baber/WOPTO huggingface dataset:
Patent GB-781490-A (GB)
Title: Improvements in or relating to machines for casting under pressure
IPC: B22D17/32
Filed: 1955-08-16
Abstract: 781,490. Casting-machines. HODLER, F. Aug. 16, 1955 [Sept. 27, 1954], No. 34923/54. Class 83 (1). A machine for die-casting metal under pressure comprises damping-means for absorbing shocks arising from the kinetic-energy of masses which are decelerated in the die-filling operation. The hydraulic-control piston 15 is hollow and contains a part 24 connected to the injection-piston 16 and a spring 25. The spring 25 is compressed by nut 23 to balance the force applied to the injection-piston while metal is being pressed into the die, so that when the die is filled, increased pressure in the cylinder 10 compresses the spring, which thus absorbs the kinetic-energy of the hydraulic fluid, the piston 15 and the masses 17-19 connected thereto. In a modification, Fig. 3, the shock-absorbing device comprises a free-piston 28, held in its normal position by a spring 25, pre-compressed to balance the injection pressure, and the piston 34 is a differential piston. In a further modification the free piston is cushioned by compressed air instead of by a spring. In a further modification, Fig. 5, the injection-plunger 16 is spring-mounted on the rod 26 and the movable die-section 3 has a bore in which a rod 53 is slidable against the action of a spring 55 so that the kinetic-shock due to the movement of the fluid metal and the piston 16 may be absorbed. The arrangement of Fig. 5 may be applied in conjunction with the arrangements shown in other embodiments, and the springs may be replaced by other resilient-elements such as compressedair cushions. In a modification, Fig. 6, the hydraulic cylinder is connected to a pressurefluid reservoir through a regulating-valve 61 and a non-return valve 62. When the die is filled, the hydraulic fluid flowing in pipe 11 is not suddenly stopped but changes its course and enters the reservoir. By adjustment of the valve 61 the time for the reservoir-pressure to build up to the pressure in the pipe 21 may be determined, and also an increase of pressure in the cylinder 35 at the moment the die-cavity is filled, may be produced.
Patent GB-1083165-A (GB)
Title: Azo pyrazolone dyestuffs and method for making same
IPC: C07D231/24
Filed: 1964-08-26
Abstract: The invention comprises compounds of the formula <FORM:1083165/C4-C5/1> wherein R is the radical of a diazo compound connected to the adjoining carbon by an azo linkage of said diazo compound; X is a substituted or unsubstituted carboalkoxy, alkyl, aryl, furyl or carboxy radical; Y is H, halogen, alkyl, alkoxy or a sulphonamide radical; Z is H, Na, K, or NH4; and the SSO3Z group is positioned meta or para to the point of attachment to the benzene nucleus; and the metal complexes thereof.  The metal free dyes of the above formula may be obtained by coupling equimolar proportions of a diazonium salt with a compound of the formula <FORM:1083165/C4-C5/2> The metal complexes may be obtained by metallizing the dyes obtained above in which the diazo component contains at least one metallizable group.  Examples are given for the production of the dyes.ALSO:Azo dyes of the formula:-  <FORM:1083165/D1-D2/1> wherein R is the radical of a diazo compound connected to the adjoining carbon by an azo linkage of said diazo compound; X is a substituted or unsubstituted carboalkoxy; alkyl, aryl, furyl or carboxy radical; Y is H, halogen, alkyl, alkoxy or a sulphonamide radical; Z is H, Na, K or NH4; and the SSO3Z group is positioned meta or para to the point of attachment to the benzene nucleus, are applied in their salt form to dye cotton fabric and in their free acid form to dye wool.
Patent GB-1078695-A (GB)
Title: Photochromic filter
IPC: G03C1/73
Filed: 1964-08-26
Abstract: A solid photochromic material comprises a polymeric base containing at least one photochromic material with a polynuclear conjugated condensed aromatic ring system, which is excitable by photons of energy greater than that equivalent to a wavelength of 6000 <\>rA to a meta-stable state, the meta-stable state having strongly-allowed triplet-triplet transitions to higher-energy states, the energy gaps of these transitions corresponding to wavelengths of 41,000-7,500 <\>rA.  The triplet state is defined as that of a molecule containing two unpaired electrons with parallel spins.  Two photochromic materials may be used, giving a synergistic effect.  The material may be used as the middle layer in a filter with glass filters respectively opaque to I.-N. and U.-V. on each side, and the glass layers may be sealed to prevent ingress of oxygen to the photochromic material. 25 examples are given, together with a large number of applications.  Photochromic materials mentioned include pyrazine, benzamide, 2-bromo-naphthalene, naphthalene, 1,10-phenantaroline, thianthrene, biphenyl, fluorene, benzophenone, benzophenone oxime, anthracene, triphenylene and chrysene, and may contain phosphorus or arsenic.  Numerous polymeric base materials are mentioned, which should be substantially free from monomer and active centres capable of reacting with free radicals and bi-radicals, and free of oxygen.
Patent GB-604500-A (GB)
Title: Method of electro-forming dry rectifier elements
IPC: H01L21/14
Filed: 1945-12-28
Abstract: 604,500. Asymmetrically-conducting resistances. STANDARD TELEPHONES & CABLES, Ltd. Dec. 28, 1945, No. 35065. Convention date, Jan. 27. [Class 37] Electric forming of dry rectifiers 1 is effected by applying a direct current pulsating voltage, in conjunction with a wave-shaping means such as a condenser 4 in parallel or an inductance 5 in series or a combination of the two. The rectifier elements 1 may be treated while in series, as shown, or in parallel.
Patent GB-1071376-A (GB)
Title: Borohydride compounds and their preparation
IPC: C01B6/00
Filed: 1965-08-16
Abstract: The invention comprises compounds of the formula Mx(B6H6)y in which M is a cation, x and y are 1,2 or 3, and 2y equals the value of x multiplied by the valency of M.  M may be an ammonium, sulphonium or phosphonium radical substituted by 1-4 organic substituents having up to 8 C atoms. Specified compounds include [(CH3)4N]2B6H6.  The compounds may be prepared by adding a conc. aq. solu. of an H2O-soluble salt of the appropriate cation, e.g. [(CH3)4N]Cl, to an alkali metal hexaboro-hydride, e.g. Na2B6H6, which may be prepared by the reaction of an alkali metal borohydride with diborane in a polyglycol ether solvent (see Division C1).ALSO:The invention comprises compounds of the formula Mx(B6H6)y in which M is a cation, and y are 1, 2 or 3, and 2y equals the value of x multiplied by the valency of M.  M may be an alkali metal, an alkaline earth metal, a heavy metal (atomic number at least 47), an ammonium radical, an ammonium, sulphonium or phosphonium radical substituted by 1-4 organic substituents having up to 8 C atoms, or a hexammonium complex of Cr or Co.  Examples refer to the preparation of Na2B6H6, K2B6H6, Cs2B6H6, CaB6H6, Tl2B6H6, PbB6H6, (NH4)2-B6H6, [(CH3)4N]2B6H6 and Ag2B6H6.  Alkali metal hexaborohydrides may be prepared by reacting, at a temperature above 100 DEG  C., an alkali metal borohydride e.g. NaBH4, with diborane in the presence of a polyglycol ether solvent, e.g. a di-alkyl ether of diethylene or triethylene glycol.  The reaction may be carried out at 100-230 DEG  C. in the presence of a polyglycol ether having a b.p. of at least 100 DEG  C. 0.5-1.5 moles of diborane may be added per mole of alkali metal borohydride dissolved in the ether.  The diborane may be diluted with a gas inert to the reactants, e.g. N2. Alkaline earth metal-, heavy metal- and substituted or unsubstituted ammonium-hexaborohydrides may be prepared by adding an alkali metal hexaborohydride, e.g. as prepared above, or tetramethylammonium hexaborohydride to a conc. aq. soln. of a salt of the appropriate cation.ALSO:A herbicide comprises the compound Mx (B6H6)y where M is a cation, x and y are 1, 2 and 3, and 2y equals the value of x multiplied by the valency of M. M may be an alkali metal, an alkine earth metal, a heavy metal (at. no. at least 47), an ammonium radical, an ammonium, sulphonium or phosphonium radical substituted by 1-4 organic groups containing up to 8C atoms, or a hexammonium Cr or Co complex.  A specified herbicidal composition consists of an aqueous solution of [(CH3)4N]2B6H6 applied at the rate of 36 lbs. per acre.
Patent GB-826946-A (GB)
Title: Improvements relating to the manufacture of gloves
Inventor: PACE ALFRED ALEXANDER
IPC: A41D19/04
Filed: 1955-12-08
Abstract: <PICT:0826946/III/1> Gloves or similar inflatable articles of indiarubber or the like are supported on a frame, e.g. an inverted U-shaped bracket 10, attached to a bulkhead 11 over which the open end of the article may be placed; gas under pressure is admitted through an inlet 13 so as to inflate the article, prior to coating with adhesive, e.g. by dipping, and the application of flock.  A number of such frames may be mounted on a common stand, the air inlets being connected to a common manifold.
Patent GB-1475873-A (GB)
Title: Method and apparatus for coupling two single rows of continuous elements for a sliding clasp fastener
IPC: A44B19/10
Filed: 1975-08-27
Abstract: 1475873 A method of assembling sliding clasp fastener stringer tapes YOSHIDA KOGYO KK 27 Aug 1975 [5 Sept 1974] 35317/75 Heading E2S A method of coupling, or pairing, two single rows 12, 13 of continuous element for a sliding clasp fastener which have been discharged continuously from a pair of separately-located element-forming and transporting stations 10, 11, comprises guiding the single continuous element rows 12, 13 around respective tension-applying means 32a and 32b each movable between an upper limit position 33a or 33b and a lower limit position 34a or 34b, advancing either one of the two rows 12, 13 at a speed different from that of the other row; coupling the two rows together, e.g. at 35, into a double element row; and withdrawing the double element row at a speed higher than that of either of the two rows 12, 13. The method according to the invention also includes the essential steps of discontinuing the withdrawal of the double element row when either of the tension-applying means 32a or 32b arrives at an upper limit position 33a or 33b; and resuming the withdrawal of said double element row and simultaneously maintaining, or shifting, the speed of travel of either of the rows 12, 13 from high to low, or vice-versa when either tension-applying means arrives at the lower limit position. As shown, the machines 10, 11 comprise heated, toothed die wheels 16, 17 which are powered by separate sources and are rotatable about respective shafts 20, 21 to advance the element rows 12, 13 respectively past cool-air nozzles 26, 27, over guide rollers 28, 29 and 30, 31, around tensionapplying rollers 32a, 32b and through a slidershaped coupling means 35, the double element row being withdrawn from the means 35 by a pinch roller 37 and a drive roller 36 which can be selectively stopped by actuating a clutch, not shown. In operation, since the draw-off speed of the double element row is greater than that of either of the two rows 12, 13, the two tensioning rollers 32a, 32b will rise until the roller associated with the row travelling at the lower speed contacts the respective upper switch 33a or 33b whereupon the drive roller 36 is stopped. The tensioning rollers 32a, 32b then descend until the roller associated with the faster row contacts the respective lower switch 34a or 34b so that the roller 36 resumes its drive and the faster running machine 10 or 11 is shifted to its lower speed, or vice-versa. Should a lower switch 34a or 34b be contacted by the roller 32a or 32b of a row travelling at the lower speed no change of relative speeds takes place. The die wheels 16, 17 may be replaced by rotatable screws having element-forming threads.
Patent GB-1106612-A (GB)
Title: Improvements in profile cutting machines
Inventor: OWEN BERNARD DENNIS
IPC: B23K7/00
Filed: 1964-08-28
Abstract: 1,106,612. Cutting by fusion. BRITISH OXYGEN CO. Ltd. 13 Aug., 1965 [28 Aug., 1964], No. 35342/64. Heading B3V. A profile cutting machine comprises a crossbeam 20 adapted to span the workpiece 32 and to be driven along a rectilinear axis transverse of the beam, a cutting head 34 mounted for movement along the beam by means of a flexible element 40 passing around spaced pulleys 42, 44 on the beam and driven by a motor 23, a table 72 for supporting a scale reproduction of the profile to be cut and movable along an axis parallel to the rectilinear axis, a tracing head 66 movable over the table parallel to the beam, means 74, 78, 80, 82 for moving the table at a speed proportional to that of the cross-beam and means 86, 88 for moving the tracing head at a speed proportional to that of the cutting head. The beam 20 is mounted on wheels 22 running along rails 24 by a reversible motor 25. Element 40 is a steel band 40 tensioned by a spring 48 and clamped to a driving carriage 21 movable along the beam by reversible variable speed motor 23. Alternatively a motor fixed to the beam may drive one of the pulleys directly. The cutting head 34 which may be an oxygen/gas cutter or a plasma arc, is mounted on a carriage 36 which may be clamped by handle 46 to either the upper or lower strands of the band 40 for cutting similar or mirror image profiles. The tracing head 60 which may be of the photoelectric type or may comprise a roller following the edge of a template, is mounted on a carriage 62 driven from pulley 44 by rack 86 and pinion 88 which provides a 10 : 1 speed reduction. Alternatively the tracing head carriage 62 may be driven by an endless band. Table 72 which supports a drawing or profile, runs along rollers 70 and is driven from wheel 22 through gear-box 80, pinion 76 and rack 74 with a 10 : I speed reduction. The gear-box may include an idler pinion for use when cutting mirror image profiles. Alternatively wheel 22 may drive pinion 76 directly. The tracing head emits signals which control the movement of the cross-beam over the workpiece and the movement of the cutting head along the beam. In another embodiment, Fig. 2 (not shown), the tracing head is secured to a telescopic extension of the cross-beam. In a further embodiment, Fig. 3 (not shown), the cross-beam 20 is moved along its rails (24a) by a motor driven pinion (104) meshing with a stationary rack (100). The table (72a) is also driven by a larger pinion (106) meshing with the stationary rack and connected by shaft (108) to pinion (76a). A plurality of cutting heads may be mounted on the beam and driven by the endless band 40.
Patent GB-859201-A (GB)
Title: Improvements in burners for gaseous and heavy liquid fuels
Inventor: FERGUSON WILLIAM
IPC: F23D17/00
Filed: 1959-10-19
Abstract: 859,201. Burners. NATIONAL AIROIL BURNER CO. Oct. 19, 1959, No. 35346/59. Class 75(1). A burner for burning heavy residuum oils and gas comprises a housing 24 mounted in an opening 16 in a refractory block 15 and spaced therefrom to form an air inlet 33, an open ended tube 48 extending through the housing 24 and spaced from the inner end thereof to form a discharge opening 50 for a gas/air mixture supplied to the housing by an inspirator 38, a burner tube 46 extending through the open ended tube 48 and having a nozzle 53 on its inner end, pipes 44, 45 for supplying atomizing steam and oil to the burner tube 46, and auxiliary gas burners 55, 56 mounted in a trough 32 in the inner face of the housing 24 and adapted to apply flames to unburned residuums falling from the refractory block 15. Each auxiliary gas burner 55, 56, Fig. 3, comprises a frutso-conical tip 53 mounted on a standpipe 59 having discharge ports 60, 61 protected by the tip 53. A smaller port 62 may be provided on the tip 53. Two auxiliary burners 55 are supplied with a gas/air mixture from the housing 24 by bores 63 in the wall thereof; the other two auxiliary burners 56 are supplied with raw gas by pipes 65. The trough 32 in which the auxiliary burners are mounted is formed by two annular rims 30, 31 on the housing 24, the inner rim 30 being higher than the outer rim 31. Ihe inspirator 38 comprises a gas nipple 40 and an adjustable air shutter 41. The open ended tube 48 is held centrally in the housing 24 by screws 49 extending therethrough.
Patent GB-489374-A (GB)
Title: Improvements relating to the production of autotype pictures
IPC: G03F5/06
Filed: 1936-12-24
Abstract: 489,374. Lens diaphragms. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.) Dec. 24, 1936, No. 35428. Drawings to Specification. [Classes 98 (i) and 98 (ii)] Diaphragms for autotype work for use in conjunction with a half-tone screen in the camera exposure or in copying have a central aperture and a series of peripheral apertures, some or all of the apertures being variable in respect of their relative positions, or their sizes or shapes. The peripheral apertures may be varied by providing two superimposed plates haveing registering central apertures, and having a series of peripheral apertures which may be varied by rotating the plates relatively to alter the degree of overlap of the apertures. In an alternative form, two plates rotatable on different axes may be provided, each having a series of different shaped apertures which may be moved into register by rotating the plates. One or more of the central or peripheral apertures may be constituted by a known mechanical diaphragm, e.g. an iris diaphragm, or such a diaphragm may be used in addition to the variable diaphragm. Specifications 452,578, 452,647, and 452,648 are referred to.
Patent GB-1255889-A (GB)
Title: Improvements in or relating to electromagnetic armature assemblies
IPC: H01H50/28
Filed: 1970-07-22
Abstract: 1,255,889. Electromagnetic armatures; electromagnets. SIEMENS A.G. 22 July, 1970 [23 July, 1969], No. 35454/70. Headings H1N and H1P. An armature return blade spring connected between the armature, and a support member is reinforced in the region of attachment by spotwelding to the support member so as to ensure that the zone of greatest spring curvature is not in the brittle area of the weld. The spring end may be reinforced by a bent-over part 5 which provide a maximum curvature point 6 away from the welds 8 or reinforcing notches 14 may be provided in the area of the welds 17, 18. Alternatively a reinforcing plate (not shown) may be welded with the spring to the support member.
Patent GB-343956-A (GB)
Title: Rotary machine for well-drilling and the like
IPC: E21B3/04
Filed: 1929-11-20
Abstract: 343,956. Well-boring plant. NATIONAL SUPPLY CO. OF DELAWARE, 120, Broadway, New York, U.S.A. Nov. 20, 1929, No. 35507. Convention date, July 17. [Class 85.] In a rotary well &c. boring machine with a rotary table supported on a baseplate with an extension which detachably supports bearing housings for a drive-pinion assembly, foot portions on the bearing housings seat in arcuate recesses in the baseplate extension to assist in holding the assembly against axial displacement. In Figs. 2 and 3, a unitary base 1, supported on skids 8 and carrying the rotary table 6, has an extension 2 supporting a unitary drive-shaft assembly which includes a shaft 9 carrying a drive-pinion 10 and a sprocket 13, the latter being off-centre with relation to its hub 14 so that it may be adjusted by reversal. A cap 16 encloses the end of the shaft. Roller bearings 18, 19, are provided on opposite sides of an enlarged portion 20 of the shaft. The bearing 18 is held between the flange 26 and removable cover 26a of a cylindrical housing 25 provided with arms 28 fitting within, and secured by bolts 30 to, brackets 29 preferably integral with the base 1. The bearing 19 is held between washers 37, 38 and a removable cover 40 of a cylindrical housing 34 secured similarly to the housing 25 and provided with a cylindrical flange 35 fitting over the hub of the pinion 10. The housings 25, 34, also have downward extensions 31, 43 engaging recesses 32, 44 in the base. Between the housings 25, 34, a lock ring 46 is keyed to the shaft 9, the ring having recesses 47 adapted to be engaged by pawls pivoted to the base 1, whereby the shaft and rotary table may be locked against rotation. The Specification as open to inspection under Sect 91 (3) (a) describes also the form shown in Fig. 4 (cancelled), in which the housings have outwardly extending web castings 50a fitting between standards 51a on the base and provided with integral caps 52a bolted to the standards, shims 54a providing for adjustment. Keys 55a engage registering slots in the castings 50a and standards 51a, the inner ends of the shims overlapping the keys. The keys have tapped openings 57a to facilitate removal. This subject-matter does not appear in the Specification as accepted.
Patent GB-479705-A (GB)
Title: Improvements in fluid machines
IPC: F01B7/20
Filed: 1936-12-29
Abstract: 479,705. Reciprocating pumps and compressors. SKARLUND, C. A. Dec. 29, 1936, No. 35588. [Classes 8 (i) and 102 (i)] [Also in Groups XXVI and XXIX] A machine working with liquid or gas, and serving as a motor, pump, or compressor, has two adjacent rectangular chambers in which work pistons at 90‹, which pistons serve as cylinders for pistons working therein and transversely thereto and arranged upon a crank or eccentric on the power shaft. The chambers are separated by a ported plate through which they communicate. The fluid distribution of both chambers is controlled by the outer pistons acting as valves, or by slide valves connected thereto, which control ports in the casing. The machine shown comprises two parts each with four frame parts 1, 2, 3, 4 and 1a, 2a, 3a, 4a and end plates 5, 5a. These form rectangular chambers separated by a plate 10. Hollow rectangular pistons work in the chambers, and house secondary hollow pistons 18. The vertical walls of the piston 11, 12 have ports 21, 22 which control stationary ports 23 .. 26 respectively, and the horizontal walls of piston 11a, 12a have ports 21a, 22a which control ports 23a ... 26a. The ports 23 .. 26 may control the outlet of fluid. The inner pistons are mounted on a common crank-pin 31. Working chambers 33..36, 33a .. 36a are arranged on both sides of the pistons. The adjacent chambers are in communication through ports in the plate 10. The ports 21, 22 serve alternately as inlet and outlet ports for the chambers 35, 36, 34a, 33a, and the ports 21a, 22a will serve alternately as inlet and outlet ports for the chambers 35a, 36a, 33, 34. With the crank rotating as shown, discharge takes place through ports 25, 26a, 24, 23a and suction through the other ports. In a modification, the main pistons are mounted on eccentrics and the four sides of each cylinder are provided with ports. Ports 21, 22, 21a, 22a control ports in the walls as in the figures shown, the ports in the other walls are controlled by plate valves secured to the piston in each adjacent cylinder respectively. The inlet or outlet ports in the outer casings may be provided with control valves.