 causes a reduction of pressure therein due to restrictors d 1  and d 2  causing the shift valve SK³ to move to the right, reducing pressure in the clutch K³, and causing a valve RA to move to the right. This disconnects the supply line 63 from the line 65 and connects the latter via the restrictor d2 to an accumulator AK. Movement from second to third ratio is similar and is initiated by moving the valve KS23 to the right.
Patent GB-973838-A (GB)
Title: Process for the production of 1,3,5-trimethylenetrisulphone derivatives containing one to three hydroxyl groups
IPC: C08K5/45
Filed: 1962-12-10
Abstract: Hydroxy aliphatic or substituted aliphatic derivatives of 1, 3, 5-trimethylene trisulphone, which may itself be substituted, are prepared by heating the 1, 3, 5-trimethylene trisulphone or substituted derivatives thereof with a substituted or unsubstituted halo-aliphatic alcohol in an aqueous alkaline medium, the aliphatic alcohol and the alkali being present in stoichiometric amounts, to introduce at least one hydroxy aliphatic group into the sulphone nucleus. Specified halo, alkanols are: ethylene chlorohydrin 1-phenyl-2-chloroethanol 1 and 3-chloropropanol and as haloalkenol, 4-chlorobutenol is mentioned.  The sulphone reactant may bear one or two saturated or unsaturated hydrocarbon radicals, such as allyl, diallyl, or benzyl. The reaction may be effected in aqueous sodium hydroxide, potassium hydroxide, or an aqueous solution of a quaternary amine, e.g.: tetramethyl ammonium hydroxide. Inert water soluble organic solvents may also be present; e.g.: methanol, ethanol, dioxane, or a glycol. Examples describe the preparation of: (1) monohydroxyethyl trimethylene trisulphone; (2) bis-hydroxyethyltrimethylene trisulphone. (3) trishydroxyethyl trimethylene trisulphone. (4) bis-hydroxyethyl benzyl trimethylene trisulphone. Reference is made to the production of a mixture of mono- and bis-hydroxyethyl derivatives.  The compounds may be used as initial material for the production of softeners, antistatics, and pharmaceuticals, and components for production of sulphur containing polyesters and alkyd resins.
Patent GB-1182090-A (GB)
Title: Thermal Printing System
IPC: G06K15/02
Filed: 1968-10-01
Abstract: 1,182,090. Printer control circuits. NATIONAL CASH REGISTER CO. 1 Oct., 1968 [15 Nov., 1967], No. 46582/68. Heading G4H. In a printer comprising a row of thermal printing heads 46, signals representing corresponding points in the matrices from which a line of N characters is to be built up, are applied to an N stage shift register 32, a divide by N counter 34 gates at 44 each set of N signals from register 32 to N corresponding S.C.R. current gating elements associated with the print heads 46, and a divide by 5 counter 56 is stepped on for every N signals received so as to successively energize 5 current gating transistors via gates 50, each current gating S.C.R. being connected through 5 diodes and print heads to the 5 current gating transistors so that the first print head in each character position receives its corresponding signal in turn, followed by the second print head and so on until all five print heads in each of the N positions has been selectively energized to print the first row of the character matrices. Counter 56 then causes advance of the thermal responsive recording medium 90 via circuit 82-86 and the process is repeated for the next 5N signals representing the second matrix row of the line of characters and so on. The signals may be received over a radio channel 10, clock pulses being derived at 12 for advancing register 32 and counter 34 in the presence of a data input, detected by gates 24, 30. If data is absent for period determined by circuit 26, 28, 104, counters 34 and 56 are reset.
Patent GB-1036718-A (GB)
Title: Improvements in and relating to dispensing packs
Inventor: DEVERY KEERRAN VIVIAN
IPC: B65D83/00
Filed: 1961-12-29
Abstract: 1,036,718. Dispensing devices. AUSTIN PACKAGING Ltd. Dec. 24, 1962 [Dec. 29, 1961], No. 46612/61. Heading B8P. A dispensing device of cardboard comprises a rectangular compartment 14 for receiving articles having an aperture 26 therein, and a pull-out tab 12 forming an article-receiving tray into which articles fall via said aperture. The pull-out tab is connected to the compartment by tongues 52 fitting into slits in the folds between the back panel 14 and side panels 16, or by adhesive, or else is formed integral with an inner tray carried within the compartment and which may be divided into two sections by a longitudinal rib 138 (Fig. 8). The front of the compartment may be partially open with the side panels 16 carrying flanges 22 with slits 24 therein into which end closure flaps are folded, there being similar closure flaps 20 at the other end of the compartment. Alternatively the front panel 102 is cut out at 106 for viewing the articles therein, one end is closed by panels 110, and the aperture 126 is closable by flaps 128. A hole, by which the device may be suspended, may be provided in the top end closure. The rigidity of the container may be improved by providing a short sleeve or a film over-wrap for encircling the main body, the wrappings falling short of the pull-out tab.
Patent GB-1475196-A (GB)
Title: Switch
IPC: B60Q1/14
Filed: 1975-09-10
Abstract: 1475196 Mechanical switches BONNELLA SWITCHES Ltd 10 Sept 1975 [29 Oct 1974] 46701/74 Heading H1N A switch wherein the operating member is pivotable about each of two mutually transverse axes to perform respective switching functions has a first mounting 20, 21 of the ball- and-socket type and a second mounting 22, 23 of pin-and-slot type, the mountings permitting pivotal movement of the operating member about a first axis 24 which passes through the two mountings and tilting movement about a second axis on relative movement of the pin 22 and slot 23. As shown, the member 12 has an integral part-spherical portion 20 received in a socket constituted by an opening 21 in a metal plate 15 forming the cover of a synthetic resin body 14 which has a slot 23 receiving a pin 22, also integral with member 12. Thus member 12 may be actuated by an arm 13, to pivot about axis 24 causing spring-loaded contact 26 to bridge selected fixed contacts 30, and it may be tilted with sliding of pin 22 along slot 23 to cause portion 38 of contact member 32 to abut a conductive strip 41. The portion 37 extends below portion 38 and is held in continuous engagement with a conductive strip 40 by spring 35. The strips 40 and 41 extend sufficiently in the direction perpendicular to the plane of the drawing for contact 32 to be effective in any position of member 12 about axis 24. The tilting action of member 12 to actuate contact 32 is retractive due to spring 28 of contact 26, which normally urges member 12 to the position shown.
Patent GB-1443869-A (GB)
Title: Method of producing waterproof leather
IPC: C08J7/12
Filed: 1974-11-01
Abstract: 1443869 Waterproofing leather HENKEL & CIE GmbH 1 Nov 1974 [3 Nov 1973] 47305/74 Heading D1P Leather is rendered water impermeable by treating with an aqueous fat-liquor containing an acidic citric acid ester of a C 12 -C 22  fatty alcohol and a water miscible organic solvent having a boiling point higher than 100‹C, emulsified in water. The preferred ester is citric acid mono oleyl ester or citric acid monoisooctadecyl ester. The preferred solvents are C 2 -C 6 . alkane diols or monoalkyl ethers thereof. The fat-liquor may further contain ammonia in a quantity insufficient to neutralise the acidic ester completely.
Patent GB-1324225-A (GB)
Title: Regenerator-type heat exchangers
IPC: F28D19/04
Filed: 1971-10-13
Abstract: 1324225 Thermal regenerators FORD MOTOR CO Ltd 13 Oct 1971 [31 Dec 1970] 47592/71 Heading F4K A rotary disc type axial flow, rimless, ceramic regenerator matrix 10 is rotated by a drive arrangement consisting of a ring gear 26 coupled to the matrix 10 by a plurality of flexible spring clips 28 frictionally engaging recessed or sealloped portions 30 provided in each of a plurality of ceramic plugs 32 buried within the outer surface of the matrix. The spring clips 28 are U-shaped in cross-section and each have a body portion 40 the free end of which has an upturned flange 42. The other leg 44 of the spring clip is tapered and terminates in a sharp spur or apex 46, and the inner surface 50 of the ring gear 26 is provided with an annular groove (52, Fig. 3, not shown) which may be complementary in shape to the apex 46 of the clip 28. The sharp spur or apex 46, which is of a hard material, will indent or deform the material of the ring gear 26 during assembly and operation. The matrix 10 consists of a plurality of radially attenuating flat and corrugated ceramic strips 12 and 14.
Patent GB-1199024-A (GB)
Title: Improvements in process for Vanadiding Metals
IPC: E05F11/38
Filed: 1967-10-19
Abstract: 1,199,024. Electrolytically vanadiding metals. GENERAL ELECTRIC CO. Oct. 19, 1967 [Nov. 10, 1966], No. 47594/67. Heading C7B. A method of forming a vanadide coating on a base metal composition, the composition having a melting point greater than 800‹ C., at least 50 mole per cent of said base metal composition being at least one of the metals selected from the class consisting of metals whose atomic numbers are 24 to 29, 41 to 47 and 73 to 79, which method comprises (1) forming an electric cell containing said metal composition as the cathode, joined through an external electrical circuit to vanadium serving as anode and a fused salt electrolyte consisting of (a) one or more of the alkali metal fluorides, or a mixture of one or more of the alkali metal fluorides with one or more of the fluorides of strontium, calcium and barium and (b) from 0À01 - 5 mole per cent of vanadium fluoride, said electrolyte being maintained at a temperature of at least 800‹ C. but below the melting point of said metal composition in the substantial absence of oxygen, and (2) controlling the current flow in said electric cell so that the current density of the cathode is in the range of from 0À01 to 10 amperes/dm<SP>2</SP> during the formation of the vanadide coating. The term "vanadide" designates any solid solution or alloy or intermetallic compound of V and the base metal. The cell generates electric current. The deposition rate of the V may be decreased by inserting some resistance in the circuit or may be increased by impressing a voltage, e.g. to obtain constant current densities during the reaction. Specified fluorides that may be used are those of Li, Na, K, Rb and Cs, e.g. a eutectic mixture of NaF and LiF. The process may be carried out under vacuum or an inert atmosphere, e.g. of Ar, He, Ne, Kr or Xe. The electrolyte may be purified, e.g. from carbon, by an initial electrolysis. A vanadium anode may comprise a rod or strip or be in the form of chips in a porous Fe or (Registered Trade Mark) "Monel" basket. The vanandide has a hard, wear-resistant surface.
Patent GB-1112916-A (GB)
Title: Multi-unit frame construction for window or other openings in buildings
IPC: E06B1/56
Filed: 1965-11-10
Abstract: 1,112,916. Window unit assemblies. F. ASPAAS. 10 Nov., 1965 [11 Nov., 1964; 17 Nov., 1964; 18 Nov., 1964], No. 47678/65. Heading E1J. In a multi-unit frame assembly in which the unit frames alternate with posts, the upper and lower parts of the unit frames and the upper and lower parts of the posts have mutual channel and insert connections with the upper and lower horizontal parts of the walls surrounding the window opening with the insert parts of the connections being engageable to a greater depth in the upper channels than the lower channels whereby the frames can be lifted with respect to the upper part of the wall and then dropped into position in the lower part of the wall, the sides of the unit frames and posts also having insert and channel connections so that the units or posts may be moved laterally into mutual engagement with each other. The posts may be of H section formed by opposing metal parts 11<SP>1</SP> connected together by a heat insulating element 11<SP>11</SP> and with a list in the form of elastomeric or tubular list 14 in one channel to allow the unit frame 1 to be moved transversely to the right for removing the unit from the post. The other list 13 may be of wood and the channel fitting over a wooden jamb 15 at the end of the assembly. Sealing glazing strips 12 surround the unit frame 1. In Fig. 6 the channel is in the unit frame 20 and the insert 24 on the post, and an elastomeric C-sectioned strip 27 is inserted into the joint between two adjacent frames to cover the post 25. The upper and lower channels may be formed in profiled sheet metal sill and head members.
Patent GB-1124076-A (GB)
Title: Improvements in and method of producing heat exchangers
Inventor: BURNE FREDERICK ARLINGTON
IPC: B21D53/06
Filed: 1965-11-11
Abstract: 1,124,076. Making heat exchangers. OLIN MATHIESON CHEMICAL CORP. .11 Nov., 1965, No. 47939/65. Heading B3A. [Also in Division F4] In a method of making a heat exchanger in which a fluid-pervious, heat-transfer mass 20 is positioned in a space between two tubes 15, 16 arranged one within the other, and is metallically bonded to the tubes, and wherein distributing and collecting channels for one of the heat exchange fluids extend through the mass, each channel is formed by inserting an appropriately shaped core 30 or 31 between the tubes, filling the remaining space with a particulate material intended to form the porous mass, bonding the particles together and to the tube walls, and finally removing the cores. Either the same or differing materials may be used for the tubes and the porous mass, steel, copper, brass, aluminium or alloys thereof being mentioned.  Alternative ways described for forming the mass are: (a) Metal particles (preferably spherical) are poured into the space between the tubes, and any appropriate brazing or soldering teohnique is then used to form the bond. (b) Metal particles mixed with a combustible or soluble substance are poured into the space between the tubes, the substance then being removed by appropriate means. (c) A molten metal or alloy is poured into the interstices of a loose aggregate of soluble material which has been positioned between the tubes and whose melting point exceeds that of the metal or alloy. When the metal or alloy has solidified, the soluble material is removed by any suitable dissolving means. The porous mass may alternatively comprise layers of woven or knitted wire. The core 30 or 31 may be made of carbon or ceramic, or of metal coated with any stop-off material such as aluminium oxide.
Patent GB-1532639-A (GB)
Title: Electrohydraulic control means for the height adjustment of a cutting mechanism of an agricultural machine
IPC: A01D41/14
Filed: 1975-11-24
Abstract: 1532639 Height adjustment of cutting mechanisms MASCHINENFABRIK FAHR AG 24 Nov 1975 [25 Nov 1974] 48253/75 Addition to 1455010 Heading A1F A working implement 28 of an agricultural machine is pivotally supported by a hydraulic cylinder 11 fed by a pump P via a multi-way valve 14 which is actuable electrically through a multiple switch 22; an electromagnetically actuable shut-off valve 20 and a pressure limiting or throttling valve 21 are connected in parallel between the multiway valve and the cylinder 11. The switch 22 has four positions corresponding to four pairs of contacts; in the RH and RS positions the switch is self-holding in position and the cylinder is operated to respectively raise and lower the cutting implement 28 until the circuits are interrupted by respective limit switches GO, GU and the valve 14 returns to its neutral O position shown; in the RH and RS positions flow is directed through the valve 20 so that operation takes place at a relatively fast speed. In the TH position the implement is raised at the relatively fast speed for so long as the switch position is maintained by the operator. In the TS position the implement is lowered at the relatively fast speed until the lower limit switch GU is switched and relay E is energised to complete the circuit whereby valve 20 is moved to its no-flow position and the pressure limiting or throttling valve 21 becomes operational. Further lowering at relatively slow speed then takes place as long as the TS switch position is maintained by the operator.
Patent GB-1406107-A (GB)
Title: Method of developing colour and its use in pressure-sensitive  record material
IPC: B41M5/165
Filed: 1972-10-19
Abstract: 1406107 Pressure sensitive record sheets MONSANTO CO 19 Oct 1972 [20 Oct 1971] 48255/72 Heading D2B [Also in Division C4] Solvents comprising a compound of the formula wherein each Ar is a C 6-18  aromatic nucleus optionally substituted by chlorine, bromine, or cveloalkyl, or a C 6-18  hydroaromatic nucleus, n is 0 or 1, each R<SP>1</SP> is a linear or branched C 1-12  alkylene or alkenylene group or an arrylsubstituted C 1-12  alkylene or alkenylene group, R" and R are each a H atom or C 1-6  alkyl radical, or, when n is 0 and R" is ortho to R' on the Ar nucleus, then R" can be a linear or branched alkylene group of 2 to 6 C atoms linked to a C atom of R', are used as solvents for colour-forming dyes in pressure-sensitive mark-recording systems in which such dyes are reacted with colour-developing agents to form marks. The solvents may comprise mixtures of the above compounds with each other or with one or more other solvents or diluents such as mineral or vegetable oils or an organic solvent such as aromatic naphtha or alkyl benzene. Conventional colour-forming dyes and colourdevelopers for use therewith are specified. The pressure-sensitive mark-recording system may be a conventional one or two-sheet system. The solvent may be encapsulated.
Patent GB-1588887-A (GB)
Title: Process for the treatment of vinyl chloride polymers
IPC: B29B7/74
Filed: 1977-11-21
Abstract: For the preparation of ready-to-process pulverulent mixtures based on vinyl chloride polymers having a substantially reduced content of monomeric vinyl chloride, relative to the vinyl chloride polymer employed, a high-speed mixer (1), for example, fitted with a high-speed stirrer (13), a conditioning mixer (2) fitted with a stirrer (14), and a cooling mixer (3) fitted with a stirrer (15) are arranged in the form of a cascade. The pulverulent vinyl chloride polymer and processing auxiliaries are mixed in the mixers while being heated in the high-speed mixer (1) to a final temperature of from 70 to 160 DEG C. The pulverulent mixture is first mixed further at this temperature in the conditioning mixer (2) and only then cooled to room temperature in the cooling mixer (3). This allows the VC monomer contents of the VC polymers employed to be reduced to the 1 ppm level or below. <IMAGE>