baber/WOPTO huggingface dataset:
Patent GB-970330-A (GB)
Title: Improvements in or relating to open hearth furnace doors
Inventor: DEMAISON RAYMOND JULES
IPC: F23M7/00
Filed: 1962-09-20
Abstract: 970,330. Furnace doors; refractory blocks. QUIGLEY CO. Inc. Sept. 20, 1962, No. 35917/62. Heading F4B. A furnace door comprises a metal frame with separate refractory inserts on either side, mounted so that the door can be reversed to bring either insert into service. An open hearth furnace door, Figs. 1 or 2, has a water-cooled metal frame 11 and central part 12, with inlet and outlet connecnections 13, 14 at the top edge. A monolithic refractory lining 20 is held in place on either side of the web 12 by pins 23 welded to the web and by the undercut inner faces 22 of the frame 11. The door is raised and lowered in its own plane by chains 24 attached to a lifting bar 25 by pins engaging eyes 28 so that the door can be pivoted to a horizontal position by a crane engaging a ring 34 on a lifting pad 32 secured to the bottom of the frame 11 by a pivot-pin 33. The lifting bar 25 is pivoted to a hanger bar 29 by a pivot-pin 30 in line with the lower pin 30. To allow for limited rocking movement between the bar 29 and the door, the bar 29 is secured to the frame by lugs 29a and pins 31 passing through forked brackets secured to the top of the door frame. The sill of the furnace door opening is formed with a recess to accommodate the lifting pad 32, and to reverse the door it is raised to the horizontal and pivoted about the pins 30, 33. A damaged lining can then be repaired while the door is in service. A thimble 19 extending through the web 12 forms a peep-hole. In a modification, Fig. 4, the door is faced with refractory blocks 40. The inside edges 22a of the door frame are perpendicular to the door face, and the door is lifted by a single chain secured to an eye 53 on a pivotpin 51 passing through a lifting bar 52 secured directly to the door frame. A recess in the bottom of the door frame accommodates the lifting pad 32. The lining blocks 40 have metal reinforcing spiders, Fig. 8, the central hole 45 of the spider engaging a stud 46 welded to the door web part 12a, Fig. 7. A hole 45<SP>1</SP> in the brick to allow access to the fastening is plugged with refractory material. In this embodiment, the thimble 19 does not extend the full thickness of the door.
Patent GB-366638-A (GB)
Title: Improvements in metal holdfasts
IPC: E01B13/02
Filed: 1930-11-29
Abstract: 366,638. Securing rails &c. to sleepers &c. BATEMAN, H. M., Princes Street, Burwood, New South Wales, Australia. Nov. 29, 1930, No. 35979. [Class 104 (ii).] A device for securing rails or other articles in position comprises a flat or angle steel piece 10, provided with spaced holes 14 in which U-shaped steel bars 15 are adapted to be turned to wedge on the upper surface of the rail &c., and the under surface of the piece 10. As used for preventing creep of a rail 11, the piece 10 is shaped as shown in Fig. 3, the vertical face 12 abutting on a sleeper 13, while the horizontal face 10 is level with the top of the sleeper and receives the bars 15. The faces of the bars engaging the rail and piece 10 may be flattened, and the underface of the latter may be ridged, &c. where the bar engages it to improve the friction grip.
Patent GB-1139336-A (GB)
Title: Improvements in or relating to baffles
Inventor: HORNER HAROLD
IPC: A47J36/14
Filed: 1966-08-11
Abstract: 1,139,336. Kettles. PRESTIGE GROUP Ltd. 11 Aug., 1967 [11 Aug., 1966], No. 36075/66. Heading A4A. A kettle body 101 (see Figs. 3 and 4) having a spout 102, an opening 103 in the body leading to the spout, a bridge member 104, which may be horizontal and may be formed integrally with the body, extends across the said opening and is adapted to support a baffle 108 for the said opening, the major part of the bridge member 104 being located inwardly of the body relative to the adjacent body parts. The bridge member may include a central portion upstanding from its main part which central portion is adapted to be connected to the baffle. The baffle is attached to the bridge member by means of screw 109, and may include a vertical portion 106 parallel to the main portion of the bridge member 104 and a horizontal portion 112 which can serve as a maximum water level indicator. In an alternative arrangement shown in Fig. 2, the spout opening 23 has a bridge member 24 thereacross. The bridge member is integral with the kettle body and projects inwardly into the body of the kettle. The baffle 10 is attached to the bridge member by means of a rivet passing through the aperture 21 in the baffle plate into the aperture 25 or located centrally on the bridge member. The baffle plate is provided with ears 19 which fit into the side apertures 26 on either side of the bridge member and with bent-over side edges 16 which rest against the side of the kettle when the baffle is in position. The horizontal portion 12 of the baffle (it forms part of a one piece stamping and is then bent into the horizontal position) contains reinforcing ribs 27 pressed out of the horizontal part 12 and serves as a maximum water level indicator.
Patent GB-1457673-A (GB)
Title: Handling apparatus
Inventor: RONBECK A I
IPC: B21D43/04
Filed: 1974-08-16
Abstract: 1457673 Stamping VOLVO AB 16 Aug 1974 [23 Aug 1973] 36082/74 Heading B3Q [Also in Division F2] A handling device, Fig. 1, for moving a working member along a substantially rectilinear first path BC and a substantially rectilinear second path AB or CD, shorter than, and at right angles to, the first path comprises a rod 3 carrying a working member at one end E and driven by a crank arm 1 pivotable about an axis O the rectilinear extension of which intersects the first path. The crank arm is pivoted to the midpoint G of the rod 3 and is half the length of the rod 3. While the end E of the rod is moved along the first and second paths, the end F is constrained to move along respectively a rectilinear path JH, which is normal to the said first path and the rectilinear extension of which intersects the pivot axis O, and an arcuate path JK or JL, the centre of the circle on which the arc lies lying on the rectilinear extension JO.  The handling device is particularly applicable to moving a work-holder 29, Fig. 4, carrying a suction gripper 31 for lifting a workpiece, feeding it to a press and lowering it between the dies, particularly for transfer forming presses. The end F of the rod 3 carries a roller 11 moving in a guide 13a-13c. To achieve a smooth transition between the first and second paths the roller 11 is also guided by surfaces 17 and 19 on a lever 21 having a forked end 25 bearing on a pin 27 on the arm 1. To keep the workholder 29 horizontal it is guided by a parallelogram linkage 35, 41 and 43. To dispose the work-holder 29 at an angle the pivot 37 is adjustable to make the distance between pivots 33 and 37 different from that between pivots 9 and 39.
Patent GB-156120-A (GB)
Title: Process for the manufacture of vinyl halides
IPC: C07C17/00
Filed: 1920-12-30
Abstract: Vinyl halides are produced by heating calcium carbide with hydrogen halides, dissolved in water or an organic solvent, in the presence of a catalyst, such as mercury, copper, zinc, aluminium, or tin compounds; or by heating calcium carbide with concentrated hydrogen halides under pressure in the absence of a catalyst. According to the example, vinyl chloride is prepared by adding calcium carbide to hot concentrated hydrochloric acid containing a little of the mercury salt of ethylene, chlorsulphonic acid, ethylidene dichloride and dichloracetaldehyde being formed as by-products. Dichloracetaldehyde.-The formation of this by-product of the above reaction is facilitated by the presence of ferric chloride.
Patent GB-820167-A (GB)
Title: A cam-actuated electric light-current switch
IPC: H01H1/24
Filed: 1955-12-20
Abstract: 820,167. Switch contacts. ZAVODY V. I. LENINA, NARODNI PODNIK, and NOVOTNY, B. Dec. 20, 1955 [Dec. 20, 1954], No. 36531/55. Class 38 (5). A cam-actuated rocker 29 has a transverse strut 24, one end of which pivots in a recess 6 in a base 1, the other end of the strut engaging a groove in a contact spring 31 so that as the rocker pivots, the contact 32 has a combined pivotal movement towards fixed contact 33 and a transverse wiping movement relatively thereto so as to clean the contacts. The rocker is biased counterclockwise by a spring 8 and is limited in this movement by edges 13 thereon engaging fixed abutments 12.
Patent GB-898534-A (GB)
Title: Improvements in or relating to solid electrolyte batteries
IPC: H01M12/06
Filed: 1960-10-25
Abstract: 898,534. Batteries; semi-conductor devices. ELECTRIC STORAGE BATTERY CO. Oct. 25, 1960 [Dec. 4, 1959], No. 36563/60. Classes 37 and 53. An electric battery exhibiting photo-voltaic, photo-conductive and rectifying properties comprises a lead cathode, a solid electrolyte of lead monoxide and an anode of oxygen. The lead 1 is contained in an insulating case 5, 12 with the monoxide layer 2 formed electrolytically thereon. Activated carbon 11 carries the oxygen anode. In a modified construction (not shown) the cell has an open top 12 and the carbon is replaced by a light transmitting grid to enable the photo effects to take place.
Patent GB-952517-A (GB)
Title: A combined mixer and conveyor unit for granular, powdered or like material
Inventor: CIANI GINO
IPC: B22C5/12
Filed: 1961-10-13
Abstract: 952,517. Mixing foundry sand. FORDATH ENGINEERING CO. Ltd. Sept. 5, 1962 [Oct. 13, 1961], No. 36746/61. Heading B1C. A mixer and conveyer for foundry sand, binder and accelerator is mounted on a vertical pivot so that it can be swivelled to facilitate distribution. As shown, the mixer comprises a screw 11, motor 16, and sand supply hopper 23 with adjustable apertured plates 25 for controlling the rate of discharge and a closure plate 26 actuated by a pneumatic or hydraulic cylinder 27. A metered quantity of core binder is pumped through the nozzle 28 and powdered accelerator is supplied at 29. A handle 32 for swinging the mixer about the pivot 15 is mounted on the discharge end of the housing 12, as are "stop" and "start" buttons 31 for controlling the mixer drive, sand gate and accelerator feed. The band of the screw 11 is reversed between the discharge outlet and the end of the housing to ensure complete discharge; the screw flight may be discontinuous, mixing paddles being mounted between the screw sections. Specification 952,518 is referred to.
Patent GB-1524994-A (GB)
Title: Device for folding sheet or strip material
IPC: B21D13/02
Filed: 1975-09-08
Abstract: 1524994 Corrugating sheet material PHILIPS GLOEILAMPENFABRIEKEN NV 8 Sept 1975 [11 Sept 1974] 36879/75 Heading D1S [Also in Division B3] Strip or sheet material is corrugated between opposed toothed dies each incorporating ducts opening into its toothed surface and communicable with a source of fluid under non-atmospheric pressure, whereby the work may be held alternately in one die, then the other. The source may be a vacuum pump, so that the work is held on a die face by suction, or a high, pressure source of water or oil, or compressed air as in Fig. 1, where ducts 5, 8 in dies 1, 2, are alternately connected by change over valve 11 to a compressed air source 12. Die 14 is reciprocable in the direction of stop advance by drive 15, and die 2 is reciprocable in the perpendicular direction by drive 16, which also operates push-button 14 to change over valve 11. The operational cycle is that with die 1 in the position shown, and the work held on die 1 by pressure applied to ducts 5, die I is advanced to form a half corrugation at the left of the dies. Valve 11 then changes over, so that when die I withdraws, air supplied to ducts 8 holds the work on die 2. Die 2 then moves to the right, advancing the works and die 1 advances again to form the second half of the corrugation. Valve 11 changes over again, so that this time when die 1 withdraws, the work goes with it, and die 2 can return to the starting position shown. The ducts may open into the die face between the teeth, instead of or in addition to the arrangement shown. Both dies may reciprocate in the direction of strip advancement.
Patent GB-1084705-A (GB)
Title: Semiconductor planar optical mixer systems
Inventor: SANDBANK CARL PETER
IPC: H01L31/00
Filed: 1965-08-27
Abstract: 1,084,705. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Aug. 26, 1966 [Aug. 27, 1965], No. 36915/65. Heading H1K. A semi-conductor planar optical mixing system comprises an epitaxial semi-conductor layer on a substrate of opposite conductivity type with means to apply an electric field along the layer and for causing two light beams to impinge on the layer coplanar with the electric field so that an output current modulated at the difference frequency of the light beams may be obtained. In the simple form the two light beams are colinear and the output arises in the current between the two drift electrodes, in the travelling wave mixer form the light beams are at different angles and the phase velocity of the difference wave is synchronized with the carrier drift velocity to form bunches of carriers which are detected by applying a transverse electric field, the -transverse current varying at the difference frequency. The simple embodiment comprises a 10 Á silicon or germanium layer on a substrate of opposite conductivity type with two aluminium electrodes penetrating a transparent oxide layer. The oxide layer may provide #/4 transformer effect to reduce surface reflectivity. Fig. 2J shows a travelling wave type embodiment with P-layer 8 epitaxially deposited on N-type body 7; P + regions 11, 13, and two regions 12 are provided by diffusing boron and oxide marking. Aluminium contacts 15, 16, 17 are provided on the P + region, the drift voltage being applied between electrodes 15 and 17 and the transverse voltage to electrode 16; output is taken from a transformer connected to electrode 17 as shown in Fig. 5 (not shown). In a further travelling wave embodiment (Fig. 3P, not shown) the N-type epitaxial layer is provided with two ohmic electrodes (24, 25) and -the underlying P. substrate (17) is provided with an irregular annular shaped N + region (18, 18<SP>1</SP>) underlying electrode (25) which is used for the transverse field.
Patent GB-803807-A (GB)
Title: Improvements in and relating to a change speed box of the preselection type for machine tools
IPC: F16H61/02
Filed: 1956-12-04
Abstract: 803,807. Change-speed control. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Dec. 4, 1956 [Dec. 13, 1955], No. 36997/56. Class 80 (2). Relates to change-mesh change-ratio gearing for machine tools, of the type in which an electric motor M drives a shaft 3 formed with gears 6 ... 8 and on which is threaded a nut 14, a triple gear 9 being slidden axially of a countershaft 4 to engage the appropriate gear 6 &c. for the different ratios. Change of ratio is effected when the electric motor M has been stopped. According to the invention, a desired ratio is preselected by turning a pointer 48 and shaft 32, and this ratio is then established by operation of a lever 22 which slides a rod 18 axially parallel to the shaft 13 against the bias of a spring 23, the rod 18 carrying a projection 17 which engages with castellations 16 on the nut 14 so that it is prevented from turning. As the rod 18 slides, the nut 14 is also moved axially and thus inches the shaft 3 round to facilitate meshing of the gears. The preselector shaft 32 carries a drum 33 formed with recesses 34, 35, &c. of different depth to receive plungers 36 engaging a three-armed lever 40 connected to a selector fork 44 sliding the gear 9. Turning the pointer 48 over a scale (not shown) indicating the ratio selected turns the drum 33 so that recesses 34 of appropriate depth lie opposite to the plungers 36. Operation of the lever 22 slides the rod 18, as described, and simtiltaneously slides the drum 33 axially of its shaft 32 so that the recesses 34 engage the plungers 36, thus turning the three-armed lever 40 and sliding the triple gear 9 on the countershaft 4. To prevent the ratio establishing lever 22 being turned while the motor M is driving, a plunger 25, Fig. 5, is biased by a spring 27 into the path of an arm 24 fast with the lever. When the motor is switched off an electromagnet 26 is energized and withdraws the plunger 25. To prevent the motor M from being started while a preselected ratio is being established in the gear, a switch 28 in the control circuit of the motor is normally closed by the arm 24 but is opened by the withdrawal of the arm during a, ratio establishing movement.
Patent GB-909995-A (GB)
Title: Scanned beam apparatus
IPC: H01J3/02
Filed: 1958-11-18
Abstract: 909,995. Cathode-ray tubes; cathode materials. DAUCHI BUSSAN KAISHA Ltd., and NAKAMATSU, Y. Nov. 18, 1958 [Nov. 19, 1957; Sept. 30, 1958], No. 37061/58. Class 39 (1). A radio-active material which emits #-rays is used as a cathode in scanned beam apparatus. In the apparatus shown a radio-isotope 2, e.g. Tl 204, is placed in a container 1 of shielding material, e.g. lead, having a hole 1<SP>1</SP> with a cover 3 which can be slid aside by operating a knob 4 to permit #-rays to pass through a control grid 5 and a deflection system 6 to a fluorescent screen 7. If an isotope such as Sr 90, which emits both α-rays and #-rays is used, the container 1 is arranged so that the rays are emitted at an angle to the screen 7 and an additional magnet is used to deflect the #-rays through the deflection system to the screen, while the α-rays pass straight on (Fig. 3, not shown). #-rays may also be scanned over the fluorescent screen of a flat tube apparatus or over the image screen of a camera tube (Figs. 2 and 4, not shown).
Patent GB-875398-A (GB)
Title: Improved methods of releasing soldered connections
Inventor: BERZINS GUNARS
IPC: B23K1/018
Filed: 1959-01-20
Abstract: 875,398. Soldering. COMMUNICATIONS PATENTS Ltd. April 14, 1960 [Jan. 20, 1959], No. 37412/58. Class 83 (4). In releasing a soldered connection the heated surface of a tool is used to melt the solder and a supply of gas under pressure is used to establish a blast of gas directed at the connection to remove sufficient solder to release or facilitate the release of the connection. The tool may comprise an electrically heated soldering iron alongside the bit of which is attached a tube connected to an air supply reservoir, supply of air through the tube being controlled by a pressbutton valve. The front end of the tube may pass through the bit. Instead of or in addition to the tube one or more passages may be provided in the bit e.g. an axial bore connected to a flexible air supply line. In a modification the tool comprises a wire loop, heated by a current, 'a pistol grip handle and a cylinder and piston operated by a lever on the handle to function as a pump to deliver air to a reservoir in the handle. A tube associated with the loop communicates with the reservoir through a valve opened by a trigger and the operation includes operating the lever on the handle several times to charge the reservoir, heating the loop and applying it to melt the solder and actuating the trigger to direct a blast of air through the tube. A number of blasts for each operation of a lever may be provided. An annular array of steel bristles to collect solder particles is arranged about a hole in a member through which the soldering iron may pass to unsolder a connection on a chassis or printed circuit board. A tangled mass of fibres may be employed or a tank containing water with a hole over which the connection is located may be used to collect solder particles. A continuous flow of air may be used and the air may be supplied from a line, a cylinder or a foot ot motor operated pump. According to the Provisional Specification a vacuum may be created adjacent the connection to draw solder away therefrom.
Patent GB-803651-A (GB)
Title: Process for producing nodular cast iron
IPC: C21C1/10
Filed: 1954-12-29
Abstract: A process for the production of spheroidal graphite cast iron by injecting an inert gas containing an innoculant and a spheroidizing agent entrained therein into a bath of molten cast iron comprises adding to the gas stream containing the innoculant and the spheroidizing agent a comminuted refractory diluent amounting to 40-70 per cent of the total injected material.  The spheroidizing agent may be magnesium, a magnesium alloy, or a cerium-magnesium-ferrosilicon, the innoculant may be silicon or a silicon alloy; and the diluent may be calcium carbide.  The sulphur content of the cast iron may be reduced to below 0.01 per cent by deoxidizing the melt and then injecting calcium carbide. Specifications 630,070 and 803,652 are referred to.
Patent GB-877783-A (GB)
Title: Improvements in pipe couplings for use between coupled vehicles
Inventor: CHECKLEY PETER EDWARD
IPC: B61G5/08
Filed: 1957-12-02
Abstract: 877,783. Train pipe couplings. DOWTY HYDRAULIC UNITS Ltd. Feb. 27, 1959 [Dec. 2, 1957], No. 37511/57. Class 99(1). In a vacuum brake pipe connector for use in combination with mutually aligned railway vehicle couplers, a rigid pipe 6, having at one end a flange 18 holding a frusto-conical abutment sealing ring 19 and at its other end ribs 22 for connection with a flexible vacuum pipe on the vehicle, is slidably mounted in a bracket 8 attached to a horned type automatic coupler 5 and to which is secured spring means such as a pyramid-shaped rubber buffer 16 urging the pipe 6 into sealing engagement with a like pipe mounted on an adjacent automatic coupler. A pin 14 holds the pipe 6 in the bracket 8 but is readily disengageable to enable the pipe to be withdrawn therefrom, while a fastening ring 23 enables the pipe 6 when withdrawn to be connected to a pipe connector on an adjacent vehicle not fitted with an automatic coupling. As shown, a slideway is formed in the bracket 8 by two opposed channels 11 for reception of a slide 12 formed on the pipe 6, and the pin 14, extending through the slide 6, provides a stop for the pipe 6 against the end face 15 of the slideway. The ring 23, engageable with the flange 18, is formed with a hook 24 and a lug 25 for engagement with a like ring on the other connector, the two rings being secured one to the other by a pin which is passed through one of the lugs 25. The ring 23 is provided with an enlargement 27 having an opening 28 therein which allows the ring when not in use to be pushed back out of the way behind the bracket 8 over the slide 12 of the pipe 6. Alternatively, the ring 23 is integral with or secured to the flange 18.
Patent GB-1438550-A (GB)
Title: Heat treatment furnace
IPC: F27B15/00
Filed: 1973-08-09
Abstract: 1438550 Heat-treatments in fluidized beds; carburizing FLUIDFIRE DEVELOPMENT Ltd 9 Aug 1974 [9 Aug 1973] 37708/73 Headings C7N and C7U [Also in Division F4] A furnace for the heat-treatment, particularly carburizing, of metal articles comprises a chamber 11 containing a fluidized bed 10 of sand, a distributer 19 for an air/gas mixture supplied from a mixing chamber 30a, pipes 25, 26 supplying secondary air and a cylindrical partition 24 spaced from a grid 21 above the distributer. A compressor 28 supplies the air through valves 27c 27b and lines 29a, 29b. Propane or methane or preferably a mixture of both is supplied through valve 27a and line 30. In operation, the furnace is supplied with an air/gas mixture with an excess of gas. In the zone 23 combustion completed by the air supplied through pipes 25, 26 increases the rate of gas flow inducing circulation of sand into the treatment zone 22. There the excess of fuel is cracked producing carbon to carburize the articles contained therein. These articles are in a basket suspended in said zone 22 or disposed on the grid 21. Alternatively, the partition 24 itself maycomprise the article container. Each zone of the bed may have its individual gas distributer with separate feed. During a treatment period of 1¢ hrs at 950C a case comprising 1À0%-1À2%C twenty thousands of an inch deep may be attained.