baber/WOPTO huggingface dataset:
Patent GB-1129223-A (GB)
Title: Improvements in or relating to speed sensing circuits
Inventor: FELLERMAN BERNARD FREDERICK
IPC: G01P1/10
Filed: 1967-02-10
Abstract: 1,129,223. Measuring angular speed electrically. SMITH INDUSTRIES Ltd. Sept. 19, 1967 [Feb. 10, 1967], No. 6444/67. Heading G1N. In a system for operating a signalling or safety circuit when the speed of rotation of shaft, e.g. of a vehicle, sensed by an inductive pick-up or tachogenerator, exceeds a preset value, a fail safe device is also provided for automatically operating the circuit if the pick-up becomes disconnected from it. As shown, the A. C. output from a tachogenerator whose frequency is proportional to the speed of rotation of the shaft is fed via terminals 10, 11, Fig. 1, and pulse shaper 1, producing square wave pulses of constant amplitude, to a temperature compensating diode pump 2 whose D. C. output voltage is indicative of the frequency of the input pulses. This voltage is supplied to a bistable level sensing circuit 3, comprising two transistors 20, 21, normally biased to their off states. When the input voltage reaches a certain level determined by the voltage between the slider of a potentiometer 36 and lead 33, connected to one terminal of the vehicle battery, the other terminal of the battery being connected to lead 32, the transistors 20, 21 conduct causing the deenergisation of relay 23 and closing of contact 24 of a signalling or safety circuit. The input to the level sensing circuit 3 is also provided by the potential on the collector of a transistor 25 whose base is connected to lead 10. Providing there is a D. C. path between the leads 10, 11 through the tachogenerator the transistor remains conductive and the potential of the collector at a low level. If however this path is broken, the transistor becomes non-conductive with the resulting increase of the potential on the collector and the triggering of the circuit 3. In a modification in which the diode pump is replaced by a diode-transistor pump and emitter follower circuit, Fig. 2 (not shown), two bistable level sensing circuits (3), (7) are provided arranged to be triggered at different input potentials to operate two indicating or safety circuits, both circuits being triggered if the connection from the tachogenerator is broken.
Patent GB-1062399-A (GB)
Title: Tractor track pin bushings
IPC: B62D55/088
Filed: 1966-02-14
Abstract: 1,062,399. Endless tracks. CATERPILLAR TRACTOR CO. Feb. 14, 1966 [April 5, 1965], No. 6457/66. Heading B7H. The track pin bushing, for an endless track comprising pairs of links each connected at one end by a track pin and at the other by a bushing rotatable on the pin of the adjacent pair of links, has an external surface of oval crosssection. The track is arranged with a thick wall of the bushing at the part most subject to wear, i.e. the part engaged by the roots of the teeth of a track drive sprocket. In Fig. 4 (not shown) the ends of the bushing are of circular crosssection where they enter the ends of a pair of links and flush with the outside surfaces of the links.
Patent GB-373665-A (GB)
Title: Reciprocating pump for raising or conveying concrete and the like substances
IPC: F04B15/02
Filed: 1931-03-02
Abstract: 373,665. Valve closure members. KOOYMAN, J. C., 52, Pletterijstraat, The Hague, and DIJKMAN, J., 13, Tulpstraat, Voorschoten, both in Holland. March 2, 1931, No. 6491. Convention date, March 8, 1930. [Class 135.] Pinch cocks.-In a piston or diaphragm pump for concrete &c. suction and delivery valves are replaced by means for partially obstructing the inlet and discharge pipes 7, 8. For this purpose rubber sections 5, 6 in the pipes may be compressible by means of tongs 10, 11 operated by cams 12, 13 on the crank shaft. The discharge pipe may be mounted on a movable carriage 8<1> to permit the movements of the sections 5, 6. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modification, Fig. 5 (Cancelled), in which a rubber section 5 is compressed by jaws 15<1>, 16<1>, integral with racks 131, 14<1>, engaging a pinion 12<1>, which is oscillated by a cam 1<1>, through links 11<1>, 6<11>, 31. A yielding connection 7<1> is inserted in the rod 6<11>. This subject-matter does not appear in the Specification as accepted.
Patent GB-896489-A (GB)
Title: Improvements relating to access joint assemblies for pipelines
IPC: B08B9/02
Filed: 1960-02-25
Abstract: <PICT:0896489/III/1> A device for allowing access to a pipeline for the introduction therein of internal protective coating apparatus, comprises a tubular member 16 adapted to be coupled to the pipeline and connected by a tubular member 20 to a tubular member 18, stop valves 22 and 24, 26 respectively disposed intermediate the member 20 and between the latter and the members 16, 18, an air pressure supply line 44 connected with the member 20 between each pair of stop valves, and valves 46, 48 in the supply line for controlling communication with the member 20.  There may be a coating material supply line 56 connected to the member 16.  As shown, the air supply manifold 42 includes a pressure regulator 50, a pressure gauge 52, and a bleed valve 54; the material supply line 56 contains a valve 58, and in communication with the member 16 is a bleed line 60 containing an observation window 62 and a bleed valve 64.  In operation, and with the valve 24 open and the valves 22, 26 closed a plug is introduced into the flared opening of the member 18 and into the member 20, the valve 24 being then closed and the plug, driven on opening of the valve 46, by compressed air past the now open valve 22 into the direction of the valve 26.  Valves 22, 46 are now closed and valves 26, 48 opened so that air pressure drives the plug into the pipeline. Coating material is introduced between the plug and the valve 26 by opening the valve 58, valve 64 being also opened to bleed trapped air from the pipeline.  The rise of coating material in the observation window 62 indicates the point at which the valves 58, 64 should be closed.  A second plug is introduced into the pipeline, and air from the supply line 40 drives the coating material trapped between the plugs in a downstream direction of the pipeline.  U.S.A. Specification 2,480,358 is referred to.
Patent GB-451290-A (GB)
Title: Improvements in or relating to grinding or lapping machines
IPC: B24B37/08
Filed: 1935-03-04
Abstract: 451,290. Lapping - machines. HAHN, H., and SAUTER, H., (trading as HAHN & KOLB, [Firm of]), 14, Konigstrasse, Stuttgart, Germany. March 4, 1935, No. 6755. Convention date, March 3, 1934. [Class 60] A lapping-machine for flat or cylindrical work-pieces comprises two lapping discs a, b, of which the lower disc a is driven, whilst the upper is driven either at a different speed or in the opposite direction, or is free to rotate or may be braked, and between the discs is situated a work-holder c provided with openings d for the work pieces. The holder is moved round bodily by an adjustable-throw crank-pin h on a shaft within the hollow shaft of the lapping- disc a, and in order that all parts of the holder may perform the same motion, two parallel links i are pivoted at one end to brackets k on the holder, and at the other end by ball joints on adjustable parts p to levers m connected to a shaft n; the holder is supported by the crank-pin h and also by adjustable plates q. Adjustment of the parts p and of the height of the plates q allows of the treatment of work of different thicknesses.
Patent GB-810171-A (GB)
Title: Improved steam cooker
Inventor: GLENSY JOHN HYMAN
IPC: A47J27/04
Filed: 1957-02-28
Abstract: 810,171. Steam cooking apparatus. SELFMARKETING SERVICE Ltd. Feb. 28, 1957, No. 6767/57. Class 28 (1). A steam cooker comprises a water-heating container above which is a steam heating chamber with a peripheral flange which overlaps an upward extension or collar on a cover disdosed above the container and around the steam chamber so that condensate from the outside of the steam chamber does not run on to the water container. The cooker comprises a rectangular housing 1 containing a circular water tank 4 heated by an electric immersion heater 6 connected by a plug 7 to the mains supply, a plug ejector safety device being provided. A cover 10 with a depending rim 33 is mounted above housing 1 by angle brackets 9 so as to be clear of an asbestos sheet 11 supported on a tank cover 12 mounted just clear of the tank body on an asbestos string 13. Tank 4 is filled with water through filler cup 30 which has a drain plug 31 and is marked with permissible high and low levels. Tank cover 12 has an upright hollow extension 14 in which a tube 15 is supported with an orifice 16 for the outlet of steam into a cylindrical chamber 17 with a removable lid 18. The top of tube 15 is closed and rounded to support a carrier 19 with partitions 20 for foodstuffs. The base of chamber 17 is formed by an annular bowl 21 with a central upright part 22 enclosing the hollow extension 14 and held by a lock-nut 23 threaded thereon. Bowl 21 is connected by an outlet pipe 28 with a drain cock 29. The inside edge of cover 10 has a lip 24 which is welded to the inside of a collar 25 whose top is disposed just inside and above the bottom edge of a flange 26 at the top of a ring 27 which embraces chamber 17.
Patent GB-1305788-A (GB)
Inventor: ABILDGAARD WILLIAM H
IPC: B42B5/08
Filed: 1970-02-12
Abstract: 1305788 Bookbinding ABILDGAARD LABORATORIES Inc 12 Feb 1970 [13 Feb 1969 29 Oct 1969] 6831/70 Heading B6A Books may be bound by means of two strips 56, 62, Figs. 13, 14, one 56 of which carries equally-spaced pins 59 which are inserted through corresponding-spaced apertures in the sheets 60 of the book, and the other 62 of which has apertures to receive the pins, the ends of the pins being subsequently sheared off if necessary, and secured to the strip 62 by forming heads 67 thereon by pressure or heating. Apertured cover sheets may be placed on the top and bottom of the stack of sheets. The holes in the strip 62 may be countersunk to receive the pin heads. Each strip may have pins thereon (Fig. 4) engaging apertures in the other strip. In Fig. 14, each strip has a flange 58, 64 extending over the back of the sheets 60. A strip 68 of foam-type pressure-sensitive tape may be positioned between the flanges and adhered to the sheet edges, and a second strip 69 of such tape may be applied over the first strip between extensions 57, 63 of the binding strips 56, 62. The spine of the book may be finished off by means of pressure adhesive tape (51, Fig. 12) which adheres to the exposed edges of the sheets and to the edges of the binder strips. The pins may be of a flexible plastics material to allow easy opening of the book (Fig. 3A). Rectangular-sectioned pins may be provided. Instead of binding strips such as 56, 62 which extend the full width of the book, a number of shorter strips 21y, 24y, Fig. 11, spaced apart may be employed (Fig. 10) in which case a channelshaped cap 46 of plastics material may be slid endwise over the end attached by adhesive. A number of binder strips may be assembled parallel to one another and attached to one another by breakable pieces (31, Fig. 5) or by being stuck on a sheet (32, Fig. 6) to form a cartridge of strips for use in a machine carrying out the binding operations. Alternatively binding strips may be assembled end to end, (Figs. 7-9) for the same purpose. Apparatus comprises a table 131 having a ledge 135 on which a strip 21 with pins 22 is mounted, with sheets placed over the pins. A press head 156 which may be swung clear as shown dotted, carries an apertured strip 24 and is movable by handle 151 through a chain drive to place the strip 24 over the pins 22 and compress the belt. The press head also carries shear blades 163 operable by cams to shear the excess length of pins. The pin ends are then deformed to fan heads by a riveting attachment, hot forming or spinning, Figs. 20-22 (not shown).
Patent GB-434442-A (GB)
Title: Improvements in or relating to electric plug and socket couplings or connectors
IPC: H01R13/53
Filed: 1934-03-05
Abstract: 434,442. Plug couplings. WALSALL CONDUITS, Ltd., MILLARD, A. E., and STEVENS, A. H., Excelsior Works, West Bromwich. March 5, 1934, No. 6878. [Class 38 (i)] The contacts of a plug - and - socket coupling are housed each within an insulating shroud, the shrouds of corresponding contacts telescoping together and enclosing the engaged contacts. The sockets 16 are closely surrounded by the shrouds 28 which overlap the ends of the sockets leaving an entry aperture of substantially the same diameter as the pins 15. The shrouds 19 surrounding the pins 15 are spaced therefrom so as to fit over the shrouds 28 of the sockets. The shrouds carrying the contacts are loosely supported on discs 22 between which a flange 21 on each shroud fits, a projection 29 fitting a corresponding gap in one disc to prevent relative rotation. Grub screws 6 let into the projections 29 clamp the leads 18 to the contacts, and a gland for the cable comprising a screw ring 35, a split ring 36 and a washer 37 of rubber or leather is provided. The earthing socket 31 may be partially surrounded by a shroud 32. The plug member 8 is formed with a flange 9 that fits within the casing 10 of the socket member, the two being fastened together by a screw ring 12.
Patent GB-545754-A (GB)
Title: Improvements in or relating to lathe centres and the like
IPC: B23B23/02
Filed: 1941-05-30
Abstract: 545,754. Steel alloys. FRANCOIS CEMENTATION CO., Ltd., LAZENBY, T., and NEELANDS, A. R. May 30, 1941, No. 6919. [Class 82 (i)] [Also in Group XXH] A lathe or like centre C has a core of high tensile steel and four or other number of longitudinal hard alloy flush inserts d<SP>1</SP> converging to a solid point D. The alloy preferably contains 2-6 per cent. boron carbide 25-30 per cent. chromium, 10-15 per cent. cobalt, 15-20 per cent. molybdenum and the remainder iron. Alternatively the carbide of tungsten, titanium or tantalum may be employed.
Patent GB-349922-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41F27/10
Filed: 1930-01-31
Abstract: 349,922. Printing-machines. ADDRESSOGRAPH CO., 901, West Van Buren Street, Chicago, U.S.A. Jan. 31, 1930, No. 6949/31. Convention date, Nov. 1, 1929. Divided on 348,025. [Class 100 (ii).] Printing-surfaces.-A printing-cylinder for use in a printing-machine as described in Specification 348,025 and with an impression cylinder as described in Specification 349,921 is constructed of a ring 20 with bevelled edges 23, 24 to co-operate with the bevelled edges 14, 15 of a drum 10 over which the ring is slipped. The electrotype or other printing-surface 21 is connected by screws to the ring 20, and the ring is correctly registered by means of a pin 26 on the drum and a slot 25 in the ring, this connection also preventing circumferential movement of the ring. The ring 20 is securely held between the bevelled edges 14, 15 of the drum, and bevelled edges 18 of a clamping ring 17 which fits over the supporting shaft 6 and is pressed aixally by a hand-operated nut 28. The outer part of the drum 10 is connected by a conical web 12 to a sleeve 9 which fits on the shaft 6.
Patent GB-744617-A (GB)
Title: Improvements in or relating to electrical interrupters
Inventor: PHILLIPS ARTHUR CLAUD
IPC: H01H3/00
Filed: 1953-03-13
Abstract: 744,617. Interrupters. KELVIN & HUGHES, Ltd. March 4, 1954 [March 13. 1953], No. 7014/53. Class 38(5) A high-speed interrupter which may be used for providing discontinuous current from a D.C. supply comprises flexible contact blades 20, 21 which bear on an eccentrically-mounted ball or roller bearing 16 and are thus brought into and out of engagement with fixed contacts 30. The contacts 30 are also mounted on blades and have backing blades 31 to provide frictional damping and adjusting screws 32. The bearing 16 is disposed on a spindle between flanges which extend eccentrically in an opposite direction to the eccentricity of the bearing to provide dynamic balance. For spark suppression, each pair of contacts is bridged by a resistance 35 and condenser 38.
Patent GB-1185459-A (GB)
Title: Nuclear Reactor Containment Vessels and Methods of Constructing Such Vessels.
IPC: G21C1/00
Filed: 1969-02-10
Abstract: 1,185,459. Reactor pressure vessels. STONE & WEBSTER ENG. CORP. 10 Feb., 1969 [29 March, 1968], No. 7084/69. Heading GEC. A pressurized water nuclear reactor is contained within a reinforced concrete vessel together with steam generators and a pressure suppression pool. The reactor 31 is supported in the compartment 24 of the structure 20, which is separated from the inner surface of the containment vessel 10 by the annular space 21. The lower chamber 26 contains the pressure suppression water pool 34. With a leakage in the primary coolant system, the space under dome 11, and the space 21, fill with steam which enters the lower chamber through the openings 35 and the conduits 37.
Patent GB-609839-A (GB)
Title: Improvements relating to television receivers
IPC: H04N3/20
Filed: 1946-03-07
Abstract: 609,839. Television. COSSOR, Ltd., A. C., WYNN, A. H. A., and FRANCO, M. March 7, 1946, No. 7136. [Class 40 (iii)] [Also in Group XL (c)] In a television receiver utilizing a cathoderay tube for the production of the visual image means are provided for displacing the electron beam from the fluorescent screen upon failure of scanning. Amplified impulses from V3, generated by the frame deflection oscillator (not shown) are developed across the frame deflecting coils FSC in series with which is connected a valve V4 normally biassed to cut-off by a negative control potential developed at the point A in the grid circuit of the line deflection oscillator V1 and supplied to the grid of V4 through a filter C2, R3. When the control potential is removed from the grid of V4, due to failure of the line deflection generator, a steady direct current flows through the coils FSC which is sufficient to displace the electron beam off the screen. In a modification a second valve may be connected in parallel with V4 and controlled by a negative potential provided by the grid circuit of the frame deflection oscillator (not shown) so that the beam is deflected off the screen upon failure of either the line or frame scanning generators.
Patent GB-117896-A (GB)
Title: Improved Box or Carrier for Live Birds.
Inventor: BERSEY ALFRED ERNEST
IPC: A01K31/00
Filed: 1918-04-29
Abstract: 117,896. Bersey, A. E. April 29, 1918. Partitioned and cellular boxes; fittings, internal; lined boxes; ventilating boxes.-A box or carrier for live chickens, &c. has a vertical dividing-board 7 sliding in between guide-strips 8, and other boards 10 supported on ledges on the board 7 and ends 2. Each of the four compartments thus formed contains one or more nest-frames 11 of plain or corrugated cardboard &c. ; these frames fit in tightly or are secured by clips, and they are without top or bottom and are made with air-holes, edge recesses, &c. for ventilation. Strips 15 of fannel &c., secured to the boards 10 and to a top plate 14, depend into the nest-frames and form a warm covering to the birds. A layer of hay &c. is placed in each nest-frame. The box has a hinged lid 4, which may be fastened by a wire passing through staples and secured by a psdiock. Air-holes are formed in the sides and ends of the box.
Patent GB-1363982-A (GB)
Title: Foil for closing a container
IPC: B65D51/20
Filed: 1972-02-16
Abstract: 1363982 Closing containers CHRISTENSSONS MASKINER & PATENTER AB 16 Feb 1972 [1 March 1971] 7186/72 Heading B8C [Also in Division B5] A closure for an openable container 10 comprises a laminated foil, a first layer 26 of which includes a rupturable region partly defined by lines of weakness 27 in the material of the layer, a second layer overlying the first layer in faceto-face contact therewith and having a tongue 21 cut therein which extends from a rupturable region 28 defined by lines of weakness 19 in the material of the second layer, the second rupturable region overlying the first and extending to a greater extent over the foil than the first, a portion of the second layer in a zone of its lines of weakness overlying the lines of weakness of the first layer and, being sealingly attached to the first layer. As shown, the closure is applied to a cup-like container and the tongue 21, when operated to open the container tears the second layer along the line 19 and tears the first layer of the laminate along the region 28 extending from the lines of weakness 27. The container is reclosable with a separate cover 18. The inner and outer members of the laminated cover are formed from aluminium foil coated with polyethylene by means of which the foils are welded together. The outer side of the outer foil is covered by a polyester material for receiving a printed or written image.
Patent GB-1406489-A (GB)
Title: Detection of corrosion by a radiometric technique
IPC: G01B15/02
Filed: 1972-02-17
Abstract: 1406489 Detecting corrosion in tubes IMPERIAL CHEMICAL INDUSTRIES LTD 12 Feb 1973 [17 Feb 1972] 7426/72 Heading G1A. Corrosion in the walls of tubes in a bundle of such tubes, is detected without dismantling the bundle, by the use of a radio isotope thickness gauge suitable for insertion into a pair or more of tubes when in situ in the bundle. The simple apparatus of Fig. 1 comprises a radio-active source 1 and detector 3 mounted within adjustable stainless steel arms 2, 4 which are linked by telescopic connectors 5. In Fig. 2 (not shown), two such detector arms are provided for a common source arm and it is suggested that up to six such detector arms may be grouped round a central source arm. The procedure for detecting corroded tubes is outlined with reference to Fig. 3 (not shown). Different diameter ends may be inserted at 6, 7 into arms 2, 4.
Patent GB-765660-A (GB)
Title: Color-image-reproducing apparatus
IPC: H04N5/74
Filed: 1955-03-15
Abstract: 765,660. Cathode-ray tubes. HAZELTINE CORPORATION. March 15, 1955 [April 16, 1954], No. 7524/55. Class 39(1). [Also in Groups XL(b) and XL(c)] The cabinet 10 of a projection-type colour television receiver includes at one face a display screen 11 and a detachable cover 12 which permits access to the adjustable elements of the image projection apparatus 15-20 whilst observing the screen. The projection apparatus comprises a unitary structure as described in Specification, 765,659 [Group XL(b)] made up of a box-like member 21 supporting crossed dichroic mirrors 18, 19 and having attached to three sides cathode-ray projector units 15, 16 and 17, reproducing component colour images. The construction of one of the projector units is illustrated in Fig. 2. The body 26 of the unit, which mounts a spherical mirror, 45‹ apertured plane mirror, and correction plate (none of which is illustrated in detail), is secured to box 21 by bracket 27 whilst the cathode-ray tube 29 is supported at its neck to a mounting 28, so as to be adjustable relative to the optical system. Mounting 28 carries upper and lower members 30 of which only the upper is shown, so as to pivot about sockets 31 engaging the extremities of the members. Springs 32 and 33 maintain the mounting against an adjustment screw 34 accessible from the front of the apparatus through slot 35. Upper and lower control knobs 36 engage threads on members 30 and permit axial adjustment of the mounting. The deflection yoke 39 is fixedly secured on the inner side of mounting 28, whilst the focus coil 40 is carried on the outer face by a base plate 41 which is slidably mounted on a pair of studs 42 and maintained by springs 43 in a position set by an adjusting screw 45. A magnetic shunt 47 in the form of a cylinder fits within the focus winding and may be displaced axially by adjusting screw 48.