baber/WOPTO huggingface dataset:
Patent GB-942112-A (GB)
Title: Indicating or measuring devices utilizing radiant energy
IPC: G01B11/04
Filed: 1962-05-28
Abstract: 942,112. Photo-electric measurement of length or width. BARNES ENGINEERING CO. May 28, 1962 [July 20, 1961], No. 20491/62. Headings G1A and G1U. The invention relates to a device for measuring the width of material such as hot steel rod or extruded glass tubing having radiation characteristics different from its background and therefore presenting two lines of radiation discontinuity, and comprises at least one radiation detector and means for scanning across the material to be measured whereby a detector output is produced in the form of repetitive pulses, a source of D. C.,a resistive load across the said source, switching means for alternately switching positive and negative points of the D. C. source to a part of the device having a predetermined reference potential, means for connecting the detector output to actuate the switching means, integrating means and means for connecting the integrating means to a point on the said resistive load. In an embodiment scanning means (not shown) of the kind described in Specification 922, 035 is used with a radiation detector 18 to measure the width of a moving steel bar to produce, as described in the aforementioned Specification a series of square pulses at the output of the detector, the duty cycle of the pulses being proportional to the width of the bar. As shown in Fig. 2 the output pulses from the detector are fed to a high speed switching circuit formed by two complementary transistors 7 and 8 which connects one pole of a battery 2 to earth at the beginning of a pulse, and the other pole to earth at the end of a pulse. An output potentiometer 3 has its slider connected through an integrator formed by a resistance 4 and a capacitor 5 to a meter 6. In operation the circuit is initially calibrated by adjustment of the potentiometer 3 so that the D. C. voltage across the capacitor 5 is zero for a bar of predetermined width. Any variation from this width produces a D. C. voltage across the capacitor 5, the polarity indicating whether it is wider or narrower than the predetermined width, the magnitude and polarity of the D. C. voltage being shown by the meter 6. The output from the capacitor may be used as an error signed for a conventional servo-mechanism for controlling the width of the bar. In another embodiment (Fig. 1 not shown) the transistors 7 and 8 are replaced by a high speed mechanical relay, and in a further embodiment (Fig. 3 not shown) the switching is carried out by a double triode. The device normally uses the infra red radiation from the hot material but cold material may be measured using a source of visible light or ultra violet radiation placed behind the material so that the material cuts off part of the radiation beam reaching the detector.
Patent GB-941579-A (GB)
Title: Improvements in or relating to baking ovens
IPC: A21B3/07
Filed: 1960-06-10
Abstract: 941,579. Bakers' ovens. F. PROHASKA. June 10, 1960 [June 12, 1959; Dec. 30, 1959], No. 205557/60. Heading A2A. In a multiple deck bakers' oven of the batch type, charging and discharging is facilitated by providing in front of the oven a framework carriage 4 carrying trays 15-19 movable laterally at the level of the appropriate door 3 to receive a drawplate or the like. The dimensions of the trays 5-19 are substantially equal to the length d and width w of the oven chambers. The framework 4 may be fixed or may be suspended from above and the drawplate may form the bottom of the oven chamber. In a modification, Fig. 4 (not shown), the framework is fixed and the trays have single front legs on rollers. Another modification, Figs. 5-7 (not shown), has the trays supported on guide rails running across the oven and on front legs with rollers, the trays comprising metal strips arranged crosswise. A further modification, Figs. 8-9 (not shown), has the longitudinal members of the framework telescopically extendible to provide supports for the trays. In a final modification, Fig. 10 (not shown), the trays are slidable between upper and lower guides.
Patent GB-1024002-A (GB)
Title: Tensioning mechanism for a chain or belt drive
Inventor: WHITMAN WILLIAM JOHN
IPC: F16H7/08
Filed: 1963-05-23
Abstract: 1,024,002. Belt and chain tensioning devices. FORD MOTOR CO. Ltd. April 15, 1964 [May 23, 1963], No. 20557/63. Heading F2Q. In a tensioning device for a chain 53 or belt, a hard rubber pad 9 is mounted on an arm portion 11 of a casting 7 which is pivoted about a fulcrum shaft 27 and spring-pressed into engagement with the chain 53, backward rocking of the arm 11 being prevented by a roller 5 which is free to move downwardly under gravity in a tapered gap formed between a surface 17 on the back of the casting 7 and a surface 22 formed on a fixed member 3. The roller 5 is located laterally by flanges 15 formed on the casting 7. A torsion spring provides the spring bias.
Patent GB-892092-A (GB)
Title: New dioxazine dyestuffs and process for their manufacture
IPC: C09B19/02
Filed: 1960-06-10
Abstract: Polyamides, polyurethanes, aminoplasts, phenoplasts, polyethylene, polystyrene, polyvinyl chloride and silicone solutions or products are coloured with a pigment of the formula <FORM:0892092/IV (a)/1> where each A is a substituted or unsubstituted aromatic residue and X is an acylamino or acyloxy group of an aliphatic or cycloaliphatic monocarboxylic acid, which pigment is free from acid groups imparting solubility in water.  The pigment may be used for the spin dyeing of viscose or of cellulose ethers or esters.ALSO:The invention comprises dyestuffs which are free from acid groups imparting solubility in water and have the formula <FORM:0892092/IV (c)/1> n which each A is a substituted or unsubstituted aromatic residue and X is an acylamino or acyloxy group of an aliphatic or cycloaliphatic monocarboxylic acid.  The dyestuffs are made by treating a quinone free from acid groups imparting solubility in water having the formula <FORM:0892092/IV (c)/2> where X is as above and R represents different or identical aromatic residues each of which has an alkoxy group in ortho-position to the -NH- group, with a non-sulphonating condensing agent at a raised temperature.  Condensing agents specified are sulphuric acid, Friedel-Crafts catalysts such as aluminium chloride or iron chloride, and aromatic acid chlorides such as benzoyl or naphthoyl chlorides, benzene sulphochloride and benzene trichloride.  The dyestuffs are red to blue pigment dyestuffs.  The quinones of the formula (2) above are made by condensing one mol of a benzoquinone of the formula <FORM:0892092/IV (c)/3> with two mols of an o-alkoxy-aromatic amine.
Patent GB-574434-A (GB)
Title: Improvements in electric circuit breakers
IPC: H01H71/16
Filed: 1943-12-09
Abstract: 574,434. Electromagnetic switches. STILWELL, W. E. Dec. 9, 1943, No. 20592. Convention date, Dec. 5, 1942. [Class 38 (v)] An electromagnetic switch has main contacts 110, 111, 112 and sparking contacts 115, 116, 117, is operated on and off by respective energization of coils 106, 107 and is moved " off " automatically on overload by a bimetal strip 118 which is heated by the contact 110 and moves to engage a contact 121 and so close the circuit to the coil 107. The armature 108 and its spindle are controlled by a dead centre spring 114 the bimetal strip 118 is of the snap kind. In the form shown, the movable sparking contact consists of a disc 117 which bends engaging the contacts 115, 116 and so leaves them after the separation of the main contacts &c. In modifications the movable sparking contact is carried by a lever connected to the armature with lost motion and controlled it may be, by a second dead centre spring. The bimetal strip may also be without snap-action and may co-operate with another strip responsive to ambient temperature. Specification 570,293 is referred to.
Patent GB-710123-A (GB)
Title: Improvements in and relating to means for securing a permanent magnet to a support
Inventor: MASON THOMAS CECIL
IPC: H01F7/02
Filed: 1951-08-31
Abstract: 710,123. Permanent magnets. ENGLISH ELECTRIC CO., Ltd. Aug. 29, 1952 [Aug. 31, 1951], No. 20611/51. Class 35 A cylindrical or other magnet 1 is secured to a support 2 by providing a recess 3 in the latter, inserting the magnet in the recess and filling the space between the magnet and recess edges with deformable material, e.g. aluminium or copper, and finally deforming this material to grip the recess sides and the magnet. Either the magnet or the recess edges or both may be dovetailed.
Patent GB-944931-A (GB)
Title: Improvements in or relating to breathing apparatus
Inventor: FITT PETER WILLIAM
IPC: A62B7/14
Filed: 1960-06-11
Abstract: 944,931. Respiratory apparatus. NORMALAIR Ltd. May 31, 1961 [June 11, 1960], No. 20622/60. Heading AST. A demand regulator has a servo valve controlling a demand valve and supplying gas to the nozzle of a mixing injector. The pressure of the gas supplied to the servo valve is lower than that of the gas supplied to the demand valve. Oxygen from a main supply source enters the body of the demand regulator through a pipe 39 and flows through a pressure regulator 66 which passes it, at reduced pressure, to the servo valve 67. This is under control of the servo diaphragm 73 which, through duct 83, is drawn inwards when the user inhales, through duct 21. The resultant rise in pressure in chamber 68 deflects diaphragm 69 to cause it to open the main valve 61 and pass oxygen through duct 64 to the inhalation tube. Both this duct and duct 70, leading from the chamber 68, exert an extractor effect to entrain ambient air from the cabin through inlet 118, which is normally open, owing to energization of a coil 113 closing a valve 111 and allowing pressure through duct 104 to extend bellows 115 and open valve 117. However, at higher altitudes, an aneroid 120 expands and closes port 121 so that only pure oxygen is supplied to the user. At higher altitudes also, expansion of an aneroid 110 opens a second, bleed valve 109 which exhausts pressure from chamber 103 and allows aneroid 100 to expand and withdraw plunger 101 from a lever 97. This permits a spring 95 to bear upon the diaphragm 73 and cause an additional positive pressure in the mask to prevent ambient air leaking into it. At altitudes over 40,000 feet a further aneroid 92 expands to tend to close a vent duct 91, but there is then a gradual build-up of pressure in chamber 90, owing to gas passing through a metered orifice 93, and this is balanced against the expansion of the aneroid to maintain a steady high pressure of oxygen supplied to the user. A differential diaphragm 85, connected to opposite sides of the main diaphragm 69 actuates a micro-switch 88 to give a signal when the apparatus is functioning correctly. The equipment is intended to be mounted on an ejection seat together with a reserve gas supply and a reserve demand regulator which may be brought into service by a conveniently placed control. The main gas supply and non-essential electrical equipment are automatically disconnected when ejection occurs and remain in the aircraft. Specification 785,371 is referred to.
Patent GB-247475-A (GB)
Title: Fuel pump for internal combustion engines having jets with closed nozzle
IPC: F02M63/00
Filed: 1925-08-18
Abstract: 247,475. Lang, F. Aug. 18, 1925. Regulating delivery by by-passes or return circuits; drip, preventing.-In a fuel pump for internal combustion engines having a jet with a closed nozzle, the pump piston opens, at the end of its delivery stroke, communication between the delivery side of the delivery valve and the suction valve. At the end of the delivery stroke, the plunger i of the pump contacts with a plug k of and lifts a valve whereby liquid in the nozzle supply pipe h<1> above the delivery valve h is drawn back past the adjustable valve n into the auction pipe g<1> beneath the suction valve g. Leakage past the washer d of the injection nozzle c is led back to the suction through a pipe m. In a modification, the piston is extended and has a reduced portion which effects the by-passing operation. The plunger stem is screwed into the tappet which rests against the operating cam, and the stem has a gear wheel whereby adjustment of the mean position is effected and consequently adjustment or cutting out of the by-pass operation is effected.
Patent GB-518264-A (GB)
Title: Temperature compensated pressure responsive indicating instruments and devices
IPC: G01L7/00
Filed: 1938-07-12
Abstract: 518,264. Altimeters &c. BENDIX AVIATION CORPORATION. July 12, 1938, No. 20669. Convention date, July 14, 1937. [Class 106 (ii)] A pressure responsive device for pressure indicating instruments c o m - prises flexible means 22 movable in ressponse to pressure variations, and temperature compensating means comprising a temperature responsive element (e.g., a bi-metal disc 43) producing a stress in the flexible means 22 varying with the changes of temperature, the element 43 being mounted on the flexible means in direct contact with spaced points 48 thereof so as to bridge a portion of the flexible means.
Patent GB-712805-A (GB)
Title: Parking meter
IPC: G07F17/24
Filed: 1952-08-18
Abstract: 712,805. Coin freed parking meters. MENHALL, J. W. Aug. 18, 1952, No. '20690/52. Classes 27 and 139 Parking meter. A timing and signalling unit comprising a container having flowable material therein shiftable from one position in the container to another to indicate lapse of a predetermined parking period is combined with a coin-controlled mechanism for moving said container to a position for initiating the movement of said flowable material. A housing 1 has a hollow lower extension 2 for mounting on a post and a transparent detachable domelike upper part 3. An hour-glass-like container 20 comprising two compartments 21 and 22 connected by a narrow neck 23 is pivoted on a shaft 19 such that the upper compartment is visible within the dome 3. A circular signal band 25 is supported within each compartment by pins 26 and is hidden by sand when a compartment is brought to the upper position by rotation of the shaft 19. The sand then flows to the lower compartment and after a predetermind time the signal carried on the band 25 is rendered visible. Coin action; coin moved by rotary member to disengage detent; weight. In the embodiment of Figs. 1 and 2 a coin placed in the slot 7 is received in a cut-away, part 6 of a disc 5 mounted on a shaft 8. Rotation of shaft 8 by a handle 9 carries the coin round to fall into shoot 10, the presence of the coin releasing a detent, Figs. 10-14 (not shown), which would otherwise prevent full rotation of the disc 5. At the same time the spur wheel 16 is turned and causes pinion 17 to revolve one and a half rotations thereby reversing the relative positions of the timer compartments 21 and 22. The spur wheel 16 is loosely mounted on shaft 8 and is driven in one direction only by a clutch member 13 which is splined to slide on shaft 8 under action of a light spring 15. Thus on release of handle 9 a spring 12 can restore shaft 8 and disc 5 to the coin-receiving position without moving the timer 20. Automatic operation is provided in the embodiment of Figs. 15 and 16 by means of a main spring 87 wound up by a key inserted in slot 93 in the end of shaft 83 and driving, through a clutch member 92, a spur wheel 91. The wheel 91 engages a pinion 80 on the main timer shaft which is normally restrained from rotation by a pivoted detent 101 engaging a notch in the periphery of a disc 97. The other end of the detent 101 is arranged to protrude into a coin shoot 106 so that a coin inserted in slot 107 moves the detent as it passes and thus frees disc 97 and allows spring 87 to effect rotation of the timer. The detent 101 is pivoted to return under gravity and reenter a notch in disc 97. Two such notches are provided diametrically opposed and hence the passage of a coin results in the desired 180 degrees rotation of the timer.
Patent GB-207052-A (GB)
Abstract: 207,052. Gabbitass, W., and Wadding- ton, A. Dec. 6, 1922. Grates; ashguards.-A front fitting for a firegrate comprises a bottom grate and a pair of front grates, all of which may be adjusted to one of two positions. The fitting shown comprises side members 1, 2 with slotted wings 3 for attachment to the sides of the existing grate and connected by spacing-bars 5. A grate 7 is pivoted in bearings 11 so that it may be adjusted to the inclined position shown in Fig. 2 or to the vertical position shown in Fig. 3, and a pair of front grates 14, 15 are pivoted so that they may be retained in either the horizontal or the vertical position, by means of projections upon them which engage lugs on the side members. In the horizontal position the grates 14, 15 serve as utensil supports. A guard pan 28 resting on supports 29 prevents ashes falling on to the hearth.
Patent GB-1341622-A (GB)
Title: Benzopyran derivatives
IPC: C07C49/403
Filed: 1971-04-19
Abstract: 1341622 Derivatives of hexahydrobenzopyran-5-one SCHERING AG 19 April 1971 [6 Feb 1970] 20724/71 Headings C2C and C2U The invention comprises compounds of Formula I  where R is C 1-4  alkyl, and a process for making them by (a) reacting cyclohexane-1,3-dione with RCOOH: CH 2  in aqueous medium in absence of catalyst and (b) reacting the 2 - (2 - alkanoylethyl)cyclohexane-1,3-dione so formed with a reducing agent (e.g. H 2  + Raney Ni, or NaBH 4 ), followed by treatment with acid. Steroid synthesis with compounds I is exemplified as follows: I (R = Me) with CH 2  : CHMghalide gives 5 - hydroxy - 2 - methyl - 5 - vinyl- 2,3,4,6,7,8 - hexahydro - [5H] - benzopyran which with 2-methylcyclopentane-1,3-dione and subsequent acid treatment affords 3-methyl-4- oxa - #<SP>5(10),8,14</SP> - oestratrien - 17- one; the #<SP>14</SP>- bond is hydrogenated and the #<SP>8</SP>-bond subsequently isomerized with acid to give 3-methyl- 4 - oxa - #<SP>5(10),9(11)</SP> - oestradien - 17 - one. The latter is oxidized (CrO 3 ) to 4,5 - seco - #<SP>9(10)</SP>- oestrene - 3,6,17 - trione which is cyclized with acid to #<SP>4,9(10)</SP>-oestradiene-3,17-dione. The homologous 18-methyl steroids may be obtained starting with 2-ethylcyclopentane-1,3-drone; e.g. 18 - methyl - 17α - ethynyl - 19 - nor - testosterone.
Patent GB-1500603-A (GB)
Title: Coke oven installations
IPC: C10B31/04
Filed: 1975-05-15
Abstract: 1500603 Hoppers HARTUNG KUHN & CO MASCHINENFABRIK GmbH 15 May 1975 [27 May 1974] 20741/75 Heading B8S [Also in Division F4] A coke oven installation comprises a coal bunker having a discharge shoot 7, a plurality of coke oven chambers each having a charging hole 6, and a larry car 1 comprising a hopper 2 mounted on a chassis 25 having wheels 3 movable on rails 5, the upper end of the hopper 2 having a transfer tube or sealing ring 52 which makes a dust-tight connection with the discharge shoot 7 during filling of the hopper 2, and when the hopper 2 is transferred to a position over a charging hole 6 the hopper 2 is lowered relative to the chassis 25 such that its discharge opening 17 is in dust-tight communication with the charging hole 6. The hopper 2 is pivotally supported by means of journals 8 on support arms 9 which are pivotally attached at 10 to the chassis 25, the other ends of the arms 9 being connected by a cross bar 11 to which a toggle-lever mechanism 12 is attached, actuation of the latter causing vertical displacement of the hopper 2 relative to chassis 25. Mounted about the discharge opening 17 of the hopper 2 is a transfer shoot 20 to which a sealing tube 28 is attached by means of a resilient spring plate 29, and a centring nozzle 32 is mounted below the tube 28 and is displaceable relative thereto, and in the position of the hopper 2 in which it is unloading coal into the coke oven chamber, Fig. 2 (not shown), the centring nozzle 32 engages and forms a seal with the oven chamber charging hole 6 while the lower edge of the sealing tube 28 engages in sealing relationship with the upper edge of the nozzle 32. The latter is attached to the chassis 25 by a lever 37, 38, the lever part 38 being attached to a column 39 which is rotatable about the axis of a pivot bar 45 so that the centring nozzle 32 can be swung away from a position under the tube 28 after hopper 2 has been raised up from the charging hole 6. During raising of the hopper 2 the lever 37, 38 and thus the centring nozzle 32 is raised by the engagement of a roller 48 with a shoulder 49 provided on the lever 37, 38. The discharge opening 17 is provided with a pivotally mounted closure 22.
Patent GB-1348851-A (GB)
Title: Plant for the anaesthetization of animals about to be slaughtered
IPC: A22B3/00
Filed: 1972-05-04
Abstract: 1348851 Slaughter houses N E WERNBERG 4 May 1972 [4 May 1971] 20776/72 Heading E1A [Also in Divisions A1 and A5] In an anaesthesia plant a pig 34 is driven out a tiltable gangway 8, in a gas chamber, which temporarily forms the bottom of a gondola 7 which is supported at its ends by pivots 31 in yokes 30 suspended from a pair of paternoster elevator chains 19. When the gate to the plant is locked the gangway 8 is tilted lowering the animal into the gondola, which is then automatically advanced until another gondola is in position. The gangway 8 is then raised and another animal let into the gas chamber. Carbon dioxide is fed through a pipe 29 and is released in measured doses through holes 10 near the animals' heads each time the paternoster stops. Each gondola 7 has guide rollers 23 running on rails 24 fixed to the walls of the chamber, and delivery of the animal is made when rollers 23 engage rails 25, at the exit 26, which swing the gondola outwards about pivot 31 enabling the animal to slide onto a table 27 where it can be slaughtered. The rails 24 then return the gondola to its upright position.
Patent GB-300154-A (GB)
Title: Improvements in or relating to electric transformers
IPC: H01F27/28
Filed: 1927-08-06
Abstract: 300,154. Wright, G. M. Aug. 6, 1927. Addition to 271,950. Transformers.-In making a transformer of the kind in which points in the two windings which are to be at anchored potential lie in a plane at right angles to the axis of the windings as described in the parent Specification, the primary winding P and second winding S are made up in the form of a cable with lappings of silk Sp and Ss as insulation.
Patent GB-239501-A (GB)
Title: Improvements in or relating to cinematographic apparatus
IPC: G03B19/18
Filed: 1925-08-19
Abstract: 239,501. Markus, A. Sept. 5, 1924, [Convention date]. Kinematograph apparatus.-Means is provided, within the casing of a camera having a power drive, for delaying the beginning of the exposure of the film. The delaying means and the camera. mechanism may be operated by the same source of power or by separate sources of power.
Patent GB-295125-A (GB)
Title: An improved rope-pull for motor carriages and other vehicles
IPC: B60D1/18
Filed: 1927-08-08
Abstract: 295,125. Turner, A. H. S. Aug. 8, 1927. Hand - grips. - A hand-grip or ropepull for attachment to the side nf a vehicle to facilitate. the occupants rising from their seats is provided in its interior with a spring e which is fixed to a. fitting a for securing the device to the vehicle, the object of the spring being to maintain the pull in a vertical position and thereby prevent it from being caught when the door is closed. Preferably, the fitting a has an eye c with a depending stem d over which the upper end of the spring e is forced, while the lower end of the spring is fitted with a lead or like plug h adapted to receive a screw k for attaching a wooden knob g. The spring is covered with ornamental cords l passing through the eye c, and the knob g with netting o.