baber/WOPTO huggingface dataset:
Patent GB-994818-A (GB)
Title: Improvements in or relating to fluid control valves
IPC: F15B1/027
Filed: 1963-03-27
Abstract: 994,818. Hydraulic apparatus. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINEN-UND ARMATURENFABRIK KOMM. GES]. March 27, 1963 [April 4, 1962], No. 12106/63. Heading FIP. In a fluid-pressure control system a pump, not shown, connected to a pipe 17 charges via a valve 1 and a check valve 22 a pressure accumulator 24 connected to a load system having a multi-way valve 25, the valve 1 comprises a casing having a piston valve 2 slidable therein and defining therewith a first chamber 5 connected by a pipe 26 to the accumulator 24 and a second chamber 6 containing a compression spring 7, the arrangement being such that the accumulator pressure is operative to displace the piston valve to the left whereby the pump supply is by-passed through a pipe 20 leading to a tank. A branch pipe 18 connected to the supply pipe 17 communicates the pump pressure to a passage 12 to act on the end face 19 of a plunger 11 integral with the piston valve 2, and the accumulator pressure is communicated to the chamber 5 through the pipe 26, a check valve 27 and a restriction 8 to act on the face 28 of the piston 2. As the charging proceeds the pressure in the chamber 5 and the passage 12 rises and because of the difference in area of the faces 19 and 28 the piston is displaced to the left until the groove 4 is uncovered whereby the pressure in the chamber 12 collapses and the piston valve snaps fully open by-passing the pump supply. When the pressure in the accumulator 24 falls a piston 29 having a tappet 30 is urged by an adjustable spring 31 to open the check valve 27 thereby allowing the piston valve 2 to return to the position shown. In a modification the pressure is communicated to the chamber 12 through passages drilled in the piston valve 2. In another embodiment the check valve 27 is a shouldered plunger having an axial bore for a poppet valve which is opened by the tappet.
Patent GB-365441-A (GB)
Title: Apparatus for delivering cigarettes from a continuous rod cigarette-making machine
IPC: A24C5/32
Filed: 1931-04-24
Abstract: 365,441. Cigarette-making machines. UNIVERSELLE CIGARETTEN-MASCHINENFABRIK J. C. MœLLER & CO., 48, Zwickauerstrasse, Dresden, Germany. April 24, 1931, No. 12173. Convention date. May 3, 1930. [Class 130.] Cigarettes from a continuous-rod machine are delivered in two rows by means of a pair of grooved rotary discs 1, 2 mounted eccentrically, so that the cigarettes are gripped between the discs at a point which moves to and fro between the two axes of rotation 1<1>, 2<1>. The discs deliver cigarettes alternately upon two belts 10, 11 travelling more slowly than the cigarette and leading to a transverse delivery belt 13 on which the cigarettes are laid in two rows G<1>, G<2>.
Patent GB-301271-A (GB)
Title: Collapsible wood crate or box
IPC: B65D6/16
Filed: 1928-04-26
Abstract: 301,271. Corin, B. J. April 26, 1928. Folding boxes and crates.-A box or crate in which the ends, sides and lid may be folded flat on to the bottom comprises ends B, Figs. 1 and 2, hinged to the bottom A by interengaging staples b, sides C hinged to the bottom by oval-shaped links a<1> engaging staples fixed in the bottom and sides and a lid D hinged to one of the sides C bv oval-shaped links a engaging staples c fixed in the side and lid; the sides have rabetted vertical end cleats d, Fig. 4, which are engaged by cleats e on the vertical edges of the ends when the box or crate is erected for filling.
Patent GB-353422-A (GB)
Title: Manufacture of new vat dyes
IPC: C09B49/12
Filed: 1930-04-17
Abstract: Anthraquinone vat dyes, dyeing in green shades, are obtained by the interaction of a hydroxylated anthranol derived from alizarine with a tetra-halogenothiophen, either simultaneously with, or subsequent to, alkylation; in the latter case the alkylation must be partial only, so that a free hydroxyl group is present.  The reaction is effected in the presence of a solvent or diluent, such as trichlorbenzene or naphthalene, and an acid-binding agent may be added if desired.  The products may be halogenated to produce further vat dyes.  In examples, (1) alizarine is reduced to the anthranol with zinc dust and ammonia, and the product heated with commercial trichlorbenzene, containing tetrachlorthiophen, sodium carbonate, and dimethylsulphate, (2) the anthranol obtained from alizarine is heated with tetrachlorthiophen, naphthalene, dimethylsulphate and sodium carbonate, and (3) 4-hydroxy-3-methoxyanthranol is heated with tetrachlorthiophen or tetrabromthiophen in naphthalene.  The same product is obtained in all the examples, the whole of the halogen being eliminated.
Patent GB-663916-A (GB)
Title: Improvements in or relating to cooling apparatus
IPC: F28F9/22
Filed: 1948-05-04
Abstract: 663,916. Refrigerating. MALONE, J. F. J., and MALONE, R. April 8, 1949 [May 4, 1948], No. 12252/48. Class 29 In a closed non-condensing refrigerating system comprising a compressor-expander unit 100, an air-cooled cooler 60 for compressed gas, a cooler 97 cooled by expanded gas and a cold gas refrigerator 86 the tubes 88 of which are supplied with expanded gas from the unit 100 for cooling the air in a chamber 92; the gas, which may be air or helium, is compressed and expanded in the apparatus described in Specification 637,429, [Group XXVI].
Patent GB-276053-A (GB)
Title: Improvements in and relating to apparatus for toasting, grilling, drying and like purposes
IPC: A47J37/06
Filed: 1926-05-14
Abstract: 276,053. Cussons, G. W, May 14, 7926. Garment racks and stands. - An appliance for toasting, grilling, drying, and like purposes, comprise a base 7, an upright 6, a clamping-member 9, 10 slidable on the upright and carrying one or more links 13; 15 to the end of which a bearing 16 for a rotary fork or like member is adjustably clamped by a screw 23. The base 7 is extended at 8 to render the device more stable and to support a, receptacle for drippings. The end of the rod 6 is screwed and is preferably tapered or spiked so that, when detached from the base, it may be stuck into the ground. The upright 6 may be hinged at 6<a>, in which case the link 13 may be pivoted directly on the upright 6. The rotary fork member comprises a spindle 17 passing through the bearing 16 and having a milled head 18 and prong members 25. A spring 21 is interposed between the head 16 and the bearing 16 to retard the turning of the fork. A stop 20 limits vertical movement. Instead of a single rotary member, a number of such members may be mounted in a bar substituted for the bearing 16. The fork may have side prongs 26, as shown in Fig. 4, the bread being impaled either at its edges or in a flat side. The dovetail portion 24 is received in a recess in the end of the spindle 17. The links 13, 15 may either or both be of telescopic or lazy tongs formation and the upright 6 may be telescopic or collapsable.
Patent GB-289480-A (GB)
Title: Improvements in gasfilled electric incandescent lamps
IPC: H01K1/50
Filed: 1928-04-27
Abstract: 289,480. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen). April 28, 1927, [Convention date]. Addition to 260,916. Repairing; residual gases; caps. - In high-intensity lamps for projection purposes &c. as described in the parent Specification, wherein the bulb h is adapted to be rinsed continuously by inert gases during use and is placed on or removably secured to a support, a for the leading-in wires c, d and the filament g, means are provided for renewing the filament without removing the bulb from the support. This is made in halves a<1>, a<2> separated bv insulation a<3> and bound together by rings a<4> and provided with terminals for the supply leads, and the bulb is held in contact with the support by springs anchored to a band encircling the neck of the bulb. Gas enters the bulb at the top of the hollow leading-in wire d and leaves by an aperture r in the hollow wire c, the wires being mounted on the members a', a<2>. The filament g is hung loosely from hooks s fixed to the wires c, d. A spare filament g<1> having suspension hooks s<1> is supported in a cup t' mounted on a rod t slidable in an insulated gland in the support a, and by raising and turning the rod the spare filament can be attached to the hooks s after the broken filament has been removed therefrom by projections t<2> on the cup t'. An insulating disc v and a guard v<2> respectively protect the members a<1>, a<2> and the spare filament from falling pieces of the filament g.
Patent GB-131982-A (GB)
Title: Process for the Production of Aromatic Nitro-compounds.
IPC: C07C205/06
Filed: 1918-07-31
Abstract: 131,982. Gros & Bouchardy, F., and Perruche, L. J. J. Sept. 24, 1917, [Convention date]. Nitro compounds.-Aromatic compounds are nitrated by passing oxygen or ozonized air, or air under pressure, into a well-cooled mixture of the compound with liquid nitrogen peroxide and traces of water. The product may be worked up by distilling off the excess nitrogen peroxide and separating the nitro body from nitric acid, or the mixture of nitro body and nitric acid may be heated with sulphuric acid to give polynitro bodies. The body treated may be dissolved in an inert solvent, e.g. carbon tetrachloride. Examples are given of the nitration of benzene and anisol.
Patent GB-295347-A (GB)
Title: Improvements relating to illuminated signals
IPC: F21V5/00
Filed: 1927-05-10
Abstract: 295,347. Tomlinson, A. V., (Union Switch & Signal Co.). May 10, 1927. Lantern shutters. -A signal lamp having a doublet of two echelon lenses 2, 3 for projecting a parallel beam of light, is fitted with a screen 7 adapted to prevent phantom indications, the screen being composed of a corrugated strip of relatively thin material, such as brass, wound into a spiral with an interposed flat strip between each layer, the several turns of the spiral being axially displaced from one another so as to form a stepped structure. A central aperture in the screen 7 is fitted with a short auxiliary screen of similar construction but with plane faces, and with a prismatic lens 11 adapted to provide an auxiliary indication adjacent the signal. The lens 11 is non-rotatably clipped in a ring 19 which, together with the screen 10, is soldered to the screen 7. The screen 7 is clipped to a channelsection ring 17 and is preferably arranged between the lens 3 and an outer cover glass 6 which is held up against an L-section ring 14 by means of an outer ring 15. The whole assembly is mounted in any desired angular position by means of bolts 18 passing through the rings and screwing into a framework 13. Specification 275,925 is referred to.
Patent GB-1431132-A (GB)
Title: Process for the production of hydroquinones
IPC: C07C245/08
Filed: 1974-03-20
Abstract: 1431132 Hydroquinones FUJI PHOTO FILM CO Ltd 20 March 1974 [22 March 1973] 12487/74 Heading C2C [Also in Division C4] Hydroquinones are produced by reducing a quinone with an N,N-disubstituted hydroxylamine, optionally in the presence of a solvent. The quinone may be benzoquinone or naphthoquinone and may carry from 1 to 4 substituents selected from alkyl, aryl, alkoxy, acyloxy, oxaacyloxy, acylamido and halogen. Examples of starting quinones are 3-(2<SP>1</SP>-benzofuranyl)-3- oxo - 2 - [4<SP>11</SP> - (2<SP>111</SP> - quinolylethyl)phenylhydrazono]propionitrile; 1-phenyl-3-hexylcarbamoyl - 4 - [41 - (2<SP>11</SP> - quinonylethyl)phenylhydrazono] - 5 - pyrazolone; 3 - (2<SP>1 </SP>- furanyl)- 3 - oxo - 2 - [4<SP>11</SP> - (quinonylmethyl - carbamoyl)- phenyl - hydrazono] - propionitrile; p - tolylp - benzoquinone; benzamidomethyl - p - benzoquinone; and 1-phenyl-5-quinonylthiotetrazole.
Patent GB-1327568-A (GB)
Title: Latch for vehicle doors
IPC: E05B65/32
Filed: 1972-03-17
Abstract: 1327568 Latches for vehicle doors ATWOOD VACUUM MACHINE CO 17 March 1972 [5 Nov 1971] 12495/72 Heading E2A  A latch comprises a support, i.e. a plastics case 21, first and second latching rotors 13, 14 mounted on the support to turn about spaced parallel axes 26, 27 from unlatching positions to fully latching positions, each of the rotors having first and second legs 19, 20 defining a throat 17 in which a striker 15 is received and retained by the legs when the rotors are in their fully latching positions, a pawl 33, pivotally mounted on the support, a first detent 66 located on and movable with the pawl and engageable with the free end of the first leg 19 of the rotor 13 to hold the latter in its fully latching position, and a second detent 70 on the pawl and movable in unison with the detent 66 into engagement with the second rotor 14 to hold the latter in its fully latching position. As shown, when the rotor 13 is turned from an unlatching position to a secondary latching position thereof, the leg 20 of the rotor is first engaged by the detent 66 on the spring-loaded pawl 33 and cams the pawl about the pin 34, then as the inner edge of the leg 20 moves past the detent the spring 43 biasses the pawl downwardly so that the detent engages the inner edge of the leg 20 as seen in Fig. 6. Continued turning of the rotor 13 upon complete closure of the vehicle door causes the leg 19 of the rotor to cam the pawl until the detent 66 hooks on to the shoulder 77, Fig. 5, to hold the rotor in fully latched position. When the rotor 14 is in the secondary latching position thereof a lug 74 of the detent 70 engages against a shoulder 75 on the rotor; when the rotor is in the fully latched position the lug engages a shoulder 76 on the rotor. The pawl is tripped to unlatch the door from the outside by a contactor 37, (Figs. 4 and 5) having a slot 41 which receives a finger of the pawl when the contactor is pivoted by an outside actuator such as a push button. A locking lever operated by a button-actuated lever 53 from inside or from outside the door by a key-actuated lever 55, has a lug 51 which overlies and engages the contactor to prevent the latter swinging and tripping the pawl 33; the lever 46 may also be operated by a lever 57 adapted to be turned by a remote actuator. The rotors are axially offset axially from one another and lie in side-by-side, planes.
Patent GB-455646-A (GB)
Title: Improvements in locking devices for securing an arm or like member to a cylindrical support
IPC: B23Q1/30
Filed: 1935-04-26
Abstract: 455,646. Clamping-devices for radialarms of drilling-machines and for like members. ASQUITH, Ltd., W., Highroad Well Works, and HOYLE, G. H., 34, Claypits Lane, Pellon, both in Halifax, Yorkshire. April 26, 1935, No. 12522. [Class 83 (iii)] [See also Group XXV] A locking device for securing a socket portion on a cylindrical support or column such as the arm of a radial drilling-machine comprises a ring that is slidably keyed on the column and means for securing the socket portion to such ring to lock it against rotational movement. The ring A, Fig. 2, is secured against axial movement relative to the rotatable and vertically movable sleeve member C by cap bolts D. A groove E in the ring provides a flange F which is gripped between the split jaws G, G<1> of a clamping block G<2> by an eccentric L, pull-bolt K and compression sleeve J to lock the sleeve against rotation. A similar ring A<1> may be housed within a socket at the base of the sleeve member, Fig. 3, and a handle S arranged to operate a clamp O for preventing rotation of the sleeve ; a clamp U for preventing vertical movement and, operating simultaneously with the latter, a switch Y for cutting-out the feed mechanism for the vertical motion may also be included.
Patent GB-662677-A (GB)
Title: Phase inverter system
IPC: H03F3/32
Filed: 1949-05-11
Abstract: 662,677. Valve amplifying circuits. RADIO CORPORATION OF AMERICA. May 11, 1949 [May 29, 1948], No. 12579/49. Class 40 (vi). In an amplifier with a single-side input circuit and a push-pull output circuit, a resistor is connected between one side of the output circuit and the power supply of such value that the hum voltages in the output circuit cancel out. As shown, part of the output of amplifier T<SP>1</SP> is applied over potentiometer Rg<SP>1</SP>, Ro to the input of phase inverter T<SP>2</SP>, the output of which appears across a resistor Rg2. The H.T. supplies of valves T<SP>1</SP>, T<SP>2</SP> are fed through resistors RL<SP>1</SP>, RL2, respectively, which are so proportioned that the hum voltages appearing across resistors Rg<SP>1</SP>, Rg<SP>2</SP> balance out. In a modification, Fig. 3, part of the hum voltage appearing at the anode of a phase splitter T 5  is fed to the cathode over a resistor 59 and blocking condenser 57 so as to balance out the excess hum voltage which appears at the anode side of the output circuit because that side of the output circuit has a higher impedance than the cathode side of the output circuit.
Patent GB-312464-A (GB)
Title: Improvements in or relating to cords, ropes, cables and the like, and buoyant articles made therewith
IPC: D07B1/20
Filed: 1928-04-30
Abstract: 312,464. Hoos, J. C., and Soc. Belge du Caoutchouc Mousse. April 30, 1928. Rafts.-Rafts are formed wholly or in part of ropes, cords, &c. having cores 1 of froth rubber or other material having air chambers 2.
Patent GB-1503092-A (GB)
Title: Process and apparatus for producing thermoplastic resin films having reduced thickness unevenness
IPC: B29C48/86
Filed: 1976-03-30
Abstract: 1503092 Electrostatic holding devices TEIJIN Ltd 30 March 1976 [1 April 1975] 12795/76 Heading H1P [Also in Division B5] Molten resin is extruded from a die lip 3 through a manifold 2 in a die 1 and quenched and solidified as a film 4 pinned electrostatically to a cooling drum 5 by subjection to a corona discharge from a charged electrode 8 provided between the drum 5 and the die 1. The electrode is shielded by a means 9 or 9<SP>1</SP> which may be attached to the extrusion surface 10 of the die or may be disposed as shown at 9<SP>1</SP>. The material of the shield may be a conducting metal or when it is in contact or very close to the electrode, a non-conductor or a combination of a non-conductor and conductor may be used. In example, of the extrusion of polyesters the following shielding means were used, a 2mm steel plate bonded to the surface 10; a 3 mm. Cu-wire coated with polytiticfluoroethylene attached to the die 1 and earthed, and a polytiticfluoroethylene sheet disposed 7 mm. from the electrode and parallel to the surface 10.
Patent GB-271244-A (GB)
Title: Improvements relating to protective devices or bumpers for motor road vehicles
IPC: B60R19/28
Filed: 1926-05-19
Abstract: 271,244. Rotax (Motor Accessories), Ltd., and Booth, E. R. May 19, 1926. Collision-guards.-A bumper-bar for a motor road vehicle comprises a two-part front strip a, a, each part being formed at the outer end with an integral bowed portion b, the free end of which is connected to the front strip by a slidable connection d. The end of each front strip a is provided with a sliding clamp c and the bowed portion b of each strip is connected through a sliding clamp g to a bracket e extending from the vehicle.
Patent GB-219123-A (GB)
Title: Improvements in or relating to circular brushes and to machines or apparatus for producing same
IPC: A46B13/00
Filed: 1923-05-14
Abstract: 219,123. Bradshaw, L. May 14, 1923. Bristles, fixing; brush-making machines.-In a circular brush comprising brush material 1, Fig. 1, arranged radially and united at the inner ends by adhesive material and clamped between annular discs by wire staples 5 passing transversely through the discs, the staples are arranged to overlap each other as shown. More than one circular series of staples may be employed. To insert the staples a wire-stapling machine of known type may be employed in conjunction with means for positioning the brush comprising a spindle 6, Figs. 3 and 5, mounted in bearings in a plate 8 adjustably secured to the bed 9 of the stapling machine. The spindle carries a hub 7 with pins 25 for engagement with the inner surface of the annular brush. The plate 8 is provided with bosses 13, 14 and is fastened' by screws 15 to the bed 9. A rectangular slot 16 in the bed 9 to receive the boss 13 and clearance holes 17 for the screws 15 permit adjustment of the plate 8 with respect to the stapling plunger 10. The brush may be rotated intermittently, to bring it into successive positions to receive the staples, by means of a ratchet wheel 20 fixed to the spindle 6 and adapted to be engaged by a spring-pressed pawl 19 on manipulation of a handlever 18. The movement of the lever is limited bv a fixed stop 22 and an adjusting-screw 23.
Patent GB-744237-A (GB)
Title: Cyclopentanophenanthrene compounds and process for the production thereof
IPC: C07J5/00
Filed: 1952-05-21
Abstract: The invention comprises: (a) 3b  : 17a -dihydroxyallopregnane-11 : 20-dione; (b) the preparation thereof by a combination of the following steps (or the last one or more of them): (i) selectively reducing allopregnane-3 : 11 : 20-trione with hydrogen in the presence of Raney nickel catalyst to 3b -hydroxyallopregnane-11 : 20-dione, (ii) esterifying this with a fatty acid esterifying agent containing not more than 6 carbon atoms in the acyl group, (iii) treating the resulting ester with a fatty acid anhydride containing not more than 6 carbon atoms in the acyl group, in the presence of an aromatic sulphonic acid, to form the corresponding triacylate of D 11,17-allopregnadiene-3b  : 11 : 20-triol, and (iv) treating this with an aromatic peracid followed by saponification; (c) treatment of (a) with bromine to produce its 21-bromo derivative; (d) treatment of the product of (c) with sodium iodide and potassium acetate to produce 3b  : 17a -dihydroxy-21-acetoxyallopregnane-11 : 20-dione; (e) selective oxidation of the product of (d) with N-bromoacetamide in the presence of pyridine to 17a -hydroxy-21-acetoxyallopregnane-3 : 11 : 20-trione.  In an example, step (i) is effected in a 1 : 1 mixture of ethanol and dioxane, step (ii) with acetic (or propionic) anhydride and pyridine, step (iii) with acetic anhydride in the presence of p-toluenesulphonic acid, step (iv) with perbenzoic acid in chloroform followed by methanolic caustic soda, process (c) with a solution of bromine in chloroform, and process (d) by refluxing in acetone.  Specification 735,429 is referred to.  Allopregnane-3 : 11 : 20-trione is prepared by shaking D 4 - pregnane - 3 : 11 : 20 - trione (11-ketoprogesterone) in an organic solvent (e.g. ethyl acetate) with hydrogen in the presence of a previously reduced 10 per cent palladiumcharcoal catalyst.
Patent GB-994105-A (GB)
Title: Electric immersion heaters
Inventor: LEE HUBERT
IPC: H05B3/82
Filed: 1964-03-26
Abstract: 994,105. Immersion heaters. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 26, 1964, No. 12843/64. Drawings to Specification. Heading H5H. To prevent scale formation on an immersion heater, e.g. for a washing machine or kettle, a plurality of loosely fitting rings or the like are arranged on the element so as to be capable of movement under the action of the heated water.