baber/WOPTO huggingface dataset:
Patent GB-144491-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B19/14
Filed: 1919-07-05
Abstract: 144,491. Deventer, H. R. van, (Erickson, A.). July 5, 1919. Regulating.-The apparatus is of the type in which liquid fuel is supplied to the small chamber 12 communicating with the cylinder through small holes 17, by which air enters the chamber during the compression stroke and supports the combustion of some of the fuel, thus generating pressure which expels the remainder into the cylinder. The chamber in this case is formed in the head of the air-admission valve 10, the cover 13 is stamped from sheet metal in order to ensure all the covers in a multicylinder engine being of uniform thickness, and the cover is secured to the valve 10 by a screw cap 14. The fuel enters the chamber 12 through channels 25 in a valve 21 from another chamber 26, to which it is admitted by a valve 29. The valve 21 is operated during the suction stroke by a forked lever 38 engaging its head 22, on which there is an adjustable screw collar 22<a>. This collar impinges in turn on the head 19 of the air valve 10 and opens it. The lever 38 carries an adjustable stud 41, which on its back stroke engages the lever 42 and causes it to lift the valve 29 by engaging its head 36. The lever 42 is mounted on an adjustable fulcrum 43, and the mechanism permits both the time and the extent of lift of the valve 29 to be varied.
Patent GB-1134066-A (GB)
Title: Feed device for the reciprocating slide movement in drawing machines
IPC: B21C1/30
Filed: 1966-04-18
Abstract: 1,134,066. Drawing. SCHUMAG SCHUMACHER METALLWERKE G.m.b.H. 18 April, 1966 [17 April, 1965], No. 16967/66. Heading B3P. A mechanism for reciprocating the drawing carriage of a drawing machine comprises at least one rotatable cam element having two cam surfaces, the element passing between two cam follower rollers mounted in the drawing carriage in a common plane, the one behind the other in the direction of the reciprocating movement of the drawing carriage, each of the cam surfaces co-operating with one of the cam follower rollers whereby rotation of the cam element causes reciprocation of the drawing carriage. One of the rollers, 2, is supported by a bearing 4 which is rigidly mounted in the slide 1, the other of the rollers, 3, is supported by a bearing which is mounted in a lever 5. The lever is pivoted to the slide at 6 and is acted on by an adjustable compression spring 7. The two cam profiles are formed on opposite sides of a peripheral rib 11, 11<SP>1</SP> on a cam cylinder. The axial thickness of the rib varies so that as the cam angle increases the rib thickness diminishes so that the distance between the rollers is substantially constant. The working stroke of the carriage is effected by the cam profile engaged by the roller 2 and the return stroke by the cam profile engaged by the roller 3.
Patent GB-1305641-A (GB)
IPC: C04B32/00
Filed: 1970-04-09
Abstract: 1305641 Artificial magnetic rock TATABANYAI SZENBANYAK 9 April 1970 [17 April 1969] 16988/70 Headings C1J and C1K An artificial magmatic rock is composed of 40-50% by weight of SiO 2 , 20-40% by weight of trivalent metal oxide, at least 55% by weight of said oxide being Al 2 O 3  the remainder being predominantly Fe 2 O 3 , and 10-35% by weight of di- and monovalent oxides, the rock being predominantly composed of crystal associations having a size of 0À1-10 mm., said crystals having a crystallization temperature range of 1300 to 1150‹ C. and said crystal associations consisting essentially of 55 to 70% by weight of plagioclase composed of albite 10-30 - anortite 90-70' 4-20% by weight of pyroxene, especially of orthorhombic pyroxene composed of enstatite bronzite and monoclinic pyroxene containing Ca, Mg and Fe, and 5 to 25% by weight of oxide having substantially a spinel structure, the balance being 0-10% by weight of other trivalent metal oxide crystal associations, predominantly comprising Fe 2 O 3  modifications. The rook is made by melting raw materials allowing the melt to stand at 1500- 1400‹ C., casting at 1400-1300‹ C. after the removal of gases, crystallizing the cast melt at 1300-1150‹ C. and thereafter cooling at 40- 100‹ C. per hour. Suitable raw materials are slag from the burning of stone coal (coustobiolite), fly ash and waste colliery stock piles together with additives to decrease the melting point, viscosity and crystallization temperature and to adjust the composition. Additives for colouring or ornamenting the store can be included in the melt in the molten or solid state. Numerous suitable additives are listed, in the examples the additives used are dolomite, limestone, cryolite fluorite, sodium carbonate, sodium chloride, red mud from the Bayer process, ureholite, rhyolite-tuff, siderite, diobase and nickel oxide. The additives can be added to the melt or solid raw material, or mixed with coal to be burnt.
Patent GB-198914-A (GB)
Title: Improvements relating to the treatment of india rubber or caoutchouc
IPC: B29C37/00
Filed: 1922-06-20
Abstract: 198,914. Marter, C. June 20, 1922. Compound fabrics; proofing permeable materials.-Sheets of india-rubber, treated with a tanning agent to produce a material similar to leather, are covered on one or both sides with a layer of canvas, flannel &c. which may be attached by a solution of the tanned rubber in naphtha. Wire, textile &c. reinforcements may also be inserted. The material may be rendered fireproof by soaking it in a solution of protochloride of tin, and made tougher and porous by treatment with an alum solution.
Patent GB-1344751-A (GB)
Title: Tearable package
IPC: B65D75/58
Filed: 1972-04-13
Abstract: 1344751 Tear-strip packages NESTLE SA 13 April 1972 [14 April 1971] 17042/72 Heading B8C A package 1 comprises a shrinkable sheet of polyvinyl chloride or polyethylene provided with at least one lateral seam 2 and having means in the form of two lines of weakness, e.g. perforations 3 which are close to each other, the lines being provided one on each side of each seam and the seam [forming a tear-strip. As shown, a pull-tab 4 is provided.
Patent GB-1510792-A (GB)
Title: Looms
IPC: D03D47/27
Filed: 1975-04-24
Abstract: 1510792 Tape drives JAMES MACKIE & SONS Ltd 24 April 1975 [1 May 1974] 17092/75 Divided out of 1510791 Heading D1E A weft insertion is made of plastics material and is wrapped around the tape wheel to be reciprocal within the confines of the loom.
Patent GB-1382722-A (GB)
Title: Fastener carrier strip
IPC: B25B23/04
Filed: 1972-04-13
Abstract: 1382722 Nut runners GKN SCREWS & FASTENERS Ltd 19 June 1973 [21 March 1972 23 March 1972 13 April 1972] 13037/72 13552/72 and 17110/72 Heading B3N [Also in Division B8] Apparatus for feeding a fastener carrier strip (Division B8) to a fastener driving tool 110 comprises a strip guide 116 and a feed member 124 mounted beyond the driving station and having at least one finger 128 engageable in a hole of the strip from which a fastener, for example a screw, has been removed, and means to move the member 124 to feed the strip stepwise. The driving bit 113 of the tool drives a fastener out of the strip and positions it temporarily between pivoted spring-pressed jaws 120. When the tool 110 is retracted away from the feed apparatus to remove the bit from the strip a spring 138 is compressed and rotates a pawl carrying an arm 126 by an amount limited by an adjustable stop 129. The pawl rotates a ratchet wheel on a shaft 123 keyed to the feed member 124. The feed member can be disconnected from the shaft and manually rotated by pulling and rotating a knob (200). Rubber guard strips 119 connected to the guide 116 shield the fastener shanks.
Patent GB-616371-A (GB)
Title: Improvements in or relating to dynamo electrical machines
IPC: H02K19/20
Filed: 1946-06-05
Abstract: 616,371. Inductor alternators. ALLEN, F. J. June 5, 1946, No. 17132. [Class 35] An inductor alternator comprises an axially magnetized rotor with axially spaced poles formed by cutting away the cylindrical surface of the rotor and co-operating with a wound stator core composed of U-shaped stampings disposed longitudinally of the rotor and forming a substantially closed periphery of the rotor tunnel. As shown, the rotor has surfaces 13, 14 cut back to leave pole faces 15, 16 respectively which co-operate with the ends 19, 20 of the stator laminee. The stator core carries windings 21 whilst a coil 101 magnetizes the rotor, coils 22 being provided to prevent leakage flux entering the bearings. Instead of the laminae being in a few pockets, they may be distributed in small groups equally round the periphery of the stator bore. In this case the windings may also be distributed. In a further modification the ends of the laminae are spaced to accommodate the coils instead of having them mounted on the body of the core. The stator and rotor may be built in sections, the rotor may be hollow, and a multiplicity of arches may be used.
Patent GB-404542-A (GB)
Title: Improvements in or relating to rail-less bus trolley pole structures
IPC: B60L5/16
Filed: 1933-06-15
Abstract: 404,542. Trolly poles for electric vehicles. BRECKNELL, WILLIS, & CO., Ltd., and WILLIS, A. M., 59, Victoria Street, Bristol. June 15, 1933, No. 17133. [Class 104 (iii).] Means for arresting the upward swing of a trolly pole after de-wiring comprises a compressible strut 7 arranged above and substantially parallel to the pole, one end being pivoted to the rotary base 5, while the other end passes freely through a lug 10 on the pole and is surrounded by a spring 11 abutting at one end on a washer 12 and at the other on a sleeve 15 screw-threaded on the rod 7 for the purpose of adjusting the compression of the spring. Specifications 404,466, 404,467, and 404,468 are referred to.
Patent GB-1041887-A (GB)
Title: Duplicating process
Inventor: MAN DOUGLAS ALEXANDER NEW
IPC: B41M5/26
Filed: 1964-04-24
Abstract: 1,041,887. Printing processes. COLUMBIA RIBBON & CARBON MANUFACTURING CO. Inc. April 24, 1964, No. 17181/64. Heading B6C. [Also in Division D2] A method of chemical or hectographic printing on a copy sheet 13, provided with a superficial film 12 including a heat-meltable solid which in its melted state is a solvent for the solid material of the images 11 on a master sheet 10 carried by a drum 21, comprises contacting said images with the coating in its melted state so that a portion of the soluble material is dissolved to produce a copy of the images on the sheet 13. The coating may be heated prior to reaching the nip between the drum 21 and a roller 22 by a hot plate 15 or infra-red lamps 16 or may be heated at the nip by an electric coil 23 within the roller 22. In the embodiment of Fig. 4 (not shown), spaced images on a web are copied on to a web which is fed together with the image-supporting web between a pair of rollers. The copy sheet 13 may be paper coated with a solid alcohol such as cetyl, myristyl or stearyl, a fatty acid such as stearic, palmitic or lauric, an ester of a glycol or organic acid, or a glycol ether such as polythene glycol ether or polypropylene glycol ether. The melting point of the coating 12 is preferably between 90‹ and 150‹ F. and a wax mixed with a solvent for the image dye may be used as the coating material. The coating may include a radiationabsorbing pigment. In place of hectographic dyes, the images may be formed of gallic or tannic acid, a thiocyanate derivative such as trimethyl thiocyanate, or a sodium, potassium or ammonium salt of ferrocyanide or ferricyanide, while the coating contains a chemical such as an iron, copper, manganese, lead, silver, mercury, or nickel &c. salt which reacts therewith to form a sharp coloured image. The coating may include a humectant such as ethylene glycol or a carbowax. Impression members.-In the embodiment of Fig. 3, the impression member is formed by a felt pad 17 biased towards the roller 21 by a spring.
Patent GB-775334-A (GB)
Title: Improvements in the reaction of gaseous hydrocarbons with oxygen
IPC: C01B3/30
Filed: 1955-06-15
Abstract: <PICT:0775334/III/1> In the production of synthesis gas by the catalytic interaction of a hydrocarbon and oxygen optionally together with steam, the reactant gases are passed, after mixing, through an enlarged empty space, so as to reduce their velocity, and then successively through a layer of granular refracory material, free from catalyst, and a layer of catalytic material.  The velocity of the gases is preferably reduced to less than a half, and more preferably to less than a fifth, of its former value by the enlarged space.  A rapid increase in temperature in the layer of refractory material free from catalyst should be prevented.  This may be done by ensuring that the entering gases are free from iron, or by using a very thin layer.  The temperature rise should be less than 30 DEG C. per cm.  A thickness of 6-20 cm. of refractory material having a grain size of 10-20 mm. may be used.  The amount of oxygen employed corresponds approximately to the stoichiometric requirement, but up to a 10 per cent excess may be employed.  Air may be used instead of oxygen.  Atmospheric or superatmospheric pressure, e.g. 1-30 atmospheres excess pressure, may be employed.  As shown coke oven gas, having a methane content of 30 per cent, and steam, from pipes 1 and 5 respectively, pass through preheater 3 to mixer 7 where they are mixed with oxygen and steam from pipes 2 and 6 respectively and preheater 4.  The gaseous mixture at a temperature of 600 DEG C. passes through conical expansion chamber 11, layer 9 of granular magnesite 15 cm. thick and layer 10 of magnesite impregnated with nickel oxide, whereby a reaction temperature of about 950 DEG C. is produced.  The velocity of the gaseous mixture is reduced to about one tenth of its former value on passage through the conical chamber.
Patent GB-722364-A (GB)
Title: Steroids
IPC: C07J75/00
Filed: 1952-07-08
Abstract: The invention comprises 3-b , 11(a )-dihydroxyallopregnane-20-one and carboxylic acid diesters thereof and their preparation by reducing the 3-keto group of 11(a )-hydroxyallopregnane-3,20-dione with sodium borohydride followed by acylation if desired.  The reductive step may be effected in an inert solvent.  An example discloses the use of acetic anhydride as acylating agent but others are mentioned.  11(a ) - Hydroxypregnane - 3,20 - dione and 11(a ) - hydroxyallopregnane - 3,20 - diene are obtained by hydrogenating 11(a )-hydroxyprogesterone in the presence of palladium-charcoal and separating the normal and allopregnanes by chromatography.  11(a )-Hydroxyprogesterone is obtained by the oxygenation of progesterone by means of a culture of the fungus Rhizopus nigricans.
Patent GB-171130-A (GB)
Title: Improvements in or relating to carriage lamps and the like
IPC: F21S13/00
Filed: 1920-06-25
Abstract: 171,130. Martin, A. A. June 25, 1920. Carriage lamps.-In a carriage lamp, the top plate 1, bottom plate 2, and side plate 3 are connected in the usual manner, and the plates 1, 2 at their side edges receiving the glass frames 4 are bent to form a cylindrical socket 5 in which is slidably engaged a cylindrical bead 6 which expands and holds the frames firmly in position. The frames 4 may be connected to one another and the side plate 3 by lips 7, 7<a>, 7<b>, Fig. 10, the edges 7<c>, 7<d> of the lips 7, 7b respectively being curled to engage each other and if desired notched to interleave. The plates 15, 17, 20 are removably fixed in position, the plate 20 being secured by a removable cone 22 sliding over the candle tube 23 and engaging lugs thereon by means of a bayonet-joint.
Patent GB-1411534-A (GB)
Title: Flame-resistant high molecular weight linear polyesters
IPC: C08G63/00
Filed: 1974-04-19
Abstract: 1411534 Flame-resistant polyesters BAYER AG 19 April 1974 [19 April 1973] 17256/74 Heading C3R Flame-resistant polyesters are derived from a dicarboxylic acid, a diol and a compound of the formula in which n is 1 to 10 and m is 2 to 10. Preferably 0.1 to 15% by weight of the fluorine compound is used. The examples describe preparing polyesters from dimethyl terephthalate or terephthalic acid, ethylene glycol and or
Patent GB-641137-A (GB)
Title: Dive angle indicator for aircraft
IPC: G01C19/44
Filed: 1948-06-28
Abstract: 641,137. Aeronautical appliances. SQUARE D CO. June 28, 1948, No. 17298. Convention date, July 23, 1947. [Class 4] [Also in Groups XX and XXXVIII] In an aircraft dive-angle indicator the angle of attack and the fore-and-aft attitude are algebraically added in a Selsyn differential or a gyro. In the former arrangement a vertical gyro 2 controls the single-phase, energized rotor of a Selsyn transmitter 3 to feed an " attitude " signal to a " differential " Selsyn 7 having its rotor controlled by an angle-of-attack vane 9. The resultant signal is fed to a Selsyn indicator 12 which is positioned by a normal servo-driven follow-up system, Fig. 1, to indicate the dive angle. Alternatively, the angle of attack as obtained from a wind-vane 24 is transmitted by a normal Selsyn-servo remote-control, follow-up system to the zero adjuster 23 of a gyro horizon 21, whereby the position of the horizon 22 indicates the dive angle.
Patent GB-544200-A (GB)
Title: Improvements in filtering apparatus
IPC: B01D35/16
Filed: 1940-12-05
Abstract: 544,200. Filters. STANDARD OIL DEVELOPMENT CO. Dec. 5, 1940, No. 17308. Convention date, Nov. 30, 1939. [Class 46] A sectionalized inward flow rotary drum filter 12 is mounted in a casing 1, Figs. 1 and 2, to the inner wall of which wash-water spray pipes 20 and a scraper 24 for removing the cake are attached and which can be adjusted rotationally. With this arrangement the. period of washing can be increased relatively to that of filtration by supplying liquid to be filtered so that there is a lower liquid, level in the casing and by adjusting the casing clock-wise. In the apparatus shown, the pipes 20 have valved connections with a manifold 21, so that those not required in use can be cut off. The scraper 24 is formed at the edge of a trough 23 provided with a scroll 25 which moves the detached solid to an outlet 11. The casing is supported by arcuate rails 2 which engage rollers 3 on foundation supports 4, and is adjusted by means of a pinion 6, turned by power or by a handle 8 and which engages an arcuate rack 5 on the casing. In the apparatus shown in Fig. 4, the casing is supported by hollow trunnions 31, 32, and adjusted by means of a gear wheel 36 on the trunnion 31. The filter drum is supported by a hollow shaft 35 passing through the trunnions 31, 32 and is divided into sections 34a at right angles to the axis.
Patent GB-126077-A (GB)
Title: An Improved Method of and Apparatus for Drying Picric Acid.
Inventor: GRAESSER NORMAN HUGO
IPC: C06B21/00
Filed: 1916-12-02
Abstract: 126,077. Graesser, N. H., and Williams, E. Dec. 2, 1916. Endless-band conveyers, granular material carried on.-Picric acid is dried by passing it through a heated chamber by means of a belt or band conveyer. The apparatus shown comprises a heated chamber g through which the material is carried on a band b driven by rollers c with teeth d engaging perforations in the sides of the band. The band is supported by rollers f which are of varying diameters to agitate the material in its travel; weighted rollers k are provided for tensioning the band. The chamber is heated by steam pipes i; currents of hot air may also be used. A feed hopper a, outlet l, and inspection windows h are provided. Jets or sprinkler pipes are provided to drench the material in case of fire.
Patent GB-936833-A (GB)
Title: Improvements relating to the production of p.n. junctions in semi-conductor material
Inventor: ROUSE ROBERT LINDSAY
IPC: H01L29/86
Filed: 1959-05-21
Abstract: 936,833. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 6, 1960 [May 21, 1959], No. 17346/59. Class 37. A PN-junction device is produced by heating a crystal body of semi-conductor material containing impurity activators of opposite conductivity types and characterized by a crystal structure possessing an internal crystal boundary forming an array of dislocations substantially regularly spaced, the heating being such as to produce controlled diffusion and deposition at the crystal boundary of one or more of the activators. Fig. 5 shows a device made by the method. The crystal boundary is a pure tilt boundary, i.e. the boundary between two crystals which are each rotated by #/ 2  from an axis in the tilt boundary, the angle of misfit between the two crystals being #. Such a boundary consists for small values of # of parallel lines of misfit separated by an angle #. The body 1 is obtained from an ingot produced by seed crystal withdrawal from a melt of semiconductor material containing both P and N- type activators. Assuming the body to be silicon and to contain aluminium and phosphorous the relative concentration of the activators at the dislocations is as shown in Fig. 2. The body is then heated to near the melting-point either in vacuo or in an inert atmosphere. A temperature of 1250‹ C. is suggested for silicon. During heating diffusion to and deposition at the dislocation takes piace so that tubes of N-type material are formed as shown in Fig. 4. The concentrations are then as shown in Fig. 2. The radius of the N-tubes can be varied by control of temperature, time and the relative levels of N and P-type impurities. Ohmic contact is made to the N-type regions by means of a metal tag 5 located at the surface of the body by means of a hydrofluoricnitric-acetic acid etch. After heat treatment the surface layer is removed by grinding or other means. This removes the N-type surface skin which is formed on heat treatment. The PN- junction profile can then be delineated on the surface by moans of etching. Contacts may be applied to the P and N regions by alloying a gold wire containing aluminium to the N-type zone and aluminium to the P-type. Specifications 756,339 and 936,831 are referred to.
Patent GB-867305-A (GB)
Title: Flexible unit for toys and the like
Inventor: DERHAM PHILIP A
IPC: A63H3/04
Filed: 1958-05-30
Abstract: 867,305. Flexible units for toys. WILKENING MANUFACTURING CO. May 30, 1958, No. 17347/58. Class 132(3). A flexible unit for building a toy comprises ring-like segments 20 joined by flexible selfrestoring connectors 22, 23, Figs. 1, 2. The segments shown in Figs. 5, 6 have hub-like portions 24 integral with connectors 26 and joined to the ring 21 by spokes 25. In a further modification, Fig. 11, the ring portion 28 of a disc-like segment is incomplete and points 29, 30 serve as supports which prevent the segment from rolling; the connectors 26 are integrally connected to a thin web 32. Alternate connectors may be disposed at right angles to each other so that a unit, Fig. 15 (not shown), will be flexible in two planes. Fig. 16 shows a toy snake consisting of a number of units 31, 33 joined by members 36. The units may be used to. join intervening sections provided with wheels. The segments may be oval-, kidney- or star-shaped and some of the adjacent segments may be connected by a helical web. The units may be moulded of polyethylene, vinyl plastics or rubber-like compositions.
Patent GB-988852-A (GB)
Title: Improvements in or relating to crushers
Inventor: BOULY HENRI GEORGES
IPC: B02C2/04
Filed: 1960-05-17
Abstract: 988,852. Gyratory crushers. NORDBERG MANUFACTURING CO. May 17, 1961 [May 17, 1960], No. 17396/60. Heading B2A. The bowl 18 of a gyratory crusher is adjustable relatively to a tilting ring 14 by means of one or more hydraulic rams 48 each of which is pivotally mounted on a sleeve 50 formed integrally with the ring 14 and has a nose portion 96 engageable under the action of a spring 86 with teeth 94 on a ring 92 secured to a rotatable part 34 keyed to an extension 44 of the bowl 18. Specification 988,853 is referred to.