baber/WOPTO huggingface dataset:
Patent GB-173495-A (GB)
Title: Improvements in or relating to hand combination telephonic apparatus
IPC: H04M1/03
Filed: 1921-12-09
Abstract: 173,495. Western Electric Co., Ltd., (Assignees of Curtis, A. S.). Dec. 24, 1920, [Convention date]. Telephone hand sets.-Relates to a microtelephone set in which highly efficient or sensitive transmitters and receivers are used, but nevertheless, howling is eliminated under the usual conditions cf operation. The Specification states that the howling which takes place is governed by the relation of the " vibration ratio " to the " transfer impedance " through the electrical circuit. The " vibration ratio " is defined as the ratio of the voltage generated in the transmitter, due to mechanical and acoustical vibrations communicated to ii by the receiver, to the receiver current causing such vibrations. The " transfer impedance " is the ratio of the voltage generated in the transmiiter to the current produced by it in the receiver. When the vibration ratio is equal to the transfer impedance, sustained howling will take place and a decrease of the vibration ratio will result in a corresponding decrease in the howling. Ic order to make the vibration ratio low, a cross-section having a large radius of gyration, or a material with a high ratio of modulus of elasticity to density, or a combination of the two, is employed. In order to prevent mechanical resonance in the walls of the instrument cases, they are made relatively thick and rigid. A handle of the I-beam type fulfils the requirements for an ideal hand set, but, owing to the difficulty in grasping and holding such a handle, the modification shown in Fig. 3 is adopted. The casings 2 and 3 are mounted on the handle 8 whose crosssection is reduced uniformly until the projections 9 and 10 are reached. The cross-section of the handle is shown in Fig. 4, in which the portions 4, 5 of the lower flange of the ideal I-section are positioned at 6, 7. Moulded insulating materials are employed for the handle and casings, and metallic conductors 11, 12 are embedded in the handle in order electrically to connect the circuits in the casings.
Patent GB-303002-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B19/14
Filed: 1928-11-13
Abstract: 303,002. Sulzer FrÞres Soc. Anon. Dec. 24, 1927, [Convention date]. Cylinders receiving liquid fuel. - In an engine of the kind in which the cylinder head b is provided with two preliminary combustion chambers c each communicating with the combustion space d through a number of narrow passages, the passages f are so arranged that the fuel injected from each chamber is sprayed over one particular section of the combustion space into which section no fuel is introduced from the other chamber, and so that the jets of fuel issuing from the chambers co-operate to impart a rotary movement to the contents of the combustion space.
Patent GB-835637-A (GB)
Title: Pigment dispersions
IPC: C08K5/00
Filed: 1957-10-24
Abstract: An organic pigment dispersion is made by kneading an aqueous paste of an organic pigment with a polymeric N-vinylpyrrolidone or a polyvinyl alcohol, the ratio of organic pigment to polymer being at least 1 : 1 and not more than 10 : 1.  A large number of organic pigments are specified.  The polymeric N-vinylpyrrolidones used are those having the formula <FORM:0835637/IV (a)/1> where R is hydrogen or methyl, R1 is hydrogen, methyl or ethyl and n is a number sufficient to give the polymer a molecular weight of 500-200,000.  The polyvinyl alcohols used are of the p  water-soluble type having in a 4% aqueous solution at 20 DEG  C. a viscosity of 10-70 centipoises.  The dispersions when either wet or dry may be used for pigmenting oleoresinous or water systems, e.g. styrene-butadiene, acrylic or polyvinyl acetate latices.
Patent GB-466283-A (GB)
Title: Improved chimney pot
IPC: F23L17/02
Filed: 1935-11-30
Abstract: 466,283. Chimney tops. WATSON, T. Nov. 30, 1935, No. 33266. [Class 25] A chimney pot comprises a multi-sided head portion 3 with openings 8 in some only of its sides turnably mounted on a stem 2 so that during erection of the pot the head may be set with the imperforate sides presented towards the most difficult winds. The head is surmounted by a multi - sided cap 4 having openings 11 in some only of its sides. The top of the cap is closed except for two slots 13 opposite to the open sides. The head is mounted on the stem by means of a depending flange 5 which rests on a rib 7 formed in the stem. Alternatively a ring 6 may be interposed between the flange and the rib so as to raise the head to uncover lower openings 10. Baffles 9 are arranged inside the head behind the openings 8.
Patent GB-648405-A (GB)
Title: Improvements in or relating to bottle bobbins for use in textile manufacture
IPC: B65H75/30
Filed: 1947-12-18
Abstract: 648,405. Bobbins, BARRACLOUGH, A. Dec. 18, 1947, No. 33378. [Class 120(iii)] A bottle bobbin comprises a hollow sheath 1 having an internal boss 2 at its upper end, a driving base 4 and a tubular tie member 7 retaining the driving base in position by conical nuts threaded upon the ends of the tie 7 engaging conical recesses in the driving base and boss respectively. The driving base may be provided with driving slots or recesses 6 to engage projections or dogs of a driving member. The bobbin may be constructed of aluminium, aluminium alloy, or synthetic resin.
Patent GB-1260599-A (GB)
Title: A method of making internal combustion engine pistons
Inventor: PARKES JEFFREY GEORGE ERNEST
IPC: B23K15/00
Filed: 1970-07-10
Abstract: 1,260,599. Making pistons; welding by fusion. FORD MOTOR CO. Ltd. 10 July, 1970, No. 33527/70. Addition to 1,181,499. Headings B3A and B3R. A method of making a piston 10 as claimed in claims 2-4 of parent Specification, in which the crown 11 is formed from a powdered metal using a sinter forging process and electron beam welded to the separately formed skirt 12. The crown is formed from aluminium alloy powder and the skirt is preferably an aluminium alloy pressure die casting but may be a side forging.
Patent GB-1115842-A (GB)
Title: Improvements relating to the joining together of glass plates
IPC: C03B23/203
Filed: 1965-08-05
Abstract: <PICT:1115842/C1/1> <PICT:1115842/C1/2> A method of joining together glass plates in which a layer of frit is applied between the surfaces to be fused comprises irradiating the frit through at least one of the glass plates by a high-intensity light beam of a wavelength to which the glass plates are transparent but which is absorbed by the frit such that the frit fuses and effects the joint.  A tank for use in optical apparatus is formed from quarts glass plates 6a, 6b, 6c, 6d.  In use plates 6c, 6d will be parallel to the path of a light beam 8 the distance D between the plates 6a, 6b being the most important. A layer of frit 7 is placed between the end surfaces of plates 6a, 6b and the inner surfaces of plates 6c, 6d in the plane parallel to said latter plates.  Plates 6a, 6b are clamped against a gauge or gauges 13 during joining so that the distance between plates 6a, 6b is accurately maintained.  A laser beam L is then directed through either plate 6c or 6d and is absorbed only by the frit layer 7 which fuses and joins the plates together.  In practice the tank is controllably conveyed on a trolley below a laser source.  So that the frit may absorb the laser beam it contains from 1% to 10% of one or more of the groups of oxides depending upon the light beam wavelength (a) Mn2O3, NiO, Cr2O3, CoO; (b) B2O3, PbO, ZnO, Al2O7, MgO, BaO, M2O, CeO2, V2O5, V3O8; (c V2O5, CuO, Fe2O3, CoO, FeO, NiO.  High intensity light beams other than laser beams may be used.
Patent GB-172215-A (GB)
Title: Medical percussion hammer
IPC: A61B5/11
Filed: 1920-11-27
Abstract: 172,215. MacLeod, H. W. G. Nov. 27, 1920. Anthropometrical appliances; hearing appliances. - A percussion hammer for diagnostic purposes, such as sounding the lungs and testing tendon jerk of the knee &c., comprises a malletshaped head A of metal, vulcanite, or wood, formed with convex end surfaces B, and circumferential ridges C, and fitted with a flexible handle E of whalebone, vulcanite, or metal, and of circular or oval section. In the case of wooden or vulcanite heads, a metal core L, Fig. 7, held in place by wooden or vulcanite plugs K, may be employed to give greater weight. The instrument may be used without accessories, or with a longitudinal rubber ring Q, Fig. 2, or with rubber capsules F, Fig. 3, padded with cotton-wool and held in place by rubber rings G. The cotton-wool pads in the capsules F may be moistened with hot and cold water respectively for testing the sensibility of the skin to heat or cold, the rounded end R of the handle may be used for testing the reflex of of the sole of the foot and other superficial reflexes.
Patent GB-992018-A (GB)
Title: Tip and splash-proof galvanic cell
IPC: H01M2/12
Filed: 1961-09-20
Abstract: 992,018. Electric batteries. ACCUMULATOREN-FABRIK A.G. Sept. 20, 1961 [Nov. 25, 1960], No. 33695/61. Heading H1B. The electrolyte is prevented from spilling by a guard member la that extends to the sides of the accumulator leaving a gap of not more than 0À3 mm. Gases are vented through holes 5 and a removable plug. The space above the separators 6 is sufficient to accommodate all the electrolyte.
Patent GB-1279862-A (GB)
Title: Flyer spindle for double-twist flyer
IPC: D01H1/10
Filed: 1969-07-04
Abstract: 1279862 Double twist spindle MASCHINENFABRIK MEMMINGEN ESPANOLA SA 4 July 1969 [8 July 1968] 33919/69 Heading DID  An outflow double-twist spindle comprises a rockable frame or housing 1, 2 carrying in ball bearings 6, 8 a rotatable spindle 7 which is longitudinally fixed and a further spindle 9 which is longitudinally adjustable. A cop 5 is clamped between members on spindles 7 and 9 spindle 9 being adjusted longitudinally to effect the clamping. The yarn or yarns to be twisted pass over pulleys 18, 19, 20, 21, 22, 23, 24, 25, 26 to the draw-off means, the pulley 21 being deflectable by increasing yarn tension. Movement of pulley 21 operates a lever which adjusts a hysteresis brake 13 acting on pulleys 11, 12 through which the spool is driven so that the tension in the yarn is maintained constant. Spindle 9 is threaded in a bowl 10 which is manually operable to effect longitudinal adjustment of the spindle.
Patent GB-1132668-A (GB)
Title: Acrylonitrile copolymers containing sulphonic groups
Inventor: SZITA JENO
IPC: C08F220/46
Filed: 1967-07-24
Abstract: 1,132,668. Sulphoacetamide derivatives. FARBENFABRIKEN BAYER A.G. 24 July, 1967 [28 July, 1966], No. 33925/67. Heading C2C. [Also in Division C3] Compounds of the formula wherein R and R<SP>1</SP> each represents H or alkyl having up to 4 carbon atoms and X represents H, NH 4 , alkali metal or organic substituted ammonium, are prepared by reacting an (alk)- acrylamido - N - methylol methyl ether with chloroacetamide or an N-alkyl derivative thereof, and then reacting the product with a salt of sulphurous acid. The free acid form of the product can be liberated by treating the salt form with a mineral acid. Compounds of the above formula which are exemplified are the sodium, potassium and lithium salts of N- (methacrylamidomethyl)-sulphoacetamide and the lithium salt of the corresponding acrylamido-compound.
Patent GB-1154209-A (GB)
Title: Improved Electroviscous Compositions
IPC: C10M171/00
Filed: 1966-07-28
Abstract: 1,154,209. Electroviscous composition. TEXTRON ELECTRONICS, Inc. 28 July, 1966 [2 Aug., 1965], No. 34039/66. Heading C1A. [Also in Divisions C3 and C5] An electroviscous composition comprises (a) a finely divided non-conductive solid with a mean particle diameter #0À1 Á, (b) a hydrogenbonding acid, (c) a hydrogen-bonding base, and (d) a low dielectric liquid vehicle, the amount of the acid and of the base each being at least 1% by wt. of the solid and the total amount of the solid, acid and base not exceeding 35% by wt. of the composition, said composition having an effective viscosity, when subjected to an electric field of 100 volts per mil at a shear rate of 1000 sec<SP>-1</SP>, of at least 100 times its viscosity in the absence of the field. The liquid vehicle may be a mineral or fatty oil, xylene, CCl 4 , a fluorocarbon or a silicone oil. The non-conductive solid may be pyrogenic silica or corundum. The hydrogenbonding acid may be acetic, formic, lactic, malic, malonic, octanoic, oxalic, pyruvic, or trichloracetic acid. The hydrogen-bonding base may be an alcohol, amide, amino, ketone, phenol, pyridine or NH 4 OH. The electroviscous composition may be prepared by developing an electric charge on the particles of the non- conductive solid, coating the particles with the acid and base and dispering the coated particles in the liquid vehicle. The charge may be developed by passing a charged probe through the insulated solid
Patent GB-1439016-A (GB)
Title: Blowout preventers
IPC: E21B33/06
Filed: 1973-07-17
Abstract: 1439016 Wells &c HYDRIL CO 17 July 1973 34086/73 Heading E1F In a blowout preventer comprising a housing 10 and rams R, the rams carry yieldable seals 30 and anti-extrusion means 31 preventing upward extrusion of the material of the seals when the seals are in sealing position. A ram includes a carrier 20, a top plate 24 connected to the carrier by cap screws 26, a yieldable member 21 between the plate and carrier, a base plate 25 having a projection 25c engaging the carrier, and replaceable means including a seal 30 and the means 31. The means 31 comprises segments 35 moulded to the seal and segments 40 each overlapping a pair of segments 35, the segments 40 being connected to be moved by the segments 35. As the rams are brought together to seal about a pipe P the top and base plates first engage and further movement of the carriers forces the seal and the inner ends of the segments into engagement with the pipe. The segments may be designed so that the ram acts as a "blind ram". A lower anti-extrusion means 32 may be fitted, the anti extrusion means being effective when a non circular member such as a kelly is engaged, or when the pipe is engaged at a joint.
Patent GB-1175788-A (GB)
Title: Improvements relating to Gas Burners
IPC: F23D14/06
Filed: 1968-07-18
Abstract: 1,175,788. Gas burners. COMPANION HEATERS PTY. Ltd. 18 July, 1968 [25 July, 1967], No. 34154/68. Heading F4T. A gas burner fabricated from sheet metal comprises a base member 1 and a cover member 2 which when assembled define a housing for a burner head 10, and also define a gas duct 8 for connection with a gas supply to direct gas therefrom to burner head 10. As shown, the two members 1 and 2 have annular portions to define the housing, and lateral extensions to define the duct 8, and are united by turning peripheral flange portions 5 (and 5a) on cover member 2 over the periphery of base member 1. The upstream extremity of gas duct 8 is provided with an aperture 11 to locate a gas jet and may include one or more air ports 12 to permit air to mix with the gas directed through the duet 8 by the gas jet.
Patent GB-579111-A (GB)
Title: Improvements in machine guns
IPC: F41A3/40
Filed: 1935-08-16
Abstract: 579,111. Machine guns. ADAMS, E. S. R., and WILLMOTT, W. Aug. 16, 1935, No. 34233/36. Divided out of 579,110. [Class 92 (ii)] A gas piston-rod 2 or other recoiling portion of a machine gun is held in cocked position, with the breech open, by a pivoted sear .11 which is mounted on a spring-controlled slide 23 and is controlled by a stationary sear ramp 27 which ensures the sear moving into full engagement with the bent 12. The invention is shown applied to a machine gun as described in Specification 579,110. The sear is released by a pivoted trigger 28. The trigger mechanism is mounted as a unit 19 attached by tongue and groove connections to the gun body 4 and keying with the sliding back cover 16 housing the buffer 17. The guide 15 for the return spring 14 is anchored by a bayonet joint in the screw cap 21 on the back cover.
Patent GB-1328307-A (GB)
Title: Apparatus for preventing successive jamming of copy sheet  in copying apparatus
IPC: G03G21/00
Filed: 1971-07-21
Abstract: 1328307 Feeding sheets MITA INDUSTRIAL CO Ltd 21 July 1971 [21 July 1970] 34261/71 Heading B8R Copy sheets 1, Fig. 1, are separated from a pile by a roller 2 operated through a clutch 3 electrically actuated, and fed by continuously rotating roller pairs 11a-11e through a copying machine past one or more detectors 13 which deenergize the clutch when a previous sheet is present in the machine. There may be two detectors each comprising a lever 17 or 17<SP>1</SP>, Fig. 2d, movable upwardly by a sheet 1 to open a switch S 1 in the clutch circuit, or to close such a switch to energize a relay which then opens a switch in the clutch circuit. The detector may be photo-electric.
Patent GB-1016221-A (GB)
Title: Improvements in or relating to strainers for fluids
IPC: B01D27/00
Filed: 1962-09-07
Abstract: 1,016,221. Filters. R. J. STEVENS. Nov. 27, 1963 [Sept. 7, 1962], No. 34262/62. Heading BID.  A tubular filter comprises a tube I open at one end (1B) only (Fig. 1, not shown), having apertures 2 which communicate with apertures in a pack of laminµ 2A, wrapped round tube 1, adjacent laminµ being spaced apart to provide flow passages 3 extending parallel to to the tube axis, whereby fluid is filtered. Fig. 8 shows how outermost lamina 3A of the pack has its aperture 3B staggered from apertures 2 in tube I so that fluid is constrained to flow through passages 3 between laminµ. Laminµ may have certain bridges between adjacent apertures thickened by electroplating, whereby adjacent laminµ are spaced (Figs. 5 and 6, not shown), or alternatively alternate laminµ may have apertures of different shape (Figs. 4 and 7, not shown). Laminµ have holes engaging pegs 2H on tube 1, and the tube and laminµ are enclosed in a casing (Fig. 3, not shown). The ends of the laminµ are joined by bolts (Figs. 3 and 10, not shown). Fluid flow may be "inside to out" or "outside to in" through the laminµ and tube 1. A piston 5 may be used to drive cleaning fluid out through apertures 2 (Fig. 11, not shown), or the piston may have an annular groove 5B communicating with bore 5D, whereby cleaning fluid is delivered to each aperture 2 in turn as piston 5 moves along tube 1 (Fig. 12, not shown).
Patent GB-1280691-A (GB)
Title: Method of and apparatus for drying moist thread, for example glass thread
IPC: D01D7/00
Filed: 1969-07-08
Abstract: 1280691 Drying thread COMPAGNIE DE SAINT-GOBAIN-PONT-A-MOUSSON 8 July 1969 [8 July 1968] 34287/69 Heading F4Q Moist threads, e.g. glass threads, are dried during winding on to a rotating bobbin by radiant heat directed at the turns of thread. As shown filaments 2 leaving a spinning die 1 pass through sizing device 6, are formed into thread 3 and dried by infra-red radiator 5 while being wound on to bobbin 4. The irradiation is preferably controlled so that the threads have a desired residual moisture content by adjusting the distance or power output of the heater. The heater may have a slot parallel to the bobbin axis so that only the circumferential surface is heated. The heater may be mounted on the ring rail in the case of a vertical bobbin (Fig. 2 not shown). Thread being wound off one bobbin on to another may also be heat irradiated as it is being wound off (Fig. 3, not shown).
Patent GB-794847-A (GB)
Title: Improvements in selector control mechanism for power take-off mechanism
IPC: G05G7/02
Filed: 1955-12-01
Abstract: 794,847. Toothed gearing; locking rods and levers. WHITEHEAD, C. E. Dec. 3, 1956 [Dec. 1, 1955], No. 34386/55. Classes 80 (1) and 80 (3). In a power take-off mechanism in which a pinion 1 is adapted to be moved axially into and out of engagement with a mating pinion by means of a pin 6 or fork, on an arm 4 of an actuating spindle 5, engaging in a groove 7 of the pinion, the pinion is adapted to be locked in its two positions by means of a spring-loaded plunger 16 engaging in one of two holes 14 in a plate 11 secured to the spindle. The spindle 5 also carries with a certain amount of rotary lost-motion a control lever 8 with a sleeve 9. An arm 22 on the sleeve moves between two stops 15 on the plate 11 and has inclined portions 23 on each side for co-operating with the rounded end 19 of plunger 16. Thus, when control lever 8 is rotated to engage or disengage the pinion 1 the arm 22 first depresses the plunger 16 and then engages a stop 15 to, cause the plate 11 to ride over the plunger and the spindle 5 to be rotated to move the pinion. The plunger 16 then engages the other hole 14 to lock the pinion in its new position.
Patent GB-194030-A (GB)
Title: Means for transferring sheets from one mechanism operating thereupon to another mechanism for operating thereupon, and for timing the sheets in transit between said mechanisms
IPC: B41F21/00
Filed: 1921-12-21
Abstract: 194,030. Haddan, R., (United Printing Machinery Co.). Dec. 21, 1921. Sheet-registering devices; carriers; guides.- Sheets are transferred from one machine, e.g. a printing-machine, to a second, e.g. a bronzing- machine by a conveyer which is driven faster than the first machine, and are passed to other conveying means whereon the sheet is first retarded, then stopped, and finally released by the action of feeler mechanism which causes the sheet to pass on to a third conveying mechanism driven slightly faster than the second machine, the sheet being again retarded and fed at the correct time. The invention is especially applicable to two machines driven independently, and the second machine is driven slightly faster than the first, so that the sheets from the first machine do not accumulate. The second machine however makes one idle revolution occasionally. The sheets pass from the impression cylinder of the printing-machine to grippers e on a chain E, which finally deposits the sheets on a set of tapes D. From the tapes D the sheets pass alternately to a set of tapes C or B, being directed thereto by a cam-operated switch 2. The tapes C, B, are arranged in a pivoted frame 3 situated between the frames of the printing-press and of the bronzing-machine W. As the sheets are travelling along the tapes C, or B, they are acted on by retarding-devices 4<a>, 5<a>, which are oscillated between the positions shown by full and dotted lines by cams on a shaft 2e driven from the shaft of a roller R<3> over which the tapes E pass. The sheets are thus retarded as they approach stops 7a, or 8<a>, which arrest the sheets before they pass on to the final conveying tapes A. The tapes A are driven from the bronzing-machine at a slightly greater periphal speed than this machine, and the tapes B, C, also move at the same speed. Before the sheets are taken by the grippers w of the bronzing machine, they are slowed down by an oscillating arm 9<a> which finally allows the sheets to pass to the machine at the correct time. The stops 7<a>, 8<a>, which arrest the sheets on the tapes C, B, are actuated to release the sheets by feeler means controlled by the presence of the sheet. After a certain number of revolutions a sheet arrives too late to be released, and the machine W then makes an idle revolution. The stops 7a, 8<a> are normallly raised by arms 7g, 8g of oscillating levers which are oscillated in unison by a cam 8l and lever and link mechanism. The feelers release latches 7d or 8d and cause fingers 7f, 9f, to engage notches on thee levers 7g, 8g, and thus arms 7, 8 are rotated to raise the stops 7<a>, 8<a>.