baber/WOPTO huggingface dataset:
Patent GB-1028894-A (GB)
Title: Improvements in or relating to gyratory crushers
IPC: B02C2/04
Filed: 1962-11-14
Abstract: 1,028,894. Gyratory crushers. NORDBERG MANUFACTURING CO. Nov. 14,1962 [Nov. 14, 1961], No. 43101/62. Heading B2A. A gyratory crusher has a sealing means between the gyratory head 406 and its support which comprises a sliding ring 434, Fig. 2, arranged to slide in the head and a compressible ring 454 located and compressed between the support 40 and sliding ring so that the latter is out of contact with the support, except through the compressible ring. As described, the head has a depending skirt 426 with a seal 428 including upper and lower retainers 430,432, Fig. 2, connected to the head so as to engage the sliding ring 434 between them. The upper retainer 430 has a frustospherical lower surface 436 engaging a frustospherical upper surface 438 on a sealing flange 440 on the ring. The lower surface 442 of the flange 440 is also frusto-spherical and engages a corresponding upper surface 444 on the lower retainer 432. The sliding ring 434 has an upstanding portion 446 with an upwardly and inwardly tapered inner surface 448 and an outwardly-flared top portion 450. The sealing ring 454 is positioned in an annular groove 452 in the head support 40, and engages the tapered surface 448 of the sliding ring 434 and remains in contact with the ring 434 as the crushing head gyrates. The ring 434 is L-shaped and supports a grease packing in a channel 456. Lubricant notches 460 around the groove 452 permit lubricant flow to the liner 44 from channels 462 in the head past the sealing ring 454 and into the driving gears of the crusher, via the channels 464 in the head support. In operation the sealing ring 454 is compressed against the inner tapered surface 448 of the sliding ring 434 so that metal-to-metal contact between the ring 434 and the head support 40 is avoided. The supporting means for the bowl assembly B and the means for driving the crushing head E are constructed as described in Specifications 1, 028, 895 and 1,028,896.
Patent GB-1431473-A (GB)
Title: Counter-balance means for sectional overhead doors
IPC: E05F1/06
Filed: 1973-09-13
Abstract: 1431473 Overhead door operation HILLALDAM COBURN Ltd 11 Sept 1974 [13 Sept 1973] 43148/73 Heading E2M In a counter-balance means for a sectional overhead door 1, a spring-biased shaft 13 is provided with cable pulleys 15 around which pass cables 17, extending downwardly from each cable pulley 15, to be attached to the lower edges of the door by means of brackets 19. Each cable 17 is slidably guided in a guide sleeve 45 and a stop 29 on each cable 17 limits the sliding movement of the cable. Spring means 43 biases the stop 29 away from the guide sleeve 45. The shaft 13 is adapted to be rotated against the biassing action of springs 25 by means of a hand chain 23 and a chain wheel 21.
Patent GB-1116415-A (GB)
Title: Production of polyamide moldings
Inventor: JUNG HANS
IPC: B29C41/00
Filed: 1965-10-12
Abstract: 1,116,415. Cast polymerization of polyamides. BADISCHE ANILIN- & SODA-FABRIK A.G. 12 Oct., 1965 [13 Oct., 1964], No. 43162/65. Heading B5A. Copolyamide mouldings are rotationally or centrifugally cast by polymerizing a molten mixture of at least two lactams having at least seven ring members, e.g. capryllactam and caprolactam, with alkaline catalysts and activators, whereby the relative proportions of lactams in the mixture is varied as the mixture, e.g. at 125 C., is being supplied to the mould, e.g. over a period of four minutes to a 500 mm. diameter cylinder heated to 150 C. and rotated at 600 r.p.m. Rollers may be produced, e.g. for calender rolls, which have a differing hardness from the surface to the interior thereof whereby internal stresses and cracking during machining are avoided. The lactam mixture may be introduced to the mould already mixed or via mixing nozzles whereby a mixture of one lactam with the catalyst and a mixture of the other lactam with the activator are supplied through two nozzles or mixtures of each lactam with the catalyst and of each with the activator are supplied through four nozzles. The mould is preferably heated to 80 to 200 C. prior to introducing the polymerization mixture and polymerization is effected with 0À01 to 5% by weight of catalyst and 0À05 to 10% of activator. Examples of lactam catalysts and activators are given, and the mouldings may also incorporate fillers, e.g. aluminium or copper, quartz powder, ground shale, sand, diatomaceous earth or polyamide and other plastics, reinforcements, e.g. glass staple, fleece or fabric, dulling agents, e.g. titanium dioxide or zinc oxide, and lubricants, e.g. graphite, lead powder or molybdenum disulphide.
Patent GB-996167-A (GB)
Title: Improvements in electric contact cables
Inventor: BROADBENT GEORGE
IPC: H01B7/10
Filed: 1962-11-15
Abstract: 996,167. Retractive switches. NORTH WESTERN SPECIALITIES Ltd. Feb. 12, 1964 [Nov. 15, 1962], No. 43224/62. Heading H2B. A contact cable comprises at least two conductors 11 in the form of perforate or meshlike sleeves, each having a core 12 therein, and an outer flexible tube 10, the conductors being held to the interior surface of the tube in spacedapart relation by bonding or adhesion between the cores and the tube. As described, the tube and cores are of plastics material and are fused together. When the tube 10 is compressed, at least two of the conductors are brought into contact to actuate an alarm, the conductors returning to their initial positions upon release of the tube.
Patent GB-898373-A (GB)
Title: Improvements in or relating to inertia operated fuel governors
Inventor: BROAD MICHAEL JOHN
IPC: F02D1/04
Filed: 1959-12-21
Abstract: 898,373. Inertia and centrifugal governors. PLESSEY CO. Ltd. Dec. 9, 1960 [Dec. 21, 1959], No. 43293/59. Class 57. [Also in Group XXIX] In a fuel governor of the kind in which the flow of fuel to an injection nozzle or similar point of consumption is controlled by means of an inertia-operated spill valve 5 which together with its valve seat 3 rotates with a shaft 21 through which the fuel flows and which is opened by inertia action as the speed of the shaft rises, the valve is arranged to move at an angle to the radial direction of the shaft so that tangential inertia forces tend to lift the valve off its seat. The valve 5 is of half-ball shape and is attached to the shaft 21 by a leaf spring 26 which urges it against the valve seat 3. The spring 26 may extend transversely to the axis of the shaft 21 as shown or may extend parallel to the axis. In either case, the valve is acted on by both centrifugal force and tangential inertial force whereby the governor is sensitive to both speed and acceleration. Alternatively, the valve may be arranged to move in a wholly tangential direction so as to respond to acceleration only, other governor means, for example a second similar valve moving in a purely radial direction, being provided to obtain a speed-sensitive control. The shaft 21 may be one of the shafts of a gear-type fuel pump, a cross-bore in the wall of the shaft providing communication between the interior of the shaft and the delivery side of the pump.
Patent GB-1428409-A (GB)
Title: Manufacture of pentachlorothiophenol
IPC: C07C67/00
Filed: 1972-09-20
Abstract: 1428409 Pentachlorothiophenol IMPERIAL CHEMICAL INDUSTRIES Ltd 14 Sept 1973 [20 Sept 1972] 43532/72 Heading C2C Pentachlorothiophenol is prepared by a method comprising reacting hexachlorobenzene with sodium sulphide or sodium hydrosulphide at 50-200‹ C. in an alkanolamine. The alkanolamine may be, for example, tri-isopropanolamine, diethanolamine, methyl diethanolamine and, preferably, triethanolamine.
Patent GB-1122185-A (GB)
Title: Packaging twine
IPC: B65B53/02
Filed: 1965-10-14
Abstract: 1,122,185. Shrink packaging twine. EASTMAN KODAK CO. 14 Oct., 1965 [16 Oct., 1964], No. 43599/65. Heading B8C. A roll of twine is packaged by enclosing it in a wrapper of extruded low density polyethylene having a contraction value upon heating of at least 45% in the extrustion direction and 35% in the transverse direction, and heat-shrinking the wrapper into tight contact with the roll, thereby supporting the roll against collapse and telescoping. The ends of the wrapper may be sealed down or tucked into the hollow core of the roll. Closure discs of cardboard or plastics may be inserted into one or both ends of the package, and a hole may be provided in one of said discs to facilitate withdrawal of the twine. Alternatively, a zone of material which may be easily punched out may be provided in the disc, or if no disc is included a weakened spot may be provided on the wrapper. The wrapper may be in the form of a bag which may be left open along one side to facilitate insertion of the roll of twine. Such a package may be produced by apparatus of Fig. 3, wherein the twine is wound into a roll by a winder 30. An operator places the roll into a thermoplastic bag 32 and after tucking in the ends of the wrapper, inverts the package over a prong 33 on a conveyer 34 which carries it through a heat shrinking oven 35.
Patent GB-901305-A (GB)
Title: Improvements in and relating to anchoring diaphragms in electrolytic cells
IPC: C25B9/19
Filed: 1959-12-23
Abstract: 901,305. Electrolytic cells. INTERNATIONAL ELECTROLYTIC PLANT CO. Ltd., and BOWEN, C. E. Nov. 16, 1960 [Dec. 23, 1959], No. 43651/59. Class 41. [Also in Group XXV] A diaphragm of liquid permeable sheeting is anchored to a rigid projecting lip by folding a part of the sheeting over the lip and against opposite faces thereof and springing a resilient clip or clips of V-section over the fold to clamp the sheeting in sealing engagement with the faces. As shown, applied to the suspension or mounting of permeable diaphragms between electrodes of electrolytic cells, a sleeve or bag diaphragm 2 is suspended from a collecting bell 1 by folding the edge portion of the diaphragm over a bottom edge 1a of the bell and then applying a V-shaped spring clip 3 over the fold. Preferably, the clip extends the full length of the edge 1a In another arrangement, Figs. 3 and 4 (not shown), a flat diaphragm is similarly mounted in an opening of a rigid frame of T- section, the edge of the diaphragm being folded over and secured by the clip to the stem of the T.
Patent GB-1168624-A (GB)
Title: Improvements in Artificial Limbs.
Inventor: BELL GORDON ANDREW
IPC: A61F2/60
Filed: 1965-10-15
Abstract: 1,168,624. Artificial limbs. ROBERT KELLIE & SON Ltd. 7 Nov., 1966 [15 Oct., 1965], No. 43792/65. Heading A5R. An artificial hip joint, to which a prosthetic 1eg is to be attached, comprises a base plate angularly adjustable with respect to the pelvis of an amputee, the base plate having pivoted thereto at a higher level twin strut members of a thigh section and at a lower level a releasable catch arm of adjustable length engageable with a block carried between the strut members thereby to limit or inhibit pivotal movement of the strut members. The hip joint of Fig. 1 comprises a base plate 1 recessed to receive the head 2 of a locking bolt upon which are mounted a pair of wedgesectioned annular discs 4 and 5 and a frustoconical nut 6 (see Fig. 6) having a threaded boss 7 upon which the discs may be rotated relative to one another to angularly adjust the base plate, in the upper part of which is journalled a pivot pin for parallel strut members 10 and 11 of a thigh section. Releasable catch arm 12, which is pivoted to a lug 13 by pin 16 (see Fig. 5) secured to the base plate at a lower level thereof, is in the form of a telescopic threaded rod of adjustable length having oppositely extending studs 14 and 15 at its outer end, thus to give a two-armed head in the form a T. The studs are rotatable about the axis of the catch arm between the position illustrated and a position at right angles thereto; spring-pressed balls 17 entering grooves 18 provide stops in these two positions. Block 19, having an upwardly extending central slot, is fixed between the strut members, pads 21, for example of hard rubber, being fitted to the front face of the block on either side of the central slot. According to their position, the catch arm studs either engage and abut, or pass freely between, these pads. Springs 22 bias the catch arm against upward pivotal movement. To obtain a positive lock when the amputee is in a standing position, the length of the catch arm is reduced so that the studs abut the pads and the rear face of the block abuts buffer surfaces, for example rubber pads 23, of the base plate.
Patent GB-1367501-A (GB)
Title: Tube panels
IPC: F22B37/10
Filed: 1971-09-20
Abstract: 1367501 Heat exchanger tube supports BABCOCK & WILCOX Ltd 20 Sept 1971 [19 Sept 1970] 43816/71 Headings F4A and F4S A tube panel in a vapour generator comprises tube lengths 1 to which plates 3, 3a are fixed by welds 9, 10 the plates being shaped so that their end portions 15a lie between the tube lengths 1, the welds 10 being curved, and brackets 5 are welded to plates 3a and connected to a buckstay 6 by which the panel is supported. The tube lengths 1 are joined by webs 2 to which the ends of the plates 3, 3a are welded. No plate prjects beyond a plane which is tangential to the tube lengths to which it is welded, and the plates, which are of uniform thickness are not more than one and a half times the thickness of the tubes which are also of uniform thickness. A second row of plates aligned with the first, may be provided on the other side of the tube panel.
Patent GB-993136-A (GB)
Title: Improvements in or relating to storage racks
IPC: B65D19/38
Filed: 1961-12-07
Abstract: 993,136. Clips. W. D. TOWNSON. Dec. 7, 1961, No. 43819/61. Heading E2B. [Also in Division B8] A tiering frame for stacking platform pallets includes angle section feet 12 taking over the ends of deck boards 10 and secured by the clip 15 which embraces the foot 12, and fits over an edge stringer 9 between the deck boards 10.
Patent GB-1088448-A (GB)
Title: Electrical resistor substrate
IPC: H01C1/146
Filed: 1965-10-18
Abstract: <PICT:1088448/C1/1> A resistor consists of a thin film 4 or wire of conductive material supported by a substrate with an insulating ceramic centre 2 and conductive metallic or cermet ends 3, the substrate being moulded in one operation from a calcined ceramic mix and metal powder and subsequently fired.  Lead wires 5 may be incorporated in the conductive ends or welded to them.  Resistive coatings which may be applied over the substrate include nichrome, metal films and oxides of thallium, ruthenium, silver, titanium or palladium, in each case with a glass matrix. The resistance may be increased by spiral or other removal of the coating or a resistive wire may be wound round the substrate.  A metal flash, such as one of gold or silver, may be placed over the metal or cermet terminal portions to prevent oxidization of them during application of the resistive coating.  A preferred composition for the ceramic mix is forsterite with barium carbonate, calcium carbonate and silica, an iron-nickel-molybdenum alloy giving satisfactory results in conjunction. Completed resistors may be encased in plastic or other non-conductive jackets by moulding or conformd coating, using any of a number of specified types of synthetic resin.
Patent GB-1118349-A (GB)
Title: Method and apparatus for measuring the concentration of radiation absorbing material
IPC: G01J1/18
Filed: 1965-10-18
Abstract: 1,118,349. Radiation absorptiometers. LKB-PRODUKTER A.B. Oct. 18, 1965 [Oct.17, 1964], No.44107/65. Heading G1A. The concentration of an absorbing substance in a sample is indicated directly from absorption measurements. First and second signals are derived indicative of the incident and transmitted radiation intensities respectively, and the first signal is made to charge a capacitor to a corresponding potential. The capacitor is then discharged through a fixed resistor and the time that elapses before the potential across the capacitor falls to the level of the second signal is directly proportional to the concentration since the exponential decay characteristic of the capacitor matches the exponential relationship between absorption and concentration. Light from the source 1 passes through a sample 4 and a blank 5 to photo-cells 6 and 7. When the capacitor C has had time to charge up to the level determined by the output of cell 7, a control circuit 16 changes over switch 12 and at the same time opens the gate 13 to transmit clock pulses from a generator 15 to a counter 14. Capacitor C discharges through the resistor R, and when its voltage equals the output of cell 6 a differential relay closes gate 13 to end the count. If the count is too small for accuracy, the scale may be automatically expanded by adjusting C or R or the p.r.f. of 15. The photo-cells 6 and 7 may be replaced by a single cell receiving the sample and reference beams alternately, switching means being provided to direct the cell output alternately to the capacitor C and the differential relay.
Patent GB-1245654-A (GB)
Title: Process for reducing the loss due to abrasion of alumina extrudates and of extruded catalysts based on alumina
IPC: B01J21/04
Filed: 1968-09-17
Abstract: 1,245,654. Alumina extrudates. KONINKLIJKE ZWAVELZUURFABRIEKEN V/H KETJEN N.V. 17 Sept., 1968 [4 Oct., 1967], No. 44115/68. Heading C1A. [Also in Division B1 Alumina extrudates are calcined for at least 1 hour at 450-850‹ C., wetted with water suitably in an amount of between 50 and 100% wt. calculated on the weight of calcined extrudate, and then subjected to attrition treatment, dried and calcined in order to increase the abrasion resistance of the alumina. The attrition treatment may comprise a tumbling of the calcined extrudates in the drum of a concrete mixer rotating at 60-80 r.p.m. or may comprise a vibrational treatment in a closed container at a frequency of 20-1000 vibs./min. The attrition treatment normally lasts at least 10 minutes and is continued until between 0À2 and 1% wt. Al 2 O 3  has been removed. The tumbled or vibrated extrudates may be treated with a mineral acid, e.g. HCl, to dissolve 3-5% wt. Al 2 O 3  before the drying and calcining steps. Alumina extrudates of the present invention may be impregnated with platinum salts, dried and calcined to form catalysts. Alternatively, an activated alumina extrudate may be impregnated with platinium salts, dried and calcined and then treated by the method described above.
Patent GB-1197475-A (GB)
Title: Asymmetric Shroud-Propeller Combination for Directional Control
Inventor: GORDON SAMUEL JAMES
IPC: B63H25/38
Filed: 1967-09-28
Abstract: 1,197,475. Craft with shrouded propeller. S. J. GORDON. 28 Sept., 1967 [13 Oct., 1966], No. 44271/67. Headings B7S and B7V. The axis of rotation of an asymmetric shroud is also the axis of the propeller with which the shroud operates. The embodiment of Figs. 3 and 4 is a semicircular shroud 31 which on rotation gives improved turning effect for steering. The propeller shaft bearing 34 is supported by the shroud torque tube 35 which in turn rotates with the stern tube bearing 36 and stern tube 37. In the embodiment of Fig. 5 the shroud encloses the propeller circumferentially.
Patent GB-1318550-A (GB)
Title: Vehicle door control system
IPC: E05F15/00
Filed: 1970-09-17
Abstract: 1318550 Door control system GENERAL SIGNAL CORP 17 Sept 1970 [17 Sept 1969] 44439/70 Heading E2M An electrical system for controlling e.g. a tube train door 10 comprises a designating means 15 for giving "open" and "close" signals to a switch means 14; a vehicle function monitor 13 having speed and brake detectors 18, 17 which prevents, via the switch 14, a door opening unless the conditions that (a) the brakes are applied at least at a minimum pressure and (b) the train is travelling below a minimum speed are met; and a first check 16 which correlates the speed and brake detectors output with that from a train drive motor controller 20 and, if the motor is working then, even if the said conditions are met, the check 16 issues an override signal which prevents the doors opening; and a second check 21 which correlates the speed and brake detector output with the designating means 15 so that, if the train has been moving or the brakes have been released since the means 15 was last moved from a "close" to an "open" position, then the check 21 issues an override signal which prevents the doors from opening. Fig. 2 shows the circuits with the train stopped and a door open. The designating means 15 includes a switch 22 for left or right opening doors energising a relay 31: the speed and brake detectors energise relays 37 and 26 respectively. The first check 16 comprises a relay 50 which, whilst the drive motor 24, and hence the train, is stopped, is energised through line 52 from the controller 20. When the drive motor starts, energisation of the relay 50 is switched from line 52 to line 51, the relay being held by a slow release circuit 54, 55 until contacts 38, 44 (controlled by relays 37, 26) in line 51 are closed: if the contacts do not close in a set time, relay 50 drops out preventing the doors being opened. A reset button 60 is provided. The second check 21 comprises a relay 61 energised through contacts 45, 39 (controlled by relays 26, 37) whilst the train is stopped; and energised through contact 32 (controlled by relay 31) when the doors are closed and the train is in motion; a slow release circuit 67, 68 holding the relay during the changeover. If the switch 22 is left in an "open" position (L or R) when the train is moving, contact 32 remains open and relay 61 "drops out" after a set time and the doors cannot be opened: the relay may be reset by moving the switch 22 to the closed (CL) position. A circuit bypassing relays 26, 37, 50 and 61 may be included.
Patent GB-915216-A (GB)
Title: Improvements relating to perambulators and the like
Inventor: PENFOLD FREDERICK THOMAS
IPC: B62B9/18
Filed: 1960-12-28
Abstract: 915,216. Collapsible vehicles. LINES BROS. Ltd. Sept. 29, 1961 [Dec. 28, 1960], No. 44466/60. Class 108(1). A collapsible perambulator has two inverted U-shaped frames 1, 2 pivoted together at 3, their free ends being pivoted at 4 to links 6 carried by the frame 5. The inverted U-shaped handle 7 is pivoted at 8 to the member 2 and is connected by links 10 to the member 1 so that when the handle is moved forwardly the X frames will collapse. When the handle is in the position shown in dotted lines the separation of the cross members of the U-frames 1, 2 is a minimum and the detachable body of the perambulator is engaged with the underframe in this position so that when the handle is moved into its operative position the cross-members engage hooks 13 on the body to prevent disengagement; a pin 16 on the members 1, 2 engaging between the two hooks 13 at each end to limit sideways movement. The handle is retained in its operative position by hooks 14 engaging pins at the bottom of the handle.
Patent GB-1048168-A (GB)
Title: Improvements in fuel supply systems for burners
IPC: F23K5/04
Filed: 1965-10-21
Abstract: 1,048,168. Supplying liquid fuel to burners. ROBERT BOSCH G.m.b.H. Oct. 21, 1965 [May 13, 1965], No. 44532/65. Heading F4T. Oil fuel is delivered from a tank 5, Fig. 1 (not shown), to a burner 1 by compressed air delivered to the. tank 5 by a compressor 10 driven by an electric motor, and a conduit 15 having a valve 16 supplies oil fuel for lubrication from the tank 5 to the compressor 10 and motor. The level of fuel oil in the tank 5 is kept within limits by a valve 7 actuated by a level regulator. Combustion air is supplied to the burner from the top of the tank 5. An oil separating filter is disposed between the compressor and the tank 5. A vent valve 14 for the tank is provided. In a modification, Fig. 2 (not shown), the compressor and its motor are mounted within the fuel tank above the fuel level and the end of the crankshaft is constructed to draw oil fuel through a tube 22 extending from the compressor to below the oil level.