baber/WOPTO huggingface dataset:
Patent GB-327157-A (GB)
Title: Improvements in the manufacture of cellulose ethers
IPC: C08B11/08
Filed: 1928-12-28
Abstract: 327,157. Dreyfus, H. Dec. 28, 1928. Cellulose ethers. - The capacity of hydroxyalkyl ethers of cellulose for dissolving or swelling in water is reduced by completely or partially etherifying the hydroxy groups thereof. Etherification is preferably conducted so that the quantity of water present is not greater than four times the weight of the cellulose in the cellulose ether, and the quantity of alkali is equal to 19 or more times the weight of the water. The water present may be reduced by adding substances capable of combining chemically with it. Contact substances such as copper powder and diluents such as benzene may be present. The hydroxy groups may be etherified by means of the same or different alkyl or aralkyl groups. In an example tri-(hydroxyethyl)-cellulose is impregnated with 50 per cent caustic soda solution and allowed to stand for 1-2 hours. Benzene is added and then quicklime is added gradually while the mass is cooled. The ethylation may be effected by means of diethyl sulphateadded all at once or gradually. The ethoxy-ethyl cellulose produced is insoluble in water. Speci- 6cations 164,374, 164,375, 187,639 and 277,721, are referred to.
Patent GB-303124-A (GB)
Title: Separation of mixed gaseous components
IPC: B04B5/08
Filed: 1928-12-28
Abstract: 303,124. Mazza, E. Dec. 28, 1927, [Convention date]. Density separators.-A centrifugal machine for the reparation of gases has a rotary drum provided with separators at its circumference, and with peripheral outlets so arranged that the lighter components and the heavy components are discharged at different levels. The drum T is carried by the shaft Z and has two rows f<1>, f<2> of apertures in its cylindrical wall. Inside the drum wall a number of guide plates r, r<1>, r<11> with others t, t<1>, t<11>, s<1> are arranged in association with a, column c which has a groove g<1> extending its full height. The gaseous mixture is passed into the drum T, its passage being assisted by the fan V which keeps the interior of the drum under pressure. During the passage of the gas through the curved channels formed by the guide plates, the heavier components pass through the gaps on the outer sides of the channels and pass through one set f<2> of peripheral outlets into the fixed casing 0; the lighter components pass through the other set f<1> of peripheral outlets into the other part of the casing. The separated components are kept apart by the partition D<1> and are discharged through the outlets S, S<1>.
Patent GB-999756-A (GB)
Title: Filling cartons with plastic substances
Inventor: WILLIAMS GEOFFREY ERNEST
IPC: B65B61/24
Filed: 1960-11-11
Abstract: 999,756. Filling cartons. UNILEVER Ltd. Nov. 9, 1961 [Nov. 11, 1960], No. 38807/60. Heading B8C. In a method of filling a carton with a flowable plastic substance, e.g. ice-cream, a pair of opposite sides of the carton are squeezed at substantially the same time as the filling of the carton is completed. The consequent reduction in side bulging facilitates freezing by improving contact with the freezer plates. A carton A is brought to rest under a filling nozzle 1 which moves downwards into the carton. Simultaneously, a plate 6 is moved near the side 31 of the carton and as the carton fills the nozzle is withdrawn. The next carton B is moved by arms 2 and 3, towards the nozzle and the carton A is squeezed between the plate 6 and the arms 2 until a friction coupling slips. The plate 6 is then cleared from the path of the carton. The arms 2, 4 &c. may be flat plates. The leading edge of the nozzle wipes any excess of the substance off into the next carton to be filled.
Patent GB-857074-A (GB)
Title: Improved methods of making bearing material
IPC: F16C33/14
Filed: 1956-12-20
Abstract: A strip of bearing material is made by forming on one face of a strip of strong backing metal a sintered sponge layer of copper-tin bearing metal containing 1-2% of tin, the balance being copper, and having cavities that are predominantly 15-50 microns in size, and then filling substantially all of the cavities with babbitt metal.  A mixture of copper powder and powder of copper-tin alloy is spread on the upper surface of the backing strip, the copper-tin alloy particles all passing 100 mesh Tyler sieve and the copper particles all passing 150 mesh sieve and about 50% passing 325 mesh sieve.  The powder layer is sintered, e.g. at 1830-1900 DEG F. for 1/3 -2 minutes to produce a porous layer having, e.g. 30-40% voids.  The coated strip is cooled to 100-1200 DEG F. and molten babbitt metal at a temperature in the range 700-750 DEG F. is applied in a reducing atmosphere, excess babbitt being wiped off down to the sponge layer, the strip being cooled rapidly from below to cause a partial vacuum in the cavities to pull the molten babbitt into the small cavities. Finally the strip is cooled and a thin layer of babbitt and sponge is removed from the surface.
Patent GB-906044-A (GB)
Title: Improvements in and relating to electric indicating instruments
Inventor: RICHARDS WILFRED ARTHUR
IPC: G01R11/02
Filed: 1957-12-16
Abstract: 906,044. Indicating-apparatus. ENGLISH ELECTRIC CO. Ltd. Dec. 10, 1958 [Dec. 16, 1957], No. 38988/57. Class 106 (4). [Also in Group XXXVI] An electric indicating instrument, identical with that disclosed in Specification 906,046 with reference to Figs. 1 and 2, is described, wherein the magnetic system comprises an outer yoke 15 and an inner pole 12 which, in conjunction with a pole piece 16, defines a part annular gap. The claims are directed solely to the zero adjusting linkage comprising a knob 4 having an eccentric peg 39 engaging a transverse slot in a sliding member 40 from which a peg 43 extends to engage a frictionally mounted toothed wheel 37 secured by a depending tongue 36 to the outer end of the usual controlling hair spring 35. Specification 906,045 also is referred to.
Patent GB-1055576-A (GB)
Title: Process for preparing even dyeings on cellulose materials in a long bath
IPC: C09B47/32
Filed: 1963-10-03
Abstract: Dyes containing "onium" groups are prepared in the Examples: (1) and (5) phthalocyamines of the formulae <FORM:1055576/C4-C5/1> (2) 2 mols of diazotized 4-amino-benzenesulphonylaminoethyl chloride are coupled with 1 mol of 2,6-bis(acetoacetylamino)-benzthiazole and subsequently reacted with pyridine, (3) 2 mols of diazotized 4-aminobenzene-ethylsulphone - b  - trimethylammonium sulphate are coupled with 1 mol 2,6-bis(acetoacetylamino)-benzthiazole, (4) 2 mols diazotized 4-aminobenzenesulphonylaminoethyl - isothiouronium chloride are coupled with 1 mol 1,5-bis(acetoacetylamino)-2,4-dimethoxybenzene.  The dye of the formula <FORM:1055576/C4-C5/2> is also specified.ALSO:Dyeings on materials of natural or regenerated cellulose are obtained in a long bath without the addition of salts or levelling agents by dyeing in a dilute weakly acidic aqueous solution at 20-100 DEG C. with a water-soluble dye free from anionic groups and containing a tertiary or quaternary ammonium, pyridinium, ternary sulphonium or isothiouronium group linked to the aromatic dyestuff nucleus through a bridge -A-R-, wherein R is a saturated or unsaturated aliphatic or araliphatic radical which may be interrupted by hetero atoms and A is -SO2- or -SO2-NR'- (R' being H or an alkyl or aralkyl radical), and, if desired, fixing the dyeings with an acid-binding agent, advantageously in an aqueous bath at 40-100 DEG C.  The dyes may be from the phthalocyanine, azo or thiazole series.  In some cases the fixation may be carried out in the same bath as the dyeing. Examples are given in which a number of dyes are specified.
Patent GB-1094297-A (GB)
Title: Measurement of small dimensions
Inventor: GOSDEN RAYMOND GEORGE
IPC: G01B11/08
Filed: 1964-09-25
Abstract: 1,094,297. Optical apparatus. IMPERIAL CHEMICAL INDUSTRIES Ltd. Dec. 14, 1965 [Sept. 25, 1964], No.39124/64. Heading G2J. [Also in Division G1] The diameter, or change in diameter, of a running, continuous and transparent, or partially transparent, filament, is determined by passing the filament through a laser beam and investigating the interference pattern produced. The filament may be of a polyamide, freshly produced from a melt-spinning machine and the means for detection of the interference pattern may be photo-electric, using a continuous laser, (see Division G1) or photographic, when a pulsed laser is used. The filament is arranged to pass at right angles through the beam of a helium-neon gas laser and remain wholly within the limits of the beam. Refraction of the light through, and reflection from the sides of, the filament, produce interfering light rays leaving the filament, of a high fringe order, superimposed on a diffraction pattern, which has a small spread and thus little effect on the interference pattern. The latter is best observed at an angle of deviation of about 20‹ -30‹. A convenient arrangement has the laser source and detector next to each other on the same side of the filament, a plane mirror directing the laser beam on to the filament.
Patent GB-907084-A (GB)
Title: Improvements in or relating to fluid pumps
IPC: H02K5/128
Filed: 1960-11-15
Abstract: 907,084. Cooling dynamo electric machines. KRAEMER, H. Nov. 15, 1960, No. 39126/60. Class 35. [Also in Group XXVI] In a multi-stage pump unit driven by a canned electric motor, liquid for cooling and lubricating the driving motor is drawn from pump outlet 5 via duct 6 and passes through air gap 10 and thence through duct 15 in shaft 16 to an intermediate stage in the pump. This serves to maintain the cooling liquid under pressure and so prevent its vaporization. It is described how shaft sealing screw 22 may be used to select the stage into which the shaft duct 21 discharges in pumps having more than three stages.
Patent GB-1438841-A (GB)
Title: Heatable godet liquid interface diffusion method of bonding parts made of  titanium or titanium based alloy
IPC: D02J13/00
Filed: 1973-08-20
Abstract: 1438841 Heated rollers MASCHINENFABRIK RIETER AG 20 Aug 1973 [22 Aug 1972] 39184/73 Heading F2U [Also in Divisions D1 F4 and H5] A portable godet roller has inner and outer shells and partitions traced to both shells to form chambers for a volatile medium, e.g. water, in the sealed space between the shells, openings being provided to allow the medium to pass between the chambers. As shown, mediumcontaining chambers 11 are formed by radial partitions dividing the sealed space between rotatable shells 2, 3 and fixed to both shells. Partitions 10 are parallel to the rotation axis and have one or more openings 12. The partitions may be helical. A heater is located within shell 3, e.g. a co-rotatable resistance element, or a stationary induction coil. Alternatively, the chambers are formed by parallel bores in a cylinder wall which extend axially of the cylinder and which are connected by passageways at their ends.
Patent GB-824688-A (GB)
Title: An improved tin opener
IPC: B67B7/70
Filed: 1956-12-24
Abstract: 824,688. Tin openers; crown-cork openers. TATE, C. E. Dec. 23, 1957 [Dec. 24, 1956], No. 39187/56. Classes 66 and 25(2). A tin opener comprises a carrier plate 10 having two abutments 18, 20 for engaging the top edge of a tin, a rotatable wheel 14 for engaging under the said edge, and a pivoted cutting member 12. Pivoted on a pin 22 mounted on the plate 10 is a hand lever 24 having a ledge 26 on which rests an edge of the cutting member 12 also mounted on pin 22 and provided with a washer 27. The end 28 of the member 12 forms a piercer, which may be raised to project above the plate 10 by rotating the lever 12. The wheel 14 is secured on the spigot 32 of a handle 34, rotatably supported on the plate 10, by a washer 36 lying in a bore 38 and held between a washer 40 and the wheel 14. The part 30 of the member 12 forms a cutter which pierces a tin when the lever 24 is rotated and can then be made to cut round the tin when the handle 34 is turned. The free end of the lever 24 is hooked for removing bottle caps.
Patent GB-371909-A (GB)
Title: Improvements in separators for coal dust and the like
IPC: B04C5/12
Filed: 1930-12-31
Abstract: 371,909. Centrifugal dust separators. HURLEY, T. F., H.M. Fuel Research Station, Blackwall Lane, East Greenwich, London. Dec. 31, 1930, No. 39268. [Class 23.] A dust separator,. more particularly for separating fine coal dust from air, has a chamber 1 with conduits 4 which cause the gas to travel in spiral paths from an annular passage 3 towards the axis of the apparatus. The outer side of each conduit is made to slope, and a slot is left between that side and the base, through which the separated dust is ejected centrifugally. The outlet 5 is slotted to communicate with the space 9 connected by the duct 10 to the tangential inlet 2. The apparatus may be used to separate fine fuel particles from coarse, so that the fine particles are carried through the outlet 5 to the burners. A fan 11 draws fuel from the pulverizer 12 and passes it to the separator. The coarser particles which do not pass through the outlet 5 are returned to the pulverizer through the shoot 13, the chamber 1 being provided with a flap valve 14 to control the flow of material.
Patent GB-1048042-A (GB)
Title: Improvements in or relating to inductive apparatus
Inventor: KEVAN ALEXANDER RUSSELL
IPC: H01F27/245
Filed: 1961-11-03
Abstract: 1,048,042. Transformers. ENGLISH ELECTRIC CO. Ltd. Nov. 1, 1962 [Nov. 3, 1961], No. 39465/61. Heading H1T. Joints in the laminated cores of apparatus, such as large transformers, whose cores are made in several portions are bridged by a trapezoidal member or members interdigitated with the ends of the laminations of the adjacent portions. The bridging members 25 may be equal in thickness to one or several laminations of the core portions, and enable errors in the alignment of the core portions to be compensated. The bridging members may be made in a range of sizes, and may be in two parts, divided horizontally in the Figure, so that a smaller working space is required above the core when it is being assembled.
Patent GB-823832-A (GB)
Title: Apparatus for the calibration of a photoelectric reflection meter
IPC: G01N21/55
Filed: 1957-12-19
Abstract: 823,832. Calibrating photo-electric reflection meters. BOSCH, G.m.b.H., R. Dec. 19, 1957 [Dec. 22, 1956], No. 39498/57. Class 40 (3). A photo - electric reflection meter comprising a lamp 12 and an annular photo-cell 8 connected to a meter is calibrated by means of white discs 5 one of which is imperforate and the others perforated in varying degrees which are held in position by a bush 3 closed by a hollow cylinder 1 blackened on the inside.
Patent GB-1376291-A (GB)
Title: Strip webs for electrically heatable mats
IPC: H05B3/16
Filed: 1973-08-22
Abstract: 1376291 Sheet forming W HAUPT 22 Aug 1973 [22 Aug 1972 18 Sept 1972] 39718/73 Heading B5A A method of manufacturing strips to retain a conductor in electrically heated mats, comprises forming aheated thermoplastics sheet by differential fluid pressure over a matrix having spaced parallel grooves to form a plurality of arcuate portions 2, cooling the sheet and cutting the sheet into strips at right angles to the grooves. The strips are also formed with arcuate portions 4 and 6, which can be interlocked to allow adjacent strips to be joined together, and slots 8 to accommodate distance elements 9.
Patent GB-337675-A (GB)
Title: Improvements in or relating to screw-threads
IPC: F16B39/30
Filed: 1929-12-31
Abstract: 337,675. British Dardelet Threadlock (D.D.G.) Corporation, Ltd. June 29, 1929, [Convention date]. Locking nuts and bolts.-Screw threads adapted to be capable of wedging on a coacting member on axial displacement are constructed with the bottom of the thread having a profile formed of two straight portions c, c, e, f; inclined relatively to the axis and of different inclinations, the part e, f of larger mean diameter than the part c, c having a lesser angle of inclination; the apex of the external thread member is formed with a portion g, h parallel to the axis. The corresponding internally screwed member has the bottom g<1>, h<1> of its thread parallel with its axis and the apex is formed with two equi-angular inclined parts b, d, d, e. When the two members are screwed together, the portion d, e slides up on to and makes jamming engagement with the part e, f there being a certain amount of deforming of the surfaces in contact. Specification 335,598 is referred to.
Patent GB-1151523-A (GB)
Title: Improvements in and relating to Tube Drawing Machines
Inventor: RICHARDS SAMUEL HUGH
IPC: B21C1/02
Filed: 1965-09-20
Abstract: 1,151,523. Drawing. MARSHALL RICHARDS MACHINE CO. Ltd. 19 Sept., 1966 [20 Sept., 1965], No. 39966/65. Heading B3P. A method of drawing metal tubing comprises leading a coil of tubing from a rotating paying out spool through a drawing die, laying the tubing as it leaves the die in a helix on the surface of a drawing block rotating in one direction, and collecting the tubing, as it leaves the block, as a coil on a rotating take-up spool, said take-up spool subsequently serving as the paying out spool when, in a later operation the tubing is drawn in the opposite direction through a further die by the drawing block again rotating in said one direction. An apparatus for carrying out the method comprises a drawing block 1, two spool carriers 3 and 4 and two die boxes 7 and 8. The spool carriers 3 and 4 each include an expanding mandrel on which spools 5 and 6 are located, and with which are associated bending rolls 12 and a traverse control mechanism 13. Mounted on the drum is a pulling-in dog 9 and spaced around the drum are pressure rollers 10. Operation.-Tubing from the spool 5 has the end prepared by inserting a floating plug, lubricating and pointing and is threaded through the die 7 and held by the gripper 9. Four to eight turns are wound on to the block 1, using the pressure rollers 10 and the gripped end is then cut off and the tubing led on to the spool 6. Drawing then proceeds until all the tubing is on the spool 6. For the next draw the tubing is prepared and threaded through the die 8, wrapped on the block 1 and then taken to the spool 5. Guide troughs extend between the dies and the bending rolls 12. The apparatus may include a second set of dies and spool carriers in a plane at right angles to the set shown in Fig. 1, so that the preparation of tubing on one of the second pair of spools can take place while the drawing operation between the first set of spools is proceeding.
Patent GB-993650-A (GB)
Title: Refractory compositions
IPC: B22D18/04
Filed: 1963-10-10
Abstract: A refractory batch consists of 75 to 85% of a refractory comprising at least 50% of alumina, 5 to 15% of - 150 mesh plastic refractory, and the remainder - 150 mesh calcined alumina, there being at least 5% - 325 calcined alumina, at least 50% of the batch being of +65 mesh with 25 to 35% of it being -3, +10 mesh, and at least 70% of -65 mesh fraction of the batch being -150 mesh.  The refractory can be alumina, aluminous ore, or synthetic aluminous grain, whilst the plastic refractory is ball clay. A sodium phosphate can be present as a dispersant.
Patent GB-1189294-A (GB)
Title: Warning Lamp Circuits for use in Battery Charging Systems
Inventor: HARRIS PAUL ANTHONY
IPC: H02J7/14
Filed: 1966-09-09
Abstract: 1,189,294. Vehicle electrical systems. JOSEPH LUCAS (INDUSTRIES) Ltd. 25 Aug., 1967 [9 Sept., 1966], No. 40307/66. Heading H2H. A warning lamp circuit for use in a batterycharging system in which the battery 12 is charged from a generator 15, e.g. a dynamo or alternator rectifier, incorporates a capacitor 22, which may be charged from the battery when the ignition switch 13 is closed, and a transistor 16 whose base emitter circuit will be energized by the voltage across the capacitor through a diode 19, so that current passes through the transistor to illuminate the warning lamp 17 when the capacitor is charged, which is when the generator is not producing an output. When the generator is producing an output, a D.C. or square-wave signal is applied to the terminal 24 so as to maintain the capacitor discharged and consequently prevent illumination of the warning lamp. A further arrangement comprising a Zener diode 18 enables the lamp to be illuminated when the generator output is excessive, e.g. on failure of the voltage regulator. The Zener breaks down so that the generator voltage is applied directly to the transistor base when it is above a predetermined value.
Patent GB-846223-A (GB)
Title: Improved process for the manufacture of lubricating grease compositions
IPC: C10M/
Filed: 1958-12-15
Abstract: Lubricating grease is prepared by (a) mixing a hydrophobic lubricating oil with an aqueous suspension of a water-insoluble dye, chosen from the indanthrene compounds, the indogen compounds and the phthalocyanine compounds, (b) passing the mixtures so formed over a surface having a skin temperature of 300-350 DEG F. in the form of a film 0.001-0.02 inch thick, shearing the film on the surface by means of blades travelling at a rate of 1,000-10,000 ft./min. at the point of contact with the film mixture, the residence time of the mixture on the surface being 1-30 secs., (c) passing the mixture to a heat-treating zone where the mixture is heated for a period of 0.25-4 hours at a temperature of 250-550 DEG F., and (d) subjecting the substantially anhydrous mixture to a shearing action.  Lubricating oils mentioned are mineral oils, silicones, chlorinated silicones, siloxanes, aliphatic dicarboxylic esters such as bis(2-ethyl hexyl) sebacate, polyoxyalkylene compounds, polyphenyl ethers (including diphenyl ether), diphenyl, phosphate or silicate esters, phosphonates, phosphinates, and fluorocarbons (including chlorofluorocarbons). Indanthrene compounds mentioned are indanthrone, flavanthrone, pyranthrone, violanthrone, di-and tri-chloro-indanthrone, and metal derivatives thereof.  The indogen compounds may carry substituents such as hydroxy, carboxy or nitro groups or halogen atoms, but the compounds specified are indigo, iso-indigo, 3-keto-indoline, isatide and isatin.  The phthalocyanine compounds include metal-free phthalocyanine, metal phthalocyanines and chlorinated derivatives of either of these. The aqueous suspension of the dye may contain some relatively volatile material such as alcohols, esters or ketones.  In the examples, greases are prepared from (1) methylphenyl silicone polymer oil and indanthrone and (2) bright stock mineral oil and indigo.  Specification 802,896 is referred to.
Patent GB-1512670-A (GB)
Title: Electrostatic method and apparatus
IPC: G03G15/18
Filed: 1975-10-03
Abstract: 1512670 Imaging process XEROX CORP 3 Oct 1975 [25 Oct 1974] 40590/75 Heading B6C An electrostatic image is formed by positioning a surface of a photoconductive body and a surface of a dielectric body in virtual contact to form an assembly wherein an air gap exists between a portion of said surfaces; pulse imaging the assembly by exposing the photoconductive body to electromagnetic radiation in image configuration and applying a potential difference across said photoconductive and dielectric bodies, said potential difference having a magnitude for causing ionisation in said air gap whereby an imagewise charge pattern which is formed at said surface of said photoconductive body is transferred to said dielectric body to form said electrostatic charge pattern thereon, said pulse imaging comprising repeatedly interrupting the application of the potential difference or the exposure to radiation or both. By varying the number and duration of the pulses the Gamma of the imaging system can be varied. Suitable apparatuses for carrying out the process are disclosed.