baber/WOPTO huggingface dataset:
Patent GB-587034-A (GB)
Title: Improvements in or relating to the construction of fans, rotors and the like of wood and similar anisotropic materials
IPC: F04D29/32
Filed: 1944-04-11
Abstract: 587,034. Screw fans. LANG, A. A. D. April 11, 1944, No. 6689. Drawings to Specification. [Class 110 (i)] [Also in Group XXIII] Ply-wood discs, from which may be fashioned fan and like rotors, are built up of a plurality of layers, each layer consisting of a number of sectors, the sections of one layer overlying the joints between the sectors of the next layer, and each sector comprising several laminµ with the grain running radially in some laminµ and transversely in others. The arrangement of the grain in the laminµ may be varied through the thickness of the disc so as to give appropriate strengths to the differing portions of the fan blades. Specification 359,070, [Group XXIV], is referred to.
Patent GB-307348-A (GB)
Title: Improvements relating to contact devices controllable by the movement of the film inkinematographic apparatus or in the reproduction of sound from films
IPC: G03B31/00
Filed: 1929-03-01
Abstract: 307,348. British Thomson-Houston Co., Ltd., (Assignees of Tschopp, J.). March 5, 1928, [Convention date]. Records; combined working of sound-reproducing and special noise-producing apparatus.- Contact devices actuated by a moving film to control other apparatus, for example, apparatus producing noises simulating quick-firing guns in conjunction with a kinematograph or sound film are constructed so that the controlled apparatus is arrested in case of breakage of the film. The device may also be used in conjunction with a picture film to control a shutter for making an identification mark on a sound film during recording in synchronism with the picture film. The film 1 has a. notch 2 to influence rolls 30, 22 on spring-pressed rods 29, 21 actuating switch contacts 28, 20 in series in a circuit 14 to a relay 12' in a rectifying circuit supplied with alternating current from mains 8. 'This circuit charges condensers 5 and discharges them through a loudspeaker 3 to simulate quick-firing guns, the charging and discharging of the condensers being controlled by a switch arm 6 oscillated by a cam 11 on a motor 10 driven from the mains 8. The film is held stiff by passing between rollers 35, 36 and against a flange on the roller 35. In case of breakage of the film the roll 30 can move so that the non-conducting end 33 of the contact 28 comes between the springs 27 and breaks the circuit 14 before the broken film can allow the roll 22 to close the contact 20.
Patent GB-1213064-A (GB)
Title: An hydraulically-controlled lathe turret
Inventor: JEANNERET JULES LOUIS
IPC: B23Q16/06
Filed: 1968-02-12
Abstract: 1,213,064. Tool turrets. J. L. JEANNERET. 12 Feb., 1968 [17 March, 1967], No. 6743/68. Heading B3T. A lathe turret comprises a rotatable member 6 having two cutting tools 17, 18 secured thereto, the member being mounted for rotation within a body part 1 between two angular positions and is urged into the respective positions by hydraulic pressure. The member 6 is rotatable relative to an actuate member 9 within a bore 3 in the body 1, there being a part annular chamber A formed between the bore of the body port and the cylindrical surface of the member 6. A radially positioned longitudinally extending rib 12 is secured to the surface of the member 6 and which forms a vane type piston in the annular chamber. The admission of hydraulic pressure fluid sequentially to ports 14 and 15 are on each side of the body 1 effects rotational movement of the member 6 between the abutment surfaces 13, 13<SP>1</SP> of the arcuate member 9, thereby causing angular movement of the tools 17, 18. The hydraulic pressure urges and maintains the rib 12 into engagement with the respective abutment surfaces when alternate tools are used.
Patent GB-1254062-A (GB)
Title: Tobacco feeder or delivery box
Inventor: HAGENAH KLAUS
IPC: A24C5/39
Filed: 1969-02-07
Abstract: 1,254,062. Feeding tobacco. HAUNIWERKE KORBER & CO. K.G. 7 Feb., 1969 [15 March, 1968], No. 6743/69. Heading A2C. [Also in Divisions Bl and B8] In a tobacco delivery box 1 from which air is exhausted through a conduit 7 to induce a supply of cut tobacco into the box through a conduit 6, periodic interruption of the exhausting action allowing a hinged flap 14 to open and tobacco to fall by gravity to a cigarette machine, a separator screen 2 across the box between the conduits 6, 7 comprises a main section 2a and a smaller section 2b, e.g. of smaller mesh, offering a higher specific resistance to flow whereby tobacco entering the box at 6 normally sweeps past the section 2b so that separation is effected over the section 2a and the section 2b remains unblocked.
Patent GB-1524523-A (GB)
Title: Device for controlling the diameter of a growing crystal
IPC: C30B15/24
Filed: 1975-10-16
Abstract: 1524523 Crystal growing METALS RESEARCH Ltd 16 Oct 1975 [16 Oct 1974] 06745/78 Divided out of 1524521 Heading BIS A device for controlling the size and shape of an interface between a melt of crystallisable material contained within a crucible and a crystal thereof grown from the melt by the Cyachralski method comprises a plate 16 adapted to float on the melt in the crucible 12 having a passageway therethrough of predetermined size and shape which conforms to the size and shape of a desired crystal cross-section and wherein the plate is formed of boron nitride, silica, graphite, silicon nitride, silicon carbide or beryllia. The material is selected so that the plate is not welted by the molten crystallisable material and the cross section of the passageway tapers from the top to the bottom so as to permit continuous crystallisation of the melt within the passageway.
Patent GB-516813-A (GB)
Title: Improvements relating to air heating furnaces
IPC: F26B21/00
Filed: 1938-07-08
Abstract: 516,813. Air heating furnaces. HOARE & CO. (ENGINEERS), Ltd. (Davison, W.). July 8, 1938, No. 6972/39. Divided out of 516,791, [Group XII]. Drawings to Specification. [Class 64 (i)] In an air-heating furnace particularly intended for supplying hot air for use in drying tea and of the kind having a hot air chamber above the furnace crown to which chamber air is admitted from heating passages at the side of the furnace, the roof of the furnace has a sliding portion which may be slid back to allow furnace gases to mix with the air in the hot air chamber. Specification 516,791 is referred to.
Patent GB-702325-A (GB)
Title: Improvements in or relating to electrical control circuits
Inventor: CLAYDEN RONALD THOMAS
IPC: H03G7/02
Filed: 1950-03-22
Abstract: 702,325. Valve non-linear amplifying circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 9, 1951 [March 22, 1950], No. 7106/50. Class 40 (6) A device is arranged to operate non-linearly in a positive feedback loop in such a manner as to cause the gain to increase as the instantaneous value of the applied signals decrease. A signal 2, D.C. restored by device 19 is amplified by valve 3 and fed to cathode follower 21 supplying output terminals 11. A tapping on potentiometer 26 is connected to the grid of valve 4 having a common cathode resistance 5 with valve 3. In the absence of an input signal, valve 4 is conducting so that the gain of the valve 3 is high due to positive feedback to the cathode of the valve. As the signal 2 increases, the grid of valve 4 is driven more negative and less signal is fed back, the overall gain falling accordingly, and the output appearing as in curve 1. A rectifier 21a may be inserted in the cathode lead to prevent further increase of gain with negativegoing input signals, the limiting level being adjusted by varying the tapping on potentiometer 25. The use of the rectifier also allows the gain to fall for small inputs so that noise signals are not unduly amplified, as described in Specification 702,359. The degree of non-linearity may be adjusted by means of potentiometer 32, and the signal is D.C. restored between valves 3, 21 by device 24. In a modification, Fig. 4 (not shown), the valve 4 is cathode coupled to a further valve the anode of which is connected to valve 3, thus allowing the omission of D.C. restorer 19. Either the valve 4 or the further valve may be arranged to operate in a non-linear manner according to the desired response. The output from the circuit of Fig. 2 may be fed to one of a pair of valves arranged as a long-tailed pair, the other being fed with a linear input, Fig. 3 (not shown). A positive-going or negative-going signal of variable non-linearity may be derived from the two anodes. Specifications 449,242 and 702,321 are referred to.
Patent GB-890641-A (GB)
Title: Improvements in and relating to the production of tufted fabrics
Inventor: ERWIN JOSEPH OTIS
IPC: D05C15/16
Filed: 1957-03-05
Abstract: 890,641. Tufting machines. COBBLE BROS. MACHINERY CO. Ltd. April 3, 1958 [March 5, 1957], No. 7202/57. Class 112 [Also in Group IX] Hand-twisted yarn is used in making cut-pile tufted carpets on a machine having side-by-side needles each co-operating with a looper hook, and in which the hook engages between the needle and the yarn on the side opposite to that down which the yarn travels to the needle eye, by so selecting the yarn that the twist imposed thereon by the co-operation of the needle and yarn tends to untwist the yarn. A looper 8 has its point extending in a direction opposite the direction 7 of work feed, and is on the left-hand side of the needle 1 when looked at from the delivery side of the machine. The needle 1 is formed on one side with a longitudinal groove leading to the eye 5, and on the other side with a longitudinal flat surface. Specification 735,019 is referred to.
Patent GB-969440-A (GB)
Title: Orifice fluid valve assembly
IPC: F16K5/06
Filed: 1963-02-22
Abstract: 969,440. Valves. H. E. McGOWEN. Feb. 22, 1963 [June 11, 1962], No. 7209/63. Heading F2V. In a rotatable plug valve, fluid pressure inlet and outlets are connected through an orifice plate contained within the plug and removable to interchange the size of orifice. Valve plug 11, within chamber 13 between inlet 15 and outlet 16, is rotatable upon cap 25, interlocked thereto by a dependant key 28 within a recess of the plug stem 21, between open and closed positions against a stop 24 and is locked in either position by a spring plunger 30. Orifice plate 1, having dependent handle portion 3 and carrying detachable orifice disc 5 secured by sealing ring 6, is retained within a slot of the spherical valve plug 11 by cover plate 18 which is removable to permit the plate 1 to be withdrawn through an axially directed slot 17 within the wall 14 of the valve body, when the valve is in the closed position, by engagement of a tool within holes 9. Inlet 15 and outlet 16 are fitted with interchangeable coupling members 32 and 38 each of which serve to retain annular P.T.F.E. seals 35 and 41, within retainer rings 36, forming bearing contact with the plug 11. The inlet pressure may be measured via a tubular boss 43, opening into the chamber 13, communicating with inlet 15 through passageway 44 when the plug is in the open position and the outlet pressure measured via tubular boss 42, annular space 45 and plug passage 48. Prior to removal of the orifice plate 1, with the plug valve 11 in the closed position, the valve chamber 13 is relieved of pressure via needle valve 49 seating upon a P.T.F.E. bushing. After replacing the orifice plate 1 the valve chamber 13 is pressurized to protect the seals 35 and 41, via passages 54, 55 and 57, needle valve 68, ball check valve 61 and passage 62 to the chamber 13.
Patent GB-540026-A (GB)
Title: Improvements in and relating to reducing valves
IPC: G05D16/16
Filed: 1940-04-22
Abstract: 540,026. Pressure-regulating valves. GRAHAM, J., GRAHAM, D. A., and AULD & SONS, Ltd., D. April 22, 1940, Nos. 7252/40 and 4913/41. [Class 135] A pressure regulating valve of the kind controlled by a relay valve has the relay valve arranged to control the admission of high pressure fluid to the underside of a main actuating diaphragm or the like, the upper face of the diaphragm being subject to either low pressure or high pressure. In the form shown in the Fig. 1 high pressure fluid from the inlet 2 acts on the underside of the main valve 8 and passes through a port 5 to a chamber 4 where it acts on the upper face of a diaphragm. This diaphragm is clamped centrally between members 12, 13 on the valve spindle 9 and peripherally between a flange on the lower part of the main casing and a detachable dome-shaped cover 17. The relay valve 24 is actuated by a spring-loaded diaphragm 29 and controls the passage of high pressure fluid from the chamber 4 through passages 19, 19a, 39, 20a, 20, 21 to a chamber 171 in the cover 17 beneath the diaphragm. Fluid escapes from this chamber through passages 21, 20, 20a, 36, 38 and pipe 40 to the low pressure side of the main valve under the control of an adjustable throttle 37. In a modification high pressure acts on the upper side of the main valve and is admitted directly to the chamber above the relay valve. In this form the upper side of the main diaphragm is subject to low pressure.
Patent GB-233290-A (GB)
Title: Improvements in bandeaux
IPC: A42C5/02
Filed: 1925-03-19
Abstract: 233,290. Thornley & Booth, Ltd., and Thornley, S. March 19, 1925. Bandeaux for insertion in the back of hats consist of stiff material blocked, pressed or otherwise formed near the bottom edge with a pleat so that the upper part of the bandeau tends to stand away from the hat. A strip A of buckram covered with velvet is formed Z-shaped in cross section. A V or other shaped portion may be cut away from the upper edge of the bandeau at about the centre, and a length of elastic material a<2> secured across the gap so formed to increase the resiliency of the bandeau. The bandeau may be secured in the hat by stitching, press-studs or hooks.
Patent GB-496175-A (GB)
Title: Improvements in distillation of high boiling liquids such as fatty acids
IPC: C11C1/10
Filed: 1937-06-07
Abstract: High-boiling liquids such as fatty acids are distilled by vaporizing them with the aid of heat and high vacuum, separating entrained and unvolatilized material from the hot vapours without substantially reducing their temperature and preheating the feed to substantially the temperature of the still by indirect contact with the hot vapours free from entrained and unvolatilized material.  The hot vapours may be brought into successive indirect contact with steam, liquid feed and water to superheat the steam, to preheat the feed to the still temperature and to generate saturated steam; the superheated steam so generated is injected into the liquid to be vaporized.  The process may be carried out in the apparatus described in British Specification 496,677.  French Specification 15394/55 also is referred to.
Patent GB-661772-A (GB)
Title: Improvements in or relating to high pressure liquid pumps
IPC: F04C15/00
Filed: 1949-03-18
Abstract: 661,772. Gear-wheelpumps. BORGWARNER CORPORATION. March 18, 1949. [March 26, 1948] No. 7432/49. Class 110(ii). To secure effective sealing in a gear pump without excessive friction, the combined high pressures on the areas A2, A<SP>3</SP> of a bush 16, slightly exceed the average, opposite pressure within the pumping chamber 12 plus the high pressure acting on the cut-away surface A<SP>4</SP>. The area of the latter surface is preferably obtained by the cut and try method. Pressure fluid passes to it by way of a groove 16c or an oblique channel cut through the bush, Fig. 4 (not shown). Light springs S give initial loading on the bushes 16 but the force exerted is small compared with the fluid pressure on the bushes. A passage 20 allows pressure fluid to flow to a chamber outside the bushes 16. A through passage 15c allows pressures to be balanced axially on the lower bushes 16, 17. An area A<SP>7</SP>, equal to an area A<SP>5</SP>, communicates with the high pressure side. A seal assembly 25 comprises a splined coupling 25a, flange 25b, bearing washer 25c and flexible ring 25d. In an alternative arrangement, Fig. 5, the splined drive is in the plane of the gear 114 and high-pressure fluid acts at both ends of the pump and on surfaces 117a. The axial grooves and spline passage allow adequate lubrication of the shaft journals. U.S.A. Specification 2,420,622 is referred to.
Patent GB-196591-A (GB)
Title: Improvements in and relating to sealing-in-machines for electric lamp bulbs and the like
IPC: H01J5/24
Filed: 1923-03-14
Abstract: 196,591. British Thomson - Houston Co., Ltd., (Assignees of Marshall, J. E.). April 24, 1922, [Convention date]. Welding.-In an apparatus for sealing into a bulb 13 a mount 23 having a longitudinally - extending exhaust tube 24, a hollow shaft 29 is provided for supporting the mount 23 and allowing unobstructed communication therethrough from the exhaust tube to the atmosphere. The exhaust tube 24 extends into the upper end of the shaft 29. The bulb 13 rests on a collar 14 supported on a base 16 from which a hollow shaft 17 extends downwardly through the frame 11. By means of a pulley 20 the bulb and mount may be rotated. The shaft 29 carries a chuck comprising- chuck members such as balls 32 which engage the sides of the exhaust tube 24. The balls 32 are normally held against the tube 24 by a loose sleeve 33. The apparatus shown in Fig. 2 is mounted on a rotatable frame 11, Fig. 1, and is caused to travel from one position to another for the different operations in the sealing-in process. A flange 30 at the lower end of the shaft 29 engages with a track 31 provided with rollers on which the flange 30 rests during rotation of the shaft 29. A gap in the track 31 allows the shaft 29 to drop so that the sleeve 33 encounters the base 16 and releases the balls 32 from engagement with the tube 24. The neck of the bulb is blown off by air passing through passages 38 from nozzles 40 and being directed outwardly by a flange 39. Specifications 147,293 and 151,682 are referred to.
Patent GB-585270-A (GB)
Title: Improvements relating to sheet metal filing cabinets
IPC: A47B55/00
Filed: 1944-04-21
Abstract: 585,270. Cabinets. CONSTRUCTORS, Ltd., and FINER, H. J. April 21, 1944, No. 7469. [Class 52 (i)] In a sheet-metal cabinet the front rails 12 are provided with downwardly extending lugs 13 which are welded to the side members 10, 11 of the front frame. Specifications 585,267 and 585,269 are referred to.
Patent GB-607597-A (GB)
Title: Improvements in or relating to band or hose clips
IPC: F16L33/08
Filed: 1945-03-24
Abstract: 607,597. Band clips. O'SHEI, W. E. March 24, 1945, No. 7489. [Class 44] In a band or hose clip of the type in which one end of the band is provided with a series of serrations or part threads, such, for example as that described in Specification 602,458, the latter are formed by blanking-out portions 9 of the material between the teeth 5, the outer ends 10 of the blanked-out portions tapering or curving together so that the ends of the teeth where they join the plain edges at the sides of the band 1 are wider and stronger than the central parts of the teeth. The teeth may be formed at an angle corresponding to the helix angle of the screw, but are preferably formed at right angles to the length of the band or at less than the helix angle of the screw, as described in Specification 607,671. Specification 576,975 also is referred to.
Patent GB-1093225-A (GB)
Title: Belt driven conveyor rollerway
IPC: B65G13/00
Filed: 1965-02-22
Abstract: 1,093,225. Roller conveyers. KORNYLAK CORPORATION. Feb. 22, 1965 [Oct. 22, 1964], No. 7507/65. Heading B8A. A power driven roller conveyer comprises two rollerways 12, 14 each provided with an endless drive belt cut on an arc. The rollerway 12 comprises channel members 16, 18, between which are mounted live tyred rollers 42 and idler rollers 46, the latter being urged toward the drive belt 52 by springs 48, 50. Drive pulleys 54, 66 also engage the respective endless belt of the rollerway 12, 14 and power is applied via shaft 56 and sprocket 58. The rollers 64, 66 of the rollerway 14 are of smaller diameter than the rollers 42, 54 of the rollerway 12 to reduce heat and wear due to friction between a load and the live rollers.
Patent GB-1131214-A (GB)
Title: Spreading type disc brake
Inventor: KERSHNER OSBORN ARTHUR
IPC: F16D65/14
Filed: 1966-02-21
Abstract: 1,131,214. Disc brakes. LAMBERT BRAKE CORP. 21 Feb., 1966, No. 7528/66. Heading F2E. In a disc brake of the kind comprising actuating members 34, 36 relative rotation of which causes, through a cam device, outward spreading of the members to cause one or more friction discs 26, 28, rotating with a shaft to be braked but axially slidable thereon, to be gripped between the members 34, 36 and co-operating surfaces 22, 24 of a housing, actuation of the brake is initiated by a fluidpressure cylinder 62 whose piston 74 bears, by way of a rod 76 having an enlarged lower end 80, on bearing studs 81, 83 formed on the peripheries of the respective members, whereby the reaction causes movement of the cylinder which, through linkage or wedge means, relatively rotates the members. The cam device preferably consists of balls which are arranged between and engage in inclined recesses in the opposing faces of members 34, 36. The linkage comprises a pair of toggle links 54, 56, each bifurcated to pivot on trunnions (64), (66), (Fig. 4, not shown), formed on the cylinder, and which are pivoted to ears 50, 52 of the respective members 34, 36 at their outer ends. Alternatively (Fig. 6, not shown) wedge surfaces (104), (106) formed on the cylinder (62a) may co-operate with corresponding wedge surfaces (100), (102) formed on the ears (50a), (52a) through interposed rollers (108), (110) in which ease actuation of the brake is arranged to be by spreading apart of the ears (50a), (52a) instead of by drawing the ears 50, 52 together as is the case with the toggle links shown. Fixed rods (42), (44), (Fig. 1, not shown), limit movement of the members 34, 36 in both directions, and release of the brake following an application is effected by tension springs 82. A compression spring 90 in the cylinder assists release, while a rubber cushion 88 in the cylinder together with a spring 76 prevent chatter. Manual operation of the brake may be effected via linkage 96 connected via a pin 98 to ears 94 formed on the cylinder.
Patent GB-265026-A (GB)
Title: Improvements relating to the drying of fabrics in the open width
IPC: D06C7/00
Filed: 1926-03-18
Abstract: 265,026. Barclay, S. F., and Mather & Platt, Ltd. March 18, 1926. Drying fabrics in long lengths.-The fabric is conveyed by a stationary machine through a chamber a through which the vapour derived from the moisture in the material and superheated in heaters d, e is circulated by fans. The fans communicate with mains having nozzles h which direct the vapour on to the fabric. An adjustable outlet n is provided in the chamber so as to prevent the pressure exceeding that of the atmosphere. A condenser may be associated with the inlet to each fan. The steam-valves to the' heater may be automatically controlled by thermostats. In a modification, only a single fan and heater are employed.