baber/WOPTO huggingface dataset:
Patent GB-838942-A (GB)
Title: Improvements in or relating to friction clutches
Inventor: BLAND ALBERT NORMAN
IPC: F16D43/12
Filed: 1957-06-07
Abstract: 838,942. Friction clutches. AUTOMOTIVE PRODUCTS CO. Ltd. June 5, 1958 [June 7, 1957], No. 18233/57. Class 80 (2). In a motor vehicle centrifugal clutch having a driven plate 12 gripped between a flywheel 10 and a presser plate 14 actuated by centrifugal masses 16 pivoted on a spring - supported reaction plate 15, wherein partial clutch pedal depression moves a release collar 23 to the left to lever the presser plate 14 for release of the driven plate 12 irrespective of centrifugal action, depression of the pedal beyond the release position moves the release collar 23 further to the left, which, through thrust means such as blocks 24 attached to the collar 23, and a washer 29, presses the driven plate 12 against the flywheel 10 for clutch engagement, independent of the presser plate 14, for engine starting by vehicle movement. In Fig. 2 (not shown), the driven plate comprises a thin flexible disc mounted on tangential compression springs and the thrust means comprises a dished plate carried by a ring which slides on the driven hub and is engaged by the release collar 23 through a thrust washer; the periphery of the dished plate engaging the driven plate disc adjacent the inner edges of the friction facings. The dished plate and the driven plate may be coupled for rotation together by means of axial pins.
Patent GB-184020-A (GB)
Title: Improvements connected with step ladders
IPC: E06C1/16
Filed: 1921-07-06
Abstract: 184,020. Jones, E. July 6, 1921. Ladders.-A step ladder of the type having a sliding hinge-attachment between its members, has a platform 4 pivoted to the top step at 6 and to struts 10 which are pivoted at their lower ends to a bracket 12 carried by the rear leg 13 of the steps. As the steps are collapsed, the bracket is also collapsed against the rear leg.
Patent GB-724870-A (GB)
Title: Improvements in record controlled machines
Filed: 1953-07-01
Abstract: 724,870. Statistical apparatus- MAUL, M. July 1, 1953 [July 1, 1952], No. 18291/53. Class 106(1). A removable plug-board in a record-card controlled statistical machine comprises stationary terminals leading to the analysing means and to the means to be operated by the analysing impulses and a removable plug-board cooperating in the insert position with the terminals; is characterized in that the plugboard and terminals are located in the base plate of the machine and that the plug-board comprises at least two layers of contact, bases, which in each layer are paralell to one anotner, the bars of one layer extending transversely of the bars of the next layer, the bars of each layer being electrically connected to one other layer at the required points in accordance with the wiring diagram, and is further characterized in that the stationary terminals co-operate with the plug-board on at least two sides of the plugboard at right angles to each other, one side leading to the analysing device and one side to the receiving means so that the two sets of contacts are brought into contact connection with the plug-board when the latter is in the insert position. Fig. 2 shows the general arrangement of the machine in which cards 10 are fed from a magazine 11 to a receiving hopper 13 past sets of sensing-brushes 14, 15. The base plate 25 is of hollow construction to accommodate the plug-board arrangement shown in detail in Figs. 5, 6 and 7. The removable plugboard comprises an upper set of contact bars 28 arranged in parallel rows, and a lower similar set 29 at right angles to and insulated from the first set by member 30. Contact with each set is made by spring contacts 32, 33 respectively, and interconnections are made as required by the wiring diagram by means of screws and bolts 31 as shown in Fig. 8. The door 26 of the base plate compartment 25 co-operates with a lifting device so that the plug-board is inserted freely and afterwards raised into contact position with spring contacts 32, 33 by the lifting device. The latter comprises two pairs of members 40 slotted to allow pins 43 to pass freely between them. Members 49 shaped as shown in Fig. 6 are supported between the pairs of members 40. The movement of closing the door 26 is arranged to slide the member 49 so that the inclined surfaces engage the pins 43 and raise the U-shaped members 46, on which the plug-board is supported, by members 47 so that the plug-board is brought into contact with the sets of contacts 32, 33. The contacts 32, 33 may be provided on both parallel sides of the plug-board as shown in Figs. 5 and 6 so that the two sets of contacts occupy all four sides of the plug-board, being supported on insulated supports 39a to 39d as shown.
Patent GB-1122972-A (GB)
Title: Brushless electric generator
IPC: H02K19/36
Filed: 1966-04-27
Abstract: 1,122,972. Alternators. WESTINGHOUSE ELECTRIC CORP. 27 April, 1966 [12 May, 1965], No. 18356/66. Heading H2A. In a brushless electric generator, having at least two bus-bar rings 64, 68, which are electrically insulated from each other and from the generator shaft 22 on which they are mounted, a plurality of heat sinks 112 each supporting at least one diode 46, 47 are insulatingly mounted on each bus-bar ring 64, 68 and circuit connections are provided between each diode and the associated bus-bar ring via a fuse 48, 49 and the bus-bar rings and heat sinks are connected to the excitation circuit of the generator. The generator field (54, Fig. 2, not shown), is supplied via the rotating rectifier circuit (31) fed from a rotating armature (32) of the main exciter which has a stationary field (30) controlled by a pilot exciter having a stationary armature (26) and rotating permanent magnet field (24). The armature of the main exciter is connected via leads 92 to the heat sinks 112 and the D.C. output from the rotating rectifier circuit is taken from the bus-bar rings 64, 68 via leads 164, 178 to terminals 102, 104 mounted in the shaft 22 which are connected via conductors 96, 98, to the field of the generator. The rotating rectifier circuit including diodes 46, 47, fuses 48, 49, resistors 53, 57 and capacitors 51, 55 are mounted within the bus-bar rings 64, 68. Each diode, which may be of the semi-conductor type, may be mounted on a single heat sink. Alternatively, the heat sinks may be made of greater arcuate length so as to support several diodes. In a further arrangement (not shown) one hub 60 supports additional bus-bar rings 64, 68 which are suitably insulated from each other and from the shaft. Reference has been directed by the Comptroller to Specification 864,639.
Patent GB-531087-A (GB)
Title: Improvements in or relating to cutter chains for mining machines
IPC: E21C27/04
Filed: 1939-06-26
Abstract: 531,087. Mining - machine cutter - chains. LEWIS, O. F., and NEWTON, CHAMBERS & CO., Ltd. June 26, 1939, No. 18539. [Class 68 (i)] [Also in Group XXV] A mining-machine cutter-chain, particularly a side-cutting chain for cutting around a block of coal &c. comprises a pick-box 1 integral with a saddle portion 2 consisting of spaced wings 3 joined by a narrow bridge 4, all made from a single piece of metal as by drop forging or flame cutting; the pick boxes are connected by pairs of links 8 made in one piece by drop stamping and comprising circular bosses 9 projecting from a common web 10, with an integral projection 11 between the bosses provided with guide surfaces 12, the bosses 9 fitting in holes 15 in the wings 3 and being separated by hardened steel rollers 17 of larger diameter than the curved ends of the wings 3. Headless pivot pins 18 pass through the rollers 17 and bosses 9 into recesses 21 in the pick-boxes and are held by split pins &c. 22 at their tapered ends 20.
Patent GB-624837-A (GB)
Title: Improvements in or relating to resilient wheel bodies
IPC: B60B17/00
Filed: 1947-07-11
Abstract: 624,837. Wheels for vehicles. MALMQUIST, N. G. A., and SVENSKA AKTIEBOLAGET BROMSREGULATOR. July 11, 1947, No. 18543. [Class 144 (i)] In a resilient wheel wherein a hub and a rim are resiliently connected with each other by means of hub discs 10, 11 and a rim disc 12, at right angles to the shaft and interspaced by blocks 1, 2 of resilient material such as rubber clamped under axial compression between the discs 10, 11, 12 and having sheet metal coverplates 3, 4 on their surfaces facing said discs, the said cover-plates 3, 4 have, at least under working conditions, their outer sides concave and are each provided with a central, conical projection 5 co-operating with a corresponding recess 6, 7 or 8 in the discs 10, 11 or 12 respectively so that they bear against the discs only along their outer periphery and at their central projection 5. The projections 5 may have a central boring and the two seated in the recesses 8, which may form a through hole drilled in the disc 12, may house a longitudinally and transversely split retaining sleeve 15. The coverplates 3, 4 may be flat when in a free state, becoming outwardly concave when clamped, with the resilient blocks 1, 2, between the discs 10, 11, 12. The cover-plates 4 may be provided with locating pins 13 near their periphery engaging in corresponding holes 14 in the disc 12. Specifications 449,738 and 476,543 are referred to.
Patent GB-617058-A (GB)
Title: Improvements in building blocks
IPC: E04B2/02
Filed: 1944-09-28
Abstract: 617,058. Picking-up tools. WORTHINGTON, W. J., and BODGER, F. W. Sept. 28, 1944, No. 18566. [Class 61 (ii)] [Also in Group X] A lifting appliance for a building block 10 comprises a head 18 to engage an undercut groove 12 in the block and a hooked stem 19 for engagement by the handle of a builder's trowel 21.
Patent GB-771890-A (GB)
Title: Improvements in or relating to electrical ignition systems of gas-turbine engines
Inventor: WEST HAROLD EDWARD WILLIAM
IPC: F02P15/00
Filed: 1954-06-24
Abstract: 771,890. Ignition systems. ROLLS-ROYCE, Ltd. June 17, 1955 [June 24, 1954], No. 18599/54. Addition to 697,953. Class 7 (4). [Also in Group XXVI] In the ignition means described in the parent Specification the successively actuated igniters 19, Fig. 1, or groups thereof are the igniters of a number of gas-turbine engines. A power plant comprising sixteen continuous-combustion gas-turbine engines 1-16 arranged in four rows may be installed in an aircraft wing, not shown, to create a lift force for assisting take-off; each engine has two igniters 19 associated with its combustion equipment, which igniters are connected, as shown, to provide eight circuits AA-HH, each having four igniters in series, the circuits AA, CC, EE, GG and BB, DD, FF, HH being energized from ignition means 18 and 17 respectively. The means 17, 18 which are described in the parent Specification are caused to operate in unison by a coupling consisting alternatively of a resistance, a transformer with single-turn oppositely-wound coils or as shown in Fig. 4, a condenser 50 between points intermediate the spark gaps 36 and the ratchet-operated distributor arms 39 ; each igniter 19, Fig. 1, is energized once during each rotation of the distributor rotor arms 17a, 18a. In a modification, the power plant comprises four engines 20-23, Fig. 2, each with two igniters 20a-23a and 20b-23b connected as shown with ignition means 26 and 28, respectively. This arrangement may be applied to a power plant consisting of more than four engines and also to an arrangement as in Fig. 1, wherein the igniters are disposed in sets to be energized simultaneously. Each ignition device may embody a resistor having one end connected to earth and the other end connected to a point intermediate the spark gap and distributor rotor arm.
Patent GB-723587-A (GB)
Title: Improvements in or relating to chains and chain conveyors
Inventor: FREDRIKSON GUSTAF
IPC: B65G17/38
Filed: 1952-07-23
Abstract: 723,587. Conveyer chains. FREDRIKSONS VERKSTADS AKTIEBOLAG. July 23, 1952, No. 18628/52. Class 24 [Also in Group XXX] In a conveyer consisting of a number of parallel chains each of which is flexible in two directions substantially at right angles to each other, each link is shaped as shown in plan and elevation in Figs. 4 and 6, respectively, a pin 9 of circular cross-section shown in elevation in Fig. 8 being embraced by the bent end 10 of the link and held in place by a pin 14 which passes through circular apertures 13 in the ends 8 of the link, a circular aperture 11 in the pin 9 and elongated apertures 12 in the bent end 10. The heads 15 of the pins 14 are semi-circular, Fig. 11, and their flat surfaces bear on a guide. The lower part 16 of the pin 9 is in the shape of a sector of a circle and is engaged by a toothed driving wheel. The side frames 1 of the conveyer are connected by cross-beams 2, Fig. 2, which are formed with recesses 3 to receive the chains. Steel bars 4 placed in the bottom of the recesses support the chains. A flat bar 6 is placed between the chains.
Patent GB-188367-A (GB)
Title: Improvements in garden or like rollers
IPC: A01B29/02
Filed: 1921-07-09
Abstract: 188,367. Eley, C. V. A., and Elwell, Ltd., J. July 9, 1921. Rollers, land, garden and road.-A motordriven roller comprises two roller members driven by frictional or chain gearing; in modifications it may be driven reversibly. As shown in Fig. 1, the roller consists of two members 50 mounted coaxially, and a frame 52 mounted above the roller members and carrying a handle 51 and engine 54. The members 50 have each a sprocket wheel 69 driven by a chain 68, cross-shaft 64, shaft 62, clutch 58 and the engine shaft 57, a differential 65 being inserted between shaft 62 and cross-shafts 64 in order that the roller may move in a curve. The clutch 58 is controlled by a lever 61 and cable 60. The roller shown in Fig. 3 has a friction drive consisting of discs 78 on the cross-shafts and intermediate friction discs 84 contacting with a part 85 of each roller member of reduced diameter. The upper frame carrying the engine &c. is pivoted at 72 to the lower frame 71 so that the roller may be reversed without moving the roller members. To do this the clamp 86 is loosened, thus disengaging discs 78, 84, and the upper frame is rotated about the pivot 72 until the discs 78 reach the discs 84 at the other side of the frame 71, where the clamp 86 is again tightened. In a modification, Fig. 5, the friction discs 78, 84 are brought into engagement by means of a hole 89 in the frame 71, diametrically opposite holes 88 in a lug 87 on the upper frame, and a rod 93 having a screwed portion 91 engaging a nut 92 on the upper frame, and being controlled by a handle 94 and gearing 95. Spring-pressed studs 101 on the frame 71 hold the discs 78, 84 out of engagement with one another when the rod 93 is slackened. In another modification, Fig. 7, the frame 120 is pivoted to the axle 117 and a plate 123 carries the engine 124 and the friction discs 127 for the roller members, the discs being driven by chains 126 from the counter-shaft 121. The plate 123 slides on the frame 120 by means of a nut 128 on the plate 123 and a screwed rod 127<a> so that the discs 127 can be moved out of engagement with the roller members. Where friction discs are used, a differential may be utilized if required. Specification 185,261 is referred to.
Patent GB-911799-A (GB)
Title: Valve for fluids
IPC: A01J5/04
Filed: 1960-05-26
Abstract: 911,799. Pipe joints; junction pieces. SEPARATOR A.B. May 26, 1960 [May 29, 1959], No. 18650/60. Class 99(1). [Also in Group XXIX] A tubular valve member 2, preferably of rubber or synthetic plastic material and held against rotation by a pin 7 engaging a slot 6, has a port 4 which is brought into register with a housing port 11 when the valve member is pressed inwardly by the action of pushing a hose 10 over an enlarged end 9 and is drawn out of register with the port 11 when the valve member is pulled outwardly by removal of the hose. The housing is shaped at 8 so that the hose forms a seal therewith when the valve is open. The valve is suitable for connecting a milking machine with a source of vacuum. In a modification, the tubular member is of smaller diameter than the bore in which it operates and carries a rubber &c., sleeve which coacts with the port 11. .
Patent GB-664342-A (GB)
Title: Automatic clutch control mechanism
IPC: F16D11/04
Filed: 1947-07-14
Abstract: 664,342. Operating clutches. JOHNSON, H. A. March 23, 1950 [July 14, 1947], No. 18680/47. Class 80 (ii). Control mechanism for the spring-engaged dog clutch of a power press or like machine, such that the clutch normally disengages after one revolution irrespective of release of the control pedal but can when desired be held engaged until the pedal is released, comprises a pair of spring-loaded plungers 5, 22 slidable in a casing 20 and normally connected together by a pivoted catch 31, the plunger 5 carrying at one end a roller 4 normally coacting with a cam projection 17 on the movable clutch member 3 so as to hold the clutch disengaged, and the plunger 22 being connected at the other end by a bell-crank lever 24, 25 to a pedal-actuated rod 19. When the pedal is depressed, the plungers move together to the right to withdraw the roller 4 from member 3 so that the clutch engages. During the course of the ensuing revolution, a cam projection on member 3 coacts with a roller 37 to tilt a spring-loaded lever 34 connected to the catch 31 by a link 35 so as to release plunger 5 which is accordingly returned by its spring into the path of the cam 17, so that the clutch inevitably disengages after one revolution. The lever 34 is pivoted on a crank pin 38 carried by a rotatable disc 45. By turning the latter clockwise by a handle 43, the roller 37 is moved out of the path of its cam and the clutch now remains engaged until the pedal is released.
Patent GB-503516-A (GB)
Title: Improvements in building construction
IPC: E04B5/23
Filed: 1937-07-06
Abstract: 503,516. Floors ; roads. SERCOMBE, N., and SPARKS, M. R. July 6, 1937, No. 18790. Void. Convention date, March 15. [Classes 20 (iv) and 107] A floor comprises a plurality of beams 3 of triangular cross-section arranged side-by-side to span the space between the walls of a building, and reinforeed-concrete 6 cast between the beams to a level above the apices of the same. The beams may be hollow and formed of asbestos-cement, or they may be of solid reinforced-concrete construction. The invention is stated to be applicable also to the construction of roads.
Patent GB-519570-A (GB)
Title: Process for the manufacture of sulphur trioxide
IPC: C01B17/76
Filed: 1938-06-24
Abstract: 519,570. Sulphur trioxide. SOC. DES. PRODUITS AZOTES. June 24, 1938, No. 18842. Convention date, June 28, 1937. [Class 1 (i)] A gaseous mixture containing at least 30 per cent. of sulphur dioxide and enough oxygen to combine therewith is passed over an active catalyst and the sulphur trioxide produced is separated by direct condensation. The gases may be treated in several stages with removal of the product after each, or they may be recirculated over the same catalyst. Specification 12028/89, [Class 55], is referred to.
Patent GB-938796-A (GB)
Title: Clamps for tubular scaffolding poles and method of making such clamps
IPC: E04G7/16
Filed: 1960-05-27
Abstract: 938,796. Scaffold clamps. FERUNION MAGYAR KULKERESKEDELMI VALLALAT. May 27, 1960 [June 8, 1959], No. 18898/60. Class 44. In a pivoted or fixed scaffold clamp of the type having U-shaped stirrups as at 1 in which the pole 5 is clamped as by a bolt 4, the shanks of each stirrup are outwardly inclined and are short so that a line joining the seats 6 for the bolt would intersect the pole, the bolt being curved; it may be of circular cross-section. The fixed clamp may be made of a single crossshaped piece of metal (see Figs. 3 to 6, not shown).
Patent GB-1392508-A (GB)
Title: Microcontainers
IPC: C12N11/04
Filed: 1972-04-24
Abstract: 1392508 Cored filaments SNAM PROGETTI SpA and PROTEZIONE RICERCA INDUSTRIALE SA 24 April 1972 [22 April 1971] 18963/72 Heading B8C A filamentary product, comprising a hollow filament having a diameter not greater than 100Á and comprising a core containing an active substance which is released when the filament wall is ruptured, is made by conventional concentric spinning methods using fluid core and sleeve materials. Preferably both are liquids and the sleeve material is one which may be solidified by passage through a chemical hardening bath, e.g. cellulose acetate or xanthate, or polyacrylamide. Alternatively, the sleeve material may be a thermoplastic, e.g. polyethylene. The core may be placed centrally or eccentrically and may be a liquid such as a solution of an adhesive (e.g. a CS 2  solution of polyisobutylene) or an enzyme (e.g. invertase in aqueous glycerol), an aqueous suspension of an insoluble particulate material or a liquifiable solid, e.g. stearic acid. Preferably, the viscosities of the liquid core and sleeve materials are approximately equal, that of the core material being adjusted if necessary.
Patent GB-705648-A (GB)
Title: Improvements in or relating to hand truck
IPC: B62B1/00
Filed: 1952-07-28
Abstract: 705,648. Hand trucks. HOOZ, B. July 28. 1952, No. 18997/52. Class 108(1) A toe-plate truck 10 provided with wheels 25 running on an axle 38 has a castor wheel 31 mounted on the plate member '30 pivoted to a pin 36 parallel with the axle. The truck body is supported from the upper side of the plate member 30 by means of a telescopic strut 32 provided with a locking device to enable the inclination of the truck body to be varied.
Patent GB-437833-A (GB)
Title: Improvements in or relating to the manufacture of phosphoric acid-containing fertilisers
IPC: C05B1/02
Filed: 1934-06-27
Abstract: <PICT:0437833/III/1> Phosphoric acid containing fertilizers, i.e. superphosphates, are prepared by reacting sulphuric acid and a part of the phosphoric acid containing material to produce phosphoric acid but no monocalcium phosphate and reacting the resulting product with a further quantity of the same or a different phosphoric acid-containing material whereby super phosphate is formed, the reactions being carried out at different times and in different vessels without substantial quantities of the compounds formed during the process being separated.  The initial material reacting with sulphuric acid may be tricalcium phosphate or monocalcium phosphate, say in the form of a portion of the superphosphate previously prepared by the process.  The two steps may be carried out continuously, the first in a container provided with stirring means and the second in a mixing apparatus such as a mixed screw device. An excess of sulphuric acid may be employed in the first stage corresponding additional phosphate material being added in the second stage.  The first stage may be so conducted that the phosphate material first comes into contact with phosphoric acid only.  This may be effected by bringing the raw material into the upper part of the decomposition container and the sulphuric acid into the lower part thereof.  Either or both of the two steps may themselves be divided into several stages, by introducing the corresponding quantities of the phosphoric-acid containing raw materials in portions and if desired also at different places. According to one example sulphuric acid is fed from a container 9 into the lower part of a reaction vessel 6 and raw phosphate is introduced into the same vessel from a container 10 and a distributer 11.  The mass proceeds via a tube 12 to a vessel 7 in which the reaction continues.  The paste passes via an overflow 8 into a mixing apparatus 13 where the residual portion of the phosphate flows in from the distributing device 11.  The product leaves via 14 and is removed on a conveyer belt 15.  The Specification as open to inspection under Sect. 91 describes also a modification of the process in which both raw phosphate and superphosphate previously prepared by the process are reacted with sulphuric acid in the first stage, the resulting product being reacted with further raw phosphate in the second stage.  This subject-matter does not appear in the Specification as accepted.