baber/WOPTO huggingface dataset:
Patent GB-933694-A (GB)
Title: Improvements in or relating to the manufacture of laminates
IPC: B32B27/00
Filed: 1960-01-20
Abstract: 933,694. Laminates and laminating. ARMORIDE Ltd. Jan. 20, 1960 [Jan. 22, 1959], No. 2065/60. Class 140. Laminates, particularly of paper, are produced continuously by impregnating webs of material with a curable resin, e.g. a polyester or a melamine resin, forming them into rolls and allowing them to mature whilst being rotated, e.g. at or near room temperature, rotatably mounting a number of the rolls and drawing the webs therefrom, impregnating the webs while spaced apart with curable resin, pressing them in laminate form against a heated drum, and applying a removable covering layer to the laminate and passing it therewith around the drum during partial or complete curing of the resin. As shown, Fig. 1, a web of paper from a roll 5 is passed around heated rolls 7, 8, 9, being pressed to the roll 8 by a roll 10, and is impregnated with resin in a bath 12 and rolled up at 15. Excess resin is removed by adjustably spaced rolls 13. Rolls such as 15 are rotatably mounted in a frame on spindles maintained in rotation by a common driving means. After maturing, the rolls are transferred to the laminating apparatus of Fig. 3 in which rolls 1 and 2 are of paper, roll 3 may be of decorative paper, and roll 4 comprises a thin surfacing paper which becomes transparent in the laminate. Webs from rolls 1-3 are coated individually with polyester resin by rollers 32-34 and then impregnated with additional resin, whilst being held separated by rollers such as 35, in a bath 31. The web from roll 4 is passed in succession through pairs of coating rollers 18, 19, provided with cheek plates 20 to prevent spillage, is dried and heated by an infra-red or other heater 22 and coated with resin by a roller 25 in a bath 26 having means 27 for removing excess coating material. The web is then again heated by apparatus 24 and coated at 28 and passed to the bath 31. The four webs are superposed in bath 31 by a roller 30 dipping therein and pass between excess resin-removing rolls 38 to a heated drum 36. A web of cover material 39, for example of cellulosic material, is drawn from a roll 40 and applied over the paper layers by a pressure roll 37. During its passage around the drum the laminate may be externally heated by infra-red or other heaters 42. The laminate leaving the drum passes around a roller 41 through an oven 44 and over a roller 45 for further treatments. The cover layer 39 may be removed at 43 or may be retained until a later stage of treatment ; after its removal the surface of the laminate covered by it (the back surface) may be roughened, e.g. by abrading, to assist its adhesion to a substrate.
Patent GB-255337-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B23/08
Filed: 1926-01-25
Abstract: 255,337. Fornaca, G. Jan. 25, 1926. Cylinders, combustion chambers of, and arrangement of igniters in. - To whirl the charge and concentrate it near the sparking plug 4, the face of the piston is formed with a cvlindrical bevel 6 having an axis at right angles to the plane passing through the cylinder axis and the sparking-plug. If the cylinder has two diametrically opposite sparking plugs 4, 4<1>, two cylindrical surfaces are formed with a rib 8 between them.
Patent GB-223106-A (GB)
Title: An improved non-conductive handle for hollow-ware
IPC: A47J45/08
Filed: 1924-01-28
Abstract: 223,106. Jones, F. W., and Jones, W. H., (trading as Chester Electro-Plating Co.). Jan. 28 1924. Handles.- Non-conductive handles of vulcanite, fibre, or other suitable material are secured to teapots or like vessels by mounting firmly on the vessel outwardy-projecting members screw-threaded either internally or externally, passing the handle, which is formed with corresponding holes, over the projecting members, and securing it thereto by the aid of nuts or bolts. The Figure shows a C-shaped handle 4 secured to internally-threaded pins 1 projecting from the wall 2 of a metal teapot by means of bolts 6 passed into countersunk perforations 5 in the handle and screwed up tightly into the pins by a tool engaged with internal squared sockets 9 formed in the heads of the bolts. In the case of metal vessels the projecting members are soldered, riveted, or otherwise secured in place, but for china or like vessels, conical-headed screwed pins, the heads of which are passed through washers of jointing material, are passed from the inside through countersunk holes in the wall of the vessel, liquid-tight joints being thus established.
Patent GB-524149-A (GB)
Title: An improved method and mechanism for finishing flat surfaces
IPC: B23C3/00
Filed: 1939-01-23
Abstract: 524,149. Milling machines and cutters. NATIONAL BROACH & MACHINE CO. Jan. 23, 1939, No. 2210. Convention date, May 2, 1938. [Class 83 (iii)] In a method of and machine for milling flat surfaces, a frusto-conical cutter, having the inclination of the cone generator to a transverse plane exceeding 10 degrees is placed in line contact with the surface which is fed relatively to the cutter to distribute the cut. In one form the frusto-conical cutter 17 is mounted on a milling-arbor 16 and the work 11 is mounted in a fixture 18 on a table 12 which is traversed to carry the work past the cutter to finish the work surface 10. If the work surface is wider than the length of the cutting-edges 17a, the work is adjusted to bring another part of the surface into contact with the cutter. In a modification, the cutting-edges are inclined to generators of the cutter surface so that the teeth act progressively and give a shearing action. In another modification, the cutter arbor is inclined to the horizontal and the top surface of the work is horizontal. In a further modification, Fig. 4, the cutter spindle 33, driven from change speed gearing, is inclined to a plane perpendicular to the direction of the movement of the work 11.
Patent GB-1049973-A (GB)
Title: Improvements in or relating to massage vibrators
Inventor: CHEUNG CHAN
IPC: A61H9/00
Filed: 1964-06-30
Abstract: The subject-matter of this Specification is identical with that described in Specification 1,049,972 but the claims are concerned with an electrically-operated massage vibrator carrying a particular applicator member.
Patent GB-393535-A (GB)
Title: An improved cigar or like lighter
IPC: F23Q7/20
Filed: 1933-01-24
Abstract: 393,535. Driving dynamos. TIENE, N. W. VAN, 18, Willemstraat, Heerlen, Holland. Jan. 24, 1933, No. 2243. Convention date, Jan. 26, 1932. [Class 35.] The dynamo 2 of an electric cigar &c. lighter is operated by pulling out a band 8 wound on a drum 7 on a shaft 6 connected through gearing 4, 5 to the rotor. The drum is connected by a freewheel device to the shaft 6 and contains a spring for rewinding the band. The rotor is construc. ted as a flywheel or a separate flywheel is provided on the shaft 3.
Patent GB-596439-A (GB)
Title: Improvements in or relating to high-frequency discriminators
IPC: H01P7/04
Filed: 1945-01-30
Abstract: 596,439. Frequency modulation. PATELHOLD PATENTVERWERTUNGS- & ELEKTRO-HOLDING AKT.-GES. Jan. 30, 1945, No. 2381. Convention date, Nov. 6, 1943. [Class 40 (v)] [Also in Group XXXV] In a discriminator comprising -an oscillatory. circuit tuned to the mean frequency of the input wave and two mutually connected rectifiers coupled thereto for producing a control voltage varying in magnitude and sense dependent on the magnitude and sense of the frequency deviation of the input wave, a cavity resonator is used as the oscillatory circuit. Fig. 1 shows a known type of cavity resonator a having a condenser with fixed or adjustable coatings b1, b2 located therein. The input voltage V1 is applied over a coupling loop c and the output voltage V2 is taken from coupling loops d1, d2 and applied in phase opposition to the anodes of diodes e, f. The input voltage V1 is also applied at g in like phase to the diodes, so that the voltages -V1+V2 and V1-V2 are rectified in the respective diodes, the rectified outputs U1, U2 across the load resistors being opposed to give the difference control voltage U0 which varies in magnitude and sense according to the detuning of the input wave V, relative to the resonator frequency. By appropriate choice of the time constants of the rectifier circuits the discriminator may be used as a demodulator for frequency modulated waves or for A.F.C. The cavity resonator may alternatively consist of two hollow hemispheres Fig. 3 (not shown), the abutting edges of which form the resonator capacitance. Capacitative coupling is used in this case. In another arrangement a cavity resonator of -length #/2 is used. The leads to and from the resonator may be selected as to length to compensate for any abnormal phase displacement due to the resonator.
Patent GB-905745-A (GB)
Title: Improvements in or relating to measuring calipers
IPC: G01B3/20
Filed: 1961-01-20
Abstract: 905,745. Calliper gauges. NUMATA, Y. Jan. 20, 1961 [June 29, 1960], No. 2403/61. Class 106 (2). The measuring scale 12 of a calliper gauge is slidable with respect to the beam 1 carrying the fixed and slidable jaw member 2, 3, and can be driven against spring loading 13 in the fixedjaw end of the caliper by calibrated screw means 8, 9, at the far end of the beam 1, cooperating with a fixed zero-mark 6, whereby a fractional scale division may be measured by moving the measuring scale so as to bring a reference mark 4 on the slidable jaw 3 into alignment with a neighbouring scale mark.
Patent GB-680140-A (GB)
Title: Improvements in and relating to high frequency electric heating apparatus
IPC: H05B6/36
Filed: 1950-01-30
Abstract: 680,140. Induction heating. GENERAL ELECTRIC CO., Ltd., MARTIN, D. E., and DAWKINS, R. A. Jan. 30, 1951 [Jan. 30, 1950], No. 2406/50. Class 39(iii) Detachable workloops are connected to a high frequency transformer secondary winding through connections which include cooling fluid connections, so that both electrical and cooling fluid ccnnections are effected simultaneously. Blocks 17, secured to mutually insulated flanges 14 of a single turn transformer secondary winding, are channelled to provide contact surfaces 23 to which blocks 21, secured to a workloop 20, are bolted. Cooling water pipes 30 protrude from the blocks 17, and their ends 31 fit within sockets in the blocks 21, and water is thereby circulated around the workloop. Washers 32 surround the pipe ends to prevent leakage, and the block contact surfaces may be silver-plated.
Patent GB-305168-A (GB)
Title: A method of and apparatus for recording, by means of cathode rays, rapidly occurringphenomena
IPC: H01J31/12
Filed: 1929-01-24
Abstract: 305,168. Vereinigte Gl³hlampen und Electricitõts Akt.-Ges. Feb. 1, 1928, [Convention date]. Vacuum tubes.-A cathode-ray tube has an anode A placed near the receiving screen E, an incandescent cathode K, focus tube B, diaphragm D, and, in one modification, a control grid R. The proximity of anode A to screen E serves to prevent positive charges reaching the screen, upon which the electrostatic charges produced by the cathode rays are used to produce visible or audible records of transitory electrical phenomena. The anode may be of gauze as shown in Fig. 2 or, where an image of the gauze is inadmissible, may be annular, as in Fig. 3. Diaphragm D may act as an auxiliary anode by the application of a potential. The cathode rays whose direction and intensity may be modified in any known manner, produce negative charges on the screen which are recorded by dusting on to the screen fine positively electrified powder which adheres to the charged areas, and may be photographed or fixed by covering with varnish. An additional removable screen may be used. Alternatively, a negatively electrified powder may cover the screen, and be repelled where the screen becomes charged on to a sheet coated with an adhesive. The charges on the screen may be dissipated by application of a flame or R÷ntgen rays or by heating a metallic wire inside the tube.
Patent GB-606703-A (GB)
Title: Improvements in or relating to electron discharge tube sockets
IPC: H01R33/76
Filed: 1946-01-25
Abstract: 606,703. Holders for discharge tubes. RAYTHEON MANUFACTURING CO. Jan. 25, 1946, No. 2486. Convention date, Feb. 28, 1945. [Class 38 (i)] A socket for a small electron discharge tube 2 comprises an insulating body 12 having aligned openings 10 in its upper face to receive the resilient aligned lead-in wires 6 of the tube. Located in each opening is a contact 14 bent up from resilient strip, e.g. beryllium copper to form contact arms 16, 18 and a soldering lug 24 projecting through a hole 26 in the base of the body. Adjacent holes 26 are staggered with respect to each other, Fig. 4. Each conductor has a flat portion 22 abutting the bottom face 42 of each opening 10 and each lug 24 is bent through 90 degrees to form a shoulder 40 to retain said conductor in position. Polarizing marks 46 are provided on the tube and socket.
Patent GB-437352-A (GB)
Title: Improvements in and relating to methods of grinding, polishing and the like
Filed: 1934-01-24
Abstract: 437,352. Grinding. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT VORM. ROESSLER, 7, Weissfrauenstrasse, Frankforton-Main, Germany.-(Assignees of Krug, C. ; 4, Cretzschmarstrasse, Frankfort-on-Main, Germany) Jan. 24, 1934, Nos. 2521 and 2522. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 25, 1934]. [Class 60] A method of grinding is stated to comprise the use of grinding-members consisting of corundum or silicon carbide and a binding-medium, respectively having a specific gravity below 1À9 kg. per cdm. or 1À7 kg. per cdm., and driving the member at peripheral speeds exceeding 35 metres per second, for example, 45 to 90 metres per second. When the binding-medium is an artificial resin, the specific gravities do not exceed about 1À16 kg. per cdm. and 1À07 kg. per cdm. respectively, and when a ceramic binding- medium is employed, the specific gravities do not exceed about 1À8 kg. per cdm. and 1À15 kg. per cdm. respectively. The grinding-members may incorporate hollow glass beads.
Patent GB-342509-A (GB)
Title: Improvements in gas heaters
IPC: F24C3/04
Filed: 1930-01-24
Abstract: 342,509. Gas fires. SMITH, M., 48, Devonshire Street, London. Jan. 24, 1930, No. 2535. [Class 126.] A portable gas heating appliance, shown in transverse section in the Figure, comprises a boxlike casing open at the front over substantially the whole width, and provided with bars 12 to support asbestos fuel 11 which is visible through the front, and with a cavity beneath the bars adapted to receive and conceal a gas ring 16. In the stove shown the front of the cavity is closed by a strip or wall 5 which may be perforated and provide a space 19 beneath it for the supply of air to the gas burner. An open recess 17 at the foot of either or both side walls, or of the rear wall, allows the passage of the gas pipes. A front strip 20 retains the asbestos fuel. Utensils may be heated over an aperture 21 in the top of the casing, which is provided with a removable dished cover 22.
Patent GB-788524-A (GB)
Title: Improvements in domestic grinding mills, such as coffee grinders
IPC: A47J42/04
Filed: 1956-01-26
Abstract: 788,524. Coffee &c. grinders. AKTIEBOLAGET ELEKTROLUX. Jan. 26, 1956 [July 9, 1955], No. 2577/56. Class 59 In a domestic grinding mill, e.g. a coffee grinder, provided with a mill housing and a grinding mechanism one member of which is operatively connected to a crank arm, the crank arm is hinged to a cover for the mill housing. Preferably, the mill is adapted to be operated either manually or through the intermediary of a driven shaft, e.g. of a kitchen machine. As shown, a coffee grinder comprises a housing 10, 11 and a cover 21, which are rotatable relatively to one another, the housing comprising filling and collecting chambers 10, 11 detachably connected to each other by means of screw threads 25, 26. The cover 21 has a crank arm 40 pivotally mounted at one edge thereof and a sleeve 22 removably connected to a spindle 16 carrying a grinding worm 15. The filling chamber 10 has secured thereto a feed funnel 12 carrying a grinding ring 14, and the collecting chamber 11 has in the base thereof a pin 28 formed with recesses 29 adapted to engage a stud-like driving member mounted on the operating shaft of a kitchen machine e.g. of the kind described in Specification 661,593 which is referred to. The spindle 16 is rotatably supported in a bearing 18 which is secured to the upper edge of the filling chamber 10 by means of a spider having spaced arms 19. The spindle 16 rests on a bearing ball 33 which is adapted to be raised or lowered by means of a screw 34 to vary the distance between the grinding ring and worm. The crank arm 40 may be swung through 180 degrees to an inoperative position in which it lies along the top of the cover 21. The filling chamber 10 is provided with feet 39 on which it may be supported when the collecting chamber 11 is removed. The chambers 10, 11 are provided with vertical ribs 45, 46 and may be formed of transparent plastic material. When the grinding mill is to be driven by means of a kitchen machine, the crank arm 40 is brought to bear against a stationary part of the machine while when the mill is operated by means of the crank arm, the housing is held stationary. Reference has been directed by the Comptroller to Specification 739,137.
Patent GB-602925-A (GB)
Title: Scarecrow
IPC: A01M29/06
Filed: 1946-01-25
Abstract: 602,925. Bird scarers. LEWIN, G. E. W. Jan. 25, 1946, No. 2581. Convention date, Jan. 27, 1945. [Class 6(ii)] Surface and linear depressions 2, 3 are made in strips of metal used for scaring birds. The two sets of depressions alternate so that bending takes place across the wider depressions producing a crackling noise.
Patent GB-708533-A (GB)
Title: Improvements in cycle frames and the like
IPC: B62K3/10
Filed: 1951-02-02
Abstract: 708,533. Cycle frames. ROE, Sir A VERDON-. Jan. 18, 1952 [Feb. 2, 1951], No. 2582/51. Class 136(3) [Also in Group XXII] A frame for pedal cycles comprises a tubular cross-bar 1 connecting the steering head tube 4 with the rear wheel and intersecting a seat tube 2, the cross-bar being of an oval section with its major axis vertical at the connecting point of the steering head tube, the vertical axis of the oval decreasing whilst its minor horizontal axis increases towards the rear wheel, the cross-bar being apertured at 5 (Fig. 4) to receive the seat tube 2 and split behind the aperture to form the rear forks 6 strengthened by a plate 11.
Patent GB-912879-A (GB)
Title: Improvements in or relating to apparatus for correcting transmission distortion in analogue signals
Inventor: FOWL THOMAS CHARLES ROBERT SHA
IPC: H04B3/10
Filed: 1960-01-25
Abstract: 912,879. Electric selective-signalling systems. BRISTOL AIRCRAFT Ltd. Feb. 28, 1961 [Jan. 25, 1960], No. 2642/60. Class 40 (1). In a signalling system in which amplitude significant signals are transmitted and in which these signals are digitized at a receiver, the digitization being effected by the repeated comparison of each unknown voltage with reference voltages, transmission errors-due to amplifier drift and the like-are compensated for by also transmitting, over the same channel, a standard voltage, from which the reference voltages used in the comparisons at the receiver are derived. As described, five standard voltages 4, 5, 6, 7 and 8 are transmitted together with a signal voltage 1. The standard voltages are applied to a resistance chain to produce a number of reference voltages having the indicated nominal values. These reference voltages are selected in turn, starting with the smallest, by a diode gating arrangement 13 under the control of a coarse counter 20, and compared, in a comparator 9, with the unknown signal voltage. When the comparator 9 indicates that the selected reference voltage exceeds the unknown signal voltage stepping of the coarse counter 20 is stopped and stepping of a fine counter 40 is started. This counter controls a diode-resistance array 11, 12 and results, as it is stepped through its sixteen states, in the selection of successive reference voltages, each lying between two adjacent outputs of the main resistance chain, and in their application to a fine comparator 10. When one of these fine reference voltages exceeds the unknown signal voltage stepping of the fine counter is stopped and the coarse and fine counters together provide eight binary bits which represent the correct value of the unknown input signal voltage. Thus the unknown signal voltage is successively compared with a set of reference voltages, the reference voltages first increasing by increments of sixteen volts, and then, when the unknown signal voltage has been exceeded, increasing by increments of one volt from the coarse reference voltage just below the unknown signal voltage.
Patent GB-654938-A (GB)
Title: Improvements in and relating to follow-up control systems
IPC: G05D3/14
Filed: 1947-01-28
Abstract: 654,938. Electric control systems. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Jan. 28, 1947, No. 2662. [Class 40 (i)] In an electrical follow-up control system incorporating a high-pass, anti-hunting feedback path, a pilot member 11 is appropriately geared to the single phase A.C. fed rotors of high-speed and low-speed transmitters 27, 30 connected to corresponding receivers 28, 31, whose rotors are geared to follow up the motion of the controlled member 10, and which develop high- and low-speed deviational A.C. signals which energize the primaries of respective transformers 26, 32. The double secondary of transformer 26 applies high-speed signals to the grids of screen-grid valves 16, 17 and low-speed signals from the centre-tapped secondary of the high-ratio transformer 32 are fed to the grids through series resistances and glow discharge tubes 33, 34. The valve anodes are supplied with A.C. in phase with the appropriate grid signals from the secondaries of transformer 19 energized from the A.C. supply line 20, and when no signals are applied to the grids the valves are biassed by cathode resistance 18 to pass equal anode currents through the opposed balanced control field windings 13c, 13d of armature reaction excited generator 13 which is driven by induction motor 15 to supply D.C. to the armature of motor 12 which drives the controlled member 10. A small deviation between controlling and controlled members 11, 10 applies a corresponding high-speed deviational A.C. signal to the grids of the valves 16, 17, unbalancing their anode currents and exciting generator 13 to drive motor 12 until correspondence is restored. When the deviation is greater than a predetermined value, the low-speed A.C. signal on the secondary of transformer 32 is sufficient to ionize the glow discharge tubes 33, 34 and override the high-speed signal on the valve grids until the deviation is reduced to a value at which the low speed signal is insufficient to maintain ionization, when the high-speed signal resumes control. A network 35 for preventing hunting is connected between the armature of motor 12 and the input circuit of valves 16, 17, comprising capacities 36, 37, resistors 24, 25, 38, and inductance 39 in a high-pass filter circuit having a cut-off frequency greater than the highest frequency of any oscillatory motion to be transmitted, and a maximum transmission at the natural oscillation frequency of the system, the voltage fed back to the input being out of phase with any oscillation of the controlled member about the position of correspondence. Thus there is a strong degenerative feedback opposing any incipient oscillation at the natural frequency, but no feedback at the highest oscillatory frequency to be transmitted. Formulµ are given for computing the filter constants. A relay 40 is energized on connection of the A.C. supply to complete the circuits of the field of motor 12 and transformer 32 and remove a short across the compensating field of generator 13.