baber/WOPTO huggingface dataset:
Patent GB-873028-A (GB)
Title: Telephone answering apparatus control
IPC: H04M1/65
Filed: 1958-03-11
Abstract: 873,028. Sub-station equipment. GENERAL TELEPHONE LABORATORIES Inc. March 11, 1958 [March 11, 1957; Oct. 16, 1957], No. 7819/58. Class 40 (4). In a telephone answering and message recording apparatus an indeterminate period for recording a message is obtained by a relay which is intermittently energized by fluctuations in the incoming speech signals to re-zero a timing device at each operation and release and which when faced with a long enough period of silence or continuous tone remains operated or unoperated long enough to allow the timing device to time the period out. As shown in Fig. 1 a number of bursts of ringing current over line L1, L2 connect mains from a switch 5 over a relay 12 to the motor 13 of a phonograph 1 and operate an off-normal switch 15 so that motor 13 receives continuous drive over contacts 16 while contacts 17 connect winding 18 of transformer 19 across the line. A recorded message is amplified at 26 and is connected to the line over transformer 19. At the end of the message the phonograph pick-up moves into an endless groove to reproduce a continuous tone which is amplified at 28 and drives a synchronous motor 30, an arm 32 of which is, after a time, rotated sufficiently to operate a set of contacts 33. The motor 30 is not driven far by the speech current of the recorded message as the motor is spring biased and during pauses in the speech the shaft is snapped back to its rest position. Operation of contact set 33 disconnects transformer 19 from the phonograph at 36 but connects the transformer at 39 to an amplifier 41 and a tape or wire recorder 2. Contact set 33 also operates contacts 37 to drive motor 38 of recorder 2 and contacts 43 to make the mains available to timing motor 45. Motor 45 is synchronous and spring-biased so that interruption of its energizing circuit causes its shaft to be rapidly reset to an initial position. Incoming speech, as well as going to recorder 2, is also amplified at 49 and causes the intermittent operation of a relay 50 with parallel contacts 53, 54. Each time contacts 53 or 54 are made a relay 56 operates to energize the timing motor 45 but each time contacts 53 and 54 change over the relay 56 releases and motor 45 resets to zero. An off-normal contact 55 on the motor 45 ensures that relay 56 cannot be energized until the motor has been fully reset to zero. Should a sufficiently long period of silence or continuous tone occur, in which case contacts 53 or 54 will be made continuously, motor 45 drives to operate a contact 65 by means of arm 62 and connects up a solenoid 66 on the phonograph 1 to actuate a reject mechanism to reset the apparatus to a condition for receiving further calls.
Patent GB-1087525-A (GB)
Title: Process for the catalytic oxidation of formaldehyde
IPC: B01J23/86
Filed: 1965-02-23
Abstract: Small quantities of formaldehyde in air are converted into carbon dioxide and water by passage over a catalyst containing copper (II) oxide and/or cobalt (II) oxide.  The catalyst may also contain chromic oxide, the weight ratio of Cr to Cu or Co being 0.1-1 to 1. The temperature may be 150-250 DEG  C. or lower. The rate of flow of air may be 500-15,000 Nm3 per m3 of catalyst per hour.  The catalyst may follow, precede, or be mixed with other catalysts suitable for the oxidation of organic compounds to prevent the formation of formaldehyde.
Patent GB-526219-A (GB)
Title: An improved tool for adjusting the firing gap of a sparking-plug
IPC: B25B27/00
Filed: 1939-03-10
Abstract: 526,219. Sparking plug gauges. K.L.G. SPARKING PLUGS, Ltd., CARINGTON, C. M., and SHOOBERT, G. W. March 10, 1939, No. 7847. [Class 7(iv)] Wire terminals are set in position by a combined guide and gauge consisting of a body member 16, a tubular extension 18 crosscut to form projections 19, and a hollow stem 23. After fitting the stem over the central electrode 15 of the plug, the body is pressed against spring action to insert the projections 19; angular movement brings the flat edges 29 against the terminals and deforms them to bear against the outer surface of the stem 23 which acts as a gauge. Specifications 475,838 and 517,586 are referred to.
Patent GB-473834-A (GB)
Title: Method of producing ceramic articles which resist spalling
IPC: C04B35/03
Filed: 1936-03-16
Abstract: The resistance of magnesia refractories such as magnesite bricks to spalling is increased by incorporating therein a small proportion, preferably 2-6 per cent, of one or more highly refractory substances, other than alumina or aluminous substances, which retard or arrest the formation of periclase crystals when the articles are burnt and providing that in the raw material the proportion of coarse grain (over ,8 mm.) to medium grain (,8 mm.-,1 mm.) to fine grain (below ,1 mm.) is approximately 5 : 2 : 3; however, the content of the coarse grain and the fine grain may vary by about one third in either direction, while the content of the medium grain, which should not exceed 25 per cent, may be omitted.  Highly refractory substances specified are chromite, chromium oxide, pyrolusite and magnesium silicates such as talc.
Patent GB-281917-A (GB)
Title: Improvements in connection with driving mechanism for recording apparatus
IPC: G01D15/24
Filed: 1927-03-22
Abstract: 281,917. Apthorpe, W. H., and Cambridge Instrument Co., Ltd. March 22, 1927. Feeding and driving means.-A motor for driving a recording-apparatus in which a record is made by periodic marking on a moving chart and producing motion by the alternate heating and cooling of a metallic member consists of a wire 2, Fig. 1, heated electrically and kept in tension by a movable abutment 1 attached to one end of a pivoted lever 4 from the other end 5 of which reciprocating motion is taken. Contact is made and broken at contacts 7, 8 by means of a spring-pressed pivoted arm 9 operated by the movement of an extension 6 from the lever 4. The motor may be employed to keep a clockwork mechanism wound by causing the end 5 of lever 4 to operate a pawl 29, Fig. 3, which drives a ratchet wheel 28 to wind up the main spring; overwinding is prevented by arranging the driving stroke of the pawl to be operated by the contraction of a spring, not shown, which is extended by the operation of the hot wire motor. An arrangement is shown in Fig. 3 in which the operation of the motor is controlled by the driven clockwork. In this arrangement the spring- actuated return stroke of the arm 26 which carries the winding pawl 27 is prevented from re-establishing the contact 30, 31 of the wire motor by a tooth of the wheel 34 driven by the clockwork until the tooth moves forward out of the way, when the motor operates to pull back arm 32 carrying contact 31 by means of a trip piece 35, the finger at the end of arm 32 riding round the side of and engaging behind the next tooth of wheel 34. The frequency of operation of the thermal mechanism may be controlled by varying the speed of and the number of teeth on wheel 34.
Patent GB-542167-A (GB)
Title: Improvements in or relating to fastening device and method of making same
IPC: F16B29/00
Filed: 1940-05-03
Abstract: 542,167. Wall plugs; bolts; nuts. DILL MANUFACTURING CO. May 3, 1940, No. 8006. Convention date, Aug. 10, 1939. [Class 89 (i)] [Also in Group XXII] A fastening device particularly for use in connection with air-craft comprises an outer member 10 internally threaded at 16 to fit the threads 17 of an inner member coned at 11 to expand the wall 15 of the outer member to secure it in place. The inner member may be tapped to enable a screwed part to be fixed thereto. The outer member has a non-circular recess 12 for engagement by a tool that has a rotatable sleeve on it formed to engage notches in the flange 19 of the inner part, thus providing for the screwing of one member in the other.
Patent GB-1501508-A (GB)
Title: Variable resistance control device
IPC: H01C10/14
Filed: 1975-02-26
Abstract: 1501508 Variable resistors CTS CORP 26 Feb 1975 [4 March 1974] 8016/75 Heading H1S A variable resistor device comprises a onepiece metal mounting bracket 10 to which is secured a resistance element 20 and a rotatable gear 30 which is actuated by a lead screw 40 mounted in extensions 13, 14 of bracket 10. The extensions have respective abutment members 13c, 14c, which at the limits of rotation of gear 30 are engaged by resilient fingers 33, 34, gear teeth 32a riding over thread 41 of screw 40. Screw 40, which may be of nylon, has a hexagonal adjustment aperture 44 and grooves 42, 43 which are each engaged by two arms of a respective extension 13, 14. A collector ring (11, Fig. 2, not shown) is embossed out of bracket 10 and has an aperture which journals the spindle (30a) of gear 30. Reference has been directed by the Comptroller to Specification 1,135,568.
Patent GB-878219-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/52
Filed: 1958-03-13
Abstract: 878,219. Cathode-ray tubes. RAULAND CORPORATION. March 13, 1958 [March 13, 1957], No. 8048/58. Class 39(1). A high-transconductance gun for a cathoderay tube with a multi-apertured space-charge and control grid 16 has an auxiliary electrode 21 for converging the beam to a cross-over in the space between-the auxiliary electrode and the accelerator electrode system 24, 25. The image of the cross-over is focused on the screen electrostatically or magnetically; as shown a unipotential lens system 26, 27, 28 is used. The multi-foraminated aperture may be comprised by a mesh grid, co-planar with the surface of the control electrode or disposed on either side of it, or the aperture may be comprised by solid part of the control electrode which is pierced by a number of small apertures. The area of the emissive surface of the cathode preferably equals the area of the multi-foraminated aperture 18. In the embodiment of Fig. 4 the auxiliary electrode is a flat washer electrode 41 fixed to the front surface of the control electrode 16 and held permanently at the same potential. A suitable effective spacing between the two electrodes is achieved by reducing the thickness of one or both electrodes in the vicinity of the aperture 18. An off-set gun may be used for iontrapping.
Patent GB-233670-A (GB)
Title: Improvements in or relating to vehicle headlamps and like lamps
IPC: F21V14/02
Filed: 1925-03-25
Abstract: 233,670. Jansen, T. O. D. May 12, 1924, [Convention date]. Mounting electric lamps in lanterns. -In a vehicle lamp, the light source is pivotally mounted so as to swing from a normal position in front of the reflector through an opening in the reflector into an anti-glare position between it and the external casing, the inner face of the casing being preferably blackened behind the anti-glare position of the light source. In one form, the lamp-bulb socket 9 is trunnioned in the forked end 7 of a hollow screwed rod 3 adjustably secured by a nut 5 and a spring 12 to the casing 1, and is operated through a wire 15 to a doublearmed lever 13 on one of the trunnions, a tension spring 14 connected to the casing 1 being attached to the other end of the lever 13. Specification 213,329 is referred to. According to the Specification as open to inspection under Sect. 91 (3; (a), the pivoted lamp bulb is operated by a notched link which engages the edge of the casing and is connected by a spring to a crank on one of the trunnions, the other being provided with a spiral spring. The lamp may be frosted, so that, when swung downwardly into an anti-glare position, the frosted portion is towards the front of the lamp. This subject-matter does not appear in the Specification as accepted.
Patent GB-526352-A (GB)
Title: Shock absorbing means for aircraft landing gear
IPC: B64C25/60
Filed: 1939-03-14
Abstract: 526,352. Shock-absorbers. SOC. DE MECANIQUE GENERALE. March 14; 1939, No. 8148. Convention date, March 18, 1938. [Class 108 (iii)] In a hydro-pneumatic shock absorber for aircraft landing gear, a lower cylinder 5 terminates in a wheel bearing 6 and slides within a casing 1 which carries, by means of a ball joint, a cylinder 10 within the cylinder 5. The cylinder 10 carries a piston 14, and the tube 17, attached to the bearing 6, carries a piston 18 with valve 19, moving in the cylinder 10. The piston 18 and tube 17 allow the passage of liquid from cylinder 10 to cylinder 5 through openings 21, 22. A tapering pin 24 is carried by the cylinder 10 and projects into the tube 17. A byepass 25 through the part 13 carried by cylinder 10 is regulated by screw 26. On landing, the cylinder 5 is forced into the casing 1, the piston 18 sliding in the cylinder 10 with the valve 19 open so that liquid passes freely to the underside of the piston, and no vacuum is produced. On the return stroke, valve 19 closes and liquid below the piston passes into cylinder 5 through the constricted passage 25. Liquid in cylinder 10 also returns to cylinder 5 through openings 21, 22. Compression of the air may be varied by adjusting the length of tube 11, which is connected to the corresponding tube on the associated shock absorber, and to an inflating device.
Patent GB-1378242-A (GB)
Title: Process for the production of thin walled tube from ductile metal
IPC: B21C37/14
Filed: 1972-02-22
Abstract: 1378242 Making tubes JURY & SPIERS PTY Ltd 22 Feb 1972 [25 Feb 1971] 8225/72 Headings B3A and B3Q  A thin walled tube is made by flattening a tube having a relatively thick wall, rolling the flattened tube to reduce the wall thickness, and expanding the flattened tube by fluid inflation. In a first embodiment an extruded brass tube is annealed at a temperature of 650 C. and passed between a pair of flattening rollers 21. The flattened tube 22 is re-rolled between the rollers which are set closer together until the required wall thickness is attained. The flattened tube is then coated in a tinning bath after which the coated tube is cut into lengths. A length of the coated tube is placed in a die 32 having a serpentine passage 35 and one end of the tube is flared by a tapered punch while the other end is sealed by crimping or welding. The tube is then inflated by fluid pressure to form a heat exchanger whose cross-section is as shown in Fig. 8. In a second embodiment a thickwalled tube is formed into a conical shape by a mandrel reciprocating within a series of circumferentially arranged segmented members before the flattening operation.
Patent GB-1458447-A (GB)
Title: Fluid-level sensing device
IPC: G01F23/24
Filed: 1974-02-22
Abstract: 1458447 Liquid level detector KRAFTWERK UNION AG 22 Feb 1974 [22 Feb 1973] 8269/74 Heading G1N (A) A fluid level sensing device comprises a cable 4 wound on rod 4 and bearing against its projections 8 and having within sheath 13 a wire or wires 11, 12 whose resistance is temperature dependent and a second wire or wires 9, 10 as an electrical heater, and an electrical supply 14 for the first wire. It is wound in a helical groove 7, of semi-circular crosssection, of rod 3 which projects into the liquid and is surrounded by a protective tube. Wires 9 and 10 are connected in series or parallel to A.C. source 14 which supplies wires 11 and 12 in parallel via a current metering device whose reading is dependent on their temperatures and hence on the liquid level. A cable 29 with unheated wires 11a, 12a, whose temperature is only affected by the liquid temperature, may be wound on to a similar smaller helical groove 30 and the circuit connected as in Fig. 6, where 16 and 17 are constant resistors. The resistances of wires 11, 12, 11a and 12a vary with liquid temperature in the same ratio.
Patent GB-1123662-A (GB)
Title: Copying machine
IPC: B23B29/034
Filed: 1966-02-24
Abstract: 1,123,662. Copying machine; machine tool details. C. W. BERTHIEZ. 24 Feb., 1966 [24 Feb., 1965], No. 8272/66. Headings B3B and B3T. A copying machine for machining shapes of revolution on fixed workpieces 10a, 10b, 10c, Fig. 1, has a rotating facing head 59, having a tool 84, Fig. 9, held by screws 85 in a radially adjustable slide 66, mounted on a vertically adjustable headstock 1 which also has mounted thereon a template feeler 11 having a holder 16 and a lockable slide (144) running on ball bearings. A cardan shaft 222 connects a barrel section 15 of the headstock 1 to the feeler holder 16 so that radial adjustment of the tool slide 66 causes the feeler holder 16 and slide (144) to move along its slideway. The workpieces are mounted on a rotating support 5 that is movable towards and away from the headstock 1 and has mounted thereon a template 12 aligned with the feeler 11. A servomechanism 265 senses the tracing of the feeler 11 over the template 12 and moves the support 5 accordingly relative to the rotating facing head 59. In operation, the facing head is rotated and the tool 84 is moved radially along its slide 66, the consequent rotation of the cardan shaft 222 moves the feeler 11 across the template 12 to control the position of the support 5 relative to the facing head. Fig. 6 (not shown) shows details of the radial adjustment mechanism for the tool slide 66 and the drive to the cardan shaft 222 contained in the barrel section 15 attached to a milling and boring machine. The facing head 59 is connected by a sleeve (23) to the milling spindle (41) and the axially movable boring spindle (117) carries a rack (111) operating through pinions (101), (91) and rack (87) the tool slide 66. In addition, movement of the boring spindle (117) moves sleeves (241) and (237) to rotate a pinion (235) connected to the cardan shaft 222. The other end of the cardan shaft 222 also has a pinion (205) (Fig. 12, not shown) engaging with a rack (203) on the slide (144). The pinions (235) and (205) may be of different size to allow a scale difference between the template and workpiece. Slides (137) and (141), (142) are provided for initial setting of the feeler 11 which are then locked by screws (187) and discs (188) (Figs. 12 and 14, not shown). In a first modification (Fig. 16, not shown), the workpieces and template are held on a fixed bracket (274) whilst the headstock (la) is moved horizontally under the influence of the servo-mechanism and feeler 11. In a second modification (Fig. 17, not shown), the workpieces are again held on a fixed bracket (274), but in this case the whole vertical column (2b) on which the headstock 1 is mounted is movable horizontally by the feeler 11 and servo-mechanism.
Patent GB-685281-A (GB)
Title: Improvements in or relating to tablet counting and batching machines
IPC: A61J7/02
Filed: 1951-04-11
Abstract: 685,281. Counting-apparatus. IMPERIAL CHEMICAL INDUSTRIES, Ltd., ALDRED, L., and WEBSTER, J. G. April 11, 1951, No. 8383/51. Class 106 (i). [Also in Groups XXX and XL (b)] In apparatus for separating tablets 2 into predetermined batches, the tablets are guided down a shoot 1 and a gate 4 at the bottom is opened to release the predetermined number while the remaining tablets are retained by air pressure or suction. In the form shown, when the valve 9 is opened, air pressure is supplied to a nozzle 3 and to a bellows 8 which operates the gate pivoted at 5. The valve may be operated manually or automatically, e.g. by photoelectric means when a container is placed under the shoot, or by a timing device. Various forms of tablet-retaining nozzles are shown. Several shoots may be used together, having the nozzles connected to a common supply and the gates mechanically coupled or replaced by a single gate.
Patent GB-988962-A (GB)
Title: Improvements in and relating to hydraulic automatic clutches
Inventor: VARADI JANOS
IPC: F16D33/02
Filed: 1963-03-01
Abstract: 988,962. Hydraulic couplings. IKARUS KAROSSZERIA ES JARMUGYAR. March 1, 1963, No. 8384/63. Heading F2C. An hydraulic coupling 4, 6 for a vehicle transmission is mounted on the engine flywheel 1 and incorporates a ring valve 13 which is movable both rationally and axially relative to the driven member by an automatic speed-responsive control comprising spiral arms 9, each carrying a centrifugal weight 10 and secured at its inner end to a hub member 8 and engaging an axial pin 12 at its outer end, the pins 12 also engaging the valve member 13. As the engine speed varies valve 13 is rotated by the pins 12, this movement being converted into an axial movement by radial pins 15 carried by the flywheel 1 and engaging cam slots 14 in the valve 13, Fig. 3. With the engine stationary each pin 15 is located at the end of the shorter inclined cam slot to give a restricted valve opening, but at idling speed the pin is in the position shown, between the inclined slots, to close the valve, and as the speed increases the pin moves along the longer slot to progressively open the valve. A pressure relief valve 17 is fitted. The coupling is shown associated with a one-way clutch with jamming rollers 23 in a cage 24 between a hub 18 and outer race 22, the cage 24 being engaged by spring-loaded radial plungers 26, operated by axial wedge members 27, for unidirectional drive, retraction of the plungers freeing the cage for bidirectional drive. The wedge members 27 are operated by the gear change lever.
Patent GB-477871-A (GB)
Title: Improvements in attachments for increasing the adhesion of motor vehicles on soft ground
IPC: B60B15/26
Filed: 1937-03-22
Abstract: 477,871. Vehicle wheels. ZAVODY TATRA AKCIOVA SPOLECNOST PRO STAVBU AUTOMOBILU A ZELEZNICNICH VOZU. March 22, 1937, No. 8385. Convention date, July 10, 1936. [Class 144 (i)] A disc or spoked wheel 3 adapted for attachment to the hub of a vehicle wheel 1 is fitted with detachable strakes 5 for operation on soft ground. As shown, the strakes are forked to fit over the periphery of the disc 3.
Patent GB-1458294-A (GB)
Title: Conditioner and cleaner for a travelling porous belt
IPC: D21F1/00
Filed: 1974-02-25
Abstract: 1458294 Measuring porosity BELOIT CORP 25 Feb 1974 [28 Feb 1973] 8386/74 Heading G1S [Also in Divisions D 1 and D2] The porosity of a moving belt F is monitored by a pressure gauge 30 connected in a suction line to a head 16 mounted on a carriage 10 movable on a  track 11 across the belt, the gauge 30 being responsive to pressure variations in a chamber 26 communicating with a slot 27 facing the belt.
Patent GB-558191-A (GB)
Title: An initial grain setting appliance for use in a machine for cutting and polishing diamonds and other hard substances having a grain
IPC: B24B9/16
Filed: 1942-06-19
Abstract: 558,191. Diamond &c. polishing machines. ASQUITH, Ltd., W., BURNESS, T. P. N., and JOHNSON, A. June 19, 1942, No. 8406. [Class 60] A device for facilitating the initial setting of the grain of the diamond comprises a tool with a straight edge mounted on a pivoted holder, the dop holder being axially adjustable. The tool O, having a straight edge o, is carried by a pivoted U-shaped member M. The dop A is clamped in the holder B carried in a sleeve which is axially adjustable by means of a nut J. Specifications 555,497, 558,184 and 558,192 are referred to.
Patent GB-1448505-A (GB)
Title: Anchor buoy
IPC: B63B22/02
Filed: 1974-02-25
Abstract: 1448505 Buoys WESER AG 25 Feb 1974 [23 Feb 1973] 8486/74 Headings B7A and B7S A mooring buoy including a slip hook 4 mounted on a part which is pivotable about a horizontal axis, is secured to the seabed by chains (not shown) and is provided with internal floodable chambers connected to flood valves 5 which when opened allow the chambers to flood and reduce the buoyancy of the buoy such that it sinks at least to a depth whereat it is clear of shipping. The inlets to the flood valves 5 are protected by grids to prevent entry of unwanted objects and the flooding rate is such that a rapid sinking speed is attained. Preferably the valves 5 are opened by remote radio control. A float (not shown) is accommodated in a recess in the buoy and is cleared when a predetermined depth is reached this float rising to the water surface and carrying with it supply leads and conduits which enable the valves 5 to be closed and compressed air to be supplied to refloat the buoy.