baber/WOPTO huggingface dataset:
Patent GB-123500-A (GB)
Title: Improvements in Vacuum Fuel Feed Systems.
Inventor: JAY WEBB
IPC: F02M37/02
Filed: 1918-10-14
Abstract: 123,500. Jay, W. Oct. 14, 1918. Vacuum apparatus.-In liquid-fuel supply apparatus wherein fuel is raised by suction from a low-level main tank to a supplemental tank which feeds the carburettor, a timing chamber open to the atmosphere and separate from the supplemental tank is provided, such chamber being supplied with fuel by gravity and having as its function the control of the admission of air to the supplemental tank and therefore the period of its filling and discharge. The supplemental tank B encloses a vacuum chamber 1 which is in communication with a source of suction through a pipe 2 and with the low-level main tank A through a pipe 3 which projects into the chamber for some distance below the top there.. of. The main tank encloses the timing chamber 6 which comprises a false bottom 16 with aperture 17 and is adapted to receive fuel from the pipe 3 through a check valve 8. A pipe 12 connects the vacuum chamber 1 with the space between the true and false bottoms of the chamber 6, which space is open to the atmosphere through an aperture 20. The main tank is open to the atmosphere through an orifice 9 and the timing chamber 6 through an orifice 10 in a cap 15 which may be removed to fill the chamber at starting. Assuming the timing chamber to have been filled and to have overflowed through 14 to fill the main tank, suction causes the tank 1 to be filled and the chamber 6 to be emptied through the pipe 12 the parts being so proportioned that by the time the chamber 1 is filled, the chamber 6 is empty and the mouth of the pipe 12 exposed so that atmospheric air is admitted to the chamber 1 and its contents are therefore discharged through the valve 5 into the tank B. The liquid in the chamber 1 above the mouth of the pipe 3 is then siphoned back through the pipe 3 and flows past the valve 8 into the chamber 6, a valve 3a preventing flow into the tank A. The fuel entering the chamber 6 passes through the aperture 17 and eventually closes the mouth of the pipe 12 when suction is again dominant in the chamber 1. Delay in sealing the pipe 12 may be produced either by baffles 18 forming a tortuous path for the fuel, or by placing a hole 19 above the lower end of the pipe. The rate of flow through the pipe 12 may be adjusted by a valve 11.
Patent GB-1176610-A (GB)
Title: Device for Pressing Extruded Sheaths
IPC: H01R43/04
Filed: 1968-04-08
Abstract: 1,176,610. Stamping; making cables. PIRELLI S.p.A. 8 April, 1968 [23 May, 1967], No. 16752/68. Headings B3A and B3Q. [Also in Division H1] An oil-filled cable has its sheath G pressed on to a plug T at each end by a device comprising a frame 19 with opposed jaw supports 20, 22 and four radially movable jaws 21, 23, 25, 26. The jaws each has a cylindrical inner surface (28), Fig. 5 (not shown), and their longitudinal edges (31), (33) have interengaging teeth (32), Fig. 6 (not shown). The inner surface of each tooth has a curved portion (35) and a planar portion (36). The jaws are moved together by an hydraulic ram 24 which moved the lower support 22 relative to the fixed upper support 20. The jaws 21, 22 may be integral with their supports. The jaws 25, 26 are moved by cam surfaces on the supports and returned by springs 37. The sheath is extruded over the core (12), Fig. 1 (not shown), and the pressing device (16) moves with the cable during the pressing. A corrugater (17) is provided downstream from the pressing device. The frame 19 may be pivotally mounted to allow for slight rotation of the device.
Patent GB-977502-A (GB)
Title: Improvements in or relating to an arrangement for use in the examination of an internal surface of a tubular member
IPC: F16L55/00
Filed: 1961-05-09
Abstract: 977,502. Inspecting the interior surfaces of tubes. S. CALLAWAY. Feb. 13, 1962 [May 9, 1961], No. 16762/61. Heading F2P. A method of examining the internal surface of a hollow member comprises the steps of inserting a layer of impressionable material, e.g. " Plasticene (Registered Trade Mark), into the member, pressing the material against the internal surface thereof to form a negative facsimile of the surface and removing the material from the member. A cylindrical member 11 of a synthetic resin, e.g. " Tufnol " (Registered Trade Mark), or a metal, possesses a bore 12 with which a number of cylindrical, piston housing bores 16 communicate. Four material carrying platens 19 are guided on the ends of pistons 17 and are held resiliently by bands 22. Caps 23, clamped by nuts 25, protect the retracted platens from contact with the internal surface of the hollow member. A fluid, e.g. air, carbon dioxide, oil or water, under pressure actuates piston 17 from bore 12 one end of which is sealed. The pistons may also be actuated by cam means, or electrical means, e.g. by solenoid action. The platens may be housed in a recessed portion of the periphery of the cylindrical member and each secured to a spring retractable piston. A resilient, inflatable sac may be provided to support the platens.
Patent GB-690855-A (GB)
Title: Improvements in and relating to mixing and refining machines, in particular for cocoa and chocolate paste
IPC: B01F7/16
Filed: 1951-07-16
Abstract: 690,855. Mixing appliances. PONISCH, M. July 16, 1951, No. 16820/51. Class 86 A mixing and refining machine, in particular for cocoa and chocolate pastes, comprises a basin-like casing 1 jacketed for temperature control and including a concentrically arranged cylindrical chamber 2 having openings 5 near the bottom, a vertical driven shaft 10 extending through the chamber and carrying a propeller 12 which causes the paste to circulate upwardly through the chamber and secured to the top of the shaft 10 a cover plate 6 provided with paddle wheel blades 7 overlapping the chamber 2 and having a central opening 8 over which the mouth of a fresh air supply pipe 9 opens. The paste impelled upwardly through the chamber 2 is driven by the blades 7 against the cover plate 6 from which the paste is thrown outwardly as a mist and air entering the opening 8 is also driven outwardly in a layer below the paste mist to sweep through the paste mist before escaping through the top of the machine. The blades 7 are at a sharp angle to the cover plate 6 and have slits provided in them close underneath the cover plate which effect some rubbing down and refining action as the paste passes through them and cause uniform distribution of the paste over the plate 6. Further refining members, for example round or oval rods or propellers, may be provided on the shaft 10 between the paddle 6, 7 and propeller 12. Scrapers 17, 18 are supported on the air pipe 9 which is rotatably driven through a chain drive from the driven shaft 15.
Patent GB-945522-A (GB)
Title: A box and a blank for forming it
IPC: B65D5/02
Filed: 1961-05-09
Abstract: 945,522. Cartons. P. L. V. MONOT. May 9, 1961 [May 9, 1960], No. 16864/61. Heading B8P. A carton blank comprises interhinged strips A ... F greater in number than the number of sides of the box and is preprinted on both sides so that at least three different sets of information, e.g. instructions in different languages, can be shown on the outside of the box depending on the way the blank folded to form the box. As shown either the strips F, E or the strips A, B may be arranged on the outside of the box. The strips have end tabs 3, 6, 7 for closing the ends of the box.
Patent GB-501047-A (GB)
Title: Improvements in governor mechanisms for steam turbines
IPC: F01D17/26
Filed: 1937-06-17
Abstract: 501,047. Fluid - pressure servomotorcontrol systems. ALLEN SONS & CO., Ltd., W. H., and HUTCHINSON, A. C. June 17, 1937, No. 16918. [Class 135] A governing mechanism for steam turbines, of the kind comprising a series of spring loaded relays controlled by a single control valve has the; control valve arranged for co-operation with a plurality of regulating ports displaced from one another in the direction of movement of the valve to control the relays individually and successively. The main throttle valve g and a number of valves controlling additional nozzle groups of a turbine are actuated by fluid pressure acting on spring loaded power pistons g<1>, h<1> under the control of a single piston valve member actuated by a centrifugal governor a, and having beats b<1>, b<2> co-operating with ports d, e. The port d overlaps the beat b<1> so that movement of the valve produces a variable pressure in the conduit leading to the power cylinder. Theports leading to the power cylinders of the several auxiliary valves may be arranged helically around the seat of the piston valve b<1>, b<2>.
Patent GB-500097-A (GB)
Title: Improvements in or relating to tools adapted for bending metallic strips and the like
IPC: B21D7/02
Filed: 1938-06-07
Abstract: 500,097. Angular bending. HUDSON, L. G. June 7, 1938, No. 16933. [Class 83 (ix)] A tool for bending curtain rails &c. is formed of an arcuate strip former c attached to an apertured plate f and a handle a. The rail is anchored by the aperture g in the plate f and is bent by hand about the former. The aperture g may be open-ended.
Patent GB-900243-A (GB)
Title: Control apparatus e.g. for food vending machines
IPC: H01H89/04
Filed: 1960-05-13
Abstract: 900,243. Thermal switches. RANCO Inc. May 13, 1960 [May 13, 1959], No. 16933/60. Class 38 (5). [Also in Group XVIII] A thermally-actuated device, e.g. a switch, may have its operation blocked by an element movable manually into blocking position and subsequently out of blocking position by a timer. The thermal element 30 has a head 30f bearing on a lever 31 which is pivoted at 31d and biased clockwise by an adjustable spring 32 into engagement with an arm 23c of a lever 23 pivoted at 23b. Another arm 23a of lever 23 is connected via a snap-action tension spring 24 with a movable contact arm 20. Upward movement of head 30f normally allows spring 32 to tilt lever 31 and thus lever 23 to open the contacts, whilst downward movement of the head 30f closes the contacts. The blocking element consists of a slidable bar 26 having a projection 26a bearing against the lever 23 so that the spring 32 acts through levers 31, 23 to urge bar 26 to the right. The position of the bar 26 is controlled by a cam 35 having flats 35a, 35b and an intermediate sloping portion 35c. When it is desired to prevent thermal operation of the switch, the cam is rotated manually to wind the mechanism of the timer 36 and to set the flat 35a against the bar 26 which is thrust to the left to prevent opening movement of levers 31, 23. Eventually, the timer rotates the cam to a position where flat 35b comes opposite the bar which thus moves to the right to allow normal operation of the switch again.
Patent GB-222551-A (GB)
Title: Improvements in or relating to apparatus for the reproduction of sounds
IPC: H04R31/00
Filed: 1923-06-29
Abstract: 222,551. Seibt, G. June 29, 1923. Sound-reproducing diaphragms of cup-shaped formation, for acoustic instruments such as telephones and phonographs, are made of thin light metal by clamping the periphery of the diaphragm and expanding the remaining potion by applying air or other uniform pressure. Figs. 3 and 4 show two forms of apparatus suitable for making aluminium diaphragms 7 to 10 cms. in diameter and 0.002 to 0.003 cms. in thickness, the cavity being 1.4 cms. or more deep. When it is desired to produce a formation other than spherical a matrix v, Fig. 4, and air pressure up to above 5 atmospheres are employed. Preferably the process is carried out in several stages, the metal being heated at each step to about 300‹ to 350‹ C.
Patent GB-737296-A (GB)
Title: Improvements in or relating to polishers
IPC: A47L11/16
Filed: 1953-06-19
Abstract: 737,296. Floor polishers. ELECTRO-LUX. June 19, 1953 [June 30, 1952], No. 16976/53. Class 138 (1). In a polisher of the type comprising a device for the distribution of wax over the surface to be polished, preferably in the form of a jet finely divided by atomization, the wax-distributing device is actuated by an electromagnet operated by remote control. As shown, a switch 7, on the handle 4 of an electric - motor driven floor polisher, can energize the circuit of the electromagnet 8 to attract its pivoted armature 9 against the action of springs (not shown) and thus depress a piston 10 in a cylinder mounted within a liquid wax reservoir 13. The cylinder and piston are provided with valves so that when the piston is depressed wax in the cylinder is forced through a channel in the piston to an atomizing nozzle 17 secured to and movable with the piston. When the electromagnet is de-energized the armature is returned by the springs to its normal position, shown, and the cylinder is recharged with wax from the reservoir.
Patent GB-120281-A (GB)
Title: Improvements in Bearings for the Knife-edges of Weighing Machine or other Levers.
IPC: G01G21/16
Filed: 1917-11-19
Abstract: 120,281. Pooley & Son, H., and Dobson, J. Nov. 19, 1917. Knife-edge bearings. -A bearing for weighing-machine or other levers comprises a knife-edge 6 resting on a block 8 which is formed with a convex seating and is free to rock in a recess 10 in a second block 11. A knife-edge 13 at rightangles to the edge 6 supports the block 11 on a lever 5 or like member.
Patent GB-439634-A (GB)
Title: Treatment of water-soluble compounds
Filed: 1934-06-08
Abstract: Water-soluble borates are obtained in an anhydrous and friable condition by fusing a borate such as borax or a sodium borate ore and cooling the fused mass suddenly to obtain a granular, fibrous, or flocculent mass.  In carrying out the process, the fused borate may be introduced in thin streams into cold water and after fragmentation be quickly withdrawn and adherent water removed; or a stream or streams of the fused mass may be sprayed with cold water under pressure or be subjected to a blast or blasts of compressed air or steam.  The invention may be applied to concentrates of Tincal and Rasorite.  According to the Provisional Specification, the process of the invention may be applied to water-soluble compounds generally.
Patent GB-1512756-A (GB)
Title: Low pressure automatic lubrication system
IPC: F16N5/02
Filed: 1976-04-27
Abstract: 1512756 Nozzles HITACHI Ltd HITACHI ELEVATOR & SERVICE CO Ltd and NASHIN KIKOH CO Ltd 27 April 1976 [30 April 1975] 17085/76 Heading B2F [Also in Division F2] A lubricating system, particularly for lubricating moving chains &c, has a pump 3, means for controlling the flow of lubricant 6, 7 from the pump, and an outlet nozzle 8, the nozzle having a circular end face m 1  which includes an orifice opening into the face, the dimensions of the orifice being such that 0.3mm # d 1  # 0.8 mm; d 2  # 2d 1 ; l 1  # 6d 1  where d 1  is the diameter of the orifice, l 1  the length of the orifice. Preferably the orifice is formed at the end of a passage 19 whose diameter is greater than twice that of the orifice. The side walls m 2  of the nozzle leading to the circular face, may be tapered. The nozzle may be provided with a cylindrical hood (8b, Fig. 6 not shown) which prevents dust &c. reaching the orifice. Alternatively a separate cover may be fixed to the nozzle (Fig. 5, not shown). Lubricant is fed from the pump to the nozzle via a control valve 4 which incorporates a relief valve 34 and a throttle valve 36. The throttle valve contains elements responsive to variations in the temperature of the lubricant such that the valve operates to maintain a constant flow of lubricant regardless of the lubricant temperature. Means are described (Fig. 7, not shown) for operating the system for only limited periods during the operation of the apparatus to be lubricated.
Patent GB-542262-A (GB)
Title: Improvements in or relating to the mercerising and lustreing of textile fibres
IPC: D06M11/38
Filed: 1940-11-30
Abstract: 542,262. Bobbins. BRAND WOOD, J. Nov. 30, 1940, No. 17097. Addition to 529,636. [Class 120 (iii)] [Also in Group IV] A perforated holder upon which, according to the process of the parent Specification, textile rovings or the like, or fully twisted or spun or doubled yarns are wound with winding tension sufficient to draw the component fibres to their full or natural length, the fibres of one winding layer being nipped and held fast by succeeding winding layers, and in which mercerizing and other liquids necessary in mercerizing are passed through the wound mass by differential pressure, is modified by providing the perforated holder with a resilient or diametrically yieldable winding surface. The inner layers of the wound material are thus enabled to contract radially to a small extent and in a similar manner to that of the outer layers, during the treatment with mercerizing lye. The degree of contraction permitted is not sufficient to prevent the lustreing effect of the treatment. There may be used a rigid metal holder covered with a sheet of very soft rubber or a plurality of such sheets superposed, a suitable adhesive being used to make the holder and covering a composite whole. The covering has perforations registered with those in the holder. Instead of the resilient rubber sheet, the perforated holder may have a covering of permeable textile fabric or it may have wound thereon with a cross wind a layer of elastic thread e.g. thread with a rubber core and cotton yarn covering.
Patent GB-1261395-A (GB)
Title: Improvements in or relating to a circuit arrangement for controlling a typewriter in data processing installations
IPC: G06F3/09
Filed: 1969-04-02
Abstract: 1,261,395. Electric selective control of printers. OLYMPIA BUROSYSTEME G.m.b.H. 2 April, 1969 [5 April, 1968], No. 17285/69. Heading G4H. A circuit for preventing successively actuated type hammers in a typewriter from entangling controls the periods between successive type hammer operations in response to digital signals which define the hammer to be operated and its position within the typewriter typeblock and comprises a number of code sensors FF1-FF8, a D/A converter for converting the digital signals into an analogue form indicative of their positional significance, a store C1 and C2 for the analogue signal, a difference amplifier DV for deriving a difference signal from successive pairs of analogue signals, and a means, FF11-FF13, differentially responsive to the difference signals for controlling the periods between successive type hammer operations. The digital signals are carried on a punched tape, sensed by flip-flops FF1-FF8, and converted to analogue form by the converter D/A. When an input signal is sensed an input occurs at ST which renders one of the "AND" gates U5 or U6 conductive, thereby energizing the corresponding relay A or B to close one of the associated switches a or b. The ST input also resets the flip-flops FF11-FF13 and FF10. The analogue signal is, in the embodiment described, one of four voltages corresponding to one of four groups of type hammers within the typeblock. The voltage references one of the capacitors C1 or C2 and is stored. As one capacitor charges the other, which stored the previous analogue signal, discharges in the differential amplifier DV which responds to the difference between the voltages on the two capacitors. The flip-flops FF11- FF13 have successively higher thresholds and a number, corresponding to the output of the amplifier DV, become set. The outputs of these flip-flops together with that of FF10 are passed to the "AND" gates U1-U4 as shown. The monostables M1-M4 have successively larger time constants and therefore scan the lines 26- 31 in turn when triggered by a pulse on line 21 which also serves to set FF10. The gate, U1- U4, selected by flip-flops FF11-FF13 passes a pulse at a time within the scan cycle corresponding to the delay required. The resulting pulse or line 33 enables the type hammers, resets flipflops FF1-FF8 and is fed back via "AND" gate U7 to repeat the cycle. The tape is advanced by signals on line 27 which are interrupted during carriage return movements.
Patent GB-621461-A (GB)
Title: Improvements in air guns
IPC: F41B11/647
Filed: 1947-02-13
Abstract: 621,461. Air guns. LAWRENCE, A., and LASZLO, S. E. Feb. 13, 1947, No. 17379/48. Convention date, Feb. 28, 1946. Divided out of 621,417. [Class 119] An air gun comprises a cylinder 22 pivoted at 14 to the gun frame 12 and housing a spring- controlled piston, a slide 80 carrying a hook 84 for engaging the piston, and a link 88 pivotally connected at 87 to the hook and at 90 to the frame, the arrangement being such that when the cylinder is turned about its pivot to cock the piston and reaches the position in which the pull on the piston is at the greatest angle to the cylinder then the hook and the pivots 87 and 90 are substantially in alignment. In the construction shown, the hook acts upon the flange 30 of a sleeve 28 which extends forwardly from the piston. Specification 621,417 is referred to.
Patent GB-440028-A (GB)
Title: Improvements in and relating to the speed control of alternating current motors
IPC: H02K17/38
Filed: 1934-06-12
Abstract: 440,028. Motor-generators; induction machines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, ADKINS, B., 13, Fisher Avenue, and LIDDIARD, H. W. C., Bulawayo, Dunchurch Road, both in Rugby. June 12, 1934, No. 17400. [Class 35] The slip regulator in the secondary circuit of an induction motor is excited by a frequency changer, the brush-gear of which is moved by a pilot or torque motor energized in dependence on the induction motor load. In the form shown, the slip regulator 10 cascaded with the main machine 1 coupled to a fly-wheel 2 and generator 3, has in addition to the series winding 11, windings 13, 14 connected to the exciter 15 as shown. The brush-gear of the exciter is moved by a torque motor 8 energized in proportion to the load of the main motor 1. If the motor drives a generator supplying a colliery winding motor, it may be desirable for the motor 1 to self excite as a generator to permit winding to continue after an interruption of the supply, the motor 1 then serving as the supply for the motor 23 driving on exciter 22. for the generator and winding motor. To obtain this result, the winding 13 is opencircuited and some of the resistance in series with winding 14 is short-circuited. Specification 402,498 is referred to.
Patent GB-1358391-A (GB)
Title: Positioning mechanism
IPC: B41J19/30
Filed: 1971-05-27
Abstract: 1358391 Linear electric motors TELETYPE CORP 27 May 1971 [28 May 1970 (2)] 17453/71 Heading H2A [Also in Divisions B6 and G4] Type selecting means for positioning a frame 18 carrying types 22 with respect to a print hammer 24 comprises a pair of linear electric motors in the form of coils 50, 52 having perpendicular active coil portions 54, 56 located in a magnetic field between a permanent magnet 30 and a soft iron plate 34 connected by side pieces 40, 46 to a back plate 32 fixed to the magnet 30. The hammer 24 is mounted on a carriage 72 for letter spacing movement by means of a third coil 68. In a modification (Fig. 6), two coils (140, 142) having parallel active coil portions can move in unison or one with respect to the other to position a type frame (18) through a scissors linkage.
Patent GB-1422793-A (GB)
Title: Heat exchanger element
IPC: F28D1/02
Filed: 1972-04-15
Abstract: 1422793 Heating liquids in bulk; domestic heating supply systems F S HOWARD 2 April 1973 [15 April 1972] 17495/72 Addition to 1238712 Headings F4A and F4S A heat exchange element comprises a boss 1 adapted (e.g. as by external threading) for attachment at an aperture in a water tank 10, and a tube 8 (shown as a U-tube but which may comprise a helical coil) having ends 2, 3 slidably extending through apertures in the boss 1 and sealed therein (e.g. by packing glands as indicated in Fig. 2). In use, the tube 8 of steel or copper may be extruded with helical external fins 9 and a rifled interior surface. The tube ends for about 12 inches are plain so that the extent to which the tube projects into the tank can be determined on assembly, any excess of tubing at the ends being thereafter removed. The tube ends are connected by means (not shown) to flow and return pipes for hot water.