baber/WOPTO huggingface dataset:
Patent GB-937311-A (GB)
Title: Improvements in or relating to electric joint boxes
Inventor: HAWKE WILLIAM
IPC: H02G15/10
Filed: 1961-02-11
Abstract: 937,311. Junction boxes. HAWKE CABLE GLANDS Ltd. Feb. 10, 1962 [Feb. 11, 1961], No. 5180/61. Class 38 (1). An electric joint box consists of an outer tubular metal body 1 which is clamped in position by washers 20 mounted on thimbles 18 screwed on to cable glands 2. The outside of each thimble 18 is threaded at 21 to enable nut 22 to axially compress washers 20 so that they expand radially and grip the body 1; but the thread 21 is of limited length to prevent over compression of the washers. Setscrews 24 may be provided in tapped holes in the body 1 to engage circumferential grooves 26 in the thimbles and these may act as earthing terminals. The body is so dimensioned that it can be passed over one of the glands while the joints are made-off and the body may be provided with screw plugs 27 to allow the inside of the body to be filled with a sealing compound after assembly.
Patent GB-415387-A (GB)
Title: Improvements in, or relating to, automatic circuit-breakers
IPC: H01H71/24
Filed: 1933-02-21
Abstract: 415,387. Automatic circuit-breakers. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. Feb. 21, 1933, No. 5247. [Class 38 (v).] A circuit-breaker has the plunger a of the overload release solenoid locally reduced in diameter at a' so that an air gap is normally introduced into the flux path, whereby displacement of the plunger is prevented or delayed until the overload is strong enough to ensure an impact on the toggle trip catch sufficient to release the toggle-lock on the contacts. The air-gap is cut out by and during the initial displacement of the plunger to accelerate the completion of its stroke. The plunger is normally located by a stop a<2> thereon engaging a guide sleeve b<1>. Specification 412,606 is referred to.
Patent GB-215863-A (GB)
Title: Improvements in or relating to moulds for the manufacture of concrete paving blocks such as kerb, channel and the like
IPC: B28B7/18
Filed: 1923-02-23
Abstract: 215,863. Low Laithes Colliery Co., Ltd., and Peace, H. Feb. 23, 1923. Moulds.-A mould for concrete paving- blocks such as kerbs, consists of a channel or U-shaped metal body A formed in one piece having strap bolts H and wing nuts W for securing the end plates B, and also an iron cross-member S for holding the sides of the body. The end plates are plain for plainended blocks, or may be adapted to form male and female joints, and may carry cores C to form ducts or hollows.
Patent GB-327514-A (GB)
Title: An improved process of preparing animal carcasses for market
IPC: A22B5/00
Filed: 1929-02-18
Abstract: 327,514. Marks, Sir G. C., (Swift & Co.). Feb. 18, 1929. Preserving meat. - The carcasses s of cattle, sheep, hogs. &c. are prepared for market by restraining the muscles into the natural relaxed position and then chilling. An example of a suitable form of apparatus which may be used ir, connection with this invention is shown in Fig. 2. The carcass A is suspended against a wooden frame such that the back-bone or spine 6 is held in a substantially straight line against the board 10; the foreshank 3 is restored to the natural position and the carcass chilled. After being chilled, the carcass may be suspended in the usual manner.
Patent GB-735589-A (GB)
Title: Improvements in or relating to bulkhead lamp housings
Inventor: COUGHTRIE JOHN ARMSTRONG
IPC: F21V19/00
Filed: 1953-02-26
Abstract: 735,589. Bulkhead lamps. COUGHTRIE, Ltd., J. & G. Feb. 26, 1954 [Feb. 26, 1953], No. 5373/53. Class 75 (4). [Also in Group XXXVI] A bulkhead lamp comprises a detachable lampholder 4 formed with a tongue 5 projecting at an angle to the axis of the holder, one face of the tongue having a recess 7, preferably of non- circular shape, engageable with an abutment 2 projecting into the interior of the lamp and provided with a clamping pin 12 adapted to be located in a longitudinal open-ended slot 6 in the end of the tongue. The pin 12 screws into the abutment 2 and a washer 13 at the head of the pin engages a circular recess in the tongue 5. The washer 13 is urged against the head of the pin by a spring 14, the other end of which abuts another washer which is a push fit on the pin.
Patent GB-564221-A (GB)
Title: Improvements in or relating to variable pitch propellers, especially for aircraft
IPC: B64C11/30
Filed: 1943-04-05
Abstract: 564,221. Electric control systems. FORSYTH, A. G. April 5, 1943, No. 5415. Convention date, June 30, 1942. [Class 38 (iv)] [Also in Groups XXXIII and XXXVII] A control arrangement for a propeller pitch-changing mechanism comprises a pair of switches 35, 35<SP>1</SP>, Fig. 2, operated by a governor 36 driven by the propeller engine, closure of one or other of these switches completing a circuit to drive a reversible electric motor 10 in one direction or the other to actuate the pitch - changing mechanism towards fine or coarse pitch respectively, the electric motor also driving separate means 48 for actuating fine and coarse pitch limit switches 38, 39 after predetermined operation of the pitchchanging mechanism. There is also provided a manually operable feathering switch 34, a feathering limit switch 40, and a manually operable switch' 37 for overriding the governor 36. In a modification, there is, in addition, a braking switch similar to the switch 34, and a braking limit switch similar to the switch 38. Fig. 1 shows two propellers 2, 3 mounted on coaxial hollow shafts 4, 5 and driven in opposite directions by two independent engines, their pitch - control gearing being operated by two reversible electric motors 10, 21, and the pitch-limit switches being disposed in housings 90, 90<SP>1</SP>. In a modification, there may be a single engine and a 'single electric motor. The switch 34 comprises a hand knob 44, Fig. 7, or a spring- urged rod 43 carrying branched members 45 to engage selectively with pairs of diagonally opposite contact studs 42. The shaft 48 carries a slidable switch block 50, Fig. 4, within a hollow support 47. The block 50 has two end projections 50<SP>1</SP>, 50<SP>11</SP> on its opposite sides to engage spring-urged contact arms 52, 521, 54<SP>1</SP> of the limit switches 38, 39, 40. The contact arm 54<SP>1</SP> is pivoted on a member 55 pivoted at 56 under the control of a spring 57 and provided with a stop 58. The Specification as open to inspection under Sect. 91 states also that the electric motors may be replaced by hydraulic motors. This subject-matter does not appear in the Specification as accepted.
Patent GB-739647-A (GB)
Title: Improvements in and relating to boilers provided with a secondary air supply
IPC: F23L9/00
Filed: 1954-02-24
Abstract: 739,647. Firebridges. BRAAMT, H. Feb. 24, 1954 [Feb. 26, 1953], No. 5419/54. Class 51 (1). Secondary air is supplied to a boiler through an air-heating metal casing 8 located behind and against the firebridge 7 and having an air inlet 10 and air outlets 17, the casing being covered at its top and rear sides with refractory material. As shown in Fig. 4, the casing is provided with a zig-zag channel 12 which is mainly situated in the part lying behind the firebridge support 6, whilst between the outlet of the channel 12 and the air outlets 17 is a grid 13 which effects a uniform distribution of preheated air over the outlets 17.
Patent GB-308432-A (GB)
Title: Improvements in and relating to magneto-electric machines
IPC: H02K21/20
Filed: 1928-02-21
Abstract: 308,432. British Thomson-Houston Co., Ltd., and Griffiths, L. Feb. 21, 1928. Magneto-electric machines.-In a magneto of the rotating magnet type, the armature coil 6, Fig. 1, is arranged with its axis parallel to the axis of the rotor and the core has poles 5 at opposite ends extending to opposite sides of the rotor; the rotor Fig. 2, comprises a magnet 1 rotatable on its longitudinal axis and has attached polar extensions 3, 4, of L-section projecting parallel with the magnet for approximately its full length. The magnet 1 is tubular and is carried on a non- magnetic shaft 2, or alternatively a solid bar magnet may be employed. The magnets shown in Figs. 1 and 2 gives two flux reversals per revolution; in the case of a magnet giving four flux reversals, each pole piece 3 is provided with extensions 4 on each side of the magnet.
Patent GB-1023104-A (GB)
Title: Improvements in corpuscular radiation instruments
IPC: H01J37/15
Filed: 1964-02-10
Abstract: 1,023,104. Electron microscopes. SIEMENS & HALSKE A.G. Feb. 10, 1964 [Feb. 15, 1963], No. 5471/64. Heading H1D. An electron microscope which can also be used as a diffraction camera has a mechanism for moving the polepieces 6, 7 of the magnetic lens 3 longitudinally out of the bore 9 and then, by a swivelling action, out of the axis 16 of the beam. The polepiece system 5 is held in a holder 12 by pins 13 which engage longitudinal slots 17 in a fixed bush 15 of the holder 12 and inner threads 19 in a surrounding rotatable bush 20 so that on rotation of the bush 20 by means of the cog wheels 34, 35 and drive 11, the polepiece system is withdrawn without turning. The drive 11 also rotates a coupling part 29 around a shaft 27, and the shaft can be brought into operative connection with the coupling part 29 to effect a swivelling movement of the shaft and of the holder 12 fixed to it by an extension 15a. A coupling part 31, fixed to the shaft 27, is engaged with the coupling part 29 by means of the lever 30. A clamp 70 prevents swivelling of the holder 12 as long as the polepiece system 5 is still within the bore 9. An observation screen 47 is allowed to swivel under the action of a spring into the path of the beam after the holder 12 has been swivelled out of the way, but the screen may be held out of the beam path even when the holder is removed. To aid in withdrawing the polepiece system against the magnetic forces of the lens, a contact switch may be provided to reduce the number of ampere-turns, different contacts being closed as the polepiece system is withdrawn and the holder moved away. With an intermediate reduction in the number of ampere turns, the lens with a clear bore 9 may provide a long focus suitable for use in the diffraction camera arrangement. A similar contact switch may be used to operate a device for the indication of the position of the polepieces or of the holder. In suggested modifications only one polepiece may be removed from the lens, or upper and lower polepiece systems may be removed by similar upper and lower mechanisms, or a single mechanism may be used for successively removing both polepiece systems.
Patent GB-608436-A (GB)
Title: Improvements in devices for guiding threads or filaments
IPC: D01D10/04
Filed: 1946-02-23
Abstract: <PICT:0608436/IV(a)/1> <PICT:0608436/IV(a)/2> In the production and/or treatment of artificial threads in which the thread is conducted in a helical path around a pair of inclined rollers, at least one of which is positively driven, which are disposed one above the other and on which the thread is subjected to successive treatments such as completion of coagulation, washing, drying and bleaching, at those parts of the traverse where the thread is wet and under only slight tension the peripheral speed of the upper roller is adapted to be greater than that of the lower roller by providing a proportionate increase in the diameter of the upper roller at those parts (Figs. 2 and 3). The thread is thereby tensioned sufficiently to maintain an even spacing of the helical loops, but insufficiently to exceed the elastic limit of the thread at that particular degree of wetness. Alternatively, if the thread is in a wet condition throughout all its traverse, then the rollers may be of the same diameter and the angular velocity of the upper roller is increased over that of the lower roller.  The proportionate increases in diameter of the upper roller are effected by varying the amount of rubber or other plastic coating applied to the roller core.  The rollers may be both cylindrical, conical, frusto-conical or stepped.
Patent GB-247022-A (GB)
Title: Improvements in re-floating apparatus for stranded vessels
IPC: B63C7/28
Filed: 1925-03-02
Abstract: 247,022. Jacobsson, C. J. March 2, 1925. Stranded ships, moving.-Apparatus for refloating stranded ships comprises cables connected to a winch or the like on the ship and to anchors placed seaward from the vessel, a member adapted to be disposed beneath the vessel and having guides arranged so as to deflect the cables downwardly so that an increase of tension therein gives rise to a lifting action, and a float on the cables adapted to rise and fall under wave action so as to vary the cable tension with more or less sudden impulses. Two cables 10, Fig. 2, attached to anchors 11 are connected to winding apparatus 12 on the vessel A. A U-shaped band 14, Fig. 3, is positioned beneath the stern of the vessel and secured by ropes 21, and the cables 10 pass through guides equipped with sheaves at the upper ends of the U-shaped member 14. The cables are deflected downwardly by the guides 20 so that the tension in the cables tends to lift the band 14 and the stern of the vessel. The floating device 15, Fig. 5, comprises a trough shaped structure having an air cylinder 19 at the top forward edge and provided with guides 16, 17 through which pass the cables 10. The device 15 is disposed with the open front towards the vessel, and is prevented from slipping along the cables by stops on the latter.
Patent GB-212906-A (GB)
Title: Improvements in or relating to couplings for lubricators
IPC: F16N21/04
Filed: 1924-03-07
Abstract: 212,906. Meyrel, M. March 17, 1923, [Convention date]. Couplings, disconnectible; with valves. - A grease gun comprises a body 3 formed with a chamber 4 at the bottom of which is provided a hooking tongue 5 and a diametrically opposed movable tongue 6 adapted to engage under a head 2 on the lubricating nipple 1. The tongue 6 is rigid with a small piston 7 provided with a packing 9 and adapted to move in the bore 8 through which the lubricant passes to the nipple 1. The bore 8 communicates with the chamber 4 through orifices 13, 14 and a pipeline 12, the orifice 13 normally being closed by the piston 7 under the action of a spring 10. In operation, the tongue 5 is engaged under the head 2, and the supply of lubricant when turned on actuates the piston 7 and tongue 6 to lock the coupling and open the orifice 13 to allow lubricant to pass to the nipple 1. Fluid-tightness between the nipple 1 and the body 3 is secured by means of a cup-leather packing 15 fitted within the chamber 4. Specification 3028/15 is referred to.
Patent GB-362256-A (GB)
Title: Improvements in vehicles adapted for transport and provided with cranes
IPC: B60P1/54
Filed: 1931-02-26
Abstract: 362,256. Road wagons. VENEZIAN, C. COHEN-, 40, Via Piffetti, Turin, Italy. Feb. 26, 1931, No. 6057. Convention date, Feb. 26, 1930. [Class 108 (i).] A portable crane adapted to carry bulky loads such as aeroplane parts comprises a vehicle platform having a crane pivoted over one axle, the crane frame and jib having small transverse dimensions, to allow loads to be carried under and laterally of the jib. The crane jib 4 is pivoted to a frame 3 rotatably mounted on the vehicle platform 1 over the axle of one pair of wheels 2 and formed of plates secured together and not exceeding in width the width of the jib. Receptacles 12 are centrally mounted on the vehicle platform and loads can be placed on the unoccupied parts of the platform and retained by bars 16 inserted in sockets 15 in the platform.
Patent GB-1443844-A (GB)
Title: Device for use in checking the aim of a headlight of a  vehicle
IPC: F21S8/10
Filed: 1974-02-11
Abstract: 1443844 Aiming vehicle headlights NISSAN MOTOR CO Ltd 11 Feb 1974 [19 Feb 1973] 06085/74 Heading G2J A vehicle headlight aiming device 11 which may be detachably mounted over a headlight, comprises a mirror 22 mounted at one end of a rigid housing 20 which defines at its other end a cavity 21 within which is provided, a suction cap 23 by means of which the reflector is positioned on the headlight. A source of light directs a beam on to the mirror 22, and a target is positioned to receive the reflected beam, the position of the headlight being adjustable until the reflected beam meets the target at the required point. Two such systems are provided for simultaneous alignment of both headlights of a vehicle. The light sources are mounted above and clear of the vehicle, while the targets are positioned on or below the floor-level, or vice versa.
Patent GB-525592-A (GB)
Title: Improvements in or relating to electric switches for alternating current circuits
IPC: H01H9/38
Filed: 1939-02-24
Abstract: 525,592. Tumbler switches; arc-rupturing in switches. SCHOLES & CO., Ltd., G. H., SCHOLES, G. H., and PEARCE, F. J. Feb. 24, 1939, No. 6130. [Class 38 (v)] A tumbler switch forming part of a combined switch and socket coupling, Figs. 1, 2 (not shown), comprises a contact strip 20 urged against fixed contacts 14, 15, by one or a pair of springs 21, 21a When the dolly 22a is rotated to the position shown, two short breaks are produced by. the engagement of the nose 22b with the contact 20 about midway between the springs, further movement causing the end 20b to increase its gap for isolation purposes, whereas the gap at 20a diminishes. In the fully-open position, the nose is over or beyond the spring 21a and the end 20a is reclosed. Where a single spring only is employed, the initial engagement of 22b is immediately over the spring. Specifications 499,043 and 514,202 are referred to.
Patent GB-981225-A (GB)
Title: Improvements in and relating to main drives for the translatorily displaceable work spindle of machine tools
IPC: F16F15/10
Filed: 1961-02-21
Abstract: 981,225. Belt gearing; variable-ratio gearing. DIXI S.A. Feb. 21, 1961 [Sept. 5, 1960], No. 6249/61. Headings F2D and F2Q. [Also in Division B3] A drive from an electric motor 7 to a shaft 4 of an horizontal milling and boring machine comprises two co-operating belt drives 6, 5 arranged in series along two pivoted arms 8, 9 the arm 9 being adjustable in length by means of a screw sleeve 16 in order to vary the belt tension and hence to vary the natural frequency of vibration of the drive system. The shaft 4 is mounted in a spindle head 1 which is adapted to slide in a guide way 2 in the machine frame 3. The spindle head weight may be balanced by a spring 31 or by means provided within the machine frame 3. The shaft 4 is connected to a work spindle through two-speed toothed gearing, Fig. 4, and a torsionally resilient coupling 50 comprising coupling halves 50<SP>1</SP>, 50<SP>11</SP>, connected by pins 52 in rubber sleeves 53, the part 50<SP>1</SP> being coupled to a hollow shaft 44 by key 48. In a modification, pivoted links 32, 33 and a spring 31 are arranged as shown in Fig. 6. The two-speed gear comprises a double lever 56 which may be swung in one direction to engage dogs 35 on a pinion 34 with dogs 42 on a spur gear 41, for direct drive, and in the other direction to mesh pinion 34 with a spur gear 36 on an intermediate shaft 37 and to mesh a pinion 40 on shaft 37 with spur gear 41 for low speed drive.
Patent GB-256147-A (GB)
Title: Improvements in and relating to piston constructions
IPC: F16J1/04
Filed: 1926-03-08
Abstract: 256,147. Kangieser, H. F. March 8, 1926. Pistons.-The piston wall is formed in separate sections 17, the adjacent edges of which are inclined both to the vertical plane and to the radii. These sections terminate in inturned flanges 23 and upstanding portions 18 which are secured to filler blocks 9, 12 with chamfered ends, these ends being staggered in relation to the meeting edges of the piston sections. The flanges 23 and blocks 9, 12 are received in a groove between flanges 6, 7 of the piston head. Expansion rings 27, 28 force the piston sections outwards.
Patent GB-293667-A (GB)
Title: An improved method of manufacturing gramophone records
IPC: B29C43/02
Filed: 1928-03-01
Abstract: 293,667. Goodson, J. March 1, 1328. Record.-Relates to gramophone records of the kind in which the sound-grooves are superimposed on a design, advertisement, or the like upon the record surface. According to the invention, the design &c. is applied to a record blank by suitable means such as an hydraulic press, and the blank is then subjected to heat and pressure, prior to the formation of sound-grooves thereon. By this means, removal of ink forming the design by the sound record matrix is prevented, the design being indelibly impressed into tne blank. The records are preferably thin flexible discs.
Patent GB-557387-A (GB)
Title: Improvements in or relating to fourdrinier paper-making machines
IPC: D21F7/00
Filed: 1942-05-13
Abstract: 557,387. Fourdrinier paper-making machines. PARFITT, A. W. (Pusey & Jones Corporation). May 13, 1942, No. 6480. [Class 96] To change the wire-cloth 16 of a Fourdrinier paper-making machine a carriage C comprising longitudinal beams and transverse beams 20 is moved out from under the machine into the aisle, pivoted tracks 21 are swung horizontally aside, the lower run of the wire 16 inserted in recesses in the beams 20, the upper run draped over poles 62 and the carriage returned. The poles 62 are removed and the tracks 21 again swung aside to allow the wire to be placed in the operative position. The suction pipes &c. and driving arrangements are on the side of the machine permanently supported by pedestals 17, the other side preferably being permanently supported on the carriage C by rollers 23 which roll on the tracks 21 when the carriage is run out. The poles 62 are supported at one end at 61, 63 and at the other by feet 64 which slide over the table rolls or suction boxes. Pairs of brackets support wire-carrying poles at the breast roll and couch roll ends of the carriage C, the breast roll being moved under the table during wire-changing, and the couch roll having a temporary cantilever support. A cat-walk 66 is provided. The invention is applicable to Fourdrinier machines of variable pitch, e.g. wherin the main frame is pivoted at the breast roll end, and the couch roll end raised by jacks.
Patent GB-1138909-A (GB)
Title: Data transfer systems
IPC: H04N3/185
Filed: 1967-02-10
Abstract: 1,138,909. Data transmission systems. INTERNATIONAL STANDARD ELECTRIC CORP. 10 Feb., 1967 [16 Feb., 1966], No. 6514/67. Heading H4P. In a digital transmission system a carrier is modulated in amplitude, frequency and phase to represent a group of n digits. The embodiment described employs a 4-bit group. One of two frequencies is selected corresponding to the first bit. The selected frequency passes to a circuit which generates four signals differing in phase, and the second and third bits select one of these four signals. The selected signal is modulated in amplitude by the fourth bit and transmitted. At the receiver the signal passes to amplitude, frequency and phase discriminators whose outputs are gated to reconstruct the original 4-bit group.
Patent GB-344650-A (GB)
Title: Improved construction of apparatus for holding mirrors, windows and the like in adjusted positions
IPC: A47G1/24
Filed: 1930-02-27
Abstract: 344,650. Stays. WARSHAWER, N., 321, Old Street,London. Feb. 27,1930, No. 6519. [Class 65 (i).] Stays for holding swing mirrors &c. in adjusted positions comprises a plate A secured to the mirror B and provided with a post A<1> carrying a pivoted lever C having a fingerplate C2 at one end and bent downwards at C<4>, this end engaging a straight or curved strip or plate F secured to the frame E. A spring D is arranged between the lever C and the plate A.