baber/WOPTO huggingface dataset:
Patent GB-324776-A (GB)
Title: Improvements relating to selecting switches as used in automatic telephone and like selective systems
IPC: H04Q3/00
Filed: 1928-12-22
Abstract: 324,776. Siemens Bros. & Co., Ltd., and Humphries, H. E. Dec. 22, 1928. Automatic exchange systems and selectors.- A two-co-ordinate selector having the usual double-detent controlled by a single release magnet is adapted for hunting in succession over two or more levels of contacts by an arrangement whereby the vertical stepping pawl may act as a holding pawl to prevent vertical release when the release magnet is energized. Construction of selector, Fig. 2. The armature 6 of the vertical magnet has a bifurcated extension 7, one arm 13 of which acts as an abutment to limit the movement of the vertical stepping pawl 8 whilst the other arm 12 passes through an aperture in the pawl. The pawl is pivoted to the extension 7 at 9 and controlled by a spring 10. In order to permit of rotary release only, an additional magnet 16 is provided the armature of which co-operates with a side wing 11 of the pawl 8 in such a way that when both magnet 16 and the vertical magnet are operated, the pawl 8 is tilted and moves into engagement with the tooth next above that with which it would normally engage thus holding the shaft against vertical release but without giving it another vertical step. Alternatively, a cam moving its operative relationship with the wing 11 during the rotary movement of the switch may replace the magnet 16 and its armature. Circuit arrangements, Fig. 4. When the selector reaches the end of a level without finding a free outlet, the test relay T(i) operates over the 11th test contact in series with relay E which locks over rotary off-normal spring w and energizes relay F. Relay E completes a circuit for magnet PM (16, Fig. 2) and the vertical magnet VM in series, and the release of relay A energizes the release magnet ZM, contacts m of which maintain the circuit for magnets PM, VM. When rotary release is complete, relay E releases opening the circuit of magnets PM, VM. and in the interval before the release of relay F an impulse is transmited to the vertical magnet VM so that when relay F does release hunting is resumed over the next level. The circuit arrangements for use with the modification in which a cam is employed instead of the additional magnet PM are generally similar to those shown in Fig. 4.
Patent GB-628277-A (GB)
Title: Improvements in or relating to electric fittings comprising a lampholder combined with a suspension tube
IPC: H01R33/22
Filed: 1946-12-31
Abstract: 628,277. Lamp-holders. PHILIPS LAMPS, Ltd. Dec. 31, 1946, No. 38135. Convention date, Oct. 8, 1943. [Class 38 (i)] In an electric fitting comprising a lamp-holder consisting of a terminal-carrying part 8 and a hood 7, and a suspension tube 11 fixed to the hood, the end of the tube adjacent the hood has a hollow body 1 of insulating material located therein and divided into two or more channels by one or more insulating partitions 3 fitting in longitudinal grooves 2 in the body, each of said channels carrying one of the supply wires 9, 10. Short-circuits due tc destruction of the insulation of the wires by the heat from the lamp are thus avoided. The ends 4, 5 of the partition or partitions protrude beyond the body 1, the end or ends 4 forming barbs and the end or ends 5 dividing the interior of the hood. into two or more parts.
Patent GB-912265-A (GB)
Title: Foundry mold forming apparatus
IPC: B22C15/30
Filed: 1959-05-15
Abstract: 912,265. Moulding-machines. HERMAN PNEUMATIC MACHINE CO. May 15, 1959 [Oct. 16, 1958], No. 38140/60. Divided out of 912,262. Drawings to Specification. Class 83(1). Foundry mould forming apparatus comprises a compacting station having means for compacting finely divided mould forming material in a flask against a pattern, two stripping stations respectively at opposite sides of the compacting station, each of the stripping stations having means for stripping a flask containing a compacted mould from the pattern against which the mould has formed, and reciprocable carrying means carrying two patterns and flasks movable in one direction to simultaneously shift the first pattern with the flask thereon from one stripping station to the compacting station and a second pattern with a flask thereon from the compacting station to the other stripping station and movable in the opposite direction to simultaneously shift the second pattern with a flask thereon from the second mentioned stripping station to the compacting station and the first pattern with the flask thereon from the compacting station to the first mentioned stripping station. The apparatus is as described in Specification 912,262. Specifications 845,172, 845,346 and 912,261 also are referred to.
Patent GB-1502539-A (GB)
Title: Methods of making plywood
IPC: C09J5/00
Filed: 1976-09-15
Abstract: 1502539 Forms of wood MARUHI PLYWOOD KK 15 Sept 1976 [30 July 1976] 38202/76 Heading B5L A method of temporarily bonding veneers in the making of plywood comprises coating the faces of a core veneer with a veneer bonding agent, spreading a dry powder of a material which becomes tacky as it absorbs water over the coated faces of the core veneer, assembling the coated core veneer with other veneers, and subjecting the assembly to cold pressing. The veneer bonding agent may be a thermosetting resin, such as urea resin, melamine resin, ureamelamine condensation resin or phenol resin, mixed with a hardening agent or a bridging agent, and a filler, extending agent and water may also be added. The bonding agent is applied to both faces of the core veneer which has 30% to 50% water content, the faces, immediately after the application of the bonding agent, having spread thereon the dry powder, such as wheat protein powder, wheat flour, konjak flour, carboxymethylcellulose, hydroxyethylcellulose, sodium alfinate, polyvinyl alcohol, gum arabic, quazule gum, dextrin, α-starch, etherificated starch or estrificated starch either individually or as a mixture of two or more powders. The core is assembled between a pair of surface veneers having 20% water content and subjected to a cold pressing, the water acting on the dry powder so that it becomes tacky and temporarily bonds the veneers together prior to permanent bonding which is effected by hot pressing.
Patent GB-1438200-A (GB)
IPC: G01N3/34
Filed: 1974-09-02
Abstract: 1438200 Fatigue testing HOFMANN GmbH GEBR [trading as HOFMANN KG MASCHINENFABRIK GEBR] 2 Sept 1974 [17 Dec 1973] 38264/74 Heading G1S An apparatus for fatigue testing of a wheel 1 comprises a surface 2 to which the wheel is clamped, a rod 5 secured at its upper end to the wheel, and a head 8 rotatably mounted on the rod 5 and carrying weights 14, 15 whereby rotation of the head 8 by motor 16 produces bending forces on the wheel. Head 8 comprises parts 9, 10 mounted by bearings 12, 13 on rod 5 and interconnected by a resilient means 11. The position of the weights may be adjusted radially and the angle between the weights may also be adjusted. The bending moment applied by the rod 5 is measured by four strain gauges 19 arranged at 90 degrees spacing, and the deflection of the rod 5 is measured by a pair of transducers 21 at 90 degrees spacing. The bending moment may be maintained constant by means of a control unit connected to strain gauges 19 and transducers 21. A link 22 is coupled to part 10 when it is desired to calibrate the apparatus using device 20.
Patent GB-1029010-A (GB)
Title: Improvements in or relating to a method and devices for causing levitation of a magnet
IPC: G01C19/24
Filed: 1964-09-21
Abstract: 1,029,010. Superconductive devices; electromagnets. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 21, 1964 [Sept. 24, 1963], No. 38386/64. Headings H1K and H1P. [Also in Division F2] A magnet 1 is caused to float in a stable position and direction above a superconductive plate 2 by forming the plate with two magnetic apertures 3, 4 spaced apart by a distance 7 approximately equal to, but preferably 10% less than, the distance 6 between the magnet poles. The magnet or electromagnet can rotate freely about its longitudinal axis and thereby form a magnetic bearing. The plate 2 can be cup-shaped or comprise a mosaic of small plates of superconductive material on a substrate. The plate is made of a niobium-tin alloy.
Patent GB-351423-A (GB)
Title: Improvements in distributing valves with internal rotor, in particular those for piston engines
IPC: F01L7/02
Filed: 1929-12-16
Abstract: 351,423. Fluid-pressure engines. VAUDET, P. L., St-Sernin-du-Plain, Saoneet-Loire, and GUITAUT, F. A., 200, Rue Croix-Nivert, Paris, both in France. Dec. 16, 1929, No. 38461. Convention date, April 12. Void [Published under Sect. 91 of the Acts]. [Class 122 (ii).] The distribution of fluid pressure in engines is controlled by pairs of frusta-conical coaxial valves which rotate together but are relatively movable axially, and are pressed on to seats by springs. The valve chest b has conical seats c<1>, c<2> with the larger ends adjacent. Hollow conical valves d<1>, d2 rotate together with the driving-shaft f, but are longitudinally movable thereon. The valves have rectangularly-bored stems g<1>, g<2> engaged by the shaft. A spring e is arranged between flanges j<1>, j<2> on the stems. In a modification, the valve d<1> is driven directly through a sliding coupling from the valve-gear shaft, and the stems g<1>, g<2> are connected together by a sliding coupling comprising toothed cylinders having a spring between them. The pair of valves may control one or two cylinders, and separate pairs may be used for the admission and exhaust.
Patent GB-338036-A (GB)
Title: Improvements in and relating to the moistening of yarn and other textile materials in conical or pyramidal baskets and like containers
IPC: D06B1/00
Filed: 1929-12-16
Abstract: 338,036. Pferdmenges, H. Dec. 16, 1929. Actuating by Liquid pressure; diaphragm pumps.-Apparatus for moistening yarn &c. in conical or pyramidal containers supplies a quantity of moistening liquid in proportion to the cross-sectional area of the layer being supplied. Water from a pipe 17 according to the position of a handle 19 and cock 16 will fill, say, the space 2 of the water-measuring device and also the space between the perforated plate 4 and the resilient diaphragm 3, the volume of this latter space depending on the position of the perforated piston 5. With the entry of a new layer of yarn, the handle 19 is moved over and water now enters the space 1 and forces the diaphragm 3 towards the plate 4, expelling a volume of water through the pipe 18 to the yarn container, and filling the space between the perforated piston 5 and the diaphragm 3. The handle in passing over moves a pawl and ratchet mechanism rotating a shaft 23, which by chain and spur wheel gear 32, 33, 12 moves the piston 5 to enlarge the water-measuring space. The next larger layer of yarn is thus supplied with more liquid. Instead of the connected piston 5, a floating piston may be used, and a system of cocks may replace the cock 16. The ratchet wheel may be provided with teeth of varying pitch, and the mechanism 32, 33, 12 may be replaced by spirally-grooved cones &c. so that the feeding of the piston 5 may comply with any container of varying cross-section. An index disc may be provided connected with a spindle 6 to register the amount of water being supplied. A hand wheel 12 enables the piston 5 to be returned to its initial position when the pawl is lifted from engagement with its ratchet.
Patent GB-938830-A (GB)
Title: Improvements in or relating to exhaust silencers
IPC: F01N13/18
Filed: 1961-10-30
Abstract: 938,830. Exhaust silencers. J P. MARX. Oct. 30, 1961 [May 24, 1961], No. 38780/61. Class 7(2). Exhaust gases from an inlet 31 into an inner chamber 28 formed by a pair of angularly adjustable tubular members 18, 19, with registering slots 22 through which the gases pass into an outer chamber 29 with an outlet to atmosphere. The outer casing 11 and members 18, 19, are held between flanged end members 12, 13, by bolts 26, 27, and the members 18, 19, are adjusted relative to one another to adjust the sizes of the ports 22 and then clamped by set screw 23. The outlet port 36 is controlled by an adjustable sleeve 37 having a port 38 or a set of orifices 39 for registry with the port 36. The exhaust outlet 36 may be positioned in any direction by loosening the bolts 26, 27, and rotating the casing 11. The inlet 31 is rectangular and flanged outwardly to receive a gasket 33 and junction piece 34 attached directly to the cylinder exhaust port.
Patent GB-1077684-A (GB)
Title: Desalination by solvent extraction
IPC: C02F1/26
Filed: 1964-09-23
Abstract: In a countercurrent process for the desalination of water carried out under a temperature gradient with subsequent recovery of water from a heated extract phase the solvent used is a C4-C7 amine <FORM:1077684/C1/1> where R1 is hydrogen or alkyl; R2 and R3 are hydrogen, alkyl or alkenyl radicals having 1 to 4 carbon atoms.
Patent GB-1311629-A (GB)
Title: Spindle control means for automatic yarn piecing apparatus
Inventor: MERCK J
IPC: D01H15/013
Filed: 1971-08-18
Abstract: 1311629 Spindle drive during piecing MAREMONT CORP 18 Aug 1971 [10 Sept 1970] 38840/71 Heading DID In an apparatus for servicing a spinning frame a rotatable disc 42 is provided to engage and control the rotation of the spindle 14'. A control actuator such as a cam 60" is connected loosely, e.g. by a stud 72 loosely engaging a yolk 70', to the mounting of the disc 42. The disc mounting arm 50 is pivoted at 84 to a member further pivoted about a driving roller 46. In the rest position, Fig. 2, a spring unit 56 holds the disc out of engagement with roller 46. On actuation by cam 60" movement of arm 50 first causes engagement of disc 42 with roller 46, Fig. 3 (not shown) then further movement brings disc 42 into engagement with the spindle 14' which is driven in reverse (its normal drive slipping). Still further movement leaves disc 42 engaged with spindle 14' but disengaged from roller 46, Fig. 5 (not shown). This allows spindle 14' to rotate disc 42 a limited amount. The amount of movement being limited by the bearing assembly of the disc illustrated in Fig. 7 (not shown). The cycle described is for a certain piecing operation, other piecing operations may be catered for by using a different cam shape. The cam 60" may be replaced by an hydraulic actuator, Fig. 5d (not shown) and the yoke and stud linkage may be replaced by loosely meshing gear segments, Fig. 5c (not shown) or a stud and slot, Fig. 5b (not shown). The whole apparatus is mounted in a travelling servicing unit, Fig. 1 (not shown).
Patent GB-828756-A (GB)
Title: Non metallic ferromagnetic materials having a rectangular hysteresis cycle
IPC: H01F1/34
Filed: 1957-12-13
Abstract: 828,756. Magnetic compositions. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES. Dec. 13, 1957 [Dec. 14, 1956; Sept. 18, 1957], No. 38845/57. Drawings to Specification. Class 38 (2). A ferromagnetic ferrite with a rectangular hysteresis loop is made by compressing and heating a mixture having the composition xFe 2 O 3 , yT 2 O 3 , uNiO, vCuO, sZnO, tCdO, where T is Al or Cr, x+y is in the range 47-50, y is in the range 0-2, v is in the range 3-15, u+v is in the range 25-53 and s+t is in the range 0-25, the heat treatment producing mechanical stresses in the material. In manufacture, a mixture of oxides is ground in a ball mill for 12-48 hours in distilled water, compressed at 0.5-15 tons/sq.cm., sintered at 900 to 1300 C. in oxygen and cooled for 15 hours. The magnetic properties of a large number of different compositions within the above formulµ are tabulated and graphically illustrated, the effects of varying the proportions of different ingredients being shown. To improve the rectangularity of the hysteresis loop a core of the material may be subjected to external mechanical stress. This may be applied by hydraulic pressure, by a clamped rubber band, by a cured enamel coating or by polymerizing a potting resin. The latter may be a non-saturated polyester resin with monostyrene to which is added benzoyl peroxide as catalyst and cobalt naphthenate or oxtoate in white spirit or styrolene as accelerator. A ring-shaped core may be completely coated or surrounded by a band of the resin, or a perforated plate or a set of cores may be coated. The properties of stressed and unstressed cores of 48Fe 2 O 3 , 47NiO, 5CuO are tabulated.
Patent GB-886130-A (GB)
Title: Methacrylic resin plates and a process for their production
IPC: B32B27/00
Filed: 1959-11-17
Abstract: A plate comprising two layers of different colours is produced by pouring methyl methacrylate or a syrup-like mixture of methyl methacrylate monomer and polymer, having a desired colour, into a mould having the bottom consisting of a plate of polymethyl methacrylate having a different colour, and effecting polymerization of the poured material on the underlying plate in an oven provided with an air circulation adjusted to a constant temperature of about 50 DEG  C. for 10 to 24 hours.ALSO:A plate comprising two layers of different colours is produced by pouring methyl methacrylate, or a syrup-like mixture of methyl methacrylate monomer and polymer, having a desired colour, into a mould having the bottom consisting of a plate of polymethyl methacrylate having a different colour, and effecting polymerization of the poured material on the underlying plate in an oven provided with an air circulation adjusted to a constant temperature of about 50 DEG C. for 10 to 24 hours.
Patent GB-1077230-A (GB)
Title: Production of globular polyvinyl chloride
IPC: C08L27/06
Filed: 1965-09-13
Abstract: A polymer in the form of a globular agglomerate is obtained by polymerizing a monomer containing at least 80% by weight of vinyl chloride in an aqueous medium with a monomer soluble catalyst in the presence of fibrous asbestos; the product agglomerate has a quasi-spherical shape, a mean diameter of 0.002-0.5 inch, a packing density of 0.4-0.8 g./cm.3 and a total amount of volatiles of less than 0.2 gram per gram of dry polymer.  Examples are given of the production of vinyl chloride homopolymers and copolymers with vinyl acetate and vinylidene chloride; other comonomers mentioned are methyl and ethyl esters of acrylic, methacrylic, maleic and fumaric acids, (meth)acrylonitrile and maleic anhydride.  The preferred asbestos is chrysotile and may be subjected to certain pretreatments. Also present may be protective colloids, surface active agents and materials which are to appear in the polymer product-lead, cadmium or barium stabilizers, carbon black, calcium carbonate, titanium dioxide, calcium stearate, waxes, dioctyl phthalate and processing aids such as methylmethacrylate-ethylacrylate, styrene-acrylonitrile, ABS or ethylene-vinyl acetate copolymers, chlorinated polyethylene or calcium carbonate coated with stearic acid.  Peroxide and azo catalysts are specified.  The polymer product is generally washed on a screen to remove the asbestos but this may be retained if required in the composition. The production of a gramophone record is exemplified.
Patent GB-1424242-A (GB)
Title: Document reproduction apparatus with original document feeder
IPC: G03G15/04
Filed: 1973-08-17
Abstract: 1424242 Projection printing apparatus having original document feeder XEROX CORP 17 Aug 1973 [29 Aug 1972] 39086/73 Heading G2A An apparatus comprises means for providing a flowing light image of a stationary original supported on a stationary viewing platen (20) in a first mode of operation and for providing a flowing light image of a moving original of a size greater than the physical dimensions of the platen (20) in a second mode of operation and means (49) for selecting between these modes, the flowing light image of the stationary original being provided by optical means for scanning the stationary original, see Fig. 2, the flowing light image of the moving original being provided by means for fixing the optical means at a given position and means for feeding the original over the platen past the fixed optical means, the feeding means (40) comprising a co-operating feeding member (142) positioned adjacent the platen (20) and a document feeder including a first feeding member (132) arranged to engage the co-operating feeding member to form a nip therebetween through which the originals are fed when the feeder is in an operative position over the platen and a second feeding member (135) arranged to engage the platen to form a nip therebetween through which the originals are fed when the feeder is in the operative position and means (49) to move the document feeder from a stored position off the platen to the operative position, whereby documents advanced over the platen by the feeder are within the viewing domain of the optical means.  The scanning system may comprise a stationary lens system (21) positioned below the left hand margin of the platen (20) see Fig. 1, and a pair of co-operating movable scanning mirror (22, 23) carried on carriages (24, 25) respectively, which are slidably supported between a pair of rails (27, 28) and connected to optical drive-shaft (29) via a cable and drum arrangement (30). Manually moving feedroller support assembly (42) to the operative position physically closes the contacts of the large document mode switch causing actuation of the main machine drive motor and placing the machine in a single copy mode of operation. A paper feeding clutch (58) (not shown) inhibits the action of the paper feeder while the machine is being converted to the large document handling mode. Multiple copies of a single original can be reproduced.
Patent GB-1156125-A (GB)
Title: Novel Dyestuffs
Inventor: SASA TSUTOMU
IPC: C09B1/515
Filed: 1967-08-24
Abstract: 1,156,125. Anthraquinone dyes. MITSUI KAGAKU KOGYO K.K. 24 Aug., 1967, No. 39110/67. Heading C4P. The invention comprises compounds of the formula where R and R<SP>1</SP> are H or alkyl of 1-4 carbon atoms and R<SP>11</SP> is alkyl, cyclohexyl or aryl. The compounds are prepard by heating together compounds of the formulae and R<SP>11</SP>NCO in an organic solvent. A catalyst, e.g. 1,4-diazabicyclo [2,2,2] octane or stannous octate may be present.
Patent GB-911310-A (GB)
Title: Improvements in or relating to electric fans
Inventor: PAGE BERTIE HAROLD
IPC: H02K7/14
Filed: 1959-11-19
Abstract: 911,310. Electric motors. GENERAL ELECTRIC CO. Ltd. Nov. 15, 1960 [Nov. 19, 1959], No. 39290/59. Class 35. An electrical ceiling fan comprises an internal stator 2 rigidly mounted on shaft 3 and an external rotor 1. The rotor laminae 9 include a thicker lamination 10 of greater external diameter forming an outwardly projecting flange 11 to which end shields 14, 15 are secured and having three equally spaced projections 12 for mounting the fan blades 30. The flange joint and the bearings may have plastic covers 21, 27, 28 to exclude dirt. The squirrel-cage rotor windings 29 are diecast by forcing aluminium through slots in laminae 9 to produce an integral cast rotor. A modification incorporates two choke coils for speed regulation mounted on stator 2 and a pull cord switch mounted on shaft 3 which is hollow for the passage of connecting leads.