baber/WOPTO huggingface dataset:
Patent GB-1474079-A (GB)
Title: Movable structures
IPC: E02F3/32
Filed: 1974-07-03
Abstract: 1474079 Shovelling machines POCLAIN 3 July 1974 [19 July 1973] 29410/74 Heading E1F The jib 2 of a lifting machine, which may be an hydraulic shovel, is pivoted at 3 and cuffed by a main jack 4 whose line of action never passes through the axis 3 throughout the range of operation. A secondary jack 10 assists the main jack 4 at all inclinations of the jib 2 its direction of action being reversed as its line of action passes through the axis 3 by a reversing device 22 operated by a bistable cam 23 tripped by a lug 27 rigid on the end of the jack 10. The secondary jack 10 thus provides a torque characterised by curve 31, which, added to torque 7 provided by the main jack 4, gives a resultant torque 32 enabling the machine to operate to its maximum potential throughout its range: curve 8 representing the maximum allowable tilting torque. When the line of action of the secondary jack 10 passes through the axis 3 its torque is zero, at this point, represented by the buffing angle A o , the torque of the main jack 4 is a maximum, the vertex angle at 6 of the triangle 3, 5a, 6 then being a right angle.
Patent GB-797180-A (GB)
Title: A method of making heat exchangers and other tubed articles
Inventor: HALL JAMES ALBERT
IPC: B21D53/04
Filed: 1956-09-26
Abstract: 797,180. Making heat-exchangers; stamping. REYNOLDS METALS CO. Sept. 26, 1956, No. 29434/56. Classes 83 (2) and 83 (4). [Also in Group XIII] A method of making heat-exchangers, e.g. evaporators for refrigerators, consists in bonding at least two metallic, e.g. aluminium alloy, sheets with areas thereof to be expanded into fluid-flow conduits covered with a resist at the meeting faces of the sheets, placing the bonded structure between rigid platens with a yielding blanket superimposed upon at least one face of the structure at which tubular expansion is desired and introducing a fluid under pressure into the unbonded areas to expand them under counter pressure of the yielding blanket and releasing said pressure. The aluminium alloy sheet to be expanded has a lower yield point than the other and the roll bonding, effects a reduction exceeding 55 per cent. The resist may be molybdenum disulphide and colloidal graphite and is applied by silk-screen printing or spraying. After roll bonding, the composite structure is annealed and then placed on a platen 3 with the weaker sheet uppermost. A resilient blanket 4, e.g. of rubber, is superimposed on the structure and an upper platen 5 brought down to press the blanket against the upper face of the structure. Hydraulic fluid at 800 to 1000 p.s.i. is introduced into the structure at 6 to initially expand the pattern areas approximately one-half of the desired total expansion. When the blanket is exerting a counter pressure upon all surfaces under expansion, the expansion pressure is increased to 2500 to 3000 p.s.i. When pattern areas are to be expanded on both sides of the structure a blanket is provided for both faces of the structure. Finally, the expanded structure is bent along the dotted lines (Fig. 1) to form a box-like evaporator.
Patent GB-222708-A (GB)
Title: Improvements relating to centrifugal friction clutches
IPC: F16D43/18
Filed: 1923-11-22
Abstract: 222,708. Lydall, W. M. Nov. 22, 1923. Clutches, friction.-The radial engaging-movement of centrifugal clutch shoes imparts rotation to and is delayed by, one or more braked wheels, the resistance of which can be adjusted by screws, nuts, or other pressure devices. Each shoe B, Figs. 1 and 2, guided by a rib a<1> on the flanged driving-member A, carries spring-blade pawls D co-operating with a pair of oppositehanded ratchet wheels C mounted on a screwed stem c concentric with the driving-shaft. A cork or other friction washer c<2> is interposed between the wheels, which are adjustably pressed together between discs c<1> by a nut c<3> provided with a lock-nut c<4>, whereby the speed at which the shoes B engage the driven pulley E can be varied. In a modification, a pair of ratchet wheels is provided for each shoe and disposed symmetrically around the shaft, the stems c engaging a slot in the shoe to guide it radially. Pivoted pawls drawn together by a tension spring may be used. In another form, Fig. 7, the wheels C are carried by the shoes B and engage pawls D pivoted on the driving-member, adjacent pairs being pressed apart by torsion springs d<2>. A single ratchet and pawl device may be used for each shoe, rotation of the adjusting-nut being prevented by an interposed washer having a flat co-operating with a surface on the shoe. The clutches may be used for coupling aligned shafts, and may be enclosed by a detachable cover F through which the adjusting-nuts may project. The motion of the shoes in large clutches may be conveyed to central ratchet wheels through pawls on bell-crank levers engaging lugs on the shoes; wing nuts may be used for the pressure adjustment.
Patent GB-993630-A (GB)
Title: Alkylbenzene sulphonates
IPC: C07C309/31
Filed: 1961-08-15
Abstract: Biologically readily decomposable monoalkyl benzene sulphonates are prepared by reacting a monoalkyl benzene alone with an excess of sulphuric acid of 96% to 105% concentration at a temperature from 60 DEG  to 95 DEG  C. and subsequently neutralizing the monoalkyl benzene sulphonic acid produced, the excess of sulphuric acid employed being not greater than 150%. The sulphonation is preferably initiated at 60 DEG  to 75 DEG  C. and completed at 80 DEG  to 85 DEG C. Examples are given of the sulphonation of tetrapropylene benzene, and a dodecyl benzene produced by the reaction of benzene with a straight-chained dodecyl chloride in the presence of aluminium chloride, by conventional procedures and by the process of the invention.
Patent GB-503105-A (GB)
Title: Improvements relating to valve-gear
IPC: F01L1/20
Filed: 1937-10-28
Abstract: 503,105. - Regulating. McGREGOR, R. Oct. 28, 1937, No. 29496. [Class 7 (vi)] The adjusting-screw E for regulating the clearance in valve gear is provided with an automatically-locking vernier adjustment com. prising a serrated disc F on the screw engaging a locking-detent L which is constituted by an extension of a spring,H provided on the screw so as to exert an upward pressure thereon and produce a frictional resistance to rotation. If the screw is adjusted by means of a screwdriver, a headed sleeve is placed over the detent L so as to move it partially out of the serrations F ; or instead of a screwdriver a thimble-shaped key may be used which engages the cross-cut E<1> in the screw and also presses the detent to its unlocking position. In a modification in which the screw is provided at the head of a valve tappet, the head of the screw is hexagonal and is rotated by means of a spanner formed so as to press the detent to its unlocking position.
Patent GB-207541-A (GB)
Title: Improvements in reciprocating pumps
IPC: F04B1/04
Filed: 1923-11-22
Abstract: 207,541. Geraki, J. Nov. 25, 1922, [Convention date]. Crank-actuated pumps ; stroke, varying; air vessels; multiple-acting piston pumps; valves, arrangement of.-A pump for lubricant &c. comprises two pistons 5, 6 reciprocated in cylinders 3, 4 by an eccentric roller 11 adjustably mounted in a slot 9 in the end of a rotary valve 7 and engaging a slot 13 in a frame 14 carrying the pistons. The stroke of the pistons is varied by adjusting the eccentricity of the roller. The suction rod and delivery ports 17, 18 are controlled by the rotary valve 7 provided in the plane of the ports with peripheral grooves 19, 20 opening into longitudinal ducts 23, 24 communicating respectively with annular grooves 27, 26. The grooves 26, 27 register with passages 31, 32 communicating with the pump cylinders. An air chamber 35 is connected to the delivery 18 by a passage 36.
Patent GB-1380662-A (GB)
Title: Electric capacitors
IPC: H01G4/12
Filed: 1973-06-21
Abstract: 1380662 Capacitors SPRAGUE ELECTRIC CO 21 June 1973 [21 June 1972] 29557/73 Heading H1M A capacitor comprises an assembly of electrode layers separated by dielectric layers, alternate electrodes having portions 32, 33 extending to the edge of the assembly at a pair of opposite corners for terminal contacting by metal layers 34, 35. The symmetry of the assembly obviates the need to align it when the contact layers are to be applied by an automatic process. The capacitors may be monolithic ceramic capacitors having silver contact layers.
Patent GB-735464-A (GB)
Title: An axially free universal torque-transmitting coupling
Inventor: WHITEHEAD LESLIE THOMAS
IPC: F16D3/24
Filed: 1952-11-24
Abstract: 735,464. Universal joints. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 22, 1954 [Nov. 24, 1962], No. 29622/52. Class 80 (2). A universal joint comprises interengaging projections &c. 4, 8 integral with or secured to driving and driven coupling members and pads 10 between the projections &c. which can turn in sockets 9 in the projections &c. and have abutting flat faces which can slide on one another. As shown, the sockets 9 and pads 10 are of part-spherical shape, and pairs of pads 10 are interposed between alternate pairs of projections 4, 8 so that the joint can only transmit rotary motion from the driving to the driven shaft in one direction. In a modification, Fig. 3 (not shown), pairs of pads 10 are placed between every pair of projections 4, 8 to allow rotation in both directions. The joint permits relative axial motion between the driving and driven shafts. The pads 10 have cylindrical or spherical flanges 11, grooves in which may be engaged by sheet-metal clips (Fig. 4, not shown) to hold the pads in their seatings. In a modification, the projections terminate in spherical heads 16, Fig. 5, between which are pads 17 having concave bearing surfaces 18. The pads may be lubricated by graphite, or the whole surface of each pad may have a burnished coating of a lubricating metallic compound such as molybdenum disulphide or tungsten disulphide. As a further alternative, the pads may be of porous metal such as sintered bronze impregnated with, e.g., poly - tetra - fluoro - ethylene.
Patent GB-1065013-A (GB)
Title: Improvements relating to gas-cushion vehicles for operation over water
Inventor: HUNT ROWLAND DELVILLE
IPC: B60V1/00
Filed: 1964-07-24
Abstract: 1,065,013. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. July 16, 1965 [July 24, 1964], No. 29724/64. Heading B7K. An air-cushion vehicle has flexible skirts depending from its sides and means for distorting them to raise and lower at least a lower portion of the skirts on one or both sides, so that when travelling over water a symmetric drag results producing a turning moment. The skirts comprise upper portions (18a, Fig. 4, not shown), forming with the body (4) and a hinged plate (21) a closed space (22a) and lower portions (18b) of fluted construction. The closed spaces on opposite sides are connected by a compressor (25) and valve unit (30) by which a selected side may be inflated to lower its lower portions, and the opposite side be deflated, or the two sides allowed to communicate freely when no steering control is required. Alternatively, a compressor may be arranged to inflate and deflate a single side (Fig. 7, not shown), or an electric jack may be arranged to move a pivoted plate (35) to squeeze the closed space on one or each side (Fig. 6, not shown). The air cushion preferably has a central partition (15, Fig. 2 or 7, not shown), air being supplied on each side of the partition through ducts (9) containing valves (31) responsive to tilt. This provides the vehicle with roll stability.
Patent GB-464647-A (GB)
Title: Improvements relating to controlling mechanisms for the throttle valves of internal combustion engines
IPC: F02D9/00
Filed: 1935-10-29
Abstract: 464,647. Fluid - pressure servomotorcontrol systems. MORRIS INDUSTRIES, Ltd., and DAVEY, B. A. Oct. 29, 1935, No. 29802. [Class 135] Means for operating the throttle valve j of an internal combustion engine by a hand lever a or by a device n responsive to barometric, induction pipe or other fluid pressure, comprise an intermediate lever e pivoted intermediate its ends to the shorter arm of the hand lever and connected at one end by a link h to the throttle valve and at the other end by a link k to a part such as the piston rod l responsive to the movements of the pressure responsive device. The valve-opening effect of the hand lever is greater when the valve is near its full-open position than at its closed position. The arms g, f of the lever e are approximately equal and are inclined at an angle of about 120‹. The pressure responsive device n controls a piston m on the rod l by the means described in Specification 464,652. According to the Provisional Specification, the link k may be connected to the barometric device by a bell-crank lever and the hand lever may have a third arm to alter the setting of the barometric device after the valve has been partly or fully opened.
Patent GB-505019-A (GB)
Title: Improvements in or relating to apparatus for removing hollow articles or containers,produced by an immersion process, from cores
IPC: B29C33/46
Filed: 1937-11-01
Abstract: 505,019. Moulding by dipping. BRATRING, K., and INTERNATIONAL CONTAINERS, Ltd. Nov. I, 1937, No. 29875. Convention date, July 27. [Class 87 (ii)] In order to remove articles moulded by dipping from their moulds, a battery or series of moulds 1 mounted on or integral with a common flange 3b is adapted to make a joint with a box-like part 6 into which air is admitted under pressure and passes through apertures 2 in the moulds. In some cases, the moulds are arranged over an evacuated chamber 18 similar to a tank containing the dipping solution. The flange part 3b is adapted to be moved in channel guides 11, while the box-like part 6 is carried by springs 13 from a cross-head 15 provided with a lever-operated eccentric 9a and clips 12 for securing it to the guides. Rollers 10 movable on the upper parts of the guides 11 are provided for transporting the closure device to successive sets of moulds. Specification 449,301 is referred to.
Patent GB-1282217-A (GB)
Title: Improvements in and relating to strainer valves
Inventor: FULTON GARLAND LANGDON
IPC: B01D29/48
Filed: 1970-06-19
Abstract: 1282217 Filter valves G L FULTON 19 June 1970 29919/70 Heading BID A filter valve comprises a casing 11, Fig. 1, housing a hollow, manually or automatically, longitudinally reciprocable edge filter 30 made of a helical band 33 supported on bars 32 and fitted at one end with a valve plug 45 and at the other with an optionally apertured disc 35. Filtering takes place via tangentially located inlet 20, filter 30 and outlet 19. During back washing the filter is lowered to open passageway 25, the backwashing being performed either (a) by contaminated fluid passing via inlet 20, apertures 37, filter 30 and exit 25, 26, (there being a back pressure in outlet 19 to prevent passage of liquid throughout) or, if no apertures 37 are present, (b) by passing clean liquid via 19, filter 30 and exit 25, 26. Fig. 5 shows the filtering position of one of a plurality of valves which can be used in parallel. Filtering takes place via inlet 50 filter 30 and outlet passageway 144, 56, 51. After lowering of the filter backwashing takes place either (a) by clean fluid passing via open valve 61 pipe 60 port 58 (now open) apertures 137, filter 30 and exit 125, 126 or (b) by clean liquid passing from pipe 62 with valve 61 closed and valve 63 open.
Patent GB-152968-A (GB)
Title: Improvements in or relating to sparking plugs
IPC: H01T13/46
Filed: 1920-10-22
Abstract: 152,968. Chollet, C., and Lepape, G. Oct. 22, 1919, [Convention date]. Sparking-plugs.-In screwing in the gland 7 to secure the insulator 6, torsional strain is avoided by interposing a washer 10 having projections A<1> engaging grooves in the casing. Centring of the electrode is effected by projections D on the inner edge of the washers 10, 11. The washer 11 mav be metalloplastic, and an additional washer 9 of brass May be used. The high-tension terminal may consist of a nickel cap 14.
Patent GB-403789-A (GB)
Title: An improved process for the development of photographic silver salt layers
IPC: G03C1/34
Filed: 1932-10-26
Abstract: 403,789. Photographic emulsions; developing. GOSSLER, H., 16, Corneliusstrasse, Mannheim, Germany. Oct. 26, 1932, No. 29952. Convention date, Oct. 27, 1931. [Class 98 (ii).] For preventing the formation of fog during the development of silver emulsions with the production of a blue-black tone, imidazoles such as nitrobenziminazole are added to the developer to the extent of 0.05 to 0.35 grams per litre or the emulsion is coated with one or more protective layers saturated in the cold with an imidazole. A suitable developer for the process consists of metol, sodium sulphite, hydroquinone, potassium carbonate, potassium bromide and nitrobenziminazole. The potassium bromide may be omitted. A protective layer for application to the emulsion comprises gelatin, saponin, alcohol, nitrobenziminazole in dilute sulphuric acid, and formalin. The Specification as open to inspection under Sect. 91 also describes the use of triazoles, tetrazoles and thiosemicarbazones. Examples are given of the use of thiosemicarbazide as an addition to the developer or to a protective layer and of a mixture of benztriazole or nitrobenziminazole with thiosemicarbazone as an addition to the developer. This subject-matter does not appear in the Specification as accepted.
Patent GB-305289-A (GB)
Title: An improved apparatus for transporting hay, corn and the like
IPC: A01D87/08
Filed: 1927-11-09
Abstract: 305,289. Garvie, T. B. Nov. 9, 1927. Hay bogies.- An apparatus for transporting: ricks of hay, corn, or the like comprises a frame mounted on wheels e, and having a central long beam a and shorter side beams c. The beams a, c are formed of channel iron and form forwardly projecting prongs. The prongs are drawn under the rick by attaching a chain or rope to the end of the beam a the chain being passed under the rick and hauled by a horse or tractor. After the rick has passed up the prongs the forward end of the bogie is raised by a winding drum i received on two frames j. An auxiliary wheel h is then fitted below the front end of the bogey. In a modification the winding drum is carried on a wheeled frame that is fitted under the front end of the bogey after raising.
Patent GB-504939-A (GB)
Title: Vulcanizing apparatus
IPC: B29C35/02
Filed: 1937-11-02
Abstract: 504,939. Vulcanizing long lengths. WALLACE, A. L. Nov. 2, 1937, No. 29989. Convention date, Nov. 17, 1936. [Class 70] In continuous vulcanizers for rubber hose, belting and the like, in which series of co - operating articulated moulds receive the article to be vulcanized between them, the moulds are driven by separate endless flexible or articulated bands. Means are also provided for the easy removal of clamps which hold the moulds series together during vulcanization, at the end of the process. Endless series of mould segments A, B, Fig. 2, are traversed in the direction of the arrows and enclose a hose, and surrounding overlapping flexible steel strips 81-84 and carry it through a heated chamber after which they separate and return. While in co-operation, the mould series are locked together on both sides by endless series of clamps G, Figs. 2, 10. The moulds are mounted on steel bands 5, 22, which are engaged frictionally by members 8, 24 on bands 9, 25 driven by sprockets from the shaft 43. The bands 9, 25 are supported on rollers 14, 26 on supports 16, 27-capable of adjustment by means of a rod 18 having right- and left-handed threads working in axles 17, 28 respectively. While under the pressure of the driving means, clamps G engage the moulds and lock them together during passage through the heated chamber. At the exit end of the chamber, rollers 52, 53, on adjustable supports 54, 55, Fig. 3, press the mould segments together to relieve the clamps G and enable them to be forced away by wedges 79, Fig. 10.
Patent GB-724162-A (GB)
Title: Apparatus for gauging profiles of workpieces
Inventor: DOWELL JOHN HENDRI
IPC: G01B11/24
Filed: 1953-11-26
Abstract: 724,162. Gauging departure from standard form. HILGER & WATTS, Ltd. Nov. 26. 1953 [Nov. 26, 1952], No. 29992/62. Class 106 (2). Apparatus for gauging profiles of a workpiece (e.g. a turbine blade) comprising a feeler, a work holder, a screen, a master profile which moves in dependence with the feeler as it explores the work, means for bring- ing the master profile into view on the screen, and an index fixed on the screen to show conformity or otherwise of the workpiece with the master profile. In principle, the apparatus consists of two work-contacting members 1, 2, Fig. 1, joined to a frame 4, 6 respectively, on to each of which is held a photographic plate of a master profile 5, 7. A fixed source of light (not shown) projects inverted images 5x, 7x, Fig. 3, of the master profiles onto a screen having a reference circle 9 inscribed on it. The apparatus is suitably adjusted initially so that as the feelers follow the workpiece the projected images of the master profiles move along the fixed circle 9, any deviation from the circle indicating a deviation of the workpiece from the master profile. In the actual apparatus a work holder carriage 17, Fig. 4, slides on a bar 14 pivoted at 15 to a base casting 11, the position of the carriage with respect to the base being determined by a stop 19. A second casting 12 supports the feelers and the optical system housing 13. The front frame 29, Fig. 6, which is joined to the workcontacting piece 34 by a connecting bar 32, supports its photographic plate 35 which has a bar 37 attached to it by four leaf springs 45, 47, 49, the position of the plate relative to the frame being adjusted by three screws 41, 43. By a similar method plate 36 is held on the frame 30. The frames are supported on a carriage 22, Fig. 4, mounted on the front end 21 of the optical housing 13 and rotation of a hand-wheel 28 moves a pivoted sector 24, Fig. 5, linked to the carriage by a bar 23 and causes the carriage to move in a vertical plane. Light from a lamp 68 in a housing 67 is projected through the photographic plates via a condenser 69 and lens 70, and reflected by a mirror 71 on to a screen 72. Specification 652,695 is referred to.