baber/WOPTO huggingface dataset:
Patent GB-886665-A (GB)
Title: Improvements in or relating to decoding devices in cyclically operated character recording machines
Filed: 1959-01-30
Abstract: 886,665. Circuits employing bi-stable magnetic elements. COMPAGNIE DES MACHINES BULL. Jan. 30, 1959 [Feb. 11, 1958], No. 3403/59. Class 40 (9). [Also in Group XVI] The selective operation of a hammer to effect impression from a continuously rotating typewheel is controlled by a bi-stable magnetic element in dependence on character signals read from perforated or marked records and which are distributed in at least two successive groups in accordance with a combination coding system. The second group of signals returns the magnetic element to its initial position, after which further signals effect operation of a recoding member. A square waveform is issued from a pulse distributer 11 and is fed to the primary winding 10a of a magnetic core having a rectangular hysteresis loop. This induces two pulses of opposite polarity into the secondary winding 10b which succeed one another in time at the beginning and the end of the energizing pulse in winding 10a. The secondary winding is connected through two rectifiers 12, 13, two switch contacts 14a, 15a, a pulse counting magnetic core 16 and a hammer actuating winding 20. The triggering pulse for the control of the hammer 20 is obtained by succeeding pulses after the core has returned to its zero level: there is thus no need to calibrate the core. The contacts 14a, 15a are closed by cam-operated relays 14, 15 at certain points in a print cycle by cam contacts 17, 18. Further cam contacts 19, 25 also control the pulse emitting device so that the distributer emits at each cycle a pulse from point 9 to 8 of a record card, two pulses from point 8 to 7, three pulses from point 7 to point 6, and six pulses from point 6 to point 5, and between each point until point 14. In an example, wherein a punch card contains perforations at points 9, 7 and 3, the preparatory perforations 9, 7 will supply a single pulse and then three pulses of magnetization in the positive sense to the core 16. Then perforation 3 brings about six pulses in the operative direction, and upon the receipt of the fifth pulse, the core 16 is reset to zero and the striking pulse is generated to operate the hammer to print the character which at that time is passing the printing position. Specifications 767,005 and 780,884 are referred to.
Patent GB-606101-A (GB)
Title: Improvements relating to decorative veneers and building materials and to methods ofproducing same
IPC: B44C5/04
Filed: 1943-03-02
Abstract: 606.101. Compound sheet materials. FRASER. R. P. March 2. 1943, No. 3415. [Class 140] Decorative sheet material consists of at least two thin flexible sheets or films and at least one intervening layer of parallel, spaced, spun glass threads, the facing sheet or film being tinted and transparent or translucent and the backing sheet being similar, or opaque. The glass threads may be adhesively united to the surfaces of the film layers, and the film layers then bonded to one another and, if desired, to a backing such as plywood, glass, metal, millboard, or wall board. Thermoplastic films such as cellulose acetate may be united by heat and pressure, regenerated cellulose films require the use of a transparent adhesive or an interposed film of thermoplastic material. Several transparent films, differently tinted, may be superposed, and the glass threads carried by the different films may run parallel or cross. The surface film may be made glossy or matt, either before uniting with the other layers, or by uniting it with them between rough or smooth surfaces, e.g. felt, cloth, or polished steel. Portions of one layer may be punched or cut out to give a pattern, or the spun glass threads may be -coloured. The surface of a laminated building slab so made may be temporarily protected by a removable sheet of paper.
Patent GB-584493-A (GB)
Title: Brake or clutch
IPC: F16D65/02
Filed: 1944-02-24
Abstract: 584,493. Clutches. ELLIS, L. S. E. (General Tire and Rubber Co.). Feb. 24, 1944, No. 3463. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 29, 1944.] [Class 80 (ii)] [Also in Group XXXIV] In a heavy-duty clutch between aligned shafts 106, 107 the shaft 106 carries a drum 108 having conical friction surfaces 109, 110 co-operating with conical shoes 114 slidable axially relatively to the torque disc which is splined on the shaft 107 through the centre of which the pressure fluid is supplied. The torque disc is in two parts, the outer annular part being coupled with the inner hub part by rubber discs 131 bolted together and to the torque disc parts by bolts 133, 134. Spacing washers 132a are provided to permit flexing of the discs 131 when they take up shock. The pins 113 are received in recesses 116 in the shoes 114, and U-shaped springs 117 in the recesses provide a yielding connection between the pins and the shoes. The pressure fluid pipe 138 is flexible and discharges into a chamber communicating with the inflatable annuli 122.
Patent GB-591829-A (GB)
Title: Improvements in or relating to keyless watches
IPC: G04B29/00
Filed: 1945-02-12
Abstract: 591,829. Watches. CHIFFELLE, E. A. Feb. 12, 1945. No. 3517. Convention date, Jan. 5, 1944. [Class 139] A watch comprises winding and hand-setting mechanisms which are actuated by means of a slidable stem arranged at right angles to the plane of the dial and movable from the normal position of rest against the influence of a yielding control, wherein the stem is axially bored to receive a pin formed integral with a frame plate and arranged to act as a guide for the stem in the sliding movement thereof. As shown in Fig. 1 the winding stem 21 is perpendicular to the dial 20 and has a knob 25 provided in a recess 30 in the back 34 of the casing. The stem 21 is axially bored at 23 to receive a guide pin 24 integral with a frame plate 5 and has at the top end a pinion 22 which is normally held, by spring 27, in engagement with a wheel 31 for winding purposes In order to set the watch the stem 21 is pulled out against the spring 27 until the pinion 22 meshes with a wheel 32 which drives the minute wheel 33. The three-quarter frame plate 7 of the watch is formed with an opening in. which is fitted a bridge 6 which has a journal 4 to receive one end of an arbor 1 of a barrel 2, the other end of which arbor 1 is disposed in a journal 3 in the frame plate 5. The barrel bridge 6 comprises a disc 16, Fig. 2, formed integrally with a lug 17. bent downwardly and outwardly and secured by a screw to the frame plate 5. The three-quarter plate 7 is formed of a single thickness of thin metal and is provided with ribs for increased rigidity and has downwardly extending lugs 15 bearing against the frame plate 5.
Patent GB-1303511-A (GB)
IPC: G03B27/73
Filed: 1970-01-26
Abstract: 1303511 Photographic printing AGFAGEVAERT A G 26 Jan 1970 [29 Jan 1969] 3590/70 Heading G2A The exposure of photographic monochromatic material whose graduation is different for two different colours is controlled by apparatus which includes two adjustable timers 19,20 which control the insertion of two colour filters into the path of the printing light beam, so that when there is a difference between the periods set by the two timers the longer period controls the overall exposure time and the shorter period controls the insertion of the associated filter for a period corresponding to the difference between the shorter period and the longer period, the timers also being arranged so that their timing periods either commence or terminate together. The insertion of a filter changes the time scale of the other timer so as to compensate for the absorption by the inserted filter of the colour that is blocked by the other filter. Each timer has a capacitor 27 which is charged through transistor 28 at a rate determined by the setting of potentiometer sliders 13, 17, 23 so as to increase the current flowing through resistor 31. When this current equals the current flow through resistor 34, which is adjusted by potentiometer slider 35, comparison device 32 switches through to supply relay 38 with current. An electromagnet is then energised to insert a filter into the printing light beam and a contact 38a disconnects potentiometer 42 from the other timer and substitutes a fixed potential divider into its charging circuit to thus compensate its timing action. Potentiometer 13 is set according to the maximum or minimum density of the original, potentiometers 15, 16 are set according to the sensitivity of the print material to the two colours used for printing, potentiometers 21, 42 are set to allow for absorption in the respective filters for light blocked by the other filter, and potentiometers 33, 37 to correspond to the differences between the maximum and minimum original density, i.e. the contrast range of the original. A shutter is inserted into the printing light beam when both relays 38 and 24 have been energised.
Patent GB-675197-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J3/02
Filed: 1949-02-10
Abstract: 675,197. Electron discharge apparatus. GENERAL ELECTRIC CO., Ltd., and WARREN, G. W. Feb. 6, 1950 [Feb. 10, 1949], No. 3745/49. Class 39 (i). An electron discharge device, other than a thermionic valve, using a substantially rectilinear beam of electrons, for instance a cathoderay tube or a linear accelerator, includes a cathode, an anode, and an auxiliary electrode which extends from the vicinity of the cathode towards the anode and through the interior of which electrons can pass from the cathode to the anode, the auxiliary electrode alone or the auxiliary electrode and a further electrode surrounding it being so formed that with a unidirectional potential positive to the cathode applied to the auxiliary electrode and/or the further electrode, the electric field within the interior of the auxiliary electrode is such that under space charge limited conditions the electrons passing through the interior are maintained in a substantially rectilinear beam. It is shown mathematically that a sufficient condition to meet this requirement is that the potential in the interior of the auxiliary electrode should vary as x <SP>4</SP>/ 3 , where x is the dis - tance from the cathode along the axis. This may be achieved by making the resistance per unit length of the auxiliary electrode vary as x <SP>1</SP>/ 3'  either by varying the cross-section of a tubular member or by using a coil with a pitch proportional to x - - <SP>1</SP>/ 3'  and passing a current through it. Another method is to use an equipotential coil as the auxiliary electrode and surround it with a hollow open-ended conducting member; it is shown mathematically that the pitch of the coil, its radius, the radius of its wire, the radius of the conducting member, and the potentials of the two electrodes may be so arranged that the beam is rectilinear.
Patent GB-959884-A (GB)
Title: Solderless electrical connection
IPC: H02G7/05
Filed: 1963-01-30
Abstract: 959,884. Cartridge-actuated tools. AMP Inc. Jan. 30, 1963 [Feb. 9, 1962], No. 3754/63. Heading B4C. [Also in Division H2] An explosively-driven tool, Fig. 4, for wedging two cables 33 into a connector 5, comprises a connector-holding tool head 9 pivoted at 10 to receive connector 5 and then locked by a latch 16, and a tool body 11 including a ram housing 19 in which a ram 20 moves under the action of an explosive charge contained in a cartridge case 34 to drive a wedge 6 between the cables 33. Ram 20 has a plunger portion 25 with a firing pin 30 at its free end which extends into a breech member 26 mounted by a peripheral flange 27 between ram housing 19 and a screw-on collar 29. The breech member 26 contains cartridge case 34 holding explosive 38 beneath a plug 39 in which is disposed a percussion cap 40, and is closed at the bottom end by a screw cap 31 having a spike 32 which pierces the closed end of cartridge case 34. When cap 31 is struck, firing-pin 30 detonates percussion cap 40 and plug 39 is driven along the case 34 forcing ram 30 upwardly. At the end of the stroke, plug 39 is fused to case 34 so that the gases cannot escape into breech member 26, and these gases are finally released by unscrewing cap 31 and withdrawing spike 32. Another tool, Fig. 9, for use with a modified connector (see Division H2) having two wedges which are driven inwardly of the connector in opposite directions, has a similar tool body to that above, and a modified tool head 48 with two toggle driving arms 62 pivotally connected to links 57 which are themselves pivotally connected to a member 55 sliding in a slot 58 under the action of a ram 50. Specifications 873,192 and 956,227 are referred to.
Patent GB-1161861-A (GB)
Title: Improvements in or relating to Tubular Film Extrusion.
IPC: B29C48/10
Filed: 1968-01-24
Abstract: 1,161,861. Extrusion apparatus for making tubular films. FMC CORP. 24 Jan., 1968 [2 May, 1967], No. 3772/68. Heading B5B. An apparatus for making tubular blown films by melt extruding thermoplastic material and including an extruder, a centre-feed die having an annular extrusion orifice and a feed elbow positioned between the extruder and the die is characterized in that the elbow has a flow passage including frusto-conical inlet and outlet sections and a 90 degree angular section extending between the smaller ends of the frustoconical sections. The diameter of the angular section may be from 25 to 95%, preferably from 30 to 75% of the diameter of the elbow flow passage at its inlet and outlet ends and may be of uniform size throughout its length. The radius of curvature of the angular section may be from 1 to 5 times, preferably 2 to 4 times, its diameter. The frusto-conical sections of the elbow flow passage may each have included angles of from 5 degrees to 60 degrees, preferably 7 degrees to 30 degrees. As shown in the drawing, a conventional extruder having a barrel 7 and a feed screw 9 has an adapter 11 bolted at 13 to the barrel 7, with a breaker plate 15 positioned between the adapter and the barrel in the usual manner. A feed elbow 17 is bolted to the adapter 11 and on the opposite end of the elbow is mounted a conventional centre-feed annular die 21 having an outer sleeve 23 and a mandrel 25. Spacers 27 are provided for supporting the mandrel in desired position relative to sleeve 23. A conduit 29 extends through the mandrel 25, one of the spacers 27 and the sleeve 23 and is connected by a pipe 31 to a source of air or other gas under pressure. Molten thermoplastic material is fed by the extruder through the flow passage 33 of the feed elbow 17 to the die 21 and is extruded therefrom as a tubular film 37 which is inflated by air or other gas under pressure delivered by the pipe 31. As in conventional apparatus, a ring 37 is provided for directing a stream of cool air or other gas on to the film as it issues from the die 21. Nip rolls 39 and 41 are provided for collapsing the tubular film 35 and withdrawing the film from the die in the usual manner. The elbow passage 33 includes frusto-conical inlet and outlet sections 43 and 45 connected at their smaller ends by a 90 degree angular section 47.
Patent GB-1139476-A (GB)
Title: Improvements in or relating to the manufacture of curved surfaces
Inventor: SUCKLING HAROLD FREDERICK
IPC: B22C9/00
Filed: 1967-01-25
Abstract: 1,139,476. Making curved metal surfaces; jointing. MARCONI CO. Ltd. 9 Oct., 1967 [25 Jan., 1967], No. 3831/67. Headings B3A and B3V. An accurately curved metal surface is formed on a member 1 by a process which includes first cutting a surface of the member 1 to form steps 2, the corners 3 of which lie in a predetermined curved shape; filling in the steps 2 with a setting or hardening adhesive 4, and pressing over and covering the adhesive filled steps with a flexible metal sheet 5, the underside of which is in contact with the corners 3 and which is held in place by the adhesive, the sheet 5 being of such thickness that the upper side 6 lies in the desired curved surface. The steps 2 may be cut with a milling cutter and may be overfilled with adhesive, excess adhesive being removed by sliding the sheet into position so that surplus adhesive exudes endwise and can be wiped off. The sheet 5 is then pressed against the member 1 by a sheet of resilient material, e.g. rubber, placed in contact with the upper surface of the sheet 5. The invention may be applied to the manufacture of walls for waveguides, moulds and routing and profile-turning templates.
Patent GB-657217-A (GB)
Title: Improvements in resilient telescopic devices
IPC: F16F5/00
Filed: 1949-02-14
Abstract: 657,217. Liquid-spring suspension devices. DOWTY EQUIPMENT, Ltd., SHAWBROOK, H., and BINGHAM, A. E. Feb. 14, 1949, No. 4000. [Class 108(iii)] In a liquid-spring type resilient telescopic device, which may be of the kind described, in Specifications 560,047 and 560,048, a proportion of the liquid medium comprises a liquid which expands on freezing, and has a freezing point within the normal operating temperature range, and at all times fills a chamber of variable volume which separates it from the remainder of the liquid. Alternatively the liquid medium may comprise two or more different liquids in two or more respective chambers. As shown in Fig. 5, a plunger 12 with or without a damping head operates in a cylinder 11 to compress resiliently, liquid therein. For an operative temperature range extending to -45‹C. the liquid within the swept volume of the cylinder may be D.T.D. 585 having a freezing point of -65‹C. A metallic bellows 21 has two compartments for two respective liquids 22, 23 having different freezing points within the operating temperature range of the device. The liquids 22, 23 may be water. or water mixed with a small percentage of either alcohol or glycerine. The compartments are filled under vacuum to ensure absence of air and are sealed by pinching and brazing at 24. In another construction, Fig. 2 (not shown), a single compartment, only, is provided within the bellows, its volume being one third of the total liquid capacity of the device. The Specification includes in respect of the latter construction a table showing percentage changes of volume at different operating temperatures using one of five alternative liquids in the variable volume chamber. In another construction, Fig. 3 (not shown), the variable volume chamber is defined by a floating piston and the end-portion of the main cylinder. In a further construction, Fig. 4 (not shown), the chamber is in the form of a flexible (e.g. rubber) bag or ball retained in the inner end of the main cylinder by an open-work grating. The chamber may alternatively be in the form of an annular compartment surrounding the main cylinder or it may be attached to the damping head of the plunger 12.
Patent GB-720592-A (GB)
Title: Improvements in or relating to pressure transmitting rolls and to load gauges therefor
Inventor: WHITWELL ARTHUR LESLIE
IPC: G08B21/00
Filed: 1951-02-19
Abstract: 720,592. Electric measuring systems. BOULTON PAUL AIRCRAFT, Ltd. Feb. 19, 1952 [Feb. 19, 1951], No. 4030/51. Class 40(1) Apparatus for measuring the pressure on a roll 1, Fig. 1, used e.g. for pressing strip metal 6, comprises a transformer 17, Fig. 3, mounted in the support 2 above the bearings and consisting of a primary winding 22, two equal secondary windings 23, 24 and a slidable core 25, fixed to a non- magnetic rod 27 displaceable by the deformation of the roll 1 with application of pressure. The secondary windings 23, 24 are connected in-series opposition so that initially their output voltages are balanced, but with application of pressure to roll 1 via rolls 4, 5, the roll 1 is slightly displaced and the movement is transmitted via rod 27 to the core 25, whereby the coupling between the transformer windings is altered, and a signal is obtained from windings 23, 24 which is propor-. tional to the pressure. The apparatus may be duplicated at the other end bearing in support 2 to compare the pressures at each end of the roll 1, and may also be used to operate a relay to stop operation at a predetermined maximum pressure.
Patent GB-756930-A (GB)
Title: Improvements in and relating to the manufacture of pegs for use in supporting a tyreinflator on a bicycle frame
Inventor: EVERILL ARTHUR ROLAND
IPC: B62J11/02
Filed: 1953-02-13
Abstract: 756,930. Making cycles. CYCLO GEAR CO., Ltd. April 30, 1954 [Feb. 13, 1953], No. 4052/53. Class 83 (2). [Also in Group XXXI] A method of manufacturing pegs 2 for use in supporting a tyre inflator on a bicycle frame consists in turning a bar 11 of square section in a lathe and parting off to form a base 3, a shank 4 and a head 5, at least the head retaining the section of the bar so that its corners 10 provide projections any one of which may be engaged by a standard tyre inflator. The head of the peg is radiused at 13 to provide a neat finish. The pegs may also be produced by a turning operation on a rod having the crosssection of an equilateral or isosceles triangle. The face 15 of the base 3 may be pressed to form a concave surface for seating against the frame 1 of the bicycle. The bar may also be machined so that an axial peg projects from a face 15 to be received in a hole in the frame tube 1.
Patent GB-1164432-A (GB)
Title: Methods of and Apparatus for Converting Radiant Energy Patterns into Sound
Inventor: COOK MELVIN SEYMOUR
IPC: G10L15/24
Filed: 1966-01-29
Abstract: 1,164,432. Pattern read-out. M. S. COOK. 27 Jan., 1967 [29 Jan., 1966], No. 4081/66. Heading G4R. [Also in Divisions G2 and H4] A method of converting a significant radiant energy pattern, preferably a holographic pattern, into a characteristic sound includes the steps of forming a radiant energy pattern significant of an object 1, producing a corresponding recording pattern of electrostatic charge (or of magnetic dipoles) in a recording layer which is within the influence of an electric (or magnetic) field generating means, and then causing the field generating means to change the field so as to act upon the recording pattern and cause an associated diaphragm 5 to vibrate in a manner producing sound waves characteristic of said recording pattern. In apparatus for carrying out this method, the object 1 is illuminated by radiation from a laser 2, a shutter 4 being provided to interrupt the radiation if a continuous laser is used. A holographic interference pattern is recorded as a pattern of magnetic dipoles in a magnetically retentive layer on the surface of the diaphragm, or as a pattern of greater or lesser electrostatic charge on a photo conductive insulating layer 5C which is charged simultaneously with exposure. The layer 5C is spaced from a flexible sheet 5A by an electrically conductive layer 5B, made of e.g. gold, the members 5A- 5C forming the diaphragm 5. A change in electrical potential is applied to an electrode 7 after the charge pattern has been formed, thereby causing the diaphragm to vibrate. The sound waves so generated are detected by a microphone 10 and fed to a loud-speaker 12, the sound emitted being characteristic of the object 1.
Patent GB-103900-A (GB)
Title: Improvements in or relating to Knives.
Inventor: DUNKLEY THOMAS BENNETT
IPC: A47G21/06
Filed: 1916-03-22
Abstract: 103,900. Dunkley, T. B. March 22, 1916. Addition to 7131/15, [Class 30, Cutlery]. Spoons.-A food-cutting implement, which may be of the kind described in the parent Specification, is provided with a spoon screwed into place or hinged as shown.