baber/WOPTO huggingface dataset:
Patent GB-222925-A (GB)
Title: Improvements in devices for feeding refuse from the bins or hoppers in which it is stored
IPC: B65G17/10
Filed: 1923-07-04
Abstract: 222,925. Heenan & Froude, Ltd., Wareham, R. C., and Jackson, J. July 4, 1923. Loading-hoppers; shoots.-For feeding refuse slowly from a storage hopper A to a destructor or to screens, elevators &c., a travelling band B with upstanding projections b<1> is arranged in the bottom of the hopper to carry the material through an adjustable outlet O to a shoot a<1> which delivers the material forwards from the hopper. The regulating device C at the outlet comprises a member c<1> adjustably mounted as shown in Fig. 5, or in Fig. 6, or operated by rack and pinion or other gear.
Patent GB-1497217-A (GB)
Title: Process for the preparation of cyanuric acid
IPC: C07D/
Filed: 1975-04-25
Abstract: 1497217 Cyanuric acid STAMICARBON BV 25 April 1975 [26 April 1974] 17308/75 Heading C2C  Cyanuric acid is made by heating urea and/or biuret dissolved in a solvent from which vapour is being removed, and in the presence of a carboxylic acid or its anhydride or ammonium salt, the acid having a boiling point higher than the reaction temperature used and being soluble in the reaction medium to the extent of at least 0À1% by weight.
Patent GB-365964-A (GB)
Title: Process for converting into soluble salts lead and other metals contained in lead bearing ores
IPC: C22B3/06
Filed: 1931-06-15
Abstract: Lead-bearing ores are roasted at say 460-490 DEG  C. in the presence of a small quantity of calcium sulphate and of an alkali or alkaline-earth chloride, the quantity of the latter employed being preferably much less than is required for chlorination of the whole of the lead present.  The roasted ore is then treated with a strong acid such as hydrochloric or sulphuric acid to decompose any unconverted sulphide or residual oxide, and then with brine, say at 85-100 DEG  C. to extract lead and silver as chlorides.  Copper and zinc, if present, are first extracted from the acid-treated product by lixiviation.  From the chloride solution silver is separated as by spongy lead, and lead chloride recovered by cooling and crystallization.
Patent GB-615750-A (GB)
Title: Snap disk springs
IPC: F16F1/32
Filed: 1946-06-11
Abstract: 615,750. Making springs. PIERCE FOUNDATION, Inc., J. B. June 11, 1946, No. 17426. Convention date, Dec, 19, 1945. [Class 83 (ii)] [Also in Group XXXII] Forging-dies.-A die assembly for producing the bowed configuration of a snap disc spring 20, Fig. 15 (see Group XXXII) comprises an anvil 32, Fig. 12, and a hammer 34 which are both provided with raised annular-shaped projections 32a to compress the shaded portions 40 of the spoked portions of the disc spring between them. The hammer is located on the anvil by a pin 36 entering an aperture 37. By this means a disc spring having two positions of stable equilibrium is produced. To produce a disc spring having one position of equilibrium, the compression stresses produced by the die are relieved by heat treatment. The disc springs may be made from beryllium-copper alloys, phosphor bronze, nickel alloys, spring steel or plastics having appropriate spring characteristics.
Patent GB-123782-A (GB)
Title: Improvements in and relating to Foldable Cuffs for Shirts and the like.
Inventor: PRESTWICH FRANK MILTON
IPC: A41B7/10
Filed: 1917-11-26
Abstract: 123,782. Prestwich, F. M. Nov. 26, 1917. Fashioning, weaving to facilitate; strengthened fabrics with integrally-woven portions having crammed or thicker yarns. - A reversible shirtcuff is provided with an interlining formed of two parts 4, 5, connected by a weaker part 7 to form the fold of the cuff. The interlining may be woven thicker at 11, 12 and provided with selvedges 13 connected by single warp threads; or it may be woven thinner at the fold than adjacent thereto.
Patent GB-805506-A (GB)
Title: Improvements in or relating to harvesting machines for potatoes and other root crops
IPC: A01D33/04
Filed: 1956-06-07
Abstract: 805,506. Harvesting machines. JOHNSON, T. S. May 9, 1957 [June 7, 1956], No. 17611/56. Class 6(3). [Also in Group II] A riddle or shaker for use with a harvesting machine comprises a grid formed of inclined rods 1 which diverge towards the discharge end of the grid. The rods are secured to a rectangular frame formed by a U-shaped member 2 with a cross-bar 3 slung between lugs projecting downwards from the member 2. A bar 4, secured to the transverse limb of the member 2 and inclined to its plane, has apertures to receive the upper ends of the rods 1, the other ends of which are supported by abutments upstanding from the cross-bar 3, the apertures in the bar 4 being closer to one another than are the said abutments. One end of the frame is mounted between link pivots 5 attached to brackets 6 carried by a part 7 of the main frame of the machine ; the other end is mounted between link pivots 8, secured to members 9, 10 of the machine frame. The frame 2 is reciprocable through a link 14, a bell-crank 11 and a rod 15 connected to the power shaft of the machine, the bell crank 11 being carried by a bearing member 12 supported on a bracket extension 13 on the frame member 7. Short side rods 16 are mounted above the two outermost rods of the grid to act as guides. The rods 1 may be rubbercoated.
Patent GB-1221967-A (GB)
Title: Conveyor chain and system
Inventor: FRISK LESLIE LEONARD
IPC: B65G17/06
Filed: 1968-04-11
Abstract: 1,221,967. Endless conveyers. ALTO CORP. 11 April, 1968 [24 April, 1967], No. 17613/68. Heading B8A. [Also in Division F2] An endless chain conveyer for movement about horizontal and vertical axes comprises a plurality of pairs of links 31, 32, each pair having one link 31 of general U-shape in plan, with a slot 37 in the bight 34 thereof to receive the leg 35 of a T-shaped link 32, the crossbar 36 of which engages within the bight 34 to allow movement about a vertical axis. The leg 35 has an aperture 38 for alignment with apertures 39 in the legs 33 of a succeeding link 31 to receive a pivot pin 40 to allow movement about a horizontal axis. The front and rear edges of the U-shaped link have slots 42, 43 to receive and support the middle portion 45 of elongated wire loops 44 forming the support surface of the conveyer. The outer extremities of the loops are supported by stationary members 51 with antifriction coverings 52 and the chain is guided around curved paths by similar members 53. The drive is provided by a series of coupled or independently driven sprockets (66), Fig. 14 (not shown), which engage rollers (46), Fig. 9 (not shown), fitted to lateral extensions of the pivot pin 40. A plate (69) disposed above each sprocket (66) maintains the rollers in contact therewith. The conveyer may be used for conveying bread &c. through a cooling compartment comprising a pair of spaced shafts (24), (25), Fig. 2 (not shown), with a number of horizontally disposed discs (22), (23) the conveyer extending between the shafts and around the discs in a spiral configuration. The shafts (24), (25) may also be driven, the discs 22, 23 having notches (61) at the periphery thereof to engage the chain.
Patent GB-604905-A (GB)
Title: Improvements in and relating to processes and dies for extruding tubular products
IPC: B21C25/00
Filed: 1943-10-26
Abstract: 604,905. Extruding tubes. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 26. 1943, No. 17623. Convention date, Oct. 30, 1942. [Class 87 (ii)] The extruded tube 17, of a hard metal plastic composition, is supported by a solid carbon rod 16 secured to the mandrel 6. The rod 16 may be replaced by a hollow carbon tube or spiral. When a desired length of tube has been extruded it is cut off at the base of the die and the rod 16, with the tube thereon, is detached from the mandrel 6. The tube is then dried and sintered. and the rod 16 (or tube or spiral) is pushed or bored out of the sintered tube. The mandrel 6 depends from the hub of a wheel-like member having spokes 9, the rim of the wheel being secured between the extrusion cylinder 1 and the die 4. The mandrel is connected to the hub by spaced members which leave apertures 14.
Patent GB-941970-A (GB)
Title: Improvements in or relating to bale-discharge means
IPC: A01D87/12
Filed: 1962-05-08
Abstract: 941,970. Conveyers. INTERNATIONAL HARVESTER CO. May 8, 1962 [Nov. 21, 1961], No. 17623/62. Heading B8A. [Also in Division F2] A bale of hay (not shown) from a bale-forming chamber 10 is pushed by the pressure of following bales up a ramp comprising tubular members 33, 34 and depresses a lever 54 which actuates a clutch (see Division F2) to engage the drive from a motor 20 to an endless chain 46 with baleengaging projections. The bale is thus accelerated up the ramp and discharged into a trailing wagon (not shown). As soon as the bale has passed over the lever 54 the lever reverts to its normal position and the clutch disengages the drive.
Patent GB-1121294-A (GB)
Title: Improvements in furnaces
Inventor: EVANS CHRISTOPHER CHARLES
IPC: H05B3/62
Filed: 1963-10-28
Abstract: 1,121,294. Electric resistance furnaces. MINISTER OF TECHNOLOGY. 28 Jan., 1965 [28 Oct., 1963; 20 Oct., 1964], Nos. 17728/68 and 19966/68. Divided out of 1,121,293. Heading H5H. [Also in Division F4] A furnace, suitable for carrying out high temperature chemical reactions producing ceramic whiskers as described in the parent Specification, comprises a hollow casing lined internally with thermally insulating material 4 and enclosing a reaction space, a carbon resistance heating element 9, a container 7 for solid chemical reactant 15 with an inlet pipe 8 for the passage of gas therethrough, and an inlet pipe 5 and outlet pipe 6 for the passage of gases directly into the reaction space and subsequent removal therefrom. Argon gas passes through inlet 8, through a pre-heating bed 16 of carbon granules and then through a heated bed 15 of silicon/silica mixture to carry silicon-containing vapours formed in bed 15 into the reaction space to react with nitrogen and hydrogen or hydrocarbon gas, passed directly into the space through inlet 5, to form silicon nitride whiskers which grow on surfaces 17 provided in the furnace. Auxiliary heating means (not shown) on container 7 allow for temperature regulation thereof, a thermocouple 14 being provided for the furnace. Element 9 has water-cooled ends.
Patent GB-236951-A (GB)
Title: Improvements in x-ray screens
IPC: G21K1/02
Filed: 1925-07-10
Abstract: 236,951. Mannl, R. July 11, 1924, [Convention date]. R÷ntgen-ray apparatus. - In a screen for intercepting secondary radiations, the height of the radial plates 1, Fig. 4, decreases towards the centre. The density of the plates may also decrease towards the centre as by decreasing the thickness. The same decreases are applicable also for spiral or other formations of the plates. The plates may further be embedded in a material, the permeability of which to X-rays varies towards the centre. The casing for the screen, mav be fitted with an arched cover 2 permeable to X-rays, which can compress soft parts of an illuminated body. The Specification as open to inspection under Sect. 91 (3) (a) also includes the arrangement shown in Fig. 5 (Cancelled) in which the screen casing 4 is connected by a crank 5 to a handle 6 which is in a protected position. This subjectmatter does not appear in the Specification as accepted.
Patent GB-470132-A (GB)
Title: Methods of and means for the formation and utilisation of gaseous couples
IPC: H02M11/00
Filed: 1936-06-26
Abstract: 470,132. Charging and discharging batteries; rectifying alternating current. MULLER, H., and STEIN, W. June 26, 1936, No. 17827. Convention date, June 28, 1935. [Classes 38 (ii) and 38 (iv)] An alternating or fluctuating current is converted into a direct current of constant voltage by the rapid alternate formation and discharge of gas on the electrodes of a primary battery, the inherent capacity of the battery being only drawn upon in the event of failure of the supply. In the arrangement shown in Fig. 1, a primary battery E is alternately connected by a rapidly moving switch v to a D.C. supply G1 and to a load W. Rectifiers V1, V2 are associated with the battery B and the load W, as shown in Fig. 2, to utilize half waves of an A.C. source supplied through a transformer Tr. In a modification for a D.C. source of fluctuating voltage, a checking means consisting of a choke combined with a rectifier is included in the circuit. In a further modification, two batteries and rectifiers are combined with a transformer and load to effect full wave rectification.
Patent GB-745902-A (GB)
Title: Apparatus for biological assay
Inventor: SCHILD HEINZ OTTO
Filed: 1952-07-16
Abstract: 745,902. Assaying drugs. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 13, 1953 [July 16, 1952], No. 17986/52. Class 81(1). The invention is concerned with apparatus for the assay of drugs by measuring their effect on a living organ 1, which is attached to a bridge 8 in bath 3, and connected by filament 2 to a recording device 5, 6, 7. Vessel 3 is supplied in proper sequence with drug solutions from reservoirs 14, and saline solution and drug antagonist solution respectively from the two larger vessels, the liquid supply being occasioned by the admission of air through electrically-operated valves 17. Such a valve is shown, consisting of a rubber tube normally pinched under a spring-urged pin, but released when an associated relay is energised. The liquids are supplied to the bath through a water jacketed pipe 10, and are discharged through a similar valve 18. Oxygen is supplied through pipe 9a to the bath which is provided with a water jacket 4. The invention relates primarily to the actuation of the relay-operated valves, the relays being energized in appropriate order through one bank C1 of a uniselector, the wipers of which are shifted at intervals determined by a timing device itself controlled through at least one further bank of the uniselector. As shown, bank A1 selects a predetermined resistance R between the cathode and control grid, and bank A2 a predetermined capacitance C between earth and the control grid, of a pentode valve 27, so that relay T is energized by a series of pulses of predetermined time intervals, closing contact T3 to energize drive magnet DM1 of the uniselector. The bank A2 of a second uniselector provides for the energization of the relays controlling the drug admission-valves, a different drug being chosen during each cycle of the first uniselector, and the order of the addition of the drugs being preselected in a random manner by a crossconnection field indicated at 26.
Patent GB-693444-A (GB)
Title: Improvements relating to the correction of spherical aberration in electron lenses
Inventor: HAINE MICHAEL EDWARD
IPC: H01J29/56
Filed: 1950-07-19
Abstract: 693,444. Electron lenses. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd. June 15, 1951 [July 19,1950], No. 18055/50. Class 39(i). The positive spherical aberration of a magnetic or electrostatic lens is compensated by the negative spherical aberration of a system of two or more planar conductive electron-permeable foils held at suitable potentials. The system preferably comprises three foils of which the middle one is negative with respect to the outer two, but may alternatively comprise four or two foils. In the former case the two inner foils are negative with respect to the two outer foils and the spacing between the two inner foils is greater than the inner-outer foil spacing. In the latter case the foil further from the electron source is negative with respect to the other foil. Equations for the spherical aberration of the foil systems are given, and the arrangements are especially applicable to electron microscopes. A single foil would work in theory owing it is stated to the potential inside the foil being negative with respect to the potential outside it but the foil would have to be so thick that electrons could not penetrate it.
Patent GB-381169-A (GB)
Title: Improvements relating to the junction of the ends of wire cloth or fabric
IPC: B21F27/14
Filed: 1931-06-22
Abstract: 381,169. Wire-cloths for papermaking machines. BUCHANAN, J. R. and CRAY, T. M., 24, Hamilton Avenue, Ottawa, Canada. June 22, 1931, No. 18084. Convention date, Feb. 9. [Class 96.] To join the ends of paper-making machine wire-cloth &c. the warp wires 5,' 6 of one end are united by soldering, welding, fusing or brazing to the marginal weft wire 4, and the wires 5, 6 are then cut in a line flush with the outer edge of the wire 4. The warps 51, 61, Fig. 2, of the other end are then united to the weft wire 7 next to the marginal weft wire 8, and these warps 5<1>, 6<1> are then cut along a line B. Finally the cut ends are abutted and united by soldering &c. The wires 5<1>, 6<1> may abut the wires 5, 6 or may contact with the wire 4.
Patent GB-296366-A (GB)
Title: Improvements in devices for preventing overflow of liquid contents of receptacles when boiling
IPC: A47J27/60
Filed: 1928-06-22
Abstract: 296,366. Canavoso, G. F., and Juhel, M. Aug. 30, 1927, [Convention date]. Heating and cooking v e s s e l s ; convection currents, promoting. - A device for preventing the boiling-over of milk and similar liquids comprises a circular disc of transparent material formed with a thickened edge band having on each face a concave portion c, these being arranged symmetrically with respect to a diameter. Depressions d may be provided to facilitate escape of vapours from the concavities.
Patent GB-381538-A (GB)
Title: Method for the manufacture of inclined concrete piles moulded in the ground
IPC: E02D7/28
Filed: 1931-06-23
Abstract: 381,538. Piles and pile drivers. COMPAGNIE INTERNATIONALE DES PIEUX ARMES FRANKIGNOUL SOC. ANON., 196, Rue Gretry, Liege, Belgium. June 23, 1931, No. 18209. Convention date, June 23, 1930. [Class 68 (ii).] Inclined piles are cast in situ in a preparatory tube, which is driven by a monkey guided along a track into the tube. Fig. 3 shows a pile driver with a track b movable from the vertical to an inclined position as shown. A tube a is guided down this track, is driven by a monkey f, and is filled with concrete in the manner described in Specification 327,644, [Class 68 (ii), Subaqueous buildings &c.]. The inclination of the track b is effected and varied by removing from the lower end of the strut n sections of various lengths.
Patent GB-1065663-A (GB)
Title: Improvements in or relating to key-operated locks
IPC: E05B27/10
Filed: 1964-05-01
Abstract: 1,065,663. Key-operated locks. E. OPDERBECK. May 1, 1964 [May 2, 1963; Feb. 1, 1964], No. 18247/64. Heading E2A. [Also in Division F1] A key operated lock, Fig. 1, comprises a lock mechanism 1, and a key carrier slidable between a first position in which a key may be placed in the carrier, and a second position in which a key carried in the carrier is inserted in correct relation in the lock mechanism, the carrier in its second position being rotatable to cause such carried key to actuate the lock mechanism. In one embodiment, Figs. 1 and 2, the carrier is a cylinder with a relatively separable portions 5, 7, and is slidable in a cylindrical guide 2 on the front of the lock mechanism 1. In the first position, Fig. 2, the portion 7 is spring urged to a position in which it prevents sliding of the carrier and allows insertion of the key 11, 12 into the carrier. After the key has been inserted the portion 7 is pressed against the action of the springs so that projections 14 thereon enter cut-out portions in the head 12 of the key thus allowing the carrier to slide to its second position, Fig. 1, in which the key bit 11 is entered into the lock mechanism 1. Correct relationship of the key bit and the lock mechanism is assured by an idicator 10. In a second embodiment, Fig. 4, the carrier is of greater length to give greater security for the lock 1. The key is inserted laterally and then axially into the carrier and is gripped by pegs 14 on the spring loaded portion 7 engaging in holes in its head 12. The key is guided into correct relationship with the lock mechanism by a rib 22 engaging in a slot in the side of the carrier. The key is rotated after insertion in the lock mechanism by rotating a knob 20. In a modification of this embodiment the carrier has a tubular extension to receive a bunch of keys secured to the key in use. The lock is described as applied to a safe in which its bolt serves to hold a safe body in a hole in a wall, or as applied to a motor vehicle wherein its bolt when in the locking position enters a recess in the steering column, and in which the lock mechanism also makes or breaks an electrical circuit.
Patent GB-121330-A (GB)
Title: Sewing Machine.
Inventor: FAIRWEATHER WALLACE
IPC: D05B73/06
Filed: 1917-12-10
Abstract: 121,330. Fairweather, W., (Singer Manufacturing Co.). Dec. 10, 1917. Multiple-needle-machines; frames; work-supports; lock-stitching by hooks. - Relates to sewing-machines for stitching lengthways of hollow or tubular bodies and is designed to provide greater freedom in handling the work. The frame shown in dotted lines, Fig. 2, comprises a vertical standard 1 and a work-carrying arm 4 offset from, and at right-angles to, the standard and connected thereto by an arched intermediate member 3 which merges into the top of the work-arm and carries the main actuating-shaft 34. The work-arm consists of a rigid portion and two laterally swinging members 5, 6, pivoted on a pin 9 and housed in lateral recesses in the rigid member. The looptaker shafts 20, Fig. 6, are mounted on transverse pins 29 at the forward ends of the members 5, 6 and are driven through suitable gearing from shafts 23 journaled longitudinally in these members. The shafts 23 are driven from a countershaft. 31 through belts 27 and pin-wheels 26, 29. The thread cases 49 are held stationary by plates 53 pivoted to the swinging members and retained in operative position by spring latches 57. The swinging members are held in adjusted position by spring latches 63, Fig. 4, engaging latch plates 59 adjustably secured to a post 11 rising from the extreme end of the work-arm and formed from the material of the arm bv the recess provided for the accommodation of the loop-takers. The throat-plate 12 is secured to the post 11 and the main part of the work-arm. Needles, driving; feed by dogs.-The needleactuating lever 40 is pivoted on a pin 38 supported between the sides of the frame at the supported end of the work-arm, and is driven by a pin-andsocket connexion with an eccentric strap 46 embracing an eccentric on the main shaft. The feed-bar mechanism is housed in a channel in the fixed part of the work-arm and comprises a rocking member pivoted at 72 and deriving rising and falling movements from the needle lever through a link. The rocking member comprises also a tubular guide 69 for the feed-dog shank, which is reciprocated by a flexible rod 78 pivotally connected to a depending arm of a rocking member 85 journaled on the main shaft and provided with a crank-arm 88, which is connected by a link 90 to a rod 92 pivoted at 95 and sliding in a socket 96 of an eccentric strap embracing an adjustable eccentric on the main shaft. Presser-bars.-The presser-bar 108 is carried by an arm 105 secured to a rock-shaft 102 mounted in the intermediate frame member 3. The presserbar is depressed by a coiled spring 111 and is raised by a treadle lever acting on an arm 114 on the shaft 102.
Patent GB-176725-A (GB)
Title: An improved golfer's rain coat
IPC: A41D3/08
Filed: 1921-07-06
Abstract: 176,725. Sommerlad, H. July 6, 1921. Coats; waistcoats.-A golfer's rain-coat allowing freedom of the arms during play comprises a sleeveless waistcoat A, Fig. 1, to which is attached at the back a complete cape C. A spring device D, Figs. 1 and 3, is attached to the underside of the cape to retain the cape in position when thrown back over the shoulders. Hinged wings E sewn to the cape are under the action of springs F. A band G attached to the waistcoat and passing through the wings E prevents the cape from being blown upwards.