baber/WOPTO huggingface dataset:
Patent GB-631208-A (GB)
Title: Improvements in cavity resonators
IPC: H03B5/18
Filed: 1947-05-15
Abstract: 631,208. Velocity - modulation tubes. WESTERN ELECTRIC CO., Inc. May 15, 1947, No. 13143. Convention date, June 1, 1946, [Class 39 (i)] [Also in Groups XL (b) and XL (c)] Two reflex velocity modulation tubes 25 are mounted together in a casing 34 with a single means 33 controlling the tuning of their resonators 10 and 11 by equal and opposite amounts. The tubes comprise cathodes 17, collimating electrodes 18, grids 20 and 21 mounted in the resonator end walls and a reflecting electrode 24. The outputs of the tubes are combined in a mixer 44. A filter 46 removes the higher frequencies due to the actual tube oscillations and only permits the beat frequency to appear at the output 45.
Patent GB-205127-A (GB)
Title: Improvements in under-reamers
IPC: E21B10/32
Filed: 1922-05-10
Abstract: 205,127. Smith, R. R. May 10, 1922. Bore-hole apparatus.- In an under-reamer for well - boring comprising expanding cutters 7 suspended from a spring rod 2 by means of a, key 12 engaging slots 13, 14 in the rod and cutters, the key being tilted to permit its removal, a removable locking member 20 holds the key in normal position, the upper edge of the locking member extending under the key. The locking member is slidably engaged in a recess 25 aligned with the slot 14 of the cutter and is held by a rivet 26. The key has inclined parts 16 to permit tilting. Bearing ribs 8 on the cutter shanks engage grooves in the underreamer body and a shoulder 10 on each shank co-operates with a spreading shoulder 11 on the body to expand the cutters.
Patent GB-1040268-A (GB)
Title: Carpenter's claw hammer with vibration dampening means
Inventor: VAUGHAN HOWARD ADAMS
IPC: B25D1/04
Filed: 1965-03-29
Abstract: 1,040,268. Hammers; hand tool handles. VAUGHAN-BUSHNELL MANUFACTURING CO. March 29, 1965, No. 13228/65. Headings B4C and B4K. A claw hammer comprises a head 10 having an impact portion 14 and a claw portion 22, ribs 60 being formed on the claws in order to prevent vibration. As shown, the head is formed integrally with a steel handle 12 covered with a rubber or leather sheath 40 and provided with a socket 30 filled with a plastic vibration dampening resin 44; alternatively, the socket may be filled with a wooden plug. The hammer head may be separately formed and attached to, a steel or wooden handle.
Patent GB-1255194-A (GB)
Title: Improvements in or relating to apparatus for analytical evaluation of designs, drawings or patterns
IPC: G06T17/05
Filed: 1969-03-13
Abstract: 1,255,194. Evaluating designs. ROMAY A.G. 13 March, 1969 [13 March, 1968], No.  13305/69. Heading G4H. To evaluate a design, drawing or pattern, e.g. to calculate the heat requirement of a building from a plan, an electromechanical transducer is moved around the plan, electrical output pulses from it being fed to a computer to which are also fed in manually data representing for  example the height of a room and the coefficients of heat transmission for windows and doors, so that the pulses may be converted into a pulse train representing for example the length of a  room x the coefficient of heat transmission. The transducer comprises a toothed wheel 2 (Fig. 2) moved as the plan is scanned between a  light source 4 and photo-cell 5 so that a pulse train is derived from the photo-cell.
Patent GB-133780-A (GB)
IPC: B64D37/06
Abstract: 133,780. Neal, S. E., and Wise, W. P. Oct. 17, 1918. Addition to 130,407. Tanks provided with a covering as described in the parent Specification are formed with rounded corners b, Fig. 2, and several may be disposed within one outer covering. The tanks may be connected in pairs by external bent pipes c, Fig. 5, or by a grooved plug c, Fig. 6, fitting within a plug g, a washer f being provided. Fittings or attachments are mounted bv the aid of distancepieces n, Fig. 11, disposed between the tank and its covering.
Patent GB-1182253-A (GB)
Title: Improvements in or relating to Aqueous Compositions for Pigment Coating Permeable Substrates.
Inventor: HEATON JOHN RAYMOND DOUGLAS
IPC: D21H19/60
Filed: 1966-03-25
Abstract: 1,182,253. Coated paper. DOVERSTRAND Ltd. 23 March, 1967 [25 March, 1966], No. 13379/66. Heading B2E. [Also in Division C3] Paper is coated with a composition comprising pigment, e.g. clay, and as binder a blend of a latex of a copolymer which is non-alkalisoluble and a latex of an alkali-soluble copolymer which is either a copolymer of a major proportion of vinyl acetate and a minor proportion of an ethylenically unsaturated carboxylic acid with or without one or more other monomers, or a copolymer of butadiene, an ethylenically unsaturated carboxylic acid in an amount of at least 10% by weight of the polymer, and at least one other monomer. In the examples the binder is a mixture of a butadiene-styrene-methacrylic acid (45%)- fumaric acid (2%) copolymer with either a butadiene-styrene-itaconic acid (3%) or butadiene-methyl methacrylate-itaconic acid (3.5%) copolymer, or a mixture of vinyl acetatecrotonic acid copolymer and butadiene-styrene-fumaric acid (2%) copolymer. The compositions may be applied by air knife.
Patent GB-1282649-A (GB)
Title: Improvements in or relating to electrical curling irons
IPC: A45D1/28
Filed: 1970-03-19
Abstract: 1282649 Heated curlers CALOR 19 March 1970 [30 July 1969] 13393/70 Heading A4V [Also in Division H1] An electrical curling iron of the type disclosed in Specification 1203711 comprises a thermostat assembly including an elongate insulating support 5 on which are mounted stationary and movable contacts 10 and 11, the support 5 being mounted on a plate 6 on which is mounted a bi-metallic strip 9 in thermal communication with a heating resistor element 1. The strip 9 is in contact, at its free end, slidably mounted in a hole 16 of the support 5, the other end of the member 15 being in contact with the movable contact 11. As the temperature of the strip 9 is increased, the movable contact is urged from the stationary contact 10. The thermostat is adjusted by means of a screw assembly 20 adapted to move the stationary contact 10 relative to the movable contact 11. A printed circuit 30 is preferably employed in the handle assembly 2 and may comprise connections for a device enabling the apparatus to be used at different supply voltages and a pilot lamp.
Patent GB-828138-A (GB)
Title: Travelling jib crane
IPC: B66C23/80
Filed: 1958-04-28
Abstract: 828,138. Mobile jib cranes. STAHLUND KRANBAU G.m.b.H. April 28, 1958 [April 27, 1957], No. 13464/58. Class 78 (4). A mobile jib crane is stabilized by supports which are lowered automatically as soon as the leverage from the load exceeds a predetermined limit. As shown, supports 4 are lowered by hydraulic pressure from the cylinder of a ram 1 which is pivoted at 3 and luffs the jib 2, as soon as this pressure is sufficient to overcome the resistance of a spring 7, which resistance is varied as the jib moves by an arm 15 pivoted at 16 and connected to the ram 1 by a link 17.
Patent GB-823554-A (GB)
Title: Improvements in or relating to electrical control apparatus for machines
IPC: B30B15/14
Filed: 1956-05-02
Abstract: 823,554. Control of motors; controllers. IGRANIC ELECTRIC CO. Ltd. May 2, 1956 [May 13, 1955], No. 13533/56. Class 38 (3). [Also in Group XXXV] An electric motor 12 driving press 10 is started by closing a switch 34 to energize contactors 18, 24 and 22 in sequence. A solenoid 16 is energized to release brake 15 and to couple the press to the motor through clutch 14, by actuating " run " button 36 whereby contactor 24 is de-energized, but contactor 22 is maintained through contact 22a. Such operation actuates contactor 20 for energizing the solenoid 16. After the press-parts have moved to a position in which the operator cannot get hurt; switch 30 closes a maintaining circuit for contactor 20. Upon release of the " run " button, contactor 24 is re-energized. A short time later in the cycle of press operation, switch 28 opens to de-energize contactor 22 so that contact 22c re-establishes the maintaining circuit for contactor 18 across switch 26 which opens later. After a period, press-operated switches 26, 28 re-close in sequence, and, near the end of the cycle of press operation, switch 30 opens to deenergize contactor 20. This causes the press to be un-coupled from the motor and the brake to be applied. The arrangement is such that the press cannot be operated continuously by keeping the " run " button depressed. Moreover, failure of any of the contactors to respond in a correct manner prevents continued operation of the press. The contactor 20 is duplicated by contactor 50 to afford additional protection. Modifications of the part of the system indicated by rectangle 42 are referred to, Figs. 3-6 (not shown).
Patent GB-1108093-A (GB)
Title: Method and apparatus for producing molded articles of foamed plastics
IPC: B29C33/34
Filed: 1965-03-31
Abstract: 1,108,093. Moulding articles of foamed plastics. E. GONON. 31 March, 1965 [31 March, 1964], No. 13540/65. Heading B5A. In a process for moulding articles of foamed plastics, e.g. polystyrene the particulate material is fed in a stream of compressed air to the mould cavity which at the same time is connected to a source of vacuum, steam is then supplied to effect expansion after which cooling water is supplied, the mould is then opened and the article is ejected therefrom. The apparatus includes a two-part mould 101, Fig. 1, defining, when closed, a mould cavity 104 enclosed by chambers 102, 103 and connected thereto by apertures 105. The cavity defining mould walls are removably attached to plates P1, P2 fixed respectively to a movable upper and stationary lower platens 142, 141, Fig. 2. The upper platen 142 is connected to a pair of movable cylinders which co-operate with fixed piston rods to effect mould closing and opening. The platens are locked in closed position by a pneumatically operated latch (150, 151, Fig. 2a, not shown). The chambers 102, 103 have separate air, water, steam and vacuum connections and the mould cavity 104 is connected via pipe 106 and conduit 107 to the container 108 and via the pipe 106 and conduit 109 to a source of compressed air. A piston actuated valve 110 controls the outlet ends of the air and material conduits 109, 108. A valve actuated measured quantity supply device may be located in the feeding means. The programme control device comprises a rotary shaft 604 which is indexed by a pneumatically operated pawl and ratchet mechanism and which carries cam discs 605 each having axially displaced cam elements 606, 607 which co-operate respectively with the actuating rods 601 of fluid flow valves in the pneumatic control circuit and switches 611 of the electric control circuit. The operating sequence starts upon manual closure of a switch includes lowering of the upper platen to close the mould, the operating of the mould locking means and connecting the mould cavity to vacuum. The mould is then filled by blowing in the particulate material and steam is supplied to the lower chamber 103 until a predetermined pressure is reached whereupon steam is supplied to the chamber 102. After expansion of the material in the mould cavity cooling water is supplied to the chambers 102, 103. The mould chamber 102 is connected to the source of vacuum and the mould locking means is disengaged. The upper platen is now raised while compressed air is supplied to the chamber 103 so that the article remains in the upper mould half below which the pallet is then moved. Compressed air is then supplied to the chamber 102 to eject the article on to the pallet which is retracted.
Patent GB-933223-A (GB)
Title: Improvements relating to arrangements to guide flow of a fluid medium
IPC: F04D29/68
Filed: 1959-07-31
Abstract: 933,223. Centrifugal and transverse-flow fans and pumps. N. LAING. July 31, 1959 [Aug. 1, 1958], No. 13685/63. Divided out of 933,222. Class 110 (1). [Also in Groups XXVIII and XXXIII] In apparatus comprising a flow machine producing a first region wherein the pressure is lower than ambient pressure or than a second region of the apparatus, a hollow flow guide in the first region has a slot in its trailing portion, and ambient medium or medium from the second region is led into the interior of the guide, the arrangement being such that medium is ejected from the guide through the slot and medium flowing over the guide is given a change of direction or has a swirl imparted to it. Fig. 1 shows a centrifugal fan or pump in which swirlcreating guides 5 are mounted in a belled portion 3a of the inlet duct 3 downstream of a throttle valve 4 and supported at their inner ends by a dome-shaped deflector 5a. As shown in Fig. 2, each guide 5 is symmetrical in crosssection about a partition 6. Means are provided to connect to ambient fluid either the chambers 7 of all guides 5 or the chambers 8 whereby the difference between ambient pressure and the reduced pressure (as controlled by the throttle valve 4) in the inlet duct 3 causes ejection of ambient fluid from the guides either through slots 9 in the direction 11 or through slots 10 in the direction 12. The ejected fluid produces in co-operation with the guide profile a " jet flap " effect which in turn imposes a swirl (in one direction or the opposite direction) upon fluid entering the impeller 1. The "jet flap " effect is that already proposed for aircraft wherein air is ejected from a slot at the trailing edge of an aerofoil to form an air jet having the effect of a flap but with greatly reduced losses. The air jet changes the lift coefficient of the aerofoil and reduces losses due to flow separation on the suction side. Instead of being ambient fluid, the fluid supplied to the guides 5 may be derived from the pressure side of the fan or pump. Fig. 3 shows an elbow through which fluid flows in the direction of the arrow 32, two hollow arcuate guides 34 being pivoted to help deflect the fluid. Fluid is ejected in the direction of the arrows 35, 36 from the interior of the guides 34 and from a duct 33a at the inside of the elbow to provide a " jet flap " effect which reduces the losses which would otherwise occur. In a further embodiment, a hollow arcuate guide similar to one of the guides 34 is provided to guide the flow of fluid through the interior of the rotor of a transverse-flow machine. The pressure in the interior of the rotor is lower than the pressure of the ambient fluid supplied to the guide and is inversely related to the throughput. The amount of fluid ejected from the guide (and consequently the " jet flap " effect thereof) therefore automatically varies with the throughput.
Patent GB-419368-A (GB)
Title: Improvements in and relating to the production of metal casts from gelatine and likeheat-developable reliefs
IPC: B41C3/00
Filed: 1933-05-11
Abstract: 419,368. Casting processes. KODAK, Ltd., Kirgsway, London.-(Assignees of Murray, A. ; Kodak Park, Rochester, New York, U.S.A.) May 11, 1933, No. 13690. Convention date, May 16, 1932. [Class 83 (i).] Mould materials.-Metal casts are produced from gelatin or like heat-developable reliefs by simultaneously developing the relief on a previously-exposed surface and making the cast therefrom. The surface is preferably coated with a thin layer of a plastic lacquer. A suitable layer for the relief comprises gelatine, ferric ammonium oxalate, sodium dihydrogen phosphate and ammonium nitrate, and may be applied to paper. This layer is then coated with a lacquer consisting of cellulose nitrate, tricresyl phosphate and ethyl acetate, exposed, and developed by pouring thereover a molten alloy which simultaneously forms the metal cast. The lacquer layer may be applied at any stage before development. A resin varnish may also be used as a lacquer. Specification 390,881, [Group XX], is referred to.
Patent GB-528859-A (GB)
Title: Improvements in collapsible supporting devices for use by decorators and for like purposes
IPC: E04G7/30
Filed: 1939-05-08
Abstract: 528,859. Portable scaffold. PRATT, E. G. May 8, 1939, No. 13701. [Class 20 (ii)] A collapsable, portable, scaffold comprises end frames 1, each formed of uprights 2 joined at their lower ends by a frame member 4 and permanently interconnected at various heights by transverse bars 3, the uprights having fixed thereto upper and lower socket members 11 adapted to receive the ends 10 of upper and lower rails 9 on each side of the frames. The end frames may be provided with castors, and vertical extensions may be provided for the uprights. A propelling unit and steering arrangement may also be provided when the scaffold is of large proportions.
Patent GB-950723-A (GB)
Title: Improvements in or relating to devices for use in photography
IPC: G03B17/12
Filed: 1959-04-22
Abstract: 950,723. Camera and binocular combinations. W. E. HARKER. April 6, 1960 [April 22, 1959; Dec. 1, 1959], Nos. 13743/59 and 40804/59. Heading G2J. A device for attaching a pair of binoculars to a camera with one of the oculars in front of the camera objective comprises means for clamping said device on to an ocular and means for attaching the device on to the camera. In the embodiment shown in Fig.2 a cylinder 11 is screwed into a lever turret 14 of a camera 15 and the turret is prevented from rotating by a screw 17 passing through the cylinder and into the camera at 19. A ring 22 is held on to the cylinder by the screw 17, and a collar 24, in which the ocular 27 of a pair of binoculars is clamped by ring 25, is fixed in the ring so that the ocular 27 is in front of the camera lens 29. As shown in Fig. 5 the collar 25 may be fixed on a plate 43 which is attached to the arm of a U shaped frame 42 which is fixed at its base 41 to the camera by means of a screw 45.
Patent GB-552203-A (GB)
Title: An improved wheel attachment for prevention of wheel spin
IPC: B60C27/04
Filed: 1941-10-27
Abstract: 552,203. Vehicle wheels. BOWER, W. and RENISHAW IRON CO., Ltd. Oct. 27, 1941, No. 13794. [Class 144 (i)] An attachment for preventing slipping comprising a ring 1 with radially and angularly adjustable spokes 3 carrying strakes 5, as set forth in Specification 518,805, is provided with interchangeable sets of spacing members 10 securable to the ring by bolts 12, whereby the attachment may be suited to various types o wheel and may be secured either on the outside or inside of the wheel. The ring itself is secured to the wheel by bolts 6, 8 passing through holes 7 in the body part and holes in lugs 9 respectively, and the spacers 10 may be located between bosses 13. The spacers may have notches &c. 14 to engage over bolt heads &c. on the wheel and transmit some of the driving effort to the ring. The ring may be centred by hooked members 17, Fig. 6, adjustably clamped in the ring. The ring member may be constituted, by webs 19, Fig. 7, connecting spoke bosses 18. ribs 20.being provided as seatings for the spacing blocks 10.
Patent GB-950584-A (GB)
Title: Machine for grading articles by weight
Inventor: GIBSON ROBERT
IPC: B07C5/28
Filed: 1959-04-23
Abstract: 950,584. Sorting by weighing. WOOL INDUSTRIES RESEARCH ASSOCIATION. May 27, 1960 [April 23, 1959], No. 13807/59. Heading G1W. [Also in Division G4] Articles are sorted according to their weight by being brought one at a time to a weighing apparatus from which they are automatically discharged to the appropriate one of a series of compartments or openings in dependence upon their weight. The weigher is of the optical projection type with the window covered by a mask 15 provided with a set of transparent slits of which the number illuminated indicates the weight. The slits are traversed by a photo-electric cell 16 carried by an arm 17 once for each weighing so that the cell provides a series of current pulses which are used to set an electronic counting device L by which solenoids, controlling the flaps 12<SP>1</SP> to 12<SP>5</SP> of an inverted-V-shaped distribution shoot 11, are operated. Each article dealt with is placed either manually or mechanically on the weigher and the subsequent operations of the system follow in a manually initiated automatic sequence controlled by a motor energized on the closing of a switch. The control motor drives a cam which, after a delay sufficient to allow the weigher to come to rest and during which the count circuit L is reset to zero, acts on a pivoted lever 21, Fig. 3 (not shown) which drives the arm 17. The pulses received by the cell 16 are"shaped" by the trigger circuit K which operates the count circuit L. To prevent false indications, trigger circuit K is paralysed except during the traverse of the cell across the slits. The count circuit operates, either directly or through amplifiers 1 to 6, selector relays A to F by which the appropriate solenoids controlling the flaps 12 are operated. The scale pan, operated by a lever controlled by a further cam associated with the control motor, is then automatically tilted to discharge its contents on to the shoot 11 and the arm 17 is returned to its initial position.
Patent GB-147326-A (GB)
Title: Improvements relating to ships' side lights or sliding windows
IPC: B63B19/00
Filed: 1919-06-02
Abstract: 147,326. Dundas, D. June 2, 1919- Sliding-window opening and closing apparatus. -A ship's sliding window is operated by lazytongs c and controlled by springs g. The lazytongs are actuated by the. nut m, screw d and handle f and bevel-gear e, a collar n on the screw spindle guiding the pivot of the levers 1 in a vertical plane. The lazy-tongs are connected at one end to a fixed bracket o which has a bearing ior the screw and at the other end to the window a by links i. The window is clamped against a rubber seating by screws u, and a cushion spring v is provided on the spindle for the lowest position.
Patent GB-1512883-A (GB)
Title: Seat belt assembly for a vehicle
IPC: B60R22/34
Filed: 1976-04-06
Abstract: 1512883 Seat belt reels TOYOTA JIDOSHA KOGYO KK 6 April 1976 [11 Nov 1975] 13921/76 Heading A3V In a car seat belt assembly the lap, 9, and diagonal, 8, belts are wound up together on the same reel 12. As shown the junction of the belts passes through a ring 10a on locking tongue 11 to allow for adjustment. The belts are wound on the reel as in Fig. 5 but instead of coming out parallel to each other they may be at right angles or emerge in opposite directions. The belt locking mechanism comprises inertia sensitive pawls and ratchets 14.
Patent GB-570645-A (GB)
Title: Improvements in or relating to dividing or indexing apparatus for milling machines and like machine tools
IPC: B23Q16/04
Filed: 1943-10-27
Abstract: 570,645. Indexing. POWELL, C. B. Oct. 27, 1943, No. 13936/44. Divided out of 571,672. [Class 83 (iii)] In an indexing device for milling &c. machines having a work-holder 6 rotatably adjusted in a housing 5 and carrying an index plate 8 provided with radial slots 10 for co-operating with a spring-pressed plunger 11, locking means are provided consisting of an internally screwed ring 13 secured to the housing and co-operating with a screwed ring 15 rotatable on the holder 6. A handle 16 is insertable in any one of a number of tapped holes 17 in the ring 15, the screwed connection being left-handed so that clockwise rotation of the handle as viewed in Fig. 2 with exert axial pressure on the plate 8 and a nut 31 on the holder to lock the latter against rotation, whilst anti-clockwise rotation will release the holder and then unlatch the plunger 11 through a cam lever 18 to permit the holder to be indexed. A chuck, adaptor, &c. may be secured to a flange 7 on the holder 6 which may have a tapered bore to receive the work or a centre, mandrel, &c.
Patent GB-130006-A (GB)
Title: Improvements in or relating to Valve Gears.
Inventor: RIEDLER ALOIS
IPC: F01L7/02
Filed: 1917-09-27
Abstract: 130,006. Riedler, A. Sept. 27, 1917. Valves; valve-gear.-In engines having two or more parallel cylinders with rotary valves b operated by worms f on a shaft d at the side of the cylinders, the shaft d is arranged eccentrically in,. and supported by, a sleeve g which can be rotated to disengage the gears.