baber/WOPTO huggingface dataset:
Patent GB-610122-A (GB)
Title: Improvements in and relating to injection fuel pumps for internal combustion engines
IPC: F02M59/10
Filed: 1946-03-27
Abstract: 610,122. Fuel-injection pumps. MEINERTZ, M. F. March 27, 1946, No. 9488. Convention date, June 22, 1944. [Class 102 (i)] In a fuel-injection pump actuated by a cam during the discharge stroke, the cam follower is kept in contact with the cam during the suction stroke by means of the pressure of the fuel supplied to the pump. The pump may be of the type wherein the fuel under pressure is supplied to the pipe 12 and ports 11 and 13a and through the non-return valve 14 to port 13b. The end of injection is determined when inclined edge 10 on the piston uncovers port 11 from which point until the next injection, the piston is subjected to fuel supply pressure.
Patent GB-564462-A (GB)
Title: Improvements in envelopes
IPC: B65D27/00
Filed: 1943-06-15
Abstract: 564,462. Envelopes. WELLCOME FOUNDATION, Ltd., and SCOTTER, E. V. June 15, 1943, No. 9515. [Class 146 (ii)] In order to prevent damage to the enclosure when an envelope is opened by cutting or tearing off the end, the rear wall 10, Figs. 1 and 2, is provided with one or more tongues 12 formed by slits 11, the tongues being folded down over the enclosure 13, so as to hold it in place. The tongue may comprise a part 16, Fig. 3, projecting beyond the envelope wall. After being folded over the enclosure, the end of the tongue may be bent upwards to provide a tab, by means of which it can be grasped and withdrawn.
Patent GB-1306433-A (GB)
Title: Manufacture of carbonaceous materials having textile characteristics
IPC: D06M11/60
Filed: 1970-02-27
Abstract: 1306433 Dehydrated cellulose UNION CARBIDE CORP 27 Feb 1970 [29 May 1969] 9561/70 Heading C3A [Also in Division C1] Natural or regenerated cellulose fibres, filaments, yarns or textile materials made therefrom are dehydrated by subjecting them to the action of a phosphoric acid solution of up to 50% by volume concentration and then heating the acid treated product in a non-oxidizing atmosphere containing at least 15% by volume of ammonia, at a temperature in the range of from 100- 350‹ C. for a period of time sufficient to dehydrate the product by causing it to undergo a weight loss of from 20% to 50% based on the weight of the starting material before acid treatment. The phosphoric acid preferably has a concentration of from 1-50% by volume, and it preferably is an aqueous solution. The non- oxidizing atmosphere may contain an inert gas, e.g. N 2 , in an amount not exceeding 85% by volume. The material obtained may be subjected to further carbonization or graphitization,  e.g. by heating to 950‹ C. for 4 mins. in an atmosphere of nitrogen.
Patent GB-127983-A (GB)
Title: Pipe Joint.
Inventor: MCWANE JAMES RANSOM
IPC: F16L13/12
Filed: 1918-06-11
Abstract: 127,983. McWane, J. R. June 11, 1918. Spigot-and-socket joints held by caulking and the like; sleeve joints.-Relates to a caulked spigot-and-socket joint adapted to be made at the works and completed in a trench or other place. The socket is formed with a groove 6 near the mouth and a deep groove 8 at the base with a tapering wall 9. In the chamber so formed is placed a backing preferably formed of a series of blocks 11 held together by a lead strip 13, Fig. 6, this serving as an " anvil " when caulking. In making the joint at the works, a plug 14, slightly larger than the spigot of the pipe to be finally connected, is placed in position, and the joint made with the backing 11, jute or the like 15, and caulked lead 16, the object being to save lead. When in situ, the plug is withdrawn by a tool 23, and the. spigot inserted the caulkings being then completed. For connecting two lengths of plain piping, a sleeve 3a, Fig. 9, forming a double socket may be employed. Should the pipe line be deflected the blocks slide on the inclined wall 9 compressing the packing and so maintaining a tight joint.
Patent GB-459042-A (GB)
Title: Improvements in or relating to television and kinematography
IPC: H04N3/02
Filed: 1935-03-27
Abstract: 459,042. Television. VIERL, H., 9, Grasslfingerstrasse, Grobenzell, Munich, Germany. March 27, 1935, Nos. 9613 and 9614. Convention dates, March 27, 1934 and Oct. 11, 1934. [Class 40 (iii)] [See also Group XX] A television transmitter, Figs. 3 and 4, comprises a diaphragm 3 having a slit 4 mounted on the end of a tube within which is mounted on a shaft 12 a cylinder 10 containing a photoelectric cell 9 and provided with a series of slots 11 parallel with the slit 4. The tube, diaphragm 3 and cylinder 10 are all rotated about an axis perpendicular to the longitudinal axis of the slit whilst the cylinder 10 is also rotated about its shaft 12 so that the apertures 11 are moved transversely of the direction of the longitudinal axis of the slit. A cylindrical lens may be substituted for the slit 4. The currents from the cell 9 are fed at the receiver to a lamp 15 located in a slotted cylinder 16 rotating on a shaft 12<1> synchronously with the cylinder 10, the whole being mounted in a tube rotating synchronously with the tube at the transmitter. Fig. 5 shows a modification in which the cylinder 10 is replaced by a shutter 19 having a slot 20 parallel to the slit 4 and reciprocated in the tube transversely of the axis thereof with the two slits always parallel. A similar shutter is provided at the receiver. If desired, the currents from the cell 9 may be recorded at the receiver by a stylus on a wax plate. According to a further modification, Fig. 6, a diaphragm 22 provided with a slit 21 covers the cell 9 and this diaphragm together with the slit diaphragm 3 or cylindrical lens are rotated about the axis A, B, the diaphragm 3 being also oscillated about the longitudinal axis of the slit or lens. Fig. 2 shows a kinematograph camera in which a slit diaphragm 3 or cylindrical lens replaces the usual objective of a camera 6, the whole being revolved about the axis of the tube carrying the slit diaphragm or lens whilst the film 7 is reeled off, the linear velocity of the film being higher than the rotational velocity of the camera. A revolving three-colour filter 8 may be provided. It is stated that a series of different markings are produced on the film which do not constitute a picture or negative recognizable by inspection of the film, but that the film can, however, be used for projecting a picture on to a screen by the use of a projector similar to the camera and rotating at the same speed, the film being reeled off at the same speed as during the exposure. The Specification as open to inspection under Sect. 91 comprises also modifications in which the parallel strips produced by the slit diaphragm or cylindrical lens are contracted into points by means of a lens and in which the scanning of the strips or points is effected by an oscillating mirror. This subject-matter does not appear in the Specification as accepted.
Patent GB-914170-A (GB)
Title: Control systems for regulating the relative speeds of two or more machines
IPC: H02P5/50
Filed: 1959-03-20
Abstract: 914,170. Automatic control of thickness. WESTERN ELECTRIC CO. Inc. March 20, 1959 [March 28, 1958], No. 9704/59. Class 38 (4). In a control system for maintaining a predetermined relationship between the speeds of operation of two machines, the drive to one of the machines is delivered through an electricallycontrolled clutch which is energized from a circuit that includes a variable voltage device, adjusted in dependence on the relative speeds of the machines, by which the rate of supply of electrical energy to the clutch is varied so as to maintain the predetermined speed relationship. In an embodiment, the annealing or take-up machine is driven through an electromagnetic clutch having an energizing winding 71 by an alternating current motor and has coupled thereto a selsyn generator 89 feeding a differential selsyn 324, a second winding of which is energized by a selsyn generator 67 coupled to the wire-drawing machine. The energizing winding 71 is fed from a supply 210 through a thyratron 205 the grid bias of which is derived from the anode of a triode 215 and tends to maintain constant the relationship between the speed of the annealing or take-up machine and the speed of the wire-drawing machine. The triode 215 is supplied from a stabilizing valve 264 in series with a stabilizing valve 265 and the cathode to grid voltage comprises (1) an alternating " rider " voltage derived from a transformer 245 through a potentiometer 250; (2) the voltage across the stabilizer 265; (3) a direct voltage from a potentiometer 310, the slider of which is positioned by the shaft of the differential selsyn 324 and whose angular displacement is dependent on relative speed; (4) a stabilizing feed-back, voltage from a potentiometer 295 derived from a potentiometer 290 across the winding 71; and (5) a direct voltage from a potentiometer 240 connected to a tacho-generator 220 and proportional to the speed of the machine. In a modification, the wire-drawing machine is similarly controlled except that the bias to the triode is arranged so as to tend to maintain the speed of the machine at a value dependent on the voltage from a manually-adjusted speed reference potentiometer and a bias voltage to compensate for variation in insulation thickness is derived from a device measuring the capacitance of the moving insulated wire. Alternatively, the thickness of the insulation is measured by a device directly measuring the diameter of the insulated wire. Specification 838,689 is referred to.
Patent GB-592794-A (GB)
Title: Improvements in or relating to electric impulse responsive apparatus
IPC: H03K23/82
Filed: 1944-05-19
Abstract: 592,794. Pulse counting circuits ; thermionic distributers. NATIONAL CASH REGISTER CO. May 19, 1944, No. 9745. Convention date, April 30, 1942. [Class 40 (v)] In a pulse counting circuit of the type employing a ring of gas-filled valves arranged to be fired in sequence by the pulses, the valves are coupled in groups for mutual extinguishing action, successive valves being included in different groups. This arrangement allows a more rapid counting rate since after a valve has been fired extinguishing any other conducting valve in the group, a valve in each of the other groups must be fired before a second valve in the first group is fired thus allowing more pulses to be handled during the time of recovery from the extinguishing action of the first group of valves. As shown in the Figure the valves are grouped in pairs, conducting valves in each pair being shown shaded, a coupling circuit comprising resistance 122 and condenser 123 causing the conducting valve to be extinguished when the opposite valve is fired. The grid of each valve is biassed considerably beyond the critical potential from source 64 and is connected over resistances to the cathode of the previous valve in the ring, the firing of a valve reducing the negative bias on the grid of a succeeding valve. To ensure' their being conducting, the grids of the valves shown shaded are temporarily earthed, the first pulse, applied over line 102, firing valve 1 which extinguishes valve 6 and reduces the bias on valve 2 preparing it for the receipt of the second pulse. Due to the larger negative potential on the grids of the other non-conducting valves, the amplitude of the pulse is insufficient to fire them. In a modification, Fig. 2 (not shown) the valves may be connected in two groups of five. Specification 592,793 is referred to.
Patent GB-808165-A (GB)
Title: Improvements in wood screws and their manufacture
Inventor: ANSINGH CARL HERMAN
IPC: B21H3/10
Filed: 1957-03-25
Abstract: 808,165. Making wood screws. ROBERTSON MFG. CO. Ltd., P. L. March 25, 1957; No. 9747/57. Class 83 (2). [Also in Group XXV] A method of making wood screws comprises cold-working a wire to form a blank having a reduced first shank portion 12 of constant diameter, a second shank portion 11 of greater constant diameter and a tapered transition portion 13, forming a head 14 and then rolling simultaneously and shaping the first shank portion to provide a threaded shank terminating, in a threaded workhardened gimlet point. A metal screw-blank is extruded cold so that the upper shank 11 retains the diameter of the wire stock, the extrusion being accompanied or succeeded by an upsetting of the metal to form a screw-head 14. The reduced shank 12 of the blank is then further cold-worked in providing a thread 17 by a rolling operation, the thread having for the major portion an outer diameter substantially equal to the unreduced shank 11. The rolling of the thread which may be single or multiple is commenced from the transition portion 13 and during rolling the metal of the shank is shaped to form a gimlet point 18 with the thread 17 continuing to the tip 19. In a modification the outer diameter of the thread may be less than that of the upper shank portion.
Patent GB-970342-A (GB)
Title: Voltmeter
Inventor: JEPSON GERALD LIONEL
IPC: H03F3/343
Filed: 1960-03-18
Abstract: 970,342. Voltage measurement. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 16, 1961 [March 18, 1960], No. 9750/60. Heading G1Q [Also in Division G4] Apparatus for measurement of R.M.S. voltage of repetitive waveform, steady voltage or a combination of alternating and direct voltages, comprises a rectifier bridge circuit MR1, MR2, MR3, MR4, feeding a transistor amplifier circuit with semi-conductor diodes MR7-MR16 as its load to develop a current proportional to the square of the applied voltage, the mean value of such current being determined by a circuit of suitable time constant, feeding said current into another transistor amplifier circuit with series semi-conductor diodes MR17-MR20 as its load to produce an output voltage proportional to the square root of the said mean current, and indicating such voltage on a moving coil meter A with a linear scale calibrated in R.M.S. voltage.
Patent GB-375746-A (GB)
Title: Improvements in and relating to landing devices for aircraft
IPC: B63B35/52
Filed: 1932-04-05
Abstract: 375,746. Aircraft landing devices. HEIN, H., 17, Georg Groningstrasse, Bremen, Germany. April 5, 1932, No. 9782. Convention date, April 10, 1931. Addition to 354,162. [Class 4.] An aircraft landing sail as described in the parent Specification is provided, on the part skimming on the water, with closely set cross slats c extending over almost the whole breadth of the sail, thereby causing the whole breadth of the sail to assume the contour of the fronts of the aircraft floats.
Patent GB-273834-A (GB)
Title: Improvements in or relating to electrically illuminated signs
IPC: G09G3/00
Filed: 1926-04-14
Abstract: 273,834. Woods, R. S. April 14, 1926. Monogrammic signs.-A sign is composed of a number of units each consisting of a rectangular casing divided into compartments in each of which is an electric lamp wired to a terminal e correspondingly arranged on a fixed horizontal part of a switch board. Plates h carrying pins i arranged in the form of the design to be displayed are carried by a rising and falling part f of the switch mechanism and make contact with the terminals e, which may be in the form of mercury cups. The plate f is suspended by a spring m and is lowered by a solenoid p, being guided by rods n. Each plate h is removably mounted in an insulating frame g on the plate f and the pin i project through holes in the plate, or the plate f may itself be insulating. The needles and mercury cups may be replaced by spring blade contacts. A motor-driven contact breaker may control the solenoid.
Patent GB-548683-A (GB)
Title: Improvements in or relating to matches
IPC: C06F5/00
Filed: 1941-08-01
Abstract: 548,683. Matches. HENDERSON, H. I. P. Aug. 1, 1941, Nos. 9821 and 12708. [Class 50] A short wood, cardboard, or wax match 1 is provided with a holder 2 into a socket 3 in which the match is inserted. The holder may be split at 4, and a sliding ring 5 used to cause it to grip the match which may be ejected after use by a member passing through a slot into the socket, and movable longitudinally. Fig. 7 shows a match for use with the holder made in a continuous strip formed by a number of short lengths 9 notched at 9a to facilitate severance from the strip.
Patent GB-1278745-A (GB)
Title: A method for the production of a flat glass strip
Inventor: CLASSEN FRANZ
IPC: C03B18/14
Filed: 1970-03-02
Abstract: 1278745 Flat glass strip with roughened surface ERSTE DEUTSCHE FLOATGLAS GmbH & CO OHG 2 March 1970 9864/70 Heading C1M Flat glass strip 5 with a roughened surface is produced by flowing molten glass 2 at a controlled rate on a bath 3 of molten metal on which it spreads out to form a strip 4 of even thickness, bringing at least one of its surfaces while on the bath 3 into contact with a non-adhesive frictional tool 10 which roughens the surface and subsequently heat-treating the glass so that the roughening remains at least partially. As shown in Fig. 1, the tool 10 makes only intermittent contact with the glass surface and comprises a bar extending across the glass supported by a holding device 11 connected at each side to a crank drive 12 to give an oscillating motion to the tool 10 which is then out of contact on its return motion. Alternatively, the tool may be fixed, given uneven movements, or a swinging oscillation. The tool 10 is preferably of graphite, but may be of wood charcoal, and the holding device 11 may be hollow and cooled by passing water therethrough to prevent sticking of the tool 10 to the glass. The bottom surface of the tool 10 is flat but rough. A number of different constructions of tools is disclosed, such as in Fig. 6, with bars 37, 38 pivotally secured at 39, 40 to the roof 8 of the chamber over bath 3. The temperature of the glass adjacent the tool or tools may be adjusted so that the top surface is hotter than the glass below, as by heaters 25, 26 and the breadth and thickness of the roughened glass may then be reduced by stretching in the longitudinal direction.
Patent GB-1027403-A (GB)
Title: Stackable container
IPC: B65D25/04
Filed: 1964-03-09
Abstract: 1,027,403. Stackable containers. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. March 9, 1964 [March 18, 1963], No. 9894/64. Headings B8D and B8P. A stackable container, e.g. of plastics material, comprises a rectangular bottom wall 10 and two pairs of parallel vertical walls 11, 13 and 12, 14, the upper ends of the walls 11-14 being first stepped outwardly to provide a circumlerential inner ledge 16 to support a superimposed identical container and then being continued upwards as extensions, e.g. 12a, vertical grooves 15 being provided in the walls 11-14 extending downwardly from the ledge 16 to removably receive divider members 21, 22. Similar grooves 17, horizontally offset from the first set, are provided in the wall extensions above the ledge and the grooves 15 and 17 have corresponding external ridges 15a and 17a, such that during stacking the ridges 15a of the upper container fit in the grooves 17 of the lower one. At each groove location in the ledge 16 an outward horizontal joggle 16a is provided to engage the ridge 15a of the container above. The tops of the walls, e.g. 12a, are turned outwardly to form a circumferential bead 18. Recesses may be formed in the walls immediately above the ledge 16 to receive a snap-in lid.
Patent GB-719697-A (GB)
Title: Improvements relating to the mechanical handling of bottles, jars and the like
IPC: C03B35/10
Filed: 1951-04-27
Abstract: 719,697. Lehr charging apparatus. DALE, BROWN & CO., Ltd., and ROBSON, J. S. April 24, 1952 [April 27, 1951], No. 9924/51. Class 51 (2). [Also in Group XXX]  In apparatus of the kind in which bottles, jars or the like are transferred from a belt conveyer 10 on to which they are deposited by a bottle or like making machine, to a lehr belt 12 by pusher bars 17 adapted to be advanced successively in reverse order to the direction of travel of the conveyer 10 at suitable intervals so as to position the bottles in closely spaced rows on the lehr belt, the pusher bars 17 being mounted for to-and-fro axial movement between rotatable rollers 14, 15, means are provided for supporting each pusher bar separately at the front and rear thereof and the said means are separately operable for pressing each bar in turn first into frictional contact with the roller 14 and then into contact with the roller 15 whereby alternate forward and rearward movement is imparted to each bar. Each bar is supported by a roller 21 on a lever 18 and engages between rollers 24, 25 on a lever 22. These levers are controlled by cams 28, 29 on a cam wheel 26 engaging spring-pressed cam followers 50, 51, whereby the roller 21 first presses the bar against the roller 14 to give it a forward movement and then the roller 25 presses the bar against the roller 15 to effect its return movement. The cams on successive cam wheels are staggered so that the bars are operated in timed succession. The cam shaft 27 is rotated by a continuously driven pinion 30 through friction clutch at a speed slighty higher. than that required if accurate synchronization of the bottle making machine and the transfer mechanism were obtainable and is stalled momentarily at intervals. This is effected by a ratchet wheel 31 keyed to the shaft 27 and having the same number of teeth as there are pushers 17, and a pawl 32 actuated by a piston operating in a cylinder 35 by pneumatic Impulses from the bottle making machine to lift over each tooth of the wheel as long as the bottle making machine is near enough in step with the pushers 17: If the pushers get too far ahead of the machine, the pawl engages a tooth of the ratchet wheel before it is lifted and momentarily stalls the shaft 27. The pinion 30 is driven from the roller 14 through gearing 36, 37, 38 and the roller 14 is driven through belting 39, 40, worm gear 41, and variable speed unit 42 by a motor 43.
Patent GB-568415-A (GB)
Title: A process for the preparation of a growth-decrement factor
IPC: A61K35/22
Filed: 1943-06-21
Abstract: The growth-decrement factor prepared from urine by the process disclosed in the parent Specification is purified by adding to an aqueous solution thereof a solution of a salt of iron, copper, tin, zinc or lead, removing the impurities so precipitated, and then removing excess of metal salt by a precipitation process.  In an example, absolute alcohol is added to concentrated male urine, the mixture made just alkaline to methyl red by addition of sodium hydroxide, and the heavy precipitate formed filtered off.  The filtrate is distilled at 100 DEG  C. under reduced pressure to obtain a resinous solid, which is extracted with absolute alcohol and evaporated to dryness after filtration.  The residue is dissolved in alcohol, cooled to 5-10 DEG  C., brought to pH 3 by sulphuric acid and ether added to obtain a liquid comprising 85 per cent ether and 15 per cent alcohol.  Precipitated impurities are removed, and the filtrate evaporated under reduced pressure.  The residue is dissolved in water and ether added which takes up the bulk of the active substance.  The ether layer is separated, more ether added and the separation repeated twice.  The combined ethereal solutions are adjusted to pH 6-7, and the ether distilled off. The partition process using ether is repeated, and to the ultimate residue dissolved in water a saturated solution of copper sulphate is added gradually until no further precipitate is obtained.  The latter is filtered off, sulphuretted hydrogen passed through the hot solution, the copper sulphide separated, excess sulphuretted hydrogen removed by boiling and the pH of the final solution containing the purified active substance brought to 6-7.