baber/WOPTO huggingface dataset:
Patent GB-582432-A (GB)
Title: Improvements in or relating to bracelets, necklaces and like articles of jewellery
IPC: A44C5/10
Filed: 1944-03-03
Abstract: 582,432. Jewellery. CARTER, W. C. March 3, 1944, No. 3968. [Class 43] [Also in Group XXV] A necklace, bracelet or similar article of jewellery comprises pairs of outer links 1 interconnected by rod-like members 2, the members 2 associated witt adjacent pairs of outer links being connected by a central laminated link 3 to form a chain. The links 1 and laminations of the links 3 are preferably o: plastic material and o different colours, and the members 2, which are pre ferably also of plastic material, are cemented ir holes in the outer links 1 End links of the chain may be connected together by a pair of outer links 1a resiliently secured as by a spring 2b to a central link so as to extend beyond one end of the chain and so as to be movable apart to engage apertures therein over the projecting ends of a rod 2a.at the other end of the chain.
Patent GB-764648-A (GB)
Title: Sheet separating mechanism
IPC: B65H3/08
Filed: 1955-02-10
Abstract: 764,648. Feeding sheets. DEXTER FOLDER CO. Feb. 10, 1955 [May 10, 1954], No. :3993/55. Class 100(1) Sheet-separators:-In apparatus for lifting sheets sequentially from a pile 11 and tautening the edge of each sheet during the lifting thereof, the hollow air tube 34 carrying each sucker 38 is bent at 37 and reciprocates between guide rollers 40, 41 whereby the sucker is moved transversely of the pile flug up the top sheet 33 into There are two suction separators, one over each rear corner of the pile, and each is mounted on two side plates 12, 13 mounted for adjustment transversely of the piles on cross shafts 18, 19 which are mounted for adjustment longitudinally of the pile in side frames. Compressed air from two tubes 29, 30 arranged near each rear corner of the pile fluff up the top sheet 33 into contact with the suckers 38 which then rise to lift the sheet to a position where it is then taken by sheet-forwarding devices. The air tubes 29, 30 communicate through a Y-elbow 26 with a'tube 22 which passes through a hole in a portion 21 of a block 14 which spaces the side plates 12. 13. The tube 22 can be adjusted vertically with respect to the top of the pile 11 by screwmeans 25 and clamp 23; but is free to slide upwardly. The sucker 38 may be of the type which, when sealed by a sheet, is automatically flexed upwardly a short distance relative to the carrier tube 34, or it may be of known cylinder and piston type. Of the two opposed guide rollers 40, 41 for the tube 34, the roller 40 is shown as mounted in fixed bearings and the roller 41 is carried by pivoted links 45 and urged towards the roller 40 by springs; thus the sucker is urged resiliently to stretch a sheet. In a modification, the fixed roller may be on the, opposite side, and the sucker is thus forced outwardly non- resiliently. Each sucker tube 34 is lifted, against the action of a spring 61, by a cam 59 which co-operates with a follower on pivoted lever 56, the free end of which has pivoted thereto a link 54. The link 54 is pivoted on a pin carried by a collar 52 secured to the tube 34. The collar 52 engages a stop block 69 which thus limits the downward movement of the sucker 38. The block 69 is secured between two arms 67 pivoted on a fixed stud 68 at one end, and pivoted at the opposite ends to a screw-threaded rod 72 which can be adjusted vertically by a screw 73 even when the separator is operating. In a modification, the arms 67 carry a spring- urged pawl which engages the teeth of a fixed arcuate rack. Specifications 582,078 and 760,891 are referred to.
Patent GB-1501443-A (GB)
Title: Method and apparatus for binding a book
IPC: B42C11/04
Filed: 1975-01-29
Abstract: 1501443 Reciprocating pumps J KORSGAARD 28 Jan 1976 [28 Jan 1975] 4011/75 Heading F1A [Also in Division B6] In a book binding machine, a pump supplies glue to an applicator tube which is oscillated to and fro on a carriage as the latter is moved across a book cover. In a first embodiment, Fig. 9, the pump comprises a cylindrical portion 122 mounting a continuously rotatable sleeve 123 with a port 127 which provides intermittent communication between two channels 128, 189 in the cylindrical portion, one leading to a glue reservoir 120, the other to a screw cup 125. The sleeve 123 supports a cam 135 which transmits rotational drive via a spring plate 137 and projection 136 to the cup. The cup is thus screwed on to the portion 122 forcing glue through an associated heated applicator tube 126, until the latter hits a stop when spring plate 137 yields and cup 125 is rotated back to its initial position by a spring. A heating element 133 is provided. In a second embodiment, Fig. 7, a reciprocable plunger pump 100 is used. A solenoid 108 is pulsed causing a heated applicator tube 104 to be moved between stop plates 96, 98, at the same time reciprocating the plunger 19 via linkage 101, 102 to pump glue to the tube. The plunger and a glue reservoir may also be heated.
Patent GB-840661-A (GB)
Title: Improvements relating to releasable fastenings for doors and the like
Inventor: CASSEY BARRIE DONALD
IPC: E05B17/00
Filed: 1957-02-06
Abstract: 840,661. Latches. CASSEY Ltd., W. Feb. 6, 1958 [Feb. 6, 1957], No. 4036/57. Classes 44 and 65(1). A door or liked hinged panel, e.g. a door of a refrigeration chamber, is provided with one or more latching units each preferably comprising a pair of elements namely, a spring-loaded bolt 22 located within a casing 18 on the door frame 11 and an L-shaped bracket 28 adjustably mounted on a serrated base plate 27 secured to the door and carrying a roller 31 which is freely rotatable about a vertical axis and is adapted, during the final stages of door closure, to cooperate with the head 21 of the bolt 22 in an over-dead-centre relationship. As shown, the head 21 of the bolt 22 is tapered towards its outer end and presents an outer vertical planar face 32 at about 45 degrees to the plane of the frame 11, an intermediate normal face 34, and an inner face 33 inclined at 25 degrees, so that greater force is required to retract the bolt 22 during opening of the door than when the latter is being closed. This greater force is applied by an operating unit comprising a support 35 in which is mounted a swinging lever 43 by means of a pivot bolt 41, the upper end of the lever having an upwardly-extending handle 44 and the lower end being provided with a freely rotatable roller 45 adapted to be forced into contact with a bearing plate 52 on the door frame 11. A second operating unit is mounted on the inside of the door, Fig. 4 (not shown), this unit comprising a horizontal pivoted lever provided at one end with a long handle and at the other end with a nose 58 which, in the closed position of the door, abuts a block secured to the frame 11.
Patent GB-1537263-A (GB)
Title: Aircraft ground-proximity warning systems
IPC: G08G5/02
Filed: 1975-01-30
Abstract: 1537263 Ground-proximity warning systems PLESSEY CO Ltd 23 Jan 1976 [30 Jan 1975] 4058/75 Heading B7W A visual or aural warning 9, 10 of a groundproximity warning system is actuated in dependence on aircraft air speed. The signal from an airspeed indicator 7 is fed through an analogue-to-digital converter 8 to a digital microprocessor.
Patent GB-584780-A (GB)
Title: Improvements in or relating to aircraft wings
IPC: B64D27/06
Filed: 1945-02-19
Abstract: 584,780. Aircraft wing structures. BRISTOL AEROPLANE CO., Ltd., and FRISE, L. G. Feb. 19, 1945, No. 4194. [Class 4] An aircraft wing comprises a streased-skin structure carrying the greater portion of the wing load and a leading and/or trailing edge structure whose surfaces do not materially assist in carrying the load, the surfaces of such structure being removable to afford access to a power-plant housed therein. In the form illustrated, the wing structure adjacent the power-plant comprises a front spar 7, side ribs 8 and a central master rib 9 to which members the metal skin is attached, the engines being mounted on the master rib 9 in the manner described in Specification 584,779 or Specification 584,781. The upper and lower wing surfaces to the front of the spar 7 and between the ribs 8 are provided with portions 11, 12 pivotally mounted at their forward edges 13, 14, to the leading edge 15 to give access to the engines. The leading edge portions 15 may be made detachable to permit of the complete power-plant being withdrawn from the wing in a forward direction. Air enters the engine compartment through openings 18 at the leading edge of the wing, the discharge of the air being controlled by pivoted flaps 23, 24, at the rear edges of the wing portions 11, 12. To reduce fire hazard, the openings 18 may be closed by pairs of flaps 27 which are normally folded against each other, but are capable of being opened by a hydraulic motor operated by the pilot, or automatically in the event of the engine compartment temperature exceeding a predetermined value. Air-tight. doors 22 are provided in bulkheads 21 at the rear of the engine compartments to afford access to the engines from the wing.
Patent GB-864264-A (GB)
Title: Improvements in or relating to electrical components
IPC: H03B5/26
Filed: 1958-02-08
Abstract: 864,264. Valve oscillating circuits. MAYO, C. G., and WIGAN, E. R. Jan. 30, 1959 [Feb. 8, 1958], No. 4194/58. Class 40(6) [Also in Groups XXXVI and XL(b)] A frequency determining network for a selective amplifier or an R.C. oscillator comprises two electric components (see Group XXXVI) arranged to form a four terminal network having series resistance and shunt capacitance. As shown in Fig. 3 a frequency determining network has a first branch Y, comprising a first component RC1 in series with a capacitor Cl, connected in series with a second branch Z which comprises a second component RC2 in parallel with a second capacitor C2. The input to the network is applied across the two branches in series, and the output is taken across the branch Z. For the oscillator shown, the input voltage V1 to the network is taken from the output of an amplifier G and the output voltage V2 is fed back to the input of the amplifier to produce oscillation. Resistors and further capacitors may be connected in series and/or parallel with the components or branches to modify the response characteristic, for example to compensate for stray capacitance. The component is in the form of a distributed series R and parallel C line, either open circuit or short circuit at one end, the two terminals of the other end constituting the terminals of the component. Alternatively to modify the performance a finite termination, e.g. a parallel R.C. combination may be added.
Patent GB-575709-A (GB)
Title: Improvements relating to apparatus for handling and treating flexible metallic sheets
IPC: C23G3/00
Filed: 1944-03-07
Abstract: 575,709. Apparatus for electrolysis. BRASSERT & CO., Ltd., H. A., and UDALL, W. March 7, 1944, No. 4217. [Class 41] A rotatable drum 10 of cylindrical form, and suitable for conveying magnetizable sheets through an electrolytic plating bath or pickling bath, comprises a series of conductive, and preferably, magnetic facing plates 12 in watertight contact with, and preferably bonded to, a rubber or other surround 13 moulded and bonded to the drum so as to form a continuous surface free from projections Beneath each plate are electromagnets 14 . . . 21 and current is conveyed by leads 22 ... 29 to a grid 30 in contact with the plates. The sheets 31 to be treated overlap the surround and are magnetically held during their passage through the container 11, the attraction being such as to prevent access of electrolyte to their backs. Rubber also protects the magnets and poles. In operation, sheets are taken from a stack by, for example, suction cups and deposited at proper intervals on a synchronous conveyer 34 whence they are passed to rollers 35, 36 and held by electromagnets 37 to the roller 36. At the point where the leading edge meets the drum, the appropriate electromagnets therein are energized and hold the sheet until it reaches the lower exit roller 38, the electromagnet of which passes the sheet on an exit conveyer, the drum magnet being then automatically de-energized. The exit rollers also serve as squeegees and the electromagnets thereof may serve to neutralize residual magnetism in the sheets. The fields of rollers 36, 38 are designed to extend from the conveyer exit point to the nip with the drum, but the magnets are adjustable to vary this arrangement. The facing plates 12 may be crossed by other rubber strips so as to take half-size sheets. Specification 472,989 is referred to.
Patent GB-901828-A (GB)
Title: Improvements relating to permanent magnet assemblies
Inventor: WATSON EDWARD
IPC: H01F7/02
Filed: 1958-02-10
Abstract: 901,828. Magnets; automatic control systems. FAIREY CO. Ltd. Feb. 4, 1959 [Feb. 10, 1958; Sept. 25, 1958], Nos. 4327/58 and 30725/58. Classes 35 and 38 (4). [Also in Group XXXVI] A magnet assembly, e.g. for a nuclear magnetic resonance detector, has at least one variable magnetic shunt to regulate the flux across the air gap. As shown, shunts are provided at both ends of the assembly, each comprising two soft iron arms 21 pivoted as at 19 between two parallel non-magnetic plates 22. The effect of each shunt depends upon the gap 23 between its arms, which is adjusted by cables 27, connected to a micrometer winch 29, acting against springs 33. The cable connection 35 to one arm of each pair is adjustable. The winch may be adjusted manually or by a servomotor controlled, through an amplifier, by nuclear resonance in a known sample of material 33<SP>1</SP> arranged in the main gap to maintain the flux constant. In an arrangement described in the first Provisional Specification to ensure stable operation with this automatic control, the shunts comprise two composite rods, e.g. having iron centre portions and brass ends, extending between the yoke members 1, 2 and screwed into one of them so that rotation by servomotors causes displacement of the iron portions and so varies their shunting effect. Also described therein is a temperature-corrected arrangement in which an iron shunt-bar is pivoted or resiliently attached to the lower yoke adjacent its lower edge and the yoke is bored to receive an expansion rod. The rod abuts against an adjustable stop at one end while the other bears against the shunt so that changes in the length of the rod varies the gap between the shunt and the upper yoke. Specification 901,827 also is referred to.
Patent GB-562456-A (GB)
Title: Improvements in oil seals
IPC: F16J15/32
Filed: 1943-03-18
Abstract: 562,456. Oil seals. ANGUS & CO., Ltd.; G., and GOODWIN, R. March 18, 1943, No. 4398. [Class 122 (v)] In an oil seal having a press fit in or on a machine part, the sealing flange c of the packing washer is pleated to increase its radial flexibility. The washer may be supported in a metal casing, Fig. 1, or may be constructed with a stiff inner or outer periphery, Fig. 2, having a press fit in or on its support. The sealing flange may be loaded by a garter spring e.
Patent GB-285647-A (GB)
Title: Improvements in folding wringing and mangling machines
IPC: D06F45/00
Filed: 1927-02-17
Abstract: 285,647. Whalley, H. Feb. 17, 1927. Folding mangles and wringers.-On a mangle &c. wherein the roller frame A is pivoted at 3 to the stationary frame C and is raised and lowered by the engagement of a pinion 4 on the lower roller shaft with a toothed quadrant on the stationary frame to prevent the turnover frame from descending past the horizontal position.
Patent GB-740074-A (GB)
Title: A process for treating mineral lubricating oil
Inventor: STRATFORD CHARLES WALCOTT
IPC: C10G17/06
Filed: 1951-02-23
Abstract: <PICT:0740074/III/1> Mineral lubricating oils are purified by treatment with sulphuric acid in a plurality of steps with separation of the sludge formed after each step, neutralizing at elevated temperature and pressure the acid-treated oil from all the acid-treating steps, separating the neutralizing agent and then washing with steam in a closed system in one or more stages, the steam being condensed and separated from the oil after each washing stage.  Air may be completely eliminated throughout the treatment and the crude oil may be preheated and subjected to de-aeration and dehydration under reduced pressure before the acid-treating stages. The oil may be finally dehydrated.  As shown, oil fed by a pump 11 is heated by means of a heat-exchanger 14 and enters the flash evaporator 17, where dissolved air and moisture are removed under reduced pressure.  In the acid contactors 22, 33 the oil is intimately mixed with sulphuric acid and then passed to the centrifuges 25, 35, where it is separated from the sludge after each acid treatment.  These centrifuges include a device for excluding air, such as a purge of inert gas blown through the head and a sludge seal 38 to prevent air from entering where the sludge is drawn off. In the flash evaporator 53 the oil is stripped of sulphur dioxide and other gases under reduced pressure.  The oil then passes to the neutralizing contactor 62, where it is mixed at elevated temperature and pressure with neutralizer from the tank 75, and thence to the settler 67, where it is separated from the neutralizer.  In the first steam wash stage 70, the oil is mixed with steam and then passed to the chamber 81, where the steam is condensed, the oil being drawn off from the top and passed to the next steam wash stage 85 and condenser 92.  Finally, the separated oil is drawn off from the top of the condenser 92 and dehydrated in the evaporator 95 under reduced pressure, the purified oil being drawn off from the pipe 99. Heat-exchangers such as 19, 50, 57, 64 and 79 are inserted between the stages to control the temperature of the oil as required, and they are automatically controlled by known devices 20, 51, 58, 65 and 80 respectively. Specification 665,169 is referred to.
Patent GB-1216584-A (GB)
Title: Directly heated cathode
Inventor: KERSTETTER DONALD R
IPC: H01J1/18
Filed: 1968-01-29
Abstract: 1,216,584. Cathode-ray tubes. SYLVANIA ELECTRIC PRODUCTS Inc. 29 Jan., 1968 [1 Feb., 1967], No. 4548/68. Heading H1D. A directly heated cathode 13 which is freely suspended in an electron gun for a C.R.T. comprises a circular planar central portion 14 with an electron emissive coating 15 on one face, a first reduced width portion 16 extending radially from the central portion 14 to a first support 27 to provide a first electrical connection to the cathode, and a second similar reduced width portion 16<SP>1</SP> extending, diametrically opposite the first portion 16, from the central portion 14 to second support 27<SP>1</SP> to provide a second electrical connection. Both reduced width portions 16 and 16<SP>1</SP> have similar cross-sections such that they provide sufficient resistance heating and thermal isolation for the cathode. The cathode is preferably secured by enlarged portions 17, 17<SP>1</SP> at the end of reduced portions 16, 16<SP>1</SP> to supports 27, 27<SP>1</SP> by the suspension arrangement described in Specification 1,216,583. The central portion 14 of the cathode is preferably of larger diameter than aperture 25 in associated electrode 23 of the electron gun. Specific dimensions of an example are given.
Patent GB-926949-A (GB)
Title: Regulation of forced-flow once-through steam generators
IPC: F22B35/06
Filed: 1962-02-06
Abstract: 926,949. Fluid-pressure servomotor control systems. SULZER FRERES S.A. Feb. 6, 1962 [Feb. 15, 1961], No. 4560/62. Class 135. A method of automatically regulating a forced-flow once-through steam generator which comprises influencing both the feed flow and the quantities of fuel and combustion air by a main signal dependent upon steam temperature sensed in the region of the final superheating and subjected to conversion with a PID characteristic, and by an auxiliary signal dependent upon a temperature of the working medium, sensed at a point upstream of that at which the main signal temperature is sensed, and subjected to conversion with a PD characteristic. In the first embodiment, Fig. 1, the forced-flow once-through steam generator comprises a water supply pipe 4, an economizer 1, a conversion zone 2, a superheater 3 and a furnace 8 having fuel and air supply pipes 9 and 10. A temperature detector 15 is located at the end of the superheater 3 and its signal is passed to PID units 17 and 18 connected respectively to addition points 21 and 22. A temperature detector 23 is located at the conversion zone 2 and its signal is passed to PD units 25, 26 connected to the addition points 21, 22. From the addition point 21 the signal is fed to the addition point 30 connected to the servomotor 6 of the feed water regulating valve 5. From the addition point 22 the signal is fed to an addition point 33 connected to servomotors 13, 14 which control fuel and air supply valves 11 and 12 respectively. A pressure-measuring element 36 transmits signals to PID units 38, 39 connected respectively to addition points 33 and 30. A measuring device 43 responds to the CO 2  content and is connected to the addition point 35. The PID units 38, 39 may receive a desired value signal W, a turbine output signal N, a fixed programme signal P or a main frequency signal f. The detecting elements 15, 23 and the PID, PD units 17, 25 are constructed as shown in Fig. 2. In another example, Fig. 3 (not shown), the output signals from the PID units 17, 18 form desired value signals for the units 25, 26 respectively. The addition point 35 is replaced by a controller and the pressure detector 36 by a flow detector. In another example, Fig. 4 (not shown), the steam from the superheater 3 is fed to a turbine driving an electric generator and the signal from the pressure detector 36 is transmitted to a PID unit which controls a turbine supply valve. A hand wheel or turbine speed-operated setting unit may be associated with the PID units. The superheater 3 may be divided into two stages between which is located a water or wet steam injection valve actuated by a two or three characteristics controller responsive to signal from a temperature detector after the superheater.