baber/WOPTO huggingface dataset:
Patent GB-235863-A (GB)
Title: Recoil reinforcer for use with automatic weapons operating by recoil of the barrel
IPC: F41A21/26
Filed: 1925-06-02
Abstract: 235,863. Etablissements Braekers Soc. Anon., Francart, R., and Drock, A. June 21, 1924, [Convention date]. Machine guns.-To increase the recoil of automatic guns having a recoiling barrel, the barrel is provided at the muzzle with a piston 7 sliding in a cylinder 1 fixed to the casing. The front 2 of the cylinder is of conical form pointing rearwards and forms, with the base of the flash obscurer 11, a small chamber 10. The piston comprises a ring 7 fitting in a groove in a nozzlepiece 6 screwed to the muzzle. The piston ring is capable of slight radial play to allow for defects of centring of the barrel relatively to the cylinder.
Patent GB-1174357-A (GB)
Title: Improvements in or relating to Record Sheets.
IPC: G06K9/00
Filed: 1967-07-21
Abstract: 1,174,357. Character recognition. COLUMBIA CONTROLS RESEARCH CORP. 21 July, 1967 [28 July, 1966], No. 14456/69. Divided out of 1,174,355. Heading G4R. A record sheet having indicia thereon adapted to be automatically read, bears a first group of characters transferred thereon through one or more sheets and an overlying transfer sheet and a second group of characters applied by type impressions, the characters of the first group being taller than like characters of the second group. The disclosures are as in Specifications 1,174,355 and 1,174,356 which are referred to.
Patent GB-1060777-A (GB)
Title: Production of acrylic acid and substituted derivatives thereof
IPC: C07C51/25
Filed: 1964-04-08
Abstract: Acrylic or substituted acrylic acids are produced by treating the corresponding alkenal with an organic hydroperoxide as oxidizing agent in the presence of chromic acid as catalyst. Acrolein, a -methacrolein, a -chloracrolein, a -ethylacrolein, a -isobutylacrolein, and a -amylacrolein are mentioned and the reaction may take place in a mutual solvent such as t-butanol, t-amyl alcohol, dimethyl propyl carbinol, methyl diethyl carbinol and dimethyl phenyl carbinol and others.  The chromic acid may be prepared in situ and hydroperoxides exemplified are t-butyl, cumene, cyclohexyl and cyclohex-2-enyl hydroperoxides and cyclohexanone peroxide or mixtures thereof.
Patent GB-514832-A (GB)
Title: Improvements in and relating to apparatus for the determination of the resistance to fracture of test pieces under impact loads
IPC: G01N3/30
Filed: 1938-05-16
Abstract: 514,832. Testing physical qualities of materials. SOC. ANON. DES HAUTS-FOURNEAUX DE LA CHIERS. May 16, 1938, No. 14580. Convention date, May 27, 1937. [Class: 106 (ii)] In drop hammer impact testing apparatus. rests 3 of considerable weight are arranged on inclined planes 6 of the anvil block in such manner as to remain still during breaking of the rail section 2. The surfaces of the rests in the upper zone 4 are parallel but in the lower zone 5 are of parabolic shape. The guided hammer is dropped from a height, strikes and breaks. the rail 2 and continues on .unobstructed during the zone 4 in the upper .portion of which the residual momentum is measured. When the zone 5 is reached the hammer acts as a wedge. and is braked while it forces the rests apart. These travel up the inclines to engage spring buffers 7, the hammer coming to rest against the anvil without damaging it. ÀSpecification 5;13.319., is referred to.
Patent GB-257671-A (GB)
Title: Improvements in magazine mounting and changing arrangements for typographical composing machines
IPC: B41B11/06
Filed: 1925-06-04
Abstract: 257,671. Intertype, Ltd., and Homans, T. S. June 4, 1925. Magazines for type-bar-making machines.-In machines, such as that described in Specification 127,442, in which a number of magazines are shiftable bodily in order to bring any required magazine into operative relation with the distributor and the assembler, and in which the magazines are tiltable rearwardly in order to facilitate removal, the magazines and their supporting frames are carried as a unit upon the fixed machine frame, which also carries the shifting mechanism, no intermediate or sub-frame being employed. The magazines 4 and their frames 5 are connected by side members 6 so as to form a unit, which is supported at the upper end by rollers 7 running on slidable tracks 9 carried by fixed frame members 3. At the lower end, the magazine unit is supported by means of a forked bearing member upon a transverse shaft 11 carried by cranks on stub-shafts 13, which rest in slots 15 in the frame members 3. The shafts 13 can be traversed along the slots by rack-mechanism operated by a handle 18 in known manner, in order to shift the magazines. Registration is secured by notches 3<a> which are engaged by stops on the magazine frame. Pivot studs 21 are adapted to rest in bearing-notches in the members 3, when the magazines are in the lowermost position. If the tracks 9 are pushed forwards so as to clear the rollers 7, the magazine frame can then be tilted rearwardly about the pivots 21.
Patent GB-235206-A (GB)
Title: Method of and apparatus for automatically regulating the juice level in the evaporating or boiling apparatus of sugar-treating plants
IPC: C13B25/06
Filed: 1925-06-04
Abstract: 235,206. Naamlooze Vennootschap de Nederlandsch-Indische Industrie. June 7, 1924, [Convention date]. Rotary disc valves.-A valve for use in regulating the supply or discharge of liquid in apparatus for evaporating sugar juices is formed by apertured plates 24 moved over stationary plates 23 having corresponding apertures. A small clearance is left between the plates to allow continuous leakage of liquid and prevent deposition of crystals.
Patent GB-143935-A (GB)
Title: Improvements in or relating to double compounds of railway lines
IPC: E01B7/18
Filed: 1920-05-29
Abstract: 143,935. Baseler, W. Jan. 4, 1918, [Convention date]. Turn-outs, arrangement of.-In a double compound, with the switches f of the slip roads set beyond the end crossings i, a single rail e is used within the diamond, having a running face on both sides of its tread to serve as the outer rail of both slip roads. At each end of the diamond, the three crossings h, i are combined into a single block.
Patent GB-807962-A (GB)
Title: Improvements in or relating to ladies' shoe heels
Inventor: EDELSTON LEON
IPC: A43B21/46
Filed: 1956-05-11
Abstract: 807,962. Shoe heels and protectors. MERRYWELL SHOES Ltd. Oct. 3, 1956 [May 11, 1956], No. 14702/56. Classes 17(2) and 17(3) - A shoe heel comprises an upper part 1 of wood and a lower part 2 of aluminium or similar light weight metal having a threaded bore 3. A top piece which comprises a screw 4 of metal or fibre with a head 5 is screwed into the bore 3. A cap 6 of rubber, leather or like cushioning material may be secured to the head of the screw.
Patent GB-1464083-A (GB)
Title: Laser units
IPC: G01C15/00
Filed: 1975-04-09
Abstract: 1464083 Lasers ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE) 9 April 1975 [24 April 1974] 14708/75 Heading H1C [Also in Divisions G1 and G2] A laser beam is directed in a strictly vertical direction by a laser 1, Fig. 1, which is supported on a structure 3 so that the emergent laser beam is substantially vertical, the beam then passing through an optical verticality correction device 2 which comprises a pair of superposed coaxial cups 48, 49, Fig. 2, each having a bottom formed at least partly by a parallel faced transparent plate and containing a liquid having a refractive index of 1À5. For initially setting up a vertical output beam, the laser 1 and the optical correction device 2 are rotatable on the structure 3 which is provided with level adjusting screws 56, first verticality being obtained by angularly adjusting the orientation of the cups relative to the incident laser beam. Verticality error is shown by a circular trace of the laser output beam, when the laser and correction device are rotated. Following precise vertical alignment any vertical error then arising due to slight movement of the supporting structure 3 is corrected automatically by the refraction characteristics of the liquid prisms constituted by the cupos 48, 49 of the correction device. The laser is rotatably mounted in a sleeve 5 and may be clamped by a screw 8. The sleeve is supported in an aperture 13 in the tripod structure 3 by two plates 15, 16 which after clamping ring 21 is released permit a limited lateral adjustment of the sleeve and laser relative to the supporting structure. The correction device is mounted on the laser below an afocal optical system (not shown), and may be angularly adjusted with respect to the emergent laser beam axis by screws 54, access to these screws being provided by holes 55 in the sleeve. In the arrangement shown the laser output beam is finally directed upwards by a tetrahedral prism 63 housed in a casing 64 detachably secured to a plate 59 extension of the sleeve. Alternatively the beam may be directed in a selected horizontal direction by a pentahedral prism 65, Fig. 3, housed in a rotatable case 66, which may be locked by a screw 71. In a modification, Figs. 4 and 5, the limited lateral movement of the laser and sleeve assembly relative to the supporting structure is provided by two orthogonal slideways 24, 25, each slideway being movable by a respective handwheel 33, 38 through a rack and pinion drive 28, 29 and 34, 35. A locking screw 46 is provided for each slideway.
Patent GB-342622-A (GB)
Title: Improvements in or relating to electrically driven centrifugal machines
IPC: B04B9/04
Filed: 1930-05-13
Abstract: 342,622. Centrifugal machines. SIEMENS-SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. May 13, 1930, No. 14730. Convention date, June 26, 1929. [Class 23.] Driving.-A centrifugal machine has a drum 1 driven by an electric motor 2 the rotor of which is mounted on the hollow shaft 4 of the machine. The resistance 5 associated with the motor is mounted on the underside of the end 8 of the drum, and is connected to the rotor winding by a cable through the hollow shaft. The motor is surrounded by a metal cylinder 9, and the rotation of the drum induces a flow of cooling air over the motor and the resistance 5. The resistance may be divided to obtain balance, or a counterweight may be used.
Patent GB-568379-A (GB)
Title: Improvements in switches for high-frequency oscillations
IPC: H01P1/12
Filed: 1941-11-18
Abstract: 568,379. Switching arrangements for high-frequency oscillators. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. Nov. 18, 1941, No. 14816. [Class 40 (iv)] [Also in Group XL] In a switching system for high-frequency oscillations in which the impedance at the switching point is large or small in accordance with the proximity of remoteness of a conducting plate to the open end of a A /4 or #/2 stub line connected to the transmission circuit at an appropriate distance from the switching point, one or more additional stub lines are provided at distances p#/4 from the first (p being an odd integer). Preferably, as described in Specification 564,988, an impedance is provided at the transmission line end of one or more of the stubs to compensate for the fact that the proximity of the conducting plate to the open end of the stub never provides a perfect short circuit. The short-circuiting effect of the plate may be increased by filling the region separating it from the stub end with a non-conducting liquid having a dielectric strength much greater than that of air. The plate may then approach the stub more closely without danger of sparking. The Figure shows an arrangement for switching oscillations in line 2 to the right or the left, each of the branch paths comprising two #/4 stubs controlled by common plates 7, 7<1>. Compensating condensers dimensioned as described in the prior Specification are provided at C. If #/4 stubs are used, the compensating elements are inductive and are connected in series with the input to the stubs.
Patent GB-1227996-A (GB)
Title: Improvements in or relating to corona generating apparatus
Inventor: WHITMORE THOMAS C
IPC: G03G15/02
Filed: 1968-03-28
Abstract: 1,227,996. Discharge apparatus. EASTMAN KODAK CO. 28 March, 1968 [3 April, 1967], No. 14894/68. Heading H1X. A shield 35 is attached to the outlet of a corona discharge device producing ionized gas for altering the electrostatic condition of photosensitive material to shield the material from any actinic radiation generated by the discharge, said shield having a convergent passageway 62 with sections 59, 60, 61 at increasing angles of inclination. Pressurized gas, e.g. air, introduced through a flexible connection 22 and passing through apertures 29 in a plastics sleeve 28 is ionized by a corona discharge between a needle 18 and an apertured plate 23 held in position by a spring ring 26. The shield 35 is attached to a metallic sleeve 23 of the discharge device by a set screw 38. The passage 62 is convergent in the cross-section shown and divergent in the orthogonal cross-section, terminating in a narrow slit 64. A breather hole 65 is provided to reduce turbulence, and the walls of the passage 62 may be sand-blasted, painted black, or otherwise treated to eliminate reflection of light. In an alternative embodiment (Fig. 6, not shown) and elongated shield with a convergent passage comprising two sections at increasing angles of inclination is recured to an outlet slit of an elongated casing enclosing a linear array of corona needles.
Patent GB-731763-A (GB)
Title: Vat dyestuff preparations suitable for textile printing
IPC: D06P1/22
Filed: 1953-05-28
Abstract: Improved prints of vat dyestuffs on textile fabrics are obtained by employing a printing paste which contains, in addition to the vat dyestuff, alkali carbonate, formaldehyde-sodium sulphoxylate and a thickener, a condensation product of an aldehyde with a compound containing at least once the grouping <FORM:0731763/IV (c)/1> such as dicyandiamide, dicyandiamidine, guanidine, acetoguanamine, biguanide and melamine.  The paste may also contain sodium silicate and water-soluble boron compounds, e.g. borax, boric acid or its zinc or manganese salts.  Fabrics of cotton, viscose rayon, acetate rayon, silk and synthetic fibres such as perlon and nylon may be printed.
Patent GB-457131-A (GB)
Title: Improvements relating to voltage regulators
IPC: H02P9/24
Filed: 1935-05-23
Abstract: 457,131. Automatic control systems. LUCAS, Ltd., J., LAIRD, J. A., and ROBINSON, C. E., Great King Street, Birmingham. May 23, 1935, No. 15029. [Class 38 (iv)] [See also Group XXXVII] Electromotive force.-Comprises a vibratory voltage regulator for dynamos, in which at least one of a pair of contacts is made from carbon and in which the field winding is shunted by a rectifier. As shown a dynamo a is provided with a cut-out d and vibratory regulator m which regulates by interrupting the field circuit. A rectifier w is connected across the field such that the field is shortcircuited when the regulator contacts r, s open. One or both of the regulator contacts are made of carbon. A condenser x may be connected across the contacts r, s. Specifications 259,297, [Class 38 (iv)], and 356,807 are referred to.
Patent GB-1099493-A (GB)
Title: Method for the construction of ferrite memory stores
Inventor: COLLINS ANTHONY HOWARD
IPC: H01F41/26
Filed: 1964-04-11
Abstract: A ferrite memory store is constructed by immersing a grid network of electrically conductive wires in a bath containing a liquid suspension of ferrite particles, the wires being arranged to avoid contact at their crossover points, applying a voltage between the wires and an immersed electrode so as to electro-phoretically deposit the ferrite particles until they coalesce around the crossover regions to form a continuous coating around them, and sintering the deposits, the material of the wires being such as will withstand the sintering temperature. The wires may be held in jigs with their crossover points out of contact and the ferrite particles deposited on them or lengths of wire may be electro-phoretically coated with the particles sintered sufficiently to allow handling of the coated wires, assembled into grids and further sintered to cause coalescence of the particles at the crossover points.  Further electro-deposition of particles may be effected after the grid network has been constructed from the pre-coated wire.  If deposition of ferrite between the wires at the crossover points is desired, the wires may be first coated with an insulating material such as crystalline alumina before forming the network.  Alternatively the store may be formed of flat strips coated on their flat sides with non-porous insulating material at least at the points of crossover and assembled with the flat sides facing one another.  The dispersion medium has a high resistivity and may be pure water, alcohols, ketones, esters or hydrocarbons. As described the wires are of Pt or Pt alloy and are coated cathodically from an ethanol dispersion of Mn-Mg ferrite particles of size about 1 micron or less together with shellac and crystalline FeCl3.  Prior to the ferrite deposition, the wire may be coated with graphite which is oxidized away during sintering.  The ferrite particles are sintered by heating in air at 1360 DEG C. for 20 hours, cooling to 1100 DEG C., heating in a nitrogen atmosphere at 1100 DEG C. for 2 hours and then cooling.  Heating may be effected by passing current through the wires.  If the jig as well has to be heated it may be made of a ceramic such as pyrophyllite.
Patent GB-977734-A (GB)
Title: Improvements in or relating to rotary files for card indexes and the like
IPC: A47B49/00
Filed: 1961-04-27
Abstract: 977,734. Cabinets. O. A. KRAFT. April 27, 1961, No. 15187/61. Heading A4B. [Also in Division B6] Revolving platform files d can be slid out of the cabinet access opening 1 on rails for easy access. A central fixed column 2 has brackets 3 each carrying a pair of rails 6 extending perpendicular to opening 1. The platform rotates on a ball-race 7 carried by a support c, which slides on the rails, a ball or roller race being interposed. The central part of support c and the platform have an elongated aperture to clear the column. In a modification, the cabinet has front and rear openings and the files can be slid through either. Specification 977,733 is referred to.
Patent GB-311781-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: B65H23/195
Filed: 1929-05-16
Abstract: 311,781. British Thomson-Houston Co., Ltd., (Assignees of Winne, H. A.). May 16, 1928, [Convention date]. Winding webs.-A motor 11 for winding rolled strip steel is automatically controlled to maintain constant tension in the strip delivered from finishing rollers 15. For ths purpose, the motor field winding 12 is in circuit with the contacts of a vibratory regulator 19, which has a coil 21 energized proportionally to the motor armature current, a second coil 22 energized proportionally to the speed of the finishing roller motor 18, and a third coil 32 energized proportionally to the current in the field 12. To provide for continued pull when the rollers are at rest, a relay 45 opening automatically as the speed of the motor 18 is reduced de-energizes electromagnetic contactors 41 which reinsert starting resistance 40 in the armature crcuit of the motor 11. Very slow running of the motor 11 when beginning to coil up a new strip is obtained by closing a field strengthening push-switch 50. Quick running under idle conditions is obtained by a switch 33 which cuts-out the regulator.
Patent GB-544494-A (GB)
Title: Improvements in or relating to welding apparatus
IPC: B23K11/31
Filed: 1940-10-17
Abstract: 544,494. Transformers. BUDD WHEEL CO. Oct. 17, 1940, No. 15381. Convention date, Oct. 18, 1939. [Class 38 (ii)] [Also in Group XXII] In a fluid pressure electric spot welding apparatus the cylinder is located adjacent one side of the transformer with its axis parallel to said side and extending in the general direction of the welding pressure, the cylinder overlapping the transformer through a substantial part of the axial extent of the cylinder. A two part casing 18, 20 has a recess 70 to receive a transformer 24 and the part 20 has formed therein a fluid pressure cylinder 26 housing a piston 36, 40, 38 secured to a hollow piston rod 42 to which is secured by a bolt 48 an offset block 46 carrying an electrode 14. The piston rod is of square section and slides in a split electric contact sleeve 52, 50 which is provided with a shoulder 56 held in a recess 58 in an end member 54 by a spring 60. The piston rod is filled with lubricant and has lubricating ports 45. The sleeve 52, 50 is surrounded by a clamping member, 120 which is connected to a clamp 118 embracing the terminal 881 of the transformer. The other terminal 88 is connected by a clamp 114 to a plate 72 which clamps the arm 62 carrying the fixed electrode 16 against an extension 64 of the casing 18, insulations 70 being provided between the arm 62 and the extension 64. The terminals 88, 881 pass out of the casing 18 through insulating bushings. The transformer has a figure of eight core 71 and a secondary winding 73 arranged in three layers intermediately spaced by primary windings 75, each secondary layer comprising about three turns composed of four square water-cooled tubes laid side by side, a thin strip of insulation 80 separating the turns. To ensure uniform distribution of the cooling liquid the conductors at the ends of the turns are given a right angled bend at 84 and the ends are led into the terminal connectors 88, 881 to the lower ends of which the cooling connections are attached. The upper ends of the connectors consist of flattened portions 94 slotted at 100 to receive the tubular conductors which are silver soldered or otherwise affixed therein. The upper end is closed by a cover plate 102 having an end flange which is soldered to flanges 96 on the part 94 to provide a closed distributory chamber 90. The casing is provided with a pair of bars 124, 126 having grooved collars 128 engaging an annular internal ridge 130 in a ring 132 which carries trunnions 138 for engaging a yoke 134, the axis of the trunnions passing substantially through the centre of gravity of the apparatus. The apparatus may thus be adjusted to various angular positions. The handle 34 is provided with a button 32 for operating the valve for admitting fluid pressure to the cylinder.
Patent GB-693472-A (GB)
Title: Improvements relating to amplitude modulation circuits
IPC: H03C1/22
Filed: 1951-06-28
Abstract: 693,472. Valve modulating and generating circuits. EDISON SWAN ELECTRIC CO., Ltd. June 28, 1951, No. 15385/51. Classes 40 (v) and 40 (vi). An oscillator is amplitude-modulated by a modulator valve acting also as a reactance valve connected to a tuned circuit 3, 4 of the oscillator so as to compensate throughout the modulation cycle for changes in frequency of the oscillator due to the modulation. The reactance valve 7, with phase quadrature network 14, 13, is connected through a capacitor 18 to a tapping 19 on the tuned circuit 3, 4 of an electroncoupled oscillator valve 2, the screen grid of which acts as an anode of the oscillator portion of the valve. A further tapping 16 of the tuned circuit is set at radio-frequency earth potential by a capacitor 17. Modulation applied to a further grid of the valve 7 and amplified by the valve is taken off the anode circuit by a transformer 9 and applied to the tapping 16 to modulate the screen grid voltage of the oscillator valve 2. The arrangement compensates for frequency deviation due to the screen grid voltage being varied. The degree of compensation may be varied by the adjustable tappings 16, 19 and the cathode bias resistor 10. A capacitor 11 by-passes radio-frequency current from the transformer 9. Frequency changes due to variations in supply or heater voltage are also compensated for by the arrangement.