baber/WOPTO huggingface dataset:
Patent GB-1495783-A (GB)
Title: Voltage transformer
IPC: H01F38/26
Filed: 1975-02-10
Abstract: 1495783 Transformers STROMBERG AB OY 10 Feb 1975 5632/75 Addition to 1427980 Heading H1T A voltage transformer similar to that disclosed in the parent Specification 1,427,980, comprises an additional insulator 1<SP>1</SP> similar to the insulator 1. The insulators may be partially overlapping as shown or one may be wholly within the other (Fig. 2, not shown). One of the windings 5 is located between the two insulators and the other winding 4 is located inside the inner insulator. The arrangement is such that the magnetic circuit is broken by both insulators. As shown the winding 5 is conical to fit the space between the stepped end surfaces of the insulators; in the embodiment of Fig. 2 this winding is cylindrical and is separated from the stepped surfaces of the insulators by insulating wedges (13, 13<SP>1</SP>).
Patent GB-764381-A (GB)
Title: Improvements in heat resistant synthetic resins
IPC: C08G63/553
Filed: 1955-02-25
Abstract: 50 parts of a mixture of 32 to 12 parts of diallyl delta4-3,6-endomethylene tetrahydrophthalate with 18 to 38 parts of triallyl cyanurate is copolymerized with 50 parts of a "Knapp alkyd", i.e. the reaction product of a glycol, an alpha, beta-unsaturated dicarboxylic acid (e.g. maleic acid) and dicyclopentadiene.  Benzoyl peroxide may be used as catalyst and the "Knapp alkyd" may contain hydroquinone as inhibitor.  The resins may be used for making panelling reinforced with glass fibres and laminates from impregnated glass cloth for aircraft heating ducts and radomes.  Specification 721,249 is referred to.
Patent GB-818234-A (GB)
Title: Improved methods of preparing cyanine bases
IPC: C09B23/04
Filed: 1956-02-24
Abstract: Heterocyclic methyl sulphones of the formula <FORM:0818234/IV (b)/1> wherein Z completes a benzthiazole, naphthothiazole or benzoxazole ring, are prepared by oxidizing the 2-methylmercapto compounds with potassium permanganate in acetic acid solution.  A list of nuclei which Z may complete is given, including examples wherein the carbocyclic rings carry chloro, bromo, iodo, methyl, phenyl, methoxy, ethoxy, dioxymethylene and hydroxy substituents and including tetrahydrobenzthiazole.  Examples are given of the preparation of the 2-methylmercapto compounds by dissolving the 2-mercapto compounds in caustic soda, and adding methyl sulphate in the case of the benzthiazole and a -naphthothiazole derivatives, and methyl iodide in the case of the benzoxazole compound and of the conversion of these three methyl-mercapto derivatives into the corresponding methyl sulphones. Specifications 424,559, [Group IV], and 663,114, [Group IV (c)], are referred to.ALSO:A cyanine dye base of the general formula <FORM:0818234/IV (c)/1> where Z completes a benzthiazole, naphthothiazole or benzoxazole nucleus, Q completes a quinoline nucleus, n is 1 or 2 and R is alkyl or substituted alkyl, is prepared by condensing a 2-methyl-sulphone of a benzthiazole, naphthothiazole or benzoxazole compound with a quaternary salt of a quinoline compound.  Examples are given of the condensation of quinaldine ethiodide with 2-benzothiazolylmethylsulphone, 2 - benzoxazolyl - methylsulphone or 2-a -naphthothiazolyl-methylsulphone and of the condensation of 2-benzothiazolyl-methylsulphone with 4-methyl-quinoline dimethyl sulphate.  Specifications 424,559, [Group IV], and 663,114 are referred to.
Patent GB-593898-A (GB)
Title: Improvements in processes for the protection of metals and alloys
IPC: C23C22/00
Filed: 1940-03-30
Abstract: Metal articles, e.g., coated electrolytically with a metallic oxide, or oxidized and sprayed with paint, are immersed in liquid paraffin of melting point between 40 and 65 DEG  C., and at a temperature between 170 and 210 DEG  C.  The treatment increases resistance to corrosion, and may reduce an oxide coating to one less rich in oxygen.  Specification 593,512, [Group II], is referred to.ALSO:Metal articles, e.g. coated electrolytically with a metallic oxide, or oxidized and sprayed with paint, are immersed in liquid paraffin of melting point between 40 and 65 DEG  C., and at a temperature between 170 and 210 DEG  C.  The treatment increases resistance to corrosion, and may reduce an oxide coating to one less rich in oxygen. Specification 593,512 is referred to.
Patent GB-411983-A (GB)
Title: Improvements relating to the production of porous materials or bodies
IPC: C08L21/00
Filed: 1933-02-25
Abstract: A vulcanizable hard-rubber mixture is worked up with organic fibrous material, in amount appreciably greater than the rubber, so that the resultant material after vulcanization is completely porous and liquid pervious.  It is suitable for the manufacture of, e.g. battery separators.  In an example, 200 to 300 parts of linters as of cotton, ramie, silk or artificial silk, are worked into a mixture of 100 parts of rubber and 50 parts of sulphur, the mass being then sheeted and vulcanized.  If the surface does not immediately take up water, it may be given this property by moistening with a wetting agent, such as warm water, alcohol or soap solutions and drying.  Hard rubber dust, oil, sulphurized oils &c. may also be incorporated in the composition.
Patent GB-800050-A (GB)
Title: Improvements in or relating to forging machines for manufacturing annular or cup-shaped workpieces
IPC: B21J7/14
Filed: 1956-02-24
Abstract: 800,050. Forging. GES FUR FERTIGUNGSTECHNIK UND MASCHINENBAU G.m.b.H. Feb. 24, 1956 [Feb. 26, 1955], No. 5805/56. Class 83 (4). Annular or cup-shaped workpieces 37, Fig. 6, are mounted on a rotatable and axially movable mandrel 20, clamped against the mandrel by a rotatable holder-up member 34, and swaged by radial hammers 2, 3, Fig. 4. The hammers are mounted in a stationary head 1 and are actuated by eccentric shafts 4 interconnected by gearing 14, 15, 16 and driven through a driving pinion 13 by a motor 12, Fig. 1. The eccentric shafts 4 are mounted in eccentric bushings 5 all of which may be rotated in unison, for adjusting the stroke of the hammers, by gears 6 meshing with a common central gear 7. The rotation is effected by an hydraulic control piston 9 connected with a rack 8 which drives a pinion 10 in mesh with one of the gears 6. The mandrel 20, Fig. 6, is connected to a rotating quill 26, Fig. 5 (not shown) mounted in a carriage 22, Fig. 1, movable along guides 21, and driven by a motor 23. The free end of the mandrel is supported within an insert 36, Fig. 6, of the holder-up member 34 rotatably mounted in the head. Different mandrels, or detachable mandrel ends, and inserts 36 are used to suit different workpieces. The carriage is pressed to the left for clamping the workpiece 37 between the insert 36 and mandrel 20, by hydraulic pistons 32, Fig. 1, connected to the carriage by rods 33 passing through the head 1, Fig. 3 (not shown). A sleeve 27, Fig. 6, surrounds the mandrel and supports it radially within a flanged guide 38. The sleeve 27 is movable axially relative to the mandrel by an hydraulic piston 29, Fig. 5 (not shown), in the carriage, for ejecting the workpiece from the mandrel during the retraction thereof. In another embodiment, Fig. 7, the workpiece 45 is moved to the left during swaging and the holder-up 39, which has a replaceable insert 46 engaging the workpiece, is rotatably mounted in a piston 40 slidable in an hydraulic cylinder 42 from which the exhaust of pressure liquid, and hence the rate of movement of the piston, is controlled by an adjustable throttle 41. After swaging, the piston 40 is moved further to the left to permit the workpiece to be ejected by the sleeve 27 through an aperture 43. The stroke of the hammers may be controlled automatically in dependence upon the movement of the carriage 22 by a templet 47, Fig. 2 (not shown). The mandrel 22 may be watercooled.
Patent GB-1321485-A (GB)
Title: Rotary piston machines
IPC: F01C1/12
Filed: 1970-06-18
Abstract: 1321485 Rotary positive-displacement machines ATLAS COPCO AB 18 June 1970 [18 June 1969] 5822/71 Divided out of 1321482 Heading F1F The subject-matter of this Specification is identical with that described in Specification 1321482, but the claims are concerned with a machine having single-toothed rotors, a gear transmission coupling the rotors to each other and a high-pressure port controlled by one of the rotors, which port is situated at one end of a bore containing this rotor and has an edge extending substantially along an arc of a circle co-axial with and equal in radius to the path described by the radially outer tip of the rotor tooth.
Patent GB-783052-A (GB)
Title: Improvements in movable and angularly displaceable machines for pile driving
IPC: E02D7/16
Filed: 1956-02-24
Abstract: 783,052. Pile drivers. COMPAGNIE INTERNATIONALE DES PIEUX ARMES FRANKIGNOUL, SOC. ANON. Feb. 24, 1956 [March 2, 1955], No. 5844/56. Class 68(2) A support for a machine which is moved over the ground from one working position to another, e.g. a machine for driving or extracting piles or the like, comprises a platform 1 for the machine, secured to a truck 2 having four wheels 3 running between upper and lower rails 5, 4 which are spaced to permit the wheels 3 to be raised from the rails 4, and are carried by a frame 6 supported on the ground by bearing members 7, 8. The truck 2 has within it a second truck 9 having wheels 10 of smaller diameter than the wheels 3, but also running on the rails 4. The truck 9 is connected by a jack or jacks 12 to a table 11 which is rotatable on roller bearings 14 on a base 15. When the machine which is attached to projections 18 is in operation, e.g. for driving a pile, as in Fig. 1, the platform rests upon the members 7, 8 and the table 11 and base 15 are clear of the ground. When the machine is used for extracting piles &c., the platform is shored by jacks 19 which bear against the members 7, 8 and are cleared from the said members when the platform is to be moved. To move the platform, the trucks 2, 9 are moved along the rails 4 to bring the centre of gravity of the whole assembly over the centre of the table 11, the jacks 12 being then operated to force the brake 15 on to the ground and to raise the truck 9 and, through it, the platform 1 and the truck 2 and frame 6 together with the members 7, 8 to such an extent that the raised members may be rotated as a unit on the roller track 14 so that the rails may lie in the direction of proposed movement. Because of the difference in the diameter of wheels 3, 10 the frame 6 will be resting on the wheels 3 by means of the rails 5, whereas the wheels 10 remain disengaged from the rails 5, as in Fig. 4. The assembly 6, 7, 8 may thus be run on the wheels 3, in the direction in which the machine is to be moved. The members 7, 8 are then lowered to take the weight of the outfit and the trucks 2, 9 moved on the rails to bring the machine to its new working position. The invention has the advantage that the centre of gravity of the machine during operation may lie outside the base 15.
Patent GB-1485153-A (GB)
Title: Application of decorations to confectionery
IPC: A23G3/28
Filed: 1975-05-02
Abstract: 1485153 Decorating confectionery EDIBLE GOLDEN CROSSES Ltd and G G BARKER 2 May 1975 [8 Feb 1974] 05965/74 Heading A2A An apparatus for decorating confectionery comprises a member with apertures, each supporting a container with a stack of decorations therein, the lowermost decoration being exposed at the bottom of the container which is open at both ends and restricted at the bottom to prevent decorations from falling through and which protrudes below the member and means for moving the member vertically whereby the lowermost decoration of each container will adhere to an item of confectionery located on a carrier there 'beneath. The member may be moved by a hydraulic piston assembly. The carrier may be movable horizontally.
Patent GB-384294-A (GB)
Title: Improvements in or relating to registering mechanisms for weighing apparatus having m
IPC: G01G23/18
Filed: 1931-02-25
Abstract: 384,294. Weighing - apparatus. SCHEMBER & SÍHNE BRœCKENWAAGEN-UND MASCHINENFABRIKEN AKT.-GES., C., Atzgersdorf, near Vienna. Feb. 25, 1931, No. 5970. Convention date, Feb. 27, 1930. Void [Published under Sect. 91 of the Acts]. [Class 143.] Printed records, apparatus for giving.-In a weighing apparatus provided with means for printing on a sheet of inserted material and on a record strip, the paper carrier 13 is slidably withdrawable from the casing for the purposes of r e - moving and replacing the printed sheet. Printing is effected by the rotation of a crank 14 that, through a cam 16, moves the support 18 of the carrier 13 laterally to press the sheet against type wheels 19. Movement of the crank 14, through means not shown, rotates an arm 1 of a shaft 2 into the position shown in Fig. 5, to lock the weighbeam 20. The paper carrier is slidably mounted on the support 18 and may be withdrawn from the casing through a door 11 movable in vertical guides 12. The door is normally locked by the engagement of a bolt 10 thereon with a stop 8 on a locking-bar 7 provided with an operating button 9. The locking-bar is connected through a bell crank 6 and link 5 to a pin 4 co-operating with a recessed disc 3 on the shaft 2, the arrangement being such that the door and beam cannot both be unlocked at the same time.
Patent GB-166582-A (GB)
Title: Improvements in reversing mechanism for machines cutting right and left hand helicals on rollers and the like
IPC: B23D5/02
Filed: 1919-03-11
Abstract: 166,582. Shaw, O., and Roberts, W. F. March 11, 1919. Lathes.-Reversing gearing is described with reference to a lathe for cutting right and left hand helices such as those forming a chevron or herring bone. The headstock spindle 31 is worm driven at 2 from a cross shaft 1 also geared to a shaft 4 carrying a bevel pinion 5 for driving wheels 6, 7 that are mounted on a sleeve 8 loose in the spindle and shifted exially to mesh with the pinion 5 by a radially movable slide 15 carrying bevel sectors 16, 17. The slide 15 is operated by a pin 20 on a slide 21 displaceable by linkage 25, 27 as controlled by tappets 29 on a rock shaft actuated by dogs 30 on the saddle. Driving-machines.-The reversing-mechanism is stated to be applicable for use in gear-cutting.
Patent GB-449312-A (GB)
Title: Improvements in or relating to driving mechanism for cinematograph machines
IPC: G03B19/18
Filed: 1936-02-29
Abstract: 449,312. Kinematograph apparatus. BOSCH AKT.-GES., R., 4, Militarstrasse, Stuttgart, Germany. Feb. 29, 1936, No. 6123. Convention date, March 2, 1935. [Class 97 (i)] In apparatus comprising a friction disc c driving the mechanism through a friction wheel f variable in position thereon to vary the speed of drive, the wheel f is movable across the centre of the disc to reverse the drive, and the centre of the disc is recessed to prevent wear when the wheel is at its centre. The disc c is carried by the motor shaft b and pressed by a spring d towards a stop formed by a screw s. The wheel f is displaceable along its shaft g by a yoke i having a roller k extending through a slot m, into a slot q in a lever o carried by a shaft p rotatable by a hand lever r.
Patent GB-267504-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/68
Filed: 1927-03-05
Abstract: 267,504. British Thomson-Houston Co., Ltd., (Assignees of Langmuir, I.). March 10, 1926, [Convention date]. Vacuum tubes.- In a highly-evacuated valve in which positive ions are trapped in the discharge space, means such as a grid, or a winding around the envelope, or both, are provided for setting up a field around the cathode for varying the electron current thereby freed from space-charge limitation. The arrangement shown in Fig. 5 comprises a straight cathode 2, a cylindrical anode 3, positively-charged endplates 22 for trapping positive ions within the anode, a grid 20 and a winding 24 around the envelope. The grid may consist of rods mounted between end-plates 21, and the anode may be spaced from the envelope by helical springs. The strength of the magnetic field should be below that at which the flow of electrons from the cathode to the anode is reduced or stopped. An increase of the magnetic field within the working range increases the accumulation of positive ions about the cathode. The potential of the grid and end-plates should be much above the ionizing potential of the gas filling, which is preferably hydrogen or helium at a pressure of less than a micron of mercury. Between the grid and anode the discharge consists substantially of electrons. In the arrangement shown in Fig. 4, a second cylindrical grid 26 is interposed between the positively-charged grid 25 and the anode 3. The inner grid 25 is connected with a battery 30, preferably through a winding of a transformer 44, and the end-plates 27 may be connected by a switch 43 with the grid 25, or with the anode, or disconnected. The grid 26 is connected through the secondary winding of an input transformer 37 and a polarizing battery with the cathode 2. An output transformer 46 is inserted between the anode and the battery. When used as a transmitter, audio-frequency current may be supplied to the transformer 44, so as to vary the potential of the grid 25 and the strength of signals transmitted. When the valve is used as an oscillator the grid 26 may be omitted and the current modified by the positive grid 25. The anode may be corrugated so as to deflect the ions. Specifications 167,561 and 182,431 are referred to.
Patent GB-1211678-A (GB)
Title: A fluid flow transfer system, especially for an industrial vacuum cleaner
Inventor: GMOHLING WALTER
IPC: A47L5/12
Filed: 1969-02-05
Abstract: 1,211,678. Centrifugal, axial-flow, rotary and reciprocating pumps. WIELAND K. G. Feb. 5, 1969, No.6269/69. Headings F1A, F1C and F1F. A fluid transfer system, especially for an industrial vacuum cleaner, comprises two motordriven parallel-connected pumps, one being a non-positive displacement pump and the other a positive displacement pump, the non-positive displacement pump being capable of higher delivery rates than the positive displacement pump but at a lower maximum pressure difference, and one of the connections to the non-positive displacement pump containing a non-return valve whereby the maximum pressure difference of the positive displacement pump is achievable and the maximum consumption of the combined pumps is less than the sum of the maximum power consumptions of the individual pumps. A centrifugal pump 1 and a sliding vane rotary pump 2, preferably driven by a common motor 8, have their inlets connected to a common suction line 3. In the case of an industrial vacuum cleaner, the suction line 3 is preceded by suction nozzles, a hose and a filter arrangement through which air, air-water or airdust mixture is drawn. When the fluid is of low specific gravity, i. e., is air or gas containing dust particles or like impurities, the delivery rate of the centrifugal pump 1 is substantially higher than that of the rotary pump 2, and the power input to the motor 8 is determined mainly by the power consumption of the centrifugal pump, which is at its maximum value. When the fluid is of high specific gravity, e.g. is sludge, the pressure difference necessary to draw the fluid up to the filter arrangement at which the solids are separated from the air or gas is higher than can be developed by the centrifugal pump 1, and a non-return valve 6 in the delivery or intake of the centrifugal pump closes. The delivery rate is now lower and is provided entirely by the rotary pump 2. The power consumption of the rotary pump 2 has now increased but the power consumption of the centrifugal pump is at a minimum. Consequently, the power consumption of the two pumps together is always less than the sum of their maximum consumptions. The centrifugal pump 1 may comprise several stages and may be replaced by an axial-flow pump. The sliding-vane pump 2 may be replaced by a pump of piston, oscillating or gear type. Several parallel-connected positive-displacement pumps and several parallel-connected centrifugal pumps may be used.
Patent GB-1036403-A (GB)
Title: Improvements in tachometric carburettors for internal combustion engines
IPC: F02M69/18
Filed: 1963-02-18
Abstract: 1,036,403. Spray carburetters. SOC. DU CARBURATEUR ZENITH. Feb. 18, 1963 [Feb. 21, 1962], No. 6414/63. Heading FIB In a carburetter having an engine driven volumetric pump 1 supplying a pair of orifices 27, 26, in a fuel delivery pipe 31 and a return pipe 36 respectively, and in which the pressure downstream of the orifices is maintained equal, control means 59 for the orifices are actuated in response to both inlet manifold pressure and engine speed. The pressures in the pipe 31 leading to a nozzle 3 in the inlet manifold, and the pipe 36, leading through pipe 38 to the pump inlet, are maintained equal by a valve 37 in the pipe 33 actuated by a piston 40 subject on opposite sides to the two pressures. The orifices 26, 27, are controlled by a needle valve 59a connected to a plunger 59 which is actuated by a capsule 61 controlled by inlet manifold pressure, the inner face 59b of the plunger being acted upon by the pressure downstream of orifice 26, which pressure varies with engine speed so that the valve 59a is adjusted in accordance with engine speed superimposed upon the inlet manifold pressure control. In a modification, Fig. 2 (not shown), the valve 59a is also adjusted in accordance with atmospheric pressure, or exhaust back pressure, by a piston 72 subject in its left hand face to inlet manifold pressure and on its right hand face to atmospheric pressure. In a further modification the piston 72 is actuated by the pressure in the fuel delivery and return pipes 18, 39. In Fig. 3 (not shown), the valve 59a is adjusted in accordance with engine speed by an engine driven centrifugal governor 102. In a further modification the adjustment of the fuel flow in accordance with engine speed is obtained by an orifice in parallel with either orifice 26 or 27 and adjusted by a plunger responsive to the pump delivery pressure.
Patent GB-1088564-A (GB)
Title: Envelopes and packages with tear means
Inventor: ROHDE WILLIAM ANTHONY
IPC: B65D75/58
Filed: 1965-02-15
Abstract: 1,088,564. Bags; packages. TOWER PACKAGING CO. Feb. 15, 1965, No. 6519/65. Headings B8C and B8K. Thermoplastic material, folded at 23 (Fig. 1) and heat sealed at 25 and, after filling, at 26 to form a bag 22, is pre-grooved at 24 to facilitate opening the bag. In the form shown the groove 24 may be in one or both walls of the bag. The thermoplastic material may be laminated to paper or other sheet materials. The groove lines are preferably formed by probes pressing into the tubular material as it is extruded.
Patent GB-162867-A (GB)
Title: Improvements in means for moulding concrete or the like
IPC: B28B7/00
Filed: 1920-03-04
Abstract: 162,867. Willdig, H., and Wood, J. W. March 4, 1920. Tamping-machines moulds. - Apparatus for moulding concrete or like blocks. bricks, pipes, slabs &c. of the type in which an even pressure is simulta. neously applied by a pressure plate throughout the entire surface of the mould, comprises a bed plate 1, Fig. 2, the distance from front to rear of which is not less than double the width of the mould, an entirely separate and removable mould 9 adapted to rest upon the bed plate, an upstanding bracket member 2 and a pressure plate 5 pivoted at 4 to the bracket member.
Patent GB-696309-A (GB)
Title: Surgical dressings
IPC: A61L15/28
Filed: 1951-03-19
Abstract: A surgical dressing comprises an alginic composition of an alginic material and from 0.5 per cent to 10 per cent of its weight of an acid other than alginic acid.  Gauze, obtained as described in the parent Specification and composed of a combination of alginic acid and calcium alginate, is passed through a 5 per cent-10 per cent solution of a non-alginic acid e.g. phosphoric acid.  Gauze treated with tyrothircin in propylene glycol and alginic acid in ammonium hydroxide, as described in the parent Specification, is passed through a 5 per cent-10 per cent solution of non-alginic acid e.g. nitric acid.  Citric, maleic, malic or tartaric acids may alternatively be used.  Specifications 21586/12, [Class 2 (iii)], and 629,419 also are referred to.