baber/WOPTO huggingface dataset:
Patent GB-552931-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A41F1/06
Filed: 1941-10-28
Abstract: 552,931. Sliding clasp fasteners; gauntlets. MARLOW, E. H., and FLASH FASTENERS, Ltd. Oct 28, 1941, No. 13893. [Class 44] [Also in Group VII] The sliding clasp fastener shown as applied to the cuff 12 of a gauntlet, the stringer tape or the material of the garment is stiffened by an insert of wire, or strip of whalebone, celluloid, thin metal, or other material, to prevent crumpling collapse of the material during opening movement of the slider, particularly when, as in the case of a gauntlet, only one hand is available so that the material cannot be held against the pull of the slider. As shown, wire 18 threaded through the tape as at 19, has its outer end 21 bent at right angles and achored against endlong movement by stretching in a fold of the tape 20. Its other end 24 is rounded or of spatulate form and is housed in a pocket 22 so as to be capable of limited sliding movement.
Patent GB-376417-A (GB)
Title: Improvements in the manufacture on circular knitting machines of stockings and in machines therefor
IPC: D04B1/26
Filed: 1931-05-11
Abstract: 376,417. Stockings. STEINMœLLER, M., 53, Lange Strasse, and HILSCHER, A., HILSCHER, C., and HILSCHER, E., (trading as HILSCHER, G. [Firm of]), 8, Beckerstrasse, both in Chemnitz, Germany. May 11, 1931.No. 13920. [Class 141 ]. Fashioning marks are made during the formation of the fashioned portion of a stocking upon a circular knitting machine. The fashioning marks 1 may be as shown in the Figure, or fashioning marks may be made on two adjacent wales at each side of the fashioned fabric. The marks 1 are preferably formed in a line parallel to the seam.
Patent GB-1299537-A (GB)
Title: Pack for epitactically coated semiconductor discs
IPC: B65D21/02
Filed: 1970-03-23
Abstract: 1299537 Packaging semi-conductor discs; boxes WACKER-CHEMIE GmbH 23 March 1970 [1 April 1969] 13930/70 Headings B8C and B8P Epitactically coated semi-conductor discs 7 are located in compartments 5 of pallets 1 which are stacked so that each disc is engaged by a holder 12 attached to the superposed pallet to secure the discs against movement. Each holder comprises a set of radial plates 14 secured to a boss 13 which is a friction fit over an annular stud 11 on the bottom of a compartment 5. The compartments are rectangular and include part spherical bottoms on which the discs rest. Each bottom has diametrically opposed recesses, Fig. 2 (not shown), so that the discs may be easily gripped by tweezers. Each part spherical bottom may be surrounded by an annular rim to limit movement of the discs. The bottom pallet carries no holders; a lid 2 is provided with holders. The holders are made of polypropylene and the pallets and lid of polystyrene.
Patent GB-798761-A (GB)
Title: Improvements in or relating to locking mechanism for safe files
IPC: E05B65/462
Filed: 1956-05-04
Abstract: 798,761. Multiple fastenings; locking devices. SPERRY RAND CORPORATION. May 4, 1956 [Oct. 7, 1955], No. 13947/56. Class 44 A locking mechanism for a filing cabinet comprising a plurality of superposed drawers is characterized by lock rods 31, 32 disposed for vertical movement in opposite directions on respective sides of the cabinet and carrying locking elements 56 which engage corresponding locking elements 60 on the drawers when they are closed, locking engagement being effected by manually operative means. As described, a U-shape bar 36, mounted in the partition 15 between two drawers 22, 23, is pivoted at each end 39 to brackets 40 secured to the inner side walls of the cabinet, and a pin 42 extends from the rear of the left limb 38 of the bar 36 and engages a slot 43 in an arm 44 secured to the lock rod 32. Similarly a pin 47 extends from the front of the right limb 37 of the bar 36 and engages a slot 48 in an arm 49 secured to the lock rod 31. A spring 54 urges the bar 36 backwards and the lock rods 31. 32 upwards and downwards respectively into the unlocked position. A plunger 62 mounted in the front of the drawer 23, engages a projection 63 on the limb 37 when the drawer is closed, and depression of the plunger then rocks the bar 36 against the action of the spring 54 thus urging the rods 31, 32 into the locked position, which position is maintained by operation of a combination lock 69, mounted adjacent the plunger 62, causing a bolt 71 to move in front of an abutment 65 on the plunger and thus hold it depressed. The outer end 67 of the plunger is painted, preferably red, and provides clear visible warning when it is protruding that the cabinet is unlocked. When the drawers are closed, the studs 58 on the locking elements 56 engage the horizontal slots 61 of the locking elements 60, and actuation of the locking mechanism then urges the studs along the vertical slots 61<SP>1</SP> which are disposed downwardly and upwardly respectively acording to the oppositely directed motions of the lock bars. A horizontal stop flange 68 is fitted to each drawer thus preventing downward locking movement of the studs 58 attached to the bar until all drawers are closed.
Patent GB-1420321-A (GB)
Title: Pile  fabrics and methods of making them
IPC: B32B5/12
Filed: 1972-03-24
Abstract: 1420321 Pile fabrics I W S NOMINEE CO Ltd 26 March 1973 [24 March 1972] 13966/72 Addition to 1283078 Heading D1K Pile fabric is formed by bringing the free ends of the pile of a first pre-formed pile fabric into contact with a softened pre-formed layer of thermoplastics material under pressure, and then severing the pile between the backing of the first pile fabric and the layer of thermoplastic material. The thermoplastic layer may be polyethylene, polypropylene, polyamides such as nylon 6, polyvinyl such as polyvinyl chloride, polyvinylacetate and polyvinylidene chloride, polyacrylics and modacrylics, polyurethanes and cellulose esters such as cellulose acetate and may be 0.001 to 0.01 inches thick. The first pile fabric may be an Axminster carpet with woollen/nylon or wholly woollen tufts. A pressure of 10-500 pounds p.s.i. may be employed and the thermoplastics layer may be softened by heating.
Patent GB-138536-A (GB)
Title: Improvements in and connected with centrifugal and turbine pumps and the like
IPC: F04D29/22
Filed: 1919-06-04
Abstract: 138,536. Gull, A. E. June 4, 1919. Centrifugal ejector pumps.-Blade-like jets of liquid emerge from narrow nozzles i in a rotor a and act as rotor blades on the liquid introduced at the eye n. The liquid for the blade jets is taken from the liquid in the discharge chamber o and enters the rotor through a grid m. It is centrifuged by blades g within the rotor.
Patent GB-894261-A (GB)
Title: Treating oxide-coated aluminium surfaces
IPC: C23C22/83
Filed: 1960-04-21
Abstract: 894,261. Seating anodized aluminium surfaces. COHN, C. C., and COHN, S. L., [trading as COLONIAL ALLOYS CO.]. April 21, 1960 [Aug. 26, 1959], No. 14106/60. Class 41. Anodized aluminium surfaces are sealed and rendered resistant to corrosion, by first treating with a solution containing a salt of a weak metallic base, whereby an insoluble metal compound is deposited on the oxide coating, and then treating with sodium silicate solution, preferably having an SiO2: Na2O content ratio of at least 2 : 1. The metal salts are preferably nickel or cobalt acetate, and used at a pH of 4.5 to 7.5 and above 40‹ C. The anodized surface may be first dyed. The final coating may be further treated with acid or an alkali, preferably dilute NaOH or H3PO4. The anodizing step may be effected by any method, e.g. H2O4. The treatment with sodium silicate solution may be electrolytic or by dipping into the solution. Specification 413,814 and U.S.A. Specifications 1,946,153 and 2,161,636 are referred to.
Patent GB-698004-A (GB)
Title: Improvements in or relating to reflex photographic cameras having built-in photo-electric exposure meters
IPC: G03B17/20
Filed: 1950-06-14
Abstract: 698,004. Photographic reflex cameras; exposure meters. ZEISS IKON AKT.-GES. June 14, 1951 [June 17, 1950], No. 14125/51. Class 98 (i). [Also in Group XL (b)] A reflex camera including a built-in photoelectric exposure meter and an optical system, preferably comprising a reversing prism and a viewing lens, arranged above a focusing screen to form a view-finder, is characterized in that pointers connected to the exposure meter, the diaphragm setting, and the shutter speed are disposed in a space between the camera focusing screen and the view-finding optical system within the normal accommodation of a viewing eye so as to be visible in the said view-finder. As shown, a reflex camera body 2 is provided with a photo-electric cell 16 having an adjustable diaphragm 15. Within the body is mounted as a unit 1 a viewing system comprising a plano-convex field lens 3 having its plane face ground to serve as a focusing screen, a pentagonal roof prism 4, and an eyepiece 5. Either the plane face or preferably the convex face of the lens 3 is provided with camera objec. tive diaphragm and shutter speed scales and a datum mark with which co-operate respectively the tips of levers 7, 8 and the needle 6, Fig. 5 (not shown), of an electric meter operated by the photo-cell, the tips of all three pointers being located between the lens 3 and the prism 4. The aperture to be used during exposure is selected by means (not shown) which also alters the opening of the diaphragm 15. The camera objective diaphragm aperture may be adjusted by means of the pre-selection device described in Specification 698,001. This selection in turn rotates a sleeve 14 carrying a cam 13 which is followed by a lug 12 on an arm 10 secured to a pivot 9 to which also is secured the lever 7. The exposure time is then adjusted so that the lever 8 is rotated and a lever 26 pivoted at 27 and engaging the nose of a lever 22 pivoted at 23 is rotated by means of a cranked rod 17 which engages a projection 21 on the lever 22 and which is itself rotated by the lever 8, so that a gear segment 29 on the lever 26 rotates the electric meter bodily until its needle is aligned with the datum mark. Specification 690,079 also is referred to.
Patent GB-560908-A (GB)
Title: Improvements in or relating to the production of substituted phenols
IPC: C07C37/14
Filed: 1942-10-09
Abstract: Alkyl or aryl-alkyl substituents are introduced into the nucleus of phenolic compounds by heating the phenol with an unsaturated organic compound and a catalysing composition comprising an oxy compound of boron, including an oxide or acid of boron, or an alkyl, alkenyl or aryl borate, together with oxalic acid, or an alkyl, alkenyl or aryl ester thereof.  Suitable boron compounds are B2O3, MnH4(BO3)2, H3BO3, Na2B4O7, (NH4)2B4O7, triamyl borate, allyl borate and triphenyl borate.  The phenol compound may be phenol, isomeric cresols, xylenols, phenyl phenols, benzyl phenols, resorcinol, pyrogallol and naphthols.  The unsaturated organic compound may be an olefine, diolefine, unsaturated acid, alcohol, aldehyde, ketone, or ester, or styrene or stilbene.  Substituted phenols of high molecular weight and viscous to solid resinous bodies are obtained when phenols are condensed with diolefines, butadiene or isoprene.  Natural resins which have carbon-to-carbon linkages and have unsaturated acids or esters as part of their structure, e.g., rosin or its alkyl esters such as methyl abietate and ester gum are improved when treated with phenolic compounds in presence of the catalyst compositions.  Drying oils such as linseed oil, oiticica oil and tung oil containing substantial amounts of glycerides of unsaturated acids may be treated with phenols in accordance with the process and the products are in general reactive with formaldehyde, hexamethylenetetramine, or other methylene-containing compounds to yield heat-hardenable compositions. Examples are given of the preparation of di-tertiary and paratertiary butyl phenol, amyl phenol, ortho- and para-tertiary octyl phenol, a resin from butadiene and phenol, a phenol-treated rosin soluble in drying oils to make varnishes, a phenol-treated linseed oil useful as binder in moulded materials, thymol, a resin from methyl abietate and phenol, oily-substituted phenols from phenol and styrene, and ortho- and paratertiary octyl phenol.  Specification 536,338 is referred to.
Patent GB-1413938-A (GB)
Title: Methods of testing computer programmes
IPC: G06F11/36
Filed: 1974-03-30
Abstract: 1413938 Testing computer programs INTERNATIONAL BUSINESS MACHINES CORP 30 March 1974 14245/74 Heading G4A A test program 1, e.g. designed to test a particular aspect of a compiler program, is compiled 4, 6 using the compiler under test, e.g. PL/I Optimizing compiler, and a standard compiler, e.g. PL/I Checkout compiler to produce two sets of object code 5, 7 which are then run concurrently (8) on a multiprogrammed computer, equivalent variables from the two sets of object code being compared, 9, to detect errors in either compiler. The test program may include a subroutine call after each group, e.g. 5, of statements, the subroutine in one compiler assigning all variables to an area which is accessible to the other compiler and the subroutine in the other compiler comparing all variables with those in the accessible area. The two subroutines are interlocked and return to the processing of test program statements when a successful comparison has been made, otherwise a compiler error is indicated, stored error correcting options are recorded on an output file, and the test program is recompiled using the stored options.
Patent GB-968101-A (GB)
Title: An improved explosively operated initiator
Inventor: SCHERMULY ALFRED JAMES
IPC: F16K17/40
Filed: 1961-04-20
Abstract: 968,101. Cartridge-operated devices and igniters; firing devices; storing gases. SCHERMULY Ltd. April 19, 1962 [April 20, 1961], No. 14251/61. Headings F3A, F3C and F4P. An explosively-operated initiator, primarily intended for maintaining open the valve of a compressed-air bottle for use with waterbourne life-saving devices, comprises a casing 1, a plug 4 which houses a piston 8 within a bore 7 and an explosive charge 15 which on ignition causes the piston 8 to move from its rest position to an operative position where it is retained by means which extend into said bore. In the embodiment shown a percussion ignition device 10 comprises a spring striker assembly 12, 13 held cocked by a forked plate 25, and a percussion cap 16. The initiator is operated by removing a split-pin 27, to release a cap 26, and then by withdrawing the plate 25 to cause ignition of the charge 15. The piston is held in operative position against the action of a spring 19, by the co-operation of a spring-urged peg 20 with a groove 21. In another embodiment the device 10 is replaced by an electric ignition device which preferably utilizes a water-activated cell 33 (Fig. 2, not shown). Also the retaining means may alternatively comprise a lever or pawl or a spiral strip spring 42 (Figs. 3, 4, not shown), which is forced by the explosion to enter bore 7 behind the piston, the spring expanding within the bore to prevent return movement of the piston. Specification 854,003 is referred to.
Patent GB-1459070-A (GB)
Title: Hydraulic jacks
IPC: B66F1/02
Filed: 1975-04-08
Abstract: 1459070 Step-by-step jacks SHIMIZU CONSTRUCTION CO Ltd 8 April 1975 [24 July 1974] 14456/75 Heading B8J [Also in Divisions E1-E2] A step-by-step jack comprises an hydraulic cylinder 11 to the upper end of which is attached a chuck unit 30A while a similar chuck unit 30B is attached to the lower end of a piston rod 13 extending through the cylinder 11 from a double acting piston 12 in the cylinder 11. The chuck units 30A, 30B each comprise a casing 31 with collet pieces 32 urged out of engagement with a jack rod 1 passing through the jack by a release spring 35. An iron core 33 forces the collet pieces 32 into gripping engagement with the rod 1 when an excitation coil 34 is energized to attract action flange 36. The length of stroke of the jack can be adjusted by selecting one of three limit switches (22a, 22b, 22c), Fig. 4 (not shown), on switch section 22, arranged to cooperate with a switching member 24 on the upper end 13a of the piston rod 13. A level controlling mechanism 21 is provided to inter-relate the action of a plurality of the above jacks utilized to lift a structure. This includes a float chamber 21 with a float 212 having slits (213a, 213b), Fig. 4 (not shown), arranged to co-operate with a photo-electric device 23. At the end of, for example, a lifting stroke the corresponding lower chucks 30B may not be level one with the other owing to differential slipping (which difference may be increased by relative slipping between the corresponding upper chucks 30A), Fig. 7 (not shown). The float chambers 21 are placed in communication and the return stroke of the piston 12 is controlled by the photo-electric devices 23 ensuring that the next working cycle starts with both the lower chucks 30B at the same level (regardless of the positions of the upper chucks 30A). Fig. 3 shows a modification of the chucks 30A, 30B wherein the upper surfaces of the collet pieces 32 are dished to improve release of the collet pieces 32 from the rod 1 under the action of the spring 35. Jacks of the above kind are used, for example, in the slip form method for building chimneys, silos and storage towers or in the lift-up method for lifting roofs, beams and slabs formed on the ground. As shown in Fig. 9 the inclination of a tower structure can be converted by disposing the jacks on the circumference of the structure, the pipes to the water reservoirs being closed. The limit switches (22a, 22b, 22c) in the section 22 and the slits (213a, 213b) can be selectively operated so that the jacks on the X 1 , X 2  side have different strokes, enabling the structure to be inclined as required.
Patent GB-1221102-A (GB)
Title: Titanium dioxide pigments
Inventor: BROWN ARTHUR DOLBY
IPC: C09C1/00
Filed: 1968-03-26
Abstract: 1,221,102. Pigmented stoving enamel. BRITISH TITAN PRODUCTS CO. Ltd. 12 Feb., 1969 [26 March, 1968], No. 14471/68. Heading C3R. [Also in Division C1] In making a stoving enamel, pigment particles consisting of titanium dioxide incorporating minor amounts of compounds of mobium, zinc, aluminium and silicon (see Division C1) are milled with ballotini in a mixture of butanol, xylene, urea/formaldehyde resin and an alkyd resin band on phthalic anhydride, a non-drying oil and glycrol.
Patent GB-1074277-A (GB)
Title: Burnishing tools
IPC: B24B15/00
Filed: 1966-04-01
Abstract: 1,074,277. Burnishing. B. L. LINDGREN. April 1, 1966 [June 4, 1965], No. 14575/66. Heading B3X. A burnishing tool for valve seats of taps, faucets and the like, comprises an elongate tubular housing 12, one end of which is shaped to define a non-circular opening 22 while the other end is closed by a cover 16, an elongate compression spring 20 within the housing, an elongate spiral actuating rod 28 passing through the opening, the end of the rod within the housing having an abutment member 34 to engage the adjacent end of the spring, and the other end of the rod carrying a burnishing element 30 so that when the element is placed on a tap seat, up-and-down movement of the housing causes rotary movement of the rod and burnishing element.
Patent GB-327889-A (GB)
Title: Improvements in lawn roller scraping bars
IPC: A01B29/00
Filed: 1929-05-10
Abstract: 327,889. Lilly, J. May 10, 1929. Wheel scrapers. - Scraper bars for lawn and like rollers consist of a strip or strips c of wood or metal provided in the centre with a stud h which passes underneath the frame cross-bar b so as to hold the strip in contact with the roller. The ends of the bar may be bent round or may be provided with angle bolts e to engage the side frames a, the bolts being adjustable to different positions to suit rollers of different widths. The strip may be in two overlapping lengths connected by the contact stud, which may be fitted with a weight to increase the pressure on the roller.
Patent GB-797466-A (GB)
Title: Improvements in and relating to hydraulic jack installations
IPC: H01H33/34
Filed: 1956-05-10
Abstract: 797,466. Hydraulic actuation of switches. GRATZMULLER, J. L. May 10, 1956 [May 13, 1955], No. 14600/56. Class 38 (5). In a main single-acting hydraulic jack for a circuitbreaker, movement of the movable member by pressure is opposed by a returning force exerted, e.g., by a weight or spring, and the movable member is locked in position after hydraulic operation by a biased locking member which can be disengaged by an auxiliary hydraulic jack, the exhausting of the main jack occurring slightly after the application of pressure to the auxiliary jack. In one form, Fig. 1, the movable member comprises a piston 2, piston-rod 5 and platform 4 for a biasing weight 3, pressure being applied to the cylinder 1 from a source 31 over a valve 6. When the piston 2 is moved to the upper position shown, a locking bolt 8 biased by a spring 12 (or a weight, not shown) engages a recess 11 in the rod 5. When the movable member is to be released, an electromagnet 28 is energized so that a rod 25 attached to its armature opens a ball valve 20 to connect the working space of cylinder 1 through pipes 19, 17 to the cylinder 16 of the auxiliary jack, whose piston 15 is moved to the left to release the bolt 8. Slightly afterwards, the piston 15 uncovers a passage 24 to exhaust the cylinder 1, and passages 19, 17 to a sump 23. A drain 22 leading to the sump 23 removes any liquid leaking past the ball valve 20, this drain being blocked by the rod 25 when the electromagnet 28 is energized. In Fig. 2, the piston 2 is biased by a spring 39 and piston 15 acts on the bolt 8 through rods 35 and an effort-limiting device comprising a telescopic assembly 36, 37 and a spring 38, so that if the friction between bolt 8 and groove 11 becomes too great due to leakage in the main jack, the bolt is not released. The piston 15 also opens a ball-valve 34, after the bolt has been released, to exhaust the cylinder 1 via pipes 19, 19a and 24a.
Patent GB-486355-A (GB)
Title: Process for the alkylation of paraffin hydrocarbons
IPC: C07C2/62
Filed: 1937-05-26
Abstract: Boron fluoride is prepared by heating potassium borofluoride with boric oxide and sulphuric acid.ALSO:Low-boiling liquid paraffins are produced by alkylation of normally gaseous paraffins with normally gaseous olefines at about -50 to 10 DEG  C. in the presence of a catalyst comprising boron fluoride, nickel, and hydrogen fluoride or water or both.  Propane or butanes may be alkylated with propene, butenes, or ethylene by passing the hydrocarbon mixture with boron and hydrogen fluorides over finely divided nickel, if desired on a support, withdrawing liquid products, and treating the vapours to separate hydrocarbons and fluorides, the latter being recycled.  The paraffins and olefines are preferably in the molecular ratio of 3 : 1.  The products may be fractionated to yield gasoline of high anti-knock rating.  The boron fluoride may be prepared by heating potassium, borofluoride with boric oxide and sulphuric acid.  In examples, a liquefied mixture of isobutane and normal butenes or isobutene is introduced into an autoclave containing Ni, BF3, HF and some isobutane at 0 DEG  C. to form mainly iso-octanes.