baber/WOPTO huggingface dataset:
Patent GB-591786-A (GB)
Title: Improvements in indexing means for books or the like
IPC: B42F21/00
Filed: 1944-10-09
Abstract: 591,786. Books &c. OPPENHEIMER, H. E. Oct. 9, 1944, No. 19362. [Class 16] Indexing.-A book or similar assembly of sheets 18 is provided on one edge with narrow index markings which become legible only when expanded by fanning out the book edge. In one form, Fig. 2, each group is indicated by a symbol 22 such as a triangular mark which may extend over the thickness of the group with its apex coincident with either the first or last of the leaves in the group. Adjacent to the symbol are markings 24 which may be alphabetical or numerical and which only become legible when the book edge is pressed back as shown to make an expanded surface. The markings may be partly on one side and partly on the other of the symbols, and both are arranged in diagonal lines from top to bottom of the book. To facilitate finding a particular page, a symbol and alphabetical marking 32 may be printed on the flat faces of the first sheet of each group in registration with the edge symbol, and also, the sheet preceding the endmost sheet of a group may have an arcuate cut away part 34 above the symbol on the next sheet to assist further the selection. Preferably, the groups comprise substantially the same number of sheets, and if desired, each sheet may have an index symbol formed by printing a mark on the flat face of the sheet which runs up to the edge thereof. The alphabetical markings may be formed by such printings on the flat face of the sheet or by printing on the indexing surface of the book when the latter is flexed. In another form, only the endmost sheet of each group is provided with a symbol. The indexing surface may be increased by making it of saw-toothed form or of arcuate shape.
Patent GB-1260088-A (GB)
Title: Push-button particularly for use in controlling electrical apparatus
IPC: H01H9/16
Filed: 1970-04-22
Abstract: 1,260,088. Indicators for push-button switches. SOC. D'APPAREILLAGE ELECTRIQUE SAPAREL. 22 April, 1970 [30 April, 1969], No. 19385/70. Heading H1N. A push-button actuator for a switch, etc. has a window 2 through which can be seen a member which is coupled to be moved by the pushbutton and carries markings indicative of the position of the push-button. In Fig. 1 the member is a drum 3 having a red portion 9 and a green portion 10 the drum being pivotally connected to a rod 5 whose other end is fixed. In Fig. 2 the member is a resilient tape 12 which slides through the push-button.
Patent GB-220642-A (GB)
IPC: F16H7/04
Filed: 1924-08-15
Abstract: 220,642. Dutkiewicz, V., (Assignee of Isambert, C.). Aug. 17, 1923, [Convention date]. Positive-driving bands and pulleys.-Positivedriving ropes g engage grooves b in the pulleys and are formed in equal lengths interconnected by cross-pins e engaging notches d in a pulley rib c. The rope lengths are secured in openended slots cut in the ends of the pins e by blocks i recessed to fit in the slots and flared at their ends i'. A loop on the rope end is secured in the block by a pin x and soft metal y. Each pair of blocks is retained in the slot in the crosspin e by a pin j.
Patent GB-193809-A (GB)
Title: Improvements in and relating to frame-saws
IPC: B23D51/03
Filed: 1922-07-14
Abstract: 193,809. Delmay, J. Feb. 22, 1922, [Convention date]. Void [Published under Sect 91 of the Act]. Addition to 175,795. Saws.-The frame-saw described in the parent Specification is formed with modified tensioning- means, and means for securing the blade to the saw, and for holding the device as folded up for transport in the folded condition. Hooks 17, Fig. 2, on the cross member 15 engage eyes 19 on the vertical members 4 of the frame to hold the device folded with the blade 16 and tensioning wire 1 inserted in slots in the members 4, 15. The blade 16 is secured in the arms 4 bv means of U-shaped pins 12, Fig. 5, permanently secured to the blades and formed with bent parts 13 which are received in recesses 10 in the arms 4, these recesses being metal-lined if soft wood is used. The pins 12 are inserted in the holder for the blade by the aid of grooves 11. The tensioning-cable 1, Figs. 3 and 4, is tensioned by means of a pivoted finger 5 acting on a plate 3 formed with a hook 2 for receiving one end of the cable, or by means of a lever 7 held by a catch 9 when the cable is tensioned. A small angleiron 23, Fig. 3, may be secured in the recess of the catch for the upper end of the cable 1.
Patent GB-1173719-A (GB)
Title: Optical Resolution of 1-(3,4,5-Trimethoxybenzyl)-6,7-Dihydroxy-1,2,3,4-Tetrahydroisoquinoline
IPC: C07D217/20
Filed: 1968-04-25
Abstract: 1,173,719. 1 - (3,4,5 - Trimethoxyphenyl)-6,7- dihydroxy - 1,2,3,4 - tetrahydroisoquinoline. TANABE SEIYAKU CO. Ltd. 25 April, 1968 [27 April, 1967], No. 19533/68. Heading C2C. The title base (racemate) is resolved by treatment in solution with an optically active organic acid, and separating the resultant diastereoisomeric salts by fractional crystallization; the salts may be treated with an inorganic acid to form the corresponding inorganic acid addition salts. The optically active acid is e.g. d- or l-tartaric dibenzoyl-D-tartaric, D-(-)- quinic or D-10-camphorsulphonic acid. Specified products are salts of the d- and l-isomers with d-tartaric acid and with HCl. The racemate is synthesized from 2-(3,4-dihydroxyphenyl) ethylamine and 3,4,5-trimethoxyphenylacetaldehyde under acid conditions. Therapeutic compositions having bronchodilating and blood pressure lowering activity comprise optically active acid addition salts of 1 - (3,4,5 - trimethoxyphenyl) - 6,7 - dihydroxy- 1,2,3,4-tetrahydroisoquinoline, in association with a therapeutically acceptable carrier.
Patent GB-229943-A (GB)
Title: Improvements in cam grinding and milling machines
IPC: B24B19/12
Filed: 1924-08-18
Abstract: 229,943. Churchill Machine Tool Co., Ltd., and Asbridge, H. H. Aug. 18, 1924. Milling-machines. - In a machine for grinding or milling cams for internal - combustion engines a number of independently mounted cutters are controlled by master cams and the work is reciprocated axially during cutting. The cutters p, each driven by a pulley 21, are mounted on slides i carried by levers h pivoted at g and rocked by adjustable. rollers m and master cams o on a shaft n. The pivots g are carried by slides b adjustable along the machine by racks and pinions e, the rollers being withdrawn from the cams during traversing, by screws 20. The work 2, Fig. 2, is supported by a headstock v, Fig. 3, and a tailstock w, both of which are mounted on a table u reciprocated by a link 19 adjustably pivoted to a slotted lever 17 oscillated by a link 14 from a crank 15 worm driven from a shaft 13 rotated by gearing 12 from cone pulleys 4. The headstock spindle is rotated by a sliding connection comprising discs z and projections y, the rotation being synchronized with that of the shaft n by a vertical shaft 3 driven from the cone pulleys by bevel gears 7 and carrying a worm drive 9, 11 at each end. A clutch 8 allows the shaft 3 to be stopped without stopping the reciprocations of the table u.
Patent GB-678065-A (GB)
Title: Improvements in smelting of zinciferous ore
IPC: C22B4/02
Filed: 1950-08-04
Abstract: In a method of smelting an oxidic zinciferous ore in an electric furnace, the ore, containing zinc oxide and iron oxide, and a carbonaceous reducing agent, in amount sufficient to reduce all the zinc oxide and such of the iron oxide as will leave in the slag an amount of iron oxide equivalent to 1 1/2 -6 per cent of iron, are charged as a loose, dry mass on to the surface of the slag in the vicinity of the electrodes, the heating being by a combination of submerged arc and slag resistance and so controlled that the temperature of the slag does not exceed 1450 DEG C, the zinc being obtained as a vapour free from dust-forming impurities which is then condensed.  The iron oxide may be added to the ore or may be present as a constituent thereof.  Silver and gold may also be present, the major portion being obtained from the molten iron under the slag layer and the remainder from the zinc.  The ore may be charged from above with a small quantity on the banks of the furnace.  The size of the particles in the charge should not exceed 1/2 -inch diameter. Specifications 601,246, 601,247, 620,644, 648,529 and 657,205, are referred to.
Patent GB-153662-A (GB)
Title: Improvements relating to the floats of float operated mechanisms
IPC: F02M37/02
Filed: 1919-08-09
Abstract: 153,662. Higginson, J., and Arundel, H. Aug. 9, 1919. Vacuum apparatus.-The float of float-operated mechanism in which the float is subjected alternately to relatively low and high pressure, such as is used in vacuum fuel-feed apparatus for internal-combustion engines as described in Specifications 12835/11, 20191/14, [Class 79 (iii), Motor vehicles, Arrangement &c. of parts of], 11992/15 and 138,400 is provided with means for removing leakage liquid therefrom during the period of low pressure. In one form, as used in a vacuum fuel-feed apparatus, the float rod j is hollow and has two perforations, one m outside, the other k inside the float g. During the period of atmospheric pressure in the chamber a, atmospheric pressure is established in the float g. During the period of vacuum in the chamber a, the leakage liquid in the float is forced by the atmospheric pressure in the float through the float-rod into the vessel a. The hole k may be enclosed in a hood with a serrated lower edge. In another form, the interior of the float is connected to the chamber a by a separate tube with perforations m, k. In another form, communication is controlled by two valves, one opening inwards, the other outwards.
Patent GB-1207888-A (GB)
Title: Squaring circuit
Inventor: NELSON RAYMOND LARTER
IPC: H03K5/01
Filed: 1968-04-25
Abstract: 1,207,888. Pulse shaping circuits. EASTMAN KODAK CO. 25 April, 1968 [25 April, 1967], No. 19655/68. Heading H3T. A squaring circuit comprises two normally saturated switching devices (transistors 6 and 7), two unilateral conductors 8, 9, a capacitor 10, two further unilateral conductors 11, 12 and a trigger circuit 13 arranged substantially as shown. If the input signal goes positive a capacitor 10 will charge through 7 and 8 and its voltage will reach a point such that the threshold of diode 12 is overcome and a trigger circuit such as a Schmitt trigger switches over. A similar response occurs to a negative signal. If the duration of the signal is insufficient the threshold will not be reached and if the amplitude is insufficient the threshold of diodes 8 and 9 will not be exceeded and the capacitor will not charge. The threshold level of the circuit may be adjusted symmetrically by varying resistor 5 and asymmetrically by varying resistor 14 or 15 or the supply voltages.
Patent GB-722403-A (GB)
Title: Improvements in pedal bicycles, motor assisted bicycles and the like
IPC: B62M3/00
Filed: 1950-08-08
Abstract: 722,403. Securing cranks on shafts. BEZET, B. B, Aug. 8, 1950, No. 19690/50. Class 80 (2) In the cotterless non- rotatable clamping of the pedal cranks 3 on the bottom bracket spindles 6 in pedal bicycles, motorassisted bicycles and the like, a closed slot 1 extends longitudinally from the central mounting hole 2 either along the adjacent part of the pedal crank arm 3 towards the pedal mounting boss 7, Fig. 2, or into an arm 8, Fig. 3, extending away from the boss 7. A bolt 5 pulls the sides of the slot 1 together and clamps the pedal crank boss 9 around the spindle 6.
Patent GB-829231-A (GB)
Title: Improvements relating to shoe heels
IPC: A43B21/00
Filed: 1957-06-24
Abstract: 829,231. Moulding shoe heels. FRATELLI ROTELLI S.r.L. June 24, 1957 [June 22,1956 ; March 6, 1957], No. 19787/57. Class 87(2). [Also in Group VII] Shoe heels are produced by injecting or vigorously compressing plastic or elastomeric material into a mould cavity 17 in which a tubular metal reinforcement 15 is held by a wooden rod 16A and a wooden reinforcement 12A has been located. The moulding pressure compresses the block 12A to the size indicated by the dash line 12. In a modification in which the tube extends to the top of the mould it is located by a peg on the top mould member while the block 12A is retained by a spike thereon. Suitable plastic or elastomeric materials are used such as those having a styrolic or an ethylenic base or Neoprene or Butadiene rubbers may be used.
Patent GB-1237254-A (GB)
Title: Particle detecting apparatus
Inventor: LAWSON DENNIS ILLINGWORTH
IPC: G08B17/107
Filed: 1968-04-26
Abstract: 1,237,254. Particle detecting apparatus. NATIONAL RESEARCH DEVELOPMENT CORP. April 21, 1969 [April 26, 1968], No. 19884/68. Heading G1A. Particle detecting apparatus comprises a laser A for generating a beam of electromagnetic radiation, and detector means J spaced from the optical path of the laser, the detector means being responsive to incidence thereon of electromagnetic radiation greater than a predetermined amount scattered from particles in the space S traversed by the beam, and alarm and/or fire control means C for activation by the detector in response to raid incidence. As shown, a laser A produces a beam focused by a lens system E at a point D, and a photo-electric element J is shielded from direct radiation by a shield B. On activation of detector J, alarm and/or fire control means C may be set off and a sprinkler system may thereby be brought into operation. To extend the coverage of the laser beam a number of mirrors may be employed to give a light path of zig-zag form, and the apparatus may be located near the ceiling of a building to detect smoke and other condensates caused by a fire.
Patent GB-1067765-A (GB)
Title: Checking arrangement for the operation of a cooling device
Inventor: KUTSCHBACK ERNST
IPC: G06F3/06
Filed: 1964-05-13
Abstract: 1,067,765. Selective signalling. BUCHUNGSMASCHINENWERK KARL - MARX - STADT VEB. May 13, 1964, No. 19894/64. Heading G4H. The operation of a code converter is checked by converting its output signals back to the original code and comparing the result with the input signals. When a punch is being controlled the signals that are converted back to the original code could be derived from contacts actuated by the punch.
Patent GB-847123-A (GB)
Title: Improvements in or relating to cooling systems for nuclear reactors
Inventor: FAWCETT SYDNEY
IPC: G21C1/12
Filed: 1957-06-24
Abstract: 847,123. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. June 24, 1958 [June 24, 1957], No. 19905/57. Class 39(4). A moderator structure for a nuclear reactor has fuel channels and additional vacant channels. Throttling means are provided for each element so that the moderator coolant temperature rise is greater along the vacant channels than along the fuel channels. The moderator may be graphite and the coolant nitrogen. Specification 847,122 is referred to.
Patent GB-1446540-A (GB)
Title: Swing clamp
IPC: B23Q3/06
Filed: 1975-05-12
Abstract: 1446540 Workpiece clamping OWATONNA TOOL CO 12 May 1975 [11 July 1974] 19907/75 Heading B3B A swing clamp comprises a body 10, a pivot shaft 22 rotatably mounted within a bore 40 in the body and a clamp arm 20 pivotally mounted on the shaft 22 so that pivoting of the shaft 22 in the body 10 swings the arm 20 from an inoperative position to a position in which clamping end 31 overlies a workpiece 15 to be clamped, the body housing two operating pistons (60) (61) (Fig. 3, not shown) at least one of which is operable by fluid pressure and which act respectively against opposite ends of a rocker member 50 formed on the end of shaft 22 and shaped so that a curved surface is contiguous with the wall of the bore 40, to swing the arm 20, and a fluid pressure clamping piston 32 which is engageable with one end of the arm 20 when the arm is in the operative position. Fluid pressure can be supplied to the two swing pistons (60) (61) through respective sets of identical passageways in the body. At the end of the swinging motion fluid is sequentially supplied to cylinder 33 to extend the piston 32 to clamp the workpiece.
Patent GB-357284-A (GB)
Title: Carburettors for internal combustion engines
IPC: F02M3/12
Filed: 1930-07-01
Abstract: 357,284. Spray carburetters. ARMSTRONG SIDDELEY MOTORS, Ltd. and CANTRILL, H., Park Side, Coventry. July 1, 1930, No. 19923. [Class 7 (iii).] A slow-running duct 4 is connected with the main air passage 5 by three passages 2, 3, 13, the passage 2 being placed above the closed position of the throttle valve 6. The passages 2, 3 communicate with one another through a small hole 12. Air enters the duct 4 through a duct 8 and the upper passage 2 has the smallest, and the middle passage 3 the largest bore. As the throttle valve 6 is opened, the passages on the inlet side of the throttle valve change over from acting to dilute the slow-running mixture delivered by the preceding passage into the mixture delivery passages. The invention is particularly applicable to a carburetter as described in Specification 273,891, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for
Patent GB-147884-A (GB)
Title: Improvements in and relating to voltametric electricity meters
IPC: G01R22/02
Filed: 1920-07-09
Abstract: 147,884. Siemens Schuckertwerke. March 11, 1919, [Convention date]. Addition to 147,879. Electrolytic meters.-The metal plate described in the parent Specification is replaced by a conducting screen arranged at least partly on the voltameter vessel. In Fig. 1 the screen is shown as a tinfoil band 30 stuck on to the surface of the voltameter vessel 4 so as to separate the parts of the vessel that are in contact with the currentcarrying parts such as the leads 22, 23, 24 and series resistance 5 connected to the cathode 18 from that part which is in contact, through a bed of plaster of paris 26 with the iron casing 25 of the meter. The tinfoil band 30 is connected by a wire 31 with the anode 16 and with one end of the shunt resistance 3. In a modification, Fig. 2, the screen consists of wire rings 33, 34, 35 on the voltameter vessel and a conducting sleeve 36 on the insulating sleeve 37 of the connecting-wires 23, 24.
Patent GB-1471869-A (GB)
Title: Integrity monitoring system for storage tank insulations
IPC: G01M3/16
Filed: 1973-04-26
Abstract: 1471869 Monitoring fluid containers electrically MARINE & INDUSTRIAL DEVELOPMENTS Ltd 26 April 1974 [26 April 1973] 19951/73 Heading G1N [Also in Division F4] A container for a cryogenic fluid has walls of steel 2, Fig. 2, internally lined with three layers of briquettes 5 of thermally insulating material e.g. foamed polyurethane, held together by urethane rubber 6, the continuous sheets of rubber 7, 8 each containing a conductor whose resistance is monitored. The conductor 11 in the innermost layer 7 is at the temperature of the cryogenic fluid. The conductor 12 in the middle layer 8 has a temperature which falls when the inner thermally insulating layer is ruptured, and the consequent change in resistance is used to operate an alarm. The conductor may consist of a zig-zag wire or strip, or a sheet, or a layer of metal on the surface of the insulating material. A plurality of separate conductors are used to cover the wall surface to enable a fault zone to be identified. In an alternative embodiment, the conductor 11 is located behind a fluid-impervious membrane and the appropriate conductor section breaks when the membrane is ruptured.
Patent GB-324002-A (GB)
Title: Improvements in and relating to dyestuffs
IPC: C09B67/28
Filed: 1928-07-09
Abstract: 324,002. Tonkin, R., Wilson, J. S., Thomas, J., and Scottish Dyes, Ltd. July 9, 1928. Dye preparations; particular temperatures, drying at. - Finely divided anthraquinone vat dyestuff powders are made by drying watery pastes of the dyestuffs at temperatures not exceeding 50‹ C., with or without reduced pressure. Dextrine or other dispersing agents may be added during or after the drying process, or the products may be ground with soap after drying. In examples (1) caledon brown R standard paste is dried slowly at 50‹ C. in an oven, (2) caledon blue R standard paste is mixed with dextrine and dried, and (3) caledon red BN standard paste is mixed with soap and dried in a vacuum oven.
Patent GB-820240-A (GB)
Title: Improvements in or relating to optical filters
Inventor: JENKINS JAMES ARCHIBALD
IPC: G02B5/22
Filed: 1952-08-07
Abstract: An optical filter with a high transmission for wavelengths of 2 to 3 m  comprises a film of amorphous tellurium on a transparent support e.g. glass.  In a deposition chamber tellurium in a molybdenum boat is so heated that it vaporizes slowly and the thickness of deposit on the support is monitored. The process is characterized by the omission of a vapour trap from the evacuation system, only a backing pump and a mercury pump being used to maintain a pressure of between 1 and 2 microns of mercury vapour in the chamber.
Patent GB-478702-A (GB)
Title: Improvements in and relating to current impulse transmitters
IPC: H04M1/515
Filed: 1936-07-20
Abstract: 478,702. Electric signalling systems. NATIONALE TELEPHONUND TELEGRAPHENWERKE GES. July 20, 1936, No. 20076. Convention date, July 20, 1935. [Class 40 (i)] [Also in Group XL] In impulse - transmitting apparatus for sending a predetermined code signal, the code elements are mounted helically on a rotating drum which moves axially during its rotation and is restored by axial movement only. In the drum 5 shown, the helix has seven turns each containing six groups 58 of cam members so that during seven rotations of the drum, 42 Baudot-code signals may be transmitted. On energization of a magnet N, the movement of its armature 25 permits spring 16 to rotate a pivoted arm 17 which through a projection 17<1> moves also a further arm 22. The latter, which is latched by pawl 18, frees a member 32 on a rocking fork 35 which then by means of pins 34 moves a clutch disc 40 on the shaft of drum 5 into engagement with a driven disc 39. At the same time, arms 14, 15 are moved, causing knife members 11a, 11b and a projection on arm 14 to be inserted in the groove of the helix so as to produce axial movement of the drum during rotation, Near the end of the seventh revolution, a projection on the drum causes members 11a, 11b to be withdrawn but a projection 54 hooks behind a fixed projection until the revolution is complete. The drum is then restored axially to normal by springs attached to members 50, 60 and extending through the drum. Cam-controlled off-normal springs are provided. The cam teeth of the code elements are inclined so that the impulse-controlling spring 61 slides smoothly, and may be formed with lateral slots so as to be easily broken off to form any desired code. The drum shaft 37 is removably held in its bearings by a clip fastening. Several different code signals may be transmitted from a single instrument.
Patent GB-332380-A (GB)
Title: Improvements in or relating to apparatus employed for printing photographs
IPC: G03B27/02
Filed: 1929-07-01
Abstract: 332,380. Booth, W. July 1, 1929. Printing-apparatus.-In contact-printing apparatus wherein an electric lamp is used as lightsource, the pressure back is retained in contact with the sensitive material during exposure by electromagnetic means which is connected in the circuit of the lamp. An automatic timing-switch of the kind described in Specification 328,463, may also be included in the circuit. As applied to a contact printing-box 3 having a doublehinged lid 4 to press the sensitive paper against the negative 5, the arrangement comprises a pair of electromagnets 7 whose windings are in series with a printing-lamp 8 preferably of high internal resistance, and also, if desired, with the aforementioned automatic timing-switch. The armature 6 of the electromagnets is mounted on the lid 4, which may also be provided with spring means tending to urge it into the open position.