baber/WOPTO huggingface dataset:
Patent GB-1228813-A (GB)
IPC: E01B25/28
Filed: 1968-04-09
Abstract: 1,228,813. Tow truck conveyer; track apparatus. S.I. HANDLING SYSTEMS Inc. 9 April, 1968 [17 April, 1967], No. 17083/68. Headings B7L and B7N. In a tow truck system in which a truck is moved and guided by a pin projecting into a slot in the surface on which the vehicle runs, a truck is diverted from a main slot into a diverging slot when a pair of active treadles in advance of the diverging point, which by their position define the point, are actuated by a pair of similarly positioned address pins on the vehicle. The switch mechanism at the point includes a number of upstanding walls defining the meeting slots which isolate an interior chamber and prevent the entry into the chamber of debris from the slots. The chamber houses the switch actuating mechanism which depends from a cover for the chamber. The treadles are mounted in two groups of 3 in cup-shaped housings 92 on either side of the main slot in advance of the diverging point. The three treadles 120 &c. of each housing are mounted with their guards 110 &c., on a shaft 116 which is secured to a pair of members 100 &c. secured to a spring loaded shaft 96. The shaft allows the treadle group to be depressed accidentally by, e.g. a vehicle wheel. Each treadle is formed with a loop portion 124 which allows it to be placed in an active (full line) or inactive (broken line) position and one treadle in each group is placed in the active position to define the diverging point. When engaged by an address pin on the vehicle the treadle rotates and draws a member 134 and the cable 74 to the right. When a treadle in each group is actuated cables 76 and 74 are drawn to the right initially rotating members 60, 58 anticlockwise and clockwise respectively until their respective teeth 66 68 lock, thereafter movement of the cables rotate arm 52 about pin 51 and this movement is conveyed to a stop supporting member 54 by a blocking member 56 which is urged into engagement with the support member 54 by spring 142. Rotation of the stop support member moves stop 50 away from arm 48 and this rotates under the action of spring 49 and moves the switch member 30 to the diverting position. Cam 31 on the switch member when engaged by the tow truck pin rotates the switch plate back to its initial position. A member is disposed along the diverging slot and when engaged by a pin of a leading truck when the diverging slot track is full draws cable 144 downwardly thereby swinging blocking member 56 out of engagement with the stop support member 54 so that rotation of arm 52 is not transmitted to the stop support member and further tow trucks are prevented from entering the diverging slot track.
Patent GB-1228941-A (GB)
IPC: D03D49/58
Filed: 1968-04-30
Abstract: 1,228,941. Looms, shuttle braking. Z & D INDUSTRIES Inc. 30 April, 1968 [1 May, 1967], No. 20346/68. Heading DIE. Shuttle braking. Photoelectric devices 72, 72' are energised by a departing and arriving shuttle 78 with a time delay between the two signals which are fed to a gate 88 connected to a time delay 90 which, after the predetermined delay, operates a solenoid 48 to apply pressure to a swell 40 to stop the shuttle. In (Fig. 3, not shown) the circuit includes a high speed clock which measures the time delay of the photoelectric devices 72, 72' and hence the shuttle speed, and operates the solenoid 48 in accordance with that speed. Shuttle stop motion. If the shuttle is not correctly boxed the swell moves further than usual and pivots a dagger 62 into the path of the sley 64. Before the dagger is operated, in the event of shuttle non arrival, a solenoid 102 knocks off the starting handle declutch and brake the loom.
Patent GB-1231136-A (GB)
IPC: A45C13/10
Filed: 1969-09-23
Abstract: 1,231,136. Sliding clasp fastners. E.L.B.E. (EXETER) Ltd. 23 Sept., 1969. No. 46722/69. Heading E2S. A case or similar article in which two parts 1, 2, are joined together by a sliding clasp fastner 3 is provided with a second sliding clasp fastner 7 which protects the slider of the first fastner, when in the closed position, from unauthorized access and dirt. The second sliding clasp fastner runs in the opposite direction to the first. The lock 13 of the second sliding clasp fastner may be so positioned that it will not be exposed to dirt Fig. 4.
Patent GB-1231988-A (GB)
IPC: B43K5/14
Filed: 1970-03-09
Abstract: 1,231,988. Sylographic reservoir pens. H. RIEPE, and K. H. DITZE, [trading as RIEPE WERKE]. 9 March, 1970 [10 March, 1969], No. 11228/70. Heading B6P. In a stylographic reservoir pen, the inner tubular body 4 on which a heileal ink equalization or overflow chamber 6 is formed, tapers towards the folder for the tubular writing point 16, and that part of a shank part 2 in which the inner tubular body is mounted is similarly tapered. In Fig. 1, an inverted cup-shaped member 22 is connected to the inner end of the inner tubular body 4 to locate the drop weight 12 within the bore 10. The member 22 is formed with orifices 24 connecting the bore 10 to ink reservoir, and is manufactured from elastic plastics material. The sleeve-shaped shank part 2 has a male screw-thread 34 which is screwed into a female thread in a shank holder 36. The holder 36 is first unscrewed, whereupon the inner tubular body 4 is withdrawn for clearing. In (Fig. 2), the sleeve-shaped shank part 2 is slid on to and off the tubular body 4 over the writing tube 16. In (Fig. 3), the writing tube holder (43) is integral with the sleeveshaped shank part (42), and not the inner tubular member as in Fig. 1. The inner tubular member is slid over a circular flange (44) adjoining the writing tube holder (43), so that the helical equalizing chamber (46) abuts the tapering sleeve-shaped port (42).
Patent GB-1232872-A (GB)
IPC: F01B17/02
Filed: 1968-06-25
Abstract: 1,232,872. Fluid-pressure motors. APPLIED POWER INDUSTRIES, Inc. June 25, 1968 [Oct.16, 1967], No. 30299/68. Headings F1M and F1S. When the pressurized fluid, e.g. air, being admitted to the right-hand end of the piston 18, passes through the port 44 passageway 45 and passageway 33A to the servo chamber 33 behind the large diameter servoportion 57 of the valve 55, the pressure built up in the servo chamber unbalances valve 55 and unseats the valve closing portion 59 to thereby permit compressed air to escape from the right hand end of chamber 16 through the opening 61A between the valve closing portion 59 and its seat 61 to the exhaust port 34. The spring 20 can return piston 18 to a starting position. As the piston is moved to the right in chamber 16 its rear face contacts the extending nose portion 60 to the poppet valve 55 and forces the valve against its seat 61. As shown, the end closure 14 includes an air inlet port 31 and a throttle valve 32. The portion 40A is adapted to be depressed to unseat the ball valve 36.
Patent GB-1234645-A (GB)
IPC: F16D13/72
Filed: 1968-10-30
Abstract: 1,234,645. Friction clutches. AUTOMOTIVE PRODUCTS CO. Ltd. 23 Oct., 1969 [30 Oct., 1968], No. 51474/68. Heading F2C. A vehicle friction clutch 18 in a bell housing 13 is cooled by fluid, e.g. air, flowing out of a port 26 in the housing to a heat exchanger 24 and returning by a port 27, the flow being induced by heated air driven centrifugally through openings 21 in the clutch cover 19 creating high pressure at the clutch periphery. The heat exchanger 24 is a hollow cylinder and, as shown, is disposed in a cooling air stream under the vehicle. The cylinder may have external fins, may be formed from a good heat conductor, and may be cooled by a fluid other than air. Again, Fig. 3 (not shown), a baffle (37) is arranged in the bell housing between the entry and exit ports (34), (35) which are arranged tangentially so that the tangential component of heated air flow assists in air flow through the cylinder 24. The friction clutch comprises a single driven plate (31) forced against a flywheel (29) by a pressure plate (32) spring-urged to engage the clutch, and released by levers pivoted on the clutch cover. A peripheral flange (30) on the flywheel has radial openings (33) to allow centrifugal flow of the heated air.
Patent GB-1238109-A (GB)
IPC: E21B3/04
Filed: 1969-09-23
Abstract: 1,238,109. Boring earth and rock. ATLAS COPCO A.B. 23 Sept., 1969 [4 Oct., 1968; 4 Dec., 1968], No. 46734/69. Heading E1F. [Also in Division B3] A rotary rock drill comprises two frame mounted chucks 21, 27 one of which is movable along the axis of a drill string 23 by a pressure fluid operated reversible feed motor 17. The movable chuck 27 is rotatable by an hydraulic motor 32 mounted thereon and has jaws 46, Fig. 4, biassed away from the drill string by spring plates 47. Pressure fluid forces the jaws to grip the drill string by compressing a sleeve piston 43. The chuck 21 is axially stationary and spring biassed to grip the drill string and releases the string when supplied with fluid. The fluid conduits of the chucks are connected to a common supply conduit in an hydraulic control circuit. Fig. 6 (not show) so that the chucks may alternate their engagement with the drill string on successive pressurisation and depressurisation of the common supply conduit. By connecting the common supply conduit to an appropriate supply conduit of the feed motor, the drill string may be advanced or withdrawn by the movable chuck. Drill pipe joints may be made and broken by controlling both chucks to grip simultaneously. The chuck 21 may be rotatable through a limited angle to produce an impact for breaking a joint. Both chucks may be opened simultaneously for initial insertion of a drill bit 26, which may be a core bit.
Patent GB-1253063-A (GB)
IPC: C08F10/02
Filed: 1968-11-12
Abstract: 1,253,063. Supported organochromium compound polymerization catalyst. UNION CARBIDE CORP. 12 Nov., 1968 [13 Nov., 1967; 27 Feb., 1968], No. 53625/68. Heading C3P. Ethylene is homo- or copolymerized by contacting with a bis-(cyclopentadienyl)-chromium (II) (including ring substituted analogues thereof) absorbed on a porous inorganic oxide support, at a temperature and pressure sufficient to initiate polymerization. The process is most suitably conducted in continuous manner in a fluidized bed reactor including means for recycling unreacted gaseous monomer, with cooling prior to reuse. Conventional solution polymerization techniques may also be employed. Hydrogen is desirably included. The catalysts may be prepared by adding the dried support to a solution of the chromium compound or by direct vapour deposition of the chromium compound on the dried support. In the examples, ethylene is homopolymerized or copolymerized with propylene or ethylidene norbornene (butene also mentioned), in the presence of bis-(cyclopentadienyl) chromium (II) deposited on 5i0 2 , SiO 2 /Al 2 O 3  or Si0 2 /Na 2 0 supports using both the solution and fluidized bed techniques.
Patent GB-1256686-A (GB)
IPC: H05H1/18
Filed: 1970-02-24
Abstract: 1,256,686. Thermonuclear apparatus. INSTITUT FIZICHESKIKH PROBLEM AKADEMII NAUK SSSR. 24 Feb., 1970 [22 Aug., 1969 (2)], No. 8781/70. Heading G6P. In a thermonuclear reactor, deuterium or tritium gas is subjected to a high frequency electromagnetic field in a resonant cavity, is compressed to a pressure at which the neutrons have a free path length less than the cavity dimensions and is rotated about a horizontal axis by tangentially mounted inlet nozzles in order to maintain the discharge centrally disposed in the cavity. The high frequency field is in the E 01n  mode, where n is equal to, or greater than, 2. The cavity may be either cylindrical or an annular toroid. In one embodiment, the cylindrical resonant cavity, 1, is fed with high frequency electromagnetic oscillators through the coaxial line 3. The discharge zone 2 is subjected to a fixed magnetic field generated by the solenoid 8 and an alternating magnetic field by the coil 10, the latter effecting additional heating of the plasma by adiabatic compression or magnetoacoustic oscillations. Rotation of the gas is effected by injection through the nozzles, 4. The energy of the released neutrons is absorbed by the gas which is heated and expanded adiabatically in the turbine 13 before being returned to 1 by the compressor 12.
Patent GB-1258588-A (GB)
IPC: B27B5/00
Filed: 1969-04-02
Abstract: 1,258,588. Sawing. BLACK CLAWSON CO. 2 April, 1969 [8 April, 1968 (2)], No. 17370/69. Heading B5L. Apparatus for cutting a longitudinally moving strip of material 12 perpendicular to its direction of movement comprises a saw 10 having a discontinuous helical blade 20 extending substantially completely around an axis, means for rotating the blade about the axis with the speed of rotation and the pitch angle of the blade correlated with the speed of movement of the strip, means supporting the saw for movement substantially normally to the direction of movement, actuating means for moving the blade into and through the material and returning it to a position clear of the material in less than one revolution of the blade, and means for sensing the discontinuity in the blade and controlling the actuating means to move the blade into the strip only when a continuous cutting edge of the blade is presented to the material. The strip, which may be lumber, plastics, millwork or the like, is advanced along a conveyer 15 and held against the base thereof by rollers 16. The saw 10 consists of a circular saw blade 20, Fig. 3, cut along a radial line 21 and clamped between hubs 23, 24 mounted on a shaft 25. The shaft is mounted at an inclination on the end of an arm 40 which is rotatably mounted on the drive shaft 31 of a motor 30, the shaft 31 being connected by a belt drive 35 to the shaft 25. A toggle linkage 42, 43, Fig. 3, is connected between a stationary part 13 and the arm 40 and is also connected to the rod 44 of a piston-and-cylinder device 45. During extension of the rod, the blade is advanced to cut through the material 12 and retracted. Similar operation occurs upon retraction of the piston-rod. The extension and retraction of the rod is controlled by solenoids 47, 48 which may be manually operated when, for example, an operator observes a defect in the strip passing a shadow line device 81, 82, or automatically to cut the strip into predetermined lengths. The solenoids 47, 48 are only operative so that the continuous portion of the blade engages the strip and are controlled by the sensing means which consists of a pair of ferrous material 55, Fig. 3, disposed adjacent the discontinuity 21 and sensed by a magnetic pick-up 56, Fig. 1, connected to an amplifier. The movement of the material is monitored by a length sensor 85 connected to a length programmer 90. In another embodiment, the advance and retraction of the saw blade is effected by engagement of followers 71, Fig. 6, which are moved into operative position by solenoids or jacks 75 with eccentric C-shaped cam grooves 64 in the hubs 23, 24 clamping the blade 20, the open parts 65 of the grooves being adjacent the discontinuity 21.
Patent GB-1259171-A (GB)
IPC: D04D1/04
Filed: 1969-01-07
Abstract: 1,259,171. Sewing machines. Y. NOMURA. 7 Jan., 1969 [27 Sept., 1968], No. 981/69. Heading D1G. A sewing machine presser foot comprises a sole plate 2 having a wide needle-passing aperture 9 and a projection 3 on its lower surface at one side of aperture 9. Plate 2 is formed with upstanding lugs 4 pivoted at 6 to a bracket 5 secured to the presser bar. The limbs 8, 8' of a torsion spring supported on pivot 6 bear against bracket 5 and plate 2 respectively. The presser foot is used in attaching a spirally-arranged string of beads to a substrate. Projection 3 is deeper than the beads 14, at least two of which engage the inner wall of projection 3 which is thereby guided along the configuration of the string, while a zig zag stitch is inserted on the string 15 between every second bead. Presser feet with projections 3 of differing length and width may be used in accordance with the spacing between the convolutions of the string and the radius of curvature thereof.
Patent GB-1265087-A (GB)
IPC: G02B23/26
Filed: 1969-08-18
Abstract: 1,265,087. Fibre optics. NIPPON SELFOC K. K. Aug.18, 1969 [Aug.27, 1968], No.41179/69. Heading G2J. Fibres having radial refractive index variations in accordance with the formula n = N(1-ar<SP>2</SP>), where N and n are the values at the centre and at a distance r from the centre and where "a" is a positive constant, are used to form multiple images 5 of an object 6. The fibres act as lenses and by adjusting the parameters such as fibre length object distance, value of "a", it is possible to choose whether a given image will be magnified or diminished, real or virtual, inverted or erect.
Patent GB-1266401-A (GB)
IPC: F16J15/16
Filed: 1969-03-06
Abstract: 1,266,401. Shaft seals. DEMAG A.G. 6 March, 1969 [17 May, 1968], No. 12002/69. Heading F2B. A rotary shaft seal for a turbine or compressor comprises first and second axiallyspaced radially-floating rings 3, 7 supplied with sealing fluid (oil) through an inlet 4, the rings being so constructed that the shaft clearance 16 at the first ring is less than, and increases on thermal expansion at a lower rate than, the shaft clearance 15 at the second ring to ensure that the leakage of sealing fluid through the clearance at the first ring is maintained less than the leakage of sealing fluid through the clearance at the second ring, which leakage at the second ring varies automatically according to the operating temperature of the shaft and the second ring. The floating rings 3, 7 are pressed apart by a spring 5 and interconnected by projections 25, the ring 3 being provided with cooling fins 26 which co-operate with a rotation-prevention pin 17 and the ring 7 being heat insulated by a sleeve 6 of synthetic resin. The ring 3 is made of a material having a coefficient of thermal expansion substantially corresponding to that of the material of the shaft 1 which is usually made of steel; the inner surface of the ring 3 may be provided with a thin layer of antifriction material and any oil which does escape through the clearance 16 into the gas space A discharges through an outlet 18. The ring 7 may be made of aluminium alloy or zinc alloy; when the operating temperature of the steel shaft and ring 7 rises, cooling of the seal is automatically regulated by the greater volume of oil which passes through the increased clearance 15 from the chamber B to the bearing space C, D and discharges through an outlet 12. In a modification, the ring 7 may be divided into three segments each having inner and outer parts made of materials having different coefficients of expansion; upon being heated leakage gaps are created adjacent the ends of each segment. In another modification, the ring 7 is undivided and is provided on its inner surface with recesses filled with a low melting point material which fuses out upon overheating.
Patent GB-1296125-A (GB)
IPC: C07C313/00
Filed: 1970-03-19
Abstract: 1296125 Thiodiglycol BADISCHE ANILIN & SODA-FABRIK AG 19 March 1970 [21 March 1969] 13223/70 Heading C2C Thiodiglycol is prepared by reacting ethylene oxide and H 2 S in a molar ratio of about 2 : 1 in the presence of thiodiglycol as a solvent at. elevated temperature and superatmospheric pressure in a single liquid phase under conditions of temperature and pressure such that no gas phase forms in the reaction mixture. A tubular reactor is suitable.
Patent GB-1306710-A (GB)
Title: Hydraulic and pneumatic control systems
IPC: F15B18/00
Filed: 1970-09-22
Abstract: 1306710 Fluid-pressure servomotor systems FEINMECHANISCHE WERKE MAINZ GmbH 22 Sept 1970 45119/70 Heading G3P A pneumatic or hydraulic system comprises two control circuits 4, 5, 6 and 11, 12, 13 and means to change from one control circuit to the other including two mechanical couplings 7, 9 to transmit control movements to control elements 4, 11 and two by-pass valves 5, 12, resistance to movement of the control element of one of the circuits causing system pressure fluid to disengage the coupling transmitting the movement and to operate the by-pass valves. A lever 3 operates the control elements 4, 11 and provides a feedback from the output members 6, 13. The system is shown with the circuit 11, 12, 13 inoperative and with the by-pass valve 12 allowing fluid to flow freely from one side of the element 13 to the other. Resistance to movement of the element 4 disengages the coupling 7 which allows system fluid-pressure to operate both by-pass valves so that the circuit 11, 12, 13 becomes operative. The coupling 7 consists of two flanges 19, 23 connected to an input member 16 and the control valve 24, respectively, and normally constrained to move in unison by spring-loaded rings until resistance to movement of the valve causes one of the rings to be displaced and to allow system fluid-pressure from the inlet 31 to the control valve to flow through ducts 32, 33, 34 to hold the rings apart so that relative movement between the valve and the input member can occur. Fluid also flows through a line 28 to operate the by-pass valves and an indicator 8 or 10. In a modification, the fluid passages of the coupling are somewhat differently arranged within concentric sleeves (17, 18) Fig.4 (not shown). In a further modification, relative angular movement between arms (50, 51) Fig. 6 (not shown) allows pressure fluid from a passage (48 or 49) to fill a space (61) and disconnect the coupling.
Patent GB-1308911-A (GB)
Title: Apparatus for use in the manufacture of shell moulds
IPC: B29C33/00
Filed: 1969-02-20
Abstract: 1308911 Coating apparatus A DUNLOP 19 May 1970 [20 Feb 1969] 9155/69 Heading B2L [Also in Division B5] Apparatus for forming shell moulds comprises vertically reciprocable pattern-supporting means which is rotatable about a vertical axis and having pattern-supporting shafts spaced around its circumference, the shafts each being rotatable about a horizontal axis when the pattern-supporting means is stationary and in its lowermost position so that the patterns may be dipped into a tank of mould-forming material when the supporting means is lowered, the supporting means being indexed to align the patterns successively with a number of such tanks. As shown in Fig. 1, patterns 22 are mounted on drums 23 on shafts 16 rotatable in brackets 15 of arms 13 by bevel gears 17, 18 from motor 19. Arms 13 are spaced about frame 12 mounted for vertical movement on piston rod 11 of cylinder 10. Indexing of assembly 12-13 is effected when raised by cylinder 20 through ratchet and pawl device 21. Six successive tanks 14 may contain an alkaline soluble silicate slurry, dry refractory, liquid gelling agent, neutralising agent, an acid soluble silicate slurry, and dry refractory.
Patent GB-1314526-A (GB)
Title: Resilient bearing assemblies
IPC: F16C27/06
Filed: 1969-05-19
Abstract: 1314526 Railway vehicle undercarriages BTR INDUSTRIES Ltd 8 May 1970 [19 May 1969] 25466/69 Heading B7L [Also in Division F2] A resilient bush assembly (e.g. keyed to or an interference fit on a shaft 21) comprises a number of bush elements 23 each having an outer sleeve and an inner sleeve with a sleeve of elastomeric material between facing tapering surfaces, the outer sleeves making an interference fit in a housing 22 (e.g. at the end of a suspension radius arm on a rail vehicle bogie unit to the frame of which the shaft 21 is fixed) and the elastomeric sleeves being compressed on assembly and the inner and outer sleeves of each element (e.g. offset before assembly) engaging those of an adjacent element. The elastomeric sleeve is bonded to at least one of the other sleeves of an element and the outer sleeve may be split into halves so that the end faces of the sleeves need not be offset as shown, compression of the elastomeric material being achieved by the halves being moved radially together. The spring rate of the element shown may be determined by the degree of taper (e.g. 20 degrees) of the surfaces or by the elastomeric material or its thickness. The spring rates of the elements in an assembly may differ.