baber/WOPTO huggingface dataset:
Patent GB-384270-A (GB)
Title: Improvements in or relating to diaphragms for loud speakers, microphones, and the lik
IPC: H04R7/12
Filed: 1931-02-18
Abstract: 384,270. Diaphragms. LINDGREN, G., 32, Gamla Brogatan, Stockholm. Feb. 18, 1931, No. 5181. Convention date, Sept. 5, 1930. Void [Published under Sect. 91 of the Acts]. [Class 40 (iv).] A diaphragm for loud-speakers, microphones, &c. comprises a number of parts shaped as pyramids or truncated pyramids or cones or truncated cones connected together by their, edges. Fig. 1 shows a diaphragm comprising an inlet cone 1, transmission truncated cone 2. and one or more truncated outlet cones 3, 4. The cone 1 is made of thick stiff material, such as cardboard, the cone 2 of paper, silk or cloth, which may be impregnated with celluloid dissolved in acetone, and the cone or cones 3, 4 of a thick stiff material such as cardboard free from wood, grey paper &c. Fig. 2 shows an alternative arrangement of the cones. The cone 1 may have its apex directly connected to the diaphragm of the actuating unit 5, as shown in Fig. 1, or, as shown in Fig. 2, the apex may bear with pressure in a recess 13 in the diaphragm 6 and be filled with a plug of wood, metal or celluloid dissolved in acetone. In this latter arrangement, resilient pads 11 are disposed between the outer edge of cone 3 and a cross-bar 10 in the front of the box 9 or alternatively Fig. 5 (not shown), a circular U-shaped member may be provided on the cross-bar, the U being closed by a ribbon of soft cloth, chamois leather &c. against which the outer edge of the cone 3 bears. When the cone 1 is directly connected to the diaphragm 6, the arrangement shown in Fig. 6 may be employed comprising a piece of soft cloth &c. 16 stretched over the front of cone 3 and having plates 19 disposed on opposite sides thereof connected together by a pin 17 having a threaded part extending through the cross-bar 18 so that rotation of the pin adjusts the diaphragm in an axial direction. Alternatively, the diaphragm may be supported by the cone 4, by both cones 3, 4 or by flexible means between the edge 12 and box 9. Additional inlet, transmission and/or outlet cones or pyramids may be provided if desired, such for example as illustrated in Fig. 4 (not shown).
Patent GB-686215-A (GB)
Title: Storage and dispensing apparatus
Inventor: SMITH ERNEST FRED
IPC: B62B3/06
Filed: 1951-03-05
Abstract: 686,215. Balancing storing apparatus. AMERICAN MACHINE & FOUNDRY CO. March 5, 1951. No. 5280/51. Class 78 (ii). A material storing and dispensing apparatus comprises a cantilever material supporting platform maintained at predetermined level by means of springs. The trays T are supported on a pair of chains 22, 24 passing round upper and lower sprockets and connected to a plate 20. The floating shaft 90 of the lower sprockets is retained by springs 88 secured at their lower ends by hooks 92 on the base 10. The trays comprise a supporting shelf 86 resting on an angle plate 78 braced by brackets 84. The trays are supported on studs 74, 76 spaced along the chains, the plate 78 having dependent hooks 80 and 82 engaging the studs. The lower ends of the chains are connected to carriers 52, 54 carrying rollers engaging the flange of the uprights. The calibrated tension springs are adjusted to allow the top loaded tray to be always at a predetermined height as the load thereon is vaned. In an alternate form which allows trays to remain after being emptied, two uprights with cross members hook on to the lowest hooks of the chains and have hooks for supporting the trays. In another means for maintaining the top tray at a predetermined height, the springs are unhooked, and pawls 34, 35, mounted above sprocket 32 are released to engage the sprocket and so hold the chain and hence the tray in the required position. Specifications 530,590 and 610,338 are referred to.
Patent GB-410446-A (GB)
Title: Improvements in or relating to bipolar incandescent ignition plugs
IPC: H01T13/04
Filed: 1934-02-17
Abstract: 410,446. Couplings. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart,Germany Feb. 17, 1934, No. 5283. Convention date, March 23, 1933. [Class 38 (i).] The leads f, g of an incandescent wire ignition plug are separated by a tube h of insulating material. Metal caps m, k, are inturned over a beading at each end of the tube, the cap m being loose and enclosing a spring washer n.
Patent GB-1126857-A (GB)
Title: A method of manufacturing foamed sheets of polyolefin composition
IPC: B29C44/56
Filed: 1967-02-03
Abstract: 1,126,857. Heating device for foaming polyolefin sheets. FURUKAWA DENKI KOGYO K.K. 3 Feb., 1967 [5 Feb., 1966], No. 5307/67. Heading F4U. [Also in Divisions B5 and C3] Sheets of polyolefin composition comprising polyolefin, organic peroxide and foming agent are foamed by heating the sheet either by heat radiation from nichrome wires or infra-red ray lamps, or by natural or forced flow of hot air. Preferably, foaming is effected by heating both sides of the sheet at substantialy the same rate while it is supported on an endless belt conveyer 2 provided with a large number of fine holes. The surface of the belt conveyer should be smooth to ensure uniform expansion of the sheet thereon. Each hole in the belt is tapered so that the cross-sectional area increases gradually as the opening extends toward the upper surface of the belt thus facilitating separation of the foamed sheet from the belt at the end of the heat treatment. The belt 2 conveys the sheet 6 through a furnace enclosed by housing walls and provided with hot air circulating ducts 3, partitions 4, and slit nozzles 5 for blowing air. Thumbscrews 7 fasten the nozzles to the heating device. During the transit, hot air is delivered to the sheet directly, rapidly and at a substantially uniform rate to such a temperature e.g. 180-300‹ C., that the organic peroxide and the foaming agent are decomposed simultaneously. Hot air from the slit nozzles 5 is blown preferably at a velocity of 5-20 m/sec. so as to form opposing air currents 8. There is a larger clearance d 1  between the upper nozzles and the sheet than the corresponding clearance d 2  between the lower nozzle and the sheet. The air velocity at the lower nozzle may be greater than that at the upper nozzle to assist easy separation of the foamed sheet from the belt. Further the width of each slit nozzle may preferably be made narrower in the centre than at each end in order to heat the centre and edges of the sheet uniformly. The furnace can be divided into two or more zones whereby the temperature and hot air blowing rate can be varied. The endless conveyer belt may be made of metal screen having a range of 5-200 mesh per inch (Tyler Std.) or metal plate. Stainless steel, galvanized iron, aluminium, alloys such as brass, organic substances such as P.T.F.E. fibres, inorganic substances such as glass fibres, silicon oil, P.T.F.E. emulsion or powder particle of mica or talc are suitable materials for constructing the belt.
Patent GB-415402-A (GB)
Title: Improvements in or relating to fastener forming and inserting machines
IPC: A43D69/04
Filed: 1933-02-22
Abstract: 415,402. Slugging. BRITISH UNITED SHOE MACHINERY CO., Ltd., LANE, H., and GIBSON, G. W., Belgrave Road, Leicester. Feb. 22, 1933, No. 5367. [Class 89 (iii).] Relates to rotary-shear slugging machines and comprises improvements in means for discontinuing the wire feed if a slug or a broken piece of the driver jams in the rotary shearing member, in means for retaining a cut-off slug in the shearing member during rotation thereof, and in the construction of the abutment plate against which a workpiece is held during slugging. The improvements are described as applied to the machine described in Specification 227,486, [Class 89 (iii)]. The presser roll 11 is pressed towards the feed roll 15, with which it co-operates to feed the wire, by a spring 13 surrounding a rod 1, to which the roll 11 is latched by a hooked latch 3. An arm 17 connected to the latch 3 by a pin and slot has a block 19 mounted to slide in guides in the workabutment plate 21. If a slug projects from the rotary shear member 29 as the latter returns to slug receiving position, it engages the block 19 and moves it to release the latch 3 from the spring 13, so that the wire feed is stopped. The block 19 is arranged to lie flush with the under surface of the plate 21, and to reduce the length of the slot 23 in which the awl and driver operate, so that a small workpiece is less liable to be damaged by being forced into or marked by the slot. The upper surface 37 of the block 19 is curved as shown and underlies the path of movement of the member 29. Thus, the surface 37 prevents a cut-off slug from being thrown out of the member 29 during rotation thereof. A plate, not shown, is arranged to lie in rear of the member 29 when in slug-receiving position, to prevent ejection of a. slug from the member as the result of the shearing action. The same result could be achieved by the provision of a spring plunger at the rear end of the member 29. To facilitate the holding of small workpieces against the plate 21, the latter is strengthened at its rear end, and at its forward end is cut away and rounded and supported by a strut, not shown, the front bearing referred to as 31 in the aforementioned Specification being cut away.
Patent GB-1276816-A (GB)
Title: Device for changing inclinations of a component part of an instrument
Inventor: WEIGOLD WILFRIED
IPC: G01C17/12
Filed: 1970-02-04
Abstract: 1276816 Levelling heads CARL ZEISS JENA VEB 4 Feb 1970 5401/70 Heading G1F A device for adjusting the inclination of a component part 6 of an instrument relative to a base 3 comprises two wedges in the form of circular cylinders 4, 5 which are substantially co-axial and may be rotated relative to each other by means of handles 25, 29 thereon to adjust the inclination of the part 6, the component part 6 and the base 3 being linked together inside the cylinders by a laminar spring in the form of a cross, two opposite arms 9, 10 of which are secured to the base 3, the other two opposite arms, only one of which 12 is shown being secured to the part 6, the spring sewing to prevent relative rotation, between the base 3 and part 6 and to hold the device together. The base 3 has a screw-threaded aperture 1 for mounting on a tripod or the like and the part 6 is provided with apertures 7 for the mounting the remaining part of the instrument e.g. a geodetric instrument. Oiled rings 25, 26, 27 are fitted in grooves between the sliding faces of the device to facilitate rotation of the wedges.
Patent GB-372440-A (GB)
Title: Improvements in and relating to chairs, settees and the like
IPC: A47C3/025
Filed: 1931-02-20
Abstract: 372,440. Spring-mounted seats. ALEXANDER & CO., Ltd., H. & A. G. and ALEXANDER, A. G., Steam Chair Factory, Eastfield, Rutherglen, Lanarkshire. Feb. 20, 1931, No. 5408. [Class 52 (ii).] A seat is provided with an underframe a which supports the upholstery springs h of tne seating surface, the upper seat framing b being independently and resiliently supported by helical springs f, g arranged under its front and side rails only, and intermediately of the lengths of the said rails.
Patent GB-562837-A (GB)
Title: Improvements in mitering blocks
IPC: B27G5/02
Filed: 1943-04-05
Abstract: 562,837. Mitering wood. BRIDGES, L. April 5, 1943, No. 5416. [Class 145 (i)] A mitering block comprises two jaws, one of which is movable to and from the other, an upper part which is slidable transverselv on the lower part of each jaw, slotted saw guides which are pivoted on each upper jaw, and screws or bolts for locking the movable parts in the required positions. The fixed jaw 2 forms part of the base 1 of the device which is provided with slots 4, 4', in which the movable jaw 3 slides. The upper portion 5, 5<1> of each jaw is formed with a tongue 6, 6' by which it slides in a groove 7, 7<1> in the lower portion, screws 15, 15<1> being provided to enable the sliding portions to be clamped in any required position. The saw guides consist of cylindrical members 9, 91 housed in the jaw and provided with a spigot that enables it to be rotated about a vertical axis. Each member 9, 9' is provided with a slot 11, 11<1> to receive the saw, and with a pointer 13, 13' that moves over a graduated scale 14, 14<1>. Screws 12, 12<1> enable the guides to be clamped in any position of adjustment. In use, the material to be cut is mounted in a wooden block 18 which is held between the jaws, and the guides 9, 9' are turned to the required angle and locked in position. The jaw portions are then moved until the saw slots are in line with one another and are then locked in position by the screws 15, 15'.
Patent GB-771973-A (GB)
Title: Improvements relating to powered cycles
IPC: B62K11/08
Filed: 1955-02-23
Abstract: 771,973. Motor-cycle frames. ZUNDAPPWERKE GES. Feb. 23, 1955 [April 17, 1954], No. 5445/55. Classes 136(1) and 136(3). In a powered cycle the frame extends downwardly at an incline along a line 2 from the steering head 1, then runs approximately horizontally in the region of the engine suspension and terminates as shown by the line 3<SP>1</SP> in an upwardly directed rear part for the purpose of mounting body work and the driver's seat 4, the space 6 between the seat and the steering head being constructed as a luggage carrier and the fuel tank being provided in the region 9<SP>1</SP> beneath the driver's seat or pillion seat. The luggage container 6 is closed by a flap 7 connected to the container by a hinge 9 so that it can be rockably lifted to open. A snap fastener 8 is provided to retain the flap 7 in the closed position.
Patent GB-271567-A (GB)
Title: Improvements in connection with stills and the like
IPC: B01D3/02
Filed: 1926-02-26
Abstract: 271,567. English, W. E., and Hannan, J. R. Feb. 26, 1926. Field-tube apparatus.-In stills having heating means comprising a number of " Field " tubes 3 which project through the still casing 1, the supply and discharge pipes 7, 9 are each provided with a valve 11, 12 so that any tube can be isolated and tested for leakage by opening a testcock 13.
Patent GB-172246-A (GB)
Title: Improved magnetic control mechanism for liquid raising apparatus
IPC: F02M37/02
Filed: 1921-02-17
Abstract: 172,246. Schulze, O. Feb. 17, 1921. Vacuum apparaatvs. - In vacuum apparatus for raising liquid, the suction valve 4 is the armature of a magnet 3 surrounding the suction port 2, and is carried on a tube 5 sliding on a guide rod 6 and acting as a guide for a float 7. When the float lifts the valve 4 to close the port 2, the valve is held by the magnet until the float in its descent rests on the flange 8 of the tube 5. An extension of the valve 4 opens the atmospheric valve 9 when the valve 4 is raised to close the port 2.
Patent GB-727845-A (GB)
Title: Improvements in or relating to fire-proof doors
Inventor: MORRIS NEIL BALFOUR
IPC: E06B5/16
Filed: 1953-03-02
Abstract: 727,845. Fireproof doors. MORRIS & CO., Ltd., H. March 2, 1954 [March 2, 1953], No. 5706/53. Class 20 (3). A fireproof door comprised e.g. of asbestos, or of a mixture including asbestos impregnated with a non-combustible plastic with a skin of plastic, or a veneer incorporating plastic, bonded to the body of the door frame, is provided on at least each vertical edge face with a strip of metal a, or e, the strip a having recesses to receive the movable leaves b of hinge fittings and the opposite strip e having a mortise f cut therein for the reception of a lock. The leaves b are secured to the door frame by screws c which pass through holes in the leaves b and screw into plugs d fitted into sockets perpendicular to the plane of the door. The look is secured by pins engaging plugs similar to the plugs d.
Patent GB-139618-A (GB)
Title: Improvements in or relating to colour printing and stencilling apparatus
IPC: B41F3/42
Filed: 1919-03-07
Abstract: 139,618. Falla, E. J. March 7, 1919. Stencilling. - A multicolour stencilling-machine is constructed with an inclined bed to support the sheets to be stencilled, a frame F divided into compartments each fitted with a stencil 0 arranged in front of the bed, and a movable platform H arranged in front of the frame and carrying a series of sprayers J. After each stencilling operation, the frame F is moved forward to release the sheets, which are then advanced along the bed, and the sprayer platform is raised and the air supply cut off by mechanism operated by cams and cranks from a common shaft, the continued rotation of which causes the frame F to close on the sheets, returns the feed mechanism, and admits compressed air to the sprayers whilst these are lowered, and at the same time oscillates the nozzles so that they spray the whole of the stencil. The frame F is carried by levers on spindles mounted on the bed, and is moved towards and away from the bed by rocking the spindles through a rod F<4> and bell-crank F<5> from a cam D on the main shaft E. The sheets are advanced between operations by spring pawls pivoted to a bar A<1> reciprocated by a rod C<1> from a pin on the cam D, the pawls working through slots in the table and engaging the rear edge of a sheet on the forward motion and riding on the back of the next sheet on their return. The sprayer platform H is raised along fixed guides G<1>, whilst the sheets are being advanced by links H<2> connected to pivoted weighted levers which are rocked by links K<1> from a rock-lever K oscillated bv a crank-disk L on the shaft E, the compressed-air valves being closed, during this movement, through an adjustable cam. The continued rotation of the shaft E then opens the air valves, and the sprayer platform descends with the sprayers in action; the nozzles are oscillated, during this movement, by links G<5> from an arm geared by a pawl with a ratchetwheel G<3> on a spindle carrying a pinion gearing with a rack on the guide G<1>. According to the Provisional Specification, the stencil frame may be supported by rollers resting on sliding rods formed with depressions, into which the rollers descend to bring the frame against the bed.
Patent GB-1503163-A (GB)
Title: Diffusion of gas in a liquid by bubble shearing
IPC: C02F3/20
Filed: 1975-02-11
Abstract: 1503163 Dispersion of gas in a liquid FMC CORP 11 Feb 1975 [11 Feb 1974] 5779/75 Heading BIC An apparatus for dispersing a gas in a liquid comprises a slot 40, Fig. 4A, through which the liquid flows, which is partly defined by a gas transmitting body 42 having a plurality of gas transmitting passages 66 terminating in capillary openings 65 having a diameter not greater than 100 microns; the slot being defined as one in which, when no gas is flowing through the passages and water at 20C flows through the slot with a mean entrance velocity of at least 10 ft/sec, laminar flow is established parallel to the gas diffusing surface 68, including a partially developed boundary layer 54 adjacent the surface and a free stream 56 thereabove. Bubbles as small as 10 microns diameter may be produced with a median diameter of 25-30 microns. Typically the slot may have a width of 0.04 inch and length of 0.08 inch; the width may be adjustable and for high viscosity liquids such as sewage may be up to 0.5 inch. It may have a rounded entrance 150, Fig. 12, or be annular, Fig. 13. The gas pressure may be of the order of 20-30 1b/sq. inch. Fig. 11 shows an installation 110 for the oxygenation of a lake 114 employing a plurality of diffuser units 118 having slots 120. The water is circulated by a pump 133 through chambers 149, Fig. 12 and out through the slots 120, while oxygen is supplied from a main 124 to plenums 160 and capillaries 158. The capillaries may be bundles of glass fibre tubes having an internal diameter of 3-30 microns with a median of 8 microns, embedded in a sealing material such as epoxy resin, but the gas diffusing body may also be made by drilling, or of porous sintered metal, ceramic, metal or plastic screen or other mesh, woven material or porous sheet or membrane, or by the interstices between solid rods of glass, plastics or metal. Gas turbulence is minimized by the capillaries having a length/ diameter ratio of at least 10:1. Methods of fabricating a diffuser unit using glass fibre capillary strands are described with reference to Figs. 17-24 (not shown).
Patent GB-499157-A (GB)
Title: Improvements in starting arrangements for fuel injection internal combustion engines
IPC: F02M51/00
Filed: 1938-02-24
Abstract: 499,157. Starting prime movers. BOSCH GES., R. Feb. 24, 1938, No. 5837. Convention date, March 10, 1937. Addition to 437,999. [Class 38 (iv)] [Also in Groups XXVII, XXVI, and XXVIII] In a fuel-injection engine having an electric starter and a fuel pump which can be adjusted to inject a greater amount of fuel than that injected for full-load running, a stop 13 for normally limiting the movement of a pumpcontrol rod k is displaced at starting by means of an electromagnet 2 excited in dependence on the switching on of the engine starter c. As shown in Figs. 1 and 2, the stop 13 is adjustably secured to the armature 6 of the electromagnet, which is normally held in the position shown by a spring 11. The electromagnet is connected by a conductor 3 to the starter switch e. The rod k terminates in a piston u in a cylinder t connected by a pipe v to a venturi in the engine intake pipe w, which is provided with a pedalactuated throttle y. A spring n in the cylinder t tends to hold the rod k in engagement with the stop 13. On switching on the starter, the armature 6 moves to the left, until a conical part 6b abuts against the recessed bush 10, allowing the rod k to be moved further to the left by the spring n to allow the maximum injection of fuel for starting. In a modification, the electromagnet is connected to the circuit of the starting motor through a switch closed and opened by a lever in dependence on the movement of the starter pinion into and out of engagement with the engine flywheel. In a further modification, Fig. 4, the control rod k carries a hollow bush 15 bored to receive radial bolts 16 drawn together by a spring 18 and carrying studs 16a engaging the bush externally. Bevelled faces on the bolts 16 engage the coned end of the electromagnet armature 6, so that axial movement of the rod k causes the bolts 16 to ride outwards into engagement with projections 19 on the sleeve 1 connecting the electromagnet casing 4 to the pump casing g and serving to limit the axial movement of the control rod. When the armature 6 is moved to the left on starting, the bolts 16 are free to move past the projections 19 before riding outwards on the coned end of the armature 6.
Patent GB-124822-A (GB)
Title: Improvements in Controlling for Aeroplane Flying Machines.
IPC: B64C13/00
Filed: 1916-04-25
Abstract: 124,822. Beardmore & Co., W., and Richards, G. T. April 25, 1916 Steering and balancing; propelling.-In aeroplanes in which the turning effect due to inequalities in the thrusts of non-central engines and propellers is automatically counteracted by actuation of a vertical rudder, the engines are provided with governors connected to the valve of a compressed-air or other motor controlling the rudder or tailfin In the form shown, engines 3, 4, Fig. 1, are provided with governors 5, 6 connected to levers 7, 9, which are so arranged that similar movements of the governors produce equal and opposite movements of the inner ends of the levers. These inner ends of the levers are connected by a chain 14 passing over a pulley 13, which is connected by a spring- controlled rod 12 to the valve 11 of a compressed-air motor arranged to operate a tail-fin 1 pivoted at its rear edge 2. The rod 12 is connected by a lever 16, Fig. 3, to a rack 18 engaging a pinion 21, which also engages a lower rack 19 and is connected by a rod 22 to the motor valve. Thus, when the engines are acting unequally, the motor 11 is started to turn the fin in the required direction by means of worm gearing 23, 24 actuating a screw-threaded shaft 25 engaging a nut on the fin 1. The movement of the fin is arranged to return the valve for stopping the motor 11, by means of connexions 26, 27, 29, Fig. 1, to the lower rack 19.