baber/WOPTO huggingface dataset:
Patent GB-1233789-A (GB)
IPC: G01N27/22
Filed: 1968-09-26
Abstract: 1,233,789. Measuring soil moisture content electrically. SIEMENS A. G. Sept. 26, 1968, (Nov.7, 1967], No.45866/68. Heading G1N. [Also in Division H1] A capacitor for testing soil moisture content comprises a porous dielectric 3, a rod electrode 1 and a helical electrode 12 disposed coaxially of the rod in a helical groove on the dielectric, which latter is a ceramic of known porosity and pore size. One or each of the electrodes has a coating (not shown) of a synthetic plastics insulating material. In use, the capacitor is brought into contact with a soil to be tested so that the dielectric absorbs water from the soil and the resultant capacitance is dependent upon the porosity and pore size of the tested soil. The capacitor may be celibrated if the porosity and pore size of the tested soil are known. The dielectric 3 can be chosen to be of similar porosity and pore size to the soil to be tested. The capacitor forms part of an A. C. measuring bridge. 5-11.
Patent GB-1239694-A (GB)
IPC: H03M11/22
Filed: 1969-08-06
Abstract: 1,239,694. Keyboards. COMPUTER TRANSCEIVER SYSTEMS Inc. 6 Aug., 1969 [6 Aug., 1968], No. 39364/69. Heading G4H. An additional key and a logic circuit is provided so that either of two different types of keyboard can be simulated. A first group of key switches K represent alphabetic characters in upper and lower case, the code signals T1- T8 (T8 is a parity bit) for the same character in upper and lower case only differing in bit T6 (and consequently T8). A second group of switches K represent, in each case, different symbols. A logic network SN performs the required bit reversals when a case shift switch is actuated, but this action may be eliminated by prior bit reversals in logic network LN when the additional key QSL is actuated. In normal typewriter keyboard simulation QSL is not operated and the effect of operating switch CSK is to change the code from lower to upper case character representation. In teleprinter keyboard simulation, QSL is actuated and the effect of operating CSK is to change the code from upper to lower case character representation, but only if one of the keys representing the same character in upper and lower case has been operated. If one of the other symbol keys has been pressed, network LN has no effect, even though QSL is actuated.
Patent GB-1250610-A (GB)
IPC: B23K35/38
Filed: 1968-01-31
Abstract: 1,250,610. Welding by fusion. BRITISH OXYGEN CO. Ltd. 15 Jan., 1969 [31 Jan., 1968], No. 5021/68. Heading B3R. To produce a weld bead which is able to wet the surfaces of adjoining members to obtain adequate adherence and which is smooth for good fatigue strength, fusion welding is effected by energy from a laser in an atmosphere of inert gas, e.g. argon or helium, and sufficient free oxygen and/or carbon dioxide to reduce the surface tension of weld metal to a value less than that which would exist in a vacuum or a pure inert gas, whilst not introducing any unwanted metallurgical reaction with the weld metal. The amounts of oxygen and carbon dioxide when present in the atmosphere are respectively not more than 10% and 20% by volume, and preferably each not less than 1% by volume.
Patent GB-1257334-A (GB)
IPC: B28B3/08
Filed: 1968-10-21
Abstract: 1,257,334. Moulding plastic substances. AUTOPACK Ltd. 21 Jan., 1970 [21 Oct., 1968], No. 49821/68. Heading B5A. Compacting apparatus for clay comprises a mould 12 carried by a main frame 11 and provided with a vertically movable bottom 13 which, in the compacting position, is supported by a sub-frame 14 depending from the main frame and carrying a ram plate 22 which acts downwardly on the clay. Fluid pressure rams 24, 25 are located between the ram plate and sub-frame and are positioned at the sides of a tube 27 connected to the ram plate at its lower end. The tube is connected at its upper end to the longer arms 29 of two toggle levers 17 pivoted on pins 19, 20 suspended from the main frame and the other ends of the pins are connected to the sub-frame. Operation of the rams 24, 25 to extend them causes the ram plate to move downwardly and the sub-frame and mould bottom to move upwardly. A frame 30 with needles 31 facilitate the removal of entrapped air in the clay. The main frame includes a circular track supporting a number of moulds brought, in turn, to the compaction station after being filled from one or more filling stations.
Patent GB-1264390-A (GB)
IPC: H03L1/02
Filed: 1969-05-27
Abstract: 1,264,390. Temperature compensation of oscillators. HITACHI Ltd. 27 May, 1969 [29 May, 1968; 17 July, 1968], No. 26827/69. Heading H3T. [Also in Division H1] In a solid state oscillator comprising a cavity resonator 2 having a movable conductive wall 7a, a solid state oscillating element 1, e.g., Gunn diode, in the cavity 3, means 5 for applying a bias voltage to the element 1 and a rod-like member 8, the movable conductive wall 7a is fixed to one end of the rod-like member 8, the other end of the rod-like member 8 is supported by the cavity resonator 2 and the oscillator frequency is compensated against temperature variation by variation in the length of the rodlike member 8 with temperature variation. Variations in frequency and output with temperature are compensated for by expansion or contraction of the rod 8, which may be of dielectric material, and which moves the wall 7a with respect to the cavity 3. This decreases or increases the inductance and capacitance of the resonator 2 to compensate for the temperature variation. The conductive wall 7a and a conductive plate 7b form a H.F. choke for preventing leakage of H.F. energy. The oscillator also includes a H.F. choke 4 and an isolating casing 10 such as copper and an output window 6. The rod 8 may be of ebonite, nylon, copper, aluminium or other specified materials, and the cavity resonator 2 and extension 9 may be of copper or "Invar" (Trade Mark). The tuning of oscillator may be adjusted by a screw connection (11, Fig. 5, not shown), such as a micrometer type, of the rod 8 to the cavity resonator 2. The H.F. choke formed by 7a, 7b can be modified (Fig. 6, not shown) by replacing plate 7b by the end wall (12) of the extension 9, the thickness of the wall 7a being #/4 and spaced #/4 from the end wall (12).
Patent GB-1266122-A (GB)
IPC: B01F7/02
Filed: 1970-04-01
Abstract: 1,266,122. Mixing apparatus. BUSS A.G. 1 April, 1970 [2 April, 1969; 5 Feb., 1970], No. 15333/70. Heading B1C. Mixing machine has a casing containing a shaft 6 carrying blades 10, and the shaft is rotated and resiprocated, the speeds of rotation and reciprocation being independently variable. The shaft 6 is connected to a further shaft 21 which is rotated by a motor 22 acting through gears 23, 24, and is reciprocated by a piston 35 mounted between thrust bearings 37 which allow the shaft to rotate relative to the piston. Movement of the piston 35 is controlled by a valve 31 through which pressure fluid is fed from a pump 33. The valve is controlled by a rotary cam 29 and a central secondary valve spindle conected to a pivoted link 41 limits the range of movement of the piston 35 by blocking fluid flow through the valve 31 when the limit is reached. The cam 29 and pump 33 are both driven by a motor 27. In another embodiment (Fig. 5, not shown) the shaft projects through the rotary drive motor (109) to a piston (115) which reciprocates the shaft. The motor therefore reciprocates with the shaft, the torque reaction being taken by a pivoted arm. The casing has internal projections 5, which may incorporate inlet passages, and a restriction 11 through which material is forced into a de-gassing chamber 13 with a gas outlet 20 connected to a source of vacuum. The material is ejected at 4. The casing has a material inlet 2 leading to a screw 8, and an additive inlet 19 connected to a proportioning pump 18. In the other embodiment (Fig. 5, not shown) the mixing vanes are coplanar, and the machine is operated slightly more than half full, so that the shaft may be reciprocated in one direction with the vanes horizontal and all submerged, and in the other direction with the vanes vertical, and only half of them submerged, thus giving a resultant flow towards the outlet end. The forward and return strokes may be at different speeds. The shaft may be hollow, as at 16, 17, Fig. 1, for heating fluid.
Patent GB-1266151-A (GB)
IPC: G03G13/28
Filed: 1968-04-26
Abstract: 1,266,151. Electrophotographic element. AGFA-GEVAERT. 21 April, 1969 [26 April, 1968], No. 19888/68. Heading H1K. [Also in Division G2] In a method of making a planographic printing master electrophotographically wherein the portions of a recording layer not covered by developer are rendered hydrophilic, the recording layer comprises a conductive support and a photoconductive layer including a binding agent having dispersed therein a mixture of particles of up to 10 Á of from 95-50 wt. per cent of zinc oxide and from 5 to 50 wt. per cent of crystalline cadmium sulphide or mixed cadmium selenide-sulphide. CdS doped with ZnS and traces of Mn, Cu, Ca or Cd, or containing BaSO 4 , SiO 2  and traces of Zn and Se may be used. The resin is preferably hydrophobic and may be a silicone or alkyd resin or a copolymer of vinyl chloride, ethylene, and vinyl sulphonyl chloride. Sensitizing dyestuffs may be added. The conductive support may be a plate of Al, Zn, Cu, Fe, Sn or Pb, a layer formed from gelatine or casein having carbon black, metal particles or hygroscopic salts dispersed therein, a vacuum deposited layer of Ag or Al on an insulating support, a glassine paper sheet or a conductive polymer layer.
Patent GB-1288342-A (GB)
IPC: H01R43/01
Filed: 1971-01-12
Abstract: 1288342 An insertion tool for clip type terminals RELIABLE ELECTRIC CO 12 Jan 1971 1369/71 Heading B4W An insertion tool 10 for clip type terminals 33 comprises a body portion 12 and a backing plate 13 assembled together to form a recess 15 therebetween at one end, the body portion and the backing plate having a notch 23 in said one end and there being a blade 18 pivotally mounted on surface 42 of the body portion. The blade is normally biased by a spring (21), Fig. 2 (not shown), to a position shown in Fig. 1 but is movable by arm 41 to co-operate with anvil 20 to cut a wire positioned in the notches 23. Body portion 12 of the tool is received in a plastics handle 11 which has a recess 28 to accommodate arm 41. In operation an insulated wire 38 is positioned in notches 23 and the tool is then itself positioned to accommodate clip 33 in recess 15, wire 28 being located in notch 36 of the clip. Pressure is then applied to the tool to push the wire into slot 37 in the clip. Blade 18 is then used to cut off the free end portion of the wire. The cutting edge of the blade is offset from the surface 42. The tool is preferably made of stainless steel.
Patent GB-1289619-A (GB)
IPC: B27M1/00
Filed: 1970-02-25
Abstract: 1289619 Shaping wood J R CLAYTON 19 April 1971 [25 Feb 1970] 8987/70 Heading B5L A method of forming a scalloped surface on wood comprises feeding the wood past a cutter and oscillating the wood in a direction normal to its feed direction and towards and away from the cutter by a cam located in advance of the cutter with regard to the feed direction. In an apparatus for performing the method a piece of wood 2 is fed via a roller 12 to the nip between a knurled, eccentrically mounted, roller 6 and one of a pair of spring urged driven rollers 5. The rollers 5 press the wood against a guide surface 3 and against the roller 6 to rotate the latter and so cause the wood to oscillate toward and away from a rotary cutter 7. In alternative constructions the eccentric roller is driven and the wood pressed thereagainst by a spring-loaded jockey roller or by hand, or the wood is fed by hand past a non- driven eccentric roller.  The wood may be passed through the machine more than once to produce superimposed scallops. In a preferred method the cutter is less than the width of the wood and the wood is fed past the cutter twice to form a series of scallops adjacent each of its two opposite long edges, the series being staggered. The cutter may be a fixed blade.
Patent GB-1290995-A (GB)
IPC: B60C27/00
Filed: 1971-04-19
Abstract: 1290995 Wheel tyres H O DOHMEIER 19 April 1971 [2 March 1970] 23297/71 Heading B7C In order to prevent excessive damage to a heavy duty tyre by rocks and the like, the tyre is provided with a network 2 of metal armouring elements embedded in the outer tread portion 3 such that the outer surface of the elements is substantially flush with the surface of the tyre. The network, which may form a steel chain, may be adhesively secured or bonded to the resilient material of the tyre and may form the tread pattern 4 on the surface of the tyre. Separate side wall armouring which may be embedded in the side walls of the tyre may be attached to the edges of the network embedded in the tread portion. In manufacture the network 2 may be embedded in the tyre by sandwiching it between two or more layers of uncured rubber and submitting the tyre to a pressure rolling- operation followed by a curing operation. The network may be embedded into an underlay or overlay of rubber only or uncured rubber block may be placed between the elements instead of a complete overlay. The elements may be embedded either during the manufacture of a new tyre or during a retreading process.
Patent GB-1294890-A (GB)
IPC: C08C19/44
Filed: 1969-12-05
Abstract: 1294890 Producing end-functional groups on diene polymer VSESOJUZNY NAUCHNOISSLEDOVATELSKY INSTITUT SINTETICHESKOGO KAUCHUKA IMENI AKADEMIKA S V LEBEDEVA 5 Dec 1969 59415/69 Heading C3P A conjugated diene polymer containing organometallic groups at the chain ends, each group including a Group II or III metal and optionally also a Group I metal, but no transition metal, are reacted with an alkylene oxide, carbon dioxide, oxygen, sulphur or epichlorhydrin to introduce end-functional groups, i.e. hydroxyl, carboxy, hydroxyl, thiol and epoxy groups respectively. In examples the starting material is LiAl(i-C 4 H 9 ) 3 (C 4 H 6 ) n  (i-C 4 - H 9 ) 3 AlLi, the analogous isoprene polymer, (i - C 4 H 9 ) 2 Al(C 5 H 8 ) n Al(i - C 4 H 9 ) 2 , LiAl(O - i- C 4 H 9 ) (i - C 4 H 9 ) 2 (C 5 H 8 ) n (i - C 4 H 9 ) 2 (O - i - C 4 H 9 )- AlLi, LiAl[N(C 2 H 5 ) 2 ] (i - C 4 H 9 ) 2 (C 5 H 8 ) n  (i - C 4 - H 9 ) 2  [N(C 2 H 5 ) 2 ]AlLi, and LiAlH(i-C 4 H 9 ) 2 (C 5 - H 8 ) n  (i-C 4 H 9 ) 2  HAlLi.
Patent GB-1311058-A (GB)
Title: Fluid sealing devices
IPC: F16J15/00
Filed: 1971-12-14
Abstract: 1311058 Seals WARWICK PUMP & ENG CO Ltd 14 Dec 1971 58039/71 Heading F2B A sealing device for rotary or reciprocating pumps comprises a main seal 2, 3, 4, an auxiliary seal 5 spaced from, and on the high pressure side of, the main seal, and a filter 6 for filtering the pump fluid before it reaches the main seal. As shown for a rotary pump, the main seal 2, 3, 4 is an end-face seal, the auxiliary seal 5 is a resilient scraper ring and the filter is in a by-pass pipe 7. For a reciprocating pump, Fig. 1 (not shown), the main seal is a stuffing box having a resilient packing (3) compressed by a gland nut (4) and washer (5) and the auxiliary seal (6) is a scraper ring made of porous filtering material, the by-pass in this embodiment being omitted.
Patent GB-1311223-A (GB)
Title: Heating yarns
IPC: D02J13/00
Filed: 1971-05-24
Abstract: 1311223 Yarn heater MITSUBISHI JUKOGYO KK 24 May 1971 [25 May 1970] 16742/71 Heading D1F A yarn heater comprises a tube through which a yarn is passed and which extends through a heating chamber containing a steam passage and a pipe connecting the passage to the tube's interior. As shown, yarn 23 is passed through tube 13 which is surrounded by a chamber 12 containing a steam passage 18 and a connecting pipe 19. Chamber 12 is filled with the vapour of medium 14 heated by electric heater 15. The heater 15 is controlled according to the chamber's pressure or the tube's inner temperature. The yarn heater may include a plurality of chambers 12 interconnected by vessel 16 and by pipe 17 which forms a part of each chamber.
Patent GB-1311696-A (GB)
Title: Signalling devices
IPC: H01H3/02
Filed: 1970-10-02
Abstract: 1311696 Switch cases; retractive switches R J REID 29 Oct 1971 [2 Oct 1970] 46859/70 Heading H1N A signalling device for a fire alarm system comprises a microswitch 4, the actuating button 5 of which is held depressed by a strip of frangible material 7, e.g. glass, the switch closing only when the strip is broken. A removable transparent plastics cover 12 having a flexible circular region 16, centred about the middle of the strip is retained on the case 1 by flange 13 and groove and tongue 15, 14. When the strip is fractured the broken pieces are retained within the cover. Alternatively the cover itself may be adapted to form the frangible member.
Patent GB-1329699-A (GB)
Title: Liquid flow meters
IPC: G01F11/02
Filed: 1970-11-16
Abstract: 1329699 Dispensing measured quantities of liquids J F EARDLEY Ltd 16 Nov 1970 [3 Dec 1969] 59115/69 Heading B8N [Also in Division G4] A liquid, e.g. beer, dispensing apparatus of the type comprising an element, e.g. a piston or a flexible diaphragm, movable in a chamber to discharge liquid from either side of the element in response to liquid entering on the other side of the element, includes a control unit arranged to reverse valves controlling the flow of liquid to and from the chamber at the end of each stroke of the element, the control unit operating in response to "no flow" detected by a flow detector and a pressure drop detected by a liquid pressure detector. The control unit also actuates a counter to record the number of strokes of the element. When the illustrated apparatus is in operation, with the valves 30, 32 initially open and valves 28, 34 initially closed, opening of tap 66 will cause a pressure reduction in the discharge outlet which will be sensed by liquid pressure detector switch 70 which thus closes to operate electric contact arrangement 74. A motor driven pump 62 is thereby actuated and liquid is supplied to one side of the piston 44 and exhausted from the other side via conduit 24, valve 32 and outlet 20. Plunger 52 of the flow detector will then be moved to its upper position to open reed switch 58, and operate electric contact arrangements 76. When flow ceases, and provided tap 66 remains open so that switch 70 remains closed, closing of reed switch 58 by the plunger falling under gravity will operate the arrangement 76 so that a time delay circuit 78 will be operated, and will, after a delay, actuate a change over device 80 to effect change over of the state of each of the valves. The counter 82 is also actuated upon each actuation of the change over device to count the number of volumes dispensed. Supply of liquid will continue until tap 66 is closed.  The valves 28, 30, 32, and 34 are located in, and various conduits including the supply and discharge conduits are drilled in, a transparent block 16.  The apparatus may alternatively include a continuously acting pump in which case a relief valve will be included in the liquid supply; or a source of liquid maintained under pressure by a gaseous medium or a pressure head. Two three-way valves could be used instead of the illustrated arrangement. The fluid flow detector could be located anywhere in the fluid circuit, and instead of its plunger 52 being biased by gravity, it may be spring biased to a rest position. Instead of a separate electrically operated time delay circuit 78, a time delay arrangement may be incorporated in the change over device 80, in the flow detector or in the pressure detector. A pair of pressure detectors may be employed, one acting without delay to start motor when tap is opened and a second one acting after a delay to establish a connection to the changeover device.
Patent GB-1330642-A (GB)
Title: Fluid filter
IPC: B01D29/00
Filed: 1970-09-17
Abstract: 1330642 Demountable filter cartridge W & R BALSTON Ltd 17 Sept 1970 [17 June 1969] 2972/73 Divided out of 1330641 Headings BID and BIT The description largely corresponds to that of Specification 1330641, but the claims concern a semi-rigid filter tube of resin-impregnated, non-woven fibres which crushes at the end regions only when subjected to axial compression so as to make self-seals against the end fittings of the perforate support.
Patent GB-1331128-A (GB)
Title: Method of and a machine for forming and filling trays with articles
IPC: B65B5/02
Filed: 1971-08-20
Abstract: 1331128 Packaging machines H W WALLACE & CO Ltd 10 Aug 1972 [20 Aug 1971] 39170/71 Heading B8C In an apparatus for erecting a tray blank around a group of cans, the blank and the cans are moved either horizontally or vertically upwards through a die which erects the tray walls. As shown, cans 1 roll down plates 2 on to plates 3 which are pivoted at 4 and which in their lower positions align groups of cans 1 with the mouths of two dies, represented by rectangles 6 and 7, and block the supply of further cans 1 from the plates 2. Spaced strips 8 on the plates 3 control the grouping of the cans. Pistons 9 then engage each group of cans 1 and push it horizontally into a tapered rectangular channel. Upon continued horizontal movement, the cans engage the base panel of a tray blank (U.K. patent Specification 1,221,928 referred to) which is held in a slot 11, and then move with the blank through the die which includes members 14 and resiliently mounted pressure wheels 15 to fold the corners of the tray. Each corner of the tray blank has fold lines 26, 27 and a slot 31, and is folded (Figs. 7a-7e) by one of the members 14 and one of the pressure wheels 15 into a dog-eared fold (32, Fig. 7e) which extends inwardly of the tray and is adhered by self-adhesive previously applied to the blank. The loaded tray is delivered on to a platform 16 and against bars 18 and turned to its upright position by pivoting the platform and bars about 17.
Patent GB-1331743-A (GB)
Title: Work holding device for machine tool
IPC: B23Q3/12
Filed: 1969-10-15
Abstract: 1331743 Chucks ALFRED HERBERT Ltd 5 Oct 1970 [15 Oct 1969] 50583/69 Heading B3B A work-holding device comprises a body 10, locating means on the body for locating the body co-axially with a machine-tool spindle, coupling means on the body for engagement with means on the spindle for urging the locating means into interengagement with complementary locating means on the spindle, and means rotatably mounted on the body and drivingly connected with the coupling means for actuating the coupling means. The locating means comprises a ring 23 formed with gear teeth 24 which form an internal bevel gear with a re-entrant pitch cone. The teeth 24 are arranged to engage complementary locating means in the form of a bevel gear fixed coaxially on the spindle 31 of a machine-tool. The coupling means is formed by a screwthreaded portion 25 rotatably engaged on ring 23. The portion 25 has gear teeth 26 meshing with the teeth of three spur gears 27. Each of the latter has a recess 28 for reception of a tool 33 for rotating the spur gears and hence the portion 25. During such rotation, the portion 25 cooperates with a screw-threaded portion 32 on the spindle 31 whereby the locating means can be drawn into interengagement. Thd chuck has work-gripping jaws 29 (Fig. 2) whose radial positions are adjustable relative to respective slide members 12; each of the latter has a Tee-slot 13 in which a bolt 30 is positioned. Complementary serrations 14 on the slide members and jaws secure the latter to the slide members to prevent slippage. Opening and closing of the jaws is by action of a rotary disc 17 formed with a cam portion 18 which runs in an arcuate recess 16 in each slide member 12. The disc 17 is rotatable by any one of three spur gears 21 each of which has a recess 22 for reception of tool 33. Tool 33 may be part of the machine-tool or may be a separate item; it may be manually or automatically rotated.