baber/WOPTO huggingface dataset:
Patent GB-1122908-A (GB)
Title: Improvements in or relating to casings for hearing aids
IPC: A47B81/00
Filed: 1966-07-01
Abstract: 1,122,908. Releasable fastenings. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 1 July, 1966 [6 July, 1965], No. 29693/66. Heading E2A. A hearing aid casing comprises a frame 1 and a lid 7 one edge portion of which is provided with a tag 11 hooked into the frame while the opposite edge portion is secured to the frame by means of a wire spring 17 extending along the relevant edge portion of the lid and having a free resilient end portion which resiliently engages between a tag 19 formed on the relevant edge portion and bent over so as to face the inner side of the lid and a tag 21 formed on the frame. In the construction shown the tag 21 formed on the frame extends in a direction opposite to the tag 19 and it is provided with a cut out so that the tag 19 can pass through the cut out when the lid 7 is removed. The tag 19 is inclined so that the pressure of the wire spring 17 draws the lid 7 towards the frame. A second lid 9 (not shown) is secured in exactly the same way as the lid 7. The spring 17 is U shaped one limb securing the lid 7 and the other limb securing the lid 9 the base portion of the spring being secured to the frame by tags 25. In a modification two separate springs are used each secured either to the tag 21 or to an additional tag adjacent the tag 19 on the lower edge portion of the lid. The springs are accessible through an opening between the lids which is normally closed by a separate detachable cover.
Patent GB-1159761-A (GB)
Title: Improvements in Dispensing Apparatus for Sub-Soil Fertilising.
Inventor: BARNES EDWARD
IPC: A01C23/02
Filed: 1967-06-28
Abstract: 1,159,761. Soil fertilizing. DIRECT NITROGEN Ltd. 30 May, 1968 [28 June, 1967], No. 29718/67. Heading A1D. A pressure pack suitable for dispensing an anhydrous nitrogenous fertilizer is provided with a valve and contains an anhydrous liquid fertilizer comprising anhydrous liquid ammonia, in which is dissolved a normally solid compound. In operation a nozzle extension 27 is pushed into soil until a disc 28 meets the ground. Further movement forces a rod 12 upward such that part 16 is closed and part 21 opened to allow the liquid fertilizer to be expelled by the vapour pressure of the fertilizer. A thimble 24 surrounds the valve and has parts 25, 26 to ensure that the liquid fertilizer will surround the valve when the canister is nearly empty through the action of the vapour pressure. The compound dissolved in the ammonia could be ammonium nitrate which could include other plant nutrients, e.g. sources of potassium, phosphorus and/or trace elements sulphur, copper, magnesium and zinc. Moreover pesticides, e.g. herbicides, could be added.
Patent GB-227804-A (GB)
Title: Improvements in or relating to bearings for propeller shafts for motor vehicles
IPC: B60K17/24
Filed: 1924-12-10
Abstract: 227,804. Etablissements de Dion- Bouton Soc. Anon. Jan. 15, 1924, [Convention date]. Axle structures.-The propeller shaft A transmitting the drive to the rear axle is supported with four degrees of freedom by a cross-member 1, 2, integral with or secured to the chassis. The shaft is an easy fit in the end 7 of the torque tube. which is carried in the bush 7<2> of a member 7<1> having trunnions 10, 11 slidable in bearings 8 of a ring 12. The latter is supported from the member 1, 2 by balls 13, 14, the upper ball 14 being carried by an adjusting screw 6. The propeller shaft is free to move longitudinally in the tube 7, laterally in the bearings 8, and to swivel about the bearings 8 and the axis y, y<1>, to accommodate the movements of the rear axle relatively to the chassis.
Patent GB-1086870-A (GB)
Title: Apparatus for detecting the presence of aerosols and the like in air
IPC: G01N21/53
Filed: 1965-07-14
Abstract: 1,086,870. Photo-electric smoke detectors. CERBERUS A. G. July 14, 1965 [July 14, 1964], No. 29934/65. Heading G1A. Apparatus for determining the presence of suspended particles in air comprises a lightabsorbing casing, a pulsed light source arranged to pulsewise illuminate the interior of the casing, and electrically light-sensitive means disposed to receive light scattered by particles suspended in the volume of air enclosed by the casing. The light sensitive means may include a light-sensitive semi-conductor element or a vacuum photo-cell. A gas-filled discharge tube 1a delivers light pulses, preferably ultraviolet, by use of a direct voltage source 3, a capacitor 9 and a resistor 2'. The light is projected through a reflection-free cylinder 5 towards a supervisory light-sensitive element 5c whose output is amplified and delivered to a capacitor 11 or other integrating element. If the light pulses cease, element 5c triggers a fault indicator. A second light-sensitive element 6 monitors the presence of particles 12 in the path of rays 5b. An outer screen 8 allows easy entry of air and prevents direct and reflected light from influencing the element 6. In a simpler apparatus Fig. 1 (not shown) the element 5c is omitted and a light source 1 is connected via a switch or contact (2) with a D. C. source. Contact (2) is periodically opened and closed, the closed time being 2 seconds or less and the open time being several seconds. In another embodiment Fig. 3 (not shown) the light source 1 is modulated at frequency f 1 , a transistorized oscillator (3') being used for voltage generation. An intermittently operated switch (2) may be used or the light source 1 may be continually connected with the oscillator (3'). The modulated light is at a frequency different from: mains frequency and harmonics thereof. Instead of a certain frequency f 1  a predetermined pattern may provide coding. In each embodiment, when the output of the amplifier 7 reaches a threshold value a signal is triggered to operate an alarm. The amplifier 7 may respond only to light of a certain frequency. The element 6 may be operative only during light emission by means of control by the switch (2), or the oscillabor (3'), the voltage source (3), the resistor 2' or the capacitor 9, thus ensuring that light entering from outside during the dark phase does not trigger error signals. The light source may be an incandescent lamp or lightemitting semi-conductor. The apparatus may be utilized in an automatic fire alarm. Alternatively it may provide an indication and/or cause switching on of ventilation devices in tunnels or garages when contamination is at a dangerous level.
Patent GB-1192667-A (GB)
Title: Production of Capsules having Opaque Walls
IPC: B01J13/10
Filed: 1968-06-24
Abstract: 1,192,667. Opaque microcapsules. NATIONAL CASH REGISTER CO. 24 June, 1968 [17 Nov., 1967], No. 30014/68. Heading B8C. Opaque microcapsules are produced by mixing an aqueous solution of a positively charged polymer with a dispersion of carbon black in an aqueous solution of a negatively charged polymer, dispersing the (water-immiscible) internal phase in the mixture and inducing coacervation of the polymers, e.g. by dilution, cooling or pH- adjustment, thereby to produce microcapsules the walls of which contain carbon black particles and are opaque. Specified negative polymers are hydrolysed ethylene-maleic anhydride copolymer, polyvinyl methyl ether-maleic anhydride copolymer and carrageenan and gelatine is the preferred positive polymer. The internal phase (capsule core) may be a vitamin oil or a dioctyl phthalate solution of a fluorescent dyestuff.
Patent GB-460542-A (GB)
Title: Improvements in and relating to scoring cards
IPC: A63F1/18
Filed: 1935-10-31
Abstract: 460,542. Scoring cards for games. PEACE, R., and PEACE, G. W. Oct. 31, 1935, No. 30074. [Class 16] A scoring-card for games, such as whist, golf, or tennis, consists of a sheet 1 (not shown) of stiff paper, thin cardboard, pasteboard, or the like provided with a number of holes or perforations, over which is secured a sheet 3 bearing rows 4 of numbers, the numbers being arranged in register with the holes in the sheet 1. The score is recorded by pressing a pointed instrument, such as a pencil point, through the appropriate number on the sheet 3. Columns may be provided wherein the scores may be written. The card shown is for the game of whist, the sheet 3 having twelve rows of holes therein, and an additional column 17 is provided with suitable printed marks 18 through which the pointed instrument may be passed if the score in any one row is repeated in the second twelve hands of the game.
Patent GB-929492-A (GB)
Title: Pulp grinding machine
IPC: B27L11/06
Filed: 1959-09-03
Abstract: 929,492. Wood grinders. NORTON CO. Sept. 3, 1959 [Sept. 9, 1958], No. 30080/59. Class 59. A wood pulp forming machine comprises a plurality of rotary conical grinding wheels 20 adapted to engage a log supported on pairs of freely rotatable rollers 13-13 to 17-17, the grinding wheels being adapted to press against the periphery of the log to effect rotation and axial feeding thereof on the supporting rollers while reducing the diameter of the log by a grinding action which pulls the fibres of the log free. The axis of rotation of each grinding wheel is inclined towards the infeed end of the machine and towards the log being ground, the infeed inclination of the axis of rotation being about one half the angle between the conical face of the wheel and the base thereof. Each grinding wheel is driven by a motor M, Fig. 2, and is rotatably supported in a vertically slidable head 21 connected to the piston-rod 24 of a piston 30 which is normally held pressed against the bottom wall of cylinder 31 by air pressure. Solution is sprayed by nozzles 50 against the surfaces of the grinding wheels to keep them clean and flow over the surface of the log to act upon the log to produce a loosening of the fibres. The supporting rollers may be smooth or grooved. The log may be held down by means of one or more resilientlysupported rollers. Specifications 845,497 and 929,493 are referred to.
Patent GB-1196305-A (GB)
Title: Strain Gage Transducer Structures
IPC: G01L1/22
Filed: 1967-06-29
Abstract: 1,196,305. Measuring force electrically. BLH ELECTRONICS, Inc. June 29, 1967 [Oct. 17, 1966], No.30099/67. Heading G1N. A force measuring apparatus e.g. for weighing or fluid pressure comprises a pair of transducers each consisting of two parallel beams joined together at their ends and carrying electrical resistance strain gauges responsive to beam stresses, each transducer being connected at one end to a fixed support and at the other end to a load carrying structure. In a conveyor load weighing arrangement, Fig.1 and 2, each transducer comprises a slotted bar 18, 19 with four strain gauges 22-25 located adjacent the slot, each transducer being secured at one end to a fixed support 15, 21 and at the other end to a load weighing platform positioned beneath a conveyer belt 12. In a modification, Fig. 11, a pair of transducers is provided by a bar 52c having slots at two spaced positions, the two outer ends being rigidly supported and the force to be measured applied to the central portion 52e. An apparatus is described, Fig. 8, which comprises two discs 47, 48 each formed with a circular groove so as to define two beams 47c, 48c each fitted with strain gauges 47d - 47f, 48d - 48f, the discs being clamped together as shown with an internal boss 49 so as to form a pair of transducers each comprising two parallel beams 47c, 48c. The discs are fixed to a support at their circumference and the force F to be measured is applied at the centre. For measuring the weight of a tank or bin 32, Fig. 5, separate beams 28 - 31 each with strain gauges 28a, 28b, 29a, 29b are secured at one end to the tank and at the other end to a fixed support 33. A similar arrangement to Fig. 5, Fig. 6 (not shown) is used to measure an externally applied force. The strain gauges are connected in an electrical bridge circuit.
Patent GB-795848-A (GB)
Title: Improvements in or relating to diaphragm chucks
IPC: B23B31/32
Filed: 1956-10-03
Abstract: 795,848. Chucks and sockets. WOODWORTH CO., N. A. Oct. 3, 1956 [Dec. 16, 1955], No. 30155/56. Class 83 (3). In a diaphragm-chuck the diaphragm 12 is annular and has a flange 20 secured to a mounting plate 10, an inner stiffening flange 18, and two annular grooves 17, 19 between and adjacent the flanges 18, 20. Angularly-spaced jaws 66 are mounted on blocks 68 fastened by screws 72 to the diaphragm. The mounting plate 10 has a dished plate 21 secured thereto by screws 24 to form a cylinder for a double-acting piston 30 connected to a face-plate 46 by screws 42 and a hub 40. The face-plate has a lip 64 and a ring 61, to transmit the motion of piston 30 to the diaphragm. A pipe 60 supplies compressed air &c. to cylinder 21 to advance the piston and diaphragm to open the jaws, Fig. 3, and release of the pressure closes the jaws due to the resilience of the diaphragm. For heavy work, pressure may be supplied through a pipe 58 to cylinder 21 to retract the piston 30 and diaphragm to increase the grip of the jaws, the fluid passing through grooves 56 in the hub 40. The piston movement is restricted by stops 32 in the plates 10, 21.
Patent GB-1428935-A (GB)
IPC: F23J1/00
Filed: 1974-07-08
Abstract: 1428935 Ash pit seal BABCOCK & WILCOX CO 8 July 1974 [11 July 1973] 30160/74 Heading F4B A seal between the bottom of a combustion chamber and an ash receptacle comprises a liquid containing trough surrounding the mouth of the ash receptacle, spaced skirts extending round the mouth of the ash receptacle and dipping into the liquid and means for supplying heated gas between two adjacent skirts. The seal may comprise three spaced skirts 86, 88, 90, extending into a trough 72 mounted on the shoulder of an ash hopper 62. The heated gas is delivered to the space between the two inner skirts 86, 88 and passes through holes in the middle skirt 88 to an outlet pipe 78 mounted on the outer skirt 90. The seal may have only two skirts, with the heated gas circulating between them, or bubbling through the liquid below them. The space between the skirts may be sealed at the bottom and the space between them maintained at above atmospheric pressure. The heat of the gas prevents the condensation of corrosive liquid on the skirts.
Patent GB-1002181-A (GB)
Title: Fungicidal preparations
IPC: A01N55/04
Filed: 1961-08-22
Abstract: A fungicidal preparation comprises 2-12 parts of the compound <FORM:1002181/A5-A6/1> in which x is an inorganic or organic group which is not bound to the tin via a carbon atom and n represents an integer equal to the valency of the group X in admixture with 1 part of manganese ethylene bisdithio carbamate.  Specified triphenyl tin compounds are the hydroxide, oxide, citrate, acetate and chloride, N-triphenyl tin-p-toluene sulphonamide and triphenyl tin-b ,b -dimethylacrylate.  Specifications 734,119, 797,073 and 1,002,182 are referred to.
Patent GB-215279-A (GB)
Title: Combined brush and polish receiving apparatus
IPC: A47L23/05
Filed: 1923-12-03
Abstract: 215,279. Briley, W. Dec. 3, 1923. Boxes combined with brushes ; contents, delivering and facilitating access to.- A two-part container adapted to enclose and hold a tin of polish and a brush, both being provided with h means respectively for allowing for usage and taking up wear, comprises open-ended casing members 1, 3, shown as adapted to screw together, the part 1 holding the brush 2 and the part 3 containing the polish tin 16. The brush head 8 has two upstanding parts s 9 formed with opposed holes in duplicate through which and also through slots in the member 1 a bolt 11 having a fixed head 12 and an adjusting nut 13 is passed. The polish tin is supported on its lid in a holder 4 provided with a half rim 19 terminating in clamp fingers 18, the holder being pressed upwardly by a spring and being mounted on a threaded plunger 20 passing slidably through a hole in the bottom of the casing and provided with a wing-nut 22 and a head 24. A tin being placed in the holder, the wing-nut is screwed down and the part 18 permitted to rise until the brush properly engages with the polish in the tin.
Patent GB-1341931-A (GB)
Title: Film containers
IPC: G03B21/32
Filed: 1972-06-28
Abstract: 1341931 Spool boxes BULRICH 28 June 1972 [28 June 1971] 30347/72 Heading G2E [Also in Division B8] A container for roll film comprises a base 1a having a skirt 1 and a lid 2a having a skirt 2b, the two skirts tapering towards the interior of the container so that they create a locking tension when they fit together. Such a positive closure also forms a good seal against ingress of oxygen, which has a deleterious effect on colour film. The base 1a has a central spigot 3 with a threaded part 4 at its free end, into which fits a screw 6 set in the lid 2a. Spigot 3 has a recess 7 at its lower end, so that several such containers can be conveniently stacked together. The  container may be made of a hard plastics material and may be circular or polygonal in shape.
Patent GB-617659-A (GB)
Title: Flexible cover for tyre repair vulcanizers and method of making
IPC: B29C70/34
Filed: 1946-10-11
Abstract: 617,659. Compound sheet materials. GENERAL TIRE & RUBBER CO. Oct. 11, 1946, No. 30408. Convention date, Dec. 7, 1945. [Class 140] [Also in Group V] A flexible cover for confining an inflatable bag that contacts exteriorly with a tyre casing to be repaired comprises a rubber body moulded to arch form, rigid bars at the ends of the body, and a reinforcing wire or cable in the body, the wire being looped over the bars and extending back and forth in a series of convolutions from one end of the body to the other. The cover is made as follows: Sheets of unvulcanized rubber 27, 28 are laid on each side of a plate 18 extending between the ends of a frame comprising end pieces 10, 14 and bars 12. Around the bars 12 are disposed tensioned springs 21. A cable C drawn from a drum 24 is attached to one end of a bar 12 and the frame is then rotated, the cable passing through a traversing guide and being wound around the bars 12, successive convolutions of the cable being laid in successive spaces between the coils of the springs 21. When a certain length has been wound on the bars the frame is stopped, the central portions of the convolutions are pressed into the rubber sheets 27, 28, and additional sheets of rubber 27a, 28a are applied on the convolutions. The cable-rubber assembly and springs are then removed from the frame and the springs are allowed to contract (see Fig. 9). Bars 29 are inserted in the end loops of the cables, the springs are removed and the skeleton is placed on a sheet of vulcanized rubber 38 which extends over the top and side walls 36 of a form 35. The sheet 38 forms the interior face of the vulcanizing cover. Strips of unvulcanized rubber 39 are placed inside the cable loops, and an outer covering 40 of unvulcanized rubber is applied over the exterior surface. A transverse straining bar 45 is attached by apertured plates 41 to the bars 29, and the vulcanizing cover is drawn tightly on to the form by means of a screw 47. The cover is then vulcanized under tension in an open oven. The ends of the cover may, in use, be anchored to a vulcanizer by means of the plates 41, or adapter hooks 52 may be used.
Patent GB-722778-A (GB)
Title: Small portable typewriter
IPC: B41J3/36
Filed: 1952-12-01
Abstract: 722,778. Typewriters. KELLER & KNAPPICH GES. Dec. 1, 1952 [Dec. 1, 1951], No. 30412/52. Class 100 (4). The type-action of a small portable typewriter comprises key-letters 1 all pivoted on a pivot pin 2 held in a support 3 in the region of a type-lever nest 21 and which, through a projection 4 engaging a cam surface 5 of a transmission lever 6, transmits a key-action to an intermediate lever 12 situated well below the keylevers 1. The upwardly extending arms 14 of the central levers 6 are short, but extend for increasing distances upwards towards the sides of the machine and are bent inwardly towards the centre. Links 16 connecting the levers 12 to the type-levers 18 are substantially parallel to one another. Equal acceleration of the typelevers 18 is arranged by suitably arranging the shapes of the projection 4, the surface 5, a projection 8 and a surface 9 on the intermediate lever 12.
Patent GB-686941-A (GB)
Title: Dynamo regulators
Inventor: WATERS ALBERT VICTOR
IPC: H02J7/22
Filed: 1950-12-13
Abstract: 686,941. Automatic voltage regulators. C. A. V., Ltd. Nov. 20, 1951 [Dec. 13, 1950], No. 30417/50. Class 38 (iv). An automatic voltage regulator of the vibrating contact type for a D.C. generator is, provided with an additional load current winding on the same core as the voltage winding. The regulator consists of an iron base-plate a, Fig. 1, carrying three iron cores b, c, d. To core c are hinged the arms g, h carrying contacts i, k, which may be opened by the voltage coil o, and the load current coil p respectively. The additional current coil q is mounted on core b. In operation, the contacts i, k, Fig. 2, are in series across the regulating resistor x, and the additional coil q is connected in series with the current coil p and is arranged to assist the voltage winding o so as to neutralize a tendency for the voltage required to open the contacts i to rise undesirably with increased load. In a modification, Fig. 3 (not shown), the coil q is connected in parallel with the coil p.
Patent GB-788762-A (GB)
Title: Method of making a wall sheathing for concrete-cored walls, and spacers therefor
IPC: E04G17/12
Filed: 1955-10-25
Abstract: 788,762. Walls. KIRCHNER, F. Oct. 25, 1955 [Nov. 20, 1954], No. 30501/55. Class 20(4) A wall sheathing for a concrete-cored wall using structural panels as lost formwork, has the panels 4 of one sheathing wall 1 staggered in height and laterally from the panels 4 of the opposite sheathing wall 2, the two walls being connected by mutually independent spacers 7 which loosely embrace with one end the edge 5 of a panel 4 of one wall 1 or 2 and pierce with the other end through the opposite panel 4 of the other wall 2 or 1, the spacer ends 12 piercing the walls then being bent over to hold the panels ready for concrete pouring. As shown, each spacer 7 has crosspieces 8, 9 spaced from the ends and a longer cross-piece 10 at one end, the crosspieces 9, 10 being loosely positioned over an edge 5 and the end 12 being passed through a hole in the opposite panel 4 till the panel rests against the stop 8, when the end 12 is bent over, preferably with a washer 11 intervening. The lowermost panel 3 of the inner wall is of less height, either ¢, <SP>1</SP>/ 3  or “ of the panels 4 and the lowest panels are positioned by a spacer 6 with the cross-pieces 8, 9 10 either bent up or broken off below the wire. The concrete is introduced from the inside between the panels 3 and 4 and after each pair of panels 4 is added, the outer wall being therefore the higher at each stage. Wooden uprights 13 may be inserted and the space between them filled with, higher strength concrete to form columns, the uprights being then removed and the space between filled with lower grade concrete.
Patent GB-618292-A (GB)
Title: Improvements in or relating to coal and like drilling machines
IPC: E21B19/24
Filed: 1946-10-14
Abstract: 618,292. Sockets. CONSOLIDATED PNEUMATIC TOOL CO., Ltd., DIXON, N. H., and MACDONALD, N. Oct. 14, 1946, No. 30536. [Class 83 (iii)] A socket for a drilling-machine is provided with a hollow extension spindle 1 which is threaded at 12 for connection to the drive spindle of the machine and at 13 to receive the chuck which is formed with dogs 3 to engage the flutes on the drill rod, bearing collars 6 being formed integrally with the spindle 1 for supporting a sleeve 5 which is formed as a hand grip and has a check shoulder 7. The space between the bearing collars acts as a grease reservoir for lubricating the sleeve 5. In a modification, the sleeve has rubber or like material bonded to the outside thereof.