baber/WOPTO huggingface dataset:
Patent GB-305009-A (GB)
Title: Improvements in galvanic batteries
IPC: H01M4/76
Filed: 1928-04-30
Abstract: 305,009. Wolff, E. Jan. 28, 1928, [Convention date]. No Patent granted (Sealing fee not paid). Electrodes. - An electrode for a batter<y> employing an oxide of copper, nickel, lead, &c. as depolarizer consists of two perforated corrugated metal plates 1, 2 at right angles to one another, the plates being connected together by a frame 4 having bentup portions 6 for the attachment of terminals. The frame is strengthened bv horizontal and vertical rods which pass through holes 8 in the frame. The oxide 5 is carried between the plates 1, 2. The perforations in the plates are conical in shape, as shown in Fig. 5, or they may consist of flaps punched out from the metal.
Patent GB-258312-A (GB)
Title: Improvements in or relating to apparatus for operating and controlling the doors of railway or similar vehicles
IPC: E05F15/02
Filed: 1925-05-15
Abstract: 258,312. Peters & Co., Ltd., G. D., Hockley, H. R., and Palmer, B. W. May 15, 1925. Fastenings for railway-carriage doors.-In a system for operating and controlling the doors of railway and other vehicles which are propelled by electric power and comprising for the doors on each side of the vehicle two electromagnetic valve devices under the control of the conductor through switch devices, the bolts securing the doors A are not released until the speed of the car or train is reduced below a predetermined minimum. Fig. 1 shows the arrangement of the system as applied to a vehicle, and in Fig. 2 the wiring system is illustrated as applied to three coaches. The doors A are operated by the motors 6, each provided with a valve-puller 5 and valve chamber 9 supplied with compressed air from a reservoir 7 through pipes 3, 4, 8. Current from the positive 'supply wire 2 is supplied through an electric relay E to a line wire 25, from which current is supplied to electromagnetic valve devices D which control the supply of compressed air from the reservoir 7 through pipes 3<a>, 15 to the door locks 14. The device E comprises two coils 16, 17 with movable armatures connected to a rocking lever 18 and contact member 20, the arrangement being such that the contact is broken only when both coils are de-energized. One of the coils receives current from the current supplied to the propulsion motors of the vehicle, the other coil being energized by regenerative current when the vehicle is coasting, as in a similar arrangement described in Specification 254,347, [Class 65 (i), Door and gate operating- appliances &c.]. The pneumatically-operated bolts 14 keep the doors locked until the speed of the vehicle or train drops to a predetermined minimum, when both the coils of the relay Fare de-energized the circuit of the valve-device D is de-energized and the pipe 15 is put to exhaust.
Patent GB-377967-A (GB)
Title: Improvements in and relating to wireless transmitters and receivers
IPC: H01J25/68
Filed: 1931-04-30
Abstract: 377,967. Valve generating circuits. MACKENZIE, W. B., DRABBLE, J. C. W., and YEO, R. A., H.M. Signal School, Royal Naval Barracks, Portsmouth. April 30, 1931, No. 12760. [Class 40 (v).] In an ultra short wave oscillator in which the grid is maintained at a high positive potential, the anode is maintained at a potential negative with respect to the cathode solely by the utilization of a current set up in a resistance R connected between the anode and cathode. The resistance may be variable to vary the frequency of the generated oscillations. The potential to the grid may be applied between the grid and anode instead of as shown and the aerial system may be connected to the anode or to the grid or separate aerials may be used, one connected to each of these electrodes; The resistance R may be shunted by a condenser or chokes may be inserted in series with the high tension supply leads.
Patent GB-562681-A (GB)
Title: Improved means for paving unstable soil in the construction of road, runways or the like
IPC: E01C9/08
Filed: 1942-09-10
Abstract: 562,681. Roads; runways; floors &c. TRIGGS, W. W., (Carnegie-Illinois Steel Corporation). Sept. 10, 1942, No. 12785. Addition to 562,473. [Classes 20 (iv) and 107] The metallic plates of the parent Specification are modified by the provision inwardly of an edge thereof, and preferably of opposed edges, with a series of aligned spaced openings 15, and outwardly of said openings with a series of aligned spaced downwardly projecting lugs 13 adapted to extend through the openings 15 of an adjacent plate. Reinforcing grooves 5, 7, are provided in the plates. After assembly of the plates, they may be held against relative displacement by insertion in the openings 15 of clips 16, Fig. 6, or wedges.
Patent GB-300942-A (GB)
Title: Manufacture of mixed acid esters of cellulose or esters of cellulose ethers
IPC: C08B15/00
Filed: 1927-05-12
Abstract: 300,942. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). May 12, 1927. Cellulose esters and ether-esters, and processes for making filaments and films from.-Mixed esters of cellulose and esters of cellulose ethers are made by treating a cellulose ester or ether containing reactive hydroxyl groups such as commercial cellulose acetate or ethyl cellulose, swollen or dissolved in an organic solvent, with an inorganic acid chloride in the presence of an acid-binding agent, or with an organic acid chloride in the presence of an acid-binding agent other than pyridine, or with a simple or mixed anhydride, other than acetic anhydride, in the absence of a promoter of the reaction, or with an acid amide or acid ester. The use as starting material of nitrocellulose or of a cellulose ether soluble in allsali is excluded. Acid-binding agents for use with acid chlorides are organic bases, ammonia, inorganic oxides such as magnesia, and carbonates. By the use of inorganic acid chlorides radicles of silicic acid, phosphoric acid, phosphorous acid, sulphuric acid, antimonious acid, &c. may be introduced. In many cases the anhydride or acid amide serves both as the reagent and the swelling-agent or solvent. By the use of mixed acid anhydrides such as boro-acetic acid anhydride and lauric-myristic acid anhydride, there are obtained mixed esters of constant composition. The estertincation may be carried out without separation of the cellulose derivative used as the starting material, from its reaction mixture. In examples, a cellulose acetate-phosphite is obtained by mixing with an acetone solution of cellulose acetate, an acetone solution of phosphorous trichloride in this solvent; a solution of ethyl cellulose in xylene is mixed with silicon tetrachloride diluted with chloroform and pyridine, to produce an ethyl cellulose silicate; cellulose acetate is dissolved in molten stearic anhydride; ethyl cellulose is heated with myristic anhydride, solution of the ether gradually taking place; cellulose acetate swollen with pyridine, is heated with monophenylphosphate to produce a cellulose acetate-phosphate; ethyl cellulose is dissolved in molten benzamide; cotton is added to and heated with a mixture of xylene, pyridine and lauric chloride, and afterwards phosphorus oxychloride is added and the mixture is further heated, cellulose laurate-phosphate being finally obtained ; to the reaction mixture obtained in the production of ethyl cellulose is added a further quantity of caustic soda and a solution of phosphorus oxychloride in benzene, the final product being ethyl cellulose phosphate. The products obtained are suitable for the manufacture of lacquers, photographic films, coatings for films, and artificial threads. Specification 219,926 is referred to.
Patent GB-950308-A (GB)
Title: Improvements in or relating to conveying chains
IPC: B65G17/42
Filed: 1962-04-03
Abstract: 950,308. Conveyor Chains. SCREW CONVEYER CORPORATION April 3, 1962 [May 11, 1961], No. 12802/62. Heading B8A. The pivot pins 18 of a conveyer chain have parallel flats 21 at at least one end and the chain's outer link plates 16 have correspondingly shaped apertures, the pins being retained by circlips 30 fitted in grooves 28 in the pins. The inner link plates 10 may be cast integrally with connecting bushes in which the pins pivot, or separately formed bushes with ends flattened in the same way as the pins may be fitted into corresponding apertures in the inner link plates. Certain of the outer link plates are of modified form 17 and carry lugs 35 to which scrapers 38 may be attached to form a conveyer of the kind described in Specification 891,325.
Patent GB-528160-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/22
Filed: 1939-04-28
Abstract: 528,160. Motor mountings. ELECTROLUX, Ltd. April 28, 1939, No. 12816. Convention date, May 2, 1938. [Class 35] The motor or motorfan unit of a vacuum cleaner is supported within the casing by a number of levers pivoted on the unit and pressed outwardly by tensioning means against the casing. The motor unit is held at one end by a ring b with an interposed resilient ring and at the other end, levers d are pivoted on lugs c. One end of each lever is provided with a resilient abutment e of rubber &c. and the other ends are formed as hooks f engaged by a tensioning member g which may be a spring. By contracting the tensioning member g, the abutments e are caused to press against the vacuum cleaner casing a. The abutments e may be formed with inclined surfaces bearing upon inclined surfaces h inside the casing so that the motor unit is pressed against the ring b.
Patent GB-1106782-A (GB)
Title: Improvements in or relating to magnetic transducer systems
Inventor: CAMRAS MARVIN
IPC: G11B5/127
Filed: 1965-03-26
Abstract: 1,106,782. Recording and playback. IIT RESEARCH INSTITUTE. 26 March, 1965, No. 12988/63. Heading G5R. The output winding of a playback head is connected to a compensating circuit which tends to equalize the phase shifts produced in signal components of frequencies respectively below and above the resonance frequency of the winding. As shown, a magnetic core 13 carries two windings 27, 28 having different numbers of turns and different resonance frequencies. One winding 28 is used alone for recording, but the two windings are connected in series for playback. A magnetic head 10 comprises the magnetic core 13, having a first non-magnetic gap 23 therein, and a second core 14 having a pair of poles 14a, 14b confronting opposite sides of a part of the first core 13 to define second and third non-magnetic gaps 20, 21 between this part of the first core and the respective poles of the second core. An erase or bias field is applied by means of conductors 35, 45, Figs. 1 and 2, or 57, 57<SP>1</SP>, Fig. 6, located in grooves in the first core 13. The head 10 is energized to produce a composite video and synchronizing track 66 between two audio tracks 64, 65, Fig. 4, on a tape 11 which may accommodate a plurality of such combined tracks by virtue of the provision of manual or automatic means for reversing the direction of movement of the tape and stepping the head laterally (Figs. 14, 14A, 14B, 15, not shown). A grooved tape-supporting surface extends on either side of the active part of the head so that during recording or playback the ridges 879, Fig. 6, of this surface engage the tape only between the record tracks. The circuitry (Figs. 7, 10 or 11, and 12 or 13) includes means for detecting and counteracting the effects of flutter and drift. The high-frequency response of the head may be increased by the provision of a ferrite shunt 47, Fig. 1.
Patent GB-1483398-A (GB)
Title: Tetrapolymers pentapolymers and higher polymers suitable for use in lacquers and wavesetting lotions
IPC: A61K8/81
Filed: 1975-03-27
Abstract: 1483398 Hair lacquers and wavesetting lotions L'OREAL 27 March 1975 [1 April 1974] 13012/75 Heading ASB [Also in Divisions C3 and C4] Hair lacquers and wavesetting lotions contain a copolymer derived from a monomer mixture comprising:- (a) an unsaturated acid of the formula: in which n is 0 or 1 such that if n is 0, R = CH 3  and if n is 1, R= H, (b) a vinyl ester of the formula in which R" is CH 3  or C 3 H 5 , (c) at least one branched allyl or methallyl ester of the formula formula in which R' is H or CH 3 , R 1  is a linear or branched chain saturated hydrocarbon radical with up to 6 carbon atoms, and R 3  is CH 3  or -CH(CH 3 ) 2 , with the proviso that R 1  and R 2  together contain not more than 7 carbon atoms and (d) a monomer which is: (i) a vinyl ether of the formula  in which R 3  is a linear or branched alkyl radical with up to 12 carbon atoms (ii) a vinyl ester of the formula in which R 4  is a linear alkyl radical (C 7-11 ) or (iii) a linear allyl or methallyl ester of the formula  in which R' is H or CH 3  and R 5  is a linear alkyl radical (C 1-11 ). In the specific Examples compositions are disclosed in which the copolymer contains units derived from :- 1) crotonic acid, vinyl acetate, allyl dimethyl propionate and vinyl dodecanoate and which has been neutralised with 2-amino-2-methyl-propane-1, 3-diol, 2-amino-2-methyl-propan-1-ol, triethanolamine or isopropanolamine; 2) crotonic acid, vinyl acetate, allyl 2, 2-dimethylpentanoate and vinyl dodecanoate and which has been neutralised with 2-amino-2-methylpropane-1, 3-diol; 3) crotonic acid, vinyl acetate, allyl dimethyl propionate, and allyl dodecanoate and which has been neutralised with isopropanolamine; and 4) crotonic acid, vinyl propionate, methallyl dimethyl propionate and ethyl vinyl ether and which has been neutralised with diethanolamine. The compositions may be in the form of an aerosol, and also contain water, ethyl alcohol, isopropyl alcohol, and perfume.
Patent GB-403862-A (GB)
Title: Manufacture of vat-dyestuffs
IPC: C09B57/12
Filed: 1933-05-04
Abstract: The vat-dye mixtures of isomeric 1.4.5.8.-naphthoylene - diarylimidazoles obtainable according to Specifications 237,294, 265,232, and 265,964, [all in Class 2 (iii), Dyes &c.] are separated into their constituents by treating the mixture with a suitable metal chloride in the presence or absence of a suitable organic diluent, separating the metal chloride compounds of the isomerides by taking advantage of their different solubilities and reconverting these compounds into the dyestuffs.  Suitable metal chlorides are zinc chloride, aluminium chloride, tin tetrachloride, antimony tri-or penta-chloride, and these form addition compounds or complex compounds with the isomers which compounds have different solubilities in solvents such as glacial acetic acid or nitrobenzene; after separation the compounds are converted to the dyes by treatment with water or dilute mineral acids.  The separation of the isomeric mixtures derived by condensing 1.4.5.8. -naphthalene-tetracarboxylic acid with o-pheny-lenediamine, 1.2-diamino - 4.5 - dichlorbenzene and, 2.3 - diaminotoluene using aluminium chloride, tin tetrachloride and antimony trichloride respectively is described in Examples. Specifications, 353,124, 364,050, and 369,604 also are referred to.
Patent GB-457734-A (GB)
Title: Workmen's food and like cans or containers
IPC: B65D81/32
Filed: 1936-05-11
Abstract: 457,734. Workmen's cans &c. MORGAN, G., Claremont, and TOMLINSON, J., Northfield House, both in Askern, Doncaster. May 11, 1936, No. 13230. [Class 66] A workman's or like can comprises an annular liquid container A provided with an orifice F closed by a cork and an inner food &c. container B closed by a detachable lid E. Loops G for a carrying strap are provided on the outer container.
Patent GB-220702-A (GB)
Title: Improvements relating to twin cameras for two colour kinematograph projection
IPC: G03B33/00
Filed: 1923-05-17
Abstract: 220,702. Lang, A. B. D., and D. C. L. Syndicate, Ltd. May 17, 1923. Colour kinematography. -Twin lenses for kinematography are cut or ground flat on their inner sides and have an opaque screen 3 to divide the light cones between them and in contact with them. Specifications 102,280, 166,344, 174,674, and 210,823, are referred to.
Patent GB-822726-A (GB)
Title: A forming die, and its method of production
IPC: B29C33/10
Filed: 1956-04-30
Abstract: 822,726. Stamping dies. BUDD CO. April 30, 1956 [April 29, 1955], No. 13268/56. Drawings to Specification. Class 83 (4). A forming die comprises a wear-resisting layer presenting a working surface corresponding to the contours of a sheet metal stamping to be formed thereby, and a backing structurally connected with said layer and consisting of an aggregate of chunky, solid material and a solidified resin binder. The wear-resisting layer may be a resin-impregnated glass fibre laminate consisting of layers of glass cloth bonded by a thermoset epoxy resin, or a shell of metal which may be sprayed or electrodeposited. The wear-resisting layer is formed on the surface of a mould or form of plastic composition or plaster of Paris, made from the model, its reverse surface is covered with a spacing and heat-insulating layer consisting of layers of asbestos and of polyvinyl chloride film, the backing is built up against the surface of the spacing material and is allowed to harden, the wear-resisting layer and backing are separated, the spacing material is removed, and the wear-resisting layer and backing united by an adhesive. The backing is built up by pouring a mixture of epoxy resin and hardener on top of the spacing material, stamping crushed stone into the resin, and repeating until a sufficient thickness is provided. The last layer of the backing is covered with a heavy metal plate having U-shaped rods welded to it to form a mechanical connection with the backing. The backing may be built up around a number of copper tubes which communicate at one end with holes drilled in the wear-resisting facing, and at the other end emerge through openings in the heavy metal plate. The stone may be granite, basalt, or slag from iron or steel mills. Specification 715,950, [Group III], is referred to.
Patent GB-1021865-A (GB)
Title: Winching system
Inventor: PARKER ROLAND JAMES
IPC: B66D1/08
Filed: 1963-04-04
Abstract: 1,021,865. Winches; trimming apparatus. FREDERICK PARKER Ltd. April 3, 1964 [April 4, 1963], No. 13301/63. Headings B8B and B8E.  A winching system 6 for pulling in a shovel 5 of a concrete mixer 1 comprises a winch drum 22 driven through a freewheel device 23 from an hydraulic motor 12 which has its hydraulic supply controlled by a reversing valve 34 operable by a switch 9 on the shovel 5. The winch drum 22 is mounted outside of a casing 10, 11, 19 and on a shaft 20 driven through a worm and wheel 17, 18 from a shaft 15 normal thereto. The shaft 15 is driven through a flexible coupling 14 from the output shaft 13 of the hydraulic motor 12. The motor 12 is of the gear type in which the gears, one of which has the output shaft 13 attached thereto, may be driven in either direction by fluid supplied from a reservoir 37 by a constantly operating gear pump 33. The reversing valve 34 has a spool 38 actuated by a solenoid 39 against a spring 40, to cause a reverse rotation of the motor 12 which drives the winch drum 22. The solenoid is energized by closure of the remote switch 9. Upon de-energization of the solenoid, the spool is returned under the action of spring 40 and the motor 12 is driven forwardly, in which direction the winch drum 22 free wheels. A stub shaft 25 on the winch drum shaft 20 is subject to braking by resilient brake strips 27 loaded against the stub shaft by a spring 28 subjected to loading by a screwed nut. The electrical lead 41 from the switch 9 to the solenoid 39 passes over a jib supported pulley 43 with a loop passing around a loose pulley 44 to take up excess length of lead.
Patent GB-133728-A (GB)
IPC: A63H27/16
Abstract: 133,728. Rowe, R. F. Aug. 30, 1918. Toy flying-machines. - A toy biplane is constructed from blanks cut from sheet material, one blank forming the two planes and interplane struts, and another blank forming the fuselage and tail. Fig. 1 shows a blank for forming the planes, and Fig. 2 a blank for making the fuselage. The centre part a of the blank shown in Fig. 1 forms the upper plane, and the end parts b, c form the lower plane. The parts b, c are overlapped at the centre and secured by bending lugs e over shoulders f. The intermediate parts d are cut so that the edges d<1> may be bent over the central part d to form interplane struts at the wing-tips, as shown in Fig. 3. The blank shown in Fig. 2 is made to form the top h, sides i, j, and front k of the fuselage, and is cut at the rear to provide the tailplane o. Lugs i<1>, j' are folded over laps k<1> on the front end, and flaps i<2>. j<2> are folded inwards under the tail-plane. Flaps l are folded underneath to carry an axle m for wheels n, Fig. 3. The planes are attached to the fuselage by the engagement of lugs g, Fig. 1, with slots p, Fig. 2.
Patent GB-558485-A (GB)
Title: Improvements relating to floating coastal defence units
Inventor: ARTHUR PHILLIPS WILLIAM
IPC: B63B35/00
Filed: 1940-08-23
Abstract: 558,485. Floating coastal defence units. PHILLIPS, W. A. Aug. 23, 1942, No. 13406. [Classes 113 (i) and 113 (ii)] A floating coastal defence unit is provided with a flat, curved, or dome bottom 5 surrounded by a circular, polygonal, or like annular keel 7. The keel may be parallel sided or it may taper downwardly, it may form a downward continuation of, and be thicker than, the side wall 4 of the unit, and it may be provided with strengthening webs 8, 9. Through passages may be formed in the keel adjacent the bottom 5. The parts 4, 5, 7, 8, 9 are preferably constructed integrally of reinforced concrete, and the unit may be of stepped form, as shown, or approximate to that of a conventional buoy. In the latter form, the keel may be spaced from the wall of the unit and be connected thereto by the strengthening webs. Specification 558,455 is referred to.
Patent GB-580630-A (GB)
Title: Improvements relating to mixing machines
IPC: B28C5/18
Filed: 1944-07-13
Abstract: 580,630. Mixing-machines. MILLARS' MACHINERY CO., Ltd., and LEECH, L. A. July 13, 1944, No. 13431. [Class 86] In a mixing machine of the tilting drum type the drum 2, Fig. 1, is supported for rotation in a circular yoke 1 incorporating an annular track between flanges 4, 17, Fig. 3, with which circumferentially spaced rollers 15 carried by the drum cooperate. The drum is rotated by means of a driving shaft 9 and a pinion 12 which is enclosed within the yoke 1 and engages with the teeth 11 of a circular flange 10 on the drum. The outer edge of the flange 10 abuts against a number of thrust rollers, not shown, mounted in the wall 3 of the yoke 1. Tilting of the drum about trunnion bearings 7, 8 is effected by a handwheel 22 through the engagement of a pinion 19 with an internally toothed wheel 18 mounted on a trunnion 6.
Patent GB-1107078-A (GB)
Title: Recovery of acidic amino acids
IPC: C07C227/28
Filed: 1966-03-25
Abstract: Acidic amino acids such as aspartic and glutamic acids are recovered from aqueous acidic solutions thereof by contacting such solutions with a sulphonic acid type cation exchange resin in the salt form, whereby said amino acids are adsorbed in ionic form on to said resin and may be subsequently eluted therefrom by means of an alkaline solution. Ammonium, sodium, potassium or calcium salts of ion exchange resins are specified.  The process may be applied to a supernatant solution from microbiological fermentation which has been acidified with sulphuric or hydrochloric acid.  The adsorbate may be washed with water prior to elution.  Aqueous ammonia is specified as a suitable eluting agent.