baber/WOPTO huggingface dataset:
Patent GB-284259-A (GB)
Title: Improvements in scoring mechanism for envelope machines and the like
IPC: B31B50/25
Filed: 1928-01-16
Abstract: 284,259. Smithe Machine Co., Inc., F. L., (Assignees of Novick, A.). Jan. 26, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Delivery apparatus.-In apparatus for scoring envelope blanks in preparation for the final folding, a guide 62 is mounted above the, delivery table 63 of the machine, and in order to ensure that the blanks are delivered beneath the guide, a nozzle 65 directs a current of air between the cylinders 11, 50 so as to prevent the sheet from curling upwardly.
Patent GB-988117-A (GB)
Title: Cyclic ethers and their manufacture
Inventor: FLINT JOHN ANTHONY
IPC: C07D305/08
Filed: 1963-07-25
Abstract: The invention comprises cyclic ethers of formula <FORM:0988117/C2/1> where R2 is hydrogen or alkyl and R14 is alkyl or aralkyl, provided that if R2 is methyl, then R14 has at least two carbon atoms.  They are prepared by treating with base an appropriate hydroxy-substituted halohydrin ether or an ester thereof to remove the elements of hydrogen halide or acyl halide.  The base may be NaOH or KOH or lime, e.g. aqueous or ethanolic NaOH or KOH or a solution of NaOH or KOH in an alcohol of higher boiling point than the cyclic ether product, e.g. a propylene glycol.
Patent GB-1144499-A (GB)
Title: Improvements relating to hydrocarbon conversion using supported metal catalysts
Inventor: BOURNE KENNETH HUGH
IPC: C07C5/02
Filed: 1966-01-12
Abstract: 1,144,499. Catalytic conversion of hydrocarbons. BRITISH PETROLEUM CO. Ltd. 18 May, 1966 [12 Jan., 1966], No. 1432/66. Heading C5E. Catalytic conversion of hydrocarbons is effected by passage over a catalyst comprising one or more elementary metals of Group VIA or VIII of the Periodic Table on a refractory inorganic oxide of an element of Group II, III or IV of the Periodic Table under conditions such that the metal remains predominantly elementary during the conversion, the catalyst having been prepared by an ion-exchange technique involving replacement of H<SP>+</SP> with Group VIA or VIII cations via alkaline cations, washing, drying and reducing. Particular hydrocarbon conversions include dealkylation; de-methanation; hydrocracking ; hydrogenation e.g. of olefins, acetylenes and aromatics; selective hydrogenation, e.g. of diolefins in the presence of mono-olefins or of mono-olefins in the presence of aromatics; and desulphurization. Examples describe the hydrogenation of isoprene ; production of methane by de-methanation or hydrocracking of n-heptane, toluene or light petroleum distillate; desulphurization of benzene; hydrogenation of benzene to cyclohexane; and dealkylation of toluene.
Patent GB-840571-A (GB)
Title: Process for the manufacture of grinding wheels, discs and the like
IPC: B24D18/00
Filed: 1958-01-15
Abstract: In the manufacture of grinding wheels from granules of e.g corundum coated with a synthetic resin and layers of reinforcing material, e.g. tissue paper, the coated granules are sprinkled on the reinforcing material which is not impregnated with resin, and then the two are bonded together by e.g. infra-red heating.  The coated reinforcing material is then pressed in a mould with or without resin impregnated reinforcing sheets of paper or glass fibre.
Patent GB-686880-A (GB)
Title: Rotary piston motor for fluid gears
IPC: F16H39/16
Filed: 1951-01-19
Abstract: 686,880. Rotary engine. SCHUBERT, W. Jan. 19, 1951 [Jan. 27, 1950; July 7, 1950], No. 1500/51. Class 110(ii) The engine has a number of pairs of hinged abutments, l, l<SP>1</SP>, each pair pivoted on a pin v between inlet and outlet ports g, h, and cam-shaped pistons d, d<SP>1</SP>, on the rotor c. Fig. 3 shows a piston d<SP>1</SP> holding up an abutment l<SP>1</SP>, to close the inlet port, and pressure fluid holds up the abutment l until sufficient fluid leaks away through ducts r, s, u to the outlet h, the abutment then lowering. Stop pins w<SP>1</SP>, w<SP>11</SP> are pivoted to limit the movements of the abutments. A number of rotors are arranged along a common shaft e, with slight axial freedom, the pistons being displaced angularly, relatively to one another for balancing purposes. The engine may be reversed by reversing the flow of fluid, Non-return valves may be placed in the abutment faces.
Patent GB-832038-A (GB)
Title: Imidazoline corrosion inhibitors
IPC: C23F11/14
Filed: 1958-01-16
Abstract: Corrosion-inhibiting compositions comprise a major amount of an inert oil solvent containing an imidazoline of formula <FORM:0832038/III/1> where R is the residue of a C10-20 fatty acid and R1 is hydroxyalkyl. Steel coupons are dipped in kerosene solutions of some of these.ALSO:The invention comprises imidazolines of formula <FORM:0832038/IV (b)/1> where R is the residue of a C10-20 fatty acid and R1 is hydroxyalkyl.  They may be prepared by heating equimolar quantities of a C10-20 fatty acid and a substituted 2 - methyl - 1,2 - propanediamine having a hydroxyalkyl group attached to the amino group in the 1-position to about 150-300 DEG C. and removing the theoretical 2 mols of water during the heating period.  The products have anti-corrosive properties.
Patent GB-265184-A (GB)
Title: Improvements in armature actuating mechanism for magnetos
IPC: H02K35/06
Filed: 1927-01-19
Abstract: 265,184. Brown, P. Jan. 28, 1926, [Convention date]. Inductor machines; reciprocating and oscillating machines.- In an inductor magneto machine in which an armature bar is moved from and into contact with the magnet poles, the removal is initiated at an adjustable time by inelastic driving means and is continued, adjustably in respect of time and driving force, by elastic driving means, the force being decreased by timing the device when the spark is advanced. Figs. 1 and 3 show the device set respectively for advanced and retarded sparking and Figs. 4 and 6 are sectional detail views on the planes 4-4, Fig. 1, and 6-6, Fig. 4. Fig. 5 is a section on the plane 5-5, Fig. 4. The type of magneto illustrated comprises permanent magnets m, Fig. 1, the polepieces c of which carry primary choke windings w and secondary windings w' connected to the spark plugs. The poles are intermittently bridged by the armature bar a which is reciprocated from the engine cam or other shaft 43 by an eccentric, push-rod 39 and crank 12, and at the same time opens and closes contacts b<1> in the circuit of the coils w. The crank 12, which reciprocates the armature through its forked end and a sliding block pivoted in the armature stem 10, is journaled on a spindle 17 projecting eccentrically from a shaft 18 which is housed in a bearing 21, Fig. 5, on the magneto-supporting frame f. An extension 19 of this shaft carries the pendent timing-lever 20 on an arm 34 of which is one abutment, in the form of an adjustable screw 31 in the end 32 of the arm, for the armature driving spring 28. The other end of this spring abuts on the bent end 27 of a finger 26 which projects from the downward arm 16 of the crank member. Thus, when the lever 20 is moved to the retard-spark position, Fig. 3, the i compression of the driving spring 28 is increased, while it may be independently controlled by means of the screw 31. The setting of the lever 20 is held by a projection 22, Fig. 5, which is urged by a sunk spring 25 into one of a series of notches 23 on the framing. The arm 16 of the crank is bored conically for the passage of the push-rod and has bosses respectively engaged by the shoulder 45 of the push-rod and the return spring 46 which is carried on the outer end of the push-rod. The push-rod is adjustably screwed into the eccentric stem so that by adjustment of its lock nut 41 and of the abutment screw 31 of the spring 28 or by adjustment of the timing lever the movement of the armature may be effected entirely by the shoulder 45 or it may be initiated by the shoulder and completed by the spring 28 for starting or at low engine speeds. When the spark is retarded, the combination of inelastic and elastic drives for the armature is employed, and at high speeds with advanced spark and the spring 28 unstressed, an inelastic drive from the shoulder 45 only is used. Alternatively, for lower speeds, the spring 28 may be made to give the complete drive without using the shoulder. The return spring is so set as to take up lost motion and eliminate noise.
Patent GB-363181-A (GB)
Title: Improvements in industrial steam-heated plants
IPC: F24D1/02
Filed: 1931-01-17
Abstract: 363.181. Heating by circulation of fluids. DUCHEZ, P. M., 57, AllÚe du Jardin Anglais, Le Raincy, France. Jan. 17, 1931, No. 1649. Convention date, Feb. 5, 1930. [Class 64 (ii).] In a steam heated plant in which the condensate is returned to the boiler, a loop 16 is provided filled with water under pressure circulated by a pump 19 from one or several generators or from a steam accumulator 8 back to the generators, the discharge conduits 20, 201, 2011 from the steam heated apparatus being connected to the loop. The steam supplied from the generator 1 may be first expanded in an engine 5, a byepass 9 being provided to increase the supply if the exhaust of the engine be insufficient.
Patent GB-752896-A (GB)
Title: Improvements in or relating to covers and cots for textile drafting rollers and method for manufacturing same
IPC: B22C3/00
Filed: 1954-01-21
Abstract: A cover or cot for a textile roller is made of an oil-resistant synthetic rubber composition and has spheroidal cavities in its working surface formed by the removal of spherical particles.  A preferred synthetic rubber composition comprises 100 parts by weight of a butadiene-acrylonitrile copolymer, 10-20 parts plasticizers, 0.625 parts stearic acid, 6.5 parts sulphur, 1 part antioxidant, 1 part accelerator, 7.5 parts coumarone indene resin, 20-60 parts clay filler.  To this composition are added frangible particles formed by the fusion, expansion and rapid cooling of ground silicons or argillaceous material, such as clay.  The particles may range in size from 0.001 to 0.2 inch and 30 to 150 parts may be added to 100 parts of rubber composition.  Grinding of the cover results in breakage of the particles at the surface and the broken fragments are blown away to give a recessed surface that is said to be resistant to "eyebrowing" and fibre lapping. Specification 563,374, [Group VIII], is referred to.
Patent GB-1020679-A (GB)
Title: Method and composition for removing and inhibiting paraffin deposition
IPC: C09K8/524
Filed: 1965-01-15
Abstract: Wax deposition in crude petroleum is inhibited by adding a composition comprising (a) a polyalkylene glycol monoalkylether, (b) an alkylene glycol monoalkylether and (c) a polyoxyalkylene ether of an alkyl phenol in a weight ratio of from 1:1:1 to 1:3:2 respectively.  The preferred components are diethylene glycol monoethylether, ethylene glycol monobutylether and polyxyethylene nonylphenol ether in a weight ratio of 1:2:1 to which is added water, e.g. 3 vols. per vol. of composition.  The composition may be flushed down oil wells prior to pumping or added in slugs to transfer lines or storage tanks.
Patent GB-1493051-A (GB)
Title: Method of extracting enzymes from aqueous solutions
IPC: C12P1/00
Filed: 1975-01-16
Abstract: 1493051 Separating sugar constituents of invert sugar and milk by ion exchange PFEIFER & LANGEN 16 Jan 1975 [17 Jan 1974 21 Aug 1974] 1980/75 Heading C2S [Also in Divisions C3 and A2] Glucose, fructose and lactose (from milk) are separated from enzymic impurities by passing a solution containing the saccharides and enzymes through an ion-exchange resin, eluting with water and then extracting first an enzyme rich fraction and then a fraction of eluate rich in the said saccharide (see Division C3).
Patent GB-1510261-A (GB)
Title: Method of removing unreacted monomer from polymer
Inventor: NAKAI SETSUO
IPC: B29C48/04
Filed: 1976-01-19
Abstract: 1510261 Removing monomer from ethylene polymers SUMITOMO CHEMICAL CO Ltd and JAPAN STEEL WORKS Ltd 19 Jan 1976 2025/76 Heading C3L The monomer content of a high pressure ethylene polymer is reduced in an extruder by injecting 0À1-10% of water or steam, mixing and passing through a vent zone in the extruder wherein a pressure of not more than 500 mmHg. is maintained. The polymer may be a homo- or co-polymer which has been subjected to high and low pressure separation.
Patent GB-853039-A (GB)
Title: Improvements in or relating to card indexes
Inventor: OLSON JOHN JACOB
IPC: B42F17/34
Filed: 1958-01-21
Abstract: 853,039. Filing papers. BROWN & BIGELOW. Jan. 21, 1958, No. 2071/58. Class 146(1). A series of index cards 58 having notches 59 rest on the top 51 of a case 48, the card being selected as required by keys 30. The keys 30 are carried by primary levers 27 provided with lifting cams 31 which actuate lever arms 40 on secondary levers 38 upwardly, thus lifting a cover 68 and the cards 58 preceding the one selected by the depressed key 30. Upon engagement of a gear segment 32 on each of the primary levers 27 with a gear segment 41 on each of the secondary levers 38, the cover 66 and the cards 58 above the selected are accelerated in their movement to open position, Fig. 3 (not shown). The keys are urged into raised projection by a leaf spring 44 having fingers 44a. The cards 58 are progressively notched from left to right in alignment with recesses 52, the top card having no notches the second having a single notch at its left edge and so on. The cards also have notches 61 slidable on arcuate tracks 63 of retainers 62 rotatable with the cover 66. A locking bar 22 pivotally mounted about hinge clips 20 prevents actuation of a further key when one key is already depressed by engagement of its free edge 26 between two teeth of the segment 41. A closure lever 36 rotates a cam 43 into engagement with the cover 66 to initiate closing of the index, the final closing being effected by gravity.
Patent GB-113007-A (GB)
Title: A New or Improved Device for Supporting the Shades or Reflectors upon Incandescent Lamp Holders and for Locking the Lamp to its Holder.
Inventor: WALLER WILLIAM
IPC: F21V17/06
Filed: 1917-02-13
Abstract: 113,007. Waller, W. Feb. 13, 1917. Shade and reflector holders.- -A device for supporting a shade or reflector on an electric - lamp holder and for locking a lamp to its holder comprises a spring split collar a formad with inwardly projecting teeth for engaging the thread on the holder and with depending arms f, the inwardly bent ends of which engage with the bayonet slots g in the holder and prevent the detachment of the lamp. The collar can be expanded to release it by inserting the blank of a key between its meeting edges, or by pins at the upper ends of a pair of tongs engaging holes in the rings a. One of the meeting edges of the ring may be formed with a slot for the key and its other edge may be flanged inwardly to form a thrust surface for the key blank when turned. In a modification, the spring collar is made up of sections a, Fig. 4, connected by a spring band or wire i, the ends of which may cross and terminate in knobs or eyes to facilitate manipulation. The sections may be formed in addition to the depending arms and the inwardly projecting teeth d with outwardly projecting lugs j upon which the shade rests.
Patent GB-1048482-A (GB)
Title: Dyeing and printing with basic dyes containing hydrazinium groups
Inventor: CARBONELL JOSE
IPC: C09B69/00
Filed: 1964-01-17
Abstract: The invention provides a process for the dyeing or printing of fibres, films, filaments or fabrics of polyacrylonitrile, polyesters or polypropylene with basic dyes and including in the process as dyeing or printing assistants dibasic carboxylic acids having 2-6 carbon atoms or salts.  The dyes used are those of formula <FORM:1048482/D1-D2/1> in which A is a dye radical other than a phthalocyanine dye, Y is a substituted or unsubstituted alkylene group or a bridge member bound by such a group to the adjacent nitrogen atom, R1 is a substituted or unsubstituted alkyl, cycloalkyl, or aralkyl radical, or together with R2 and the adjacent nitrogen atom forms a heterocyclic ring, or together with the bridge member Y and the adjacent nitrogen atom forms a heterocyclic ring system, R2 is a substituted or unsubstituted alkyl, cycloalkyl or aralkyl radical, or together with R1 and the adjacent nitrogen atom forms a heterocyclic ring, R3 and R4 arc hydrogen or identical or different substituted or unsubstituted alkyl cycloalkyl or aralkyl radicals or identical or different acyl radicals or R3 and R4 together represent a dibasic acyl radical, or alternatively R1 or R2 together with R3 or R4 and the nitrogen atoms adjacent to these substituents can form a saturated or unsaturated 5 or 6 membered heterocyclic ring, n is an integer and - the negative charge of an anion.  The dyes are preferably soluble in water at 80 DEG C. and are free from anionic groups.  Dibasic acids specified as assistants are maleic and tartaric acids and their mono-sodium, potassium, ammonium salts also the disodium, potassium and ammonium salts.  Fibres dyed are polyacrylonitrile and polyester fabrics which may be in conjunction with wool or cotton nylon or acetate a disperse dye being used to dye the latter.  The dyeing is best effected at pH 2-7 at temperatures of 60-120 DEG C., the basic dye being pasted with an acid before adding to the dyebath.
Patent GB-483870-A (GB)
Title: Improvements in, and in the manufacture of, elastic girdle-slips
IPC: A41B9/02
Filed: 1937-01-25
Abstract: 483,870. Surgical trusses. BOUDO, A. Jan. 25, 1937, No. 2162, Convention date, Sept 23, 1936. [Class 81 (ii)] [Also in Group VII] An elastic girdle slip, made from a single sheet of textile material containing rubber threads, is reinforced at the level of the inguinal zone 10 to exert greater elastic pressure on pads attached thereto for the treatment of rupture.
Patent GB-870012-A (GB)
Title: Improvements in the purification of crude dimethyl terephthalate by distillation
Inventor: AROYAN HARRY JAMES
IPC: B01D9/00
Filed: 1960-01-21
Abstract: <PICT:0870012/III/1> Pure dimethyl terephthalate is recovered from mixtures of the ester with methanol, water and other impurities by a process in which a distillation column 1 is maintained at a pressure at which the condensation temperature of the vaporized methanol-water mixture is above the solidification temperature of the ester, i.e. at least 8 atmospheres, an overhead fraction of methanol, water and low-boiling impurities is led off by line 5 to a second, dehydrating, distillation column 10 from which pure methanol is obtained overhead by line 11 and water and impurities are drained off by line 35, the ester mixed with high-boiling impurities is led by line 9 into a third distillation column 14 maintained at atmospheric or slightly elevated pressure up to 1 atmosphere gauge, to which column methanol vapour is also fed by line 13, and the pure ester is separated from methanol after the fraction consisting of ester and methanol distilled off by line 18 is condensed.  High-boiling impurities are discharged by line 16. Crude mixtures preferably contain 1.5 to 8 parts of methanol per part of ester and the water content is between 1 and 30% of the methanol content.  Two columns instead of column 1 may be used. The vapours in line 18 are condensed at atmospheric or reduced pressure in a vessel 20 and the condensate is cooled further, e.g. to between 40 DEG C. and -10 DEG C., in a container 21 to crystallize the ester, which is then separated from methanol in a centrifuge 24.  The ester, after washing, if desired, with methanol from line 26, is passed to a drier 28 while excess methanol is passed to a reservoir 25 for use in the esterification of terephthalic acid or for circulation to the second column 10 by line 33.
Patent GB-781839-A (GB)
Title: Improvements relating to lower carriages for firearms
IPC: F41A23/02
Filed: 1956-01-24
Abstract: 781,839. Lower carriages for firearms. AKTIEBOLAGET BOFORS. Jan. 24, 1956 [Jan. 29, 1955], No. 2308/56. Class 92 Relates to a lower carriage for a firearm of the kind having two carriage trails 2, 3, Fig. 1, which can be swung horizontally to give, with aground plate 10, a threepoint support. According to the invention the plate 10 is located adjacent the traversing axis of the firearm and between two further carriage trails 15, 16 which can be swung both horizontally and vertically, each being provided with a buffer device 23, 25 which can be locked in any position to prevent upward movement of the trail when in its swung-out position. Each of the trails 15, 16 is secured by an end part 19, Fig. 2, to the centre portion 1 of the carriage by a vertical pivot 17 and a horizontal pivot 18 connects this end part 19 to the trail proper. A lug 23 can swing about the pivot 18 and coacts with a buffer member 25 positioned on the centre portion 1. A shaft 26 operated by a lever 28 maintains the lug 23 in or out of contact with the buffer 25. The lug 23 coacts with the closed end of a tubular plunger 32, Fig. 3, movable in a chamber 33 in a housing 34 and actuated by both spring and fluid pressure. A spring-loaded ball valve 37 controls the flow of liquid between a chamber 44 and the chamber 33 and normally prevents flow from the chamber 33 so as to lock the buffer device. The ball 37 may, however, be moved from its seat by means of a stem 40 in contact with one end of a lever 48 operated by a device 51, 54, 55, so that the buffer is unlocked; the plunger 32 may then be pressed back by the lug 23 and the corresponding trail pivoted upwardly.
Patent GB-265948-A (GB)
Title: Improvements in or relating to the production of methyl alcohol by catalysis
IPC: C07C31/04
Filed: 1927-01-27
Abstract: 265,948. Soc. Francaise de Catalyse Generalisee, (Assignees of Henry, C.). Feb. 9, 1926, [Convention date]. Methyl alcohol.-Catalysts for the synthesis of methyl alcohol from carbon monoxide and hydrogen at elevated temperature and pressure comprise either a mixture of metallic strontium and lead monoxide, preferably in the proportions of 3 or 4 atoms of strontium for each molecule of lead oxide, or a mixture of metallic zinc and bismuth trioxide, preferably in the proportions of 3 : 1. Using a catalyst of composition 3Sr+PbO, methyl alcohol is obtained at 5 atmospheres and 300‹ C. or 10 atmospheres and 200‹ C. The Specification as open to inspection under Sect. 91 (3) (a) states also that the synthesis is effected by passing a mixture of carbon monoxide and hydrogen in the volume proportions of 1 :2 and under a pressure of 5 atmospheres through a metallic cylinder, preferably of cast iron, containing a number of unsymmetricallyperforated discs of porous earth. The catalyst, consisting in this case of 3Sr+PbO, is mounted upon the discs and also coated upon the internal walls of the cylinder, the mass of catalyst being <1>/150 of the gases present. By suitable means, such as an electric heater, the temperature of the gases is raised to 300‹ C., after which the reaction proceeds with cooling of the cylinder. At 200‹ C. a pressure of 10 atmospheres is necessary; with the other catalysts, different temperature and pressure conditions are employed. This subject-matter does not appear in the Specification as accepted.