baber/WOPTO huggingface dataset:
Patent GB-838152-A (GB)
Title: Improvements in or relating to electric safety fuses
IPC: H01H85/42
Filed: 1957-11-28
Abstract: 838,152. Fusible cut - outs. LANGE, E. Nov. 28, 1957 [Nov. 30, 1956], No. 37113/57. Class 38 (1). A fuse tube having one or more expansion chambers 23, 24 communicating through conical passages 25, 26 with a narrow channel 22, has conductors 32, 33 arranged longitudinally in the expansion chambers so that when the fuse wire 34 melts arcs are formed at the ends of the contact members and are subjected to a strong flow of arc-extinguishing medium by which they are extinguished. This medium may be air or other gas or a liquid and the insulating material of which the inserts into tube 20 are made may produce gas under the action of the arcs. A valve at the outflow aperture may control the flow of the arc-extinguishmedium. The number of arcing points may be increased.
Patent GB-837745-A (GB)
Title: Process for the manufacture of epoxy resins
IPC: C08G59/14
Filed: 1957-11-28
Abstract: Low viscosity glycidyl ethers of polyhydric phenols are produced by reaction of a polyhydric phenol with more than the equivalent amount of an epihalohydrin in presence of alkali metal hydroxide and 0.1-13% of a monohydric phenol.  Mono or polynuclear monohydric phenols may be used and may be substituted by alkyl, alkenyl, cycloalkyl and cycloalkenyl radicals, halogens or ether or ester radicals, e.g. phenol, 3 - vinylphenol, p - tert.-butylphenol or octylphenol, 3,5-dimethylphenol, 3,5-dibromo-4-allylphenol, or 3-allyl-3,5-dimethoxy-, 3-allyloxy-, 2-cyclohexenyl-, m-(8-pentadecenyl), 2,4-diallyl-, 2,4,6-triallyl-, p-chlor- and p-iso-octyl-phenols.  The polyhydroxyphenols include the usual bisphenol and like dihydroxy diphenyl dimethyl and dirpopylmethanes, chlorhydroquinone, phloroglucinol, dihydroxynaphthalene, 2,2 - bis - (4 - hydroxy - 2-methyl)-propane, 2,2 - bis - (2 - chlor - 4 - hydroxy - phenyl) - propane, 2,2 - bis - (2 hydroxynaphthyl)-pentane, 1,3-bis-(4-hydroxyphenyloxy)-2-hydroxy-propane, 3-hydroxyphenylsalicate; condensates of phenol with cardanol as described in U.S.A. Specification 2,317,607, condensates of phenol and unsaturated fatty oils as described in U.S.A. Specification 2,031,586 or condensates of phenols with aliphatic diols as described in U.S.A. Specification 2,321,620.  In examples: (1) 5% by weight of phenol was added to a mixture of 1 mol. bisphenol in 10 mols. epichlorhydrin containing 1-2% water and the mixture was heated to 80 DEG  C. when 2 mols. solid NaOH were added.  The mixture was reacted at 90 DEG  C. and the purified glycidylether obtained was found to have a viscosity of 70 poises as compared with 150 poises for the product obtained without phenol.  Mixed with asbestos and diethylaminopropylamine the inventive product bonded aluminium sheets together more securely than similar compositions prepared without the monohydric phenol with or without added phenyl glycidyl ether.  Other examples describe similar casting resins and adhesives prepared with differing amounts of phenol or with different phenols.  Catalysts used for the coating resins are the 2-ethylhexoate salt of 2,4,6 - tris - (dimethylaminomethyl) - phenol or hexahydrophthalic anhydride. Specification 776,495 also is referred to.
Patent GB-803338-A (GB)
Title: Adjustable treadle for sewing machines
IPC: D05B75/00
Filed: 1956-12-05
Abstract: 803,338. Sewing machines. SINGER MANUFACTURING CO. Dec. 5, 1956 [Dec. 29, 1955], No. 37157/56. Class 112 [Also in Groups XXIV and XXXI] Driving: motors, starting and stopping. An adjustable mounting for the treadle controlling the driving motor of a sewing machine comprises a treadle plate 46 secured by means of a screw pin 63 which passes through an elongated hole 53 extending from the front towards the back of the plate and is screwed into one of a pair of threaded holes 61, 62, formed in the base 19 of the stand. The treadle 38 is adjustably held by clamp brackets 42 to a rod 41 mounted in the upturned ends of the treadle plate, and is adjustably connected to the control arm 26 of the motor. Stands. The rectangular table top 16 and motor 23 are supported by a bracket 17 mounted on a cylindrical column 18 supported on an elongated cast iron base 19 by means of a boss 21.
Patent GB-1168417-A (GB)
Title: Printer
IPC: B41J11/20
Filed: 1968-08-05
Abstract: 1,168,417. Selective printing. INTERNATIONAL BUSINESS MACHINES CORP. 5 Aug., 1968 [21 Aug., 1967], No. 37214/68. Heading B6F. A selective printer includes a platen 18 which is movable towards or away from type elements in a carrier 12 under the influence of a sensor 61 detecting the thickness of a document 16 to be printed on. The platen 18 is urged by a spring 58 against a wedge bar 32 which is movable longitudinally of the platen by a cam 54 driven by an electric motor 52 to adjust the positions of cam surfaces 34, 36 on the bar 32 relative to fixed wedge blocks 38, 40. The movement of the platen is constrained by a pin 50 engaging a slot 48 in the platen in a direction perpendicular to the line of type in the carrier 12. In operation, a document is removed and replaced by first swinging a gate 14 carrying the carrier 12 about a pivot 15, a three-pole, two-way switch 100 being closed thereby so that the motor 52 is actuated and the platen is retracted fully to a point where a stop 82 opens a switch 80. Closure of the gate 14 throws the switch 100 so that the motor is reactuated, driving the platen towards the type carrier 12 until the sensor 61 engages the document and a flange (Fig. 2, not shown) on the carrier, a latch lever 64 bearing the sensor then pivoting so that a spring biased lever 68 is released, thus acting to open a switch 70, and stopping the motor 52. Such movement of the platen closes the switch 80, preparing for another cycle. Retracting movement of the platen acts to latch the lever 68 in a position closing the switch 70. Locking devices.-As the platen moves towards the type elements, an arm 84 is urged towards a limb of the gate 14 so that when the gate is opened the arm 84 moves into a position preventing closure of the gate until the platen is fully retracted. Hammer impression.-The type elements (17), Fig. 2, not shown, are pivotally carried by members. (28) disposed in a train along a rail (30) guiding the type elements past a print line. A row of print hammers (24) are actuated through push rods (26) to effect impression. A resilient impression control member (32) limits the velocity of the hammers.
Patent GB-1160733-A (GB)
Title: An apparatus for Interlacing Filaments with the Aid of a Gas
IPC: D02J1/08
Filed: 1966-08-19
Abstract: 1,160,733. Spinning yarns. ALGEMENE KUNSTZIJDE UNIE N.V. 19 Aug., 1966 [20 Aug., 1965], No. 37337/66. Addition to 1,127,164. Headings D1F and D1W. In apparatus as described in the parent Specification for interlacing a bundle of continuous filaments to form a yarn or strand or to join the ends thereof by subjecting the filaments to the action of a turbulent gas e.g. air, stream, manual movement of one of the members and the slit between their operating and open (thread-inserting) relative positions operates a gas closure member e.g. a nozzle or a pin, to ensure that, in the latter position, the gas supply is cut-off or largely diminished.
Patent GB-1043966-A (GB)
Title: Food mincers
Inventor: EVANS WILLIAM THOMAS
IPC: B02C18/30
Filed: 1964-09-12
Abstract: 1,043,966. Mincers. JOHN HARPER & CO. Ltd. Aug. 31, 1965 [Sept. 12, 1964], No. 37382/64. Heading A4C. The worm 10 of a manually driven food mincer is provided at one end with an integral boss 11 formed with a pair of peripheral bayonet grooves 12 which detachably receive a pair of lugs 20 inturned from the cap shaped end 19 of the operating arm 16. The groove 12 comprises a circumferential portion 14 in continuation of an axially extending portion 13, the side of the first portion 14 adjacent the handle being inclined in screw thread like fashion so that in operation the lug 20 frictionally clamps in the groove 14. The circumferential portion 14 has an extension 15 beyond its junction with the axial portion 13 to prevent inadvertent separation of the handle 16.
Patent GB-523039-A (GB)
Title: Improvements in mechanism for tensioning blankets around the impression cylinders of printing machines
IPC: B41F27/12
Filed: 1938-12-22
Abstract: 523,039. Printing machines. BRADSHAW, R. Dec. 22, 1938, No. 37386. [Class 100 (ii)] Impression blankets.-The anchoring pins 6 for one end of an impression blanket 2 are movable from the anchoring position shown in full lines to the position shown in dotted lines where they are directed towards the narrow slot 5 and thus are more readily accessible for threading the end of the blanket thereon. The pins are carried by a rotatable shaft 7 which may be secured in the anchoring position by a pawl engaging a ratchet wheel on the end of the shaft, or by a bolt passing through an arm on the end of the shaft and threaded into a hole in a plate fixed to the end of the cylinder.
Patent GB-1483221-A (GB)
Title: Elastic surface wave transducer
IPC: H03H3/08
Filed: 1974-08-29
Abstract: 1483221 Surface wave transducers K SHIBAYAMA 29 Aug 1974 [31 Aug 1973] 37739/74 Heading H3U The fingers 14 of an electrode E1 of a surface "wave transducer 11 are arranged in groups, each group having an electrode 25 integral therewith, which is capacitatively connected by a thin dielectric film 26 to a common conductor 13. Fingers 14 uniformly overlap with interdigitated fingers 16 of electrode E2, and by varying the capacitance connected to each group the excitation voltage can be weighted, e.g. as Further capacitances (CA1-CAX, Fig. 1, not shown) may be provided between adjacent fingers 14, 16, having a film dielectric which, like dielectric 26, may be silicon monoxide or silicon dioxide. The transducer may be used in conjunction with a similar transducer, a conventional uniform overlap transducer, or as shown an apodized transducer 12. Arrangements are envisaged in which inductors and resistors in addition to capacitors are used to weight the transducer.
Patent GB-1470639-A (GB)
Title: Machine for spreading seed or fertilizer
IPC: A01C15/04
Filed: 1975-09-15
Abstract: 1470639 Machines for spreading seed or fertilizer AMAZONEN-WERKE H DREYER 15 Sept 1975 [14 Sept 1974] 37880/75 Heading AID Seed or fertilizer is supplied from a vessel to eight discharge outlets 8 via eight pipelines 7 supplied with air from a blower 3 and supported by main side arms 12 pivoted about longitudinal ones 13 to a central member 2 and also by supplementary side arms 17 pivoted about vertical axes 19 to the main side arms 12, tension springs 22 holding the supplementary side arms 17 both in the laterallyextending operating position and in the transport positions folded alongside the respective side arms 12, by means of an overcentre arrangement. Each pipeline 7 is connected to its own adjustable discharge port 4 in the vessel 1, and the discharge outlets 8 are provided with distributor plates 9. For transport, the supplementary side arms 17 are pivoted rearwardly to position 17' and the main side arms 12 are pivoted upwardly until they lean on the vessel 1. Arms 12 may be locked in this position by bolts (not shown).
Patent GB-848546-A (GB)
Title: Electrical panelboard
IPC: H02B1/056
Filed: 1956-12-12
Abstract: 848,546. Switchboards. SQUARE D CO. Dec. 12, 1956 [Feb. 7, 1956], No. 37908/56. Class 38 (5). [Also in Group XXXVI] A fuse or switchboard comprises a boxlike enclosure 1 in which is mounted an interior assembly consisting of a channel-shaped base 18 on which main busbars 26, 27 are insulatingly mounted and connected by transfer bars 54 to a main switch or fuse 51 having line terminals 53. Neutral bars 61 are provided on either side of the main switch or fuse. Attached to the bus-bars 26, 27 is a plurality of transferbars 45, alternate bars 45 being connected to a different bus-bar and extending towards the other bus-bar. The bars 45 terminate in cylindrical portions 48 and are cranked at 47, each portion 48 being adapted, in conjunction with beaded edge portions 24, 25 of the base 18, to detachably support two single or double-pole fuse bases 72, 71 or switches. Reference has been directed by the Comptroller to Specification 793,885.
Patent GB-1450384-A (GB)
Title: Weight operated sensing means
IPC: G01V3/10
Filed: 1972-08-15
Abstract: 1450384 Measuring weight electrically E D LUSTY 15 Nov 1973 [15 Aug 1972] 37913/72 Heading G1N [Also in Division G4] A transducer for measuring weight comprises a cable 14, Figs. 1, 2, laid out in an inductive pattern on the ground and covered by two rubberized mats 11, 12 with a metal foil or sheet 10 between them, whereby the inductance of the cable 14 is altered by the distortion of the assembly when a weight is placed on the upper mat 11. The variable inductance is associated with a first oscillator whose output is compared with that of a reference oscillator to derive a phase or frequency difference proportional to the weight. When the difference exceeds a threshold value, the signal operates a switch for a door operating mechanism, or a traffic control system or a burglar alarm.
Patent GB-523328-A (GB)
Title: Improvements relating to lubricating apparatus
IPC: F16N7/38
Filed: 1938-12-30
Abstract: 523,328. Lubricating systems. TECALEMIT, Ltd. Dec. 30, 1938, No. 37926. Convention date, .Feb. 23, 1938. Addition to 513,707. [Class 12 (iii)] The invention of the parent Specification is modified by providing means for initiating the operation of the driving means of the lubricant pump, and means responsive to a predetermined pressure in the lubricant delivery line for stopping the said driving means automatically. The means for initiating the operation of the pump driving means may be operated automatically and periodically. As shown, a pump 9 delivers lubricant through piping 7 to the lubricant injectors 3, and a relief valve 31 causes a reduction of pressure in the piping 7 after operation of the injectors to reset the latter, as in the parent Specification. The pump 9 is driven by an air motor 15 having an air supply valve 19 which is open when a solenoid 61 is energized. When the relief valve 31 is actuated it opens a switch 81. For a single operation of the system a switch 65 is moved to close momentarily contacts 67, 69 to energise a coil 79 which actuates and holds closed a switch 87 to energise the solenoid 61. The pump 9 then operates the injectors 3 and when the relief valve 31 moves, the switch 81 is opened to de-energize the coil 79, open the switch 87, and thus close the valve 19 and stop the air motor 15. Before a second operation of the. lubricating system can occur the switch 65 must again be moved to close the contacts 67, 69. If the lubricant piping 7 is long, one or more bleeder valves 103 may be included in the system. Such valves relieve the oil pressure in the piping 7 whenever the air motor 15 is stopped and as shown each valve 103 is actuated by a solenold 113 in parallel with the solenoid 61. For periodic automatic autuation of the lubricating system the switch 65 is moved to connect permanently contacts 67, 71 and cause continuous rotation of a motor 117. The latter drives through gearing a pair of relatively adjustable cams 121 having followers which permit contacts 123 to be opened and closed over a certain period during each revolution of the cam shaft. Closure of the contacts 123 energizes a motor 115. This motor likewise has cams 139 and contacts 141 and when the latter are closed the solenoids 61, 113 are energized and the lubricating system operates as before. An electric motor connected across the contacts 85, 93, may replace the air motor 15. In a modification a single timing motor replaces the motors 115, 117. In other modifications the end of the spindle of the relief-valve 31 acts directly either to break the circuit through the driving motor of the pump 9, or to close the valve controlling the air supply to the driving air motor. Specification 523,327, and U.S.A. Specifications. 1,633,304, 1,654,673, and 1,704,238 are referred to.
Patent GB-1386248-A (GB)
Title: Keyboard encoding apparatus
IPC: H03K17/969
Filed: 1971-08-12
Abstract: 1386248 Keyboards BURROUGHS CORP 11 Aug 1972 [12 Aug 1971 13 Sept 1971] 37939/71 and 42533/71 Heading G4H [Also in Division B6] A keyboard encoding apparatus has a plurality of depressible key code bars, e.g. 4, and a plurality of mutually parallel pivotable code bails 6-12, actuation of a key code bar causing permutatively arranged encoding surfaces A, M-R on the bar to engage a predetermined number of the code bails to provide a coded output from electric-signal-producing transducers, there being a universal device engaged and operated by every key code bar to gate the transducers, and a master key to disable the keyboard structure and enable the transducers to accept a code from separate storage. In the preferred embodiment, the universal device is the bail 9. Each key bar when depressed, rotates every bail, some in one direction and some in the other. Flag members on the ends of the bails are thus moved or not moved into respective light paths from a lamp to respective photo-detectors to give a coded electric output to a store, which controls a gas matrix display via a buffer and character generator. Bail 9 gives a strobe pulse from its photodetector. The master key (which is mechanically lockable, 46-50, Fig. 1, not shown) unblocks all the light paths and also closes a switch to start a punched-tape drive, the punched tape being read using the same lamp, light paths and photo-detectors. The photodetector corresponding to bail 9 receives a strobe pulse from the sprocket hole. Depression of any key prevents mechanically (via the bails) depression of any other. In the keyboard input case, the strobe pulse may alternatively be produced by aswitch closed when any key is depressed.
Patent GB-1280686-A (GB)
Title: Rooftop multizone air conditioning units
IPC: G05D23/24
Filed: 1969-07-29
Abstract: 1280686 Air conditioning plant ITT INDUSTRIES Inc 29 July 1969 [2 Aug 1968] 38024/69 Heading B1T [Also in Divisions F4 and F3] In an air conditioning plant, a filter unit comprises fibre glass or dense foam filter mats 47 or a filter blanket passed between rollers. A warning light is actuated when the set of filter mats or the filter roll requires replacement in response respectively to a device for measuring the pressure difference between opposite sides of the mats and to a limit switch actuated near the end of the roll. A fan 53 draws air through the filter unit.
Patent GB-1148297-A (GB)
Title: Improvements relating to electrical control systems
Inventor: BOWLES JOHN PATRICK
IPC: G05F1/42
Filed: 1966-08-25
Abstract: 1,148,297. Automatic control systems. ENGLISH ELECTRIC CO. Ltd. June 6, 1967 [Aug.25, 1966], No.38157/66. Heading G3R. [Also in Division H2] A closed loop control system for controlling the D.C. level of an electrical output has a high gain at zero frequency and at, at least, one predetermined frequency above zero, and a relatively low gain at other frequencies. As shown in Fig. 1, the system is applied to an A.C. to D.C. converter to eliminate ripple components in the D.C. output. A multi-phase arrangement 5 of grid controlled rectifiers, e.g. of the mercury arc type, is supplied from an A.C. source 6 and produces a D.C. output on high voltage transmission lines 8; a phase control unit 10 controls the firing angle of the arrangement 5, and thus the level of the D.C. output, in response to a control signal Vc which has a first component dependent upon the difference between actual and desired values of the D.C. output and a second component dependent on the presence of ripple in the D.C. output at at least one predetermined frequency. The first component of the signal Vc, on line 20, is derived from a comparator 24 which receives one input from a D.C. transformer 27 and another input from a reference source 30, and the second component, on line 22, is derived from a frequency selective circuit 36 which receives an input from a voltage divider 38 connected across the D.C. output lines 8. The two components are combined in an adder 41 to produce the control signal Vc. The circuit 36 may include a number of band pass filters corresponding to a plurality of particular frequencies which it is desired to suppress Fig.2 (not shown). In operation, the unit 10 responds to the signal Vc by adjusting the phase of firing pulses on lines 12 relative to the phase of the incoming A.C. as represented on a line 14 so as to alter the output from arrangement 5 in such a direction as tends to reduce Vc to zero; thus not only is the error between the desired and actual D.C. level reduced to zero, but the harmonics selected by the circuit 36 are also eliminated.
Patent GB-636472-A (GB)
Title: Improvements in or relating to phase modulation transmission systems
IPC: H03K7/04
Filed: 1946-12-31
Abstract: 636,472. Phase modulation. BENDIX AVIATION CORPORATION. Dec. 31, 1946, No. 38160. Convention date, Jan. 18. [Class 40 (v)] For producing phase-modulated waves the square-wave output of a stabilized modulated multivibrator is differentiated and the resulting time-modulated train of pulses used to control the phase of a radio frequency wave. In one embodiment a flip-flop multivibrator 21, 22 is triggered by pulses, from a crystalcontrolled pulse generator, applied to the grid of valve 21 through condenser 35. The modulation voltage from source 40 is applied through condenser 36 and inductance 37 to the grid of valve 22. The square wave output from the anode of valve 21 has its negative-going edges modulated in time, and is differentiated in circuit 19. The resultant unmodulated positive pulses are clipped off and the modulated negative pulse train inverted and fed to a class C amplifier with a resonant anode circuit tuned to the pulse recurrence frequency. A phase modulated sine wave output results which may be frequency multiplied to produce the desired frequency for radiation. In another embodiment a synchronized free-running multivibrator is used and the inter-valve couplings are dimensioned as to cause operation to take place on a short straight portion of the discharge characteristic of the condenser which determines the modulation characteristic which is thus rendered linear.
Patent GB-906139-A (GB)
Title: Improvements relating to heat treatment of rubber
IPC: C08J3/24
Filed: 1959-11-11
Abstract: <PICT:0906139/IV(a)/1> Rubber mixtures are vulcanized by heating in a fluidized bed of finely divided solid material.  The solid material may have a particle size between 0,002 and 0,1 inch and the mixture may be extruded into a heated fluidized bed and vulcanized continuously while being drawn through the bed, or articles may be immersed in the bed and vulcanized.  Specified rubbers are natural rubber, polyisoprene, polybutadiene, butadiene-styrene, butadiene-acrylonitrile, polyurethane, polyethers, ethylene-propylene copolymers, silicones and fluorinated hydrocarbon elastomers. Apparatus for carrying out the process and comprising a horizontal trough 1 with gas or steam inlets at the base 3 and 4 with the solid material, e.g. sand, 7, resting on distributers 6 such as porous rings, tiles or candle-type distributers and carrying in at heating elements 8, the mixture being extruded from extruder 11 under guide 13 to haul-off mechanism 14, is described as are also variations using a vertical column or a U-tube.
Patent GB-325642-A (GB)
Title: Improved drinking trough or receptacle for animals
IPC: A01K7/04
Filed: 1928-12-29
Abstract: 325,642. Hill, H. Dec. 29, 1928. Float valves.-A drinking-trough A is provided with a float F carrying a seating Q adapted to be engaged by a valve N carried by the bottom of the trough. A lip B is fitted round the edge of the trough so that an animal in drinking presses on the middle of the float and permits water to flow from the supply pipe S past a non-return valve J, through the member N into the trough. As the trough fills, the float rises until the seating Q is pressed against the member N, thus cutting off the supply.