baber/WOPTO huggingface dataset:
Patent GB-1461215-A (GB)
Title: Apparatus for sewing slide fasteners to stretchable material
IPC: D05B35/06
Filed: 1975-02-05
Abstract: 1461215 Sewing machine WILLIAM PRYM-WERKE KG 5 Feb 1975 [16 Feb 1974] 4983/75 Heading Dl To assist in the sewing of a sliding clasp fastener to an opening in stretch fabric (e.g. in stretchable covers) a sewing machine 1 is provided with a track 6 carrying a tensioning slide 5 provided with a clamp 3 for the fastener end and a peg for engagement by an end of the opening, the slide being urged towards the end of the track by, as shown, a weight 7 and a cable 8. Spring buffers (10, Fig. 2 not shown) are provided at the end of the track. The specification describes the manner in which a fastener is sewn into a tubular cushion cover.
Patent GB-176775-A (GB)
Title: Improved chain especially suitable for use in conveyors and the like
IPC: B65G17/38
Filed: 1922-02-21
Abstract: 176,775. Wilmot Engineering Co., (Assignees of Law, J. C.). March 9, 1921, [Convention date]. Driving and like chains with separate joint pins.-Chains for coal - handling machines &c. comprise alternate single links 1 and double links 2 having thickened ends so that the width of the chain may be decreased by sliding the links 1 within the links 2 from the position shown in Fig. 1 to that shown in Fig. 3, the links being connected together by pintles 8, Fig. 5, adapted to be passed through slots in them when collapsed as shown in Fig. 3, and the pintles having angular members 10 which are lodged in the said slots to prevent the pintles from rotating. To assemble the chain, the pintles are passed into the collapsed links and are then turned through a right-angle, and then the links 1 are drawn apart to expand the links 2. To take up wear in the chain, washers 20 shaped as shown in Fig. 8 are inserted between the heads 9 of the pintles and the link-plates as shown in Fig. 6. The pintles may be extended axially, as shown at 15, Fig. 9, to engage in notches in the flanges of driving-pulleys. In a modification, the central cylindrical parts of the pintles are made too short to permit the necessary turning movement when being inserted into links arranged as shown in Fig. 3. In this case, the width of the links must be further reduced by turning the links 1 into the position shown in Fig. 11, so that only their thin central webs come between the plates of the links 2. The heads 9 of the pintles may be lodged in recesses 2<b> in the plates 2 as shown in Fig. 13.
Patent GB-525166-A (GB)
Title: Improvements relating to modulators and demodulators
IPC: H03C1/58
Filed: 1939-02-16
Abstract: 525,166. Modulating systems; receiving circuits. SIEMENS BROS. & CO., Ltd., and REED, M. Feb. 16, 1939, No. 5061. [Class 40 (v)] A balanced modulator or demodulator, particularly for carrier wave telephony where for example twelve channels are each modulated on to its own sub-carrier, the lower sidebands from each being modulated on to a main carrier, has a filter X inserted in the feed circuit from the carrier source G. This circuit prevents the circulation of out-of-balance currents which are liable to produce undesired cross-modulation effects.
Patent GB-680030-A (GB)
Title: Improvements in or relating to electrical condensers
Inventor: BENNETT ARTHUR EDWARD CHARLES
IPC: H01G4/06
Filed: 1950-02-28
Abstract: 680,030. Electric condensers. DUBILIER CONDENSER CO. (1925), Ltd. Jan. 26, 1951 [Feb. 28, 1950], No. 5079/50. Class 37. An electric condenser consists of two discs A, B of dielectric material, at least one of which has metal coatings on both sides, the discs being clamped by a bolt G about an opening in a conducting wall C, the bolt being connected to one of the conducting layers and at least one of the discs A, B has an annular recess to co-operate with the aperture in the wall. As shown, both discs have metal coatings, and the bolt G is connected to the outer coatings D<SP>1</SP>, El, while the inner coatings D, E are connected to the wall C but not to the bolt. The condenser acts to bypass high-frequency energy in the lead H passing through the wall C.
Patent GB-127929-A (GB)
Title: Improvements in Machine Gun Magazines.
Inventor: BROWNE GEORGE HERBERT STEWART
IPC: F41A9/74
Filed: 1918-03-23
Abstract: 127,929. Browne, G. H. S., and Skerman, O. March 23, 1918. Cartridge magazines for Lewis-type guns.-A detachable cover-plate c, shown in plan in Fig. 5, enables access to be had to the spring d of the catch h, Fig. 1, of the magazine centre-block a.
Patent GB-234885-A (GB)
Title: Improvements in or relating to the treatment of finely divided coal
IPC: C10L5/06
Filed: 1924-02-29
Abstract: 234,885. Wood, L. A., and Minerals Separation, Ltd. Feb. 29, 1924. Flotation processes. - Finely divided coal is agitated with aeration in aqueous suspension with fine pitch under conditions which lead to the formation of a coal-pitch bearing froth whereby mixed coal and pitch are separated from the bulk of the water and gangue. An aqueous pulp of this mixture is then heated with or without a flocculating agent to flocculate the coal particles which may then be briquetted. In a modification, wherein the coal contains particles too coarse to float, all the coal is subjected to the flotation step and the residues which contain the coarse particles and gangue are treated by gravity concentration to separate the coal and this with the flotation concentrate is subjected to flocculation. In an example, fine anthracite passed through a screen of “inch square aperture is mixed with about 5 per cent of crushed pitch and three times its weight of water and subjected in the presence of a frothing-agent to froth flotation. The residual pulp is treated in an upcast classifier, the outflow from which carrying gangue finer than 40 mesh and coal coarser than 20 mesh is delivered to a 20 mesh shaking screen to retain the coal. The mixture of this coal and the froth is agitated with 2 per cent of tar and creosote oil, steam being introduced to raise the temperature to 80-100‹ C. The hot flocculated pulp is drained on a coco-matting belt, passed through squeezing rollers and briquetted. Specifications 155,875, 185,216, 189,220, 189,221, and 193,947 are referred to.
Patent GB-312125-A (GB)
Title: Improvements in swivelling headlamps for motor vehicles
IPC: B60Q1/124
Filed: 1928-02-20
Abstract: 312,125. Atkinson, A. P. J. Feb. 20, 1928. Vehicle lamps, directing.-In means for directing vehicle headlamps one at a time from the steering-gear, each lamp 2 is connected by a flexible shaft 7 with a swivel-piece 8 carrying a fitting 14 pivotally connected by a telescopic link 15 with a slidable sleeve 16 on the track rod 17, an adjustable abutment collar 18 being secured on the rod 17 on the outer side of each sleeve. The lamp bearings are secured to a transverse bar 5 or other fixing part and the swivel-pieces 8 are mounted in brackets 9 secured to the front axle 10. Coiled springs 19 return the lamps to the normal position.
Patent GB-1484980-A (GB)
Title: Composite material comprising reinforced aluminum or aluminum-base alloy
IPC: C22C5/00
Filed: 1975-02-07
Abstract: 1484980 Alumina based fibres SUMITOMO CHEMICAL CO Ltd 7 Feb 1975 [8 Feb 1974] 5315/75 Heading C1A [Also in Divisions C7 and B3] An alumina fibre or an alumina-silica fibre which fibre comprises from 72 to 100% by weight of alumina and 0 to 28% by weight of silica and gives rise to substantially no α alumina reflection when examined by X-ray diffraction is used to reinforce aluminium base alloy (see Division C7). The fibre may be produced by spinning a solution of poly aluminoxane or a mixture thereof with one or more silicon containing compounds (e.g. polyorganosiloxane, polysilicic acid ester, organosilane) in a solvent (e.g. ethyl ether, tetrahydrofuran, dioxane, benzene, toluene, xylene or mixture thereof) and calcining the fibres, by dipping organic fibre into a solution of aluminium salt and a solution of silicon and calcining the resulting impregnated fibre, by mixing alumina sol or aluminium salt with silica sol or ethyl silicate and a solution of polyethylene oxide or polyvinyl alcohol and spinning the resulting viscous solution or by mixing a silicon containing compound with an aqueous solution of an aluminium salt of a carboxylic acid, concentrating and spinning the resulting viscous solution. The fibres may be vacuum impregnated with a melt of the matrix metal at 800‹ C. or coated with matrix metal by vapour deposition, plasma spraying or chemical plating, pressed, rolled and sintered to produce a laminated construction or mixed with powdered matrix metal, pressed and sintered.
Patent GB-548888-A (GB)
Title: Improvements in and relating to fastening devices for wearing apparel
IPC: A41F1/00
Filed: 1941-04-25
Abstract: 548,888. Strip fastenings. HOLT, R. S. April 25, 1941, No. 5400. [Class 44] [Also in Group VII A fastening device for the flies of trousers, for placket-holes or the sides of dresses &c. comprises a flexible toothed strip A secured within a hem F of one part of the garment for engagement with a tight fit in pockets or sheaths formed by cross stitching D in a strip C secured to the other part of the garment, or in a turnedover hem of this part. The strip may be made - of celluloid, or of the same material, suitably processed, as the garment.
Patent GB-345439-A (GB)
Title: Improvements in the storage of gramophone records
IPC: A47B81/06
Filed: 1930-02-19
Abstract: 345,439. Cabinets for gramophone records. ELWELL, E. M., East Riddiford, Winkleigh, Devon. Feb. 19, 1930, No. 5481. [Class 52 (i).] A container for storing gramophone disc records comprises stiff carriers A, Fig. 1, of semicircular or approximately semicircular shape and of such a size that when a record is inserted therein, half of it will project; and each carrier is provided with an eyelet C at or near one end of its straight edge so that a number can be threaded on a rod E running from end to end of a cabinet. The rods E to which the carriers A are pivoted may be carried in casings F<1> which can be swung out of the cabinet as shown in Fig. 6.
Patent GB-726337-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B21/00
Filed: 1953-03-02
Abstract: 726,337. Cylinders. HARPER, W. A., POUNDER, C. C., and REBBECK, Sir F. E. March 2, 1953, No. 5714/53. Class 7 (2). A cylinder working on compression ignition has a single piston or opposed pistons 2, 3 and a constant-pressure-combustion device comprising one or more expansion cylinders 5 in communication with the compression space and each having a piston 6 loaded to the desired combustion pressure by engine-starting air delivered from a reservoir or other supply, as via a reducing valve to a port 8 to act on an enlarged piston portion 7. The space 9 has an escape port 10 which may be valve-controlled, and a port or ports 12 may be provided, the result being that the piston 6 is cushioned pneumatically at each end of its travel. The expansion cylinder or cylinders may be disposed at a right or other angle to the engine cylinder and may be mounted in the engine cylinder cover.
Patent GB-1108302-A (GB)
Title: Preparation of calcium peroxide
IPC: C01B15/023
Filed: 1965-02-25
Abstract: Coarse crystals of calcium peroxide octahydrate are produced by interacting a soluble calcium compound e.g. calcium hydroxide in water and an aqueous solution of hydrogen peroxide containing not more than 2% of hydrogen peroxide, at a temperature not exceeding 30 DEG  C. and under conditions such that the calcium compound is always present in stoichiometric excess.  The hydrogen peroxide can be freed from metallic impurities by contact with a cation exchange resin before use and the interaction carried out in the presence of calcium peroxide octahydrate seed crystals. The calcium peroxide octahydrate so produced may be converted into anhydrous calcium peroxide by tratment with a dilute aqueous solution of hydrogen peroxide which is then converted to hydrogen peroxide, which in turn, is purified by contact with an absorbent and concentrated by distillation.  The process is particular applicable to hydrogen peroxide produced in the process according to Specification 1,070,911.  Reference has been directed by the Comptroller to Specification 871,233.
Patent GB-572592-A (GB)
Title: Improvements in or relating to grilles
IPC: E04C2/42
Filed: 1944-03-29
Abstract: 572,592. Lattice grilles. POULTON, G. March 29, 1944, No. 5835. [Class 20 (iii)] A lattice grille is formed by bars 1, 2 arranged in two layers to cross each other at an angle, the bars 1 of one layer being formed with a T-shaped slot 3 in which engage the heads of studs 6 secured to or engaging the bars 2 of the other layer. In the form shown H-shaped studs 6 engage in T-slots in both bars. The bars are secured to a suitable framework by means of apertured lugs 4.
Patent GB-535727-A (GB)
Title: Improvements in or relating to methods and machines for infolding fabric blanks
IPC: A41H33/00
Filed: 1940-04-01
Abstract: 535,727. Folding fabrics. JACKSON, L. MELLERSH-. (Reece Folding Machine Co.). April 1, 1940, No. 5852. [Class 42 (i)] Folding edges for sewing. In a machine for folding over the edges of pockets, welts, collars, and other portions of suits, shown as for folding over the ends of pocket welts A', A<SP>2</SP>, B', B<SP>2</SP>, after the ends have been folded over a templet 10 by the infolders 12 and while it is being pressed between the infolders 12 and the bed 9, it is subjected to the action of steam to soften the fibres and cause adherence of the layers. The bed 5 or the infolders 12 may be steam heated, and steam allowed to pass to the folds through orifices 13 in the bed &c. under the control of a cam operated valve 18. The templet 10 may be collapsable, and the infolders and templet parts adjustable, and they may be arranged as shown in Fig. 8 for simultaneously folding all the pockets welts &c. of a garment.
Patent GB-1381191-A (GB)
Title: Rotary motion transmitting devices
IPC: F16H35/00
Filed: 1972-02-08
Abstract: 1381191 Change-speed gear PERKINELMER CORP 8 Feb 1972 [10 Feb 1971] 5885/72 Headings F2D and F2K A two-speed, e.g. direct-reduced, gear, for scale expansion in the drive to a pen-recorder in a spectrophotometer, and capable of drive through only a limited angle (e.g. 90 degrees), comprises input and output discs A, C, the axes of which are coincident, as shown, or parallel, and an intermediate disc B, which is pivoted about a third parallel axis of a shaft SS, held stationary in the reduced drive setting, such pivotal movement being effected by an axial driving pin AP, fast on the input disc A, engaging a radial slot BS in the intermediate disc B at a distance from the axis SS which is greater than its distance from the axis of the input disc A, so that the input disc A turns the intermediate disc B through a correspondingly smaller angle; and the disc B drives the output disc C through a second drive-pin BP, fast on the intermediate disc B and engaging a radial slot in the output disc C at a distance from the axis SS which is less than its distance from the axis MS of the output disc C, whereby the disc B turns C through a correspondingly smaller angle. The two pin couplings thus constitute two reduction gears in series, the overall ratio being the product of the two ratios, and is approximately 5 to 1. Arcuate slots BO, CO in the discs B, C permit the limited pivotal movement, and an output shaft MS, carrying the disc C, passes freely through the discs B, A. In the reduced drive setting shown, the third axis shaft SS, fixed to a control disc D, is held stationary by a pin E fixed to the disc D, engaging a stationary part E. For upshift to 1 to 1 drive, the control disc D is shifted axially to free the pin E and engage the end LP of the drivepin BP in a hole LH in the input disc A, locking all the parts together. This lock-up can only occur in one relative position, and in Figs. 2 and 3, not shown, the input and output discs A, C are connected together by a pair of radially spaced axial springs (70, 72) providing an axial and torsion bias to that position, to which it is spring-biased by de-energizing an electromagnet (168) having an armature engaging notches (156) in the end face of the control disc D, by which the electromagnet holds the disc D in the reduced drive setting when energized.
Patent GB-734441-A (GB)
Title: Improvements in or relating to hand trucks and crane skips
Inventor: HARRISON JOHN PERCY
IPC: B62B1/24
Filed: 1953-03-03
Abstract: 734,441. Hand trucks; tipping and removable bodies. HIGGS & HILL, Ltd. Feb. 5, 1954 [March 3, 1953], No. 5948/53. Class 108 (1). [Also in Group XXX] A hand truck has side members 1 and 2 each provided with a wheel and plates 6 and 7 respectively to take trunnions 12 and 13 on a V-shaped tipping body 8 which may be removed from the truck and used as a crane skip (see Group XXX). The members 1 and 2 are joined by a handle 3 and have a catch 15 which in the wheeling position, Fig. 1, engages a crossbar 14 on the body. The body comprises sloping ends 9 and 10, a rectangular stand 11, and trunnions 16, 17 and a bolt 18 for engagement with lifting gear. The body when removed from the truck may be picked up again by wheeling the frame to the body, lifting the handle 3 to engage the plates 6 and 7 with the trunnions and then tilting the body about the rear edge of its base or stand 11 to engage the catch 15 with the bar 14. The truck and body may be tipped to unload, or the body may be released to stand on its base 11 by operating the catch 15.
Patent GB-1008561-A (GB)
Title: Improvements in or relating to the manufacture of synthetic resins
Inventor: HANNERZ ANDERS KARE
IPC: C08G8/24
Filed: 1961-02-20
Abstract: A cold-setting phenolic adhesive is prepared by forming a novolak under acid conditions, alkylolating it with additional aldehyde under neutral or mildly alkaline conditions, and reacting the alkylolated product with a mononuclear m-dihydric phenol present in the proportion of at least 0.1 mol per mol of initial phenol, and at least 0.8 mol per mol of said additional aldehyde. Preferred starting materials for the novolak are phenol; m-cresol; 1,3,5-xylenol; m-chlorophenol; and formaldehyde-, part or all of which may be replaced by autodehyde or furfuraldehyde. The same or a different aldehyde or an aldehyde donor, e.g. a resol with high aldehyde content may be used for alkylolation. Suitable acid catalysts are hydrochloric, oxalic, formic or sulphuric acid, or organic acid salts of divalent electropositive metals.  Suitable dihydrin phenols are resorcinol; 1,3-dihydroxy-5-methyl benzene; 1,3-dihydroxy-5-chlorobenzene. Fillers, e.g. wood flour, starch, nut-shell flours, chalk, slate flour, or silica may be incorporated at any stage. Solvents, e.g. water or a mixture of water with methanol, ethanol, methyl ethyl ketone, or acetone may be added during or after formation of the adhesive.  In Example I, phenol and formalin are reacted in presence of HCl. Caustic soda and more formalin was added to the resulting novolak, and the product of this step was reacted with resorcinol.  Addition of coconut shell flour and paraform gave a cold-setting adhesive.  Examples II, III are similar.
Patent GB-982243-A (GB)
Title: Improvements in or relating to apparatus for grinding and/or polishing sheets of glass
IPC: B24B7/24
Filed: 1961-02-20
Abstract: 982,243. Grinding and polishing glass sheets. COMPAGNIE DE SAINT-GOBAIN. Feb. 20, 1961 [Feb. 19, 1960], No. 6197/61. Heading B3D. A rubbing element used in apparatus for grinding and/or polishing glass sheets is given a translatory movement parallel to the plane containing its operative face such that all points on the element describe similar curved paths by driving means which applies the driving force to a point in or outside the periphery of the element in a plane coincident with, or near to, and parallel with, the plane containing the operative face. As shown in Fig. 1, both the upper and lower rubbing elements 1, 2 are given translatory movement by eccentrics 4, 5 (180 degrees out of phase) which communicate the drive to the elements through arms 11, 12 situated in the planes of the upper and lower surfaces of the sheet. In the arrangement shown in Fig. 3, a driven shaft 32, Fig. 3, transmits the drive to two vertical shafts 32, Fig. 3, one at each side of the glass sheet so that the translatory movements are imparted by eccentrics 24, 25 and arms 18, 19 to upper and lower rectangularshaped elements 16, 17 carrying rubbing pads 14, 15. The operative face of the pad 15 is located in the same plane as the lower surface of the glass sheet by screw jacks 43 which are adjustable by gearing 45, and the pad 14 is forced against the glass sheet by pneumatic or oleo-pneumatic jacks 52. The driving force for the upper rubbing element is applied in a plane which is stated to be near to and parallel with the operation face of the element, the corresponding distance for the lower element being much greater. In the arrangement shown in Figs. 4 and 5 the driving force is applied to the upper element by an elbow 65 through crank-pins 67, 68 and to the lower element by an elbow 66 through crank-pins 69, 70; the crank-pins 69, 70 are arranged between the crank-pins 67, 68 or the pins of the two elbows may alternate with each other.
Patent GB-716711-A (GB)
Title: Stabilisation of degraded hydrocarbon copolymers
Inventor: MCLEAN DONALD HENRY
IPC: C08L27/00
Filed: 1951-03-15
Abstract: Degraded hydrocarbon copolymers of isoolefins are stabilized against further degradation by the addition of 0.1 to 5 per cent. of a divalent metal salt of an alkyl phenol sulphide or a product obtained by sulphurizing a divalent metal alkyl phenate.  The copolymers which are degraded are prepared from mono-isoolefins having less than 7 carbon atoms in the molecule and copolymerizable olefinic compounds such as styrene or multi-olefins such as butadiene, isoprene, dimethallyl, piperylene and myrcene.  Butyl rubbers are preferred which have been degraded to a molecular weight of 12,000-26,000.  The metal component of the stabilizer is preferably barium, calcium, strontium, magnesium or zinc, and the specified stabilizer is sulphurized barium tert. octyl phenate.  The copolymers may be in the form of oil concentrates.  Specifications 586,841 and 716,706 are referred to.
Patent GB-908395-A (GB)
Title: Improvements in wrapping machines
Inventor: BROOKE HAROLD
IPC: B65B57/16
Filed: 1960-02-23
Abstract: 908,395. Endless conveyers. FORGROVE MACHINERY CO. Ltd. Dec. 9, 1960 [Feb. 23, 1960], No. 6356/60. Addition to 867,311. Class 78 (1). [Also in Group XVII] An article feed device as described in the parent Specification is modified in that the stop 12 at the discharge end of the conveyer 11 includes a second photo-electric means PC1 positioned adjacent to the stop 12, which causes the stop to be raised to allow articles to be discharged off the end of the conveyer 11 in the event of a stoppage of the wrapping-machine, to prevent an accumulation of articles, which is sensed by photo-cell PC2. In normal operation, articles infed on conveyer 11 are transferred by flights 15 on an overhead conveyer 14, on to a further conveyer 13 and advanced towards the wrapping machine, as described in the main Specification. On restarting the machine after a stoppage, the operation of photo-electric means PC1 ensures that the gate is lowered into a gap in the infed articles, and also that the machine is not restarted until an article arrives at the stop.. But if the wrapping machine is caused to stop by means of photo-electric cell PC2, due to absence of articles, the stop is not raised.