baber/WOPTO huggingface dataset:
Patent GB-835660-A (GB)
Title: Ball point seating method and apparatus
IPC: B43K1/08
Filed: 1958-05-14
Abstract: 835,660. Making ball-point pens; spinning; altering physical structure. PAPER MATE MANUFACTURING CO. May 14, 1958 [May 27, 1957], No. 15438/58. Classes 83 (2) and 83 (4). In a method of assembling together and producing clearance between a ball 12 and the inner walls of a cavity for the ball in a metallic nosepiece of a ball-point pen, the nose-piece is restrained against rotation while it is rolled or spun by a plurality of rotating metal spinning surfaces which also move in a circular orbital path around the nose-piece. A rotatable spinning head 28 supports freely rotatable spinning discs 16 and is rotated by a drive through a gear 54 keyed to a sleeve assembly 50 mounted in a housing 30. The spinning head comprises a chuck plate 60 slidably mounting two or more holders 62 for the discs 16 adjustable radially by screws 68. A non-rotatable pin 46 has a conical end 20 urged into contact with the angled upper surfaces 24 of the discs 16 by air pressure exerted on a piston 40 acting through a cushioning spring 42. The pin is held against rotation by a fixed bifurcated arm 48. Each disc 16 has a lower frusto-conical face suitably angled to contact the outer face 13 of the nosepiece 11 which is held in a work-table 26. Either the work-table or the spinning-head is movable vertically when the nose-piece is to be worked. In operation movement of the discs 16 produced by frictional engagement with the conical end 20 of the pin 46 when the spinning head 28 is rotated causes the metal wall of the nose-piece to be sprung a desired uniform distance from the ball. In a modification, Fig. 7, the spinning discs 16 are driven through interchangeable gear elements 90 attached to the discs 16 and a small removable drive gear 92 fixed to the lower end of the pin 46. In another modification the non-rotating contact means does not engage the discs 16 directly but engages the spindles mounting the discs for rotation or means attached to such spindles. In another modification one disc is slightly higher or lower than the other. Specification 811,965 is referred to.
Patent GB-1406787-A (GB)
Title: Test device
IPC: C12M1/26
Filed: 1973-03-30
Abstract: 1406787 Test devices AMES-YISSUM Ltd 30 March 1973 [18 April 1972] 15543/73 Heading G1B A test device 10 for determining the presence and concentration of a suspected material in a solution comprises a flat bibulous matrix 11 having opposite surfaces, each of said surfaces having attached thereto in surface to surface contact over the entire overlapping areas a separate unconnected member in the form of a layer 12, 13 of liquid impermeable material, one of said layer members being substantially transparent, said matrix having peripheral edge portions exposed between said separate layer members and having incorporated therewith a reagent test system which is capable of generating a colour change in response to contact with said suspected material, whereby upon immersion of the entire peripheral edge of the matrix in a solution containing said suspected material, flow of said solution into said matrix from the peripheral edge causes formation in said matrix of a colour pattern visible through said transparent layer member. The width of the colour pattern may be used as a measure of the concentration of the material in the solution. The member 13 may be extended to form a handle 14 for the device. The matrix may be of filter paper and the layer members of polyethylene terephthalate or polystyrene. The matrix may be rectangular as shown or may have oval, circular, hexagonal or triangular shape.
Patent GB-1108241-A (GB)
Title: Improvements in the production of carbon black with increased structure characteristics
IPC: C09C1/50
Filed: 1965-04-12
Abstract: <PICT:1108241/C1/1> Modified furnace carbon black having high structure characteristics is produced from normally liquid hydrocarbon feedstock having a Bureau of Mines Correlation Index (as defined) of at least 95 by introducing a stream of feedstock axially into a carbon black furnace, introducing a separate coaxial stream of a free oxygen containing gas containing at least 33 volume per cent oxygen, in an amount sufficient to supply at least 7.4 S.C.F. of oxygen per U.S. gallon of feedstock, partially burning the feedstock in the furnace under carbon black producing conditions and recovering the carbon black produced.  The free oxygen containing gas may be essentially pure oxygen and is introduced into the furnace at a linear velocity of 40 to 250 feet/sec.  The process may be carried out in a furnace such as that described in Specification 679,818. This apparatus may however be modified by provision of a hydrocarbon feed assembly slidably extending from outside the furnace into the feed introduction chamber, jacket gas being introduced coaxially with the hydrocarbon feed.  As shown in Fig. 5, the furnace is provided with a cylindrical pre-combustion section 14 upstream of, in communication with and axially aligned with the reaction chamber 10. A feed introduction chamber 27 is similarly disposed upstream of the pre-combustion chamber 14.  A plenum chamber 28 is sited upstream of the chamber 27, and is closed by a flange plate 29 with a central opening 31 through which a jacket gas conduit 181 extends axially and slidably. The hydrocarbon feed inlet 171 extends axially through the closed and of 181 providing an annular space between 171 and 181. The free oxygen containing gas is introduced via 201 into the annular space.  171 and 181 comprise an integral assembly which can be slid in and out of the chamber 27.  The remainder of the furnace is constructed conventionally.
Patent GB-1274671-A (GB)
Title: Ultrasonic dental apparatus
Inventor: GOOF SVEN KARL LENNART
IPC: A61C1/05
Filed: 1968-04-01
Abstract: 1,274,671. Ultrasonic dental apparatus. S. K. L. GOOF. 16 May, 1969 [1 April, 1968], No. 15608/68. Heading A5R. [Also in Division H2] An ultrasonic dental apparatus comprises a tip structure B, including a tool 10, and concentric tubular members 24, 29 defining an annular space 24a in communication with a cooling medium nozzle 21a, and a handpiece A, on which the tip structure is mountable, including a coil 14a of a transducer for vibrating tool 10 and mounted on a first tubular member 14 in the handpiece, a second tubular member 28 surrounding the first tubular member to define an annular space through which a cooling medium may flow to the annular space 24a in the tip structure B when the tip structure is assembled on the handpiece, and a switch 15 for the transducer including a manually operable actuator member 38 for the switch, provided on the handpiece A. The concentric tubes 24, 29 of the tip structure engage with O-rings 31, 30 in the handpiece to retain the structure and to seal the cooling fluid passages. Tool 10 is held between fastening member 26 and nozzle carrier 23 in a continuation 25 of the tubular member 29. Ring 27 seals the annular passage at the rear of the nozzle carrier. The tool 10 is rigidly secured to a cylindrical vibration transmitting member 12 to which is releasably secured a transducer core 13 of sintered particles of magnetisable material. The handpiece has a casing comprising front, rough, and rear, smooth, portions 36, 32. Front portion 36 has a shoulder F for abutting a corresponding shoulder S on the tip structure. At the rear of the front portion 36 is an annular groove 37a within which axially slides annular switch actuating member 38, which actuates microswitch 15 through a flat spring 39. Microswitch 15 is sealed from the cooling medium channels by O ring 42; the cooling medium passes through conduit 40 through the structure holding the microswitch from a supply pipe (16, Fig. 1, not shown).
Patent GB-1215012-A (GB)
Title: THE PRODUCTION OF alpha-HYDROXY CARBOXYLIC ACIDS
Inventor: CHARMAN HUGH BERNARD
IPC: C07C51/235
Filed: 1967-04-05
Abstract: 1,215,012. α-Hydroxy carboxylic acids. IMPERIAL CHEMICAL INDUSTRIES Ltd. 25 March, 1968 [5 April, 1967], No. 15686/67. Heading C2C. α-Hydroxy carboxylic acids are produced by contacting with free oxygen at a pressure to maintain the components in a liquid phase a solution comprising an aldehyde of formula RCH 2 CHO in which R is a hydrocarbon group containing at most 10 carbon atoms in which each of the carbon atoms is saturated or is contained in an aromatic ring; a heterocyclic aromatic compound containing a nitrogen atom in its aromatic ring; cupric ions; and water or a saturated alcohol having at most 4 carbon atoms, the solution being free from any base which has a pK value (in water at 20‹ C., at a concentration of 0À05 N) of less than 4. The cupric ions may be provided in the form of any cupric salt soluble in the reaction mixture, e.g. cupric sulphate, nitrate, chloride, bromide, iodide, acetate or benzoate or a soluble cupric carboxylate. The alcohol may be mono- or dihydric. The reaction may be carried out at a temperature between 30 and 130‹ C. and a pressure of 0À5 to 50 atmospheres may be employed. Preferably the solution should contain a low concentration of aldehyde, at most 50% by weight, which is fed into the reaction medium continuously during the course of the reaction to achieve a low standing concentration of aldehyde. In the examples the aldehydes used are n-butyraldehyde and propionaldehyde. Lactic acid and pyruvic acid are produced in minor amounts when the aldehyde used is nbutyraldehyde. The methylester of 2-hydroxy n-butyric acid is formed by reaction of 2- hydroxy n-butyric acid with diazomethane in Example 1. In Example 2 the product lactic acid is esterified with diazomethane to give methyl lactate.
Patent GB-372962-A (GB)
Title: Improvements in linoleum
IPC: D06N1/00
Filed: 1931-05-29
Abstract: 372,962. Linoleum. RYLANDS & SONS, Ltd. and POLLITT, A., 36, Princess Street, Manchester. May 29, 1931, No. 15709. [Class 140.] Linoleum is made by spreading ground cork composition on a backing of wool felt impregnated with bituminous material and pressing between heated rollers. The surface of the felt may be scored or perforated to assist adhesion. The cork face is painted or printed with an ornamental design and the exposed surface of the @ is also painted. Reference has been directed by the Comptroller to Specifications 127,536 and 248,058, [both in Class 140, Waterproof &c. fabrics].
Patent GB-150470-A (GB)
Title: Improvements in and relating to counting apparatus
IPC: G06M1/04
Filed: 1919-06-25
Abstract: 150,470. Orme, T. A., and Stansfield, A., and Meters, Ltd. June 25, 1919. Counters actuated by reciprocating mechanism; zeroizing-mechanism.-For looms and textile operations, counters are fitted with zeroizing means which entirely disables the actuating means, allowing all of the indicating wheels to be reset by hand. A reciprocating actuating-arm g<2>, Fig. 2, has a pawl g to engage a triangular hub h on a pinion h<1>. This gears with a pinion a driving the units disk, the transfer to higher wheels being by similar pinions a on the same spindle c. This spindle is carried in a frame d pivoted at d<1> and having a pin f to engage a camslot f<3>, Fig. 1, in a sliding plate f<2> which can be locked to maintain the pinions a in active position by placing a pin in a hole f'. To zeroize, the pin is removed and the plate pushed inwards to ungear pinions a, whereupon the number wheels can be rotated to zero by manipulating pinions i in gear with them.
Patent GB-515192-A (GB)
Title: Improvements in or relating to the manufacture of aromatic dinitriles
IPC: B31B3/74
Filed: 1938-05-27
Abstract: 515,192. Aromatic dinitriles. DU PONT DE NEMOURS & CO., E. I. May 27, 1938, No. 15947. Convention date, May 29, 1937. [Class 2(iii)] Aromatic dinitriles are prepared by reacting ammonia and an aromatic dicarboxylic acid, anhydride, amide acid, amide or imide, in the gaseous phase in the presence of basic aluminium phosphate as catalyst. In examples, ammonia is reacted with o-phthalic acid, phthalic anhydride, phthalamic acid, phthalamide or phthalimide. The temperature of the reaction is 300 to 500‹C., and the time 2 to 12 seconds. The basic aluminium phosphate catalyst is the hydrate of Al2(PO4)3 obtained by precipitating an aqueous solution of alum or aluminium sulphate with a water-soluble phosphate. A certain amount of aluminium sulphate is present in the product. Specification 413,639 is referred to.
Patent GB-917699-A (GB)
Title: Improvements in or relating to a gaseous fluid actuated hydraulic power unit
IPC: F01B17/00
Filed: 1961-05-03
Abstract: 917,699. Reciprocating pumps. APPLIED POWER INDUSTRIES Inc. May 3, 1961 [May 26, 1960], No. 15956/61. Class 102(1). [Also in Group XXVI] A fluid pressure actuated pump comprises a motor piston 48 engaging a spring loaded pump piston 50 which draws liquid from a flexible reservoir 67 and delivers it to an outlet 114. The motor piston is moved in one direction by the spring loaded pump piston and in the other by air pressure from a pipe 17 under the control of a distributing valve 40. Supply to the valve 40 is controlled by a valve 26 opened by movement in one direction of a lever 12 which is pivoted about fulcrum pins 82, 83 and movement in the opposite direction opens a by-pass valve 98. An arm 101 of the lever 12 is clamped to the screwed fulcrum pin 83 which has a finger 100 actuating the valve 98. The air flows through apertures in the portion 38 of the valve 40 and through the passage 45 into the motor chamber 46. The chamber 46 has a vent 49 and when the motor piston reaches the limit of its stroke, a port 54 is uncovered, Fig. 3. Compressed air flows through passages 55, 56 and acts on the portion 40 of the valve to close the inlet, thereby opening the chamber 46 to exhaust via a recess 41 and passages 42. The valves 25, 68 and 98 may be removed by unscrewing the threaded plugs in which they are mounted and the valve 37 removed by unscrewing the plug 36.
Patent GB-854002-A (GB)
Title: Improvements in animal feeding troughs with recharging hopper
IPC: A01K39/012
Filed: 1958-05-19
Abstract: 854,002. Animal feeding appliances. NARAGHI, H. May 13, 1959 [May 19, 1958], No. 15958/58. Class 5(2). An animal feeding trough comprises a trough member 1 with a dished floor 2 and a hopper 6 supported by a wire ring 3 provided with wires 4 which radiate over the trough and are hooked over the outer tip of the trough.
Patent GB-159610-A (GB)
Abstract: 159,610. Haddan, A. J. H., (National Cash Register Co.). Dec. 2, 1919. Cash registers with operating- means; voucher-issuing.-Relates to portable cash registers and comprises improved means for printing totals therein under control of a removable key, the complete action of which is ensured by co-operation of full-stroke and printing mechanism. The machine is differentially set and crank operated, the pinions of the type wheels 19 being always in gear with the setting elements 14, the platen 54 being tripped by a cam 43, and actuated by a spring-controlled lever 45 to print on a voucher strip 61 and a record strip. A resilient pressure roll 67 is releasable by an eccentric 75 for adjusting a new strip when necessary. The type wheels are locked for printing by pawls 107, Fig. 4, of which the tails engage a yoke 111 actuated by pins 113 thereon engaged by projections 115 from a bail 118, Fig. 4, operated by a lever 121, 122 from main-shaft cams 124,127 which also drive a feed pawl 184 for the record strip. The bail 118 also restores the differential element 14, thus adding the item on the totalizer. The latter is mounted on a frame swung on a shaft 140 and having an arm 138, Fig. 15, with a stud 136 for normal actuation to put the totalizer into gear. This is effected by a projection 144 on a pawl 135 pivoted on a main-shaft cam-operated lever 128. A spring 133 keeps the pawl in normal position to effect this. A spring 1401 disengages the totalizer. Printing totals.-Totals are printed by a quarter turn of an inserted key 190, Fig. 13, and a turn of the main crank. The key rocks a disc 193, Fig. 15, the movement of which is limited by a gap 199 and stop pin 200. A short pin 194 on the disc rocks the totalizer-frame arm 202 to put it into gear, after which the differential settings arms are moved as far as they will go, thus setting the totalizer wheels to zero and putting the total on the type wheels. A longer pin 195 on the disc 193 lifts the pawl 135 out of engagement with the pin 136. Full-stroke mechanism.-To prevent withdrawal of the key 190 before the action is complete, ratchet teeth 1193 are provided on the disc 193 to engage a pawl 1194 which holds the disc, which is shaped to lock the key, until a pin 216 on the pawl is struck by a cam-operated lever 210 which also has a nose 213 to strike the pin 194, restore the disc 193 and free the key 190. A single turn only of the main crank is ensured by a toothed snail cam 31, Fig. 8, with nose and stud 39 to engage the ends 35 and 38 respectively of a double catch pawl.
Patent GB-902062-A (GB)
Title: Hammer grinder
IPC: B02C13/31
Filed: 1961-05-03
Abstract: 902,062. Hammer grinder installations. BROYEURS GONDARD. May 3, 1961 [May 4, 1960], No. 15978/61. Class 59. [Also in Group XXX] A hammer grinder installation for grinding domestic refuse, fodder and like material comprises a parallelepipedic tub 5, a drum 14 carrying hammers 15 rotatable in the tub, a semi-cylindrical screen 17 beneath the drum, a vertical chimney 19 surmounting the tub and connected by a hood 21 at its upper end to an adjacent casing 20 provided with an outlet trap door 11, and a charging hopper 8 communicating with the tub through an inlet 25 in one wall of the chimney, the arrangement beng such that ground material passes through the screen 17 and the remainder is deflected upwardly. The ground material falls through the screen 17 to a conveyer 9 and solid grindable material too large to be ground at the first attempt remains, due to its weight, in the tub 5 until it is reduced to smaller pieces, the large but lighter grindable material being raised by centrifugal force and currents of air created by the hammers and carried upwards where it is dispersed by the said air currents and contact with the wall of the hood 21 and falls back into the tub; non-grindable heavier objects, e.g. tins, are flattened between the hammers and screen 17 and projected by centrifugal force towards the hood 21 where they are directed by inertia into the casing 20 to await disposal through the trap door 11. This door may be either pivoted or slidable and operable by hand or motor, and if desired, it can be arranged to be operated synchronously with the operation of a pivoted or slidable shutter 22, Fig. 4, disposed between the chimney 19 and casing 20, so that one is closed when the other is open; such synchronous operation may be controlled by an automatic timing device employing relays or clockwork. A trap door covering the opening 25 between the hopper and the chimney is slidably mounted in guides and can be held at the desired height by means of two bolts engaging holes in the supporting guides and the door itself. In another embodiment, the casing 20 is divided into two vertical compartments by a vertical partition, one compartment, which is adjacent the chimney, extending down to the base of the chimney and there communicating with the latter through a trap door. In operation, the compartment adjacent the chimney will collect and recycle some of the lighter material that has been carried over by the air flow and the outer compartment will collect the heavier material for disposal.
Patent GB-571000-A (GB)
Title: Improvements in and relating to connecting means for ceramic condensers and other electrical components of tubular or cup shape
IPC: H01G4/228
Filed: 1943-09-29
Abstract: 571,000. Couplings. STEPHAN, F. C. Sept. 29, 1943, No. 16986. [Class 38 (i)] A terminal 5 is connected to a hollow conductor such as the interior 3 of a ceramic condenser 1 by means of a resilient member comprising a radially slit dished disc 2 that is compressed between a plate 6 and a nut 9 on the terminal so as to force the rim of the disc into tight engagement with the hollow member 3. Solder 12 may be run into the upturned rim 4 of the disc. The disc may be made up of two similar slit members with the slits staggered.
Patent GB-312642-A (GB)
Title: Improvements in or relating to oil insulated transformers and like electrical apparatus
IPC: H02H5/08
Filed: 1929-05-24
Abstract: 312,642. Associated Electrical Industries, Ltd., (Assignees of Clark, G. D.). May 29, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Transformers.-Relates to alarm and protective arrangements for oil-immersed transformers and like electrical apparatus in which gases are evolved by rapid increase of temperature under abnormal conditions such as a fault in the windings, and consists in supplying heat proportional to load current to a thermally-responsive element normally cooled by the oil but so located in the oil tank that in the event of gases being generated the oil is forced away from the element which then operates to close an alarm or protective relay circuit. In the arrangement illustrated in Fig. 1, the thermally-responsive element comprises a thermometer 10 located within a dome 11 adapted to trap gases rising from the locality of the windings of a transformer in an oil tank 12. The thermometer is subjected to the influence of a heater 14 supplied with current proportional to the transformer load current by a current transformer 16. The indicator 16 of the thermometer is provided with contacts 21 included in the circuit of an alarm or protective device, these contacts being arranged to close in the event of excessive rise in temperature due to the cooling medium being displaced from the dome 11 by the generation of gases under fault conditions. In a modification suited to conditions in which the tank is not completely filled with oil, the thermometer is disposed in a conical baffle located below the surface of the oil.
Patent GB-148038-A (GB)
Title: Improvements in or appertaining to shaping machines
IPC: B23Q5/22
Filed: 1919-06-26
Abstract: 148,038. Mylchreest, T. G., and Blackwell, A. June 26, 1919. Shaping.-In a shaping-machine the ram-supporting surface is in two portions, one h at the front of the bed and the other h<1> at the rear and at a lower level than the first portion. The saddle is provided with downwardly-extending lips e<4>, e<6> fitting over the front portions of the supporting- surfaces, these lips serving to take the thrust on the ram. The ram is reciprocated by an oscillating lever.
Patent GB-1186397-A (GB)
Title: Blasting Agents
Inventor: COOK MELVIN ALONZO
IPC: C06B47/14
Filed: 1967-04-07
Abstract: 1,186,397. Explosive compositions. INTERMOUNTAIN RESEARCH & ENG. CO. Inc. 7 April, 1967, No. 16075/67. Heading C1D. A slurry blasting agent comprises a watersoluble inorganic oxidizing salt, at least 2% by weight of water, sulphur with or without other fuels, and 0-25 to 18% by weight of a watersoluble fluidizing agent which may be a lower alcohol, polyhydric alcohol, alcohol ether, sugar, urea, or low molecular weight amide or amine. The oxidizing salts referred to are ammonium, sodium, and barium nitrates, and ammonium and alkali metal chlorates and perchlorates. Additional fuel may be Al or Mg powder, gilsonite, or powdered coal. Self-explosive sensitizers which may be included are TNT, smokeless powder (which may contain nitroguanidine), RDX, HMX, Composition B, PETN, nitrostarch, tetroyl, EDNA, pentolite, and Ednatol. The preferred fluidizing agents are methanol, ethanol, isopropanol, ethylene glycol, propylene glycol, diethylene glycol, glycerol, formamide, dimethyl formamide, and acetamide. Reference is also made to the addition of sucrose, maltose, dextrose, molasses, ethanolamine, guanidine, and dicyandiamide. To thicken the slurry, guar gum, carboxymethyl cellulose, or starch is added, together with borax or sodium dichromate as a cross-linking agent. To prevent reaction between Al and water, ammonium or alkali metal phosphate is included. The pH of the slurry may be reduced by adding a small amount of nitric acid. The slurry may include entrained air up to 25% by volume.