baber/WOPTO huggingface dataset:
Patent GB-618899-A (GB)
Title: Improvements relating to electric contact devices applicable to electric follow-up switches
IPC: G05D3/12
Filed: 1946-09-12
Abstract: 618,899. Electric follow-up systems. PRECISION DEVELOPMENTS CO., Ltd., and ROSSZ, L. Sept. 12, 1946, No. 27383. [Class 40 (i)] The driving shaft 1 of an electric follow-up mechanism as claimed in Specification 594,258 insulatingly carries a contact gear 7 engaging, depending on its direction of rotation, offset contact gear 9 or 10 which are insulated from one another and from the shaft 2, and which drive shaft 3 by a contact gear 8 insulated therefrom. Sufficient backlash is provided between the gears to permit of their offsetting and of the breaking of contact between them. The gears 7... 10 have conducting bushes 7A ... 10A which engage brushes 7B ... 10B. A servomotor 4 is mechanically coupled to the shaft 3 by means not shown, and has a field winding 16, and a solenoid brake 12 applied by a permanently energized winding 13 and released by winding 14 or 15. If the shaft 1 is rotated in the direction A, a driving circuit is established from P via lOB, 10, 7, 7B, servomotor armature 4, 8B, 8, 9, 9B and 16 to N; also, a brake release circuit P, 10B, 10, 7, 7B, 15, 16 and N is energized to release the brake, thereby permitting the servomotor to drive the shaft 3. Rotation of the shaft 1 in the opposite direction establishes a reverse current through the servomotor armature, and the brake release winding 14 is energized; hence, the servomotor 4 drives the shaft 3 in this direction. When the shaft 3 has taken a position corresponding to the shaft 1, the system may come to rest so that the contact gear 7 still engages the contact gear 10, thereby permitting circulating currents in the brake release windings 14, 15. To prevent this, an insulating gear 17 freely mounted on one of the shafts, shown on shaft 1, is urged by a spring 18 relative to the gear 7 in the direction of the arrow A, and engages the gear 9. This gear 17 brings the contact gears 7, 9 into engagement thereby ensuring separation of the contact gears 7, 10, which prevents the undesired currents. Specifications 556,287 and 597,276 also are referred to.
Patent GB-839301-A (GB)
Title: Improved electric circuit-breaker having arc-extinguishing means
IPC: H01H9/34
Filed: 1958-08-26
Abstract: 839,301. Arc-rupturing in switches. ALLISCHALMERS MANUFACTURING CO. Aug. 26, 1958 [Aug. 30, 1957], No. 27394/58. Class 38 (5). A circuit-breaker generally similar to that described in Specification 754,726 has an arcchute 26 comprising arc runners 30, 31, whose lower ends partially embrace blow-out coils 28, 29 and whose vertical sides form the inner walls of exhaust vents 63, 64. Each runner has apertures 65 whereby metallic vapours generated by the arc terminals are immediately exhausted into the vents. The runner may have a central longitudinal rib to guide the arc terminal, Fig. 4 (not shown), while in a further modification the apertures 65 are replaced by one or more vertical slots arranged in any desired configuration, Fig. 5 (not shown).
Patent GB-319492-A (GB)
Title: Improvements relating to machinery guards
IPC: F16P1/02
Filed: 1928-09-24
Abstract: 319,492. Electro-Mechanical Brake Co., Ltd., and Abberley, J. Sept. 24, 1928. Guards for the rotating cutters of milling and like machines comprise a number of identical units, such as curved slotted plates a, preferably carried on a common supporting-rod c passing through eyes b. Each eye b extends over half the width of its plate and is formed either by bending up the plate, or by securing a tube thereto, or, as shown, by casting as a boss. The narrowest guard consists of a front and a rear plate a only, but wider guards can be built up of two or more pairs, as shown in Fig. 1, the bolt c, which may have a head and nut or two nuts d, being stocked in various lengths The front and rear plates are angularly adjustable to the cutter diameter and the bolt c also is adjustable in slots g in brackets e clamped on a part f of the machine.
Patent GB-690642-A (GB)
Title: Improvements relating to casings or coverings for heat-insulating materials
IPC: F16L59/18
Filed: 1950-11-10
Abstract: 690,642. Heat insulation. BURTON, A. Oct. 16, 1951 [Nov. 10, 1950], No. 27533/50. Class 64 (ii) Heat-insulating materials f applied to a surface, e.g. that of a vessel or pipe built up by bolting together the flanges b of sections a, are themselves covered by a casing comprising flanged panels or sections g and connecting members j, the latter being of channel section for enclosing the material f about the flanges b. Moreover, each member j binds together the flanged ends of the sections g adjacent the flanges b and is secured to the bolts d connecting these flanges, e.g. by strips m passing through a short slot n or two separate slots n' in the member j. The ends of the strips are bent over to m<SP>1</SP>, the connecting member j, if its sides are curved as shown, having been sprung into position to engage flanges h on the sections g. The members may be of rectangular section, Fig. 1 (not shown) and have flanges lying on the sections g.
Patent GB-1159908-A (GB)
Title: Automatically Collapsible Cargo Cotainer
Inventor: POHL ALEXANDER
IPC: B65D6/16
Filed: 1968-06-11
Abstract: 1,159,908. Shipping container. A. POHL. 11 June, 1968, No. 27596/68. Heading B8P. A knock-down shipping container comprises a roof 3 hinged to a front wall 2 and also connected by double hinges 9 to a rear wall 5, in the position shown, the hinges 9 providing a gap between the rear wall and the roof, the top edge 16 of the rear wall having an upwardly directed flange 16A overlapped by a downward rim 4 around the roof, wheels 17 at the lower end of this front wall running over the top edges 15 of hinged end walls 6 of the container as it is erected. The container may be erected by a winch 11, &c., a line from a second winch 14 being passed through the gap between the rear wall 5 and the roof 3 to facilitate handling the rear wall.
Patent GB-1479014-A (GB)
Title: Cameras
IPC: G03B7/085
Filed: 1974-06-21
Abstract: 1479014 Camera exposure control AGFAGEVAERTAG 21 June 1974 [22 June 1973] 27653/74 Heading G2A  On actuating a release 21 a spring 4 moves a mask 2 against the action of a retarding device 6, 7, 12 until the illumination on a phototransistor 17 triggers a thyristor 15 to turn on an electromagnet 13. This locks an armature 12 forming part of the retarding device and thus stops further movement of mask 2, the position of the mask then determining diaphragm aperture and/or shutter speed by means of a coupling (not shown).
Patent GB-653167-A (GB)
Title: Improvements relating to time-delay retractive electric switches
IPC: H01H5/04
Filed: 1948-10-25
Abstract: 653,167. Retractive switches. POWER EQUIPMENT CO., Ltd., and HEATH B.H. Oct. 25, 1948, No. 27728. [Class 38(v)] In a time-lag retractive switch, means are provided to prevent the closure of the contacts until a plunger or piston has been' moved in a cylinder to a predetermined' extent, so that the switch reopens with a time lag, which is substantially the same for successive switch operations;' as it  necessitates a full depression of the knob to close the contacts each time the switch is used. The switch has an actuating knob 9 formed on the end of a rod 8 carrying the piston which is formed by a cup leather 11 fixed between a plate 12 and a hollow cylindrical. member 13.The rod 8 passes through a slot 14 in a contact member 15, which is biassed by springs 21 (one shown), downwardly towards the base of the switch and laterally into a position where the end 22 of the member 15 is located on or over the upper edge 23 of the casing 1. When the knob 9 is depressed, the piston is moved down the cylinder 5 against a spring 7, and the springs 21 at first cause the contact member 15 to tilt about the edge 23 into the full line position shown in Fig. 3. As the piston nears the bottom of its stroke, a cam projection 24 on the rod 8 enters the slot 14 and causes the contact member 15 to move to the right, thus enabling the springs 21 to snap the contact member down into the position shown in dotted lines in Fig. 3 where the contacts 18, 19 are closed. When the knob is released, the spring 7 returns the piston slowly at a rate determined by the setting of an adjustable needle valve 27, until the cup leather 11 reaches an enlarged part 28 of the cylinder 5. The piston and rod now move rapidly upwards and the member 13 engages the contact member 15 to cause a rapid opening movement of the contacts 18, 19. A stop plate 29 limits the outward movement of the member 15, the end 22 of which is moved by the springs 21 over the edge 23 of the casing on the last part of the return movement, the cam 24 having been disengaged by the upward movement of the rod 8.
Patent GB-699060-A (GB)
Title: Improvements in or relating to the embossing of thermoplastic film
IPC: B29C59/06
Filed: 1951-11-27
Abstract: 699,060. Electrical control systems. CHAVANNES, M. A. Nov. 27, 1951, No. 27776/51. Class 40 (i) [Also in Groups V and XVI] In order to keep constant the temperature of a carrier belt 1 in an embossing machine (see Group V) the distance between the belt and a set of heaters 11 is varied inversely with the speed of the belt. This distance is controlled by a solenoid 17 fed by an A.C. or D.C. generator 16 driven from the driving rollers 2, 3, 4 of the carrier belt.
Patent GB-1343247-A (GB)
Title: Diagnostic agent for the detection of urobilinogen bodies in body fluids
IPC: G01N33/50
Filed: 1972-06-14
Abstract: 1343247 Determination of nrobilinogen BOEHRINGER MANNHEIM GmbH 14 June 1972 [19 June 1971] 27813/72 Heading BIX A diagnostic agent for the detection of nrobilinogen, possibly together with bilirubin in body fluids comprises at least one stable benzene diazonium salt, the optionally polysubstituted phenyl radical of which contains in the o or p position to the diazonium group at least one polyatomic electron donor group with at least one mesomeric electron pair, the sum of the Hammett sigma values of all the substituents not exceeding 0.4; a solid or liquid organic or inorganic acid or acidic salt and optionally a wetting agent and/or stabiliser. The benzene diazonium salt may have general formula  where one or both of R 1  and R 2  is or are polyatomic electron donor groups containing at least one mesomeric electron pair, and when R 1  and R 2  are different one of R 1  and R 2  may be hydrogen, halogen or a lower alkyl radical, and R 3  and R 4  which may be the same or different are hydrogen or halogen or groups which do not sterically hinder diazo coupling with nrobilinogen. The diagnostic agent may be impregnated into an absorbent carrier, for example filter paper, fleece or felts of polypropylene or polyesters, from a solution containing per 100 ml 0.05 to 5 gm diazonium salt, 2 to 30 gm acid, 0.1 to 3 gm wetting agent; or may be used as a solution. In the presence of both nrobilinogen and bilirubin two successive colour changes may take place in the test system.
Patent GB-209804-A (GB)
Title: Apparatus for manipulating rolls or lengths of photographic films or paper
IPC: G03D13/14
Filed: 1922-10-13
Abstract: 209,804. Stringer, H. B. 0ct. 13, 1922. Apparatus for developing and treating roll films; trays and dishes.-Apparatus for winding rolls of photographic strip material with spaces between adjacent layers comprises a rotatably mounted reel 11, Fig. 2, provided with opposite pairs of radial guides 15, Fig. 1, at its ends, and a stationary shoot 23 directed towards the reel and carrying the spacers 21 in the form of flanged rollers which are automatically removed therefrom, one at a time, by the radial guides 15 as the reel is rotated'. The lower end 24 of the shoot 23 is turned up and shaped to retain the lowest spacer 21, with its flanges 22 overhanging, within the reel in the path of the radial guides 15, and has adjustable hooks 40 which can be made to engage with the second spacer from the bottom to stop the supply of the spacers. The shoot may be hinged at one or more places 38, Fig. 1<a>, to enable it to be folded and may have its upper end supported on an adjustable or other strut 39. In operation, the film, &c., spool 28 is mounted on the reel-supporting standards 17 between spindles one of which is locked in engagement with the spool and provided with a handle 32 for re-winding. The free end of the film is secured to the hub of the reel which is rotated by turning a handle 36 attached to a gear-wheel 35 engaging with a gear wheel 34 secured to the reel spindle and the film is wound thereon with the uncoated side resting on the spacers. The wound reel can be removed from the standards 17 through slots 44. Tanks, Fig. 6, for liquid treatment of the film reel with its spindle vertical, have each a bearing 45 at the bottom for the spindle and their lids 48, Fig. 8, have a liquid entry and inspection hole 53, together with a central aperture 47 which engages a disc 46, Fig. 2, attached to the spindle to hold the reel in position. The tanks are adapted to be nested together, the outermost tank having overflow channels 51, 52 for use as a washing tank. The reel and tanks may be constructed of sheet steel lined with vulcanite. Reference has been directed by the Comptroller to Specifications 4441/01, [Class 42, Fabrics, Dressing &c.]. and 24307/13, [Class 42 (i), Fabrics, Finishing &c.].
Patent GB-247316-A (GB)
Title: Improvements in apparatus for producing illuminated displays of advertising and other matter
IPC: G09F13/00
Filed: 1924-11-21
Abstract: 247,316. Luminograph Co., Ltd., and Bye, R. H. Nov. 21, 1924. Make-and-break switches, mechanical; contacts.-In an intermittently illuminated advertising or display apparatus of the kind in which a series of contacting or operating pins or plugs is mounted on a supporting base, the pins or plugs are provided with hinged or removable end portions, whereby any desired selection of them can be made of a length to render them operative or shortened sufficiently to render them inoperative. Such pins may, for example, be used on the wheels of the apparatus described in Specification 198,048 to effect a selection of the lamps to be illuminated on a panel, or they may constitute the projections on the wheels for operating the motor make-and-break switch as described in Specification 217,665. In the construction shown in Figs. 1 and 3, the spoke of an intermittently rotated wheel is formed of central member 4<c> carrying plates 4a, 4b constituting the supporting bases for the pins 2, which are split at 8 so as to give a grip on the inside of removable caps 3 whereby their effective lengths are altered. A further adjustment to give the exact length required may be made by the provision of a contacting or operating screw 9 in each cap 3. In a modification, Fig. 4, the fixed ends of the pins 2, instead of being riveted to the plates 4<a>, 4b are split and engaged within sockets 5 screwed into the member 4<c>. According to the Provisional Specification, the same object may be attained by making the pins or plugs easily removable only.
Patent GB-1123254-A (GB)
Title: Improvements relating to low temperature storage tanks
Inventor: TODD GORDON
IPC: B65D90/12
Filed: 1965-07-01
Abstract: 1,123,254. Liquefied gas storage tanks. WHESSOE Ltd. 30 June, 1966 [1 July, 1965], No. 27978/65. Heading F4P. The flat bottom 1 of a liquefied gas storage container is supported on a layer of granular heat insulating material 3, e.g. gravel, which extends outwardly beyond the periphery of the base and which is protected from ambient moisture by a layer 7 of asphalt. The roof and vertical cylindrical wall 2 of the container is lagged with heat insulation material 8 wrapped with an impervious cover 8a. The gravel 3 and asphalt 7 are retained within a steel tray 4 provided with a steam-heated tube 6. In a modification, the tray is of concrete supported by piles or by a continuous slab of concrete. The cylinder wall 2 has a plurality of peripherally spaced brackets (11), Fig. 3 (not shown), each engaged by a holding-down bolt (13) extending downwardly through a sleeve (14) in gravel layer 3 and pivoted to anchor bolts (15).
Patent GB-1283632-A (GB)
Title: Phenylethanolamine derivatives
IPC: C07D317/58
Filed: 1970-06-09
Abstract: 1283632 Phenylethanolamine derivatives DRACO AB 9 June 1970 [13 June 1969] 27986/70 Heading C2C Compounds of the general formula (R=H or C 2-5  acyl; A=p-methoxyphenylpropyl-2, α,α-dimethylphenethyl or 3,4-methylenedioxyphenylpropyl-2) and their salts are prepared by standard methods, e.g. reacting a compound of the formula (R<SP>1</SP>=H or replaceable group) with ANHR<SP>2</SP> (R<SP>2</SP> =H or mono- or bicyclic aralkyl group containing up to eleven carbon atoms) and, if necessary, replacing R<SP>1</SP> by R and R<SP>2</SP> by H, optionally followed by salt formation and/or resolution. The above compounds have bronchospasmolytic activity, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-686573-A (GB)
Title: Method and apparatus for the manufacture of reinforced sheeting, from glass or like substances
IPC: D04H5/12
Filed: 1950-11-15
Abstract: 686,573. Compound sheet materials. SCHULLER, W. Nov. 15, 1950. No. 27997/50. Drawings to Specification Class 140 [Also in Group XXIII] Glass fibre sheeting is reinforced on the top or bottom surface, or both, in the longitudinal or transverse direction, or both or zig-zagwise, by threads, yarns, or slivers of glass fibre, asbestos, textile, artificial resins, plastics, or the like. The threads may be applied to one or both sides of a travelling web of glass fibres from one or more sets of bobbins or thread guides, which may reciprocate transversely. Specification 686,564 is referred to.
Patent GB-708856-A (GB)
Title: Improvements in method of making pneumatic tyres
IPC: B29D30/06
Filed: 1951-11-29
Abstract: 708,856. Pneumatic tyres. UNITED STATES RUBBER CO. Nov. 29, 1951 [Feb. 21, 1951], No. 28003/51. Class 144(2) [ALso in Group V] A method of making a pneumatic tyre comprises assembling rubber tread and side-wall portions 12, 10 on a foundation 13 of rubberized nylon cords with inextensible beadreinforcements 18, stretching the cords from 3 per cent to 20 per cent, and vulcanizing the assembly while maintaining the cords in the stretched condition in external over-size mould elements 24, 25 to produce the finished tyre of the desired dimension. Specification 128,777, [Class 87(ii)], is referred to.
Patent GB-1359384-A (GB)
Title: Intertiacontrolled fail-safe vehicle brake
IPC: F16D65/14
Filed: 1973-09-17
Abstract: 1359384 Spring-applied brakes; automatic regulation of brakes A F KENT 17 Sept 1973 [15 June 1972] 28093/72 Headings F2E and F2F A vehicle includes a braking system in which the brakes are applied by springs and released by mechanical or hydraulic means or compressed air or vacuum acting in opposition to the springs, release being initiated by manual control or through linkage either to motive power on the vehicle or to a haulage system to which the vehicle is connected or to a trigger-operated toggle, the vehicle carrying an inertia weight mounted on a lever or in guides and so connected to the brakes that in operation the inertia weight, in opposition to a further spring, opposes, or reduces the effect of, the brake springs when the "G" force exceeds a predetermined value. As shown in Fig. 1 brakes (not shown) are connected to brake rod 4 and are being applied by a spring 2 acting on a piston 3 in cylinder 1. Two alternative inertia devices are shown on the right. In the upper one an inertia weight 7 mounted in guides or, as shown, in a tube 8 is restrained by a spring 10 in a master cylinder 12 connected to a slave piston 13. When a predetermined "G" value is exceeded, weight 7 compresses spring 10 and delivers hydraulic fluid to piston 13 which rocks a lever 14 about a pivot 15 to engage a roller 16 on rod 4 and move the rod in brake-release direction. In the lower device an inertia weight 5 is mounted on a lever 6, pivoted at its upper end, the lever 6 being connected so as to effect compression of a spring 9 in a master cylinder 11, connected in turn to the slave piston 13. In Fig. 2 (not shown), a rigid vertical guide is engaged by spring-operated brake shoes mounted on a vertically-movable cage, so that when the haulage gear fails the spring applies the brakes; if, however, the resulting deceleration causes a predetermined "G" value to be exceeded, a pivoted lever, carrying a spring- restrained inertia weight, acts on the brake linkage partially to release the brakes. In Fig. 3 (not shown), an arrangement similar to that of Fig. 2, is associated with a rail vehicle mounted on parallel rails, the brake shoes operating on these rails. The brake-applying mechanism may be triggered off in emergency by any one of a series of hinged cranks located at the track side and moved into striking position by a lever from a single control point. In Fig. 4 (not shown) such a rail vehicle additionally has a trailing spring-loaded lever with a trackengaging shoe at its lower end, so that if the vehicle should tend to run backwards the lever is forced to pivot about an aperture in a guide on the vehicle and trigger off the brake-applying mechanism.
Patent GB-426654-A (GB)
Title: Improvements in electric batteries
IPC: H01M2/20
Filed: 1933-10-11
Abstract: 426,654. Batteries. GORDON, C. J., 77, Tufnell Park Road, London. Oct. 11, 1933, No. 28096. [Class 53] A dry battery comprises a number of dishshaped insulating containers 1, each of which has an electrode 2, 3 on opposite sides of its base, the electrodes being drawn together against the base by a screw 8 passing through an aperture in the base. The screw may be made of the same material as the electrode 3 and may enter a tapped hole in the electrode 2. To prevent electrolyte from reaching the screw a packing ring 10 may be provided on one or both sides of the base of the container. If the screw is of different material from the electrode 3 it may be varnished to prevent corrosion. The electrolyte may be in dry form and may be contained in an absorbent pad 11, the battery being activated by immersion in water which can pass through holes 12 in the containers 1.
Patent GB-301172-A (GB)
Title: Process for producing surfaces suitable for skating and such like sports
IPC: C09B3/24
Filed: 1927-10-22
Abstract: 301,172. M³ller, F. E. Oct. 22, 1927. Skating rinks.-The surface material for a skating rink is formed by mixing equal parts of calcined sodium carbonate and crystallized sodium carbonate, adding a mixture of calcined and crystallized sulphate of soda in such quantities that the sulphate of soda is less than one half the sodium carbonate and finally adding water to the mixture. A small percentage of tragacanth may be added to the mixture and a greasy oil such as castor oil or glycerine may be spread on the surface to render it more slippery.
Patent GB-375648-A (GB)
Title: Improvements in the apparatus used for driving the quadrant nut in the self acting mule
IPC: D01H3/24
Filed: 1931-10-10
Abstract: 375,648. Mules. BROADHURST, S., 556, Rochdale Road, Royton, Lancashire. Oct. 10, 1931, No. 28177. [Class 120 (ii).] To obviate the effect of the upward creeping of the quadrant nut which causes snarls and an undue thickening of the cop in mules wherein the quadrant screw is operated by a governor band pulley, the screw and its actuating gear are arranged so that the creeping tendency of the nut is in a downward direction and any such movement is arrested. The screw bevel U is mounted above the stud bevel S or the thread of the quadrant screw is of the opposite hand from the usual, and the governor band pulley B is driven in a reverse direction by reversing the run of the ropes or by other means. These arrangements ensure that any creeping of the nut is in a downward direction. To counteract any such action, a ratchet wheel A preferably provided with three teeth is fixed to the governor band pulley B and a pawl L is mounted on a bracket G carried by the quadrant tube centre stud K, so that any reverse rotation of the pulley B due to creeping is counteracted by the action of the pawl.