baber/WOPTO huggingface dataset:
Patent GB-147498-A (GB)
Title: A device for reversing propeller blades
IPC: B63H3/04
Filed: 1920-07-08
Abstract: 147,498. Burchard, C. Oct. 23, 1918, [Convention date]. Screw propellers.-Propeller blades are reversed during rotation of the propeller by means of a device operated by the momentum of the shaft. The propeller shaft a is provided with an inner rod c for operating the blades, secured by a pin d passing through slots a<1> in the shaft to a ring e rotating with the shaft. A sleeve f surrounds the ring e and is screwed on to another sleeve f<1> which encloses the thrust-collar h of the shaft. Two clutch disks i, i<1> are adjustably mounted on the shaft, and are guided' by rings k, k<1> on rods l, which also carry a sliding brakedrum n which may be moved to the right or left by a hand-lever. When the brake is applied to the sleeve f<1> held by the collar h, the sleeve f screws itself off the sleeve f<1> until a catch withdraws the brake from the sleeve f<1> and allows the sleeve to regain its speed. When the sleeve f is clutched to the brake and moves to the right, it strikes a roller at the end of its stroke attached to a lever which separates the two parts. An automatic disengagement thus takes place at the end of the movement of either sleeve. In order to avoid damage where the difference of speed between the revolving sleeve and the retarded sleeve is considerable, a countershaft reducing- gear is used. The countershaft 1, Fig. 6, carries a gear-wheel 2 meshing with a gear-wheel 3 carried by the propeller shaft a. The shaft 1 also carries loose gear-wheels 4, 5 meshing with gear-wheels 6, 7 on the sleeve f<1>. A brake drum 8 is adapted to slide on the shaft 1 between the wheels 4, 6. The sleeve f is connected by a bolt 13 to the rod c and to the shaft a, so that it may slide but not rotate on the shaft. The wheels 4 and 5 have a smaller and larger number of teeth respectively than the wheel 2, so that the speed of the sleeve f<1> is reduced or increased according as the wheels 4 or 5 are in gear. The control lever o is mounted on a spindle provided with a fork 10 controlling the collar 11 which operates the brake drum 8. The sleeve f carries a collar 14 having pins 15 which engages with a fork which is interconnected with the lever o by a lost-motion device, which disconnects the brake drum 8 at the end of the travel of the sleeve f.
Patent GB-1273314-A (GB)
Title: Draw-twisting machines
IPC: B65H54/38
Filed: 1970-04-23
Abstract: 1,273,314. Building motions. ZINSER-TEXTILMASCHINEN G.m.b.H. 23 April, 1970 [2 May, 1969], No. 19514/70. Heading DID. The speed of reciprocation of ring rail 10 is varied in at least one direction of its reciprocation so as to avoid the formation of grooved packages which would otherwise occur. As shown, the ring rail 10 is reciprocated by hydraulic cylinder 10. The flow of fluid to the cylinder is controlled by valve 33 which is operated by displaceable limit switches (not shown) to reverse the ring rail, the normal speed of the ring rail is controlled by metering valves (not shown) in valve 33. The normal speed of the ring rail is varied to avoid predetermined critical regions in which a grooved package would form by a programmed control device 40 acting on the metering valves. The speed of the ring rail can be increased continuously or step-wise in the critical regions. The spindle speed can also be altered from its normal value during the critical regions by the programmed control device. The normal speed of the spindles may be programmed to vary during winding.
Patent GB-196042-A (GB)
Abstract: 196,042. Bussereau, L. Jan. 10, 1922. Rotary distributors for internal-combustion engines comprise a conducting disc 20 mounted on a rotating shaft, for example the cam shaft, and provided with a face contact cam 22 which makes contact successively with stationary spring actuated ball contacts 8 connected to the sparking plugs The tubes containing the balls 8 are each provided at the end with a flange of narrower bore which prevents the balls 8 from contacting with the disc 20.
Patent GB-186206-A (GB)
Title: Improvements in scooters
IPC: B62K3/00
Filed: 1921-07-22
Abstract: 186,206. Barlow, H. J., Smith, W. H., and Moore, T., (trading as Barlow & Co., H. J.). July 22, 1921. Disc wheels.-Wheels for scooters are formed of two discs k having internal bosses k<1> driven over a steel tube k<2>.
Patent GB-243419-A (GB)
Title: Improvements relating to slabs for walls and the like
IPC: E04C2/08
Filed: 1924-08-20
Abstract: 243,419. Potter, J. A. Aug. 20, 1924. Metal slabs.-A rectangular metal slab for buildings comprises a Hat or slightly concave iron plate having (1) a roughened or serrated outer surface to which a weatherproof coating will adhere, (2) flanges on all four sides which are serrated at e to receive the usual laths, and perforated and provided with facing strips g for securing.them to the flanges of adjacent plates, and (3) wooden strengthening battens stretching right across the slab between the flanges and being either wedged under flanges d projecting from the main flanges or bolted to the main surface of the plate. The laths are nailed to the battens. Bolts passed through the holes in the flanges of adjacent. slabs secure them to one another or to an interposed T-iron structural member.
Patent GB-294644-A (GB)
IPC: F22G7/14
Filed: 1928-07-06
Abstract: 294,644. Schmidt'sche Heissdampf- Ges. July 29, 1927, [Convention date]. Superheating by steam.-Interstage steam is superheated in a heat exchanger 7 by the circulation of steam generated in an auxiliary boiler 5 having U-tubes 4 projecting into the return flue 2 of a marine boiler. The condensate from the heating coils of the heat exchanger returns to the auxiliary boiler through a pipe 8. A valve 11 allows the auxiliary steam when it rises above a certain pressure to pass through a coil 12 in the water space of the main boiler. The condensate from the coil 12 flows into 'the water drum 6 of the auxiliary boiler. In a doubleended marine boiler, the U-tubes of the auxiliary boiler pass from a smoke-box through some of the smoke tubes into the central return flue. Specification 177,824 is referred to.
Patent GB-745754-A (GB)
Title: Improvements in inflation valves
Inventor: BARBER FREDERICK
IPC: F16K15/20
Filed: 1953-07-16
Abstract: 745,754. Inflating valves. KIDDE CO., Ltd., W. July 7, 1954 [July 16, 1953], No. 19750/53. Class 135. A non-return inflation valve for inflatable dinghies, life jackets, and other objects inflated by the release of gas from a sealed container comprises a body member 1 having a bore with a valve seating 12 adjacent its lower end, and a valve-carrying member 14 movable longitudinally in the bore and carrying a valve member 17 at its lower end, the valve-carrying member being surrounded by a spring 11 which urges it upwardly to cause the valve member to engage its seating and being formed with a longitudinal passage 18 closed at the bottom and with one or more lateral outlet apertures 19. The member 14 is guided at its upper end by an enlarged part 15 and at its lower end by a shoulder 10 in the bore of the body. The downward movement of the member 10 is limited by a shoulder 16. A nozzle piece 8 containing a washer 9 is attached to the top of the body member 1. The body member 1 is secured to the inflatable article by a patch 2 having a moulded flange 7 held between a grooved flange 3 on the body member and a ring 6. The valve is arranged not to close until the pressure differential across it is small. The total area of the apertures 19 is approximately the same as the cross-sectional area of the passage 18.
Patent GB-729767-A (GB)
Title: Means for discharging centrifugal machines
IPC: B04B3/06
Filed: 1952-08-06
Abstract: 729,767. Centrifugal separators. WATSON, LAIDLAW & CO., Ltd., and LAMONT, R. W. Sept. 24, 1953 [Aug. 6, 1952], No. 19769/52. Class 23. In a strainer separator in which the basket includes a frusto-conical part 11 means are provided for vibrating the basket-wall to loosen solid material adhering thereto. An electrical vibrator 14 mounted on a wheeled carriage 15 is brought into contact with the cylindrical part 12 of the basket by a manually operated linkage 17 ... 20. In a modification the linkage is electrically operated. In further modifications the vibration is caused by bringing spring-loaded rollers into engagement with cams attached to the cylindrical part 12 or the basket rim. The basket may be provided with discharge valves.
Patent GB-530940-A (GB)
Title: An improved oil-pressure-sensitive signal switch
IPC: H01H35/34
Filed: 1939-07-07
Abstract: 530,940. Actuation of switches. SCHLAICH, H. July 7, 1939, No. 19774. Convention date, July 13, 1938. [Class 38 (v)] The movable contact q mounted on a diaphragm e so as to work in oil in response to the oil-pressure, has three sharp contact points s spaced round the periphery and cooperating with a contact r. The securing-nut o is urged downwards by the spring i. The arrangement is such that contact is made even if two of the points are obstructed by solid foreign bodies in the oil, but the points are capable of penetrating solid insulating matter. The contacts may be of hard-rolled pure nickel.
Patent GB-337378-A (GB)
Title: Improvements in electric light signs
IPC: G09F19/00
Filed: 1929-06-28
Abstract: 337,378. Hartung, P. June 28, 1929. [A Specification was laid open to Inspection under Sect. 91 of the Acts, Nov. 13, 1929]. Illumination, changing advertisements by controlling; actuating.-In electric letter signs which appear to change in size by sets of lamps being illuminated in succession the control switches are so arranged that the set of lamps forming a letter of any one size is not extinguished till after the adjacent set of lamps has been lit. Fig 2. shows contact-makers 6 reciprocated by cams 9 on a rotating shaft 8, the parts being dimensioned so that contact with one set of lamps 2 is not broken till after contact with the next set is made. Fig. 10 shows a rotary switch controlling the lamps of the letter 0, the switch contacts being formed by surrounding a metal cylinder 14 with a sleeve 16 of fibre or other insulating material having suitable perforations a-g. Coloured lamps may be employed and may give the effect of a shadow on one side of the letters.
Patent GB-918251-A (GB)
Title: An improved mineral ripping machine
Inventor: CAMERON RONALD
IPC: E21D9/10
Filed: 1960-06-07
Abstract: 918,251. Mineral-mining machines. JOY-SULLIVAN Ltd. Aug. 8, 1961 [June 7, 1960], 19901/60. Class 68 (1). A carriage 12 is mounted for longitudinal movement along a self-advancing base 10 and at the leading end of the carriage is mounted for rotation about a horizontal axis extending longitudinally of the carriage a cutter-carrying arm 26 that may be swung in a vertical plane through an arc of at least 180 degrees to remove mineral from the face. Preferably, a number of pick-armed cutter drums 31, 32 are mounted on the leading face of the arm to rotate about axes extending at right angles to the arm. The arm is swung by actuation of two hydraulic rams 50, 46 acting on circumferentially spaced lugs 49, 45 integral with a longitudinal tube rotatably mounted on the carriage. Rotatably mounted in this tube is a further tube to the leading end of which is secured the arm. The ram 50 is pivotally mounted at 51 on a bracket 52 secured to the carriage and the ram 46 is pivotally coupled at 47 to the outer end of the arm 26. Vertically adjustable roofsupporting means are mounted at the top of arch frames extending up from the base above the carriage.
Patent GB-1442904-A (GB)
Title: Stump pulling implement
IPC: A01G23/06
Filed: 1974-05-07
Abstract: 1442904 Stump pulling implement ROCKLAND Inc 7 May 1974 19957/74 Heading B8H A stump pulling implement comprises a frame attachable to a vehicle by hitch means, a pair of arms pivoted at their forward ends to the frame, a stump-engaging wheel on each arm and means for pivoting the arms towards each other to clamp a stump therebetween and lift it out of the ground as the wheels rotate forwardly, under traction from the vehicle. In the Figure wheels 28 are mounted on pivotable arms 26 such as to be drawn closer together as the traction increases in order to increase the grip as necessary to remove each stump. Roots are cut away by disc blades 60 and plough shovels 62 and teeth 32 help to drive the wheels 28 along the ground. Two alternative hitch arrangements are disclosed (Figs. 2 and 6 (not shown)).
Patent GB-1473031-A (GB)
Title: Hollow-charge explosive device
IPC: C06C5/04
Filed: 1975-05-13
Abstract: 1473031 Hollow charge cutting devices SOC NATIONALE DES POUDRES ET EXPLOSIFS 13 May 1975 [28 May 1974] 20123/75 Addition to 1367013 Heading F3A An elongated hollow charge explosive device for cutting steel ship hulls under water, comprises an explosive charge 4 and elongated elements 1 and 2 formed of a ductile and readily deformable metal or alloy, the element 2 being closed at its ends and filled with a gas. The end closures for the element 2 are plugs having provision for securing a detonator. The passage filled with explosive has a volume from one to three times that of the gas-filled passage 5; and the separating wall between the two passages constitutes at least 25% of the surface of the gas-filled passage. The wall thickness of the element 2 has a minimum thickness of from 3 to 10% of the average width of the device. The elements 1 and 2 are made from lead or lead-antimony alloy and permit the device to be bent to the shape required for cutting.
Patent GB-265076-A (GB)
Title: Improvements in a device for making signs
IPC: G09F7/16
Filed: 1926-08-16
Abstract: 265,076. Bagnall, J., and Copeman, P. G. Aug. 16, 1926. Stencils and stencilling apparatus.-In devices for making signs by spraying around characters supported in an open hinged frame, the characters 6 are provided with a resilient under surface of rubber &c. 8 which yields to the inequalities of the sign face. The characters 6 and borders 7 are preferably, of heavy metal and the characters are adjustably attached to cross-bars 2, 3 mounted in a common plane on a frame 1 hinged at 5 to a table 4.
Patent GB-721714-A (GB)
Title: Heat-sealable laminated or coated wrapping material
IPC: C08J7/052
Filed: 1952-08-11
Abstract: 721,714. Coated films and papers; compound sheet materials. BRITISH SIDAC, Ltd. (Cornwell, R. T. K.). Aug. 11, 1952, No. 20173/52. Class 140. A heat-sealable wrapping material comprises a film or coating of polythene bonded to one or both sides of a layer of paper or regenerated cellulose sheet containing a thermoset resin. The paper or regenerated cellulose sheet may be impregnated with an aqueous solution or dispersion of a partly polymerized melamine-, urea-, ketone-, or phenol-formaldehyde resin, or the aqueous resin may be added to the pulp during the manufacture of the paper. The polythene is applied without the use of a solvent by hot-pressing a preformed film of polythene on to the resin-impregnated base, by applying powdered polythene which is melted, e.g. by a heated blade, by spraying powdered polythene through a flame, by transferring a layer of polythene from a metal surface, or by pressing a hot, freshly-extruded film of polythene on to the base by chilled rollers. The hot film may be stretched between the extruding device and the nip of the rolls, the surface of which may be plain, engraved, or embossed. The polythene may be modified by adding natural or synthetic rubber, wax, resin, bitumen, polyisobutylene, dyes, and pigments or fillers such as chalk and titanium dioxide. The product may be used as bottle top liners, wrapping and packaging, camouflage strips and netting. Specifications 623,355, [Group IV (a)], and 623,357 are referred to.
Patent GB-1193933-A (GB)
Title: Improvements in or relating to Mechanisms for Power Operating Door or Gate Arrangements
Inventor: WILLIS JOHN BONELLE DONALD
IPC: B66B13/12
Filed: 1968-04-29
Abstract: 1,193,933. Opening and closing lift doors. EXPRESS LIFT CO. Ltd. 2 April, 1969 [29 April, 1968], No. 20207/68. Heading B8L. The cage and landing doors 8, 24, of a lift, Figs. 1, 2, are operated by an electric motor 1, a lever 3 and a resilient telescopic linkage 5, 6, the latter ensuring that both doors close fully despite mis-alignment of the cage and landing door stops. The door 8 is opened when the lever 3 is rotated anti-clockwise through 180 degrees. During this movement a cam 21 moves a hook 19 into engagement with a projection 18 so that in the first part of the door closing movement, when the lever 3 is turning clockwise, the telescopic member 5, 6 is effectively solid. When the door is approximately half closed the hook 19 is disengaged from the projection 18 and if the door is now obstructed the continued movement of the lever 3 draws the rod 5 out of the tube 6 against the spring 17 until a roller 14 has moved from the end of the rod 5, where it normally rests, to the top of the rod. This disconnects the linkage between the door 8 and the lever 3. If the lever 3 reaches the door closed position and the door is still open the lever automatically repeats the opening and closing cycle. The landing door 24 is coupled to the cage door by vanes 22, 23 which engage either side of rollers 35, Fig. 2, on a pivoted hook plate 31, which engages a projection 33 to hold the door closed. When the cage door 8 starts to open, the vane 23 is allowed to descend by links 25, Fig. 1, 30, 28, which are released by a finger 26 on the lever 3, to engage the rollers 35 on the landing door thereby disengaging the hook plate 31. The landing door is now pushed open by the vane 22. During closing the vane 23 pushes the landing door. If the landing door closes before the cage door, the latter stops until such time as the vane 23 is disconnected from the cage door by the finger 26 on the lever 3. The spring 17 then completes the closing movement. In a modification, the hook 19 and projection 18 may be replaced by an adjustable spring- loaded device.
Patent GB-235425-A (GB)
Title: Improvements in or relating to alarm check valves
IPC: F16K15/03
Filed: 1924-08-27
Abstract: 235,425. Lewis, L. M. Aug. 27, 1924. Fluid-actuated valves.-An alarm check valve of the type described in Specification 178,293, [Class 47 (ii), Fire-extinguishing &c.], and particularly applicable for use on automatic fire extinguishing systems of the sprinkler type has the valve controlling the alarm passage supported by the main hinged valve member in such a way that it can be adjusted towards or away from the main valve member and also in an angular direction. In the form shown in the Figures, the main valve 15 has eyes 19 whereby it is rotatably mounted on a shaft 21 secured in the casing and has a lug 47 for supporting the supplementary valve. The supplementary valve co-operates with a seat 24 and comprises a valve member 23 normally held by a spring 41 against a shoulder 39 on a housing 34. The housing 34 is screwed into an L-shaped member 37 secured by a pin 63 to a shaft 60 which is adjustably mounted in a forked member 50. When adjusted the shaft is secured by nuts 61 and a pin 51. The forked member has a screwed shank adjustably mounted in the lug 47 on the main valve member and is secured after adjustment by nuts 53, 53<1> and a pin 65.
Patent GB-644248-A (GB)
Title: Improvements in or relating to loading platforms
IPC: B65D19/00
Filed: 1948-07-30
Abstract: 644,248. Pallets for handling loads. AKTIEBOLAGET BORGSJOVERKEN. July 30, 1948, No. 20315. Convention date, July 16. [Class 78 (iv)] [Also in Group X] A pallet for use with a fork lift truck comprises boards 12 and wooden beams 10 secured together by dovetail mortises 14 in the boards engaging tenons 16 of corresponding shape in the beams, the beams each comprising two wedge-shaped elements 18, 20 adapted on insertion into the mortises to be pressed against one another to produce a press fit, locking together the boards and beams. The elements 18, 20 are formed with apertures 24 which, when the elements are assembled, lie opposite one another and form passages for the forks of a lift truck.
Patent GB-422851-A (GB)
Title: Improvements in or relating to the protection of electric water heating apparatus
IPC: F24H9/20
Filed: 1933-07-19
Abstract: 422,851. Protective cut-out arrangements. REYROLLE & CO., Ltd., A., Hebburn - on - Tyne, and LEYBURN, H., (formerly LEBEN, H.), 212, Wingrove Road, Newcastle-on-Tyne. July 19, 1933, No. 20366. [Class 38 (v)] Polyphase electric water heaters of the kind in which the water is in direct contact with the heating elements, the casing E of the heater constituting an earthed neutral point of the system, are protected against earth faults by means of a directional relay G, Fig. 3, one coil G<1> of which is energized, in accordance with the earth leakage current, from current transformers K<1> ... K<3> in the supply circuit to the heaters, while the other coil G<2> is energized in accordance with the voltage in the circuit. In the arrangement shown, the voltage coil is energized from the open-delta-connected secondary windings M<1> ... M<3> of a potential transformer, whose primary windings L<1> ... L<3> are connected to the supply circuit. Overload protection for the heating apparatus is provided by means of overload trip coils N, N<1>, shunted by fuses N2, N3 and connected in series with the secondaries of the current transformers K', K<3>. In systems in which a power transformer A<1> ... A<3> is connected through two or more sets of feeders C<1> ... C<3> to a number of water heaters, each set of feeders is provided at the power supply end with a directional relay O which acts to cut out the feeder when, owing to an earth fault on the feeder, earth fault current is flowing through the feeder in a direction away from the source of power. In the arrangement shown in Fig. 4, one winding O<1> of the relay O is connected between the star points of the star-connected secondaries of current transformers P<1> ... P<3> in the feeders C<1> ... C', the other winding O<2> being energized from a current transformer Q in the neutral earthing connection A<4> of the power transformer secondary. In a modification, Fig. 5, (not shown), the winding O<2> is energized from the open-delta secondary winding of a potential transformer connected to the feeder.
Patent GB-238556-A (GB)
Title: Improvements in or relating to apparatus for sharpening veneer and like knife blades
IPC: B24B3/38
Filed: 1925-08-13
Abstract: 238,556. Kl³nder, B. Aug. 14, 1924, [Convention date]. Cutting-edges, shaping and treating; block apparatus. - A veneer or like knife 2 is clamped to a bed 1 and is sharpened by adjustable reciprocating hones or grinding- blocks 17. The hones are carried bv holders adjustably pivoted, to suit the bevel of the knife edge, to arms 16 pivoted on spindles 12 and pressed by springs 15, the arms being adjustable along the spindles by clamps 13 secured in position, by nuts and bolts 14. The spindles 12 are adjustably mounted on a carrier 4, which is reciprocated on rails 3 on the base by a cable 5 running over pulleys 6, one of which is driven through gearing 8 from pulleys 7, the direction of movement of the carrier being reversed by a rod 9 actuated by the carrier and moving a belt fork 11.