baber/WOPTO huggingface dataset:
Patent GB-1360555-A (GB)
Title: Removing dialkyl sulphates from an alkylation reaction effluent
IPC: C07C2/62
Filed: 1972-07-21
Abstract: 1360555 Alkylation of hydrocarbons TEXACO DEVELOPMENT CORP 21 July 1972 [5 Aug 1971] 34126/72 Heading C5E An iso-paraffin is alkylated with an olefin hydrocarbon in the presence of sulphuric acid to produce alkylated hydrocarbons in a plurality of reactors 11, 19, 25 each having an associated acid settler 9, 21, 27, wherein a hydrocarbon phase containing alkyl sulphate from each stage is withdrawn at 14, 22 and 28 and a combined hydrocarbon phase 15 is obtained by combining all of the phases or all of the phases except the first, spent acid is withdrawn from the last stage at 29, a portion of the sulphuric acid from each settler is recycled to its associated reactor via 10, 23, 24, in each of the stages except the last, another portion of the acid is transferred via 16 and 23 to the next subsequent stage, the combined hydrocarbon phases 15 are contacted in mixer 23 with a sulphuric acid containing stream 32 preferably from 1st stage settler 9 as 30, fresh sulphuric acid is introduced into the first stage or into the stream 30 from that stage and the sulphuric acid stream from the mixer 33 is recycled to one of the stages (e.g. via 37). In an alternative embodiment the sulphuric acid containing stream 32 is a slip stream containing a portion of the hydrocarbon/sulphuric acid emulsion formed in the first stage reactor 11. The iso-paraffin is iso-butane, iso-pentane, iso-hexane or mixtures thereof. The olefin is a propene, butene, pentene or a hexene isomer or mixtures thereof.
Patent GB-733765-A (GB)
Title: Improvements in or relating to voltage-responsive electric switching systems
IPC: G05B1/02
Filed: 1953-12-08
Abstract: 733,765. Voltage-responsive switching systems; battery charging systems. SORVIK, R. Dec. 8, 1953, No. 34133/53. Class 38 (4). To ensure positive action of the relays in a voltage-responsive switching system comprising relays A, B connected across a battery or other variable voltage source E and each controlled by contacts of the other relay of the pair, the operation of one or both of the relays upon the attainment of a given voltage limit of the source either reduces to zero the excitation of the relay, or increases its excitation to a maximum value. In the battery charging system shown, when the battery reaches an upper voltage limit relay B, which is energized over resistor R2 and contacts a2, responds, its contact b1 then shorting out R2 to ensure positive hold-in of the relay. Closure of contact b2 applies full voltage to relay A, which promptly responds, then holds in over resistor R and its own contacts a1 and disconnects the battery from its charging source S at contact a3. Relay B drops out due to opening of contacts a2, thereby opening the shortcircuit on R at contacts b2. On the battery voltage falling to a lower limit, relay A drops out, breaking its own circuit at a1 to cause positive action, restoring the energizing circuit of relay B at contacts a2 and closing a3 to effect recharging of the battery. Several other arrangements are described.
Patent GB-777370-A (GB)
Title: An improved machine for finishing the teeth of gear wheels
Inventor: GARNER PERCY
IPC: B23F19/06
Filed: 1954-11-25
Abstract: In a gear-shaving machine (see Group XXII) the cutting fluid passes through a filter having a recess into which a permanent magnet projects.  When a valve is operated to reverse the fluid flow to flush out the filter, the magnet is withdrawn to release the metal chips.
Patent GB-191268-A (GB)
Title: Improvements in or relating to driving gear for motor driven vehicles
IPC: F16H37/08
Filed: 1921-12-19
Abstract: 191,268. Withers, J. S., (Perfecto Gear Differential Co.). Dec. 19, 1921. Variable-speed epicyclic gearing.-Two-speed epicyclic gearing of the kind described in Specification 172,503, is combined with a non-epicyclic gear train whereby a reverse and a lower forward speed are obtained through driving the sun-wheel of the epicyclic train in a reverse direction to that of the driving ring-gear. The original epicyclic train comprises the ring-gear 12, planet-pinions 11 carried on pins 10 fixed to the differential casing 7, and a sun-wheel 22. The sun-wheel is fixed on a sliding sleeve 23 carrying a gear-wheel 25, and two speeds are obtained by sliding the sleeve until (a) the sun-wheel engages with teeth 27 on the planet-carrier and so locks the train for a direct drive, and (b) the gear-wheel 25 engages fixed teeth 26 and locks the sun-wheel for a slow forward speed. According to the present invention, the driving gear member 13 carries a second toothed ring 31 which is always engaged by a gear-wheel 32 sliding on a stationary shaft 34. For a reverse drive the sleeve 23 is moved to the position shown, and the gear-wheel 32 is brought into engagement with the gear-wheel 25, which is then driven in the opposite direction to the driving member 13. As the gear-wheel 25 is smaller than the sun-wheel 22, the latter is driven at a. greater peripheral speed than that of the ring- gear 12 and in the opposite direction, so that the planet-carrier is given a reversed drive. For addition low forward speed the gear-wheel 32 is moved to the left until a pinion 35 integral therewith gears with a wheel 36 on the sleeve 23 and drives the sun-wheel 22 also in the reverse-direction but at a slower peripheral speed than that of the ring-gear 12.
Patent GB-423062-A (GB)
Title: Process for the production of cellulose acetate soluble in acetone
IPC: C08B3/22
Filed: 1933-12-05
Abstract: In a process for the production of acetone soluble cellulose acetate from fibrous or precipitated cellulose triacetate, particularly cellulose triacetate produced according to Specification 381,991, the triacetate is treated with a 20--75 per cent aqueous solution of pyridine which swells but does not dissolve the triacetate.  The ripening process is carried out at a temperature less than 150 DEG C. and preferably between 25 DEG  C. and 100 DEG  C.  In a specific example, 1 part of fibrous or precipitated cellulose triacetate is swollen and hydrolized by heating it for about 8 hours at 60--80 DEG C. in 12 parts of aqueous pyridine of 50 per cent strength and is separated, washed, stabilized, and dried. Specification 402,692 also is referred to.
Patent GB-1198335-A (GB)
Title: Polycarbonate Stabilizers
Inventor: RAWLINGS HERBERT L
IPC: C08K5/527
Filed: 1968-07-18
Abstract: 1,198,335. Polycarbonate stabilizer. MOBAY CHEMICAL CO. 18 July, 1968 [20 July, 1967], No. 34366/68. Heading C3R.  Polycarbonates are stabilized with a 5,5- dimethyl - 1,3,2 - dioxaphosphorinane, preferably of formula where X is H or an optionally substituted alkyl, cycloalkyl or aryl group. The substituents may be halo, nitro, alkoxy, cycloalkoxy, carboalkoxy, dialkylamino, mercapto, phosphonyl, akyl or cycloalkyl groups. Exhaustive lists of specified stabilizers are given. The polycarbonate may also contain dyes, pigments or fillers (examples are given). The stabilizer may be added to the finished polymer, to the melt or to the starting materials. In the examples the polycarbonate is prepared from 4,41-dihydroxyphenyl-2,2-propane, p-t. -butyl phenol and phosgene and is mixed with phenylneopentyl phosphite or neopentyl phosphite.
Patent GB-285401-A (GB)
Title: Improvements in or relating to composite springs
IPC: F16F3/06
Filed: 1927-12-19
Abstract: 285,401. Ring Springs. Ltd., (Assignees of Ringfelder Ges.). Feb. 15, 1927, [Convention date]. Metallic springs.-Composite springs adapted to resist. axial compression and of the kind having an inner series of compression rings 3 and an outer coacting series of tension springs 2 or similarly coacting helical .elements, are constructed with the outer elements of greater cross section than the inner elements or of superior material so as to obtain the same limits of fatigue. The outer surfaces of the outer elements 2 and the inner surfaces of the inner elements 3 may have a curved generatrix cooperating with the conical engaging surfaces to give substantially constant radial ring thickness. In the case of inner and outer helical elements screwed into one another, relative tangential movement of the ends may be prevented by welding or rivetting them together.
Patent GB-1281383-A (GB)
Title: Sulphonated peptides and their production
IPC: A61K38/00
Filed: 1969-07-08
Abstract: 1281383 Sulphonated peptides E R SQUIBB & SONS Inc 8 July 1969 [18 July 1968] 34427/69 Heading C2C Novel compounds I in which R is 3<SP>1</SP>-sulpho-L-tyrosyl, L-aspartyl-3<SP>1</SP> sulpho - L - tyrosyl, L - arginyl - L - aspartyl- 3<SP>1</SP> - sulpho - L - tyrosyl, protected or unprotected L - seryl - L - aspartyl - L - arginyl- L - aspartyl - 3<SP>1</SP> - sulpho - L - tyrosyl, L - aspartyl - L - arginyl - L - aspartyl - 31 - sulpho- L-tyrosyl, or protected or unprotected isoleucyl- L - seryl - L - aspartyl - L - arginyl - L - aspartyl- 31 - sulpho - L - tyrosyl are prepared by conventional methods of peptide synthesis, the sulpho group being introduced by treating the peptide with concentrated sulphuric acid in the cold. Intermediates isolated are BOC-met-gly-trpmet - asp - phe - NH 2 ; H - met - gly - trp - metasp - phe - NH 2 ; BOC - arg(NO 2 ) - asp(OB 2 )- tyr - NHNHCBO; H - arg(NO 2 ) - asp(OB 2 )- tyr - NHNHCBO.CF 3 COOH; BOC - asp(OB 2 )- arg(NO 2 ) - asp(OB 2 ) - tyr - NHNHCBO; BOC- asp - arg - asp - tyr - NHNH 2 ; BOC - asp - tyr- NHNH 2 ; BOC - asp - tyr - met - gly - trp - metasp - phe - NH 2 ; BOC - asp - arg - asp - tyr - metgly - trp - met - asp - phe - NH 2 ; BOC - ser(B 2 )- NHNHCBO; H - ser(B 2 ) - NHNHCBO; BOC - ile - ser(B 2 ) - NHNHCBO; BOC - ileser - NHNH 2 ; BOC - arg - asp - tyr - NHNH 2 ; and BOC - arg - asp - tyr - met - gly - trp - metasp - phe - NH 2 . These are also described in Specification 1,278,681. Pharmaceutical compositions having cholecystokinin activity comprise a compound I together with a suitable carrier or diluent for parenteral administration.
Patent GB-429935-A (GB)
Title: Improvements in or relating to hand bags
IPC: A45C13/06
Filed: 1933-12-08
Abstract: 429,935. Handbags. COVENTRY, T. M., 79, Harborne Road, Edgbaston, Birming- ham, and LIGHTNING FASTENERS, Ltd., Imperial Chemical House, Millbank, London. Dec. 8, 1933, No. 34579. [Class 133] [See also Group XXV] A handbag with a rigid hinged frame has the stringer tapes 13, 14 of a sliding-clasp fastener attached to an inner surface of the frame members 5, 6. The tapes may be riveted to the underside of the frames or, with celluloid frames, may be stuck thereto by a solvent such as acetone. Inwardly extending flanges 18 partly conceal the fastening. The ends of the stringer tapes extend below the hinges of the framo to allow free movement of the frame.
Patent GB-779438-A (GB)
Title: Improvements relating to temples for looms
IPC: D03J1/22
Filed: 1955-12-02
Abstract: 779,438. Loom temples. DRAHTEX ING, G. HANKE GES. Dec. 2, 1955 [Dec. 2, 1954], No. 34624/55. Class 142 (2). The fabric guides 1, 2, 5 of a twin-roller temple consist of bars 1, 2 integral with a flange 6 attached to a bracket 7 by bolts passing through vertical slots, and a roller 5 also vertically adjustable in a slot in the bracket. The guides may all be rollers or all be bars and all may have independent vertical adjustment.
Patent GB-295890-A (GB)
Title: Improvements in apparatus for the electrical precipitation of suspended particles from gaseous fluids
IPC: B03C3/76
Filed: 1927-12-22
Abstract: 295,890. Lodge-Cottrell, Ltd., (Metallbank und Metallurgische Ges. Akt.-Ges.). Dec. 22, 1927. Addition to 216,789. Gases and vapours, treating electrically. -In the means for vibrating the electrodes in the electrical precipitation apparatus described in the parent Specification, as modified by Specification 230,841, the membrane or diaphragm 5 is attached to a hollow member 4 which! passes through a quartz &c. insulator 2. The insulator 2 is carried by the wall 1 of the precipitating chamber, and through the hollow member 4 passes a rod 6 which is adapted to be lifted by an externally-operated cam 7 and fall upon the membrane 5. Through a plate 8 attached thereto, the membrane operates on the electrode supporting-members 10. Insulators 12, supported by the wall 1, carry members 11 to which the hollow member 4 is attached. An insulator 15 is provided in the shaft 14 by which the cam 7 is driven. The insulator 2 may be replaced by a flat cover plate of insulating-material situated in the wall 1, and the rod 6 may be vibrated by means other than a cam. Specification 246,757 also is referred to.
Patent GB-900904-A (GB)
Title: Pneumatic suspension unit for vehicles
IPC: F16F9/04
Filed: 1959-10-14
Abstract: 900,904. Air springs; maintaining road vehicles height constant. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI S.p.A. Oct. 14, 1959 [Oct. 18, 1958], No. 34800/59. Classes 108(2) and 108(3). A self-levelling pneumatic suspension unit comprises two axially aligned tubular spring members 1, 3 separated by a rigid partition 2 and joined at their outer ends to sprung and unsprung members A, B and having means 9 for selectively controlling the volume of liquid in one of said members. The upper spring member 1 contains air to act as pneumatic spring and the valve means 9, which may include a delay means, is actuated by linkage 10, 11 to maintain a constant distance between the sprung and unsprung members A and B. The pneumatic spring at least is a composite rubber-metal spring having helical convex curved ridges 5, 6 provided on the inner and outer rubber surfaces of the spring, the ridges being out of phase by half a pitch axially. A helical metal spring 8 is incorporated below the inner ridge 5 of the spring. In alternative constructions the spring members 1, 3 are of different sizes and the partition 2 is dished to accommodate one of the spring members 1 and 3 partly within the other. U.S.A. Specification 2,670,201 is referred to. Reference has been directed by the Comptroller to Specifications 734,549 and 781,896.
Patent GB-742449-A (GB)
Title: Improvements in or relating to methods of making shoes
IPC: A43D23/00
Filed: 1953-12-15
Abstract: <PICT:0742449/IV(c)/1> <PICT:0742449/IV(c)/2> In the treatment of a yarn of loosely twisted filaments with a resin to provide a base for binding material for use in footwear manufacture and particularly in a lasting machine as described in Specification 610,861, [Group VII], the yarn is immersed in a bath of resin and subjected to rapid vibration tranversely of its direction of movement therethrough.  As shown, yarn 14 is led from a spool 16 over pulley wheels 18 and 20, into a container 22, around a pulley wheel 24, through a guide loop 36 formed in a rod 38 to which a reciprocating motion is imparted by a vibrator 40, around a pulley wheel 26, through the lower loop 34 in the rod 38, and around each of the wheels 30, 42, and 44: from the container the yarn passes through a forming die 46, a drying tube 56 supplied with hot air from an electrically heated chamber 60 by a blower 58 and wherein the resin is at least partially cured, thence over a pulley 66 to a winding drum 68.  In order to increase the disturbance of the filaments and so assist the penetration of resin therebetween, the loops 36 and 34 divert the yarn from the straight paths between pulley wheels in the container; since the yarn passes for more than a complete turn around each of these wheels, "entering" and "leaving" portions 48 and 50 are pressed together by the sides 52 of the pulley groove, Fig. 7.
Patent GB-619174-A (GB)
Title: Improvements in or relating to screw bolt and like assemblies
IPC: F16B19/10
Filed: 1946-11-25
Abstract: 619,174. Bolts. ODDIE, BRADBURY, & CULL, Ltd., and TURNER, W. J. Nov. 25, 1946, No. 34855. [Class 89 (i)] Bolt, for replacing missing rivets &c., that cam be inserted from the nut side of the plates is formed hollow, and the head end is provided with a number of slots. This end is then closed in thus causing the bore to taper and the head to become small enough to pass through the hole in the plates. When the bolt is in position it is held against rotation by flats formed on the screwed end and an expander D, Fig. 3, is forced through the bore to reform the head B<1> to engage the plates. The expander is preferably inserted in the bore before the head is closed in. The other end of the bore is tapped to engage a screw. C that forces the expander through and has a plain end C<2> that prevents the bolt head from collapsing again. The expander may be integral with the screw C<1>. In a modification the bore is not tapped but has a counterbore F3, Fig. 5, and the expander G has a neck to receive a rubber &c. packing washer H and a head G<1> that fits the counterbore. The bolt is expanded by a tool K that screws on the bolt and is locked by the nut M, both being held against rotation by a handle K<1>. The expander is driven into place by a screw L the. end of which is hollowed to flange in the end of the bolt and prevent retraction of the expander.
Patent GB-194827-A (GB)
Title: Improvements in or relating to fluid controlling devices
IPC: G05D11/00
Filed: 1921-12-28
Abstract: 194,827. Ionides, A. C. Dec. 28, 1921. Fluid-actuated valves.-A valve device adapted to control the flow of fluid through two separate conduits and actuated by the pressures in the conduits has two double beat valves actuated by a movable partition, and has the weight of the moving parts balanced by a spring or other resilient device. The two double beat valves k<4>, k<5> are adjustably mounted on a common spindle l adjustably connected to a bell c adapted to work in a well formed by an inverted pan-shaped member h clamped between the sections f, g of the casing. The top of the member It and a partition h<3>, clamped between the sections e, f are shaped to conform with the top of the bell to act as stops, and are centrally perforated to permit the actuating fluids to have access to the actuating bell. The spindle is guided at m<1> and m<4> and is hooked to the supporting spring m the tension of which is adjusted by a nut m<3> engaging a screwed rod non-rotatably mounted in a cover p<1>.
Patent GB-1145259-A (GB)
Title: A method for etching curved surfaces
Inventor: HOORNSTRA CLAYTON WILFRED
IPC: C23F1/00
Filed: 1966-08-04
Abstract: 1,145,259. Etching. DOW CHEMICAL CO. 4 Aug., 1966 [4 Aug., 1965], No. 34925/66. Heading B6J. Curved plates used in the photo-engraving art (e.g. magnesium alloy plates) are etched by applying a resist image to the curved surface as a workpiece, impinging a liquid etching composition on to the surface, simultaneously rotating the workpiece about its axis of curvature while cyclically varying the angle between the said axis and the flightpath of the impinging etching composition in a repeated time cycle to provide a repeated sequence of flow in essentially all directions across each point of theworkpiece surface, continuing the rotation and cyclic motion until the required depth of etch is obtained, and rinsing the plate so etched. The cyclic motion may be effected by movement of the workpiece or of the flightpath of the etchant or of both simultaneously. In a preferred embodiment (Fig. 1) a first end 1 of a workpiece having a length L lies a given maximum vertical distance H from the second end 2 and the vertical disposition of the two ends with respect to one another is reversed twice (as shown by sequence 1-9) to restore the original distance H between the two ends while simultaneously rotating the curved surface about its axis of curvature. H may vary from 0.4 L to 1À0 L and the cycle may be repeated between 2 and 20 times per minute. Where the flightpath of the impinging etchant solution is varied the angle between its path and the axis of curvature may be cyclically varied between X and 180-X where X is between 10 and 80, and the cycle may be repeated from 0.5 to 120 times per minute. The peripheral speed of the workpiece about its axis of curvature may be between 70 and 250 feet (21 and 75 metres) per minute and the direction of rotation may be reversed between 0 and 60 times per minute.
Patent GB-1046970-A (GB)
Title: A new or improved anti-theft device
Inventor: KAY TRYNIAK EDWARD JOSEPH
IPC: E05B17/16
Filed: 1964-08-26
Abstract: 1,046,970. Obstructing key holes. LOKLOK (DEVICES) Ltd. Aug. 17, 1965 [Aug. 26, 1964], No. 34967/64. Heading E2A. An anti-theft device for preventing the insertion of a key into a lock 1 comprises at least two relatively movable members 2, 3, carried by a body 6, 13, the members 2, 3, being adapted to be inserted into a lock and at least one of such members having means for engagement with tumblers 17 or associated parts of the lock so that the device is retained within the lock, the arrangement being such that when one of the members 2, 3, is moved with respect to the other member or members the tumblers or associated parts are disengaged from the member carring the engaging means and the device may be withdrawn from the lock. As shown, in which the members 2, 3 are spring blades, the blade 2 is rigidly secured in a cap 6 of the body by a pin 4 which also passes through a slot 7 Fig. 2 (not shown) in the blade 3. The blades are each provided with equally spaced notches, which, when the blades are inserted into the lock, are engaged by the tumblers 17 to prevent withdrawal of the device. The cap 6 and thus the blade 2 is spring-loaded outwardly within a cover member 13. The device is disengaged from the lock by a two pronged key 11 which is inserted into apertures in the cap 6, full insertion of the key moving the blade 3 inwardly so that the notches thereon overlap the notches on the blade 2 and permit the device to be withdrawn. The key 11 may be replaced by a plunger separately lockable by means of a combination lock. The blades 2, 3, may have a weakened portion so that if the body 6, 13 is forcibly removed the blades remain in the lock.
Patent GB-475229-A (GB)
Title: Improvements in or relating to heating floors and like structures
IPC: F24D5/10
Filed: 1936-12-21
Abstract: 475,229. Floors. LANGLOIS, E. C. Dec. 21, 1936, No. 35062. Convention date, Dec. 19, 1935. [Class 20 (iv)] [Also in Group XIII] A hollow floor, ceiling, or the like, which is adapted to serve as a heating element, is provided with a circulation of hot air through chambers 4a formed between the two layers constituting the structure by means of parallel walls 4 having cross-channels 5. That layer of the structure which is adapted to serve as the radiating surface is formed of a material having a higher coefficient of thermal conductivity than the other layer. The floor shown in Fig. 1 is constructed of a layer of concrete 1 resting on beams 2, and supports sound- and heat-insulating bricks 3 of magnesia, mineral wool, kieselguhr, or the like. Hollow bricks 4 are arranged to form the parallel walls with cross-channels 5 connecting the chambers 4a, and these walls support the flooring of hollow bricks 6 and concrete 7. The chambers 4a are traversed by a zigzag or spiral conduit 8, Fig. 2, having lateral openings 10 through which hot air passes into each of the chambers 4a to heat the floor.