baber/WOPTO huggingface dataset:
Patent GB-1143968-A (GB)
Title: Apparatus for comparing the frequencies of two signals
Inventor: AULT CYRUS FRANK
IPC: G01S13/58
Filed: 1966-03-29
Abstract: 1,143,968. Frequency comparators. WESTERN ELECTRIC CO. Inc. 29 March, 1966 [6 April, 1965], No. 13746/66. Heading H3A. In an arrangement for comparing two frequencies f 1 , f 2 , the signals are gated alternately, by means of gates 181, 281 into a comparator 201 to produce at its output a squarewave signal the amplitude of which is proportional to the frequency difference. In the embodiment of Fig. 3, two comparators are used and the gates are so arranged that, during one half cycle of the control signal from circuit 50, signal f 1  is fed via gate 181 to comparator 201 and signal f 2  is fed via gate 282 to comparator 202. During the other half cycle gates 281 and 182 open to feed f 1  to comparator 202 and f 2  to comparator 201 resulting in square wave signals at the comparator outputs. Similar gates 601, 611, 602, 622 in the output circuits are switched in synchronism so that a voltage proportional to signal f 1  appears at point 471 and a voltage proportional to f 2  appears at terminal 470. These signals are fed to a differential amplifier 475. Each comparator includes an oscillator which controls a gate, Fig. 1 (not shown), to chop the received signal and produce the required output signal. In operation this output signal is also used as a control signal to adjust the oscillator frequency to that of the incoming signal f 1  or f 2 , so that the circuit operates in the manner of a phase comparator.
Patent GB-458561-A (GB)
Title: Improvements relating to gas ovens, particularly those intended for the preparation of food
IPC: F24C15/32
Filed: 1936-05-15
Abstract: 458,561. Gas ovens. MAATSCHAPPIJ VAN BERKEL'S PATENT NAAMLOOZE VENNOOTSCHAP, 2, Voltastraat, Rotterdam, Holland. May 15, 1936, No. 13807. Convention date, May 15, 1935. [Class 126] In a gas oven having one or more openings 5 in the bottom, a gas burner 6 below each opening, and a flue 7 communicating at its lower end with each opening and extending from it into the oven space, the lower part of each flue is open to the oven space so that gases are drawn from the oven into the flue and entry of excess air through the opening 5 is thereby prevented. In the form shown a flare 8 open at the bottom to the oven space is provided at the lower part of each flue. One or more discharge openings 9 are provided at or near the bottom of the oven, a baffle partition 10 preventing direct passage of gases between these openings and the flares 8. The flues 7 are closed at the top and provided with one or more discharge openings 12 in the side walls.
Patent GB-448814-A (GB)
Title: Improvements in compositions for covering roads, floors or the like and in the process for the manufacture thereof
IPC: C08L95/00
Filed: 1935-05-11
Abstract: In the manufacture of road covering and like bituminous compositions, intended to be laid cold, in which the binding agent is heated to at most 130 DEG  C., to effect the mixing, the adhesion of the binder to the mineral aggregate is increased by the addition of dry powdered peat or lignite, or humine substances, e.g. humic acid extracted therefrom.  In a modification, stone is coated with a thin film of bituminous matter in the presence of powdered lignite or the like. In this case a hard road tar or asphalt requiring a higher temperature than 130 DEG  C., to effect the mixing may be used.  A road covering composition is made from the prepared stone by mixing it with a suitable binder, which may be a bituminous emulsion.
Patent GB-967912-A (GB)
Title: Volumetric apparatus
IPC: G01N9/02
Filed: 1963-04-08
Abstract: 967,912. Determining cubical contents. MONSANTO CO. April 8, 1963 [April 20, 1962], No. 13913/63. Heading G1X. Small irregularly shaped samples have their volume measured by introducing them into a first chamber 24 formed between a valve 20 and a partition 18 of fritted glass or other material such that it is permeable to gas but not to liquid, mercury or other liquid in a U-tube 12 is moved from a position in which both limbs have the mercury at the-same height, corresponding to that of an electrode 48, so that there is a second chamber 26 between partition 18 and the mercury level,to a position wherein mercury contacts the partition 18, and the volumes of the samples are calculated from the various pressure measurements made by a manometer 50. Initially the mercury level is adjusted by opening valve 34 and manipulating a clamp 36 so that when a known pressure source 84 is applied through valves 82, 74 and 20 to both limbs of the mercury, the level of the latter is just about to fall away from contact 48. The dried sample is now introduced into chamber 24 through opening 46. The tube 12 is pivoted about mounting 14 until the mercury abuts partition 18, valve 20 is turnedto close the righthand limb of tube 12 from connection with tubing 72 and tube 12 is returned to its vertical position. The liquid level therefore descends below partition 18. Valve 74 is set so that air may be forced by bulb 73 against the mercury in the left hand limb until that in the right hand limb contacts partition 18 and valve 20 turned to close all passages. Subsequently valve 20 is turned so that the left hand column is closed and the right hand column subjected to source 84, the pressure being read on manometer 50. Then valve 20 is turned to connect the left hand limb of tube 12 with tubing 72, valve 82 closed and needle valve 78 opened slowly so that the left hand column has a vacuum exerted over it until the contact 48 is immersed in approximately one centimetre of mercury, whereupon needle valve 78 is closed. The right hand column of mercury is now subjected to a pressure greater than that in the rest of the system and by turning valve 82 to allow air to leak in through leak valve 90, drying tube 80 and valves 74, 20,the mercury in the left hand column gradually drops until it passes contact 48, whereupon relay R is actuated and this operates a solenoid 70 closing a clamp 60. The pressure is read on manometer M. The Specification gives the working equation used to relate the pressures obtained to the volume of sample desired.
Patent GB-388002-A (GB)
Title: Electrical rheostat
IPC: H01C10/38
Filed: 1931-05-11
Abstract: 388,002. Wire resistances ; variable resistances. ULITOWSKY, A. W., 1, Moshkow per, Leningrad, U.S.S.R. May 11, 1931, No. 13929. Convention date, Nov. 20, 1930. Void [Published under Sect. 91 of the Acts]. [Class 37.] An electric rheostat comprises a ribbon 1 of resistance material helically wound on edge and perforated so as to be carried on spaced insulating rods 3 between end-pieces 6, or the ribbon may be wound in notches provided on spaced strips 17 of insulating material which replaces the rods 3. These strips 17 may be made conducting or provided with a conducting coating so that the ribbon winding acts as a heat dissipator, or they may be provided with cooling fins 19. The ribbon may be waved or corrugated at its inner periphery to increase its radiation surface. In a variable rheostat a slide brush 10 bears on the turns of the ribbon 1.
Patent GB-817095-A (GB)
Title: Improvements relating to bedsteads
Inventor: WILSON ARCHIBALD HAMMOND
IPC: A47C19/20
Filed: 1955-05-14
Abstract: 817,095. Bedsteads; cots. EVERED & CO. Ltd. May 14, 1956 [May 14, 1955], No. 13988/55. Class 52(2) A child's bed or cot, convertible to be suitable for an adult, has a side barrier which can be removed or lowered and which has rails 18 and bars 19 slidably mounted on guide members 20, and an end barrier 27 which can be lowered to form an extension of the mattress support. As shown, the bedstead has upper and lower tiers 10, 11 and a length of tube 15 forming a ladder. Rails 18 terminate in apertured lugs 22, 23 through which pass guides 20 the aperture of lug 22 being a slot 23 so the barrier can be moved inwardly or outwardly to engage a pin 24 with a socket 25 in upper bracket 21, the lower bracket supporting a rubber buffer 26. The side barrier may be detached from the bedstead by releasing the screws securing brackets 21 to corner posts 12 or releasing the nuts securing guides 20 to the brackets. End barriers 27 each consisting of a U-shaped tube 28 secured to a tube 29 mounted on a crossbar 31 and a panel 32 have articulated stays 33 and releasable fastenings consisting of pins 35 on the corner parts engaging a hole in tubes 28.
Patent GB-197202-A (GB)
Title: Improvements in doll-head bearing and packing devices for drying cylinders and such lke
IPC: F16L27/093
Filed: 1922-05-18
Abstract: 197,202. Evans, W. P. May 18, 1922. Rollers or cylinders, hollow.-In a packing for drying-cylinders &c. of the type in which the axle d of the stuffing-box is packed by a rotating stuffing-box f rubbing on a seating a<4>, the stuffing- box is positively driven from the axle. The stuffing-box surrounds a reduced portion d<1> of the axle and is formed to engage flats d<2> on the larger portion of the axle The latter is supported in a bearing c with a grease-box b. The gland h is in the form of a cylinder having a closed end with perforations h<2> and adjustable by a screw &c. a<3>. Wings h' on the gland engage slots f<3> on the box. In a modification, the axle d is of the same diameter throughout and the gland h engages flats on the axle. Alternatively the box may engage the axle by a key and slot, or an eccentric groove in the box may contain a ball which grips the axle.
Patent GB-965877-A (GB)
Title: Process for improving the dye affinity of polyolefines
IPC: C08K3/22
Filed: 1963-04-09
Abstract: A method for improving the dye affinity of a polymer of an olefin comprises incorporating in the polymer a soluble organometallic or organometalloid compound and then decomposing the compound to give a volatile organic compound which is easily removed (e.g. by degassing or by leaving on heated rolls) and a residue of a metal or metalloid oxide or hydroxide which remains in a finely divided and uniformly distributed state within the polymer.  The polymer may be derived from ethylene, propylene, butene and/or styrene, and monomers such as vinyl acetate also may be present.  The preferred organicmetallic or organo-metalloid compound is a compound of Al, Ca, Mg, Si, B or Zn. The compositions obtained are readily dyed with mordant, dispersion and acidic dyes, and also may have other properties such as fixing free carboxylic groups or carbon dioxide, improved hydrophilic behaviour, the ability to slow down neutrons, and good receptivity for printing inks, finishing agents and adhesives.  Applications specified are film, tubes, fibres and filaments.
Patent GB-1101829-A (GB)
Title: Precise pouring apparatus
Inventor: MCALPINE CHARLES HUGH
IPC: G01F11/10
Filed: 1966-03-30
Abstract: 1,101,829. Casting apparatus. WINKEL MACHINE CO. Inc. 30 March, 1966, No. 14160/66. Heading B3F. [Also in Division B8] A device for delivering measured quantities of liquid, such as molten metal, to a container, such as a mould 32 comprises a measuring chamber 34 movable on a tube 18 located within a liquid reservoir 11, the chamber being raised and lowered by means of a linkage 56, 57, 62, and 64 under the control of a ram so that the liquid may be dispensed via the tube into a trough 26. The link 56 is pivotally connected to the piston (48, Fig. 1) of the ram which is actuated via a valve 50 controlled through an automatic means 74. In operation, when pressurized fluid is fed to a ram, the piston moves downwardly thereby raising the chamber 34 to a height determined by the abutment of the lower end of the piston with the end of an adjusting screw 52. The liquid in the chamber then flows through the tube into the trough 26 until the level of the liquid in the chamber reaches the top edge of the tube. The trough is then tilted under the control of the means 74 so that the molten metal flows into the mould, the degree of tilt of the trough being limited by stops 28, 29.
Patent GB-234293-A (GB)
Title: Improvements relating to drop hammers
IPC: B21J7/36
Filed: 1924-06-12
Abstract: 234,293. Bretts Patent Lifter Co., Ltd., and Brett, B. June 12, 1924. Power hammers.-Relates to drop hammers of the type in which the lifting belt is attached to a lever g, carried on oscillatory arms f, which is operated to press blocks c, carried thereby, on to a rotating drum b, by a second lever and hand rope e, and consists in arranging this second lever h at right-angles to the first and to the shaft a. The lever h may be curved about the shaft and be connected to the first lever by two links i, j. Specification 110,852 is referred to.
Patent GB-859655-A (GB)
Title: Improvements in or relating to direct-voltage converters
IPC: H02M3/338
Filed: 1959-04-27
Abstract: 859,655. Transistor oscillator circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 27, 1959 [April 30, 1958], No. 14294/59. Class 40(6). [Also in Group XXXV] To prevent voltage rise on no load, a transistor D.C. converter has its emitter base circuit connected in series in the direct current output circuit of the converter and shunted by a rectifier 10 (Fig. 1) which is connected in the pass direction for the output direct current. Transistors 1 and 2 cease oscillating temporarily when the load current is switched off. A slight leakage current in the blocking direction through diodes 11, 12 then gradually discharges electrolytic capacitors 14, 15 and 17 until it becomes insufficient to keep diode 10 cut off and the oscillator restarts and recharges the capacitors 14, 15 and 17. The voltage drop across diode 10 increases with load current and partially compensates for the decrease in voltage across windings 4 and 8 with increase of load current. An anti-interference choke 6 is provided in the emitter collector circuit. Rectifier 10 may be a point contact diode. with a threshold voltage slightly exceeding that of the base limiter path of transistors 1 and 2. Fig. 3 shows a converter of the type described in Specification 797,332 with the base emitter circuit of transistor 1 shunted by diode 10 while Fig. 4 shows a similar arrangement applied to the converter shown in Fig. 6 of Specification 769,445. Specification 844,075 also is referred to.
Patent GB-361814-A (GB)
Title: Improvements in or relating to the manufacture of highly active alkali coke briquettes for the production of alkali cyanides with simultaneous recovery of low temperature carbonisation products
IPC: C01C3/00
Filed: 1931-05-14
Abstract: Highly porous alkali-coke briquettes, for use in the preparation of alkali cyanides by treatment with nitrogen at high temperatures, are prepared by mixing the alkali material in a fine state with ground coal or lignite, and if desired with a binder such as sodium chloride, pressing the mixture into briquettes and subjecting the briquettes to low-temperature carbonization at about 400-550 DEG  C. The carbonization products are recovered.  The alkali starting materials referred to are the alkali metals, carbonates, hydroxides, oxides or sulphates and in particular sodium bicarbonate.  The low-temperature carbonization and the cyanidization may take place in the same furnace.
Patent GB-202711-A (GB)
Title: Improvement in drawer and shell match boxes
IPC: A24F27/00
Filed: 1922-05-22
Abstract: 202,711. Pickering, M. May 22, 1922. Drawer-and-shell boxes.-The shell of a matchbox is provided with a bent tongue which enters the drawer amongst the matches and acts as a stop to prevent the drawer from being completely removed. Fig. 2 shows a tongue C cut at the corner of a cardboard shell and adapted to be pressed down into the drawer. The gap formed by cutting the tongue is covered by an overlapping strip, or by a label and roughened paper. If the top portion of the shell is in two overlapping parts, the upper one has a hole through which a match may be inserted to depress the tongue. As shown in Fig. 4, the tongue is replaced by a bent wire staple, inserted through the top portion of the shell. This form is applicable also for a wooden box.
Patent GB-239462-A (GB)
Title: Improvements in and relating to collar studs
IPC: A44B3/02
Filed: 1925-06-02
Abstract: 239,462. Davis, M. L., and Brown, G. W. June 2, 1925. Studs.-A collar-stud comprises a base 8 and a split shank 9 forming resilient jaws the interiors of which are of angular section, in combination with a head 3 of greater length than width and a stem 4 fixed to the head and having a portion of angular cross-section disposed between the jaws of the shank with an enlargement 7 at the lower end, the shank 9 being of greater length than width in cross-section and the angular portions of the stem and shank jaws being tapered and the lower part 12 of the stem being of circular crosssection. The head 3 of the stud is passed through the buttonholes of a neck band and collar and then turned so as to lie at right-angles thereto, the cross-sectional shape of the shank 9 preventing the shank from turning in the button-holes. Fig. 4 is a sectional view with one of the shank jaws removed, and Fig. 5 is a transverse section of the stud.
Patent GB-277729-A (GB)
Title: Improvements in telemotor mechanism
IPC: B63H25/22
Filed: 1926-06-07
Abstract: 277,729. MacTaggart, H. H., and Scott, R. G. June 7, 1926. Telemotor apparatus.-In apparatus using telemotor mechanism, two telemotor systems are provided having a controlling wheel or member common to both and means whereby either can be brought into operative control with the wheel. The steering wheel 9, Fig. 1, is adapted to control either of two telemotors 2, 3, a lever 10 being provided to link up the particular system required. Telemotor 2 is in circuit with the receiver 21 and telemotor 3 with receiver 20, the receivers 20, 21 having common floating links 24 that are connected in turn with the floating levers 25 that are attached to the control pumps 26, 26a and to the hydraulic units 30 which actuate the rudder tiller 31. The telemotors 2, 3 are actuated by racks through pinions 50, Fig. 5, which are on shafts 50<a> carrying driving pinions 3<a>, 4, which gear through pinions 6, 5 with a pinion on the shaft 8 of the steering wheel. The pinions 6, 5 are on shafts 6<a>, 5<a>, which can be slidden by swinging the cross arm 11 on the axis of the linking lever 10, whereby when the pinions 5, 4 are in mesh the system 3 is in use, whilst the pinion 6 and the system 2 are inoperative, and vice versa. The shafts 5<a>, 6<a> carry crossheads. 13, 14 with pins 12, 12a, of which the pin 12<a> is shown in locking engagement with its pinion 3<a>. Each telemotor system is provided with a byepass device.
Patent GB-291441-A (GB)
Title: Improvements in or relating to electric radiators
IPC: F24C7/06
Filed: 1928-05-16
Abstract: 291,441. Canard, L. June 4, 1927, [Convention date]. Electric ratiators. - The heating element D is arranged between parallel bowl shaped or conical reflectors H, E, spaced apart on a vertical axis with their convexities directed downwards. The reflectors are secured together by bolts L and a wire cage M encloses the space between. them. The lower reflector and the heating element are mounted on a pedestal or alternatively the radiator is inverted and suspended from lugs on the bolts L. The reflectors may be fluted or embossed and may be of curved conical or spherical form. A cover J is fitted with an ash tray for a flower bowl. According to the Specification as open to inspection under Sect. 91 (3) (a) the positions of the reflectors are reversed when the radiator is suspended. This subject-matter does not appear in the Specification as accepted.
Patent GB-112752-A (GB)
Title: Improvements in Spark Plugs.
Inventor: BOUDREAU HENRY LUCILIUS
IPC: H01T13/14
Filed: 1917-10-05
Abstract: 112,752. Boudreau, H. L., (Assignee of Vilbiss, J. A. de). June 2, 1917, [Convention date.] Sparking-plugs.- A ball valve D is seated in a longitudinal bore a, in the plug body, communicating with the atmosphere by a lateral passage a<1>, and with the interior x of the plug by a passage formed by placing a gasket 2 between the plug body and insulator shoulder. The inner end of the plug body is divided longitudinally, some of the portions 7 being bent inwards towards the central conduct-or. to form a spark gap.
Patent GB-1495561-A (GB)
Title: Blocking of micropores in a structure
IPC: G21D1/00
Filed: 1974-04-01
Abstract: 1495561 Filling micropores of a structural member CENTRAL ELECTRICITY GENERATING BOARD 20 March 1975 [1 April 1974] 14420/74 Heading D1P A method of blocking micropores in a structural member such as a sodium/water heat-exchanger comprises exposing one of the faces of the exchanger to a vapour phase carbonyl, oxide or hydroxide of nickel and exposing the other face with a suitable reactant thereby causing the deposition of nickel or an oxide thereof in the micropores nickel oxide if deposited, being subsequently reduced to nickel by passing a reducing gas over the face of the exchanger to be in contact with sodium in use. Preferably the face to be in contact with sodium is exposed to vapour phase nickel carbonyl carried by oxygen-free carbon monoxide and the opposite face is exposed to either an oxygen-containing gas, e.g. air, or an inert gas, e.g. oxygen-free Argon or Nitrogen thereby depositing either the oxide of the nickel or the nickel itself in the micropores, the inert gas being a gas which does not react chemically with the other materials in the context. If oxide of nickel is deposited in the micropores continued circulation of the carbonyl and carbon monoxide or purging the carbonyl containing carbon monoxide with carbonyl free carbon monoxide and then passing carbon monoxide or another effective reducing agent, e.g. hydrogen, will cause the exposed surface of the nickel oxide plugs in the micropores to be reduced to metallic nickel. The carbonyl is passed over the face of the exchanger to be in contact with sodium and particularly so when using nickel oxide to block pores. Preferably one face of the exchanger is exposed to nickel carbonyl in an inert gas and the other face to a gas containing 0.1 to 1% by volume of hydrogen sulphide or carbon disulphide in air or in an inert carrier gas, which may be the same as that used for the carbonyl and which contains traces of water vapour up to 0.2% by volume and/or oxygen upto 2% by volume, the gases on the two faces being at substantially the same pressure. The nickel carbonyl is preferably transported in an inert carbon monoxide-free carrier gas such as nitrogen, argon or carbon dioxide and may constitute 10-20% by volume of the total gas phase on the carbonyl side of the member. The process may be carried out at temperatures of 290-400 K. and preferably at room temperatures, e.g. 290 K to 300 K. In a modified form one face of the exchanger is exposed to a mixture of nickel carbonyl and hydrogen sulphide with an inert carrier gas and the opposite face is exposed to air or to nitrogen containing oxygen or water vapour, the gases being at substantially equal pressures and at 290 K to 330 K. The method may be carried out at ambient temperature and at ambient pressure.
Patent GB-582101-A (GB)
Title: Improvements in or relating to apparatus for cooling liquids
IPC: A01J9/04
Filed: 1944-08-02
Abstract: 582,101. Milk &c. coolers. LAWRENCE & CO., Ltd., and MITCHELL, J. Aug. 2, 1944, No. 14738. [Class 64 (iii)] Milk &c. to be cooled or heated flows through perforations E<1>, E' in an annular trough E over the outsides .of two helically corrugated sheetmetal cylinders A', A', united by seam or stitch welding, brazing or soldering, and is collected in a trough F having an outlet F'. The upper and lower ends of the cooler are secured in rings C, D provided 'with ducts C' D' communicating with valved-pipes C' D' for the outlet and inlet respectively of the cooling fluid passing through the helical passages between the cylinders. By closing the valve in the pipe D' and opening the valve D<5> steam may be admitted to the helical passages.