baber/WOPTO huggingface dataset:
Patent GB-476872-A (GB)
Title: Improvements in or relating to the electrical heating of forgings
IPC: H05B3/00
Filed: 1936-06-12
Abstract: 476,872. Heating forgings by passage of current. BENEDETTO, G. D. M. June 12, 1936, No. 16481. [Class 39 (iii)] A yoke 19 passing through the magnetic core 11 carrying a primary winding 18 is provided with terminal blocks 22, 23 and co-operates with a movable yoke 30 provided with terminal blocks 31, 32 and which may be pivotally mounted on a hydraulic ram 34 by which it is operated to grip the ingots 25 to be heated. Two ingots may be arranged one above the other and separated by a block. One or both terminal blocks may be fitted with a vice 70, 72, Fig. 3, for gripping a portion or portions of an ingot intermediate its ends. In Fig. 5 four ingots 25 are arranged between fixed blocks 84, 86 and movable blocks 85, 87 to surround a limb of the core 82. Specifications 214,194 and 234,719, [both in Class 39 (iii)], are referred to.
Patent GB-554308-A (GB)
Title: Improvements in and relating to the inking mechanism of electrical recording apparatus
IPC: G01D15/16
Filed: 1941-12-22
Abstract: 554,308. Valves. HILL, A. P., and AUTOMATIC TELEGRAPH & RADIO TRANSCEIVER CO., Ltd. Dec. 22, 1941, No. 16505. [Class 135] [Also in Groups XL and XV] An electrically - controlled valve for the supply of ink to the recording stylus of a telegraphic or other signal recording apparatus is provided with an ink space 9, Fig. 1, on the inlet side 10 between the valve 12 and a plunger 3 and with another ink space 17 in front of the valve, the arrangement being such that each time the plunger is operated by a signal impulse to open the valve, the ink is pressed from the space 9 to the space 17 and from this through the outlet 16 to the recording stylus, whereas when the valve closes, the ink is sucked into the space 17 and smudging is avoided at the stylus. The valve is normally held closed by a spring 21 and is opened by the attraction of an armature 2 on the end of the plunger 3 by an electromagnet 1 when this receives a recording signal. The valve may be supplied with ink through a pipe 23, Fig. 4, from a reservoir 22 adapted to be filled through an opening 25 closed by a screw cap 26.
Patent GB-554925-A (GB)
Title: Improvements in or relating to variable-pitch airscrews and propellers
IPC: B64C11/44
Filed: 1941-12-22
Abstract: 554,925. Variable pitch propellers; controlling a.c. motors. CHILMAN, J. A. Dec. 22, 1941, No. 16522. [Class 114] [Also in Group XXXVII] In a variable pitch propeller in which the pitch-changing movements of the blades are effected by an electric motor carried on the propeller hub, all the operational controls from reverse to feathering positions are effected by means of a three-phase alternating current motor with not more than four slip-ring connections to control switches. In the form shown, the three phases 23, 24, 25 of the motor are connected in parallel with a three-phase electromagnet 26 which releases a spring loaded brake when current is supplied to the motor. The phases 23, 24, 25 are connected to the three-phase supply lines 39, 40, 41 by four slip-ring connections at 27, the circuits including two limit-switches 28, 29 connected in parallel, a switch 35 which is opened by either of a pair of solenoids 36, 37, a reversing switch 34, and a two-way selector switch 38. The limit-switch 28 opens when the blades reach either their feathered or reverse position, whilst the limitswitch 29 opens at any suitable intermediate position such as a limiting fine or coarse pitch position. With the switches 34, 38 in the positions shown, the motor rotates in one direction to coarsen the pitch either until the switch 38 is opened manually or until the feathered position is reached and the limit-switch 28 opens, With the switches 34, 38 in their alternative positions, the motor rotates'in the opposite direction to reduce the pitch until the limiting fine pitch position is reached and the limit-switch 29 opens. This arrangement is also used for returning the blades from their feathered position. With the switch 34 in its alternative position and the switch 38 in the position shown, the blades continue beyond their fine pitch position until they reach the reverse pitch position and the limit switch 28 opens. With the switch 34 in the position shown and the switch 38 in its alternative position, the blades are returned from their coarse pitch position. The operation for adjustment towards finer or coarser pitch positions may be effected by relay switches controlled by governor-operated constant engine-speed control mechanism. A modification using only three sliprings is described and illustrated in the Specification.
Patent GB-379011-A (GB)
Title: Improvements in or relating to light-metal structures
IPC: B64C1/00
Filed: 1931-06-06
Abstract: 379,011. Aircraft structures; bolting. FRISE, L. G. and BRISTOL AEROPLANE CO., Ltd., Filton House, Bristol. June 6, 1931, No. 16573. [Class 4.] Light metal structures of the kind comprising hollow members to which other parts are attached by bolts &c. are provided with an internal reinforcement consisting of a tubular distance piece of such diameter that it can be inserted through the hole for the bolt or the like without having to be deformed and having a longitudinal cut or slit whereby it may be expanded inside the structure member to a size greater than the diameter of the hole. As applied to a spar 11, Fig. 2, to which are to be bolted plates 12, a mild steel distance tube 10 is employed and plates 12 and spar 11 are drilled to permit the distance-piece to pass into the spar without being deformed. When partly inserted a bolt 13 having a tapered end 14 is inserted from the opposite end and the distancepiece is then forced down upon this bolt and expanded, as shown in Fig. 3. According to modifications, a bolt having a portion of reduced diameter may be employed or expansion of the distance-piece may be effected by a tapered drift. Alternatively a screw-threaded rod, Fig. 7, may be employed having at each end nuts 20 with conical base portions 21. The rod may be formed as a bolt with a bolt head similar to the nut 20, 21. According to the Provisional Specification a distance-piece may be a metal tube cut across diagonally for a short distance at each end and used in conjunction with expanding means such as shown in Fig. 7, whereby the ends of the tube may be expanded, when the nut or nuts are screwed home, to a diameter greater than that of the bolt hole.
Patent GB-178755-A (GB)
Title: Improvements in or relating to reciprocating fluid pressure motors
IPC: F01B17/00
Filed: 1921-06-16
Abstract: 178,755. Fullwood Foundry Co., Ltd., and Chalmers, S. June 16, 1921. Fluid-actuated gears; beat or lift valves; piston rods and pistons (main), valve in or on and moving over ports in or on.-A double-acting fluidpressure motor, specially suitable for shaking sand riddles comprises a cylinder 4 in which reciprocates a. piston 1 containing a distributing-valve 6 which controls passages 7, 8 and 7<a>, 8<a> leading from the chamber 2, to which the pressure-fluid is supplied by an inlet 3, to the ends of the cylinder, exhaust from which takes place by passages 9, 9<a> adapted to be covered and uncovered by the piston. The floating valve 6 is moved to and fro by the fluid entrapped at each end of the piston stroke.
Patent GB-704239-A (GB)
Title: Improvements in or relating to hoppers for feeding conveyors
Inventor: HARPEN FRANCIS RICHARD
IPC: B65G65/00
Filed: 1950-07-04
Abstract: 704,239. Feeding material to endless conveyers: hoppers. McALPINE & SON, Ltd., Sir A. July 3, 1951 [July 4, 1950], No. 16590/50. Class 78 (1) A hopper adapted to be placed astride the track of an endless conveyer for receiving material from one or more sources such as excavators and feeding it to the conveyer, is provided with a length of auxiliary track for the upper run of the conveyer which is adapted to lie above the normal track of the conveyer at least in the region in which the material is fed to the conveyer during the passage of the upper run of the conveyer beneath the hopper, and with means such as wheels or rollers to enable it to be moved along the line of the conveyer as work proceeds. As shown, an endless belt conveyer 16 having its upper run normally supported by troughing rollers 18 receives material from a hopper unit 10 adapted to be moved on wheels 12 along rails 14 extending parallel with the conveyer. The hopper unit is formed with a floor 17 having idlers 19 for supporting the upper run of the conveyer belt. Material received in a hopper member 24 is delivered on to the conveyer belt 20 by an endless belt conveyer 21 supported on rollers 22, 23 mounted in the hopper unit. The idlers 19a adjacent the ends of the conveyer 21 are coated or formed of resilient material or are resiliently mounted so as to withstand the impact of the falling material. The conveyor 21 may be driven in either direction at a variable speed. Chains 28 assist in breaking up clots of material fed by the conveyer 21.
Patent GB-238348-A (GB)
Title: Improvements in and relating to knives for cutting confections or other plastic materials
IPC: A23G7/00
Filed: 1924-07-11
Abstract: 238,348. Armstrong, T., and Wheatley, H. July 11, 1924. Sheet-cutting machines. -Cutters of machines for moulding caramels and the like comprise a knife 2 and a series of hnivea 1 at right angles to and spaced from the knife 2. Indentation knives 4 and 5, Fig. 3, may added, the latter being placed between pairs of cutting knives 6. The knives are screwed to blocks 9, 11, 10, 12 which are secured to plates 7, 8.
Patent GB-751819-A (GB)
Title: Improvements in fastening clips for use in conjunction with adjustable shelving or the like
IPC: F16B5/06
Filed: 1954-06-08
Abstract: 751,819. Stud-and-socket fastenings. WARD, E. S. W. July 12, 1954 [June 8, 1954], No. 16784/54. Class 44. A fastening clip for securing together superimposed sheet-like elements 5, 6 consists of a length of springy material such as metal strip bent into V-form to provide a pair of legs 1, 1, the ends of which 2, 2 are bent outwards sub. stantially at right-angles to the axis of the V, the legs being kinked inwardly as shown at 3 at their respective junctions with the outwardly bent ends to form recesses thereunder, the recesses having a pair of opposed surfaces making an acute angle with one another of the order of 30 degrees or less and forming sub. stantially sharp shoulders at the junction with the legs, whereby the edges of registering holes 8, 9 in the superimposed sheet-like elements through which the clip is inserted are locked together in the recesses between said sharp shoulders and the outwardly bent ends and accidental displacement of tha clip from the hole is thereby prevented. The clip may be used for securing vertical dividing partitions to the shelves of metal filing and storage cabinets. By the use of the acute angle of 30 degrees or less and the sharp shoulders at the junction with the legs the elements are gripped together face to face much more tightly than would be the case if the shoulders were rounded and the angle larger. Specification 563,799 is referred to.
Patent GB-612779-A (GB)
Title: Improved seed drill
IPC: A01C7/08
Filed: 1946-06-03
Abstract: 612,779. Seed-sowing machines. PEST CONTROL Ltd., DORMAN, A. K., and HARTLEY, G. S. June 3, 1946, No. 16833. [Class 6 (i)] A seed sower comprises means for rolling in seed to a pre-determined depth after sowing on the unchannelled surface of the ground, and means for covering the seed after rolling. As shown, the seed is fed from a hopper 1 down a tube 3, deflector plates 11 preventing the seed from scattering. A roller 12 fitted with flanges or grooved circumferentially is mounted on a pivoted spring- loaded or weighted arm 10, together with coulters 15 for covering the seed with or without further rolling. A hopper 17 contains a protective powder, such as charcoal, which is delivered through tubes 23, 24, over the seeds, a little powder being fed in front of the roller to assist in preventing soil adhering to the wheel. In a modification, the powder-hopper may be dispensed with, when a plain roller may be used.
Patent GB-137548-A (GB)
Title: Improvements relating to hangars and like portable structures
IPC: E04B1/343
Filed: 1917-11-15
Abstract: 137,548. Richards, T. E. Nov. 15, 1917. Roofs.-A roof truss is made of main rafters a', a' differing in length and of a tie-beam together with a king-post b<1>. The component beams and posts are wooden tubes and the junctions are made by means of pairs of metal cheeks h having radial directing ribs and channel seats for the ridge-beam. The cheeks are secured by coupling- bolts p<1>, and slots therein are engaged by tongueplates o on the beams.
Patent GB-120452-A (GB)
Title: Improvements in and relating to Airplane Constructions.
Inventor: MURRAY JAMES JOSEPH
IPC: B64C1/00
Filed: 1917-11-15
Abstract: 120,452. Murray, J. J. Nov. 15, 1917. Cars and cabins; framework; planes, arrangement of ; land wheels; propelling.- The main planes, engine, landing-gear, and if desired the seats, of aeroplanes are carried directly by two beams extending longitudinally of the fuselage. In the form shown, two beams 1, arranged within and connected to the transverse members 3 of the fuselage, carry the main planes by means of struts 5, the engine 11 by means of transverse bearers 12, the land wheels 9 by means of hangers 7, and the seats 14, 15 by means of hangers 16.
Patent GB-1020709-A (GB)
Title: Hydrogenated block copolymers, compositions containing them and process for the preparation of the hydrogenated block copolymers
IPC: C08F8/04
Filed: 1964-04-23
Abstract: Elastomeric polymers are made by hydrogenating a block copolymer of the formula A-B-A in which each A is an independently selected polymerized alkenyl aromatic hydrocarbon block having an average molecular weight of 4000 to 115,000 and in which B is a polymerized conjugated diene hydrocarbon block having an average molecular weight of 20,000 to 450,000, block A constituting 2 to 35% of the block copolymer, the residual unsaturation, both ethylenic and benzenoid, being less than 30% of its original value.  The block copolymer starting materials are made by the sequential polymerization of alkenyl aromatic monomers and conjugated dienes.  The hydrogenation of the block copolymers is carried out with the aid of known catalysts, e.g. nickel on kieselguhr.  The hydrogenated products may be used as moulding materials and may be modified by the presence of silicone and mineral oils, chlorinated biphenyl, polyethylene, polypropylene, polystyrene, asphalt, wax and natural and synthetic rubbers.  The examples describe the hydrogenation of polystyrene-polyisoprene-polystyrene block copolymers.
Patent GB-354899-A (GB)
Title: Improvements in or relating to retarding mechanism for electric switches
IPC: H01H71/44
Filed: 1930-05-31
Abstract: 354,899. Retarding action of electromagnetic switches, drum controllers, &c. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and WILSON, W., of General Electric Co., Witton, Birming- ham. May 31, 1930, No. 16914. [Classes 38 (iii) and 38 (v).] A retarding device for a contactor or power-operated switch or for a drum controller &c. comprises an escapement wheel 1 driven by the switch-closing mechanism, the speed of rotation of the wheel 1 being governed by a balanced oscillatory mass of variable moment of inertia having pallets 3, 4 engaging the wheel 1. The oscillatory mass may include two spindles 8, 9, carrying weights 10, 11 movable thereon to varying distances from the centre of oscillation 6, or the oscillatory mass may consist of a flywheel, the moment of inertia of which is regulated by screws round its periphery. The wheel 1 is driven by gearing from a wheel 15 having six pins 18 which are engaged in turn by a pawl 17 on a bell-crank lever 22, 21 connected to the armature of the contactor. When the contactor electromagnet is de-energized the lever 22, 21 rotates in a clockwise direction and the pawl 17 slides upwards to engage the next pin 18. When the electromagnet is energized the pawl 17 drives the wheel 15 at a rate determined by the escapement mechanism.
Patent GB-664299-A (GB)
Title: Apparatus for briquetting granular or pulverulent material
IPC: B30B11/20
Filed: 1949-06-27
Abstract: 664,299. Briquetting-machines. HUBMANN, O. June 27, 1949 [Jan. 20, 1949], No. 17014/49. Class 87(ii) The machine comprises a stationary horizontal ring 2 and a disc or roller 4 which is journalled at 6 on the upper cranked part 5 of a vertical shaft 3 which is rotated by means of a spur gear 8. Granular or pulverulent material to be briquetted falls from hopper 12 into the broadening and narrowing space 22 between the ring and the roller and is compressed in the space, the roller rolling. along the inside of the ring because of the friction between the material and the roller. The roller may have ribs which subdivide the material. A hood 10 fixed to and rotating with the crank carries arms 14 which support an obstructing element 15 which travels around-and closes the open part of the slot. The briquettes 24 are detached from the ring by a scraper 16 secured to element 15, and are swept into a delivery shoot 18 by a blade 17 also secured to 15. Arms 11 carried by the hood co-operate with arms 13 fixed to the hopper to mix the material. The bearing 6 is connected to the crank by springs 9, to prevent strain on the shaft due to excess feed of material. Hot gases may be introduced through pipe 19, e.g. superheated steam may be introduced when coal is briquetted with pitch as a binder or to soften caking coal &c. The Specification as open to inspection under Sect. 91 states that the springs 9 may be replaced by a hydraulic device. This subject-matter does not appear in the Specification as accepted.
Patent GB-319384-A (GB)
Title: Improvements in the manufacture of spokes for cycle and motor wheels
IPC: B21F39/00
Filed: 1928-06-12
Abstract: 319,384. Marks, E. C. R., (Metallwarenfabrik Prinz & Bufe). June 12, 1928. Wheels. - Wire spokes for cycles and motor wheels are made by producing a constriction e in a continuous length of wire stock d as by rotary beaters a, Fig. 4, fitting over the constriction a divided drawing-die b and drawing the stock therethrough by a drawing drum c. The rotary beating gear and the drawing-die are alternately operated so as to produce a series of spokes in an uninterrupted cycle. The meeting faces of the die-parts may interengage in order to avoid forming grooves on the work.
Patent GB-1125257-A (GB)
Title: Screw extruder
IPC: B29C48/08
Filed: 1967-04-13
Abstract: 1,125,257. Adjustable extrusion die heads. HERMAN BERSTORFF MASCHINENBAUANSTALT G.m.b.H. 13 April, 1967 [12 Jan., 1967], No. 17058/67. Heading B5A. In the production of sheets, e.g. of plastics or rubber, material is extruded from a slot diehead 4 into the nip of a pair of calendering rolls (2), 3, the width of the sheet being determined by removable slides 16 and 17 which slot into die-head 4. An array of slots is provided in the head, those not occupied by slides 16, 17 being sealed by intermediate slides 12, 13 which have openings to align with a distribution duct (4a), Fig. 3 (not shown). In operation, a change of width is effected by withdrawing the extrusion unit horizontally from the rollers until the protruding ends of slides 12, 13, 16 and 17 engage chucks in stationary clamps 8, 9 (see also Fig. 1, not reproduced). Slides 16, 17 and the intermediate slides whose slots are to be freed are clamped and the extrusion unit is moved towards the rolls until the held intermediate slides can be removed and replaced in clamps 8, 9 by slides 16, 17. The extrusion unit is then moved to allow insertion of slides 16, 17 into head 4 in which they are clamped and the adjusted extrusion unit is moved to its operating position adjacent rolls (2), 3.
Patent GB-1413280-A (GB)
Title: Flame-resistant composition of matter of high molecular weight linear polyesters
IPC: D01F6/92
Filed: 1974-04-19
Abstract: 1413280 Flame resistant polyester compositions BAYER AG 19 April 1974 [19 April 1973] 17255/74 Heading C3R A composition comprises a high molecular weight linear polyester and a compound of the formula in which n is 1 to 10 and m is 2 to 10. The composition preferably contains 0À1 to 30% by weight, based on the composition, of the fluorine compound. The examples describe compositions containing polyethylene terephthalate and C 4 F 9 SO 2 N(CH 2 CH 2 OH) 2  or
Patent GB-297868-A (GB)
Title: Improvements in and connected with transmission gearing
IPC: B61D43/00
Filed: 1927-06-29
Abstract: 297,868. Saccaggio, P. C. June 29, 1927. Movements of vehicles, utilizing.-In a toothed gearing for transmitting power between the running axle of a railway vehicle and a dynamo, compressor or other piece of apparatus, and of the kind in which the gears are provided with contacting cylindrical surfaces, e.g. as described in Specification 297,141, for keeping the gears in correct mesh, deviation of the shaft of the dynamo &c. from parallellism with the running axle, whilst maintaining the gears in correct mesh, is permitted by connecting one of the gears with its shaft or a.xle through the medium of a universal joint giving the necessary degree of flexibility. In the construction shown in Fig. 1, the gear-wheel a is provided with external teeth b and with cylindrical surfaces c, and is connected with the transmission spindle k by means of a universal joint comprising co-operating spherical surfaces e, j, a trunnion block f, and pins or trunnions g, h forming axes of rotation. In order to permit an axial displacement of the gear a relative to the gear it engages, the teeth b are made broad and gaps d are left between the teeth and the cylindrical surfaces c. In a modification, Fig. 3, dies p carried by a trunnion block q of the universal joint are slidable in guides o within the gear a, thus permitting between the gear and the spindle s a relative sliding movement in addition to the pivotal movement. Constructions are also described in which the gears are combined with a torque stay, and with a maximum transmission clutch. In still further modifications, one or more parts of the joint are formed by divided sleeves adapted, when coupled together, to form spherical bearing surfaces.