baber/WOPTO huggingface dataset:
Patent GB-878074-A (GB)
Title: Rotary intermittent motion power transmission device
IPC: F16D67/06
Filed: 1958-05-15
Abstract: 878,074. Cooling eddy-current brakes and couplings. TWYMAN, L. R. May 15, 1958 [May 17, 1957], No. 15628/58. Class 35. [Also in Groups XXIV and XXXIV] A power transmitting device comprises a casing having inlet and outlet openings, a clutch and/or brake mechanism and a fan in the casing, and baffle &c. means on the casing to direct the generally spiralling flow of cooling air produced radially inwards of the casing, further means carried by the clutch &c. mechanism forcing air at the centre of the casing radially outwards. As shown, a driving-shaft 26 carries a friction clutch disc 42 engaged with an armature 70 upon a driven shaft 34 when a stationary electromagnet 64 is energized, the driving-shaft carrying a fan 86 which draws cooling air in through holes 22 at the end of a casing 12 and imparts a generally spiralling motion thereto. Two radially inwardly directed baffles 98, having axially directed flanges 100, Fig. 1, and radially directed flanges 104, Fig. 2, direct the cooling air inwardly to pass through ports 108 into radial grooves 90 in the armature 42. Some of the air passes through ports 110 and radial grooves 96 in a brake disc 74. The air leaves the casing through holes 24. The brake comprises an electromagnet 82 which, when energized, attracts the disc 74, fast upon the driven shaft 34. Alternatively, the friction clutch 42 and friction brake 72 may be replaced by eddy current clutches and brakes or may be actuated hydraulically, pneumatically, mechanically or centrifugally. The clutch-brake combination may transmit power from an electric motor to a press, machine-tool, materials handling machine or the like.
Patent GB-347908-A (GB)
Title: Improvements in fluid flow meters
IPC: G01F1/37
Filed: 1930-05-21
Abstract: 347,908. Fluid pressure gauges. ELECTROFLO METERS CO., Ltd., Abbey Road, Park Royal, London.-(Spitzglass, J. M. ; 2240, Diversey Parkway, Chicago, U.S.A.) May 21, 1930, No. 15645. [Class 106 (ii).] In a hydrostatic differential pressure gauge used in connection with a venturi tube or the like to measure fluid flow the errors due to no allowance being made during calibration for the effect on the meters readings of compressibility of the fluid in its passage through the venturi tube are automatically compensated. The differential pressure caused by the fluid flow through the venturi tube 10 is measured by the U tube gauge 16 containing mercury. The variation of the resistance 18 through the contacts made or broken by the mercury as it rises or falls is indicated, recorded, and integrated on instruments 20, 21,22 respectively. The error due to compressibility is compensated for by the iron-cored reactance 23 which is constructed to work over the portion of the hysteresis curve of the iron which gives a variation most like the correction desired. In an alternative method this reactance is replaced by a suitably shaped displacer inserted in one of the branches of the U-tube.
Patent GB-130212-A (GB)
Title: Improvements in and relating to Hermetic Seals for the Leading-in Wires of Electric Lamps and like Apparatus.
IPC: C03C27/04
Filed: 1918-09-26
Abstract: 130,212. British Thomson - Houston Co., (General Electric Co.). Sept. 26, 1918. Drawings to Specification. Coating-machines.-A wire is coated with paste by holding it against a sharp-edged rotating wheel, partially immersed in the paste.
Patent GB-508564-A (GB)
Title: Improvements relating to lawn mowers
IPC: A01D34/42
Filed: 1937-12-30
Abstract: 508,564. Lawn-mowers. BARNETT, C., and BARNETT, W. Dec. 30, 1937. No. 15729/39. Divided out of.522,146. [Class 6 (ii)] A motor mower is driven from a roller 3 situated in front of the rotary cutter which is also driven from the engine by a belt 34. The drive for the roller 3 is taken from the cutter shaft 6 by a belt or chain which rotates a pinion 58 engaging teeth on the interior of the roller 3. Behind the rotary cutter is a second roller 4, the axle of which is carried by arms 46 pivoted at 47. Each of the arms is connected to a rod 48 passing through an aperture in a, fixed bracket 49 and provided with a screw knob 50. Rotation of the knob 50 adjusts the height of the roller 4. The invention is shown applied to the mower described in Specifications 508,563 and 522,146.
Patent GB-1459877-A (GB)
Title: Axle assembly
IPC: B60G21/067
Filed: 1974-04-09
Abstract: 1459877 Tandem axle suspensions; equalizing axle loads OTTO SAUER ASCHENFABRIK 9 April 1974 [9 April 1973] 15734/74 Heading B7D In a tandem axle trailer or semi-trailer suspension comprising at each end of each axle 20, 22 a laminated spring 16<SP>1</SP>, 16<SP>11</SP>, the rear ends of the springs are connected to the frame of the vehicle by hydraulic cylinder circuits 30<SP>1</SP>, 32<SP>1</SP> and 3011, 3211 which communicate through a balancing pipe 36 so that the axle loads are equalized, and the interior of each cylinder unit is divided into two chambers by a piston 38 including a throttling duct 44 so that there is damping of the balancing action. Each cylinder unit 30<SP>1</SP>, 32<SP>1</SP> and 30<SP>11</SP>, 3211 is so dimensioned that it may be substituted for a spring shackle.
Patent GB-1316033-A (GB)
Title: Manufacture of printed circuits
IPC: H05K3/38
Filed: 1971-05-19
Abstract: 1316033 Printed circuits ESSEX INTERNATIONAL Inc 19 May 1971 [28 May 1970] 15787/71 Heading H1R A method of making a printed circuit from a sheet of conductive material 1, such as copper foil supported on a sheet of non-conductive material 2 on which is coated a layer of thermoplastic adhesive 3 which is dry and non-tacky before heated to a predetermined temperature comprises, firstly, bonding required areas in a heated bonding die 6 and secondly, cutting the desired pattern in the conductive sheet with a cutting die which is adapted to fall under gravity to cut through the conducting sheet but not the non-conductive material. The bonding die is provided with punches 9 which make holes in the sheets 1 and 2 for alignment with posts in the cutting die. The cutting die is provided with a land portion from which the distance of the cutting edge is less than the combined thickness of the sheets 1 and 2 and preferably, less than the thickness of the layer 2. The weight of the cutting die and the height of its fall can be adjusted such that the impact velocity of the die is not sufficient to cut through the sheet 2. Following the cutting, the unbonded portion of the sheet 1 may be removed and the exposed portions of sheet 2 and remaining portions of sheet 1 covered with suitable dielectric material.
Patent GB-1034404-A (GB)
Title: Production of monomeric formaldehyde
IPC: B01J19/20
Filed: 1964-04-16
Abstract: Monomeric formaldehyde is prepared by conveying a mixture of pulverulent paraformaldehyde and from 1 to 10% by weight, based on the paraformaldehyde, of an inert organic substance, which has a boiling point of 250 DEG  to 300 DEG  C. and is liquid at 100 DEG  to 160 DEG  C., by means of a screw conveyer through a heating zone of 100 DEG  to 160 DEG  C. and discharging, at the end of said zone, gaseous monomeric formaldehyde and 2 to 20% by weight, based upon the supplied paraformaldehyde, of unreacted polymeric formaldehyde. Specified inert organic substances, which are preferably non-solvents for paraformaldehyde, are paraffins, waxes, fats, stearins, fatty acids and fatty alcohols.  The pyrolysis may be effected at atmospheric or under reduced pressure and, preferably, the formaldehyde partial pressure is maintained below 300 mm. Hg.
Patent GB-724135-A (GB)
Title: Improvements in or relating to lifting trolleys for crates or the like
Inventor: HINTON JAMES CRADDOCK
IPC: B62B3/04
Filed: 1953-06-24
Abstract: 724,135. Lift trucks. HUSTLER & SON, Ltd., J. June 24, 1953 [June 24, 1952], No. 15873/52. Class 78 (3). A truck for handling self-stacking crates of the kind having projecting rims 2, comprises a frame provided with a pair of rim engaging tines 1, supported at the rear by castor wheels 9 and at the front by wheels 13 which are mounted on a " U "-shaped lever 10 pivoted to the tines at 11 and adapted to raise and lower the tines when pivoted by means of a handle 14. As shown, the tines are raised when the handle is lifted, but in a modification a reverse arrangement is obtained, by providing the lever 10 with cranked portions adjacent the pivots 11. In a further modification means are provided for locking the tines in the elevated position, in this arrangement the wheels 13 are carried by separate levers pivoted to the tines and the lever 10 is connected by a link to a toggle linkage extending between the wheel-carrying levers and the downward frame extensions 8.
Patent GB-971959-A (GB)
Title: Improvements in or relating to soot blower assemblies
IPC: F28G3/16
Filed: 1963-04-23
Abstract: 971,959. Soot blowers. DIAMOND POWER SPECIALTY CORPORATION. April 23, 1963 [May 7, 1962], No. 15918/63. Heading F2N. A soot-blower comprises an arcuate rail 18 extending from a position near the outside of a heat-exchanger 12 to a position laterally outward therefrom, a carriage 26 movable along the rail 18 and supporting one end of a lancetube 24 of which the other end is disposed in a port 30 in the wall 10 of the heat-exchanger 12, power means for moving the carriage 26 and rotating the lance-tube 24 and means 32 to supply pressurized cleaning fluid to the latter. The carriage is supported on rollers :48 on the rail 18 and the lance 24 is pivoted thereon. Pressurized fluid is supplied from a header 34 through a pivoted telescopic arm 38, 40 and a valve 36 to the carriage-end of the lance. The motive power is supplied by a reversible-motor in the upper part of the carriage which may be pneumatic or hydraulic (supplied through a flexible conduit 90 as in Fig. 2), or electric. The motor drives a worm-gear of which the pinion (Fig. 3, not shown) engages a rack 60 on the underside of the rail and simultaneously turns a bevel-gear which rotates the lance about its own axis. A cam 108 contacts a pin on the rail (Fig. 3, not shown) and operates the poppet valve 36 through a link rod 106 to turn the cleaning fluid supply on and off from the lance tube at two appropriate positions during the advance and retraction of the lance inside the heat-exchanger which is indicated by the cross-hatched area of Fig. 1. Fig. 1 also shows the sequence of positions which are taken up by the lance 24 and the attached telescopic arm 35, 40. The front of the lance is supported on rollers 107 in a bracket 27 pivoted at 101 on the rail. The pivot 101 lies on an axis of a ball mounting 28 through which the lance passes into the heat-exchanger. The ball 28 is mounted in a hollow wall 116 of the port 30 in which the end of the lance is housed for protection when not in use. Air under pressure supplied at 128 to the hollow wall 116 serves to ensure a seal between it and the ball against ingress of the furnace gases. Switches LS1 and LS2 at either end of the rail limit the travel of .the carriage and reverse the direction of the motor as appropriate.
Patent GB-720623-A (GB)
Title: Improvements in or relating to the removal of dust from sheets of rubbery material and in or relating to machines adapted for such purpose
IPC: B24C9/00
Filed: 1952-06-27
Abstract: 720,623. Removal of dust generated in industrial processes. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). June 26, 1953. [June 27, 1952] No. 16164/52. Addition to 674,150. Class 8 (2). In removing dust from a sheet 14 of rubbery material as distinct from a hide as claimed in claim 4 of the parent Specification by removing it in outspread condition on a travelling conveyer 10 past a compressed air nozzle 22 extending across the sheet 14 and having a mouth area of less than one square inch per foot of nozzle and past a suction nozzle 25 for removal of dust-laden air, the sheet 14 is engaged by a rubbery device e.g., a plurality of ribs 26, 28, 30, 32, 34, 36 adjacent the nozzle 22 serving to aggregate dust on the sheet and so facilitating its removal. The ribs project from apertured rubber strips 40, 44 on each side of the nozzle 22 ; the outer ribs 26, 36 being chamfered to facilitate of the sheet 14 and the inner ribs 28, 30, 32, 34 having lengthwise extending ridges on their work-engaging faces.
Patent GB-258661-A (GB)
Title: Improvements in or relating to the manufacture of lime
IPC: C01F11/02
Filed: 1925-06-24
Abstract: 258,661. Stephenson, A., and Allen- Liversidge, Ltd. June 24, 1925. Calcium oxide and hydrate. - A very active calcium oxide or hydrate is obtained from the calcareous residue produced in generating acetylene from calcium carbide with excess of water, by removal of the water in two stages. First the excess of water is separated and then the uncombined water is completely removed, for example by heating. By raising the temperature of the second stage calcium oxide instead of the hydrate is obtained. The lime thus produced is stated to have a greater porosity, to give a greater hardening effect in making sand-lime bricks and absorb water and carbon dioxide more rapidly than ordinary lime.
Patent GB-815337-A (GB)
Title: Equipment cabinet
Inventor: COLLINS BERNARD
IPC: A47B47/03
Filed: 1956-05-25
Abstract: 815,337. Cabinets. COLLINS Ltd., B. May 24, 1957 [May 25, 1956], No. 16325/56. Class 52(1) A cabinet or case for electrical equipment such as railway signalling equipment has a top 1, front 4 with doors 5 and back 9 detachable from each other and from a frame 7 which carries the equipment. Lugs 2 on the top engage holes 3 in front 4 which is bolted to the back portion 9 and to the base 6 of frame 7. Reference has been directed by the Comptroller to Specification 795,873.
Patent GB-790244-A (GB)
Title: Improvements in and relating to control knobs
Inventor: BIRKBECK GUY
IPC: G05G1/12
Filed: 1955-06-07
Abstract: 790,244. Securing parts to shafts. MULLARD RADIO VALVE CO., Ltd. May 25, 1956 [June 7, 1955], No. 16341/55. Class 80 (2). A control knob 1 has an aperture 10 to accommodate a spindle, and a coaxial recess 2, a wedge-shaped member 4 is disposed in a tapered slot 7 having its wider portion adjacent the recess 2 and means 3 are provided for clamping the knob to the spindle by axial movement of the wedge members 4. The wedge members may be of narrow V-section of resilient metal, and may be urged axially by a plate 3 and screws 6. The recess may have a cross-section in the form of arcs of circles and accommodate an insulating cap. In an unillustrated embodiment, the wedge members may be accommodated in the cap which is threaded to the recess, and may engage against a tapered bottom of the recess.
Patent GB-150476-A (GB)
Title: Improvements in or relating to the method of and means for building concrete walls, beams, or the like
IPC: E04G17/12
Filed: 1919-07-02
Abstract: 150,476. Judd, F. J. July 2, 1919. No Patent granted (Sealing fee not paid). Moulding walls and beams in situ.-Clamps for use in connexion with the sheeting forming the moulds used in building concrete walls, beams &c. in situ comprise a cross-piece 2 carrying slidable adjustable jaw members 1, 3 of U-section sheet metal, to the upper ends of which are fixed triangular packing pieces 6 abutting against the cross-pieces 2. The jaw 1 carries a face plate 1<a> which is secured to one moulding-board, the other board having secured to it an adjustable face plate 4 carried by tommy bolts 7 screwed through packing-pieces 8, 9 mounted in the jaw member 3.
Patent GB-420834-A (GB)
Title: Improvements relating to measuring or indicating instruments
IPC: G01R11/10
Filed: 1933-06-09
Abstract: 420,834. Indicating - - instruments. LUCAS, Ltd., J., and BRATT, J. B., Great King Street, Birmingham. June 9, 1933, No. 16551. [Class 106 (iv)] A damping means for indicating-instruments comprises a pivoted part a having considerable moment of inertia in pin-andslot or equivalent connection with the index or other pivotal part, the part a being arranged to move in the opposite direction to the moving instrument part. As applied to a moving-iron ammeter, the pivot e of the pointer d carries an armature f which is responsive to the magnetic field produced in the coil g. On the pointer spindle is an arm d<1> having a pin c which engages a slot in an extension b of a pivoted mass of sheet metal a shaped in the form of a pair of sectors projecting on opposite sides of the pivot. A flexible metal part h attached to the mass serves by bending to correct any slight lack of balance in the mass. The mass and needle moving in opposite directions minimizes the effect on the needle of vibrations of the instrument as a whole. A pair of pegs engaging opposite sides of a radial stem may be used instead of a pin-andslot connection.
Patent GB-624271-A (GB)
Title: Improvements relating to the manufacture of bricks or blocks from plastic material
IPC: B28B15/00
Filed: 1947-06-24
Abstract: 624,271. Brick &c. moulding plant. INTERNATIONAL FURNACE EQUIPMENT CO., Ltd., and BAILLY, L. June 24, 1947, No. 16625. [Class 87 (ii)] [Also in Groups X, XIII and XXX] Extruded plastic material cut into bricks or blocks is fed by conveyers 2, 4 to trucks 9 on a turn-table 5 in one position thereof; in another position, the trucks pass by a lift 19 to a tunnel dryer 24 and are then returned to the turn-table ; in a further position, 'they are moved onto carriages 37 which carry them through a firing kiln 41 and after discharge return them to the turn-table. The material may be cut before reaching the conveyer 2 or during transfer to the conveyer 4. The blocks may be removed from the conveyer 4 and stacked on a truck 9 by a pneumatic gripper device or they may be stacked in a casing 43 on an intermediate platform and transferred to the truck by a device comprising plungers 45 carried in tubes 44 and movable outwardly by pressure fluid in flexible tubular members 46. The turn-table 5 is provided with a hydraulic pushpull device whereby a truck 9 is pushed into a double-decker lift 19 and raised thereby to a tunnel dryer 24 into which the truck is pulled by a catch 29 pivoted on a rack 26 reciprocable by a pinion 27. The truck is returned to the turntable by a hydraulic lift 31, an upper track 33 having associated therewith a pusher trolley 35, the lift 19 and the turntable push-pull device. The truck is then brought into position for transfer to a kiln carriage 37 which passes by tracks 38, 40 to the kiln 41 and after unloading returns to the turn-table.
Patent GB-258529-A (GB)
Title: Improvements in and relating to laminated springs
IPC: F16F1/26
Filed: 1926-02-05
Abstract: 258,529. Stott, J. H. Feb. 5, 1926. Addition to 258,407. Laminated springs. - A clip adapted to apply pressure over a considerable length of the plates so as to avoid tilting or rocking of the clip when bending of the spring occurs and the plates slide over one another, con. sists of a single clamping plate or member 20 and securing members such as bolts 22 passing through tubular parts of the clips and through lugs formed on the leaf 10 on the opposite side of the spring.
Patent GB-841865-A (GB)
Title: Improvements in hot water bottles
Inventor: MUELLBAUER NORBERT JOHANN
IPC: A61F7/08
Filed: 1955-06-09
Abstract: 841,865. Ornamenting. RELIANCE RUBBER CO. Ltd. June 4, 1956 [June 9, 1955], No. 16663/55. Class 93. A hot water bottle made from electrically insulating material such as rubber or polythene is covered with a pile or nap of textile fibres by rendering the material electrically conductive by moisture and coating the surface of the bottle with an adhesive, surrounding it with a cloud of flock and causing the fibres to contact the adhesive at one end by the creation of an electrostatic high tension field between the bottle and an external conductor. The adhesive used may be, for rubber bottles, a solution of a polyurethane, or of an unvulcanised rubber and a polyisocyanate, and for synthetic resinous bottles, a solution of the same resin. The bottle may be soaked in tap water to render it conductive and the electrostatic field set up between the bottle and a wire grid.
Patent GB-216369-A (GB)
Title: Improvements in letter files
IPC: B42F13/12
Filed: 1923-06-27
Abstract: 216,369. Crocker, S. H. June 27, 1923. Post files; locks and fastenings.-In a file for letters &c. comprising a base piece e having an upturned back piece f, and a hinged angular cover piece a for closing the ends of the posts h, the cover piece a is hinged to the base at the rear of the back piece, and is locked in position by a movable member which engages with the back piece and cover piece. The posts h, which are pressed out of the base piece e, are of curved shape, and have rounded heads which engage in recesses k in the cover piece. The locking-member comprises a spring member p supported at one end in a slotted lug q and provided with a loop l which extends through a lug m in the cover piece and engages with a notched plate n pressed up from the back piece.
Patent GB-1489012-A (GB)
Title: Process for manufacturing ceramic products
IPC: C04B33/32
Filed: 1975-04-23
Abstract: 1489012 Firing ceramic products CERAMICA FILIPPO MARAZZI SpA 23 April 1975 [29 April 1974] 16878/75 Heading ClJ Ceramic products such as floor or wall tiles are made by shaping a material containing at least 40% by weight of raw clay and less than 50% of talcum and wollastonite taken together, drying, covering one face with a glazing and feeding the shapes through a chamber in which substantially the whole of the surface area of the shapes is exposed to direct transmission of heat by convection and in which the shapes undergo a first rapid heating to a temperature slightly below the maximum firing temperature and then a firing during which the shapes reach the maximum firing temperature. Ceramic tiles, 4-10 mm. thick, which have been dried and glazed are fed on rollers having fixed axes at a speed of 1À5-2 metres per minute through a tunnel furnace or kiln having a first section in which the glaze is dried, a rapid heating section, a firing section and a cooling section; the furnace is heated by gas burners or electric heaters and the tiles are heated by a counterflow of hot gas. The glaze can be dried for 5-7 minutes at up to 200‹ C., the rapid heating can be 800-1200‹ C. in a 4-8 minute period, the firing step can last for 10-20 minutes and the cooling can be carried out over an 8-10 minute period.
Patent GB-145273-A (GB)
Title: Improvements relating to pressure fuel feed systems for internal combustion engines
IPC: F02B1/00
Filed: 1919-07-07
Abstract: 145,273. Thomas, R. G. July 7, 1919. Liquid fuel, supplying.-The pump i. which returns accumulated lubricating-oil from the engine crank-case j to the lubricating-oil tank a, is used to supply compressed air to the fueltauk f to feed the fuel through a pipe l to the carburettor or vaporizer. This is effected by making the tanks a, f airtight and connecting together the upper portions thereof by a pipe c, preferably provided with a non-return valve k, so that the air sucked in from the crank-case j by the pump i, when not drawing oil, accumulates in the upper portions of the tanks. A safetyvalve d is provided, and a hand-pump m for starting is connected to either the fuel or the oil-tank. The oil-tank may consist of an airtight chamber formed with the engine case, and a single tank divided by a partition may be used for the oil and fuel, an air passage being formed in the upper portion of the partition.