baber/WOPTO huggingface dataset:
Patent GB-1007461-A (GB)
Title: Moisture sensing device
IPC: G01N27/04
Filed: 1962-04-05
Abstract: 1,007,461. Sensing icing conditions electrically. GARRETT CORPORATION. April 5, 1962 [April 6,1961], No.13229/62. Heading G1N . Apparatus for determining when the atmospheric humidity is such that icing conditions exist comprises two adjacent electrodes, maintained at a temperature above freezing point, which are short-circuited by condensed water vapour to operate a visual alarm. As shown, a thermistor 5 (Fig. 1), sensitive to ambient temperature, operates through a bridge circuit 10 to energize the measuring apparatus when the temperature falls to freezing point. A moisture-sensitive element comprises electrodes 7P, 7N which are shortcircuited when drops of moisture are formed between them, causing a lamp 20A to light. To prevent icing on the electrodes 7P, 7N they are maintained just above freezing point by a water 8 controlled by a local thermistor 9. The thermistors 5, 9 are located in a substantially cylindrical body 21 (Fig. 2), with the heater 8 and electrodes 7P, 7N wound on the outside. The electrodes may be coated with a salt to increase the conductivity of the moisture droplets. Specifications 1,007,462 and 1,007,463 are referred to.
Patent GB-132404-A (GB)
IPC: A47B9/18
Abstract: 132,404. Packham, R. F., and Short, H. O. Dec. 3, 1918. Tables and desks with mechanically - connected movable parts. - A table top is provided with a pivoted leaf which can be turned over so as to take the place of a rising and falling leaf, a rising and falling platform fitted as a writing, dressing, sewing, or like table being arranged so as to occupy the space left by turning over the pivoted leaf. The rising and falling leaf 5 and platform 6 are guided by pins and slots and are connected by parallel links 20, 12 to slides 19, 11 operated from a slotted link 8 connected to the leaf 4, which is pivoted to the sides of the opening in the table top 1.
Patent GB-1531916-A (GB)
Title: Heat shield for an exhaust member
IPC: F01N13/14
Filed: 1976-04-01
Abstract: 1531916 Heat shields NISSAN MOTOR CO Ltd 1 April 1976 [4 April 1975] 13242/76 Heading ASA An exhaust pipe 12, Fig. 1B, exhaust silencer or catalytic converter for the I.C. engine of a road vehicle has a heat shield 14 spaced from the pipe by spacing elements 20 so as to provide an air insulating layer, and secured to the pipe by clamps 22. The shield has a recess 16 which may be cylindrical (as shown) or may be of rectangular crosssection. The clamps and spacing elements may be located opposite each other (as shown), or they may be positioned alternatively along the exhaust pipe 12, Fig. 3 (not shown). In another embodiment, Fig. 5A, the clamps 36 embrace the exhaust pipe and the shield 30 is spaced from the pipe by sets of embossments 32, 34 beneath the clamps, the set 32 being welded to the pipe. In a third embodiment, Fig. 6B, the shield 40 is secured to the clamp 46 by bolts 52 and by welding at embossments 44.
Patent GB-452973-A (GB)
Title: Improvements in and relating to trailers for motor vehicles
IPC: B62D53/08
Filed: 1936-05-11
Abstract: 452,973. Road-vehicle undercarriages. DOORNE, H. J. VAN, Huize Vita Nuova, Deurne, Holland. May 11, 1936, No. 13249. Addition to 435,243, [Group XXXI]. [Class 108 (ii)] An underframe as described in the parent Specification is modified for application to a trailer and comprises a central longitudinal box-frame member 1 of height greater than its width, an enlarged front structure 2 adapted to be welded to the central beam 1 at the same or other height according to the floor required for the particular loading conditions, a bottom bearing surface 3 on the structure 2 adapted to bear on the bearing surface 4 of the front wheel structure 5, transverse and radial tapering members 12, 14, 15 and a marginal light rail 13. The front wheel structure comprises a frame having struts 6 supporting the bearing surface 4, springs 8 for the wheels and a draw bar 9.
Patent GB-1455663-A (GB)
Title: Process and apparatus for mixing liquid materials showing great differences in viscosity
IPC: B01F23/47
Filed: 1974-03-26
Abstract: 1455663 Mixing liquids BASF AG 26 March 1974 [27 March 1973] 13255/74 Heading B1C In a process for mixing two liquids having a viscosity difference of at least two powers of 10 in terms of poise, a portion of the high viscosity liquid is. mixed with low-viscosity liquid in a dynamic mixer to form a premix having a viscosity less than two powers of 10 bellow that of the higher viscosity liquid, and the premix mixed with the remainder of the high viscosity material in a static mixer. Preferably the mixing of the premix in the dynamic mixer is carried out at a sheer rate of at least 0.1 sec<SP>-1</SP> to form a premix containing not more than 60% by weight of the low viscosity material, and the mixing in the static mixer is carried out at a sheer rate of not more than 10<SP>4</SP> sec<SP>-1</SP>. In an apparatus the high viscosity liquid 1 is branched off through a line 4 and metering pump 5 to a junction 6 where it is joined by low viscosity liquid metered by a pump 8. The premix so formed is mixed in a toothed disc mixer 12 and fed to the main high viscosity stream at 17, the total stream being subdivided into partial streams which are displaced and recombined in a static homogenizer 20. In modifications a second high viscosity material 3 .may be added to the branch line 4 of the first, and a third high viscosity liquid material 14 with or without solids content to the junction 6 or to the premix at 18; further low viscosity material may be added to the main stream of the mixture at 19 or through a line 10 to the static homogenizer 20. The invention may be used for mixing lubricants, expanding agents, stabilizers and plasticizers with molten polymers; examples relate to nylon 6 and the mixing of a paraffin oil with polystyrene.
Patent GB-132844-A (GB)
IPC: B60B9/26
Abstract: 132,844. Raybould, E. Sept. 13, 1918. Spring wheels with sectional outer guided members.-In a wheel the periphery of which is composed of articulating felloe elements 5, 14, coiled springs 10 on the spokes 4 urge the blocks 5 outwards between disks 6, by which their movement is confined bv bolts 8 and perforations 19. The sections 14 articulate with the sections 5 at 13 and may be channelled to receive a tyre.
Patent GB-1171054-A (GB)
Title: Abrading Machine.
IPC: B24B21/10
Filed: 1968-03-19
Abstract: 1,171,054. Grinding. P. ERNST, [trading as PAUL ERNST MASCHINENFABRIK]. 19 March, 1968 [22 March, 1967], No. 13284/68. Heading B3D. Apparatus for abrading the surface of a workpiece comprises a conveyer 27 for moving the workpiece beneath an endless band 21 of abrasive material movable in a direction transverse to that of the conveyer, pressure means for pressing the endless band against the workpiece, and a carrier frame 1 for the pressure means extending in the direction of movement of the conveyer and having a width exceeding the width of the endless band. The conveyer is driven in the direction of the arrow 6 and the conveyer band and the workpiece are supported at the abrading station by rolls 24, 25. The abrasive band 21 is supported on pulleys 28 and a guide roller 29 and is backed by a steel pressure band 20, a felt cloth being interleaved between the abrasive band and pressure band. The carrier frame 1 carries a pair of pivots 3, 3<SP>1</SP> on each of which are pivoted a plurality of members 2, 2<SP>1</SP>. Each member has arms 4, 4<SP>1</SP>, 5, 5<SP>1</SP>, 8, 8<SP>1</SP>, the arms 4, 4<SP>1</SP> of corresponding pairs of the members being interconnected by rods 10, the arms 5, 5<SP>1</SP> being interconnected by frames 12, and the arms 8, 8<SP>1</SP> supporting rollers 9, 9<SP>1</SP>. Rods 15, 151 extend downwardly through slots in the frames 12 and at their lower ends are joined by bridges 17 and carry pressure rollers 16, 16<SP>1</SP>. An elastic element 18 presses the rollers against the abrasive band, the element acting on bridging members 17 interconnecting the pairs of rods 15, 15<SP>1</SP>. Stops limit the downward movement of the rollers 16, 16<SP>1</SP> and a spring 13 urges the rollers 9, 9<SP>1</SP> into a lower position determined by a stop 14. In operation, when a workpiece 7 approaches the abrading station, a roller 22 raises the workpiece into engagement with the abrasive band and the sensing rollers 91 which, through the linkage system also raises rollers 9, and lowers the frames 12 so that the pressure element 18 urges the associated pressure rollers 16 against the abrasive band. When the end of the workpiece reaches the edge of the band, roller 22 is lowered to prevent overabrading of the edge of the workpiece. Abrading is only effected by the part of the belt urged downwardly by the rollers 16, 16<SP>1</SP> actuated by the rollers 9, 9<SP>1</SP> engaging the workpiece so that the longitudinal edges of the workpiece are not rounded.
Patent GB-133153-A (GB)
IPC: H01H23/02
Abstract: 133,153. Tucker, J. B., and Crabtree, J. A. Oct. 3, 1918. Switches; switchboards.-The contact-arm b of a switch carries a U-shaped insulated contact k and is pivoted at a so that the contact can be made to bridge two spring-plate contacts d., c, the contact parts of which are tangential to the arc of movement of the contact-arm; one of the spring-plate contacts d is of bowed form and is secured to a bus-bar c on the switch base, and the other e is substantially straight and is anchored to an insulating-bar f by a terminal. A number of switches, as described, are mounted together to constitute a switchboard, and one of the switches of the series is modified to enable it to serve as a two-way switch. In this switch, the contact member engages one or other of the spring-plate contacts only when it is in one of its extreme positions, while it engages continuously with a third spring-plate contact carried by a subsidiary bus-bar. Indentations may be formed in the spring-plate contacts to co-operate with the contact member and maintain it in the position to which it has been moved.
Patent GB-133186-A (GB)
IPC: D04G3/00
Abstract: 133,186. Felton, W. Oct. 17, 1918. Tufting-machines.-Relates to a machine for inserting strips of cloth into a canvas background. The portion of the cloth being tufted is bent over the usual toothed edge of a vertical plate. The needle-bar reciprocates upon a carriage i which is moved one step sideways after each insertion by means of a reciprocating rack r and a stationary rack q and pawls o, p. The needle-bar is reciprocated by means of a rod 10 which is engaged at each end by needle bar driving-gear. The pincer 19, Fig. 5, of the needle f is operated by means of a lever 23 having a bowl 24 which at the ends of the needle stroke rides down and beyond spring- pressed pawls 28, 29. The pawls subsequently yield to permit the bowl to pass above them. A pivoted and. toothed plate is provided which rests upon the last-inserted row of strips and holds them out of the needle path. When the needle bar carriage reaches the end of its stroke, the pawls o, p are lifted by a plate 3 and are held raised by a spring latch 7. The carriage is then drawn by a weight to the other end of its guideway where a projection raises the latch 7, and the parts fall into engagement with the racks again. Starting and stopping gear.-The machine is driven through a single toothed dog clutch, one member of which has a cam surface which engages with a stop lever, when the latter is in its raised position, and thereby is moved laterally and the clutch is disconnected. Normally, the stop lever is held depressed against a spring by a latch. When the netdle bar carriage reaches the end of its stroke, the latch is moved and the stoplever is released. The latch can also be removed by the operation of a knee-lever.
Patent GB-238965-A (GB)
Title: Improvements in or relating to leading-in means for wireless telegraphy and telephony
IPC: H01P5/00
Filed: 1924-05-30
Abstract: 238,965. Fairlie, J. E. May 30, 1924. Grounding aerials.-The leading-in device comprise an insulating support having a pair of terminals at its outer end connected respectively to a pair of terminals at its inner end, and a switch arranged to bridge the outer pair is controlled from the inner end. The insulating rod 1, passing through a window frame &c. 2, is provided with screw terminals 3, 4 at its inner end connected by metallic rods 5, 6 to contact blocks 7, 8 near the outer end. A third contact block 10 at the outer end is connected by a screw terminal to the aerial, and the block 8 connected to earth by a similar terminal. The outer end of the insulating rod 1 is hollow to receive a sliding switch block 15, which is so shaped that in one position it bridges the blocks 7, 10 so as to connect the aerial to the receiving set, and in the other position bridges the blocks 10, 8, thus earthing the aerial directly. The block 15 is moved by a rod 16 connecting it to a handle 17 at the inner end. Spring contact elments 18, 19 may be arranged in recesses in the block 15. The outer end of the insulating rod 1 is enclosed in a sleeve 11 and closed by a cap 14.
Patent GB-143259-A (GB)
Title: Fastening device for spiral wristlets
IPC: A44C5/14
Filed: 1920-05-14
Abstract: 143,259. Kammerer, F. Jan. 21, 1919, [Convention date]. Hooks, spring.- Expansible spiral wire bracelets are provided at the ends with pivoted hooks to engage the loops on a wrist watch, each hook being connected to the ends of the bracelet by two plates. One of these plates a carries the pivoted hook c and the other plate b has spring parts to keep the hook closed.
Patent GB-640570-A (GB)
Title: Improvements in or relating to a process for preparing benzodioxane and benzothioxane compounds
IPC: C07D319/08
Filed: 1947-05-20
Abstract: Benzodioxane and benzothioxane derivatives of the formula <FORM:0640570/IV (b)/1> where X is hydrogen, chlorine, methyl, nitro or methoxy, Y is hydrogen or methyl or X and Y together form a benzo group, Z is oxygen or sulphur and R is hydrogen, methyl, vinyl, propenyl, styryl, phenyl, chlorophenyl, dichlorophenyl, nitrophenyl, methylene-dioxyphenyl or furyl, are obtained by heating a compound of the formula <FORM:0640570/IV (b)/2> where M is hydrogen or a salt-forming metal, with an acetate <FORM:0640570/IV (b)/3> where A is chlorine or acetoxy, in the presence of an acid.  The reactants are refluxed together at normal or super-atmospheric pressure.  In an example, salicylic acid is heated with benzal diacetate and sulphuric acid to give 2-phenyl-4-keto - 1 : 3 - benzodioxane.  Other suitable acetates are ethylidene diacetate, 2-chloro-, 2 : 6-dichloro- and 3-nitro-benzal diacetates, piperonal diacetate, furfural diacetate, cinnamal diacetate, crotonal diacetate and allylidene diacetate. Other specified acids are o-cresotinic acid and thiosalicylic acid. The process of Specification 638,556 is disclaimed.  A sample has been furnished under Sect. 2 (5) of 2 - phenyl - 4 - keto - 1 : 3 - benzothioxane, prepared from thiosalicylic acid, benzal diacetate and sulphuric acid.  The Specification as open to inspection under Sect. 91 contains an example in which sodium salicylate is heated with chloroethyl acetate and potassium iodide in a solvent to give a -acetoxyethyl salicylate.  This is separated, purified by fractional distillation under reduced pressure, and heated with sulphuric acid to yield 2 - methyl - 4 - keto - 1 : 3 - benzodioxane.  It is stated that other salicylates may be used instead of the sodium salt, and that the acetoxy ester need not be separated from the reaction mixture but merely heated with the addition of acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-528806-A (GB)
Title: Improvements in and relating to thermionic valve circuits such as multivibrators and the like
IPC: H03K3/08
Filed: 1939-05-05
Abstract: 528,806. Valve generating circuits. CALVERT, R. May 5, 1939, No. 13518. [Class 40 (v)] A multi-vibrator or like circuit comprises two resistance-capacity coupled valves V1, V2, Fig. 2, having a common resistance Rc traversed by the space current of both valves and common to the control grid-cathode circuits of both valves. Fig. 3 shows a similar circuit used as a frequency divider, resistance 11 corresponding to resistance Rc in Fig. 2. The controlling signals are applied from circuit 13 to the grid of valve V1. The anode-cathode impedance of valve V1 is reduced by a negative feed back circuit 18, 16 between the anode and grid of that valve. A variable resistance 10 permits adjustment of the duration or width of the generated pulses, the frequency of which is adjusted by resistance 27. The controlling or locking signals applied to circuit 13 may be automatically varied in amplitude in accordance with fluctuations in the supply voltage by deriving such signals from a valve fed from the same source, and operating on the anode current limitation. A plurality of multivibrator circuits may be connected in cascade without the interposition of a separator stage, the second valve of each multivibrator operating with anode current limitation. The controlling pulses should be peaked pulses such as are obtained by applying square pulses to a condenser and resistance in series. The natural frequency of oscillation of the multivibratior is preferably below the frequency of the controlling impulses and is pulled up in frequency thereby.
Patent GB-281598-A (GB)
Title: A process for the preparation of a scale removing and preventing substance for use in steam boilers
IPC: C02F5/10
Filed: 1927-05-20
Abstract: 281,598. Soc. Anon. Subox. Dec. 4, 1926, [Convention date]. Incrustation, preventing and removing.-Incrustation in steam boilers is prevented and removed by the addition of resin in the hydrated state, with or without additions such as gum, tannin, or dextrin. Resin in the hydrated state is obtained by treating a resin, e.g., colophony, with an alkaline substance, and then with an acid substance substantially in the cold, in sufficient amount to precipitate all the resin. The resin may previously be purified, oxidized, or polymerized. The hydrated resin product is in the form of a paste containing 80 per cent of water. Reference has been directed by the Comptroller to Specifications 27890/12, 17988/01, [both in Class 91, Oils &c.], and 281,361.
Patent GB-1267413-A (GB)
Title: A method of making image-bearing electrophotographic elements
Inventor: REES WILLIAM WENDELL
IPC: G03G8/00
Filed: 1969-03-17
Abstract: 1,267,413. Electrophotographic element. EASTMAN KODAK CO. 17 March, 1969 [18 March 1968], No. 13885/69. Heading HlK. [Also in Divisions G2-G3] Photoconductive elements for electrophotographic image production (see Divisions G2-G3) comprise a photoconductive triarylamine containing a carboxy or carboxylic anhydride, and optionally a sensitizer. In the examples, elements comprise a polyethylene terephthalate support containing (a) copoly(m-bromobenzoate/vinylacetate) or copoly(terephthalic acid/ 2,2 - bis - [4 - (# -hydroxyethoxy)phenyl propane/ethylene glycol as binder, (b) 2,4 - bis - (4 - ethoxyphenyl) - 6 - (4 - amyloxystyryl)pyrylium BF 4  or 6-Cl-1<SP>1</SP>-CH 3 -1,2<SP>1</SP>,3-triphenylimidazo - [4,5 - b]  -  quinoxaline - 31- indolocarbocyanine as optional sensitizer, and (c) p - diphenylaminocinnamic acid, 4 - carboxytriphenylamine, diphenylanthranilic acid, 4<SP>1</SP>- vinyl - 4 - diphenylamino - cinnamic acid, p - diphenylamino - α - cyano - cinnamic acid, or p - diphenylaminocinnamic acid as photoconductor.
Patent GB-241248-A (GB)
Title: Improvements in or relating to processes and apparatus for the elimination of hydrogen sulphide from fuel gases such as coal gas, water gas, and the like, and from air
IPC: C10K1/12
Filed: 1924-06-10
Abstract: 241,248. Rushen, P. C., (Koppers Co.). June 10, 1924. Sulphur. - In a process for the removal of hydrogen sulphide and other impurities from gases as described in Specification 240,891 in which the impurities are transferred from a gas to a stream of air which is then washed with a liquid containing iron oxide whereby the impurities are removed from the air, a liquid containing a freshly precipitated iron compound is used for washing the air. Freshly precipitated ferrous or ferric hydroxide carbonate or basic carbonate or sulphide may be used preferably in an alkaline solution of sodium carbonate. Coal gas is purified from hydrogen sulphide and other impurities by washing with a solution of sodium carbonate in a scrubber 1, the gas entering and leaving the scrubber by pipes 2, 4. The washing solution is delivered from a pipe 3 and the foul solution is subjected to a current of air in an actifier 7 whereby it is regenerated and flows to a sump 9 to be recirculated by a pump 10. A single tower apparatus as described in Specification 190,117, [Class 55 (ii), Gas manufacture &c.], may be employed. The air charged with hydrogen sulphide is washed in a tower or in a stack 26 with the liquid containing the freshly precipitated iron compound and escapes, purified, while the foul washing liquid flows into a sump 19 and is completely regenerated by air jets 20 which agitate the liquid and cause the sulphur to rise to the surface from which it is skimmed and dried in a centrifuge 28. Specifications 169,996, 170,572, [both in Class 55 (ii), Gas manufacture &c.], and 241,452 also are referred to.
Patent GB-832888-A (GB)
Title: Improvements in television camera apparatus
IPC: H01J29/02
Filed: 1958-05-02
Abstract: 832,888. Television. GENERAL ELECTRIC CO. May 2, 1958 [May 3, 1957], No. 14055/58. Class 40 (3). [Also in Group XL (c)] In order to prevent undesired retention of the image on the target 18 of an image-type camera tube, a defect which occurs in ageing tubes due to a decrease of electron mobility in the glass forming the target, the image is subjected to a periodical movement over the target by currents applied to auxiliary deflecting coils 22 associated with the image section 11, whilst the raster scanned over the target by the electron gun 20 is subjected to a corresponding movement by adding components of the auxiliary deflecting currents to the horizontal and vertical scanning waves applied to the main scanning coils 21. The auxiliary deflecting coils comprise horizontal and vertical coils aligned with the main scanning coils, and suitable deflecting currents 90 degrees out of phase with each other are produced by circular potentiometers 23, 24 having their contacts rotated by a motor 31. Resistors 26 and 29 are included in series with the coils 22 to permit components of the currents to be added in the circuits of the corresponding main deflecting coils 21. Capacitors 27 and 30 prevent the main scanning waves from influencing the auxiliary deflection. A suitable frequency for the auxiliary deflecting current is said to be 5 to 15 cycles per minute. The amplitude may be such as to produce a displacement corresponding to 10% of the image width. Fig. 3 (not shown), illustrates an alternative arrangement for generating the auxiliary deflecting currents comprising a resolver having a rotor energized with the mains supply and quadrature stator coils. These coils provide outputs bearing 90 degree phase-displaced modulations at the frequency of rotor rotation which are extracted by rectification to furnish the auxiliary deflection currents.
Patent GB-199908-A (GB)
Title: Improvements in valves for hydraulic presses
IPC: B30B15/16
Filed: 1922-05-18
Abstract: 199,908. Dineen, H. A. J. May 18, 1922. Piston and tubular valves for controlling the supply and exhaust to and from hydraulic presses, in which high and low pressure water is used. A tubular member closed at both ends by removable plugs is provided with three series of perforations 4, 5, 6 adapted to co-operate with perforated rings 13, 14, 15, 16 packed with cup leathers and in communication with the high and low pressure inlets 12, 8a, the exhaust 9 and a port 11 leading to the press. When in the exhaust position water can escape by perforations 4, 5 and port 9<a> and also by perforations 5, 6 and port 9<b>. A passage 10 is provided to discharge any leakage past the cup leathers. The valve is actuated by a hand lever working over a notched quadrant.