baber/WOPTO huggingface dataset:
Patent GB-1009996-A (GB)
Title: A magnetic fastening device
IPC: E05C19/16
Filed: 1962-08-17
Abstract: 1,009,996. Magnetic fasteners. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Aug. 17, 1962 [Aug. 21, 1961], No. 31643/62. Heading E2A. A magnetic fastening device for fastening a door 9 or the like to a housing 1, comprises a first permanent magnet 6 mounted on the housing and a second permanent magnet 3 mounted on the door, wherein the magnets are so arranged that the directions of magnetisation of the magnets are parallel one to the other and to the opening direction of the door and that, during the closing movement, first like poles come within mutual range of action and at the end of closing movement, opposite poles act on one another. As shown, the magnet 3 is cylindrical with annular pole-plates 4 and 5, the magnet 6 is provided with pole-plates 7, 8 and the door 9 is closed against a resilient seal 10. In another arrangement, Figs. 2 and 3 (not shown), the pole-plate 4 overlaps the pole-plate 8 and the pole-plate 7 overlaps the pole-plate 4 respectively. In further arrangements, Figs. 4 and 5 (not shown) the magnets are recessed into the door and housing respectively. In other arrangements, Figs. 7 and 8 (not shown) the magnets are in the form of plate, strip or band, which may be barium ferrite in powder form embedded in a plastics material and magnetised in the direction of its shortest dimension. The strips may be applied flat to the housing or door by sticking.
Patent GB-859489-A (GB)
Title: Improvements in and relating to modified polyethylene terephthalate
IPC: C08G63/688
Filed: 1958-10-03
Abstract: A polyethylene terephthalate is modified to give it improved dyeability by including in its molecule a minor proportion of structural units having the formula:  <FORM:0859489/IV(a)/1> where R is an alkylene radical containing 1-5 carbon atoms.  The modified polyethylene terephthalate is made by heating a mixture of ethylene glycol, a dialkyl terephthalate and a sulphone dicarboxylic ester of formula:  <FORM:0859489/IV(a)/2> (where R1 is an alkyl radical) at 100 DEG -200 DEG C. to effect ester interchange and then polymerizing the resulting glycol esters by heating at 200 DEG -300 DEG C. Catalysts for the reaction are calcium, sodium, magnesium acetate, dibutyl tin oxide, tributyl tin hydroxide, dilauryl tin oxide, dibutyl tin dichloride or the borate, salicylate, benzoate, carbonate or acetate of lead. Examples describe the manufacture of modified polyethylene terephthalates from ethylene glycol, dimethyl terephthalate and either dimethyl 4, 41-[sulphonylbis-(trimethylene)] dibenzoate or dimethyl 4, 41-sulphonylditoluate. Specification 578,079 is referred to.ALSO:Diesters of formula : <FORM:0859489/IV(b)/1> where R is an alkylene radical containing 1-5 carbon atoms and R1 is an alkyl radical which forms an alcohol boiling at below about 200 DEG  C. are made by the following series of reactions :-(1) An aralkyl chloride of formula Cl R C6 H5 is reacted with acetyl chloride in the presence of aluminium chloride as a catalyst and carbon disulphide as the reaction medium to give (2) the corresponding acetophenone of formula Cl R C6H4CO CH3 which is oxidised with alkaline hyporbromite solution and acidified with hydrochloric acid to give (3) the corresponding benzoic acid of formula Cl R C6H4 COOH which is reacted with sodium sulphide to form (4) the 4, 41-(thiodialkylene) dibenzoic acid of formula HOOC C6H4RSR C6H4COOH which is oxidised with peracetic acid to give (5) the sulphonyl dibenzoic acid formula HOOC C6H4R SO2 R C6 H4COOH which is esterified with an alcohol of formula R1OH to give (6) the desired product.  The diesters are used to modify polyethylene terephthalate, (see Group IV(a)).
Patent GB-160272-A (GB)
Title: Improvements in buffer devices for railway, tramway and the like vehicles
IPC: B61G9/12
Filed: 1919-12-17
Abstract: 160,272. Orell, S. G. H. Dec. 17, 1919. Combined buffer and draw - gear. - In buffer devices in which a central forked frame is pivoted upon the vehicle so as to be capable of swinging in an horizontal plane, the impact surfaces carried at adjacent extremities of the forked frames are formed tu interengage so as to obviate relative sideways displacement of the buffers. Forks 1, Fig. 2, carrying conically salient and reentrant buffer surfaces 2, 3 are mounted on draw-bars 4 which pass freely through bridge pieces 5 working on vertical pivots 6, a spring 8 being disposed between a ring 20 bearing on the bridge piece and the extremity of the fork. In a modification, Fig. 3, the spring 8 hears against a washer 11 adjacent to a sleeve 15 slidable on the drawbar 4 and carried by the rear of the fork. The washer 11 is linked by sliding rods 12 to the pivots 6 on which the bridge-piece 5 works, a sleeve 14<1> transmitting the pressure or the spring to the bridge-piece and also to a shoulder 14 formed on the end of a forked knuckle fixed on the draw-bar and attached to the central connecting-rod below the vehicle. With this arrangement, on buffer action taking place, the buffer device alone moves towards the vehicle against the action of the spring and on pulling action, the coupling-device either alone or together with the buffer device moves away from the vehicle. In a further modification, the fork 1, Fig. 8, pivots at 21 on a rod 23 on which is threaded a spring 8 which presses rings 24, 25 against shoulders 26, 27 on guides 22; the fork is provided with a rigid extension 28 to which the connecting-rod is attached. The buffer surfaces may be spherical, cylindrical, or wedge-shaped so as to permit relative vertical movement.
Patent GB-338684-A (GB)
Title: Improvements in steam boiler furnaces
IPC: F23M5/08
Filed: 1929-10-18
Abstract: 338,684. Babcock & Wilcox, Ltd., (Fuller-Lehigh Co.). Oct. 18, 1929. Mud drums; tubes, water. - The parts of the mud drum and watertubes of a steam boiler exposed to intense heat are protected by refractory material which is anchored to the mud drum 15 and tubes 16 by means of tapered studs 5.
Patent GB-341134-A (GB)
Title: Improvements relating to ventilators, windows, shutters or the like
IPC: E06B7/06
Filed: 1929-10-19
Abstract: 341,134. Regulators for windows and ventilators. HOPKINS, E. M., Crofty, Penclawdd, Llanrhidian Higher, Gower, Glamorgan. Oct. 19, 1929, No. 31847. [Classes 20 (iii) and 137.] A ventilator is operated by a thermostat employing an expansible liquid and provided with means for adjusting the initial setting of the ventilator. A coiled copper pipe 1 is secured to the wall and is connected to a cylinder 2 having a plunger 3 pivoted at 5 to a link 6 carrying a pin 8 moving in a slot 9 upon the ventilator. One side of the slot 9 is serrated (or both sides according to the Provisional Specification) so that the ventilator is locked against opening except by the action of the thermostat. The cylinder 2 is secured by brackets 15, 16 to a bracket 13 which is fixed to the abutment 14. The tube 1 is filled with alcohol, methylated spirit, or other suitable liquid, and the cylinder is filled with grease down to the point B. A lateral projection 18 is provided with a threaded plug 17, by adjustment of which any desired setting of the ventilator may be effected.
Patent GB-1513248-A (GB)
Title: Electro-acoustic transducers
IPC: H04R17/02
Filed: 1975-07-08
Abstract: 1513248 Electro acoustic transducers STANDARD TELEPHONES & CABLES Ltd 8 July 1975 [18 July 1974] 31848/74 Heading H4J In a microphone, particularly for a telephone set, a piezoelectric transducer feeds an N-channel MOS amplifier circuit which is arranged to be symmetrical relative its power supply. The transducer comprises a sheet of polarized piezo electric material 1 having arrays of electrodes 5, 6 attached to its upper and lower surfaces and which is attached to a flexible diaphragm. The transducer 31 (Fig. 3) is connected to an amplifier including MOSFET's 32, 33, 34 which are formed in a semiconductor chip by an ion implantation process. Extra output is provided by forming the transducer with arrays of electrodes, 5, 6, each electrode overlapping pairs of the opposed electrodes, to connect the electrode gaps in series, so the outputs add.
Patent GB-603334-A (GB)
Title: A new or improved collapsible chair
IPC: A47C4/48
Filed: 1945-11-27
Abstract: 603,334. Seats. LAMB, C. H. Nov. 27, 1945, No. 31952. [Class 52(ii)] In a collapsable deck chair of the type in which the frame includes a pair of interconnected channel-section uprights into which the remainder of the chair may be folded the channel uprights a are interconnected laterally by two-part links e, f each connected at its ends to the uprights a and intermediately pivoted together,each link having a bracket g firmly secured to one part and pivoted to the other, the members b, c are pivoted together at j the members being of channel section of such dimensions as to permit both members to fold into the channel section of the upright a. Each member c is pivoted at h to the upright a while the upper end of each member b is provided with pivoted link d having a hook adapted to enter a selected slot l in each upright a. The flexible seat and back m is secured at one end to a board housed in a channel p provided with hooks q adapted to engage pins r while the other end is secured to a socket t adapted to engage the tapered end u of each member c.
Patent GB-217938-A (GB)
Title: Two-stroke cycle internal combustion engine
IPC: F02B33/00
Filed: 1923-06-06
Abstract: 217,938. Keith, W. F., and Keith, J. A. June 6, 1923. Valves; valve gear.-The charging-pump surrounds the power cylinder and is formed by a reciprocating cylinder 5 which works over pistons 2, 4 projecting from the power cylinder. For a double-acting engine, the pump cylinder is divided by a web 8. On this web is carried a delivery valve 10 with a hollow stem. The pump is driven by eccentrics 11, 12 on the crank shaft and slightly behind the main crank. The lower pump chamber delivers through the hollow stem 9 of the valve.
Patent GB-719361-A (GB)
Title: Improvements in or relating to railway rail fastenings
IPC: E01B9/46
Filed: 1952-12-17
Abstract: 719,361. Railway rail fastenings. RIEDENER, F. Dec. 17, 1952, [Jan. 15, 1952.] No. 32047/52. Class 104 (2) In a railway rail fastening in which the rail base A is guided between ribs 2 of a support i and is held down by clamps 12 bridging the ribs 2 with one leg 13 bearing on the base A and the other leg 14 on the support 1 and bolts 9 extending upwardly from the support i the bearing surface 8a of the bolt 9 and the bearing surfaces 13a and 15a of the clamp legs 13, 14 are rounded about an axis parallel to the longitudinal axis of the rails. The surface 8a may also be rounded about an axis perpendicular to the longitudinal axis of the rail to allow lengthwise flexion of the rail. The distance between the bolt axis and the surface 15a is greater than the distance between the surface 13a and the bolt axis. The lengths of the arms 13, 14 are such that the top of the clamp 12 is initially inclined downwardly away from the rail. The surface 15a may be located in a similarly rounded recess formed in the support 1. The bolt nut 10 is locked by means of a spring washer 11 provided with a downwardly offset extension 11a which bears against the side wall of the clamp 12. The portion of the shank of the bolt 9 disposed between the ribs 2 may be of square section to prevent excessive canting.
Patent GB-686665-A (GB)
Title: Improvements in or relating to methods for assembling two or more elements
IPC: E04B1/61
Filed: 1948-12-10
Abstract: 686,665. Furniture joints. LAMBERT, H. J. M., and MONGIN, G. P. Dec. 10, 1948 [Dec. 15, 1947], No. 32048/48. Class 52(ii) [Also in Groups X, XVII and XXV] Two elements, 1, 2, Fig. 3, are connected by providing one element with a number of tenons 3 and the other element with a number of mortices 4, providing apertures 5 in all or a group of the projections so that the apertures lie on a linear or curved axis, similarly providing apertures 6 in the other element and locking the joined elements with a pin 11 through the aligned apertures..The walls 16 of the apertures 5 may be offset from the corresponding wall of the apertures 6, the projections 3 having sufficient resilience to allow the walls to be forced into alignment by wedge-action of the pin 11. The pin may.or may not be removable. A waterproof binder may be inserted in the interstices of the joint. In the modification shown in Fig. 12, the projections 3, made e.g. of metal, are deformable by the pin 11 to fill the specially shaped cavities 4. In the modification shown in Fig. 15, the projections 3 are formed from sheet metal as separate members. They are provided with stirrupshaped portions 7 providing the apertures whereby they may be locked to the members 1 and 2 by means of pins 35 and 11.
Patent GB-302482-A (GB)
Title: Improved container for radio receiving apparatus
IPC: H04B1/08
Filed: 1927-11-29
Abstract: 302,482. Deason, R. Nov. 29, 1927. Condensers.-The metallic casing of a wireless receiver or like instrument is utilized as one element of one or more fixed or variable condensers. The wireless receiver shown in section in Fig. 3 comprises a metal casing with a plane front a integral with a curved roof c, and with a removable back g. One variable condenser is formed by the casing as one electrode, and the pivoted plate l<3> as the other, separated by an insulating plate P. The plate l<3> is adjusted on its pivot l<4>, to vary the capacity, by a screwed spindle l<6> engaging a nut l<7>. A spring l<5> tends to keep the electrodes apart. A similar variable condenser is formed by a fixed plate m<3>, and a pivoted plate m<5> adjusted by a spindle m<7>, both plates being curved to correspond with the curved roof c of the casing. The fixed plate m<3> may be separated from the casing c by an insulating plate m<2>, thus forming a further condenser of fixed capacity. Other condensers of fixed capacity may be similarly formed on the sides of the casing. The metal casing may be enclosed in an outer cover of wood or other insulating material. The first Provisional Specification describes a receiver in which the movable plate of the condenser is flexibly mounted on the insulating base.
Patent GB-1351227-A (GB)
Title: Mooring method and apparatus therefor
IPC: G01F23/38
Filed: 1971-07-08
Abstract: 1351227 Mooring ships SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 8 July 1971 [10 July 1970] 32161/71 Heading B7S [Also in Division G1] A single point mooring system includes a buoy 1, a cable 3, a dynamometer 7 for measuring the tension in the cable and a wireless transmitter 8 for transmitting the measured tension to a receiver 10 on the ship or the shore whereby the ship may be disconnected from the mooring system if the tension exceeds a predetermined value. The transmitter 8 may be switched on remotely by a wireless signal, and may be switched off automatically after a given period by a time switch. If the single point mooring system includes more than one cable 3, each cable is provided with a dynamometer 7.
Patent GB-304751-A (GB)
Title: Improvements in and relating to valves
IPC: F16K15/02
Filed: 1928-11-05
Abstract: 304,751. Junkers, H. Jan. 26, 1928, [Convention date]. Check lift valves; safety valves.-A non - return valve particularly adapted for use in the air supply pipes to carburettors for internal combustion engines used on air-craft, has a cap-like valve member 8 adapted to engage, when the valve is open, with a fixed member 12, and form a stream line body which tapers out in the direction of flow. The vertical depth of the cap is small in comparison with the total length of the stream line body and has a diameter smaller than the greatest diameter of the fixed member. The valve member slides on a fixed pin 10 and may be loaded by a spring 17. Ports 16 are provided in the fixed member to admit outlet pressure to the back of the valve. A second spring loaded relief valve opening in the opposite direction may be arranged to seat on the valve 8. A valve of the first mentioned type may be inserted between the supercharger and the carburettor while one of the second mentioned type is inserted in the pipe leading to the atmosphere.
Patent GB-1471369-A (GB)
Title: Taximeter
IPC: G07B13/00
Filed: 1974-07-19
Abstract: 1471369 Taximeter YAZAKI SOGYO KK 19 July 1974 [19 July 1973] 32212/74 Heading G4T A taximeter comprises a plurality of signal generating means generating signals A, B, C representing information required for the business management of a taxi; a plurality of storage means 34, 35, 36, 38 for storing this information; a display device 13, and a selecting means 14 for selectively displaying the information stored. The signal "A" represents a number of " business runs "; it is generated by the manual operation of tariff buttons (not shown) to record a change between " vacant " and " hired " states. Signal C records " distance run " by the taxi: a distance pulse is generated by conventional means (e.g. a magnet bearing disc and reed switch) and fed into a timedistance pulse selecting circuit to give a " distance run " signal. Signal " B " records the number of " additional runs ", i.e. tariff units; this is achieved by a circuit (not shown) composed of a pre-set counter which receives the " distance run " signal C and generates a tariff unit pulse each time the set or " base " distance (which may be varied by an " increase base fare " tariff button) is covered. A " business distance run " signal is achieved by combining the " hire " state of signal " A " with the " distance run " signal " C " at an AND gate 37. The embodiment further provides an auxiliary power supply (not shown) which keeps the storage means energized in the event of, e.g. battery failure. This supply comprises an electric cell arranged to be charged by the main (battery) supply via a first diode (to prevent reverse flow) and is connected to the main supply via a voltage stabilizer circuit and to the storing means which are binary counters via a second diode (to prevent overload). The two diodes have common cathodes and a resistance is placed between the first and the cell. Finally, an alternative selection means (not shown) includes a scanning device whereby the contents of the stores may be automatically and successively displayed. Reference has been directed by the Comptroller to Specification 1,392,469.
Patent GB-175080-A (GB)
Title: Improvements in money boxes
IPC: G07F17/10
Filed: 1920-11-16
Abstract: 175,080. King, H. F. Nov. 16, 1920. Money, boxes specially designed for; collecting- boxes.-Relates to money-boxes of the kind in which a coin, inserted through a slot, presses against one end of a lever so that the other end actuates a ratchet-wheel which at each revolution actuates a second ratchet-wheel having a projection which releases the box closure when a predetermined amount has been placed in the box, both wheels having numbers around their peripheries which can be viewed through openings in the box. In the arrangement shown, the lever 4 has its lower end normally clear of the first ratchet-wheel 7, which has crown teeth, and upon insertion of a coin the lever is first rocked laterally on its pivot to engage the teeth of the wheel 7 and then turned to actuate the latter. By this means illicit opening, for example, by a knife, is ordinarily prevented as the knife would simply rock the lever to and fro clear of the teeth of the wheel 7. The wheel 7 and the second ratchet-wheel 8 are formed from sheet metal. The mechanism is covered by a sheet-metal casing 19.
Patent GB-446187-A (GB)
Title: Rotary spherical valves
IPC: F16K5/06
Filed: 1934-11-09
Abstract: 446,187. Wrenches. S A U N D E R S VALVE CO., Ltd., and SAUNDERS, P, K., 5, Vettenhall Road, Wolverhampton. Nov. 9, 1934, No. 32274. [Class 61 (iii)] [See also Group XXIX] In a rotary spherical valve, a removable cover 16 or its retaining nut 16<a> has a non-circular periphery 16<b> engageable by a corresponding portion 20<a> on the valve handle 20 when the latter has been removed from the valve spindle 18.
Patent GB-1424746-A (GB)
Title: Procution of molecular sieves in particulate form
IPC: B01J2/14
Filed: 1973-07-06
Abstract: 1424746 Molecular sieves DEUTSCHE GOLD - UND SILBER - SCHEIDEANSTALT 6 July 1973 [6 July 1972] 32306/73 Heading C1A A process for the production of mechanically resistant grains with an average compressive strength of more than 5 kp. from a powdered zeolitic molecular sieve, with a water content such that it is free flowing and using silica gel as binder, wherein a molecular sieve zeolite and an unstable silica sol., whose silica particles have a BET surface of more than 150 m.<SP>2</SP>/g. and has a silica content of more than 10% by wt. comprises the simultaneous delivery of zeolite and silica sol. at different points on to the plate of a rotating plate of a granulator, the formation of a plastic mass containing silica sol. being prevented by scattering the zeolite in powder form on to the lower part of the plate and spraying the silica sol. in fine distribution on to that part of the plate when the grains formed reach their maximum velocity in rolling down the plate, and finally the grains discharged are dried and actuated. As an example, an opalescent unstable sol. with a pH of 5 is prepared from a standard clear 30% silica sol. by the addition of hydrochloric acid. This sol. is sprayed immediately in the form of a mist on to a granulatng plate while at the same time a molecular sieve zeolite with a 13% water content is scattered through a fine sieve on to the lower part of the plate from a vibrating shoot. The spherical grains formed pass repeatedly through the mist zone and repeatedly absorb silica. About 5 1. of silica sol. are consumed for every 10 ks. of zeolite. After drying at 100 C. and actuation at 300 C. the spheres have an average strength of 6À9 Kp.
Patent GB-1064435-A (GB)
Title: Pulley of variable diameter
IPC: F16H55/54
Filed: 1964-08-10
Abstract: 1,064,435. Expanding-wheel gear. H. SACKL. Aug. 10, 1964 [Aug. 22, 1963], No. 32517/64. Heading F2D. An expanding pulley comprises belt - engaging segments 3 having at one side spigots 4 slidable along radial slots 2 in a disc 1 fast with the pulley hub 1<SP>1</SP> and at the other side having threads 7 engaging spiral grooves 6 in a disc 5, release of a clamping nut 10 allowing rotation of the disc 5 on the hub 1<SP>1</SP> to effect radial movement of the segments. A stop 12 on the pulley hub 1<SP>1</SP> limits the extent to which the clamping nut 10 can be unscrewed, so that the segments 3 always remain in threaded engagement with the disc 5. A resilient pad 14, which may consist of, e.g., foamed rubber or P.T.F.E. covered by a metal sheet, separates the segments 3 from the disc 1. As shown, the segments 3 are provided on their belt-engaging surfaces with V-grooves, but these may be omitted.