baber/WOPTO huggingface dataset:
Patent GB-721998-A (GB)
Title: Improvements relating to fluorescent materials
Inventor: DOHERTY MARY TERESA
IPC: C09K11/08
Filed: 1951-02-09
Abstract: 721,998. Luminescent materials. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd. Feb. 8, 1952 [Feb. 9, 1951]. No. 3248/51. Class 39 (1). A method of preparing a fluorescent material having a matrix including magnesium germanate which fluoresces red between 6000Š and 7000A when excited by radiation of 2537Š and 3650A in a low pressure mercury vapour discharge lamp consists in firing the constituents of the matrix and the activator, for example manganese sulphate, at a temperature between 950‹C. and 1200‹C. preferably 1150‹C., for between 30 minutes and 3 hours, preferably 2 hours, in a furnace into which a stream of dry oxygen is passed. The matrix can include zirconium oxide and/or titanium oxide. 4MgO. GeO 2  : 0.2 per cent Mn and 10MgO.GeO 2  : 1.96 per cent TiO 2  : 0.1 per cent Mn, in which the titanium may be replaced wholly or partly by zirconium, are referred to. Specification 721,993 is referred to.
Patent GB-215717-A (GB)
Title: Improvements in internal combustion engines
IPC: F01L1/12
Filed: 1924-02-08
Abstract: 215,717. Renault, L. May 7, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Valve gear. - The overhead cam shaft 6 is mounted in bearings 14, 14<1> carried by a casing 7 which is supported from the crank casing 1, independently of the cylinders, by means of end casings 8, 9 and, where necessary, by one or more intermediate pedestals 10. The drive for the cam shaft is mounted in the casing 8.
Patent GB-396118-A (GB)
Title: Improvements in mechanism or apparatus for removing the india rubber treads from the outer covers of pneumatic tyres
IPC: B29B17/02
Filed: 1932-02-05
Abstract: 396,118. Chucks. BAIRSTOW, H., 42, Devonshire Street, and SMITH, R., 3, East Avenue, both in Keighley, Yorkshire. Dec. 5, 1932, Nos. 3411 and 9705. [Class 83 (iii).] In apparatus for removing the india-rubber from the outer covers of pneumatic tyres, a shaft 5, Fig. 2, carries a work-holder 6 consisting of an annular member having radial ribs 6a, Fig. 4, between which slide radial arms 7 secured to further arms 7a, the latter being formed with slots at their inner ends engaging wedges 8 mounted on a hub 8b, Fig. 2, sliding on the shaft 5. The wedges are formed with grooves engaging pins in the slots in the arms 7a. The hub 8b is caused to slide by means of a nut 10 rotated by hand-levers 10a and working on a threaded part of the shaft 5. By this means the wedges 8 are caused to project or retract the arms 7, 7a, Fig. 4. The arms 7 carry at their outer ends hollow members 9 shaped externally to engage the inner surface of the tyre-cover.
Patent GB-197028-A (GB)
Title: Signal systems for telephones
IPC: H04M9/00
Filed: 1922-02-07
Abstract: 197,028. McKenna, T., (Dictograph Products Corporation). Feb. 7, 1922. Direct-call systems.-The calling circuit includes the receiver at the calling station and a relay at the called station which connects a buzzer in parallel with itself, so that a telltale signal is heard in the receiver at the calling station. The invention is applied to an intercommunication system with master stations and minor stations, the calling of a minor station being indicated at a master station in this manner. Fig. 2 shows the circuits necessary for communication between a master station B and a minor station Y. Depression of the calling key 4 closes a circuit through the receiver 2 or a loud speaker 1, a calling lamp 19 and a relay 17, which upon operation brings in a buzzer 16, causing fluctuations in the calling circuit. The operation of a switch 21 opens the calling circuit, and establishes talking circuits. The relay 17 is common to the calling circuits of all the master stations in parallel, and a calling key is provided for each minor station. Fig. 5 shows a signalling system in which upon energization of the relay 75 by the depression of the key 73, the buzzer circuit acts inductively to produce fluctuations in the calling circuit.
Patent GB-1204462-A (GB)
Title: Improvements in or relating to the packaging of perishable products
IPC: B65D77/22
Filed: 1969-01-22
Abstract: 1,204,462. Bags; packaging. GOGLIO LUIGI MILANO S.p.A. 22 Jan., 1969 [23 Jan., 1968], No. 3559/69. Hdadings B8C and B8K. A bag for coffee or the like, which is vacuum packed but which gives off a gas, has a one-way valve for relieving the pressure in the bag when it exceeds a predetermined value. The bag comprises an inner ply 1 of thermoplastic material and an outer ply of paper formed into a tube by bonding along a flap which is bent back against the tube and bonded thereto to lie flat against the tube. Gussets are formed in the sides of the tube. A one-way valve is bonded to the ply 1 and has a rubber diaphragm 7 biased to close an aperture 6 by a cover 8 which is secured to the body 5 of the valve. When an excessive pressure is generated inside the bag it lifts the diaphragm and escapes to atmosphere via an aperture 10 in the cover.
Patent GB-295605-A (GB)
Title: Bactericidal and therapeutic agents and methods of producing same
IPC: C07C43/20
Filed: 1927-02-08
Abstract: 295,605. French, R. W., and Holmes, W. C. Feb. 8, 1927. Phenols; acridine, azine, azo, triarylmethane, oxazine, pyridine, xanthene, and sulphuretted dyes.-Addition products, which are of use as bactericidal and therapeutic agents or biological stains, are made by treating salts of basic dyes with phenolic bodies; the latter form addition compounds with, and do not replace the acid radicals of, the dye salts. Salts of basic dyes of the azo, thiazole, ketonimide, triphenylraethane, diplenylnaphtlylmethane, xanthene, acridine, azine, oxazine, thiazine, and pyridine groups, including their acyl derivatives, or leuco compounds may be employed, the following being specified : Bismarck brown R, Thioflavine T. Auramine' O, Brilliant green, rosaniline, Methyl violet, acriflavine, Benzyl violet, Rhodamine B, Safranine T, New blue DA, Thionine and Pinachrome. The phenolic compounds may be of the benzene, naphthalene, anthracene, pyridine or quinoline series, but must not contain other acid or saltforming groups in addition to the hydroxyl groups; phenol, cresol, resorcinol, pyrocatechol, hydroquinone, guaiacol, phloroglucinol and pyrogallol are specified, The products may be obtained by direct fusion of the ingredients or by mixing aqueous or other solutions. In examples, Crystal violet. (hydrochloride) is mixed with two molecular proportions of resorcin or hydroquinone and the mixture dissolved in water, and Methylene blue (hydrochloride) is fused with one molecular proportion of resorcin.
Patent GB-339189-A (GB)
Title: Improvements relating to castors
IPC: B60B33/00
Filed: 1930-02-03
Abstract: 339,189. Owen, H. A. W. Feb. 3, 1930. Castors.-A castor is fitted with a clip attachment for the bottom rim e of a bucket or tub &c., the width of the clip being greater than the offset of the axis of the castor bowl b on each side of the vertical axis of the castor pintle c to overcome any tendencv for detachment of the clip by tilting under load. The clip can be made with integral or separate inner and outer tongues d, f.
Patent GB-1224607-A (GB)
Title: Ring guard and ring assembly
Inventor: BOENING JOHN HAROLD
IPC: A44C9/02
Filed: 1969-01-22
Abstract: 1,224,607. Finger rings. J. H. BOENING. 22 Jan., 1969, No. 3591/69. Heading A3H. A retaining device which enables a finger ring to more snugly fit a finger comprises a ring receiving member 4 having two flanges 5, 6 spaced by a web 7, a clamping member 9 having two flanges 10, 11, the flange 10 fitting within the flange 5, the two members 4, 9 being separably held together so as to encompass a ring 2 by a screw 16 received through a hole in the web 7 and a nut 15 on the flange 11. The flange 10 may be provided with portions 14 which may be broken off so that the clamping member 9 fits snugly into the receiving member 4 as shown in Fig. 3. In an alternative, Figs. 5-7 (not shown) the flange 6 is replaced by a small tab (6b) and a similar tab (11<SP>1</SP>) is provided on the flange (11b), these tabs then being folded about the ring (2c). By having flanges 5 and 6 of greater axial width, the retaining device may accommodate two rings, Figs 4, 8, 12 (not shown). As shown, the flanges 5, 6, 10 are arcuate, the flanges 5 and 10 being of greater radius than that of the flange 6, and in alternatives the flanges 5, 6 and 10 may have the same radius or the flanges 5 and 10 may be straight.
Patent GB-617870-A (GB)
Title: Electric transducers
IPC: H03H2/00
Filed: 1945-02-13
Abstract: 617,870. Impedance networks; coupling circuits. PATELHOLD PATENTVERWERTUNGS- & ELEKTROHOLDING AKT.-GES. Feb. 13, 1945, No. 3611. Convention date, Feb. 25, 1944. [Class 40 (viii)] [Also in Group XL (c)] A transmission line for impedance-transformation or phase-delay comprises a pair of coaxial coils with distributed capacity and inductance and sufficient spacing to prevent flash-over. Several such pairs with combined shunt and series connections may be used. Thus, two solenoids may be wound in the same direction and mounted inside and outside an insulating cylindrical former, Fig. 1 (not shown). Alternatively, a pair of coaxial flat coils may be used, Figs. 2a, 2b (not shown). The pair of coils is equivalent to an artificial line Ao, Fig. 4, for currents circulating through the terminals 1, 2, but would act as a choke for currents flowing through both legs of the line in parallel, whose inductance may therefore be represented by an inductance B and centre taps 5, 6, or, alternatively, by an impedance shunted across half or the whole of the coil 1, 2, the terminals 2, 6 being earthed, Fig. 5 (not shown). For impedance-matching purposes, two such pairs S1 of coils may be connected in series to the input terminals 1, 2, Fig. 6 (not shown), and Fig. 7, and such a pair may be in cascade with a series-parallel-connected set of three pairs S2, Fig. 7. Sets of any number of coils may be similarly arranged. Such a system may be used for matching a push-pull power amplifier to a feeder, Fig. 8 (not shown), or between a modulation-amplifier and a push-pull modulating valve, Fig. 11 (not shown). A pair of coils may be iron-cored, Fig. 9 (not shown), or two pairs may be coaxially mounted so that the four coils lie one within the other, Fig. 10 (not shown). An unbalanced low-frequency amplifier V3, V4, Fig. 11, may be coupled, through a coil S of the kind described, to a balanced modulator stage VI, V2. In constructional modifications, to compensate for the inequality in diameter the inner coil may have more turns than the outer, or be made of thinner wire; or for resistance-matching purposes the pitch of the helices may increase from one end to the other, or the spacing between the coils may vary, or the thickness of the wire; or unevenly distributed capacity may be shunted between the coils. The coils and magnetic circuit may be screened.
Patent GB-228942-A (GB)
Title: Improvements in or relating to speed reduction mechanisms
IPC: F16H25/06
Filed: 1925-02-09
Abstract: 228,942. Soprounoff, T. Feb. 9, 1924, [Convention date]. Cam mechanism.-In reduction or multiplying gearing, for gearing together aligned shafts, oppositely directed eccentrics A<1>, A<2> secured to one shaft A carry on ball bearings loose rings It adapted to engage rollers D', D<2> eccentrically mounted on spindles M carried in a loose disc and in a plate integral with the other shaft. The rollers D<1>, D<2> are respectively co-planar with the eccentrics A', A<2>, and bear against outer rings B' carried on ball bearings within a stationary casing F eccentric to the shafts. The speed of the shaft A is twice that of the other shaft. The eccentrics A<1>, A<2> may be secured in register on the shaft A, the ring B<1> engaging the rollers D<1> being independent of and oppositely directed to that engaging the rollers D<2>. Fig. 11 shows a modification in which the shaft A drives a single eccentric A<1> bearing within a loose plate Q in which engage the rollers D connected as before by eccentric spindles M to the plate G on the second shaft C. The rollers D bear also on stationary eccentric plates B. In a modified form of the apparatus shown in Fig. 1, the rollers D<1>, D<2> are extended to be co-planar with both eccentrics and engage exteriorly with an approximately elliptical outer track formed by the intersection of two eccentric rings. Fig. 8 shows a modification in which three eccentrics A<1> on the shaft A engage six rollers, as in Fig. 1, but in which the rollers engage exteriorly with a track formed by the intersection of three eccentric cylinders. In the form, shown in Fig. 13, three intersecting cylinders B are employed carried in a loose disc Q, as in Fig. 11, the speed of the shaft A being four times that of shaft C in the constructions shown in Figs. 11 and 13. The rings B may form the driving-member, so that when one shaft is held stationary the other is driven. The Specification as open to inspection under Sect. 91 (3) (a), states that the curves of the rings B may be other than circular. This subjectmatter does not appear in the Specification as accepted.
Patent GB-863911-A (GB)
Title: Improvements in belt conveyors
Inventor: UJIHARA YOSHIO
IPC: B65G17/02
Filed: 1959-02-02
Abstract: 863,911. Endless belt conveyers. KABUSHIKI KAISHA HITACHI SEISAKUSHO. Feb. 2, 1959, No. 3631/59. Class 78 (1). In a belt conveyer, the belt 1 is driven by frictional contact with a series of endless driving belts 7, 71, 7<SP>11</SP> having respective driving drums 3, 4, 5 which are driven by an endless cable 11 successively looped around pulleys 13, 14, 15 respectively associated with the pulleys 3, 4, 5. The driving belts 7, 71, 7<SP>11</SP> are caused to drive the lower run of the belt 1 in addition to the upper run by snubbing rollers 25 associated with each of the driving drums 3, 4, 5 to urge the belt 1 into frictional contact with an arcuate portion of each driving belt where the latter passes around its respective driving drum. Each of the driving belts is tensioned by a weight 10, and further weights 9, 19 are provided respectively to tension the belt 1 and the cable 11. The latter is driven by a pair of driving pulleys 16, 17. The working run of belt 11 may be troughed by sets of idler rollers, Fig. 3, the driving belts 7, 71 and 7<SP>11</SP> being narrower than the belt 1 and arranged centrally of its width.
Patent GB-661868-A (GB)
Title: Improvements in the method of manufacture of reservoirs for reservoir writing instruments
Inventor: ROSIN PAUL OTTO
IPC: B29C49/00
Filed: 1948-02-09
Abstract: 661,868. Moulding tubular ink reservoirs. CIA URUGUAYA DE FORMENTO INDUSTRIAL, SOC. ANON. Jan. 7, 1949 [Feb. 9, 1948], No. 3673/48. Divided out of Complete Specification of 651,481. Class 87 (ii) A reservoir for a ball-point pen a; described in Specifications 651,481 and 651,509, [both in Group XV], is made by placing a tube of material, i.e. a synthetic resin such as celluose aceto-butyrate, in a die which fits the tube over portions of its length but has at least one enlarged intermediate portion, and expanding the tube within the enlargement. As shown the die 5 comprises two similar parts 5a, 5b hinged together at 6 and having semi-circular grooves 7a, 7b which fit the tube when the parts 5a, 5b are folded into face contact, and enlargements 8a, 8b. The tube is closed at one end and hot fluid under pressure admitted at the other end to render the tube plastic and expand it within the parts 8a, 8b. After setting and removal from the die, the tube is severed between the enlargements.
Patent GB-175182-A (GB)
Title: Improvements in jets for single-type composing and casting machines
IPC: B41B5/06
Filed: 1921-01-31
Abstract: 175,182. Bullen, A. G., and Jenkinson, R. L. Jan. 31, 1921. Metal pots for singletype composing and casting machines. The nezzle of the metal pot is provided with a detachable and replaceable inside tube in order to avoid the effects of choking. The detachable tube f is secured inside the nozzle a by means of a set-screw d. In order to prevent the type metal from soldering the tube to the nozzle, the tube is treated with graphite &c.
Patent GB-699830-A (GB)
Title: Improvements in magnetic electron lenses
Inventor: PAGE RICHARD STOCKBRIDGE
IPC: H01J37/153
Filed: 1951-02-15
Abstract: 699,830. Cathode-ray tubes. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Jan. 11, 1952 [Feb. 15, 1951], No. 3718/51. Class 39(i) A magnetic lens for electron microscopes and diffraction cameras is formed by one end cheek 1 of the winding bobbin 2 which is sealed to the envelope and is drilled with radial holes which extend into a non-magnetic spacer 4 between the pole pieces 5, 7 but do not penetrate the vacuum space, the field between the pole pieces being adjusted by the screwed axial rods 9 at least the inner ends of which are formed of soft iron. Eight rods symmetrically arranged may be provided.
Patent GB-1130275-A (GB)
Title: Diacylamino-dihalogeno-1,4-benzoquinones and a process for their manufacture
IPC: C07D307/68
Filed: 1967-01-25
Abstract: 1,130,275. Diacylamino - dihalo - 1,4 - hydroquinones and benzoquinones. CIBA Ltd. 25 Jan., 1967 [4 Feb., 1966], No. 3742/67. Heading C2C. 2,5 - Diacylamino - 3,6 - dihalo - hydroquinones are prepared by treating a 2,5- diamino - 3,6 - dihalo - hydroquinone with an acylating agent so that depending on the amount of acylating agent used, the desired 2,5-diacylamino compound is obtained directly or a tri- or tetra-acyl derivative is obtained and is hydrolysed to yield the 2,5-diacylamino compound. Preferably the starting materials are 2,5 - diamino - 3,6 - dichloro hydroquinones. Suitable acylating agents are aliphatic, cycloaliphatic and araliphatic carboxylic acid chlorides and anhydrides, aliphatic and aromatic sulphonic acid chlorides, chlorocarbonic acids and halogeno-triazines. If desired the 2,5- diamino-3,6-dihalo hydroquinone starting material may be first diacylated with an aliphatic acid derivative and the 2,5-dialkanoylamino-3,6- dihalogeno-hydroquinone so obtained and then diacylated with an aromatic acid derivative to yield the tetra-acylated derivative which on partial hydrolysis yields the 2,5-diacylamino derivative. The hydrolysis of the tri- or tetraacylamino compounds may be carried out by treatment with an alkali or an inorganic acid. The 2,5 diacylamino - 3,6 - dihalo - hydroquinones may be oxidized to give the corresponding 2,5 - diacylamino - 3,6 - dihalo - 1,4- benzoquinones. The starting 2,5-diamino-3,6- dihalo- 1 ,4-hydroquinones may be obtained by the reduction of the corresponding benzoquinones. Examples are given of the preparation of 2,5-diacy]amino-3,6-dihalohydroquinones in which the halo radicals @ chlorine and the acyl groups are (a) benzoyl, (b) 2-, 3- or 4 chlorobenzoyl, (c) 2-, 3- or 4-nitrobenzoyl, (d) 2-thiophene carbonyl, (e) 2-furan-carbonyl, (f) o-, m- and p-toluyl, (g) 2-methyl-benzthiazole carbonyl, and (h) nicotinoyl. The compounds corresponding to (a), (e), (f), (g) and (h) are converted to the corresponding benzoquinones by oxidation.
Patent GB-742246-A (GB)
Title: Improvements in air propulsion
IPC: F24F7/013
Filed: 1952-02-13
Abstract: 742,246. Ventilating rooms. DAVIES, L. G. Feb. 6, 1953 [Feb. 13, 1952 ; April 25, 1952], Nos. 3762 /52 and 10426/52. Class 137. [Also in Group XXVI] Unit apparatus for mounting in an opening e.g. in the wall of a room to provide for the delivery of air to, and the extraction of air from, the room, comprises a housing 1 which is divided into upper and lower compartments by a partition 2 which carries an impeller 2 and its driving motor 14, the impellor extending into both compartments to draw vitiated air into the upper compartment from the room through a louvred opening 4 and exhaust it to the outside atmosphere through a louvred outlet 5, and to draw in fresh air through a louvred opening 6 into the lower compartment and discharge it through a louvred opening 7 into the room. The impellor and motor 14 may be mounted on a rotatable partition 2 so that the direction of the two streams of air can be varied. If desired, the impellor can be adjusted so that all of the air is either directed into the room, or extracted therefrom. The partition may be arranged on either side of the centre line of the housing ; it may also be arranged vertically. In a modifica. tion the housing is cylindrical and the openings 4-7 are protected by wire mesh, the louvres being omitted. The casing may be rotatably mounted on trunnions so that both air streams can be arranged to act together as inlet or extractor streams. In these arrangements also the partition and the impellor may be revoluble within the casing, or be provided with a vertical partition. In a further modification the housing is spherical and has four sector shaped openings, the partition 2 being rotatably mounted and provided with a tab which projects through a slot in the casing for manually controlling the position of the partition. The tab may be replaced by a geared or cable-operated remote control mechanism. With a spherical casing the impeller blades may take the form of a semispherical fan rotating in close proximity to the inner face of the casing, the partition being slotted around approximately half of its periphery to permit the impeller to rotate.
Patent GB-118988-A (GB)
Title: Improvements in or relating to Machines for Beating Gold Leaf.
Inventor: VINCENT ANTONIO
IPC: B21J7/12
Filed: 1918-03-04
Abstract: 118,988. Vincent, A. March 4, 1918. Planishing and beating.-A machine for beating gold leaf comprises a power-operated hammer provided with springs for absorbing the shock &c. of the hammer. As shown in Figs. 1 and 2, the hammer lever 30 is pivoted to a bracket 26 on which is also pivoted a pair of yokes 23. The lever is fitted with cross-arms 40, 41 working on rods 46, 47 carried by the yokes, and springs are interposed to cushion the blow. The yokes 23 are connected to rods 11, 12 provided with cross-arms 13, 14 sliding on a pivoted rod 8 and operated by cams 6 on a shaft 3. The hammer lever is formed in two parts, 33 made of metal and 34 made of wood.
Patent GB-204637-A (GB)
Title: Improvements in inks
IPC: C09D11/16
Filed: 1923-02-08
Abstract: 204,637. Hunt, M. J. Feb. 8, 1923. Ink.-Writing ink consists of soluble Prussian blue, phenol, distilled or rain water, and an auxiliary colouring agent, such as nigrosine for a blue-black ink and Chinese blue for a blue ink.
Patent GB-501562-A (GB)
Title: Improvements in or relating to devices for filling accumulator or other containers with liquid
IPC: H01M50/627
Filed: 1938-02-08
Abstract: 501,562. Filling accumulators; indicating liquid levels. BEDDOW, V. J. Feb. 8, 1938, No. 3865. [Classes 116 and 123 (i)] A device suitable for filling accumulators on vehicles to the desired level comprises a tank A for distilled water or electrolyte mounted on a wheeled trolley B, connected by a pipe D to a filling plug or support F. The plug F carries an adjustable terminal F<1> extending to about the. end of the tube F2, which is adapted to be closed by a rubber-faced valve member H<2> controlled by a finger-operated spring pressed member H<3>. The tube F<2> and terminal F<1> are connected by leads G to an indicator L and battery L<1>. The plug is placed in position in the filling aperture and the valve held depressed until the rising liquid completes the circuit of the indicator L, when the valve is released to cut off the liquid supply. The indicator L may be a pointer, red lamp, or audible signal. The valve may be provided 'with an electrically operated trip which causes it to close when the circuit is completed, or the indicator may be mounted on the plug.