baber/WOPTO huggingface dataset:
Patent GB-784765-A (GB)
Title: An improved method of and apparatus for the rapid and uniform heating of industrial furnaces
IPC: F23M5/02
Filed: 1955-09-27
Abstract: 784,765. Burners. OFU OFENBAUUNION GES. Sept. 27, 1955 [July 19, 1955], No. 27523/55. Class 75(1) [Also in Group XII] Fig. 1 shows a burner duct 8 so shaped that flames issuing in whirl formation from a burner 1 pass over the face of wall 4 as shown the back flow of atmosphere from a closed furnace chamber being repelled in the duct mouth. The burner of Fig. 2 comprises fixed housing 1 and nozzle mouthpiece 36 and a rotatable and axially movable sleeve member 34 with a nozzle part 35. The part 35 and piece 36 are toothed at their edges in their plane of division in the manner of a ratchet coupling the tooth, backs 39 each having a surface of helical form such that rotation of the sleeve, effected by movement of a lever 41, either forms gaps 55 of adjustable size between 35 and 36 or causes the teeth when in full engagement, to form a closed ring. Combustion air passes to the burner duct via a duct 3 and the openings 55 whilst fuel passes to the nozzle part 35 through a duct 2 and the sleeve 34. Rotation of sleeve 34 is limited by a fixed pin 42 interengaging an arc-shaped slot in a projection 44 fixed to the sleeve. In the burner of Fig. 4 liquid fuel is fed through pipes 15, 17 to an atomizing cup 18. Pipe 17 is disposed within a shaft 23 driven by a motor 16 and mounting a fan 21. Air to assist fuel atomization, is drawn in through damper-controlled duct 19 by the fan and discharged through annulus 22. Combustion air enters through duct 3 and is whirled by an adjustable device 25 before passing through an annulus 26 to the duct 8. A baffle wall 10 is arranged in the furnace chamber in front of the duct 8. Fig. 5 shows a centrally apertured annular disc-form baffle 60 placed within the duct mouth whilst Fig. 6 shows a form of duct in which cross-sectional views taken through the duct no longer represent concentric circles, as has been hitherto assumed, but form eccentric circles. The disc 60, Fig. 5, may be suspended such, that it may be moved relative to the duct mouth so as to increase or decrease, as required, the annular gap between disc and mouth. The burner fuel may be liquid, gaseous or pulverized coal.
Patent GB-519677-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G33/00
Filed: 1938-09-21
Abstract: 519,677. Screw conveyers; vehicle fittings for loading. LEWIN ROAD SWEEPERS, Ltd., and LEWIN, W. J. Sept. 21, 1938, No. 27527. [Classes 78 (i) and 78 (iv)] A casing to be charged is furnished with a short screw conveyer at its inlet end and is mounted to rotate at predetermined pressure of the loaded contents thus moving as a unit with the conveyer and stopping further feed of the material. As applied to the loading and unloading of refuse vehicles, the casing 2, forming the body of' the vehicle, is furnished with the hinged door which is raised as shown in dotted lines for unloading but receives material through the upper orifice 5 for loading. The short multi-threaded conveyer 9 is driven by the gearing 10 preferably from-the propelling engine of the vehicle. When the packed material reaches predetermined pressure, which is regulated by hand-setting of a spring-controlled brake band 15, the casing 2 and conveyer 9 rotate in unison and the feed stops. For unloading, the casing is driven positively in the reverse direction and as the material continually falls back by gravity to the bottom of the casing, it is fed axially by the spiral fins 19 on its interior.
Patent GB-209715-A (GB)
Title: Improvements in crushing machines for stone and the like
IPC: B02C1/10
Filed: 1923-11-02
Abstract: 209,715. Larsson, G. H. Jan. 9, 1923, [Convention date]. Crushers with vibrating jaws.-The side wedges for securing the removable stationary crushing- plate of a machine for crushing stone &c. are provided with projecting portions which form the outermost side portions of the crushing-plate and are provided with one or more wear-ribs in the same manner as the crushing-plate. As shown, each side wedge is made in two parts 1, 2 which are not secured together and have projecting portions 9 which engage longitudinal cut-outs 7 at both sides of the crushing-plate 3 and hold the latter against a seating 4 on the frame wall 5. The plate 3 and the portions 9 form a continuous working surface. With a reversible plate 3 having ribs on both sides, cut-outs 7 are provided on both sides of the plate. The upper and lower parts 1, 2 of the wedges may be secured together by means of pivots. Or the wedges may be in one piece and have exchangeable wear-plates riveted on the lower portions of their inner sides.
Patent GB-260996-A (GB)
Title: Improvements in and relating to protective systems for electric circuits
IPC: B60L3/06
Filed: 1926-11-03
Abstract: 260,996. British Thomson-Houston Co., Ltd., (Assignees of Forsberg, P. W.). Nov. 3, 1925, [Convention date]. Cut-out arrangements; automatic circuitbreakers.-In order to protect a circuit in which current may flow in either direction against overload or fault two high-speed overload circuitbreakers are connected in series with one another in the circuit and one of them is adapted to trip when the excess current is in one direction and the other when the excess current is in the other direction. As shown applied to the protection of a locomotive motor circuit both against straight overloads on the motor and against overloads when the motor is being used for regenerative breaking, the highspeed circuit-breaker 11 takes care of straight overloads and is connected in series with the similar circuit-breaker 12 which takes care of regenerative overloads. The circuit-breakers are of known type; they are closed by electromagnetic mechanisms 22 under the control of the starting button 24 and are retained closed by the electromagnets 18, 18<1> energized at 19, 19<1> from the auxiliary source 23 each through interlock back contacts on the other circuit-breaker; consequently, if one circuit-breaker opens the other is released also. The windings 19, 19<1> are oppositely wound so that when excess current in the motoring direction passes through the current windings 20, 20<1> (which are connected across impedances 21, 21<1> in the line) the upper circuit-breaker is tripped and brings out the lower breaker. When the motors are generating excess current causes the release of the lower circuit-breaker which brings out the other. Specification 187,993 is referred to.
Patent GB-889903-A (GB)
Title: Improvements in and relating to two stroke internal combustion engines
IPC: F01M11/08
Filed: 1959-08-12
Abstract: 889,903. Centrifugal separators. FICHTEL & SACHS A.G. Aug. 12, 1959 [Oct. 22, 1958], No. 27620/59. Class 23. [Also in Group XXVII] A rotary centrifugal filter 8, removing entrained oil from scavenging and/or combustion air passing from a crankcase 1, wherein is it compressed, to cylinder transfer ducts 11, is driven by a shaft 4 external of the crankcase. The filter 8 is in a casing 2 secured to the crankcase side and has labyrinth (or ring) seals 14a. Two filters 8 on the same shaft may feed individual ducts 11. The shaft 4 is powered, as from the engine crankshaft, via gearing or a variable-speed belt drive 6. The filter 8 may incorporate wire mesh netting or perforated metal sheets.
Patent GB-363654-A (GB)
Title: Improvements in or relating to machines or apparatus for washing granular and like materials
IPC: B03B5/56
Filed: 1930-09-16
Abstract: 363,654. Washing granular materials. PARKER, Ltd., F. and PARKER, F. W., Viaduct Works, Catherine Street Extension, Leicester. Sept. 16, 1930, No. 27630. [Class 82 (ii).] In a contra-flow washer of the cylindrical or drum type in which the material to be washed is fed into the apparatus through an opening in a plate at one end thereof and the dirty water is discharged through the same plate, means are provided in or on the plate to strain the water as it is discharged. One or more series of perforations may be provided surrounding the feed opening or screens, grids, or perforated plates may be attached to the plate so as partially to cover the opening. The plates or grids are preferably detachable, or means may be provided for varying the size of the apertures, e.g. two relatively rotatable perforated plates arranged face to face. In a modified form, buckets with straining means at their discharge ends may be attached to the end plate of a rotary washer so as to raise the dirty water and direct it through the strainers and out at the feed opening. Fig. 1 shows a rotary cylindrical washer 2 provided at the feed end with a ring 1 to which is detachably fitted an end plate 3 having a central feed opening 4 surrounded by perforations 5. The washer is divided into two compartments by a baffle ring 13, the clean water being fed in at B and the dirty water discharged through the perforations 5. Conveying blades 14 are provided at the feed end and lifting vanes 15 carry the material to the discharge end where it may be subjected to a further washing in concentric screens 16, 17, 18 of decreasing mesh, water being supplied from a pipe 19. In the endplate shown in Fig. 4 a series of perforated plates 9 are detachably secured over apertures 10 surrounding the feed opening 4a in the endplate 3a. The plate 3a may be attached directly to the cylinder or may be placed over an aperture in a ring on the end of the washer, as shown in Fig. 1.
Patent GB-969989-A (GB)
Title: Tyre-cord filaments from base-polymerised lactams
Inventor: STEINHOFER ADOLF
IPC: B60C9/00
Filed: 1962-07-19
Abstract: Heat-resistant tyre-cord filaments are made by melt spinning base-polymerized lactams from which monomers, oligomers and water-soluble alkaline catalysts may have been solvent-extracted with water or methanol.  Alternatively the spinning of the polymerized lactam may follow immediately after its having been polymerized. Suitable lactams comprise all lactams of o -aminocarboxylic acids with rings of more than six members which can be converted into polyamides by means of alkaline reaction initiators, e.g. caprolactam, o-nantholactam, caprylolactam, o -aminopelargonolactam, o -aminocaproyllactam, o -aminoundecanolactam or laurolactam.  The bases used for the initiation and continuation of the polymerization may be alkali metals, alkali metal carbonates, alkali metal amides or alkali metal lactams.  In an example, a caprolactam containing 0.4% of sodium and a caprolactam containing 3% of pyrrolidone-n-carboxylic acid anilide are fed at the same rate at 100 DEG C. to an extruder heated in zones from 140 to 270 DEG C,, mixed, polymerized and melt spun.  The filaments thus obtained have a Fikentscher K-value of 74 and contain 9.6% of water-extractable components.  They may be cold or hot drawn either before or after the extraction of the water-soluble components.  In the other example 1,500 parts of caprolactam containing 17 parts of potassium and 3,414 parts of caprolactam containing 76 parts of bis-caprolactam-n-carboxylic acid hexamethylene-diamine-1.6 are mixed and polymerized to form a polycaprolactam having a K-value of 127 and a melting range of 215-220 DEG C.  The polymer is found to soften less with increase in temperature up to 190 DEG C. than nylon 6.6 having a melting range of 250-255 DEG C.  Specification 919,246 is referred to.
Patent GB-265292-A (GB)
Title: Improvements in and relating to the electrolytic deposition of cadmium
IPC: C25D3/28
Filed: 1925-11-04
Abstract: 265,292. Marks, E. C. R., (Grasselli Chemical Co.). Nov. 4, 1925. Cadmium, depositing.-The electrolyte consists of an alkaline solution containing a cadmium compound, a cyanide, and an ammonium com. pound, the last-named being introduced in order to prevent simultaneous deposition of zinc or other metals when present. The deposits are improved by the presence in the electrolyte of a colloid such as, starch, dextrine, or a solid residue obtained by evaporating sulphite cellulose waste liquor and known as " gulac." A suitable composition is 3 oz. cadmium hydroxide, 6¢-7 oz. sodium cyanide, ¢-1 oz. caustic soda, “ to ¢ oz. sodium carbonate, and 1 oz. aqua ammonia 26‹ BÚ to 1 gallon of water. Another suitable composition is 40 oz. cadmium hydroxide, 30 oz. ammonia sulphate, 85 oz. sodium cyanide, 13 oz. sodium hydroxide and 9 oz. gulac to 5 gallons of water. The cadmium and ammonium compounds with or without the colloid agent may be made up in the form of a dry mixture for supply to an electroplater together with directions for the preparation of the bath. The zinc and cadmium content of a mixture may be determined in the following way. A mixture containing, say about equal parts by weight of cadmium and zinc sulphates, is dissolved to form a strong solution and treated with ammonium hydroxide until the precipitated hydroxides redissolve. To each 5 c.c. of the resulting solution are added about 10 c.c. of a 14 per cent ammonium hydroxide solution and about 7.5 gms of sodium cyanide and the resulting solution diluted to about four times the volume of the ammoniacal solution of the salts. The diluted solution is electrolysed between electrodes 15 cms apart with a current density of 1 amp per sq. dcm at 4-6 volts for about 3 hours; the cadmium is completely deposited. The cathode, which may be of platinum gauze, is removed without breaking the current, washed with alcohol, dried, and weighed. Zinc, depositing.-The residual solution from the above process is treated with 20 gms of caustic soda and the ammonia removed by boiling. The solution is then cooled and electrolyzed between electrodes 15 cms apart with a current density 2 amps per sq. dcm at 4-5 volts to deposit the zinc.
Patent GB-533139-A (GB)
Title: A device for the control of the diffusion of air from an air conditioning or ventilating machine or parts thereof
IPC: F24F13/075
Filed: 1939-10-13
Abstract: 533,139. Ventilators. U.S. AIR CONDITIONING (GREAT BRITAIN), Ltd., and SHARP, H. J. (United States Air Conditioning International Inc.). Oct. 13, 1939, No. 27800. [Class 137] Two sets of streamlined louvres 2, 3 are arranged in a rectangular frame 1, the louvres of each set being disposed with their own axes at right angles to one another. Each louvre is independently adjustable, being secured in position by locking washers 7 held between the louvres and the frame by screws 4 which engage with lugs 7 in the larger edges of the blades which are formed by strips of sheet metal bent round to the required shape.
Patent GB-801445-A (GB)
Title: Improvements in or relating to electron tubes and to methods of making them
IPC: H01J9/26
Filed: 1954-09-27
Abstract: 801,445. Colour television tubes. OWENSILLINOIS GLASS CO. Sept. 27, 1954 [April 13, 1954], No. 27808/54. Class 39(1). A method of sealing together the glass members of an electric discharge tube, particularly a colour C.R.T., the members consisting of a hollow glass body 11 and a face plate 10, comprises hermetically welding a sealing band 14, 15 on each of the members 10, 11, each of the sealing bands comprising a thick inner portion 50 of stainless steel and a thin wide outer web 51 of copper or copper alloy completely surrounding the band, juxtaposing the members 10 and 11, bringing the outer edges of the webs 51 together under pressure of the internally cooled clamping members 25, 26 and hermetically sealing the webs together along their outer edges by moving a heating appliance 28 around the contour of the edges. A trimming tool 27 can be moved around the contour of the edges in advance of the heating means. During the sealing operation the glass members 10 and 11 are held between resilient holders 43 and 40 having air or fluid expansible tubes 44 and 41 or spring members. Spring means 42 may be interposed between the thick portions 50. The depth of the seal is approximately equal to the combined thickness of the webs 51. The width of the webs 51 is much greater than the width of sealed area so that the sealed edge portion of the webs can be removed to permit opening of the tube and resealing thereof. A colour screen 20 can be connected to the upper or lower thick portion 50. Specification 789,378 is referred to.
Patent GB-1083551-A (GB)
Title: Contactless ignition devices
IPC: F02P7/07
Filed: 1964-07-06
Abstract: 1,083,551. Hall effect circuits. HITACHI Ltd. July 6, 1964 [July 10, 1963], No. 27809/64. Heading H3T. [Also in Division F1] An engine ignition system includes automatic advancing means 37 which includes a small electric generator 38 whose output is variable in response to engine speed. The generator output is fed to a Hall effect device 43 disposed in a magnetic field which rotates in synchronism with the engine. The output of the Hall effect device controls the timing of a pulse-generating means 63 whch is composed of a condenser 64 and a resistor 65. One terminal of the condenser is connected with the collector of a transistor 56. Reference 66 designates a monostable circuit which includes two NPN transistors 67, 68. When the trigger signal by the pulse-generating means 63 is applied to the ignition control means 66 the operative states of the transistors 67 and 68 are reversed. The cut-off of the transistor 68 results in abrupt cut-off of the igniting transistors 75 and 76 and a pulse at high voltage is thereby induced in the secondary coil 79 of the ignition coil. The timing can be controlled with the aid of variable resistors 50 and 53. The resistor 61 may be replaced by a lamp 62.
Patent GB-1437359-A (GB)
Title: Contact strip
IPC: H01R12/71
Filed: 1973-06-12
Abstract: 1437359 Printed circuit board connectors BUNKER RAMO CORP 12 June 1973 [15 June 1972] 27882/73 Heading H2E A contact strip 1 for printed circuit boards comprises a plastics strip 2 having blade contacts 3 partially embedded therein, each of which include a contact leg 4, for connection to a mating socket, a connector leg 5 for connection to a printed circuit board, and a transitional portion 6, of approximately semi-circular form, completely embedded within the portions 2d and 8 of the strip 2, which is of substantially T-shape, having stem portions 7 and 8, and arm portions 2d and 2c. The transition portion 6 is as wide but thinner than contact leg 4, the transition point 11 being situated where the portions join. Similarly, connector leg 5 is less wide than transition portion 6, the dimensional change being effected at 10. Transition sec ion 6 has an approximate radius of 2mm, and encloses an obtuse angle with contact leg 4, the connector leg 5 being effectively a tangent to the portion 6, so that leg 4 and leg 5 are approximately perpendicular to each other.
Patent GB-339013-A (GB)
Title: Improvements relating to wheels of vehicles
IPC: B60C7/12
Filed: 1929-09-13
Abstract: 339,013. Coronado, G. I. Sept. 13, 1929. Tyres, elastic, special apparatus for making.-Relates to apparatus for use in packing an ordinary tyre cover a with hollow rubber &c. balls 1 under pressure. In the form shown in Fig. 4, a collar 3 fixed to the rim b adjacent an aperture 2 therein is threaded to receive a pump cylinder 7 into which the balls are fed through an opening 7<1>. To prevent escape of the balls during the return stroke of the piston 8, a slide 16 is moved into a slot 5 in the collar 3. When the pump is removed, the collar is fitted with a closure-cap 6, Fig. 1. The pressure may be gauged by means of a flexible ball 24 inside the tyre with a tubular extension 25 to receive an ordinary manometer. In a modification, the lever mechanism 10, 11 is replaced by crank-operated means.
Patent GB-974046-A (GB)
Title: Improvements in or relating to the sewing of bindings to garments
IPC: D05B29/06
Filed: 1963-07-16
Abstract: 974,046. Sewing. G. M. PFAFF A.G. July 16, 1963 [July 20, 1962], No. 28043/63. Heading D1G The Specification describes a method of sewing a binding and a lining strip to a garment by seams which are invisible from the right side of the garment. A twin needle sewing machine is provided with a guide 1 secured at 3 to the presser bar and provided with a recess 4 and a plate 14. The binding strip 9 is introduced into the recess through a slot 8 and passes down behind the plate 14,the curved edges 6,7 of the recesses folding each edge 31, 30 of the strip around the path of the corresponding needle 20, 21. The needles sew only the turned over edges 31, 30 to a lining strip 24 fed from a folding device, not shown, in the direction F,the strip 9 passing out of a second slot (not shown) in the guide 1 to pass back in direction F together with the attached strip 24. After a short length of the seam has been completed the upper edge of the garment 29 (Fig. 6) is disposed on the binding strip 24 and thereafter sewn between the strips. Belt loops 32 may be arranged round the strip 9 and the needle paths just before the insertion points to be sewn in between the strip and garment. To this end the strips are folded at 23 and 26 to reduce their width. After the loops have been sewn in the tacking, if any, is removed from the folds 23, 26 and the folds removed. The portion of binding initially sewn without the fabric is slit on the surface of strip 24 and the ends of the strips 9, 24 are drawn back through the slit, stitched on a normal single needle sewing-machine, trimmed and then drawn back through the slit, thus providing an invisible seam at that end.
Patent GB-172785-A (GB)
Title: Electrical indicator
IPC: G08B5/28
Filed: 1920-10-04
Abstract: 172,785. Norris, A. F., and Holley, H. L. Oct. 4, 1920. Falling-flap and positively-moved electromagnetic indicators.-An electric indicator has an armature and flag combined into a single moving part, which on the energization of the electro-magnet is tilted into a position from which it can fall to the signalling position when the electromagnet is energized. The flag A<2> is integral with the armatures A<1> pivoted at L. When the core C is magnetized and the armatures A<1> are attracted, the flag moves forward from the inoperative position, Fig. 1, and on being released completes its motion under gravity until the operative position, Fig. 4, is reached. The flag is restored manually by pulling a cord attached at H' to the cranked rod H. To prevent false operation due to shaking, the apparatus is supended from pivoted arms G. According to the Provisional Specification, the core C has its axis vertical and is arranged above the flag A<2>, which is in this case formed as a partly cylindrical armature.
Patent GB-639465-A (GB)
Title: An improved arrangement of lathe tool holders in turret heads
IPC: B23B3/18
Filed: 1946-09-19
Abstract: 639,465. Lathe turrets. TRIGGS, W. W. (Skoda Works, Plzen). Sept. 19, 1946, No. 28112. Addition to 639,463. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 19, 1946.] [Class 83 (iii)] The cantilever portion 13 projecting out of the front wall of the lathe turret head 1 of the parent Specification supports the body portion of the toolholder 14 by means of an adjustable member, e.g. a set-screw 15, wedge or the like.