baber/WOPTO huggingface dataset:
Patent GB-645381-A (GB)
Title: Reciprocating engines
IPC: F16H21/22
Filed: 1948-03-08
Abstract: 645,381. Linkwork for converting reciprocating into rotary motion, TRAHIN, J. H. March 8. 1948, No. 7098. [Class 80(iii)] The reciprocating motion of a piston 16 is transmitted to a crank 15 having a throw greater than half the piston stroke by means of a cross-head 21 connected to both the piston rod 17 and connecting rod 19 through eccentric devices 27, 29. Each of these devices comprise inner and outer eccentrics with arms 35 slidably supported in bearing boxes 37 which are pivotally supported by trunnions 41 on the engine frame 20. The outer eccentrics 27 are rotatably supported in the sliding crosshead 21 which slides between guides 13 whilst the inner eccentrics 29 are on cross pins 31 which are respectively coupled to the piston rod 17 and the connecting rod 19. The arrangement is such that as the piston rod 17 descends the upper pair of eccentrics are rotated relatively to each other and the crosshead 21 by the arms 35 in the pivotal bearing boxes 37 so as to move the crosshead 21 through a greater distance than the movement of the rod 17. A similar action takes place between the crosshead and the connecting rod 19 due to the lower pair of eccentrics to further increase the movement from piston rod 17 which is finally imparted to the crank 15. Either the upper or lower pair of eccentrics 27, 29 could be omitted and the action of only the remaining pair utilized. Specification 577,471 is referred to.
Patent GB-608119-A (GB)
Title: Draft coupling and power steering unit for tractor-trailer combinations
IPC: B62D53/02
Filed: 1946-03-07
Abstract: 608,119. Power steering for vehicles. LETOURNEAU, Inc., R. G. March 7, 1946, No. 7175. Convention date, June 29, 1945. [Class 79 (v)] [Also in Group XXXII] A draft connection between a tractor and a trailer, providing power steering for the combination, comprises a casing 3, circular in plan, borne by trunnions 4, 5 from lugs 6 upstanding from the tractor frame 1 so as to be tiltable about the longitudinal axis of the tractor. An upstanding post 8 is journalled in the housing 3 to rotate within a central bearing sleeve 7 and carries at its upper end a tongue 2 having at its rear means for securing it rigidly to the trailer. Within the casing 3 a bevel-wheel 12 keyed to the post 8 may be rotated to steer the combination by a bevel pinion 14 mounted on a shaft 15 passing through the journal 5 and operated by power means not shown. Specification 592,732 is referred to.
Patent GB-420564-A (GB)
Title: Manufacture of combinations containing polyvinyl compounds
IPC: C08F2/44
Filed: 1934-03-07
Abstract: Combinations of polyvinyl compounds and waxes or wax-like substances are manufactured by mixing the wax or wax-like substance with a monomeric vinyl compound (which term includes any substance containing the group CH2=C<) or a solution thereof and polymerizing the vinyl compound in the presence of the wax or wax-like substance. Vinyl compounds specified are vinyl esters, e.g. vinyl acetate or chloride, esters of acrylic acid and of p  itaconic acid, and styrene, or mixtures of these substances.  As the wax constituent may be used natural waxes, e.g. beeswax, carnauba wax or palm wax, or wax-like substances such as synthetic waxes or substances having similar properties, e.g. ceresin, ozokerite, paraffin or spermaceti, or mixtures of these substances.  Suitable solvents are esters and hydrocarbons.  There may be added to the mixture, before or after polymerization, solvent distributers, e.g. resins, artificial resins, gums or fatty acid phthalides, other plastic materials, e.g. nitrocellulose or cellulose acetate, softening agents, e.g. phthalates, pulverulent or fibrous filling materials, or pigments. The products are suitable as moulding materials, e.g. for the production of sound record discs, for spraycasting, for the production of varnishes, coatings on various articles, films or threads, and for encaustic purposes.  In an example, a solution of vinyl acetate and beeswax in benzene is refluxed with the addition of benzoyl peroxide.  The product, if desired after adding filling materials, may be used for the manufacture of sound record discs, whilst it may be dissolved in a mixture of toluene and butyl acetate to yield a lacquer.  Specification 404,504 is referred to.ALSO:As constituents of coating-compositions may be employed combinations of polyvinyl compounds and wax or wax-like substances obtained by mixing the wax or wax-like substance, e.g. natural waxes, such as beeswax, carnauba wax or palm wax, synthetic waxes, or substances having similar properties such as ceresin, ozokerite, paraffin or spermaceti, or mixtures thereof, with a monomeric vinyl compound, which term includes any substance containing the group CH2=C<, e.g. vinyl esters, particularly vinyl acetate or chloride, esters of acrylic acid or of itaconic acid, or styrene, or mixtures thereof, or a solution thereof, and polymerizing the vinyl compound in the presence of the wax or wax-like substance.  There may be added to the mixture, before or after polymerization, solvent distributers, e.g. resins, artificial resins, gums or fatty acid phthalides, other plastic materials, e.g. nitrocellulose or cellulose acetate, softening agents, e.g. phthalates, pulverulent or fibrous filling materials, or pigments.  In an example, the product obtained by polymerizing vinyl acetate in the presence of beeswax is dissolved in a mixture of toluene and butyl acetate.  Specification 404,504 is referred to.
Patent GB-1360231-A (GB)
Title: Water-insoluble azo dyestuffs
IPC: C09B31/043
Filed: 1972-02-24
Abstract: 1360231 N,N - diethylamino - m - levu - anilide IMPERIAL CHEMICAL INDUSTRIES Ltd 24 Feb 1972 [19 March 1971] 7295/71 Heading C2C [Also in Division C4] N,N - diethylamino - m - levulanilide is prepared by reacting angelica lactone with m-N,N-diethylamino-aniline.
Patent GB-543488-A (GB)
Title: Improvement in or relating to the preparation of resinous composition
IPC: C08H8/00
Filed: 1940-04-23
Abstract: 543,488. Resinous compositions. HERCULES POWDER CO. April 23, 1940, No. 7330. Convention date, Nov. 10, 1939. [Class 95] A resinous composition is prepared by heating a resinous wood, or a wood admixed or impregnated with a resin acid, with sufficient water to submerge the wood, under super-atmospheric pressure and at a temperature of 240‹-330‹ C. until the cellular structure of the wood has disappeared, and then recovering the residue remaining after removal of the water solution. The preferred temperature is from 250‹ C. to 280‹C., and pressures of 400-1,900 lb. sq. inch are specified. The term " wood " covers also ligneous cellulosic grasses and straws, bagasse fibre, peat moss and lignite. The starting material is preferably used in the form of chips or sawdust, and should contain at least 10 per cent. by weight of resin acid. Examples are given.
Patent GB-1507763-A (GB)
Title: Rotary piston machine
IPC: F02B55/04
Filed: 1976-02-25
Abstract: 1507763 Rotary positive displacement fluid machines AUDI NSU AUTO UNION AG 25 Feb 1976 [21 March 1975] 07346/76 Heading F1F In a rotary-piston machine (of trochoidal type, as shown), the piston 9 has a cavity 13 therein with an opening 14 through which coolant is fed in a jet from a nozzle 27 located in a housing side wall 3. The coolant, which also lubricates the bearings 5, 6, 7 is fed by a pump 16 from a sump 17 via passage 19, annular cavity 21, passage 32, valve 30 and passage 29 to nozzle 27 whose outlet 28 is preferably arranged to direct the coolant in the direction of rotation of the piston 9. Valve 30 has a slide 36 acted upon by the coolant pressure, an arm 40 linked to a temperature sensor 45 and an arm 38 linked to an engine throttle control 39 so that the valve 30 allows coolant to pass to nozzle 27 only when the coolant pressure, engine temperature and throttle settings are all above predetermined minimum values. Coolant returns to sump 17 via a passage 34. In a two-piston engine a single nozzle having two outlets supplies coolant to both pistons.
Patent GB-473872-A (GB)
Title: Improvements in or relating to the manufacture of gas masks
IPC: A62B18/02
Filed: 1937-03-12
Abstract: 473,872. Knitted fabrics,; compound sheet materials. SOC. DES PROCEDES ECLA. March 12, 1937, No. 7367. Convention date, March 12, 1936. Drawings to Specification. [Classes 74 (ii) and 140] [Also in Groups V, VI, and IX] A gas-mask is made from a composite sheet formed by placing a knitted fabric on a sheet of rubber and uniting them under pressure. The knitted fabric is preferably formed from reverse twist yarns composed of two or more rovings which are assembled by twisting for a substantially equal number of turns but in a reverse sense to that of the individual twist of the rovings. The fabric may also be knitted with relatively loose loops and treated in unstretched condition with a swelling or shrinking agent which, in the case of cotton fabric, may comprise a caustic soda lye. The fabric may be impregnated with rubber or natural or synthetic resins and may be treated with an adhesive such as rubber solution.
Patent GB-180453-A (GB)
Title: Improvements in and applicable to lathe headstocks and members performing like duties
IPC: B23Q1/70
Filed: 1921-03-08
Abstract: 180,453. Smith, F. H. March 8, 1921. Turning; headstocks; spindles. - The two heads of a headstock in a lathe, drilling or milling machine are made adjustable as to distance by screws to take up the wear of a double-coned spindle &c. The headstock shown in Fig. 1 has the head 2 only adjustable along a pair of parallel bars 3 to which the head 1 is secured by a pin or bolt 4. The adjustment is effected by a screw 6. In the modification shown in Fig. 2 both heads are movable after the removal of the pin 4, the movement being effected by a nut 15 and right and left-hand screws.
Patent GB-140104-A (GB)
Title: Improvements in and relating to the control of drying processes in drying plants
IPC: F26B25/22
Filed: 1920-03-11
Abstract: 140,104. Crida, G. March 11, 1919, [Convention date]. Apparatus fitted to drying-apparatus.-In apparatus for controlling the progress of a drying operation, the admission of heat is regulated automatically in accordance with the variation in loss of weight of a given amount of the material at any stage of the process from the desired loss of weight at that stage. As shown, the material is contained in a vessel 2 suspended from one arm of a balance within the drying-chamber, and a cord 3 transmits the movements of the arm 5 to a pointer 6 through an eccentric disk 9 keyed on the spindle of the pointer; a weight 8 connected with the pointer holds the cord taut. A style on the pointer marks a paper band 11 which is slowly unwound from a drum driven, for example, by clockwork. The drum also carries toothed wheels engaging rack bars 15 forming a frame which moves vertically in guides 16<1> and carries electric contact strips 17, 17<1> between which a pin on the pointer moves. This pin is connected by a wire 19 with the common point of the windings of a reversible electromotor; the strips 17, 17' are connected by wires 21, 21' with points connected with the forward and reverse running of the motor, which actuates the heat-controlling device, through a connexion which is broken when this device reaches either extreme position. Automatic switches may also be provided which stop the motor after a given number of revolutions in either direction have been completed. The strips 17, 17<1> are shaped, in accordance with the rate at which they .travel, so that when the rate of drying is at each stage that desired the pin on the pointer remains out of contact with the ships. When the drying is either faster or slower, the position of the pointer will be altered, bringing the pin into contact with the strip 17 or 17<1>, causing the motor to move in the required direction to regulate the heating of the drying apparatus accordingly.
Patent GB-139040-A (GB)
Title: Improved construction of splash or mud guard for wheels of road vehicles
IPC: B62D25/18
Filed: 1919-03-25
Abstract: 139,040. Porter, J. J. March 25, 1919. Lateral-splash guards.-The invention consists in an improved construction of the type of mudguard described in Specificafions 4825/07, 23123/11, 9705/13, and 5429/14. A stud N fitted to the axle-cap of the wheel is threaded through the enlarged part M of a slot L formed in a plate A, which is supported by a chain C and spring B from the ordinary mud-guard R, or a bracket, and carries at its lower end a hinged plate D normally held in the same plane as the plate A by means of a spring G. This spring is pivoted at K to the plate A and is provided with a turn-button H which engages with a slot J in the plate D. The lower part of the plate D may carry a brush, or an apron E of chain-mail protected by bottom plates F. To prevent the plate A from riding too far up on the stud N, a pivoted bar P carries a slotted bearing-plate Q which can be adjusted so that its upper edge engages with the slot N. This bar is swung outwards from the plate A when the mudguard is being fitted to the wheel. The whole guard is readily detached and can be folded up into a small compass when out of use.
Patent GB-1130128-A (GB)
Title: Drum construction for helical scan tape recorder
IPC: G11B15/61
Filed: 1967-02-16
Abstract: 1,130,128. Head drums for helical scan recorders. RADIO CORPORATION OF AMERICA. 16 Feb., 1967 [23 Feb., 1966], No. 7551/67. Heading G5R. A drum for use in a helical scan magnetic tape recorder of the type where the tape passes over a rotating drum carrying at least one magnetic head, comprises a cylindrical portion 54 joined to a frusto-conical portion 53. The arrangement is such that the air bearing formed between the tape and drum is more uniformly distributed over the tape width since air carried by the frusto-conical portion may more easily enter the gap between the upper part 39 of the tape and the drum than in conventional, cylindrical drum arrangements.
Patent GB-398511-A (GB)
Title: Device for cleaning the hearths of baking ovens
IPC: A21B1/00
Filed: 1932-03-15
Abstract: 398,511. Brushes. S€NGER, W., 47, K÷nigstor, Cassel, Germany. March 15, 1932, No. 7637. [Class 19.] A device for cleaning the hearths of baking ovens comprises roller brushes 8, 9 fitted to a tubular handle 1 driven by a motor 2 characterized in that a Cardan joint 4 is interposed in the shafting between the motor and bevel gears 5, 6. The brush carrier 7 is spring- mounted at 10, 11. The springs are connected at one end to holders 12, 13 on the handle and to links 14, 15 connected with the carrier spindle 7. Vertical movement of the brushes is prevented by two cover plates 16 &c.
Patent GB-660302-A (GB)
Title: Protective wrapper for filamentary packages
IPC: D21H13/06
Filed: 1949-03-23
Abstract: 660,302. Yarn packages. AMERICAN VISCOSE CORPORATION. March 23, 1949 [July 10, 1948], No. 7975/49. Class 94(i) [Also in Groups VIII and IX] A cake of yarn, e.g. rayon, is wrapped prior to liquid treatment in a tubular wrapper 2 formed from a thin flexible sheet of permeable material, e.g. paper or thin felt, coated on one or both sides with regenerated cellulose (see Group VIII). When a wrapped cake of rayon is liquid treated and dried, the wrapper shrinks with the rayon during drying, acquiring a crepe effect as at 7 and remaining conformed to the surfaces of the cake.
Patent GB-652304-A (GB)
Title: Improvements relating to apparatus for hardening saw blades
IPC: C21D9/24
Filed: 1948-03-17
Abstract: 652,304. Conveyers. ILARDUYA, L., and LARBURU, H. March 17, 1948, No. 8007. Convention date, March 17, 1947. [Class 78 (i)] [Also in Group II] In an apparatus for hardening saw-blades, the blades are manually fed on to a chain conveyer 8 from which they are transferred by a wheel D to clamps 2 mounted on discs 1 rotating on a shaft 10. The wheel D is synchronized with the rotation of the discs by a cam 7 and a rod 25.
Patent GB-1442900-A (GB)
Title: Ground fault interrupter circuit with excited secondary winding on differential transformer
IPC: G01R27/18
Filed: 1974-02-21
Abstract: 1442900 Protective devices AMF Inc 21 Feb 1974 [23 April 1973] 8010/74 Heading H2K A ground fault interrupter circuit comprises a differential transformer 22 having two primary windings wound in a balanced relationship and formed by the live and neutral lines respectively of the power distribution system to be protected, and a secondary winding 24 coupled to an operational amplifier, the arrangement being such that under normal conditions the flux components in the transformer core due to the primary windings cancel allowing the secondary winding 24 connected between live and neutral lines to supply an input to the operational amplifier which controls silicon controlled rectifiers SCR1 and SCR2 to retain circuit breaker contacts 18 shut, but under ground fault conditions the out of balance flux opposes the flux produced by the secondary winding and the input to the operational amplifier 27 ceases so that the silicon controlled rectifiers cause the circuit breaker contacts 18 to open to break the live line. For greater sensitivity the primary windings of the differential transformer may be multiturn, Fig. 2, not shown.
Patent GB-561582-A (GB)
Title: Method of making lock nuts
IPC: B21K1/70
Filed: 1942-07-23
Abstract: 561,582. Making nuts. THOMPSON, A. H. July 23, 1942, No. 8016/43. Divided out of 561,547, [Group XXV]. [Classes 83 (ii) and 83 (iii)] Self-locking nuts of the type described in Specification 561,547 are stamped from sheet metal, an upturned flange 9 being produced from the metal at the centre. The blank is shaped as shown in Fig. 1, the tongues 12 are bent upwards at the dotted lines and the parts 11 are bent also at the dotted lines, superposing the ends of the tongues on the edge of the flange 9. Tapping.-The blank is then placed in a jig C, Fig. 3, when the tongues are held between lugs c<2>, c<3> whilst the flange and tongues are tapped with a continuous thread.
Patent GB-330310-A (GB)
Title: Improvements in or relating to photographic apparatus
IPC: G03B17/53
Filed: 1929-03-12
Abstract: 330,310. Photomaton Parent Corporation, Ltd., and Dawson, B. March 12, 1929. Prisms. - Lateral reversal of the image, in automatic photographic apparatus is avoided by a prism mounted in front of the lens so that the path of the rays before and after passing through the prism is the same. The prism C is supported on a platform A adjustable by wing nuts and bolts A2, B1, and shielded from extraneous light by a hood D.
Patent GB-1070235-A (GB)
Title: Improvements in and relating to fluid pressure control valves
Inventor: SEATON GEORGE BENJAMIN
IPC: F15B21/041
Filed: 1963-02-28
Abstract: 1,070,235. Fluid filters. AUTOMOTIVE PRODUCTS CO. Ltd. Feb. 28, 1964 [Feb. 28, 1963], No. 8106/63. Headings BID and B1T. [Also in Division F2] A fluid pressure control valve for use with two fluid filters 19, 20 arranged to operate in parallel and connectable to a common fluid system for filtering the fluid in the system comprises a valve body 1 adapted to provide a connection between the fluid system and the two filters, a first movable valve member 11 arranged in the body in the input to the filters and manually operable from a neutral position to one or other of the two positions to interrupt the flow to one or the other of the said filters and a second movable valve member 8 arranged in the body in the output from the filters, so as to be sensitive to the fluid pressures on this side and be displaceable from the neutral position by a pressure drop in one of said filters to throttle the flow of fluids through said filter and permit an increase in the flow through the other filter. Fluid to be filtered passes through an inlet not shown into a bore 3 and is directed by the valve member 11 through one of the valve seats 6, 7 into one or both of the filters 20, 19. The fluid leaves the filter through valve seat 4 or 5 into a bore 2 containing a ball valve 8 and through outlet 10 back into the fluid system. The piston valve 11 has a groove 14 into which a pin, controlled by a handle fits. By moving the valve onto one of its seats 6 or 7, flow is only permitted through the other filter and the first can be removed for overhaul. The valves are carried on lugs in the bores. In a modification, the piston valve 11 is fitted with lugs and slides in a smooth bore whilst the ball valve 8 is replaced by two valve members urged apart by a compression spring.
Patent GB-1435644-A (GB)
Title: Device for emptying a bunker for bulk material
IPC: B65G29/00
Filed: 1974-02-22
Abstract: 1435644 Discharging hoppers F TESKE and L TESKE 22 Feb 1974 [28 Dec 1973] 8135/74 Heading B8S A device at the base of a bunker for controlling emptying of adhesive and/or slowly flowable bulk material from the bunker, comprises a bucket wheel having buckets 6 in a housing 1, and rotatable above the bottom of the housing by a drive motor, the bucket wheel in its stationary position partially closing the lower end of the bunker when a bucket 6 is located above an evacuating opening 4 provided eccentrically in the bottom of the housing, and the buckets which are driveable by a stepping mechanism being adjustable to be located stationary substantially externally of the evacuating opening 4. The gap between any two adjacent buckets 6 must be at least approximately as great as the evacuating opening 4 to provide for gravitational free flow of the material through the opening 4. The bucket wheel is mounted at the top of a shaft depending through a sealed aperture in the housing base, and carrying a ratchet wheel 12 below the base, for driving engagement with a pair of diametrically opposed, hydraulic ram operated pawls 13, the rams 15 being either driven together for intermittent bucket wheel motion or driven alternately for continuous bucket wheel motion. The rams are arranged so that the buckets may be stopped over the opening 4 to impede material flow if necessary, the buckets normally sweeping the material towards the opening. Movement of the bucket wheel is controlled by signals from flow sensing devices associated with a continuously moving conveyer to which the material is delivered from the opening 4.
Patent GB-380732-A (GB)
Title: Improved hand-guard for automatic fire arms
IPC: H01G4/224
Filed: 1932-03-18
Abstract: 380,732. Automatic guns. FROMMER, R. VON, 158, SoroksÔri ut., Budapest. March 18, 1932, No. 8162. Addition to 361,542. [Class 119.] The hand-guard 2 claimed in Claim 2 of the parent Specification is provided with sharp edges, points, or teeth 1 to ensure in a more certain manner that the fingers of the marksman are not injured by the recoiling parts 3 of the breech mechanism. Saw-teeth in the form of pointed pyramids are preferably provided.
Patent GB-874424-A (GB)
Title: A method of producing vacuum-tight connections between a ceramic body and a metal member
IPC: C04B37/02
Filed: 1958-03-14
Abstract: 874,424. Ceramic-to-metal seals. LICENTIA PATENT-VERWALTUNGS G.m.b.H. March 14, 1958 [March 15, 1957], No. 8325/58. Class 36. [Also in Group XXII] In a method of producing vacuum-light connections between ceramic tubes and metal sleeves by filling the space between the tube and sleeve by solder, the solder flows over titanium shortly before it reaches the connecting gap. When making a bushing for the leadin conductor of a mercury-arc rectifier, a metal cover 2 and a metal sleeve 3, which may have shrunk-on rings 16, 17 are supported relative to the ceramic ring 1 by a two-part graphite ring 4 whose position may be adjusted by eccentric studs 7. Solder is melted in reservoirs 8, 9 by a furnace 10 and flows through valves 19 to the interspaces 5 over titanium rings 18. The process is preferably carried out in a vacuum electric furnace. Specification 735,929 is referred to.