baber/WOPTO huggingface dataset:
Patent GB-1430800-A (GB)
Title: Apparatus fo indicating the position of a load handling  devic3 relative to a surface or surfaces
IPC: B65G1/04
Filed: 1973-03-29
Abstract: 1430800 Light arrangement for use on load handling vehicles CLARK EQUIPMENT CO 29 March 1973 [13 Sept 1972] 15038/73 Heading F4R A light arrangement comprises in a rigid elongate housing means for producing a longitudinally extending pencil beam of light which is directed out of an opening in a side wall of the housing in the form of a substantially planar diverging or apparently diverging beam, the arrangement when mounted on the load handling part of a fork lift truck, for example, producing a sharply defined line of light on surrounding walls, pallets &c. to obtain an indication of the position of the load handling part with respect to the surroundings. As shown the housing may be an elongate hollow tube or box with an opening 136 in the side wall through which the light beam is projected by a reflector 134 which may be adjustably mounted on a fulcrum. If the light source is essentially a point source, e.g. a Xenon short arc lamp, it is disposed at the focus of a parabolic mirror to produce a collimated beam in the housing which is turned through 90 degrees and spread out into a fan-shape by a conical section reflector. If however the light source is relatively large, as shown, e.g. an incandescent lamp 38, an aperture plate 132 is disposed in front of the lamp 38 and parabolic mirror 39 with a twoelement lens system 40, 42 produces the collimated beam. The emergent fan of light is focused on infinity and may have a spread of 30-60 degrees with a vertical cross-sectional dimension of À75 inch. As shown in Fig. 6 the light beam is preferably aligned with the fork tine on which the light arrangement is mounted. In the alternative embodiment shown in Fig. 6 the light source is a bottle type gas laser 174, the beam from which is scanned over an arc to produce an apparent line of light by rotating a 45 degree mirror 176 mounted on the hollow shaft 178 of a hollow shaft electric motor 180 coaxially aligned with the laser beam.
Patent GB-316718-A (GB)
Title: Improvements in or relating to air heaters
IPC: F28D9/00
Filed: 1928-05-23
Abstract: 316,718. Howden & Co., Ltd., J., and Hume, J. H. May 23, 1928. Plate apparatus.-A heat-exchanger is made up from corrugated sheets, the edges of which are suitably slit as at 35, 36 and flattened out to make a plane selvedge 37, pairs of sheets being assembled with their corrugations touching, and welded to form parallel ducts 3 for one fluid, adjacent pairs forming sinuous ducts for the other fluid between them. Filling pieces 39, 40 are welded to the top and bottom ends. Specification 295,106 is referred to in the Provisional Specification.
Patent GB-1066483-A (GB)
Title: Control installations for automatically venting chambers
Inventor: O'HEA JEROME
IPC: F24F7/00
Filed: 1963-04-17
Abstract: 1,066,483. Fire prevention venting means. COLT VENTILATION & HEATING Ltd. April 15, 1964 [April 17, 1963], No. 15105/63. Heading A5A. A chamber is automatically vented in the event of fire by a ventilator which is normally urged into the closed position against a selfacting opening device (e.g. a spring) by a remotely powered (e.g: by pneumatic or hyraulic means) actuator. A fire detector in the chamber acts as controller for the actuator whereby, in the event of fire, the actuator is made inoperative to allow the ventilator to open. In addition, the remote power supply may be used to change or reset the ventilator from the open to the closed position. The embodiment described is a multiple system used in a block of flats wherein ventilators 21 are held closed by pneumatic pistons 23 operated by a compressor 28 and storage tank 29. Detectors 25 connected to control means 27 actuate the pneumatic system.
Patent GB-675428-A (GB)
Title: Method of improving kaolin and products thereof
IPC: C04B33/02
Filed: 1950-06-16
Abstract: Clay is mixed with water and a dispersing agent e.g. sodium hexametaphosphate to produce a suspension containing say 20-45 per cent solid matter, and the suspension is classified in successive operations by the application of centrifugal force to produce a material from which particles larger than 10 microns equivalent spherical diameter and smaller than 0.25 microns are absent.  A preferred upper limit of particle size is 2-3 microns.  A preliminary classification may be employed to remove sand, mica, &c.  The removal of the coarse and fine particles may be in either order.  The treated material may be treated with a bleaching or flocculating agent or both and dewatered, and the dried material may be pulverized in a grinding mill.  The product is suitable for coating paper, and for use in the paint and ceramic industry.
Patent GB-1168428-A (GB)
Title: Silicone Rubber
Inventor: GRUBER VALENTINA NIKOLAEVNA
IPC: C08G77/06
Filed: 1968-03-29
Abstract: 1,168,428. Organopolysiloxane rubbers. NAUCHNO - ISSLEDOVATELSKY INSTITUT SINTETICHESKOGO KAUCHUKA IM AKADEMIA S.V. LEBEDEVA. 29 March, 1968, No. 15183/68. Heading C3T. Polyorganosiloxane elastomers are prepared by polycondensing one or more α-#-dihalopolydihydrocarbylsiloxanes in the presence, as condensing agent, of an aqueous soln. or suspension of a hydroxide of a metal of Group Ta or IIa of the Periodic Table or a salt of such a metal with a weak mineral acid, having a dissociation constant of <2 x 10<SP>-4</SP> ammonium hydroxide or an ammonium salt of such a weak mineral acid. Suitable condensation agents are: KOH, (NH 4 ) 2 CO 3 , Ca(OH) 2 , Mg(OH) 2 , NaOH, NH 4 HCO 3  or sodium silicate. Condensation may take place at ambient temperature for 0À1 1 to 4 hours. The hydrocarbon group of the siloxane may be alkyl, aryl or alkenyl. Examples relate to methyl, ethyl, phenyl and vinyl substituted siloxanes.
Patent GB-1240341-A (GB)
Title: Improvements in or relating to press machines
Inventor: PREW THOMAS BENJAMIN
IPC: A43D25/06
Filed: 1968-03-29
Abstract: 1,240,341. Cutting presses; moulding plastic substances. STAFFORD TOOL & MACHINE CO. Ltd. 14 March, 1969 [29 March, 1968], No. 15221/68. Headings B4B and B5A. A press machine comprises upper and lower platens 10, 12, relatively movable by means of two piston and cylinder units 18, 19, the units having cylinders of different capacity and being adjustable in their operative positions. A form tool 11 is provided on the platen 10, being heated, e.g. by a high-frequency generator, at least during part of the down-stroke. The platen 10 is supported by a stem 13 acted on by a lever 15 pivotable about an axis 16 on a main frame 91 by means of rams 20, 23 of the units 18, 19. A support block 26 is vertically adjustable to alter the operative positions of the units 18, 19 by sliding a movable wedge element 27 by means of a rotatable member 29 on a rod 81 acting through a mechanical linkage 28, further piston and cylinder means preferably supporting the block 26 during such adjustment. Also, an eccentric bearing 30 allows adjustment of the unit 18 relative to the unit 19. Operating cycle.-During initial setting up, a relatively soft lower platen backing, e.g. of brass, is lightly scored by the tool 11 to form a die. A workpiece, e.g. comprising several layers of sheet material, preferably thermo-plastic, is positioned, and a timing device is activated, switching on the heat supply e.g. just before the tool contacts the workpiece. Under the action of the ram 20, the tool penetrates the workpiece to a controlled extent, whereupon the heat supply is cut off, and, generally after a controlled interval to allow setting of the plasticized workpiece material, the larger unit 19 delivers a sharp force to complete the cutting cycle.
Patent GB-438730-A (GB)
Title: Improvements in or relating to rotary blowers
IPC: F04C18/44
Filed: 1934-05-22
Abstract: 438,730. Rotary blowers. VOSS, E., Bourne House, Dawley Road, Hayes, Middlesex. May 22, 1934, No. 15328. [Class 110 (ii)] The blower has vanes c supported on pivots e on the periphery of a rotor b which is mounted eccentrically in a casing a. A spindle g, supported at one end in the casing, and at the other by way of a crank k and crankpin k<1> in a bearing 2, is provided with bearings 8 each of which locates one end of a link d pivotally attached to a vane at f. During rotation of the rotor the vanes oscillate about pivots e, and through the links d maintain a constant clearance at their tips, with the casing bore. Arcs 4, are described from the axes of the pivot e, and the radii of the arc 5 and the casing bore, are approximately equal. The rotor is supported at one end in a bearing m, and at the other end is attached to the driving shaft n mounted in bearings l. The rotor end plates q are connected by tubes 3, which may be sloped to fit the recesses between the vanes. Inlet and outlet ports o, p are provided.
Patent GB-702266-A (GB)
Title: Improvements in or relating to multi-stage axial-flow compressors having means to regulate the characteristics thereof
Inventor: LOVESEY ALFRED CYRIL
IPC: F04D29/52
Filed: 1949-06-16
Abstract: 702,266. Axial flow compressors. ROLLS, ROYCE, Ltd. June 19, 1950 [June 16, 1949], No. 15330/50. Divided out of 702,265. Class 110 (1) In a multistage axial flow compressor, adjustable baffle means are provided in the duct passage to block off, wholly or partially, a coaxial annulus of the inner passage in the region of the inlet of the compressor or of the low-pressure stages or both. As shown, Fig 1, the rotor 12 is supported by web 15 and rotates about the axis XX in the annular duct 11, 16. Baffle elements 20 are supported in slots in the duct wall 16 so as to be slidable radially into the duct from the inoperative position 20a. When fully  retracted the tips of the elements are flush with the surface of 16 and the elements either overlap partially or lie spaced apart. In Fig. 2 the baffle elements 21 are hinged to the inner wall 16 at 22 and extend in a ring around the inner wall so that the hinges lie in the chords of a circle which has its centre on the axis XX and is in a plane normal to XX. In its inoperative position, 21 lies in the recess 21a in 16.
Patent GB-221291-A (GB)
Title: Improvements in apparatus for the manufacture of pressmoulded pneumatic tyre covers
IPC: B29D30/06
Filed: 1923-06-12
Abstract: 221,291. Spyker, J. June 12, 1923. Moulding wheel tyres.-In a press for moulding and vulcanizing tyre covers of the kind in which concentrically expanding cores and laterally engaging pressure flanges are employed, the tyre carcase is preliminarily moulded by expansion of the core, and is given its final form and vulcanized in a continuous operation by the co-operation of three moulding members. The latter comprise two lateral flanges 4, 5, and an expanding core 3, provided with correspondingly inclined surfaces 9<a>, 9<b>, 3<a>, 3<b>, so that expansion of the core draws the carcase between the flanges 4, 5 and into contact with the outer mould 6. The core, Fig. 4, is expanded by hydraulic means, comprising a fluid supply pipe 15 connecting passages 16, and pressure cylinders 12 provided with pistons 13 formed with extensions which bear against the wedges 11 of the core. Reverse piping 17 allows the pistons to be retracted, and recesses 10 are provided for the circulation of superheated steam.
Patent GB-389121-A (GB)
Title: Improvements in or relating to keys for securing railway rails in their supporting chairs
IPC: E01B9/58
Filed: 1931-05-26
Abstract: 389,121. Railway chair keys. MILLS, Ltd., J., (Executors of), Bredbury, near Stockport, and MACBETH, A., Broadway, The Firs, Bowden, Altrincham, both in Cheshire. May 26, 1931, No. 15333. [Class 104 (ii).] A chair key is formed by bending a piece of spring steel plate to form loops 9, 10. The corners 19, 20 of the free edges 17, 18 may be cut away or turned in to facilitate insertion. A liner 22 may be inserted between the chair and the key may have flanges 23, 24 to engage the ends of the key. Reference has been directed by the Comptroller to Specifications 16441/87, [Class 104, Railways &c.], 210,941, 291,613, and 336,864, [all in Class 104 (ii), Railway and tramway permanent way &c.].
Patent GB-859823-A (GB)
Title: Improvements in and relating to switching devices for gas or oil-fired heating systems, more especially systems for heating vehicles
IPC: F23N5/10
Filed: 1959-05-05
Abstract: 859,823. Switching devices for heating systems. BAIER, L., BAIER, W., BAIER, W., BAIER, W., and SCHLUMPRECHT, E., [trading as BAIER KOMM-GES., W.]. May 5, 1959 [June 12, 1958], No. 15357/59. Class 38 (4). In an oil or gas-fired heating system whereby a temperature-sensitive flame failure element 1 such as a thermocouple, normally holds closed a relay 8, 11, 12, 15 controlling the air and/or fuel supply motor(s) 2, an additional relay winding 9 is energized for starting purposes. The winding 9 is preferably controlled by a time switch 4-7, and an indicator lamp 14 may be connected to an additional contact 13 on the relay. The thermocouple current is only sufficient to hold the relay closed, the armature being attracted by the winding 9.
Patent GB-896857-A (GB)
Title: Improvements in or relating to elevator installations
Inventor: LUSTI JOHN
IPC: B66B1/14
Filed: 1960-05-02
Abstract: 896,857. Lift-control circuits. OTIS ELEVATOR CO. May 2, 1960, No. 15404/60. Drawings to Specification. Class 78 (3). A lift car provided with two or more superimposed compartments is operated by a control system which normally brings the compartments to selected floors in response to calls from the landings and compartments, in the order of floors in the direction of movement of the car, but which in the event of calls being registered for a pair of adjacent floors, answers both calls with one stop of the car with a compartment adjacent each of the pair of floors. The Specification describes in detail a control circuit for a system for two compartment cars which, under conditions where no calls are registered for adjacent floors, can operate either with one compartment answering all calls or with one compartment ansering all " up " calls and the other compartment answering all " down " calls. In another arrangement the compartments answer calls from odd and even numbered floors respectively. One car may be assigned to provide an express service for a predetermined zone of floors. Normally, the cars reverse after answering the highest call, with the upper compartment, but should this call be for the lower compartment the call is answered thereby. Load responsive means are provided to cause a fullyloaded compartment to by-pass landing calls which are then attended to by the other compartment of the car if that is not also fully loaded. Specification 711,515 is referred to.
Patent GB-112914-A (GB)
Title: Improvements in Glass Sheet Retaining Clips for use in Puttyless Glazing Systems.
Inventor: MERREDEW GEORGE EDWARD
IPC: E04D3/14
Filed: 1917-10-24
Abstract: 112,914. Merredew, G. E. Oct. 24, 1917. Glazing.-In p@tty-less glazing systems, the sheets are prevented from siding downwards upon the bars by means of end stops or clips a, b, b<1>, the part a being slotted as shown, arranged parallel with the bar. and secured thereto by means of a screw c, so that the clip is stidably adjustable with regard to the lower edge of the sheet. When concrete bars are used, a suitable nut for the screw c is grouted into the bar. The Specification describes and illustrates the application of the clip to several kinds of glazing-bars. In the modification shown in Fig. 4, the overhanging part b<1> of the clip is provided with a set-screw n which bears upon a metal bar p between which and the glass sheet is a strip of india-rubber or other resilient material o.
Patent GB-1461889-A (GB)
Title: Electric dust collecting apparatus
IPC: B03C3/38
Filed: 1974-04-08
Abstract: 1461889 Electrostatic precipitators ISHIKAWAJIMA-HARIMA JUKOGYO KK 8 April 1974 [23 April 1973] 15484/74 Heading B2J An ionizing device in an electrostatic precipitator having collecting electrodes 14 comprises control electrodes 2, 4, associated with co-acting electrodes 1, 5, the electrodes being arranged in staggered formation and connected to a dc supply 6 so that an inhomogenous electric field a is established between respective electrodes as shown; and discharge electrodes 3 positioned between the electrodes 2, 4 and connected to a pulse generator 9. An embodiment in which plate electrodes (18) replace the electrodes 1, 5 and with an additional controllable voltage source (17) connected to the electrodes 2, 4 is described with reference to Fig. 3 (not shown). The device may also have two or more stages, being provided with further assemblies of the electrodes 1-5 (Figs. 4 and 5, not shown).
Patent GB-1273922-A (GB)
Title: Method of continuous casting of metal with simultaneous rolling of solidified portion of ingot
Inventor: TSELIKOV ALEXANDR IVANOVICH
IPC: B22D11/14
Filed: 1970-04-01
Abstract: 1,273,922. Continuous casting; rolling. VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNOKONSTRUKTORSKY INSTITUT METALLURGICHESKOGO MASHINOSTROENIA. 1 April, 1970. No. 15510/70. Headings B3F and B3M. In a continuous casting process, an ingot after being withdrawn from a curved (3), Fig. 1 (not shown) or straight vertical mould is guided into a horizontal orientation and straightened by a set of straightening rolls (5). The ingot is heated by induction (at 6) and passes into a planetary mill (7) where the ingot is rolled on its edges. In the planetary mill a square ingot 4a is rolled on its edges K by sets of planetary rolls 19 on rotating frames 8, 9, 10, 11. Fig. 4 shows rolling of a hexagonal ingot 4c on its edges by six sets of planetary rolls 12 to 17. The rolling of octagonal and four-sided ingot with rounded edges on their edges is also disclosed. The rolled product passes to shears (20) to cut the product and to a further set of finishing rolls (21).
Patent GB-1131276-A (GB)
Title: Controllable amplifier for electric signals
IPC: H03G3/30
Filed: 1966-04-07
Abstract: 1,131,276. Gain control; colour television. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 7 April, 1966 [9 April, 1965], No. 15565/66. Headings H4F and H4R. In a controllable amplifier circuit adapted to receive from a source having a predetermined impedance an information signal and a reference signal, the circuit includes a transistor having both said signals and also a control signal applied to its base the impedance of which changes from a value higher than the source impedance to a value lower than the source impedance in response to the control signal, means being connected to an output of the amplifier circuit to select the reference signal and apply at least part thereof to a control circuit adapted to produce the control signal, which is applied to the base of the transistor so that the base impedance falls as the reference signal increases. An embodiment comprises a colour television receiver, in which demodulated video signals from detector 11 are applied via capacitor 4 to the base of an emitter-follower 1. The signal from the emitter is applied via capacitor 14 to a further amplifier 15, from the output of which the colour bursts are selected by means of selector circuit 16, which is driven with line flyback pulses 17. The output is fed to phase detector 18 and also via resistor 24 to transistor 20, which has a high-value base resistor 23 connected to a positive source, and acts as a rectifier. The output of this is smoothed by filter network 22, 27 and applied via resistor 8 as base bias to transistor 1, the input impedance of which is thereby caused to fall as the signal level increases.
Patent GB-1178152-A (GB)
Title: Apparatus for the Operation of Regulator Valves
Inventor: RENAULT ROBERT ROGER
IPC: H02K7/065
Filed: 1967-04-05
Abstract: 1,178,152. Ratchet mechanism. R. R. RENAULT. 5 April, 1967 [6 April, 1966 (2)], No. 15581/67. Heading F2Q. Ratchet mechanism comprises an output shaft 12 having a three-sided boss 11a, a ring 11 surrounding the boss 11a and attached to the armature 1 of an oscillating driving motor, jamming rollers 13 located between the sides of boss 11a and the ring 11, and means for moving the jamming rollers 13 selectively in either direction to wedge them between the boss 11a and the ring 11. The rollers 13 are mounted on shafts 14 secured to two spaced washers 15, one of which is engaged by the ends of springs 17 secured to a ring 20 which can be moved axially in order to move the rollers 13 in either direction to effect stepped rotation of the output shaft 12 in either direction. In a modification, a driving ring 11 is oscillated by a crank 27 engaging a slot 26 in an arm 25 integral with ring 11, the crank 27 being driven from a shaft 28 of a motor having a continuous rotary movement.
Patent GB-1460324-A (GB)
Title: Desks tables and the like
IPC: A47B13/00
Filed: 1974-10-21
Abstract: 1460324 Desks STEELCASE Inc 21 Oct 1974 15615/76 Divided out of 1460323 Heading A4H  The description is identical to the Parent Specification, but the claims relate to the inserts.
Patent GB-1127040-A (GB)
Title: Chain link and method for making same
IPC: B21L9/00
Filed: 1967-04-05
Abstract: 1,127,040. Chains. MORSE CHAIN CO. 5 April, 1967 [15 Aug., 1966], No. 15670/67. Heading F2Q. [Also in Division B3] In a drive link for an endless chain, a waist zone between teeth 14 is prestressed to increase fatigue resistance. 'The method of prestressing comprises forming a link blank with teeth 28, Fig. 3, having their.tips spaced apart a linear distance less than that desired in the finished link, applying a die 34 between the teeth 28 to force them apart a linear distance which-exceeds that desired in the finished link, and terminating the cold-forming operation at a point which permits the link to spring back to-the-desired dimensions. Favourable residual compressive stresses are induced in the region of the crotch 17. The prestressing is performed subsequent to any heat treatment of the link blank. A similar treatment may also be carried out on a link blank preform prior to the heat treatment.
Patent GB-272904-A (GB)
Title: Improved combustion-product power plant
IPC: F04B35/00
Filed: 1927-06-13
Abstract: 272,904. Brun, G. J. P. J. J. June 15, 1926, [Convention date]. Piston packing. - In an apparatus for generating products of combustion comprising internal-combustion cylinders, the pistons are provided with wedge-shaped piston rings 25 of soft metal, secured in straight or helical grooves by wedges 24.
Patent GB-1298173-A (GB)
Title: A method of forming conversion coatings upon metal surfaces
Inventor: CURRAN JOHN PATRICK
IPC: C23C22/76
Filed: 1971-05-19
Abstract: 1298173 Spray-treating metals AMCHEM PRODUCTS Ltd 19 May 1971 [20 May 1970] 15740/71 Heading C7U A conversion coating is formed on a metal by spraying it from an orifice on a hand-held wand, with (a) cleaning solution at 300 to 600 p.s.i.g. and 70 to 150F, and subsequently with (b) an appropriate chemical coating forming solution at 20 to 80 p.s.i.g. and 110 to 150F. A passivating spraying may then follow, e.g. at 20 to 80 p.s.i.g. and 130 to 160F. The metal surface may be ferrous or zinc, the cleaning solution may be alkaline and contain dissolved and/or suspended Ti salts, e.g. in colloidal form, and the coating solution may be a nitrite-accelerated zinc phosphate solution. Spraying of all three solutions is usually for 20 to 40 seconds, and preferably all are sprayed at the same temperature, from the same wand, which may have different nozzles for different solutions and pressures. Spraying with aqueous rinse solution may precede and/or follow application of (b) above.