baber/WOPTO huggingface dataset:
Patent GB-354964-A (GB)
Title: Improvements relating to the production of artificial silk
IPC: D01D10/04
Filed: 1930-07-14
Abstract: In the production of artificial silk the material is directly wound on to cross-wound bobbins from washed and dried spinning cakes, the threads being drawn off overhead while the cakes are stationary, the thread layers having been previously loosened, as by the washing process described in Specification 344,279.  In this way draw-off velocities of from 1970 to 2630 feet per minute are attainable and cross-wound bobbins of about 8 in. diameter and 4 1/2 lbs. weight are produced.
Patent GB-1282272-A (GB)
Title: Apparatus for measuring the distance between surfaces
Inventor: LOBB DANIEL RICHARD
IPC: G02B27/44
Filed: 1968-05-06
Abstract: 1282272 Measuring distances photo-electrically SIRA INSTITUTE 6 Aug 1969 [6 May 1968] 21379/68 Heading G1A [Also in Division G2] In an apparatus for measuring the thickness of a sheet, a pattern of light, UV or IR radiation is scanned across the surfaces of the sheet and reflected radiation is directed through masks (20, 30) on to photo-dectors (24, 28) to produce respective alternating signals, the phase difference between the signals produced from the two photo-detectors being indicative of the sheet thickness. The pattern is produced by a rotating radial grating 38 positioned adjacent a light source 34, the light from which is divided and directed by a system of mirrors to the two sides of the sheet of material. To measure the thickness of a microcircuit on a substrate, three source/detector combinations may be employed, one monitoring the surface of the circuit while the other two monitor the surface of the substrate Fig.4 (not shown). In a further embodiment Fig. 5 (not shown), a single pattern is formed on both the microcircuit and substrate by a grating, and a further grating (48) is used as a mask. A mirror (50) directs light derived from the microcircuit on to a first photo-cell, while light from the substrate is received directly on a second photo-cell. Alternatively, as shown in Fig. 6, light reflected from the substrate and microcircuit is focussed on to a line of three slits of which only the inner slit receives light reflected from the circuit. Three light guides 73-75 are used to direct the light to multipliers 76-78 whose outputs are combined using two phase-sensitive rectifiers and fed to a meter calibrated directly in thickness units.
Patent GB-732517-A (GB)
Title: Improvements in musical boxes
Inventor: ROBERT MARIE CHARLES HUOT DE L
IPC: G10F5/02
Filed: 1953-08-01
Abstract: 732,517. Percussive musical instruments. BALFOUR PUBLICATIONS, Ltd. Aug. 1, 1953, No. 21407/53. Class 88 (1). An automatic percussive musical instrument comprises a set of sonorous bars or plates 4 (Figs. 1, 5) and corresponding pivoted strikers 7. Each striker has a tail 9 and is retained in the position shown in Fig. 1 by a flat rubber spring 13 (Fig. 6) running through slots 12 and 14 in the strikers 7 and dividing partitions 11 respectively. The downward insertion of a tune sheet 17 moves the striker away from the bar (Fig. 2) until a perforation comes opposite its tail 9, when the striker is released and is urged by the spring towards the bar, which it strikes (Fig. 3). The spring then returns the striker to its rest position. The sheet may comprise two interleaved sets of perforations such that inversion of the sheet allows the operative set to be changed.
Patent GB-933362-A (GB)
Title: Pulse rate function generation
IPC: H03M1/00
Filed: 1961-06-14
Abstract: 933,362. Electric selective signalling systems. BENDIX CORPORATION. June 14, 1961 [June 28, 1960], No. 21490/61. Class 40 (1). In a system for converting a marking on a selected one of a plurality of leads into a pulse train with a corresponding average frequency the marked lead is arranged to select a corresponding combination of reference pulse trains which, when mixed produce a pulse train of the desired average frequency. As described, an oscillator 6, Fig. 1B, drives a cascade-connected series of bi-stable circuits 7a, 7b, 7c, thereby producing three reference pulse trains of different frequencies selected ones of which are routed to an output lead S via an array of " and " and " or " gates in dependence upon the particular one of a plurality of input lines MIAI which is marked. The circuit shown also produces a second output pulse train, similar to the first, except that the correspondence between the marked input lead and the average output frequency is different. Specification 933,361 is referred to.
Patent GB-1012023-A (GB)
Title: Improvements in rocket motors
Inventor: ROBINSON PATRICK PEEK
IPC: F02K9/38
Filed: 1961-06-14
Abstract: 1,012,023. Rocket motors. BRISTOL AEROJET Ltd. June 5, 1962 [June 14, 1961], No. 21512/61. Heading F3A. A two-stage rocket motor comprises solid fuel combustion chambers 2, 3, Fig. 1, interconnected by a valve arranged centrally of a flange 9, the valve comprising moulded sectors 6 of resin-impregnated asbestos which are hinged to a hard metal ring 7 by soft metal plates 6a, Fig. 3, the sectors 6 being so shaped that they form a hemispherical surface and are adapted to open outwardly towards chamber 2 when a bag 14 is inflated on production of propellent gases within chamber 3. The central area of bag 14 is blown out after inflation to allow passage of the combustion gases to a discharge nozzle 4. The bag may be of rubber, reinforced, apart from the central area, with fabric and its surface nearest the sectors may be lubricated to aid inflation. The valve is rendered gas-tight with respect to chamber 2 by a layer of rubber 18a which may be scored to facilitate breakage thereof. In an alternative construction, Fig. 5, sectors 20, pivoted at 22, are opened by a moulded resinimpregnated-asbestos. sleeve 26 actuated by springs 25. The sleeve is normally locked in position by a co-operating piston and catch (Fig. 7, not shown), but is unlocked by gas action on the piston when pressure is generated in chamber 3.
Patent GB-887104-A (GB)
Title: A method and means for depositing hard metal on another metal body by electric sparks
Inventor: ADCOCK JOHN LEWIS
IPC: B23K11/00
Filed: 1958-07-07
Abstract: 887,104. Coating with metals. WICKMAN Ltd. July 2, 1959 [July 7, 1958], No. 21647/58 Class 82(2). [Also in Group XXII] A hard metal deposit such as sintered carbide, boride, nitride or silicide is applied to a workpiece, particularly a cutting or shaping tool i, Fig. 2, by electric sparks from a condenser which is discharged under the control of an electronic switch through a hard metal anode h in contact with the workpiece. The anode may be held in the chuck 10 of an electric motor 11, the sparking circuit being additionally controlled by a thumb-operated switch 12.
Patent GB-323790-A (GB)
Title: Improvements in the manufacture or treatment of threads or filaments of organic cellulose derivatives
IPC: D01F2/28
Filed: 1928-07-27
Abstract: 323,790. Dreyfus, H. July 27, 1928. Yarns &c., stretching.-Filaments or threads of cellulose acetate or other organic derivatives of cellulose such as cellulose ethers, are stretched continuously while in a set elastic condition during their travel from one point to another, the threads previous to or during the stretching being treated with solvents or swelling agents or wetted with water or concentrated mineral acids. Operating in this manner the stretching, which may amount to 100 per cent or more, is distributed uniformly along the length of the threads, and the stretched materials exhibit an increased resistance to delustring and also an increased strength. The stretching may take place during a bobbin-tobobbin, hank-to-bobbin, or other winding or winding and twisting operation, or the threads may be passed round a number of stretching rollers moving with increasing peripheral speeds. As a modification, stretching may be employed continuously with the production of the filaments and threads, the latter being stretched positively after the application of the agents that facilitate stretching; or such agents may consist of residual solvent as contained in the spinning solution, but in this case the stretching must be carried out after the filaments have become set but still contain a substantial amount of solvent, say 10-20 per cent. This latter modification is conveniently carried out by stretching the threads immediately on leaving the spinning cell, for which purpose they may be passed round two or more rollers moving with increasing peripheral speeds. In cases where the agent that facilitates the stretching is applied to the threads, this may be performed by means of a spray, or by passage over a moistened roller or through the vapour of the agent, or by immersing the threads, hanks or packages in a bath of the agent. After stretching, the agent may be allowed to dry in the threads, or it may be washed off and the threads then dried; drying may be carried out with tension or in the absence of tension. Specifications 198,023 and 277,089 referred to.
Patent GB-796354-A (GB)
Title: Improvements in or relating to glass working machinery
IPC: C03B33/06
Filed: 1955-07-28
Abstract: 796,354. Glass ampoules. SHAW, G. S. July 27, 1956 [July 28, 1955], No. 21789/55. Class 56. In an apparatus for making ampoules wherein a previously formed neck is scored and visual marking material is applied to the score or to a definite position relative thereto, the scoring and application of the marking-material take place at the same station. The apparatus is generally similar to that described with reference to Figs. 6 and 7 of Specification 744,202 except that in that case the scoring and application of the marking-material take place at successive stations. The complete apparatus includes a trimmer for cutting the neck, flame polishers for treating the severed edge, coolers followed by the neck scorer and marking applicator, a heater for drying the marking-material, and gauges for the finished ampoules. The marking- material applicator 106 is lowered into and raised out of contact with the scored neck automatically by cam-controlled mechanism which also controls rotation of the applicator rod 105, when raised, through roughly 180 degrees to bring the applicator 106 over a plate 110 in a reservoir 107 of marking-material, the plate 110 being automatically raised and lowered by the cam-controlled mechanism. Specification 762,857 [Group VI] also is referred to.
Patent GB-690675-A (GB)
Title: Improvements in or relating to truing apparatus for grinding wheels
IPC: B24B53/04
Filed: 1951-09-17
Abstract: 690,675. Trueing grinding wheels. NORLANDER, H. G. Sept. 17, 1951 [Oct. 4, 1950], No. 21827/51. Class 60. A trueing apparatus for a grinding wheel 3 mounted on a linearly-movable slide 2 comprises a dressing tool 5 mounted in a holder 4, means 7 to guide the holder and the dressing tool in a path inclined at an angle of 45 degrees to that of the slide 2, and means connecting the holder and the slide whereby the dressing tool is maintained in contact with the periphery of the grinding wheel as the diameter of the latter decreases in use. The latter means consist of a fork 11 and a roller 8. The dressing tool is provided with a screw adjustment 12 and may be rocked or reciprocated across the face of the grinding wheel.
Patent GB-1425322-A (GB)
Title: Information retrieval apparatus
IPC: G05B19/23
Filed: 1972-05-09
Abstract: 1425322 Automatic control of position SELECTRO-MICRO CO Ltd 8 May 1973 [9 May 1972] 21854/73 Divided out of 1425321 Addition to 1249321 Heading G3N In a film positioning system, the count in a counter 10 holding the initial (datum) and destination positions in associated stores 20, 18 respectively is initially incremented by a predetermined number representing a count in auxiliary counter 56, the count in counter 10 being incremented as the film moves and compared by comparator 22 with the destination position in store 18. At equality when a signal exists on lead 34, the film drive speed is reduced and the displacement pulses count down the auxiliary counter 56 until it reaches zero when the drive is stopped. The direction of motion of the film is determined by the relative values of the datum and destination positions. The displacement pulses are produced from an optical transducer 5 and markings on the film and always correspond to the leading edge of the marker. The stop signal is delayed so that the film is stopped with the transducer at the centre of the marker. The predetermined number can be varied by "aux counter switch" 55 to allow for variations of the number of film frames per unit length. The direction, drive and braking control signals are derived by the main control unit 40 on outputs 42-52. The datum and destination are entered into the respective stores by operation of keys B and A respectively and keying a 4 digit number at 26 which steps a shift register in write control unit 24. The datum number is also in location counter 16. Operation of switch C feeds clockpulses from pulse generator 54 to clock up auxiliary counter 56 and location counter 16 until the former reaches its pre-set maximum when the fast drive is initiated in a direction determined by the output of comparator 22. At equality a signal on line 36 directs the displacement pulses to count down auxiliary counter 56 only and at a zero reading from the counter braking circuit 50A which also operates a clamping circuit 53A to hold the film  rigidly is applied. A stop button 43 and associated circuit 45 stops the film in any position while a  manual control enables the film to be moved in any direction at any desired speed. Slight movement of the film cassette releases switch 59, which releases the brake 50A and clamping circuit 53A and permits cassette removal. If the film over-runs, a stop foil actuates an inductive sensor and the film is rewound to the last frame.
Patent GB-661135-A (GB)
Title: Improvements in or relating to the thermal piercing of minerals by oxy-fuel burning
IPC: E21B7/14
Filed: 1949-08-24
Abstract: 661,135. Rock boring ; fire cutting. LINDE AIR PRODUCTS CO. Aug. 24, 1949. [Sept. 1, 1948] No. 21966/49. Classes 68 (i) and 85. [Also in Group XI] For boring holes in rock, a blow pipe B is suspended by a cable in the borehole and the process of disintegration of the mineral at the bottom of the bore started by the oxyfuel flame issuing from the nozzle of the blow pipe is assisted by cutting teeth T, formed on the nozzle, when the blowpipe is reciprocated parallel to the line of penetration.
Patent GB-944497-A (GB)
Title: Multi-disc speed-changing unit
IPC: F16H15/14
Filed: 1962-06-06
Abstract: 944,497. Variable-speed friction gear. A.B.G. SOC. ARIES, LA BOUGIE B.G. ET S.F.E.D.R. REUNIES. June 6, 1962 [June 8, 1961; Oct. 31, 1961], No. 21973/62. Heading F2D. A variable-speed friction gear comprising conical driving discs 4, 5, 6, axially slidable on splines 2 on the driving shaft 1, co-operating with interpenetrating discs 10, 11, 12 splined within a drum 7 rigid with the driven shaft 20 and having means 25 for pressing the stack of discs together and for moving the driving shaft radially, has lubricating passages 33 extending from a bore 32 in the driving shaft 1 to the splines 2. The lubricant is directed along the disc faces by flexible notched-edge channelsection rings 35 and by oblique passages 40 at the end of the driving shaft. A flexible deflector ring may 37 be fitted between the outer disc 4 and the shaft 1.
Patent GB-313357-A (GB)
Title: Improvements in tractor wheels
IPC: B60B15/26
Filed: 1928-07-28
Abstract: 313,357. Dawe, J., and ]3arrell, M. E. Gibbons-. July 28, 1928. Agricultural-machine and like rims and tyres, adapting for use on roads. -A tractor wheel having its rim formed by a series of edge-on sinuous rings r', r<2>, r<3> is adapted for use on roads or hard ground by means of metal shoes shaped to fit between the tread rings and fitted with rubber blocks S. The shoes may be formed with lips S<1> to bear on the tread rings, and are secured by bolts b.
Patent GB-748489-A (GB)
Title: Improvements relating to cremation furnaces
Inventor: ANDERSON ROBERT HENRY
IPC: F23G1/00
Filed: 1952-09-02
Abstract: 748,489. Cremation furnaces. NORTH EASTERN GAS BOARD. Sept. 29. 1953 [Sept. 2, 1952], No. 22020/52. Class 51(2). In a gas-fired cremation, furnace air preheated in vertical side flues 17 is discharged into the main combustion chamber A through air ports 1 in the furnace crown, the central row of air ports having burners 2 disposed therein, and combustion gases pass through a grid 3 supporting the coffin, over an ash hearth 7 and through a rearwardly disposed offtake into an ash-refining chamber 11 running below the ash hearth. From the chamber 11, waste gases pass into lower longitudinal side flues 12 through vertical side flues 13 alternating with the air flues 17 and into upper longitudinal side flues 14 from which the gases are discharged by venturi ejectors 15. Additional air is supplied around the hearth 7 by side ports 9 and front ports 8, which latter discharge into venturi openings 18 assisting the draught. Additional burners may also be disposed in the ports 8. Remains from a previous cremation may also undergo final calcination in the chamber 11, while the succeeding cremation is taking place in the chamber A. The gas supply system may incorporate a solenoidcontrolled valve preventing the supply of gas before the air jets are turned on, and all the gas and air supply pipes may be welded to the interior of the outer casing 22.
Patent GB-1137440-A (GB)
Title: Drive transmission gear box
Inventor: HOWARD JOHN ARTHUR
IPC: F16H3/02
Filed: 1967-05-12
Abstract: 1,137,440. Change-speed and reverse gear. ROTARY HOES Ltd. 12 May, 1967, No. 22063/67. Heading F2D. In a gear-box, incorporated, e.g. in an agricultural implement such as a cultivator or grass cutter, and comprising meshing bevel gears 48, 68 respectively mounted on a shaft 37 and an output shaft 57, the shaft 37 extends across the adjacent end of the output shaft and is splined at 43, 44 for its bevel gear 48 to be assembled thereon in either of two positions diametrically opposed in respect of the output shaft bevel gear 68 to provide change of output shaft rotational direction. Further, the bevel gears 48, 68 are dimensioned so as to be interchangeable for ratio inversion therethrough. A pair of preceding stage pick-off spur gears 35, 50 are splined respectively on an input shaft 23 and a shaft 37. The gears 35, 50 also are interchangeable for ratio inversion therethrough, and may be replaced by a further pair of interchangeable pick-off spur gears 53, 54 stowed on spigots 51, 52 on the inside of a removable cover 17 and acting to prevent the gears 35, 50 from sliding off their respective splines 36, 45. That splined portion of the shaft 37 not mounting the bevel gear 48 mounts a lubricating oil paddle 46a. By removing the cover 17, secured by wing screws 18, and an end cover 40, the shaft 37 may be slidden out of the casing for interchange of the bevel gear and paddle thereon for output shaft rotation reversal. The input shaft 23 is driven from a tractor P.T.O. shaft through an overload-slipping coupling 31. A dipstick 22 depends from an oil filler plug 21 provided in a casing cover 19. The oil level 74 is arranged to be below the opening closed by the removable cover 17. As shown, the output shaft 57 is journalled in a cylindrical casing 56 welded to a base-plate 12, and has welded thereto a flange 58 screw-pinned to, e.g. the cutting blade of a rotary grass mower. The cylindrical casing 56 has a deflector 76 guiding outflowing oil when a plug 75 is removed. In Fig. 3 (not shown), the output shaft (57a) is mounted horizontally by a ball bearing (59a) in a cylindrical casing (56a) which is interchangeable with a cover 81 on the opposite side of the gear-box. The cover 81 may carry a spare ball bearing (59a).
Patent GB-242392-A (GB)
Title: Improvements in or relating to blowpipes
IPC: F23D14/46
Filed: 1924-09-18
Abstract: 242,392. Shorter, A. E. Sept. 18, 1924. Blowpipe burners.-In blowpipe burners consuming acetylene, hydrogen, petrol vapour, or other gaseous fuel with oxygen under pressure, atmospheric air is supplied to the mixture before combustion so as to reduce the consumption of pure oxygen. Fig. 1 shows a blowpipe burner in which the oxygen issuing from the nozzle E on a pipe D into a casing A induces a supply of gaseous fuel through a pipe G and of atmospheric air through apertures H in the casing. The aperture H may be covered with wire gauze to prevent emergence of the flame in the event of back-firing and the pipe C may be similarly provided with a, gauze cover or screen. A rotatable cap provided with apertures registering with the aperture H may be provided at the back of the casing for regulating the air supply. The mixture passes from the casing A through a tube B to the burner nozzle C. A mixing-chamber b of greater bore than the tube B may be provided in the burner nozzle. The nozzle E may in some forms of burner be surrounded by a small perforated casing arranged inside the casing A and communicating with the tube B. The gaseous fuel may be supplied at such a pressure as will assist in or alone cause the induction of air. The Provisional Specification states that the. air may be supplied to the blowpipe under pressure.
Patent GB-185102-A (GB)
Title: Improvements in or relating to carrier wave receiving systems
IPC: H04B1/22
Filed: 1922-08-14
Abstract: 185,102. Western Electric Co., Ltd., (Assignees of Young, F. W.). Aug. 24, 1921, [Convention date]. Vacuum tubes.-In order to permit the interchangeable use of a thermionic triode detector and a crystal or like detector in a wireless receiving-circuit, a socket member is provided into which either detector may be plugged. Fig. 1 shows the circuit and the socket and Figs. 2 and 4 show diagrammatically the two detectors. The socket comprises a base D and a tubular member, within which are arranged four spring contacts, of which f1, f2 are connected to opposite terminals of a battery E<A>. When a triode detector. Fig. 4, is plugged in, the filament circuit is completed by the engagement of contacts f3, f4 with the strips f1, f2, the grid is connected at contacts g, g1 and the plate at contacts p, p1.
Patent GB-481858-A (GB)
Title: Improved arrangement for facilitating the tuning of radio receiving sets
IPC: H03J3/12
Filed: 1937-08-11
Abstract: 481,858. Wireless receiving-apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMFENFABRIEKEN. Aug. 11, 1937, No. 22100. Convention date, Aug. 14, 1936. [Class 40 (v)] In a radio-receiver employing means for facilitating accurate tuning, such as an automatic brake on the tuning- spindle, controlled by a relay which operates when correct tuning is obtained, the signal amplifier is used to give an amplified current through the relay at the moment when the receiver is brought into correct tune. Intermediate frequency currents from valve 3 are passed by condenser 2 to tuned circuits 4, 9 associated with rectifiers 6, 11. Circuit 9 is highly selective, and its associated load circuit includes resistance 8 which is common to rectifier 6 with the result that a voltage appears across resistance 10 only at correct tuning when the bias from resistance 8 is overcome, and is passed by contact 13 to the L.F. amplifiers 15, 16. This amplified voltage pulse operates relay 20 which actuates the braking magnet 25 to hinder further rotation of the tuning knob 21 ; simultaneously contacts 19 remove a short circuit from the loudspeaker, contacts 12 short circuit resistance 8 and contact 13 changes over to connect the L.F. amplifier to the resistance 7, the diode 6 then functioning as the normal signal detector. The relay is arranged to be held operated by the normal anode current of valve 16. Forced rotation of the tuning-knob to tune to another station, causes the brake magnet 25 to move over a small angle against springs, Fig. 2 (not shown), and contact 23 is operated to short-circuit coil 20 through an inductance 24 to produce a time delay in the release of the brake.