baber/WOPTO huggingface dataset:
Patent GB-163419-A (GB)
Title: Improvements in automatic fire alarm systems
IPC: G08B17/06
Filed: 1920-02-07
Abstract: 163,419. Evans, R. G., and Thomas, C. Feb. 7, 1920. Electric alarm systems; alarms operated by fusible devices.-Relates to automatic electric fire-alarm systems of the type comprising a normally-closed circuit containing fusible or other circuit-breakers and an electromagnetically-controlled circuit-closer, which closes a normallyopen alarm circuit when released by the operation of one or more of the circuit-breakers. The circuit closer, Fig. 2, comprises an electromagnet 34 arranged in the normally-closed circuit 8, 9 and supporting a weight 39, which, when released, falls and breaks one or more sealed glass vessels 60 containing mercury and, if desired, hydrochloric acid or the like to clean the contacts. The mercury thus released passes through a funnel 63, and causes two troughs 47 containing mercury to overflow, the mercury then bridging two contacts 49 to close the alarm circuit. The alarm circuit is tested by means of a plunger 54 acting on a flexible contact-arm 50. The circuit breaker, Fig. 6, comprises a gravity element 13, 14 secured by fusible metal 16 to contact pins 15, so as to fall away and break the circuit when the fusible metal 16 melts. In a modification, the gravity element is soldered to two cranked arms adapted to be detachably fitted into clips. The closed circuit also contains an electromagnet adapted, when the current falls below a predetermined strength, to release a contact arm and close a secondary alarm circuit.
Patent GB-1463213-A (GB)
Title: Production of methylphosphine oxides
IPC: B01J31/00
Filed: 1975-01-29
Abstract: 1463213 Preparing tertiary methyl phosphine oxides HOECHST AG 29 Jan 1975 [16 Feb 1974] 3898/75 Heading C2P Phosphine oxides of the formula are obtained by subjecting a hydroxymethyl phosphine: HOCH 2 P(R)(R<SP>1</SP>) wherein R and R<SP>1</SP> are alkyl, cycloalkyl, aralkyl or aryl radicals of up to 18 carbon atoms and which may carry inert substituents, or in which R and/or R<SP>1</SP> are -CH 2 OH groups and any R or R<SP>1</SP> which is not a CH 2 OH group has one of the other defined meanings, to a rearrangement reaction, generally at - 15 to 100 C., with the aid of a free radical-yielding compound, ultraviolet light or gamma rays. Specified free radical yielding compounds are organic peroxy compounds, organic azo compounds and organic percarbonates. The reaction is preferably effected in an inert gas, e.g. N 2 , CO 2  or argon and is suitably effected in a solvent, e.g. CHCl 3 , CH 2 Cl 2 , toluene or ethanol. Examples are given for the production of (CH 3 ) 2 P(O)CH 2 OH, (CH 3 ) 3 P(O), CH 3 P(O)(CH 2 OH) 2  and hydroxymethyl octadecyl methyl phosphine oxide.
Patent GB-881357-A (GB)
Title: A differential positioning mechanism
IPC: C25C3/26
Filed: 1960-02-04
Abstract: 881,357. Screw-and-nut gearing. BONAMINI, N. Feb. 4, 1960, No. 3975/60. Class 80 (3). A differential screw mechanism for a lead screw 5 in a machine tool comprises a screwthreaded portion A of a bush 3, mounted on the lead screw 5, located within a screw-threaded portion B of a flanged housing 1 and an annular adjusting member 2 having internal and external screw-threaded surfaces co-operating with the portions A and B respectively, the screw-threads A and B being of the same hand but of different pitch. Rotation of the bush 3 is prevented by straight splines 4 engaging the housing 1 and the lead screw 5 is located axially within the bush 3 by an adjustable collar 6 and locking collar 7. Coarse adjustment of the lead screw 5 is effected by rotation of a hand wheel 8 secured to the end thereof. Fine axial adjustment of the lead screw is effected by rotation of the member 2 by means of a sleeve 10 which can be locked to the member 2 by a knurled screw 12.
Patent GB-233451-A (GB)
Title: Improvements in bearings
IPC: F16C23/04
Filed: 1924-02-16
Abstract: 233,451. Mycock, W. Feb. 16, 1924. Cylindrical journal bearings.- The brass of a swivelling bearing for shafts, cylinders, rollers or the like has spherical seatings in a cap B<1> and in a housing B<2>, the cap and housing being secured either by bolts C, Fig. 2, having a check nut or collar c, or by bolts C<1>, C<2>, Fig. 4. As shown in Figs. 1 and 2 the brass is in halves A<1>, A<2> and has lubricating grooves a containing graphite. The brass A, Fig. 4, is in one piece and is lubricated by a chain E dipping into an oil well e.
Patent GB-628639-A (GB)
Title: Improvements in or relating to hydraulic systems
IPC: F15B21/044
Filed: 1947-02-12
Abstract: 628,639. Hydraulic systems. WATSON, C. D. Feb. 12, 1947, No. 4067. [Class 69 (ii)] [Also in Groups XXVI and XXVIII] In a hydraulic system, comprising a main pump for operating equipment, e.g. on aircraft, an auxiliary pump 10 for maintaining the pressure at the inlet of the main pump is driven by a hydraulic motor 9 which is operated by liquid circulated by the main pump and discharges to a storage tank 1 from which the auxiliary pump is fed. The motor 9 may be of the vane type and the pump 10 a gear pump of greater capacity. A cylinder 2 which contains a piston 3 whose upward movement is against a spring 4 and is limited by stops 5, is surrounded by the tank 1. The motor 9 is operated by part of the discharge of the main pump which is received through a bleed line 11 and is discharged to the tank 1 through a pipe 12 and a de-frothing screen 20. The pump 10 draws its supply from the tank 1 and discharges through a passage 22 to the space 14, which is connected to the inlet of the main pump by a passage 13. A spring-controlled valve 24 in the piston 3 is opened to pass liquid back into the tank 1 via ports 23 when the piston 3 abuts against the stops 5 and the pressure in the space 14 becomes excessive. When the piston 3 is at the bottom of its stroke, the valve 24 is opened by a tappet 25 so that the liquid above the piston can pass into the main system through a relief valve 26 leading to the line 16. In a modification, a high speed motor and pump unit are used and the whole of the return liquid is passed through the motor 9.
Patent GB-545854-A (GB)
Title: Improvements in and relating to electric discharge lamp circuits
IPC: H02M7/62
Filed: 1941-03-27
Abstract: 545,854. Electric supply circuits for discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. March 27, 1941, No. 4112. Convention date, March 30, 1940. [Classes 38 (ii) and 38 (iv)] An A.C. supply for discharge lamps for train lighting is obtained from the low voltage D.C. train batteries by means of vibrating switches 2 furnishing a square-topped wave-form which is modified by means of saturable reactances and resonant circuits to produce a wave-form shown at C in Fig. 2, while the wave-form drawn from the commutator has the shape shown at B, B<SP>1</SP> with a flat portion between 33 and 35 conducive to sparkless commutation. The primary 17 of a leakage transformer is connected across the feeders 7 which are supplied by the commutator 2 in series with a capacity 22 constituting a resonant circuit tuned to a frequency slightly higher than that of the commutator. A magnetic shunt to the flux of the primary winding is in two parts (1) which includes the slots 19 and serves to ballast the lamp, (2) the part below the slots which saturates for the greater part of the current wave traversing the primary and affects the wave-form. The lamp is connected in series with the secondary 20 across the condenser 22 with the result that it is supplied by a current of wave-form shown at C steep where is crosses the zero axis thus minimizing flicker. By connecting a non-linear shunt consisting of the saturable-core reactor 26 and the resistance 27 across the condenser, maintenance of uniform frequency of the resonant circuit and of sparkless commutation is provided for even if the D.C. applied voltage varies and if the load suddenly varies as by removal of lamps.
Patent GB-758270-A (GB)
Title: Improvements in or relating to lift trucks
Inventor: QUAYLE GEORGE FRANCIS
IPC: B62B3/065
Filed: 1954-02-12
Abstract: 758,270. Lift trucks. YALE & TOWNE MANUFACTURING CO. Feb. 12, 1954, No. 4186/54. Class 78 (3). In a pallet truck, the platform 11 is pivotally mounted on the lifting head 10 at each side by a pair of longitudinally spaced links 29, 30 extending between longitudinally spaced pivots on forward extensions of the platform and on the lifting head respectively, and means is also provided for causing the raising movement of the platform relative to the head to actuate rear wheel supporting links to raise the rear end of the platform simultaneously. As shown, the two front links 29, 30 are each formed by one arm of a bell crank and are pivoted to the front housing 10 of the truck at each side of a turntable frame 21 for supporting the steerable driven front wheel 14 of the truck. Each link 29 is pivoted on the lifting head by a stub shaft 31 while the links 30 are secured to a common transverse shaft 32. The means for raising the rear wheel 13 comprises at each side a rod 17 connected between an upwardly directed end of link 30 and a link 15 carrying the rear wheel, above its point of pivotal connection 16 to the platform. In order to raise platform 11 such that the pivots 33, 34 of links 29, 30 with the platform rise above the position of alignment with the shafts 31, 32 the other arms 35, 36 of the links are connected at 38, 39 to opposite ends of a link 37 to create a second parallelogram linkage. Actuation at each side is by a hydraulic cylinder 40 whose piston rod 42 is connected at 43 to an extension of crank arm 35. A double compression spring 46, 47 connected between the housing and a bracket 51 on longitudinal 25 assists downward movement of the platform when unloaded. An inclined series of rollers 12 is provided at the rear of platform 11 to assist movement into the gap between the floors of a double-faced pallet.
Patent GB-348180-A (GB)
Title: Improvements in grinding or abrading machines
IPC: B24B19/12
Filed: 1930-02-07
Abstract: 348,180. Grinding cams, crank shafts, &c. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Norton Co. ; New Bond Street, Worcester, Massachusetts, U.S.A.) Feb. 7, 1930, No. 4216. [Class 60.] A machine for grinding cams, crank-shafts, &c., shown as applied to grinding a number of cams on a shaft, has a grinding-wheel 13 which is adapted to be fed towards and from the work by a hand-wheel 82 the movement of which is limited by a stop 86 when the work is to size. The cam shaft 40 is carried by headstocks 32, 33 in alignment with, and driven from a shaft 41 carrying a number of equally spaced master cams 42, and the headstocks are carried by a bar 28 adapted to be rocked, under control of the cams 42 and a follower 46, about trunnions 29, 30, supported in a work table 25 movable on a bed 11 by a hand-wheel 16 and rack gearing. The cams are held up to the follower 46 and the wheel 13 by an adjustable spring 72 in a cylinder 67 pivotally mounted on the table 25, the spring acting on a rod 61 pivoted to an arm 60 connected to the bar 28. When a cam has been ground to size and the table is to be moved to position the next cam, the grinding-wheel is moved away from the work by the wheel 82, which, through gearing and a friction clutch 96, 101, 103, moves a valve 91 to admit pressure fluid to a piston 76 in the cylinder 67, the piston pressing down the rod 61 and thereby rocking the bar 28 to move the cams away from the wheel and the follower 46 respectively. During the movement of the table 25, the cam follower is moved on its shaft, to come opposite the next master cam, by the engagement of a starwheel 125 with one of a series of dogs 124 whereby it is turned one tooth, and thereby, through gearing, moves a rack 119 to move the follower; a pawl 130 prevents the star-wheel from moving more than one tooth at a time. On rotation of the wheel 82 to move the grinding-wheel up to the work, the valve 91 is moved in the opposite direction, and the cylinder 67 is opened to exhaust, whilst fluid is admitted to a cylinder 142 so as to lift a tooth 140 to engage the rack 22, whereby, during the grinding operation, the work table cannot be moved.
Patent GB-779294-A (GB)
Title: Improvements relating to fastening devices
IPC: F16B31/02
Filed: 1955-02-14
Abstract: 779,294. Bolts etc.; stud and socket fastenings. DZUS, W. Feb. 14, 1955 [April 8, 1954], No. 4320/55. Classes 44 and 89 (1). [Also in Group XXII] A device for fastening two parts, e.g. 18, 19, together, comprises a stud 12 which has means at one end for engaging one part, and a head 13 at the other end for engaging the other part, and an intermediate-section weakened by the omission of a central part of its cross-section. As shown, the stud has a coarse-pitch thread 14 for engaging a nut 11 secured to part 18 by screws 17, and the intermediate-section has a transverse-bore 23 which leaves portions 24 of the periphery intact. Thus the stud will withstand torsion during screwing up and unscrewing, but will break in shear or tension at predetermined loadings. The nut comprises a base 15 and screw-threaded body 20 having slits 21 to form fingers lockingly urged against the stud by spring 22. The centre of bore 23 preferably lies adjacent the joint between the parts 18, 19. Reference has been directed by the Comptroller to Specification 668,686.
Patent GB-140562-A (GB)
Title: Improvements in machine tools for drilling or cutting out templets
IPC: B23Q1/03
Filed: 1919-02-21
Abstract: 140,562. Pearn, W. A. Feb. 21, 1919. Drilling-machines. - A machine for producing templets comprises a transversely sliding tool-saddle d carrying the drill or other tool c, and a narrow templet-carrying bar b traversable axially of the machine and so disposed in the fixed table a that holes are not required in the templet at this position. Both saddle and carrier-bar have vernier scales for adjustment. Transverse bars of hard wood are fitted in the table under the path of the tool, so that the tools are not injured after the templet is perforated. The tool-slide and carrier-bar may be actuated by hand or power. A circular recess is provided in the centre of the table to receive a disk which is slotted to receive the carrier-bar and the transverse bars. If holes in a circular templet are required, the disk and the carrier-bar and transverse bars are removed, and a rotatable unslotted table g<1>, Fig. 7, carrying the templet is attached to the worm-wheel g<2>, which is rotated by a worm and a dividing-plate. If a circular templet is to be cut, a knife is inserted in the tool-saddle and the table is rotated by power.
Patent GB-490598-A (GB)
Title: Improvements in and relating to radio receivers and the like and more particularly the control of the same
IPC: H03G3/24
Filed: 1937-02-13
Abstract: 490,598. Valve circuits for wireless reception. CHESNEY, E. J. C. S. ST. J. Feb. 13, 1937, No. 4391. [Class 40 (v)] Changes in air speed relative to a vehicle control the volume of reproduction of a radio receiver carried thereby. As shown a U-tube 10 containing a column of mercury 12 is provided with a contact 17 at its lower bend and a contact 19 at the top of its longer limb. The inner surface of the tube is coated with resistance material, and the ends are connected to nozzles 14, 16 arranged in the slip-stream of the vehicle and adapted to increase the pressure on the mercury in the shorter limb and decrease it in the longer limb as the air speed increases. The control may be modified by varying the position of a plunger 21 and may be short circuited by a switch. The resistance controls the volume in a L.F. amplifier. The control may alternatively be effected by a wind motor and may operate to vary the tuning of a H.F. circuit of the receiver. Specification 451,387 is referred to.
Patent GB-479242-A (GB)
Title: Mangling machine
IPC: D06F63/00
Filed: 1937-02-15
Abstract: 479,242. Mangles. EGER, T. Feb. 15, 1937, No. 4563. [Class 138 (ii)] In a mangling-machine the goods are wrapped round rollers 22, 23 placed between upper and lower pressure plates 24, 8 which are reciprocated out of phase with each other. The upper plate may be raised out of contact with the rollers for positioning a fresh set of goods by means of a counterweighted plate 37 positioned beneath the upper plate out of contact therewith. The counterweights are normally held inoperative but may be unlocked manually. Alternatively the plate 24 may be raised by an electric lifting device. The plates are reciprocated by chains 28, 21 secured thereto and driven by pinions 20, 27 rotated in opposite directions from a motor 5, the direction of rotation of which is periodically reversed by a switch operated by the rotation. of one of the gear wheels.
Patent GB-1420313-A (GB)
Title: Nozzles for the injection of liquid fuel into gaseous media
IPC: F02M69/04
Filed: 1972-02-01
Abstract: 1420313 I C engine fuel injectors PLESSEY CO Ltd 27 March 1973 [1 Feb 1972 26 Feb 1972] 4609/72 and 8972/72 Heading F1B The nozzle 2, Fig. 1, or 54, Fig. 6, of an injector arrangement for injecting liquid fuel into the combustion air of a gas turbine or reciprocating engine is subjected to ultrasonic vibrations and the amount of fuel injected in a given period is varied by controlling the duration of injection in the period. The flow of fuel from the nozzle 2 or 54 is controlled by a ball-valve 15 or the nozzle 54 which is moved from its seat 14 or the end of the amplifier horn 37 due to the dynamic forces acting thereon when a Piezo-electric transducer element 6 of a stepped vibration amplifier is energized by an A.C. voltage of ultrasonic frequency and the nozzle vibrates. The valve 15 may be of ferromagnetic material, e.g. steel, or mounted on a magnetic armature to be additionally moved from its seat 14 by a D.C. energized solenoid coil 18. A plug (21), Fig. 2 (not shown), with external helical grooves (22) may be provided immediately upstream of the valve 15 to provide swirling of the fuel. The plug may be constructed and arranged as described in Specification 1389207. The nozzle may be mounted in a bore (33), Fig. 3 (not shown), in the cylinder head (31) of a diesel engine and a P.T.F.E. or nylon lift valve (41) with internal fuel passages co-operates with a seat (42) in the nozzle tip (39). A ball check-valve (45) upstream of the lift valve and biased by a common spring (43) prevents reverse fuel flow in the nozzle. The valve element at the nozzle tip may be formed by an external sleeve (57), Fig. 4 (not shown), with an annular turned-in lip (63) which engages a seat on the end of the nozzle tip. The nozzle valve element (48), Fig. 5 (not shown), may be mounted in the wall of an air induction passage (47) opposite the nozzle and be spring-biased against the end of the nozzle tip.
Patent GB-646777-A (GB)
Title: Improvements in means and method of welding
IPC: B23K35/30
Filed: 1946-02-14
Abstract: A method of making titanium available in the weld from a ferrous alloy welding rod comprises coating a ferrous alloy welding rod with a flux coating containing from 10 to 40 per cent by weight of a powdered single alloy consisting of 9-51 per cent Ti and 20-64 per cent of one or more of the elements Li, K, Sr, Ba, Ca, Na, Mg, Al and Be, the balance of the alloy, if any, being iron, and producing a ferrous alloy weld deposit by employing this coated wire as an electrode in electric arc welding.  The powdered single alloy may include 5-33 per cent Ni or up to 10 per cent Cr or up to 3 per cent each of Si, Mn and Cu.  The core wire may be one containing Cr, e.g. in the form of stainless steel, and it may p  include a proportion of Ti, e.g. 0.3-0.6 per cent, or one of the alkali or alkaline earth metals or Al.  The powdered alloy preferably has a particle size below 60 mesh per linear inch.  A weld deposit produced according to the invention may have the composition Cr 16-21 per cent, Ni 7-12 per cent, Mn 0.3-3 per cent, Si 0.3-3 per cent, Cu 0.3-3 per cent, C 0.01-0.2 per cent, at least four and one half times as much Ti as C, and the balance Fe.  The aluminium containing alloy may be made by an aluminothermic process, the aluminium content being provided by use of an excess of aluminium.  One example of a suitable aluminothermic mixture is chromiumbearing beach sand containing 41.6 per cent TiO2, 25.6 per cent Fe2O3, 14.1 per cent Cr2O3, 28 pounds, rutile 8 pounds, fluorspar 1 pound, nickel oxide 3 pounds, grained aluminium 25 pounds, aluminium pellets 13 pounds, NaNo3 9 pounds and NaClO3 5 pounds.
Patent GB-115453-A (GB)
Title: Improvements in Induction Pipes for Internal-combustion Engines.
Inventor: MCCALL CHARLES
IPC: F02D9/00
Filed: 1917-04-02
Abstract: 115,453. McCall, C. April 2, 1917. Cylinders, pipes for. - The induction pipe between the carburettor 12 and the intake manifold 15 consists of a main portion 7, and an auxiliary portion 1, the lower end 2 of which is connected to the carburettor, the upper end 3 being enlarged at 4 to receive a ball valve 6 and being connected at 14 to the intake manifold 15. The junction 10 of the conduits 1 and 7 forms a chamber in which unvaporized fuel may collect. The main conduit 7 passes diametrically across the auxiliary conduit 1 which is provided with a removable cap 11. The inlet manifold 15 is formed in one with the upper portion of the exhaust conduit 16, the partition 17 being heated by the exhaust gases. The main conduit is in action alone until the suction is sufficient to lift the valve 6.
Patent GB-702584-A (GB)
Title: Improvements relating to the lubrication of sliding surfaces of machine tools
Inventor: ASBRIDGE GEORGE HERBERT
IPC: F16C29/02
Filed: 1952-02-25
Abstract: 702,584. Machine-tool details. CHURCHILL MACHINE TOOL CO., Ltd. Jan. 7, 1953 [Feb. 25, 1952], No. 4859/52. Class 83 (3). [Also in Group XXXIV] Means for lubricating the sliding surfaces of machine tools comprise longitudinal grooves d, e, f extending nearly the full length of the table a in the sliding surfaces thereof, each groove being continuously covered by the machine bed during the operation of the machine, and means, e.g. a pump g, delivering oil under pressure into each groove until it is able to raise the table off its ways, whereupon the oil escapes and forms a film over the sliding surfaces. Each groove is preferably located midway between the edges of the bearing surface to be lubricated therefrom.
Patent GB-542918-A (GB)
Title: Improvements relating to the forming of grinding wheels for grinding vee grooves therein
IPC: B24B53/07
Filed: 1941-04-11
Abstract: 542,918. Forming grinding-wheels. CHURCHILL MACHINE TOOL CO., Ltd., and ASBRIDGE, H. H. April 11, 1941, No. 4862. [Class 60] A device for forming grooves in a grinding wheel a in which the re-action to the crushing pressure of a roller c is applied to the grinding wheel spindle a<SP>1</SP> adjacent said wheel. The roller c is mounted in a frame d connected by pivoted bolts e to a frame g having rollers h to engage the spindle a<SP>1</SP>. The frame d is angularly adjustable about a horizontal axis on a plate carried by a slide k.
Patent GB-162130-A (GB)
Title: Improvements in fishing reels
IPC: A01K89/015
Filed: 1920-02-18
Abstract: 162,130. Baker & Sons, Ltd., r., and Green, H. Feb. 18, 1920. No Patent granted (Sealing fee not paid). Reels and winches, rod.-In a fishing-reel, an attachment plate, made in two parts, secures a spring and ,a pivoted detent in position. In one form, a detent 4 is pivoted in a recess 8 to the underside of an attachment plate 5, and its sides are engaged by the ends of a spring 10 fitted in a groove 9. A cover-plate 11, which may prevent the spring 10 from coming into contact with the face of the reel cage 6, is attached, and the whole is secured to the inside face of the reel cage 6 so that the detent 4 engages a toothed wheel 3 on a spindle 1 of a drum 2.