baber/WOPTO huggingface dataset:
Patent GB-1288167-A (GB)
IPC: F28D17/00
Filed: 1970-02-25
Abstract: 1288167 Thermal regenerators; steam generators KUREHA KAGAKLI KOGYO KK and MITSUBISHI TYUKO GYO KK 25 Feb 1970 9081/70 Headings F4A and F4K In a heat exchange system comprising cyclically operable regenerative heat-exchanger units 1, 1a heated by exhaust gas from combustion means 2, 2a and to which process fluid to be heated, e.g. steam, is fed by way of a supply line 11 having an automatic flow rate controlling valve 10, the pressure difference between the interiors of the units 1, 1a is sensed by a detector 18 and the pressures accordingly equalized immediately prior to a cyclic changeover operation taking place by the introduction to one of the units of steam through line 13 thereby ensuring a continuous output of heated process fluid at a constant flow rate and pressure. The line 13 is connected to the steam line 11 upstream of the flow rate controlling valve 10 and includes valves 15 15a to cyclically supply the equalizing steam to the respective units 1, la. Each regenerative unit includes a heat accumulating device. Exhaust gas after leaving either of the units passes to a stack 9 by way of a line 8 or 8a.
Patent GB-1290237-A (GB)
IPC: D03D47/00
Filed: 1970-05-28
Abstract: 1290237 Weft inserters VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT TEXTILNOGO I LEGKOGO MASHINOSTROENIA 28 May 1970 25684/70 Heading D1E A weft receiving suction device of a rapier loom comprises a suction tube 1 the end 2 of which is connected to an injection pump 11.. 13 operated by compressed air supplied through an inlet 7 to a slit 14 surrounding a nozzle 11, the air escaping and atmosphere through a bushing 12. The tube is reciprocated by hollow connecting rods 5, 6, connected to a rotating shaft 8, the compressed air supplied through a hose 9 flowing through the bores of shaft 8 and rods 5, 6. As tube 1 reciprocates, into and out of the shed 4, a weft 3 presented thereto is picked up by the suction in tube  and drawn through the shed. (For Figures see next column)
Patent GB-1294864-A (GB)
IPC: B21C23/32
Filed: 1969-12-08
Abstract: 1294864 Extruding CEFILAC (Compagnie Du Filage Des Metaux Et Des Joints Corty) 8 Dec 1969 [10 Dec 1968] 59861/69 Heading B3P In a hot extrusion process a disc of lubricant 4 surrounded by an elastic ring 8 is placed on the die holder 2 before the holder is moved into line with the extrusion container 1. The die holder 2 is shaped with a substantially cylindrical or tapered bore, section 7 and a conical section 6. The die 3 is cleaned outside the press axis, loaded into the holder 2 and the disc and ring assembly positioned against the die. The elasticity of the ring holds the disc in the holder. The disc may be apertured to correspond to complex die apertures. The disc may be made of agglomerated glass powder and the ring made of rubber. The die aperture is L-shaped in the embodiment. It is stated that it is known to hold discs in die holders magnetically.
Patent GB-1296628-A (GB)
IPC: A47J37/04
Filed: 1971-07-01
Abstract: 1296628 Grills R C WOOD 1 July 1971 30861/71 Heading A4D  A grill for steak includes two parallel heater elements 7 which are spaced apart, one on each side of an axis 6 about which they are rotatable, and a removable holder 10 which holds a steak S and may be located between the heater elements 7 and rotated therewith. The heater elements 7, which are preferably electric, are mounted within a housing 5 which is rotatably mounted on a support 16. The housing 5 comprises endplates 17 and 20 spaced apart by rods 21, and a cover 23, and is secured by bolts 25 to a heatinsulating member 26. Member 26 is attached to a flange 29 of an arbor 28, and rotation of the arbor 28, and thus of housing 5 with the elements 7, may be achieved by a motor (30), Fig.3 (not shown) driving the end (31) of the arbor 28. The holder 10 may be inserted into housing 5 through an elongated opening 22 in the end-wall 20. The holder 10 comprises two flat grids 36 and 37 hingedly connected by flexible brackets 39. Associated with brackets 39 is a shaft 42 which may be inserted through a housing 18 in the endwall 17, and through an opening in member 26, to engage non-rotatably with the arbor 28. Shaft 42 may have an extension (43), Fig. 2 (not shown) of polygonal cross-section. The two ends of each heater element 7 are electrically connected to slip rings 32 mounted on the arbor 28 and insulated therefrom by insulating rings 33. An electric voltage may be applied to both the heater elements 7 through brushes 45 which contact the slip rings 32. Non-electrical heater elements 7 may alternatively be used.
Patent GB-1301854-A (GB)
IPC: F16K1/22
Filed: 1969-04-29
Abstract: 1301854 Valves MASHEDER DESIGN STUDIES Ltd 4 May 1970 [29 April 1969] 21783/69 Heading F2V A butterfly valve comprises a frustoconical valve seat S and a circular closure member D rotatable about trunnions whose axis of rotation A is displaced from a diameter of the member D parallel to the axis A, said displacement being both in the planar direction of the closure member D and at right angles to the plane by distances M, and said axis being located upstream of the valve seat S by a distance L permitting full peripheral engagement of the seat by the closure member D when in its closed position. The closure member D may have a frusto-conical face, or a planar face giving a line contact with the seat S.
Patent GB-1302374-A (GB)
IPC: C07C47/542
Filed: 1969-07-15
Abstract: 1302374 Aldehyde condensation products IMPERIAL CHEMICAL INDUSTRIES Ltd 22 June 1970 [15 July 1969] 35557/69 Heading C2C Condensation products are obtained by reacting, in the liquid phase, at least one aldehyde having four carbon atoms in the molecule in the presence of a catalytic amount of a compound, soluble in the aldehyde, of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zr, Mo, Cd, Sn or W. Suitable compounds include carboxylates, complexes, alkoxides and inorganic polyacid salts. The catalyst may be recycled in a continuous process. The aldols initially formed may undergo further reaction. Examples prepare 2-ethylhexenal and monobutyrates of 2-ethyl-hexane-1,3-diol from n-butyraldehyde; 2-ethylhexenal and 2-ethylisohexenal from a mixture of n- and isobutyraldehydes; 2,4,6 - tri - isopropyl - 1,3,5- trioxane from isobutyraldehyde; monoisobutyrates of 2,2,4-trimethylpentan-1,3-diol from isobutyraldehyde; o- and p-tolualdehydes from crotonaldehyde; and a mixture containing butyric acid, 2-ethylhexanol, n-octanol, ptolualdehyde, p-methylbenzyl alcohol, hexahydro o- and p-methylbenzyl alcohols by hydrogenation of condensation products of crotonaldehyde.
Patent GB-1306497-A (GB)
Title: Towing couplings
IPC: B60T7/20
Filed: 1971-07-22
Abstract: 1306497 Vehicle couplings H S BRADLEY and K BRADLEY 22 July 1971 34405/71 Heading B7T [Also in Division F2] A towing coupling comprises a draw-bar 50, adapted to be connected to a towing vehicle, slidable in a housing 4 adapted to be coupled with a trailer, the sliding movement between the bar 50 and the housing being controlled by a damper 7 with relative inward movement transmitted via a member 6, fixed to the bar 50, and levers 22 to an over-run brake operating rod 54, there being further provided means to prevent actuation of the over-run brake comprising a first member 15 mounted on a rod 16 and connected by a spring 26 to a second member 29, such that when the member 15 is in the position shown the spring 26 urges member 29 against stop 28 out of the path of member 6, but when member 15 is moved forward to occupy the opposite end of slot 58, the spring 26 urges the member 29 upwardly into the path of member 6 and prevents the inward relative movement of the bar 50 and housing 4 and hence the operation of the over-run brake. A hand operable parking brake 8 is connected to act on brake rod 54 via a link 20 and may be held in a set position by a pawl and ratchet mechanism 14.
Patent GB-1307977-A (GB)
Title: Lawn edge trimmers
IPC: A01G3/06
Filed: 1969-02-22
Abstract: 1307977 Lawn edge trimmers WEBB LAWNMOWERS Ltd and S A STEWART 22 May 1970 [22 Feb 1969] 9668/69 Heading A1F A lawn edge trimmer comprises a radial cutter 15 rotatable about a substantially horizontal axis, preferably a reversible electric motor 12, a battery 55, ground engaging roller means 31 which, in use, is the sole means of ground support for the trimmer and is rotatable about a single axis substantially parallel to but spaced from the axis of the cutter, and a preferably telescopic handle 16 which includes a hand grip part 18 and which, at least in use, is fixed relative to the axes, the arrangement being such that the cutter axis can be raised or lowered by raising and lowering hand grip part 18. The handle 16 may be secured to a housing 11 which comprises two parts 44, 45 of plastics material hinged together at the rear, allowing access to the battery and motor. Guide plate 10a provides two V-shaped recesses 10b to guide grass to the cutter if the trimmer is moved forwards or backwards. The cutter may be scimitar shaped and the roller frusto-conical. The trimmer has an electrical operating switch 60, 62 which can be locked in the "on" position but is normally urged to the "off" position and may also include a plug and socket connector for connection to an external source of electricity for battery charging, a "state-of-charge" indicating means e.g. a bulb and a fan impeller for ejecting grass cuttings. The impeller may be provided by the cutter blades formed into a suitable shape or by a separate component. Means for collecting grass may also be provided.
Patent GB-1312245-A (GB)
Title: Aircraft ground steering apparatus
IPC: B60V1/14
Filed: 1969-03-28
Abstract: 1312245 Steering mechanisms BRITISH AIRCRAFT CORP Ltd 24 June 1970 [28 March 1969] 16447/69 Heading B7H The steering shaft 12 of an aircraft nose wheel is driven, via a worm gear 8 and wheel 10, by air motors 4 which are actuated by air valves 5 controlled by an output shaft 15, rotation of the shaft 12 being fed back to shaft 15 through gearing to cause closure of the valves 5 when the wheel approaches the desired position. The steering and output shafts are coaxial and carry a ring gear 14 and sun gear 16 respectively both of which mesh with planet gears 20 carried by an input shaft 18. The input shaft is rotated by a cable 22 and pulley 21 and rotation of the sun gear and shaft 15 results causing linkages 17, 7, 6 to actuate the valves 5 and motors 4 which drive the worm gear. On rotation of the steering shaft, and with shaft 18 fixed, the sun gear is caused to rotate in the opposite direction thus closing the valves. The worm gear may be hour-glass shaped and have a helix angle of 25 degrees; the worm wheel teeth are concave in axial cross-section so that they partially embrace the gear 8.
Patent GB-1312799-A (GB)
Title: Lung ventilators
IPC: A61M16/00
Filed: 1970-10-20
Abstract: 1312799 Lung ventilators BRITISH OXYGEN CO Ltd 20 Jan 1972 [20 Oct 1970] 49847/70 Heading A5T A lung ventilator includes a timer 40 adapted to be put in a condition to switch the lung ventilator from an expiratory mode to an inspiratory mode before the expiratory gas flowrate has dropped to a chosen level, the operation of the timer being inhibited until signals from an expiratory flow sensor 26 indicate that the expiratory flow-rate has reached the chosen level. The ventilator includes' a mixer 2, a pattern generator 4, a flow control device 6, and a valve 8 which is biased open during the inspiratory phase and which is controlled by a control device 10. An input sensor 12 produces an electrical pulse each time a unit volume of gas passes through the sensor and the train of pulses is transmitted to an integrator 14. An analyser 18 checks the efficiency of the mixer 2, and beyond the analyser the gas is supplied to the patient through an airway 20. Expiratory gas passes along an exhaust line 22 and through a sensor 26 which transmits pulses to a second integrator 27 and to a gate 48. Gas leaving the sensor 26 passes through a valve 28 which is controlled by the gas pressure in a control line 30 bled off from the airway 20. A comparator 36 receives a signal from the integrator 14 and from a preset standard volume signal-generator 38, and when the measured volume of gas passing through the sensor 12 is equal to the preset volume set by the generator 38 the control device 10 is actuated to close valves 8 and 34 to switch the ventilator to the expiratory mode. Closure of the valve 34 also triggers the timer 40 via a pressure switch 39 to transmit a signal resetting the comparator 36 when a chosen time interval has elapsed. Triggering of the timer 40 causes a constant input voltage to be applied through a resistor to a capacitor forming part of the timer. The gate 48 which is located in the line connecting the timer 40 and the comparator 36 prevents transmission of the resetting signal until the pulse train from the sensor 26 indicates that the chosen expiratory flow-rate has been achieved. The integrator 27 is connected to an alarm 44 which is actuated when the patient ceases to breathe or the supply of gas falls excessively.
Patent GB-1315841-A (GB)
Title: Press safety devices
IPC: F16P3/12
Filed: 1970-04-22
Abstract: 1315841 Machinery safety devices MASTERGUARD CO Ltd 21 July 1971 [22 April 1970] 19358/70 Heading F2J In a safety device for a pneumatically, or hydraulically, operated laundry press wherein the clothes pressing area is completely surrounded by a plastics-coated mesh guard 4 vertically slidably carried by cross-bars 3 on studs 2 of a fixed frame 1 and lightly downwardly urged into its closed position by weak springs on the studs 2, the guard cross-bars 3 have projections 6 engaging a pair of linked bleed valves 5 which control a main valve 7 connected between the fluid pressure supply 8 and the power operating cylinder of the press ram 9 whereby opening movement of the guard during operation of the press operates the bleed valves 5 to exhaust a control chamber 12 of the main valve 7 which is then downwardly spring urged to close the fluid pressure supply 8 and exhaust at 10 the press ram cylinder 9 whereby the press ram is spring returned to its upper inoperative position. When the guard is again closed the main valve 7 may again be opened by a button operated valve 13 which allows high pressure fluid to re-charge the chamber 12 of the main valve 7 to overcome the return, i.e. closing spring of the main valve 7 which is thus raised to again connect the fluid pressure supply 8 to the press ram 9 for operation thereof.
Patent GB-1322830-A (GB)
Title: Fifth wheel for connecting a trailer to a tractor
IPC: B62D53/08
Filed: 1971-11-23
Abstract: 1322830 Operating arm for fifth wheel J P K FONTAINE 23 Nov 1971 54381/71 Heading B7T A fifth wheel having a jaw 14 and wedge 16 for securing a king-pin K is provided with a platelike operating arm 23 detachably pivoted at 49 and having two open-sided slots 33 and 37 with tongues 36 and 39 for engaging depending pins 28 and 29 of the wedge and jaw respectively and moving same to an uncoupling position on pulling an operating handle 52, the slots 33 and 37 being configured and relatively dimensioned so that the wedge is moved first. A bumper 19 having a detent 19a is pivoted to the arm to hold the parts in the uncoupled position but on insertion of the king pin the bumper is released and the parts automatically return to the coupling position under springs 17, 18 and 24. The arm 23 is provided in the area of the slots 33, 37 with a reinforcing bottom plate 41 which also serves to prevent the pins 28 and 29 from falling out. The arm travels in slots 42 and 44 in braces of the frame of the fifth wheel.
Patent GB-1327860-A (GB)
Title: Rust inhibitors comprising lithium salts
IPC: C10M129/34
Filed: 1971-07-28
Abstract: 1327860 Lubricant compositions ESSO RESEARCH & ENG CO 28 July 1971 35497/71 Heading C5F Lubricating oils may contain a mixture of a lithium salt of a C 9 -C 30  aliphatic-hydrocarbonsubstituted succinic acid or anhydride and a C 5 -C 30  alkyl-phenol. The mixture is prepared by heating the salt and phenol to a temperature above the melting point of the salt. The salt, acid or anhydride may be treated with sulphur with or without the presence of a phosphorus sulphide at any stage. The lubricating oil may be mineral or synthetic, e.g. di-2-ethylhexyl sebacate, carbonate esters, phosphate esters, halogenated hydrocarbons, silicones, polyglycols, diesters of tetraethylene glycol and complex esters. Conventional additives (unspecified) may also be present.
Patent GB-1330832-A (GB)
Title: Rollertype painting device
IPC: B05C17/035
Filed: 1969-10-07
Abstract: 1330832 Paint rollers BLYWORTH Ltd 6 Oct 1970 [7 Oct 1969 49233/69 Heading B2L A paint applicator comprises a roller 10 with a foamed plastics cover rotatably mounted on a paint trough 15 and a transfer means 21 comprising a roller having a wire mesh surface mounted in a loop 27 of a lever 28 the lever in turn being pivotable in the wall of the trough by a handle 31 in order that the transfer means can be brought into contact with the roller 10. The transfer means may be supported at its centre or its ends by the lever 28 and may comprise one or two sections.
Patent GB-1331857-A (GB)
Title: Surgical devices for stripping varicose veins
IPC: A61B17/00
Filed: 1971-06-04
Abstract: 1331857 Surgical device ARMOUR PHARMACEUTICAL CO Ltd 4 June 1971 19085/71 Heading A5R An olive for use in a surgical device for stripping varicose, veins comprises a domeshaped nylon member 10 which has with a slot (15) Figure 1 (not shown) extending radially from an axial hole 16 and is attached by a hinge 12 to a cylindrical member 11 with a passageway 18 along its axis. The two members 10 and 11 are fastened by a projection 19 on the dome-shaped member 10 which fits into a complementary depression 21 in an end portion 21 of the cylindrical member. The other end portion 25 of the cylindrical member 11 is incurved to aid the stripping process. In use, a wire with a stop at one end is passed through the passageway 18 and laid in the slot 15; the two members are fastened together and the wire pulled taught so that the stop becomes positioned in the hole 16.
Patent GB-1335304-A (GB)
Title: Packaging method and apparatus
IPC: B60S1/32
Filed: 1971-10-28
Abstract: 1335304 Packaging BRITISH VISQUEEN Ltd 9 Oct 1972 [28 Oct 1971] 50131/71 Heading B8C Articles such as cartons 1 are enclosed in a plastics-film wrapper 2 including a tear-tape 3 heat-sealed along each edge to the wrapper by bead-seals 4 such that the wrapper will tear along seals 4 when a peeling force is applied to end 6 of the tape. The tape may be sealed to the wrapper before or during packaging. Apparatus for wrapping the articles includes tear-tape web 13 joined at 16 to wrapping web 15 arranged in a curtain into which an article 9 is pushed to drag the combined webs from respective reels 12, 14 and encompass the article. Tear tape web 13 is supplied at a speed not exceeding one quarter that of the wrapping web 15, such that when sealing and severing jaws 17, 18 operate, a second seal 16 is formed adjacent the first to define a narrow tear-tape. Conveyer 10 takes the open-ended package into shrinking oven 11.
Patent GB-1337929-A (GB)
Title: Thermistors
IPC: H01C1/14
Filed: 1972-05-04
Abstract: 1337929 Thermistors STANDARD TELEPHONES & CABLES Ltd 4 May 1972 20836/72 Heading H1K A thermistor made of a mixture of NiO and Mn 3 O 4  thermally sintered comprises plural sets of interdigitated parallel plate electrodes 2, 3, interposed in the body of material 1 and alter. nately extending from opposed side faces covered with interconnecting layers 4 to which leads 5 are soldered (Figs, 1, 3). In fabrication a paste of thermistor material and an organic binder is screen printed on a smooth unabsorbent carrier, on which a metallization layer of Pt, Au-Pt, Pd or Pt-Pd is printed to define plural first electrodes (Fig. 6, not shown). A second thermistor material layer is printed on followed by a further plurality of printed electrodes interdigitated with the first (Fig. 7, not shown), and the process is repeated until a thermistor of the required size is built up, which is then diced into a plurality of chip units each with two interdigitated sets of electrodes. After thermal sintering the opposed edges to which the alternate electrodes extend are coated with a suitable noble metal to which leads are soldered.
Patent GB-1339270-A (GB)
Title: Machine for laying sheet material on a soil bed
IPC: A01G13/02
Filed: 1970-12-31
Abstract: 1339270 Laying sheet material on soil beds ALVAN BLANCH DEVELOPMENT CO Ltd 30 March 1972 [31 Dec 1970] 61956/70 Headings AID and A1E A machine for laying sheet material such as polyethylene on a soil bed comprises a support frame mounted on ground wheels 7 on tracks, a supply drum 9 for the sheet material 11, rollers 12 for pushing the edges of the sheet material 11 into the furrows formed by front plough members 8, and rear plough members 13 to return soil to the furrows and thus secure the sheet material; rear rollers may be provided to consolidate the soil thus returned. The ground wheels 7 may be adjustable in height, the rollers 12 and rear rollers in height and spacing, and the plough members 8 and 13 in height, spacing, and orientation. Means may be provided for cutting a laid length of sheet material 11 and for cutting holes in it to receive plants. The machine may be self-propelled or be attachable to the lift mechanism of a tractor. Alternatively the sheet material may be carried in folded form, and it may be preformed with holes.
Patent GB-1340009-A (GB)
Title: Method of converting heat energy to mechanical energy  employing an aqueous nitrogen containing motive fluid
IPC: F01K25/06
Filed: 1971-12-15
Abstract: 1340009 Vapour power plant UNION CARBIDE CORP 15 Dec 1971 58147/71 Heading F1Q A method of converting heat energy to mechanical energy comprises heating a motive fluid comprising an aqueous nitrogen containing organic compound to a vapour state and utilizing the energy of the vapourized motive fluid to perform work. The motive fluid may contain 25 to 90 per cent by weight of a nitrogen containing compound selected from pyridine, 2-methyl pyridine, 3-methyl pyridine,4 methyl pyridine 2, 6 dimethyl pyridine, 1, 2-diazine, 1,3-diazine or 1, 4-diazine. The invention is applicable to automotive Rankine cycle engine systems the engine may be a turbine or a reciprocating engine. The Specification refers to binary cycle systems employing a plurality of turbines or reciprocating engines.
Patent GB-1341909-A (GB)
Title: Modular fluid system
IPC: F15B13/00
Filed: 1971-12-07
Abstract: 1341909 Fluid pressure motor control circuit HYDRO-STACK MFG CORP 7 Dec 1971 Divided out of 1341908 24017/72 Heading F1P [Also in Division F2] Modules 28, 28a of a high pressure fluid control circuit as described in Specification 1341908 are secured together by dowels 142 having transverse slots 146 therethrough with tapered ends, each dowel 142 extending into aligned bores 140 in the modules to be retained by cotters 148 having tapered portions 154 which engage in the ends of the slot 146. Each cotter has a screw-threaded head which engages in a screw-threaded bore 150 perpendicular to the bore 140, and a plain nose which is housed in a bore 144 coaxial with the bore 150. The head has a hexagonal socket therein.