baber/WOPTO huggingface dataset:
Patent GB-961380-A (GB)
Title: Dynamometer system
Inventor: STOKES PETER
IPC: G01L3/20
Filed: 1962-07-30
Abstract: 961,380. Dynamometers. DE HAVILLAND ENGINE CO. Ltd. May 3, 1963 [July 30, 1962, No. 29269/62. Heading G1W. A dynamometer for measuring the horse power of a motive power source comprises a centrifugal pump for circulating liquid in a circuit containing a variable throttle, means for supplying cooling liquid at a controlled rate to mix with the circulating liquid and a thermometer to measure the temperature rise of the cooling liquid. This temperature increase is related to the horse power developed by an engine driving the pump. The engine to be tested is coupled to a shaft 11, (Fig. 1) carrying a four bladed impeller 12 which circulates water in a path 13 radially outwardly then through an annular passage 14 containing an adjustable throttle 15 (detailed in Fig. 2) and into a mixing chamber 16. The load imposed on the engine is dependent on the size of the throttle orifice. The energy developed by the impeller appears as a rise in temperature of the circulating water. This heat is removed by passing cooling water from a pipe 17 through the mixing chamber-16 and out through discharge 18 controlled by a valve 19. Once a steady temperature is attained the temperature rise between pipes 17 and 18, as communicated by thermometer bulbs 23, 24 to a differential thermometer 22, will give a measure of the horse power of the engine, the thermometer being calibrated in horse power units. The throttle valve may comprise a fixed slotted plate 25 (Fig. 2) and a movable slotted plate 26 which can be turned through an angle 27 so that corresponding slots on the plates overlap to a greater or lesser extent. A lever 32 on the plate 26 can be calibrated in terms of the load applied to the engine. In an alternative type of throttle valve (Fig. 3 not shown) there is an annular cylindrical ring surrounding and spaced from the circumferential periphery of the impeller and movable axially to vary the radial discharge from the impeller.
Patent GB-211835-A (GB)
Title: Improvements in and relating to counting apparatus
IPC: G06M1/04
Filed: 1923-11-20
Abstract: 211,835. Dement, I. S. Feb. 24, 1923, [Convention date]. Counters actuated by revolving-mechanism; transfer mechanism; detent mechanism. - A counter suitable for a gas meter comprises a number of numeral wheels 5 .. 8 formed with notches 10 engaged by actuating pawls pivotally mounted on a frame 17 pivoted at its lower edge. This frame due to gravity normally occupies a forward position shown dotted in Fig. 5 and at each actuation it is raised to the vertical position and allowed again to fall forward so as to drive the counter by one step. The frame is oscillated by a pin 20 fixed to a worm wheel 21 driven from the prime mover by a worm 22, the pin engaging the forward edge of a plate 19 extending from the frame. In order to ensure the falling forward of the frame and also to enable actuation to occur independently of the direction of rotation of the wheel 21 the plate 19 is extended to provide an arm 24 adapted to be likewise engaged by the pin 20. Stops 32 on the frame enter the notches in the numeral wheels at the end of each actuation to prevent overthrow. Transfer is effected by making the pawls 11 .. 14 of progressively diminishing dimensions and providing each wheel with a deep notch 16. In the form shown, the peripheries of the wheels are constituted by two superposed layers of sheet-metal, one or both of which is cut away to form the ordinary notches 10 or the deep notch 16. Each wheel is provided with a gravity detent 25 pivoted on a common spindle 27 and guided by slots in a fixed bar 28. An upstanding finger 29 on each detent is adapted to be engaged by a part 30 on the corresponding actuating pawl when the forward movement of this takes place, and consequently the detent is raised from contact with the numeral wheel during this stroke. At the end of the stroke the detent is forced again into engagement by contact with its upper edge of the portion 31 of the frame 17.
Patent GB-537070-A (GB)
Title: Manufacture of azo pigments
IPC: C09B41/00
Filed: 1939-11-03
Abstract: 537,070. Organic pigments. TWITCHETT, H. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 3, 1939, No. 29301. [Class 2 (iii)] The azo pigment, 3-nitro-4-aminotoluene # acetoacetanilide, is modified to obtain a product of a similar shade but of a greater tinctorial strength by effecting the coupling under such conditions that the coupling product of diazotized 3-nitro-4-aminotoluene with acetoacet-4- chloroanilide is present in the coupling medium either during the coupling or immediately thereafter, the second coupling component being used in a molecular proportion of 5 to 40 per cent. of the total amount of the two coupling components. In examples, (1) a solution of diazotized 3-nitro-4-aminotoluene is added slowly to a suspension of the two arylides obtained by dissolving the mixture in dilute sodium hydroxide and adding acetic acid and sodium acetate and, after stirring, the precipitate is filtered off, washed and dried ; (2) 90 per cent. of the diazo solution is added slowly to a similar suspension of acetoacetanilide, a similar suspension of acetoacet-4-chloroanilide is then added, whereupon the remaining 10 per cent. of the diazo solution is slowly added and the precipitate is filtered off &c. as in (1), (3) similar suspensions of acetoacetanilide and acetoacet-4-chloroanilide. are similarly coupled separately and simultaneously with 90 per cent. and 10 per cent. respectively of the diazo component and the resulting suspensions are immediately mixed and stirred and the precipitate is filtered off &c. as in (1); (4) 10 per cent. of the diazo solution is slowly added to a similar suspension of acetoacet-4-chloroanilide, a similar suspension of acetoacetanilide is then added, whereupon the remaining 90 per cent. of the diazo solution is slowly added and the precipitate is filtered off &c. as in (1). Specification 517,456 is referred to.
Patent GB-738359-A (GB)
Title: Improvements in or relating to the preparation of aromatic hydroxy carboxylic acids and salts thereof
Inventor: MOSELEY JOHN CAMPBELL
IPC: C07C51/15
Filed: 1953-10-23
Abstract: Alkali metal aromatic hydroxy carboxylates or mixtures thereof are prepared by reacting an alkali metal phenoxide, dissolved or dispersed in a neutral or basic organic solvent, which solvent is a hydrocarbon, ketone, ether, amine or heterocyclic compound, with carbon dioxide under substantially anhydrous conditions, in the presence of an added amount of neutral aromatic hydroxy carboxylate. By "neutral" aromatic hydroxy carboxylate is meant a salt of the acid in which the acidic hydrogens of all the hydroxy and carboxyl groups in the molecule have been replaced by alkali metal.  The phenols whose alkali metal phenoxides may be used as starting materials may be mono- or polynuclear and substituted by ether groups or carboxylic or sulphonic acid groups.  Specified phenols are phenol, cresols, alkyl phenols, halophenols, nitrophenols, aminophenols, naphthols, 5 : 6 : 7 : 8-tetrahydro-2-naphthol, halonaphthols, nitronaphthols, aminonaphthols, 2-and 4-hydroxydiphenyl, anthrols, p-benzylphenol, catechol, hydroquinone and 1 : 2- and 1 : 5-dihydroxynaphthalene. The neutral aromatic hydroxy carboxylate added in the process is usually, but not essentially, derived from the same phenol as is used in the process.  The anhydrous mixture of alkali metal phenoxide and neutral aromatic hydroxy carboxylate is prepared by mixing the phenol and aromatic hydroxy carboxylic acid possibly in the form of their alkali metal compounds, and then if necessary completing the replacement of any remaining acidic hydrogen atoms in the mixture by reaction with alkali metal, alkali metal hydroxide or alkali metal alkoxide, followed by removal of any water or alcohol formed.  For the free phenol, 105 per cent of the theoretical amount of alkali required is added.  For the free aromatic hydroxy carboxylic acid, from 90 to 200 per cent of the theoretical amount of alkali, is added.  The preferred solvents for the reaction are aromatic hydrocarbons such as toluene, xylenes, ethyl benzene and cumenes. Temperatures of from 100 DEG  to 300 DEG  C. and pressures from atmospheric up to about 2000 pounds per square inch guage may be employed.  Under these conditions about 3 to 5 hours are required for reaction.  The phenols used in the examples were mixtures of alkyl phenols obtained by alkylating phenol with olefines containing 14-18 carbon atoms.  In examples (1) the effect of varying amounts of sodium hydroxide relative to the added alkali metal aromatic hydroxy carboxylate on the acid value of the carboxylated product, and hence on the degree of conversion of phenoxide to hydroxy carboxylate, was determined; (2) and (3) the effect of varying amounts of added neutral alkali metal aromatic hydroxy carboxylate on the acid value of the carboxylate was determined; (4) the process of the invention was modified by rephenating and recarboxylating the initial carboxylation product by the method of Specification 734,598.
Patent GB-723613-A (GB)
Title: Vehicle and like loaders
Inventor: MEATS WILLIAM HENRY
IPC: B60P1/44
Filed: 1952-11-22
Abstract: 723,613. Platform elevators on vehicles. TELEHOIST, Ltd. Nov. 19, 1953 [Nov. 22, 1952], No. 29553/52. Classes 78 (3) and 78 (4). A loader, particularly intended for attachment to a vehicle, comprises a pair of hydraulically actuated parallelogram linkages a, m pivoted to the vehicle at q and to a pair of brackets O, secured to a platform n, at y; the arrangement being such that pivots y lie on opposite sides of a vertical plane X-X which passes through the centre of the platform. In a modification the link m may be provided on one linkage only. Each link a is braced by members d, e, and a thrustor h, i which is pivoted to the vehicle at j acts on a rod f interconnecting the two pairs of members d, e. To facilitate easy removal of the loader the pivots q consist of removable pins and an eye k is provided on the thrustor for attachment to a pin (not shown) on the vehicle.
Patent GB-422503-A (GB)
Title: Improvements in or connected with water heaters
IPC: A47J27/21
Filed: 1933-10-25
Abstract: 422,503. Heating water. STOTT, V. H., SCHOFIELD, L., STOTT, R. E., and JONES, A., Vernon Works, Lee Street, Oldham. Oct. 25, 1933, No. 29566. [Class 64 (i)] In a heater for supplying boiling water and for heating urns A and B by supplying steam to jackets thereon, condensed water and steam are led from the urn jackets by pipes 1 and 3 to a vessel 4 disposed above the heating burner C and pass from thence up a pipe 5 back to the boiler. The steam formed in the boiler is led from a steamcollecting bell E through a pipe F and pipes G, provided with stopcocks G<1>, to the urn jackets. The bell E may be provided with a conical top, or it may be dispensed with and the top of pipe F bent over. The steam from pipe G may pass through spirals of tubing contained in the jacket spaces of the urns. Pipes G may be dispensed with and pipes F and 3 both connected to pipes 1. Specification 412,002 is referred to.
Patent GB-830167-A (GB)
Title: Stabilizer for a wheel supported truck
IPC: B60B33/00
Filed: 1957-09-20
Abstract: 830,167. Safety wheels. YALE & TOWNE MANUFACTURING CO. Sept. 20, 1957 [Oct. 12, 1956], No. 29611/57. Class 108(2) A device to prevent the tipping of a three wheel truck comprises dome shaped members 16 rotatably mounted on either side of the truck frame 10 on shafts 18 inclined rearwardly in a plane parallel to the longitudinal axis of the truck. The height of the member can be adjusted and then locked by a wedging bolt 26. The arrangement is to prevent jogging caused by normal wheels. Specification 704,317 is referred to.
Patent GB-353326-A (GB)
Title: Drawing and winding drum for multiple pass wire drawing machines
IPC: B21C1/14
Filed: 1930-10-03
Abstract: 353,326. Drawing wire. NACKEN, W., 12, Mittelbacherstrasse, Gr³na, near Chemnitz, Germany. Oct. 3, 1930, No. 29612. [Class 83 (iv).] An inverted drawing and winding drum for multiple pass wiredrawing machines is driven from below and the weight of the coil and drum is taken by a footstep bearing n, the drum f being surrounded by a bell k rigidly secured to the shaft and connected thereto by keys o, p so that it may be removed when the coil is wound by means of a handle i. The drum-shaft is driven by gearing d, or, when winding heavy coils necessitating a long drum, the bell is driven directly by a toothed wheel or belt. The wire is supported by arms h which are loosely mounted in a cross-shaped piece g so that, in operation, they are projected by centrifugal force and, for removing the coil, they may be retracted. A spring r supports the arms and is compressed by the weight of the wound coil.
Patent GB-364553-A (GB)
Title: System of electric traction utilizing compound motors
IPC: H02P3/14
Filed: 1930-10-03
Abstract: 364,553. Control of several D. C. motors. BACQUEYRISSE, L., 53, Ter quai des Grandes Augustines, Paris. Oct. 3, 1930, No. 29643. Convention date, Oct. 8, 1929. [Class 38 (iii).] Field and armature control ; regenerative braking.-Compound wound traction motors have their armatures 7<1>, 7<2>, and their series field 8<1>, 8<2>, permanently connected in series across the supply during starting, normal operation, and during regenerative braking, the shunt fields 9<1>, 9<2>, which are also permanently in series across the supply being varied by a regulator 10, to give speed control. The motors which are fitted with commutation poles, have a larger air gap, and more commutator segments than usual, and the ratio of the field ampere turns to the induced armature ampere turns is large. The polepieces are so shaped that the air gap is greater at the extremities than at the central portion.
Patent GB-230889-A (GB)
Title: Improvements in hat finishing machines
IPC: A42C1/08
Filed: 1923-11-24
Abstract: 230,889. Turner, A., and Turner, W. E. Nov. 24, 1923. Pouncing.-Relates to machines of the kind described in Specifications 15110/12 and 13891/13, wherein a rotating hat block is carried by a horizontal shaft in a head swinging about a vertical axis while a pouncing pad oscillates in contact with the hat. A two-speed gear is provided for the swinging of the head and automatic means for giving the slower movement when the sides a.re being treated and the faster movement when the. corners and tip are in contact with the pad. An adjustable oval motion mechanism is interposed between the hat block and its rotating shaft, and this shaft is provided with manually changed two-speed gearing housed in the swing- ing head. The machine comprises a box-like casing 1 housing a main driving shaft 14 a driving shaft 87 for the usual oscillating pouncing pad, driven from the shaft 14 by spur gearing through a clutch, and a vertical shaft 3 driven by bevel gears 21. The shaft 3 drives two bevel gears 4, 5 meshing with gears 6, 7 either of which can be clutched to a shaft 8 which swings the head 2 by worm gearing 26, 27 and the usual ratchet wheel 13. A double clutch 11 is operated by a lever 28 actuated by a cam on the swinging head to increase the speed of swing when the corners and tip of the hat are being treated. To rotate the hat block a gear wheel 22 on the shaft 3 drives, by spur and bevel gearing 23, 38, 35, 33, 41 two gear wheels 42, 43 on the hat block shaft 30, either of which may be clutched to the shaft by a handle 45. The hat block is provided with an oval motion mechanism of the type described in Specification 9914/98. The pouncing pad is kept up to the hat by a cord 83 connected to a weight housed in a casing provided with an inspection door 86.
Patent GB-604947-A (GB)
Title: Method of improving the adsorbent properties of alumina
IPC: B01J20/08
Filed: 1945-11-07
Abstract: Alumina is heated to about 300 DEG  C., thrown while hot into a cold solution of hydrochloric, sulphuric, nitric or acetic acids and heated again to a temperature of 350-290 DEG  C. to improve its adsorbent properties.  The acid penetrates deeply owing to the vacuum set up by the chilling.  The Specification as open to inspection under Sect. 91 describes also the application of the process to carbon and earths for oil decolorisation.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1044859-A (GB)
Title: Improvements in or relating to a holder for a sheathed brush or the like
Inventor: SEAVER DONALD ALLEN
IPC: A46B7/02
Filed: 1965-07-13
Abstract: 1,044,859. Sheathed brushes. SCOVILL MANUFACTURING CO. July 13, 1965, No. 29745/65. Heading A4K A sheath arrangement for a brush comprises a tubular holder shell 10 with a closed bottom 11, a brush 17 fitted into the upper end by means of a ferrule and a sheath 22 telescoped over the shell 10 and having a sheared nib 25 which engages in a longitudinal groove 12a pressed into the side wall of the shell 10.
Patent GB-743092-A (GB)
Title: Improvements in and relating to hydraulic elevating apparatus
IPC: B60P1/54
Filed: 1953-10-28
Abstract: 743,092. Slewing jib-cranes. SUNDIN, E. O. Oct. 28, 1953 [Dec. 6, 1952], No. 29801/53. Class 78 (4). A jib 9, Fig. 5, pivoted at 6 to piston 5 working in cylinder 2, is rotated by engagement of rack 23, Fig. 2, with gear ring 22, the rack being actuated. by pistons 24, and the gear ring rotating about cylinder 2 so as to rotate pulleys 18 and thus, by means of cable 11, to rotate the jib. Additionally, when the piston 5 is elevated the jib rises horizontally till projection 13 on cable 11 engages abutment 14 on jib 9, at which point the jib continues to rise but pivots about axis 6. A screw permits adjustment of the rack 23.
Patent GB-674113-A (GB)
Title: Improvements in or relating to liquid level sensitive apparatus
IPC: G01F23/26
Filed: 1948-02-24
Abstract: 674,113. Liquid level measurement; capacitance and inductance measurement; electric condensers. WHEELCO INSTRUMENTS CO. Feb. 24, 1948 [May 3, 1939], No. 29861/50. Divided out of 674,034. Class 37. In a liquid level indicating device (Fig. 1) a sealed bifurcated glass tube 45 immersed in the liquid contains the parallel electrodes 43, 44 of a capacitance having the liquid for dielectric which is connected across the grid inductance of an oscillator tube 50, whose anode circuit is tuned by a parallel inductance-capacitance circuit 57, 58. The anode current flows through one winding 60 of a differential relay whose other winding 61 is energized from a D.C. source through a resistance 64 variable by a split-field D.C. motor 72. When the liquid is at datum level, the oscillator grid circuit is tuned to a predetermined frequency, differing from that of the anode circuit such that the relay is balanced in its neutral position. Changes in liquid level in either sense vary the grid capacity so that the grid circuit resonant frequency approaches or recedes from the anode frequency, whereby the anode current decreases or increases and the relay contact 76 is deviated to contact 78 or 79 to drive the motor in a direction which readjusts the resistance 64 to restore the relay contact to its neutral position. The motor drives a recorder and level indicator and an ammeter 63 in the neutralizing circuit indicates liquid level. The liquid level variable capacitance is replaceable by a similarly variable inductance, Fig. 2 (not shown). Hunting is prevented by an interrupter 85, 86 in the motor control circuit which is operated at timed intervals by cam 83. Specification 674,034 is referred to.
Patent GB-1157481-A (GB)
Title: System for the Analysis of Heterogenous Media.
IPC: G01N33/48
Filed: 1966-07-04
Abstract: 1,157,481. Counting and sizing particles. INSTITUT DE RECHERCHES DE LA SIDER URGIE FRANCAISE. 4 July, 1966 [2 July, 1965], No. 29889/66. Heading G4D. In an apparatus for analysing a sample of a heterogeneous medium, e.g. for estimating the distribution of petrographic elements in ores, a number of points of the sample are scanned by a microscope 1 whose real image is detected by a photo-electric cell 5 which produces a signal of a magnitude varying with the optical density of the sample being analysed. The signal is fed to a threshold device 10 producing outputs 1 or 0 according as the instantaneous value of the signal is adjudged optically dense or not, these outputs being fed into bi-stable stages of shift registers 12a, 12b, 12c, 12d, under the control of timing pulses. Each bi-stable unit supplies 1 or 0 signals to input lines of a matrix 17, which lines are selectively electrically connected to output lines 18 connected via gates 21 to counters 19. The matrix is arranged to respond to outputs from each pair of bi-stable units at selected spacings so as to increment a corresponding counter 19 whenever the pair is (1, 1). A further counter records the total readings taken so that a function F (h) may be calculated. This function is the proportion or probability of (1, 1) pairs having a distance "h" between the two observed points where the distance "h" depends on the particular pair of points considered. The graph of the function F (h), (Fig. 6, not shown) can then be interpreted to give various physical properties of the sample being analysed. A change-over switch 24 is provided in the input lines of the counters 19 so as to compensate for sample scans taken in opposite directions. A number of microscopes may be used with cells 5 responsive to different colours.
Patent GB-930777-A (GB)
Title: A suturing instrument
IPC: A61B17/072
Filed: 1959-09-02
Abstract: 930,777. Stapling. B. S. BOBROV. Sept. 2, 1959, No. 29912/59. Class 89 (3). [Also in Group VI] An instrument for suturing the intestines by stapling has self-aligning jaws for clamping the tissue to be operated on. Arms 1, 2, Fig. 1, are pivoted at 6 and grip the tissue between jaws 9, 30, being held by a clamping screw 5. Tantalum staples are arranged in a row in a slot behind a cover-plate 11 and are pressed out individually by a pusher member 25 which forces them through the tissue and causes them to be bent round, to secure them, by engaging a groove in the lower jaw 30 which, to ensure accurate alignment and co-operation, is pivoted at 33 to the arm 2. In order to carry out a particular form of operation on the stomach a second parallel row of staples is inserted by a similar pusher member 4 on the further side of the jaw 9. The pusher member is automatically advanced one staple width at a time by a spring latch member 27, Fig. 7, which is pressed to the right, to engage the adjacent staple recess 10, by inclined surface 43 when the pusher 25 is depressed. This tensions the limb 44 of a spring 26 so that the carrier plate 24, together with the pusher 25, is drawn one space to the right as soon as the pusher is released.
Patent GB-757579-A (GB)
Title: Improvements in or relating to valve mechanism
Inventor: AYRES JOHN ERSKINE
IPC: B65D83/14
Filed: 1954-10-18
Abstract: 757,579. Forcing liquids by gaseous pressure. DODGE & SEYMOUR, Ltd. Oct. 18, 1954, No. 29949/54. Class 102(2). [Also in Groups XVII and XXIX] A discharge valve in a container 10a for liquids under gaseous pressure comprises a rubber or plastic disc 19 with a metal strengthening rim 17, a boss 16 on the disc to engage the valve seat constituted by the inturned edge of the opening in the container, and an opening or openings through the disc spaced from the boss. As shown, the openings are provided between arms which, with the boss, form a spider. A rubber or plastic spout 28 is provided, and by pressing downwards or sideways on the spout, the latter will buckle and a boss 29 thereon will depress the boss 16 and so open the valve. A protective cover 33 for the spout is secured by arms 35 to a ring 34 fixed to the container. The whole is made of frangible material so that, by twisting the cover, the arms 35 will break and the cover can be removed. The rim 17 may carry a depending cup-shaped extension to which a siphon tube is attached. In a modification, the spout is inclined and a diaphragm in the lower portion thereof carries a projection which contacts the boss 16 when the diaphragm is depressed.