baber/WOPTO huggingface dataset:
Patent GB-139043-A (GB)
Title: Improvements in hearing appliances
IPC: H04R25/04
Filed: 1919-03-26
Abstract: 139,043. Hooghiemstra, J. S., and Bureau voor Uitvinders. March 26 1919. Mouthpieces and earpieces; sets.-In a pocket telephone set for deaf persons, the transmitter and receiver are mounted on the battery casing, and the sound chamber of the receiver is connected to the ear by a flexible tube. The soundreceiver of the transmitter may be in the form of a grating placed at the top of or surrounding the microphone casing. In the arrangement shown in Fig. 2, the transmitter 8 or transmitters 8, 9 and the receiver 10 are mounted upon the battery casing 1 by means of a U-shaped bracket 4, and the sound chamber of the receiver is connected to the ear by a flexible tube 5. In the modification shown in Figs. 4 and 6, the front of the microphone 11 is flush with the battery casing 1, and the sound-receiver 12 is in the form of a grating and is placed at the top of the microphone casing. The set is held in the pocket by a spring clip 15, and a switch 17 is provided to control the telephone circuits. A rheostat may be provided to regulate the strength of the current.
Patent GB-690452-A (GB)
Title: Weight sensing attachment for cable anchors
IPC: G01G19/14
Filed: 1951-04-02
Abstract: 690,452. Load indicating means. MARTIN-DECKER CORPORATION. April 2, 1951 [Nov. 27, 1950], No. 7600/51. Class 68(i) [Also in Group XIX] To permit of the load on a hoist cable C being continuously recorded in a welldrilling rig, a cable anchor B, of the type in which a snubbing drum 11 may rotate about a shaft 10 on a support 7 and has passing several times therearound the cable C before said cable is secured to the support 7 by a clamp 12 positioned to one side of and below the axis of the drum, is secured to the upper of two plates 14, 15 that are pivotally interconnected by a pin 28, the lower plate 15 being rigidly secured to the derrick structure D. Connected by toggle joints between the other opposed ends of the plates is a piston-cylinder assembly 16, the cylinder 24 being connected to a fluid-actuated indicator 19. Variation in the loading of cable C causes the cable anchor B and plate 14 to rock with respect to plate 15 about the pivot pin 28 and a corresponding relative movement occurs between the piston 37 and the cylinder 34 so causing a variation in the indicator reading. Two interlocking U-shaped bolts 23, 24 limit the relative movement of the plate.
Patent GB-820300-A (GB)
Title: Cutter for secondary seal of a stoppered bottle
IPC: B65D41/62
Filed: 1958-03-10
Abstract: 820,300. Container closures, packaging. KRAVITZ, N. March 10, 1958, No. 7628/58. Classes 94(1) and 125(3). In a closure assembly a bottle with a flat face 12 has around a cork or stopper 16 a cutter 30 in the form of a flat ring 32 with radially extending tab 34 so as to be rotatable and an outer capsule or seal 50 of viscose, paper, metallic foil or the like is applied to the bottle so that tab 34 projects through an aperture 52, rotation of the cutter 30 by means of tab 34 causing the seal 50 to be severed. In a modification the seal 50 is not apertured but the tab 34 has a pointed outer end to penetrate the seal. In another modification, Fig. 9, the bottle neck 60 is threaded to receive a screwcap 64.
Patent GB-287070-A (GB)
Title: Method of and apparatus for mixing fluids or solids in proportionate quantities with fluids in flow
IPC: G05D11/00
Filed: 1928-03-12
Abstract: 287,070. Groeck, H., and Jordan, F. March 11, 1927, [Convention date]. Mixing fluids in flow.-Apparatus for mixing a definite proportion of one fluid, or a solid, with a second fluid in flow comprises a pump &c. supplying one fluid &c. and the driving of which is controlled electrically through a switch by the flow of a stream of the second fluid. In the form shown, the main stream, passing through a pipe a, rotates a vane wheel b which drives, through gearing r, d, a contact member g mounted on an insulating cylinder s. A second contact member i is mounted on a shaft k in gear with the shaft of the motor C which drives a pump l supplying the added fluid &c. Rotation of the vane wheel b rotates the cylinders s so that the contact g overtakes the contact ! i and starts the motor, which continues to rotate until the contact i, driven thereby, leaves the contact g. The apparatus is designed so that at maximum flow in the main stream the motor runs continuously. When the main stream decreases, the motor is operated intermittently as the contact g alternately overtakes, and is outrun by, the contact i; if the main stream stops the contacts open and the supply of added fluid ceases. The proportions of the added fluid may be altered by varying the capacity of the pump, or the ratio of the gearing e, f. The pump may be replaced by an elevator.
Patent GB-255817-A (GB)
Title: Improvements in or relating to steam power plants
IPC: F01K15/00
Filed: 1926-03-19
Abstract: 255,817. Siemens - Schuckertwerke Ges. July 21, 1925, [Convention date]. Addition to 247,186. Motor power plant.-In a critical pressure boiler plant in which the reduction to the useful working pressure is effected by an auxiliary turbine or other engine serving to drive the feed pump, as described in the parent Specification. and in which an electric counterbalancing machine is mechanically coupled to the auxiliary turbine as described in Specification 252,380, a synchronous electric machine is used as the counterbalancing machine.
Patent GB-1428140-A (GB)
Title: Laminating apparatus for making sheet moulding compounds
IPC: B29C70/50
Filed: 1973-07-16
Abstract: 1428140 Laminates GENERAL TIRE & RUBBER CO 16 July 1973 [7 Sept 1972] 7688/75 Divided out of 1428139 Heading B5N Laminating apparatus for making a sheet moulding compound comprises a horizontally arranged table support, means to feed continuous sheet 16b across the table, a vertically disposed doctor blade 22 in operative association with the table and supported by side wall members 33 whereby the blade, side wall members, sheet and table form a trough for containing a resin material 14 to be coated on to the moving sheet and the bottom edge of the blade doctors the coating, the blade having a plurality of orifices extending through an intermediate portion thereof and below the level of the resin, means for feeding a plurality of continuous fibres 12 through the resin and subsequently through the orifices to produce a plurality of substantially uniformly coated and formed bundles of fibres 12<SP>1</SP>, means, e.g. doctor blade 30, for coating a second continuous sheet 16a with the resin material 14 and means, e.g. rollers 38, for pressing together the sheets and sandwiching the coated bundles of fibres therebetween. Sheets 16a and 16b may be of polyethylene. The orifices in blade 22 each comprise a cylindrical portion and incoming tapered portion and are arranged in 4 parallel rows each horizontally off-set from adjacent rows. Rovings 12 may be of glass, sisal, hemp, asbestos, graphite, boron, metal, wool, cotton, polyester or nylon, and the resin which may contain a thickener, e.g. magnesium or calcium oxide, may be polyester, phenolic, epoxy, silicone, alkyd, acrylic or polyethylene. The tensile strength of the sheet moulding compound in a direction transverse to the orientation of the continuous rovings may be improved by diverting one or more of the continuous rovings to a chopping station located downstream from blade 22 and allowing the chopped roving to fall on to the bottom layer of resin and impregnated continuous rovings just before the top layer is combined therewith. A plurality of layers of sheet moulding compound oriented at angles to each other may bo pressed together.
Patent GB-557496-A (GB)
Title: Improvements in and relating to sockets for tubular electric lamps
IPC: H01R33/08
Filed: 1942-06-05
Abstract: 557,496. Lamp-holders. BRITISH THOMSONHOUSTON CO., Ltd. June 5, 1942, No. 7696. Convention date, June 6, 1941. [Class 38 (i)] A holder for tubular lamps having a cap carrya pair of contact pins 12 comprises a housing 13 having an opening 14 into which the pins 12 are passed through a slot 15, a guide 18 with a transverse slot 19 forming an annular gap into which the pins move on rotating the lamp. Contacts 20 housed in a recess in the rear of the holder cooperate with the pins 12 and each comprises a strip bent to a wide V shape 21 with one or both ends bent back at 22 to engage the wall of the housing. The contacts are separated by a partition 17 and are retained by a pair of semi-circular. plates 28 that close the back of the housing, the ends of the contacts being located in notches 23. Leads enter through gaps in the plates 28 and are bent over the edge of the contacts 20 and soldered thereto. Specification 526,713 is referred to.
Patent GB-1186828-A (GB)
Title: Stenter Clips
IPC: B65H23/022
Filed: 1968-02-16
Abstract: 1,186,828. Teetering-machines. WACKERCHEMIE G.m.b.H. 16 Feb., 1968 [21 Feb., 1967], No. 7713/68. Heading D1S. At least apart of a tenter clip which part comes into contact with the fabric being tentered consists of a cured organopolysiloxane resin containing 35 to 900% by weight, relative to the weight of the organopolysiloxane resin of a filler or reinforcing agent. It is sufficient if only the clip table or a cover of 0.5 to 3 mm. thickness Screwed or adhered to the clip table is made of the above composition. Also the clamping jaw of the clip may entirely or partly consist of the above composition. Suitable organopolysiloxane resins and curing agents therefor, fillers and reinforcing agents are specified.
Patent GB-510146-A (GB)
Title: Improvements in or relating to means for preventing condensation of moisture on shopwindows or the like or on goods contained therein
IPC: E06B7/12
Filed: 1939-03-10
Abstract: 510,146. Preventing condensation on windows. TETLOW, C. E. March 10, 1939, No. 7735. [Class 20 (iii)] Apparatus for preventing the condensation of moisture on shop windows or on goods displayed therein comprises a device a containing an electric air heater a<1> and an impeller, the latter serving to deliver air under pressure to a second air-heating device c. The latter may be of tubular form and is formed with slots or openings c<1> through which the current of air passes to impinge against the window or goods. The devices a and c may be permanently connected together or, as shown, the outlet pipe of the device a may be removably mounted in the inlet pipe of the device c. The heating of the air within the tube c is effected by means of one or a number of heating elements d. In modifications a tubular insulating sheath surrounds the tube c and the air is supplied either to the annular space between the tube and sheath, or to the interior of the tube.
Patent GB-760049-A (GB)
Title: New fatty acid derivatives
IPC: C11C3/00
Filed: 1954-03-17
Abstract: Polyvinyl chloride is plasticized with an ester derived from an alcohol, e.g. methyl, butyl, 2-ethyl butyl, 2-ethyl hexyl, or furfuryl alcohol, and an acyloxy derivative of a fatty acid produced by heating, under anhydrous conditions, paraformaldehyde with an unsaturated fatty acid having one or more double bonds and an aliphatic monocarboxylic acid of from 1 to 3 carbon atoms, which also acts as a solvent.ALSO:Acyloxy derivatives of fatty acids are produced by heating under anhydrous conditions paraformaldehyde and an unsaturated fatty acid having one or more double bonds in an acid solvent for the reactants comprising an aliphatic monocarboxylic acid of from 1 to 3 carbon atoms, whereby interaction between the paraformaldehyde, the unsaturated fatty acid and the aliphatic monocarboxylic acid occurs and the aliphatic monocarboxylic acid provides acyloxy groups in the product.  Suitable unsaturated acids are oleic, linoleic, linolenic and ricinolenic acid.  Formic acid, when used as a solvent, exerts a catalytic effect on the reaction. Other solvents, e.g. acetic acid, are not catalytic and an acidic catalyst, such as sulphuric acid, boron trifluoride, zinc chloride or stannic chloride, may be added to them in amounts ranging from 2 to 20 per cent by weight, preferably 5 to 8 per cent by weight.  The amount of paraformaldehyde used may vary between 1 and 3 mols., preferably 2.5 to 3 mols. per mol. of unsaturated fatty acid per double bond.  It is preferred to add the unsaturated fatty acid in a thin stream to a heated solution of the paraformaldehyde in the acid solvent.  The product may be isolated by immersing in water or by distilling off the solvent under reduced pressure.  The acyloxy products may be saponified with aqueous base and acidified to give free hydroxy acids.  The latter may be esterified and sulphated to give wetting and dispersing agents.  The salts of the hydroxy acids, such as the lithium salt, are valuable greases.  The acyloxy derivatives of fatty acids may also be esterified with alcohols, e.g. methyl, butyl, 2-ethyl butyl, 2-ethyl hexyl and furfuryl alcohols giving oils which are excellent plasticizers for polyvinylchloride resins.  According to examples, paraformaldehyde is reacted with (1) and (2) oleic acid, (5) ricinoleic acid and (6) linoleic acid, using glacial acetic acid as solvent and sulphuric acid as catalyst; (2) and (4) the product of (1) is saponified with potassium hydroxide and acidified to give the free hydroxy acid; (3) the product of (1) is esterified with 2-ethylhexanol; (7) paraformaldehyde is reacted with oleic acid using formic acid as solvent, giving a formyloxy derivative.
Patent GB-1516031-A (GB)
Title: Delay ignition transmission assembly
IPC: F42B3/16
Filed: 1977-02-02
Abstract: 1516031 Delay detonators for blasting IMPERIAL CHEMICAL INDUSTRIES Ltd 2 Feb 1977 [27 Feb 1976] 07811/76 Heading F3A A delay ignition transmission assembly for sequential delay blasting operations comprises a shockwave propagation tube 10 one end of which is in igniting relationship with a delay element 15 comprising a metal cylinder having at least three, preferably five, passages extending therein from end to end and filled with cores 17 of delay burning composition which is capable of self-sustained combustion in such a manner that the slag produced is retained in the passages. The propagation tube 10 is of usual construction and sealed 11 into one end of a casing 12 in which the delay element 15 is disposed between the adjacent end of the propagation tube 10 and an explosive charge 13, 14. Examples of delay element 15 as described above are given.
Patent GB-539006-A (GB)
Title: Process for recovery of metals from alloys and metallurgical residues
IPC: C25C1/12
Filed: 1940-05-01
Abstract: 539,006. Zinc, nickel, and iron oxides. WHITE, C. B. May 1. 1940. No. 7847. [Class 1 (iii)] [Also in Group XXXVI] Scrap material containing copper in major amount along with tin, lead, zinc, iron, nickel, antimony, silver and other metals, which material may be first reduced in a blast or smelting furnace to separate the metals from non-metallic constituents, is cast into plates which are made the anodes A in an electrolytic bath 1, alternating with cathodes C of thin sheet copper. The electrolyte, which consists of an acid solution of copper nitrate, is produced by passing a spray of nitric acid through copper scrap contained in a tower 6. and is heated before introduction into the bath. The copper, lead, iron, nickel, and most of the zinc dissolve in the electrolyte, a cathode deposite of from 99.97 to 99.99 per cent. pure copper being formed; the tin. antimony, silver and part of the zinc form a sludge which is removed from the anodes or from the bottom of the tank. When the lead concentration in the bath has become high enough the electrolyte is passed into and electrolysed in a second tank 2 which has copper cathodes C<SP>1</SP> and platinum, carbon or other insoluble anodes I on which the lead is deposited as peroxide; the spent electrolyte from this tank is pumped to the spray head 10 of a condenser 12. When a concentration of iron, nickel, zinc &c. likely to impede the process is formed in the bath 1 electrolyte is withdrawn into tank 3 which is also provided with copper cathodes and insoluble anodes, where copper and tin are removed from it electrolytically, the solution then being transferred to a still 14 and heated to break up the nitrates and leave zinc, nickel and iron oxides. The oxides of nitrogen from this still pass up the elements of the condenser 12 where they meet the descending electrolyte from tank 2 and are re-formed into nitric acid.
Patent GB-268348-A (GB)
Title: Improvements in or relating to electro-optical apparatus
IPC: G02F1/03
Filed: 1927-03-22
Abstract: 268,348. Telefunken Ges. f³r Drahtlose Telegraphie. March 23, 1926, [Convention date]. Television.-The undesirable effect of rotational dispersion in a crystalline body which is subject to electric oscillations and through which a beam of polarized light is passing is eliminated or compensated for by a second crystallne body, having the opposite effect on the rays of light, placed in the beam through the first body. The bodies may be a left-handed rotating quartz and a right-handed rotating quartz.
Patent GB-492600-A (GB)
Title: Improvements in and relating to the production of zein
IPC: C08L89/00
Filed: 1937-03-18
Abstract: Zein is extracted from maize proteins with an aqueous alcoholic solvent to which is added an alcohol-miscible organic solvent for maize oil and colouring matter, which is a non-solvent for zein, the resulting extract being treated with further auxiliary solvent, and the zein solution separated from the solvent layer containing oil and colour.  Lower aliphatic alcohols such as ethyl or methyl alcohol containing up to 20 per cent or more, preferably 7-8 per cent, of water may be used for the extraction, the auxiliary solvent being, e.g. toluol, benzol, xylol, chlorinated hydrocarbons, or aliphatic hydrocarbons.  One part of toluol to two of alcohol may be used without separation of the mixture into two phases.  The extraction is preferably effected below 70 DEG  C. with a final pH above 6 as in Specification 492,599.  The extract, preferably without concentration, is treated with further auxiliary solvent sufficient to cause separation into an alcoholic zein solution and an oil and colour solution layer which is removed.  The zein solution may be further concentrated and purified by repeating the treatment.  In an example, ground gluten meal is mixed with ethyl alcohol, toluol, and caustic soda solution at 60 DEG  C.  The extract which has a pH of 6,5, is decanted and extracted thrice with toluol.  Zein is recovered from the concentrated alcoholic solution which separates.
Patent GB-781109-A (GB)
Title: Improvements in or relating to electrodes for electric primary batteries
Inventor: SANDERSON ROGER WILLIAM WHALEY
IPC: H01M4/06
Filed: 1955-03-18
Abstract: 781,109. Batteries. GENERAL ELECTRIC CO., Ltd. March 19, 1956 [March 18, 1955], No. 7998/55. Class 53. A bipolar electrode comprising a zinc or other metal anode coated with a mixture of carbon and a plastic binder is made by first coating the zinc &c. with tin, silver, gold or other metal not affected by the binder and then applying the carbon mixture.
Patent GB-689608-A (GB)
Title: Improvements in the production of gamma-sulphonyl carboxylic acids
IPC: C07C317/44
Filed: 1951-04-09
Abstract: g -Sulphonyl carboxylic acids are made by reacting aliphatic g -lactones at elevated temperatures up to about 250 DEG  C. with salts of sulphinic acids, and acidifying the reaction product.  In examples, g -butyrolactone in excess is heated with (1) benzene sulphinic acid sodium salt; (2) p-toluene sulphinic acid sodium salt; (3) the mixture of sulphinic acid sodium salts obtained by reducing with zinc dust and hydrochloric acid and neutralizing with caustic soda the mixture of sulphochlorides obtained by the action of a mixture of sulphur dioxide and chlorine or a mixture of paraffins of boiling range 250-320 DEG  C.  The sodium salts first obtained are converted to the acids by treatment with dilute hydrochloric acid. The calcium, zinc, or potassium salts of sulphinic acids may also be used, and other sulphinic acids referred to are the halogen or alkoxy substitution products of benzene sulphinic acid, and methyl-, ethyl-, butyl-, decyl-, or cycloalkyl-sulphinic acids.
Patent GB-290410-A (GB)
Title: Improvements relating to safes and strong rooms
IPC: E05D7/14
Filed: 1927-03-25
Abstract: 290,410. Chatwood Safe Co., Ltd., and Bruckshaw, H. S. March 25, 1927. Completing closing of door.-The door a of a safe or strong room is pivotally mounted by socket members d with hinge pins that are out of alignment with a a shaft f rotatably mounted on the door frame, the hinge pins and shaft having crank-like connections h, and means are provided for imparting a. rotary movement to the shaft so as to press the door into close contact with its seating. The shaft f carries a projecting pin i which engages a recess that is eccentrically-disposed to the axis of the shaft l. When the door is swung into its closed position, rotation of the shaft l by the worm gearing k causes the shaft f to move angularly, whereby the cranks h press the pivot pins towards the door frame. On the free edge of the door the end of the shaft l carries a boss n with an eccentrically-disposed pin # engaging a bearing p on the door frame; this provides for a uniform closure pressure on the door.
Patent GB-232575-A (GB)
IPC: B60L7/04
Filed: 1925-03-28
Abstract: 232,575. Forges et Ateliers de Constructions Electriques de Jeumont. April 17, 1924, [Convention date]. Electric braking.-Where a vehicle is fitted with more than two series-wound direct current motors, such as 1, 2, 3, 4, 5, and 6, electric braking is obtained by having two of the motors e.g. 1, 2 arranged for crossed excitation or equipotential connection in the known manner, the field windings E1, E4, and E3 on the one hand and the fields E2, E5 and E6 on the other being in series and the armature windings I3, I4, I5 and I6 being connected in parallel through suitable resistances R3, R4, R5 and R6.