baber/WOPTO huggingface dataset:
Patent GB-697473-A (GB)
Title: A process for the manufacture of substituted phosphorus oxyacids
Inventor: MORRISON ALEXANDER LANG
IPC: C07F9/08
Filed: 1950-12-01
Abstract: A process for the di-dearylkylation of esters of pyrophosphoric acid which have at least one aralkoxy-group attached to each phosphorus atom comprises treating such a pyrophosphoric acid ester with a salt of a thio-acid of the general formula [R.S-]vM, wherein R is -CN, -CS.O alkyl or -CS.NR1R2 wherein R1 and R2 each represent hydrogen, alkyl or aralkyl, or together with the N-atom to which they are attached, form a piperidino or morpholino group) or any other carbon-containing group which renders the compound R.SH acidic, M is a metallic cation or ammonium or a substituted ammonium radical derived from strong amines and v is the valency of the cation M. "Di-dearalkylation" means the removal of two such groups, as phenyl-methyl, naphthylmethyl, pyridylmethyl, quinolylmethyl and pyrimidylmethyl, one from each phosphorus atom of the pyrophosphoric acid ester.  Groups which render the compound R.SH acidic are those which give rise to a mercaptal which is capable of forming a stable salt with the cation M.  A strong amine is one having a dissociation constant greater than 10-7.  Reaction may be effected at e.g. 17 DEG C. or with heating.  Strong amines from which the radicals M may be derived are cyclohexylamine, benzylamine, morpholine, b -phenyl-ethylamine and piperidine.  When different aralkyl groups are present in the molecule, they are removed at different rates to give a mixed product.  The reaction may be performed in a hydroxylic solvent, e.g. alcohol or a non-hydroxylic solvent, e.g. methyl ethyl ketone.  In example (1) the di-ammonium salt of sym-dibenzyl pyrophosphate is obtained by reacting tetrabenzyl pyrophosphate and ammonium thiocyanate in alcohol or acetone, and is converted to the corresponding silver salt by reaction with silver nitrate. Similarly obtained are (2), (6), the dicylohexyl ammonium salt of sym-dibenzyl pyrophosphate from tetra-benzyl pyrophosphate, and (2) cyclohexylammonium thiocyanate, (6) cyclohexylammonnium N-cyclohexylamino dithioformate; (3) the di-benzylammonium salt of sym-dibenzyl pyrophosphate from tetrabenzyl pyrophosphate and benzylammonium thiocyanate; (4) the di-lithium salt of sym-benzyl pyrophosphate using lithium thiocyanate; (5) the dicyclohexylammonium salt of sym-diethyl pyrophosphate from sym-dibenzyl diethyl pyrophosphate and cyclohexylammonium thiocyanate; (7) the dipotassium salt of sym-dibenzyl pyrophosphate from tetrabenzyl pyrophosphate and potassium ethyl xanthate.  sym-Dibenzyl diethyl pyrophosphate is obtained by condensing the disilver salt of sym-dibenzyl pyrophosphate with ethyl iodide in acetonitrile.  Specification 675,779 is referred to.
Patent GB-237791-A (GB)
Title: Machines for punching, shearing and stamping angle bars
IPC: B21D28/24
Filed: 1924-12-09
Abstract: 237,791. Bennie, H. O. Dec. 9, 1924. Cutting girders; punching; embossing. - A machine for punching holes in angle-bars has the work so supported that its cross-section is symmetrical about a vertical axis through the angle or " heel," the tools being arranged obliquely so as to operate in a direction normal to the bar surface. The dies with which the punches coact are stationary and are secured in the main frame of the machine. The machine may be provided with adjuncts for shearing and for stamping identification &c. marks on the bar and may be arranged so as to operate simultaneously on both of the exposed faces of the bar. The work may be supported with its " heel " located upwards or downwards. Three machines A, B, C, Fig. 7, may be mounted on a single bed 39, the machine A being stationary and the machines B, C being adjustable along the bed by worm gearing 41, 42 and pinions 43 gearing with a rack on the bed. The three machines are simultaneously operated by a shaft 9' driven through an ordinary onerevolution clutch 16 and spur gearing by an electric motor 11. Any of the units may be provided with an adjustable stop 44 for gauging the length of the work fed, and the punches in each punch head are adjustable in the longitudinal direction of the bed. The machine A has a spring-returned punch head 8, Fig. 4, the punch head having an abutment for operating a pivoted arm 20 carrying a shear blade 18, 19 coacting with a blade 17 at the end of the work bed. A slide 24, Fig. 5, carrying a stamping type 23, is guided in the frame of the machine A and is operated by a helved-hammer 25 controlled by a spring 31 and actuated through linkage 30, 28 by a cam 33 on the mainshaft. A hand gear 38, 37, 35 is provided for throwing the hammer mechanism in and out of gear.
Patent GB-993997-A (GB)
Title: Method and apparatus for measuring high pressures of a hot fluid medium
IPC: G01L7/08
Filed: 1963-07-25
Abstract: 993, 997. Pressure gauges. J. C. ECKARDT A.G. July 25, 1963 [June 13, 1963], No. 29598/63. Heading G1L. In a method of measuring the pressure of a fluid medium 2 having a high temperature a flexible rigidly mounted plate 5 is deflected by the medium pressure to move a member 6 towards a nozzle 9 supplied with compressed air at a constant pressure from a chamber 12 supplied with compressed air through a nozzle 8 and any alteration in pressure in the chamber 12 due to movement of the member relative to the nozzle 6 is recorded on a gauge 11.
Patent GB-1346198-A (GB)
Title: Production of penicillamine and its homologues
IPC: C07D499/04
Filed: 1971-06-24
Abstract: 1346198 Process for penicillamine and its homologues DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 24 June 1971 [3 July 1970 11 May 1971] 29635/71 Heading C2C The invention comprises a process for making penicillamine or a homologue thereof and also salts thereof, by reacting an aliphatic aldehyde, branched on the α-carbon, with sulphur and ammonia to form a #<SP>3</SP>-thiazoline (I), converting (I) by reaction with hydrogen cyanide into a thiazolidine - 4 - carbonitrile (II), converting (II) by mineral acid hydrolysis at below 80 C. into a salt of a 4-carbamoylthiazolidine (the free compounds are also described), and thereafter raising the temperature to above 80 C. to form a salt of a 4-carboxy-thiazolidine (III) and an ammonium salt (IV); (IV) is removed and (III) or the free acid is hydrolytically degraded to yield the desired product. The following intermediates are also prepared: 2-isopropyl-5,5- dimethylthiazolidine - 4 - carboxylic acid npropyl ester and penicillamine amide hydrochloride; these compounds arise from modifications of the foregoing process.
Patent GB-390448-A (GB)
Title: Improvements in or relating to gas turbine plants particularly for propulsion of ships
IPC: F02C7/36
Filed: 1932-10-24
Abstract: 390,448. Gas turbine plant. AKTIEBOLAGET MILO, 32, Kungsgatan, Stockholm. Oct. 24, 1932, No. 29698. Convention date, Oct. 24, 1931. [Class 110 (iii).] In a gas turbine plant, particularly for ship propulsion, extra power is obtained by clutching-in an additional compressor. The Figure shows two double-rotation turbines 1, 2 working in series. The turbine 1 drives compressors 3, 4, and the turbine 2 drives generators 5, 6, and a compressor 8. An additional compressor 7 may be clutched to the shaft of the generator 5, in which case the normal air inlet is closed by a valve 20. The air passes in series through the compressor 7 (when in use), compressors 8, 3, 4, air preheater 14, combustion chamber 16, turbine 1, combustion chamber 18, and turbine 2. A modification is described in which a single-rotation axial-flow turbine is used.
Patent GB-691167-A (GB)
Title: Thermally responsive electric switches
IPC: H01H1/14
Filed: 1951-12-19
Abstract: 691,167. Thermal switches. SOC. D'ETUDES ELECTRO-MECANIQUES. Dec. 19, 1951 [Dec. 22, 1950], No. 29773/51. Class 38 (v) [Also in Group XXXVI] A thermal switch comprises a bowed bimetal member 5 which is adjustably fixed at its centre and carries diametrically-opposed contacts 6 co-operating with fixed contacts 7 formed on plug pins 4. When heated to a certain temperature by the current through it, or by a heater, the bimetal snaps overcentre to open the contacts, which are reclosed by restoring the member manually by pressing on a flexible wall 2 of the casing, the wall having projections 10 acting on the edge of the member at two points at right-angles to the. line joining the contacts.
Patent GB-337543-A (GB)
Title: Improvements relating to wheel lathes
IPC: B23B5/34
Filed: 1929-10-02
Abstract: 337,543. Reed, F. W., and Craven Bros. (Manchester), Ltd. Oct. 2, 1929. Lathe drivers.-In wheel lathes arrangements for driving the wheels comprise a number of cams d, with serrated edges, carried upon conveying spindles c mounted in slides b capable of radial movement; the slides, attached to the face-plate a of the machine, are controlled by compression springs m. On bringing the side face of a wheel against the cams, the latter are forced inwards against torsion compression springs e until their edges engage the tyre gripping plate at p. The application of a cutting tool to the wheel as the face plate rotates causes the wheel to rotate slowly until the cams turn and grip the wheel, forcing the slides inwards until they bear hard upon the periphery of the ring h. Both wheels on an axle may be similarly gripped. According to the Provisional Specification, to ensure the cams working together, the slides are loaded by springs carried in a compensating ring, such ring being held normally in a central position by springs disposed between the ring and lathe spindle.
Patent GB-359676-A (GB)
Title: Improvements in or relating to primary electric cells and batteries
IPC: H01M2/34
Filed: 1930-10-06
Abstract: 359,676. Galvanic batteries. WELCH, A. P., 19, Lincoln Gardens, The Drive, Ilford, Essex. Oct. 6, 1930, No. 29868. [Class 53.] Cases ; connections.-In order to prevent unauthorized use of a battery the plug sockets 3 are provided with plugs 5 above which is a protective seal 7 of waxed paper &c. which is fixed below the apertures 4 in the casing. The paper sheet 7 may be secured to the underside of the lid 2 or it may be placed loosely above the cells and gripped round the edges by the lid when the latter is placed in position. The heads 6 of the plugs 5 may be flat or they may be provided with small upstanding points which pierce the seal 7 when a testing instrument is applied.
Patent GB-466548-A (GB)
Title: Process for the manufacture of laevo-ascorbic acid (vitamin-c)
IPC: C07D307/62
Filed: 1936-11-03
Abstract: The process described in the parent Specification in which laevo ascorbic acid (Vitamin C) is prepared from 2-keto-laevo-gulonic acid or its derivatives which are easily split with acids by heating in an acid medium is modified in that the reaction takes place in the presence of an inert diluent.  The preferred diluents are chloroform and dioxane.  In examples: (1) gaseous hydrogen chloride is dissolved in a mixture of ethyl alcohol and chloroform.  Diacetone - 2 - keto - laevo - gulonic acid is added, and the mixture boiled for 50 hours under reflux, when the insoluble ascorbic acid separates; (2) 2-keto-laevo-gulonic acid methyl ester is treated as in example (1); (3) diacetone-2-keto-laevo-gulonic acid is dissolved in dioxane, a small amount of concentrated aqueous hydrochloric acid is added and the mixture treated as in example (1). Specifications 425,198, 428,814, and 459,207, are referred to.
Patent GB-1001530-A (GB)
Title: Improved centre punch
IPC: B25D5/00
Filed: 1963-07-29
Abstract: 1,001,530. Centre punches. D. J. EVEREST. July 27, 1964 [July 29, 1963], No. 29896/63. Heading B4X. A centre punch comprises a base 10 having a pair of intersecting co-ordinates 12, 34 and a resiliently retracted centre punch 22 located accurately at the point of intersection of the co-ordinates. A transparent, circular base 10 of plastics material is slightly recessed on its lower face 11 and accurately inscribed with co-ordinates 12, 34. The punch is supported at separated zones for axial movement in a pair of concentric bushes 15, 17, the lower bush being secured in the base 10. A compression spring 29 is located between the upper end of the lower bush and a retaining circlip 28 on the punch. In a modification, Figs. 4-6 (not shown), a rectangular base provides co-ordinates on converging edges, the punch being secured to one corner of the base. In another modification the base comprises two diametrically opposed quadrants of a circle with the punch at the centre, the edges providing the co-ordinates.
Patent GB-850611-A (GB)
Title: Improvements in rotary malting equipment
IPC: C12C1/033
Filed: 1957-09-24
Abstract: 850,611. Malting apparatus. COLUMBIA MALTING CO. Sept. 24, 1957 [Sept. 24, 1956], No. 29966/57. Class 14(2) A malting apparatus has an outer imperforate housing, a perforate horizontal drum rotatably mounted in or with the housing, a perforate inner member extending longitudinally within the drum, an air discharge stack leading from the outer housing, a fan or blower for supplying air into the inner member, an air conduit connecting the fan or blower directly with the perforate inner member, means for supplying air to the fan or blower, means for introducing grain into the drum and means for discharging grain from the drum. Grain to be malted is admitted through a series of loading openings 21 (Fig. 1) into a rotatable drum 11 formed of perforated, inwardly concave arcuate plates (Fig. 3, not shown) and resting on rollers 15 within a housing 19. Air entering a tempering chamber 40 either from the atmosphere or recirculated as indicated in the figure by arrows, or both, depending on the position of the damper 45, is heated or moistened according to requirements by burners 47 and sprinklers 49, and the heated or moistened air is forced by a fan or blower 33 into a perforated cylindrical member 39 (Fig. 2). The member 39 is supported at the right end of the drum by an imperforate wall 61, but its left conically-formed end 65 is supported from the drum frame by radial tensions rods 63. Within the member 39 there slides a perforated cylindrical member 67, whose opposite end is supported on a movable partition 69. The left end of the drum 11 is open but is cross-connected by transverse 1-beams 71 which carry a portion of a partition operating mechanism (Fig. 9) by which the partition 69 can be moved longitudinally through the movement of an hydraulicallyactuated cylinder 95. Water for the steeping and germinating of the grain is introduced through a perforated pipe 157 and a perforated pipe 163 slidingly fitted within the pipe 157 (Fig. 8, not shown); both pipes are capable of rotation with the drum. The partition 69 is moved from an inward position outwardly during the loading of the drum with grain, and again during the steeping and germinating when the grain increases in volume, while for the drying and for discharge of the malted grain into a conveyer trough 29 the partition is moved inwardly; a desired level of grain over the members 39 and 67 is thereby maintained at all times. Two motors (Fig. 5, not shown) of different power may be employed alternately to suit the varying quantities of air required in the different stages of the malting. In a modified construction, (Fig. 10), the perforated drum 11 rotates with an imperforate housing 182.
Patent GB-830538-A (GB)
Title: Motor vehicle suspensions
IPC: B60G11/12
Filed: 1957-09-26
Abstract: 830,538. Resilient joints; road-vehicle suspensions. FORD MOTOR CO. Ltd. Sept. 26, 1957 [Sept. 27, 1956], No. 30228/57. Classes 108(2) and 108(3) In a vehicle undercarriage having a longitudinal member such as a trailing arm or a leaf spring attached to the frame by an eye engaging a stud on the frame resilient means are interposed between the stud and eye to take up torsional and compressive stresses. A spring 26 has an eye portion 27 engaged round an indented part of a retainer member 28. Interposed between the end parts of the retainer 28 and a stud 31 fixed to a frame 21 are rubber or like resilient toroids 29, 30 fitted or attached sufficiently tightly to the stud 31 to resist turning between it and the retainer. The toroids 29, 30 may be hollow with exhaust vents to the atmosphere or may be sealed with any desired degree of internal pressure.
Patent GB-229768-A (GB)
Title: Process for producing power gas and phosphorus
IPC: C01B25/20
Filed: 1923-12-01
Abstract: A gas producer is charged with a mixture of fuel and phosphates so that in addition to a carbon monoxide substantially free from carbon dioxide, phosphorus or phosphorus pentoxide is also obtained.  The gas generated contains phosphorus vapour, the phosphorus being separated as such, or the gas may be burned to give meta-phosphoric acid or phosphorus pentoxide. Orthophosphoric acid may be formed by the action of steam on the meta-phosphoric acid.  Specifications 49/79, [Class 51, Furnaces and kilns], 191,630, and 191,692 are referred to.
Patent GB-346262-A (GB)
Title: Improvements in or relating to watertight doors, specially applicable to watertight doors fitted to ships' bulkheads and the like
IPC: B63B19/00
Filed: 1929-10-07
Abstract: 346,262. Operating clutches. ALLAN' J. E., 43, Waterpark Road, Prenton, FREEMAN, S. B., 22, Palm Grove, both in Birkenhead, and WATKINS, W. P., 54, Roseneath Road, Battersea, London. Oct. 7, 1929, Nos. 30299/29, 30300/29, and 20979/30. [Class 80 (ii).] In a system for pneumatic operation of doors, the motor shaft m<1> is connected to the door-operating shaft D by clutch members C<SP>2>, c<3> operated through a lever C6 by a diaphragm or piston c<13> in a cylinder c<2o>. Air is admitted gradually to the cylinder through pipe c<1> and needle valve c<21> at the same time as the motor is started, the ball valve C17 being held closed by the air pressure, so that the clutch does not engage until the motor has run up to speed. The clutch is disengaged by a spring C23 when:the air pressure is released by the return to normal position of the motor supply valve, the air in the cylinder C20 exhausting through the ball valve c<17>.
Patent GB-364202-A (GB)
Title: Improvements in or relating to lifts for automobiles
IPC: B66F7/24
Filed: 1930-10-10
Abstract: 364,202. Stands or supports for vehicles. BOX, W. A., 3309, Blake Street, Denver, Colorado, U.S.A. Oct. 10, 1930, No. 30358. [Class 79 (iii).] A tilting runway or platform for raising motor vehicles above ground level for overhauling &c. is provided with means, for example, a pneumatic or hydraulic brake, for cushioning the rocking movement, preferably forming a positive support for the runway when it reaches the horizontal position.. The runway comprises a pair of flanged rails 13 connected at their forward ends by an angular crossbrace 14 and'provided with trunnions 18 seating in semicylindrical bearings 10 in the upper ends of hollow standards 7 secured to foundations 6 and reinforced by webs 9. One end of the runway normally rests on the ground, the other end 17 being curved to arrest the movement of the vehicle. The cushioning means comprises a dashpot 19 pivoted to a foundation plate 22, the upper end of the piston rod 25 thereof being pivoted to a bracket 27 on the cross-brace 14. The liquid may pass through orifices in the piston or through a byepass pipe 20 with a regulating valve 21. The piston rod may form a positive support for the runwav when this reaches the horizontal. It may be secured in this position by a chain 30 engaging a hook 31 on the cross-bar. A spring may be substituted for the fluid pressure cushioning means.
Patent GB-703885-A (GB)
Title: Improvements relating to cylinder heads of liquid-cooled internal combustion engines
Inventor: THOMAS WALTER JAMES
IPC: F02B1/04
Filed: 1951-12-29
Abstract: 703,885. Castings. MORRIS MOTORS, Ltd. Nov. 26, 1952 [Dec. 29, 1951], No. 30396/51. Class 83 (1). [Also in Group XXVII] The cylinder head 1 of a liquid-cooled internal combustion engine is cast to present a facing 2 formed with elongated openings 4 so disposed as to afford access for a fettling-tool to all coolant-passage zones 5 adjoining the engine inlet and exhaust passages 7. The facing 2 receives a conduit 8 which may co-act therewith to blank-off the openings 4 and openings (not shown) in the conduit for fettling thereof.
Patent GB-962408-A (GB)
Title: Improvements in and relating to detectors for broken, slack or displaced threads
IPC: B65H63/028
Filed: 1962-08-08
Abstract: 962,408. Thread-detectors. R. G. McCOY. May 24,1963 [Aug. 8, 1962], No. 30431/62. Headings D1D, D1F and D1M. A detector for broken &c. threads comprises an electrically-conductive plate 1, normally supported by the thread, which when the thread fails, pivots to contact one or more conductors 12 to complete a circuit to actuate a stop-motion or warning-signal, the circuit incorporating surfaces which are continuously moved to displace dust and fluff therefrom. As shown, the surfaces are those of the conductor(s) 12 and a shaft 5 on which the plate is pivoted, which are continuously rotated. The yarn is supported in a crook 6 bent out of the plate, which pivots by the distribution of its weight about its axis. A stop 11 and washers. 4, 8 are provided. A series of such stoppers may be arranged on a common shaft 5; if it is desired not to use one of them, the corresponding member 12 is removed so that the plate moves to the position shown in broken lines, a cut-away part 7 preventing fouling of the thread. The device may be used for warp threads: if one is trapped on a beam, it is lifted out of the crook by the rotation of the beam to free the detector to rock.
Patent GB-930039-A (GB)
Title: Improvements in or relating to the manufacture of laminates
IPC: C04B20/10
Filed: 1961-08-23
Abstract: An organosilicon compound, or a condensation product thereof, used to size glass fibres in making laminates, has the formula (A):-(HO)mRmSi(MOH)pO2- 1/2 (n + m + p) wherein M is a divalent substituted or unsubstituted hydrocarbon group and R is a substituted or unsubstituted hydrocarbon group, and m, n and p are numbers defined by m = 0,1 to 3 n = 0 to 2 p = 0,1 to 2 and (n + m + p) = 1 to 4.  The above compounds may be replaced by compounds of formula (B):- <FORM:0930039/IV(a)/1> where R1 is a substituted or unsubstituted hydrocarbon group.  Examples of the group M are methylene, ethylene, propylene, monochloropropylene, butylene and p-phenylene groups; and examples of the group R are methyl, ethyl, vinyl, phenyl, alkylphenyl and monochloropropyl groups.  The compounds are used in aqueous or other solution.  Specified organosilicon compounds of formula (A) are: g -hydroxypropylmethylsilandiol, g -hydroxypropylsilantriol, Vinyltri-(2-methoxyethoxy)-silane. Specified compounds of formula (B) are g -acetoxypropylmethyldiethyoxysilane, g -acetoxypropyltriethoxysilane and a -acetoxybutyltriethoxysilane. When compounds of formula (B) are used the compound must be at least partially saponified into the corresponding compound of formula (A) by the presence of an acid. Some of the hydroxyl groups directly bonded to silicon in the compounds may be replaced by halogen or alkoxy groups.  The compounds may also be used in admixture with vinyl- or allyl-silyl compounds and/or with carboxylic acids having a double bond such as maleic, fumaric, or acrylic acid, or phthalic acid monoallyl ester.  Halogen-substituted silanes require the addition of an acid-neutralizing or buffer agent to the composition.
Patent GB-226807-A (GB)
Title: Improvements in clothes racks
IPC: A47G25/06
Filed: 1924-12-18
Abstract: 226,807. Michoud, M. F. Dec. 29, 1923, [Convention date]. Garment stands.-A garment stand comprises a pair of curved arms 1<a> for coats, and a pair of straight arms 1<b> for trousers. The arms 1<a> are carried on uprights 2 which are connected at their lower ends by a bootshelf 3. The arms 1<b> may terminate in receptacles 4 for small articles. In another form a pair of curved arms such as 1<a> are carried by each upright 2, and stand out perpendicularly to the plane of the uprights, which are connected at the top by one or more straight bars In yet another form a single claw stand carries arms such as 1<a>, 1<b>. The curved arms and straight bars are integral with one another.