baber/WOPTO huggingface dataset:
Patent GB-304417-A (GB)
Title: Improvements relating to synchronised electric telegraph systems
IPC: H04L15/32
Filed: 1927-11-15
Abstract: 304,417. Wood, K. L., and Eastern Telegraph Co., Ltd. Nov. 15, 1927. Eliminating effects of disturbing currents; perforated-strip recorders; receivers with mechanical source of power; paper feed for receivers.-Undesired current impulses, such as synchronizing signals or signals periodically transmitted to ensure secrecy, are eliminated at a synchronized receiver or retransmitter by a device which is driven or controlled by the synchronized drive and deenergizes parts of the receiver or otherwise interferes with the selector mechanism to prevent the undesired currents from being recorded or retransmitted. For hand operation a listening operator actuates a thumb lever 34 on recognizing the synchronizing-signal combinations, which are sent during pauses in the signals which during signalling synchronize the apparatus themselves as described in Specifications 213,302 and 234,179. This resuits in latching forward an arm 37 and a paperfeed rod 26 so that paper-feed ceases. The lever 34 also pulls on a rod 45 through a pin 46 and thus rocks a shaft 43 to bring brushes 41a 41<b>, 41<c> into contact with a commutator 39 on a synchronized driving-shaft 18. If the instrument is synchronized the synchronizing signal is received when the brushes are in contact with a metallic segment 40 on the commutator, so that selector magnets 4 are short-circuited and punches 20 are not operated. The perforator, which is of the type described in Specification 28962/13, is therefore ineffective during the reception of synchronizing signals. On the resumption of signalling, a signal impulse arrives when the brushes are in contact with the insulating part of the commutator. The selector magnet appropriate to the signal is therefore energized and depresses a corresponding selector bar 5, 6, which is then thrust forward by a cam 19 so that a bridgepiece 21 is thrust forward and turns a bell-crank lever 48 clockwise. The. nose of the lever moves to the right and releases the lever 37, which is pulled backwards by a spring 37a and allows the paper-feed rod 26 to recommence its motion. The rod 45 and spindle 43 move the brushes out of contact with the commutator, and signal impulses are received until the operator again actuates the thumb lever. The commutator may be replaced by a cam actuating contacts, or the lever 37 may opera-te contacts in series with the brushes. A second commutator displaced through 180‹ is provided for alternative use if the receiver gets out of step. According to a modification the device eliminating undesired impulses is made automatic by moving the brushes by a slow-motion device as described in Specification 289,911 (Figs. 5 and 6, not shown). Specification 269,651 also is referred to.
Patent GB-695980-A (GB)
Title: Improvements in or relating to conveyor systems
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B65G67/60
Filed: 1950-12-11
Abstract: 695,980. Loading and unloading ships; endless belt conveyers. KING, Ltd., G. W. Dec. 11, 1951. [Dec. 11, 1950] No. 30655/50. Classes 78 (i) and 78 (iv). A load such as baggage is conveyed between a shore station 22 and'elevators 18, 19 in the holds of a ship 13 moored alongside a floating pier 12 by endless belt or slat conveyers 20, 21, 10, 11, 14, 16, 15, 17. Each conveyer 20, 21 is so arranged at its point of intersection with the conveyer 11 that its may either convey loads over the top of the conveyer 11 to or from the conveyer 10 or alternatively deliver loads to or receive loads from the conveyer 11. The top flight of each conveyer 20, 21 is led around two sets of rollers 23, 24 and 25, 26 which are mounted on carriers 40 movable towards and away from one another so that the pulleys 23, 26 may be brought into close proximity at a level above the conveyer 11, Fig. 5, whereby baggage may be conveyed on the conveyer 20 direct to the conveyer 10, or separated as in Fig. 4 in which case the upper flight of the conveyer 11 is moved upwards into alignment with the upper flight of the conveyer 20 and baggage is transferred to the conveyer 1]. The pulleys 24, 25 serve as compensating pulleys, being capable of relative  movement so as to maintain the required tension in the belt 20 at all times. The carriers 40 are moved bv pinions 42 engaging rack portions 41 on the carriers, the pinions being driven from a reversible motor 44 through spur gearing 45 and endless chains 46. The upper flight of the conveyer 11 is raised by rollers 48 on an articulated frame 47, Fig. 7, supported by rollers 49 on tracks 50, the central section of the frame being raised by a thruster device 51. The lower flight of each conveyer 20, 21 is led round a compensating gear 28, Fig. 3, which allows for vertical movement of the pier 12 on account of tides. Baggage is transferred between the conveyers 20, 21 and the conveyers 10, 11 and between the latter and the conveyers 14, 15 by deflector members or ploughs 32 which comprise either a row of rollers mounted to rotate on vertical spindles carried by a frame or small belt conveyers mounted on pulleys having their axes vertical. If necessary, rollers adapted to be moved vertically may be provided to raise or lower the upper flight of the conveyers 10, 11 to the level of the upper flight of the conveyers 14, 15 at the junctions of these conveyers. Each elevator 18, 19 comprises a pair of endless chains 33 which drive load-carrying trays 34 having guide rollers engaging tracks 36, 37. Each tray comprises spaced prongs which project into the spaces between the separate endless belts of the conveyers 16, 17. Rollers may be mounted on the prongs to assist the movement of loads thereover. The conveyers 16, 17 may be extensible.
Patent GB-323585-A (GB)
Title: An apparatus for producing a circulation of blood or similar fluids
IPC: A61M1/10
Filed: 1928-10-23
Abstract: 323,585. Brukhonenko, S. Oct 23, 1928. Regulating delivery by varying speed of motor.-Apparatus for producing a circulation of blood or the like through a severed part of an animal comprises a container 2 for the blood, a pump 9 which delivers blood to the severed part 11, and a pump 13 which withdraws the blood and returns it, through a lung 14, to the container 2. The pump 9 has a dished diaphragm 15 operated by an electromotor 17 through an eccentric 16. The discharge pipe 10 has a branch 19 leading to an air-vessel 20 communicating through a pipe 22 to a mercury pressure gauge 23. The storage compartment 24 contains one contact 26 whilst the other contact 25 is at the top of the mercury column. Increase in pressure in the vessel 20 raises the column and completes the circuit through the electromagnet 29. The contact 31 in the motor circuit is thus raised and the circuit is broken. The cup 32 contains a non-conducting fluid and is oscillated by rods and levers 34 - - 38, to prevent welding of the contacts 31, 33. The control of the pump 13 is the same in principle but is reversed in action, i.e., the pump is stopped as the pressure falls and is restarted when it rises. Blood under excess pressure is shunted direct to the container 2 through a vent valve 42.
Patent GB-937670-A (GB)
Title: Improvements in or relating to bearings and stuffing-boxes for rotating shafts
IPC: F16J15/38
Filed: 1960-09-07
Abstract: 937,670. Stuffing-box substitutes. J. K. DAVIES. Sept. 6, 1961 [Sept. 7, 1960 ; Nov. 3, 1960], Nos. 30770/60 and 37748/60. Class 122 (5). A mechanical seal for a rotary shaft 2 comprises a ring 16 rotatable with the shaft and a non-rotatable ring 17 having pins 19 engaging holes 20 in a fixed part 18, the ring 17 being urged into contact with the ring 16 by springs 21 located in the holes 20 and adjustably compressed against the pins 19 by screws 22. As shown in Fig. 3, the ring 16 is attached to a flange 1 secured to the inner race 13 of a ball bearing and the ring 17 is sealed to the outer race 18 by sealing rings 23 compressed between the ring and the race. As shown in Fig. 4, plungers 36 are disposed between the springs 37 and a plate 38 adjustable relative to a sleeve 35 by screws 39 and the non-rotatable ring 32 is sealed to the sleeve 35 by a bellows 40.
Patent GB-1181020-A (GB)
Title: Photographic Emulsions
Inventor: BANNERT KONRAD JERZY
IPC: C09B23/06
Filed: 1967-07-04
Abstract: 1,181,020. Green-sensitive silver halide emulsions. ILFORD Ltd. July 3, 1968 [July 4, 1967], No.30778/67. Heading G2C. A green sensitive gelatino silver halide photographic emulsion comprises, substantive thereto, at least one magenta yielding colour former and in sensitizing amount a cyanine dye of the general formula wherein R 1  represents a halogen atom or a lower alkyl or amino group, R and R 3  are the same or different and represent lower alkyl groups containing at least two carbon atoms, one of R 2  and R 4  is a sulphoalkyl group of the formula -(CH 2 ) n SO 3 H where n is an integer from 1 to 6, and the other of R 2  and R 4  is the same or different said sulphoalkyl group or is an alkyl, hydroxyalkyl, aralkyl, carboxy-substituted aralkyl, or carboxy-substituted alkyl group, an acylsulphamoyl alkyl group of the formula -(CH 2 ) n SO 2 NHCOR 8 , or an alkyl or aralkyl sulphamoyl alkyl group of the formula -(CH 2 ) n SO 2 NHR 9  where n in the last two formulae is an integer from 1 to 6, R 8  is an alkyl group and R 9  is an alkyl or an aralkyl, R 5  represents a hydrogen or halogen atom or an alkyl or amino group, R 6  represents a hydrogen or halogen atom or a trifluoromethyl, cyano or alkoxycarbonyl group, and X is an anion.
Patent GB-139743-A (GB)
Title: Improvements relating to rims of vehicle wheels
IPC: B60B25/20
Filed: 1919-02-11
Abstract: 139,743. Prince, J. A., and Gilles, A. L. Feb. 11, 1919. Tyre attachments to rims.-A tyre of the kind described in Specification 139,863, consisting of a laminated spring core b within a cover a, is mounted on a rim comprising a fixed angle-ring c and a detachable flange d. The flange has a centring-lip f engaging under the rim seat, and is secured by bolts e which are permanently attached to the fixed rim flange d<1>, pass through the tyre edges, and are fitted with distance-sleeves f<1>.
Patent GB-333103-A (GB)
Title: Improvements in and connected with wrenches, spanners or the like
IPC: B25B13/50
Filed: 1929-10-11
Abstract: 333,103. Powell, G. Oct. 11, 1929. Pivoted-jaw wrenches; handles; jaw faces.- A pipe wrench comprises a steel tubular lever 3 flattened at the upper end and secured in the jaw 2 by rivets 5, a jaw 1 pivoted to the lever at 4 .and a rod 7 pressed forward by a spring 6 and carrying rollers 9 pressing on the edges of the jaw 1 to keep the latter engaged with the work. A notch 10 in the edge of the jaw 1 co-operates with the rollers 9 to hold the jaw open to its full extent.
Patent GB-1093006-A (GB)
Title: Improvements in or relating to punching presses
IPC: D06H7/02
Filed: 1965-07-20
Abstract: 1,093,006. Cutting apparatus. J. SANDT A.G. July 20, 1965 [July 21, 1964], No. 30886/65. Heading B4B. [Also in Division B6] A web 4 is intermittently advanced to a punching press 1 by a pair of pneumatically operated jaws 5, which on the feed stroke clamp the web to a freely movable endless conveyer 2 which passes through the press and acts as a punching belt. The jaws are reciprocated by a pair of endless chains 13, 13<1> driven via sprockets 14, 14<1>, an oscillating gear segment 17 and gear 18 and a variable-throw crank mechanism driven by a rack formed on the piston 26 of a double-acting hydraulic cylinder 27 under the control of an electromagneticallyoperated valve (64, Fig. 5). During the return stroke of the jaws 5 the web 4 and conveyer 2 are held stationary by a pair of pneumaticallyoperated clamping jaws 32, 32<1>, in timed relation with the operation of the press 1. The punching belt may be made of sheet steel, or a soft or elastic material such as rubber or a flexible synthetic plastics material such as polyvinylchloride, or a sheet steel coated with such a soft material.
Patent GB-1483362-A (GB)
Title: Production of metal-ceramic dental restorations
IPC: A61C13/08
Filed: 1974-07-12
Abstract: 1483362 Dental prosthesis NATIONAL RESEARCH DEVELOPMENT CORP 4 July 1975 [12 July 1974 8 Jan 1975] 30978/74 and 00804/75 Heading A5R [Also in Division B3] A porcelain-metal dental restoration is produced by firing porcelain on to a layer of metal oxide on a noble metal substrate, the oxide being wetted by the porcelain in the fused state. The invention is described with reference to jacket crowns, bridges and inlays. The substrate may be of platinum, rhodium, gold or silver, and the metal deposited thereon by electrodeposition or vapour deposition to form the oxide may be tin, indium or alloys thereof. The deposited metal may have a thickness of 0.2-2.0 microns, e.g. 0.5-1.0 microns, the substrate preferably being heated to diffuse some of the deposited metal into the substrate before the layer is converted to oxide electrolytically or by heating in air or oxygen. Dental porcelain may be used, e.g. as in Specification 1105111 which preferably contains 40- 50% by weight alumina, feldspar, glass fluxes and metallic pigments. The substrate and porcelain should have the same coefficient of linear expansion. A jacket crown may be made by swaging a platinum foil of 0.001-0.005" thickness around a model of a tooth stump. The foil may be supplied lacquered on the face to be applied against the model. After firing the lacquer is burnt off leaving a gap for cement to fix the crown to the stump. If the foil is not supplied with a pre-deposited metal or oxide layer one is now deposited. Moistened porcelain powder is built up on the oxide in several fired layers beginning with an opaque layer, followed by one or more translucent layers and a veneer layer. Alternatively, porcelain may be bonded to an oxide layer on a gold alloy cast to fit around a tooth model. In Example 4, tin-plated platinum foil is adapted to a silver die prepared from an impression. The foil is removed from the die and trimmed to the internal line angles of the preparation at the gingival floor. Untreated platinum foil of 0.001 mils thickness is now applied to the die to form a matrix which is trimmed just short of the cervical margin of the preparation so as to form a small apron around the preparation. The tin-coated foil is pushed on to the matrix. Alternatively, the inner foil may be layed down first and the outer foil layed over the inner foil. The outer foil is now oxidised, cooled and placed over the inner matrix and porcelain is applied which may be specified by the inclusion of 1-2% zirconium oxide. After staining and glazing, the inner foil is removed so as to allow a porcelain butt fit on the external cervical margin and provide space for cement. In Example 8 a posterior bonded crown is formed by adapting a 0.002 mils thick platinum foil to a silver die. The foil is removed, given a coating of tin, oxidised, re-adapted to the die and coated with porcelain. Varnish on the die provides space for cement. Example 6 applies the invention to repairing bridgework.
Patent GB-1062552-A (GB)
Title: A method of producing bags
IPC: B31B150/00
Filed: 1963-08-07
Abstract: 1,062,552. Carrier bags. KORSNAS G.m.b.H. Aug. 7, 1963 [Aug 16, 1962], No. 31118/63. Heading A4G. [Also in Divisions B5 and B8] A carrier bag has handles 16 (Fig. 10) at the bottom for use when the bag has been filled through the opposite end and sealed. The bottom is rectangular, and the bag is formed from lay-flat tubing or folded web with the bottom formed along a longitudinal fold (2) (Fig. 1, not shown), so that the dimensions can be .greater than could be accommodated in the width of the web or tube. The rectangular bottom may be formed by folding both leading and trailing edges of a length of tubing to block-bottom form 13, 14 (Fig. 10) and then cutting the tubing axially to form pairs of bags with the fold 2 refolded to rectangular form. Alternatively the block-bottom folds 13 may be performed at the folded edge 2 only of a folded web, so that the height of the bag extends the full width of the folded web. The bag may be of paper, cloth, thermoplastic foil or laminates, secured by glueing, sewing or heat-sealing.
Patent GB-1005242-A (GB)
Title: New sulphur-containing lactone derivatives and processes for their preparation
IPC: C07D307/60
Filed: 1963-08-07
Abstract: The invention comprises compounds of the general formula <FORM:1005242/C2/1> where R is hydrogen or an acyl radical, preferably derived from an aromatic carboxylic acid, an aliphatic carboxylic acid having from 1 to 18 carbon atoms or aromatic sulphonic acid; an alkyl group having from 1 to 8 carbon atoms or an aralkyl group.  The invention also comprises the S-trityl ether of b -mercaptomethyl-a -keto-g -hydroxy-butyric acid g -lactone.  The compounds of the above general formula are prepared by reaction of the Mannich base <FORM:1005242/C2/2> in the form of its hydrochloride, with thioacetic acid in the presence of an alkali metal thioacetate. The reaction is advantageously effected in the presence of water and also of an inert organic solvent, e.g. ether, at elevated temperature (most conveniently at the reflux temperature of the solvent mixture). The product, g -lactone of b -acetyl-fluomethyl-a -keto-g -hydroxy butyric acid is best separated from the reaction mixture by solvent extraction, and then isolated by crystallization.  The reaction mixture also contains the corresponding enol acetate of formula <FORM:1005242/C2/3> which, being more soluble than the free enol, is solvent extracted from the reaction mixture but retained in the crystallization mother liquors. This enol acetate may be saponified by treatment with gaseous ammonia dissolved in methanol or ethanol to give an ammonium enolate which on acidification with either a mineral or organic acid gives a further yield of the g -lactone b -acetyl-thio methyl-a -keto-g -hydroxy butyric acid.  This g -lactone may be either etherified or esterified to yield other compounds of the above general formula, e.g. the methyl ether, trityl ether, acetate, stearate and tosylate.  The g -lactone of b -acetyl-thiomethyl-a -keto-g -hydroxy butyric acid of the above general formula where R is hydrogen may be subjected to acid hydrolysis to give the free mercaptan of formula <FORM:1005242/C2/4> The free mercaptan may be etherified with trityl chloride to give the S-trityl ether.  The compounds of the above given general formula are capable of ready conversion into a dilactone thioether by treatment with alkali and into a dilactone persulphide by treatment with ammonia in the presence of air followed by acidification. The former is an important intermediate for the synthesis of cephalosporin C.
Patent GB-245750-A (GB)
Title: Improvements in or relating to fuel pumps
IPC: F02M59/34
Filed: 1925-12-11
Abstract: 245,750. Sulzer FrÞres Soc. Anon. Jan. 10, 1925, [Convention date]. Eccentric-actuated p u m p s ; buffers, springs, and the like; regulating delivery by opening suction valves; valve-gear. - In a fuel pump the plunger 1 is operated by an eccentric rod 5 through a crosshead 2 and a spring 3 arranged between the crosshead and a collar 12 on the plunger. During the delivery stroke the plunger is stationary and the spring is compressed until the delivery valve 9 is opened by a tappet 10, when the plunger is shot forward by the spring. During the suction stroke the end of the crosshead engages the collar 12 and retracts the plunger. The suction valve 6 is opened by a lever 13 and spring 21 and is closed by a spring 11 when the crosshead 2 engages the lever during the delivery stroke. The lever 13 is pivoted on an eccentric which may be adjusted by the engine governor through a rod 14 to vary the moment of closing the valve 6 during the delivery stroke.
Patent GB-783665-A (GB)
Title: Improvements relating to the testing of electron discharge devices
IPC: G01R31/25
Filed: 1955-11-03
Abstract: 783,665. Thermionic valve testing. GENERAL ELECTRIC CO. Nov. 3, 1955 [Nov. 17, 1954], No. 31492/55. Class 37. Apparatus for testing an electronic discharge device comprising means for energizing the heater and for supplying appropriate voltages between the cathode and the remaining electrodes, wherein the latter are supplied over leads respectively containing series resistances and switches, and are connected over other respective resistances to the grid of a thyratron energized and biased to strike when supplied with a high potential due to the absence of a test electronic discharge device or due to an open circuit or intermittency in the electrode circuit selected by closure of the appropriate switch, and to remain non-conductive when supplied with a lower potential due to the passage of the correct current to the selected electrode; whereby intermittency or opencircuit in an electrode connection is indicated. In Fig. 1 the test electronic discharge device is inserted in a holder 25 having appropriate pin sockets, and the heater is energized from battery 28 while the cathode is connected to ground and the negative of battery 1, whose positive is connected directly over resistance 21 to anode 36 and over respective normally open switches 31 and resistances 21 to the remaining electrodes. The positively supplied electrodes are also connected over respective resistances 22 to the grid of a thyratron 2 whose anode is connected to the positive of battery 1 over normally closed switch 15 and relay coil 16 while the cathode is supplied 'from a potentiometer comprising resistance 11 and variable resistance 12 across battery 1 which is adjusted to bias the thyratron to strike at a predetermined positive grid voltage. In the absence of a test device in the holder, the thyratron strikes due to a high positive grid voltage and relay 16 operates an indicator. If a diode is then inserted with switches 31 open, and switch 15 is momentarily opened to de-energize the thyratron, the latter remains non-conductive if the tube is satisfactory, due to the drop in grid voltage due to the normal anode current in resistance 21, to a value below that set by adjustment of resistance 12. Open circuit of the anode connection (or intermittency on vibration of the tube) increases grid voltage of the thyratron, which strikes and operates relay 16. For testing multi-electrode tubes, the appropriate switches 31 are closed and resistance 12 is adjusted so that the thyratron is just non-conductive when the relevant electrodes carry their normal currents but strikes when open circuit or intermittency is present in any electrode connection. Relay 16 may also operate a rejecting device for faulty electronic discharge devices, in an automatic sequential testing apparatus. In a modification (Fig. 2, not shown), the battery 1 is replaced by an unsmoothed half-wave rectified A.C. supply so that the thyratron is automatically de-energized after each positive pulsation of voltage.
Patent GB-764982-A (GB)
Title: Improvements relating to fork lift trucks
IPC: B66F9/08
Filed: 1954-11-01
Abstract: 764,982. Fork lift trucks. REID, J. M. March 7, 1955 [Nov. 1, 1954], No. 31512/54. Class 78 (3). In a fork truck the lifting carriage 14 is moved along the upper telescoping guides 10 by a cable 17 which is anchored to the truck frame and carriage at 18, 19 respectively, and passes over a pulley 16 journalled on the guides 10; whilst these guides are movable along the fixed guides 12 by a cable 23 which is anchored to the truck frame and guides 10 at 24, 25, respectively, and passes over a pulley 22 adapted to be raised and lowered by a ram 20.