baber/WOPTO huggingface dataset:
Patent GB-278044-A (GB)
Title: Electric generating sets for superimposing alternating currents on currents in distributing mains
IPC: H02J13/00
Filed: 1926-05-28
Abstract: 278,044. Muck, O. May 28, 1926. Rotary converters and motor-generators; alternating-current commutator machines.-In a power transmission system having means for superimposing on the line alternating-currents of different frequencies for operating resonance relays &c., the frequency of the alternating-current generator is varied cyclically over the desired range, and a frequency selector causes impulses of the desired frequency to be imposed effectively on the line circuit. In the arrangement shown in Fig. 1, the currents imposed on the line I, II are produced by a motor-generator or rotary converter M, G, the variation of frequency being effected by a cyclic variation of the speed of the motor M due to the variation of a resistance Z in its field circuit. The resonance relays &c. are so designed that they do not respond if the frequency band is run through at a uniform rate; to operate a particular relay the corresponding frequency must be prolonged. This is effected by arranging, in the circuit of the motor RM driving the rheostat, a resistance W which is normally short-circuited by contacts 1, 2, 3 of a frequencyselector FW, comprising a series of resonance relays any one of which can be switched by hand or by a. master clock into the circuit of an auxiliary generator g having a frequency equal or proportional to that of the generator G. When the frequency produced by the generator g reaches that corresponding to the selected relay FW, the associated contact 1, 2, or 3 opens the circuit around resistance W, thus causing motors RM, M to slow up and prolong the current imposed on the mains. In order to prevent a variation of speed, and therefore of frequency, when the generating set is connected to the mains, the set may be normally connected to an artificial load circuit, or a, resistance in the armature circuit of the driving motor may be varied when the load is increased, or a compound wound rotary converter may be used, or a retardation indicator responding to a drop of speed may cut out resistances in the motor armature and generator field windings. A commutator machine excited by a smaller low frequency machine may be used, the speed of the exciter being then solely regulated. In order that the speed of the generator set shown in Fig. 1 need only run up to that necessary to produce the frequency ranges required at any given time, the controlling rheostat Z, Fig. 2, may have a series of extra contacts C, C1 C2 &c. connected to switches b, b1 b2, &c. If these switches are all open, the oscillating rheostat arm d when moving clockwise gradually cuts in resistance until it engages a contact c0, when the resistance is short-circuited, the frequency rising steadily during this movement. If, however, the first four switches b - - b3 are closed, the resistance is short-circuited as soon as the arm d reaches contact c3, and the speed of the motor and frequency generated at once falls, thus reducing the frequency range and maximum speed of the generator.
Patent GB-317024-A (GB)
Title: Improvements in interleaving apparatus for printing machines
IPC: B41F23/06
Filed: 1928-05-08
Abstract: 317,024. Crabtree & Sons, Ltd., R. W., Johnson, C. B., and Evans, A. B. May 8, 1928. Set-off, preventing.-Set-off sheets are fed into position for interleaving with printed sheets by means of a reciprocating carriage having an endless flexible platform thereon adapted to carry the set-off sheets below the delivery point of the printing machine, the platform then being actuated so as to drop the sheet on the pile during the backward movement of the carriage. The carriage e has spindles e<2>, e<3> mounted thereon which carry wheels e<6> supporting the carriage on guide rails b<1>, and endless tapes pass over rollers e<4>, e<5> on the spindles e<2>, e<3>, and rollers b<4>, f<3>, f<4> mounted on the main framing b. Freewheel devices e<7>, b<5>, which act alternatively according to the direction of movement of the carriage, are provided on the spindles of the rollers e<4>, b<4>, so that the tapes are stationary relatively to the carriage during the movement towards the pile table and move relatively to the carriage to deposit the sheet as the carriage moves back. The sheets are fed while the carriage is stationary, from table a on to a platform a<2> over which the tapes pass, and which has a roller a<1> mounted at its forward end. As the carriage begins to move, the sheet is nipped between the roller a' and the tapes and is fed forward. To reciprocate the carriage, chains are attached to the ends of the carriage and a pair of sprocket wheels i<2>, i<3> are provided on a shaft i, the chain j<2> from end end passing over one wheel i<2> in the opposite direction to which that from the opposite end passes over the wheel i<3>. A reversing electric motor controlled electrically from the printing machine is coupled to the shaft i so as to oscillate it and thus reciprocate the carriage. Means are provided for bringing the carriage to rest at the ends of its travel and comprise a brake drum k adapted to be engaged by a brake block k<1> on a lever k<2> pressed upwardly by an adjustable spring l on a rod l pivoted to a lever m<1> in engagement with a cam m on the shaft i, the cam m being designed so as to cause the braking elements k, k<1> to come into operation at the required times. In order to release the drum k when the carriage begins its reverse movement, a solenoid o operated electrically from the printing machine operates a spring-controlled bell-crank lever o<1> so as to allow the pivot of the lever k<2> to drop. The framework b is supported on standards c attached to a base having running castors thereon, and jack-devices are provided for elevating the mechanism if it is to be maintained in any desired position. The columns c may be made telescopic for adjusting the height of the apparatus to different machines.
Patent GB-956073-A (GB)
Title: Improvements in the preparation of textile fibrous materials for spinning
Inventor: SHAW JACK
IPC: D01G23/08
Filed: 1962-04-09
Abstract: 956,073. Endless conveyers. T. M. M. (RESEARCH) Ltd. April 9, 1963 [April 9, 1962; March 20, 1963], Nos. 13620/62 and 11114/63. Heading B8A. [Also in Division D1] Apparatus for feeding fibres to a group of machines provided with individual feed shoots includes a continuously driven conveyer with a horizontal course, means to discharge the material transversely into the shoots and means for removing excess material from the shoots. One embodiment employs a paddle 23 that is arranged to swing intermittently to sweep fibres into shoots 10 first on one side then on the other of conveyer 17. From shoots 10 fibres pass between vibratory plates 12, 13 to delivery rollers 14, 15. A stripping roller 22 operates to remove excess of fibres and to impel them towards a suction pipe 20. In order to ensure that the same amount of material is swept into all the shoots, a small overfeed is arranged on the conveyer and any material remaining on the conveyer joins the fibres drawn through the suction pipe 20. Other embodiments employ pneumatic arrangements for discharging from the conveyer into shoots. One has an air supply pipe 25, Fig. 3, with a slit 251 divided by arcuate partitions 252 that direct air over conveyer 17 so that fibres are deposited in shoot 10 while air passes through a guided outlet 101. The air blasts are arranged to be effective intermittently in relation to the speed of the conveyer 17 and apparatus may be so constructed that air is directed from either side of the conveyer. An air suction embodiment is also described.
Patent GB-549185-A (GB)
Title: Improvements in the construction of hard-chine boat hulls floats and the like and constructional elements therefor
IPC: B63B1/18
Filed: 1941-10-23
Abstract: 549,185. Boat hulls &c. JOHNSTONE, L. W. Oct. 23, 1941. No. 13624. [Class 113 (ii)] A hard skinned boat or float is made by uniting narrow metal strips some of which are bent torsionally to provide the desired contours. Fig. 13 shows a form in which Z strips, joggled at 4, have the limbs 1a, 1b respectively welded together to form inner and outer skins, the intermediate parts 1c of the strips forming distance pieces. The sections so formed may be directly welded to each other, or connected by angle pieces 19, 20, 21, Fig. 15.
Patent GB-118176-A (GB)
Title: Improvements relating to Collapsible Gas-holders for use in connection with Motor-driven Vehicles.
IPC: B60K15/07
Filed: 1917-09-22
Abstract: 118,176. United Automobile Services, Ltd., and Jolly, J. C. Sept. 22,1917. Safety cut - off valves. - Collapsible gas-holders for motor vehicles are provided with means for automatically cutting- off the supply of gas on the completion of charging. A valve 3 in the inlet pipe is closed when the trip device 7 is raised by the connexion 13 when the holder 2 is inflated. The trigger or trip 7 is mounted on a spindle which has an actuating spring surrounding the spindle. The arm or lever 5 of the valve is outside the charging-pipe and engages with the trip 7. In a modification the valve is held in the open position by a vertically-arranged spring-controlled sliding trigger or plunger working within a cylinder or barrel, the upper end of the plunger being connected to the upper portion of the gas bag by a cord, &c.
Patent GB-748860-A (GB)
Title: Cyclopentanophenanthrene derivatives and process for the preparation thereof
IPC: C07J75/00
Filed: 1952-11-21
Abstract: The invention comprises D 4-19-norandrosten-3:17-dione, and enol and thioenol ethers thereof of formula <FORM:0748860/IV(a)/1> (wherein X is O or S, and R1 is a lower alkyl group possessing from one to six carbon atoms, or an aralkyl group), together with a process for the preparation of D 4-19-norandrosten-3:17-dione by reducing a lower alkyl ether of estrone with an alkali metal in liquid ammonia, followed by hydrolysis of the product with a mineral acid and oxidation with chromic acid.  The enol and thioenol ethers may be prepared by treatment of the norandrosten-dione with an alcohol or mercaptan in the presence of a catalyst, e.g. p-toluene sulphonic acid or hydrochloric acid, or in the case of the ethoxy derivative, by treatment with ethyl orthoformate.  In examples (1) 3-methoxy estrone in dioxan is treated with lithium or sodium metal in liquid ammonia, ethanol and then water added, and the oil obtained on ether extraction is then hydrolysed with 4N hydrochloric acid and finally oxidized with chromic acid in acetic acid to yield D 4-19-norandrosten-3:17-dione.  (2) This product is refluxed in benzene with pyridine hydrochloride, ethanol and ethyl orthoformate to yield D 3,5-19-nor-3-ethoxy-androstadien-17-one.  Specifications 662,400, 745,636, 748,824 and U.S.A. Specification 2,363,338 are referred to.
Patent GB-699230-A (GB)
Title: Improvements in and relating to electric heaters
IPC: F24H3/04
Filed: 1952-05-29
Abstract: 699,230. Electric heating. BRITISH THOMSON-HOUSTON CO., Ltd. May 29, 1952 [May 29, 1951], No. 13681/52 Class 39(iii) An electric heater comprises a base 1 supporting two vertically spaced opposed reflectors 3, 5 having a common vertical axis 8 on which is positioned an electric heating unit 10 between the reflectors. The reflectors are formed by revolving a parabola 12 about the vertical axes 8, the axis 14 of the parabola being inclined to the horizontal, e.g. about 15 degrees above horizontal as in Fig. 2, and the focus 13 of the parabola lying on the periphery of the heating unit 10. An electric motor 15 drives a fan 17 to draw air up over the lower reflector 3 and impel it outwardly over the surface of the upper reflector 5 which is supported by a grill 9.
Patent GB-647780-A (GB)
Title: Improvements in colour television
IPC: H04N9/24
Filed: 1947-05-22
Abstract: 647,780. Television receivers. LOCAN, A. May 22, 1947, No. 13792. [Class 40 (iii)] In a colour television receiving apparatus in which successive scans are reproduced in different colours by means of a screen with sets of lines or strips corresponding to the colour components utilized the scanning beam moving in its correct path is caused to produce a single impulse from one of a number of lightresponsive devices corresponding to the colours and deviation of the beam from its normal path is effective to produce one or more additional pulses included between the single. impulses and employed to apply a correction to the frame scanning generator. In the receiver shown, the black and white images produced on the screen 17 of a cathode-ray tube 14 are reflected by a mirror 15 through a Schmidt correcting lens 16 on to a viewing screen 10 having sets 12, 13 of coloured lines. Extensions 11 of the lines are masked from the viewer and are backed by mirrors 20 which reflect the scanning beam from the coloured extensions on to two photo-electric cells 21, 22 provided with filters 23, 24 corresponding to the colour components employed. Normally, one impulse only is generated during the scanning of a line but. the occurrence of two pulses during the line period due to the straying of the beam on to a succeeding line, which is of a different colour, is utilized to control a bridge circuit, Fig. 3 (not shown), so that a correcting impulse is applied to the frame generator. Some of the extensions of the strips 12, 13, indicated at 12<SP>1</SP> 13<SP>1</SP>, are rendered non-reflecting so that when a correction has been initiated, and is in the process of being effected, it is not continued or repeated by immediately following coloured extensions which might result in continuous correction of the deflection of the scanning beam.
Patent GB-237060-A (GB)
Title: Improvements in boat engaging and releasing gears
IPC: B63B23/58
Filed: 1924-06-06
Abstract: 237,060. Barnett, J. R., and McGruer, E. June 6, 1924. Hooks, slip and closed; hooks, automatic release. - Consists of a pair of hooks for use in raising and lowering a boat, which are moused simultaneously but can be separately manipulated by hand. Each hook comprises a hook member a pivoted at the shoulder between a pair of plates b which are in turn pivoted to a double sling rod c. A mousing-bar d is pivoted within the head of the hook a, one end of which bar engages the point of the hook while the other end is attached to a cable e. The cable e passes over a fair lead f mounted in the sling rods and is connected by a hand tackle to the cable e of the other hook, so that a pull in the hand tackle mouses both hooks. A removable pin g passes through the plates b and holds the mousing-bar d in position when the hook member a is tilted for connecting or disconnecting the falls. Stops are provided on the hook member a, the plates b, and the rod c to limit the movement of the parts. The Provisional Specification states that the cable e may be encased and that the hand tackle may be replaced by a ratchet-drum.
Patent GB-106462-A (GB)
Title: Improvements in and relating to Internal Combustion Engines.
Inventor: RIPER LEWIS CAESAR VAN
IPC: F02B41/06
Filed: 1916-10-02
Abstract: 106,462. Riper, L. C. van. May 15, 1916, [Convention date]. Valves.-Charges of rich mixture and air are separately compressed in cylinders F E, the piston of the cylinder C being connected to a crank 45 degrees or thereabouts behind the crank of the piston D. At the end of the compression stroke of the piston D, the pressure of the charge in the cylinder F is increased bv the addition thereto of the charge of air from the cylinder E, ignition occurring during the transfer and after the piston D has passed its top dead centre. The explosion acts simultaneously in both cylinders. Communication between the two cvlinders is controlled by a sliding sleeve valve 11; the inlet and oulet ports 19, 20, 21 are controlled separately by beat valves.
Patent GB-372100-A (GB)
Title: Improvements relating to aeroplanes
IPC: G09B19/16
Filed: 1931-05-12
Abstract: 372,100. Aeroplanes for training purposes. ROE & CO., Ltd., A. V. and CHADWICK, R., Newton Heath, Manchester. May 12, 1931, No. 14010. [Class 4.] A training aeroplane comprises three cockpits with dual flying control, the flying control column and rudder bar of the middle cockpit being mounted upon a removable panel in the bottom of the fuselage, the said panel being so located that when removed it provides the bombing sight hole for bombing instruction. Fig. 1 shows the aeroplane adapted for flying instruction, interconnected control columns, rudder bars, tail adjuster wheels, and engine controls being fitted in front and middle cockpits a, b, the rear cockpit c being provided with a cover c<1>. The rear control column d, rudder bar e and their mounting f are carried by a triangular panel g covering an aperture in the fuselage. Speaking tubes y extend between the cockpits and are provided with tappings for removable ear and mouthpiece connections. A cover t may be provided for blind flying instruction. For bombing instruction the rear controls are disconnected and the panel g removed, cockpit b is covered, cover c<1> removed, and a sliding seat q, Fig. 4, running on rails r substituted for seat k. A ramp m is secured to the fuselage floor to support the bomber's chest. Removable bomb sighting instruments are fitted so that they can be used through the aperture j left by removal of panel g. Bombs n are carried by the wings and released by levers o, p. If the machine is not required for flying instruction or bombing, the hole j may be closed by a removable panel.
Patent GB-798342-A (GB)
Title: Preparation of terephthalic acid
Inventor: O'NEILL WILLIAM ALEXANDER
Filed: 1956-05-07
Abstract: Terephthalic acid is prepared by oxydizing p-di-isopropyl benzene with an oxygen-containing gas in a medium consisting mainly of an organic acid in which the p-di-isopropyl benzene is soluble and in the presence of a catalyst consisting of a manganese compound together with a lead compound.  Saturated fatty acids containing 2-8 carbon atoms are suitable solvents, and acetic, propionic, butyric and caproic acids are preferred. Suitable lead and manganese compounds are the lead and manganese salts of organic acids, and the acetates are specified.  A suitable concentration of each of the catalysts is 1 per cent, based on the hydrocarbon, but other amounts can be used and the ratio of lead to manganese may also vary.  In examples: (i) air is passed through a mixture of p-di-isopropyl benzene and caproic acid containing 1 per cent manganese acetate and 1 per cent lead acetate at 180 DEG  C. for 60 hours; (ii) as (1) using butyric acid and a reaction temperature of 160 DEG  C.; (iii) as (ii) using a reaction temperature of 140 DEG  C.; (iv) oxygen is passed under pressure into a mixture of p-di-isopropyl benzene and acetic acid containing lead and manganese acetates at 180 DEG  C. Specifications 737,439 and 762,849 are referred to.
Patent GB-474219-A (GB)
Title: Improvements in or relating to refrigerating systems applicable to cabinets
IPC: F25D11/02
Filed: 1936-01-07
Abstract: 474,219. Refrigerating. TENNANT, W. J. (Kelvinator Corporation) Jan. 7, 1936, No. 14095/37. Divided out of 473,356. [Class 29] Compression machines and systems.-A refrigerating-machine particularly for a cabinet comprises a sealed motor-compressor unit, aircooled condenser, and high and low temperature evaporators 46, 40 respectively separated by a heat-insulated partition 32 and connected in series by a pipe having a weighted valve 105 to maintain a predetermined pressure and temperature differential between the evaporators. The machine may be formed as a unit for insertion through the door of the cabinet with the evaporators 46, 40 in the food storage and ice-making compartments respectively. The supply of current to the compressor motor is controlled by an adjustable switch 80, Fig. 3, operated by a thermostat 82 in contact with the high temperature evaporator 46. The thermostat contains an expansible fluid and is connected to the spring-loaded bellows 87, Fig. 8, of the switch which, through a pivoted rod 90 and linkage 92, controls the switch contacts 94. The switch thus regulates the pressure range within which the evaporators function, and may be set so that frost forms on the evaporator 46 during operation of the machine. In a modification, the supply of current to the motor is controlled by switches 275, 277, Fig. 9, connected to thermostats 279, 282 in contact with the low and high temperature evaporators 250, 255 respectively. Further, a weighted valve 320 is provided in the liquid refrigerant supply pipe 270 to the evaporator 255 to prevent vaporization in the pipe. Reference has been directed by the Comptroller to U.S.A. Specification 1,979,638.
Patent GB-112911-A (GB)
Title: Improvements in Insulators for Telephone, Telegraph and other Wires.
Inventor: TAYLOR THOMAS
IPC: H01B17/34
Filed: 1917-10-01
Abstract: 112,911. Taylor, T. Oct. 1, 1917. Insulators.-Leading-in insulators for telephone &c. wires of the type described in Specification 2959/07 are provided with a plain disk cap k for closing the cavity containing the sealing and insulating medium. The cap may have a downwardly projecting part or parts adapted to enter the insulating medium and to be held thereby. In a modified construction, the cap is formed with flanges engaging over the sides of the insulator, or a recess is formed in its under surface to receive the sealing-medium.
Patent GB-1470400-A (GB)
Title: Cleansing compositions
IPC: C11D3/20
Filed: 1974-03-29
Abstract: 1470400 Detergent compositions JOH A BENCKISER GmbH 29 March 1974 [9 May 1973] 14160/74 Heading C5D A cleansing composition for use in dish washers comprises (A) 5 to 35% by wt. of a mixture of from 5 to 35 parts by wt. of citric acid or an alkali metal or ammonium salt thereof with 1 part by wt. of cyclohexane 1,2,3,4,5- pentacarboxylic acid and/or cyclohexane 1,2,3,4, 5-pentacarboxylic acid-1-methylene carboxylic acid or an alkali metal or ammonium salt thereof; and (B) 1 to 95% by wt. of a water-soluble alkaline compound. Compounds (B) may be an ammonium or alkali metal hydroxide, silicate, carbonate or bicarbonate. Optional ingredients are (C) up to 5% of a chlorine bleach, e.g. alkali metal hypochlorite or alkali metal chlorisocyanurate; (D) up to 5% of an antifoam e.g. silicone oil paraffin oil, fatty alcohol (1-3) ethylene oxide adduct alkylphenol (1-3) ethylene oxide adduct; (E) conventional additives.
Patent GB-640128-A (GB)
Title: Improvements in or relating to container closures
IPC: B65D41/18
Filed: 1948-05-26
Abstract: 640,128. Closures. ARMSTRONG CORK CO. May 26, 1948, No. 14215. Convention date, June 10, 1947. [Class 125(iii)] A closure of plastic material e.g. of polyethylene, plasticized nylon or the like to be screwed to a container without the use of a packing washer has a domed top 5 with an annular and preferably curved sectioned recess 4 providing controllable stretch at the sealing surface. The closures may be of screw-cap type, as shown in Fig. 4, or of lug type. The recess may be provided on the underside of the closure.
Patent GB-611866-A (GB)
Title: Improvements in frames for motor-cycles
IPC: B62K11/04
Filed: 1946-05-10
Abstract: 611,866. Motor-cycle frames. ETABLISSEMENTS TERROT. May 10, 1946, No. 14247. Convention date, Aug. 16, 1945. [Class 136 (iii)] A frame for motor-cycles comprises in combination two symmetrical lateral elements 1, 1<SP>1</SP>, each constituted by a single tube bent into the required shape to provide an uninterrupted frame member, the lateral elements being joined by welding together their juxtaposed upper portions a, a<SP>1</SP> at c and front portions b, b<SP>1</SP> at d and being attached to the steering head 2 by welding their jointed front portions b, b<SP>1</SP> along a substantial length by welded joints e. The portions a, a<SP>1</SP> and b, b<SP>1</SP> are preferably of elliptical transverse section, while the remainder of the tubes is of circular section. Cross-bracing members 3, 4 are provided to maintain the correct spacing between the lateral elements 1, 1<SP>1</SP>.