baber/WOPTO huggingface dataset:
Patent GB-359243-A (GB)
Title: Landing wheel, with brake for flying machines
IPC: B60T1/06
Filed: 1930-11-11
Abstract: 359,243. Brakes ; vehicle wheels. MOND, A. L., 19, Southampton Buildings, London.-(Elektronmetall Ges.; Cannstatt, Stuttgart, Germany.) Nov. 11, 1930, No. 33923. [Classes 103 (i) and 144 (i).] Landing wheels for flying machines are formed of two integral halves each comprising a hub, a rim portion and a rim supporting portion, the two halves being connected together in the plane of the wheel and a brake is entirely embedded in one of the halves. As shown in Figs. 1 and 2 the brake comprises a pair of shoes h mounted on diametrically opposite pivots i and applied to a drum p by fluid pressure cylinders d, operating levers f engaging the ends of the shoes. In Figs. 4 and 5 the shoes are applied by cams g, g<1> actuated by levers o, q connected together by a rod p the central part of which is formed as a loop embracing the wheel hub. The cams are actuated by a lever m<1> on the shaft of the cam g and a pull-rod m. A spring s holds a projection t on the rod p normally in contact with a stop.
Patent GB-1465757-A (GB)
Title: Electric protection triggering apparatus
IPC: H02H3/44
Filed: 1974-08-01
Abstract: 1465757 Electric protective arrangements LICENTIA PATENT - VERWALTUNGSGmbH 1 Aug 1974 [1 Aug 1973] 34012/74 Heading H2K In a system for detecting short-circuit currents in D.C. equipment such as a railway supply a detector comprises a di/dt converter 10 connected to the supply circuit (not shown) and having a resistive load 11 connected to an input amplifier 12, a resettable integrator 13 arranged to provide an output which is the integral of its input over a predetermined time period, set by a timing element 16, and to feed a comparator 14 which provides an output signal U a  if its input exceeds a predetermined reference voltage U ref . A time independent measuring element 17 is connected in parallel with the integrator 13 and comparator 14 and causes an undelayed output signal U a  to be produced with the occurrence of high output signals from the converter 17.
Patent GB-1008536-A (GB)
Title: Improvements in or relating to phototropic materials
IPC: B44F1/12
Filed: 1961-09-22
Abstract: Phototropic materials have a composition comprising a solid solution of a transitional metal halide and a polymeric plastics material the molecule of which has side groups to form the solid solution with said halide.  The preferred polymeric material is a vinyl alcoholvinyl acetate copolymer.  Preferred metal halides are the chlorides and bromides of copper, cobalt, iron and nickel. The sensitivity may be increased by an additive which is a metal halide differing from that already present, e.g. a chloride or bromide of nickel, iron, chromium, cobalt or tin, particularly stannous chloride or bromide, or an alkali metal halide, e.g. sodium or potassium bromide; or a non-volatile acid, e.g. phosphoric acid. The materials may be cast from solvents and oriented by stretching.  Examples describe materials comprising vinyl alcohol-vinyl acetate copolymers and (1) cupric chloride, (2) cupric bromide, (3) cupric bromide and cupric chloride, (5) cupric bromide, stannous chloride, potassium bromide and phosphoric acid and (6) cupric bromide, stannous chloride, potassium bromide, manganous bromide and phosphoric acid; and polyvinyl alcohol and (4) cupric chloride.  Specifications 1,008,537 and 1,008,538 are referred to.ALSO:Phototropic materials have a composition comprising a solid solution of a transitional metal halide and a polymeric plastics material the molecule of which has side groups to form the solid solution with said halide.  The preferred polymeric material is a vinyl alcohol-vinyl acetate copolymer.  Preferred metal halides are the chlorides and bromides of copper, cobalt, iron and nickel. The sensitivity may be increased by an additive which is a metal halide differing from that already present, e.g. a chloride or bromide of nickel, iron, chromium, cobalt or tin, particularly stannous chloride or bromide, or alkali metal halide, e.g. sodium or potassium bromide; or a non-volatile acid, e.g. phosphoric acid.  The materials may be oriented by stretching. The materials may be cast from solvents, and examples describe materials comprising vinyl alcohol-vinyl acetate copolymers and (1) cupric chloride, (2) cupric bromide, (3) cupric bromide and cupric chloride, (5) cupric bromide, stannous chloride, potassium bromide and phosphoric acid and (6) cupric bromide, stannous chloride, manganous bromide, potassium bromide and phosphoric acid; and polyvinyl alcohol and (4) cupric chloride.  Specifications 1,008,537 and 1,008,538 are referred to.
Patent GB-492092-A (GB)
Title: Improvements in or relating to the illumination of dials of instruments
Filed: 1936-12-11
Abstract: 492,092. Indicating - apparatus. KOLLSMAN, P. Dec. 11, 1936, No. 34087. Convention date, Dec. 11, 1935. [Class 106 (iv)] Dials, illuminating.-The dial 4 of an instrument B is covered with a sight window 8 and is illuminated by an adaptor comprising a transparent plate 12 carried by a frame C with an edge adjacent an electric lamp 18, the frame being shaped to fit the front of the instrument casing and the lamp being mounted in a plug 17 removable from the front of the frame. To assist reflection within the plate and to direct rays on to the dial, the rim 25 and an external peripheral ring 26 of the plate are coated with white paint, a part of the rim adjacent the lamp being left uncoated to permit the rays to enter. The part of the frame surrounding the lamp is formed as an arcuate chamber 24, the walls of which are preferably coated with white paint.
Patent GB-325542-A (GB)
Title: Improvement in a tuning attachment for organ pipes
IPC: G10B3/08
Filed: 1928-11-21
Abstract: 325,542. Silvers, S. Nov. 21. 1928. Pipes. - A tuning-device for organ pipes comprises a plate 13 sliding on the outside of the pipe in guides 11 at the sides of a slot 10, the plate 13 being adjusted by means of a screw 15 with an operating head 22. A reduced part 18 between heads 16, 17 on the screw 15 rotatably engages a bearing in a bracket 14 on the plate 13 whilst the threads on the screw 15 engage a threaded opening in a fixed bracket 20. A set-screw 21 locks the screw 15 after the plate 13 has been adjusted to close the slot 10 to the desired extent.
Patent GB-521662-A (GB)
Title: Improvements in and relating to resistance electric welding machines
IPC: B23K11/31
Filed: 1938-11-24
Abstract: 521,662. Welding ; valves. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 24, 1938, No. 34208. Convention date, Nov. 24, 1937. [Class 83 (iv)] [Also in Group XXIX] The hydraulically or pneumatically operated electrode or clamps of a resistance welding machine are controlled by a double-ended piston valve having an electromagnet associated with each end thereof. The upper end of the electrode cylinder 6 is connected by a pipe 4 to a valve body 1 provided with an exhaust pipe 5 and with a pipe 3 connected to an air or liquid container. The piston valve 2 is operated by a pair of electromagnets 13, 14 in turn connected to the network 17 through a reversing switch 16 connected to the valve rod 18, and through a hand- or foot-operated switch 15. When the switch 15 is in the position shown, the electromagnet 13 is in circuit through switch 16 and the valve is moved into the position shown to connect the cylinder to exhaust and allow the electrode piston 7 to be raised by a spring 12. When the valve reaches this position the switch 16 is reversed into the position shown, so that on moving over the switch 15, the electromagnet 14 is energized to reverse the valve 2 and thus connect the cylinder to the supply. The valve is held in its end positions by sprung locking pins engaging slots thereon.
Patent GB-997674-A (GB)
Title: Improvements in or relating to the production of polyvinyl chloride filamentary material
Inventor: OKAMURA SEIZO
IPC: D01F6/08
Filed: 1962-09-06
Abstract: Emulsions are made containing a graft copolymer of vinyl chloride and vinyl alcohol and free polyvinyl alcohol, having a viscosity less than 200 cps. at 30 DEG  C. and a particle size of less than 500 <\>r.  The graft copolymer may contain 50-80% by weight of vinyl chloride, and the emulsion may be made by polymerizing vinyl chloride in a dispersing medium of polyvinyl alcohol in the presence of a polymerization catalyst (e.g. potassium persulphate) and an emulsifier to obtain an emulsion having a viscosity less than 200 cps. at 30 DEG  C. and a particle size of less than 500 <\>r and thereafter mixing said emulsion with free polyvinyl alcohol to obtain the desired emulsion, which is used for spinning fibres. Formalization of fibres produced from the emulsions may be effected using a solution containing sulphuric acid, sodium sulphate and formaldehyde as a coagulating medium.
Patent GB-605249-A (GB)
Title: Improvements connected with collapsible tubes
IPC: B65D47/26
Filed: 1945-12-19
Abstract: 605,249. Collapsable tubes. WHEELER, J. E. Dec. 19, 1945, No. 34366. [Class 66] The usual screw-on cap of a collapsable tube 9 is substituted by a cover 13 with an opening 14 in its side wall and which turns on the neck 10 of the tube 9, through an arc allowing it to register with or to cover the extrusion opening 11 of the tube 9. The cover 13 is held on by a turned-over end of an extension 12 of the neck 10. The rotation of the cover 13 is limited, e.g. by a stop in a recess or by a pin in a slot.
Patent GB-318982-A (GB)
Title: Improvements in or relating to fountain pens
IPC: B43K5/06
Filed: 1928-11-22
Abstract: 318,982. Dahlberg, A. O. Sept. 14, 1928, [Convention date]. Self-filling reservoir pens. -A fountain pen is filled by deforming a flexible sealing- member which closes the rear end of the barrel and which is engaged at its central portion by an operating device. The flexible diaphragm 28, which closes the rear end of the barrel, is normally frusto-conical in shape, and is held in place in the barrel by complementarv conical faces on the barrel and on a sleeve 42 held in place in the barrel by a nut 44. The central thicker part of the diaphragm is attached to a plunger 36 slidably guided in the sleeve 42. The plunger is attached, preferably by means of a flange and an undercut groove, to a cap 60 normally screwing on the end of the sleeve 42, but adapted to be pressed from the barrel by a spring 64 acting against a pin 66 mounted in the sleeve and passing through slots in the plunger. In use, the cap is unscrewed and the plunger moved rearwardly by the spring, the diaphragm 28 rolling upon itself. The plunger is then reciprocated a number of times, air being expelled through a tube 24, and ink being induced through the feedbar. In order to give a longer stroke to the plunger, the cap and plunger may be connected by screw-threads so that when the cap is unscrewed from the barrel it is also screwed a certain distance backward along the plunger, a stop being provided to prevent complete disconnection. In a further modification, the plunger may be separate from the cap and be provided with a conical surface adapted to engage with a correspondingly-shaped part of the sleeve to be held frictionally in inoperative position. In a further modification, the plunger 116, Fig. 10, is provided with packing 144 to act as a piston, and is connected to the flexible sealing-member 122 which is cemented to a sleeve 124 screwing in the end of the barrel. The plunger is actuated by a knob 120, and is under the influence of a spring 108 acting against a slotted disc resting against a shoulder on the air-tube 98. Small pieces of solder are attached to the coils of the spring to prevent rubbing against each other or against the barrel or air tube, with consequent damage to the gold plating on the spring.
Patent GB-325586-A (GB)
Title: Improvements relating to devices for protecting a person from the radiations of an electric arc
IPC: G02C9/00
Filed: 1928-11-22
Abstract: 325,586. British Thomson-Houston Co., Ltd., and Warburton, J. H. Nov. 22, 1928. Goggles.-Protection of the eyes of a user of an electric arc, e.g. in welding operations, is effected by a protective shield arranged as a grid shutter of dark coloured glass or mica adapted to be interposed automatically in the line of vision whenever the current is passing. The shield may be actuated by the current itself or by a current proportional thereto, e.g. by an electromagnet. Instead of being operated directly the shield may be moved by a bulb release or a Bowden wire release under the control of a solenoid energized by the current. The shield may be mounted in a mask or helmet to be worn by the operator or may be mounted in front of the job or attached to the welding stick.
Patent GB-1097395-A (GB)
Title: Improvements in and relating to rolling mills
Inventor: STANIFORD HAROLD HENRY
IPC: B21B31/26
Filed: 1964-08-24
Abstract: 1,097,395. Rolling. JOHNSON MATTHEY & CO. Ltd. Aug. 24, 1965 [Aug. 24, 1964], No 34476/64. Heading B3M. In a strip, tape, or foil, mill having work rolls 2 and 3, and backing rolls 5-8, the top roll 2 is engaged by two metal rings 4 freely mounted on the bottom roll, so as to force the rolls apart. The force applied by the rings, and therefore the pass, can be varied by wheels 13, which are actuated by screws 15. Roll 3 is driven from a shaft 9 and carries a spur gear 10 which meshes with a spur gear 11 mounted on shaft 12 of the upper roll 2.
Patent GB-605484-A (GB)
Title: Improvements in or relating to range finders
IPC: G01C3/12
Filed: 1945-12-20
Abstract: 605,484. Range-finders. KODAK, Ltd. Dec. 20, 1945, No. 34563. Convention date, Jan. 19, 1943. [Class 97 (i)] In coincidence range-finders in which an image of a one range indicating element is formed adjacent another by light which has passed through at least a portion of the optical system of the range-finder the elements are carried on a movable support and one is a vernier scale for the other. The scale may move linearly or rotate and may be observed in the range-finder eyepieces. The range-finder comprises end prisms 11 and objectives 12 and a central prism system giving two juxtaposed images observed in the eyepiece 18, coincidence being effected by movement of the whole prism system transversely of the axes of lenses 12. A laterally movable glass plate bears a scale 26 illuminated by a lamp 28. The light passes into the prism system via a prism 30 and is reflected thereby to rhomb 15 and collimated by lens 12. It then passes via prism 11 to a small further prism 31 cemented thereto and thence to a similar prism 32 whence it forms an image 26<1> adjacent a vernier 27 via reflector 11, lens 12 and prism 33. The image 26<1> and vernier 27 may be viewed directly or light therefrom reflected into the eyepiece by prism 45. The plate 25 is moved laterally so that the portions of scale vernier which match are in the field of view. Alternatively a circular rotatable plate having concentric scale and vernier may be used. Instead of using prisms 30, 33 the light from the scale may be reflected by the backs of prisms 13, 14. The prism system may be replaced by crossed mirrors. The invention may be applied to coincidence finders of the type described in Specification 605,482. Specifications 605,481, 605,483, 605,485 and 605,486 also are referred to. The Specification as open to inspection under Sect. 91 describes also the modification shown in Fig. 3 of Specification 605,485. This subject-matter does not appear in the Specification as accepted.
Patent GB-1428939-A (GB)
Title: Travelling wave shedding looms
IPC: D03D47/26
Filed: 1974-08-06
Abstract: 1428939 Travelling wave shedding looms WIRKMASCHINENBAU KARL-MARXSTADT VEB 6 Aug 1974 [13 Aug 1973] 34582/74 Heading D1E A travelling wave shedding loom has a shuttle picking and beat-up mechanism comprising a splined shaft 9, a number of bushes 14 splined on the shaft 9 and each having a key 15 and circumferential grooves 18, a number of toothed shuttle picking and beat-up discs 10 each keyed to the bush and being separated from each other by spacer plates 16 keyed to the bush 14 and having an external diameter equal to the root diameter of the teeth 11 of the discs 10, and a number of positioning circlips 19 which fit over the bush 14 and key 15 and have flats engaging in the grooves 18 to separate the discs 10 and plates 16 into stacks 22. A number of such bushes 14 with stacks 22 may be positioned on the splined shaft 9 by separating plates 24 (Figure 7, not shown) engaging directly on the shaft 9 between the bushes 14 or the bushes may be secured on the shaft by a screw 27 (Figures 10, 11, not shown).
Patent GB-326863-A (GB)
Title: Improved bituminous paving
IPC: C08L95/00
Filed: 1928-11-23
Abstract: 326,863. Marks, Sir G. C., (Rol, Lister, et Cie). Nov. 23, 1928. Compositions containing bituminous materials. -In a process of cold laying, compositions consisting of an aggregate admixed with bitumen previously softened by the addition of a prcportion of bituminous or asphaltic base oil or refined tar are used the matrix having a melting point between 15‹ C. and 25‹ C. The invention also consists in the composition when refined tar is used as the softener but not otherwise. In examples 75 per cent of bitumen of 50 penetration and 25 per cent of heavy asphaltic base oil distillate or 58 per cent bitumen of 200 penetration and 42 per cent refined tar are heated together to form the binder.
Patent GB-1022022-A (GB)
Title: Improvements in or relating to relay-controlled private automatic branch exchanges
IPC: H04M3/58
Filed: 1962-09-11
Abstract: 1,022,022. Automatic exchange systems. SIEMENS & HALSKE A.G. Sept. 11, 1962 [Sept. 11, 1961], No. 34635/62. Heading H4K. In a P.A.B.X. using relay selectors, transfer of an exchange line call between a first and second P.B.X. subscriber is initiated by the first subscriber setting up an interim connection to the second subscriber whereafter the latter controls the setting up of a new connection to the exchange line and the release of the initial connection. Setting-up a call. Internal.-On lifting his handset, a subscriber's line relay comes up and starts an identifier circuit. The latter brings-in a common control circuit whereby a free link is allotted to the call and the subscriber is connected through a first selector to the link. Dial tone is reverted and the dialled digits are recorded in a register. The latter seizes a marker and the call is completed via a final selector. Provision is made for completing the call if the called subscriber, although busy on a first test of his line, clears during release of the calling side equipment. Release.-Hanging up by either party causes release of the equipment on his own side of the link, busy tone being reverted to the other party until he too hangs-up thereby completing the release of the call. Setting-up a call. External, outgoing.-This proceeds as before until the initial (exchange) digit(s) is received in the register. Provided that the subscriber has the correct class of service, as indicated by the operation of suitable relays, the original connection to the link is broken down and a new connection using another selector is set-up to an exchange line circuit. The call then proceeds under the control of the external exchange. If the subscriber does not have exchange priority he is reconnected to a free link. Setting-up a call. External, incoming.-Such calls are set-up by an operator. Transfer of an exchange call.-The P.B.X. subscriber operates an earthing key which unbalances the exchange line circuit to bring- up a relay which causes the exchange line to be held and the connection to be diverted to a special transfer position on the first selector. (The connection now extends from the subscriber through the exchange-line selector, exchange line circuit and a line to the aforementioned special position.) A free link is allotted to the position and a new internal call to the wanted extension set up as before. After the interim conversation, the called subscriber operates his earthing key to bring-in the identifier and marker, whereby he is connected through his own appearance on the exchange line selector to the exchange line circuit and the diverted connection is released. Use of capacitors.-Some of the relays are shunted by capacitors so as to affect their speed of operation or release and some of the relays are energized by means of charging or discharge currents from capacitors.
Patent GB-1112644-A (GB)
Title: Machine for automatically setting up cartons
IPC: B31B5/78
Filed: 1965-08-12
Abstract: 1,112,644. Setting up cartons from blanks. ATELIERS DE CONSTRUCTION DE COMPIEGNE. 12 Aug., 1965 [18 June, 1965], No. 34645/65. Heading B8C. [Also in Division B6] Setting-up cartons.-The end carton blank is slid from a stack 15 (Fig. 5), one face (1), (Fig. 1, not shown) is held by suction devices 57 (Fig. 5), while a swinging arm 62 acts on the adjacent face (2), (Fig. 1, not shown) to open the carton, and the carrier which fed the carton from the end of the stack then moves it (section 14 in Fig. 5) parallel to its direction of movement in the stack. The machine also closes the flaps at one end of the carton. In the embodiment illustrated blades 66 (Fig. 14, not shown) pass between the flaps (5), (6), (Fig. 1, not shown) to engage the opposite face 4 of the blank to assist in setting it up. The suction cups 57 are brought into engagement with the carton blank after this has risen sufficiently from the stack 15 to clear rollers 60. The feed is stopped during the setting-up action. Feeding carton blanks from the stack.-The carton blanks are fed through the stack by a pusher 17 (Fig. 5) coupled, under the control of a handle 35, to a pair of endless chains 23 biased by a pair of pneumatic rams 27. The rams 27 are fed alternately from an accumulator the pressure in which falls as the carton blanks are fed, so compensating for the reduced friction of a smaller number of blanks. While the carriage 17 is being retracted, to permit the stack to be replenished, the feed of cartons is maintained by a further carriage 36 provided with portions (41), (Fig. 9, not shown) which can be swung into and out of engagement with the stack and with a portion (42) which can be engaged with the chain. The end carton is slid upwardly from the stack by carriers (43), (Fig. 10, not shown) which remain parallel as they are driven by chains (47), (49). Lost motion between the carriers (43) and the chains permits the path of the carriers to be a rectangle with sharp corners. Closing end flaps. Opening end flaps.-While the carton is stationary its trailing flap (5), (Fig. 15, not shown), is closed by a hinged member (69), and its leading flap (7) is closed by a member (70) swinging about a shaft (71). The upper and lower flaps on this side of the box are subsequently closed by ploughs. The leading flap (11) on the opposite side is opened by a shoe (73) mounted on a parallelogram linkage (74), and the trailing flap (9) is opened by a fixed guide during the subsequent movement of the carton. Guiding the carton blanks.-During their upward movement from the magazine the blanks are guided between members (56a), (56b), (Fig. 14, not shown), one of which is swung about a vertical shaft (63) when the carton is to be opened. Adjustments for cartons of differing sizes.- The spacing between the members (56a), (56b) can be altered.