baber/WOPTO huggingface dataset:
Patent GB-756592-A (GB)
Title: Pneumatically operated electric circuit breaker with closing valve cutoff switch
Inventor: PEEK HENRY LAWRENCE
IPC: H01H33/32
Filed: 1954-03-01
Abstract: 756,592. Automatic circuit breakers; gas blast circuit breakers; switches partly electromagnetic. ALLIS-CHALMERS MANUFACTURING CO. March 1, 1954, No. 5976/54. Class 38(5) A controlling mechanism for a circuitbreaker 3 having contacts 4, 5 comprises a pneumatic motor 1 and a solenoidoperated gas inlet valve 90 the coil 94 of which is connected in series with a gas blast switch 97, a switch 96, and a power supply 95. When switch 96 is closed, coil 117 of an electromagnet 114 of switch 97, and coil 94 of valve 90 are energized, and valve 90 opens and admits gas to motor 1 forcing the piston and attached ram 18 upwards, the latter engaging roller 19 to raise a toggle 20, 23 which rotates lever 25 to cause engagement of contacts 4. 5 which are latched closed by a system 27, 31. In order to permit quick return of piston 15 to its original position by a spring 16, gas is admitted to switch 97 at a predetermined point in the closing stroke, which forces piston 100 up, thus separating contacts 98, 99 and thereby cutting off the supply to coil 94 and hence the gas supply to the motor. The piston 100 is attached to an armature 116 and electromagnet 114 locks unit 99, 100, 116 in the raised position which prevents re-closing of the circuitbreaker in case of latch failure. Gas in the motor 1 is dumped through a valve 58 as soon as latch means 31, 27 engage, On uncovering of 'orifice 66 by piston 15 during its upward stroke gas flowing through duct 67 depresses piston 60 which permits gas from the motor to enter through opening 62 which pushes piston 60 further down to uncover exhaust port 63. Valve 58 is maintained open, even if movement of piston 15 is reversed, by high pressure on piston 60. Tripping means for the circuit-breaker may be actuated either mechanically through a hand-lever 50 or a fault-responsive solenoid 49. It comprises a latch 45 which rotates in a clockwise direction on fault, and releases latch 42 and thus latch 34, a cam surface 37 of which (under influence of spring 6), releases roller 38 and allows pin 39 to slide in a groove 40 and lever 25 to move and contacts 4 and 5 to separate. A tail 33 on latch 34 releases the latch system 27, 31, a spring 55 then resetting the toggle ready for reclosure.
Patent GB-1021060-A (GB)
Title: Improvements in or relating to static polyphase converter systems
IPC: H02M7/538
Filed: 1963-02-14
Abstract: 1, 021, 060. Automatic control systems. AUXILEC. Feb.14, 1963 [Feb.15, 1962], No. 6061/63. Heading G3R. A system for obtaining a polyphase alternating current from a D.C. source S comprises a first path constituted by an oscillator OP, a modulator MOD. 1, an amplifier AMP. 1, a voltage transformer T1 1 and a filter F1L. 1, and a second path constituted by like elements OA, MOD2, AMP2, T1 2 and F1L. 2, both paths being connected to the input of a Scott-connected transformer TRA producing a three-phase output. The relative phase of the output voltages of the oscillators OP, OA is regulated by a phase comparator COMP. PH which is connected to the output of transformer TRA and which controls a phase-shift device DEP connected between the oscillators. The output voltage of the system is detected by a device DET and is compared with a reference voltage from a source REF in a comparator COMP. 1 which acts on the modulators MOD. 1 and MOD. 2; in addition, the relative amplitude of the voltages in the two paths is regulated by a further comparator COMP. 2 which compares the three output voltages from the transformer TRA and which also acts on the modulators MOD. 1 and MOD. 2. The arrangement is such that the polyphase D.C. output has a constant frequency and voltage and is symmetrical as between the different phases. The regulating action is modified by elements OU. 1 and OU. 2, connected to the comparator COMP. 1, to protect the system against over-loading and short-circuits.
Patent GB-1011904-A (GB)
Title: Optical scanning apparatus and scanning devices therefor
IPC: G01D5/20
Filed: 1964-02-13
Abstract: 1,011,904. Photo-electric position finders. ALBISWERK ZURICH A.G. Feb. 13, 1964 [March 4, 1963], No. 6080/64. Heading H4D. In the kind of photo-electric position finder having a reticle chopping the received radiation before it reaches the photo-cell, a known reticle pattern (Fig. 5, not shown) is modified by making the positions of the oblique transition lines 9 with respect to their two associated differing patterns 10, 11 of opaque and transparent zones correspond in alternate frames 16 but in consecutive frames are relatively displaced by a distance corresponding to the " periodic-difference " ratio between patterns 10, 11 such that, in operation, transitional deviations between the instants at which lines 9 scan the projected target spot and the instants at which the pattern change actually causes pulse-width change in the photo-cell output, are relatively opposed in consecutive frames. The reticle may be a rotary disc or an endless band. Ambiguities in the position finding are thereby reduced.
Patent GB-228375-A (GB)
Title: Improvements in or relating to machines for printing words and figures on cheques, dividend warrants and the like
IPC: B41K3/00
Filed: 1924-03-10
Abstract: 228,375. Horner, J. H. March 10, 1924. Type-wheel machines; platen-impression arrangements; paper-supports. - In machines such as are described in Specification 211,305, comprising two type-rollers for printing amounts on cheques &c. in both words and figures, the impression-platen is so arranged on a rocking support that it can be raised or lowered to print first from one type-roller and then from the the other, the arrangement enabling the same machine to deal with cheques &c. having the word and figure spaces at different intervals; the impression-platen may also be adjustable longitudinally for adjusting the printing position on the cheque &c., or from printing on the stub. A platen roller 1 having an apron 3 for retaining the cheque &c. is mounted in a frame 5, which can slide horizontally on a carrier 7 slidable vertically on a frame 2 which is pivoted at the bottom and can be rocked by means of a link d operated by a hand-lever. The frame 5 is retained in the set horizontal position by means of a spring-pin 12 engaging notches, and screws 4 are provided for limiting the movement of the frame. The carrier 7 rests in the upper position on catches 10, releasable, by a hand-lever 11, and in the lower position on buffers 14. In operation the carrier is placed in the upper position and an impression is taken from the word-type roller b ; the carrier is then dropped and, after turning the platen roller to bring the space for figures into position, an impression is taken from the figure-type roller c. The platen roller is adjusted longitudinally to cause the printing to be received in the correct places on the cheque &c., or on the stub.
Patent GB-180075-A (GB)
Title: Improvements in and relating to the operation of alternating-current repulsion motors
IPC: H02K27/06
Filed: 1921-02-23
Abstract: 180,075. British Thomson - Houston Co., Ltd., (General Electric Co.). Feb. 23, 1921. Alternating-current commutator machines.- For dynamically braking a repulsion motor, the exciting component of the stator winding is connected across the supply line and the com. pensating part of the stator winding is connected in parallel with the exciting winding with reversed polarity, the result being that up to a certain speed the machine runs with shunt, characteristics and beyond this speed a braking induced current flows in a closed circuit through the stator coils. As shown in Fig. 1, the exciting and compensating coils 13, 14 are connected to the mains 15 through a resistance 16 and coupled single and doublepole switches 17, 18, 19. For normal running, the switches are thrown to the left, the circuit being through the blade 19, coils 14, 13, resistance 16, and blade 17. For braking, the switch is thrown to the right so as to connect the exciting winding 13 to the mains at 17, 18 and the compensating coil 14 in parallel with the coil 13 through the conductor 19<1>, sufficient resistance being included at 16 to limit the current to the desired value. In the form shown in Fig. 2, a relay 25 is included in the braking circuit to open the connection of the intermediate switch blade 18 to the exciting coil 23 when the braking current reaches a predetermined value. When this occurs, the stator windings are cut off from the line and the motor continues to give a braking torque by running as a self-excited generator. An alternative form is shown in which the motor runs on an autotransformer connected across the line instead of running directly on the line as in Fig. 2. The method is particularly applicable to crane motors where the lowering of the load is controlled by braking action.
Patent GB-514151-A (GB)
Title: Apparatus for the sterilization of food products
IPC: A23L3/16
Filed: 1938-02-28
Abstract: 514,151. Sterilizing liquids. HUGHES, C. L. (Little, Inc., A. D.). Feb. 28, 1938, No. 6173. [Class 49] Liquid food products are sterilized by first pre-heating the liquid and then subjecting it to a heat shock by subjecting a small moving portion of the liquid to the action of steam, which commingles therewith, the liquid being delivered to.the steaming zone at a pressure which prevents ebullition although the temperature is raised to above the normal boiling point. The liquid is drawn from a vat 10 to a sterilizer 12 having steam nozzles 13 which raise the temperature to 212‹-230‹F., the maximum temperature being held for a few seconds only. Steam 'escapes through the vent 14 and the liquid is delivered through the pipe 18 into a vacuum chamber 19 which is maintained under vacuum by the pipe 20. The liquid is then delivered by a pump 22 into a heat interchanging cooler 24 and from thence into a storage chamber 26. A pump 30 delivers the liquid to a rotary drum heater 31 supplied with steam through a valve 42 controlled by a pressure regulator 43. The pressure of liquid supply to the heater 31 is controlled by a relief valve 38 venting into a return pipe 35. A metering pump 45 delivers the material through a heater 50 into a chamber 51 in which excess steam and dissolved air are liberated. The sterilizer 60 is supplied with liquid by a turbine pump 61 which is operated at a speed in excess of requirements. The discharge pipe 62 of the pump is bifurcated at 64 to supply end spaces 66 of the sterilizer. The steam supply pipe 81 is likewise bifurcated and delivers steam through openings 73 into spaces 74. Tapered nozzles 75 are aligned with tapered nozzles 76 so that the liquid is entrained with the steam and delivered at a temperature of about 260‹F-280‹F. to a centre space 67. The liquid then ascends in a.chamber 70 having a plurality of plate baffles which agitate the liquid, and is discharged therefrom into a closed reservoir 98. from which it drops by gravity through a cock 100 having a removable perforated plate in its plug so that the escape aperture can be varied in size. The liquid passes into a chamber 108 in which the temperature is maintained below atmospheric, the steam so generated being released through the valve 109. The liquid is then delivered into packages 110 in the packing machine 112. A final sterilization mav be effected in the retort 114.
Patent GB-295339-A (GB)
Title: Improvements in or relating to bobbins for textile purposes
IPC: B65H75/26
Filed: 1927-03-05
Abstract: 295,339. Spencer, G., and Hamilton, P. J. D. March 5, 1927. Bobbins. - Wooden bobbins having an enlarged base 2 of conical form are provided with a sheath of vulcanized rubber, balata, guttapercha or like resilient material 3 applied to the base to prevent slipping of the yarn wound thereon. The cured material may be applied to the base, the adjoining edges having a feather or scissor edge, or partlycured rubber or the like may be applied thereon and afterwards cured, or the base may be dipped a number of times in a solution of rubber, each application being dried before the subsequent dip. Graphite, carborundum or the like may be mixed with the rubber to provide a non-slipping and resilient surface. The surface of the rubber or like coating may be plain or corrugated. The bobbin may be slightly tapered as at 5, Fig. 2, and the edge of the sheath slightly undercut as at 7.
Patent GB-1389187-A (GB)
Title: Carbonated 1-lysine
IPC: A61K9/46
Filed: 1973-02-08
Abstract: 1389187 Effervescent compositions LABORATOIRES UPSA 8 Feb 1973 [8 Feb 1972 1 Feb 1973] 6272/73 Heading A5B [Also in Divisions C2 and C6] Pharmaceutical compositions for oral administration are made effervesant by incorporating an addition product of CO 2  and 1-lysine and an acid which may be pharmaceutically active e.g. acetyl, salicylic acid, glycine phosphate and/or calcium phosphate or magnesium mono basic phosphate.
Patent GB-177958-A (GB)
Title: Improvements in and relating to scrub and like brushes
IPC: A46B5/02
Filed: 1921-02-24
Abstract: 177,958. Kelly, M. E. Feb. 24, 1921. Grip, facilitating; hand protectors.-The back of a scrubbing or like brush is formed with corrugations on its side edges to serve as finger receiving recesses, separated by rounded projections. These may be formed on an auxiliary back member secured to the back of the brush. As shown in Fig. 1, the brush back 1 is formed with recesses 3 and projections 4, the recesses serving to engage the fingers and the projections protecting them during use. Fig. 2 shows an auxiliary back member 5 fitted to an ordinary brush back, the said member 5 being grooved to fit over the back and being attached thereto by screws 6 as shown in Fig. 3.
Patent GB-954194-A (GB)
Title: Improvements in or relating to compositions comprising plant growth regulants
Inventor: STOVELL FREDERICK ROBERT
IPC: A01N25/26
Filed: 1960-02-23
Abstract: Solid compositions comprising a plant-growth regulant in intimate contact with a waterinsoluble solid resinous carrier which is thermoplastic or solvent soluble according to the parent Specification also comprise or are coated with less than 50% by weight of the composition of at least one substance selected from boric acid, a fluoborate, a metaborate, a pyroborate, monoamino - borontrifluoride, pentachlorophenol or a metal salt thereof.  The compositions are preferably in the form of granules or pellets coated with particles of the additive of which at least a major proportion are below 30 microns in size.  The term "plant growth regulant" refers to compounds which are defoliants, herbicides, substances causing chlorosis, root-growth promoters and inhibitors and substances which hasten seed germination, promote elongation of stems and petioles, overcome dormancy of plant organs and accelerate the transition from the vegetable to flowering stage.  A specified active compound is 2,4-dichlorophenoxy acetic acid.ALSO:Solid compositions comprising a plant-growth regulant in intimate contact with a water-insoluble solid resinous carrier which is thermoplastic or solvent soluble according to the parent Specification also comprise or are coated with less than 50% by weight of the composition of at least one substance selected from boric acid, a fluoborate, a metaborate, a pyroborate, monoaminoborontrifluoride, pentachlorophenol or a metal salt thereof.  The compositions are preferably in the form of granules or pellets coated with particles of the additive of which at least a major proportion are below 30 microns in size.  The term "plant growth regulant" refers to compounds which are defoliants, herbicides, substances causing chlorosis, root-growth promoters and inhibitors and substances which hasten seed germination, promote elongation of stems and petioles, overcome dormancy of plant organs, and accelerate the transition from the vegetative to flowering stage.  A specified active compound is 2,4-dichlorophenoxy acetic acid.
Patent GB-724297-A (GB)
Title: Automatic frequency-control system for high frequency oscillation generators
IPC: H03J7/04
Filed: 1953-03-06
Abstract: 724,297. Automatic frequency-control systems. HAZELTINE CORPORATION. March 6, 1953 [March 12, 1952], No. 6320/53. Class 38 (4). [Also in Group XL (c)] The frequency limits of a frequency-sweep oscillator of the velocity-modulation type are stabilized by developing a control voltage which depends on the amplitude of the oscillations at the sweep limits. The system is particularly applicable to the frequency-modulated radar apparatus shown in Fig. 1, in which a reflex klystron oscillator 10 has its frequency swept over a band by a saw-tooth oscillation B, Fig. 3, applied to its repeller electrode 13 by a generator 40 controlled by pulses A from a multi-vibrator 39. The outgoing FM wave from the aerial 22 is reflected by, for example, the ground G, is received on an aerial 23, and mixed with the transmitted wave in the modulator 24 to provide a beat frequency. This is amplified at 25 and fed to a frequency detector 26 whose output, amplified at 27, displays the range on an indicator 28. The outgoing wave is also applied through a lead 50 and contacts 43 to an amplitude detector 42, the detected output C, Fig. 3, being delayed by a circuit 44, amplified and inverted in polarity at 45, and fed to a coincidence mixer valve 46, in the form shown at C<SP>1</SP>, Fig. 3. As indicated in the diagram, Fig. 2, the amplitude of the oscillations generated by the klystron 10 varies with the voltage of the repeller electrode 13 to form separated active zones M1, M2, M3 representative of different modes of oscillation. Assuming that the middle zone M2 is used, the klystron is normally swept over the frequency range b, c centred at a and provides the input C<SP>1</SP> to the mixer 46. The mixer is prepared for opening by the positive portion of the pulses A applied to the grid 48 from the multivibrator, but is rendered conductive only by those alternate crests C1<SP>1</SP> of the input C<SP>1</SP> on the grid 47, which crests synchronize with the positive pulses A on the grid 48. The corresponding anode current is integrated by an anode network 52, 53 to provide a normal anode voltage which is transferred through a series of resistors to the repeller electrode of the klystron. If the sweep limits move to the position d, e, Fig. 2, the curve D represents the output of the amplitude detector 42, and this curve assumes the form D<SP>1</SP> as applied to the mixer 46. As the operative peak D1<SP>1</SP>, Fig. 3, falls below the level r for opening the mixer, no anode current can pass, and the anode voltage rises to reduce the mean frequency of the klystron until the operative range again lies symmetrically on the curve M2. Similarly if the sweep limits move to the position f, g the curves E, E<SP>1</SP> represent the detected output, and the operative crests E1<SP>1</SP> supply a larger anode current in the mixer 46, and result in a rise in the mean frequency of the klystron.
Patent GB-345453-A (GB)
Title: Improvements in and relating to impregnated fibrous materials or bodies
IPC: C08L1/02
Filed: 1930-02-26
Abstract: In a process of impregnating artificial felted fibrous materials or bodies such as paper, cardboard, pulp, papier m<\>zach<\>ae and hollow-cast pulp bodies, instead of the hard waxes employed in the parent Specification, molten Montan wax pitch, brown coal wax pitch and similar pitchy residues derived from wax-containing materials are used.  Additions to the pitchy materials may include waxes such as "cable wax" (a mixture of Montanwax pitch and Montan wax), saponified waxes, resins, pitch and tarry products from other sources.
Patent GB-432343-A (GB)
Title: Improvements in or relating to method of and means for forming metal articles, more particularly bolt heads or the like, by upsetting
IPC: B21K1/44
Filed: 1935-03-01
Abstract: 432,343. Forging bolts &c. KUHNE, J., 34, Burgunderstrasse, Heerdt, and KUHNE GES., 131, Hansa-allee, Oberkassel, both in D³sseldorf, Germany. March 1, 1935, No. 6569. [Class 83 (iv)] The invention is directed to the more rapid production of bolt heads by upsetting in machines of the type in which the work is gradually uncovered during operation. The apparatus comprises, as shown, a die 5 carrying the work 14, and an upsetting die 16, the movement of the die 5 backwardly to uncover the work being accelerated toward the end of the operation. The die 16 is carried by a mechanically operated slide 15, through which passes a rod 22, capable of engaging the die holder 3, and forcing it backwardly against the action of a spring 9. The rod 22 is moved by a lever 23, pivoted at 25 on the slide 15, and carrying a roller 27 engaging a fixed cam surface 26. The cam surface provides the required acceleration of the backward movement of the die holder 3. Disc or other strong springs 20 prevent strain on the machine. The movement of an ejector 12 is timed to agree with that of the slide 15. The die 5 comprises a stepped tube, which is adjusted by means of an interchangeable sleeve 7, a screw threaded ring 6 and washers 8. The die 16 has an interchangeable bottom 17 to vary the cavity. Instead of the construction shown for operating the work holding die, it may be moved positively in both directions by a cam and linkage, the cam having two concentric parts joined by parts giving quick movement.
Patent GB-1068770-A (GB)
Title: Bladed member adapted for use on a fluid flow machine
Inventor: PETRIE JAMES ALEXANDER
IPC: F01D5/08
Filed: 1966-02-15
Abstract: 1,068,770. Turbine and compressor blades. ROLLS-ROYCE Ltd. Feb. 15, 1966, No. 6695/66. Addition to 926,084. Heading F1T. In a modification of the invention claimed in Specification 926,084, a turbine rotor bladed member 16 comprises a root portion 19 diffusion bonded or brazed to the rotor disc 15, a platform 18 and a shroud 21. Angularly spaced wall portions 24, 25 extend between the shroud 21 and platform 18 at opposite ends of each member 16, the portions 24, 25 on adjacent members 16 co-operating to form complete hollow aerofoil blades (26), Fig. 3 (not shown). The turbine driving gases flow through spaces 27. The shroud 21 of each member 16 has a tongue (22) engaging a groove (23) in the shroud of the adjacent blade member. A gap 33 is provided between each cooperating tongue and groove through which cooling air supplied to the interior 31 of each blade 26 through apertures 29, 30 leaves the blade. Ribs may project from the wall portions 24, 25 into the interior 31 to improve cooling. Cooling air also leaves the blade through a further aperture (34), Fig. 5 (not shown), adjacent the blade trailing edge. A tongue and groove connection may also be provided between adjacent platforms 18. The construction is applicable also to turbine stator blades and compressor rotor and stator blades.
Patent GB-525833-A (GB)
Title: Improvements in and relating to the manufacture of wheels for aeroplanes
IPC: B21K1/28
Filed: 1939-03-01
Abstract: 525,833. Making wheels for aircraft. ELEKTRON CO. March 1, 1939, No. 6728. Convention date, March 1, 1938. [Class 83 (iv)] Forging dies.-In making an aircraft wheel having a channel-shaped rim which widens stepwise towards the exterior a blank is pressed in preliminary dies, Fig. 2, to a dish shape the edge 5 of which has the finished form of one bounding surface of the wheel and merges into the web 4 with a bulge. The blank is then reversed and pressed in final dies, Fig. 4, with x multi-section intermediate insert 8 having the form of the rim.
Patent GB-272292-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: H02K5/132
Filed: 1926-03-11
Abstract: 272,292. Cooper, T. L. R. March 11, 1926. Pumping-machines.-A submersible electric motor of the vertical shaft type carries a pump S on its shaft, the volute chamber Q of which forms a part of the motor base Q<2>. The water delivery from the pump passes up an annular cooling jacket P around the motor casing to the outlet p<2> or it may alternatively enter at P<2> and leave via the chamber O<1>, in which case the jacket and chamber O<1> act as reservoirs for priming the pump.