baber/WOPTO huggingface dataset:
Patent GB-605515-A (GB)
Title: Catalytic process and apparatus
IPC: C10G11/18
Filed: 1945-12-27
Abstract: <PICT:0605515/III/1> In a catalytic process involving treatment of a reactant in a vessel 1 with finely-divided contact material which is continuously regenerated by means of a stream of gas in a separate vessel 2, fine material is removed from the gas leaving the regenerator in a separate zone, e.g. an electrostatic precipitator 3, and suspended in a stream of liquid feed to the process.  The regenerator may operate under super-atmospheric pressure, and the exit gases after passage through a cooler 5, may be reduced to atmospheric pressure by a valve or orifice plate 13. Separated fine material passes down pipe 16 and is transported by part of the regeneration gases from lines 17 or 19 to a scrubber 4 to which part of the liquid reactant (e.g. a less volatile fraction) is fed at 21. The invention may also be applied to a system in which the contact material is withdrawn with the gases passing overhead from the reactor and regenerator, Fig. 2 (not shown).  In particular, reference is made to the conversion or treatment of hydrocarbon oils by processes involving hydrogenation, dehydrogenation, polymerisation, alkylation, cyclisation, isomerisation, cracking, and desulphurisation.
Patent GB-387806-A (GB)
Title: Improvements in or relating to the surface treatment of aluminium or aluminium alloys
IPC: C25D11/24
Filed: 1931-12-17
Abstract: Articles made of aluminium or of alloys containing at least 50 per cent of aluminium are coloured by producing an absorbent aluminium-oxide coating on the surface and colouring the coating by a mordanted basic dyeing compound.  The oxide coating may be produced, for instance, by applying solutions of sulphuric acid, chromic acid, sodium sulphate, sodium acid sulphate, sodium carbonate, potassium dichromate, phosphoric acid and its salts, ammonium citrate or lactate, or citric acid and its salts.  The solutions may be applied by spraying or immersion.  In an example, the article is immersed in a solution of sodium carbonate and potassium dichromate heated to boiling point.
Patent GB-961687-A (GB)
Title: Improvements in or relating to book covers
IPC: B42C7/00
Filed: 1961-09-29
Abstract: 961,687. Laminating. CONTINENTAL CAN CO. Inc. Sept. 29, 1961 [Oct. 31, 1960], No. 35035/61. Heading B5N. [Also in Division B6] A method of producing a laminated web for use in the manufacture of book covers (see Division B6), comprises the steps of providing a first web and a second web of lesser width than the first web, longitudinally slitting the second web into at least two portions, separating the second web portions and aligning their outer edges, or, the outer edges of the two outer portions, with the longitudinal edges of the first web and securing the second web portions to the first web. Three webs 21, 22, 23 are fed through a cutting station 31 where the side edges of the webs are trimmed by circular cutters. The webs 22, 23 are slit longitudinally to divide the web 22 into two parts 40, 41, and the web 23 into parts 49, 50, and a central narrow strip 51. The web parts 40, 41 and 49, 50 are moved apart by guide plates 71 and 90, to engage side plates 66 and 68, whereby the outer edges of the three webs are aligned. The webs 22, 23 are fed over gluing rollers 77, 78 and 99, 100 respectively, and the three webs other than the strip 51 passed through pressure rollers 111, 112, to secure them together. A guide member is provided on the front wall of the adhesive tank 98, comprising an upstanding yoke having a cross-bar beneath which the strip 51 passes. The webs are guided in their travel with their outer edges aligned, by guide plates 58, 62, 82 and 106, having side flanges 59, 63, 83 and 107, respectively engaging the edges of the web 21 and the web parts. The strip 51 is secured to the web 21 by presser heads 115 and 126 secured to rotatable shafts extending transversely to said strip. The heads are maintained in contact with the strip by a weighted offset arm at one end of each shaft. The lower end of each head is rounded and is recessed to receive the strip 51. The heads bear against tubular members situated beneath the webs. The laminated web is cut into strips of a book length, or multiples thereof, by a rotary cutter 137. The webs are drawn through the machine by feed rollers 132 from supply rolls, Fig. 4A (not shown). The roll of web 22 is unwound in the opposite direction to the other web rolls, so that the curvature of the web 22 counter balances the curvature of webs 21, 23 and thus the laminated web tends to lie flat.
Patent GB-1243047-A (GB)
Title: Photographic products and processes employing ring-closing compounds
IPC: G03C5/30
Filed: 1968-07-23
Abstract: 1,243,047. 3-Hydroxy-acridine, 3-hydroxyphenanthridine and intermediates therefor. INTERNATIONAL POLAROID CORP. 23 July, 1968 [24 July, 1967], No. 35135/68. Heading C2C. [Also in Divisions G2-G3] 0 -Bromophenyl-benzoquinone is hydrogenated to the corresponding hydroquinone which is etherified with NaOH and dimethyl sulphate to 2,5-dimethoxy-2<SP>1</SP>-bromo-biphenyl which is refluxed with Cu 2 (CN) 2  and pyridine in dimethylformamide, poured into aqueous HCl/FeCl 3  and extracted with toluene to give 2,5-dimethxy- 2<SP>1</SP> - cyano - biphenyl which is hydrogenated and treated with HBr to give 2-[21,5<SP>1</SP>-dimethoxyphenyl]-benzylamine hydrobromide. which is refluxed with HBr to give 2 - [2<SP>1</SP>,5<SP>1</SP> - Dihydroxyphenyl] - benzylamine hydrobromide which is oxidized by Ag+/acetic acid or 0 2 /aqueous alkali to 3-hydroxy-phenanthradine. , 2,5 - Dimethoxy - 2<SP>1</SP> - carboxy - diphenylmethane is refluxed in benzene with oxalyl chloride and an acetone solution, of the residue added to aqueous NaN 3  and the product extracted with benzene and refluxed with HBr/acetio acid to give 2, 5-dihydroxy-2<SP>1</SP>-aminodiphenylmethane hydrobromide which is oxidized by Ag<SP>+</SP>/acetic acid or 0 2 /aqueous alkali to 3- hydroxy -acridine.
Patent GB-629467-A (GB)
Title: Process for the production of salts of phenol-aldehyde condensates
IPC: C08G8/28
Filed: 1945-12-29
Abstract: Salts of dimethylol and trimethylol phenols are produced by reacting at least 2 mols. formaldehyde in aqueous solution with 1 mol. of a phenol at a temperature not exceeding 100 DEG  C. to obtain addition products, e.g. di- and trimethylol phenols or partial condensates thereof, e.g. tetra methylol diphenylol methane, in presence of a basic catalyst, stopping the reaction by addition of a weak acid, removing the water wholly or in part by distillation under vacuum, and then neutralising at least one phenol group in said condensates by heating with an equivalent proportion of base. 94 gs. phenol, 225 gs. 40 per cent formaldehyde and 2 ccm. 30 per cent NaOH solution are reacted until on acidification the product separates into layers whereon it is acidified with an organic acid.  The water is distilled off under vacuum and 40 gs. NaOH added in aqueous solution, heating being continued until a sample is found capable of unlimited dilution with water without precipitation.  In example (2) the proportions used are 8 kgs. phenol, 14 kgs. 40 per cent formaldehyde and 75 gs. NaOH, a further 4 kgs. of NaOH being added to form the phenolate.
Patent GB-401504-A (GB)
Title: Improvements in and relating to the production of pattern effects on textile fabrics
IPC: D06Q1/08
Filed: 1932-12-13
Abstract: 401,504. Finishing fabrics. BLEACHERS' ASSOCIATION, Ltd., Blackfriars House, Parsonage, Manchester, and SUTTON, G. D., Penwortham Hall, Preston. Dec. 13, 1932, No. 35260. [Class 42 (i).] Designs and crepe effects, producing.-Pattern effects are produced on fabrics composed wholly or in part of crepe yarns by subjecting the fabric to heavy compression and heat in selected areas while the crepe yarns are in an extended condition as compared with their condition in the finished fabric, the selected areas thus showing a cockled effect in the finished fabric. The fabric may be treated either before or after the yarns have been caused to undergo the shrinkage which produce the creping effect, the extended condition being obtained in the latter case by applying tension to the fabric in the warp or waft direction or both while the heat and pressure is being applied. The treatment is carried out by passing the fabric between a roller with a relief pattern and a smooth roller, the heat and pressure being thus applied by the relief parts of the roller. The process may be applied to fabrics composed of cotton or artificial silk or mixtures thereof or to non-cellulosic fabrics, and also to fabrics in which either the weft or the warp yarns or parts thereof are of non-creping yarns. When applied to fabrics made from yarns composed of delustred cellulose acetate it produces a differential lustre effect as described in Specification 303,286, [Class 42 (i), Fabrics, Finishing &c.]. Where the fabric is subjected to the creping operation before the pressure treatment it may also be dyed before such treatmant.
Patent GB-845068-A (GB)
Title: Air spring vulcanizing mold
IPC: B29D22/00
Filed: 1958-11-03
Abstract: 845,068. Moulding air springs. GENERAL TIRE &RUBBER CO. Nov. 3, 1958 [Nov. 22, 1957 ; July 30, 1958], No. 35262/58. Class 87(2). A blank b built up from fabric and rubber plies is moulded into an air spring between mould parts 10, 12 whilst fluid under pressure is supplied through an opening 22 to expand a rubber diaphragm 14 against the inside of the blank. To facilitate the placing of the blank on the diaphragm, vacuum is applied to the diaphragm to collapse it to the position shown in Fig. 3, and to prevent the diaphragm from being distorted out of shape, a ring 34 having upstanding bars 35 engages it at spaced points. In a modification, Fig. 5 (not shown), the bars 35 may be replaced by spring steel bars extending along the length of the diaphragm. The upper mould may be heated by passing steam through a chamber 33. A top closure disc 26 is embedded in the spring during moulding. The diaphragm is clamped at its lower end by a ring 17 and is fixed at its upper end to a reciprocable rod 21.
Patent GB-1511535-A (GB)
Title: Endless chain towing conveyors
Inventor: KUWERTZ E
IPC: B61B10/02
Filed: 1975-08-27
Abstract: 1511535 Conveyer systems PFALZSTAHLBAU GmbH 27 Aug 1975 [14 Sept 1974] 35293/75 Addition to 1280450 Heading B7L In an endless chain towing conveyer system as claimed in claims of the parent Specification each coupling device 2 comprises a housing 10 for a pivotal drop or additional lever 25 extending into the path of movement of the caps 20 and 23 so as to be pivoted upwardly, to displace an intermediate lever 32 pivoted in the housing 10 and arranged to move a pivoted trailing lever 11 from a normal position in which latches a pivoted driving finger 12 to a release position in which it permits the finger 12 to pivot out of engagement with a cart (not shown) upon engagment of the lever 25 with a cap 20 or 23. The normal horizontal latching position of the lever 11 is ensured by a stop pin 31 and the lever 11 is operable by a lateral extension 35 on the intermediate lever 32. The driving finger 12 has a counterweight side extension 36 and the drop lever 25 has an end face 26 co-operating with a stop 27 on the housing 10 to limit downward movement of the drop lever.
Patent GB-340720-A (GB)
Title: Improvements in balancing mechanism for reciprocating machines
IPC: F16F15/26
Filed: 1929-11-19
Abstract: 340,720. Balancing reciprocating machines. PAXMAN, E. P. and DAVEY, PAXMAN & CO., Ltd., Standard Iron Works, Colchester. Nov. 19, 1929, No. 35312. [Class 122 (iii).] Means for balancing the secondary forces in internal combustion engines, steam engines, air compressors, &c. comprises oscillated weights arranged on either side of the crank shaft on shafts arranged parallel thereto and driven therefrom through speed-increasing gearing such as described in Specification 14931/14, [Class 80 (ii), Gearing, Variable-speed &c.]. The main shaft 3 of a fourcylinder heavy oil engine 1 drives at double speed a supplementary shaft 4 which shaft through eccentrics and rods 8 oscillates cranks 9 secured to the side shafts 6 carrying the balance weights 7.
Patent GB-461073-A (GB)
Title: Improvements in electro-dynamic sound reproducers
IPC: H04R1/28
Filed: 1935-05-03
Abstract: 461,073. Acoustic filters. JENSEN RADIO MANUFACTURING CO. May 3, 1935, No. 35371/36. Convention date, June 4, 1934. Divided out of 460,994. Drawings to Specification. [Class 13] [Also in Group XXXIX] The description is wholly included in Specification 460,994 as open to inspection under Sect. 91. Subordinate claims relate to the provision of an acoustic network forming a low-pass filter in association with a moving member of an electro-dynamic loud-speaker.
Patent GB-956923-A (GB)
Title: Improvements in or relating to switching arrangements for high frequency energy
IPC: H01Q3/38
Filed: 1962-09-18
Abstract: 956,923. Phase-shifting. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Sept. 18, 1962 [Sept. 18, 1961], No. 35422/62. Heading H1W. [Also in Division G4] A phase shifter for use in a re-coding circuit is shown in Fig. 1. A plate 2 has a strip conductor 1 having a sharp impedance variation at 3 and a diode at 5 which may be back biased or not by a source 7. The source 7 alters the impedance of the diode-cavity combination from inductive to capacitive and h.f. energy applied is phase shifted accordingly the difference being 180‹. In Fig. 3 there are eight phase shifters D1- D8 connected in pairs to hybrid junctions T12, T34, T56 and T78. The outputs are connected in pairs by junctions T14, T<SP>1</SP>14, T58 and T<SP>1</SP>58 which are, in turn, interconnected by junctions S11, S23, S45, S67. Each of these except the first has two output branches making seven outputs one of which can be selected according to the combination of phase shifters D1-D8 which are controlled. Power is applied to the circuit at branch E. The hybrid junctions may be formed in a micro-wave line, Fig. 5, having input branches 1, 2, output branches 3, 4 and a ring junction 5.
Patent GB-445054-A (GB)
Title: Improvements in and relating to control systems for engine-electric vehicles
IPC: H02P9/00
Filed: 1934-12-10
Abstract: 445,054. Transmitting mechanical power. AKTIESELSKABET FRICHS, Aabyhoj, Aaby, Aarhus, Denmark. Dec. 10, 1934, No. 35461. Convention date, Dec. 11, 1933. [Class 38 (iv)] [See also Group XXXVII] In a control system for engine-electric vehicles having a variable voltage generator 1 supplying one or more traction motors 16, 17, delayed action relays 18, 19, inserted in the motor armature circuits, are arranged to control means for operating the generator field regulator. The field 2 of the generator 1 is resistance regulated by means of a controller 4 operated by a split-field pilot motor 6 controlled by the relays 18, 19, through an electromagnetic relay device having coils 12, 13. The relays 18, 19, may be of the thermal or oil-brake type. If, while a controller 10 or 11 is operated, the motor currents exceed a. certain value for a longer period than is desirable, relay contacts 20, 21 open, the coil 12 is de-energized and the circuit to the pilot motor is interrupted, so that no further increase of the generator voltage takes place. Upon a greater increase of the motor currents relay contacts 22, 23, are closed, the coil 13 energized, and the pilot motor connected for reverse rotation so that the generator voltage is decreased. Similar control of the pilot motor 6 is exercised by a device 24 operated by the engine governor upon different degrees of excess loading of the prime-mover.
Patent GB-1261665-A (GB)
Title: Apparatus in sheet-fed rotary printing machines for selectively turning sheet print carriers
Inventor: ZIRNSTEIN PETER
IPC: B41F21/08
Filed: 1970-07-22
Abstract: 1,261,665. Printing apparatus. POLYGRAPH, LEIPZIG KOMBINAT FUR POLYGRAPHISCHE MASCHINEN UND AUSRUSTUNGEN VEB. 22 July, 1970, No. 35554/70. Heading B6C. A sheet-fed rotary printing machine incorporates a sheet transfer mechanism, operating between two printing mechanisms, whereby sheets may either be passed from.one mechanism to the other to receive successive impressions on the same side of each sheet, or may be turned, by means of a pivoted gripping bar, for printing on. their previously unprinted sides. The pivoted gripper bar introduces the sheet into. the second printing mechanism with what was formerly its trailing edge leading, and may be driven from adjustable cams so that its action can be suited to varying lengths of sheet.
Patent GB-424666-A (GB)
Title: Improvements in or relating to labels for umbrellas, walking sticks and the like
IPC: A45B25/30
Filed: 1933-12-18
Abstract: 424,666. Labels. HUTCHINSON, E. M., 64, Angell Road, Brixton, London. Dec. 18, 1933, No. 35567. [Class 73] [See also Group VII] A shooting-stick or the like is provided with an identification - plate d, hingedly or pivotally mounted, as on a pin e, within a slot c in the stem a so that the plate can be turned outwards for inspection. The plate is formed with a raised portion f which projects from the stem when the plate is within the slot and can be pressed to turn the plate.
Patent GB-1439907-A (GB)
Title: Process for the purification of lithium hexafluoroarsenate
IPC: H01M6/16
Filed: 1974-08-13
Abstract: 1439907 Lithium hexafluoroarsenate USS ENGS & CONSULTANTS Inc 13 Aug 1974 [16 Aug 1973] 35645/74 Heading C1A Lithium hexafluoroarsenate, which may be prepared by the neutralization of hexafluoroarsenic acid with lithium hydroxide, is purified by maintaining an aqueous solution of the impure material at 80-100 C. while adding lithium hydroxide to maintain the pH at least at 10À5 and until the consumption of the hydroxide is less than 0À5 millimoles/litre of solution/day thus converting the impurities into water insoluble compounds, e.g. lithium fluoride and lithium arsenate; the pH of the solution is then adjusted to within the range 7À5 to 9À0 by adding aqueous hydrofluoric acid and thence storing the hot solution to complete impurity precipitation and filtering the precipitate from the solution, cooling the filtrate to 0-25 C. to precipitate lithium hexafluoroarsenate trihydrate, and dehydrating the trihydrate at a temperature not exceeding 100 C. at least partially under reduced pressure with a dry gas sweep, e.g. with nitrogen, to give purified product.
Patent GB-301872-A (GB)
IPC: G03B31/00
Filed: 1928-12-04
Abstract: 301,872. Messter, O. Dec. 7, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Sound reproduction associated with kinematographs.-The operation of a plurality of identical kinematographs at different places is effected in synchronism with acoustic reproductions transmitted by telephone or wireless from a. central station by the provision of a clock-driven pointer with which a pointer driven by a cinematograph is synchronised by adjustment of the speed of the latter. The clock-driven pointers at the various cinemas are first sot by indications from the, central station, and the various cinematographs are then driven in synchronism therewith by controlling their drives so that the pointers turn in unison.
Patent GB-1305572-A (GB)
IPC: F16H61/42
Filed: 1970-07-23
Abstract: 1305572 Driving trailer wheels; hydrostatic transmissions SUNDSTRAND CORP 8 April 1970 [2 June 1969] 35747/72 Dividedout of 1305571 Heading B7H [Also in Division F2] A hydrostatic assist drive in a tractortrailer vehicle comprises a hydraulic motor 26 supplied by a variable-displacement pump 25 driven by the tractor engine, the pump displacement being controlled by a torque control 54 linked to the throttle control 51 of the engine 12 and arranged to maintain the assist drive effort at a constant proportion of the total tractive effort. The pump 25 and motor 26 comprise respective rotatable cylinder blocks 116, 118 which are connected by supply and return lines 29, 30 and a leakage line 31 and have axial pistons 120, 122 co-operating in the case of the motor with a fixed cam plate 125 and in the case of the pump with a variable-angle swash plate 123 adjusted by control cylinders 127, 128. A make-up and cooling pump 140 having a relief valve 149 supplies oil to whichever line 29, 30 is at low pressure through one of check valves 146, 147, heated oil being displaced through a shuttle valve 152 and low pressure relief valve 151. High pressure relief valves 160, 161 are connected in opposite fashion between the lines 29, 30. The motor 26 is coupled through a one way clutch to a two-speed axle on a trailer or dolly, the axle ratio being controlled in accordance with the parent specification so that the axle gears are shifted from low to high ratio when a first predetermined vehicle speed is reached and are shifted into neutral when a second higher speed is reached or when a main transmission driving a tractor axle is shifted into a high or reverse ratio. The pump 25 is driven from the engine through a clutch which is disengaged when the second speed is reached or a high or reverse transmission ratio is selected. The torque control 54 includes a lever 175 connected to the engine throttle pedal 51 and arranged to act on a rod 177 which controls oil flow across a piston 180 through a bore 203 and radial passages 205, 206 to determine the position of the piston 180. The piston 180 acts through a spring 217 on one end of the spool 216 of a valve 166 controlling application of pressure oil from the make-up pump 140 to the pump control cylinders 127, 128. A piston pin 236 acting on the other end of the spool 216 is subjected to the pressure in the motor supply line 29 so that the swash plate angle and hence the pump supply pressure is such that the motor torque is a fixed proportion of total engine torque. A neutral centreing valve 170 actuated by a solenoid 250 reduces the pressure on one side of the piston 180 to reduce the pump displacement to -zero during ratio changes in the two speed axle. A control delay dashpot 173 having an adjustable flow control valve 247 delays movement of the lever 175 upon sudden closure of the throttle 51 so that the assist drive remains operative during ratio changes in the main transmission.
Patent GB-1080485-A (GB)
Title: Improved polymerization process
IPC: C08F279/04
Filed: 1964-09-02
Abstract: Graft polymers are made by bulk polymerizing a mixture of a monovinyl aromatic monomer and a rubber to a conversion of monomer to polymer of from 10 to 45% employing cyclo-hexanone peroxide as initiator, suspending the resulting mixture in an aqueous medium containing a suspension stabilizer, e.g. hydroxyethyl cellulose, completing polymerization, and recovering polymer beads from the suspension. Vinyl aromatic monomers specified are styrene and its alkyl and halogen derivatives, which may be used alone or in admixture with one another or with other monomers such as acrylonitrile and methyl methacrylate.  Rubbers specified are natural rubber, linear and non-linear polybutadienes and polyisoprenes, copolymers of butadiene with styrene acrylonitrile and isobutylene, polycyclopentadiene and chlorinated rubber.  Additional initiators may be present during polymerization, e.g. tertiary butyl perbenzoate and peracetate and dicumyl peroxide.