baber/WOPTO huggingface dataset:
Patent GB-780944-A (GB)
Title: New process for carrying out acylations
Filed: 1953-11-13
Abstract: A process for carrying out acylations comprises reacting a thiol-carboxylic acid ester with a primary or secondary amine or an alcohol in presence of a heavy metal salt, whereby the corresponding amide or ester is formed.  The reaction is preferably carried out in an aqueous medium and at a pH value ranging from 3 to 11.  Heavy metal salts are preferably those of silver, mercury, lead and copper, for example, the nitrates, chlorides, sulphates or acetates thereof. The amine or alcohol and the thiol-carboxylic acid ester reactants may be aliphatic, aromatic, araliphatic or heterocyclic; more especially an aliphatic aminocarboxylic acid is reacted with an acylaminoalkyl-thiol-carboxylic acid ester to produce a peptide. Thiolcarboxylic acid carboxyalkyl esters, thiolcarboxylic acid acylaminoalkyl esters and acylaminoalkyl - thiol - carboxylic acid carboxyalkyl esters are also preferred reactants. Specified amine reactants are glycine, choline, aniline, benzylamine, aminopyridine, ethylene diamine, isonicotinic acid hydrazide, alanine, serine, cystine, aminobutyric acid, methionine, valine, leucine, phenyl-alanine, tyrosine, tryptophane, histidine, d -carbobenzoxy-ornithine, asparagine, asparaginic acid, glutamic acid, proline, diglycine, alanyl - glycine, methionyl-glycine and glutathione.  Methanol is specified as an alcohol reactant.  The examples describe the preparation of hippuryl-glycine, benzoyl-glycine, hippuric acid and its methyl ester, benzanilide and acetyl-choline.  Pantetheine is formed simultaneously from (+)-S-benzoyl- and (+)-S-acetyl-pantetheine during the above reaction.  Thiol-hippuric acid carboxymethyl, carboxyethyl and carboxypropyl esters are prepared by reacting the mixed anhydride from hippuric acid and carbonic acid monoethyl ester with triethylamine and an ethyl acetate solution of thioglycollic, b -thiol-propionic or g -thiol-butyric acid respectively. Carbobenzoxyaminomethyl - thiol - carboxylic acid carboxymethyl ester is prepared similarly.  Specifications 693,524, 693,525, 699,678, 700,495, 749,122 and 780,943 are referred to.
Patent GB-1442152-A (GB)
Title: Planispheres
IPC: G09B29/00
Filed: 1973-07-03
Abstract: 1442152 Planispheres W A EISENHAUER W P ELLWOOD and L E EISENHAUER 3 July 1973 [3 July 1972] 31716/73 Heading G4B A planisphere, enabling navigational as well as astronomical calculations, comprises a disc 24, Fig. 3, bearing a map of the position the stars of the northern hemisphere would have, looking down at them, if the stars were projected from their celestial positions towards the centre of the earth, a reference line (63, not shown) indicating the radial position of the first point of Aries on the map, a disc 22, Fig. 8, overlying disc 24 and bearing a map of the world, a reference line 50 indicating the radial position of Greenwich on the map of the world, and a disc 26 overlying disc 22 and bearing horizon indications 34 for respective latitudes. Disc 24 also bears a date scale 56, degree scales 58, 62, and an hours of sidereal time scale 60. A disc 14, Fig. 3, bears navigation east and west scales 92, 94 and underlies disc 24. A reference rule 28 (not shown) overlies disc 26. The rule, disc 26 and disc 22 are transparent. On the other side of disc 14, which is the largest diameter disc, are further discs, Fig. 2 (not shown), including a Greenwich mean time and sun angle disc, discs for standard and local time, and discs similar to discs 22, 24, 26, except that this disc 24 bears a map of the positions of the stars of the northern hemisphere as viewed from earth, Fig. 4 (not shown). The other (hidden) sides of discs 24 may bear corresponding ground position and overhead star maps pertaining to the southern hemisphere, Figs. 5 and 6 (not shown), so that the device may be adapted for use in that hemisphere by removing the central pivot (not shown), common to all discs/rules, inverting both discs 24 and re-assembling the device. Corresponding discs or rules on opposite sides of the largest disc 14 may be connected together in pairs.
Patent GB-785400-A (GB)
Title: Coarse and fine follow-up measuring systems
Inventor: MESH THEODORE JULIUS
IPC: G05D3/14
Filed: 1955-11-07
Abstract: 785,400. Measuring systems. GILBERT & BARKER MANUFACTURING CO. Nov. 7, 1955, No. 31727/55. Class 37. [Also in Group XXXVIII] An automatically balanced potentiometer system containing coarse and fine balancing elements and indicators is fed with a constant superimposed A.C. voltage to set the receiving fine potentiometer to zero when the balancing circuit is broken. As shown, for measuring the depth of liquid in each of a group of tanks, each tank has a float operating the sliders of two potentiometers 1, 2 connected via a selector switch S to two receiving potentiometers 5, 6. Potentiometers 1, 5, indicating e.g. inches, comprise continuously-wound ring potentiometers with a small gap, fed with D.C. from a power source P, and interconnected so that a difference in potential between sliders 3 and 7 is fed through an A.C. bridge C1 to bias rectifiers 37, 38 whereby the bridge is unbalanced and an A.C. output is obtained which, after amplification at A1, is fed to a motor M1 to drive the slider 7 and a pointer 11 until balance is regained. Potentiometers 2, 6.indicating, e.g. feet, are similarly interconnected via bridge C2 and amplifier A2, and rebalanced by motor M2 also driving pointer 12, but the unbalance D.C. potential between sliders 4, 8 is opposed by a voltage derived from slider 7 of the inch potentiometer 5 so that the potential difference between the sliders 4, 8 of the foot potentiometers is only applied to bridge 02 when slider 7 of the inch potentiometer 5 is in its zero position at the end of a complete revolution, so that pointer 12 of the foot indicator moves in unit steps. A small A.C. voltage is fed to the first valve 85 of amplifier A1 from a winding 82 of the main power transformer 25 which causes slider 7 to be driven to the zero position if slider 3 at the transmitter should be located in the gap of the potentiometer winding.
Patent GB-1424077-A (GB)
Title: Rotary positive-displacement pumps
IPC: F04C15/06
Filed: 1973-07-03
Abstract: 1424077 Rotary positive-displacement devices TRW Inc 3 July 1973 [7 July 1972] 31732/73 Heading F1F In a pump which may be of the slipper-vane type and as particularly described is substantially identical with that described in Specification 1061088 deflection of the pressure plate 30 into contact with the rotor 24 is obviated by a gap between this plate and the separator plate 32. The gap may be due to a recessed portion 85 between lands 87, 88 circumjacent outlet ports 74.
Patent GB-472575-A (GB)
Title: Improvements in means for suspending and guiding sliding doors
IPC: E05D15/06
Filed: 1936-11-20
Abstract: 472,575. Rectilinear-motion bearings. VOSTER, R. Nov. 20, 1936, No. 31775. [Class 12 (i)] [Also in Groups X, XXV, and XXX] A sliding door of the kind which is suspended on rectilinear-motion ball bearings is provided with runners 8 having V-shaped ball-engaging grooves 6, 7, and with fixed carriers 1 having concave ball-engaging grooves. The pairs of balls travel between pairs of pins 9, 10, passing through the runners. The suspension members 12, 13 have dovetail slots through which the bolts 16, 17 are passed, and the nuts 18, 19, bolt-heads 22, 23, and washers 20, 21 have rounded engaging surfaces to allow relative movement for vertical alignment of the door when mounting.
Patent GB-865234-A (GB)
Title: Improvements in or relating to appliances for use particularly by invalids
IPC: A47B23/00
Filed: 1959-09-18
Abstract: 865,234. Invalids' trays or tables. DAVIDSON, P. B. Sept. 18, 1959, No. 31821/59. Addition to 865,233. Class 52(3). The table of the parent Specification is modified by making the pivoting end pieces of the legs lockable in the erected position. As shown, slot 14 enables tongue 10 of pivoted end piece 9 to be moved upwards into engagement with locking strip 15 having ends 17 to prevent pivotal motion about bolt 12 which is secured by a wing nut. In anotner form (Fig. 6, not shown) erection by means of a hinge brings two plane surfaces into abutment and folding is prevented by a pivoted strut.
Patent GB-617730-A (GB)
Title: Improvements relating to pressure charged internal combustion engines
IPC: F02D1/00
Filed: 1946-10-28
Abstract: 617,730. Regulating. CROSSLEY MOTORS, Ltd., and WORRALL, W. H. Oct. 28, 1946, No. 31871. [Class 7 (vi)] An accelerator-pedal actuated rod h moves the fuel-pump control rod through a lever g pivoted about a cross-head e movable in a slot f by a rod d actuated by a piston c subject to the blower delivery pressure, the slot f being arranged parallel to the rod d at idling so that fluctuations in blower pressure have no effect in this position. A recess m prevents leakage of pressure past the piston, and at the maximum permissible blower pressure a byepass valve k opens, whereby piston c is raised to reduce the fuel supply and hence the engine speed.
Patent GB-955435-A (GB)
Title: Electrical switch mechanism
IPC: H01H19/58
Filed: 1961-09-05
Abstract: 955,435. Mechanical switches, without quick action. TEKTRONIX Inc. Sept. 5, 1961 [June 12, 1961], No. 31879/61. Heading H2B. Transmission lines (e.g. coaxial cables) are switched substantially without introducing reflections by means of a modified rotary switch of known type 20 comprising an insulating annular plate carrying fixed contacts 40 of the spring clip type co-operating with bridging segments on a central disc (Figs. 2 and 3, not shown), arranged in the same plane and rotatable by a shaft 12 journalled in a support plate 10 with the usual locating means. Conductive plates 18 and 24 are positioned by insulating spacers 22, 26 so as to lie close on either side of the assembly 20 and are connected to the outer, or grounded, conductors of the transmission lines to be switched, while the signal-carrying conductors are connected to the contacts 40. Thus the switch may have substantially the same characteristic impedance as the lines. Whilst a change-over switch is described it is stated that more contacts may be provided with some loss of symmetry and matehing.
Patent GB-284826-A (GB)
Title: Improved process and apparatus for the wet separation of earth, earthy material, ores and the like
IPC: B03B5/62
Filed: 1926-12-16
Abstract: 284,826. Houdijk, A. C. Dec. 16, 1926. Washing - apparatus with screens; upward current classifiers; sta tionary vessel wetseparating apparatus, -A process for the wet separation of heavy and light, or coarse and fine particles from earthy materials, ores, &c. consists in passing the material in a fluid stream through a horizontal closed pipe furnished with means for separating the sedimenting constituents which axe carried away by a separate stream. In the form shown in Fig. 2, the heavy material passes through a grating 5 and is taken away by a separate stream supplied by a branch 6. The separated material may be further divided by the provision of a horizontal partition 2 separating the lower pipe into upper and lower branches as shown in Fig. 3, or by another grating in the lower pipe through which the heavy constituents sink and are taken off by another auxiliary stream. In a further modification the pipe line is fitted with a number of gratings placed at intervals along its length. The liquid pressures are equal on either side of the gratings.
Patent GB-655965-A (GB)
Title: Improvements in or relating to units for buildings
IPC: E04C3/08
Filed: 1948-12-09
Abstract: 655,965. Floors; ceilings; walls; lattice girders. CHADWICK. L. R. Dec. 9, 1948, No. 31931. [Class 20(iv)] A building unit for making floors, ceilings or walls consists of a skeletal framework to which is secured the surfacing panels, the framework being in the form of a single row of pyramidal frames having their bases coplanar and connected together and their apices also coplanar and interconnected, the panels forming the wall ceiling or floor surface being secured to the bases. In the form shown, the unit comprises two parallel struts 10 connected by cross struts 11 and 12. From each corner of the square frames thus formed, struts 13 extend to meet at apices which lie above the mid point of each strut 12, the apices being interconnected by a strut 14. Bracing struts 15 connect strut 14 to each strut 11. A panel 16 of flooring or wall surfacing material is secured to and serves to brace the base of each pyramid. The struts are made of extruded aluminium alloy or steel sections, the side struts 10 being formed with tongues and grooves, Fig. 4, (not shown), so that where a number of units are laid side by side to form a floor, they can be interlocked along their edges. Ceiling panels are secured to struts 14.
Patent GB-319640-A (GB)
Abstract: 319,640. Grafham, A. J., and Priest, T. June 25, 1928. Mudguards rotating with wheels.-To protect sidesplash, one or more rubber &c. rings b of tapering cross-section may be secured to, or built-up with, one or both side. walls of the tyre a, spacing- rings x being fitted between the ring or rings and the tyre.
Patent GB-657145-A (GB)
Title: Improvements in and relating to magnetic sound recording mediums
IPC: C09D5/23
Filed: 1948-12-10
Abstract: 657,145. Making magnetic sound-recording wire. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 10, 1948, No. 32016. Convention date, Dec. 16, 1947. Drawings to Specification. [Classes 83 (ii) and 83 (iv)] Altering physical structure.-A method of producing a sound-recording and reproducing wire comprises cold-working a recrystallized wire of an alloy containing 60 per cent copper, 20 per cent nickel, and 20 per cent iron to a dimension of about 0.05 inch, artificially ageing at 600‹ C. for about one hour, cold working to a diameter of 0.008 inch to 0.020 inch. overageing at 700‹ C. for about one hour, and further coldworking to about 0.004 inch diameter.
Patent GB-1398619-A (GB)
Title: Method and device for processing video signals
IPC: H04N1/417
Filed: 1972-07-10
Abstract: 1398619 Video signal redundancy reduction RICOH KK 10 July 1972 [10 July 1971] 32153/72 Heading H4F A video signal derived by scanning a pattern, e.g. an alphanumeric pattern, is encoded to reduce its redundancy by comparing bit by bit or elemental area by elemental area the video signals of adjacent scan lines which have been quantized into binary form so as to produce a sequence of coincidence "0" and non- coincidence "1" signals, and run-length encoding the groups of consecutively occurring coincidence and non-coincidence signals into binary coded form, respective identifying codes being associated with each run of coincidence and non-coincidence signals, e.g. a binary "0" for each coincidence run and a binary "1" for each non-coincidence run. The number of bits used to represent each run of coincidence (non-coincidence) signals in binary code is preferably selected to be equal to the number of bits required to represent the run of coincidence (non-coincidence) signals that statistically will most frequently occur, e.g. three bits for coincidence signals and one bit for non- coincidence signals. If the number of bits required to represent a run of coincidence or non-coincidence signals in binary code is greater than the selected number then the binary code is split into a plurality of portions each consisting of the selected number of bits and each preceded by the relevant identifying code.
Patent GB-508006-A (GB)
Title: Improvements in means for shaping and trueing the operating surfaces of grinding wheels used for form-grinding
IPC: B24B53/00
Filed: 1937-11-23
Abstract: 508,006. Trueing grinding-wheels. COVENTRY GAUGE & TOOL CO., Ltd., and HARLEY, S. J. Nov. 23, 1937, No. 32186. [Classes 60 and 124] A wheel shaping or trueing attachment a for a form grinding-machine is mounted between the work centres b, c of the machine, and in order to vary the depth of the form cut by the tool a<1> on the wheel, is adjustable angularly about the centres by a screw d. The screw is threaded into a projection e on the main slide f of the machine, the upper end of the screw bearing on an abutment g on the attachment, which is held down by a spring h. In order to vary the angle of the form to be cut, the centre c is adjustable laterally by a screw m, the centre being mounted on a transverse slide l. The form is produced by a compound movement of the tool a<1>, one movement being produced by movement of the main slide f carrying the centres, and the other movement being derived from a cam, which operates a slide a carrying the tool a' and is driven by a peg u on the driving-head v and an arm w on the cam spindle t. Specifications 398,841, 412,464, 461,969, and 469,876 are referred to.
Patent GB-1098764-A (GB)
Title: Apparatus for causing, by means of hydraulic pressure, a relative linear displacement between a number of columns and a body that can be moved along them, such as a pontoon
IPC: E02B17/08
Filed: 1966-07-18
Abstract: 1,098,764. Lifting jacks. WERF GUSTO N.V. July 18, 1966 [July 26, 1965], No. 32237/66. Heading B8J. [Also in Division El] Each of a plurality of jacks for raising a pontoon 1 comprises a square column 2 of open framework construction provided at each of the corners with a double series of teeth 3. Driving pawl members 4 and blocking pawl members 5, respectively supported in crossheads 6, 7 are adapted to be moved into and out of engagement with different series of the teeth 3 by means not shown. The arrangement results in a stand 9 of smaller height as compared with the arrangement of the driving and blocking pawl members one above the other, using the same series of teeth as described in Specification 850,143.
Patent GB-812616-A (GB)
Title: Improvements in or relating to the production of gases
IPC: C12M1/107
Filed: 1956-10-23
Abstract: Apparatus for producing methane by the decomposition of organic matter comprises a container comprising a body portion for the reception of the organic matter and a lid at the upper end of the body portion and adapted to provide a gas-tight closure when the apparatus <PICT:0812616/IV (b)/1> is in use, the upper face of the lid being formed with a multiplicity of corrugations or ridges.  The corrugations are preferably linear and extend in mutually parallel directions across the lid in a geographically north and south direction, the upper surface of the lid may be treated to increase its heat absorbing properties, e.g. by blackening it.  The process is especially applied to the production of methane by the anaerobic fermentation of vegetable matter such as straw, coffee pulp, maize cores or sisal waste mixed with animal manure or artificial manure. The lid may be made from galvanized corrugated iron sheeting of 24 gauge having a pitch of about 3 inches, and a peak to peak amplitude of about 3/4 inch.  In an example, a rectangular silo 11 comprising vertical side walls 12 made of building stones, concrete, or bricks is fitted with a corrugated iron sheeting lid 16 which is provided with four handles 19 to facilitate its removal.  A rim 23 is formed around the interior of compartment 14 to prevent the lid from dropping into the silo when no gas is being produced.  Gas is withdrawn through outlet pipe 27 and may be stored in a gas-holder as described in Specification 812,615, [Group XXIX].  The silo is fitted with a water-inlet pipe (not shown) and an outlet pipe 29.
Patent GB-366074-A (GB)
Title: Improvements in feed control system for oil engines
IPC: F02D1/00
Filed: 1930-10-28
Abstract: 366,074. Oil engines. SUPERIOR ENGINE CO., Springfield, Ohio, U.S.A. Oct. 28, 1930, No. 22391. Convention date, Jan. 27. [Classes 7 (iii) and 7 (vi).] In a liquid fuel injection engine of the type in which speed control is effected by a governor which regulates the quantity of fuel injected, means are provided for limiting the maximum quantity of the injection independently of the governor action. Means are also provided for varying the injection pressure simultaneously with the adjustment of the governor loading spring. The lift of a mechanically-actuated injection valve 97, Fig. 8, is determined by a wedge 81 operated by a rod 62, Fig. 1, which is moved through a spring 65 by a lever 66 on a shaft 67 which is rocked by the governor sleeve ; the opposite end of the lever 66 is coupled to a dashpot damping device 71. The limit of travel of the wedge 81 in the direction of increasing valve lift may be fixed by a manually operated fuel quantity control lever 54 which engages with a notched quadrant 57, the lever 54 being secured to a shaft 58 to which is fixed another lever 59 which engages a block fixed to the wedge-operating rod 62. Fuel is supplied to the injector by a pipe 4 leading from an engine driven pump 2, a branch pipe 5 leading from the delivery pipe back to the pump inlet through a spring- loaded valve 8, the loading of which is adjusted by a cam and rocker 16, the cam being secured to a shaft 23 which is moved by a manually operated fuel pressure control lever 26; the setting of the lever 26 is fixed by a notched quadrant 28. Attached to the shaft '23 is an arm 32 which engages a cap 34 housing the upper end of a governor spring, thus the setting of the governor for the maintenance of a predetermined engine speed is effected simultaneously with the adjustment of the fuel injection pressure. The governor, which is of the centrifugal type, is housed in a casing 51 which may be filled with oil ; it is driven from the cam shaft 42c through gears 42a, 42b.
Patent GB-1457157-A (GB)
Title: Mouldable electrically-conductive thermoplastic resin compo sition
IPC: C08L33/04
Filed: 1974-07-22
Abstract: 1457157 Electrically conductive thermoplastics compositions MITSUBISHI RAYON CO Ltd 22 July 1974 [23 July 1973] 32421/74 Headings C3P and C3R Mouldable electrically conductive thermoplastic compositions comprise (A) 95 to 30 weight per cent of a resin compositions comprising (i) 100 parts by weight of a polyolefin resin having good affinity for carbon black and (ii) 5 to 900 parts by weight of thermoplastic resin selected from polyamides, polyesters, polystyrene and polymethyl methacrylate and having poor affinity for carbon black and the polyolefin resin and (B) 5 to 70 weight per cent of conductive carbon black. The polyolefin may be derived from ethylene, propylene, butene, pentene or 4-methylpentene-1. The carbon black may be furnace, acetylene or channel black. Examples describe compositions comprising polypropylene or polyethylene and nylon-6, polyethylene terephthalate, polystyrene or polymethyl methacrylate.