baber/WOPTO huggingface dataset:
Patent GB-615300-A (GB)
Title: Improvements in towel rails or clothes airers
IPC: A47K10/10
Filed: 1946-10-31
Abstract: 615,300. Towel rails. BARREL BOLT & COOL CO., Ltd., and HITCHCOCK, S. I. Oct. 31, 1946, No. 32414. [Class 52 (v)]- [Also in Group XXV] A swinging towel rail 1 mounted in a wall bracket 3 has its bend down end 2 formed with an annular groove 10, the material of the bracket being pressed inwardly to enter the groove to prevent the rail being withdrawn from the bracket. The bracket 3 may be longitudinally divided down the back.
Patent GB-618905-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28D7/16
Filed: 1946-11-01
Abstract: 618,905. Making heat-exchangers. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and CONSTANT, H. Nov. 1, 1946, No. 32491. [Classes 83 (i), 83 (ii) and 83 (iv)] [Also in Group XIII] Powder metallurgy.-A tubular heatexchanger has end plates made by compacting metal powder in a die and then sintering to form a coherent sheet and to weld the sheet to the ends of the tubes. A layer of powdered metal is pressed between upper and lower dies 5 and 6 which are drilled to receive core pins 7 carried by a member 10. After compacting the member 10 is lowered to withdraw the cores, the die 5 is retracted and the die 6 raised to eject the compact. The tubes 1 of the exchanger are held in a suitable jig with their ends inserted in the holes in the compact formed by the cores 7 and the compact is then sintered. In a modification, the tubes are held in position in the die and the metal powder is compacted around them. The tubes may be internally supported by wires during the compacting and sintering or alternatively short plugs are arranged in the ends of the tubes and are removed by machining the face of the end plate after sintering. The heat-exchanger is intended more particularly for use in aircraft and the tubes are of relatively small diameter, standard hypodermic injection tubes or other tubes of similar diameter being used. During the pressing of the metal powder, the edges of the compact are supported by a member 4 arranged in a floating holder 11 adapted to move downwardly as the upper die 5 descends. Casting composite articles.-The Provisional Specification describes also a method of making the heat-exchanger by plugging the ends of the tubes, assembling them in a jig and then casting on an end plate. The outer face of the plate together with the end portions of the tubes containing the wire plugs are removed by machining.
Patent GB-213311-A (GB)
Title: Improvements in or relating to sound recording and reproducing machines
IPC: G11B17/02
Filed: 1922-11-28
Abstract: 213,311. Rogers, H. A. Nov. 28, 1922. Ball bearings.-The spindle 25 of a centrifugal governor for a gramophone, &c. is mounted between balls 28 carried in the cupped ends of longitudinally-adjustable rods 29. The balls 28 may each carry a set of ball bearings with which the corresponding end of the spindle 25 engages.
Patent GB-1167637-A (GB)
Title: Improvements relating to Bracelets
Inventor: CALDICOTT RAYMOND
IPC: A44C5/20
Filed: 1967-07-14
Abstract: 1,167,637. Bracelets. B R A C E L O N (BIRMINGHAM) Ltd. 14 July, 1967, No. 32521/67. Heading ASH. [Also in Division E2] A bracelet comprises two hinged parts 10, 11, the free end of one has a spigot 19 which is engageable with and disengageable from a socket 21 at the free end of the other parts by sideways resilient deformation of the parts.
Patent GB-1413546-A (GB)
Title: Connecting elements for connecting together construction members
IPC: A47B47/00
Filed: 1973-07-09
Abstract: 1413546 Toy building kits A STRASSLE 9. July 1973 32535/73 Heading A6S [Also in Division F2] A connecting element for a toy building kit and used to interconnect sheets or panels having planar edges consists of a substantially spherical member having slots such as 1, 2, 3, 4, 4' arranged symmetrically with reference to three planes any two of which are at right angles to one another, there being eight slots arranged symmetrically with respect to the line of intersection of two of the planes and on each side of the remaining plane a further four slots being arranged in pairs parallel to each of the two intersecting planes. The element and panels may be made of plastics material.
Patent GB-406432-A (GB)
Title: Improvements in or relating to rubber stamps
IPC: B41K1/02
Filed: 1932-11-17
Abstract: 406,432. Hand-stamps. CLIFTON, E., JONES, CLIFTON, & CO., Ltd., W., 7, Plough Court, Fetter Lane, London, and RAMSDEN, C., 159, Oldchurch Road, Romford, Essex. Nov. 17, 1932, No. 32561. [Class 100 (ii).] In hand-stamps of the kind wherein a rubber die provided with a sponge rubber backing is attached to a metal plate or holder fixed to a handle, the rubber portion of the stamp is mounted in a box-like metal housing, the cushion being held on all sides by the walls of the housing against lateral or endwise displacement. In one form, the sponge backing 4 of a die 3, Fig. 1, is seated in a rectangular box 1 having vertical sides 2, the backing being secured by adhesive to the top inner surface of the box. In other forms : (1) the walls 2 are undercut, the cushion 4 being dovetail in section and forced into position ; (2) the walls are splayed outwardly and a cushion of corresponding shape is secured by adhesive to the top and side surfaces of the housing. Further, projecting lugs may be formed on the lower edges of the longer sides of the walls to assist in retaining the cushion in position.
Patent GB-1090632-A (GB)
Title: Nuclear reactor control mechanism
Inventor: KNIGHTS HERBERT CHILVERS
IPC: G21C7/12
Filed: 1963-08-16
Abstract: 1,090,632. Reactor control rods. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. July 30, 1964 [Aug. 16, 1963 (2)], Nos. 32591/63 and 32592/63. Heading G6C. In a nuclear reactor control mechanism having a neutron absorbing body movable relative to the core by means of a flexible tie between it and the winch, the control rod is spring biased towards its active position, and withdrawn from this position, against the spring, by the winch and tie. The control unit is an integral structure housed in a casing 115 (Fig. 1), and retained in a standpipe 113 by balls 117. The unit contains a shield plug 120 penetrated by leads 119 for an electric motor 121, which drives a winch 122 to raise the safety rod 124 through chain or cable 127, against pressure from the spring 125. After initial insertion of the unit in the standpipe, the motor is energized to withdraw the safety rod 124 to its normal position within the casing 115. In an emergency, a clutch 123, between the winch and motor, is released, allowing the spring to force the safety rod into the core 111. Alternative drives.-In a first modification, the clutch and motor are replaced by two hydraulically actuated pawls which engage a ratchet wheel on the cable drum. One of the pawls allows winding-in rotation and prevents unwind of the drum. The other pawl is reciprocated, to wind the drum. For emergency shutdown, the first pawl is hydraulically withdrawn from the ratchet wheel, thus allowing the spring 125 to forcibly insert the safety rod. The second modification allows the associated rod to be used for normal reactivity control and for emergency shutdown. Wind-in is achieved as previously described, but a further hydraulic piston and cylinder unit actuates two pawls, each engaging a separate ratchet wheel, so as to allow tooth-by-tooth re-insertion of the control rod. A third hydraulic unit withdraws the pawls to enable the spring to rapidly insert the control rod.
Patent GB-1033927-A (GB)
Title: Improvements in or relating to electromagnetic relays
Inventor: FRYDMAN EMANUEL
IPC: H01H51/28
Filed: 1962-08-24
Abstract: 1,033,927. Electromagnetic relays. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Aug. 16, 1963 [Aug. 24, 1962], No. 32596/62. Heading H2B. A diametrically polarised disc-shaped permanent magnet 29 mounted alongside a sealed magnetic contact unit 23 of an electromagnetic relay is rotatably adjustable to vary the biasing effect on the unit. The magnet may be adjusted to produce a normally closed unit or a magnetically held unit i.e. a unit which is retained closed after de-energization. In the arrangement shown two contact units and their associated biasing magnets are mounted one on each side of core 10, 11, 12. Both contact units are secured in position by clamping plates 26, 27 which are retained by deforming the vertical limbs 10, 11 of the core. The units rest on resilient pads 20, 21 provided on an insulating strip 17 mounted on the top of the formers of windings 14, 15. The magnets, such as 29, are adjustably secured in two clips 30, 31 which are drawn together by a bolt 32. The lower clip 30 abuts the undersurface of the strip 17 and the upper clip 31 engages the envelopes of the contact units. Adjustment is effected by loosening bolt 32 and rotating the magnets. If one of the magnets is removed a relay having normally open and normally closed contacts is provided. The two windings may be energized together, or in the case of the magnetically held contact unit, alternately, one to open and one to close the unit. The magnets may be made of barium ferrite.
Patent GB-501380-A (GB)
Title: Improvements in or relating to electric remote control devices for power plants comprising prime mover and change speed gearing means driven thereby
IPC: H02P9/06
Filed: 1937-11-26
Abstract: 501,380. Electric control systems. SCHWEIZERISCHE LOKOMOTIV-UND MASCHINENFABRIK. Nov. 26, 1937, No. 32651. Convention date, Nov. 27, 1936. [Class 40 (i)] In a system for controlling the speed of a prime mover, e.g. a Diesel engine, through a gear-change mechanism, gear selection and speed control are effected electrically by a single controller. As shown, the Diesel motor M is subject to speed variation under the control of electro-pneumatic valves P1 ... P4 connected over independent line wires to groups of contacts 1 ... 4 in a series of contacts a on the controller. A pressure-operated gear-change mechanism G which may be of the type described in Specification 207,318, [Class 80 (ii)], is controlled selectively by valves VI ... VV over wires n oonnected to contacts KI ... KV on the controller. Manually-operated brushes Fa, Fb co-operate with the series a, b and the arrangement is such that speed control may,be effected by the valves P<1> ... P4 over a range of movement of the controller corresponding to any selected gear of the mechanism G. Valves J which control the oil pressure in the gear-box during starting, are selectively operated by valves VA1, VA2, controlled by a brush Fc and contacts KA1, KA2. A brake may also be controlled by reverse movement of the controller from its normal inoperative position. Additional controllers may be connected to the system by branch leads, e.g. H1. Specifications 450,560 and 499,606, [both in Group XXIX], also are referred to.
Patent GB-1085839-A (GB)
Title: Improvements in display signs
Inventor: BEACHAM JOSEPH FREDERICK
IPC: G09F19/14
Filed: 1963-08-20
Abstract: 1,085,839. Two-way signs. PARNALL & SONS Ltd. Aug. 13, 1964 [Aug. 20, 1963], No. 32826/63. Heading G5C. Two pictures are carried by alternate strips 6, 7, of a corrugated sheet, which respectively face in directions (3, 4), so that each picture is visible from one point of view only (Figs. 3, 4, not shown). Strips may be flat or concave as in Fig. 2 (not shown). Fig. 5 (not shown) illustrates an additional flat character (P) which will be seen as part of both pictures. The sign is made by printing the two pictures in intercalated strips on a flat thermoplastic sheet, and then heat forming the sheet so that alternate strips face in different directions. Finally the edges 10, 11 are folded in to improve rigidity.
Patent GB-878819-A (GB)
Title: Improvements in or relating to oriented steel sheets or the like
IPC: C21D8/12
Filed: 1959-09-28
Abstract: Grain oriented silicon steel strip is prepared from hot rolled strip 0.075 to 0.120 inches thick and consists of 2.2-5.25% silicon, 0.001-0.05% of at least one material selected from metal oxides, metal sulphides or metal nitrides, up to 0.02% carbon and remainder iron, by-(1) cold rolling to reduce by 60-80%: (2) heating at 1600-2,000 DEG C. per minute to 850-1050 DEG C. in a non-oxidizing atmosphere and retaining at said temperature long enough to effect recrystallization: (3) cold rolling to reduce by 50-60%: (4) reheating as in (2) above: (5) heating at 2-15 DEG C. a minute to 1,000-1,300 DEG C. and annealing for 1-8 hours.  Prior to cold rolling the strip may be annealed at 1,050-1,150 DEG C. for a period sufficient to produce a grain size of 1-3 mm.  The intermediate annealings (steps (2) and (4)) do not last longer than one minute. The strip may be decarburized by heating in wet hydrogen at 600-800 DEG C. before or after annealing step.
Patent GB-1466204-A (GB)
Title: Electrophoretic deposition of ductile corrosion resistant metallic coatings
IPC: B23P15/04
Filed: 1975-08-06
Abstract: 1466204 Electro-phoretic coating with metals GENERAL MOTORS CORP 6 Aug 1975 [27 Nov 1974] 32856/75 Heading C7B A powder mixture consisting of 3-4 parts Al and 1 part of an alloy of 70-80% Cr, the balance Al, is electro-phoretically deposited on a Co or Ni based super-alloy, followed by heating optionally under H2 at 1875-1925F for at least 5 hours to form a Cr-Al diffusion alloy with the substrate. Gas turbine engine parts may be coated, with cooling to below 1000F under H 2  and a sub-  sequent grit-blast cleaning and re-heat to 1300F to form an oxide layer. The diffusion alloy may have a thickness of 0.5-5 mils. The Co super-alloy contains, in wt. per cent, 50-70 Co, 20-30 Cr, 0-10.5 Ni, 0-11 W, 0-7 in total of one or more of Ti, B, Si, Fe, Ta, Nb, and no more than 1 each of C, Mn, Si. The Ni super-alloy contains 40-80 Ni, 5-20 Cr and up to the stated %'s of the following; 10 Mo, 5.5 Ti, 6.5 Al, 3 Nb, 9 Ta, 13.5 W, 2 Hf, 1 Re, 1.5 V, 20 Co, 3 Fe and 1 of C, B, Zr, Si, Mn. Either alloy may contain S, Cu or P as incidental impurities. Cathodic deposition is used with isopropanol/nitromethane suspension medium containing Co nitrate and zein.
Patent GB-709060-A (GB)
Title: Improvements relating to bar chucks
Inventor: LLOYD ARTHUR HAROLD
IPC: B23B31/12
Filed: 1952-12-30
Abstract: 709,060. Chucks. HERBERT, Ltd., A. Dec. 30, 1952, No. 32945/52. Class 83 (3) The jaws 31 of a hollow-spindle chuck are independently adjustable radially and axially in slots 30 in a sleeve 28 mounted within the spindle 13 and maintained in contact with a conical surface 14 on the spindle by being supported at their inner ends by the chamfered face of a ring 34 pressed in the disengaging direction by a spring 35 and at their outer ends by a flange member 24 adjustably screwed to a slidable actuating sleeve 22. The outer surfaces 38 of the jaws are preferably formed to a smaller radius (viewed endwise) than the conical surface 14, to ensure line contact and similarly the gripping surfaces 39 are formed to a radius equal to or greater than the maximum work diameter. A flanged bush 42 with jaw slots 44 prevents chips lodging between the jaws and has a chamfered inner end 45 for guiding the work into the jaws. The sleeve 22 may be shifted by mechanism as described in Specification 603,674, in which levers 18 are moved in the closing direction by an inclined face 50 on a yoke sleeve 16 slidable on the sleeve 22 or by ball mechanism, in which case the conical surface 14 is on a sleeve splined to the spindle and the flange 24 is fast with the spindle.
Patent GB-542758-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/20
Filed: 1938-11-12
Abstract: 542,758. Making piston rings. HORST, H. VAN DER. Nov. 12, 1938, No. 32967. [Class 83 (ii)] [Also in Group XXVI] A process for producing piston rings having an electrolytically deposited layer of chromium on their peripheral surfaces consists in forming a transverse groove b in the periphery of a ring a, assembling a number of rings together in exact axial alignment to form a cylinder, as in Fig. 3, depositing a layer of chromium on the surface of the cylinder, separating the rings and dividing each on the line of the groove b. Alternatively a cylinder c, Fig. 4, formed with annular grooves d, and with a parthelical or inclined groove e, is coated and then cut along the grooves to form the separate split rings. An existing split ring may be coated by first filling in half the depth of the gap by a metallic plug.
Patent GB-1148368-A (GB)
Title: Chopper stabilized operational amplifier
IPC: H03F1/30
Filed: 1967-07-18
Abstract: 1,148,368. Amplifiers. ZELTEX Inc. 18 July, 1967 [1 Sept., 1966], No. 33004/67. Heading H3W. In an operational amplifier of the type in which the D.C. working conditions are stabilized by means of a subsidiary chopper-type amplifier, feedback is provided around the chopper amplifier which is not operative for normal linear operation of the system, but comes into operation upon overload. An embodiment comprises amplifier system 11 provided with series input resistor R in  and overall negative feedback via resistor R feedb  to summing junction 27. Amplifier system 11 comprises series resistor R 1  connected to junction 21, from which A.C. components are fed over capacitor 38 to input 51 of input stage 36. The D.C. components are filtered off by RC network 32, 29 and applied to a chopper-type amplifier comprising input resistor 33 and chopper 31 feeding via capacitor 25 an A.C. amplifier 23. The output of amplifier 23 passes via capacitor 20 to output chopper 34, the output of which is smoothed by resistor R f  and capacitor C f  and applied to the second input 52 of input stage 36. Input stage 36 feeds output stage 22. In such an arrangement, momentary overload causes capacitor C f  to be charged up and this blocks the operation of the amplifier for an appreciable time-interval before the capacitor becomes discharged again. To prevent such overloading occurring negative feedback is applied around the amplifiers 23, 36 by means of a feedback path to junction 21, comprising an auxiliary amplifier 14 which may be of unity gain, and reversely connected diodes 17, 18 which provide that feedback only occurs when normal signal levels are exceeded.
Patent GB-1420464-A (GB)
Title: Inflatable removable roof structure
IPC: E04H4/10
Filed: 1973-07-11
Abstract: 1420464 Retractible roof structure COMPAGNIE D'ETUDES ET DE CONSTRUCTION D'EQUIPEMENTS COLLECTIFS COTECHNIPP 11 July 1973 [11 July 1972] 33157/73 Heading E1A A retractible roof for a structure, e.g. a swimming pool, comprises an inflatable double skinned cover 5, 6 having a single skinned peripheral flange 5b, the cover being arranged to be wound onto and off a drum 14 at one side of the structure and to be tensioned by wires 28 wound onto a drum 23 at the opposite side of the structure, the covering passing over an inflatable hose 10 along the structure's periphery. The covering is made of neoprene-coated nylon and the lower skin 6 is reinforced with a stainless-steel mesh. Hot-air ducts 45 are provided.
Patent GB-1293630-A (GB)
Title: Improvements in methods and apparatus for the manufacture of punched cards
Inventor: BALL KARLHEINZ
IPC: G06K1/18
Filed: 1970-07-08
Abstract: 1293630 Cutting and punching sheets K BALL 8 July 1970 [11 July 1969 21 April 1970] 33183/70 Heading B4B A method of producing cut and punched sheets, particularly for use in the production of data transmission cards, comprises severing a sheet so as to cut thereinto the outlines of several cards while leaving at least one connection between each of the cards and the remainder of the sheet, and simultaneously punching holes into each of the cards at predetermined locations thereof. As described, the method is employed to produce cards 6, Fig. 1, from a plastics sheet 5, by cutting along the major edges 8 of the cards and leaving the cards attached to the sheet by weakened portions 9 which may be perforated and/or fold lines.  Apparatus for performing the method, Fig. 4, comprises a first section including a base 12 supporting a plurality of anvils 14 having apertures 15 and surrounded by a spring-loaded confining plate 16, and a second section comprising an encoding plate 17, inserts 19 movable in recesses 18 in the plate 17 and a cover 22 for the plate. In use, the cover 22 is removed and a punched paper tape 27 laid on the plate 17. Movement transmitting pins 26, or balls, are dropped through the perforations in tape 27 into selected ones of a plurality of bores in the plate 17 and inserts 19 so as to lie above punches 29 in these bores. The cover 22 is then secured to plate 17 and the first and second sections together with a sheet 5 are placed between the upper 24 and lower 11 plates of a mechanical or hydraulic press. When the press is operated, the edges of anvils 14 co-operate with the edges of recesses 18 to cut the edges 8 of the cards and the punches 29 punch a selected pattern of holes 7 into each card.
Patent GB-1520913-A (GB)
Title: Method of repairing an internal combustion engine by replacing the crank-shaft thereof
IPC: F16C9/02
Filed: 1975-08-11
Abstract: 1520913 Engine mountings SOC D'ETUDES DE MACHINES THERMIQUES 11 Aug 1975 [26 Aug 1974] 33392/75 Heading F1M To facilitate the removal and re-installing of the crank-shaft 13 of an I.C. engine 11, e.g. a diesel engine for ships, two or more of the supports 16 which normally fix the engine to the base 12 are replaced on one side of the engine by pivot supports 25 so that the engine may be tilted and, after removal of the cylinder heads, pistons and connecting rods and bearing caps (19), Fig. 1 (not shown), the crank-shaft removed by first lowering and then moving laterally. The caps may be removed before or after tilting the engine. A guide sleeve 38 is mounted on a bearing cap pull-bar 39 by a bearing side-screw 40 to facilitate lowering of the crankshaft by slings 35. The tilting of the engine may be effected by a pulley block or crane, or by actuating cylinders, wedges or props; the engine being maintained in its titled position by cables or slings to allow removal of the wedges or props.
Patent GB-1428996-A (GB)
Title: Actuating device
IPC: H01H3/60
Filed: 1973-07-12
Abstract: 1428996 Actuators SIEMENS AG 12 July 1973 [13 July 1972] 33406/73 Heading F1D [Also in Division H1] An hydraulic actuating device for a high voltage switch comprises a piston 3 linked to the moving contact 1 of the switch and having two surfaces 17, 17a on which pressurized fluid can act, the top surface 17a having a smaller area than the bottom surface 17, so that when valve 6 is moved to the left hand position pressurized fluid from tank 7 passes via channel 11, valve 6 and bores 23 and 16 to the larger area bottom surface of the piston to move it upwards, and when valve 6 is moved to the right hand position the piston descends, its top surface 17a being continuously subjected to the pressurized fluid in tank 7 and channel 11 being closed, fluid driven out from below the piston passing to tank 27 via bore 16 until projection 15 on the piston closes this bore when the fluid is obliged to pass out of the throttling bore 19 thus cushioning the last part of the opening movement and preventing rebound. The valve 6 has a portion 25 which closes bore 23 during descent of the piston, the valve being moved by a piston 10 due to pressure in a control line 10a.