baber/WOPTO huggingface dataset:
Patent GB-1501206-A (GB)
Title: Device for curing pneumatic tyres in a retreading process
IPC: B29C35/00
Filed: 1975-05-09
Abstract: 1501206 Tyre curing apparatus METEC AG MECHANIK UND TECHNIK ENG 9 May 1975 [14 May 1974] 19602/75 Heading B7C Apparatus for curing the bond between a replacement tread and a tyre carcass, comprises two annular curing chambers each for receiving one or more tyres and each defined in part by radially inner and outer cylindrical walls of a common casing and in part by radially inner and outer cylindrical walls of a respective one of two doors hinged to opposite ends of the casing. As illustrated, the apparatus comprises two chambers each for receiving a single tyre. Sidewall clamping rings 16, 16<SP>1</SP>, in use, clamp the edges of elastic diaphragms 24 to the tyres. Locking of each chamber is achieved by two semi-circular, channel section bands 13 pivoted at their one ends on the casing and joined at their other ends by a toggle arrangement 14/15. Air between each tyre and the associated diaphragm is evacuated via pipe 25, and a pressurized heating fluid is introduced into spaces 4 via conduits 23 and exhausted via conduits 22. Cooling water is passed through ducts 19. The Specification also discloses an apparatus in which each chamber accommodates two tyres and in which each door is secured to the common casing by means of projections (32) on a movable ring on the casing passing through gaps provided between projections (39) on the door and being engaged behind the projections (39) upon rotation of the ring.
Patent GB-658067-A (GB)
Title: Improvements relating to rail joints of railway permanent way
IPC: E01B11/34
Filed: 1949-07-26
Abstract: 658,067. Rail joints. ASHENDEN, C. July 26, 1949, No. 19609. [Class 104 (ii)] The joints between track rails 2, 2<1> are provided with additional support from fish or load-spreading rails 4 which are mounted outside the track rails and parallel thereto within chairs 5 each provided with two pairs of jaws, the two inner jaws being provided by a single block 8 upstanding from the base 9 of the chair. Three such chairs may be provided at each side of a joint to receive a length of supporting rail 4. As shown in Fig. 3 the jaws of the chair which directly engage the rails are recessed at 10 to receive the lower flanges of the rails.
Patent GB-911228-A (GB)
Title: Improvements in or relating to methods and apparatus for blow-moulding thin-walled hollow bodies of synthetic resin
IPC: B29C49/50
Filed: 1960-06-03
Abstract: 911,228. Blow-moulding hollow articles. PROPLASTO A.G. June 3, 1960 [June 8, 1959], No. 19706/60. Class 87(2). [Also in Group XVII] A container having a recessed bottom (see Croup XVII) is blow-moulded by enclosing a hot extruded tube 10 between mould halves 5, 6 having axially moving parts 8, 9, and blowing the tube against the mould by supplying air through a laterally movable nozzle 7a. The parts 8, 9 are then moved upwardly to the position shown in Fig. 4 to shape the bottom of the container. The bottom of the container is trimmed by a knife 11.
Patent GB-799851-A (GB)
Title: Improvements in trumpets, cornets and similar wind instruments
IPC: G10D9/04
Filed: 1956-06-26
Abstract: 799,851. Brass musical instruments. LISI, C. June 26, 1956, No. 19716/56. Class 88 (2). In a trumpet or similar instrument having three piston valves, the air path through the valve system when the pistons are in their upper, inoperative positions includes curved passages 40 and 43 through the outer pistons and a straight passage 44 through the central piston. Depression of the third valve 24 introduces into the air path an external U-tube 17 and passages 35 (C-shaped) and 38 through the piston. The first valve 26 is similar to the third, but depression of the second valve 25 diverts the air stream through a U-shaped passage 30 inside the piston in place of the straight passage 44. The passages 30, 35. 38, 40, 41, 42 and 43 are substantially semi circular in cross-section.
Patent GB-584406-A (GB)
Title: Improvements in or relating to the manufacture of composite material from stalks or twigs of plants or trees
IPC: C08L97/02
Filed: 1944-10-13
Abstract: The process of the parent Specification is modified by applying to the partially or wholly decorticated stalks or twigs a thermo-setting glue or synthetic adhesive bonding material such as that known under the Registered Trade Mark of "Aerolite," and thereafter subjecting said stalks or twigs to pressure while applying thereto high frequency electricity.  The Provisional Specification describes also the application of high frequency electricity with pressure to the manufacture of such products from stalks and twigs generally.
Patent GB-530958-A (GB)
Title: Improvements in and relating to wave transmission systems
IPC: H03G7/04
Filed: 1939-07-07
Abstract: 530,958. Thermionic amplifiers. STANDARD TELEPHONES & CABLES, Ltd., and MEERS, R. A. July 7, 1939, No. 19843. [Class 40 (v)] [Also in Group XXXIX] In electric transmission systems comprising volume range compression and expansion circuits arranged at the outgoing and incoming ends respectively of the transmission system in which the expansion circuit comprises a thermionic amplifier provided with automatic gain control dependent upon the level of the input signals and controlled by an amplifier to which part of the input signals is applied, the control amplifier is provided with a negative feed back path including an attenuation equalizer havjng attenuation frequency characteristics which is complementary to that of the transmission circuit. The input terminals 1, 2 of the expandor are connected to the output terminals 3, 4 through an attenuator pad AP, transformer T1, valve V1, and output transformer T2. Automatic gain control is obtained by bridging a high impedance transformer T4 across the input terminals 1, 2, the portion of the signal thus taken off being amplified by a valve V2. The amplified output from the valve V2 is rectified by a bridge rectifier X2 and the rectified signal applied to a bridge rectifier X1 arranged in the negative feed back path of the valve VI. In order to prevent amplitude or phase distortion the feed back path of the valve V2, e.g. the cathode leg, is provided with attenuation and phase equalizers AE and PE while the rectifier X1 is similarly provided with a circuit, comprising inductance L4, condenser C8 and resistance R6, which prevents the gain frequency characteristics of the compressor and expandor from diverging at low signal levels. Resistances R4, R1 are provided in shunt and in series with the rectifier X1 as limiters therefor. A choke L3 and condensers C1, C2 are provided in the path between the rectifiers X2 and X1 (a) to reduce harmonic content (b) to enable a desired operative and hangover time to be obtained. An operative time of 25 milliseconds is specified. A potentiometer P placed across the transformer T4 permits variation in the proportion of the signal passed to the control stage.
Patent GB-1198065-A (GB)
Title: Process for the Production of Meta Benzene Disulfonyl Chlorides
Inventor: SUZUKI SHIGETO
IPC: C07C309/86
Filed: 1969-04-18
Abstract: 1,198,065. Benzene disulphonyl chlorides. CHEVRON RESEARCH CO. 18 April, 1969 [1 May, 1968], No. 19895/69. Heading C2C. Benzene disulphonyl chlorides of the formula wherein X is an inert substituent e.g. phenyl, alkyl C 1-20 , fluorine, chlorine or bromine, are prepared by heating a mixture of carbon tetrachloride and the appropriate benzene disulphonic acid in a molar ratio of at least 1À8: 1 at a temperature in the range of from 130 C. to a temperature which is below the thermal decomposition temperature of the desired disulphonyl chloride, at a pressure sufficient to maintain carbon tetrachloride in the liquid phase, in the presence of an acid catalyst comprising sulphuric, phosphoric and/or polyphosphoric acid.
Patent GB-516699-A (GB)
Title: Improvements in and relating to shutters
IPC: G03B9/50
Filed: 1938-07-05
Abstract: 516,699. Shutter for signal lamp. WILLIAMSON, S., and WILLIAMSON MANUFACTURING CO., Ltd. July 5, 1938, No. 19907. [Class 75 (iv)] [Also in Group XX] In a venetian-blind type shutter for signalling lamps &c. the slats are operated through quickpitch screw-mechanism. The slats 1 may be pivotally mounted between screws 2, 3, Fig. 3, and twisted at one end to form a quarter turn of a quick-pitch helix 6, the turning of the slats being effected through an oscillatable bar 7 journaled in plates 9 secured to the shutter frame and formed with slots 10, or with pins or rollers engaging the helices.
Patent GB-916945-A (GB)
Title: Process for the manufacture of ammonia from strong ammoniacal liquor
Inventor: HUCK GEORG
IPC: C01C1/10
Filed: 1960-06-07
Abstract: <PICT:0916945/III/1> Ammonia is recovered from coke oven liquor and other strong ammoniacal liquors by diluting the liquor so that it contains about 7 to 12% ammonia and heating the diluted liquor under a pressure of 5 to 15 atm., in deacidifier 1, to remove all the hydrogen sulphide and some of the carbon dioxide; the liquor is then stripped, in column 9, of ammonia and residual CO2, and finally this vapour mixture is passed up scrubber 13 wherein it is washed with liquor-to-be-treated which dissolves out the CO2 so that gaseous ammonia, containing only a little water vapour, is obtained at the top of the scrubber.  The liquor is supplied to the plant via pipe-line 16; and part or all of it may pass through scrubber 13. The liquor is preferably diluted with part of the hot waste water withdrawn from the base of column 9.  The diluted liquor is pumped, through conduits 2 and 3, into the side of deacidifier 1; and cold water is introduced into the top through p  conduit 4.  The deacidifier is heated by steam passing through coils 7.  The steam leaving coils 7 may be utilized to strip the liquor in column 9.
Patent GB-200578-A (GB)
Abstract: 200,578. Siemens Bros. & Co., Ltd., Grinsted, W. H., and Body, H. April 12, 1922. Semi-automatic exchange systems.-A subscriber may call the operator by dialling a particular number such as 0, whereupon the selector acts to light a lamp at a manual board identifying the calling line by means of a circuit extending back over an extra wiper of the line switch, and closed by a shaft contact or by a relay connected to a terminal of the selector. The invention is described with reference to a P.B.X. in which each subscriber's line passes through a jack at the manual board, so that the selector is released when the operator plugs in. Line switch. The driving circuit is closed by the line relay R and the switch rotates until an idle selector is found, when the test relay T energizes over windings 2, 3, breaking the driving circuit. The selector is marked busy by the short-circuiting of the high resistance winding 2. Selector. The line relay A energizes a slow relay V, and impulses are repeated to the vertical magnet H over a front contact of the relay A, a slow relay D energizing at the first impulse and releasing at the end of the train to operate a slow change-over relay E. The second train of impulses are repeated to the rotary magnet DS, the relay E being kept energized by the relay D over a rotary off-normal contact W1. Supply of ringing-current. In the interval between the release of the relays D, E, the test relay P energizes and closes the ringing circuit over a relay TR, which operates upon the reply of the called subscriber to switch the connection through. If the line is busy, the relay P does not energize, and the busy tone circuit is completed. Release. Upon relapse of the line relay A, the relay V falls back and connects up the release magnet M. Calling the operator. In this case the relay P energizes over an earthed resistance r individual to the selector, and the a and b terminals are left disconnected. In this position a cam 4 closes spring 5, 6, energizing a relay C over the wiper e of the line switch to light a lamp 7 associated with the jack 3. Alternatively a relay MB may be connected to the corresponding terminal of the selector, so as to energize in series with the test relay P and close the circuit of the relay C.
Patent GB-294530-A (GB)
Title: Improvements in or relating to burners for blue flame lamps of the wick type
IPC: F23D3/00
Filed: 1928-07-10
Abstract: 294,530. Aladdin Industries, Ltd., (Assignees of Davis, C. W.). July 25, 1927, [Convention date]. Wick burners, annular blue flames.-In a. blue flame central draught wick burner for use in an incandescent mantle lamp comprising inner and outer wick tubes 1, 2, a wick 3 operated by a wick raiser 3a, a perforated basket 4, and a gallery 6, the gallery 6 carries a baffle 24 formed with perforations 25, 25a and arranged between the outer wick tube and the burner cone. The baffle 24 divides the air entering through the basket 4 into two currents, the main current flowing to the combustion zone above the baffle and a smaller current being directed on to the wick above the wick tube 2 so that the wick does not burn below the perforations 25<a> and overheating of the wick tubes is prevented. The wick tube 2 is made shorter than usual and may be provided with a flame flange 23 which is preferably provided with three notched-cut projections for centralizing the baffle 24. An inturned stiffening flange 26 on the baffle prevents an air current from impinging upon the base of the flame. An example of suitable dimensions is given in the Specification. Specification 294,531 is referred to.
Patent GB-1156068-A (GB)
Title: An Envelope for a Letter, Packet or the like and a Method of Producing Such an Envelope.
Inventor: DZIEMCZYK EMANUEL
IPC: B65D27/38
Filed: 1967-05-01
Abstract: 1,156,068. Envelopes. E. DZIEMCZYK. 1 May, 1967, No. 20111/67. Heading B6A. Envelopes, having a tear strip 4, Fig. 2, which is disposed along the fold line contiguous with the sealing flap so as to facilitate opening of the envelopes and forming the only closure of the mouth 7 of the envelopes when they are sealed, are made from blanks 6 which are cut from a web material that is produced by joining spaced webs 1, 2, 3, Fig. 1, with adhesive coated strips 4 produced from textile fibres which are bonded by cellulose and oriented such that they tear along straight lines parallel to the longitudinal axis of the strips.
Patent GB-279001-A (GB)
Title: Improvements in valve mechanism for regenerators
IPC: F23L15/02
Filed: 1927-07-28
Abstract: 279,001. Handzik, K. July 28, 1927. Valves, reversing and like.-In reversing valves of the kind comprising a rotatable bell valve having a vertical partition so that a gas port covered by the valve can be placed in communication with either of two other ports leading to the furnace, a cut-off valve being provided which automatically closes the gas port while the change is being made, the cut-off valve a is arranged within the bell valve t with its stem c extending through a curved slot l in the bell valve. The bell valve is rotatable on a stem s suspended from a lever h whereby it can be lifted to withdraw the partition from one of the transverse channels between the ports whereupon the valve can be rotated through 90‹ and lowered to place the partition in the other channel. Above the gas port 1 is arranged the cut-off valve a suspended by the rod c from a lever h' with a counterweight n, a lever d connecting the rod c to the stem s so that when the bell valve is lifted the valve a is lowered on to the port 1. The rod c passes through a stuffing box b in the casing of the valve, and a hydraulic seal comprising an annular trough f on the top of the bell valve and a ring g fixed to the valve casing having flanges dipping into the trough prevents escape of gas through the curved slot l in the bell valve. Instead of being annular, the trough f and ring g may be limited to a segment of length adequate for the rotation of the valve.
Patent GB-706302-A (GB)
Title: Improvements in and relating to washing machines
IPC: D06F17/02
Filed: 1952-08-11
Abstract: 706,302. Washing-machines. CORDES, B., CORDES, W., CORDES, M., KRABUS, K., WELTER, E., KOCH, G., and KRABUS, F., [trading as MASCHINENFABRIK W. CORDES KOMMANDIT-GES.]. Aug. 11, 1952 [Aug. 17, 1951], No. 20190/52. Class 138 (2) Washing liquid is forced into and circulated through a tank 1 from the middle part of the bottom of the tank, and the liquid inlet is covered by a hood 9 having in its side wall a plurality of vertical inlet slots 11 which are inclined to the outer and inner wall surfaces of the hood so as to produce a circular component of movement of the liquid in a horizontal plane. Outlet holes 4 in the tank 1 are located at or extend above the level of liquid in the tank so that air is sucked into the circulating liquid. The holes 4 are arranged adjacent the corners of an outer rectangular jacket 2. The hood 9 covers a propeller 3 driven by a motor (not shown) and is removably held in place by means of a bayonet catch, Fig. 3 (not shown). A standpipe 13 prevents the clothes from being deposited in the neutral zone above the hood 9. Helical guide plates 19 or guide ribs pressed in the side walls of the tank deflect the circular horizontal movement of the liquid into a vertical movement. Alternatively, vertical ribs may be provided. The rim 16 of the tank 1 rests loosely on a flange 17 on the jacket 2.
Patent GB-148308-A (GB)
Title: Apparatus for steering air-craft
IPC: B64C9/10
Filed: 1920-07-09
Abstract: 148,308. Flettner, A. Feb. 28, 1918, [Convention date]. Dropping b o m b s from a height. - Auxiliary planes g, h for assisting the adjustment of the steering-planes a of aircraft may, according to the Specification as open to inspection under Sect. 91 (3) (a), also be used for dropping bombs or other loads by the action of the air pressure on the auxiliary planes. This subject-matter does not appear in the Specification as accepted.
Patent GB-239353-A (GB)
Title: An improved adjustable fastening or connection for the brake mechanism of motor cycles and like vehicles
IPC: B62L3/02
Filed: 1924-08-28
Abstract: 239,353. Webb & Co., Ltd., H. C., and Atkinson, G. L. Aug. 28, 1924. Clamps, screw.-A screw clamp device for connecting a pull rod of brake mechanism to another member of the mechanism whereby initial slackening of the screw permits adjustment of the rod to compensate for wear of the brake and further slackening allows detachment of the rod comprises in the form shown, a block 1 connected at 3 to the cam lever 2 of the brake, and an eyelet 11 through which passes the pull-rod 8. A nut 14 screws on the end of the eyelet 11 and normally clamps the rod 8 in a groove 7 in the block 1. By slackening the screw the rod is rendered free to slide for adjustment and when the slackening of the nut is sufficient, the rod can' be disengaged from the groove to permit the removal of the eyelet with the rod through the slot 9 in the block 1. In a modification, the slot 9 is of keyhole form so that it is necessary to slacken the nut sufficiently to enable the eyelet to be withdrawn from the circular part of the hole before it can be removed. Or the block may have a circular recess to receive the head of the nut 14. In a further form, the eyelet is formed with a slit to cause the grip thereof on the rod to be of a more flexible character.
Patent GB-203692-A (GB)
Abstract: 203,692. Quaker Oats Co., (Assignees of Miner, C. S.). Sept. 7, 1922, [Convention date]. Antiseptics.-Biological preparations, are preserved by treatment with furfurol, which is stated not to harden the tissues. A seven per cent solution of furfurol in water is suitable. The Specification as open to inspection under Sect. 91 (3) (a) states that the furforal may also be used for treating glue liquids in the manufacture of glue. This subject-matter does not appear in the Specification as accepted.
Patent GB-981687-A (GB)
Title: Polyethers and derivatives thereof
Inventor: GARNETT EDWARD DEREK
IPC: C08G18/50
Filed: 1963-05-22
Abstract: Urea-alkylene oxide adducts are prepared by reacting an alkylene oxide with a urea derivative of a metal of Group Ia, preferably mono-sodio-or potassio-urea, urea also optionally being present.  The preferred alkylene oxides contain not more than 4 C atoms, e.g. ethylene, propylene, or butene-1 oxides.  The reaction proceeds between 0 DEG  and 200 DEG  C., preferably at 70-110 DEG  C.  After reaction the metal is removed by neutralization with an acid, e.g. acetic or phosphoric acids, or disodium dihydrogen pyrophosphate, or an acid clay.  In examples the reactions of propylene oxide with urea and monosodiourea-(1), monosodiourea-(2) and (3), and with sodium and urea-(4) are described.ALSO:Urea-alkylene oxide adducts are prepared by reacting an alkylene oxide with a urea derivative of a metal of Group Ia, preferably sodium or potassium, urea also optionally being present. The preferred alkylene oxides contain not more than 4 C atoms, e.g. ethylene, propylene or butene-1 oxides.  The reaction proceeds between 0 DEG  and 200 DEG  C., preferably at 70-110 DEG  C. After reaction the metal is removed by treatment with an acid, e.g. acetic or phosphoric acids, or disodium dihydrogen pyrophosphate, or an acid clay.  The adducts may be treated with organic polyisocyanates or polyisothiocyanates to form polyurethanes. Tolylene diisocyanate and the "one shot process" for foams are preferred.  The isocyanate is preferred to be in 5-10% excess, and the catalyst to be triethylene diamine.  The materials are particularly suitable for flexible and semi-rigid polyurethane foams. In the examples the reactions of propylene oxide with urea and monosodiourea (1), monosodiourea (2) and (3), and with sodium and urea (4), are described. Example 5 gives details of the preparation of a polyurethane foam from the product of Example (2), tolylene diisocyanate, water and a silicone oil in the presence of triethylene diamine and stannous octoate.
Patent GB-298067-A (GB)
Title: Improvements in washers for use in locking nuts and the like
IPC: F16B39/286
Filed: 1928-07-13
Abstract: 298,067. Etablissements Gony et Lantier. Dec. 23, 1927, [Convention date]. Locking nuts. - A washer 3 for locking nuts is formed with non-parallel faces and with segmental screw threads 5 in the aperture 6. The washer is adjusted by means of recesses 4, 4', flats, holes, &c.
Patent GB-915432-A (GB)
Title: Improvements in or relating to valve controlled fluid-flow conduits
IPC: G05D7/01
Filed: 1960-06-10
Abstract: 915,432. Valves. GRATZMULLER, J. L. June 10, 1960 [June 11, 1959], No. 20459/60. Class 135. Apparatus for controlling the flow of fluid from a source of high pressure 1 to a receiver of considerably lower pressure 2 comprises a conduit 3, 6 containing a filter 4, a reducing valve 5, a second filter 20 and a restrictor 7. The restrictor 7 has a greater cross-section relative to its length than a capillary tube (i.e. a tube of small cross-section relative to its length such that the flow through it is lamina). The pressure reducing valve has a housing divided into two chambers 8, 9 by a diaphragm 10 which is loaded by a spring 18. The chambers 8, 9 are connected to the down-stream and upstream sides of the restrictor respectively. The diaphragm 10 actuates a valve member 13 and the reducing valve sets an upper limit to the pressure difference across the restrictor which is considerably lower than the pressure drop from the source to the receiver. The second filter 20 interposed between the valve and restrictor does not arrest particles which have passed the first filter but foreign particles which may be present in the valve.