baber/WOPTO huggingface dataset:
Patent GB-398250-A (GB)
Title: Improvements in optical systems for the measurement of angles
IPC: G01B11/26
Filed: 1927-12-21
Abstract: 398,250. Optical systems. BOOTH, L. B., Royal Aircraft Establishment, South Farnborough, Hampshire. Dec. 21, 1927, No. 34606. [Class 97 (i).] An optical system by which the angular distance between two objects or between different images of the same object can be measured comprises a telescope system having a magnification slightly different from unity. The system may comprise two lenses, Fig. 1, separated by an air space, the surfaces r1, r4 being plane, the surfaces r2, r3 having slightly differing curvatures and the lenses having the same refractive index. The spacing is such that the combination acts as a telescope, i.e. rays incident parallel to the axis of the system emerge also parallel to the axis. Alternatively a simple lens may be used having surfaces of slightly differing curvatures, and a thickness so chosen that it acts as a telescope. In another form the system consists of two simple lenses cemented together, the radii of the external surfaces being numerically equal and the refractive indices of the components being slightly different. To measure the small angular separation of two distant objects the low power system E is mounted in front of the objective D of a telescope A, Fig. 4, in such a way that it can be rotated about a vertical axis 0. With the axis of the system E set to coincide with that of the telescope, the telescope is trained until the image of one of the distant objects coincides with the cross-wires. The system E is then turned about the axis O until the other object is on the cross-wires. A pointer F attached to the system E indicates the desired angle on a scale G. The system according to the invention may also be used as the means for obtaining coincidence of the images in a single-observer range-finder. Systems C<1>, D<1> of the kind described are provided in conjunction with the objectives B<1>, Fig. 5, of the rangefinder, one, C<1>, being fixed while the other, D<1>, can be rotated about a vertical axis O to obtain coincidence. The rotation of the member D<1> is effected by a rod K displaceable along the base and engaging by its outer end a rod El carried by the member D<1>. Both members C<1>, D<1> may be made rotatable and their motions may be coupled mechanically so that any desired degree of sensitivity can be obtained. Instead of using the low power telescope C<1>, the second objective B<1> may have its focal length made equal to that of the combination of the telescope D<1> and its objective.
Patent GB-1055431-A (GB)
Title: Improvements in or relating to forming lined tunnels or shafts
IPC: E21D11/10
Filed: 1963-09-02
Abstract: 1,055,431. Tunnelling. A. MURON, M. MURON and W. MURON. Sept. 2, 1963. No. 34643/63. Heading E1F. A tunnel or shaft is cut by a device (49) housed in a sleeve casing 1, (Fig. 1, not shown), a continuous lining being formed as the machine advances, by injecting material from inside sleeve 1. Fig. 2 shows how casing 1 has portions 2, 3, 4 of progressively reduced diameter, separated by annular steps 2a, 3a, 4a through which respectively bitumen 11, concrete 13 and a thermoplastic 5 are injected to form coaxial layers. The thermoplastic 5 is colophony in paraffin, and serves to support the concrete 13 until set, being subsequently stripped for re-use. Step 3a and portion 3 have respective apertures 57, 58 through which longitudinal reinforcing wires 17 and rods (18) for reinforcing concrete 13 (Fig. 3 not shown) are fed. A tractor (20) with rubber tracks (14) rides on layer 5, having means (41), (42) for steering casing 1, and carries various pumps, tanks and heated conduits for the different lining materials, drums (7) of wire 17, debris removal transporter (19) supplied by worm (26) in pipe (29), a pump (22) supplying lubricant via conduit 23 to the inner face of layer 5 and a pump (9) supplying lubricant to apertures (32) to assist the progress of casing 1. The casing I is propelled by a combination of tracks (14), screws 64 which ensage the unlined tunnel, and the pressure applied in injecting the lining materials. The cutting head (Fig. 5, now shown) mounts roller cutters, pneumatic chisels (Figs. 5..9, not shown) and retractible undercutting knives (48), and is oscillated through 120 degrees by a drive (Fig. 11 not shown) operated from behind a shield (8). The drive comprises hydraulic cylinders (51) actuating star (53) on hollow shaft (45) carrying cutting head (49). The shaft encloses rods (52) which retract knives (48) and thereby assist steering. In boring vertical shafts, head (49) is replaced by a conical cutter (Fig. 12 not shown), the tractor is dispensed with. In boring sand or mud, a cutting head having flat propeller-like blades is used.
Patent GB-400008-A (GB)
Title: Improvements in and relating to closures for cans and like containers
IPC: B65D43/02
Filed: 1932-12-07
Abstract: 400,008. Cans &c. SAND, L. A., 88, Nieuwe Parklaan, Scheveningen, The Hague. Dec. 7, 1932, No. 34653. Convention date, Nov. 3. [Classes 66 and 125 (iii).] A can, glass jar, or other container having an outwardly beaded rim 2 is provided with a sheet metal cover 3, the edge of which is curled over to embrace the rim, then directed outwardly, affording a constriction 6, and finally directed downwardly to form a leading or guiding part 4 of substantially the same diameter as the rim, the lower edge of which part is curled outwardly to meet the lower edge of the outward part of the constriction 6, forming a reinforcement 7. In the construction shown in Fig. 4, an indiarubber ring or other packing may be disposed between the rim and the cover.
Patent GB-1156332-A (GB)
Title: Improvements in or relating to Road Forms and Fixings therefor
Inventor: BALLARD FRANK GORDON RAYMONT
IPC: E01C19/50
Filed: 1965-08-13
Abstract: 1,156,332. Road forms. JOHN LAING RESEARCH & DEVELOPMENT Ltd. 11 Aug., 1966 [13 Aug., 19651, No. 34679/65. Headings E1G and E1S. A form, for the laying of concrete roadways, having vertical 1 and horizontal 2 flanges has slots 8 at the junction of the flanges to receive transverse fixing strips 7. The strips 7 are hooked at 11 to abut the concrete haunch and are locked to the form by wedges driven through holes 13 in stake housings 5. The form may be formed with a flanged head 3 and a second flange 4 on the horizontal section. The housing 5 and flange 4 are slotted such that the strip 7 may be used to locate the form in either direction; these slots may be elongated as at 14 to allow adjustment and removal of the form.
Patent GB-893305-A (GB)
Title: A mixer, particularly a concrete mixer constructed as a tub lift
IPC: B28C5/08
Filed: 1960-10-11
Abstract: 893,305. Concrete mixers. DE AUGUST, J. W. Oct. 11, 1960, No. 34753/60. Class 86. [Also in Group XXX] A concrete mixer has a mixing drum 1 movable on rails 3 between a lower, charging position and an upper, discharging position; elevation of the drum 1 and agitation of the mix being both effected by a cable 12 embracing a pulley 11 attached to the shaft 7 which carries the mixing means (not depicted). The ends of the cable 12 are attached to winding drums 15, 16 fixed on shafts 13, 14 respectively the shaft 13 being chain driven by the reversible motor 18 and having a gear 19 engaging a gear 20 which drives shaft 16 in one direction only, as by a free-wheel. The mixing drum is lowered by unwinding cable from drum 15, the other end of the cable being simultaneously wound more slowly on to drum 16. When motor 18 is reversed, the cable on drum 16 is first wound off through action of the free-wheel, providing a mixing period while the drum 1 remains in the charging position; mixing continues during elevation of the drum. The length of cable on drum 16 and hence the initial mixing period may be adjusted by altering the ratio of the gears 19, 20. The motor 18 operates at 1400 r.p.m. when lifting and mixing, and 2800 r.p.m. when lowering; limit switches at the top and bottom of the rails 3 may reverse the motor and thus make the mixing cycle automatic. The mixing drum 1 has a charging opening covered by a grating 9, and a discharging extension 10, and discharges into a shoot 21 which may be arranged to hold the batch temporarily by means of a sliding closure. Discharge is accelerated by rotation of the mixing means. The mixer may be tilted from the vertical to the horizontal position for transport on the road wheels 6. The mixer may be loaded by a truck 25, Fig. 3, having adjustable internal partitions 29 for proportioning the materials and wheels 26, 27 engaging an inclined track 24. At the top of the track the truck engages stops (not depicted) tilts and discharges through a hinged door 28; as the mixing drum rises it strikes the truck 25 which then returns by gravity down the track. The truck may alternatively be associated with weighing means.
Patent GB-984809-A (GB)
Title: Dock fender
IPC: E02B3/26
Filed: 1962-09-12
Abstract: 984,809. Fenders. LORD MANUFACTURING CO. Sept. 12, 1962 [Sept. 22, 1961], No. 34809/62. Heading B7S. A fender 4 (Fig. 1 plan, Fig. 2 side view) supported by piling 5 is spaced in front of a dock 1 by mountings each comprising a body 6 of elastomer having end plates 7, 8 attached to the fender and the dock and its underside 10 arched upward, the dimensions of the body being such that it buckles upwardly under load, as at 11.
Patent GB-805133-A (GB)
Title: Improvements in or relating to medical treatment chambers
IPC: A61G11/00
Filed: 1955-12-05
Abstract: 805,133. Treatment chambers. HIGGS, G. W. Dec. 5, 1956 [Dec. 5, 1955], No. 34825/55. Class 81 (2). A treatment chamber includes a heating and humidifying unit comprising a water tank 44, a heater 42 externally of the water tank, a valvecontrolled outlet 46 from the top of the tank and an air inlet passage 45 extending from the bottom of the tank to a point above the water level in the tank. A sheet-metal or thermoplastic body 10 containing the heating and humidifying unit is supported by a trolley 11 and has a shaft 24 which supports a tray 28 for the patient. The body 10 is covered by a canopy 12 made of toughened glass or thermoplastic material, the canopy 12 having a sloping roof with a hinged movable part 15 and hand openings 17 controlled by flexible sleeves 18. The inclination of the tray 28 is adjustable, one end of a tray-supporting frame 27 being mounted on links 34, 35 threaded on a shaft 29 which is rotatable by a handle 67. Air entering the body 10 through a gauze filter 54 in a tubular opening 53 is heated and humidified, by passing upwardly through tubes 45 into the water tank 44, and enters the treatment chamber through the outlet 46 controlled by a butterfly valve 47. A thermostatically-controlled heater 42 is located in a chamber 41 adjacent the water tank. Heated air from the chamber 41 flows via duct to an opening 59 and is directed against the canopy wall to prevent misting. The canopy 12 has air openings 19, 20. Oxygen may be introduced into the treatment chamber through a connection 66. An independent battery-energized circuit including a thermostatic device is completed to light a lamp 47 if the temperature within the treatment chamber falls below a predetermined minimum. A humidity meter 23 and a thermometer are located on the canopy 12. According to the Provisional Specification, the heater is located beneath the water tank which has a domed top.
Patent GB-282776-A (GB)
Title: Improvements in process of preparing artificial staple fibre for spinning
IPC: D06M13/148
Filed: 1927-12-23
Abstract: 282,776. I. G. Farbenindustrie Akt.- Ges., (Assignees of Thoma, M. F.). Dec. 27, 1926, [Convention date]. Fibres, lubricating; fibres, crimping; fibres. treating.-Staple fibres of artificial silk are prepared for spinning by treatment in a liquor comprising ingredients for softening, crinkling, increasing hygroscopicity, and improving the feel. A preferred mixture contains, in 100 gallons of water, 3 galls. of glycerine, 1 gall. soda, ¢ gall. soft soap, ¢ gall. turpentine oil, and 1 gall. of oil soap flakes. The artificial staple fibre is soaked in it for a considerable period at a moderately warm temperature. As alternate softening agents may be used, sulphonated castor oil, sulphonated tallow, or sulphonated olive oil, Red oil, sulphonated castor oil and carbon tetrachloride, soap and benzol, or trichlorethene. Lustre is produced by turpentine oil, ethylene hydrochloride, soap and carbon tetrachloride, or sulphonated castor oil and carbon tetrachloride; while the chlorides of mag. nesium, calcium, or zinc, or turpentine oil may be used to hold moisture in the fibre. Formic or acetic acid or oil soap can be used to improve the feel, and soda or soda ash to effect the crinkling.
Patent GB-407478-A (GB)
Title: Improvements in or relating to pistons for internal combustion engines
IPC: F02F3/04
Filed: 1932-12-09
Abstract: 407,478. Pistons. WAGNER, K. F., 86, Obere Birkenwald-Strasse, Stuttgart, Germany.-(also assignee of Klumpp, J.) Dec. 9, 1932, Nos. 34929, 34930, and 34931. Convention dates, Dec. 11, 1931, Dec. 24, 1931, and Nov. 17, 1932. [Class 122 (i).] To avoid formation of interstices on cooling between light metal pistons and steel rings g, h carried thereby, the latter are slotted or divided at o and cast in the piston or pressed into grooves therein, the ends or slotted portions of the ring being subsequently welded together. The skirt is made resilient by four longitudinal recesses e the walls of which may be slit at k. These recesses are covered by projections t on the rings. The ring h may extend below the lower edge of the skirt, or when embedded therein, may be provided with longitudinal extensions on the maximum thrust faces. The ring g when embedded in the skirt may have holes u, Fig. 6, for the passage of ribs connecting the head and skirt.
Patent GB-1094502-A (GB)
Title: Tube-like structure for use in making bags and method of forming such a tube like structure
IPC: B32B27/00
Filed: 1965-08-17
Abstract: 1,094,502. Laminates. ARNOLD CELLOPHANE CORPORATION. Aug. 17, 1965 [Aug. 25, 1964], No. 35133/65. Heading B5N. In a method of making a multi - ply film structure from a first thermoplastic web W1 and a second web W2 of different material and narrower than the first web, the webs are bonded together with a longitudinal edge portion of the web W1 extending beyond the corresponding longitudinal edge of the web W2 and a heatsetting adhesive having a heat setting temperature similar to, but less than, the heat sealing temperature of the web W1 is applied to the exposed longitudinal edge portion of that web. As described a film structure, Fig. 6, having the webs W1, W2 bonded together by the same adhesive A which is applied to the exposed edge portion 40 of the web W1, is folded into tubular form with the web W1 nnermost, the portion 40 being folded back over the adjacent edge portion 42 of the web W2 so that when heat and pressure are applied the two opposite edge portions of the web W1 are heat-sealed to form a fin-type seal and simultaneously this seal is bonded to the edge portion 42 by heat setting of the adhesive A. In apparatus for carrying out the method, Fig. 1, a web 10 of thermoplastic material, e.g. " Cellophane " (Registered Trade Mark), polypropylene or polyethylene, which may be pretreated to receive printing, is fed via a printing station 14 to a station 16 where a heat setting adhesive A, e.g. vinyl propylene, a polybutadiene resin or epoxy resin is applied across its entire width. Alternatively two adhesives are applied, one covering that part of the web W1 which is to contact the web W2 and the other covering the part of the web which is to be left exposed. A web W2 of, e.g. " Pliofilm " (Registered Trade Mark), metal foil, paper or polyethylene is laminated to the web W1 between a heated roller 20 and a cooled pressure roller 22 covered in a resilient material. The laminated assembly S is cooled, fed to a device 28 where it is folded into a tube and sealed longitudinally, and fed to a device 30 where it is sealed transversely and cut into bag lengths. In alternative embodiments the web W1 is pretreated with printing and adhesive and is preheated before reaching the laminating rollers; the web W2 is either in the form of a single web leaving both edges of the web W1 exposed, or is in the form of two spaced parallel webs which leave one edge and a central portion of the web W1 exposed, the assembled webs then being cut longitudinally into two similar film structures.
Patent GB-927336-A (GB)
Title: Improvements in or relating to igniting devices
Inventor: HANSOM BERNARD STEPHEN
IPC: F23Q7/00
Filed: 1960-10-14
Abstract: 927,336. Glow plugs, WILKINSON SWORD Ltd. Jan. 11, 1962 [Oct. 14, 1960; Dec. 8, 1960], Nos. 35200/60 and 42221/60. Class 7(4). An igniting device comprises an electrical heating element having a terminal of the element connected to the electrical supply by a deposited metal coating. Refractory insulating cement such as that sold under the Trade Mark Brimer is painted over the heater coil 12 with the exception of the end 12b. After the ceramic coating has set a metal coating is applied over the ceramic coating and adjacent exposed end of the ceramic sleeve 14. The metal coating may be applied by flame spraying for example using material sold under the Registered Trade Mark " Stellite ". The heater element may be formed from resistance tape in spiral form to provide satisfactory heat distribution the width of the tape may be reduced with increasing radius of the spiral. An alternative to use of a tape is to use a multi-strand fine wire wound in a spiral. A silicon carbide heating element may be employed. A regulator coil may be incorporated in the glow plug to provide regulation against excessive variation of current through the heater.
Patent GB-1047687-A (GB)
Title: An improved cam mechanism
IPC: F16H53/04
Filed: 1963-09-05
Abstract: 1,047,687. Cams. FRATELLI BORLETTI S.p.A. Sept. 5, 1963 [Sept. 5, 1962], No. 35207/63. Heading F2K. A cam having an adjustable profile comprises a supporting plate 2, with a hub 1 keyed to a pin 3, and a plurality of cam sectors 8 having apertures 6, 7, Fig. 2, which engage posts 4, 5 projecting from the plate 2. The sectors 8 are locked in position by rubber rings 9, associated with the posts 5, which expand radially when compressed by a locking disc 14 which is secured in position by a nut 15. The disc 14 acts on a washer 12 integral with a pin 13 located within each post 5 and a spring 11 is disposed between the washer 12 and a washer 10 at the top of the rings 9. The plate 2 has a toothed periphery 2<SP>1</SP>. In a modification, the cam comprises sectors of 120 degree extent. The cams are arranged in stacks so that several cam profiles are available for actuating a camfollower which can be displaced from one cam to another.
Patent GB-1506516-A (GB)
Title: Method and apparatus for sorting mail
IPC: B07C7/02
Filed: 1975-08-27
Abstract: 1506516 Sorting postal mail MOUNTAIN STATES TELEPHONE & TELEGRAPH CO 27 Aug 1975 [16 Sept 1974] 35279/75 Heading B8A Mail is sorted by putting it at random in trays 12 and manually (by operators B, Fig. 2) sorting it into labelled trays 14 of a slowly rotating assembly 10. The trays 14 are pulled out and emptied and replaced as they become full and are then replaced. Mail bags 38 may be used instead of certain of the trays 14. The assembly 10 is driven by a motor 22 (Fig. 7) pivotally mounted so that a drive wheel 80 is loaded by gravity against a drive skirt 78 of the assembly. Gravity loading is augmented by a spring 114 adjustable at 136. A manual brake lever 98 presses a brake shoe 102 against a brake ring 96 carried by a skirt 94 of the assembly. An automatic brake (Fig. 5) comprises a wheel 126 frictionally driven by a skirt 82 of the assembly. Slots 124, 128, of the mounting brackets of the axle of the wheel 126, and a spring 132, result in the wheel being biased against the skirt 82 with adjustment provided by a screw 136. A brake disc 162 bearing on the wheel 126 by the action of a spring-loaded plunger 146, is formed with a humped portion 160. The plunger 146 is periodically displaced by the humped portion 160 thus increasing the braking effect. The force of the plunger 146 may be varied by putting in or removing washer-type spacers 156. The effect of the automatic brake is to hold the assembly stationary once it has been stopped; but due to the inertia of the assembly, the brake (if properly adjusted) cannot stop the assembly without additional (e.g. manual) assistance, once it is rotating.
Patent GB-282830-A (GB)
Title: Improvements in or relating to aeroplanes
IPC: B64C13/00
Filed: 1927-12-30
Abstract: 282,830. Focke-Wulf Flugzeugbau Akt.-Ges. Dec. 30, 1926, [Convention date]. Drawings to Specification. Aeroplanes; steering.-A canard type aeroplane is normally steered by a rear rudder, but when large moments are required, for example when it is desired to correct for the failure of one engine in multiengined machines, the front plane is tilted about the longitudinal axis of the machine by self locking mechanism.
Patent GB-632493-A (GB)
Title: Explosion internal combustion turbine plant and process for working the same
IPC: F02C5/12
Filed: 1947-12-31
Abstract: 632,493. Gas turbine plant. FRANCIS, E. L. M. (Inffeld, K. L. M. von). Dec. 31, 1947, No. 35435. [Class 110(iii)] In a gas turbine plant, air and blast furnace gas compressed, respectively, in multi-stage axial-flow compressors 29, 30, 31 and 27, 28 are burnt in two pairs of valved explosion chambers 4, 5, 6, 7 and delivered to turbines 1, 2 which exhaust to a dual flow drum turbine 3. The exhaust from turbine 3 is used to generate steam supplied to a steam turbine 36. The combustion chambers of a pair delivers to a separate impulse turbine with two blade rings, e.g., 8, 9 on a common shaft. One pair of impulse turbines drives the gas compressors 27, 28 and the other pair, the air compressors 29-31. Scavenging air from the combustion chambers is admitted by valves 18-21 to the nozzle chamber of the turbine 3. For starting, the pipe connections of the gas pump 28 are altered to permit it to operate as an air pump for the chambers 4, 5 and the left-hand set is then run up to speed through a fluid coupling 34 by an electric motor 33. The gas turbine 3 and steam turbine-36 drive an electric generator 35.
Patent GB-1082895-A (GB)
Title: Improvements in or relating to axles for road vehicles
Inventor: WATSON NORMAN FREDERICK
IPC: B60B11/00
Filed: 1965-08-18
Abstract: 1,082,895. Motor vehicle axles. HANDS (LETCHWORTH) Ltd. July 26, 1966 [Aug. 18, 1965], No. 35466/65. Heading B7D. In an assembly for a pair of wheels mounted upon a short axle 11, e.g. on the same side of the vehicle, the wheels are rigidly attached to the axle which is rotatably mounted in bearings 12. One wheel may be provided with a brake 25, the wheel being detachably secured to a removable hub plate 21, the other wheel being mounted on a hub plate 24 formed integrally with the axle 11. Alternatively, both wheels may be provided with brakes and mounted on removable hub plates. The bearings 12 may be mounted in a longitudinal arm 14 pivotally mounted at one end in a bracket 16 and supported at its other end by an air suspension.