baber/WOPTO huggingface dataset:
Patent GB-1533109-A (GB)
Title: Rollover ploughs
IPC: A01B61/04
Filed: 1975-12-12
Abstract: 1533109  Rollover plows deflectable by obstructions INTERNATIONAL HARVESTER CO 12 Dec 1975 [13 Dec 1974] 50984/75 Heading A1B The share support beams 11, 11' are secured to extensions 21, 21A which are pivoted at 24 to each other and to a hydraulic jack(s) 26, and are pivoted at 12, 12A to beams 13, 13A pivoted at 14, 14A to a yoke portion 15 of a frame 2 rotatable about the axis for inverting the shares 7, 7A, stops being provided to limit the rearward pivoting of the extensions 21, 21A about 12, 12A under the influence of the hydraulic jack(s) 26 in normal working, the working share being subjected to a restoring force following an obstruction. In Fig. 1, the stops are at 51 on the upper extension 21A and engage against the lower extension 21. Resilient assemblies 54 or 54A respectively engage the extensions 21, 21A when the share 7 is too high or too low to provide the restoring force. Further stops 34, 34A limit upward deflection of the beams 13, 13A. The angle of attack of the share 7 automatically varies to maintain a constant working depth D. On meeting an obstruction, the share 7 normally moves up and over it, but if the share 7 jams beneath the obstruction (Fig. 6), the extension 21 is pivoted about pin 12 thus forcing the rod 25 into the ram 26 against the resilience provided by a gas pocket 39 in the jack 26, until the obstruction is cleared when the jack extends again. Alternative holes 10, 10A may be provided for the pins 12, 12A in the extensions 21, 21A (as shown) and in the beams 13, 13A (not shown).  In Fig. 12, the resilient assemblies 54, 54A have been omitted and the jack 26 is not pivoted to but is applied against two studs 91, 91A on the frame 2 and two studs 92, 92A on the extensions 21, 21A. As soon as the share 7 is lifted by an obstruction the jack 26 disengages from the pins 91, 92A and the line of action of the jack 26 provides the restoring force on the share 7. If the share 7 catches on the obstruction (as shown), the jack 26 is forced to retract by the pivoting of the extension 21 about pin 12. In Fig. 13, the jack cylinder 27 is rigidly attached to a triangular plate 47 which bears against two studs 91, 91A and is provided with a slot 46 in which the pivot pin 24 is slidably engaged, and operation is similar to that in Fig. 12. In Fig. 14, two jacks 26, 26A are pivoted at 14, 14A (or elsewhere) to the frame 2 and have slots 50, 50A slidably receiving the pin 24. In Fig. 16, a link 31 connects pivot pins 12, 12A, and the stops 51 are replaced by stops 32, 32A on the link 31. Elongated holes in the ends of the extensions 21, 21A receive the pivot pin 24.
Patent GB-1442552-A (GB)
Title: High capacity smokeless flare having a very low gas flow detector
IPC: F23L7/00
Filed: 1974-11-26
Abstract: 1442552 Flare stacks TEXACO DEVELOPMENT CORP 26 Nov 1974 [19 Dec 1973] 51048/74 Heading F4T The method of controlling the steam supply to an aspirating steam nozzle gas flare for burning unwanted gas depending on the rate of flow of unwanted gas even to small rates of flow is similar to that disclosed in British Specification 1,405,147 with a refinement in that a second by-pass line 17 with a flow measuring device 24 for measuring very small rates of flow (<1% of the maximum main pipe flow rate) is included across the first by-pass line 15 which measures rates in the range 3-1% of the main pipe flow rate.
Patent GB-1530593-A (GB)
Title: Boat hulls and submarines
IPC: B63B1/22
Filed: 1975-11-26
Abstract: 1530593 Reducing hull resistance A H ORR 26 Nov 1975 [26 Nov 1974] 51089/74 Heading B7A A marine vessel has a hull with water guide plates mounted on it which guide water along non-converging (when viewed in plan) streamlines over the stern section of the hull. In a first embodiment, water guide plates 15 are mounted on each side of the hull. The plates 15 have the same contour as the hull at a position where the beam is a maximum and they extend aftwardly from this position beyond the stern of the hull. Keel plates 16 depend from the plates 15 and carry pivotable planing surfaces 18. A further hinged plate 19 provides a planing surface beneath the keel plates 16. The keel plates 16 extend forwardly beneath the bow to define an inverted channel 17 which guides relatively undisturbed water on to the surfaces of the stern section of the hull. In a second embodiment the vessel is a trimaran with the two outer hulls having water guide plates similar to those in the first embodiment. In a third embodiment (not shown) a catamaran has two asymetric hulls with water guide plates attached to their undersides. Two other embodiments are described relating to a submarine and a surface vessel each having water guide plates in their stern regions.
Patent GB-1056470-A (GB)
Title: The polymerisation of vinyl compounds; and the resulting polymers
Inventor: BARBER EDWARD GEORGE
IPC: C08F2/18
Filed: 1965-12-02
Abstract: A vinyl monomer, e.g. styrene, is polymerized in aqueous suspension containing bentonite and gelatin (in a weight ratio of 0.3-0.7:1) as the suspension stabilizer and which is maintained at a pH of 4.5-5.5 by means of a buffering agent, the amount of vinyl monomer in the suspension being not more than a volume ratio (with respect to water) of 45:55.  The polymer, which is in bead form, may be expandable, e.g. a volatile liquid expanding agent such as pentane may be supplied to the polymerization reaction when the degree of conversion of styrene to polymer is at least 60%.  The buffering agent may be sodium acetate/acetic acid, sodium hydroxide/acetic acid or sodium acetate/hydrochloric acid. A polymerization catalyst, e.g. a mixture of benzoyl peroxide and tert. butyl perbenzoate, may be used.
Patent GB-1170278-A (GB)
Title: Textile Machinery.
IPC: D01H9/02
Filed: 1966-11-16
Abstract: 1,170,278. Doffing textile spindles. DEUTSCHER SPINNEREIMASCHINENBAU INGOLSTADT NIEDERLASSUNG DER SCHUBERT & SALZER MASCHINENFABRIK A.G. 16 Nov., 1966 [19 Nov., 1965], No. 51335/66. Heading D1D. In apparatus for removing and replacing the bobbins on a multi-spindle frame the vertical bobbin lifting movement of a bobbin clamp 7 and gripper 8 is combined with a horizontal movement away from the spindlse so that the delivery rollers or attachments thereto are not fouled. As shown clamp 7 has members 27, 28 pivotted thereto and pivoted to a support 2 at 22, 23. Member 27 which forms a crank member is attached to a vertically movable rod 91 lying within a vertically movable tube 11 on which support 2 is mounted. Tube 11 is vertically moved by a crank arrangement 13, 14, 15, 16 while rod 91 is moved in phase with tube 11 but with a different amplitude by a second crank pin 6 on the crank 15, the pin carrying a block 61 which slides in a guide 9 fast with rod 91. By choosing the shape of guide 9 and the correct ratio of crank arm ratios the desired lifting and withdrawing motion of gripping element 8 is obtained. In a further form movement of rod 91 operates an eccentric or wedge to horizontally displace the clamp 7 on a slide while tube 11 provides the vertical motion.
Patent GB-1222609-A (GB)
Title: Improvements in sealing ring devices
IPC: F16J9/16
Filed: 1968-10-31
Abstract: 1,222,609. Piston rings; shaft seals. ATLAS COPCO A.B. 31 Oct., 1968 [7 Nov., 1967], No. 51686/68. Headings F2B and F2T. Sealing means between two relatively movable members, e.g. a cylinder 1 and piston 3, comprises a first split ring 4 of L-section and a second split ring 5 of rectangular section which fits in the recess of the L-section ring to form a ring device of rectangular cross-section, the rings being arranged to break joint and prevented from relative rotation and being of elastic self-lubricating composition, e.g. PTFE, polyamide or polyacetal. In the embodiment shown the rings are locked peripherally by a pin 8. In another embodiment, Fig. 2 (not shown), an axial projection (12) on the ring (4) fits the gap (7) in the ring (5).
Patent GB-1117492-A (GB)
Title: Compositions containing vinyl chloride polymers
IPC: C08K5/098
Filed: 1965-12-06
Abstract: A transparent, non-toxic composition comprises 100 parts by weight of a vinyl chloride polymer or a copolymer comprising at least a major proportion by weight of vinyl chloride, 0.5 to 5 parts of a non-toxic stabilizer consisting of a Ca salt of an aliphatic acid and a Zn salt of an aliphatic acid, and 0.5 to 2 parts of a rosin acid or an ester thereof.  Specified Ca and Zn salts are those of stearic, lauric, ricinoleic, octoic and ethylacetoacetic acids. The rosin acid or ester is e.g. a mixture of rosin acids, isolated abietic, pimaric hydrogenated dihydro- or tetrahydroabietic acid, methyl or ethyl esters of rosin acid, abietic acid or hydrogenated abietic acid or a rosin acid ester of ethylene glycol, diethylene glycol, triethylene glycol or polyethylene glycol.  In Example A polyvinyl chloride is mixed with Ca stearate, Zn stearate, the diethylene glycol ester of hydrogenated rosin acid and epoxidized vegetable oil, extruded and moulded into bottles.  In Example B a vinyl chloride-cetyl vinyl ether 98:2 copolymer is mixed with Ca, Mg and Zn stearates, epoxidized vegetable oil, and the pentaerythritol ester of hydrogenated abietic acid, methyl ester abietate, the ethylene glycol ester of pimaric acid, rosin acid or purified rosin and extruded into sheets.
Patent GB-1212429-A (GB)
Title: Adjustable bolt cutter
Inventor: FISCHER FRITZ
IPC: B26B17/02
Filed: 1968-11-01
Abstract: 1,212,429. Bolt cutters. HERMANN WEGERHOFF ALARM - WERKZEUGFABRIK. 1 Nov., 1968 [10 Nov., 1967], No. 51895/68. Heading B3W.  An adjustable bolt cutter comprises two cutting members coupled for pivotal movement relative to each other and each including a cutting jaw and an actuating arm, two hand levers pivotally connected one to each actuating arm, a hinge linking the hand levers and manually operable means for adjusting the position of a pivot pin of the hinge relative to at least one of the pivotal connections between a hand lever and its associated actuating arm. As shown, Fig. 1, the hinge is in the form of a bell-crank lever 29 pivoted to bosses on linkage heads 19 and 25 at 22 and 28 respectively and the position of hinge pin 22 is adjustable relative to hand lever 26 by turning a threaded sleeve 32 rigid with handle 33 on a threaded pin 31 or linkage head 25. A ring 35 located between stops 34 on the sleeve carries a link 36 pivoted at 38 to the bell crank 29. A stop 23 may alternatively be mounted on the ring 35 at the side facing handle 2. In another embodiment, Fig. 2, not shown, two bell cranks (62) are pivoted to each other at (42) and are each associated with manual adjusting means similar to those of Fig. 1. In a further embodiment, Fig. 3, not shown, using a single bell crank lever, the manual adjusting means comprises a rotatable by axially fixed sleeve with a cam face at its forward end engaging a cam face on a ring movable longitudinally of the linkage head of a hand lever against the action of a spring and carrying a link acting similarly to the link 36. Detents may be provided on the cam faces to give a self-locking action. The bellcrank lever may be replaced by a slide 92, Fig. 5, movable transversely of the linkage head 90 of the hand lever 91 by means of a bell crank 98 pivoted through a lever 101, when a ring 102 is moved longitudinally of the hand lever 91 by rotation of the threaded handle 103. In a further embodiment, Fig. 4 (not shown), hinge members (86a) are rigid with the linkage head (86) and are pivoted to each other at (86b), a pivot connection (80b) between the hand lever (81) and its actuating arm being movable relative to the hinge pivot (86b) by means of a threaded handle (84) a ring (83), links (82) and a bellcrank (80).
Patent GB-1346528-A (GB)
Title: Heterocyclic-substituted nebularin derivatives
IPC: C07D473/00
Filed: 1972-11-13
Abstract: 1346528 N<SP>6</SP>-(heterocyclic substituted)-nebularia derivatives BOEHRINGER MANNHEIM GmbH 13 Nov 1972 [17 Nov 1971] 52331/72 Heading C2C Novel compounds (I) and their salts in which R 1  is hydrogen, halogen or amino, R 2  and R 3  are selected from hydrogen, halogen, hydroxy, or alkyl, alkoxy or hydroxyalkyl groups containing up to 5 C atoms and n is 1, 2 or 3 with the proviso that when n = 1 or 2 R 1  is not hydrogen are prepared by reaction of 6-Z-nebularin in which Z is halogen or mercapto with the corresponding amine. The hydroxyl groups of the ribose nucleus are blocked preferably by acetyl groups which are removed by basic hydrolysis. Compounds (I) including N-pyrrolidino- and N-piperidino nebularin reduce the concentration of lipids in blood serum and form with a solid carrier or diluent or with a liquid diluent or carrier which is sterile or contains a flavouring agent, a pharmaceutical composition which may be administered orally or parenterally.
Patent GB-1194019-A (GB)
Title: Microwave Heating Apparatus
IPC: H05B6/80
Filed: 1967-11-17
Abstract: 1,194,019. Microwave cooking; aerials; R.F. couplings. BOWMAR/TIC Inc. 17 Nov., 1967 [21 Nov., 1966], No. 52351/67. Headings H5H and H4A. [Also in Division H1] A microwave cooker includes a metallic cooking oven 12, Fig. 1; a waveguide 24 for coupling a magnetron 44 to antenna 16, 18 within the oven; and a fan 38 to force air over cooling fins 42 of the magnetron, into the waveguide through pipes 48 and into the oven 12 to ensure that grease and vapours from food cannot enter the waveguide and are instead forced out through openings 52 in the oven wall. Antenna 16, 18 may be heated by an electric current. Waveguide 24 is coupled to antenna 16, 18 through an output probe 28 and a coaxial sleeve 26, probe 28 being connected to antenna 16, 18 through a metal bar 30 (see Fig. 2). The output probe of the magnetron extends into a shield 46, Fig. 4, inserted in the waveguide. A coupling disc 58, Fig. 4, threaded on to the magnetron at 56 is releasably locked around an opening 64 of the waveguide through locks 66 biased to the right by springs 74 and operated through rotatable levers 72. The dimension of the surface of disc 58 abutting the confronting wall of the waveguide is # #/4 to prevent leakage. The cooling fins 42 comprise a pair of opposed packages of stacked aluminium plates (80, Fig. 7), the inner edges being circular and conforming to the curvature of the anode (86, Fig. 6) of the magnetron, and the magnetron being supported between the packages through end-plates (88) clamped by snap-rings (89, Fig. 6). Silicon grease may be coated on the circular edges of the plates to enhance contact. A switch (182, Fig. 3) mounted in the magnetron compartment 34, Fig. 1, connects elements 16, 18 to a current supply through a cord (184, Fig. 3) and plug (186) and the magnetron power supply 36 to the magnetron cable 104. The switch can be operated by separate knobs, or by a single knob 180 through a shaft, the arrangement allowing microwave and/or resistance cooking. The fan motor 40 is connected via switch (182) to cord (184) through a switch that remains closed in all but the "off" position of knob 180, so that the fan 38 is always running when the oven is "on".
Patent GB-1315167-A (GB)
Title: Production of hollow bodies of semiconductor material
IPC: C23C16/01
Filed: 1970-11-04
Abstract: 1315167 Hollow semi-conductor bodies; silicon SIEMENS AG 4 Nov 1970 [5 May 1970] 52366/70 Heading C1A [Also in Division C7] A hollow body of a semi-conductor is produced by depositing a layer of semi-conductor material on the outer surface of a heated carrier body made of a heat resistant material other than said semi-conductor material, and thereafter removing said carrier body from said layer without disturbing said layer, wherein said carrier body is formed integrally with, or secured to a base-plate and wherein the surface of said carrier body on which said layer is deposited tapers from a maximum periphery at its junction with said base-plate to a closed end on one side only of said base-plate. Claimed carrier bodies are pyramidal, conical, truncated pyramidal, hyperboidal or conical in shape, part spheres of not more than a hemisphere in volume, or have a " pointed arch " profile and are preferably made of graphite, compressed graphite, lustrous carbon, glass carbon, pyrographite or spectral carbon. Specified semi-conductor materials are silicon, germanium, SiC and A m B v  compounds. In the illustrated embodiment the reaction vessel 1 has an open lower end having an inwardly directed flange in which are located outlet pipes 2. The carrier body 4 having an annular baseplate 5 is arranged within the vessel being held in gas-tight fashion against the flange by sealing plate 6 and screws 7. A vertical conductive rod 8 is screwed into the carrier body 4 and the body 4 is heated by application of a voltage applied between said rod 8 and the plate 6 which is electrically connected to carrier body 4 by means of screws 7. The carrier body 4 is heated in this way to about 1200‹ C. and hydrogen gas is passed into the reactor via pipes 66, 68 and 61, 64. In the latter case the hydrogen also passes through a vessel 62 containing SiHCl 3  which is thus introduced as vapour into reaction vessel 1 where on contacting the heated carrier body 4 it decomposes to form a silicon layer 13 on said body. On completion of the deposition the carrier body is cooled and may be separated from the deposited layer. When said carrier body is a graphite as described above this separation is readily achieved when the graphite contracts on cooling to a greater extent than the deposited material.
Patent GB-1489970-A (GB)
Title: Process for preparing perfluoro-alkoxy-propionic acid fluorides
IPC: C07C51/62
Filed: 1975-12-22
Abstract: 1489970 Perfluoroalkoxy-propionyl fluorides HOECHST AG 22 Dec 1975 [24 Dec 1974] 52376/75 Heading C2C Perfluoroalkoxy - propionyl fluorides of general formula in which R<SP>1</SP> is a C 1-9  perfluoroalkyl group or a group of formula and n is 0, 1 or 2, is produced by reacting a perfluorocarbonyl compound R<SP>2</SP>-CO-R<SP>3</SP>, in which R<SP>2</SP> is F of R F <SP>2</SP>; R<SP>3</SP> is F of R F <SP>3</SP>, or if R<SP>2</SP> is F, R F <SP>3</SP>-OCF(CF 3 )-, each of R F <SP>2</SP> and R F <SP>3</SP> is a C 1-4  perfluoroalkyl group, or R<SP>2</SP> and R<SP>3</SP> together with the CO group form perfluoro-2-oxo-3,6- dimethyl-1,4-dioxane, with hexafluoropropene epoxide in the presence of tris-(dimethylamino] difluorophosphorane in an aprotic polar solvent at - 50 to + 10 C. The reaction temperature is preferably -40 to -20 C. and the solvent may be a nitrile, DMF or an ether. Amongst the examples the compounds perfluoro-α-(3,6- dimethyl - 1,4 - dioxanyl - 2 - oxy)propionyl fluoride, perfluoro - α - isopropoxypropionyl fluoride and perfluoro - α - [2 - (n - propoxy)- propoxy]-propionyl fluoride are prepared. Perfluoro - 2 - oxo - 3,6 - dimethyl - 1,4 - dioxane (II) is prepared by reacting perfluoropyruvic acid fluoride in the presence of tris-[dimethylamino]phosphorane. 2,5 - Bis - (trifluoromethyl) - 3 - perfluoroethoxy- 1,4-dioxane is produced from compound II above by saponification and decarboxylative fluorination.
Patent GB-1242683-A (GB)
Title: A hinge arrangement for a swing door
IPC: E05F1/12
Filed: 1968-11-07
Abstract: 1,242,683. Double spring hinges. DORKEN & MANKEL K.G. 7 Nov., 1968 [7 Nov., 1967], No. 52829/68. Heading E2F. A hinge for a swing door comprises two parallel mounting tubes 12, 13 joined by a flange assembly 14, and two hinge flaps 15. 16 coupled one to each of the tubes for relative pivotal movement with respect thereto against a spring loading adapted to bias the door in the closed position, the distance between the tubes being less than the width of each of the hinge flaps and adjustable stop means 40 projecting from the flange upon which the flaps rest in the closed position. As shown, each flap 15, 16, when the door is closed, is spaced from the flange assembly and lies in a plane substantially tangential to the tube 13, 12 respectively. The mounting flanges of each tube are preferably co-planar, as shown.
Patent GB-1150920-A (GB)
Title: Improvements in or relating to Building Structures
Inventor: BOLT HARRY COLLETT
IPC: E04B5/00
Filed: 1966-11-25
Abstract: 1,150,920. Floor or roof stricture. TERRAPIN Ltd. 6 Nov., 1967 [25 Nov., 1966], No. 52929/66. Heading E1W. The floor or roof structure of a building unit in which the floor and roof structure are detachably secured to end corner uprights is comprised by a frame having a pair of long side beams 10, 11 which may be of metal (for floors) or wood (for roofs) connected together by end bars 22, 23, joists 20 fixed at intervals each with its ends engaging the side beams and clamped thereto by tie rods extending between the side beams intermediate their ends and panels each extending from one side beam to the other and of such a size lengthwise of the frame that from two to eight panels are required to cover the frame, the panels being held down at their transverse edges by means which can be disengaged to free the panels for removal. The panel holding means preferably comprises a strip 36 Fig. 4 engaged with rebates in the upper transverse edges of the panels 28 and secured as by screws to an underlying joist. The panel may be provided with insulation 27 and floor covering material 29.
Patent GB-1260177-A (GB)
Title: Improvements in or relating to castors
IPC: B60B33/04
Filed: 1969-11-03
Abstract: 1,260,177. Castors. TENTE-ROLLEN G.m.b.H. & CO. Nov.3, 1969 [July 19, 1969], No. 53684/69. Heading A4J. A swivelling, shock-absorbing, castor assembly includes an attachment or mounting member formed as a hollow shaft 5, and a running wheel rotatable in a fork, the fork being swivellable on an axis 2 and consisting of a fork end-piece 3 and fork legs 4 pivoted at 12 in the end-piece on an axis offset from the axis 2, a cross-member 8, connecting the legs 4, bearing through a spindle 10 on a compression spring 6 to damp upward movement of the wheel round the axis 12 when an obstacle is encountered. The spindle 10 passes through and is vertically displaceable in a bore in the fork end-piece 3 and has an extension 10a on which a surface of the cross-member 8 bears, the axis of rotation of the wheel being displaced laterally from the swivel axis 2 when the obstacle is encountered. A regulating screw 15 is provided for adjustment of the pre-stressing of the spring 6.
Patent GB-1356793-A (GB)
Title: Device for displaying advertisements or other notices
IPC: G09F1/12
Filed: 1970-11-12
Abstract: 1356793 Picture frames and mounts R E COX 11 Nov 1971 [12 Nov 1970] 53848/70 Heading A4X [Also in Divisions G4-6] A base 15, to which a poster is secured, is located between a translucent sheet 12 and a backing member 11, the translucent sheet 12 and backing member 11 which are separated by a frame 10 forming a holder for the base 15 which allows the base to be moved through a closable gap at the bottom of the holder on opening of a hinged part 13. The downward movement of the base is limited by stops 17 which act against the two projections 16 on the base 15. The holder is supported by a channel 21 which is fixed to the exterior of a vehicle.
Patent GB-1375870-A (GB)
IPC: B02C23/06
Filed: 1971-11-19
Abstract: 1375870 Vibratory mills KLOCKNERHUMBOLD-DEUTZ AG 19 Nov 1971 [21 Nov 1970] 53917/71 Heading B2A  A vibratory tube mill for comminuting plastics comprises a grinding chamber and feed openings spaced along the length of the chamber, arranged below the intended level of material to be ground, to supply coolant medium, e.g. liquid nitrogen, the supply being controlled by a control means. As described, a pair of vibratory tubes 1, 2 interconnected in known manner; and provided with a screen 9 to retain grinding media, comprise insulating jackets and coolant feeds 11, 15 controlled by valves 12, 17 in response to temperature sensed by sensors 13, 18. The coolant feed 11 may be omitted. The second tube 2 may include sensors and control units. The material feed inlet may include a pocket wheel 25. The nitrogen now in gaseous form is withdrawn at 23, 24.