baber/WOPTO huggingface dataset:
Patent GB-1081964-A (GB)
Title: Improvements in or relating to flexible tension members such as endless belts and methods of manufacturing the same
IPC: B29D29/00
Filed: 1966-04-27
Abstract: 1,081,964. Moulding transmission belts. SCHLADITZ-WHISKERS A.G. April 27, 1966 [April 29, 1965], No. 18414/66. Heading B5A. [Also in Division F2] In a flat, V, or toothed driving belt comprising reinforcing fibres or cords embedded in a body of natural or synthetic rubber, the outer surfaces of the cords are metal coated to improve bonding with the rubber. The fibres, e.g.- of a polyamide, polycarbonate, polyester, polyethylene, P.V.C., R.T.F.E., glass fibre, or asbestos fibre, can be twisted together into cords prior to the metal coating. Iron, nickel or chromium is deposited to a thickness of about 1 micron, preferably by thermal decomposition of metal compounds from the gaseous state. The metal coated cords are wound on a metal core and heated to 180-200‹ C. by electrical resistance or induction heating or by chemical heating, and molten rubber poured around the core to surround the cords. The metal coating may form the conductor for resistance heating. The resulting belt is stripped of the core when cool.
Patent GB-1170313-A (GB)
Title: Portable Chain Saw having Anti Vibration Handle
Inventor: SHARP GEORGE RAYMOND
IPC: F16F15/067
Filed: 1967-04-21
Abstract: 1,170,313. Sawing. G. R. SHARP, and D. A. SHARP. 4 April, 1968 [21 April, 1967], No. 18441/67. Heading B5L. A portable chain saw comprises handle means 12, 13, 14 attached to the body thereof for carrying and supporting the saw in use and in which at the points of attachment of the handle means to the body coil springs 15, 16 are interposed to dampen or prevent the transmission of vibrations to an operator grasping the handle means when in use. The handle means consists of a generally C-shaped metal tube 14 welded to one end of a tube 13 which is curved at its other end and welded to a tube 12. Three coil springs 15, 16 are bolted to the tube and to the body of the saw.
Patent GB-1390571-A (GB)
Title: Method and apparatus for controlling the downhole acoustic transmitter of a logging-while-drilling system and method and apparatus for surface-to-downhole communication
IPC: E21B47/18
Filed: 1973-04-17
Abstract: 1390571 Automatic control MOBIL OIL CORP 17 April 1973 [18 July 1972(2)] 18468/73 Heading G3N Down-hole operations in a borehole are controlled by controlling the conditions in a plurality of communication channels in the borehole providing subsurface detectors for detecting the conditions in the channels and producing first signals representative of the conditions and producing from the first signals at least one control signal which is used to control a down-hole operation. As shown a conventional rotary drilling apparatus, Fig. 1, has a drill string 22 fed with drilling fluid through a desurger 33 suppressing pump noise. A down-hole logging tool 40 includes one or more transducers for measuring down-hole conditions and an acoustic transmitter producing a signal in the drilling fluid, which is received by one or more transducers 41 mounted on a swivel 30. The signals are applied to a recording system 42. The communication control, Fig. 4, comprises a mud flow-rate detector 80, and a comparator 81 and corresponding devices 82, 83 and 84, 85 for weight-on-drill and drill string rotary speed respectively. The mud-flow-rate is controlled from a pump 31, Fig. 1, and the detector 80 provides an electrical signal MFR which is applied to the comparator 81 which provides two output signals related to specific threshold values. The output signals from comparator 81 together with similar signals from comparators 83, 85 are fed to a control gate 86 in which they are selectively combined to provide a plurality of control signals A-E.
Patent GB-942381-A (GB)
Title: Improvements in tape-measures
Inventor: BISHOP DONALD
IPC: G01B3/10
Filed: 1959-05-30
Abstract: 942,381. Measuring-tapes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 25,1960 [May 30, 1959; Feb. 4, 1960], Nos. 18513/59 and 4076/60. Heading G1M. The measuring tape 22 is wound on a reel 1 and can be locked in an extended position by a spring-loaded eccentric member 25. Two spring bands 14,15 are normally accommodated on spools 16 but may be wound on to a bobbin 13. This bobbin 13 has a radially toothed face 10 which is spring urged into engagement with a similar face 3 on the tape reel 1, and the engagement may be released by depressing a button 8. In use, the button 8 is depressed and the tape pulled out nearly to the length it is desired to measure. The button 8 is then released so clutching the bobbin 13 and the reel 1 together. Final drawing out of the tape 22 then winds the bands 14,15 on to the bobbin 13 and this is stated to produce a constant returning torque on the reel I so that long distances may be measured with the tape under a constant tension and allowance may be made for the sag in the tape by providing different zero marks which are used according to the length being measured. Pawls 17,17a urged into notches 18 are used to prevent the bands 14,15 from unwinding or being wound up too far. In a second embodiment, Fig. 4 (not shown), the bobbin 13 is clutched to the reel 1 when the winding handle is in its inoperative position e.g. when the tape is being pulled out. A hydraulic damper is used to limit the speed at which the spring bands are retracted. The tape may be provided with a hemispherical knob for measuring into corners bounded by three planes, a similar knob being provided on the measuring face 24 of the casing. The rewind handle may be connected to the tape reel by a constant-torque coupling, the tape being run out freely and the excess reeled in until the tension is correct when the rewind handle will slip.
Patent GB-571372-A (GB)
Title: Improvements in or relating to refrigerator systems
IPC: F25B27/00
Filed: 1943-11-08
Abstract: 571,372. Refrigerating. GARVIE, J. Nov. 8,1943, No. 18555. [Class 29] [Also in Group XXIX] The compressor 57 of a condensing or non- condensing refrigerating system adapted for a domestic refrigerator (not shown) is driven by a water pressure engine 26 receiving its supply from town mains or like source, the exhaust from the engine being led through a casing 71 to cool or condense the compressed refrigerant in a coil 69. The water circuit through the engine is in a bye-pass to the main pipe 10, Fig. 2, delivering to the usual house cistern, and a valve 20 in the branch 14 leading to the engine is actuated by a thermal element 24 responsive to the temperature in the refrigerator to shut off the engine supply when the temperature is low and permit the water to flow on through a pipe 17 to the pipe 10 and the cistern. When the float valve of the cistern is shut the flow through the branch 14 is normally stopped, but a ball valve 78 located in the conduit 72 leading the engine exhaust back to the pipe 10 may be actuated by a thermal element 81 to allow the water to flow to a waste pipe 76 when the cistern is full. The liquid distributing valve of the engine comprises a sliding piston member 28, 29 actuated by water pressure on the ends of the valve rod 30 controlled by plunger members 43, 44 engaged by the engine piston 26 at the ends of its stroke.
Patent GB-582090-A (GB)
Title: Improvements in and relating to the steering devices of air-borne craft or other vessels or projectiles
IPC: F42B19/01
Filed: 1942-06-23
Abstract: 582,090. Automatic steering devices. WILSON, W. G. June 23, 1942, No. 18613. Divided out of Complete Specification of 582,083. [Class 135] An automatic steering device has the amount of movement imparted to the rudder automatically adjusted in proportion to the external forces acting on the rudder by means of a plurality of elastically interconnected members which are adapted to receive and absorb an incoming movement and resolve it into an outgoing movement of variable degree. These external forces are dependent upon the speed of the vessel or projectile to be steered, the density of the medium in which it is moving and other factors, such as the position of the centre of pressure. As shown, a rod 52, Fig. 4, is loaded by a spiral spring 54 arranged between an abutment 53 on the rod and a fixed base 43 and by a pair of helical springs 48 arranged between a pair of abutments 49 on a tie-rod 47 and abutments 46 bearing on levers 45 pivoted to the base 43 and coupled by toggle-links 50. The end 56a of the rod 52 is coupled by links 56, a pair of bell-crank levers 57a and cables 60, 60a to the tiller bar actuated by a pair of bellows under the control of an interceptor valve actuated by gyroscope or compass. The spring mechanism is so proportioned that the pull exerted by the rod 55 corresponds to the deflection of the bell-cranks 57a and tiller bar and remains constant for that deflection whatever axial displacement of the rods takes place. The end 56a of the rod 55 is connected by a link 61 to the apex 2 of triangle 63, 64 pivoted on a fixed pivot 65. The ends of the member 64 are coupled by links 66, 66a with a see-saw lever 67 secured to the rudder 21. The rudder takes up a position in which the forces acting on the rudder just balance the thrust of the rod 55. Specifications 579,807, [Group XXI], 579,816 and 582,083 are referred to'.
Patent GB-571762-A (GB)
Title: Improvements in the control of water transmission systems
IPC: G05D7/03
Filed: 1943-11-10
Abstract: 571,762. Electric control systems. GIBBS, G. J. Nov. 10, 1943, No. 18643. [Class 40 (i)] [Also in Group XXIX] In a water supply system, the flow from a distant reservoir 1 is controlled in conformity with the the quantity of water available by a valve 4 in the water main, the valve being controlled by the flow as measured by a flow meter on the downstream side of the valve and by the head of water as measured by the pressure on the upstream side of the valve. The flow meter comprises a constriction 5, such as a venturi, and pipes leading from the two sides of the constriction to standpipes 11, 12 which will show different levels of water corresponding to the pressures at the tapping points. The weights of partially submerged bodies 18, 19 varying with the water levels in the standpipes are applied to a beam 9 pivoted at 50 and damped by an oil dashpot 16. The beam is loaded by a weight 13 and its movement is limited by stops 14, 15. The pressure on the upstream side of the valve is measured as the force of a jet 10 issuing from the end of a pipe 6 connected to the main. The jet impinges against a baffle plate 17 on the end of a beam and, in the upper position of the beam, the jet is deflected through a conduit 24 into the compartment 29 of a tilting bucket. When the compartment is full the bucket tilts, discharges the water into a receiver 31 on a lever which is thereby lowered and, through a link 34, actuates a control valve 21 to supply pressure fluid to a servomotor 22 to actuate the valve 4. The water in the receiver 31 draws away through a hole 35 when the receiver is in its lowered position. When the beam abuts against the stop 15, water from the jet is deflected through a conduit 25 into the other compartment 30 of the tilting bucket and the sequence of operations is reversed to move the valve 4 to its other position. The servomotor may be electrically operated in which case the valve 21 is replaced by a reversing switch.
Patent GB-775243-A (GB)
Title: Improvements in and relating to thermostat devices in or for air heating systems
IPC: F24D5/00
Filed: 1955-06-28
Abstract: 775,243. Thermal switches; snap action switches. GENERAL ELECTRIC CO. June 28. 1955 [June 28, 1954], No. 18700/55. Class 38(5) A device suitable for use in an air heating system comprises a member 34 which may be manually moved into the path of a switch actuating member 31 thereby preventing the automatic thermal actuation of a switch 22 which controls an aircirculating fan. The automatic control comprises a bimetallic helix 2 which protrudes into the furnace plenum chamber of the air heating system and which controls the rotation of a shaft 6 to which areattached fingers 17, 18, 19. Finger, 19 actuates a button on a furnace heater switch 21. The finger 17 engages the switch, actuating member 31 which depresses a button 23 on switch 22 thereby opening the contacts of the fan circuit. Member 31 is pivoted on a bracket at 25, and is controlled by a tension spring 28 which passes over a dead centre position. to provide snap action. The finger 18 moves the member 31 in the opposite direction on reverse rotation of shaft 6, thereby releasing the button 23 and closing the fan circuit. The arrangement thus provides that the fan operates only when the air in the plenum chamber is warm. The manually operable member 34 which disables the automatic system to allow the fan to circulate cold air is pivoted at 38 on a bracket 36 and controlled by a spring 39, its end protruding through a slot in the spring so that the latter is carried along with it. The member 34 which bears on the spring at 44 further stains the spring as it moves to a central position and the spring thus tends to maintain the member in eitherof the end positions determined by a slot 32 in the cover. When the member 34 moves to the Fig. 4 position a projection 49 at its end engages member 31 moving to the left and releasing the button 23. The spring 39 is strong enough to overcome the contrary force of the bimetallic element.
Patent GB-645245-A (GB)
Title: Improvements in or relating to liquid sealed centrifugal pumps
IPC: F04D9/02
Filed: 1948-07-12
Abstract: 645,245. Centrifugal pumps ; stuffing-box substitutes. LA BOUR, H. E. July 12, 1948, No. 18735. Convention date, April 9. [Classes 110(i) and 122(v)] The rotor shaft 4 of a centrifugal pump extends through a stationary sealing sleeve 7 which terminates in an annular flange 9; the shaft is connected to a sealing drum 37 which carries two sets of liquid working blades 39, 41. The blades 41 open out to the full inner diameter of the drum 37 so that the clearance 42 between the flange 9 and the inner periphery of the drum constitutes the sole restriction to flow of liquid between the two sets of blades. The drum 37 carries impeller blades 6 which operate within a cylindrical housing 1. The latter is clamped between annular seats 18 and 15 formed on upper and lower casing members 2 and 3 respectively. The sleeve 7 is clamped to the upper casing member 2 in a fluid-tight manner by means of a nut 34 and packing 8. A priming charge of liquid initially stands halfway up an intake trap 13. When the pump starts, liquid is expelled through ports 22 and returns through ports 19. The circulation of liquid continues until the air has been removed from the suction passages, after which all the ports serve for the discharge of the pumped liquid through throats 20 into an annular discharge trap 21. A hinged flap 30 retards the backward flow of liquid which occurs when the pump is stopped. The sealing blades 39 and 41 and the clearance 42 provide an annular body of liquid, U-shaped in cross-section, which acts as a liquid seal on the suction side of the pump. The blades 41 are made less effective than the blades 39. For this purpose, the blades 39 have a forward curvature at their inner ends, and the blades 41 either have a backward curvature or are fewer in number than the blades 39. The arrangement may be such as to cause a constant or occasional outrun of liquid through the sleeve 7. The housing 1 may be of the volute type described in Specification 537,015. Specification 559,086 and U.S.A. Specification 2,367,032 also are referred to.
Patent GB-719271-A (GB)
Title: Improvements relating to knitted articles of footwear and to a method of and machines for producing the same
Inventor: SAUNDERS ALFRED PERCY
IPC: D04B9/10
Filed: 1952-07-24
Abstract: 719,271. Knitting. WILDT & CO.,. Ltd. July 24, 1952, No. 18778/52. Class 74 (2). The terry instruments 8 of a circular superposed cylinder machine as described in Specification 607,883 are modified by providing each of them with one of four terrying butts 8d, 8d<1>, 8d<2>, 8d<3>, the butts 8d and 8d<1> being associated with the series of instruments 1 co-operating with the instep needles and the butts 8d<1> and 8d<3> being associated with the series of instruments H co-operating with the heel needles. The butts 8d are formed on alternate instruments of its series and the butts 8d<1> are formed on the intervening instruments. The butts 8d<2> and 8d<3> are formed on the instruments of their series in a similar order. By so actuating the instruments, by providing levers having noses which are alternately brought into engagement with the corresponding butts of each series, an article of footwear can be produced in which terry loops TL are produced in alternate sinker wales SW1, SW3 on alternate courses C2, C4, C6, and in the intervening sinker wales SW2, SW4 in the intervening courses C1, C3, C5, C7. The terry loops may be otherwise interspersed by suitable positioning of the instruments and butts. As described in the prior Specification the terry instruments may act as knock-over bits in conjunction with the needles when in the upper cylinder.
Patent GB-329201-A (GB)
Title: Improvements relating to domestic hot water boilers
IPC: F24H1/24
Filed: 1929-06-19
Abstract: 329,201. McDowall, Steven, & Co., Ltd., and Cunningham, P. June 19. 1929. Block or slab form boilers.-A boiler 1 provided with front extensions 3 and lateral extensions 5 and 6 is surrounded by a case 4 so that gases from the grate 2 pass over the top and down the back of the boiler 1, and up over the inner surfaces and down over the outer surfaces of extensions 3, finally passing under extensions 5 and 6 to flue 13. A baffle 12 directs the gases down the back of the boiler. Doors 8 and 9 are provided in extensions 3 and in door extension 5. Circulation pipes 10 and 11 are attached to extensions 6. In a modification, extensions 5 and 6 are replaced by baffles.
Patent GB-297536-A (GB)
Title: Improvements in or relating to apparatus for playing an electrical clock dial game of skill
IPC: A63F9/00
Filed: 1927-07-15
Abstract: 297,536. Garner, H., and Waight, W. July 15, 1927. Games of skill.-Apparatus for playing a game of skill comprises an electric motor for driving a figure along a given track, coin or like actuated mechanism for closing the circuit of the motor, means whereby the player can readily arrest the travel of the figure at any point of its travel, and means whereby when the figure is arrested at a given point in its travel a device indicating a score or win is set in operation. A coin or the like inserted in a slot 7 comes to rest with its lower edge resting on a platform 10 carried by a pivoted arm 11 which is thus depressed so as to close the circuit of a motor geared to a pointer 3 rotatable over a dial 2. As the pointer rotates the player endeavours, by pulling out a handle 15, to arrest it at a predetermined position, for example, the noon point. The handle is connected to the pivoted arm 11 and when pulled out draws the pivoted arm laterally from beneath the coin shoot thereby dropping the coin into a shoot 17 and allowing the pivoted arm to rise and break the motor circuit, thus stopping the pointer. If the handle is pulled out at the correct moment a contact strip on the spindle of the pointer bridges a gap between two contacts 21, 22 and rings a bell and may also cause an electromagnet to be energized so as to produce a record of the success upon a paper strip. To prevent intermittent closure of the bell circuit when the pointer 3 is rotating the movement of the handle 15 may be utilized to close a normally broken switch in the bell circuit.
Patent GB-1080684-A (GB)
Title: Improvements in or relating to electric analogue circuits
Inventor: YEOMANS KENNETH ALFRED
IPC: G06G7/163
Filed: 1965-05-04
Abstract: 1,080,684. Electric analogue calculating. BRITISH IRON & STEEL RESEARCH ASSOCIATION. May 19, 1966 [May 4, 1965], No. 18817/65. Heading G4G. It is shown that for computing the weight per unit length W of a homogeneous uniform elongate member where R 1 , R 2  are the weight reactions at two supports spaced D apart where S is the displacement of a point from its adjacent end. The expression is computed by an electric circuit wherein a transformer T stabilized by a Zener diode Z, of which one winding energizes series variable resistances representing R 1  and R 2  to produce a voltage proportional to R 1  S in series with a voltage proportional to - R 1  x R 2  D derived from series resistances Ra, Rb energized from a second winding of the transformer. The combined voltage is applied to emitter follower transistors TR 1 , TR 2  to energize series variable resistors R 1 , R 2  to produce a current 1 I 2  representing - above, which is amplified W in grounded base transistor TR 3  to produce a corresponding voltage across resistance R c , which can be varied according to a required weight W r  to produce a voltage proportional to the corresponding length of material X. The voltage may operate a servo system determining the position of stop for a saw cutting off the required length. The supports may comprise mechanical spring balances linked to rotate shafts operating variable resistances directly, or through digitizers selecting appropriate fixed value resistances.
Patent GB-274494-A (GB)
Title: Improvements in or relating to transformers
IPC: H02M7/06
Filed: 1927-07-15
Abstract: 274,494. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). July 16, 1926, [Convention date]. Polyphase transformers for changing 3- phase current into current of 3n phases, n representing a whole number greater than two, are constructed with an ordinary 3-phase core and primary winding and with a suitable number of secondary windings so disposed and dimensioned that their voltage vectors form a closed reentrant angled polygon, for example as shown in Fig. 1, which is the vector diagram for 21 phases. To reduce stray fields, separate windings may be fitted one within another and suitable auxiliary coils may be provided. A neutral point may bet constituted by adding two or more windings the voltage vectors of which form radii of the polygon, as in Fig. 2.