baber/WOPTO huggingface dataset:
Patent GB-1361135-A (GB)
Title: Corrosion resistant composition for metal surfaces and method of treating metal surfaces
IPC: C23C22/37
Filed: 1972-08-22
Abstract: 1361135 Chromating compositions HEATBATH CORP 22 Aug 1972 [23 Aug 1971] 38992/72 Heading C7U A chromating composition comprises a hexavalent chromium compound (0À5 to 10 g/l) a water soluble inorganic fluorine (0À1 to 13À0 g/l) and a rare earth metal salt (50 mgs to 5À0 g/l). The rare earth may be Ce, Yt, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Lu, and Th. HNO 3  or K, Na or Fe substrates may be added. The rare earth metal salt may be a chloride, fluoride, nitrate, acetate, propionate or carbonate. The fluoride may be hydrogen fluoride, hydrofluoric acid, sodium or potassium fluoride, sodium and potassium fluosilicate, fluosilicic acid, sodium bifluoride, fluoboric acid, sodium or potassium fluorborates, fluotitanates or fluozirconates. The pH may be 0À7 to 2À5, and it may be adjusted by alkali metal hydroxides or carbonates. The metal to be chromated may be Al, Zn, Cd, Mg.
Patent GB-1436459-A (GB)
Title: Method and apparatus for the purification of water
IPC: C02F9/00
Filed: 1973-08-20
Abstract: 1436459 Treating wool wash water A DEWAVRIN FILS & CIE 20 Aug 1973 [24 Aug 1972] 39247/73 Heading C5C [Also in Division B1] Wool washing water from washing and rinsing tanks 4-14 and draining tanks 18 is purified in two parallel circuits, each comprising a filter 32, 40 with rotating brushes; a hydrocyclone 34, 42 and a centrifuge 36, 44, oil being drawn off at 38, 46 and water being returned to the washing tanks while mud from each stage is   passed via tank 48 to a decanter 50 and a further circuit 56, 58, 60 similar to the first t@ from which more oil is recovered. Mud from the further circuit is recycled to tank 48 and the water fraction is distilled in evaporation 66 and recycled to the rinsing tanks. Distillation residue is centrifuged at 72 to obtain further oil. Mud from draining tanks 18 and washing tanks 4, 6 is delivered directly to tank 48.
Patent GB-952661-A (GB)
Title: Static frequency changer and a method of operating the same
IPC: H02M5/00
Filed: 1961-11-02
Abstract: 952,661. Frequency changing. MASCHINENFABRIK OERLIKON. Nov. 2, 1961 [Nov. 11, 1960], No. 39295/61. Heading H2F. A frequency changing arrangement interconnecting a high-frequency network I and a low-frequency network II comprises a transformer 1 whose secondary winding 1<SP>1</SP> feeds a bridge of four controllable rectifying elements 2, 3, 4, 5, whose output terminals are connected through a reactor 8, the centre point of this reactor and the centre point of the winding 1<SP>1</SP> being connected through a winding 9 of a lowfrequency transformer connected to the network 2. The rectifying elements may be gridcontrolled rectifiers or controllable semi-conductor elements. In operation the elements are controlled in dependence on signals derived from both frequency networks through a control set 7. In changing from high to low frequency for example, rectifiers 2 and 3 fire alternately for a given number of half cycles after which the rectifiers 4, 5 take over for an equal number of half cycles, see Fig. 8. Low frequency commutation takes place in a high frequency half cycle, and for this to occur the rectifier element 3 does not take over as it should do (shown dotted) but element 2 continues to conduct. Part way through the half cycle rectifier 4 is rendered conductive and this suppresses the conduction of element 2. From then on elements 4 and 5 conduct for the next low frequency half-period. Power may be transferred in either direction between the networks I and II. A polyphase arrangement supplying a motor is disclosed (Fig. 2, not shown).
Patent GB-1322253-A (GB)
Title: Voltage and temperature stabilized monostable circuits
IPC: H03K3/284
Filed: 1970-08-14
Abstract: 1322253 Monostable circuits MOTOROLA Inc 14 Aug 1970 [17 Sept 1969] 39306/70 Heading H3T In a monostable circuit comprising a first transistor 20, a charging path including a resistor 35, a capacitor 34 and a switch 41, 42, the switch and the base emitter circuit of 20 have the same voltage temperature characteristics and the above components are so connected that when the switch 41, 42 is closed, the back-bias applied to capacitor 34 renders transistor 20 non- conducting and 34 charges up via 35 until transistor 20 is once again forward biased to conduct. The voltage Vx across the switch 41, 42 when closed is equal to the voltage VT across the base emitter circuit of 20 including the collector emitter path of a second transistor 21 so that the operation of the circuit is substantially independent of supply voltage or temperature variations. In the absence of any input signals, transistor 20 is conducting and has a low collector voltage and hence input transistors 27, 26 remain in the non-conductive state enabling further transistors 30, 31, 33 to be in the conductive state. When an input pulse appears transistor 27 is rendered conductive and transistors 30, 31, 33 become non-conductive. At the same time the switch transistor 41 is rendered conductive thus turning off 20. As input transistor 26 is rendered conductive at this stage, the charging of the capacitor 34 and hence the operation of the circuit is unaffected by further input pulses till an output pulse is obtained. For maintaining VT constant in the steady and transient states, the transistor 21 is made to have a variable impedance.
Patent GB-1350710-A (GB)
Title: Ureas and thioureas
IPC: C07C239/00
Filed: 1972-08-23
Abstract: 1350710 Ureas and thioureas MEDIZINSKA AKADEMIA 23 Aug 1972 [23 Aug 1971] 39336/72 Heading C2C Novel compounds (I) where R<SP>1</SP> is optionally substituted alkyl, alkenyl or aralkyl, R<SP>2</SP> is optionally substituted alkyl, alkenyl, cycloalkyl, aralkyl, alkaryl, aryl or heterocyclyl, R<SP>3</SP> is O or S, X is H, Cl or SO 2 NH 2  and Y is H or Br, are made by interacting (II) and R<SP>2</SP>NH 2 . Pharmaceutical preparations having antiviral action contain (I) as active ingredient. Administration is orally or parenterally.
Patent GB-1096230-A (GB)
Title: Improvements in or relating to fastenings
Inventor: MITCHELL JOHN ROTHWELL
IPC: B64D17/52
Filed: 1965-09-16
Abstract: 1,096,230. Parachutes. G. Q. PARACHUTE CO. Ltd. July 20, 1966 [Sept. 16, 1965], No. 39646/65. Heading B7G. [Also in Division E2] A fastening comprises a frame 12, a clip 11 which is mounted on said frame and to which a load to be released is attachable and a slidable bracket 13 which in use is arranged to slide relative to said frame to force the said clip from the said frame and release the said load from the frame. One use of the fastening which is described is for releasing from a parachutist, the covering in which a parachute is packed, the covering being released when the parachute has been deployed and constituting the load attached to the clip 11, the bracket 13 in such use being attached to a riser 31 of a parachute harness. In the construction shown the frame 12 has a pair of substantially parallel side members 14 and 15 which are joined by a top member 16 and a bottom V-shaped member 17, the bottom member preventing release of the bracket from the frame. The bracket 13 has sides 19 and 20 connected by a front member 21 and a cranked back member 22, the sides 19 and 20 being able to slide freely on the frame side members 14 and 15, and the cranked back member being bent so that it can slide between the side members 14 and 15. One side 19 of the bracket 13 carries a plate 23 which is attached to the side 19 by a rivet 24; the plate 23 is provided with a hole 33. The clip 11 has a bent over upper end portion which terminates in a lip 27 and has an extended portion 30 carrying wings 28, 29. The bent over end portion normally grips the top member 16 of the frame and the wings 28, 29 grip the plate 23 and the side member 14 of the frame 12 respectively. The wing 28 is drilled at 25 and a shear pin 32 passes through the hole 25, through the hole 33 in the plate and through a hole 18 in the side member 15 of the frame in which it is a press fit. The riser is attached to the cranked member 22 of the bracket 13. When the parachute attached to the riser 31 is deployed a force is applied to the riser which is sufficient to shear the pin 32 and this frees the bracket from the frame 12 and from the clip 11 so that the riser 31 can pull the bracket 13 towards the top member 16 of the frame 12; as the bracket 13 nears the top member 16 the cranked member 22 presses on the lip 27 of the clip 11 and forces the clip off the top member 16 so that the clip drops away from the frame 12 taking the parachute covering with it. In a modification a second plate 23 and a second shear pin 32 is provided so that there is one shear pin in each side member of the frame.
Patent GB-1364700-A (GB)
Title: Phosphonic acid ester derivatives and their use as flame proofing agents
IPC: C07F9/40
Filed: 1971-08-25
Abstract: 1364700 Derivatives of urethanoalkyl phosphonic acid esters FARBWERKE HOECHST AG 25 Aug 1971 [29 Aug 1970] 39846/71 Addition to 1311906 Heading C2P [Also in Division D1] Novel compounds of the general formula wherein each of R, R<SP>1</SP> and R<SP>11</SP> are alkyl, preferably C 1 -C 4  alkyl, and Y is H or a methylol group, are obtained by reacting a compound of the formula with formaldehyde. The products are useful as flame-proofing agents for cellulosic fibrous materials. The compounds (II) may be obtained by reacting a compound with phosgene to form and then treating the latter with ammonia, or by reacting III with chlorosulphonyl isocyanate and then hydrolysing the main reaction product.
Patent GB-1098143-A (GB)
Title: Improvements in or relating to method and apparatus for producing knit pile fabric
IPC: D04B1/02
Filed: 1964-12-11
Abstract: A pile fabric is knitted on a circular knitting machine by feeding a roving at a variable rate to a carding unit from which the fibres are subsequently transferred to the needles of the machine to be incorporated in a base fabric.  The subject matter of this Specification is substantially the same as that described in Specification 1,098,142, but the claims differ.
Patent GB-1183524-A (GB)
Title: Hydrocarbon Separation Process
Inventor: GOLDUP ALAN
IPC: C07C7/152
Filed: 1966-09-08
Abstract: 1,183,524. Separating hydrocarbons. BRITISH PETROLEUM CO. Ltd. 25 April, 1967 [8 Sept., 1966], No. 40186/66. Heading C5E. Various hydrocarbon mixtures are separated by preferential complex formation in the vapour or liquid phase with a compound selected from tris - (o - phenylenedioxy) - cyclotriphosphazene, tris - (o - phenylenediamino) - cyclotriphosphazene and tris - (2,3 - naphthyldioxy)- cyclotriphosphazene. The mixture to be separated may comprise (1) two or more aliphatic hydrocarbons having the same carbon number and degree of saturation but different degrees of branching, the less or least branched component being preferentially complexed; (2) two or more components of different carbon number, the mixture being either all cyclic or all non- cyclic, the highest carbon number component being preferentially complexed; or (3) cis- and trans-isomers, the trans-isomer being preferentially complexed. The complexing agent may be used in the free state, or on a support, suitable supports being ground firebrick, diatomaceous earth, silica gel, alumina or porous glass, the support being preferably silanized. The feed may be diluted by an inert gas or liquid, and the subsequent desorption of the sorbed components may be effected by displacement with another sorbate, by elution with an inert gas or liquid, by reducing the ambient pressure, or by raising the temperature. A purging stage may be interposed between the sorption and desorption steps. Typical feeds include n-heptane /n-hexane / n-pentane, cis-heptene-2 / cishexene - 2, 2,3 - pentadiene / 3 - methyl - 1,2- butadiene, trans - hexene - 2 / cis - hexene - 2, cis - hexene - 2 / 2 - methylpentene - 1, and ethylcyclohexane / methylcyclohexane, the first named component being preferentially complexed in each case.
Patent GB-1460340-A (GB)
Title: Modular furniture unit
IPC: A47B91/00
Filed: 1974-09-16
Abstract: 1460340 Cabinets; stands; furniture frames and joints LONGATO ARREDAMENTI SpA 16 Sept 1974 [21 Sept 1973] 40202/74 Headings A4B and A4H A furniture article such as a wardrobe, bookcase, stand, comprises a rectangular base frame formed of opposed stringers (2), 3 and cross-pieces 4 having end-portions 5 with pins (6) force-fitted in holes (7) in the stringers, a pair of side walls 13 each having a pair of bottom recesses 13' each receiving and securing a support element or adjustable foot 15, the feet 15 being fixed to the crosspieces 4, a rear wall 25 connected to one stringer 3 and 6 the side walls 13, a base panel (9) resting on fillets 8 secured to the stringers, and a top panel (28) resting on brackets (27) secured to walls 13. Each foot has an upper portion having flanges (17) screwed to wall 13, and a lower adjustable portion 18 carrying a threaded stud 19 which engages in a threaded bush (20) in the upper portion. Screws 24 pass through bores 11 in the cross-piece 4 and foot 15, and are threaded into bosses 23 in a finishing plate 21. Rear wall 25 has a lower crossshaped fillet 10' received in a recess 10 in stringer 3, and wall 25 is secured to walls 13 by brackets (26) and screws. Further brackets screwed to walls 13 may support panels (29) to define compartments. Holes 12 in cross-pieces 4 may receive adjustable feet. The cross-pieces 4 may comprise plastics material.
Patent GB-1433754-A (GB)
Title: Control system for reciprocating machine
IPC: F15C4/00
Filed: 1972-09-01
Abstract: 1433754 Fluidic control circuits  CIBA-GEIGY AG 3 Sept 1973 [1 Sept 1972]  40527/72 Heading F1P A working piston 2 is caused to reciprocate in a cylinder 1 by a control piston 5 which is linked to the piston 2 for reciprocation in a cylinder 4 provided with control ports 9, 10, 11, 12 connected to the fluidic circuit shown. Pressure fluid is supplied to the cylinder 1 from a source 3 and to the cylinder 4 from a source 7. As shown in Fig. 1 fluid is supplied through a line 33 to drive the piston 2 out. When port 9 is vented nothing happens in the circuit but when port 10 is vented a vent valve 30 is closed and a vacuum valve 31 opens to apply vacuum to a device to be operated. When port 11 is vented valves 30, 31 return to their original condition and when port 12 is vented pressure fluid is supplied through a line 32 to retract the piston 2. When the piston is fully retracted the cycle begins again. Valves 30, 31 are only changed over whilst the piston is being extended. Fig. 2, (not shown), illustrates an embodiment in which a singlelocking piston is spring-returned and performs both working and control functions.
Patent GB-1437487-A (GB)
Title: Acoustic imaging and image deflection systems
IPC: A61B8/00
Filed: 1973-08-30
Abstract: 1437487 Acoustic lenses; ultrasonic devices STANFORD RESEARCH INSTITUTE 30 Aug 1973 [25 April 1973] 40896/73 Headings H4J and H4X An acoustic imaging and image deflection system for scanning a focused image across a stationary linear array of transducers (not shown) without lateral or rotational displacement comprises a pair of rotatable acoustic wedges which are rotated in opposite directions to cause the image to scan back and forth across the transducer array. In a first arrangement, Fig. 1, the wedges 14 are situated between the lens elements 10, 12 of the acoustic lens disclosed in (Application No. 38416/73) the wedges being of the same material as the lens elements, e.g. polystyrene. A motor 42 drives the wedges via a gear mechanism fully described in the Specification. In a second embodiment, Fig. 3, the wedges are incorporated in the lens elements as surfaces 118, 120 and the lens elements are rotated by a drive mechanism identical to that of the above embodiment. The arrangement may be used for ultrasonic imaging of organs, e.g. a human heart and the linear array of transducers may be as disclosed in Specification 1,437,486 (Application No. 38977/73).
Patent GB-895530-A (GB)
Title: Improvements in or relating to voltage regulators
Inventor: HENMAN CECIL BOURNE
IPC: G05F1/24
Filed: 1959-12-04
Abstract: 895,530. Voltage regulating arrangements. BRENTFORD TRANSFORMERS Ltd. Dec. 4, 1959, No. 41290/59. Addition to 851,004. Class 38 (4). In an arrangement as disclosed in the parent Specification wherein a transformer having primary windings Pla, P1b each having one winding end connected to one contact C1a, C1b of the double contact voltage regulator VR1, and the other winding end connected to opposite ends of the regulator, a switch SW1 is provided to reverse the sense of connection of the applied voltage to double the voltage range. The switch operates at substantially zero voltage and the regulator may be arranged to provide a small voltage beyond zero position to reduce the number of switch operations about this position when the arrangement is employed in automatic apparatus. Three phase star and delta arrangements are described.
Patent GB-1032045-A (GB)
Title: A device for applying inks to the printing roller of rotary fabric printing machines
IPC: B41F31/04
Filed: 1963-10-21
Abstract: 1,032,045. Printing machines. ELITEX, SDRUZENI PODNIKU TEXTILNIHO STROJIRENSTVI. Oct. 21, 1963 [Oct. 20, 1962], No. 41434/63. Heading B6C. Ink is applied to the printing cylinder 5, Fig. 1, of a fabric-printing machine by a nozzle 2 the mouth 12 of which can be adjusted in size as regards its length and its width. The nozzle is formed of sheet metal and is connected at its ends to blocks 8, Fig. 3 (not shown), rotatable in brackets 3 and securable in any required angular position by a screw 9. The brackets 3 are slidably mounted on the frame 1 so as to be adjustable towards or away from the cylinder 5 by screw mechanism 6, 7. On the upper side of the mouth 12 is an angle strip 13 which causes a reserve of ink 28 to accumulate between the mouth and the cylinder, and from which the cylinder picks up ink. The lower edge of the mouth 12 is provided with a protective rubber ledge 14. To adjust the width of the mouth 12, a number of open-ring clamps 15 are provided each having screws 16 at its ends bearing against the nozzle, so that adjustment of the screws alters the width of the mouth. For length-adjustment of the mouth 12, an axially movable insert 17, Fig. 3, with a rubber packing piece 20 is provided near each end of the nozzle, the insert 17 having a threaded aperture engaged by a screwed spindle 21 rotatable in the block 8 by means of a knob 22, but axially fixed. A protective casing 24 on the insert 17 surrounds the inwardly-projecting end of the spindle 21. Ink is pumped to the nozzle through an inlet 11 and from a reservoir 25 into which excess ink flows.
Patent GB-859678-A (GB)
Title: Improvements relating to mats
Inventor: MENDLE JULIUS
IPC: A47G23/03
Filed: 1958-12-23
Abstract: 859,678. Table mats and doyleys. MENDLE BROS. Ltd. Sept. 9, 1959 [Dec. 23, 1958], No. 41582/58. Class 128 A table mat or doyley 1 moulded or otherwise formed from synthetic plastic material is marginally formed with a series of studs 2 and a series of holes 3 which enable it to be coupled together with the holes and studs of a like mat to produce a mat structure of any desired pattern or size. The studs have domed heads formed integral with the mat and circular projections which increase in diameter towards their outer end; the holes are of a smaller diameter than the stud projections.
Patent GB-966106-A (GB)
Title: Improvements in or relating to flexible couplings
IPC: F16D3/12
Filed: 1960-12-02
Abstract: 966,106. Universal joints. AEON PRODUCTS (LONDON) Ltd. Dec. 2, 1960 [Dec. 4, 1959], No. 41634/60. Headings F2C and F2U. A universal joint which permits several hundred degrees relative rotation between driving and driven shafts 5, 6 to prevent the transmission of shocks therebetween comprises a flexible sleeve 3 connected to one or both of the shafts 5, 6 by means which convert part of the torque into an axial thrust which compresses the sleeve 3. As shown, the sleeve 3 is fast with nuts 8, 8<SP>1</SP> engaging screw-threads 9, 9<SP>1</SP> on the shafts 6, 5 respectively. Stops 11, 12; 11<SP>1</SP>, 12<SP>1</SP> limit the axial movement of the nuts 8, 81. The screw-and-nut means may be replaced by a ball spline; a flange, Fig. 3 (not shown), fast with the sleeve having an inwardly projecting pin engaging a helical slot in the shaft; a resilient sleeve, Fig. 4 (not shown), between two flanges respectively fast with the shaft and sleeve; or by an equivalent linkage system. In Figs. 4, 6 and 8 (not shown), the screw-and-nut means 9, 10 or an equivalent system is provided between the sleeve 3 and one of the shafts 5, 6 only the other shaft being rigidly connected to the sleeve. In Figs. 5 and 6 (not shown) a casing surrounds the sleeve 3 and centrifugal masses are attached to the sleeve to assist the latter to expand radially during axial compression. In Fig. 7, flexible sleeves 3 on each shaft 5, 6 carry centrifugal weights 16 and are braced between screw-thread 9, 9<SP>1</SP> and stops 19, 18. On rotation of the shaft 5 in one direction, the flexible sleeve 3 expands to engage the housing 15 to rotate the latter and engagement between the sleeve 3 and conical part of the housing produces a leftward axial thrust on the housing. The Specification states that this rotation and thrust on the housing causes the bearing 17 to transmit torque to the stop 19 and shaft 6 whereupon the other sleeve 3 expands into engagement with the housing.
Patent GB-934786-A (GB)
Title: Regenerated cellulose fibres and water-laid webs made therewith
IPC: D21H13/08
Filed: 1959-12-08
Abstract: Regenerated cellulose fibres are treated so that they fibrillate when mixed with water by treating them with a dilute aqueous solution of a highly ionizable mineral acid under such conditions of acid concentration, temperature and time as to hydrolyse partially the cellulose of the fibres until its "average basic D.P." has been reduced to between 20 and 75% of the average basic D.P. of the cellulose of the original regenerated cellulose fibres without substantially reducing the weight of the fibres by partial solution. The acids may be hydrochloric or sulphuric, and a catalyst such as ferric chloride added, and the hydrolysis carried out under pressure. Temperatures of 95 DEG C. or above may be employed.  The fibres may be from 2 mm. to 3/4 inch in length and may be blended with natural or synthetic paper-making fibres and converted into paper by known methods.
Patent GB-1239799-A (GB)
Title: Electromagnetic launder for conveying molten metals
IPC: B22D39/00
Filed: 1968-09-03
Abstract: 1,239,799. Furnace launders. AEG-ELOTHERM G.m.b.H. 3 Sept., 1968 [19 April, 1968], No. 41799/68. Heading F4B. [Also in Division H2] An upwardly sloping electromagnetic launder 2 discharging a holding or melting vessel 1 has the final section near the last pole pitch 6 of the inductor 5 levelled off towards the horizontal. This may be achieved by tapering off the thickness of the launder refractory lining (Fig. 2).