baber/WOPTO huggingface dataset:
Patent GB-1234173-A (GB)
IPC: E02F3/36
Filed: 1969-01-16
Abstract: 1,234,173. Scoop-arm machine. POCLAIN. 16 Jan., 1969 [26 Jan., 1968], No. 2719/69. Heading E1F. An earthworking machine having a jib on which is pivotally mounted an earthworking implement and including a ram for operating the jib or the implement has means for protecting the ram comprising a pair of bars pivotally interconnected end to end with their other ends pivotally connected respectively to members to which the ends of the ram are respectively connected, the ram being located between the jib and the bars. In the preferred construction a ram 13 for operating a bucket 8 is protected by bars 14a, 14b, and the end 18 of the bar 14b serves as an abutment for engaging the bucket to limit its pivotal movement when the ram is retracted. Alternatively, the bar 14a may provide the abutment. Similar protective means may be provided for a ram 7 operatively connected between articulately interconnected arms 2, 3 of the jib.
Patent GB-1238133-A (GB)
IPC: C03C3/105
Filed: 1969-10-24
Abstract: 1,238,133. Glass composition. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 24 Oct., 1969 [29 Oct., 1968], No. 52263/69. Heading C1M. A glass which may be used for making the envelope of a television cathode ray tube consists of 58-67 SiO 2 ; 0-1 LiO 2 ; 2-3 Na 2 O; 11-14 K 2 O ; 3-4À5 CaO; 11-14 BaO; 2-7 PbO; 0-3MgO; 1-4 Al 2 O 3 ; 0À3-0À7 As 2 O 2  and/or Sb 2 O 3  and 0À05-0À6 CeO, all in percentages by weight.
Patent GB-1251379-A (GB)
IPC: G01R19/18
Filed: 1968-12-20
Abstract: 1,251,379. Amplifying circuits. R.C.A. CORPORATION. 20 Dec., 1968 [28 Dec., 1967], No. 60571/68. Heading H3T. [Also in Division G1] A chopper-type operational amplifier 56 is protected against overload by a feedback network 65 which breaks down when the amplifier output voltage becomes too high. The feedback network is a T-network whose branches comprise: (1) voltage breakdown devices 66, 68, diodes 70, 72 and sources 76, 80 of biasing voltages; (2) diodes 84, 86; (3) resistor 82 connected to earth.
Patent GB-1253213-A (GB)
IPC: B23F23/12
Filed: 1968-02-16
Abstract: 1,253,213. Grinding. PRECISION GEAR MACHINES & TOOLS Ltd. 10 Feb., 1969 [16 Feb., 1968], No. 7856/68. Heading B3D. A method of dressing a gear bone wheel 22, Fig. 1, or other.abrasive finishing wheel carried for rotation on a machine tool adjacent a workpiece 13 comprises automatically measuring when the wheel has worn in use by a predetermined amount, dressing the wheel in response to such measurement by a chosen reduction, and advancing the wheel towards the workpiece by said chosen reduction in radius to compensate for the dressing. The workpiece 13 is carried between running centres 14 on a table 12 rockable about a vertical axis by a cam mechanism 47 to effect crowning of the teeth of the gear. The hone wheel 22 is mounted in a quill head 30 having a cylindrical extension 31 which is axially slidable in a linear ball bearing in a honing head 11 and, at its end, has a spring 45 mounting a roller 44 engaging a cam surface 40 on a weighted member 41. The honing head is movable towards and away from the workpiece by a lead screw 21 connected by gearing 61 to a shaft 62 joined by universal couplings 64 to a feed compensator 60. A dresser 51 having a diamond tool 50 is mounted on the quill head which also carries a post 52 for operating a limit or proximity switch 53 on a bracket 33 on the honing head. As the honing wheel wears the tips of the honing teeth, which are not worn during honing, approach the root diameter of the workpiece gear. The relative movement between the quill head 30 and honing head 11 causes the post 52 to actuate the switch 53 to operate the dresser 51 so that the diamond 50 dresses the tips of the teeth and also the compensator 60 to advance the honing head and thus re-set the limit switch. The diamond dressing tool 50 is mounted in a holder 70, Fig. 2, screw-threaded into a bush 71 which, in turn, is screwthreaded into a housing 72 and is formed with a gear 74 meshing with a rack 75 on a double-acting pneumatic piston 76. The holder 70 is secured to the outer half of a one-way clutch 78, the inner half of which is keyed to a locating shaft 79 and is axially, but not rotatably, movable. The pitches of the threads of the holder and bush differ and when the piston 76 is moved in one direction, the bush rotates and moves to the right, the holder 20 also rotating so that the diamond is advanced. When the piston is moved in the opposite direction the bush moves to the left but the holder is prevented from rotating and thus the diamond does not retract as far as it advanced, the difference determining the amount to be dressed from the wheel.  The compensating mechanism for moving the honing head consists of a shaft 101, Fig. 5, which is rotatably mounted in a housing 100 and, at one end, is connected to the universal coupling 64 and, at the other end has a squared portion for a hand wheel. A gear 103, which meshes with a rack 108-on the piston of a pneumatic cylinder device, is freely rotatable on the shaft and is rotatable therewith upon energization of an electromagnetic clutch 105.
Patent GB-1265154-A (GB)
IPC: B01D45/02
Filed: 1968-05-24
Abstract: 1,265,154. Debris trap for gas meters. PARKINSON COWAN Ltd. 23 May, 1969 [24 May, 1968], No. 25045/68. Heading B1T. A gas meter having a built-in prepayment mechanism comprises a trap as shown, whose lower spigot 4a is connected to the outlet from the mechanism and whose upper spigot is connected to the outlet from the meter, the conical cup 8 blocking the straight line path through the trap and catching any solid debris which might otherwise fall into the prepayment mechanism when the meter is being connected. The trap body is made from acetal resin in two parts, welded together with three arms 10 supporting cup 8 between them. The cone angles of cup 8 and section 4b ensure a uniform cross-sectional area between them. Spigots 4a and 2a fit slidably into coaxial sockets with internal O-rings.
Patent GB-1265363-A (GB)
IPC: C08G73/12
Filed: 1969-02-06
Abstract: 1,265,363. Laminates. TRW Inc. 6 Feb., 1969 [8 Feb., 1968], No. 6547/69. Heading B5N. [Also in Division C3] Surfaces are bonded by providing between and in contact with the surfaces a layer of a curable polyimide precursor terminated with an optionally alkyl-substituted, endomethylene tetrahydrophthalic anhydride and applying heat and pressure to cure the precursor. The precursors are described and claimed in Specification 1,241,445. The layer of adhesive may be applied as a hot melt, from a slurry or solution, e.g. in furfural, 1-methyl-2-pyrrolidone or butyrolactone, or in the form of a layer of reinforcing material, e.g. silica or glass cloth, impregnated with the precursor. The lamination of such layers to one another is claimed in Specification 1,243,643 and disclaimed in the present Specification. The precursor layer may be formed in situ on the substrate from a solution of the corresponding polyamide-acid. Curing to form the adhesive bond may be effected at up to 1000 p.s.i. at 390‹ to 660‹ F. The surfaces may be metals or non-metals, e.g. ceramics. Specified applications are in highperformance aircraft, leading edges of structures and re-entry glider nose-caps. No specific surfaces are described.
Patent GB-1265584-A (GB)
IPC: B64C3/40
Filed: 1969-12-16
Abstract: 1,265,584. Variable geometry aircraft wing. MESSERSCHMITT - BOLKOW - BLOHM G.m.b.H. 16 Dec., 1969 [20 Dec., 1968], No. 61199/69. Headings B7G and B7W. An aircraft wing comprises a part 2 attached to fuselage 1 and a part 4 movable relative to the part 2 and pivoted at 3. When the wing is fully swept or fully spread there is no gap between leading edge 5 of the fixed part 2 and leading edge 6 of the pivoted part 4, the edge 5 being aligned with a respective one of two points 8 and 9 on the edge 6. Between the two extreme positions however there is such a gap and this may be filled by arranging for a segment-shaped element 12 (Fig. 2) to be pressed outwardly from the wing part 4, between the points 8 and 9 into the skin of the wing, which in this region is sufficiently resilient as to be capable of deformation. Movement of the element 12 may be controlled by a cam disc 14 which is fixed relative to the wing part 2. Alternatively an inflatable segment-shaped element (10), Fig. 1 (not shown), may be used to fill the gap, the inflation possibly being controlled in dependence on the position of the wing part 4. The said gap may alternatively be covered by a U-shaped element 17 which may be extruded from inside the wing part 2 so that its rear edges overlap the wing part 4 while its leading edge bridges over the gap between the leading edges 5 and 6. The element 17 may be spring-loaded and attached by a cable 35 to a follower 37 running on a cam surface 21 fixed to the wing part 4, or it may be moved by a hydraulic actuator (20), Fig. 3 (not shown). Alternatively a sector-shaped element 22 pivoted about 3 may be provided, whose position is controlled by an hydraulic actuator 23 via links 24 and 26, the element 22 being retracted into the wing part 2 when the wing part 4 is in an extreme position, Fig. 5, and being moved to fill the gap when the wing part 4 is in an intermedi - ate position, Fig. 5 (not shown).
Patent GB-1288656-A (GB)
IPC: A63F7/06
Filed: 1970-11-24
Abstract: 1288656 Football-figure for an indoor game ARCO FALC SrL 24 Nov 1970 [29 Jan 1970] 55750/70 Heading A6H A football player dummy 1a for use in table football games is provided with a removable part 5 simulating a team jersey or vest. The removable part may comprise a pliable element applicable to the upper part of the figure or it may comprise a shell as shown which may include the head of the figure. In a modification the figure may include removable stockings.
Patent GB-1289006-A (GB)
IPC: B02C17/00
Filed: 1970-07-22
Abstract: 1289006 Beater mills; tube mills FIVES LILLE-CAIL 22 July 1970 [23 July 1969] 35534/70 Heading B2A A mill comprises a horizontal rotor 12 having pivotably-mounted beater elements 40 and arranged in a rotatable drum 10. Feed is supplied through channels 52 via an aperture or apertures in one end wall 50. One rotor bearing 46 is overhung on a fixed support 48 and is situated in the plane of the feed end wall and the other rotor bearing 44 is carried by the other end wall. Discharge of ground material and carrier gas is via peripheral apertures 20 in the mill envelope. The drum which may have lifters 24, is divided by an annular partition 18 into a grinding chamber and an outlet chamber. Dwell-time of material in the grinding chamber is regulated by the height of the partition 18. The bearing 46 may be air- or oil-cooled. The drum is rotated by a sprocket 54 and chain and the rotor is driven by a geared motor. The drum may rest on bearings as at 32 or be supported by wheels which may have pneumatic tyres.
Patent GB-1295098-A (GB)
IPC: B23H1/00
Filed: 1969-05-20
Abstract: 1295098 Electro-erosion RCF SpA 19 May 1970 [20 May 1969] 25602/69 Heading B3V A spark erosion machine includes a gantry 1 which carries an electrode platen 11 symmetrically disposed about the gantry's central vertical axis and which is horizontally movable relative to a work tank 2. In one embodiment, two gantries 1 are movable by motor-driven chains 5 along rails 4 from the dotted line inoperative position to the full line position above the tank 2. The wheels 3 of the gantries 1 may be raised by jacks to enable frusto-conical locking members (8 and 9) (Fig. 4, not shown), on a foundation 7 and the gantries 1 respectively to interengage. Each gantry 1 is clamped to the foundation 7 by turning a handle 8A which raises hooks 6A under projections 7A of the foundation 7. Each electrode platen 11 is secured to a head frame 12 which is vertically movable relative to the gantry 1 by an hydraulic piston and cylinder assembly 13, 14. The head frame 12 may be locked in an upper position by a spring-biased pin 16. The electrode platen 11 is rotatable with respect to the head frame 12. A dielectric is pumped from a reservoir 24 to the work tank 2 which is divided into compartments by partitions 21.
Patent GB-1296409-A (GB)
IPC: C04B35/16
Filed: 1970-07-27
Abstract: 1296409 Wollastonite; diopside RHEINISCHE KALKSTEINWERKE GmbH 27 July 1970 [30 July 1969 28 Nov 1969] 36237/70 Heading C1A Synthetic wollastonite and/or diopside are produced by burning lime or limestone with or without magnesium oxide or magnesite together with silica, wherein the molar ratio of calcium oxide to magnesium oxide is from 1 : 0 to 1 : 1 and the silica is used in an excess of at least 4%, based on the stoichiometric quantity of silica. Wollastonite may be produced when the ratio of calcium oxide to magnesium oxide is 1 : 0 and diopside with or without wollastonite may be produced when the ratio of calcium oxide to magnesium oxide is greater than 1 : 0 but not greater than 1 : 1. Silica is used preferably in an excess of from 8 to 25%. Dolomite or calcined dolomite may be reacted with the silica. The process may be carried out in a rotary kiln with a throughflow-time of from 1 to 4 hours and a burning temperature of from 1200‹ to 1420‹ C.
Patent GB-1301908-A (GB)
IPC: H04Q3/545
Filed: 1970-07-01
Abstract: 1301908 Signalling circuit conditions to exchange processors PLESSEY TELECOMMUNICATIONS RESEARCH Ltd 30 June 1971 [1 July 1970] 32004/70 Heading H4K Change of state of circuit elements, such as contacts AC, BC, providing the change is of sufficient duration causes a common control processor to be called up over a lead CH, the processor obtaining access in reply by means of code leads SA, SB, to open gates AG1, BG1, to receive the contact states on leads AS BS. Changeover of contacts AC, BC, is given a persistence check by RC circuits with capacitors AC1, BC1. If changeover persists for longer than 5 ms., bi-stables AST, BST, switch correspondingly. If either or both contacts make, capacitors AC2, BC2, normally charged to the voltage of Zener diodes AZ1 BZ1, discharge to cause the bi-stable pair of gates G2, G3 to set. With G2, G3 set, lead CH signals the processor which responds with SA, SB code markings to gate G6 to open the gates AB1, BG1 by way of gate G4 and inverter I1. Output from G4 cuts off the demand signal in CH by disconnecting G5. Inverter I2, at this time, signals the processor over EF that the contact states are being signalled on leads A5, B5. When the signalled states have been recorded the processor signals in lead RE5, via gate G7, to reset the bi-stable pair G2, G3, cutting off G4 and the line gates. If either or both contacts AC, BC, open from the made condition, capacitors AC3, BC3, normally charged, during the made condition of the contacts as relayed by inverters AI, BI, to the voltage of Zener diodes AZ2, BZ2, are discharged and effect setting of the bi-stable pair G2, G3. As before, with the making of the contacts, the processor is called in by a demand in lead CH, the processor collects the contact states as signalled in leads AS, BS, and resets the pair G2, G3. It is said that up to ten contacts, such as AC, BC, can be served by such a circuit. The signalling system is a modification of that disclosed in Specification 1,255,068.
Patent GB-1303885-A (GB)
IPC: B22D11/14
Filed: 1970-01-22
Abstract: 1303885 Continuous casting KAISER ALUMINUM & CHEMICAL CORP 22 Jan 1970 3197/70 Heading B3F [Also in Division F4] Molten metal, e.g. Al, passes from a supply such as the contents of a holding or melting furnace 10 directly to a tundish, such as a trough 15 as shown, thence, under a dross layer 17, thence at least one vertical or horizontal mould 21, the layer 17 remaining substantially static. A uniform level is maintained in the trough to avoid disturbing the dross, at least beyond an optional filter 45, by providing adequate trough capacity and achieving a balance between the size of the trough outlet or outlets 20 to the or each mould 21 and the strand withdrawal rate. The trough may have means for removing dissolved gas. The furnace 10 may have provision for gas removal or for filtering. After it has been closed to allow dross separation, a valve 18 is opened to charge the trough 15 (preheated by electric elements, e.g. to 1320‹ F. for Al) and may then be opened and closed manually or automatically (e.g. by float 30 and a controller 31) to maintain a constant level in the trough. The moulds 21 may be of different sizes and shapes, e.g. round or square, and the trough outlets 20 to the moulds may be through the trough bottom; they need not be completely below the dross/ metal interface as shown and may intersect the upper edge of the trough; they may be round or oval and there may be more than one to a mould. The moulds have provision for the use of lubricant and cooling-water and they are associated with cutting equipment; they may have insulated upper portions. A device 33 which senses differences in level in the trough 15 and a mould 21 by means of floats 40, 41 adjusts the speed of withdrawal rolls 36 to prevent an excessive level difference. Trough and outlet dimensions and withdrawal rates are quoted.
Patent GB-1311899-A (GB)
Title: Information sampling systems
IPC: H04Q9/00
Filed: 1970-06-03
Abstract: 1311899 Scanning data at remote stations HONEYWELL Inc 3 June 1970 26881/70 Heading G4H An information sampling system comprises a plurality of remote stations 1A, 2A, 1B, 2B, a central station 10 and transmission line 11 for scanning the remote stations in turn, each remote station having apparatus 31 responsive by change of status to a given condition, e.g. an alarm condition, a change of status reporting line 32 connected to apparatus 31 adapted to provide an output signal upon the first change of status of apparatus 31, a bistable hold circuit 35, 43 connected between the apparatus 31 and the line 32 and a control line 55 connected to the hold circuit to enable or disable the hold circuit so that during scanning of a station the hold circuit is disabled so that a further change of status has no effect until all the remote stations have been sampled, an enabling signal then being provided to allow the change of status line to respond. The apparatus 31 controls a switch 30, the output of which is applied through gate 33, or inverter 40 and gate 34 to set or reset the flip-flop 43. The outputs of flip-flop 43 are used to set a latch 44 on any change of status. Each area A, B &c. has a receive and transmission circuit 20 which scans the outputs from the regional stations 1A, 2A &c. in turn. When the circuit is operating the input 52 of circuit 53 is energized this circuit providing a signal to block gates 33 and 34 to prevent further changes of flip-flop 43 while read-out is taking place. The actual status of switch 30 is signalled on lines 61, 62 and the fact that there has been a change, on line 32. At the central station the change causes the signals on lines 61, 62 to be printed, e.g. in the form "1A-Alarm". While area B is being scanned the area A circuit 20 first resets the tripper and then opens the gates to flip-flop 43. If the switch has not opened trigger 44 is again set and on the next scan cycle this causes to be printed "1A-Return to normal".
Patent GB-1312038-A (GB)
Title: Apparatus for transferring paper sheets in piles from a stack  thereof towards a treatment zone
IPC: B65H3/32
Filed: 1971-06-16
Abstract: 1312038 Feeding sheets G A B GADLER 16 June 1971 28095/71 Heading B8R A feed device for transferring sheets in batches 12 from a pile 13 thereof, e.g. to a sheet cutting apparatus 1, comprises a reciprocable feed carriage 8 having finger extensions 15 at the edge thereof facing the pile 13 and having a rotatably driven feed roller 17 for engaging, when the carriage 8 is advanced towards said pile, underneath the uppermost one 23 of a plurality of rails 28 inserted to divide the pile into batches, the pile being supported on an adjustable pile support 20 and a control member being provided for lifting the rear edge of the separated batch as the carriage reaches its limit of advance. The control member comprises a plate 19 having a lip 31 which engages the edge of the batch and lifts it as guides 18 on the extensions 15 engage and lift rollers 32 on the plate. The pile support may be lifted by a screw device controlled by a photo-electric pile height detector 33. The carriage 8 and worktable 5 of a guillotine cutter 4 include batch receiving surfaces having air nozzles (11), Fig. 1 (not shown), operated by the weight of the batch acting on ball valves (not shown), for supporting the batch. Limit switches control carriage movement and operation of the guillotine and an air compressor.
Patent GB-1312621-A (GB)
Title: Gas cushion vehicles
IPC: B60V3/04
Filed: 1969-01-10
Abstract: 1312621 Air cushion vehicles; elevated railways TRACKED HOVERCRAFT Ltd 10 April 1970 [10 Jan 1969] 1694/69 Headings B7K and B7L A gas cushion vehicle designed for operation along a concrete track 2 has guide and support gas cushion pads 5, 6 mounted on a vehicle body 10 and supplied with air through flexible ducts 13 arranged so that the pads 5, 6 can move towards and away from the vehicle body 10 but meet increasing resistance to movement as they approach the body 10 due to an increase in the effective area of the ducts. The pads 5, 6 comprise a base 16 and outer member 17 arranged to provide a peripheral nozzle 12 from which air is discharged to form a fluid curtain containing an air cushion. The ducts 13 are made of gas proofed fabric and tapered so that, as they collapse due to movement of the pad towards the body 10, the area of the duct acting on the body increases. The pads are connected to the body by linkages 20, 27 each composed of two links 28, 29 pivotally connected together and to the base 16 and body 10 respectively. Linkages 20 and 27 are arranged mutually at right angles so that movement of the pad relative to the body both longitudinally and transversely of the track is prevented. Linkages 27 of adjacent support pads 6 are connected by a torsion bar (25), Fig. 5 (not shown), to give the vehicle stability in roll. The vehicle is driven by two linear induction motors having stators 7 attached to the vehicle and a reaction rail 8 attached to the track. Skids or wheels may be provided on the vehicle or on the pads in case of failure of the air supply.
Patent GB-1316952-A (GB)
Title: Process for the manufacture of organic isocyanates
IPC: C07C263/02
Filed: 1969-06-24
Abstract: 1316952 Organic isocyanates IMPERIAL CHEMICAL INDUSTRIES Ltd 9 June 1970 [24 June 1969 24 April 1970] 31892/69 and 19852/70 Headings C2C and C2P  Organic isocyanates are prepared by reacting an organic halide containing at least one aliphatically bound halogen atom (including those cycloaliphatically bound) with an alkali or alkaline earth metal or ammonium or methyl- or ethyl-substituted ammonium cyanate in the presence of iodine, an iodine chloride, bromine or mixtures thereof as catalyst. The process may be carried out in a solvent and the temperature is preferably in the range 100-160‹ C.