baber/WOPTO huggingface dataset:
Patent GB-842057-A (GB)
Title: Improvements in or relating to two party-line telephone circuits
IPC: H04Q5/00
Filed: 1958-03-18
Abstract: 842,057. Sub-station circuits. NOMURA, T. March 18, 1958 [March 20, 1957], No. 8706/58. Class 40 (4). Subscribers on a party line are locked out when one subscriber is using the line due to the discharge of capacitors in the other subscribers' circuits, the charges on which are necessary to operate latching relays before a connection can be obtained to the line. As shown in Fig. 1, a capacitor 20 is charged over high resistance 21 and when cradle contacts 13 and 14 operate the capacitor discharges through relay 22 to operate the contacts 23 and 26 which latch up mechanically and connect the subscriber to the line. Once connected to the line, the low impedance of the calling subscriber's loop causes the other capacitor, or capacitors, of the other subscribers on the line to discharge. Other subscribers therefore on raising their handsets operate the cradle switch contacts 13, 14, but cannot operate the relay 22. When the calling subscriber dials the break impulses are insufficiently long to allow another subscriber to break in since the capacitors 20 must charge over high resistances 21. To release the connection cradle switch contact 14 connects up magnet 25 when a subscriber hangs up and releases the mechanical latch on the contacts 23, 26 of relay 22. To call a party on the same line a subscriber dials the wanted number of the party line subscriber and operates a switch to operate contacts 27, 28, to disconnect the bell set and to break the calling subscriber's loop over a capacitor 29 so that he can listen in and restore contacts 27, 28, when he hears the called party reply. Instead of charging capacitor 20 in series with resistor 21 in shunt with transmitter 7 it may be charged in series and by shunting resistor 21 with contacts of relay 22 the charge taken up by capacitor 20 as contacts 14 fall back may be used to operate magnet 25 in the release circuit, see Fig. 2, not shown. Contacts of the relay 22 may be provided to short-circuit the receiver of a sub-station when idle. The relay 22 and its release magnet 25 together with the switch with contacts 27, 28 may form a unit connected to the remainder of the sub-station by means of a four-wire cable, Fig. 3 (not shown).
Patent GB-526535-A (GB)
Title: Improvements in apparatus for washing and/or drying vegetable matter
IPC: F26B11/16
Filed: 1939-03-20
Abstract: 526,535. Washing vegetable matter. HAYES, A. H., and NICORESTI, J. C. March 20, 1939, No. 8776. [Class 28 (ii)] [Also, in Group XIII] Vegetable matter e.g. grass, leaves, fibres, seaweed is washed and dried in a container a in which revolving paddles c agitate the matter, washing liquid being supplied at e and removed at j, hot or cold drying gases then being supplied at f and passing off at m. Perforated plates h, k are provided in the container, which has an overflow drain valve and is semicylindrical at the bottom. The paddles c have adjustable ends d.
Patent GB-618246-A (GB)
Title: Magnetic recording-reproducing device
IPC: G11B15/70
Filed: 1946-03-21
Abstract: 618,246. Coating webs. BRUSH DEVELOPMENT CO. March 21, 1946, No. 8839. Convention date, April 18, 1945. Drawings to Specification. [Class 140] [Also in Groups XXXIV and XXXVIII] In a magnetic recording and reproducing apparatus using an endless steel tape, in which the tape is coiled on a disc and supported on a turntable, friction between the convolutions and between the tape and the turntable is reduced by the use of oiling devices. In one form the tape passes between the upper ends of wicks, the lower ends of which rest in a reservoir. In another form the edge of the turntable and the coil of tape is immersed in a reservoir of oil. In yet another form a directing fin on the bottom of the turntable extends into an oil reservoir and causes oil to be splashed through a slit in the turntable on to the tape.
Patent GB-1174043-A (GB)
Title: Improvements relating to the manufacture of Printed Circuits
Inventor: JOHNSON LEONARD JOHN WARREN
IPC: H05K3/24
Filed: 1966-03-01
Abstract: 1,174,043. Printed circuits. BRITISH AIRCRAFT CORP. Ltd. 28 Feb., 1967 [1 March, 1966], No. 8961/66. Heading H1R. In a method of producing metallized holes 6 interconnecting printed wiring 2 on opposite sides of an epoxy-glass board 1, the whole assembly is first given an immersion coating 3 of Cu, followed by two successive coatings 4, 5 of resist materials having different solvents. The holes 6 are drilled, and the board is rinsed in an acid solution to remove the burr. The entire surface of the assembly, including the walls of holes 6, is given a coating 7 of a sensitizing agent, such as palladium chloride, after which resist layer 5, together with the overlying sensitizing coating 7, is removed, leaving sensitizing material only on the hole-walls, to which is now applied a layer of electroless-Cu, followed if required by a further electroplated Cu layer. Finally, resist layer 4 is washed off, and Cu coating 3 is removed with nitric acid. In a modification, the metallized holes are formed in a board having Cu or Ni coatings on both surfaces, the wiring pattern being formed at the end of the process by a photo-etch technique utilizing either the first resist coating 4, or a fresh photo-resist layer; the hole walls are previously coated with Au.
Patent GB-807260-A (GB)
Title: 10-[2-(1-pyrrolidyl) alkyl] phenothiazine-n, 5-dioxides
Inventor: SHEPHERD DOUGLAS ALFRED
IPC: C07D417/06
Filed: 1957-03-19
Abstract: The invention comprises compounds of the general formula <FORM:0807260/IV (b)/1> wherein X is hydrogen or a lower alkyl radical (one to eight carbon atoms inclusive) and Y is hydrogen or a methyl radical, and their acid addition salts, and the preparation thereof by reacting the corresponding 10-[2-(1-pyrrolidyl)-alkyl]-phenothiazine with a peroxidizing agent and, if desired, converting the free base into its acid addition salt.  Peroxidizing agents which may be used are hydrogen peroxide, perbenzoic, perphthalic, peracetic, persulphuric and permonosulphuric (Caro's) acids, benzoyl peroxide or ozone.  In examples, 10-[2-(1-pyrrolidyl)-ethyl]-phenothiazine free base is reacted with 30 per cent aqueous hydrogen peroxide to form the corresponding N,5-dioxide free base and this is converted into the corresponding hydrochloride salt by hydrogen chloride.  Similarly are prepared 10-[2-(2,4-dimethylpyrrolidino)-propyl]-, 10-[2-(2,4-dimethylpyrrolidino)-ethyl]-, 10 - [2 - (2,5 - dimethylpyrrolidino) - propyl]-, 10 - [2 - (2,5 - dimethylpyrrolidino) - ethyl]-, and 10 - (2 - pyrrolidinopropyl) - phenothiazines and their hydrochloride salts.  In place of the hydrochloric acid there may be substituted appropriate acids to obtain the hydrobromide, hydroiodide, sulphate, phosphate, nitrate, acetate, benzoate, salicylate, glycolate, succinate, nicotinate, ascorbate, tartrate, maleate, malate and lactate. U.S.A. Specifications 2,483,998 and 2,483,999 are referred to.ALSO:Tablets, solutions for injection, and elixirs containing 10-[2-(1-pyrrolidyl)alkyl]-phenothiazines of the formula <FORM:0807260/VI/1> p  and their acid addition salts, wherein X is hydrogen or a lower alkyl radical (one to eight carbon atoms inclusive) and Y is hydrogen or a methyl radical, are disclosed.  The salts may be the hydrochloride, hydrobromide, hydroiodide, sulphate, phosphate, nitrate, acetate, benzoate, salicylate, glycolate, succinate, nicotinate, ascorbate, tartrate, maleate, malate and lactate. U.S.A. Specification 2,483,998 and 2,483,999 are referred to.
Patent GB-342585-A (GB)
Title: Improvements in machines for sorting or grading articles by weighing
IPC: B07C5/22
Filed: 1930-03-21
Abstract: 342,585. Sorting by weighing. HADDAN, R., 31, Bedford Street, Strand, London.-(Corning Glass Works; Walnut Street, Corning, New York, U.S.A.) March 21, 1930, No. 9079. [Class 143.] A machine for grading articles according to their weight comprises means for delivering unsorted articles to a plurality of scales set for progressively increasing weights, the scales being arranged to deliver articles which fail to tip the scales into grade compartments, and to deliver articles which tip the scales into guideways leading to the next scales. The articles, for example glass tubes T in an inclined magazine 35 are allowed by cam-operated stops 82, 90 to roll singly to the position T<3> where they are temporarily retained by a fixed stop 85 and by the periphery of a continuously-rotating discharger blade 67 mounted on a shaft 16. Continued rotation of the discharger blade liberates the tube which then rolls into the notched end 60 of a weighbeam 56. A cam blade 64 temporarily holds up the weighbeam during the deposition of the tube. If the weight of the tube is sufficient, the beam is depressed and a second discharger blade 68 on the shaft 16 brings a knifeedge projection 65 into contact with the upper surface of a wedge-shaped lug 69 on the beam thereby preventing the beam from rising whilst a radial portion of the discharge blade pushes the tube off the beam and down a guideway 45 leading to similar mechanism in connection with a second beam 57. If the tube fails to depress the beam 56 the projection 65 engages the lower surface of the lug 69 and holds up the beam so that the tube is pushed off into a grading compartment 41, These operations are repeated by the lower beams, and the heavier tubes are sorted into the lower compartments.
Patent GB-349688-A (GB)
Title: Improvements in electric condensers
IPC: H01G4/38
Filed: 1930-03-21
Abstract: 349,688. Condensers. DUBILIER CONDENSER CO. (1925), Ltd., Victoria Road, North Acton, London. - (Assignees of Dubilier, W.; 10, East 40th Street, New York, U.S.A.) March 21, 1930, No. 9090. Convention date, Nov. 16, 1929. [Class 38 (ii).] An electrical condenser assemblage comprises condenser units, each having a casing 7 provided with bracket or clamp members 17 and condenser sections 2 within the casing. The units are supported on tubular framing 21 by means of clamps 19. In the example shown an extension or housing 15 covers the terminals 9, 10, and when mounted, the extensions may form conduits for bus-bars. Each section may have an individual fuse 5.
Patent GB-643194-A (GB)
Title: Combination excavator and bulldozer assembly
IPC: E02F3/96
Filed: 1948-03-31
Abstract: 643,194. Earth excavators. THORNTON, A. A. (Koehring Co.). March 31, 1948, No. 9096. [Class 68 (i)] The push arms 9 of a bull-dozer assembly are pivotally secured to the chassis of an excavator of the drag line or clam shell type, the hoist and drag lines 5, 7 of which are detached from the scoop and reeved back over sheaves 18, 19 on the boom 23 to be secured to eyes 15 on the arms 9 so that the position of the blade can be regulated by hauling in on one or other of the cables. When it is desired to use the blade at the same time as the scoop, then it is supported from the boom by chains or cables instead of by the hoist and drag lines. Attachment of the blade to the push arms is by universal joints.
Patent GB-1041883-A (GB)
Title: An installation for the artificial cultivation of plants
IPC: A01G/
Filed: 1964-03-04
Abstract: 1,041,883. Apparatus for growing plants. O. RUTHNER. March 4, 1964 [March 7, 1963], No. 9162/64. Heading A1E. An installation for cultivation of plants comprises a tower greenhouse 1 within which plant carriers 19 are suspended from an endless travelling band 7 which passes over upper guide rollers 8, 9 and lower guide rollers 10-12, the rollers 10 and 12 being positioned such that the lower part of the band includes an inclined portion 7<SP>1</SP>. A container 17 supplied with nutrient solution from tank 14 is located below roller 10 at a level such that the carriers 19 dip into the solution, the side wall 20 of the container being extended to return liquid dripping from the carriers 19 to container 17. A support member 21 carries illuminating elements 22 and a fan 15 with heating elements 16 is provided. The roof 1<SP>1</SP> of the greenhouse may be raised or lowered for ventilation and the side walls are of glass or plastics. Reference has been directed by the Comptroller to Specification 984,404.
Patent GB-415506-A (GB)
Title: Improvements in or relating to lamp holders for electric lamps of tubular form
IPC: H01R33/02
Filed: 1933-03-27
Abstract: 415,506. Electric - lamp holders. GENERAL ELECTRIC CO., Ltd., QUANCE, F. G., and BUSSEY, S. R., Magnet House, Kingsway, London. March 27, 1933, No. 9171. [Class 39 (ii).] In a holder for an electric lamp of tubular form having laterally extending terminals, means for positioning the lamp and maintaining a lamp terminal pressed against a terminal 9, Figs. 1 and 2, of the holder comprises a metal strip 8 which passes beneath a body 1 of insulating material and is provided with a clip 17 adapted to engage its ends and pass over the lamp tube. As shown the strip 8 is located within a groove 7 formed in the bottom and inwardly sloping sides of the body 1, one end of the clip 17 being hinged to the strip 8 while the other end is hooked to engage in a slot 18 in the strip. The spring plunger 9 is connected by a metal strip to a terminal 10 located near to one of a pair of apertures 11 in the end wall of the body 1, thereby enabling terminals of the same polarity in two different holders to be connected together when the lamps are mounted end to end. The ends of the holders are extended to form flanges or walls 2 on either side of a lug provided with an aperture 4 whereby the holders are secured end to end by screws in a trough-shaped base through which conductors can be passed and protected by a sheet metal cover.
Patent GB-120526-A (GB)
Title: Improvements in the Construction of Reinforced Concrete Floors.
Inventor: BARRACLOUGH HORATIO LEONARD
IPC: E04B5/28
Filed: 1918-06-04
Abstract: 120,526. Barraclough, H. L. June 4, 1918. Floors of reinforced-concrete girders side by side; reinforced-concrete floors and beams.- A floor consists of inverted T-shaped reinforced-concrete beams A laid side by side, rods C passed through apertures in the webs, inverted pots nr vessels D, and a concrete filling between and above the pots, and if desired above the beams to form the floor surface. The upper part of the webs of the beams may increase in width towards the centre of the length as described in Specification 120,536,
Patent GB-702547-A (GB)
Title: Device for removing excess paint or the like from brushes
IPC: B44D3/12
Filed: 1951-04-20
Abstract: 702,547. Brush wipers for paint tins &c. WEBBER, D. H. July 18, 1952 [April 20, 1951], No. 9225/51. Class 66 A brush wiper for use with a paint tin or like container comprises a rod, wire, or bar having non- resilient means at its ends to engage the rim of the container mouth to support it in a position spanning the mouth below the level of the rim. The wiper is so dimensioned as to lie along a chord and not a diameter of the mouth and the supporting means are preferably non- resilient U-shaped extensions of the scraper rod. The U portions may lie in different planes to the scraper so as to lie along radii as they pass over the rim of the container mouth or the whole device may be formed in a single plane to facilitate its storage in the lid of the container, retaining lips or indentations being provided in the lid for this purpose. The scraper bar may be made in two overlapping parts 11 so as to be adjusted in length. The parts may be held together by a sleeve 6 where they overlap or each may have its end terminated in an eyelet formed at right angles to the length of the bar through which the other part passes, Figs. 6 and 7 (not shown).
Patent GB-116929-A (GB)
Title: Improvements in and relating to Trucks for Receiving the Waste Produced in Grinding Machines and similar Waste Products of other Machines.
IPC: B23Q11/00
Filed: 1917-06-28
Abstract: 116,929. Marks, E. C. R., (Norton Grinding Co.). June 28, 1917. Supplying abrading-materials and fluids.-The liquid and waste material from a grinding or other machine in which material is cut away from a work piece by a grinding-wheel or other tool is run into a wheeled truck or receptacle 10, Fig. 2, divided by a partition 11 into a settling-chamber 12 and a pumping-chamber 13. The liquid overflowing from the former runs into the latter and is pumped therefrom by a pump 22. The truck is positioned and supported by a projection 16, Fig. 6, and pin 17 engaging a flared recess 18 in a bracket on the machine frame. When the truck requires cleaning, it is removed from the machine and tilted to rest on the end 10<a>. The handle 30 is capable of longitudinal movement on the studs 15 of the wheels 14 and can be secured in position bv a spring stud engaging a recess in either of the brackets 36. One position is used for moving the truck and the other for dumping its contents. The pump is secured by bolts 26 engaging curved slots, so that it can be swung about the axis 24 out of the way to allow the truck to be removed.
Patent GB-482176-A (GB)
Title: Method and preparatory tube for constructing foundation piles
IPC: E02D5/38
Filed: 1937-04-01
Abstract: 482,176. Concrete piles. COMPAGNIE INTERNATIONALE DES PIEUX ARMES FRANKIGNOUL SOC. ANON. April 1, 1937, No. 9335. Convention date, April 1, 1936. [Class 68 (ii)] In a method of constructing concrete piles in the ground, a preparatory tube 1, provided at its lower end with an extension member 2 of greater internal diameter than that of the tube 1, is driven into the ground, a charge of concrete is introduced and compressed by means of a monkey 6, and is then driven out of the tube while the latter is withdrawn a predetermined distance. Successive charges of concrete are dealt with in the same way. Reinforcement 5 may be inserted before the concrete.
Patent GB-137971-A (GB)
Title: Pleasure wheel or pastime device
IPC: A63G27/00
Filed: 1919-04-12
Abstract: 137,971. Ogden, J. April 12, 1919. " Great " wheels.-The apparatus consists of a large circular framework A of angle-iron &c. mounted to be rotated by motor power on bearings b<1>, and containing several circular tracks d. Passenger cars e run on the tracks d and are weighted so as to remain upright while the frame A revolves. A platform is provided from which passengers can enter the cars e by doors g. The axle b is fitted with a brake drum. The whole device may be enclosed in a suitably painted fixed or moving casing.
Patent GB-116932-A (GB)
Title: Improvements in Water-cooled Grate-bars.
Inventor: MEURS-GERKEN PAUL LUCIEN
IPC: F23H3/02
Filed: 1917-06-29
Abstract: 116,932. Gerken, P. L. Meurs-. June 29,1917. Fire-bars and grates.-Water-cooled grate bars are made by first forming a solid bar and subsequently boring a water passage therethrough. Cast-iron bars may be formed with flanges b at their ends, shown in Fig. 1, to enable them to be bolted to water chambers d, or to other bars of similar construction. Two or more bars may be fcrmed cf one unit with a common flange, as shown in Fig. 3. Instead of connecting the bars to a water chamber, they may be connected together by pipe bands or elbows m with union joints as shown in Fig. 5, the bars being preferably formed in pairs.
Patent GB-574486-A (GB)
Title: Improvements in or relating to the production of amidines
Filed: 1941-11-04
Abstract: A therapeutically active compound, 2-hydroxy-4 : 41 - diamidinostilbene, is prepared either by treating 2-hydroxy-4 : 41-dicyanostilbene in solution or suspension in an anhydrous alcohol with dry HCl or dry HBr whereby the cyano groups are converted into imino-ether groups and treating the resulting compound with ammonia or by treating 2-hydroxy-4 : 41-dicyanostilbene with an alkali metal amide, and hydrolysing the alkali metal compound.  In an example 2-nitro-4 : 41-dicyanostilbene is prepared by heating 2-nitrotolunitrile and 4 - cyanobenzaldehyde with the addition of piperidine, reduced to 2-amino-4 : 41-dicyanostilbene which is diazotised and treated with acid to form 2-hydroxy-4 : 41-dicyanostilbene, which is converted to 2-hydroxy-4 : 41-diamidino stilbene dihydrochloride.  Specifications 510,097 and 549,634 are referred to.
Patent GB-1027122-A (GB)
Title: Improvements in and relating to the synchronising of electrical signals
Inventor: HOWORTH DOUGLAS
IPC: H04N5/06
Filed: 1964-03-06
Abstract: 1,027,122. Signal synchronization. BRITISH BROADCASTING CORPORATION. Jan. 26, 1965 [March 6, 1964], No. 9704/64. Heading H3A. Apparatus for synchronizing two signals, e.g. a television signal a and a second television signal b derived from signal a via circuits 11, 12 which introduce a delay of approximately one line period comprises an arrangement for deriving a signal which is a function of the error in synchronism and for controlling variable delay circuit 12 by means of the signal to reduce the error to zero. The signals a and b are applied, respectively, to sync. separators 14, 13 which supply line pulse signals to integrators 16, 15. The integrators generate, on receipt of a line pulse, sawtooth signals which are applied respectively to phase splitters 18, 17. Positive saw-tooth signals from phase splitter 17 are combined with negative saw-tooth signals from splitter 18 in adder 19 and opposite polarity signals are combined in adder 20. When the signals are not in synchronism the output from e.g. adder 19 is a waveform comprising a pulse of very low amplitude and long duration followed by an opposite polarity pulse of high amplitude and short duration, the polarity of the pulse is a function of the sense of the error and the duration of the high amplitude pulse is proportional to the amount of the error. Signals similar in form but of opposite polarity are obtained from adder 20. These error signals are applied respectively via rectifiers 22, 21 and low-pass filters 24, 23 to a balanced D.C. amplifier which supplies positive and negative control signals on lines 28, 29 to vary the delay introduced by circuit 12 and bring the two signals into synchronism. The apparatus may be used to synchronize the frequency of an oscillator with that of a reference signal by controlling the saw-tooth generators with pulse trains derived from the oscillator output signal and the reference signal respectively.