baber/WOPTO huggingface dataset:
Patent GB-772924-A (GB)
Title: Method for the preparation of tertiary-alkyl-phenols
Inventor: BRYNER FRED
IPC: C07C37/14
Filed: 1955-08-16
Abstract: Tertiary-alkyl-phenols are prepared by reacting an iso-olefin with a phenol having a hydrogen atom ortho and/or para to the hydroxyl group and consisting of a hydroxylated aromatic hydrocarbon or a hydroxylated monohalo-aromatic hydrocarbon, in the presence of from 0.01 to 0.02 per cent of an iron chloride and from 0.075 per cent to 0.25 per cent of hydrogen chloride or hydrogen bromide, based on the weight of phenol.  The iso-olefins are defined as olefins of formula <FORM:0772924/IV(b)/1> wherein each R is a saturated aliphatic hydrocarbon radical and R1 may be such a radical or hydrogen. Preferably 1 mol. of olefin is reacted with 1.5 to 3 mols. of phenol. The reaction may be carried out by stirring the iron chloride and hydrogen chloride or bromide in the molten phenol (phenols which are solid at operating temperatures may be dissolved in an inert solvent) heating the mixture to between 55 DEG  and 150 DEG  C. and adding the iso-olefin slowly with continued agitation, heating further to complete the reaction, cooling, neutralizing and fractionally distilling to separate the tertiary-alkylphenol.  The process described gives largely the para-isomer if the para-position is open for substitution, otherwise the ortho-isomer is formed. Specified phenols are phenol, cresols, thymol, p-tert.-butylphenol, o-chlorophenol, 4-bromo - 2 - methyl - 5 - isopropylphenol, catechol, resorcinol, pyrogallol, a -naphthol, 1-chloro-2-naphthol, o- and p-phenylphenol, and a -anthrol. Specified olefins are isobutylene, 2-methyl-1- or -2-butene, 3-methyl-2-pentene, 4-methyl- or -ethyl-3-hexene, 3-methyl-2-hexene, 2-ethyl-1-hexene and diisobutylene.  In examples: (1) phenol (2 mols.) and isobutylene (1 mol.) were reacted as described above using ferric chloride and hydrogen chloride as catalysts and p-tert.-butylphenol obtained; (2) the following phenols and olefins were reacted as in (1), isobutylene and o-chlorophenol or o-cresol or o-phenylphenol or m-cresol and 2-methyl-2-methyl-2-butene or diisobutylene and phenol; (3) comparative reactions using isobutylene and phenol were carried out replacing the iron chloride with aluminium chloride ot using hydrogen chloride or ferric chloride alone.
Patent GB-974177-A (GB)
Title: Liquid dispensing apparatus
Inventor: LYNCH PATRICK HENRY
IPC: G01F11/44
Filed: 1962-06-20
Abstract: 974,177. Valves. LYNCH DEVELOPMENTS Ltd. June 19, 1963 [June 20, 1962], No. 23710/62. Heading F2V. [Also in Division B8] A three-way conical plug valve 13 for use in a liquid dispersing apparatus (see Division B8) is provided with a bearing sleeve 14 of P.T.F.E. and with a threaded extension for a nut 27 so that by rotating the nut the plug may be drawn axially into sealing contact with its seat. An actuating handle 17 is secured to the plug by means of a cap 22. In a modification, the plug is pressed into contact with its seat by means of a threaded ring engaging with a correspondingly threaded member secured to the valve housing. Alternatively, the plug may be spring-loaded into contact with its seat.
Patent GB-1067368-A (GB)
Title: Improvements in or relating to focussing means for electromagnetic wave energy
IPC: H01Q15/02
Filed: 1964-06-09
Abstract: 1,067,368. Lenses. WESTERN ELECTRIC CO. Inc. June 9, 1964 [June 12, 1963], No. 23787/64. Addition to 1,028, 264. Heading G2J. Laser beams used in communication systems are focused by three element lens systems, each element consisting of a substantially sinusoidally shaped sheet or S lens. As shown the first S lens, 31, has its generator g1, i.e. an imaginary line moving in the surface so as to be always parallel to itself, parallel to the x axis, lens 32 has its generator g2 inclined at an angle a to the y axis and generator g3 of lens 33 is inclined at -alpha to the same axis, alpha being the Brewster angle. In a modification, Fig. 4 (not shown), the third lens (43) has its generator (g3) inclined at angle alpha to the y axis but the lens has its sinusoidal undulation 180 out of phase with that of the second lens (42). In each case the first lens produces a line focus and the second and third lenses acting together produce from this a point focus.
Patent GB-1204551-A (GB)
Title: Improvements in or relating to vibrating screens
Inventor: WOODS GEORGE EDWIN
IPC: B07B1/52
Filed: 1968-05-18
Abstract: 1,204,551. Cleaning vibrating screens. FREDERICK PARKER Ltd. 16 May, 1969 [18 May, 1968], No, 23796/68. Heading B2H. A vibrating screen assembly comprises a rigid frame 6, 7 mounted above the screen and having depending cleaning elements 8 mounted thereon and contacting the screen, and driving means to cause the frame to traverse the screen repeatedly. The cleaning elements consist of brushes or strips of rubber. The frame is supported at each corner by pivotal attachment 11 to an endless belt, or chain 9 running round sprockets 10. As the sprockets rotate, the brushes sweep the screen surface and are then lifted clear and returned to the starting position. The chains are partially supported by rails 12. The screens may be mounted in tiers (1, 2) (Fig. 3, not shown), and the screen surface may be convex.
Patent GB-771784-A (GB)
Title: Improved grill for air dispersal
IPC: F24F13/15
Filed: 1955-08-18
Abstract: 771,784. Ventilator grills. GENERAL MOTORS CORPORATION. Aug. 18, 1955 [Sept. 7, 1954], No. 23816/55. Class 137 A grill, e.g. for a cabinet 10 containing a refrigerator system and a blower, not shown, for discharging air therethrough comprises outlet grills 11, 12 divided by a member 19 in a rectangular frame 14 each grill 11, or 12 being composed of a set of horizontal deflector vanes 17 pivoted at 21 between the member 19 and the respective side of the frame 14, and a set of vertical deflector vanes 23 which are located behind the vanes 17. Each vertical vane 23 of the rear set has forwardly directed upper and lower legs 24, 26 which extend over the vanes 17 and have round projections 28 which pivot within holes formed in a forwardly directed flange 29 of the frame 14, the vertical axes of the projections 28 lying in a common plane with the horizontal axes 21 of the vanes 17. Each of the vanes 17 has along the side adjacent the member 19 a projection 32 which fits into a hole in a vertical link 33 which is common to the vanes and ensures their movement in unison. A spring member 34 on the divider member 19 presses against the projections 32 to maintain the vanes 17 in their adjusted positions. Studs 36, projecting from tail pieces 27 on all of the vertical vanes 23 are inter-connected by a strap 37 to ensure their sumultaneous movement, lock nuts 38 being secured to certain of the studs 36. To enable either independent, or simultaneous, adjustment of both sets of vanes 17 and 23 a lever 40, having a horizontal slot 46 to receive the middle vane 17 and a vetrical end slot 47 to receive the middle vane 23, is provided with a ball 41 which is universally mounted in a socket 56 in a guide member 51 secured to the frame 14, the shaft 43 of the lever being pivoted to the middle vane 17 by means of a pin 44 which passes through the ball 41. The guide 51 has inturned ears 57 which provide sockets for rounded enlargements 58 formed on the front edges of the vanes 17 above and below the lever 40. By moving a knob 42 at the end of the lever 40 horizontally to the left or right, about the pin 44, the vanes 23 can be turned to one side, or the other, and by moving the knob 42 vertically the vanes 17 can be tilted according to the direction of movement. All of the vanes in both sets 17 and 23 can be simultaneously tilted, or swung, by moving the knob 42 at an angle other than vertical, or horizontal.
Patent GB-480728-A (GB)
Title: Improvements in or relating to chassis for vehicles
IPC: B62D63/08
Filed: 1936-08-31
Abstract: 480,728. Road-vehicle spring-suspensions. SCHROTER, H., and SCHROTER, K. Aug. 31, 1936, No. 23842. Convention date, Dec. 13, 1935. [Class 108 (ii)] In a vehicle having front and rear axles the latter are connected to swing or rotate bodily about a central longitudinal axis and are interconnected by a non-resilient intermediate compensating member which is also connected to the chassis in such a manner that when the axles swing or rotate relatively to one another the chassis is positively held in an intermediate position. As shown the chassis 1 is rigidly connected by members 13 to a longitudinal bearer 2 upon which the front and rear axles 3, 4 are rotatably mounted by means of sleeves 11, 12. The latter are also interconnected by a double-armed lever 8 and ball-bearing pins 9, 10, the lever also being pivoted intermediately to the bearer 2 at 7. The wheels are sprung on the axles by means of springs 5, 6 and the sleeves 11, 12 are frictionally mounted on the bearer 2 by interposed layers of fibre, asbestos, &c. The front wheels are mounted at 14 for steering purposes and are connected to a draught pole 17 by links 15, 16. Other arrangements such as gear wheels may replace the lever 8.
Patent GB-295938-A (GB)
IPC: C09C1/48
Filed: 1928-08-20
Abstract: 295,938. Fechter, A., and Burger, P. Aug. 20, 1927, [Convention date]. Carbon; hydrogen.-In apparatus for decomposing hydrocarbons by explosion into soot and hydrogen in a chamber 1, the valves 6, 15, 25, controlling respectively the admission of the hydrocarbons through a pipe 4, the admission of the scavenging agent, e.g. hydrogen, through a pipe 13, and the evacuation of the carbon and hydrogen produced through pipes 29, and the ignition mechanism are mechanically interconnected and operated so that the operation is repeated automatically. The valves 6, 15 are opened by the rotation of cams 9, 18 fixed on a rotating rod 10 which also carries a cam 20 which presses on a rod 21 and thus operates a lever 23 connected to the stem 24 of the valve 25. The valves are normally held closed by springs 12, 12a and 31. Correlation of the action of the ignition device 34 is obtained by means of a cam 19.
Patent GB-316948-A (GB)
Title: Process for purifying coke oven gas with a view to the separation of constituents thereof by low temperature cooling
IPC: C01B3/56
Filed: 1929-08-06
Abstract: 316,948. Ges. f³r Linde's Eismaschinen Akt.-Ges. Aug. 6, 1928, [Convention date]. Purifying processes; purifier waste, revivifying. -The removal of nitrogen oxides, cyclic diolefines, and ketones from coke oven gas prior to low temperature cooling is effected by treatment with a substance which adsorbs these impurities and also promotes a catalytic; action between them. Nitro-hydrocarbons are first formed and these, decompose into carbon, carbon dioxide, water, and nitrogen. Active carbon and silica gel are suitable adsorbents; they may be impregnated with metals or metal salts. Regeneration of the adsorbents is effected by heating in nitrogen. The coke oven gas undergoes a preliminary removal of higher benzene hydrocarbons, hydrogen sulphide, carbon dioxide, and water.
Patent GB-1307733-A (GB)
Title: Device for production of three-handled canisters
IPC: B29C49/20
Filed: 1970-05-19
Abstract: 1307733 Blow-moulding handled canisters R V HUNERSDORFF NACHF-FRIEDRICH BUHRER SEN 19 May 1970 [28 May 1969] 24157/70 Heading B5A [Also in Division B8] Canisters having three handles are formed by extrusion-blow moulding, the outer handles being pre-formed. As shown in Fig. 1, the blowmould comprises main mould halves 1, 2, end parts 7, 8 and wedges 5. The outer, curved handles 4a are pre-formed by injection-moulding and located in grooves 3 of parts 1, 2 and held therein by ball 10 and spring 9. Parts 1, 2, 7, 8, then close on the extrudate, parts 7, 8 defining the central handle 6b and flash R. Wedges 5 are then inserted and the canister body 6a blow-moulded.
Patent GB-901877-A (GB)
Title: Red monoazo-dyestuffs of the benzene-azo-naphthalene series and process for their manufacture
IPC: C09B62/51
Filed: 1960-07-11
Abstract: 1-(31- or 41-amino-benzoylamino)-benzene-3-b -hydroxyethyl-sulphones may be prepared by reacting a m- or p-nitrobenzoyl chloride with 1-aminobenzene-3-b -hydroxy - ethyl - sulphone and reducing the nitro group in the condensation product.ALSO:The invention comprises monoazo dyestuffs of formula <FORM:0901877/IV (b)/1> in which the azo group stands in m- or p-position to the NH-CO group.  They are prepared by diazotising 1-(31- or 41-aminobenzoylamino)- benzene- 3-b -hydroxyethylsulphone in the form of its acid sulphuric acid ester and coupling with 1-acetylamino-8-naphthol-3 : 6-disulphonic acid. The dyestuffs give red shades on cellulose which may be fixed by treatment with alkali.  Examples describe the preparation and use of the dyestuffs.
Patent GB-1142667-A (GB)
Title: Polyamine curing agents for isocyanato-terminated pre-polymer
Inventor: HOESCHELE GUENTHER KURT
IPC: C08G18/00
Filed: 1967-05-24
Abstract: 1,142,667. Aniline 2 - chloroaniline formaldehyde condensates. E. I. DU PONT DE NEMOURS & CO. 24 May, 1967 [25 May, 1966; 19 April, 1967], No. 24223/67. Heading C2C. [Also in Division C3] Aniline (0À1-4 moles) and 2-chloroaniline (1 mole) are condensed with formaldehyde in presence of mineral acid, the mole ratios total amine: formaldehyde and mineral acid: total amine being 1À4-1À9: 1 and 0À5-2À0:1, respectively. The products appear to be mixtures of 4,4<SP>1</SP> - diaminodiphenylmethane, its 3-chloro and 3,3<SP>1</SP>-dichloro derivatives, and related triamines and higher polyamines, and are used as curing agents for polyurethanes (see Division C3).
Patent GB-1040612-A (GB)
Title: Process and apparatus for treating biaxially stretched plastic film webs
IPC: B29C55/16
Filed: 1963-06-18
Abstract: 1,040,612. Films. KALLE A.G. June 18, 1963 [June 20, 1962], No. 24277/63. Heading B5B. Thermoplastic films which have been simultaneously stretched in the longitudinal and transverse directions in a stretching frame by means of clips which grip the edges of the film are further held by the clips which are caused to continue to travel along rails disposed parallel or substantially parallel with respect to one another, and immediately after stretching, the film is cooled below the stretching temperature, and then, without further longitudinal or transverse stretching, is heated to a temperature which is above the stretching temperature but below the melting temperature of the film, which is then cooled below the stretching temperature, after which the clips are caused to release the edges of the film web. At least one further heat-setting treatment, preferably at a temperature below that at which the first heat-setting was performed, may be carried out and the film then cooled again before finally causing the clips to release the edges of the web. During heat-setting the travelling speed of the film may be regulated by transport means which act on areas of the film not in contact with the clips while the film is at a temperature below the stretching temperature and the clips may each be independently pulled by the film along the rails. If desired, during heat-setting the length of the film may be reduced to a minor degree by reducing the transport speed of the film after the heat-setting below its speed before the heat-setting, and/or the width of the film may be reduced to a minor degree by guiding the clips on converging rails. Apparatus as shown comprises two rows of clips for holding the edges of the film (not shown), an endless travelling guide for each row of clips (indicated generally at 5, 5), the clips in each row being independent and therefore capable of relative movement varying their distances from one another, rails 4 for positioning the clips while they are holding the film and nip rollers, e.g. 1, 2<SP>1</SP>, 2<SP>11</SP>, located in cool zones bounding heating zones, thus forming, in a biaxial stretching zone 7, a stretching frame in which the rails diverge, and a heat-setting zone 8, 9 in which the rails are disposed substantially parallel to one another, heating means (e.g. hot air) being supplied to the heating zone 9 and cooling means, e.g. cold air to the cooling zone 8. Additional, correspondingly disposed, heating means 11, cooling means 10, 12, and nip rollers 3 may be provided for further heat-setting treatments. The process is especially suitable for films of materials having with increasing temperature an increasing tendency to form crystalline structures, e.g. polyethylene terphthalate, polyamides, polycarbonates and isotactic polyolefins, but may also be used for the heat-setting of stretched films of poly vinyl chloride and other plastic materials.
Patent GB-302389-A (GB)
Title: Improvements in and relating to electric arc rectifier systems
IPC: H02M1/20
Filed: 1927-09-15
Abstract: 302,389. British Thomson-Houston Co., Ltd., and Read, J. C. Sept. 15, 1927. Vapour apparatus, arrangements of.-In a transformer-fed rectifier system in which the secondary windings are divided into star-connected groups 4, 5, 6, and 7, 8, 9 connected by an interphase transformer 10 to which the negative side of the load circuit 11 is connected, the sharp rise of voltage as no load condition is approached is avoided by closing, when the load falls below a certain small value, switches 12 .. 15 that short-circuit the interphase transformer and introduce extra turns into the primary windings 1, 2, 3 of the main transformer.
Patent GB-837131-A (GB)
Title: Improvements relating to pulverising plant and an improved method of pulverising solid material
Inventor: ZOLLER RONALD ERNEST
IPC: B02C17/00
Filed: 1957-08-01
Abstract: 837,131. Pulverizing plant. BABCOCK & WILCOX Ltd. July 29, 1958 [Aug. 1, 1957], No. 24394/57. Class 59 Pulverizing plant having a plurality of pulverizing mills of the kind including a rotary casing containing a charge of free pulverizing elements, a common power device with a power output suitable for driving the mill casings at speeds within intermediate parts of their speed ranges in which the driving power decreases with increase in speed but insufficient simultaneously to drive the casings at the lowest speeds in the said speed ranges and coupling means between the power device and the casings enabling the speeds of the casings to be separately varied and enabling the power device to raise the speed of the casing of one mill to or near the highest value in its said speed range while the casing of a second mill is stationary or driven at a low speed and then, while the power device continues to rotate the casing of the first mill at that speed to raise the speed of the casing of the second mill to a speed within its said speed range. The plant shown in Fig. 1 comprises two similar tube mills I, II each having a casing 3 provided with a gear wheel 11 engaging a pinion 13. Driving means for the two mills comprise a double ended induction type electric motor 55 having two output shafts 57, 58. Output shaft 57 is connected to the driving shaft 59 of a pump unit 61 which is connected to a motor unit 83 the output shaft 87 of which carries the pinion 13 of mill I. The output shaft 58 is connected by a similar hydraulic transmission drive comprising a pump unit 235 and a motor unit 237 arranged to drive the pinion 13 associated with mill II. The pump and motor units are similar to those described in Specification 832,404. Each mill incorporates a speed control unit 111 similar to that described in Specification 832,404. With the arrangement shown in Fig. 1, the motor 55 need have a power output only as large as the sum of the powers consumed by the two mills running simultaneously at their desired operating speeds on the negative slope of their torque/speed curves.
Patent GB-1420986-A (GB)
Title: Mould for moulding foamed plastics
IPC: B29C33/56
Filed: 1973-05-23
Abstract: 1420986 Non-stick moulds PAMPUS KG 23 May 1973 [30 May 1972 23 Oct 1972] 24537/73 Heading B5A A mould 1, 2 for moulding foamed polyurethane comprises a mould cavity defined by a re-usable shell lining which is formed of a non- stick fluorine-containing plastics material and which has a wall-thickness of at least 1À5 mm. The shell lining may be formed of fluorinated ethylene-propylene (F.E.P.), polytetrafluoroethylene (P.T.F.E.) or an injection mouldable perfluoralkoxide. The shell lining may be formed from two or more parts, e.g. 4, 5. As shown the mould 12 is used for injection moulding a conically shaped bush 3, the shell parts 4, 5 being stripped from the bush when cold.
Patent GB-417413-A (GB)
Title: Improvements in and relating to domestic fires and to simulating the appearance of burning or glowing fuel therein
IPC: F24C7/00
Filed: 1933-09-06
Abstract: 417,413. Imitation fires. BELL & CO., Ltd., A., and BELL, N, M., Kingswell Street, Northampton. Sept. 6, 1933, No. 24648. [Class 126.] "Fuel" for imitation fires comprises a foundation 20 of hard-setting cement or plaster into the upper surface of which, while still plastic, pieces 21 of real fuel, e.g. coal, coke, or wood, have been set, the foundation being formed with holes for the passage of light from a lamp 22. In the construction shown, the fuel is formed of a dished base part fitting the bottom 12 of an ordinary open fireplace 14 and a cap 30 which is formed of a reinforced cement or plaster foundation 31 with insets 32 of real fuel ; the cap is moulded separately from the dished base part on a bed of sand piled over the latter after it is placed in position. The pieces of fuel 21, 32 may be partly burnt before being set in position and may be tinted or coloured to present a glowing or flaming appearance ; natural ash, cinders, coal dust, or the like may be applied to the surface of the foundation between the fuel insets. The lamp 22 is preferably pink or red while the underside of the cap 30 and the dished part 24 of the base are similarly coloured.
Patent GB-792219-A (GB)
Title: Air-filtering apparatus
Inventor: BROCHETTI RAYMOND EDWARD
IPC: F24F13/28
Filed: 1956-08-13
Abstract: 792,219. Filtering gases. MINE SAFETY APPLIANCES CO. Aug. 13, 1956, No. 24673/56. Class 8(2). An air filter comprises a vertical cylindrical drum 2, Fig. 5, having a lower dust-laden air inlet 9, and an upper clean air outlet 13 between which is disposed a downwardly tapered filter bag 16 having its wide upper open end sealed against the inner wall of the drum 2 and its narrow end telescoped up and down within the bag to form concentric filtering walls 19 the upper folds of which are supported by concentric rings 21, Fig. 6, suspended from a cross bar 24 and the lower folds are held apart by pairs of perforated metal cylindrical screens 31, 32. The narrow end of the bag is folded over a pin 22 at the centre of the concentric rings 21 and the whole are held by a line of clips 27, 28 suspended from the cross bar 24. A bag shaking device comprises a rubber-sheathed post 51 projecting into the axis of the bag and connected by a rod 35 parallel to the bar 24 to a shaker lever 45 pivoted about a pin 46 external of the drum 2. The filter is preceded by a settling chamber 1 having a partly cleaned air outlet 8.
Patent GB-712053-A (GB)
Title: Accelerators for curing diisocyanate-modified polyesters
IPC: C08G18/42
Filed: 1951-10-23
Abstract: An elastomeric diisocyanate modified polyester or polyesteramide is cured by heating it with a polyisocyanate in presence of a tertiary amine containing no reactive hydrogen atoms and in which there is not more than one aryl radical directly attached to the amine nitrogen atom.  Specified amines are (1) trialkylamines (2) dialkylmonoarylamines (3) hetrocyclic nitrogen compounds or (4) Schiff's bases obtained by condensing aromatic amines with aliphatic or aromatic aldehydes.  The polyesters and polyesteramides are preferably those of Specifications 694,978, 694,982, 696,449 and 696,450.  In examples p  a polyester derived from adipic acid, ethylene glycol and propylene glycol of acid number 3.5 and hydroxyl number 58.6 is reacted with 4, 41- diphenyl diisocyanate or 2, 4- tolylene diisocyanate at 120-130 DEG C. for 10-15 minutes and the elastomers baked at 120-130 DEG C. for eight hours in a tray.  The elastomer, 4, 41- diphenylene diisocyanate and an accelerator which is quinoline, triethylamine or the Schiff's base from butyraldehyde and aniline are then mixed on a rubber mill and aged at room temperature or at 149 DEG C.