baber/WOPTO huggingface dataset:
Patent GB-765392-A (GB)
Title: Improvements in or relating to process and apparatus for production of finely divided materials
IPC: B02C19/06
Filed: 1955-02-14
Abstract: 765,392. Reducing ground perlite ore. INTERNATIONAL MINERALS & CHEMICAL CORPORATION. Feb. 14, 1955 [Feb. 15, 1954], No. 4292/55. Class 59 Apparatus for producing finely divided particles from ground perlite ore comprises a furnace 11 for expanding perlite particles, an abrader assembly 40, Fig 2, positioned adjacent the furnace, and means for conveying the expanded perlite particles at a high velocity to the abrader assembly whereby a major portion of the particles are fractured. Ground perlite ore is conveyed from a feed hopper 10 to the furnace to the lower end of which are supplied (a) fuel gas through a line 16 and (b) combustion air at high velocity through a conduit 18 by means of a motordriven blower 20. The upper end of the furnace has a constricted outlet opening 31, Fig. 2, surrounded by a chamber 34 in which the abrader assembly 40 is located. The abrader assembly comprises inner and outer conical elements 41, 42 provided with rasp-like surfaces, the element 42 being secured to the wall of the chamber 34 by means of struts 45 and the element 41 being vertically adjustable relatively to the element 42 by means of a hand wheel 60. The chamber 34 is also provided with a conical abrading element 65 and with an abrading surface 67. The lower end of the element 41 has a disclike deflector 62 secured thereto.. The fractured perlite particles together with the unfractured or partially fractured particles are blown upwardly from the chamber 34 through a conduit 75 provided with an abrading asembly 77 to a cyclone separator 81, Fig. 1, from which the fractured particles leave through a conduit 82 while the coarser particles are released by a valve 84 into a conduit 85 communicating with a motor-driven blower 88 which forces the particles upwardly through a conduit 90 provided with an abrading assembly 92 .and the particles are dropped under pressure through a conduit 70 into the chamber 34 for recirculation. The fractured particles the coarser particles are released by a motor-driven blower 100 through a conduit 105 to a cyclone separator 106 from which fractured particles of the desired size are discharged into a bin 110. An extremely fine by-product is exhausted from the separator 106 and is collected in a conventional baghouse 112. Additional abrader assemblies may be inserted in other portions of the apparatus e.g. in the blower housings.
Patent GB-191302-A (GB)
Title: Improvements in and relating to charge diluting devices for internal combustion engines
IPC: F02D9/00
Filed: 1922-02-14
Abstract: 191,302. Stockman, W. B., East, E. K., and Morton, B. S. Feb. 14, 1922. Closure members, sliding. - In an extra air valve device for internal-combustion engines of the kind wherein air from a heater is drawn by engine suction into the induction pipe through a valve operable in unison with the carburettor throttle valve, the air valve is individually movable to open position when the throttle valve is closed. A second air control valve movable to position to cut off the hot air and to admit cold air is also provided. As shown, air from a heater secured to the exhaust manifold passes through a pipe 19 and valve casing 20, 34 to a distributor 53 adapted to be clamped between the carburettor and the induction pipe. Sliding in the casing 20 is a squared control valve 24 provided with a straight through passage 25 for hot air, and a right-angle passage 26 opening through one side and the bottom face of the valve, and adapted, when brought into alignment with an inlet 23 in the casing 20 to admit cold air. The valve 24 is adjusted from the steering post by a wire 31. Sliding in the casing 34 is a square valve 37 provided with a series of graduated holes 40, and attached by a spring 42 to the throttleoperating rod 52 which is also attached by a spring 50 to a lever 45 engaging the throttle lever. As the throttle is opened, the holes 40 are brought successively into alignment with the air passage. The valve 37 is also provided with a hole 41 which, by a further movement of the rod 52 when the throttle is closed, is brought into alignment with the air passage to admit air for cooling or braking. In a modification of the control valve 24, the right-angle passage 26 opens through the bottom face and one end of the valve.
Patent GB-610344-A (GB)
Title: A process for improving lubricants
Filed: 1946-02-12
Abstract: The oxidation stability of hydrocarbon lubricating oils and of hydrocarbon greases which do not contain soap is improved by the addition of a small proportion of an aliphatic alpha-amino carboxylic acid, or a derivative thereof, soluble in the lubricant, and having the general formula R3(R4)NC(R1)(R2)COOX, in which R1 and R2 are hydrogen or aliphatic radicals, R3 and R4 are hydrogen or aliphatic, cyclic or mixed aliphatic-cyclic hydrocarbon radicals and X is hydrogen, a metal, ammonium, or an organic base, or an aliphatic or cyclic hydrocarbon radical.  The groups R1, R2, R3 and R4 should preferably contain together at least three carbon atoms, and R1 and R2 may be substituted by halogen, OH, SH, OR, SR NH2, NHR, NRR1 and similar groups, in which R and R1 are alkyl, aryl, or aralkyl radicals. Examples of suitable amino acids and their derivatives corresponding with the above general structural formula are: alpha-amino valerianic acid, alpha-amino caproic acid, allylamino acetic acid, amylamino acetic acid, di-ethylamino acetic acid, phenylamino caproic acid, ethylamino acetic acid ethyl ester and tri-ethylammonium amyl amino acetate.  The proportion of amino compound added to the lubricant may range from a few hundredths of a per cent to a few per cent.  The esters and the ammonium or nitrogen base salts of the amino acids dissolve comparatively readily in hydrocarbon lubricants.  The amino compounds in question counteract the effect of metallic oxidation catalysts such as iron and copper, or their compounds.  The Specification as open to inspection under Sect. 91 refers to the use of ethoxy-ethylamino caproic acid and ethylthio-ethylamino caproic acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1286901-A (GB)
Title: Improvements in taps for gas appliances
Inventor: GOUVILLE JEAN-BERNARD DE
IPC: F16K31/68
Filed: 1970-01-29
Abstract: 1286901 Valves ETABS SOURDILLON MATRICAGE ET ROBINETTERIE DE PRECISION 29 Jan 1970 [31 Jan 1969] 4397/70 Heading F2V A thermostatically controlled tap comprises a turning member 5 having a chamber therein and a thermostatic control valve 9 at the end of the member remote from a handle 4. Gas enters the inlet 15 and, when the thermostatic valve 9 is open, passes to the inside of the conical valve member 5. The member 5 can be rotated by the handle 4 from a closed position (Fig. 7) to either an "oven" (Fig. 9, not shown) or "grill" (Fig. 5, not shown) position by aligning the bore 10 of the conical member with the outlets 14, 12, respectively. The handle 4 carries an arm 7 which co-operates with a fork 6 of the conical member 5 to impart rotary motion. The valve member 9 is associated with a sleeve 25 which is splined at its end 26 so that the rotary movement of the handle 4 is imparted to it. The valve member 9 is thus axially displaced by rotating on a spindle 24 of a rod 21. It is also thermostatically controlled by a flexible diaphragm 20 acting on the rod 21, the diaphragm responding to expansion of the thermostatic fluid 19 which is in communication with the oven via a part 18. An adjustable bypass pilot control is provided at 33.
Patent GB-162830-A (GB)
Title: Improvements in cotton openers, scutchers or lap machines
IPC: D01G9/00
Filed: 1920-02-13
Abstract: 162,830. Taylor, Lang, & Co., Ltd., and Mills, E. Feb. 13, 1920. Guards, controlling.-The lap roller in a cotton opener, scutcher, or lap-forming apparatus is protected by a guard a, which is operated by the starting-handle and is interconnected with the weighting-rack so that it is maintained in position when the rack is weighting the rollers and the machine is in operation. The guard is pivoted on a rod b, Fig. 1, and is lowered into position on movement of the starting-handle t, through the slotted link q and lever n. It is raised gradually as the lap grows by the weighted lever h which bears under a pin j on one of the weighting-racks m. The guard can be locked in its closed position when the racks are raised by a catch w, Fig. 3, controlled by a spring 2. The catch w bears by means of the stud z on the edge of the rack, so that as the rack is lowered its enlarged head will release the catch, the guard then being controlled by the pin j and lever h. The guard is provided with a movable board c for directing the lap round the roller at the beginning of the winding operation.
Patent GB-1080762-A (GB)
Title: Polypropylene films, filaments etc. for ropes and other cordage
Inventor: PARSEY MICHAEL RICHARD
IPC: D01F6/04
Filed: 1965-02-02
Abstract: A process for the production of film, ribbons, filaments or fibres from stereoregular polypropylene by melt extrusion and drawing of the solidified extruded-material, is characterized in that the material is subjected to longitudinal drawing with a draw ratio of at least 13:1, the extruded thickness and the draw ratio being selected so that the drawn products have a thickness of at least 0.003 inches (0.008 cms).  Preferably the stereo-regular polypropylene is isotactic polypropylene. Stereo-regular polypropylene filaments so made have an extensional modulus of at least 60g. per denier, a torsional recovery of not greater than 55% and a tenacity greater than 6g. per denier.  Such filaments and fibres are useful in the production of ropes and twine.  In Examples 1 isotactic polypropylene is melt-cast at 260 DEG C. into a film of 12 3/4 inches width which is longitudinally slit into ribbon filaments, which are subsequently hot drawn by passage through an electrically heated radiant heater supplying radiant heat to both sides of the filaments, at a ratio of 13:1 to ribbon filaments having a width of 0.57 inches and a thickness of 0.0035 inches (0.009 cms.).  A three inch (7.6 cms.) circumference 3-strand laid rope constructed from these ribbon filaments has a breaking load of 8.3 tons (8,433 kgs.) and a creep (residual extension after 120 repeat loadings to 75% of the baking load, expressed as a percentage of the original unextended length) of 10%.  In Example 2, isotactic polypropylene is melt-spun at 250 DEG C into circular monofilaments which are solidified by quenching in a water bath to filaments of 0.055 inches diameter (0.14 cms.), which are subsequently drawn into stages, first through a steam chamber at 100 DEG C. and then over a 12 ft. long (3.7 metres) metal plate heated to 135 DEG C. using an overall draw ratio of 14:1 to yield filaments having a diameter of 0.015 inches (0.038 cms.) and an extensional modulus of 100 gms. per denier, a torsional recovery of 50% and a tenacity of 6.5 g. per denier.  A 3 inch (7.6 cms.) circumference 3-strand aid rope made from these filaments has a breaking load of 8 tons (8,128 kg.) and a creep of 12%.
Patent GB-929140-A (GB)
Title: Improvements in or relating to hydraulic clamping systems
IPC: B23Q39/04
Filed: 1962-02-07
Abstract: 929,140. Machine tool details. POWER JACKS Ltd. Feb. 7, 1962 [Feb. 14, 1961], No. 4654/62. Class 83 (3). In a drilling &c. machine, workpieces 13 are clamped on the table 10 at drilling stations A, B, and loading or unloading stations C, by hydraulic units 16, four of which are provided at each station, connected to a pump 24, the pumps being actuated in turn, as the table is indexed by an actuating unit 33 fixed to an arm 43 on a support 12. Each unit 16 comprises a cylinder and piston 17, 18, connected to the pump 24 by a conduit 23, and each pump comprises a cylinder and piston 26, 27, a non-return valve 25b, and a relief valve 30 actuated by a hand wheel 31. Unit 33 comprises a pneumatic piston and cylinder 35, 36, supplied with air from a compressor by a pipe 40, the supply being controlled by a valve 41 operated by a lever 42. Unit 33 is rigid on support 43, which is vertically slidable on support 12, and carries a hook 44 which is engageable with a hook 45 adjacent each pump 24. In operation workpieces 13 are loaded at station C, unit 33 is raised to engage hooks 44, 45, and is then clamped. Air is supplied to unit 33, which operates pump 24 to clamp the work. Unit 33 is lowered, the pressure being maintained in units 16 by non-return valve 25b, and the table is indexed to move the workpieces to station A. After completion of the drilling at stations A, B, the workpieces are removed at station C by opening relief valve 30. In a modification, workpieces are clamped on a machine bed which moves linearly, and the system may include a pressure accumulator.
Patent GB-396464-A (GB)
Title: Improved construction of apparatus for marking lines on roads, tennis courts and the like
IPC: E01C23/20
Filed: 1932-02-17
Abstract: 396,464. Marking roads. BELL, W. T., Globe Works, Lincoln, and BENNETT, J. F., Gordon Cross House, Dronfield, Derbyshire. Feb. 17, 1932, No. 4703. [Class 132 (ii).] Apparatus for marking lines on roads, tennis courts, or the like comprises a wheeled chassis, a tank for holding the marking medium mounted thereon, a roller in the tank, a movable distributing roller normally resting against the first roller in the tank with part projecting therefrom, a frame hinged to the chassis and carrying a marking roller or rollers normally in contact with the distributing roller and means for raising the marking roller or rollers out of engagement with the road or surface. As shown, a chassis 1 mounted on wheels 2 carries a tank 3 inside which is a roller 4 mounted in bearings 4a. A roller 5 loosely mounted in bearings 5a normally rests against the roller 4. Hinged to the chassis 1 at 6 is a frame 7 carrying a marking roller 8 normally in contact with the roller 5 and on the axle 8a of the roller 8 are arms 9 carrying a brush 10. The axle 8a and the shaft 10a of the brush 10 carry pulleys 11 connected by a band 11a. The frame 7 is provided with a lever 12 hinged to the chassis 1 at 12a for rocking the frame 7 so that the marking roller 8 is lifted from the road and the distributing roller 5 is lifted from the roller 4. The marking roller 8 may comprise a number of indiarubber or felt discs 8b held between rigid plates 8c, Fig. 3. A centring device for the machine comprises a pointer 13, Fig. 4, pivoted at 13a to the machine and working a slide 14 connected to resilient members 14a carrying handles 14b. By placing the machine in the middle of the road and allowing men holding the handles 14b to walk along the edges of the road, deviation from the centre line of the road will be shown by movement of the pointer 13 on the quadrant 15.
Patent GB-674439-A (GB)
Title: Improvements in contact-spring assemblies for electric switching devices
IPC: H01H50/58
Filed: 1950-02-23
Abstract: 674,439. Electromagnetic relays. VIGREN, S. D., BROBERG, W. O. W., and ZANDER, R. A. Feb. 23, 1950. [Feb. 24, 1949] No. 4717/50. Class 38 (v). A contact spring pile-up for a relay has a common supporting-stud 4 for the fixed springs 6 ... 8, and a common actuating stud 3 for the movable springs 9 . . . 12, each stud having a number of equally-spaced teeth engaged by the springs, the arrangement being such that all of the contacts are closed by the resilience of the springs. Each stud has a tooth corresponding to each spring and the teeth on one stud are slightly offset relatively to those on the other so that the springs of one pair may be interchanged and still engage the same stud. In Fig. 1, springs 6, 12 form a "break" contact, the spring 12 normally being out of engagement with stud 3 so that the contact pressure is not reduced by the stud. Springs 7, 11 form a "make" contact, the latter normally engaging the underside of a tooth on stud 3 so as to be separated from spring 7, and springs 10, 8, 9 form a "break-beforemake" contact, which may be changed to a "make-before-break" contact by increasing the height of the contacts of spring 8 or by bending down the tip of spring 10 and bending up the tip of spring 9. The stud 3 is normally held against a strut 2 by a spring 13 which returns the stud when the electromagnet (not shown) is de-energized. In a modification, Fig. 6 (not shown), two sets of teeth, one on each side of the stud, are directed laterally of the springs.
Patent GB-245958-A (GB)
Title: Improvements in multicolour offset printing machines
IPC: B41F7/06
Filed: 1925-02-20
Abstract: 245,958. Evans, A. B. Feb. 20, 1925. Rotary offset machines.-A multi-colour rotary offset printing-machine of the kind described in Specification 6246/08, in which an impression cylinder u coacts with two or more offset surfaces h, i receiving designs from printing-plates b, c, is constructed as an under-fed machine by arranging the cylinder u in such a manner that the plane containing the axes of the cylinders u, g is inclined to the vertical. The sheets are fed from a table r to grippers on a rocking shaft t and are, transferred to grippers u<1> on the cylinder u, and after nearly two revolutions of the cylinder u are taken, with the printed side outwards, by grippers v on chains w so that the printed side of the sheet is not brought into contact with any part of the machine. Specifications 8107/14, [Class 100 (i), Feeding and delivering webs &c.], and 179,637 also are referred to.
Patent GB-741863-A (GB)
Title: Improvements in or relating to plastic compositions
Inventor: WALKER ERIC EATON
IPC: C08K5/521
Filed: 1952-02-22
Abstract: A film-forming composition comprises an organic film-forming material, a plasticizer therefor containing chlorine or bromine and, as a stabilizer, a small proportion of a salt of an aromatic carboxylic acid in which a carboxyl group is directly attached to an aromatic nucleus.  The film-forming material may be a cellulose ester of a carboxylic acid, such as cellulose acetate, propionate, acetate propionate or acetate butyrate; a cellulose ether such as ethyl or benzyll cellulose; or a polyvinyl or polyvinylidene compound such as polyvinyl chloride or a copolymer of vinyl chloride with vinyl acetate or of vinyl chloride and/or vinylidene chloride with acrylonitrile and/or methacrylonitrile.  The plasticizer may have hydrogen attached to a carbon atom adjacent to a carbon atom to which is attached chlorine or bromine. Specified plasticizers are tri(beta - chlorethyl) phosphate, beta - chlorethylmethoxyethyl - butoxy - ethyl phosphate and the chlorobutyl and chlorobutoxy-butyl esters referred to in Specification 651,662, e.g. delta-chlorobutyl acetate, delta-chlorobutoxy-butyl acetate, and di-(delta-chlorobutyl) phthalate.  Other plasticizers such as tricresyl or triphenyl phosphate may also be present.  The stabilizer may be an alkali metal salt of phthalic acid, preferably a di-alkali metal salt and particularly disodium phthalate, or the sodium or other alkali metal salt of benzoic acid, isophthalic acid, terephthalic acid, p-toluic acid, p - methoxy - benzoic acid, alpha - or betanaphthoic acid or salicylic acid.  The use of corresponding salts of calcium, barium, strontium, magnesium or lead is mentioned.  The compositions may contain colouring matters, the presence of the stabilizer being particularly beneficial when the colouring matter is one which, like 1-amino-4-hydroxy-anthraquinone, 1 : 4 - diamino - anthraquinone, 1-ethanol - aminoanthraquinone, Rhodamine 6G or the azo dye from diazotized p-nitroaniline and N - di - (beta - hydroxyethyl) - m - chloraniline, is deleteriously affected by the action of heat and/or light in the presence of the plasticizer.  In the example 100 parts of cellulose acetate flake is mixed with 50 parts of acetone, 30 parts of trichlorethyl phosphate, 10 parts of triphenyl phosphate, 0.3 part of disodium phthalate or sodium benzoate and 0.1 part of 1-amino-4-hydroxy-anthraquinone, the mixture is worked on heated rolls until the acetone content is reduced to about 10 per cent, and the sheets from the rolls are stacked and pressed at about 100 DEG C. into a solid block.  The block is then cut into sheets, seasoned to remove acetone and finally polished by pressing warm between polished metal sheets.  The Provisional Specification also refers to compositions in which the stabilizer is an alkali metal salt of hexahydrobenzoic acid or of an acid which is wholly aliphatic or which contains an aromatic nucleus to which a carboxyl group is indirectly attached, as in phenylacetic acid.
Patent GB-1511241-A (GB)
Title: Laminate
IPC: B32B27/00
Filed: 1974-02-01
Abstract: 1511241 Decorative products CHARLOTTE INVESTMENTS CORP 31 Jan 1975 [1 Feb 1974] 04829/74 Heading B2E A method of producing a mouldable laminate comprises providing a transparent layer of a thermoplastic acrylic material, applying an ink or paint layer on a face of the transparent layer and then applying an opaque backing layer of a thermoplastic acrylic material covering substantially all of the ink or paint layer. The ink or paint layer may be based on a thermoplastic material, which may be of low molecular weight. The transparent layer may be a cast sheet of polymethylmethacrylate and the decorative or functional, continuous or interrupted, layer of ink or paint may be applied by screen-printing. The product may be obtained by applying to one face of a substantially horizontally disposed transparent layer of thermoplastic acrylic material, an ink or paint layer, applying over the ink or paint layer and over uncovered parts, if any, a layer of a liquid acrylic polymerising mixture, allowing this mixture to continue to polymerise, maintaining the temperature of the polymerising mixture below the boiling point of any of its components and below a temperature at which the components of the ink or paint layer are aesthetically damaged and finally post curing the laminate, the polymerisation of the liquid acrylic polymerising mixture resulting in an opaque layer.
Patent GB-697522-A (GB)
Title: Improvements in or relating to weighing apparatus
Inventor: LAYTON DUDLEY AUSTIC
IPC: G01G21/04
Filed: 1950-02-24
Abstract: 697,522. Knife-edge bearings. LIGHT ALLOY UTILITIES, Ltd. March 19, 1951 [Feb. 24, 1950], No. 4832/50. Class 12 (i). A knife-edge bearing 1c comprising a substantially wedge-shaped body 1 having parallel side face portions 1b is removably attached to a scale beam 2 by means of a nut 6 and bolt 7, and is located in a slot 4 in the beam 2. The bolt hole in the member 1 is countersunk to receive the head of the bolt. A hardened stud 8 may be let into the slot 4 substantially in alignment with the knife-edge 1c, the body 1 being suitably chamfered at this point. In a modification the knife-edge is located between parallel levers 9, Fig. 4, provided with slots 4a for engaging the end faces 1a of the knife edge body. Specification 144,151, [Class 12 (i)], is referred to.
Patent GB-1063763-A (GB)
Title: Improvements in and relating to constant electrical current supply circuits
IPC: H03F1/30
Filed: 1965-02-04
Abstract: 1,063,763. Current stabilizers. LE MATERIAL ELECTRIQUE S.W. Feb. 4, 1965 [Feb.7, 1964], No.4872/65. Heading G3X. The current from a source 3 is stabilized by a circuit including transistors T1, T2 and resistors R2, R4, R5, R6 interconnected as shown. The emitter of transistor T1 is connected to a reference voltage source 1 and the Specification shows that the collector of transistor T2 provides the required stabilized output.