baber/WOPTO huggingface dataset:
Patent GB-472050-A (GB)
Title: Improvements in or connected with toy vehicles
IPC: A63G19/00
Filed: 1936-03-13
Abstract: 472,050. Amusement apparatus. RENDLE, C. J. March 13, 1936, No. 7618. [Class 132 (i)] Wheeled toy figures such as described and shown in Specification 410,823 are provided with foot rests permanently, removably, adjustably or hingedly connected to the chassis of the toy or to brackets or supports mounted on the chassis. In the construction shown in Figs. 1 and 3, a bracket is formed of two connected metal strips 1, 2 having a spindle 3 carrying rubber, wood or plastic pedals 4 passing through holes in their upper ends, and having a bayonet slot 1a and a straight or curved slot 2a respectively for engagement with studs 6 on the side bar 5 of the chassis. In a modified construction, Fig. 6, keyhole slots 1a, 2a are provided. The slots 1a, 2a may be replaced by holes and the brackets secured to the chassis by bolts and nuts. The strips 1, 2 may be formed integrally from one piece of metal or could be hingedly connected together on the spindle. In the construction shown in Fig. 7, each foot rest consists of a rod or tube 8 covered with rubber 4 and is provided with a screwed extension 8a passing through one of several holes 9 in the side bar 5 of the chassis and held by a nut or nuts. In modifications, provision is made for varying the vertical location of the pedals or the vertical and horizontal location thereof. In the construction shown in Fig. 14, bars 11 are secured to the side frames 5 of the chassis and are each provided with a hole taking a spindle 3 carrying pedals 4. In the construction shown in Fig. 15, two bars 11 are secured to each side frame 5 of the chassis, the top portions of the bars 11 being bent outwards at right-angles to receive a board or plate 13 acting as a foot rest.
Patent GB-810316-A (GB)
Title: Device for suspending a gauging head in a machine tool
IPC: B24B49/04
Filed: 1956-03-12
Abstract: 810,316. Grinding. JONES & SHIPMAN Ltd., A. A., and HOULDSWORTH, J. March 4,1957 [March 12, 1956], No. 7642/56. Class 60. [Also in Group XIX] A suspension system for the gauging head 1, Figs. 7 and 9, of a gauge for a machine tool comprises two crank arms or equivalent 6, 7 which are pivotally secured to spaced points and pivotable in unison to convey the gauging head from its operative gauging position to an inoperative position clear of the work, or vice versa. The head 1 is mounted by a system of springs 2, Fig. 7, to a platform 3 provided with crank pins 4, 5 rotatable in holes in the ends of the crank arms 6, 7, which may be in the form of discs or segments. The arms are secured to shafts 8, 9 which are disposed within sleeves 10, 11 and rotatable in bearings 12 located in a casing 14. Pinions 15, 16 are rigidly secured to the shafts and co-operate with a rack 17 carried on a cylinder 18 which can be axially moved on a stationary piston 19 and rods 20, 21 by fluid pressure from pipes 22, 23, to move the head to and from its operative gauging position, the arms 6, 7 moving through an arc of 180 degrees; the movement may be controlled manually, or automatically at predetermined intervals. In alternative constructions, the connection between the shafts 8, 9 may be by chain, strap, belt, toothed wheel or eccentric links. As applied to a cylindrical grinding machine, the sleeves 10, 11 are adjustably clamped to a support 32, Fig. 9, upstanding from the tailstock or worktable, so as to be axially movable to position the gauging head relative to the support. The gauging head may comprise a spring-urged plunger and positioning abutments or a system of links contacting the work at spaced points to position the gauge correctly or a size-responsive device operated pneumatically, electrically or mechanically to control the rate of stock removal and to stop the operation when the finished size is reached. A known suspension sysetm for a gauging head 43, Fig. 1, is described in which the head is carried on arms 37, 38 which are pivoted to the wheel-head 36 and a pin 39 on the arm 37 respectively. The gauging head may thus be moved manually from its operative to its inoperative position and a latch applied to retain it in the latter position. Changes of size of the workpiece 42 are communicated by a plunger 40 to an indicator 44 or other pneumatic, electric or mechanical measuring apparatus.
Patent GB-903011-A (GB)
Title: Arrangement for varying the absorption characteristic of an oscillatory circuit
IPC: H04N5/46
Filed: 1960-03-04
Abstract: 903,011. Radio-receiving circuits; multiplex radio signalling. LOEWE OPTA A.G. March 4, 1960 [March 11, 1959], No. 7647/60. Class 40 (5). In a television receiver which can be switched for different systems, in particular for a system employing amplitude modulation for sound and alternatively the intercarrier system using frequency modulation for sound, means are provided to vary the sensitivity of the sound channel when receiving different systems. Tuning head 1 includes a frequency changer which feeds video I.F. amplifier 4 and also a branched sound I.F. amplifier 5 for amplitude modulated sound. When switched for a system employing intercarrier sound, in which the valve 4 also forms a sound channel amplifier, the absorption produced by the A.M. soundchannel tuned circuit 7, 8 is reduced by running the valve 5 into grid current. This is done by switching its grid leak-normally connected to a gain control voltage-to connect to the H.T.+ supply.
Patent GB-600609-A (GB)
Title: Improvements in electrical control apparatus
IPC: G05D3/12
Filed: 1944-04-25
Abstract: 600,609. Selective control systems. YARDENY, M. N. April 25, 1944, No. 7682. [Class 40 (i)] In a push-button tuning or similar control system, the push -buttons have three contact points which are connected together when the button is depressed, one contact in each button being connected to the source of supply, one to the starting relay, Fig. 1 (not shown) or to the motor field 42 and the remaining contact to an individual terminal of a selector switch driven by the tuning motor. When the switch reaches the selected point it completes a circuit for a stopping relay, Fig. 1 (not shown) or for an opposing field winding 41. In the arrangement shown, the contact connected to the source of supply is disconnected before the others to ensure that the release of the button shall not give an impulse to the motor. In a modified system, operation of the stopping relay short-circuits the armature to provide dynamic braking.
Patent GB-777688-A (GB)
Title: Polyhydrophenanthrene compounds and their preparation
IPC: C07D317/72
Filed: 1953-09-17
Abstract: The invention comprises compounds having the formula: <FORM:0777688/IV(b)/1> in which the 7-position is occupied by either a divalent group convertible to a single keto group by acid hydrolysis, e.g. a cyclic ketal, or by a pair of univalent groups together convertible to a single keto group by acid hydrolysis, e.g. a non-cyclic ketal, and compounds having the formula: <FORM:0777688/IV(b)/2> in which the 7-position is occupied by a univalent group which is convertible to keto by hydrolysis, e.g. an enol ether (in both formul  (a) and (b), R1 represents an alkyl group) and the corresponding 7-keto compounds, and their preparation (a) by ozonizing compounds corresponding to formul  (a) and (b) bearing a 2-methallyl substituent and reducing the ozonide so produced with a mild reducing agent, e.g. zinc and acetic acid or hydrogen in the presence of a platinum catalyst; or (b) by reacting with per-iodic acid a compound corresponding to formul  (a) and (b) bearing a 2-b ,g -dihydroxy-isobutyl substituent.  The ozonization may be effected in methanol at about - 80 DEG  C.  The oxidation with per-iodic acid may be effected in ethanol or tetrahydrofuran in the presence of pyridine.  Compounds blocked in 7-position may be converted to 7-keto compounds with acid, e.g. p-toluene sulphonic acid, perchloric acid and hydrochloric acid. Examples disclose the production of several stereoisomers of 1-carbomethoxymethyl - 2 - acetonyl - 4 - keto-2,4b - dimethyl - 7 - ethylenedioxy - 1,2,3,4,4a, 4b,5,6,7,8,10,10a - dodecahydrophenanthrene and of the corresponding 7-keto compound.  Specifications 763,208, 777,686, 777,687 and 777,689 also are referred to.
Patent GB-851787-A (GB)
Title: Improvements in or relating to the production of vulcanizates of elastomeric substances
IPC: C08J3/18
Filed: 1959-03-05
Abstract: In making a vulcanized natural or synthetic rubber having the maximum density possible in accordance with its composition, the elastomer is masticated in the presence of air, but subsequent operations for preparation of the vulcanizate are conducted under vacuum.  An example is concerned with plasticizing a butyl rubber (copolymerized isobutylene and styrene) in air for 1 hour and then incorporating zinc oxide, stearic acid, titanium dioxide, sulphur, benzoyl peroxide, red lead and carbon black under vacuum in 1/2 hour, the mix being, after vulcanization in hot air at atmospheric pressure, of the density-1,41-of the uncompounded rubber.
Patent GB-710027-A (GB)
Title: Clock initiated defroster control for mechanical refrigerators
IPC: F25D21/00
Filed: 1952-03-26
Abstract: 710,027. Thermal switches; time switches. RANCO, Inc. March 26, 1952 [June 14, 1951]. No. 7739/52. Class 38(5) A switch for causing defrosting of a refrigerator at a certain time every day and for stopping the defrosting when the temperature of, e.g., the evaporator, rises to a certain value, comprises an L-shaped lever 25 pivoted at 27 and connected by a tension spring 23 to a toggle member 22 pivoted in an aperture in a blade contact member 20 co-operating with fixed contacts 17, 18. Normally, contact 17 is engaged to complete the refrigerator motor circuit but when lever 25 is moved counter-clockwise, the contact 18 is made to complete the circuit of a heater for the evaporator. Lever 25 is controlled by a cam projection 57 on a disc 56 which is loosely mounted on a spindle 40 driven over a ratchet and pawl 37, 38 by a clock 32. Fast on spindle 40 is a disc 54 having lugs 63, 64 to the' latter of which is hooked a torsion spring 62, the other end of which is hooked round projection 57. Spindle 40 is rotated once in twenty-four hours and disc 56 rotates with the spindle until the projection 57 engages a spring detent 67, further movement of spindle 40 then stressing the spring 62 until the lug 63 pushes projection 57 past the detent, the spring 62 then snapping the projection past the lever 25 which is thus moved to its operated position. The lever 25 and the contacts are restored by a thermal capsule 72 acting through a lever 70 on lever 25 when the evaporator temperature rises to a certain extent. If, at the present time the evaporator temperature is already high enough, rocking of lever 25 by projection 57 is blocked by the lever 70, a spring blade 58 on lever 25 preventing damage to the parts. The temperature is adjusted by altering the tension of a spring 81 acting on lever 70 and the operating time is adjustable by setting the disc 54 relatively to disc 56.
Patent GB-413247-A (GB)
Title: Improvements in and relating to hauling slips
IPC: E02D5/80
Filed: 1934-03-12
Abstract: 413,247. Hauling-slips. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES., Nuremberg, Germany. March 12, 1934, No. 7749. Convention date, March 11, 1933. [Class 68 (ii).] A hauling-slip comprises a suspended cradle consisting of bottom girders e and vertical members f, forming a U- section frame supported by means of rollers g on a railway a on girders c supported by piles d. The track c is inclined, and the members f proportioned so that the plane of the girder frame e is horizontal.
Patent GB-507358-A (GB)
Title: Improvements relating to the securing of sheet metal or other parts to structural members
IPC: F16B19/10
Filed: 1938-03-12
Abstract: 507,358. Riveted &c. joints. ROE & CO., Ltd., A. V., and TAYLOR, R. F. March 12, 1938, No. 7767. [Class 83 (iv)] [Also in Group VII]. A metal sheet b is attached to a member a .by,means of tubular rivets f each of which is expanded by a headed mandrel, e, g so that the metal of the rivet is forced into a screw thread formed in a hole c in the member a.
Patent GB-1097011-A (GB)
Title: Apparatus for controlling tension in endless webs and the like
Inventor: REID ERIC WILLIAM
IPC: D21F1/36
Filed: 1964-02-25
Abstract: 1,097,011. Fluid-pressure servomotor systems. KEELAVITE HYDRAULICS Ltd. May 24, 1965 [Feb. 25, 1964], No. 7882/64. Heading G3P. [Also in Division D2] Apparatus for controlling the tension of an endless web, such as fourdrinier wires used in paper making machines, comprises a tension sensing roller 1 rotatably mounted on an arm 2 pivoted at 3 and a tension adjusting roller 5 actuated by a hydraulic rotor 11A. The motor 11A has a piston 11 dividing the cylinder into two chambers 12, 13 of which the chamber 13 is supplied continuously with a hydraulic pressure from a conduit 15, the pressure being set by a reducing valve 25. The chamber 12, under automatic control, is supplied with hydraulic fluid at a pressure proportional to the web tension under the control of a reducing valve 24. The outlet pressure from the valve 24 is set by a fluid-pressure loading applied to a piston 59 under the control of a reducing valve 4 whose outlet pressure is proportional to the difference between the tension acting through lever 2 on a diaphragm 66 in opposition to a set fluid force acting in chamber 66A and representing the desired tension. The valves 24, 25 are similar to a valve 23 which comprises a main valve member 44 loaded to the open position and closed in response to the opening of a pilot valve 31 responsive to the outlet pressure which is thereby determined by the loading on the valve 31. Valve 23 provides a manual control of the pressure fed to chamber 12 by adjustment of the spring 33. Solenoid valves 20, 17 are arranged in the supply to the chamber 12 such that when both these valves are deenergized, control of the tensioning roller is in response to valve 24, when valve 20 is energized, control is in response to the manual valve 23 and when both valves 20, 17 are energized the chamber 12 is connected to exhaust to allow the adjusting roller 6 to be lifted.
Patent GB-288569-A (GB)
Title: Improvements in the recovery of titanium compounds
IPC: C22B34/12
Filed: 1928-03-15
Abstract: 288,569. Titanium Pigment Co., Inc. (Assignees of Washburn, W. F.). April 12, 1927, [Convention date]. Titanium sulphate and salts thereof in general. -A readily liquid-permeable mass is obtained from titaniferous materials by treatment thereof with an acid such as concentrated sulphuric acid by maintaining the reaction mass in an agitated and preferably also gasified condition to the end of the reaction, for example by mechanical means or by the injection of a gas such as air. With certain ores, when, as described below, the reaction is initiated by adding a small quantity of water to the thickened ore acid mass, the required agitation may be obtained wholly from the evolution of gases and vapours within the reaction mass. When a gas is used, the reaction may be controlled by adjusting its volume, temperature, and period of application. The admixed reacting materials may be preheated to 50-160‹ C. or preferably to 80-120‹ C., as by the injection of steam or hot air until the mass thickens, and the reaction be then initiated by the addition of a small quantity of water. Further additions of water may be made during the reaction, if necessary, to maintain the desired temperature. Alternatively either or both of the reacting materials may be separately preheated; whilst in some cases preheating and initiation of the reaction by addition of water may both be unnecessary. The reaction product may be dissolved, in the reaction vessel in which it was produced, in water, or in dilute acid such as wash liquors or the liquor remaining after hydrolysis of the solution obtained, and the resulting solution be treated, as by immersing therein lead baskets containing iron or zinc, to reduce ferric iron and some tetravalent titanium to obtain a solution suitable for hydrolysis. An example of the treatment of ilmenite with sulphuric acid is given. Specifications 115,020 and 256,734 are referred to.
Patent GB-1129328-A (GB)
Title: Apparatus for regulating the supply of aspirated air to an internal-combustion engine exhaust gas converter
Inventor: HAMBLIN ROBERT JEREMY JOHN
IPC: F01N3/22
Filed: 1966-02-24
Abstract: 1,129,328. Purifying exhaust gases. UNIVERSAL OIL PRODUCTS CO. Feb. 24, 1966, No.8109/66. Heading F1B.  The flow of secondary air through pipe 7 to the throat of a Venturi type aspirator 2 in an exhaust pipe 1 leading to an exhaust gas converter 5 is controlled by a valve 9 which closes as the air flow increases. The converter 5 may be of the catalytic or after-burner type. The valve 9 may be a pivoted flap loaded towards opening by a counterweight 10 or by a spring and with a curved upstream end upon which the air flow acts to move the valve towards closing. The valve is of smaller cross-section than the conduit to prevent complete closure of the conduit when the valve closes. In Fig .6 (not shown) the valve comprises a slidable plug 33 which moves towards a seat 30 with increasing air flow, an opening 35 permitting a restricted air flow when the valve closes.
Patent GB-235668-A (GB)
Title: Method and apparatus for storing vegetable material
IPC: B65D88/74
Filed: 1924-03-31
Abstract: 235,668. Arquint, H. March 31, 1924. Corn-silos; storage bins.-A method of storage of vegetable material consists in first covering the material without compression, enclosing a small quantity of air, and then applying pressure to expel the air and reduce the temperature. The material is placed in a silo 10 having a counterweighted heavy cover 12, the walls and cover being insulated. Heating elements may be mounted in the silo. A thermometer inserted in the material operates an alarm. The counterweight may be heavier than the cover and supported by a cable attached to a winch that can be released when the cover is to be opened. In another arrangement the beam 41, Fig. 3, upon which the pulleys 44 are carried, can be raised by gearing 36, the pressure being thus taken off the upright 52 which is adjustably connected to the support 51 attached to the cover. Passages 18, 20 for the application of air at suitable temperatures may be provided in the walls and interior of the silo. The silo is applicable for the storage of granular materials.
Patent GB-350051-A (GB)
Title: Improvements in burners for pulverised fuel
IPC: F23D1/00
Filed: 1930-03-13
Abstract: 350,051. Pulverulent fuel burners. WADE, H., 111, Hatton Garden, London.- (B³ttner-Werke Akt.-Ges. ; Parkstrasse, Uerdingen-on-Rhine, Germany.) March 13, 1930, No. 8170. [Class 75 (i).] A mixture of coal dust and air, oil or gas is discharged into the burner from an annular chamber 5 through a slot or slots 6 in the form of a transverse curtain which is carried forward by a whirling stream of air or air and gas, introduced behind the curtain through openings 10 in an annular supply pipe 9, ignition being effected by a spray or gas burner 3. The whirling and combustion of the fuel is assisted by additional air entering through tangential slots 12 in the burner lining 1 so as to envelop the burning mixture and, to prevent the flame from spreading, a further air current is discharged either radially inwards or slightly inclined forwardly through a slot 14 between the front of the lining 1 and a front piece 1a. The ignition and combustion of the mixture may be promoted by heating the secondary air to over 500‹ C. and preferably to 700‹ C. The primary mixture of coal dust and air may also be preheated nearly to the ignition temperature.
Patent GB-309702-A (GB)
Title: Improvements in or relating to machines for dyeing, impregnating or like treatment of fabrics
IPC: D06B3/32
Filed: 1928-03-17
Abstract: 309,702. Jackson, L. Mellersh-, (Maschinenfabrik Benninger Akt. - Ges.). March 17, 1928. Winding webs.-In apparatus for dyeing or otherwise treating webs of fabric in which the web can be run in either direction between a pair of winding-drums, a device for stretching the web transversely is mounted in such a manner as to bear continuously on the web at the winding- drum. The fabric 3, Fig. 1, is shown as passing from the drum 1, through a dye vat 4, to the winding-drum 2. A frame 6 mounted on a pivot 8 carries at each end a pair of conical stretching- rollers 11, Figs. 1 and 2, and a smooth guiding- roller 5 and weights 10 mounted in a chamber 9 on the frame 6 automatically turns the frame into such a position that the roller 5 bears continuously upon the web on the winding-drum. To maintain the speed of the web substantially constant, the drums 1 and 2 are driven by a differential gearing. The inner ends of the rollers 11 are connected together by a claw clutch 12 and the rollers 11, 5 are hollow to allow water for cleaning purposes to be passed through them.
Patent GB-1218543-A (GB)
Title: Method of, and machine for, electrodischarge machining
Inventor: MERRIDEW DAVID NELSON
IPC: B23H1/00
Filed: 1967-02-22
Abstract: 1,218,543. Electro-erosion. PRESSED STEEL FISHER Ltd. 15 May, 1968 [22 Feb., 1967], No. 8347/67. Heading B3V. A die-set 20 is positioned for electrodischarge machining by placing the set on a lower platen 12 in a dielectric tank 11, moving the tank under an upper platen 21, raising the tank towards the upper platen, clamping the upper die part to the upper platen, lowering the tank to the correct gap between the die parts and filling the tank with dielectric. The tank is raised by ball-type screw jacks 30 operated from a gear-box 32 through mitre boxes 31. The upper platen is movably mounted on columns 28 and the tank is fixed to the columns at the correct gap by pneumatic ratchet blocks 40 which engage ratchets on the columns. Three hydraulic control cylinders 25 are connected to a master hydraulic cylinder which together move the upper platen to keep the gap constant in dependence of the spark-gap voltage. The die sets are insulated from each other by insulated guide bushes on one part engaged by guide pins on the other. The dielectric is oil which is fed from a storage tank through a flexible pipe (29), Fig. 2 (not shown), and a filter 41 by a pump 42. A sealed access door 101 allows an operator to inspect the die parts after the dielectric has been discharged.
Patent GB-127090-A (GB)
Title: Improvements in Castor Wheels.
IPC: B60B33/04
Filed: 1918-05-21
Abstract: 127,090. Austin Motor Co., and Austin, Sir H. May 21, 1918. Castors.-In a wheel castor of the type which can be reversed without swinging the wheel about the castor axis, the wheel A is pivoted in a fork B which is itself pivoted at a point g, above the wheel axis, to a member D which can turn about the castor axis E. The vibration of the fork is limited by stops d.
Patent GB-1502089-A (GB)
Title: Process for the production of derivatives of alpha-phenyl-propionic acid
IPC: C07C59/84
Filed: 1976-03-03
Abstract: 1502089 Production of derivatives of α-phenylpropionic acid SIGURTA FARMACEUTICI SpA 3 March 1976 [8 July 1975] 08433/76 Heading C2C The invention relates to a method of preparing an α-phenylpropionic acid derivative of formula in which A is a group selected from -COOH, -CN and -COOR 1 , R 1  being an alkyl group having from 1 to 3 carbon atoms, comprising methylating a compound having the Formula II in which Y is -CN or -COOR 1 , R 1  being an alkyl group having from 1 to 3 carbon atoms, with a methylating agent in the presence of a catalyst selected from tetra-alkyl-phosphonium, -arsonium and -ammonium salts, tetraarylphosphonium and -arsonium salts and mixed alkyl-aryl-phosphonium and -arsonium salts, and if desired hydrolysing the product obtained. The following intermediates are prepared in the examples: 3-benzoylphenylacetonitrile by the reaction of 3-bromomethyl-benzophenone with NaCN, α-m-benzoylphenylacetic acid butyl and methyl esters by treating 3-bromomethyl benzophenone with n-butanol and carbon monoxide in the presence of tri-n-butylamine and cis Pd[P(C 6 H 5 ) 3 ] 2 Cl 2 . The butyl ester thus produced is transesterified to produce a methyl ester of the above compound.