baber/WOPTO huggingface dataset:
Patent GB-1280681-A (GB)
Title: Apparatus and method for producing a large image array from a synthesised spatial frequency spectrum thereof
Inventor: LU SUN
IPC: G03B27/44
Filed: 1969-07-08
Abstract: 1280681 Generating a spatial frequency spectrum TEXAS INSTRUMENTS Inc 8 July 1969 [21 Oct 1968] 34324/69 Heading G2J In order to produce an array of similar images a hologram of the spatial frequency spectrum of the array is generated artificially. Coherent light from a laser 30 is divided by a beam splitter 32 into a reference beam reflected by a mirror 32 on to a photographic plate 20, and a beam which is reflected by a mirror 40 to pass through a phase control cell 42, be expanded by a beam expander 44, collimated by lens 48, pass through an aperture in a mask 50 and be focused by lens 52 so as to interfere with the reference beam on the plate 20. The mask 50 is movable in two dimensions by servomotors 54 and 56. A computer controls these servomotors and also the phase control cell 42, which may be a cylinder containing a fluid such as air whose pressure, and hence refractive index, is controlled by a valve 46, so as to generate a hologram of an array of point sources on the plate 20 corresponding to the spatial frequency spectrum of the desired array of images. The intensity of the points, which is controlled by the exposure time, falls off with increasing distance from the spatial frequency plane, so that it may only be necessary to use a small number of points. The spectrum may be regenerated from the hologram in the usual way and hence the desired array of similar images produced on a screen (12), Fig. 1 (not shown). The invention may be used in producing a printed circuit, the screen (12) then being a semiconductor wafer having a photo-resist coating.
Patent GB-321569-A (GB)
Title: Improvements relating to observation mirrors, particularly for use on motor vehicles
IPC: B60R1/04
Filed: 1928-11-22
Abstract: 321,569. Harris & Sheldon, Ltd., and Foulkes, H. A. Nov. 22, 1928. Look-out reflectors.-In an observation-mirror for use on motor-cars, motor-cycles &c. of the kind which, for adjustment purposes, is supported by a ball, cylindrical or like hinge, the socket 6 of the hinge is formed by members 7 which, on being drawn together by a bolt 11 or equivalent means to grip the ball &c. 2, are simultaneously caused to grip the mirror 4. In the construction shown the two parts of the socket 6 are formed by stamped-up portions 5 of two plates 7, each of which at its outer edge has a pair of bent-over lugs 8 engaging an edge of the mirror 4. The edges of the parts 5 are inclined to form wedges 9 which co-operate with corresponding inclined surfaces on a pair of channel-section clamping shoes 10 adapted to be drawn together by screwing a nut 12 on the bolt 11, thus causing the ball 2 on the support I and the mirror to be gripped simultaneously. In a modification the plates 7 are drawn together by a bolt and nut passing directly through the parts 5.
Patent GB-381397-A (GB)
Title: Improvements in or relating to locks or catches for document wallets, portfolios, orthe like
IPC: B42F13/00
Filed: 1931-12-11
Abstract: 381,397. Haspfastenings. FRANZEN, K. A., 70, Altenhofer, Solingen Wald, Germany. Dec. 11, 1931, No. 34440. [Class 44.] A fastening for portfolios &c. with flexible covers comprises a lock 2 projecting from the edge of the cover 1 to which it is rigidly attached by a plate 3, the flexibility of the cover allowing it to be moved into operative engagement with a catch member secured to the body 10 of the portfolio &c. As shown, this member comprises a stud in the form of a hollow rivet in two parts pressed together and with flanges 12, 14 between which the body 10 is clamped, a washer 15 being interposed. The stud has a head 8 which enters a cylindrical guide 17 formed in one with the back-plate of the lock casing, and is retained by a catch comprising a plate 5 with an extension 6 extending through an aperture in the casing wall and serving as a pivot on which the plate is moved into locking engagement by a spring 7. The plate has an aperture surrounding the stud and formed with a projection 19 which passes through a slot in the guide 17 into engagement with the stud. The plate has a nose 4 projecting from the casing and pressed inwards, when the lock case is grasped, to release the catch. The nose 4 may project laterally as shown, or from the lower end of the lock casing. A slidable spring bolt 21 housed in a slot in plate 5 and operable bv a key, may be moved into engagement with the stud on the side remote from the projection 19, to lock plate 5 against release movement.
Patent GB-1197914-A (GB)
Title: Internal-Combustion Engine Construction
IPC: F02M55/00
Filed: 1967-07-26
Abstract: 1,197,914. Joint-making packing. CUMMINS ENGINE CO. Inc. 26 July, 1967 [27 July, 1966], No. 34468/67. Heading F2B. [Also in Division F1] A cylinder liner 12 carries an elongated sealing ring 28 which engages against a ledge 31 on the block to seal a coolant cavity from the crankcase, the sealing ring groove 33 being inclined so that the ring is under maximum compresson at a point intermediate its length. The upper shoulder 32 of the ledge is bevelled to facilitate fitting of the liner 12 with its ring 28 into place. The ring 28 is of neoprene whilst supplementary 0-type sealing rings 26, 27 are of silicone rubber and buna-N respectively.
Patent GB-919736-A (GB)
Title: Improvements relating to devices comprising a shaft, a plurality of rotary members mounted on said shaft, and means for coupling any selected one of said members with said shaft
IPC: F16D21/04
Filed: 1960-10-07
Abstract: 919,736. Positive clutches. BIANCHO S.p.A., E. Oct. 7, 1960 [Oct. 10, 1959], No. 34469/60. Class 80 (2). Gear-wheels 2-5 are selectively locked to a shaft 1 by plungers 7 slidable in radial slots in the shaft and cammed outwardly into engagement with recesses 31 in the gearwheels by a cam 9 on an axially slidable selector shaft 8.
Patent GB-789553-A (GB)
Title: Improvements in or relating to apparatus for turning the ends and slotting the heads of wood screw blanks
Inventor: CAZZAMALI FLAMINO
IPC: B23G9/00
Filed: 1955-12-02
Abstract: 789,553. Pointing and slotting wood-screws. CAINI, G. Dec. 2, 1955, No. 34579/55. Class 83 (3). Apparatus for simultaneously pointing the ends and slotting the heads of wood-screw blanks comprises clamping-members for holding the blank, a milling-cutter on one side of the clamping-members, a turning-tool on the other side of the clamping-members and rotatable about the blank-axis, both displaceable in the direction of the blank-axis, with means for displacing the milling-tool and the turning-tool simultaneously in opposite directions along the axis, and means for opening and closing the clamping-members when the tools have been withdrawn. Blanks are fed from a shoot 38, which is brought into position by a cam 15 and bell-crank 39, to one end of which the shoot is attached. In the operative position, a leading blank in the shoot is aligned with a pair of gripping-jaws 21 pivoted about pins 22 and operated by toggle-mechanism 19, Fig. 4, from a spring 46, cam 17, Fig. 1, and tappet 43. After a blank has been so gripped a rotating pointing- tool 6 and a milling-cutter 27 are moved towards one another along the axis of the blank by cams 9, 16, respectively. The milling- cutter-support 25 is slidable along pillars 24 by a spring 47 and lever 41, and the cutter is driven by an electric-motor 26. The pointing-tool 6 is rotated by another electric motor 1 through belt-drive 3. The cam-shaft 10 is driven through a gear-box 12 by a motor 11. After the slotting-and-pointing operations, an arm 22, Fig. 4, carrying spring gripping-fingers, is moved by rack-and-pinion gearing and a camoperated lever 52 into position to engage the screw-blank. When released, it is moved to the broken-line position 30. The blank is now poised above a tubular shoot 44 and the arm 32 is moved downwardly by a cam 13 and lever 34, Fig. 1. The next swinging-movement of the arm 32 disengages the blank from the gripping- fingers so that it falls into the shoot, the arm 32 then returning to its starting-position.
Patent GB-492363-A (GB)
Title: Improvements in or relating to the manufacture of butyl alcohol, acetone, and isopropyl alcohol by fermentation
IPC: C12P7/28
Filed: 1936-12-16
Abstract: Butyl alcohol, a smaller amount of acetone and a still smaller amount of isopropyl alcohol are produced by fermenting a sugary mash with clostridium saccharobutyl-isopropyl-acetonicum beta, identified by its ability to ferment a molasses mash to give the above products, its inability to ferment cereal-starch mashes unaided, its inability to liquefy gelatine and by giving a positive bacteriological fermentation test for glycerine and sucrose.  The amount of isopropyl alcohol produced is usually from about 0,5 to 2,5 per cent of the solvent mixture.  Protein is added to the mash when necessary such as from potato, corn gluten, rye, barley, wheat, rice, beet pulp, soy bean, cotton-seed, linseed or copra meal, malt sprouts, slaughter house tankage, casein, glue, sewage sludge, bone meal, ethyl alcohol slop, including separated yeast water or fermentation slop, (degraded or hydrolysed, if necessary), amino-acids and urea.  Inorganic nitrogen in the form of ammonia or such of its compounds as the sulphate, carbonate, bicarbonate, chloride, phosphates, acetate, butyrate, hydroxide and lactate, in proportions of about 0,0002 to 0,1 per cent by weight of the mash may be added.  The presence of such inorganic nitrogen speeds up the fermentation and increases the acetone and decreases the butyl alcohol produced. The pH value of the mash may be regulated between 4,2 to 6,7 or even 7,5 or higher, preferably 4,8 to 6,5, by the addition of acid or base.  Sucrose is preferably inverted as by acid before inoculation.  With some types of mash, e.g. Cuban cane molasses, pH values below about 5,3 produce a somewhat higher ratio of acetone to butyl alcohol.  In examples the mash consists of a mixture of cane and beet molasses.  The inoculum may be prepared in a mash in a manner similar to that employed for the final mash and active or sporulated cultures may be used in the final inoculum.  Specifications 409,730 and 458,922 are referred to.
Patent GB-1397525-A (GB)
Title: Cleavage of enol ethers and ketals
IPC: C07C255/45
Filed: 1973-07-20
Abstract: 1397525 Cleavage of enol ethers and ketals ALLIED CHEMICAL CORP 20 July 1973 [21 July 1972 28 Feb 1973] 34633/73 Heading C2C A process for cleaving a C-C bond in a ketal wherein said bond joins the ketal group and a methylenic carbon atom, or the corresponding C=C bond in the corresponding enol-ether, comprises reacting a ketal and/or the corresponding enol-ether in which any substituents are substantially aprotic with at most two molar equivalents of a nitrous acid ester per mol. of ketal and/or enol ether in the presence of at most one equivalent, per mol. of nitrous acid ester, of an acid catalyst and an alcohol in an amount, including any alcohol which is formed in the reaction, of at least 0À5 equivalents per mol. of the ketal and/or enol ether, at a temperature sufficient to cleave the said bond and in a polar, aprotic non-basic solvent which does not react with the ketal or enol-ether at the reaction temperature.
Patent GB-1146673-A (GB)
Title: Improvements in or relating to pipe joints
Inventor: ROGERS JOHN WILLIAM
IPC: F16L19/10
Filed: 1965-08-13
Abstract: 1,146,673. Pipe joints. E. E. JEAVONS & CO. Ltd., [trading as JEAVONS ENG. CO.]. 11 Aug., 1966 [13 Aug., 1965], No. 34675/65. Heading F2G. A pipe joint, particularly for joining polythene or other plastics pipes, comprises a fitting 24 receiving a pipe 17, a union nut 26 screwed to the fitting, a sleeve 10 which has externally tapered end portions 15 and which surrounds the pipe, and two collars 11 and 12, which surround the sleeve end portions and have internally confronting tapered surfaces 20 of steeper inclination than the sleeve end portions and which are provided with chamfered circumferential flanges 19 at the ends adjacent their internal taper surfaces for engagement with more steeply chamfered surfaces on the nut and fitting so that, on tightening of the nut, the sleeve and collars move axially relative to each other and the end portions of the sleeve are radially deformed to grip the pipe at two circumferential bands or lines. The collars are provided with cylindrical portions 18 at their ends opposite to their flanged ends which engage in bores in the nut and fitting to centre the collars with respect thereto. The sleeve, as disclosed in Specification 1,028,663, is provided with two grooves, Fig. 2 (not shown), either side of a cylindrical centre sleeve portion 14 so that, on excessive tightening of the nut, the sleeve collapses to grip the pipe at two further circumferential bands or lines. Alternatively, a single V-section or partcircular section groove may be positioned at the mid-point of the sleeve. The sleeve end portions may be provided with tubular extensions which mount the collars. An externally-flanged metal liner 28 supports the pipe end internally. The sleeve and collars are of brass.
Patent GB-986047-A (GB)
Title: Organic sulphide-dodecaborane addition compounds, derivatives and salts thereof
Inventor: MILLER NORMAN EARL
IPC: C07F9/54
Filed: 1963-09-03
Abstract: The invention comprises compounds of the formula B12H10.2SRR1 (I) wherein R and R1 are monovalent organic groups or may be joined together to form a single divalent organic radical; salts of the formula M[B12H11.SRR1] (II) wherein M is a group which forms a cation in aqueous solution, O is at least 1 and is the valence of M; substitution products of the formulae B12H10- yXy.2SRR1 (III) and M[B12H11- y1Xy1.SRR1]b (IV wherein X is a group which can be bonded to a nuclear carbon atom of a carbocyclic aromatic compound in place of hydrogen, y is 1 to 10 and y1 is to to 11.  X includes the following: halogens, hydrocarbon, -COOH, carbamyl, halocarbonyl, halomethyl, -OH, -OR2, -CH(OR2)2, -OCOR2, -CO.OR2, -NCO, -CNO, -CNS, -NCS, -SR2, -CH2OH, -CH2OR2, -CH2NR22, -CN, -NH2, -NR22, trihalomethyl, -COR2, -CHO, -NO2, -NO, -N = N-Ar, -SO3H, -SO2R2, -HgOCOCH3, where R2 is a monovalent organic group.  M can be H+, H3O+, a metal, aminine complex, NH4+, NH2-NH3+, N-substituted ammonium or hydrazonium, S-substituted sulphonium and P-substituted phosphonium. Compounds of the type B12H10.2SRR1 are made by heating a boron hydride BmHm+4, where m is 2, 5 or 10, with an organic sulphide-borane adduct BH3.SRR1 to an elevated temperature at which hydrogen is released as a by-product. Contacting the product with a cation gives M[B12H11.SRR1]b. The organic sulphide borane adduct is made by reacting SRR1 with diborane at a temperature lower than that required above.  The substitution products III and IV are made by reacting compounds I or II with a reagent capable of introducing a monovalent substituent into a benzene nucleus.  The salts II and IV may be transformed into other salts by cation exchange.  By contacting salts II or IV with the hydrogen form of an acidic ion-exchange resin, acids of the type HB12H11.SRR1 or HB12H11- yXy.SRR1 are formed.  These acids are useful as catalysts for the reaction of alcohols and organic carboxylic acids to form esters. Detailed examples are given.ALSO:A mixture of hydrocarbons in the boiling range of gasoline which contains a copper salt of an organic acid (e.g. copper stearate) is thoroughly agitated with an aqueous ammoniacal solution of an alkali metal or alkaline earth metal salt of the formula M[B12H11.SRR1]b where M is a cation, b is the valence, R and R1 are monovalent organic groups or may be joined together to form a single divalent organic radical, e.g. CsB12H11.S(CH3)2, or NaB12H11.S(CH3)2 to free the hydrocarbon layer from copper salt. Substituted ammonium, phosphonium or sulphonium salts of the above formula are also useful to remove undesirable metals from hydrocarbon media, e.g. (CH3)4NB12H11S(CH3)2 and (C2H5)3 NHB12 H10 SCH3.S(CH3)2.
Patent GB-282695-A (GB)
Title: An improved process and a machine for ensuring mechanically a uniform distribution of the impregnating medium such as starch on articles of washing or linen
IPC: D06F87/00
Filed: 1927-12-22
Abstract: 282,695. Denhof, H. Dec. 23, 1926, [Convention date]. Starching.-Apparatus for distributing and working in starch, particularly into articles such as collars and cuffs, comprises a group of brushes 11 reciprocated in the direction of travel of the articles during rotation of the brushes. The brushes are followed by a group of elastic pressure rollers 28 reciprocated across the work which then passes under a wiping device 40 similar in construction to the first group of brushes. The articles may then be taken from their support, reversed and sent through the plant again, or the plant may be duplicated as shown, and in which case automatic means 50 mav be provided for reversing the articles. The automatic means comprise a pair of co-operating suction heads actuated by crank discs and connecting rods. The distributing means are lifted from the articles whilst they are moving forward, the articles remaining stationary during treatment. The conveyer is cleaned by jets and brushes 61, 62.
Patent GB-448334-A (GB)
Title: Process for the production of valuable low-boiling hydrocarbons from products of thedestructive hydrogenation of coals
IPC: C10G47/00
Filed: 1934-12-04
Abstract: Hydrocarbons of low boiling - point are obtained by treating destructive hydrogenation products, which boil between 170 and 400 DEG  C. and are free from hard asphalt, with liquefied hydrocarbons gaseous at ordinary temperature (to remove resinous substances and like impurities) and subjecting the refined products to destructive hydrogenation.  In the destructive hydrogenation of bituminous coal the products issuing from the reaction vessel are passed into an adjacent catch pot in which unconverted coal, ash, the asphalts formed, and some of the heavy oil are separated.  The remaining products pass in the vaporous stage to a further separator and the condensate obtained is fractionally distilled.  The fraction boiling from 200 to 400 DEG  C., is treated at 50 DEG  C., with five times its amount by volume of propane, and the dark oil which forms is separated off, The refined distillate is then destructively hydrogenated at 440 DEG  C., and 200 atmos. in presence of tungsten disulphide and a product containing 50 per cent benzine is obtained, the middle oil being recirculated.  The anti-knock value of the benzine may be improved by aromatization, cracking in presence of catalysts or by dehydrogenation.
Patent GB-448453-A (GB)
Title: Improvements in or relating to the manufacture of porous bodies
IPC: B24D3/18
Filed: 1934-12-07
Abstract: In the manufacture of porous articles by forming a slip containing granular material-binding material, and a gas-producing material comprising hydrogen peroxide, and puddling into a mould, gas production is retarded so that no appreciable evolution of gas takes place until the slip is in the mould.  A stabilizing agent such as acetanilide, or magnesium sulphate can be added and the temperature of drying varied to effect a predetermined rate of gas evolution. Alternatively, a buffer solution such as sodium pyrophosphate or stannate can be added which also has a deflocculating effect so that the same fluidity is obtained with less water.  The stability can also be maintained by lowering the pH of the mix, as by addition of sulphuric acid, to equal that of the peroxide, or by removing the catalytic substances from the basic ingredients by washing with acid and then washing out the acid.  In some cases, definite types of bonds and grains can be mixed so that the catalytic decomposing effects neutralize one another.  Decomposition can also be retarded by maintaining a low temperature during mixing and transfer to the mould.  In examples, (1) to a mixture of alumina, clay, and water containing acctanilide and ethyl alcohol, a glue solution is added and mixed, and hydrogen peroxide solution then added followed by further mixing.  The mix is immediately puddled into a mould and dried at room temperature; (2) alumina, clay and a solution of sodium pyrophosphate and stannate are mixed, glue and hydrogen peroxide added consecutively as in (1) and the mixture dried; (3) sulphuric acid solution is used in place of the stabilizing solution of (1). Alternatively, the grain is treated with dilute hydrochloric acid, washed, and dried, while the clay is washed with sufficient sulphuric acid to give a pH of 1.7.  After standing overnight the clay is washed until the pH is 6.6 and dried.  The treated grain and clay are mixed with water, glue and hydrogen peroxide solutions added successively, and the mix dried.  Specification 371,245 is referred to.  The Specification as open to inspection under Sect. 91 includes the use of gas-producing materials other than hydrogen peroxide. This subject-matter does not appear in the Specification as accepted.
Patent GB-1532580-A (GB)
Title: Multipolar wire-wrap connector
IPC: H01R9/15
Filed: 1977-08-23
Abstract: 1532580 Wire-wrap connectors INTERNATIONAL STANDARD ELECTRIC CORP 23 Aug 1977 [27 Aug 1976] 35271/77 Heading H2E For interconnecting wires of different diameter, e.g. within and without an apparatus, a multipolar wire-wrap connector has sharpedged posts 2, 3, 4 extending through an insulating body 1, the posts each having different transverse cross-sectional areas on the two sides of the body.  Upstanding frangible walls (5, 6, 7, Figs. 3, 4, not shown) may protect the thinner ends 3 of the posts.
Patent GB-1148984-A (GB)
Title: Water-dilutable surface coating addition copolymers
Inventor: HUNT THOMAS
Filed: 1966-08-06
Abstract: 1,148,984. Unsaturated ether-alcohols. BP CHEMICALS (U.K.) Ltd. 28 June, 1967 [6 Aug., 1966], No. 35304/66. Heading C2C. [Also in Divisions B2 and C3] Etherified addition products are made by reacting under etherification conditions an alkylene oxide and an aliphatic alcohol containing at least one #,γ-ethylenically unsaturated aliphatic group adjacent to an hydroxyl group or an ether oxygen atom in a molar proportion of oxide to alcohol in the range 1 : 1 to 5 : 1. In the examples propylene oxide is reacted with allyl alcohol or trimethylol propane diallyl ether in the presence of a boron trifluoride/ acetic complex.
Patent GB-832332-A (GB)
Title: Improvements relating to farming equipment adapted to be hauled
IPC: A01B33/06
Filed: 1958-11-04
Abstract: 832,332. Rotary-scythe mowers ; rotary cultivators. GARD, R. Nov. 4, 1958 [Feb. 20, 1958], No. 35311/58. Classes 6(1) and 6(3). A tractor-drawn agricultural implement having tools rotary about a vertical axis, such as a mowing machine or rotary cultivator, comprises a body 1 carried on rear ground-wheels 2, a tool-carrying vertical shaft 6 rotatable on the body, a radial frame 10 pivoted on the body about the axis of the shaft 6, means for securing the frame to the body in any desired direction, a gear-box support 16 pivoted on the frame 10 about the axis of a vertical shaft offset from the tool-shaft, the two vertical shafts being connected together by a belt-drive 30, a drawbar 23 being pivoted to the support 16 and a driving shaft 26 being connected to the gearbox 28 thereon. The rear wheels are mounted on a U-shaped axle 3 pivoted to the body and adjustable by a lead-screw and crank 4. The frame 10 comprises arms pivoted to a central bearing and carrying a plate 13 at their outer end. The support 16 comprises a turntable rotatable on a trackway on the plate, the turntable having upstanding rear lugs 18 for the pivotal attachment of the drawbar 23 and having multi-apertured forward lugs, Fig. 8 (not shown), enabling the drawbar to be secured in various adjusted positions. The frame 10 and drawbar may be moved to the dotted positions 32, 33, 34, Fig. 2, the frame being held against the body 1 by hooks 11.