baber/WOPTO huggingface dataset:
Patent GB-1289609-A (GB)
IPC: D21G3/00
Filed: 1970-06-04
Abstract: 1289609 Doctor blades NORTON CO 4 June 1970 [16 June 1969] 26950/70 Heading B2L [Also in Divisions D1 and D2] A doctor blade 24 for application to a relatively moving curved surface comprises a leading edge 22b, a wear land 38 adjoining the leading edge and in the surface of the blade to be placed adjacent to the surface, the wear land 38 being of a material which can quickly conform to the shape of the moving surface, and a wear-resistant portion 40 adjoining and parallel to the wear land 38 which portion can engage and subsequently reduce and control the rate of conformance of the wear land to the curvature of the surface. The blade may be a flat strip having a slot within which a strip of wear-resistant material is mounted (as shown), or may be a strip of wear-resistant material having a coating on its top edge of the material of the wear land (Fig. 6, not shown), or may be a flat strip having a projecting wear land on a strip of wear-resistant material inserted into the shoulder so formed (Fig. 7, not shown). The wear-resistant material may be a thermally sprayed ceramic material, and there may be provided a coating of a metal between the wear-resistant material and the rest of the blade. The basic blade may be of metal, plated metal or plastics material.
Patent GB-1289798-A (GB)
IPC: B04C9/00
Filed: 1971-04-19
Abstract: 1289798 Hydrocyclones N A L WIKDHAL 19 April 1971 [1 April 1970] 25424/71 Heading B2P A hydrocyclone for removing impurities from a fibre suspension comprises a separation chamber 7 having an inlet 6 for the suspension to be purified and respective light and heavy fraction outlets 9, 8 of which at least the heavy fraction outlet 8 is on the axis of the chamber, an additional supply inlet 17 being provided to direct additional fluid axially of the chamber towards the heavy fraction outlet to cause light impurities concentrated in the centre of the chamber to flow to and escape through the heavy fraction outlet. As shown, the outlet 9 is formed in a Venturi-shaped nozzle 10 having mounted therein radial guides 12 for eliminating rotation of the out-flowing light fraction. The inlet 17 is constituted by the bore of a tube 13 and communicates with a collecting chamber 16 for the light fraction. A number of hydrocyclones may be mounted in the wall 15 of the collecting chamber. More than one tangential inlet 6 may be provided. Due to the shape of the outlet 9 and to the provision of the guides 12 the pressure of the light fraction in the chamber 16 is higher than the pressure in the separating chamber 7 so that part of the light fraction flows back through the bore 17 towards the outlet 8. In a modification, Fig. 1 (not shown), the additional fluid is supplied through a conduit extending axially through the light fraction outlet. A three-stage separation apparatus comprising three hydrocyclones is shown in Fig. 4. The suspension is fed through a pipe 19 to a first separator 18 which discharges its heavy fraction via pipes 20, 21 to a second separator 22 which in turn supplies a third separator 25 with its heavy fraction through a pipe 24. The light fraction from separator 18 escapes through an outlet 23. The light fraction from separator 25 passes via a pipe 26 and pipe 21 to separator 22. The light fraction from separator 22 returned via a pipe 28 to separator 18 as the additional fluid. Alternatively, the light fraction from separator 25 can be returned to separator 18 either with the light fraction from separator 22 or by itself, the light fraction from separator 22 in the latter case being returned to the inlet pipe 19 of the separator 18.
Patent GB-1290391-A (GB)
IPC: B64F1/02
Filed: 1971-12-07
Abstract: 1290391 Aircraft arresting system BORGS FABRIKS AB 7 Dec 1971 62000/69 Heading B7G  An aircraft arresting system of the combined net and hook and cable type comprises coupling means adapted to selectively connect the cable or the net to energy absorbing brakes. The net is mounted between a pair of masts and when lowered operates the coupling means to connect the cable to the brakes and when raised operates the coupling means to disconnect the cable and connect the net to the brakes.
Patent GB-1296219-A (GB)
IPC: A01G23/06
Filed: 1969-11-26
Abstract: 1296219 Lifting trees YATTENDON ESTATES Ltd 19 April 1971 [26 Nov 1969] 57918/69 Heading B8H Harvesting apparatus for Christmas trees or other small trees or shrubs comprises a framework 25 for mounting on a tractor (35) (Fig. 5, not shown) at least one gripper (1, Figs. 1 and 2) so located on the framework that the gripper is just above ground level, and mechanism for lifting the gripper to uproot a tree held by the gripper. The latter has an open-mouthed fixed jaw 3 and a movable jaw 16 controlled by a trigger 15 extending across the mouth of the fixed jaw in such a way that when engaged by a tree stem 18 the trigger releases the movable jaw and allows it to close to grip the stem between the two jaws. The fixed jaw 3 is in the form of a V, across the mouth of which the trigger 15 extends, and the trigger is directly connected to the movable jaw 16. The latter is released into operative positions (dot-dash lines in Fig. 1) by the action of an over-centre tension spring 8. The fixed jaw is formed by two spaced plates 1 (Fig. 1) and 2 (Fig. 2). The movable jaw also comprises two spaced members 16, and 21, the latter lying between the two fixed plates. Five of the grippers 1 are mounted on a rotor 22 having mechanism 58 for rotating it step by step to bring each gripper in succession into the operative position. Due to the inclined plane of the rotor 22, its forward movement provides an upward force component for uprooting each tree. A portion 20 of the jaw 21 engages a fixed frame part so as to cause retraction of the jaws 16 and 21 and release of the tree. This results in over-centre movement of the spring 8, so that the jaws are then held by the spring in their inoperative position (full lines Fig. 1). A platform 46 can be downwardly thrust by the action of an hydraulic cylinder (49) (Fig. 6, not shown), so as to augment the lifting action of the rotor 22. A rotating wheel 55 may be used for detaching dirt from the roots of each tree. There may be a platform (36) (Fig. 5, not shown), on which an operator can stand, and a pallet 38 for collecting the uprooted trees. A retractable stop (60) (Fig. 7, not shown) may be positioned on each side of a frame member 23 so as to prevent the rotor from moving round while a tree is being uprooted.
Patent GB-1297214-A (GB)
IPC: C09B43/28
Filed: 1971-04-19
Abstract: 1297214 Disazo dyes BAYER AG 19 April 1971 [12 Feb 1970] 21630/71 Heading C4P The invention comprises disazo dyes of formula wherein R 1  and R 3  represent non-ionic substituents; R 2  represents hydrogen or an alkoxy group; X is an optionally alkylated hydroxyl group or an optionally substituted amino group ; n is 0, 2 or 3 and m is 0, 1 or 2. The dyes may be prepared by coupling a diazotized aminoazo compound of formula with a compound of formula and optionally subsequently alkylating any hydroxyl groups in the produced disazo compound. In one embodiment, the dyes may be produced by diazotizing a 1-aminonaphthalene sulphonic acid of formula where Y is NO 2  or acylamino, coupling it with a phenol of formula optionally alkylating the hydroxyl group, reducing or removing the group Y and diazotizing the resulting aminoazo compound of formula and coupling it with a coupling component of Formula III above. The dyes give red or orange shades on natural and synthetic polyamide fibre materials.
Patent GB-1297476-A (GB)
IPC: A61K9/50
Filed: 1971-04-19
Abstract: 1297476 Microgranulate FARBENFABRIKEN BAYER AG 19 April 1971 [4 March 1970] 22308/71 Heading A5B [Also in Division B8]  Solid, free-flowing, substantially spherical particles (microgranulates) are prepared by dispersing or dissolving an "active" material in a solution of a cellulose ester in a glycol ether and introducing discrete droplets of the resultant into water whereby the glycol ether is given up to the water and the droplets become solidified and may be separated. Suitable cellulose esters are: cellulose acetate, propionate, propionate acetate and butyrate acetate preferably having 2.2 to 2.6 acyl radicals per anhydroglucose unit. Suitable glycol ethers are mono- and di-alkyl ethers of aliphatic glycols having 1 to 6 carbon atoms in the alkyl group. Examples relate to processes in which the "active" material is: aspirin, paraffin oil, TiO 2  and the compound (CH 3 O) 2 PO (CHOH-CCl 3 ).
Patent GB-1297961-A (GB)
IPC: B66C23/70
Filed: 1969-02-12
Abstract: 1297961 Releasable fastenings W F VONCK 11 Feb 1970 [12 Feb 1969] 7645/69 Heading E2A [Also in Division B8] A crane jib (20), Fig. 1 (not shown), comprises sections 22, 23, (24) telescoping into a base section 21 with latches (41) to ensure sequential movement of the sections. Fig. 5 shows a latch (41) in the latched condition with pairs of catches 40 pivoted at 72 on the section 22 locking it to the base section 21 and loaded into engagement by a spring 77. Unextended section 23 is shown resting on brackets 50 attached to the section 22. A cable 31 is used to extend the sections 22, 23, 24 and passes around a roller 61 on a sliding bar formed by two plates 60 biassed to the right by a compression spring 88. When the cable 31 is not under tension it is thus kinked as shown. A bar 75 connects the right hand pair of catches 40 and is engaged by notches 84 in the plates 60. Tensioning of the cable 31 moves the plates 60 to the left, Fig. 6, by force exerted on the roller 61, the release force required being determined by an adjustable spring 55 acting between a diagonal brace 47 and an abutment 56 on a detent 36 with a latch pin 37 arranged to co-operate with a shouldered surface 38 on a hook 35. The shouldered surface 38 of the hook 35 slopes slightly downwards to ensure that the detent 36 can transmit part of the tension of the spring 55 and, as this spring is compressed, so that the detent can be released from the hook 35.
Patent GB-1304517-A (GB)
IPC: C08F14/00
Filed: 1969-05-19
Abstract: 1304517 Polymer compositions BP CHEMICALS Ltd 11 May 1970 [19 May 1969] 25418/69 Headings C3G and C3P Polymer compositions are prepared by mixing an aqueous latex of a polymer having a glass transition temperature above 20 C. stabilized with a destructable emulsifying agent with a monomer chosen from ethylenically unsaturated aromatic, C 1 -C 6  alkyl ester of an unsaturated acid, vinyl ester of a C 1 -C 6  saturated acid, acrylonitrile and methacrylonitrile in which the polymer does not dissolve, destroying the emulsifying agent without increasing the size of the polymer particles so that these pass into the monomer phase and polymerizing the monomer. Preferably the polymerization is effected in suspension in the water of the polymer latex. In Examples the polymer is (1), (12) and (14) styrene-acrylonitrile, (2), (3) and (7)-(10) ABS (4), (5) and (13) PVC, (6) polystyrene (11) polymethylmethacrylate and the monomers are (1), (5) and (6) styrene/methyl methacrylate (2), (4), (7), (9), (10) and (13) styrene/acrylonitrile, (3), (8), (12) and (14) methyl methacrylate (11) styrene. The emulsifying agent is a carboxylate destroyed with an acid or an alkyl sulphate destroyed with calcium chloride or an acid.
Patent GB-1308917-A (GB)
Title: Azo dyestuffs containing indazolylazo radicals
IPC: C07D231/56
Filed: 1970-01-26
Abstract: 1308917 Indazoles; hydrazine derivative IMPERIAL CHEMICAL INDUSTRIES Ltd 4 Jan 1971 [26 Jan 1970] 3585/70 Heading C2C [Also in Division C4] 2 - Methyl - 3 - amino - 5,7 - dinitro - indazole is prepared by condensing hydrazine hydrate with 2-methoxy-3,5-dinitro-benzonitrile to yield 2 - cyano - 4,6 - dinitro - phenylhydrazine which is boiled with aq. HCl and sodium acetate to give 3-amino-5,7-dinitro-indazole which is treated with dimethyl sulphate in nitrobenzene. The following compounds are prepared using one or more of the preceding synthesis steps: 2-methyl- 5 - amino - indazole, 2 - methyl - 3 - amino - 5- nitro - 7 - (chloro - or bromo - ) - indazoles and 2- (ethyl or n-butyl)-3-amino-5,7-dinitroindazoles.
Patent GB-1319668-A (GB)
Title: Apparatus for avoiding faulty exposures in photographic copying  machines
IPC: G03B27/62
Filed: 1970-12-22
Abstract: 1319668 Photographic enlargers PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 22 Dec 1970 60781/70 Heading G2A In micro-film re-enlargement apparatus having a rotatable original holder 1, a monitor screen for viewing a film frame prior to enlargement thereof, and having a choice of lenses of different focal length, there is provided means for preventing a copy being made if the film frame to be imaged is in a viewing rather than in a projecting position, so as to utilize fully the copying area of electro-photographic material. For a lens of short focal length, a switch (11) Fig. 3 (not shown), is closed. Depending on the position of the holder 1 a switch 9 or a switch 10 is closed, the former being closed when a frame 3 is in both the viewing and projecting position. While the latter is closed only when a frame 4 is in the viewing position. In the latter case, switches 10, (11) do not complete a current path to a manually operable switch (15), thus depression thereof will have no result, and copying will not take place. For double size frames Fig. 2 (not shown) a longer focal length lens is utilized, thereby closing a switch (12). In this case, switch 10 will be closed when a frame (5) is in both the viewing and projecting positions, while switch 9 is closed only when a frame (6) is in the viewing position, and switches 9, (12) do not complete a current path to the manually operable switch (15). Lamps (13, 14) are provided to indicate readiness for copying and the insertion of a microfilm 2 having double size frames.
Patent GB-1322123-A (GB)
Title: Punching apparatus
IPC: B21D53/20
Filed: 1971-03-26
Abstract: 1322123 Punching P-O STRANDELL 26 March 1971 7883/71 Heading B3W For blanking elements such as washers from a workpiece, a holder 12 for coaxial punches 16, 17 is first actuated by an impact tool (38), Fig. 3 (not shown), to drive the punch 17 into the workpiece with a movable die-holder 23 in the broken line position of Fig. 1, i.e. with the die 22 located beneath the punch 17. Immediately a disc (28), Fig. 2 (not shown), has been punched out of the workpiece the punch 17 is stopped by engagement of the punch 16 with the workpiece. With the disc (28) in the die 22 the die holder is moved to the full line position in which the disc is discharged through shoot 27 and the die 21 is beneath the punch 16. The holder is actuated again to blank out an element (18) Fig. 2 (not shown), the stroke of the punch 16 being stopped by engagement of a shoulder 34 on the punch with the workpiece or of the lower face 35 of the holder 12 with a shoulder 11 in the punch casing 11. The punch holder is raised by air pressure and the die holder returned to the broken line position in which the blanked element 18 is discharged through a shoot 29. The apparatus may be operated automatically through a pneumatic system, Fig. 3 (not shown). In another embodiment, Fig. 5, punches 90, 89 coact respectively with a fixed die 93 and a die 94 which ends the perforating stroke of punch 89 and is then lowered by means of a piston and cylinder assembly 97. The die 94 is supported in raised position by a reciprocable wedge 101. Blanked elements 191 are ejected by an air supply at 98. The punches need not be coaxial as long as the projection on the workpiece of the cutting edge of the punch which operates first is at least partially located within the projection on the workpiece of the cutting edge of the punch which operates second.
Patent GB-1323418-A (GB)
Title: Wall and ceiling constructions
IPC: E04B9/30
Filed: 1969-08-29
Abstract: 1323418 Tensioned cladding IMPERIAL CHEMICAL INDUSTRIES Ltd 13 Aug 1970 [29 Aug 1969] 43076/69 Heading E1W A wall or ceiling construction comprises a tensioned flexible membrane 1 of a fabric comprising at least 20% of thermoplastic filaments bonded together. The thermoplastics may be polyamides, polymers and copolymers of polyesters or of olefines e.g. nylon or polypropylene. The membrane may be coated with a fire retardant or may incorporate same. The membrane may be secured to the building structure by means of battens 7, may be porous or non porous and may have radiant heating systems or diffused lighting arrangements concealed behind it. Mineral fibre and insulating glass fibre quilt may be concealed behind the membrane to provide sound and heat insulation. The membrane surface may be needle punched to produce fibre tufts on the surface to absorb sound.
Patent GB-1326302-A (GB)
Title: Process for producing yeasts with increased methionine content
IPC: C12N1/28
Filed: 1971-09-06
Abstract: 1326302 Yeast ASAHI KASEI KOGYO K K 6 Sept 1971 41457/71 Heading C6F Yeast cells of relatively large e.g. 1À5% by weight, methionine content are produced by aerobically culturing in a hydrocarbon-containing medium, a hydrocarbon assimilating Candida yeast having resistance to ethionine and recovering the resulting yeast cells. The ethionine resistant yeast employed is preferably one exhibiting a degree of growth when cultured for 24 hours in a medium containing 5 mg/ ml of ethionine at least 60% of that attained with the ethionine-free medium. Examples are directed to the cultivation of ethionine resistant Candida petrophilum, Candida rugosa and Candida tropicalis upon n-paraffin having a boiling point of 200-370‹C.
Patent GB-1326981-A (GB)
Title: Wheel rolling mill
IPC: B21H1/04
Filed: 1971-04-21
Abstract: 1326981 Rolling wheels URALSKY ZAVOD TYAZHELOGO MASHINOSTROENIA IMENI S ORDZHONIKIDZE 21 April 1971 10376/71 Heading B8M A rolling mill for rolling a wheel 7 includes inclined upper and lower motor-driven rolls 10 and 11, a pair of master rolls 5 and 6 (Fig. 2, in plan) mounted on a horizontally movable carriage 2, and a further pair of independently movable rolls 20 and 21. The carriage is movable towards and away from the wheel by two separate hydraulic cylinders. The roll 5 is driven by a motor and reduction gearing mounted on the carriage, whereas the roll 6 may be freely rotatably. The rolls 20 and 21 are movable horizontally by independent slides 18 and 19. Before a wheel blank is moved from an initial position I (Fig. 2) to a rolling position II, the roll 10 is lifted upwardly and the rolls 5, 6, 20 and 21 retracted. The rolls are moved inwardly for the rolling operation, and are again retracted to allow shifting of the finished wheel to position III.
Patent GB-1330645-A (GB)
Title: Covered stagging
IPC: E04G3/30
Filed: 1970-09-21
Abstract: 1330645 Staging W C COOMBS 21 Sept 1970 [19 Sept 1969] 46408/69 Addition to 1223905 Heading E1S Staging as claimed in the parent specification is modified by the addition of a roof section, e.g. 4, the substitution of at least one floor section e.g. 8 of a minimum of two, and by the limitation that the outer end hanger members, e.g. 6, the rear side section and the roof of the modified staging are closed to provide weather protection. The rear side section, e.g. 14, can be formed from a stressed sheet, or from a rigid open framework such as 12 covered with a loose flexible sheet, preferably suspended from the roof. The components are preferably transparent or translucent, e.g. sheet coverings are of nylon or polyethylene, and the roofing section may be flat, corrugated or ribbed, and preferably slopes to the rear. In the. embodiment shown, translucent sheets 15 are rivetted together and supported on a metal frame 16, and the end hanger members comprise shaped sheets having means 22 and 24 to attach and guide a supporting cable.
Patent GB-1336744-A (GB)
Title: Substituted 2-amino-5-phenyl-3h-1,4-benzodazepine derivatives
IPC: C07D487/04
Filed: 1970-11-16
Abstract: 1336744 Substituted 2-amino-5-phenyl-3H- 1,4-benzodiazepine derivatives TAKEDA YAKUHIN KOGYO KK 16 Nov 1970 [15 Nov 1969] 32303/73 Divided out of 1336743 Heading C2C Novel compounds of the Formulµ IV and V wherein R is alkyl, aryl or amlkyl in which the aromatic ring of the aryl or aralkyl group is unsubstituted or substituted by one or more C 1-3  alkyl, C 2-4  alkenyl, C 1-3  alkoxy, C 2-7  acylamino, halo or nitro; R<SP>1</SP> is hydrogen, C 1-6  alkyl, R 1  is C 1-3  alkyl; the rings A and/or B are unsubstituted or substituted by one or more halogen, nitro, trifluoromethyl, alkyl or alkoxy and the nitrogen at the 4-position is optionally linked to an oxygen atom may be prepared by reacting an amine II: with an ortho ester R-C(OR 1 ) 3  to form a compound IV and optionally reacting this product with ammonia to form a compound V and after each step, for products carrying an N-oxide optionally deoxygenating IV or V. Pharmaceutical compositions of IV and V show muscle relaxant, anti-convulsant, tranquillizing and sleep-inducing activity when administered orally or parenterally with the usual excipients.
Patent GB-1339860-A (GB)
Title: Pallets for gas cylinders
IPC: B65D19/00
Filed: 1971-04-19
Abstract: 1339860 Pallets for cylinders BRITISH OXYGEN CO Ltd 19 April 1971 [16 Feb 1970] 43734/72 Divided out of 1335711 Heading B8H A pallet for supporting cylinders comprises a floor 24, back frame 20, arms 22 and a foot 28 which engages the platform of a vehicle on which the pallet is mounted for transportation, a cylinder clamp, Fig. 4, being mounted on the arms 22 which comprises a chain 40 which is connected at one end to a fixed anchor lug 34 and at the other end to the end of a member 42 which is movably supported by a slide 43 in a housing 44. On depressing a handle 56 a compression spring 48 is compressed and moves the member 42 to the left in Fig. 4 thus bringing the chain into tighter engagement with the cylinders mounted on the pallet, thus firmly clamping the cylinders on the pallet, movement of the handle 56 upwardly releasing the said clamp. When mounted on the platform of a vehicle a recess 32 in the pallet is engaged by projections (10), Figs. 1, 2 (not shown), from the said platform.
Patent GB-1343385-A (GB)
Title: Heated spray unit
IPC: B05B7/16
Filed: 1972-08-10
Abstract: 1343385 Nebulizer spray units STILECRAFT MFRS INC 10 Aug 1972 37339/72 Heading AST [Also in Division B2] A heated nebulizer spray unit comprises a liquid container 10 having a closure 12 to which are attached a spray producing apparatus 16 including an aspirator tube 47 immersible in the liquid, and an elongate heater element 55 disposed in contact with an axial length of the aspirator tube for heat conduction therebetween. The spray producing apparatus comprises a plug 20 having a passageway 40 receiving oxygen under pressure at its upper end 41 from a gas inlet assembly 13. At its lower end the passageway communicates with a mixing chamber 33 into which the liquid, e.g. water, is drawn via tubes 46, 47, opening 45 and an annular liquid chamber 34. The gas-liquid outlet from the mixing chamber is provided by a circular orifice 44 in alignment with passageway 40. A baffle 52 is located below orifice 44. The humidified oxygen is discharged from the spray unit through outlet 14. The heater element 55 is clamped to a cranked portion 48 of the aspirator tube 47 by a spring clip 67 which is preferably of metal. The temperature of the element is controlled from a switch 59 and a temperature-responsive finger 60 projecting into the container is provided. A safety valve 15 is provided on the closure.