baber/WOPTO huggingface dataset:
Patent GB-194324-A (GB)
Title: Mercury vapour ejector or vacuum-producing apparatus
IPC: F04F9/00
Filed: 1923-03-06
Abstract: 194,324. Date Laboratoriums-und Industrie-Bedarf Ges. March 6, 1922, [Convention date]. Aspirating - apparatus, ejector.-Ejectors for air or other gases of the Langmuir mercury-vapour type are modified to obtain greater efficiency to prevent clogging by condensed mercury in the annular air or gas space surrounding the mercury-vapour nozzle, and to divert or lead away electric high tension discharges caused by condensation of mercury - vapour on the high-vacuum side of the appliance. This is effected chiefly by making the annular space around the mercury-vapour nozzle of increasing size downwards, and otherwise by selecting the forms and shapes of the parts. Mercury heated in a bulb 1, to which when condensed it returns by a pipe 6, passes as vapour by insulated pipe 2 to a downward tube 3 above a jet-nozzle 4 of contacting and expanding form, discharges into a pear-shaped conduit 5 having a connection 11 to the preliminaryvacuum pump and another 7 to the vessel to be exhausted, and is surrounded by the usual cooling-jacket 8 of cylindrical form. At the upper end the conduit 5 has a constriction 61 bringing it close to the downwards expanding part of the jet nozzle, and below this point it is of conical form, with a greater angle than the case of the nozzle, so that the annular space between the two parts expands downwardly. It is stated that the surface tension and weight of mercury would cause any film thereof condensed within the annular space to tear, the mercury running down in the form of drops. This form is for producing medium vacua. Specifications 108,590 and 162,642 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following : For high vacua the form adopted has the cooling vessel in the centre surrounded by a downwardly converging conical member communicating with the preliminary pump and with the vessel to be exhausted by a chamber that has an annular, spherical, outwardly expanding part at the top or base end of the cone and coacts with a similarly-shaped chamber constituting the mercuryvapour jet-nozzle immediately outside it. The discharge tube for the cooling-water is continued at its upper end into an upwardly extending finger through which passes a metal wire into the space communicating with the vessel to be exhausted, whereby high tension discharges are conducted to earch via the cooling-water system. This subject-matter does not appear in the Specification as accepted.
Patent GB-1417571-A (GB)
Title: Self-adhesive bituminous composition
IPC: C09J195/00
Filed: 1972-02-11
Abstract: 1417571 Adhesive bituminous coatings RUBEROID Ltd 30 Oct 1972 [11 Feb 1972] 6531/72 Heading B2E [Also in Division C3] A non-metal substrate is coated with a self-adhesive bituminous composition comprising a mixture of (i) one or more bitumens which are tacky at 20‹C and (ii) a brittle and/or waxy polymer present in an amount which is from 0.1 to 10% by weight based on the one or more bitumens and which is sufficient to raise the softening point of the one or more bitumens to at least 70‹C without lowering the tack of the one or more bitumens to a point where it will not form an instant bond when brought into hard pressure contact with a substrate at 20‹C, the polymer being a polyethylene or a crystalline polypropylene and having an average molecular weight of 1,500-4,000. Suitable substrates include woven and unwoven fibrous webs e.g. muslin, linen, hessian, glass fibre cloth, asbestos felt, polypropylene fibre or polyethylene terephthalate fibre. A film or sheet of synthetic thermoplastic, e.g. polyethylene or polypropylene, may also be used. 'One or both faces may be coated with the self-adhesive composition. These coated faces may be protected by a release member. When both faces are coated with the composition, one face may be further coated with particulate mineral, e.g. talc, sand, mineral, stone, limestone; cork particles; granules of a synthetic resin, e.g. polyvinyl chloride; or chippings of a natural or synthetic rubber. In one embodiment the coated product comprises a carpet or carpet tile, e.g. linoleum or vinyl tile, having a self-adhesive backing of the bituminous composition and a wearing surface consisting of synthetic fibres, e.g. polypropylene, nylon or polyethylene terephthalate fibres.
Patent GB-1213573-A (GB)
Title: High-pressure valve with low-pressure operating device
Inventor: LOVELESS STANLEY MARTIN
IPC: F16K31/385
Filed: 1968-02-09
Abstract: 1,213,573. Fluid-pressure servomotor systems. GENERAL GAS LIGHT CO. Feb.9, 1968 [March 3, 1967], No.6617/68. Heading G3P. [Also in Division F2] A pilot actuated valve has an inlet 12, an outlet 13 and a vent 108, a valve member 51 occupying a first position when the inlet is connected to the outlet and a second position when the inlet is disconnected from the outlet, a passage 61 interconnecting the inlet with an enclosed chamber 22 to provide constant communication therebetween, an orifice 68 in the passage to cause a pressure drop as the fluid passes therethrough, a second passage 106,104,107 interconnecting the chamber 22 with the vent 108, and an actuator 92 for selectively blocking the second passage so as to cause a pressure build up within chamber 22 to shift the valve member 51 to its first position. This shift is effected against a spring load 63 by the fluidpressure in chamber 22 acting on a diaphragm 19 to disengage the valve member from a seat 43 and close it against a seat 46 allowing fluid to flow from the inlet 12 through a passage 58 and apertures 33 in a diaphragm 21 to the outlet 13, an exhaust port (not shown) at right angles to the inlet and outlet being simultaneously isolated by the engagement of the valve member with the seat 46. The actuator 92 opens the second passage when a port 76 communicating with a diaphragm 86 is disconnected from a source S of low-pressure pilot fluid and vented to atmosphere, the valve member 51 being shifted to the right by the spring load and the fluidpressure differential on the diaphragm 21. A closed compartment may be used in place of the source S to provide an actuator responsive to changes in environmental temperature and pressure. The port 76 may also be permanently open to the atmosphere while a closed compartment on the side of the diaphragm 82 remote from the port is connected to a variable source of vacuum. The valve member 51, which may be modified by omission of the diaphragm 21 and replacement of the diaphragm 19 by a piston, may control the supply of compresed air to a cylinder.
Patent GB-530507-A (GB)
Title: Improvements in and relating to portable riveting presses
IPC: B21J15/22
Filed: 1939-03-01
Abstract: 530,507. Actuating reciprocating pumps for liquids. DESOUTTER, C. March 1, 1939, No. 6734. [Class 102 (i)] [Also in Group XXIX] A self-contained power-operated hydraulic riveting press carried and applied by hand is operated by a piston 18 working in a cylinder 11 supplied with working fluid such as castor oil in two stages the final stage to obtain high pressure being obtained by a pump which makes a number (at least five) of strikes or other incomplete movements to obtain the final pressure. The pump may be operated by an electric or pneumatic motor and as described a pneumatic motor 17, Fig. 1, is operated by compressed air admitted through a pipe connection 31 under control of a hand-lever 30 which operates a valve 25 to control the supply of air. On depression of the valve air is directed via a passage 43 to a casing 15 in which is an elastic bag 16 containing the oil and the air pressure on the bag causes the oil to flow to the upper end of the cylinder 11. Further depression of the valve 25 connects the air to the motor 17 and an eccentric 34 (not shown) on the shaft of the motor operates to reciprocate the piston 55 of a pump which is reciprocated at least five times to build up the pressure in the cylinder 11. The pump discharges its fluid under pressure through the one-way valve 60. The piston of the pump is formed of two parts connected by a spring which can yield to permit the piston progressively to deliver less liquid at higher pressure. The same effect can be obtained by operating the pump by a cam which can yield radially under action of a spring, or by employing a pivoted swash-plate which can yield against spring action. When the pressure on the piston reaches a pre-determined value a valve 89 opens and permits the oil to act upon the valve 76 to return it to the left, thus opening up a passage for the oil to the bag 16.
Patent GB-1212339-A (GB)
Title: Preparation of cyclododecanol
IPC: C07C409/14
Filed: 1969-02-07
Abstract: 1,212,339. Preparation of cyclododecanol. E.I. DU PONT DE NEMOURS & CO. 7 Feb., 1969 [16 Feb., 1968], No. 6810/69. Heading C2C. A process for the preparation of cyclododecanol comprises (1) air oxidizing cyclododecane to form a mixture containing cyclododecanol, cyclododecanone and 1 to 30% by weight cyclododecyl hydroperoxide, (2) oxidizing cyclododecatriene by reacting it with said mixture in the presence of a molybdenum-, boron- or vanadium-containing catalyst at a temperature of from 60 to 140 C., the mol. ratio of cyclododecatriene to cyclododecyl hydroperoxide being from 1À5-3, to form a mixture containing cyclododecatriene oxides, (3) catalytically hydrogenating the latter mixture at a temperature of from 100 to 250 C. and a pressure of from 40 to 5000 p.s.i. and (4) recovering cyclododecanol from the hydrogenated product obtained.
Patent GB-364415-A (GB)
Title: Improvements in and relating to electrical musical instruments
IPC: G10H3/18
Filed: 1931-03-05
Abstract: 364,415. Electric pianofortes. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin.-(Assignees of Driescher, H. ; 13, Franzstrasse, Spandau, Berlin.) March 5, 1931, No. 6896. Convention date, March 5, 1930. [Class 88 (ii).] The strings of pianofortes or like instruments i n which the vibrations are transformed into electrical currents for transmission to loud - speakers o r the like, are struck lightly by auxiliary hammers of small mass carried by the main hammers. The main hammers H, Fig. 1, N, Fig. 2a, are operated in the usual way, but are arrested by a stop A, so that only the auxiliary hammers such as the sliding piece E, or the suspended piece M, strike the strings S. The strings may be made thinner and only one provided for each note, and the tensioning devices may be simplified. The piece M may be of felt with or without a wooden filling. In Fig. 4b the suspended auxiliary hammer consists of cork &c. R with metal clamps T at the ends, and acts with an effectiveness varying with the player's touch. In Fig. 5 (not shown) a cork striking pad is secured on a leather strip'stretched over a V-shaped metal piece containing felt. In Fig. 6 (not shown) a second, smaller, auxiliary hammer is suspended in front of the first auxiliary hammer, the latter being spring-mounted on the main hammer and only coming into action with a powerful stroke.
Patent GB-287051-A (GB)
IPC: B64C11/00
Filed: 1928-03-06
Abstract: 287,051. Kruckenberg, F. March 12, 1927, [Convention date]. Elevated railway locomotives and vehicles. - Means for damping noises of moving and rotating machine parts such as propellers for tramcars and rail cars consists in the provision of a screen of sound damping material enclosing the propeller and open fore and aft. A suspended rail car 5, Fig. 1, driven by propellers 6 has casings 7 around the propellers the walls of which are thick, consist of a material such as rubber, felt, hair, or kapok suitable for damping the propeller noise, and have curved inner surfaces. The space between the lines 10, 11 is free of sound waves. The wall is stated to be designed as an elastic solid skin and for this purpose is made of sponge rubber. The casing 7, Fig. 3, is carried by a top longitudinal member 13 extending along the top of the car and at its sides by ribs 14. Specifications 257,193 and 287,174, [both in Class 103 (iv), Railway &c. vehicles, Body details &c. of], are referred to.
Patent GB-164490-A (GB)
Title: Improvements in and relating to electric circuit breakers and the like
IPC: H01H73/04
Filed: 1920-03-08
Abstract: 164,490. Hall, J. March 8, 1920. Automatic circuit-breakers.-In a free-handle circuit-breaker, the first movement of the handle latches the operating mechanism to the switch mechanism, and return movement of the handle operates the switch; it is tripped automatically by a longitudinally moving tripping member acting on a curved portion of a latch so disposed on the switch operating lever that the part engaged by the tripping member is always at the came distance therefrom. As shown applied to an overload circuit-breaker, the external handle t operates the rod s to rock the frame a consisting of a pair of parallel plates connecting together by transverse pins which serve as pivots for spring- controlled levers c, d located between the plates. The frame and the switch arm j are pivoted on a common pivot b and are connected together by a spring r tending to rotate them in opposite directions. To close the switch from the position shown in Fig. 3, the handle t is rotated through 180‹ whereby a slot g on the lever c engages a pin h on the switch arm and the lever is given a slight rotation in the anti-clockwise direction, its tail engaging a part of the lever d, giving it a slight clockwise rotation. In this movement a pin l on the lever d rubs along the inclined end o of a spring-controlled lever n pivoted on the switch arm and lifts it until finally the pin l engages with a slot in the lever n, whereupon the frame and the switch arm are locked together. On returning the handle to its original position, the switch arm is carried with the frame into the contact position. The interlock between the levers c, d, n which locks together the switch arm and the frame is broken on overload by the rise of a plunger u operated electromagnetically and engaging a projection q on the lever n. The projection q is curved so that throughout the movement of the switch-operating mechanism the point of the curve with which the plunger will engage is always at the same distance from the initial position of the plunger, thereby enabling the switch to be tripped equally at all positions of the mechanism.
Patent GB-934743-A (GB)
Title: Improvements in or relating to capacitors
IPC: H01G13/00
Filed: 1962-02-23
Abstract: 934,743. Capacitors. SIEMENS & HALSKE A.G. Feb. 23, 1962 [Feb. 23, 1961], No. 7083/62. Addition to 926,070. Class 37. In a method of constructing a capacitor from tapes comprising a first layer of varnish on a supporting carrier, a metallic coating thereon, and a second layer of varnish overlying the metallic coating, wherein at least two such tapes are juxtaposed with the whole first layer surface of one in contact with the whole second layer surface of another, with removal of the supporting carrier and subsequent rolling, as set forth in the parent Specification the tapes are secured rigidly at their contacting surfaces so that together they form a single self-supporting bond. Foils 11 (Fig. 2) comprising layers of e.g. cellulose acetate 13, laterally displaced evaporated metal coating 14, and a thicker polystyrene film 15 are carried on tapes 6 of e.g. waxed paper in storage rolls 1 (Fig. 1) from which they are wound over deflection rollers 2, 3 for separation of the foils from the tapes, which are stored for re-use on rolls 4. Friction clutches in the roller drives prevent damage to the foils, which are coated on the cellulose acetate layers with a solvent or cement from sprayer or evaporator 7, and pressed together by friction driven rollers 8 in a drying enclosure so that the foils adhere. The composite foil is cut to width at 9 and wound into a roll capacitor; contact with the electrodes being made by metal spraying the ends.
Patent GB-235651-A (GB)
Title: Improved means for reversing the direction of the windings of and for shortcircuiting reaction coils
IPC: H01F27/00
Filed: 1924-03-21
Abstract: 235,651. Tennant, J. W. March 21, 1924. Inductances. - A switch D for reversing or short-circuiting a reaction coil is mounted on an insulator A provided with a plug B and. a socket, not shown, adapted to engage the coil-holder and a plug B<1> and socket adapted to engage the coil-plug. In the position shown, the connections are the same as if the coil-plug were inserted directly in the holder. 'When the switcharm is thrown right over, the connections are reversed. When the switch-arm is made to engage a contact E, the coil is short-circuited. An adaptor without a switch may be provided to bring the co-operating coil into alignment with the reaction coil.
Patent GB-977175-A (GB)
Title: Apparatus for moulding pre-stressed concrete members
Inventor: BAKER ROBERT SHANNON
IPC: B28B23/04
Filed: 1962-02-26
Abstract: 977,175. Straining wires. J. L. CONE, C. W. CONE. and D. P. CONE. Feb. 26, 1962, No. 7357/62. Heading F2G. [Also in Division B5] In tensioning cables for moulding prestressed concrete members cables 22 are fed from the reels 23 into the arms 46 where they are held by air clamps while being cut by the saw 44. The arms are then advanced to the splaying mechanism 74 where wedges are inserted in the cable ends so they are firmly held by the anchor plates 70. The arms then move along the tracks 53, 54 until they are parallel when the anchor plates 70 are locked in the header 135, while the centres of the cables are held round the header 99. The arms are withdrawn after the air clamps have been released and the cables tautened by the jack 11 after a pallet 104 has been inserted between the two headers 99, 135 to hold them rigidly.
Patent GB-1576567-A (GB)
Title: Portable container for example for valuable documents
IPC: G08B15/00
Filed: 1978-02-23
Abstract: The carrying container is characterised in that it has two locks, the first of which assumes a blocking position, with the cover opened, and prevents the safety locking of the cover in this blocking position. The second lock is secured by means of a code. In the blocked state, this lock prevents the cover from being opened. In an attempt to open the cover by means of a false code, a device rendering the container content useless is activated.
Patent GB-164829-A (GB)
Title: Apparatus for shaping and applying tin foil and other protective coverings to the surfaces of the contents of tins and other hollow ware receptacles
IPC: B21D51/26
Filed: 1920-03-11
Abstract: 164,829. Elgy, V. C. H. March 11, 1920. Covering contents with sheet material. - Re. lates to apparatus for cutting out and applying metal foil, &c., to the tops of filled hollow-ware receptacles. Each tin, &c., previously filled, passes down a shoot 3 having a lip 4 hinged at 5, and is engaged and moved along bearers 2 by upstanding pins 8 on a conveyer 6 until it arrives on the tops of two lateral flanged supports 10. These supports are raised by actuating parts 13, 14 on the conveyer, thereby disengaging the tin from the pins 8. The supports carry the tin upwards through an aperture 15 into engagement with a band 16 of metal foil. The tin presses the foil against the resilient face 35 of a plunger 31 and against the edge of a cutter 29. The cutter severs a portion from the band 16 and flanges 36 on the plunger pressing down the portions projecting beyond the mouth of the tin. The supports 10 now descend and an abutment device 21 feeds the tin to the right, where a lid may be applied. The metal foil is fed from a supply roll 17 over guide rolls 19 to a take-up roll 18 which is actuated by the contact of the abutment device 21 acting upon a roll 18<1> in contact therewith.
Patent GB-235937-A (GB)
Title: Improvements in hair curling tongs
IPC: A45D1/06
Filed: 1924-03-24
Abstract: 235,937. Grindley, L. A. March 24, 1924. Hair-curling appliances. - Hair-curling tongs adapted to be heated and applied to the hair comprise a pair of spaced members of U-form mounted in handle and arranged for relative movement towards one another against the action of a spring. The tongs comprise two limbs B, Fig. 1, connected at their inner ends to a U- shaped steel spring H and secured in a holder A,. Fig. 3, so as to pivot about a pin D into the closed position shown. The tongs are heated and a strand of hair is placed beween the limbs- The handle is rotated and the hair is wound on the limbs B, which are thus drawn together. The Provisional Specification states that a case may be provided into which the holder A may be inserted with the tongs in either the open or closed position.
Patent GB-340869-A (GB)
Title: Improvements in and relating to clamping rings for the covers of tins, cans, & other containers
IPC: B65D45/32
Filed: 1930-03-06
Abstract: 340,869. Clamping rings for cans &c. MAUSER, R., 230, Goltsteinstrasse, Marienburg, and MAUSER MASCHINENBAU GES., 28, Marienstrasse, Ehrenfeld, both in Cologne, Germany. March 6,1930, No. 7398. [Class 125 (iii).] The tightening means a of a clamping ring d, of U-shape or semi-circular cross section, for the covers of tins &c. is provided with a limiting resistance, such as a rivet head b, in order to fix the maximum opening of the ring so that the latter and the cover always remain connected.
Patent GB-200481-A (GB)
Title: Improvements in or relating to cigar lighters and the like
IPC: F23Q2/28
Filed: 1923-03-14
Abstract: 200,481. Ever Ready Co. (Great Britain), Ltd., (Assignees of Hoka Elektrotechnische Fabrik Ges.). July 6, 1922, [Convention date]. Lighting cigars and the like by electrical devices.-Cigars and the like are lit by means of a torch 8 which is ignited by drawing its wick tube 9 across contacts 2, 3 connected to the secondary coil of an induction coil. The contacts 2, 3 comprise respectively a wire 5 stretched across a U- shaped member 4, and a spring 6 mounted parallel to the wire 5 on an upright 7. The torch 8 has a packed reservoir, and its wick tube has a flared end 11. The battery and the induction coil are enclosed in a receptacle 1, and the torch normally rests in a holder 12. In a modification, the contact 3 comprises a resilient wire fixed at one end by a screw in a split pillar.
Patent GB-549510-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1941-04-08
Abstract: 549,510. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., TAYLOR, R., and BAKER, G. T. April 8, 1941, No. 7572/42. Divided out of 549,488. Drawings to Specification. [Class 40 (iv)] In a system in which a call is extended through a tandem office at which the meter fee is assessed, signals indicative of the fee are sent over the junction to the originating office at the beginning of the conversation in a form in which they do not disturb the subscribers. The invention is described with reference to a system identical with that described in Specification 549,488. Specifications 458,095 and 518,877 also are referred to.