baber/WOPTO huggingface dataset:
Patent GB-133980-A (GB)
IPC: F41A19/03
Abstract: 133,980. Vickers, Ltd., and North, T. K. July 27, 1918. Machine guns.-Consists of means whereby the rate of fire may be regulated by the pressure applied to the trigger or firing-lever. Fig. 1 shows the invention as applied to an automatic rifle. The trigger A is pivoted to the frame at a, and carries an arm A<x> normally engaging a hook a<3> on the sear A<1>, which is pivoted to the frame at a<1>, and carries a projection a<2>, adapted to be depressed bv a cam B' on the recoiling firing-pin B to cause the rear end of the sear to rise into bent b. During this movement the sear lifts a rod C, forming part of a. dashpot comprising an oil-chamber C' divided into two compartments by a plate C<2> in which is a hole closed normally by a flap C'. A flexible diaphragm, stretching across the upper chamber, is attached to the rod C, so that as this is drawn upwards, the flap C<3> moves away from the plate C<2>, and oil passes freely from the lower to the upper chamber without materially retarding the movement of the sear into bent. On pressing the trigger, the arm A<x> is first disengaged from the hook-end a<3> of the sear, and pressure is applied through a spring A<3>, located between the trigger and sear, tending to disengage the sear from the firing-pin. The result is a downward movement of the rod C which is retarded because the oil in the dashpot is compelled to pass from the upper to the lower chamber through a small hole in the flap C<3>. By exerting greater pressure on the trigger, the spring A' may be compressed until its action on the sear is supplemented by direct pressure of the trigger arm A<x> against the under side of the sear. The rate of movement of the sear out of bent, and therefore the rate of firing, may thus be regulated by varying the pressure on the trigger. An adjustable screw a<4> may be provided to prevent, or restrict the extent of, the direct action of trigger on sear. Special features are described to enable the parts to be readily disassembled.
Patent GB-676612-A (GB)
Title: Improvements in and relating to hydraulic pumps and motors
Inventor: TOWLER JOHN MAURICE
IPC: F04B1/20
Filed: 1946-05-03
Abstract: 676,612. Swash-plate mechanisms. ELECTRAULIC PRESSES, Ltd. March 21, 1947 [May 3, 1946; June 17,1946; July 3, 1946], Nos. 13450/46, 18087/46 and 19839/46. Class 80 (iii). [Also in Groups XXVIII and XXIX] In a swash-plate pump or motor, the part of the ram actuating device that is contacted by the rams is connected to the cylinder block by means of toothed gearing serving operatively to connect the actuating device to the cylinder block, the ratio of teeth in said gear connection being such that there is a relative rotational displacement between the actuating device and the cylinder block but the ratio is less than the square of the secant of the angle of the face of the ram actuating device to the plane normal to the axes of the rams. Fig. 2 shows a stationary cylinder block 8 having cylinders 9 fitted with pistons 10 the ends of which engage a wobble plate 5 resting on a swash plate 4 driven through a flexible coupling or flexible shaft. The wobble plate has a gear ring 6 meshing with a gear ring 7 attached to the cylinder block so that the plate is driven in the reverse direction to the rotation of the shaft. To take thrust, a ring 16 is placed between the swash plate 4 and the casing. The ring 16 may be hardened steel, the swash plate 4 may be steel or gunmetal faced with' white metal and the wobble plate 5 and thrust ring 16 may be faced with white metal; the white metal facings are on the surface to which the load is stationary. A steel washer faced with white metal may be pinned to the swash plate 4 and abut the wobble plate 5. The members transmitting the thrust are arranged to be free to tilt on the opposing surface to form a wedge of oil supplied through ducts 20 and grooves 19; the thrust faces may be slightly concave. In arrangements where the cylinder block is also rotated the gear drives the wobble plate in the same direction as the block but faster. Specifications 380,578 and 489,691, [Group XXVIII], are referred to.
Patent GB-134847-A (GB)
IPC: A63B21/00
Abstract: 134,847. Werndli, H. Nov. 6, 1918, [Convention date]. Apparatus for giving general or special exercises to the arms, legs and body; swings.- Relates to apparatus of the kind in which the user is suspended. Straps 9 pass over pulleys 1, 2, fixed to the ceiling &c., and also round pulleys 10, to which stirrups 15 are attached. Handles 8 are attached to the free ends of the straps 9. The apparatus is used as shown in Fig. 5. Holes 6 are provided so that the handles 8 may be hooked to the desired part of the straps 9. Stops 16 limit the downward movement of the handles 8. A swing may be formed by hooking a bar 18 to the blocks of the pulleys 10 and by passing hooks 9' on the handles 8 through loops 17 on the straps 9. The pulleys 10 may be removed and the handles 8 and stirrups 15 attached to the free ends of the straps 9 which pass over the pulleys 2. The stirrups 15 may also be removed and the handles 8 hooked to both ends of the straps 9 so as to form two suspended handles or " rings."
Patent GB-972723-A (GB)
Title: Rocket motor
IPC: F02K9/70
Filed: 1962-04-09
Abstract: Semi-solid monopropellants for a rocket motor having a plurality of combustion chambers include double-base propellants such as nitroglycerine gelled by nitrocellulose and, more generally, those comprising a dispersion of a finely-divided insoluble oxidizer in an oxidizable liquid fuel.  Suitable liquid fuels include hydrocarbons such as triethyl benzene, dodecane, liquid polyisobutylene, esters such as dimethyl maleate, diethyl phthalate, dibutyl oxalate, alcohols such as benzyl alcohol, triethylene glycol and ethers such as methyl-naphthyl ether. Oxidizers include ammonium, sodium and potassium perchlorate or nitrate and metal peroxides such as barium peroxide.  An additional fuel component in the form of finely-divided metal powder, of metals such as aluminium or magnesium, may be added as also may gelling agents such organic polymers like polyvinyl chloride, polyvinyl acetate, cellulose acetate, ethyl cellulose or the metal salts of higher fatty acids like sodium or magnesium stearates or palmitates.  Alternatively to the use of gelling agents, suitably viscous fluids such as liquid polyisobutylene, liquid siloxanes and liquid polyesters may be added. Specification 972,724 is referred to.
Patent GB-916331-A (GB)
Title: Electrical gaseous discharges and thermofusion electrical energy
IPC: H05H1/20
Filed: 1958-04-29
Abstract: 916,331. Thermonuclear apparatus. LEWIS, T. X. April 27, 1959 [April 29, 1958], No. 13600/58. Drawings to Specification. Class 39 (4). Thermonuclear apparatus comprises a toroidal vessel containing gas, means for producing a symmetrical magnetic field homogeneous at any section perpendicular to the axis of the torus and inherently suited to both stably confine and heat the gas, and means for electromagnetically inducing an electrodeless discharge through the gas. In one arrangement, Fig. 4 (not shown), the magnetic field is produced by a coil wound helically round the torus. In another arrangement, Fig. 6 (not shown), the torus is surrounded by a multi-phase winding.
Patent GB-934141-A (GB)
Title: Improvements relating to flow machines
IPC: B64C9/38
Filed: 1959-07-31
Abstract: 934,141. Axial-flow blowers and pumps. N. LAING. July 31, 1959 [Aug. 1, 1958], No. 13686/63. Divided out of 933,222. Class 110 (1). [Also in Group XXXIII] A flow machine of the axial-flow type comprises blades with openings in their trailing portions for the ejection of fluid from the blades to produce a " jet flap " effect such that the coefficient of lift of inner blade regions can be increased with respect to the coefficient of lift of outer blade regions on reduction of throughput. The " jet flap " effect is that already proposed for aircraft wherein air is ejected from a slot at the trailing edge of an aerofoil to form an air jet having the effect of a flap but with greatly reduced losses. The air jet changes the lift coefficient of the aerofoil and reduces losses due to flow separation on the suction side. Fig. 1 shows the rotor of an axial-flow blower or pump, comprising a hub 1 carrying blades 3 and driven by a motor 2. Fluid is ejected from each blade through a slot 6, Figs. 1 and 2, at the trailing edge of the blade with the aid of the pressure produced by centrifugal effect. The ejected fluid has a "jet flap" effect which influences the circulation about the blade profile and hence the lift coefficient. Fig. 2, shows the blade profile at a plane II-II near the rotor hub, at which the direction 8 of ejection is at a large angle 7 with respect to the camber line 10, whereby the lift coefficient is increased at this plane. The blade thickness and the angle 7 both decrease towards the blade tip, whereby the increase in lift coefficient produced by the " jet flap " effect becomes smaller. Eventually, at a plane IV-IV the angle 7 has a negative value and a decrease of lift coefficient is produced by the " jet flap " effect. It is stated that the ratio of the lift coefficient of the outer blade regions to that of the inner blade regions is reduced on reduction of flow through the rotor. In alternative embodiments the slot 6 is provided only over inner blade regions and directed, somewhat as in Fig. 2, to increase the lift coefficient in these regions, or is provided only over outer blade regions and directed to decrease the lift coefficient in these regions.
Patent GB-310933-A (GB)
Title: Improvements relating to the photographic recording of sound
IPC: G11B7/00
Filed: 1929-05-02
Abstract: 310,933. associated Electrical Industries, Ltd., (Assignees of Gallahan, W.). May 3, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Light-valves.-In a system of recording sound by directing a beam of light through a Kerr cell arranged between a polarizer and an analyzer and impressing potential variations corresponding to the sound fluctuations on the electrodes of the Kerr cell, provision is made whereby the light reaching the sensitized record surface is' restricted to wave lengths substantially equally affected by the cell. The cell has a differential effect on the light of different wave lengths in the spectrum and a colour screen is inserted in the path of the beam which is' transparent to those wave lengths substantially or equally affected by the cell. Alternately, or in conjunction with a colour screen, a monochromatic source of blue light may be employed. The Figure shows a colour screen 16, transparent to blue light, and suitably made of gelatin dyed blue by aniline dye, inserted between an analyzer 11 and a lens 12 arranged in front of the travelling sensitized film 13. The Figure also shows the light source 1, lens 2, polarizer 3 and Kerr cell 4 with electrodes 5, 6 having terminals 8, 9 and with a window 7. The screen also annuls the blurring effect due to the yellow colour of the usual nitro-benzol of the cell.
Patent GB-314641-A (GB)
Title: An improved fire-alarm and fire-escape
IPC: A62B1/10
Filed: 1928-05-10
Abstract: 314,641. Hollis, J., Hollis, H. L., and Webley, A. May 10, 1928. Window appliances.-In a fireescape apparatus of the kind comprising an endless chain suspended without slip from a chain wheel with which a rotating speed gear and a braking device are associated within an enclosing casing so that the travel of the chain under a load is controlled by the load, an alarm bell operated by travel of the chain is provided. As shown, the chain x passes over a wheel h<2> unitary with a gearwheel h<3> fast on the shaft h mounted in a casing a, e, d. Loose on the shaft h is a pinion j pegged to a carrier j<2> for centrifugally-acting brake elements which co-operate with a ring l. The carrier is driven by rotation. of the wheel h<2> through a pinion o and gearwheel q on a shaft i, so that the braking action varies directly with the speed of the chain. The gear-wheels q, or the carrier j<2>, carries a cam q<2> which operates, through a rod r, the clapper of a bell g<2>. The casing is suspended by bolts f. The apparatus may be hung outside a building as at y with the slack of the chain coiled up in a box 3 or hanging freely within a box 2, the lid of which, in opening, may operate an electric alarm 4. Alternatively, the apparatus may be movable along a horizontal runway at the front of the building.
Patent GB-949618-A (GB)
Title: Improvements relating to diesel engines
IPC: F02B25/00
Filed: 1960-04-20
Abstract: 949,618. Two-stroke engine operation; cylinders; charge pumps. NYDQVIST & HOLM A.G. April 20, 1960 [May 11, 1959], No. 13813/60. Heading FIB. In a turbo-charged, loop-scavenged diesel with scavenge ports 11 arranged at one side of each cylinder symmetrically in relation to a plane containing its axis, each of the ducts immediately adjacent the plane having a rear wall portion 13 extending generally tangentially to the cylinder wall at the plane of symmetry, a side all portion 14 meeting the portion 13 at an angle 14a and a top wall portion 15 which becomes more nearly axial as it approaches the portion 14, the exhaust ports open before and close after the scavenge ports by a period such that, after scavenge port opening, the cylinder pressure decreases to a minimum value nearly as fast as during exhaust before such opening, and then remains constant or slowly increases during scavenging, after which due to increase of choke in the exhaust ports it increases rapidly immediately before or at scavenge port closure. The period may be from 4 degrees to 15 degrees of crankshaft rotation. There may be an electrically driven fan in the air intake of the turbo-charger compressor, which may deliver to the scavenge air receiver via a cooler. Specification 579,598 is referred to.
Patent GB-985576-A (GB)
Title: Improved ion exchange resin
Inventor: OSTER EUGENE ARTHUR
IPC: H01M50/409
Filed: 1962-04-10
Abstract: An ion exchange resin is the reaction product of a mixture comprising 1 to 3 parts by weight of formalin (a 37 weight per cent solution of formaldehyde), 1 part by weight of paraformaldehyde and 1 mol of p-phenolsulphonic acid per 1.1 to 1.8 mols of total formaldehyde which is present in the mixture as paraformaldehyde and as a formaldehyde solution. Products of improved strength and dimensional stability are obtained when about 0.1 mol of aniline per mole of paraphenolsulphonic acid is added to the reaction mixture.  The products are used to form ion exchange resin membranes either without supporting structures or preferably with a thin cloth reinforcement. The membranes can be used in fuel cells.  In examples (1) p-phenolsulphonic acid and formalin are stirred at - 5 DEG  to + 15 DEG  C. and powdered paraformaldehyde is then added to give a mixture of, by weight, 66% parasulphonic acid, 9% formaldehyde, 16% water and 10% paraformaldehyde.  After stirring at 5 DEG  C. for 2 hours, the product is used to impregnate a cloth of acrylonitrile polymer and heating at 50 DEG  to 110 DEG  C. in a press is effected; (2) 0.1 mol of aniline per mol of p-phenolsulphonic acid is also used in a similar process.  Specification 794,471 is referred to.ALSO:An ion-exchange resin membrane, suitable for use in a fuel cell, comprises a porous structure impregnated with the resinous reaction product of a mixture of 1-3 parts by weight 37% formalin, 1 part by weight paraformaldehyde and 1 mol of paraphenolsulphonic acid per 1,1-1,8 mols of total formaldehyde which is present in the mixture as paraformaldehyde and as formaldehyde solution.  The reaction mixture may contain in addition 0,1 mol aniline per mol of paraphenolsulphonic acid. In an example the mixture is poured on to a cloth of acrylonitrile polymer, the assembly being then heated at 50-100  DEG C. between sheets of glass in a press.  Specification 794,471 is referred to.
Patent GB-855051-A (GB)
Title: Suspension for oscillating axles of tractors and the like
Inventor: MOGK KARL JOHN
IPC: B60G9/02
Filed: 1959-04-23
Abstract: 855,051. Motor vehicle axles. CATERPILLAR TRACTOR CO. April 23, 1959, No. 13831/59. Class 79(4). A tractor has a frame 20 and an axle housing 18 disposed beneath and transversely of the frame, bearing means 21, 22 being arranged between the frame and axle to enable the axle to oscillate about an axis normal to and bisecting its own axis. The bearings are secured to the frame by brackets 23 and embrace trunnions 27, 28 secured to the differential housing 16 which is integral with the axle housing 18. A thrust plate 31 is secured to the trunnion 28 to co-operate with thrust washers 33 held in place by a cover 34. An oil seal 36 is provided on the rear bearing and at both ends of the front bearing. The tractor has a four-wheel drive from a gear box 13.
Patent GB-291093-A (GB)
Title: Method of heating stills particularly for the steam-distillation of fatty acids
IPC: C11C1/10
Filed: 1928-05-10
Abstract: 291,093. Metallbank und Metallurgische Ges. Akt.-Ges. May 27, 1927, [Convention date]. Fatty acids, distilling.-In distilling liquids, particularly fatty acids, in a still b by the heat of steam supplied from a boiler a and passing through a coil c, the higher temperatures required for the distillation of the higher boiling fractions are obtained by passing the steam through a compressor f..
Patent GB-540163-A (GB)
Title: Improvements in or relating to gas collecting mains for coke ovens
IPC: C10B27/06
Filed: 1940-09-04
Abstract: 540,163. Ascension pipes; hydraulic mains. JACKSON, L. MELLERSH-. (Koppers Co.). Sept. 4, 1940, No. 13876. [Class 55 (ii)] An hydraulic main 23 is divided by partitions 34, 35 into two longitudinal compartments 36, 37 communicating by a narrow passage 38 a spray nozzle 44 for a cooling liquid being provided in compartment 37. The ascension pipes 17 lead by curved sections 20 into compartment 36, and are provided with hydraulic cut off valves 25 operated by weighted levers 27, with closure caps 22, on removal of which deposits may be removed through openings 21, and with nozzles 29 through which cooling liquid may be sprayed into the main. Distillates of different character are condensed in each compartment 36, 37, and are run off through outlets 40, 41. So that different pressures may be maintained in each compartment, they may be separated by openings 54 controlled by valves 55, Fig. 5, and, when charging an oven, on opening a port 60 by raising a valve 61, smoke and the like during charging may pass directly to compartment 53 which is under reduced pressure while the hydraulic cut off valve 58 is in position. Plates 43 serve as a barrier to prevent condensates in compartment 37 entering the off-take pipe 42.
Patent GB-1321220-A (GB)
Title: Method of setting-up printing master and printing copy sheets  therefrom
IPC: B41M5/035
Filed: 1972-03-24
Abstract: 1321220 Duplicating G RITZERFELD 24 March 1972 [21 May 1971] 13931/72 Heading B6C A duplicating master 3 is imaged on one side in reverse with heat-transferable colouring matter from a carrier sheet 6 as characters 2 are impressed on its other side, then the reversed image 17 so formed is transferred by heat and pressure to one or more copy sheets. Preferably the image 17 is heated section by section as the master 3 rotates on a cylinder, then copy sheets are fed through a nip between the cylinder and an impression cylinder. The image 17 may comprise a material of higher melting point than the colouring matter, located near the master surface, so that the colouring matter remains attached to the master surface during heating.
Patent GB-770668-A (GB)
Title: Improvements relating to stack pipes
IPC: E04D13/08
Filed: 1954-05-13
Abstract: 770,668. Drainpipes. BENDZ, Ltd., and ACKERMAN, S. May 13, 1955 [May 13, 1954], No. 13989/54. Class 33. [Also in Group XXVIII] Stack pipes for buildings comprise a number of sections 10 each provided with a socket 13 having an internal, circumferential groove 14 accommodating a rubber ring 15 to form a seal with an upper section slidingly engaged in the socket. The sections are formed with flanged openings with each of which are telescopically engaged tubular members 12 for the connection of waste pipes 17, Fig. 4, which abut the flanges 11 and are also sealed by rubber rings 20 located in grooves 19 of the members. Alternatively, the members are formed as sockets as shown in Fig. 3 and fit within the flanged openings. Soil pipes 21, Fig. 2, are connected to the stack pipe by the use of tubular members 12 as shown in Fig. 4 the sealing ring 20 and groove 19 being dispensed. with and the pipes 21 being brazed in the members. There is a vent pipe 25 constructed in a similar manner to that of the stack pipe, the soil pipes 21 being connected thereto by branch pipes 29.
Patent GB-528643-A (GB)
Title: Improvements in and relating to regulator levers and bearings for clock-work balances
IPC: G04B31/008
Filed: 1939-05-11
Abstract: 528,643. Clockwork mechanism. COLOMB, H., and TAVANNES WATCH CO. SOC. ANON. May 11, 1939, No. 14047. Convention date, May 12, 1938. [Class 139] [Also in Group XXXIV] The regulating lever 4, Fig. 3, for a clockwork balance is assembled with a socket 5 which is rotatably mounted in the balance bridge 1 with substantial friction, and coaxially mounted in the socket 5 are the pivot and cap jewels 14, 15 for the balance staff 3, at least one of these jewels being detachably fixed in position so that it may be removed without disturbing the regulating lever 4. A U-shaped spring 8, Figs. 3 and 4, is housed in a recess 9 of the bridge 1 and engages a peripheral groove 6 of the socket so that the latter is pressed downwards to create friction between lever 4 and bridge 1. A washer 10 between the parts 4 and 1 prevents wear of the bridge 1. The jewels are mounted as shown and are kept in position by an annulus 18 and a leaf spring 19 which is held at one end by a screw 21 and at the other, slotted, end 22 by a screw 24. Parts 4 and 5 are mounted rigidly together. Various modifications are described and shown of the shape and section of spring 8, and of the way in which the jewels are mounted in the socket 5. In Fig. 15 the cap jewel is pressed down by a floating ring and blade spring 58 to withstand axial shock. In Fig. 18, the cap jewel rests freely on the pivot-jewel ring 68 to give free lateral play. Devices are also described to vary the friction between lever 4 and bridge 1.
Patent GB-608741-A (GB)
Title: Disintegrating unit for sewage or the like
IPC: F04D7/04
Filed: 1946-05-09
Abstract: 608,741. Centrifugal pumps. PIERCY, W. N. W., and ADAMS-HYDRAULICS, Ltd. May'9, 1946, No. 14092. [Class 110 (i)] In a sewage pump a perforated or slotted plate 8, lying in a plane at right angles to the axis of the impeller 3, is provided, between the impeller and the outlet, one or more cutting blades 9 being associated with the outlet side of the impeller vanes and so disposed that on rotation of the impeller 3 these blades 9 rotate in a plane immediately adjacent to that of the plate 8 whereby a cutting action occurs between the blades 9 and the slots or perforations. The edges of the slots in the plate 8 may be fitted with removable cutter blades and a series of small expeller blades 16 may be provided on the upper surface of the impeller hub to prevent solids from gaining access to the pump stuffing- box 6.