baber/WOPTO huggingface dataset:
Patent GB-305267-A (GB)
Title: Improvements in or relating to coin-freed vending machines
IPC: G07F9/02
Filed: 1927-11-04
Abstract: 305,267. Fiala, A. K. Nov. 4, 1927. Magnetic apparatus.-A coinfreed vending machine is provided with a magnetic recording and reproducing device, such as a Poulsen telegraphone, which is in operative connection with the coin insertion or other mechanism of the machine so as to cause a loud speaker to deliver an audible announcement whenever the machine is brought into use. The announcements may be repeated or changed as desired. The text spoken into a microphone 2, Fig. 1, is impressed on a rotating steel disc 1, when the arm 12 of a switch 13 is on a contact 14, by a small electromagnet 11 carried by a lever arm 36 which is moved radially over the disc. Current is supplied from batteries 3, 4 in series, through a low-frequency transformer 5, 6. The negative pole 9 of the battery 4, one end 7, 8 of each of the primary and secondary coils of the transformer, and one end of the magnet coil 11 are all earthed. The circuit of the batteries is provided with a cam switch 10 which is closed only when the disc 1 is rotating. The magnet 11 is carried by a leaf spring 35 detachably secured to the lever 36, and the recording and reproducing point of its core 33 is protected by solder 43 from wear. In order to eliminate disturbing subsidiary noise, a thin layer 44 of magnetically inactive material, such as paper, celluloid and the materials sold under the registered Trade Marks " Cellon," " Cellophane." is interposed between the disc 1 and the point of the magnet 11. The text is obliterated, when an alteration is desired, by moving the switch arm 12 to a contact 17 and traversing the magnet 11 over the disc 1. For reproduction, the switch arm 12 is moved to a contact 19, and the switch 26, 27 of a threevalve amplifier is closed. The magnet 11 now acts as a pick-up and the amplified acoustic currents are reproduced on a loud speaker 24<1>.
Patent GB-1343588-A (GB)
Title: Paint compositions
IPC: C09D5/44
Filed: 1972-06-23
Abstract: 1343588 Paints NIPPON ZEON CO Ltd 23 June 1972 [25 June 1971 (2)] 29613/72 Heading C3P Paints comprise as film-forming material either a mixture of 90-40 wt. per cent of (a) a liquid polybutadiene having at least 60% cisconfiguration and a number average M.W. of 500-20,000, with 10-60 wt. per cent of (b) a liquid polypentadiene having at least 70% trans-configuration and a number average M.W. of 500-20,000, the percentages being calculated on total (a) + (b), or such a mixture which has been modified in known manner, e.g. by reaction with an unsaturated carboxylic acid or anhydride followed by neutralization. The paints may be oil or enamel paints, conventional paints containing a suitable solvent, or electrodepnsition paints containing water. Fillers may also be present. Exemplified compositions are as follows: (1) liquid polybutadiene, liquid polypentadiene and TiO 2 ; (2) and (3) liquid polybutadiene, liquid polypentadiene, lead naphthenate and nickel naphthenate; and (4) and (5) mixed liquid polybutadiene/polypentadiene reacted with maleic anhydride, the product neutralized with triethanolamine, and then diluted with ethylene glycol monobutyl ether and water. The liquid polymers used above are prepared as follows: (A) liquid cis-polybutadiene by polymerizing butadiene in butene-1 solvent in the presence of a catalyst comprising diethyl aluminium chloride, nickel naphthenate and water; (B) liquid trans-polypentadiene by polymerizing 1,3-pentadiene in the presence of BF 3 /diethyl ether.
Patent GB-702448-A (GB)
Title: Improvements in firearms
IPC: F41A11/00
Filed: 1952-11-24
Abstract: 702,448. Firearms. OLIN INDUSTRIES, Inc. Nov. 24, 1952. [Dec. 18, 1951], No. 29661/52 Class 119 A firearm is provided with a device 7 consisting of a receiver liner 9 having means for removable connection to the receiver 1 and an integral chamber member 8 with means for the removable connection of the barrel thereto, the liner being constructed for the operation of the breech-block 2 therein and the chamber being proportioned to receive a cartridge. In the construction shown the liner 9 of a Winchester repeating shot gun is recessed to receive the rounds and to eject the cartridge cases, and has a shoulder 16 for the breechblock. The device 7 is screwed at 15 into the receiver until a flange 10 meets the end wall 17 of the receiver, It also has interrupted threads 21, 22. for engagement with corresponding threads on the barrel. Upon the rear end of the barrel is screwed a receiver-extension 4, Fig. 7, having a tubular extension 32 which slidably receives the magazine 5. The magazine has interrupted lugs 33, 34, which engage with similar lugs in the receiver and which thus serve to hold the receiver-extension in position. The front end 20 of the device is made relatively thin so that it can expand into sealing contact with the barrel when a round is fired. In view of the fact that the loads, on firing, are taken by the device 7 the receiver may be made of light metal, such as aluminium, or of steel stampings, malleable cast iron, or of high strength moulded or laminated material such as bonded glass fibres, while the barrel may be made of thin strong material such as steel or of a light metal such as aluminium.
Patent GB-632612-A (GB)
Title: Improvements relating to domestic fireplaces
IPC: F24B1/19
Filed: 1947-11-07
Abstract: 632,612. Ashpans. BAXENDALE, R., and BAXENDALE, J. Nov. 7, 1947, No. 29732. [Class 126] In a fireplace of the type wherein the air for combustion may be supplied from outside the room to a space beneath the grate e.g. as described in Specification 470,395, the ash-box is provided with hinged side portions which, after the box has been placed in position, can be moved outwards by means of a toggle linkage to come adjacent to the walls of the casing in which the box is situated so ensuring that all the ash from the grate passes into the box. As shown the ash box comprises rigid side pieces a fixed to a base member b, parts d whose ends are bent inwards at right angles being pivoted to the sides a at g. These parts are moved outwards to engage the front and end walls of the casing j of the fireplace by depression of the links e, pivoted to one another at f and to the parts d at h. Before removing the box for emptying the linkage is raised so retracting the parts d. According to the Provisional Specification the whole of the side pieces a may be hinged to the base piece b.
Patent GB-502269-A (GB)
Title: Improvements relating to earthing posts for wireless receiving apparatus
IPC: H01Q1/48
Filed: 1937-10-30
Abstract: 502,269. Earth rods. ADIE & NEPHEW, Ltd., C. J., and FLETCHER, R. A. Oct. 30, 1937, No. 29737. [Class 36] An earth rod has a cruciform, channelled, or other flanged or webbed cross-section and is formed by one or more suitably bent or folded metal strips. As shown in Figs. 1 and 2, a rod is of hollow cruciform cross-section and is formed by two metal strips a each shaped by rolling, drawing or folding to a tee cross-section. The head d of each tee is formed with lips or flanges e, the lips or flanges of one tee being arranged withinthose of the other tee and united thereto by welding or riveting. The lower end of the rod is tapered and the upper end is closed by a cap h retained by a bolt f and wing nut i which serve also as the means for securing the earthing wire to the rod. In a modified construction, the two side portions b of the stem of each tee are in contact and the head portions of the two tees are also in contact. In another construction, a rod of I cross-section comprises a pair of channel-sectioned strips secured together with the channels outermost. Any of these constructions may be formed from a suitably shaped single metal strip. Fig. 3 shows a rod having a cross-section similar to that shown in Fig. 2 and formed from a single strip.
Patent GB-388117-A (GB)
Title: Improvements in or relating to steam turbines
IPC: F01D11/02
Filed: 1931-10-27
Abstract: 388,117. Steam turbines. GUY, H. L., Thornhill, Hale Road, Hale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Oct. 27, 1931, No. 29787. [Class 110 (iii).] To minimize the amount of leakage steam coming into contact with the inlet side of the first wheel 7 of a turbine, a plate 4 is mounted on the diaphragm 1 to carry the steam to near the nozzle ring 21. The plate 4 is secured to the diaphragm by rivets 15 and is separated from it by washers 14. Packing 12 additional to the main packing is provided. In a modification, Fig. 4, the plate 4 is secured by rivets to a ring 16 having radial abutments 17 which fit into recesses 8 in the diaphragm 1. These abutments serve to space the plate 4 from the diaphragm and also provide a passageway for the leakage steam.
Patent GB-803343-A (GB)
Title: Improvements in, or relating to a method of and apparatus for casting molten metal
IPC: B22D39/06
Filed: 1954-10-18
Abstract: 803,343. Forcing liquids by gaseous pressure. BIRLEC, Ltd. Oct. 18, 1954 [Oct. 16, 1953], No. 29859/54. Class 102(2). [Also in Groups II, XVIII, XXII, XXXVI and XXXVIII] Molten metal is discharged in successive substantially equal quantities from a container such as an electric induction furnace (which may be of one of the types described in Specifications 777,213, 748,498 [both in Group XXII] and 712,672 [Group XI]) through a discharge nozzle having its inlet below the minimum metal level in the container and permanently in communication with the container, by applying intermittently a pressure, as by the use of a gas under pressure supplied above the metal (the container being gas tight) the value or time of application of which is automatically varied to compensate for changes in the level of metal in the container. Fig. 4 illustrates diagrammatically one method ; a mechanism 93 controls a compressor delivering gas to chamber 83 via conduit 90 ; a contact 96 at the pouring lip enables control of the pressure applied in response to the time taken for the molten metal to reach it, or the maintenance of a steady pressure keeping the metal level at the lip, on which steady pressure a fixed discharge pressure is intermittently superimposed. The pressure control may be automatic in the sense that the value or time of application of the pressure is increased by a pre-set mechanism in accordance with the number of pours that have taken place, or it may control the pressure in response to level sensing means such as a metal plate the capacity between which and the surface of the metal in the container is measured, or a thermocouple mounted above the molten metal so that its temperature varies with the level. Specifications 702,833 [Group XXII]and 522,801 also are referred to.
Patent GB-244084-A (GB)
Title: Improvements in electric vacuum cleaners
IPC: A47L5/28
Filed: 1925-11-26
Abstract: 244,084. Ascher, H., (trading as Ascher, J., [Firm of]). Dec. 3, 1924, [Convention date]. Filtering.-A vacuum cleaner is surrounded by a felt bag f tightly stretched by a ring g and supported at its upper end by a ring resting on a shoulder h ot the dust receptacle; the filter is supported from the upper ring. The cover of the receptacle is removable, and is provided with a flange fitting tightly into the receptacle and having a slot which may he turned into or out of register with the suction nozzle m. A suction hose may be fitted to a connection n on the cover, which is normally plugged. The filter may be withdrawn to empty it, after removing the cover.
Patent GB-918904-A (GB)
Title: A process for the electro-deposition of a cadmium-titanium alloy
IPC: C25D3/56
Filed: 1961-08-18
Abstract: Orthotitanic acid is reacted with hydrogen peroxide and the product is added to a bath which contains, for instance, sodium ions, to give sodium pertitanate.  This compound can be used in alkaline electrolytic baths (see Group XXXVI).
Patent GB-869264-A (GB)
Title: Improvements in or relating to power-assisted gear shift mechanisms
Inventor: PAGE WILBUR MILLS
IPC: F15B9/08
Filed: 1958-09-19
Abstract: 869,264. Fluid-pressure servomotor control systems. CLAYTON DEWANDRE CO. Ltd. Dec. 21, 1959 [Sept. 19, 1958], No. 30010/58. Class 135. [Also in Group XXIV] In a power-assisted gear shift mechanism a striker 2 is directly rotatable by a control-sleeve 3 for gear selection, axial movement of the sleeve initiating operation of a gear-shifting compressed air follow-up servopiston 4 to which the striker is directly secured by a nut and bolt 5. The sleeve houses a pair of axially located air inlet valves 15 and control spools 18, the latter of which, in the neutral position shown, are out of contact with the inlet valves and place each end of the servo-cylinder 1 in communication with an exhaust port 21 through sleeve ports 23 and spool passages 19, 20. Axial movement of sleeve 3 causes one of the spools 18 to unseat the associated inlet valve 15 to cut off the appropriate cylinder end from exhaust port 21 and admit compressed air from an inlet 12 through sleeve ports 10, 11, 23. Sleeve 3 follows up the movement of piston 4 and striker 2 so that when the gear is fully engaged this movement and the action of biasing springs 25 causes recentring of the sleeve and piston, closing of the inlet valve and movement of the spool to reconnect both ends of the cylinder with exhaust. In the event of failure of the air supply axial movement of sleeve 3 will operate striker 2 when the axial clearance between these members has been taken up.
Patent GB-188943-A (GB)
Title: Improvements in or relating to telephone instruments
IPC: H04M1/52
Filed: 1921-11-10
Abstract: 188,943. Pollak, J. E., (Siemens & Halske Akt.-Ges.). Nov. 10, 1921. Stencil a n d keyboard switches; interlocked switches.-The line selecting keys hl of a telephone intercommunication switchboard are of the lever type and are pivoted at 7 to metal plates 6 extending across the front. The contact springs 9, 12 are supported on insulating strips 8, 13 on the plates 6, and rest on insulating discs 11 secured to the keys hl. Rails 15 extend over all the spring sets and are pivotally connected to the metal plates 6 by arms 16 and to each other by a bar 17. When a key hl is depressed the corresponding rail 15 is lifted and drops behind the nose 19 of the lever key. On any subsequent key being depressed the rail 15 of the depressed key is raised and the key returns to normal under the influence of control springs 9, 12. Replacement of the receiver on the cradle 20 also releases any depressed keys through a rod 22 and lever arm 23 which is linked with the bar 17.
Patent GB-1506585-A (GB)
Title: Railway rail clamp
IPC: B66C7/08
Filed: 1975-06-12
Abstract: 1506585 Clamping railway rails CLARKE CHAPMAN Ltd 12 June 1975 [6 July 1974] 30048/74 Heading E1G In a rail fastening particularly for heavy girder-supported crane tracks, wherein a blade spring 12 rests at one end on the rail support 22 and at the other end on the base flange of a rail such as 14 or 16, the spring 12 is loaded intermediate its ends by a screw 36 inclined to the vertical and threaded in an aperture of an overlying web 32 extending from a block 30 secured (e.g. welded) to the support 22, the web 32 being inclined to the support surface so that the spring 12 is positioned in an aperture tapering away from the rail. As shown the web 32 comprises a bridge piece extending between two blocks 30 and overlies two side-by-side sinuous springs 12 loaded by respective screws 36. The web 32 has depending lugs 38 engaged by the sharp upper tips 43 of the springs. Each screw 36 has a pair of inclined opposed end flats 44 to provide self-locking engagement with its spring. A resilient rail pad 20 is provided.
Patent GB-286208-A (GB)
Title: Process for the recovery of organic substances from liquors
IPC: A23J1/00
Filed: 1927-11-10
Abstract: 286,208. Laboratorium Tasch Akt.- Ges. Feb. 28, 1927, [Convention date]. Albuminous compounds are obtained from the waste liquors obtained in salting-processes for the preservation of meat, by adding an organic sulphonic acid or sulphuric acid as long as a precipitate is produced. In an example, guiacol sulphonic acid is employed. Other sulphonic acids of cyclic compounds may be used.
Patent GB-469798-A (GB)
Title: Improvements in mechanical hammers and like impact tools
IPC: B25D11/12
Filed: 1935-11-01
Abstract: 469,798. Percussive drills. LEWIS, F. M. Nov. 1, 1935, No. 30189. [Class 124] The working piston b is reciprocated in the cylinder a by a crank. When the tool e is pressed against the work, the free piston c is raised, closing the parts k and the piston c then follows with some lag, the reciprocations of the piston b. The inlet non-return valve m allows entry of air as required when the piston b is at the top of its stroke, whilst the relief valve m<1> exhaust air from between the pistons if the pressure rises too high. The tool e is retained by the stop h.
Patent GB-1400186-A (GB)
Title: Waterstops
IPC: E04B1/684
Filed: 1972-06-28
Abstract: 1400186 Waterstops BURMAH INDUSTRIAL PRODUCTS Ltd 23 May 1973 [28 June 1972] 30322/72 Heading E1B A surface waterstop formed with keying ribs 9 and 10 has a further longitudinal flange extending from the same face at or near the centreline, said flange being provided with eyelets 12, hooks or other means at intervals along its length for securing wire 13. The waterstop is used in a wall joint just above the floor.
Patent GB-1194205-A (GB)
Title: Self-Damped Calender Roll.
IPC: F16C13/00
Filed: 1967-06-30
Abstract: 1,194,205. Calenders for paper. BELOIT CORP. 30 June, 1967 [15 Aug., 1966], No. 30356/67. Heading D2A. The vibration of a calender roll (11) is damped by making the roll as a shell (12) journalled for rotation about a stationary shaft (15) and providing two diametrically opposed pressure means on the shat to engage the inside of the shell, fluid-pressure means to load the pressure means, and at least one flow-restriction orifice connected with the fluidpressure means. As shown, shoes 19 bear on the inner wall 13 of the shell, and grooves 27 are formed in the surface of the shaft 15. These grooves are closed at their ends, and rectangular pistons 32 can slide in the grooves. Passageways 39 admit fluid under pressure to the grooves 27 and so press the shoes 19 outwards. A valve passageway 48 in the shaft 15 communicates with the grooves 27 by orifices 49, and a valve piston 50 sliding in the passageway 48 can cut off some or all of these orifices. When the roll is subjected to vibration, the vibration is damped by the passage of fluid through these orifices, the amount of damping can be varied by controlling the number of orifices available by moving the valve piston 50.
Patent GB-243768-A (GB)
Title: Improved manufacture of polymerized styrol
IPC: C08F12/08
Filed: 1924-09-15
Abstract: Vitreous products which are clear and transparent and can be cut with a knife are obtained by polymerizing mixtures containing at least 40 per cent of styrolene by heating to 135-200 DEG  C.  The mixture containing styrolene prepared as described in Specification 232,909, and preferably mixed with a substance such as trinitrobenzene or quinone to retard polymerization, is subjected to fractional distillation first at ordinary and then at reduced pressure.  The fraction obtained under reduced pressure, and containing about 50 per cent of styrolene, is polymerized by heating for 48-100 hours at 135-140 DEG  C. in an open vessel fitted with a reflux condenser. The product is purified by heating in vacuo up to 130 DEG  C., or by distillation with steam.  If the product contains high boiling constituents, these may be removed by adding a low boiling solvent such as benzol or carbon tetrachloride before heating.  The polymerized styrolene may also be separated by precipitation by adding alcohol.  Mixtures containing less than 40 per cent of styrolene may be mixed with styrolene or the vitreous polymerized product before treatment.
Patent GB-910891-A (GB)
Title: Magnetic amplifier
IPC: G05B11/01
Filed: 1959-09-07
Abstract: 910,891. Magnetic amplifiers. LANDIS & GYR A.G. Sept. 7, 1959 [Sept. 8, 1958], No. 30451/59. Class 40 (9). Two auto-self-excited full-wave rectifying transductors 8, 9, Fig. 1, operating in push-pull are supplied from a common centre-tapped transformer 4 and control a centre-zero relay 16, the relay coils being each shunted by a capacitor-resistor circuit 27, 28 from which a rate feedback is applied to positive feedback windings 25. The control windings 21 are fed through rectifier 18 from transformer 4 by a variable resistance bridge 22, 23. Preferably bias windings 17 are provided. Sufficient lack of correspondence in the bridge unbalances the output of the transductors and operates the relay 16 to start a motor 15- in such direction to restore correspondence through a drive 31 which drives the slider of potentiometer 23. The arrangement is such that within the range of control current a to - a, Fig. 3, there is an insensitivity zone in which the motor is not driven, within the control current ranges a to b and - a to - b, the motor is driven intermittently (the output voltage U having an alternating component as well as a direct component) and beyond the control current values b and - b the motor is driven continuously to balance the bridge. Rectifiers 24 limit inadmissably high voltage differences in the bridge 23. Resistors 33 remove harmonics. The capacitors 28 may be replaced by transformers to provide the rate feedback, but capacitors are preferred since they also remove harmonics from the output current.
Patent GB-747919-A (GB)
Title: Footwear lasts
Inventor: MOBBS JOHN BAKER
IPC: A43D3/02
Filed: 1953-11-05
Abstract: 747,919. Lasts. MOBBS & LEWIS, Ltd. Aug. 19, 1954 [Nov. 5, 1953], No. 30613/53. Class 17 (1). A two-part pivotally interlinked last which is resiliently urged into the straightened condition has a resilient or spring arm 11 which is pivotally engaged in one of the last parts, is disposed between a pin 10 or equivalent in the other last part and the pivotal link between the parts, and has a rounded hump 14 over which the pin 10 rides during relative movement of the last parts, such that the pin comes to rest along one or other of the inclined sides of the hump according as the last is straightened or broken. The joint between the last parts 1, 2 comprises two curved portions 3, 4, and a step 5 as shown. The parts are joined by a pair of rigid metal links 16, slotted at 17 and pivoted on pins 8, 9, with a hairpin-shaped member 11, 12 therebetween housed in slots 6, 7 in the last parts. The limb 12 is pivoted on pin 9, and the bight between limbs 11, 12 accommodates the pin 8. Alternatively the link plates 16 may be omitted and the element 11, 12 constitute the interconnecting link.
Patent GB-174454-A (GB)
Title: Improvements in and relating to apparatus for driving or extracting studs
IPC: F16B39/36
Filed: 1920-10-29
Abstract: 174,454. Howe, W. J. Oct. 29, 1920. Stud-boxes.-The sleeve 13 of a stud-box is cored internally to engage the correspondingly tapered split-nut 9, which is closed to grip the stud by means of the end pressure of a screwplug 17. The latter is screwed with threads of opposite hand to those on the stud, and may be hollow. The split-nut, which may be plain to engage the unscrewed portion of the stud, mav be feathered in the sleeve and may be recessed as shown in Fig. 3.