baber/WOPTO huggingface dataset:
Patent GB-1287893-A (GB)
IPC: B22D21/00
Filed: 1969-02-06
Abstract: 1287893 Casting processes and apparatus GLACIER METAL CO Ltd 5 Feb 1970 [6 Feb 1969] 6504/69 Heading B3F A molten aluminium-lead mixture 5 is fed from an electrically heated crucible 3 into one of a series of trough moulds 14 mounted on a horizontal shaft 16. The mould moves across a feed-head 9 as fluid is supplied to a piston and cylinder 17, 18. When the feed head 9 reaches the far end of the mould, a valve 12 is closed to shut off the supply of metal mixture. The shaft 16 rotates through 60 degrees to present an empty mould to the feed head 9. The empty mould travels back below the feed head 9 to become filled with the metal mixture. Coolant is supplied along the shaft 16 to cool the mould bases 15 thereby rapidly chilling the cast mixture from the mould base 15 upwards to prevent settling out of the lead. As the moulds 14 rotate and invert they deposit their cast slabs in a stack 24 below the moulds. In alternative embodiments, the crucible and feed head are movable along the axis of the mould while the mould remains stationary, or both mould and crucible are stationary and the feed head alone moves along the mould axis.
Patent GB-1290107-A (GB)
IPC: F15B15/26
Filed: 1971-04-01
Abstract: 1290107 Machine tool details J J SENDOYKAS 1 April 1971 8421/71 Heading B3B [Also in Division F1] An hydraulic or pneumatic actuator piston 58, Fig. 1, is locked at the end of its outward stroke by three headed pins 136, 138, 140, Fig. 2, which after passing through the larger diameter ends of keyhole slots 142, 144, 146 in a locking ring 100 rotatable about the axis of the actuator cylinder 18 are urged outwardly by the cam action of a bevel (154), Fig. 7 (not shown), on the smaller diameter end of each slot 142, 144, 146 with the bevelled underside (158) of each pin 136, 138, 140 when locking ring 100 is rotated anticlockwise from the position shown in Fig. 2. Thus on removal of operating fluid pressure the piston remains urged against the cylinder end 24. Rotation of ring 100 to effect locking and unlocking of piston 58 is effected by linear movement of a fluid pressure operated plunger 104 which carries a slidable bearing block 130 journalled on a pivot 132 on and movable with the ring 100. The actuator may serve to operate a workpiece clamping bar 170, Fig. 9, pivoted at 172 to a V-shaped body 166 and pivoted at 178 to the outer end of the actuator rod 60; the locking end of the actuator cylinder 18 also being pivoted to the body 166 at 174. The actuator may serve to hold a machine tool slide (190), Fig. 11 (not shown), stationary.
Patent GB-1295175-A (GB)
IPC: B29C45/03
Filed: 1970-02-20
Abstract: 1295175 Injection-blow moulding INTERNATIONAL PRESS DEVELOPMENT ESTABLISHMENT 20 Feb 1970 [1 March 1969] 8227/70 Heading B5A An injection-blow-moulding machine comprises at least one set of injection, blow and release units and a plurality of mandrels, one for each unit, on a rotating support so that they act simultaneously at all stations, each moving successively through injection, blow and release units. As shown in Figs. 1, 2, one-piece injection moulds 22, two-piece blow moulds 28, and release holes 31 are equiangularly spaced about fixed table 2, to which is connected by columns 3, 4, an upper fixed table 1. Mandrels 18 having a blowing duct 18<SP>1</SP> with a poppet valve are carried on table 6 rotating about column 5. Table 6 may be lowered by cylinders 7, 8, not fixed thereto, pistons 7<SP>1</SP>, 81 of which are fixed to table 1, and raised by cylinder 9. Bush 14 on table 6 has vertical slots (15, Fig. 4, not shown) and connecting diagonal slots (16) engaging a fixed pawl (17, Fig. 5, not shown) to rotate the table near the top of its ascent. The table 6 is accurately indexed by engagement of studs 6<SP>1</SP> with slot 4<SP>11</SP> in sleeve 4<SP>1</SP> of column 4. The injection apparatus may be raised to engage moulds 22 by piston 36 and screw impellers 26 may be vertically reciprocated by Cylinders 27. A stripper ring 21 around mandrel 18 and on fork (32, Fig. 5) is lowered by cylinder (33) to eject blown articles (34) through holes 31. In the embodiment shown, at any lowered position of table 6, two mandrels are in the injection moulds, two in the blow moulds and two at the release stations. The table is then raised clear of the moulds, indexed and lowered at the next position.
Patent GB-1296352-A (GB)
IPC: C08G65/322
Filed: 1968-06-25
Abstract: 1296352 Polyoxyethylated quaternary derivatives UNILEVER Ltd 24 Sept 1969 [25 June 1968 12 July 1968] 17274/72 and 17275/72 Divided out of 1296351 Heading C3R [Also in Division C2] The invention comprises polyethyleneoxide quaternary ammonium compounds of the formula wherein X denotes an anion and (a) R 1  denotes C 15 -C 18  alkyl-O-(EO) x CH 2 CHOHCH 2 - C 17 H 35  alkyl-COO-(EO) x -CH 2 CHOHCH 2 - or C 17 H 35  alkyl-CONH-(EO) x -CH 2 CHOHCH 2 - (wherein x is from 3 to 40); (b) R 1  denotes (wherein x or y is at least 3 and (x+y) is 4 to 40); (c) R 1  denotes  or (wherein x or y or z is at least 3 and (x+y+z) is 5 to 40); (d) R 1  denotes X-, R 2 R 3 R 4 N<SP>+</SP>-CH 2  CHOHCH 2 -O-(EO) z -CH 2 CHOHCH 2 - (wherein z is 4À5 to 34); (e) R 1  denotes X<SP>-</SP>, R 2 R 3 R 4 N<SP>+</SP>- CH 2 CHOHCH 2 -O-(EO) m -(CH.CH 3 -CH 2 O) y -(EO) n -CH 2 CHOHCH 2 - (wherein y is about 31, m or n is at least 3 and (m+n) is from 4 to 50); and (f) R 1  denotes (EO) x -O-CH 2 CH 2 -, R 2  denotes C 17 H 35 -COOCH 2 CH 2 - or (EO) y -O-CH 2 -CH 2 -, R 3  denotes C 17 H 35 -COOCH 2 CH 2 - or (EO) z -O-CH 2 CH 2 - (wherein x or y or z is at least 2, and (x+y+z) is 3 to 40); and wherein R 2 , R 3  and R 4  in (a), (b), (c), (d) and (e), and R 4  in (f) denote straight-chain, branched or cyclic alkyl, aryl, alkaryl, aralkyl or heterocyclic groups which may be further substituted except for anionic groups, or two or more of such symbols may together with the quaternary nitrogen atom form a heterocyclic ring or part of the repeating unit of a polyethyleneimine backbone. The anion X may represent chloride, bromide, iodide, sulphate, acetate or phosphate anions. The above compounds may be prepared by reacting a suitable polyethylene oxide compound with epichlorohydrin and subsequently with a tertiary amine. Alternatively, a suitable amine-ethylene oxide condensate may be quaternized at the nitrogen atom. Uses.-For detergent bars and as lime soap scum dispersants.
Patent GB-1297152-A (GB)
IPC: C22C14/00
Filed: 1969-09-24
Abstract: 1297152 Titanium base alloy IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 8 Sept 1970 [24 Sept 1969] 47049/69 Heading C7A A titanium base alloy comprises:- Al 2À5-6À5%#}Al + Sn/3 = 4À5-6À5% Sn 0-12%  Hf 0À5-5% Si 0À05-0À5% Zr 2-7% and Mo 0-2% the balance, apart from impurities, being Ti. The alloys may be solution treated at 1050C for 1 hour, air cooled, aged at 550C for 24 hours and then air cooled. USE:-Aircraft engine components.
Patent GB-1301226-A (GB)
IPC: C07D209/14
Filed: 1971-01-18
Abstract: 1301226 1 - Amino - 3 - aminoalkyl - 3- phenylindoline derivatives PARKE DAVIS & CO 18 Jan 1971 [19 Jan 1970] 2413/71 Heading C2C Novel compounds of Formula I and to pharmaceutically-acceptable acid-addition salts thereof; where each of R 1  and R 2 , which may be the same or different, is an alkyl radical having not more than 3 carbon atoms or R 1  and R 2  are combined and together with the nitrogen atom to which they are attached represent 1-pyrrolidinyl, piperidino, hexahydro- 1H - azepin - 1 - yl, 3 - methylpiperidino, or 2,6 - dimethylpiperidino; R 3  is methyl or ethyl; A represents ethylene, propylene, or trimethylene; Y represents methylene, ethylene, or ethylidene; and Ar represents phenyl, monosubstituted phenyl, in which the substituent is fluorine, chlorine, bromine, trifluoromethyl, methyl, methoxy, ethoxy, methylthio, ethylthio, or n-propylthio, dichlorophenyl, chlorofluorophenyl, chloromethoxyphenyl, dimethoxyphenyl, 2-furyl, or 2-thienyl are prepared by reduction of a compound of Formula II optionally followed by resolution and/or salification. Intermediates of Formula II are prepared by reaction of the appropriate haloalkylamine with the alkali metal salt of a compound of Formula III: 1 - [(2 - Chloro - 3 - methoxybenzyl) methylamino]-3-phenyloxindole is prepared by reaction of α-chlorodiphenylacetylchloride and 1-(2- chloro-3-methoxybenzyl)-1 -methylhydrazine obtained by reaction of methylhydrazine and 2- chloro-3-methoxybenzyl chloride. Pharmaceutical compositions in conventional forms for oral administration and having antidearrheal effects comprise an above novel compound or salt and a carrier or diluent.
Patent GB-1301840-A (GB)
IPC: H03L7/23
Filed: 1969-03-13
Abstract: 1301840 Frequency synthesis PLESSEY CO Ltd 11 March 1970 [13 March 1969] 13331/69 Heading H3A A frequency generator comprises two synthesizers the outputs of which are mixed at 5. The generator output from mixer 5 can be varied, by adjustment of variable dividers n and m, in steps equal to the difference between the reference frequencies fr1 and fr2 of the synthesizers. Small step adjustment is thereby obtained without the need for high stability oscillators. The synthesizers may have a common frequency standard fr with dividers 2 and 4 to produce the reference frequencies, or indegendent reference frequency generators may used. The adjustment steps may be made even smaller if side step programming is used in one or both synthesizers. To obtain sequential steps of adjustment in the output frequency the dividers n and m are stepped in conjunction according to a schedule which may be embodied by a mechanical ganging or by a logic circuit. When used as a local oscillator the adjustment steps of the generator correspond to the spacing of received channels.
Patent GB-1305609-A (GB)
IPC: G02B5/28
Filed: 1970-03-20
Abstract: 1305609 Colour temperature filters PILKINGTON PERKIN-ELMER Ltd 9 June 1971 [20 March 1970] 13475/70 Heading G2J An optical filter comprises a substrate coated with four superimposed layers of high and low refractive indices alternately, the layers having a thickness ratio 0À28: 0À28: 0À25: 0À30 from inner outward. By selecting suitable refractive indices desired colour temperature shifts can be achieved.
Patent GB-1307846-A (GB)
Title: Guide system for restraining tubes relative to one another in  process stream heaters
IPC: F28F9/013
Filed: 1969-06-06
Abstract: 1307846 Tube supports FOSTER WHEELER Ltd 26 May 1970 [6 June 1969] 28749/69 Headings F4A and F4S  A support 60 in a heater comprises clamping bars 62 pivotably connected together near their ends to form a zig-zag lattice, having the tubes 28, 30 held by the bars between the crests of the lattice, so that longitudinal expansion of the tubes is allowable but distortion of any tube away from the axial position causes the lattice to grip nearby tubes to limit the distortion. The support may have members 68 provided at its ends to grip the end tubes, said members being connected via links 70 to the walls 72 of the heater, and supported on members (66), Fig. 1 (not shown), fixed to the tubes. The support 60 may be used in a heater having four series connected rows of pipes (24, 26, 28, 30) the support 60 being fixed to the two ends of the furnace chamber (12).
Patent GB-1315118-A (GB)
Title: Membrane for reverse osmosis
IPC: B29C65/00
Filed: 1969-06-18
Abstract: 1315118 Membranes for reverse osmosis APV Co Ltd 18 June 1970 [18 June 1969] 30918/69 Heading B1X Membranes for reverse osmosis have at least one surface discontinuity produced by overlapping portions of the membrane in the manners shown. Each portion comprises a porous substrate 6 having a semi-permeable coating 5.
Patent GB-1323689-A (GB)
Title: Flame retardant filaments
IPC: D01F2/10
Filed: 1970-01-13
Abstract: 1323689 Flame-proof viscose filaments COURTAULDS Ltd 10 Dec 1970 [13 Jan 1970] 60444/69 Heading B5B [Also in Division C3] Flame-retardant regenerated cellulose filaments are prepared by adding to a viscose spinning solution an acylic straight or branched chain halogenated alkane of general formula C n H( 2n+2-m )X m , where n is in the range 6 to 20, m is in the range 2 to 25 and 2n + 2 # m and X is Br or a mixture of Br and Cl which is predominantly bromine, and spinning the viscose into a H 2 SO 4  regeneration bath to form filaments. Preferably the spinning solution contains up to 30% by weight of the halogenated alkane which, suitably, contains between 10 and 14 carbon atoms. The spinning solution may also contain tricresylphosphate or tris(2,3-dibromopropyl) phosphate, preferably in an amount of between 5% and 10% by weight based on the weight of cellulose. Examples relate to the spinning of viscose solutions containing halogenated alkanes prepared by brominating chlorinated paraffin fractions which are predominantly C 6 -C 10 , C 12 , C 14 -C 17 , and C 18  with or without the above mentioned phosphates into H 2 SO 4  coagulation baths containing ZnSO 4  and Na 2 SO 4 .
Patent GB-1323944-A (GB)
Title: Wheel braking means for a vehicle
IPC: F16D55/224
Filed: 1970-10-29
Abstract: 1323944 Fluid-dynamic and friction brakes acting in conjunction; fluid-pressure control KNORR-BREMSE GmbH 29 Oct 1970 [29 Oct 1969] 51558/70 Heading F2E and F2F A fluid-dynamic brake 4 and a friction brake 35, 36 for a vehicle are operatively combined with a valve assembly 5 so that on braking above a certain speed the fluid-dynamic brake alone is in use, and as the speed drops, the effectiveness of the fluid-dynamic brake is progressively reduced while that of the friction brake is initiated and progressively increased, the total braking torque exerted by the assembly remaining constant throughout. When the brake control valve 2 in main fluid supply line 1 is operated with the vehicle stationary or travelling only slowly, the hydrodynamic brake 4 is filled via supply line 3. Since the rotor speed is small or zero, little or no braking torque is exerted on the wheels 7. Duet 30 from the outlet of the hydrodynamic brake 4 is consequently unpressurized. Pressure from line 3 acting in first admission chamber 9 of valve 5 thereupon forces down piston 10, so that its valve pipe 13 meets and forces downwards double seal plate 27. In consequence, venting orifice 21 is cut off, and line 31 is pressurized from chamber 9 via duct 25, chamber 24, opening 23 and supply chamber 17. The disc brake 34-36 is thus applied. When control valve 2 is operated with the vehicle travelling at high speed, duct 30, after filling of hydrodynamic brake 4, is pressurized. The result is that in valve 5 the piston 10 remains at rest, and the disc brake is not operated. The torque exerted by the brake 4 remains constant until the wheel speed falls to a certain value. Thereafter, the pressure conditions in valve 5 initiated by the progressivelyfalling pressure in line 30 ensure that the disc brake is progressively applied as the hydrodynamic brake torque decays. The total braking torque now exerted on the wheels remains approximately constant and equal to the value of the torque that would be exerted by the hydrodynamic brake alone at speeds above the "certain value" mentioned above. The brakes may be operated hydraulically, in which case orifice 21 may be connected to the fluid supply tank, or pneumatically.
Patent GB-1325331-A (GB)
Title: Phase shifters
IPC: H01Q25/02
Filed: 1970-05-28
Abstract: 1325331 Variable phase-shifters DEFENCE SECRETARY OF STATE FOR 7 June 1971 [28 May 1970] 25769/70 Heading H1W Phase-shifting in steps of 90 degrees is realized by means of a pair of spaced reflective impedances each having two alternative values in response to control signals, the arrangement being such as to give selectively the four values Z 0 (Œ 1 Œ #2). According to theory, phase change upon reflection at a termination of normalized impedance Z is given by tan #/2 = 1/Z whereby if # = 45 degrees, Z = 1 + #2, and if # = 135, 225, 315 degrees, then Z = (-1 + #2), (1-#2), (-1-#2) respectively. Thus, taking 45 degrees as datum, the stated impedance values yield increments of 90 degrees. As shown, the impedances are realized as PIN diodes 7, 9 within respective short-circuited coaxial stubs 3, 5 arranged in series with a shortcircuited ridged wave-guide 1. The stubs are spaced apart by a distance #g/4 and shortcircuit 11 is spaced by #g/4 from stub 5. By means of a modification (not shown) of the ridge of waveguide 1 or otherwise, the impedance of the waveguide is made to change at a point halfway between the stubs such that the #g/8 section from the stub 3 to the half-way point has an impedance of Z 0 /#2, whilst the rest of the waveguide has an impedance of Z 0 . The lengths of the stubs may be chosen in accordance with well-known theory such that the impedance presented at the waveguide 1 has values Œ Z 0  for the respective forward and reverse biased states of the diodes. Now the impedance Z presented by the parallel combination of the first stub 3 and the waveguide is given by 1/Z = 1/Z 3  + 1/Z 4  where Z 3  = Œ Z 0  and Z 4  = ŒZ 0 /#2, the latter term being due to the second stub. It follows that Z = Z 0  Œ (#2 Œ 1). In a modification, the impedance of the waveguides between the stubs is Z 0  throughout and the lengths of the stubs is modified accordingly. The ridged waveguide may be replaced by a waveguide of reduced height, by a coaxial line or by a strip line. The diodes 7, 9 are held in position by inner conductors 21, 23 to which axial pressure is applied by spring clips 27, 29. The inner conductors and the clips are made from anodized aluminium.
Patent GB-1327069-A (GB)
Title: Manufacture of concrete blocks
IPC: B28B13/02
Filed: 1970-12-02
Abstract: 1327069 Hoppers K YAMASITA and Z YAMASITA 2 Dec 1970 57282/70 Heading B8S [Also in Divisions B5 and E1] A hopper comprises a storage cavity 11 (Fig 7) having a delivery aperture 15 fed by a screw 16, and a storage cavity 12 having a pair of delivery apertures 13 (Fig. 6) sandwiching the aperture 15. Material from the hopper drops into a partitioned, reciprocable frame 17 (Fig. 7) for movement to a mould 10, the frame 17 supporting a shutter 19 for closing the apertures 15, 13.
Patent GB-1334629-A (GB)
Title: Methods for drying timber
IPC: F26B21/08
Filed: 1972-06-26
Abstract: 1334629 Drying timber WESTAIR DYNAMICS Ltd 26 June 1972 29817/72 Addition to 1170627 Heading DIP [Also in Division F4] The method of drying timber of the Specification 1170627 is modified in that the air passed over and around the timber is at a temperature greater than 130‹F but not exceeding 170‹F.
Patent GB-1341983-A (GB)
Title: Production of foundry cores
IPC: B22C5/04
Filed: 1972-01-17
Abstract: 1341983 Foundry moulding machines and sand preparing apparatus BRITISH LEYLAND (AUSTIN-MORRIS) Ltd and BORDEN CHEMICAL CO (UK) Ltd 17 Jan 1972 [16 Jan 1971] 2237/71 Heading B3F [Also in Division B1] Foundry cores are prepared by forming a sand/resin mix and a sand/catalyst mix separately, mixing the two mixes in a final mixing chamber to form a cold-setting moulding composition and blowing the final mixture from the final mixing chamber into a core-box. The final mixing chamber is then purged of moulding composition by applying a gas blast thereto. As shown in Fig. 3 sand from a hopper 1 is separately mixed with resin and catalyst in horizontal mixers 4, 5. A tilting hopper 22 measures the two mixes into a final mixing chamber 8. Valves 25, 26 close the openings to the chamber 8 and a blast of gas through a pipe 31 forces moulding composition from the chamber 8 along a flexible tube 12 to a blowhead 10 and from thence into a core-box 11. The mixing chamber 8 is then purged by supplying compressed gas and either moving the corebox 11 away, to blow excess moulding composition into a shoot (not shown) or by moving the blow head 10 on rails (not shown) to a position clear of the core box 11 and above a shoot (Fig. 5, not shown) to blow excess moulding composition away. In Fig. 4 the two mixes from mixers 4, 5 are conveyed by tubes 34, 25 to the final mixing chamber 8. After mix delivery, the tubes 34, 35 are tilted away from the chamber 8 and their openings are sealed by lids 36, 37 operated by fluid motors 38, 39. The final moulding composition is blown from chamber 8 through a funnel extension 8a to a blowhead 10 and thence to a core-box 11. After core-blowing, the core-box 11 is moved away from the blowhead 10 and replaced by a movable shoot (30, Fig. 8, not shown) or a movable manifold (43, Fig. 9, not shown) co-operating with a fixed shoot (30), so that excess moulding composition may be blown away from the chamber 8.
Patent GB-1345146-A (GB)
Title: Reactive dyestuffs
IPC: C09B62/04
Filed: 1970-09-08
Abstract: 1345146 Reactive dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 31 Aug 1971 [8 Sept 1970] 42964/70 Heading C4P The invention comprises reactive dyestuffs of the general formula wherein R is H or alkyl, DN(R)- is the radical of a water soluble dyestuff and R<SP>1</SP> is H or an alkyl, cycloalkyl, aralkyl or aryl group which may be substituted by substituents free from H atoms capable of reacting with cyanuric halides. D is preferably a radical of a mono- or dis-azo optionally metallized, dioxazine, nitro, azo-stibbene or phthalocyanine dye. They are prepared by (a) reacting 2 moles of a compound DNHR with a mole of a compound N,N-bis- (dichlorotriazinyl (-amino-R<SP>1</SP> where D 1  R and R<SP>1</SP> are as above or (b) diazotization and coupling wherein either the amine or coupling component contains a group of the formula and one mole of the amine or coupling component containing the above group is coupled with 2 moles of the other reactant. The dyes give yellow, orange, red, blue, scarlet, turquoise, brown and black shades on wool, nylon and especially cellulose.
Patent GB-1349612-A (GB)
Title: Child proof cap for medicine bottles
IPC: B65D50/04
Filed: 1972-06-09
Abstract: 1349612 Safety caps SUNBEAM PLASTICS CORP 9 June 1972 27164/72 Heading B8T A child-proof cap comprises an inner closure 10 provided with a rim 20 and an outer driver 11, provided with a lip 24 snap -fitted over the rim 20, the cap being screwed on to a bottle neck by engaging the teeth 25 of the driver 11 in notches 19 formed in the upstanding rim 18 of the closure, and the cap being unscrewed from the bottle neck 16 by deforming a portion of the skirt 23 of the driver 11 into engagement with abutments in or on the outer surface of the closure skirt 13. The portions 27 of the skirt 23 may be defined by pairs of slots (as shown) or by a single slot, and the abutments by recesses 21 formed in the rim 20; alternatively, the skirt portions may comprise axially-extending projections on the upper part of the inner surface of the skirt 23, and the abutments by recesses in the outer wall of the skirt 13. In the latter case, the projections are longer than the recesses so that they can only be interengaged when the driver is raised.