baber/WOPTO huggingface dataset:
Patent GB-1413676-A (GB)
Title: Extrusion process control systems
IPC: B29C48/395
Filed: 1972-10-10
Abstract: 1413676 Automatic control systems INDUSTRIAL NUCLEONICS CORP 10 Oct 1972 [31 Jan 1972] 46716/72 Heading G3R An extruder system produces a sheet material (plastics) and has variable speed feed screw and take-away rollers 15 controlled in response to first and second error signals formed by comparing measured values of thickness and throughout (weight per unit time) or take-away speed with respective set point values, one of the variable speed devices being controlled as a function of both error signals and the other as a function of the second error signal only. As shown, the thickness is measured by a scanning radiation gauge 13 and is averaged at 21. At the end of each scan a switch 22 connects the average value to comparator 23 which also receives the thickness set point, set either manually or by an optimizer 25 as disclosed in Specification 1266221, which adjusts the set point so as to keep constant the percentage of material below a minimum thickness. The resulting thickness error signal is fed to a device 26 which calculates the change in feed screw speed that will be needed to correct the thickness, this being dependent upon the takeaway or line speed VL. The correcting value is periodically connected to a digital screw speed controller 35 as an adjustment to its set point VS. To avoid the effect of transport lug a technique disclosed in British Patent 1361211, using a mathematical model, may be used. The take-away (or line) speed is measured at 15 and compared with its set point at 32 to control the line speed by controller 38 directly, and a device 31 calculates (using a mathematical model of the extruder) the corresponding change that must be made to the feed screw speed if thickness is not to vary as a result of the charge in line speed. This signal is combinded with the thickness control signal at 34. Adjustment to the line speed or screw speed is inhibited or limited to a predetermined value by the device 31 if any of a number of limiting conditions is reduced. The limits are associated with the pressue pH in the extruder head, the screw motor current MA, any excessive build up of sheet between the extruder and a following processor, and limiting values for the line and screw speeds VL, VS. In an alternative embodiment Fig. 4 (not shown) the throughput, as measured by the feed screw speed, is controlled, this signal being compared with a set point and the error used to control the screw speed directly and to modify the line speed by the appropriate amount to prevent a resulting change in thickness. The thickness control loop adjusts the line speed in this embodiment.
Patent GB-1237753-A (GB)
Title: Column for carrying out organic chemical reactions in contact with fine, particulate catalysts
Inventor: SENNEWALD KURT
IPC: B01D3/20
Filed: 1968-10-02
Abstract: 1,237,753. Liquid phase catalytic reactions. KNAPSACK A.G. 2 Oct., 1968 [18 Nov., 1967], No. 46724/68. Heading B1F. Esterification apparatus comprises removable reactors 4 and 7 &c which contain catalytic ion exchange particles. The apparatus is saturated with alcohol vapour from boiling alcohol-9, and then acid/alcohol mixture is introduced into the column from 8 and the liquid acid/alcohol/ester mixture runs through the reactors 4 and 7 &c and is dehydrated in trap 2 and 5 by distillation while vapours containing water vapour travel up the column and are removed via condenser 12. Ester/ alcohol vapours may be recycled via 15. The methyl, ethyl butyl esters of acrylic acid, the methyl or amyl esters of acetic acid, and ethers may be produced.
Patent GB-1405448-A (GB)
Title: Slide projector for unsupported flexible slide holders
IPC: G03B23/12
Filed: 1972-10-11
Abstract: 1405448 Optical projection apparatus HANIMEX PTY Ltd and G J FREY 11 Oct 1972 [19 Nov 1971] 46819/72 Heading G2J A slide projector is adapted to receive a slide holder 12 comprising a flexible belt 47 carrying slides 11 by means of grips (not shown) attached to the belt 47. Within a recess 13 of the projector two supports are provided, these being relatively movable towards each other to permit the belt 47 to pass around them and movable apart to tension the belt 47. With the belt 47 tensioned substantially all the slides 11 lie in two packs extending between the supports with only one slide in the projection position 24 on the optical axis 7-7. As shown in Fig. 6 (a section along line 6-6 of Fig. 1) the supports include a shaft 50 driven about a fixed axis 52 and an idler roller 51 carried on a slide 53. The roller 51 is mounted on a pin 73 having a follower 90 in track 91 having branches 91a-91d corresponding to different capacities of slide holder 12. When a holder 12 is to be inserted in the projector, the pin 73 and follower 90 are raised by handle 78 and the assembly on slider 53 moved towards shaft 50 to permit the holder to be placed around the supports. The slider 53 is then moved away from shaft 50 until the follower 90 enters the appropriate branch 91a, b, c or d. Spring 93 ensures that when the handle 78 is released the slider 53 will not move. As shown the shaft 50 is turned by reciprocation of a driver 100 bearing projection 103 engageable with lugs 102a, 102b on spindle 61. A detent 121 holds the spindle after each advance. The driver is reciprocated by the energizing/deenergizing of a solenoid (99), Fig. 9, 13, 15 (not shown) and several of the direction of advance of the belt 47 is provided by energizing solenoid 99 to pivot the driver 100 so that a projection similar to 103 engages the lugs on spindle 61. Alternatively a Maltese cross drive may be used. Attached to driver 100 is rod 137 which moves a V-shaped member 130 between two positions 129 in one of which it aligns the slide in the projection position 24 perpendicular to the optical axis. A shutter, Fig. 14 (not shown) may be provided to block the light path during slide changing. Stops may be provided to prevent slides, adjacent the ones being projected, from blocking the light path, Fig. 13, 15 (not shown). The shutter and stops may both be operated by rod 137. The slide changing may be controlled from console 43 (Fig.1), remotely and by moving the lid 17 from a nearly closed to a closed position. This causes pin 150 to close a switch (149) Fig. 8 (not shown) located at the bottom of an aperture in surface 155. The switch closure energizes the solenoid (99) moving driver 100.
Patent GB-1091951-A (GB)
Title: Apparatus for making articles by extrusion from synthetic plastic material
IPC: B29C48/09
Filed: 1964-11-18
Abstract: 1,091,951. Extrusion dies. OWENS-ILLINOIS Inc. Nov. 18, 1964 [Nov. 18, 1963], No. 46878/64. Heading B5A. An extrusion apparatus comprises a plurality of extrusion heads fed by a single rotatable and axially movable plasticizer screw and each head includes a mandrel having two relatively adjustable telescoped parts one of which is supported in the bore by a spider. In the first example, Fig. 2, the spider 39 supports the torpedo part 40 to which the regulating part 46, 48, 49 is screwed within a recess 43. A tool engaging recess 51 allows rotation of the part 46, 48, 49, the resulting axial movement altering the restriction 35. In a second example, Fig. 7, the torpedo part 75 supported by the spider 76 extends within a recess 80 in the regulating sleeve 87 screwed on a post 86 having a toolengaging recess 94. The head 88 of the post 86 is located in a recess in the part 75. In another similar example, the sleeve part telescopes within an extension sleeve of the torpedo part.
Patent GB-1442659-A (GB)
Title: Plants for the production of a sintered web of plastics powder  for the manufacture of separators for accumulator batteries
IPC: B29C67/04
Filed: 1973-10-09
Abstract: 1442659 Tunnel kiln L JUNGFER [trading as AKKUMULATORENFABRIK DR LEOPOLD JUNGFER] 9 Oct 1973 [29 Nov 1972] 46974/73 Heading F4B A sintered web of plastics powder for the manufacture of separators for accumulator batteries is provided on an endless steel belt 2. The upper run of the belt with the powder S, Fig. 2, thereon, for sintering is passed through a tunnel kiln 1 wherein heating is by hot air. A hot air circulation system comprises a blower 6, Fig. 1, a heat exchanger 4 heated by an oil burner 5, and circulation ducts 7, 8. Duct 7 supplies hot air distributor pipe 9 and intake ducts 11 to the kiln. Within the kiln the hot air flows through sections 21 of the space delimited, laterally and at the bottom, by the interior boundary of the lower part of the kiln, and at the top, directly by the belt. The flow is from the intake ducts 11 to outlet ducts 12 being guided by deflector plates 19, 20, Fig. 2. The air then passes via a return air collector pipe 10, Fig. 1, to the duct 8. The hot air circulating below the belt is arranged to be at a slightly higher pressure than the gases above the belt thereby preventing harmful gases above the belt from passing downwardly around the belt edges and contaminating the circulating hot air. Because of the over-pressure below the belt, some hot air escapes from beneath the belt. This is drawn off, together with fumes, through hoods 24, Fig. 2. To make good the air lost from the hot air circulating system, outside air is taken into the system through duct 13, Fig. 1. This is preheated at 14 by combustion gas 5a from the oil-burner 5. To ensure a uniform temperature across the conveyer belt, flow-controlling obstacles (27), Figs. 6 and 7 (not shown), are inserted in hot air flow channels 26, Fig. 2. Support rollers 22, Fig. 2, are provided for the belt.
Patent GB-1443576-A (GB)
Title: Bolt mechanism
IPC: E05C1/04
Filed: 1972-07-18
Abstract: 1443576 Locks ELLIS (COLCHESTER) Ltd 16 Oct 1973 [18 July 1972] 47105/73 Divided out of 1443416 Heading E2A A bolt 50 engaging a keeper 42 is connected to an operating push-button 56 by a flexible wire cable 52 which enables it to be projected against the action of return spring 62 but which prevents the transmission of lateral picking forces. The button and bolt can rotate to defeat sawing. The bolt may be locked by the bolt 37 of a push-button type cylinderlock 32 engaging behind the rear 8 of the main bolt or in a circumferential groove in it. The outer end of the push-lock bore 34 may be sealed by a tell-tale lead disc. Several locks may be used and one or more may be located in the keeper 44.
Patent GB-1369010-A (GB)
Title: Numerically controlled drawing machines
IPC: G05B19/408
Filed: 1971-10-11
Abstract: 1369010 Cutting apparatus ARISTOWERKE DENNERT & PAPE KG 11 Oct 1971 [12 Oct 1970] 47270/71 Heading B4B [Also in Division G3] A numerically controlled drawing machine has a controller and a knife adapted to cut lines in a laminated sheet under the direction of the controller. The knife has a cylindrical shank 7 and symmetrical cutting edges 20, 20<SP>1</SP> meeting at an apex 19. In use, the turning axis of the follow-up control arrangement of the machine coincides with the axis of the knife so that, when cutting a laminate, a corner cut can be made by rotation of the knife.
Patent GB-1490208-A (GB)
Title: Method of producing a ductile rare-earth containing superalloy
IPC: C22C1/02
Filed: 1974-11-01
Abstract: 1490208 Rare earth containing superalloys CABOT CORP 1 Nov 1974 [1 Nov 1973] 47331/74 Heading C7D A rare earth containing superalloy (defined as a heat resistant high strength alloy containing at least 50% of CO + Ni + Fe + Cr, with Cr being essential, with optional additions of W, Mo, Ti, Al, Nb and Ta) is made by melting the alloy, adding the rare earth (s) to the melt, forming the melt into an electrode and then electro-slag remelting the electrode. The slag may be pure CaF 2  or CaF 2  70%, Al 2 O 3  15% and CaO 15% and the rare earth may be added as a master alloy with Ni.
Patent GB-1485656-A (GB)
Title: Multiplexed instrumentation with priority logic
IPC: G07C5/08
Filed: 1975-11-19
Abstract: 1485656 Selective signalling MOTOROLA Inc 19 Nov 1975 [31 Dec 1974] 47680/75 Heading G4H In a monitoring system, e.g. in a vehicle, a multiplexer connects a plurality of sensors in turn in a priority order to a comparator for comparison with respective references, an "outof-condition" output from the comparator actuating indicating means also responsive to the multiplexer and programming the multiplexer to thereafter connect only the "out-ofcondition" sensor and the sensors of higher priority. The indicating means has a lamp for each sensor, selected by the multiplexer which includes a clock-driven ring counter. The "outof-condition" sensor output may be routed to a meter for display. A manual switch permits any sensor output to be displayed.
Patent GB-1100742-A (GB)
Title: Improvements in machines for coiling wire mesh
IPC: B21F33/00
Filed: 1966-10-24
Abstract: 1,100,742. Winding wire mesh. ENTWICKLUNGS - u. VERWERTUNGS G.m.b.H. 24 Oct., 1966 [19 Nov., 1965], No. 47691/66. Heading B3E. Apparatus for coiling wire mesh 24 made of wires extending longitudinally and transversely bonded together at the crossing points comprises a power-driven coiling mandrel 18 and an applicator device which presses the wire mesh inwards towards the coiling mandrel during the coiling operation, the applicator having at least one endless series of grippers 1 capable of travelling around an endless closed path the grippers projecting, along a part of the path, into the path of movement of the transverse wires of the wire mesh being coiled, with the result that the grippers are dragged along by the transverse wires, the grippers 1 having a device for restraining their movement around the path so that they act to tension the wire mesh as it is coiled. The grippers 1 may be provided by two or more endless hooked chains running over wheels 2, 3. The wheels 3 are carried by levers 5 pivoted, about shafts 4, to housings 7 and urged by a spring 6 to tension the chains 1. The housings 7 are pivoted and urged by springs 20 up towards the mandrel 18. The shafts 4 are mounted in levers 8 pivoted at 9 and urged by hydraulic means 17 towards the mandrel 18. The shaft 4, on which the wheels 2 are also mounted, serve to brake the rotation of the wheels 2, a sprocket 10 on each shaft 4 driving through a chain 11 an oil pump 13 pumping oil through a throttling valve. 15. Other braking means could be employed. The applicator may alternatively consist of a braked roller having grippers around its periphery.
Patent GB-1207307-A (GB)
Title: Dynamo electric machines
Inventor: PANNELL DENNIS ALEXANDER
IPC: H02K19/38
Filed: 1966-10-26
Abstract: 1,207,307. Alternators. ROTAX Ltd. 24 Jan., 1968 [26 Oct., 1966], No. 48030/66. Heading H2A. Laminations of thicker section are provided at the ends of the rotor poles so that greater support for the rivets securing the end winding support members is obtained. A high-speed alternator has a casing 100 surrounding a laminated annular stator core 101 which has skewed slots for the output winding, where the slots are only adapted to receive wedges 109 at spaced-apart positions along the stator. The stator laminations are secured together 'end ,to end plates (103) by axial welds on the outer periphery. A laminated rotor core 18 is mounted on hollow shaft 11 and axially secured by screw 23. The rotor laminations have salient poles 19 and are secured together by rivets 22. A pole-face damping winding comprises conductors 24, 25 which are shortcircuited at the axial ends of the poles by being brazed to conductive plates 26, 27. Windings 28, of copper strip, surround each polepiece and are secured by wedge 30 against the underside of the pole-face. At the axial ends of the rotor core, L-shaped support members 29 are provided end secured by rivets 31, 32. In a modification the conductive plates are eliminated by making the end laminations thicker and conductive, either by using a copper-beryllium alloy or by plating a ferrous lamination with copper or silver. Excitation.-An exciter machine is mounted on the end of hollow shaft 11 and has two similar output winlings 33 each connected through a bridge rectifier circuit to the alternator field winding 28. The exciter field winding 60 is energized from the controlled output of permanent magnet alternator 62, mounted on the hollow shaft extension 15. The bridge rectifiers use oppositely connected pairs of semi-conductor diodes 40 mounted on axially extending arms 36 of heat sink assembly 35. Connector plates 70 are connected to the individual phases of the two 3-phase windings 33 through terminals 71 and the D.C. output of the rectifier bridges is taken to terminals 75, 76. Cooling fluid is drawn through extension 15 and chamber 16 and passes through outwardly directed passages 17 to cool the rectifier Assembly.
Patent GB-1519678-A (GB)
Title: Safety apparatus for resttraining a seated occupant in a vehicle
IPC: B60N2/90
Filed: 1976-11-18
Abstract: 1519678 Safety seats BSG INTERNATIONAL Ltd 18 Nov 1976 [19 Nov1975] 48105/76 Heading A4J [Also in Divisions A3 and B7] Apparatus for restraining a seated vehicle occupant in an emergency comprises lower torso restraining means - a child's seat 4 or a tunnel member 5b - with a panel 5a; 5a, b pivotally supported thereon and a pair of straps 7 connected either to the panel or to levers 19, the straps serving to anchor the apparatus but to allow limited inertial displacement on vehicle deceleration whereupon the panel is pivoted upwardly directly or indirectly by the straps to a protective position in front of the user's chest.
Patent GB-1111042-A (GB)
Title: Improvements in or relating to substituted tetrahydronaphthalenes and substituted indanes and the manufacture thereof
IPC: C07D213/16
Filed: 1965-04-12
Abstract: Novel pyridine derivatives of the general formula <FORM:1111042/C2/1> wherein -CnH2nrepresents alkylene and separates the carbon atom carrying the phenyl radical from the carbon atom marked with an asterisk by 1 or 2 carbon atoms, n is 1 to 6, Py is 2-, 3-, or 4-pyridyl, R1 represents hydrogen or at least one substituent selected from C1- 8 alkyl, and halogen, R2 is H, or at least one of C1- 8 alkyl, C3- 8 alkenyl, CF3, C1- 8 alkoxy, C3- 8 alkenyloxy, C4- 7 cycloalkoxy, halogen, C1- 8 alkylenedioxy or C1- 8 alkylmercapto, are prepared by reacting a compound of the formula <FORM:1111042/C2/2> with the appropriate pyridyl lithium compound. The invention also includes the pharmacologically acceptable acid addition salts and quaternary ammonium salts of the novel compounds and their preparation by conventional methods.  The products have therapeutic and pesticidal properties.  The ketones of the second general formula above are prepared by reducing the appropriate phenylacetic acid to the corresponding phenylethyl alcohol, converting the alcohol to the corresponding sulphonate by reaction with the appropriate hydrocarbon sulphonyl halide, reacting the sulphonate with the appropriate benzyl cyanide to form the corresponding 2,4-diphenyl butyronitrile which is then hydrolysed to the corresponding acid, the acid then being cyclised in the presence of a Lewis acid to form the required a -tetralone.  The 1-indanones can be prepared in a similar manner.  Therapeutic compositions, useful as antifertility agents, estrogenic agents, anti-estrogenic agents, anti-spermatogenic agents, fungicidal agents and agents for the lowering of lipid and cholesterol blood levels in mammals, comprise a compound of the first general formula above, or a pharmaceutically acceptable acid addition or quaternary ammonium salt thereof.ALSO:Animal pest control compositions contain as the active ingredient a compound of the general formula <FORM:1111042/A5-A6/1> or an acid addition or quaternary ammonium salt thereof, where -CnH2nrepresents alkylene and separates the carbon atom carrying the phenyl group from the asterisked carbon atom by 1 or 2 carbon atoms, n is 1 to 6, Py is 2-, 3-, or 4-pyridyl, R1 is H or at least one of C1-8 alkyl and halogen, R2 is H or at least 1 of C1-8 alkyl, C3-8 alkenyl, CF3, C1-8 alkoxy, C3-8 alkenyloxy, C4-7 cycloalkoxy, halogen, C1-8 alkylenedioxy or C1-8 alkylmercapto, together with a bait and/or attractant. The compositions are effective against rodents, coyotes, foxes, wolves, jackals, wild dogs and birds.
Patent GB-1168990-A (GB)
Title: Looms
IPC: D03D27/08
Filed: 1966-10-28
Abstract: 1,168,990. Take-up motions. SULZER BROS. Ltd. 28 Oct., 1966 [29 Oct., 1965], No. 48379/66. Heading DIE. In addition to the take-up motion the loom has means to move the cloth forward after beat-up. These means are utilised to increase the length of the shed when weaving with highly resilient yarns which would "follow" back the reed after beat-up and impede the gripper shuttle; to produce terry fabric and to produce cloth having weft bar patterning. In Figure 1 the sley 21 is oscillated by a cam 26 and the swords 22 have extensions 24 which pivot a breast beam 15 to move the fell a distance c as the reed 12 moves back after beat-up. In Figure 2 (not shown) the breast beam 15 is oscillated by a separate cam shaped to move the cloth intermittently to produce fast and loose picks to terry weaving or weft bar patterning. The breast beam may be stationery and the take-up roller additionally rotated by axially moving its driving worm or the take-up roller may be rotated by a differential gear having two inputs.
Patent GB-1493257-A (GB)
Title: Urethral introduction catheter
IPC: A61M25/00
Filed: 1974-11-12
Abstract: 1493257 Catheters J G POWERS 12 Nov 1974 48890/74 Heading ASR A catheter tube 18 is slidably received at its forward end in an introducer 28 which has a removable end cap' 20 and fixed at its rear end to a connector 16, a flexible sheath 34 being disposed around the catheter tube 18 and secured to the introducer 28 and the connector, and a lubricant 36 being disposed in the introducer 28. With the sheath 34 extended the catheter tube which, has a rear end cap 22 is disposed in the bore 24 of a tube 26 which contains the lubricant 36, the lubricant being ejected into the body ahead of the catheter tube 18 when it is projected through the introducer thus collapsing the sheath 34. The catheter tube is made of polyvinyl chloride or rubber, the connector of polypropylene, the sheath of polyethylene and the introducer of propylene. The device is sterilely packaged.
Patent GB-1365460-A (GB)
Title: Push-button switch
IPC: H02B1/044
Filed: 1972-10-24
Abstract: 1365460 Mounting switches FRIEDRICH PETRICK GmbH 24 Oct 1972 49029/72 Heading H1N A push-button switch adapted for mounting in an aperture of a panel 13, Fig. 1, comprises a casing 5 having a flanged faceplate 3 engageable with the front of a panel 13 and carrying bowed springs 9 located at one end 10 in slits 8 in the casing 5 and having their other ends engaging within the walls of the aperture of the panel 13 to retain the switch in position. The ends 10 of the springs 9 are located and held in position by transverse grooves 11 on opposite sides of the contact carrier, the springs 9 being located transversely in recesses 7 on opposite sides of the casing 5.