baber/WOPTO huggingface dataset:
Patent GB-1297111-A (GB)
IPC: G01P13/02
Filed: 1968-10-05
Abstract: 1297111 Rotary angular transducer recording apparatus DEFENCE, SECRETARY OF STATE FOR 10 Dec 1969 [5 Oct 1968 30 Nov 1968] 47314/68 and 56974/68 Headings G1J and G1N [Also in Division H1] A continuously rotatable and reversible angular position transducer suitable for indicating wind direction comprises a rotary potentiometer and switching means operable in dependence on rotor position to switch the input supply from a first position in the potentiometer arrangement, AB in Fig. 1, to a second position CD. The arrangement avoids the continual wide variations in output signal which would otherwise occur when the motor vacillates near input terminals. As shown, a rotor contact 3 sweeps contacts studs between a number of equal resistors forming a rotary potentiometer. On opposite sides of the potentiometer diodes, 78 are provided whose forward resistance is equal to the resistors and an input supply 12 is fed either to AB or to CB through a change over relay 9 controlled by a magnetic reed switch 11 actuated by a magnet 14 in dependence on motor position. Output is taken from a fixed terminal 16 (or potential-divider) and the rotor at 15 and fed to a recording instrument, Fig. 1a. Fig. 2 (not shown) discloses by an outer ring of numbers the voltages relative to terminal 16 (North) for a 17v. supply at AB, and by inner numbers for a supply at CD. With supply at AB clockwise rotation from 100 degrees causes the voltage to step from -13v. at 100 degrees, through -19v. at 180 degrees, -5v. at 260 degrees, 0 at 0 degrees to +4v. at 80 degrees. Reed switches 11 now operates to change the supply to CD and further rotation gives +5v. at 100 degrees, +9v. at 180 degrees and +13v. at 260 degrees. At this point the relay again operates returning the supply to AB and a sudden change to -5v. arises on further rotation to 280 degrees. Two ranges of 360 degrees are thereby provided as shown in Fig. 1a these overlapping by 180 degrees. The supply positions need not be diametrically opposed, but should remain in a symmetrical relationship about the fixed tapping. Alternative methods of operating the change over relay 9 are disclosed in Figs. 10 and 11 (not shown). In Fig.3  (not shown) the switching arrangement is a bistable transistor circuit operated when the contact studs at AB or CD are bridged. Magnetically operated switches, Fig. 4 (not shown) on lightsensitive switches, Fig. 5 (not shown) or camoperated switches, may replace the rotary brush 3. In a modified system, Fig. 6, the supply positions are alongside each other and a switch arm 22 is arranged to close to a terminal 17 when a makebefore-break contact bridges terminals GE, and to terminal 19 when it bridges EF. Again two ranges are provided but in this instance they do not overlap, Fig. 6a (not shown). A member of arrangements for effecting the switching in dependence on the motor position are disclosed, Figs. 7,8, 9 (not shown).
Patent GB-1297650-A (GB)
IPC: C02F1/44
Filed: 1969-12-02
Abstract: 1297650 Membrane module for reverse osmosis AQUA-CHEM Inc 2 Dec 1969 [6 Dec 1968] 58892/69 Heading B1X A reverse osmosis apparatus 10, e.g. for desalination, comprises at least two tubular semi permeable membranes 34, e.g. of cellulose acetate, separated from adjacent membranes by either interposed tubular porous sheets 32, e.g. of paper or porous plastics or by one such continuous sheet. Grooves 16, 24 of an impermeable casing 12 and core 20 support the membranes and sheets. Each groove 24 is bounded by ridges located between adjacent membranes and channels 28 in the core 20 communicate with the porous sheets 32 via these ridges to provide a liquid flow path to the core for the pure liquid permeating through the membranes. Alternatively the channels 28 may be omitted and the core be made of porous material. The membranes may be cast onto the inside of the porous sheets or extruded therewith so that only one layer of porous sheet separates adjacent membranes. The outer casing may be strengthened by resin impregnated fibre glass strands 14. In use, Figs. 3, 4 (not shown) the apparatus has end caps which in the case of parallel flow have conduits connecting each membrane to a common feed inlet and a common concentrate outlet, or in the case of serial flow have conduits connecting adjacent membranes. The serial and parallel flow conduits may be combined.
Patent GB-1301303-A (GB)
IPC: B60T8/1761
Filed: 1969-12-24
Abstract: 1301303 Antiskid braking systems AISIN SEIKI CO Ltd and SHARP CORP 24 Dec 1969 [26 Dec 1968 27 Dec 1968] 62923/69 Heading F2F An antiskid braking apparatus for a vehicle has first and second sensors 11, 12 and 10 responsive respectively to rotational speeds of front wheels 104, 105 and rear wheels 100, 101 a differentiator for producing a signal dependent on the angular acceleration or deceleration of the rear wheels. A control valve 16 coupled thereto for isolating rear brakes from a fluid pressure source when deceleration reaches a predetermined value, a first circuit connected to sensor 10 and to a device 15 responsive to vehicle deceleration for weighting the output signal of sensor 10 in accordance with vehicle deceleration, a second circuit for comparing the output of sensors 11, 12 with the weighted output signal of sensor 10 and to control a second valve to isolate the front wheel brakes from fluid pressure when the difference between the weighted output signal and the output signal of sensors 11, 12 reaches a preselected value. The device 15 responsive to vehicle deceleration comprises a pressure responsive resistor 112 upon which an inertia mass 109 exerts a pressure depending upon the instantaneous deceleration of the vehicle.
Patent GB-1302247-A (GB)
IPC: G01F1/08
Filed: 1970-03-11
Abstract: 1302247 Measuring fluid flow E M I Ltd 19 April 1971 [11 March 1970] 11553/70 Heading G1N [Also in Division G4] In order to measure the rate of flow of liquid in a fluid comprising liquid and entrapped gas, pulses from a transducer 3 whose frequency is dependent on the rate of total fluid flow are amplified at 4, squared at 5, differented at 6, and fed to the primary winding 7 of a transformer T whose secondary winding 8 is connected with probes 9, 10, in the liquid. The fluid present provides a resistive load to the winding 8 and this varies according to whether the fluid is liquid or gas, and consequentially the amplitude of the output pulses is also varied accordingly. These pulses are fed to a discriminator which only allows high amplitude pulses (liquid) to pass to a frequency meter 22 and a counter 21 which measures the volume flow. The transducer 3 comprises a pick-up coil sensing perturbations in a magnetic field due rotation of a turbine 2.
Patent GB-1303502-A (GB)
IPC: B29C48/11
Filed: 1970-04-30
Abstract: 1303502 Internally divided tubular film INITIAL PLASTICS Ltd 13 May 1971 [30 April 1970] 20925/70 Headings B5A and B5B A tubular film 1, as shown in cross-section in Fig. 2, consists of tubular sections 6 united by webs 3 and 4 so that further tubular sections 7 are formed. The film is made from thermoplastic material and has walls less than 0À020 inch thick. It is produced by extruding the molten thermoplastic into a film of similar cross-section but with thicker walls which is then subjected to internal pressure by inflation whilst in a softened condition to expand it and give thin walls. The plastics material is preferably polyethylene, and is preferably inflated whilst being extruded, the free end of the tubing being closed with nip-rolls.
Patent GB-1311851-A (GB)
Title: Machines for smoothing an polishing lens
IPC: B24B13/02
Filed: 1969-04-30
Abstract: 1311851 Grinding lenses E M CROCKFORD 27 July 1970 [30 April 1969] 21978/69 Heading B3D A lens smoothing and polishing machine comprises a work-holder 6 for a lens 5, a tool holder 12 for a tool 13, means 75 for holding the tool in engagement with the lens, and means for driving the holders to produce relative motion thereto of which one holder has circular translatory motion about a first axis which has orbital motion about a second axis, the driving means also being coupled to the other holder to impart eccentric motion to the other holder about the second axis, and the coupling including means for adjusting its eccentricity relative to the second axis. As described, the lens 5 is carried by a holder mounted by a ball joint 7, or tapered spigot 10 on the upper end of a wobble bar 3 which is non-rotatably supported in a sleeve 23 mounted on the pivots 24 of a gimbal mounting 25. The lower end of the bar 3 has a sliding connection 26, with a rod 27 having a ball 28 received in a block 29 carried by a disc 43 having a slotted adjustment 44, 45 with a lower disc 42 whereby the radius of the block 29 relative to disc 42, and hence the inclination of the bar, is adjusted. The disc 42 is secured to a gear 41 which is rotatably mounted coaxial with a pulley 36 and connected by planet gears 38, 39 rotatably mounted on the pulley to a fixed gear 37. The pulley is driven by a belt 35 from a shaft 30 connected by gearing 31, 32 to an electric motor 33. The tool 13 is carried by a holder 12 and between the faces of the tool and workpiece is a porous sheet 14 which is impregnated with abrasive slurry supplied from the outlet 15 of a pump 16 which is driven by shaft 30 and connected by drain pipe 18 to a collecting tank 20, a bellows 22 sealing the gimbal mounting from the contents of the tank. The holder has a ball connection 48 with a driving pin 70 eccentrically adjustable on a spindle 56 but is held against rotation about its own axis but permitted to effect a circular translatory movement by a peg connection with a block 46 supported by a linkage 49, 52 from a bracket 54 on the frame of the machine. The spindle 56 has a splined connection 64 with a pulley 63 belt driven from the motor 33 and is located in the eccentric bore of a sleeve 57 having a pulley 60 driven by a belt 61 from the shaft 30. The spindle, at its upper end, has a pin and groove connection 72 with a linkage 74 operable by a pneumatic motor 75 to raise and lower the tool and adjust the pressure applied by the tool to the workpieces. The tool is thus driven with a circular translatory motion about the axis of the spindle 56 which is moved in a circular path by rotation of the sleeve 57. The workpiece is rotated and moved in an orbital path of a radius determined by the relative adjustment of the discs 42, 43. The tool and workpiece may be reversible, and the workpiece may be convex or concave.
Patent GB-1311859-A (GB)
Title: Safety gates
IPC: E05D7/02
Filed: 1969-09-08
Abstract: 1311859 Reversible hinge F W J MULLETT 26 June 1970 [8 Sept 1969] 44221/69 Heading E2F A gate comprises a tubular frame 4 and a sleeve 5 having means 6 for attachment to a support structure, the sleeve being slidably and rotatably mounted on the frame 4 and having saw-toothed castellations 7, 10 at each end adapted for cooperation with a projection, e.g. a pin, 9, on the frame 4; the castellations being so arranged that the gate can be converted from left hand to right hand opening by inverting the gate. A notch 8 may be disposed between each castellation. The means 6 may comprise half a scaffold fitting welded to the sleeve. A single pin 9 may be provided between two spaced sleeves 5 or spaced pins may be provided on either side of a single sleeve 5. The gate may be a safety gate for scaffolding. (For Figure see next column)
Patent GB-1313850-A (GB)
Title: Inflatable structures
IPC: B63B7/08
Filed: 1969-08-26
Abstract: 1313850 Inflatable boats DUNLOP Ltd 26 Aug 1970 [26 Aug 1969] 42406/69 Heading B7A Inflatable inner tubes 6 are drawn into hollow boat sides 2, 3 by cards 10 which pass through holes 11 to form either a painter or a life line round the boat. Figs 3-6 and 11 (not shown) illustrate a number of devices for sealing the holes through which the tubes 6 are inserted, and the manner in which the cards are anchored to the tubes is described in detail in connection with Figs. 7-10 (not shown).
Patent GB-1315671-A (GB)
Title: Method and apparatus for use in applying particulate material to articles for the purpose of coating the same
IPC: B05B16/00
Filed: 1969-01-31
Abstract: 1315671 Spraybooths BERRIDGE ENG Ltd 29 April 1970 [31 an 1969] 5302/69 Heading B2L  A spray both in which powdered coating material is electrostatically sprayed through a window 15 on to an article suspended in a chamber 12 comprises a duct 20 which draws air and any excess particulate material from the vicinity of the window. The duct leads to a second chamber 13 in which filter tubes 50 are provided which connect the duct to a collecting trolley 60. Air is drawn from chamber 13 by a fan and draws air from the filter tubes 50 and hence from the opening 27 in the end of the duct. The opening 27 extends across the full width of the bottom of the window. The bottom plates 21, 22 of the duct are removable for cleaning of the duct and a slot 29 is provided so that their upper surfaces can be swept before the fan is switched off. A low velocity extraction is provided in the wall opposite window 15 by a hinged plate which forms part of the side wall of the duct. (For Figures see next column)
Patent GB-1315781-A (GB)
Title: Automatic tape recording-reproducing apparatus
IPC: G11B15/675
Filed: 1971-04-26
Abstract: 1315781 Cassette recorders RI-EL RICERCHE ELETTRONICHE SRL 26 April 1971 11446/71 Heading G5R A cassette recorder includes an axially movable reel drive spindle. In the arrangement shown, a cassette 6 (Fig. 2) engages a lug 29 on a lever 28 (Fig. 4) on being loaded into a holder 5. As a consequence, the lever rotates, a spoke 22 on a plate 19 is unlatched, and a spring (24, Fig. 5, not shown) pulls the plate to the right. When a roller 17 on the plate rides off a lower part of a cam projection 16 on the holder 5, a further spring 26 is able to pull the pivoted holder downwards to a horizontal operating position where spindles 7, 8 are engaged. During these movements, spindle 7 is elevated axially from its non-engagement position of Fig. 2. For this purpose, the plate 19 is caused to engage and rotate a biased lever 35 as the plate moves to the right; an inclined portion 40 of lever 35 thereupon forces spindle 7 upwards against the action of a spring 41. To eject the cassette, the plate 19 is pushed manually to the left; lever 35 is thus moved back, spring 41 forces spindle 7 downwards, roller 17 pushes holder 5 upwards, and lever 28 and projection 29 force cassette 6 outwards. Spoke 22 eventually relatches in lever 28.
Patent GB-1317953-A (GB)
Title: Construction of boiler stacks
IPC: E04H12/28
Filed: 1970-05-20
Abstract: 1317953 Boiler stacks TRUE FLUE Ltd 6 Aug 1971 [20 May 1970] 24515/70 Heading F4J A boiler stack comprises a casing formed largely of precast concrete blocks 11 with a refractory lining spaced therefrom, each block having an upper recess 12 and a lower rib 13 for interengagement with similar members on adjacent blocks and side recesses 14 defining cavities as shown with adjacent side blocks. As each course of blocks is laid shuttering 17 is disposed to close said cavities and vertical reinforcing rods are disposed therein with a reinforcing ring 18 in the annular space defined by the recesses 12. Thereupon the said cavities and annular space are filled with concrete to set in situ and the next course is laid. Essential openings into the stack are formed by replacing some of the blocks 11 by others defining said openings (20, Fig. 4, and 21, Fig. 3).
Patent GB-1318279-A (GB)
Title: Steroid compositions
IPC: A61K38/00
Filed: 1970-12-01
Abstract: 1318279 Compositions comprising steroids IMPERIAL CHEMICAL INDUSTRIES Ltd 8 Oct 1971 [1 Dec 1970] 57057/70 Heading A5B Pharmaceutical. compositions comprise a solution of fluocinolone acetonide and/or fluocinonide, or hydrocortisone acetate, triamcinolone acetonide or betamethasone valerate, in benzyl alcohol.
Patent GB-1318349-A (GB)
Title: Containers
IPC: B65D88/56
Filed: 1969-10-21
Abstract: 1318349 Skips H E TITLEY and W J HARRIS 19 April 1971 [21 Oct 1969] 51520/69 Heading B8H A container is provided at each side with a pair of lower trunnions 4, one of which is engaged in a slot 10 in a lifting arm 6, 7, and an upper trunnion 2 which is adapted to be engaged by a hook 11 formed on the lifting arm. The arrangement is such that when the lifting arms are raised, by a crane hook engaging a stirrup 8, so that the hooks 11 engage the trunnions 2, the container is lifted on an even keel. When the lifting arms are raised such that the hooks 11 do not engage the trunnions 2, the container tips to discharge its contents, Figs. 3- 5 (not shown). In a modification, Fig. 10 (not shown), the container rim is formed with a lip to facilitate tipping of the container against a tipping rail.
Patent GB-1319228-A (GB)
Title: Liquid filled medical device
IPC: A61H21/00
Filed: 1971-02-23
Abstract: 1319228 Indicating muscle movements E BUNING 23 Feb 1971 5164/71 Headings A5K and A5R. Apparatus for indicating movement of the muscles of the pelvic diaphragm during evercise of said muscles comprises a hollow flexible member C filled with coloured liquid and communicating via a tube T with a device which, when the member C is inserted into the vaginal canal, indicates movement of the pelvic muscles by utilising the flow of liquid F into or out of the member C, there being a clamp 25 at one end portion 22 of the member C and a clamp 26 at one end portion 21 of tube T to facilitate separation of the tube and member C and insertion of member C into the vaginal canal. The indicator may comprise a liquid reservoir 14 with a graduated column 16, or a pressure operated device having an orifice for restricting fluid flow from the member C.
Patent GB-1320282-A (GB)
Title: Apparatus for controlling a multicolour rotary sheet printing  machine
IPC: B41F33/00
Filed: 1971-10-14
Abstract: 1320282 Printing apparatus POLYGRAPH LEIPZIG KOMBINAT FUR POLYGRAPHISCHE MASCHINEN UND AUSRUSTUNGEN VEB 14 Oct 1971 47774/71 and 44425/71 Addition to 1294640 Heading B6C Apparatus for controlling a multi-colour sheet fed rotary printing machine having a plurality of printing units each provided with displacement means for effecting relative displacement between certain components of the respective printing unit, the apparatus comprising a shift register, means for applying a sheet signal indicating the presence of a sheet in the sheet feed path of the machine to a signal input of the register and a pulse generator providing a series of shift pulses co-ordinated with angular displacements of a shaft in the machine and applied to a shift input of the register to cause the sheet signal to travel through the successive stages of the register in step with incremental angular displacements of the shaft corresponding to the interval between successive shift pulses. A plurality of interrogation units is also provided each unit connected to a respective stage of the shift register and each responsive to the presence of the sheet signal in the respective stage of the register to actuate at least one of the displacement means in correspondence with the shaft attaining a respective angular disposition, and selectably operable means to cause at least one selected interrogation unit to respond when and only when, the angular disposition of the shaft differs from the respective first mentioned angular disposition by a predetermined angular shaft displacement. The shift register may comprise two interconnected register sections. The control apparatus is used to operate the machine in two modes-single side impression and perfecting impression.
Patent GB-1322285-A (GB)
Title: Method of forming a thermally-insulating casing on tubular articles
IPC: A41F9/00
Filed: 1971-11-08
Abstract: 1322285 Thermally insulating pipes ORDENA LENINA GLAVLENINGRADSTROI PRI LENGORISPOLKOME 8 Nov 1971 51805/71 Heading B5A [Also in Division F2] Tubular articles such as pipes are given a casing of thermally insulating, cellular concrete, by arranging the articles in a multiple-tier mould, filling the mould with cellular concrete at a pressure of (0À1-1À2) atm., curing or leaving to cure the concrete, and providing heat and moisture treatment in an autoclave at a pressure of saturated steam of (8-12) atm. for (12-14) hours. As described, metal pipes were positioned in a multi-tier mould; after filling the mould was left for 12 hours before undergoing 12 hours of treatment in an autoclave, and then the articles were left to cool in the autoclave for 1 hour. A number of examples are described.
Patent GB-1322484-A (GB)
Title: Device for carrying out liquid-phase chemical reactions and method  of effecting reaction in the same device
IPC: B01J10/00
Filed: 1971-01-22
Abstract: 1322484 Apparatus for two heat-exchanging reactions VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT NEFTEKHIMICHESKIKH PROTSESSOV 22 Jan 1971 3018/71 Heading B1X A reactor comprises two separated reaction chambers 1 and 2, chamber 2 being inside chamber 1 so that there is heat exchange between them. Heat produced by an exothermic reaction in one chamber can be used to provide heat for an endothermic reaction carried out in the other reactor, any further required heat exchange being provided from heating jacket 19.
Patent GB-1325744-A (GB)
Title: Electromagnetic indicators
IPC: G09F11/23
Filed: 1970-10-26
Abstract: 1325744 Dynamo-electric machines VEEDER INDUSTRIES Inc 26 Oct 1970 50677/70 Heading H2A An indicator comprises a stator 13 of ferromagnetic material, having pole pieces P1, P4 &c. on which coils are wound, and a rotor, having a magnet 5, mounted inside a drum carrying numeral marks. A vane 7, made either of soft iron or a material having an appreciable hysteresis, is asymmetrically mounted on the rotor to provide a torque on the rotor when a rotation through 180 degrees is required. In all there are five pole pieces on the stator used to define ten positions. Eeach pole piece has two positions associated with it, depending on the direction of current flow through the windings. In another embodiment ten pole pieces and coils are provided on the stator, the current flowing in one direction only through the coils.
Patent GB-1329692-A (GB)
Title: Apparatus for cleaning snow and other material from roads  pavements and other surfaces
IPC: E01H1/10
Filed: 1970-11-16
Abstract: 1329692 Snow plough blades G BROCK 16 Nov 1970 [14 Aug 1969] 40634/69 Heading E1G A rubber scraper blade for pushing or pulling over a road surface, e.g., as a snow plough, is reinforced on the rear face with integral or attached vertical buttresses. The rubber, which may be natural or artificial, is moulded or extruded to form a generally downwardly tapered section. In the embodiment of Fig. 1 horizontal channels 10 are formed in groups, the depth of the channels increasing towards the lower edge of the blade, and the buttresses being formed by the portions 12 between adjacent groups. Separate buttresses (16), Figs. 3, 4 (not shown) of harder rubber may be bolted or glued on, and the blade may be formed in sections 13 with lateral ribs 42, the sections being independently movable or interengaged. The blade support structure may comprise bars 25, 26 fixed via strip 27 and hinge 28 to a semi-circular plate 29 which can be attached at various angles to a forked arm 29a which is connected to a towing vehicle via splayed rods 31. An alternative, unhinged arrangement with straight bars is illustrated in Figs. 8, 9 (not shown).
Patent GB-1330852-A (GB)
Title: Drive arrangement for a bladed rotor
IPC: F04D25/02
Filed: 1971-12-23
Abstract: 1330852 Cooling gearing MOTOR GEAR & ENG CO Ltd 23 Dec 1971 [16 Oct 1970] 49221/70 Heading F2Q A drive arrangement for a bladed rotor 1 such as a hovercraft or hydrofoil fan or propeller comprises a hollow driven shaft 2, the axis of which is at an angle to a driving shaft 3, and bevel gears 4, 5 between the driving and driven shafts. By making the driven shaft 2 hollow, the weight of the drive arrangement is decreased and air drawn through the driven shaft 2 during the rotation of the rotor cools the shaft and gear means.