baber/WOPTO huggingface dataset:
Patent GB-777482-A (GB)
Title: Improvements relating to electric street lighting fittings
Inventor: LAMBERT GEORGE KEMPTON
IPC: F21V7/04
Filed: 1954-09-21
Abstract: 777,482. Lantern reflectors. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 16, 1955 [Sept. 21, 1954], No. 27296/54. Class '75(2) A reflector system for a street lighting lantern comprises a first reflector 6 intercepting light from a source 3 over a vertical arc lying above a desired direction for a main beam 5 at one side of the lantern and directing the intercepted light on to a second reflector 7 in turn directing the light to augment the main beam 5 at the same side of the lantern and a third reflector 4 arranged back to back with the second reflector 7 for redirecting light, which would otherwise fall on the back of the latter, to augment the light emitted from the opposite side of the lantern. The system may be used with an elongated light source in which case a set of elongated reflectors is disposed symmetrically on opposite sides of the source to produce two main beams in opposed directions or it may be used with a point light source in which case each reflector may extend completely round the vertical axis through the source to produce a main beam of conical form. The first reflector 6 is elliptical with one focus at the centre F<SP>1</SP>of the light source and the other focus F<SP>2</SP> between the first and second reflectors 6, 7. The second reflector 7 is parabolic with its focus at the second focus F<SP>2</SP> of the first reflector and with its axis parallel to the main beam 5 at the same side of the lantern. The third reflector 4 is disposed inwardly of the first reflector 6 above the main beam 5 and is parabolic with its focus at the centre F<SP>1</SP> of the light source and with its axis parallel to the direction of the main beam at the opposite side of the lantern. In this embodiment the third reflector 4 also serves to intercept light which would otherwise pass below the edges of the hood 1 in a direction above the main beam. In a inodified construction the-second and third reflectors are disposed below the main beam and a fourth reflector forms a downward continuation of the first reflector and is parabolic with focus at the light source and axis parrallel to the main beam at the opposite side of the lantern. The third reflector in this case is planar with its plane preferably vertical and receives light from the source and from the fourth reflector on the opposite side. Specification 770,518 is referred to in the Provisional Specification.
Patent GB-726776-A (GB)
Title: Weighing machine
IPC: G01G5/04
Filed: 1951-11-21
Abstract: 726,776. Weighing-apparatus. CRAWFORD, R. A. Nov. 21, 1952 [Nov. 21, 1951], No. 27347/51. Class 143. A weighing machine comprises a vertically movable platform 1 suspended from and wholly supported by at least one vertical ram cylinder 7 in which is slidable a ram 6 engageable directly with a rigid support 5<SP>1</SP>, the cylinder 7 forming part of a closed hydraulic system, the pressure of which is indicated on a gauge 8. The platform may be guided vertically by links 9, each pivoted at one end to the platform and at the other end to the support 5<SP>1</SP>, and may be the bottom of a wire mesh cage 2 with a door at one or each end for weighing animals. The support 51 may include a bridge member 5 passing transversely through the cage, and connected through the ram and cylinder to a cross member 3 of the cage above the bridge member.
Patent GB-1416869-A (GB)
Title: Fibrillation apparatus
IPC: D21D1/38
Filed: 1971-12-31
Abstract: 1416869 Fibrillating apparatus CHISSO CORP 27 Nov 1972 [31 Dec 1971] 27377/75 Divided out of 1416868 Heading B5B The subject matter of this Specification is identical with that relating to the fibrillating apparatus described in Specification 1,416,868 but whereas the claims of the latter are concerned with process and product, the claims of this specification are concerned with the apparatus.
Patent GB-144552-A (GB)
Title: Improved apparatus for feeding or delivering molten material, such as glass, in separate lumps or charges
IPC: C03B7/084
Filed: 1919-11-06
Abstract: 144,552. Pratt, W. L., (Rankin, C. H., Blumenauer, C. H., and Pratt, C. J. P.). Nov. 6, 1919. Delivering molten metal; shearing.-Relates to apparatus for delivering uniform charges of glass or other molten material from a tank furnace. According to the invention, the charge during extrusion is surrounded by a tubular member or box to prevent chilling, the box being movable downwards to permit shears to operate close to the orifice. The apparatus is operated by pneumatic power, the timing of the various movements being controlled by a valve of the kind described in Specification 143,794. The molten metal G flows from a hole H in the bottom of a bay T in the melting tank, the rate of flow being made to fluctuate by the rise and fall of a plunger 11. As the plunger 11 rises after the delivery of a charge, a water-cooled conical box 13 is raised against the tank bottom by the action of the piston 34 and levers 27, 31. A slide 14 is moved to the left by a piston 19 so as to close the bottom of the box 13, and a blast of air and gas issues from a hole 15. This drives the molten metal back into the hole H and also re-heats it. The slide 14 is then drawn aside, the box 13 is lowered and the plunger 11 descends, causing the delivery of a charge which is cut off by shears 50. The shears are operated bv a piston 59 having a cushioning-valve 66 to reduce shock when the shears 50 open. The box 13 and the gear connected with it are mounted on a slide 36 which can be moved to the right by a piston 39 so as to move the box 13 clear of the hole H. An oil spray is provided to cool the shears 50. In a modification, the plunger 11<a>, Fig. 9, is formed with a chamber 11<b> in which the air pressure is varied by means of a pipe 10<a> so as to assist the action of the plunger in expelling the charges from the hole H.
Patent GB-799083-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: B21C37/26
Filed: 1956-09-06
Abstract: 799,083. Making gilled tubes. CARRIER ENGINEERING CO., Ltd. Sept. 6, 1956 [Nov. 25, 1955], No. 27389/56. Class 83 (2). [Also in Group XIII] A tube 10 for intended use in the manufacture of a serpentine heat-exchanger element is provided with groups of fins thereon the fins 12 of one group being of lesser diameter than are the fins 13 of the groups on either side thereof. In the preferred form a single helical fin is formed by winding on to the tube a ribbon of suitable width and thickness the width of the ribbon being reduced at intervals by a slitting device before the winding operation, so that the narrower portions of the ribbon form the fins 12 of lesser diameter than the fins 14 formed by the wider ribbon portions when the ribbon is wound on to the tube. Ultimately the tube is bent to a serpentine form, as shown in Fig. 2, the reduced diameter of the fins 12 at the bend portions enabling bends of relatively small radius to be formed.
Patent GB-620664-A (GB)
Title: Improvements in and relating to cuttings-conveyor mechanism for coal cutting machines
IPC: E21C35/20
Filed: 1945-10-19
Abstract: 620,664. Coal-cutting machines. SULLIVAN MACHINERY CO. Oct. 19, 1945, No. 27499. Convention date, May 8. [Class 68 (i)] Relates to cuttings - conveying. means for a shortwall coal-cutting machine having within its frame a chamber which receives cuttings brought back by the kerf-cutting means, said conveying mechanism having a casing attachable to the coal-cutter and containing a chamber receiving the cuttings from the first chamber horizontally-swinging ejecting means being mounted in the second chamber, and consists in pivotally mounting the ejecting means at one side of the casing so that it projects horizontally towards the other side and sweeps the cuttings rearwardly. As shown, a casing 12, Figs. 5 and 6, is secured to the rear end of the machine to receive cuttings deposited by the cutter chain 5, the casing containing oppositely rotating cuttings-conveyers each comprising a horizontal circular disc 16 at the base of the casing, each disc 16 having an upstanding crank 19 on which is mounted an annulus 34, a pusher-arm 39 being pivoted at 41 to the casing and at 37 to the annulus 34 and being oscillated thereby to push cuttings rearwardly from the disc 16. The annuli 34 are out of phase to provide a wide space between them. One of the cuttings-conveyers is driven from the machine driving motor through a shaft 43, a frictional cone clutch 45, shaft 48, reversing bevel gearing 52 ... 54, shaft 55, and pinions 65, 66; from this cuttings-conveyer the other is driven in the opposite direction by a train of gears; the clutch member 56 of the reversing bevel gearing drives the shaft 55 through a spring-pressed pawl whereby reverse driving of the cuttings-conveyers is prevented. The lower surfaces of the discs 16 have spiral ribs 72 which move outwardly any cuttings &c. from below the discs. In another form, Fig. 10, the cuttings-conveyers each comprise upper and lower discs 76 connected by a crank 77, an, arm 86 extending vertically between the' upper and lower discs and being pivoted to the crank 77 and to a pusher arm 88, the other end of the latter being pivoted at 89 to the casing.
Patent GB-413256-A (GB)
Title: Improvements in cleaning or polishing operations
IPC: C11D7/50
Filed: 1932-10-04
Abstract: Surfaces coated with cellulose-ester lacquer are cleaned and polished by rubbing with o-dichlorbenzene.  A solvent or polishing agent may be added.  For example, spots of tar or pitch are removed from a cellulose lacquered surface by rubbing with a woollen pad impregnated with crude o-dichlorbenzene obtained as a by-product in the manufacture of p-dichlorbenzene; the surface is then rubbed with a dry pad and, if necessary, is repolished. Specification 413,254 is referred to.
Patent GB-1154848-A (GB)
Title: Flaked Ice Dispenser
IPC: F25C5/00
Filed: 1966-06-21
Abstract: 1,154,848. Ice dispensers. KING-SEELEY THERMOS CO. 21 June, 1966 [24 June, 1965], No. 27733/66. Heading A4T. A flaked ice dispenser comprises a refrigerating apparatus 18-24, Fig. 2, from which a controlled flow of particulate ice is conveyed at 26 to the top of a dispenser 28 disposed in front of the refrigerator. The dispenser comprises an outer insulated cylinder 30, Fig. 4, having a bottom 34 containing a drain outlet 44, a dispensing opening 40 and a bin bearing 86 and contains an inner cylindrical bin 46 receiving ice from the refrigerator, the bin being connected to two vanes 60, 62 secured to a vertical central shaft 58 rotatable by a motor 122. The open bottom of the bin rotates at the edge of a plate 50 having a bayonet connection 54 with the cylinder 30 and containing an oval discharge opening 138 having a raised scraper 140 on one edge. Beneath the plate 50 is a pair of diametrical discharge shutters 144, 150 secured to and rotatable at 146 by the shaft. Beneath the ice outlet 40 in a space 14, Fig. 2, for receiving a container is a water spout 25 and a switch 167 actuated via a flap 168 by the container. In front of the dispenser is a 4-position switch by which (a) continuous ice, (b) metered ice, (c) minimum ice and water, and (d) maximum ice and water may be dispensed. In position (d) the motor rotates the bin and cams 158, 163, Fig. 9, mounted at the top of shaft 58 beneath the motor, through 360 degrees and, while the flap 168 is depressed, a solenoid valve dispenses water at 25 for mixing with ice falling through openings 138, 40. When a switch arm 162 moves round the cam 158 and on to the flat 160, ice dispensing stops except that it must stop with a shutter 144 or 150 covering openings to prevent contamination of the ice. This is achieved by a switch arm 169 which stops on a flat 164 of cam 163 when either of two switch arms 162, 166 are riding off their flats 160, 164. For position (c) cam 163 rotates only 180 degrees to dispense the minimum of ice, the circuitry allowing the motor to stop after switch arm 166 rides from one flat to the opposite flat 164 on cam 163, the arm 169 again positioning the shutters to close the openings. Water will be dispensed after the ice has stopped so long as flap 168 is depressed. In position (b) the metered ice vend cycle is identical with that of position (c) in that cam 163 rotates 180 degrees but the solenoid water valve is kept closed. In position (a) ice without water is continuously dispensed until either depressed flap 168 is released or until the bin is exhausted. The conveyer 26 refils the bin under the control of two series switches actuated by a lever and a flap responsive to the level of the ice in the bin. The water drained at 182 may be released, directed to an evaporation tray or pumped at 186, 188 back to the refrigerator.
Patent GB-382728-A (GB)
Title: Improvements in or relating to electrical contactors
IPC: H01H33/32
Filed: 1931-10-06
Abstract: 382,728. Heavy current switches. WEST & CO., Ltd., A., MALLOCH, R. M., and PADDOCK, W. J., Lewes Road, Brighton. Oct. 6, 1931, No. 27759. [Class 38 (v).] Pneumatic actuation.-In a pneumaticallyoperated contactor, in order to facilitate the inspection and cleaning of the contacts, the cylinder containing the operating piston to which the movable contact is attached is secured to the fixed structure of the contactor by means of a pivotal 'connection so that the cylinder may readily be swung about this pivotal connection. As shown in Figs. 1 and 2, the cylinder 17 formed with a downwardlyextending lug 22 which is mounted to pivot about the rod 23 this rod being mounted in lugs 24 secured to the fixed structure. Within the cylinder is a piston 26 the piston-rod 25 being secured by a moulded connecting member 27 to the movable contact member which consists of a contact tip 18 carried by a bell crank 32 pivoted at 31 to a bracket 29 carried by the connecting member 27. The 'bell crank 32 is under the action of a spring 34 which ensures rolling contact during the engagement of the - tip 18 with the relatively fixed contact 3. Thus when the cylinder 17 is released by removing screws 24a and swung about the pivot pin 23, it carries'with it the whole of the movable contact structure Alternatively 'the 'pin 23 may be detached and the cylinder and movable contact structure completely detached. The movable contact carries an arcing tip 5b and a corresponding arcing tip 5a is mounted adjacent the fixed contact 3. A magnetic blow-out coil 4 is mounted above the contact structure and is arranged in series with the contacts. The arc is confined between insulating barriers and'side-plates 44, 45, 48. The movable contact in operation operates interlock contacts by carrying an insulating block fitted with contacts 39, 40 which are engaged by a relatively fixed springy contact in the " off " and" on positions of the main contact member. A depending arm 36 working in a slot 38 prevents the rotation of the' piston and moving contact member during operation. The fixed structure of the contactor is carried by a pair of vertical arms surrounded throughout a portion of their length by insulating sleeves 2.
Patent GB-1285528-A (GB)
Title: Improvements in tensioning devices for endless flexible drive members
IPC: F16H7/08
Filed: 1971-06-14
Abstract: 1285528 Chain terisioners TSUBAKIMOTO CHAIN Ltd 14 June 1971 [16 June 1970] 27812/71 Heading F2Q In an I.C. engine cam-shaft timing chain tensioning device comprising a rubber shoe tensioning head 3 mounted on a plunger 2 slidably mounted in a fixed housing cylinder 1 and urged outwardly by a spring 4, the plunger 2 is formed with rack teeth 5 engaged by an eccentrically mounted locking pinion 6 lightly torsionally urged by a hairpin spring 8 about a pivot 7 into engagement with the rack teeth 5 whereby the locking pinion 6 may ratchet over the rack teeth 5 to permit outward movement of the spring urged plunger 2 to automatically maintain correct chain tension but is selflocking i.e. moves into jamming engagement with the rack teeth 5 on the plunger 2 to prevent return movement thereof beyond a small amount of play, selectable by choice of the eccentricity e of the pivotal mounting of the locking pinion 6, when the tensioned chain oscillates or whips under the effect of sudden and severe shock loads or vibration.
Patent GB-226331-A (GB)
Title: Improvements in or appertaining to the drawing out mechanism for spinning mules
IPC: D01H3/04
Filed: 1923-11-06
Abstract: 226,331. Gray, J. W., and Clayton, J. Nov. 6, 1923. Mules.-To keep the carriage square, a number of pulleys 2, 2<a>, 2<b> are adjustably mounted on a bracket 3 secured to the end of the carriage 4, and a rope 5 secured at one end to a stud 8 on the frame 7 and at the other end to a ratchet tightening drum 6<a>, is passed round the pulleys. The stud 8 and drum 6<a> are arranged slightly out of line with the pulleys 2, 2<b> so that the device will act to check the carriage as it reaches the ends of the run. A sheet-metal guard may be placed over the pulleys.
Patent GB-915547-A (GB)
Title: Mirror
IPC: B60R1/02
Filed: 1961-08-01
Abstract: 915,547. Mirrors. FORD MOTOR CO. Ltd. Aug. 1, 1961 [Aug. 26, 1960], No. 27923/61. Class 97 (1). [Also in Group XXXII] A mirror, particularly a rear-view mirror for automobiles, which is perceptibly free from double images when viewed from a distance of 15 inches or more, comprises a thin sheet of transparent material with parallel front and back surfaces, the back surface being reflecting. The thickness of the transparent material is preferably between 0.003 and 0.006 inch and the refractive index is preferably between 1.52 and 1.7 and a backing material supports the transparent sheet behind the reflecting surface. Such a mirror may be made by pressing a transparent sheet of material 11 of the correct thickness on to a paraffin wax coating 18 on a mould 16, Fig. 2, by means of a pressing-tool 14, a layer of unsized paper 19 protecting the transparent material from scratching by the pressing-tool 14. The assembly is then placed in an hydraulic press while the mould is maintained warm enough to keep the paraffin wax coating 18 from hardening. A pressure of approximately 50 lbs. per square inch is employed and this pressure is maintained until the mould 16 is cooled below the hardening temperature of the paraffin wax. Thereafter the pressing-tool is released, the unsized paper removed, and the exposed surface of the transparent sheet 11 is then washed with soap and water and scrubbed as with nitric and chromic acid followed by a distilled water rinse. The exposed surface is then made reflective as by evaporation of metal. A backing material 13 as of synthetic resin, e.g. an epoxy resin, is then cast on to the reflective surface. For this purpose a flexible band 20, Fig. 3, is placed around the mould to form a receptacle 21 in which this backing material 13 may be poured. The backing material is in liquid form and at a temperature which will not melt the paraffin wax coating 18. When the backing material is sufficiently hardened the mirror assembly is removed from the mould 16 and a grinding operation may then be carried out to finish the edges of the mirror.
Patent GB-1087580-A (GB)
Title: Improvements relating to the coating of steel with nickel
Inventor: ASHCROFT THOMAS BRIAN
IPC: B22F7/04
Filed: 1965-07-01
Abstract: An aqueous slurry containing Ni powder or a mixture of Ni and Cn powder containing up to 90% Cu, is applied to a steel strip, dried, hot rolled below sintering temperature, annealed and then rolled to full density.  Methyl cellulose is added to the slurry as a binder and the coated strip may be pre-heated to 500 DEG -650 DEG C. in cracked ammonia prior to hot rolling at 200 DEG -650 DEG C. in a reducing atmosphere when the temperature is above 500 DEG C. Annealing is effected in cracked ammonia up to 800 DEG C. preferably at 600 DEG -700 DEG C. the final rolling is preferably cold rolling in two stages with intermediate annealing but hot rolling may also be used.  Final annealing is carried out up to 800 DEG C.  The Ni powder has a particle size of 3 to 4 microns and the slurry surfactants such as polyoxyalkylated polyalkylene glycol and silicone anti-foam emulsion.
Patent GB-389889-A (GB)
Title: Improvements in or relating to reciprocating devices for sieves, conveyors or other suspended apparatus
IPC: B07B1/42
Filed: 1932-06-29
Abstract: 389,889. Mechanism for reciprocating sieves, conveyers, &c. COONEY, A., 44, McBride Street, Garston, Liverpool. June 29, 1932, No. 28034/31. [Class 117.] Mechanism for imparting reciprocating movements to sieves, conveyers, &c. of the type comprising two unbalanced weights rotating in opposite directions, consists of a hollow pulley 14 carrying one weight 15 and acting as the driving means, and a second weight 21 of equal radius to the first mounted inside the hollow pulley and deriving its opposite rotary movement therefrom through bevel gearing 16, 17, 18, 23. The pulley and weight are mounted on a stationary spindle 12 carried in a bracket 11 secured to the reciprocating machine. The transmission gears 17, 18 are mounted on a cross-arm 19 on the spindle. A stationary gear casing 26 is supplied with lubricant through a passage 25 in one end of the spindle.
Patent GB-1167531-A (GB)
Title: Helmets
Inventor: LOBELLE MARCEL JULES ODILON
IPC: A42B3/22
Filed: 1966-06-23
Abstract: 1,167,531. Helmets. M. L. AVIATION CO. Ltd. 14 July, 1967 [23 June, 1966], No. 28080/66. Heading A3V. A helmet incorporates a visor, a holder for an electrically ignited cartridge, a chamber in which pressure rises as a result of ignition of a cartridge and a pressure responsive member located in the chamber and connected through mechanism to the visor whereby on ignition of a cartridge the visor is lowered. Gas produced on ignition of a cartridge in a holder 5 passes along a pipe 6 into a block 25 and through a passage 30 therein to a cylinder 32. Here it causes a piston 33 and piston rod 24 to move to the right as viewed in Figs. 1 & 5. The rod engages a resilient blade 34 of an arm 18 which is pivoted to the helmet shell at 19 and therefore travels in an anti-clockwise direction, moving a link 20 pivoted to the lower end of arm 18 to the right. A pin 21 carried by the link is located in a slot 22 in a visor side piece 3 so that movement of the link to the right rotates the side piece 3 in an anti-clockwise direction if the visor is in the raised position, thus lowering the visor and drawing it rearwardly. If the visor is already lowered it is merely drawn rearwardly, guided by a pin 16 on the shell engaging in a slot 15 in the sidepiece 3. A lug 43 on the sidepiece is moved into a recess 44 under the edge of the block 25 and prevents the visor being raised inadvertently. If the user wishes to raise the visor before the pressure in the cylinder 32 has fallen he pivots a lever 52 in the clockwise direction which first causes the lug to be released and then raises the visor. The lost-motion connection at 21, 22 enables the visor to be lowered manually if desired.
Patent GB-442787-A (GB)
Title: Improvements in and connected with attic ladders
IPC: E04F11/04
Filed: 1934-10-02
Abstract: 442,787. Loft-ladders. GIBSON, J. W., 46, Wallace Street, Ayr. Oct. 2, 1934, No. 28139. [Class 20 (ii)] A loft-ladder comprises two substantially equal portions of ladder A, B, hinged together at C, the upper portion B being provided with rollers L at its upper end adapted to roll on the floor of the loft and engage the edge of the loft opening to support the ladder in extended position. When collapsed, the upper end of the ladder portion B rests against a stop J, the ladder portions being then in the form of an inverted V, cords E and counterweights G assisting the raising of the ladder into the loft. The trap - door may also be counterweighted.