baber/WOPTO huggingface dataset:
Patent GB-919208-A (GB)
Title: Improvements in or relating to the detection and/or analysis of low concentrations of gases and vapours
Inventor: LOVELOCK JAMES EPHRAIM
IPC: G01N27/66
Filed: 1958-09-12
Abstract: 919,208. Ionization chambers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 25, 1959 [Sept. 12, 1958], No. 29263/58. Addition to 882,977. Class 39 (1). [Also in Group XXXVI] An ionization chamber 11, Fig. 1, has an insulating plug 13 closing one end and supporting the metal capillary 16 of a gas chromatography column. As described, a brass chamber 11 is coated with a source 21 of alpha particles such as radium or radium D or with a strontium or tritium source of beta particles. The lower end is closed by a PTFE plug 13 having an extension 17 supporting the metal capillary 16 of a gas chromatography column which may form one electrode. The end of the extension 17 is bored to form a chamber 18 which may contain an electrode in the form of a gold wire 19 supported by the tube 16 end having a beaded or pointed end 20. Alternatively, a porous metal plug electrode 23, Fig. 2, may be used. The inside of the capillary 16 is coated with an involatile hydrocarbon oil fraction. A scavenging gas such as argon, nitrogen or air is passed through the chamber via ports 14, 15. A wire gauze shield may be interposed between the port 14 and the chamber 18.
Patent GB-619546-A (GB)
Title: Improvements relating to polarized electric relays and like magnetic devices
IPC: H01H51/32
Filed: 1946-10-02
Abstract: 619,546. Telephone instruments; receivers. CARPENTER, R. E. H. Oct. 2, 1946, No. 29384. [Class 40 (iv)] [Also in Group XXXVII] In a polarized electromagnetic relay, telephone receiver or other instrument for converting electrical into mechanical vibrations or vice versa, the armature 13 oscillates between two parallel polepieces 3 projecting inwardly from legs 4 and spaced apart by distance pieces 12, its axis of oscillation being also parallel to the polepieces. Fig. 4 shows a relay, the magnetic circuit and principle of operation of which is similar to that in Specifications 315,496, [Class 40 (iv)], and 559,047. When the parts are assembled the legs 4 of the polepieces 3 abut against the laminations 23 and a pair of permanent magnets 9, only one of which is shown, project on opposite sides of the armature 13 and overlap in a similar manner to the polepieces 3, similar poles being adjacent. The frame also carries fixed contacts which may be of the kind described in Specification 484,472, [Group XXXVII], and are also arranged on opposite sides of the armature. Fig. 5 shows part of a slight modification in which the magnets 9 are replaced by magnets 34 having unlike poles on their opposite faces and which magnetize respective polepieces 36. Fig. 7 shows a further modification, the magnetic structure of which is a development of that shown in Specification 172,717, [Class 38 (v)]. In this, operating coils 21a, 21b surround the armature 13 which oscillates between poles 45 magnetized by a permanent magnet 40 with poles on its opposite faces. Fig. 9 shows a telephone receiver in which the armature 13 vibrates between two polepieces 37, 38 which are in the form of rectangular frames and are spaced apart by a magnet 40 with poles on its opposite faces. The armature passes through the voice coils 21a, 21b.
Patent GB-884828-A (GB)
Title: A semi-conductor rectifying stage for a peak-programme meter
IPC: G01R19/04
Filed: 1957-09-18
Abstract: 884,828. Voltage and current measurements. MURRAY, J. S. Sept. 17, 1958 [Sept. 18, 1957; Sept. 25, 1957], Nos. 29396/57 and 30154/57. Class 37. [Also in Group XL (c)] An audio frequency programme signal to be monitored is applied by the arms of the earthed centre tap secondary of input transformer 11 to the base electrodes of transistors 12, 13, whose collectors are connected to a negative voltage source returned to the centre tap, and whose emitters are connected to a shunt capacitance resistance time constant circuit 14, 15 also returned to the centre tap. The charge time of the capacitance resistance circuit is short and its discharge time is long so that direct voltage across 16 represents the peak input level and decays more slowly than the programme signal envelope. This voltage is converted by a semi-conducting diode bridge (not shown) into a logarithmic signal which is D.C. amplified to operate a decibel meter. The charging time may be lengthened by series resistence inserted between the capacitance and the emitters. The Provisional Specification mentions application to peak voltage measurement of an audio modulated wave.
Patent GB-1210250-A (GB)
Title: Reducing vibration in engine assemblies
Inventor: HERON VICTOR
IPC: F02B75/02
Filed: 1967-09-27
Abstract: 1,210,250. Balancing. V. HERON. Sept. 27, 1967, No.29403/70. Divided out of 1, 210, 245. Heading F1M. A rotationally balanced engine assembly has a crank-shaft 61 at least one piston 67, 68 connected to the crank-shaft, a counter flywheel 75 gearing 62, 63 inter-connecting the crank-shaft and counter flywheel so that they are forced to turn together at fixed speed ratios and so that the counter flywheel turns in the opposite direction to the crank-shaft and fluid impeller means 74 connected to a single shaft (which may be the crank-shaft) for transmitting substantially all the power of the engine out of the engine assembly. The algebraic sum of the moments of inertia about axes parallel to the crank-shaft of all the parts geared together, including part of the means for transmitting power, each multiplied by the positive or negative ratio of its speed relative to the speed of one shaft is approximately zero. The rear end of the crank-shaft carries an aluminium and steel flywheel and cooling air fan 78 that also includes the rotating magnet 73 of the magneto.
Patent GB-740004-A (GB)
Title: Improvements in or relating to shoe shank stiffeners
IPC: A43B23/22
Filed: 1952-11-21
Abstract: 740,004. Shoe shank stiffeners. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Nov. 20, 1953 [Nov. 21, 1952], No. 29422/52. Class 17 (2). A metal shank stiffener 10 having ribs 12 is attached to a fibre board shank and heelpiece 11 by prongs 14. The prongs 14 are struck from the edge of the stiffener and are formed with long and short edge faces 16, 18 and an end face 20 at an acute angle to the face 16 and at an obtuse angle to the face 18 so that a sharp edge 22 is formed offset from the stiffener edge, thus reducing the tendency for the prongs to weaken the piece 11.
Patent GB-173366-A (GB)
Title: Improvements in or relating to guards for scutchers and like machines
IPC: D01G31/00
Filed: 1920-10-19
Abstract: 173,366. Hawksley, J. M., and Hawksley, A. Oct. 19, 1920. Guards for the lap rollers of openers, scutchers, &c. A curved plate 8 pivoted at 9 is supported by studs 12 upon the plate projecting into inclined slots 11 in cranked brackets 10 fixed to the rack heads 5. The rack heads and curved plate are raised together as the diameter of the lap increases, so that the plate always forms a guard for the hands of the operator. The brackets may have inclined T-shaped arms.
Patent GB-271339-A (GB)
Title: Apparatus for writing in the dark
IPC: B43K7/00
Filed: 1926-11-22
Abstract: 271,339. Reisch, E. Nov. 22, 1926. Drawings to Specification. No Patent granted (Sealing fee not paid). Pencil holders.-In order to facilitate writing in the dark a pencil holder is provided with a ring of luminous material near the point.
Patent GB-298651-A (GB)
Title: A furnace for the sintering, burning, and roasting of substances
IPC: B01J6/00
Filed: 1928-10-13
Abstract: 298,651. Loesche, E. C. Oct. 14, 1927, [Convention date]. Electrode furnaces. -In a furnace for the burning, roasting and sintering of materials the flame from a burner c, or an electric arc is directed on to a heap of the material which is continuously maintained and renewed by an underfeed device h. The heap may take the form of a cone or pyramid, and the treated material, which gradually rolls down from the heap, is withdrawn through side doors e<1>, e<2>. Surplus heat may be utilized for the generation of steam by arranging water tubes g<1>, g<2> within the heating chamber. Air for combustion is supplied through passages d', d<2> and the products of combustion are exhausted through flues f<1>, f<2>. A modification without a steam generator is described.
Patent GB-334410-A (GB)
Title: Improvements in or relating to casings for power transmission gearing
IPC: F16H57/031
Filed: 1929-09-30
Abstract: 334,410. Renold, Ltd., H., Simpkin, F. W., and Whiteley, H. Sept. 30, 1929. Baths.-In a sheet-metal oil-retaining casing for chain gearing comprising two parts 10, 12 fitting together on opposite sides of the geared shafts, external gutters 26, 32, 40 for catching leaking oil project from the lower part 12 and together extend completely around the casing. The edges of the upper part 10 fit within the edges of the lower part 12 and are gripped by steel strips 24 secured to the part 12. The gutters 26 are disposed adjacent the upper side edges 18 so a to serve as stiffening flanges therefor, and are covered by stiffening flanges 30 projecting from the part 10. The gutter 32 is in the form of an open trough extending around the lower end and along the sides of the part 12 to beyond the lower open ends of the gutters 26 which drain into the trough. The end part of the trough is closed by a hinged cover 34 and serves as a filling opening, holes 36 being provided for the passage of oil from the trough into the casing. The trough has an overflow opening 38, and a length of wire 37 is soldered to the inside to indicate the correct oil level. The gutter 40 extends around the upper end of the part 12 from points beneath the upper ends of the gutters 26, to which it is secured. That part of the gutter 40 which passes around the end of the casing is covered by a flange 44 projecting from the part 10. Oil caught in the gutter 40 returns to the casing through holes 42. An extension 46 of the flange 44 is secured to a flange 50 projecting from the gutter 40 by a swivel bolt 48, while a spring clip 56 secured to the part 12 engages a beading 54 formed on the lower end of the part 10. Internal baffles 58 prevent the splashing of oil directly on to the interfitting end edges of the casing. Escape of oil through the shaft openings 20, 22 is largely prevented by U-shaped glands 62 of lead secured in the lower halves of the openings so as to engage the shafts, the inner edges of the glands having notches 63 for the return of oil to the casing, and by leather wipers 64 which bear on the upper parts of the shafts, the wipers being held in clips 66 which slide in vertical guides 68 under the action of springs 70. In the case of the upper shaft openings 22, the glands and wipers are carried by plates 72 secured to the parts 10, 12 by bolts 74 extending through horizontal slots 76 in the plates. An inspection opening in the top of the casing is closed by a cover 78 hinged at its lower end and provided with a catch 82. The downwardlyextending sides of the cover overlap the edges of the opening and fit within a gutter 86 extending around the lower end of the opening. Holes 90 permit return of oil to the casing.
Patent GB-246631-A (GB)
Title: An improvement in washers for house water-taps or taps of any description, the washers of which are usually made of leather
IPC: F16K1/36
Filed: 1924-12-10
Abstract: 246,631. Slack, T. H. Dec. 10, 1924. Materials.-A washer for the. jumper of a domestic or like water tap is formed of two portions, one being of metal, leather, fibre, or other hard or tough material adapted to receive the pressure of the nut securing it to the valve stem, whilst the other is of rubber or rubber composition of a soft or yielding nature, to seat upon the valve seating. Fig. 2 shows a washer with a perforated metal plate 12 embedded in rubber 14. Fig. 6 shows an arrangement comprising a leather disc 20 and a rubber disc 17 having prongs 19 entering apertures in the leather disc, as shown.
Patent GB-959352-A (GB)
Title: Load cells
IPC: G01L1/22
Filed: 1962-08-01
Abstract: 959,352. Electric transducers. BALDWINLIMA-HAMILTON CORPORATION. Aug. 1, 1962 [Aug. 1, 1961], No. 29625/62. Heading G1N. A load cell comprising an annular diaphragm 11 (Fig. 1) carrying resistance strain gauges 12 on its underside, is adapted to be acted on by a force W through a rubber-type pad 7 and a load button 5. In a modification (Fig. 3) the rubber pad 30 is located beneath a cup-shaped diaphragm 26 carrying strain gauges 28, 29 on its upper surface. A number of load cells may be assembled on a common mounting plate for measuring a distributed load. U.S.A. Specifications 2,400, 467 and 2, 868, 570 are referred to.
Patent GB-647070-A (GB)
Title: Improvements in electrical metal polishing and the like devices
IPC: H02K7/08
Filed: 1947-11-06
Abstract: 647,070. Electric motors. SCHMUKLER, A., and SCHMUKLER, B. Nov. 6, 1947, No. 29650. [Class 35] [Also in Group XXIII] The shaft E of an electric motor has two lateral extensions each of which is divided into three parts of different diameters and journalled in two bearings J, K enclosed by a casing D. The latter is provided with a hole P in order that it may be charged with lubricant after assembly on the shaft. The bearings are secured by nuts R, G, and the motor casing is hermetically sealed by covers N, N<SP>1</SP>.
Patent GB-1070711-A (GB)
Title: Viscous torsional vibration damper with centering and sealing means
IPC: F16F15/167
Filed: 1966-01-04
Abstract: 1,070,711. Torsional vibration dampers. WALLACE-MURRAY CORPORATION. Jan. 4, 1966 [Jan. 21, 1965], No. 296/66. Heading F2S. In a viscous torsional vibration damper, comprising a driving member 10 having an inwardly-directed flange 11 for attachment, e.g. to the crank-shaft of an I.C. engine and an outwardly directed flange 13, and a driven inertia member 14 which is formed of two annular sections 16, 16a bolted together at 17 and which is formed with a cavity 18 which freely accommodates the flange 13 and which is filled with hydraulic fluid, a pair of elastic rings 26, 27, under radial and axial compressive stress, are interposed between the driving an driven members 10, 14 to seal the cavity 18, provide centring for the flange 13, and establish the thickness of the fluid film in the cavity. The rings 26, 27, as shown, are confined within annular grooves formed by cut-away portions 16c, 16d of the inertia member 14. The grooves may be of circular, rectangular, or wedge cross-sectional shape..
Patent GB-521148-A (GB)
Title: Improvements in and relating to the manufacture and production of artificial threads, filaments and the like
IPC: D01F4/00
Filed: 1938-10-13
Abstract: 521,148. Artificial silk &c. COURTAULDS, Ltd., and WORMELL, R. L. Oct. 13, 1938, No. 29703. [Class 2 (ii)] Threads which have been formed by extrusion of a solution of casein or like protein substance, e.g. soya bean protein, into a coagulant and have been thereafter treated with a hardening agent are further treated with a salt solution adjusted if necessary as regards its acidity, which brings the pH of the threads to a value at or about the isoelectric point of the protein. The excess moisture is removed from the threads and the latter are then heated in the presence of moisture. The salts used have a buffering action in solution over a pH range in the region of the isoelectric point of the protein, e.g. in the casein about pH 4.6. Sodium phosphate, phthalate, lactate, borate, or acetate, or aluminium acetate or substances forming it, e.g. aluminium sulphate and sodium or calcium acetate maybe used. If acetic acid is liberated in the formation of the solution it may be neutralized with sodium carbonate. The hardening solution may be aluminium sulphate solution or formaldehyde solution. After the hardening treatment the threads may be subjected to the treatment with salt solution with or without intermediate drying. Heating in presence of moisture may be effected in a closed container at a temperature of at least 50‹C. In an example a solution of casein in caustic soda solution is extruded into a salt and acid bath and the fibres are hardened with a solution containing aluminium sulphate, sodium carbonate and acetate, and formaldehyde. The fibres are washed and dried and then immersed in a solution of aluminium acetate made by mixing aluminium sulphate solution with lime and acetic acid, filtering off the calcium sulphate, and adding soda ash to neutralize excess acetic acid. The fibres are removed, whizzed free from excess liquor and heated in a closed vessel. In another example, casein fibres are hardened with aluminium sulphate, stapled, and then treated with a solution of sodium acetate, formaldehyde, and acetic acid. In another example, casein fibres on a conveyer are hardened with a solution of aluminium and sodium sulphates and formaldehyde. The fibres are then stretched in a solution of sodium acetate and acetic acid, wound up on a reel in a bath containing sodium acetate, acetic acid, and formaldehyde. The wound fibres are left in a closed vessel for several hours and then heated. They are then placed in cold water.
Patent GB-460361-A (GB)
Title: Improvements relating to shock absorbers
IPC: B64C25/60
Filed: 1935-04-17
Abstract: 460,361. Shock-absorbers. BARKER, G. G. (Bendix Aviation Corporation) April 17, 1935, No. 29725/36. Divided out of 456,897 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 28, 1935. [Class 108 (iii)] A fluid shock-absorbing strut for aircraft is constructed so as to absorb the energy of the landing shock, excluding that portion absorbed by the tyre of the landing- wheel associated with the strut, at a constant rate during the greater part of its stroke and at a reduced rate during the last part of its stroke in order to decrease the pressure on the tyre and allow the tyre to expand and transfer the energy stored therein to the strut. As shown the shockabsorber comprises telescopic tubular members 10, 11 closed at their opposite ends by plugs 12, 13 adapted for attachment to relatively-movable parts of an aeroplane landing-gear. On compression of the shock-absorber, liquid is forced through an orifice 21 in a piston 20 forming the inner end of the member 10, the flow being regulated by a metering pin 2 3 fixed to the member 11. In order to maintain a constant resistance over the greater portion of the stroke of the piston 20 it is explained in the Specification that the ratio between the velocity of the piston and the area of the orifice available for flow of liquid should be constant. Accordingly, the metering pin 23. is provided with a knob-like upper portion 24 and with portions which decrease to a minimum at part 25 and increase to part 26. A helical spring 18 surrounding the member 10 is adapted to come into action with the portion of the pin below part 26, which allows slight flow of liquid through the orifice, the decrease in hydraulic resistance occurring more rapidly than the increase in the resistance of the spring so that the combined resistance becomes temporarily decreased, thus permitting the tyre to expand before completion of the stroke. An air cushion in the member 10 may supplement the spring 18. In a modification, the part 25 occurs nearer the upper end of the pin.
Patent GB-248834-A (GB)
Title: Manufacture of new lignone derivatives and their application
IPC: C09D11/16
Filed: 1924-12-10
Abstract: 248,834. Cross, C. F., and Engelstad, A. Dec. 10, 1924. Ink.-The viscous condensation products made by treating the lignose sulphonic acids described in Specifications 202,016 and 229,002, with acid condensing agents either alone or together with phenolic compounds such as pyrogallol, gallic acid, tannic acid, or haematein, are employed as the basis for inks. Thus they may be mixed with ferrous sulphate and a soluble colouring matter, or with a soluble colouring matter alone, or with a pigment or colour lake such as lampblack, prussian blue, iron oxide, or yellow ochre. According to examples (1) a concentrated writing-ink is obtained by adding ferrous sulphate and a soluble blue (sulphonated triphenylrosaniline) or blue-black (nigrosine) to one of the condensation products; (2) a stencil or printing ink is obtained by mixing one of the products, after nentralization, with lamp black, prussian blue, and glycerine.
Patent GB-262114-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F39/00
Filed: 1926-11-24
Abstract: 262,114. Siemens -Schuckertwerke Ges. Nov. 27, 1925, [Convention date]. Washing - machines with rotary receptacles. - The receptacle is connected by a universal joint 8 to a driving shafts so that it can be tilted to either of the dotted positions in which it dips into washing and rinsing liquids contained in compartments 11, 12 in the tank 1, or can be rotated horizontally out of contact with the liquids for centrifuging. Changespeed gear may be used. A rotatable cover 13 for one of the compartments is provided.
Patent GB-609735-A (GB)
Title: Device for supplying and emptying a group of two hydraulically compressed clutches
IPC: F16D48/02
Filed: 1945-11-08
Abstract: 609,735. Hydraulic friction clutch control. SOC. DES BREVETS KEGRESSE S.E.K. Nov. 8, 1945, No. 29845. Convention date, June 29. Addition to 609,732. [Class 80 (ii)] In the hydraulic friction clutch control described in the parent Specification, a certain amount of play is provided between the lower faces of the valves 7, 7<1> and the rings 10, 10<1> which act as stops for the springs 9, 91, which allows each valve to uncover its appropriate supply duct 16, 16<1> before compressing the spring 9, 9<1> of the other valve.
Patent GB-1355974-A (GB)
Title: Arrangement and process for synchronising signals
IPC: G03B31/04
Filed: 1971-06-25
Abstract: 1355974 Automatic speed control K VOCKENHUBER and R HAUSER 25 June 1971 [25 June 1970 11 Nov 1970] 29901/71 Heading G3R Synchronism between two strips e.g. film and tape is maintained by control of a motor, driving one of the strips, according to the difference between speed dependent signals from each strip, each signal recurring cyclically and having, in each cycle, a parameter that varies progressively. In an embodiment, the frequency of the signals progressively varies up or down, a comparator e.g. a bridge circuit or differential amplifier differencing the signals if they vary linearly together, or subtracting the signal if they vary in opposite directions. A signal S 1  from a tape speed detector, and a signal S 4  from a disc driven in synchronism with film, are fed into a heterodyne circuit 13, through a frequency converter 15, comparator 16, that includes frequency responsive Schmitt triggers 17a to 17c, and logic 18 to motor control circuit 19, having a transistor 20 to control the speed of camera motor 21. The pre-recorded signals on the camera disc may be detected optically or magnetically and the signals may, alternatively, be sinusoidal.