baber/WOPTO huggingface dataset:
Patent GB-628682-A (GB)
Title: Improvements in or relating to apparatus for grinding materials
IPC: B02C13/13
Filed: 1947-08-13
Abstract: 628,682. Centrifugal separators. JANSSEN, A. S. Aug. 13, 1947, No. 22506. Convention date, April 28, 1944. [Class 23] A separator 7, connected at one end to the outlet of a grinding mill 55 and at the other end to means 15 for producing an air current, has fan blades 12 adjustable for pitch. The separator has an inner chamber 8 connected by apertures having adjustable flaps 9 to an outer chamber. Separated solid material discharged from the inner chamber at 11 may be returned to the mill. The gas exhaust from the inner chamber passes through a duct 14, provided with adjustable apertures 41 for varying the flow through the separator, to a cyclone 44 which may have fan blades. The gas exhaust from the cyclone may be returned to the grinding mill or be fed to a filter 49. The Specification as open to inspection under Sect. 91 describes a construction of pitch changing mechanism. This subjectmatter does not appear in the Specification as accepted.
Patent GB-625043-A (GB)
Title: Improvements in locks
IPC: E05B55/00
Filed: 1946-07-29
Abstract: 625,043. Door latches. FERNANDEZ, F. P. July 29, 1946, No. 22528. [Class 44] In a latch, e.g. for a vehicle door, of the kind having a spring shot sliding bolt operable by one or more push buttons, the bolt is provided with pins or lugs projecting through slots in a housing which guides the bolt and engaged by actuating levers connected to the push buttons. In the form shown, the bolt 3 is operable by inside and outside push buttons 23, 32. The button 23 has a head 25 engaging the cranked end 20 of a pivotally mounted bar 18 which carries curved arms 19 engaging pins 11 projecting from the upper and lower sides of the bolt, so that pressure on the button rotates the lever arms and retracts the bolt. The button 32 actuates the bolt through a similar mechanism. The bolt may be blocked against retraction from the inside by a knob 42 which may be screwed inwards through a hole in the housing to obstruct the rear of the bolt. The latch may be locked from outside by a key-operated lock 45 carrying an eccentric pin normally coinciding with a slot in the bolt but movable, by turning the lock, to engage the rear of the bolt. The door is provided with a spring urged plunger near its hinge to give an initial opening movement. In another form applicable to a refrigerator only an outside push-button is provided.
Patent GB-1178767-A (GB)
Title: Thermo-Plastic Impregnated Fibreglass Insulation
Inventor: MOLLER WERNER
IPC: H01B3/50
Filed: 1967-05-16
Abstract: 1,178,767. Impregnated fibre glass insulation. MASCHINENFABRIK OERLIKON. 16 May, 1967 [27 May, 1966], No. 22551/67. Heading H1A. An electrical insulating material consists of glass fibres bonded with polyphenylene oxide. The glass fibres are impregnated with a solution of polyphenylene oxide in a volatile solvent, e.g. toluene. A conductor may be braided with glass fibres and impregnated by dripping or spraying on a solution of polyphenylene oxide in toluene, which evaporates rapidly at room temperature. Alternatively, a conductor is coated with the impregnating solution, dried, braided with glass fibre and then drawn through toluene vapour. In other examples, impregnated glass fibres are wound on to a conductor which is then drawn through an atmosphere of toluene, or impregnated fibres are woven into a strip which may be used to cement together mica and other glass fibres.
Patent GB-937719-A (GB)
Title: Improvements relating to locomotive fireboxes
Inventor: ALCOCK JOHN FREDERICK
Filed: 1961-06-22
Abstract: 937,719. Locomotive furnaces. HUNSLET (HOLDINGS) Ltd. March 30, 1962 [June 22, 1961], No. 22597/61. Class 51 (1). A locomotive fire-box 10 has at its front end a firebrick baffle 12 which is inclined upwardly and rearwardly and at its rear end below the lower edge of the charging aperture 9 for solid fuel, one or more nozzles 13, which direct steam, under the control of valve 15, beneath said baffle. Subsidiary nozzles 17 are provided to assist turbulence and the primary or subsidiary nozzles may be used to introduce extra combustion air.
Patent GB-948712-A (GB)
Title: Improvements in or relating to transformers and chokes
IPC: H01F27/26
Filed: 1962-06-12
Abstract: 948,712. Transformers and inductors. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 12, 1962 [June 14, 1961], No. 22611/62. Heading H1T. A spring member 7 clamps together two U- shaped core halves 1, 3 of a transformer or choke coil and also clamps the insulating mountg or connecting plate 11 between the core and the base of the spring. The member may have a depression to receive a narrower central part of the insulating plate to prevent displacement. The insulating plate may carry pins 13 which may be used to support the device and make connections to printed circuit board 15.
Patent GB-170936-A (GB)
Title: Improvements in or relating to saw filing machines
IPC: B23D63/10
Filed: 1920-07-29
Abstract: 170,936. Wade, H., (Sherwood, L. S.). July 29, 1920. Saws, sharpening.-The saw is clamped to a plate 32, Fig. 10, which is placed in a frame 25, Fig. 3, secured to a post 23 which can be turned and clamped by a screw 24, so that the saw can be placed at any angle to the file 45. The file is carried by a frame 50, which is reciprocated by pin-and-slot gear and is raised by a cam during the return stroke to lift the file from the saw. The saw and plate are fed forward by pawls 78, 79, Fig. 2, engaging the teeth of the saw. The slide carrying the pawls is reciprocated by an adjustable crank-pin 104 or by equivalent gear.
Patent GB-736855-A (GB)
Title: Improvements in or relating to bending machines
Inventor: SANFORD RICHARD AYSHFORD
IPC: B21D7/14
Filed: 1951-09-28
Abstract: 736,855. Bending. TUNGUM CO., Ltd., [formerly TUNGUM SALES CO., Ltd.]. Sept. 25, 1952 [Sept. 28, 1951], No. 22654/51. Class 83 (4). A machine for bending rods or tubes has means for locating one end of the work both axially and also angularly about its axis. Fig. 1 shows a machine for bending a tube 18 about a former 16 by a bending arm 13, a grooved bar 37 being placed between the roller 38 and the work. The frame of the machine carries a longitudinal bar 14 along which is an adjustable stop arm 19. Mounted in the arm 19 is a forwardly projecting locating boss 29 with a laterally projecting tooth or peg 30 which may be clamped in position by a nut 22 after being adjusted by means of a protractor 23. The end of a tube to be bent is formed with a short slot and engages over the boss 39 with the peg 30 projecting into the slot, the work thus being located both axially and angularly. Lateral adjustment of the locating boss is provided by a slot 19a in the arm 19. In the case of a rod, it is first formed with a socket to engage the boss 29 or, if of non-symmetrical cross-section, the boss may be replaced by a socket to receive the end of the rod. In a modified machine, Fig. 4, a mandrel 39 passes through the boss and into the tube to be bent, the forward end 39a being of a diameter to prevent the tube from kinking. The former has a straight-edged portion 41a and the bending arm is in two parts 43, 44 pivoted at 45. During the bending the toggle action of the bending arm presses a grooved block 48 inwardly to clamp the work against the former, the work consequently being drawn over the mandrel 39 and away from the locating boss 29. Another grooved block 49 may be pressed against the work by a lever 50. Specification 634,745 is referred to.
Patent GB-1172344-A (GB)
Title: Radio Receiver with Automatic Frequency and Output Control
IPC: H02J13/00
Filed: 1968-05-13
Abstract: 1,172,344. Protective systems. S & C ELECTRIC CO. 13 3 May, 1968 [24 Jan., 1968], No. 22677/68. Heading H2K. [Also in Division H3] In a protective arrangement in which a radio transmitter mounted on a power line transmits a carrier frequency modulated by a signal corresponding to a variable, e.g. current in the power line, to a receiver at earth potential as in Specification 1,121,719, the receiver is arranged to accommodate shift in the carrier frequency. The receiver comprises an oscillator (not shown) for generating a local oscillation having a frequency which is maintained substantially constant and beats with the transmitted carrier to produce an intermediate frequency which is applied to a demodulating circuit 30, an automatic frequency alignment circuit 35 being effective to shift the centre frequency of the demodulating circuit in the direction of the centre frequency of the carrier. A direct voltage component corresponding to the differential between the transmitted carrier and the receiver centre frequencies is applied through relay contacts 38d to charge a capacitor 59 which can maintain a signal on field effect transistor 60 for a considerable period. The output from the transistor 60 is applied by a potentiometer 65, which is connected across a Zener diode 61, to a feedback amplifier comprising transistors 67 . . . 69. The resulting direct voltage output is applied through a resistor 70 to a varactor 73 which changes its capacitance to change the centre frequency of the demodulator. A potentiometer 31 and a varactor 74 permit manual frequency alignment. The relay 38 operates its contacts when a circuit 29 determines that the level of the received carrier is adequate. Capacitors 44, 45 may be used to provide a delay in relay operation sufficient to allow the carrier to stabilize before the relay can render the output equipment, e.g. power amplifier 20, effective.
Patent GB-249748-A (GB)
Title: Improvements in folding woven wire mattresses
IPC: A47C17/64
Filed: 1925-09-12
Abstract: 249,748. Boxshall, A. Sept. 12, 1925, No Patent granted (Sealing fee not paid). Mattresses.-The frame is hinged to :fold transversely and the woven wire surface is tensioned by forcing the frame into its position of use and clamping it to the bed frame. To adjust the tension the securing bolts d for the movable bar c are passed through selected ones of a longitudinal series of holes e.
Patent GB-410727-A (GB)
Title: Improvements in electric discharge tube apparatus
IPC: H05B41/232
Filed: 1932-08-15
Abstract: 410,727. Supply systems for vacuum &c. lamps. PISK, A., and METZGER, A., 7, Barnabitengasse, Vienna. Aug. 15, 1932, No. 22815. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 15, 1932]. [Classes 38 (ii) and 38 (iv).] Discharge lamps 5 in parallel are connected with the secondary of a Tesla coil 3, the primary of which is energized from a source of current through an interrupter, for example an induction coil 2. The ratio of the turns of the primary to the secondary of the Tesla coil is 1 : 4, the primary consisting of a single layer of four wires in parallel, and the secondary being wound over it in several layers.
Patent GB-1426113-A (GB)
Title: Di-ortho substituted-phenyl-alkylthioisosemicarbazides and derivatives
IPC: C07C337/08
Filed: 1974-05-22
Abstract: 1426113 Thioisosemicarbazides G D SEARLE & CO 22 May 1974 [23 May 1973] 22819/74 Heading C2C Novel compounds (I) and the pharmaceutically acceptable salts thereof, wherein X 1  is hydrogen, halogen, or a methyl or ethyl radical; X 2  and X 3  are halogen or a methyl or ethyl radical; n is an integer from 1 to 7; and R is H 2  or an alkylidene radical of the formula wherein A 1  and A 2  are alkyl radicals containing from 1 to 7 carbon atoms or phenyl radicals or is a cycloalkylidene radical having from 5 to 12 carbon atoms, are made by reacting the appropriate aralkyl chloride or bromide with thiosemicarbazide and, if desired, reacting the product (I) obtained with A 1 .CO.A 2 .
Patent GB-242743-A (GB)
Title: Improvements in silencers for internal combustion engines
IPC: F01N1/00
Filed: 1924-09-29
Abstract: 242,743. Morgan, I. I., and Holmes, L. Sept. 29, 1924. Exhaust silencers. - A silencer comprises a cylindrical body 1, Fig. 2, attached to the exhaust pipe 4, and containing a hollow inner member 5 made in two parts 7, 8, which are spaced from the body 1 by opposite-handed helical threads 6. The part 7 is provided with a closed conical outer end 9, and with a flange 10 and openings 15 and 14<a> at the inner end. The part 8 is provided with a closed outer end 12 surrounded by a flange perforated at 13. and is formed at the inner end with a flange 11 containing an opening 14 leading to the exterior. The outlet from the body 1 may comprise a nozzle 16a, or may comprise a conical member 18, Fig. 8, opening into an enlarged dome-shaped end 19 with a row of discharge holes 20 The gas from the exhaust pipe 4 passes around the helix 6, enters the member 5 through the holes 15, 14<a>, leaves by the opening 14, and passes in a helical path to the holes 13 and outlet 16a. In a modification, the silencer comprises two parts 22, 23, Fig. 10, adapted to be bolted together and provided with baffle plates 25 arranged on either side of a central expansion chamber 26. The gase.s entering at 30 are caused by the baffles 25 to pass to and from the chamber 26 in a zig-zag path of substantially helical form. A perforated baffle 28 extends across the casing adjacent the outlet.
Patent GB-909429-A (GB)
Title: Filling heads for bottle filling machines
Inventor: CLARKE LESLIE
IPC: B67C3/26
Filed: 1960-06-30
Abstract: 909,429. Bottling. BRATBY & HINCHLIFFE Ltd. June 22, 1961 [June 30, 1960], No. 22892/60. Class 125(2). A counter pressure filling head is characterised by the provision of one or more liquid flow passages 24, Fig. 3, each producing a substantially vertical meniscus 50 which arrests filling. Counter pressurising is achieved through a valve 32 and tubes 30 and 36, liquid filling is achieved by means of apertures 24 and snifting is achieved through the valve 18 and tube 17. The container 21 is filled to the required level by the meniscus preventing flow on equalizing of the liquid head in the reservoir 13 with the pressure head on the other side of the aperture 24. On closing the aperture 24 with the sleeve valve 27, snifting to atmospheric pressure can take place,
Patent GB-839786-A (GB)
Title: Improvements in or relating to magazines for cards
Inventor: HILLEN HUBERT JOHN
IPC: G06K13/14
Filed: 1957-07-19
Abstract: 839,786. Record card magazines. INTERNATIONAL COMPUTERS & TABULATORS Ltd. June 6, 1958 [July 19, 1957], No. 22970/57. Class 117 A magazine 50 for record cards has longer fixed walls 6, 7 and a shorter fixed wall 8, the latter co-operating with movable guide 9 pivoted at 21 to form the fourth side of the magazine, the cards being discharged beneath throat knife 5 by reciprocating picker 4. Movable guide 9 serves to feed a tray of cards to the magazine. The cards are contained in tray 51 which slides down rails 23 until handle 10 of guide 9 (swung back to the left) in passing through recess 25 of the tray, meets tray handle 26. Thereupon the operator grasps both handle 26 and handle 10 and swings both tray 51 and guide 9 about pivot 21 till handle 10 is secured in the vertical position by latch 11. Then tray 51 is withdrawn to the left whilst guide 9 retains the cards in the magazine, and the cycle is then repeated. Element 29 is reciprocated by solenoid operated arm 31 in time with picker 4 to tap the cards into alignment.
Patent GB-1281647-A (GB)
Title: Method for recovering monomers from acrylonitrile copolymerisation processes
IPC: C07C51/00
Filed: 1970-05-12
Abstract: 1281647 Recovering polymerizable monomers from the vapour phase MONSANTO CO 12 May 1970 [13 May 1969] 22983/70 Heading B1L Unreacted monomer present in the gaseous products from the process in which acrylonitrile is copolymerized with the monomer is recovered by absorbing the monomer in liquid acrylonitrile. The vapour stream to be treated is preferably first cooled to 10-15C to condense water vapour and then treated with the absorption liquid in a packed column in countercurrent. Residual monomer is absorbed by countercurrent washing with water, the water thereafter being steam stripped and the monomer returned to the polymerization reactor together with the bottoms from the absorption column. Monomers which may be recovered include acrylic and methacrylic acids, methyl methacrylate, vinyl chloride and bromide, vinylidene chloride, vinyl acetate and styrene.
Patent GB-173803-A (GB)
Title: A new or improved method for the attachment of collars to studs, spindles, shafts or the like and for the purpose of coupling lengths of bars or shafts together
IPC: F16B3/04
Filed: 1920-08-05
Abstract: 173,803. Wilson, G., Gould, D. M., and MacLellan, Ltd., P. &. W. Aug. 5, 1920. Securing collars on shafts. -In means for securing collars rotatably on shafts, spindles, studs, &c., a circular wire A, or a series of short lengths of wire, is inserted into corresponding grooves in the parts B, C .to be connected through a hole in the part B, the wire end being bent over and countersunk, so that the wire can be extracted by pliers, or the whole may be burred over. Two or more separate wires may engage separate grooves, and may, as shown in Fig. 4, be used to connect rods J, J<1> by means of a coupling sleeve L. A hasp T, Fig. 6, for securing goods wagon doors is retained in position by a collar B secured to the stud C by a wire A.
Patent GB-679426-A (GB)
Title: Improvements in or relating to methods of manufacturing optical elements
IPC: B29D11/00
Filed: 1950-09-20
Abstract: 679,426. Optical elements. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 20, 1950 [Sept. 23, 1949], No. 23102/50. Class 97 (i). [Also in Group V] A method of manufacturing optical elements in which a coating of a material which is gelatinizable by reducing the' temperature is cast in a mould on a substratum substantially to prevent lateral contraction of the casting during manufacture, is gelatinized, removed from the mould and dried, the mould being profiled such that the free surface of the coating is aspherical, is characterized in that the cast coating consists of water-insoluble material dissolved in an organic liquid. Suitable materials are celluloseacetate-butyrate or cellulose-acetato-propionate dissolved in a mixture of toluene, xylene and isopropanol. Softening agents such as tricresyl phosphate may be added to change the refractive index of the coating. Fig. 3 shows a mould 3 shaped to produce an aspherical correcting plate for a Schmidt system, ducts 4 and 5 allowing heating or cooling liquid to be supplied and a duct 6 admitting the material 7 as described in Specifications 614,255 and 626,530. The substratum 2 may be of glass or transparent plastic and the final elements may consist of the dried coating and substratum or the coating may be used separately. In a mirror a metallic reflecting layer may be provided between the coating and the substratum.
Patent GB-708809-A (GB)
Title: Improvements in the production of modified polyester resins
IPC: C08F283/01
Filed: 1950-09-21
Abstract: Modified polyester resins are prepared by esterifying polyesters having at least one free hydroxyl group at the end of the polyester chain with an amount of an unsaturated aliphatic dicarboxylic acid sufficient for at least the partial esterification of the hydroxyl group or groups, and reacting with a vinyl compound, e.g. styrene, vinyl chloride, ethers and esters, acrylic esters and acrylonitrile, in an amount not more than is equivalent to the double linkages present.  The polyesters are prepared from a saturated dicarboxylic acid (n-mols) or a functional derivative thereof, e.g. oxalic, malonic, succinic, glutaric, pimelic, adipic, sebacic, phthalic and terephthalic acids, and a saturated dihydric alcohol (at least n-1 mols) such as glycol, propanediol -1, 3, butanediol -1, 3, and -1, 4, di- and triglycols (HOCH2 . CH2 . O . CH2 . CH2OH and <FORM:0708809/IV (a)/1> , and hexanediol -1, 6, by usual methods with or without catalysts and with continuous removal of the water formed. In the second stage, unsaturated dicarboxylic acid, e.g. maleic and fumaric is added and the esterification carried out with the acid of heat or usual catalysts.  The vinyl compounds are added together with polymerisation catalysts, e.g. benzoyl peroxide, or with oxygen of the air.  Resins such as colophony may be added to the ester before the addition of the vinyl compounds.  Examples describe the preparation of phthalic anhydride -diethylene glycol and triethylene glycol esters and a sebacic acid -diethylene glycol ester; their reaction with maleic acid; and their polymerisation with styrene, vinyl acetate, linoleic acid vinyl ester and vinyl octyl ether, under pressure with or without benzoyl peroxide.  In a modification in which the phthalic anhydridediethylene glycol ester is reacted with maleic acid, colophony is added before polymerisation with styrene.
Patent GB-1316674-A (GB)
Title: 1-disubstituted-amino pyrazoles and the production thereof
IPC: C07D231/12
Filed: 1970-05-13
Abstract: 1316674 2-Disubstituted amino-pyrazoles TAKEDA YAKUHIN KOGYO KK 13 May 1970 [13 May 1969 3 April 1970] 23149/70 Heading C2C Novel compounds of formula and salts thereof wherein R<SP>1</SP> and R<SP>2</SP>, which may be the same or different, represent a C 1-5  alkyl radical or R<SP>1</SP> and R<SP>2</SP>, together with the adjacent N-atom, form a heterocyclic ring, R<SP>3</SP> represents hydrogen, a C 1-5  alkyl radical or an N,N-disubstituted aminomethyl radical, and R<SP>4</SP> and R<SP>5</SP>, which may be the same or different, represent hydrogen, an alkyl radical or an aryl or substituted aryl radical are prepared by reacting a compound of formula with a compound of formula R<SP>4</SP>-C#C-R<SP>5</SP>. Pharmaceutical compositions in conventional forms for oral or parenteral administration and having analgesic, antipyretic and mild muscle relaxing activity comprise an above novel compound and a carrier.
Patent GB-461198-A (GB)
Title: Improvements relating to alternating current electrical energy meters
IPC: G01R11/36
Filed: 1935-08-17
Abstract: 461,198. Transformers. CHAMBERLAIN & HOOKHAM, Ltd., and JAMES, S. Aug. 17, 1935, No. 23168. [Class 38 (ii)] [Also in Group XXXVI] A current transformer structurally combined with an electricity meter has a nickel-iron core c, the secondary winding connections d being led through bushes e to the current winding of the meter, and the primary comprising a bar f or one of the supply leads.
Patent GB-473723-A (GB)
Title: Improvements in jar, canister and like container closing, venting, sealing and opening means
IPC: B65D51/16
Filed: 1936-08-24
Abstract: 473,723. Closures for jars. BUKOLT, R. B. Aug. 24,1936, No. 23196. [Class 125 (iii)] A closure for a jar &c. which is adapted to be vacuumized, comprises a resilient cover 5, and an attaching ring 6 which engages the jar. A slug 10 covers the vent-hole 9, and a thermo-plastic material 11 is employed in conjunction therewith. When the jar is exhausted the cover 5 assumes a depressed position and under the influence of heat the thermo-plastic material seals the container: The slug 10 prevents any of the thermoplastic material from entering the jar &c. during the treating process. The vacuum may be released by a pin &c. being forced into the sealing material. Openings 13 giving access to the gasket 7 also facilitate breaking the vacuum.
Patent GB-1253637-A (GB)
Title: Scraping device for emptying coolers
Inventor: MULL ARNOLD
IPC: F27D25/00
Filed: 1970-05-13
Abstract: 1,253,637. Feeding material. METALLGESELLSCHAFT A.G. 13 May, 1970 [24 May, 1969], No. 23247/70. Heading B8S. [Also in Divisions F3-F4] A rotary cooler for bulk material 3 comprises louvre-type walls 2a, 2b for the passage of cooling air from an air duct 4 and a movable annular bottom plate 5 on which the material rests to be discharged by a stationary scraper 8 on to a shoot 9 and conveyer belt 10. The deflecting surface of the scraper 8 is formed by components 12a ... 12d extending at progressively increasing angles to the direction of movement of the material and perpendicularly to the bottom plate 5. The components overlap one another in the direction of flow, and the leading component 12a may comprise thicker material or have higher wear resistance than some of the other components.