baber/WOPTO huggingface dataset:
Patent GB-261550-A (GB)
Title: Improvements relating to differential air thermometers
IPC: G01K1/20
Filed: 1925-12-01
Abstract: 261,550. Scientific & Projections, Ltd., Fairweather, C., March, A. S, and Winders, G. L. Dec. 1, 1925. Thermometers. - In a differential air thermometer comprising containers A, B connected by tubes a, b to opposed flexible chambers A<1> B<1> which differentially operate an indicating or recording arm D, the containers are of such relative sizes, having regard to their normal working temperatures, that for the same temperature change in either box substantially the same amount of movement is imparted to the arm D. The thermometer is particularly intended for use in a gas calorimeter in which the heat of combustion is imparted to a stream of water, the containers A, B being situated in the hot and cold flows respectively. To compensate for changes in temperature of the surrounding air, compensating mechanism is interposed between the rod C connecting the chambers A<1> B<1>, and the arm D. In Fig. 3 the compensating device comprises a bimetallic spiral G attached at one end to the gimbal support E and and at the other end to a mount F carrying the arm D.
Patent GB-1399048-A (GB)
Title: Process for the production of alpha alumina monohydrate
IPC: C01F7/74
Filed: 1973-06-26
Abstract: 1399048 α-Alumina monohydrate W R GRACE & CO 26 June 1973 [17 July 1972] 30370/73 Heading C1A α-Alumina monohydrate is prepared by forming an aqueous solution of aluminium sulphate and mixing with a compound which yields ammonia on thermal decomposition, thermally decomposing said compound to raise the pH to 4À5-6À0 to thereby precipitate homogeneous basic aluminium sulphate and reacting this, in aqueous medium with one of NaOH, KOH, NH 4 OH or sodium aluminate in an amount sufficient to raise the pH to 9À0-10À5 thus to produce the α-alumina monohydrate. The ammonia yielding compound is preferably urea, thiourea, biuret, guanidine, or a suitable salt or derivative. Ammonia may first be added to the original aluminium sulphate solution to raise the pH to 2À7-3À5 before mixing the ammonia yielding compound. The alumina so produced has a pore volume of 0À65-0À8 c.c./g., a pore dia. of 95-125  and surface area of 200-300 m.<SP>2</SP>/g.
Patent GB-1112038-A (GB)
Title: Flexible-vaned rotary pump
IPC: F04C15/06
Filed: 1965-07-16
Abstract: 1,112,38. Rotary pumps; centrifugal pumps. ITT INDUSTRIES, Inc. July 16, 1965 [Aug. 13, 1964], No.30379/65. Heading F1C and F1F. A rotary pump includes a rotor 48 having flexible vanes 50 that engage with a cam ring 38 shaped such that the vanes effect positive displacement of the working fluid and ejection thereof into a tangential outlet-passage 94 by centrifugal action, pressure being increased in said passage due to its divergent configuration. The fluid enters the pump through an inlet passage 80 having two branches 82 with the passage 94 lying therebetween, which branches are substantially tangential to the ring 38 and terminate at ports 84 in wear-plates 44 adjacent the sides of the rotor. The lateral edges of the vanes 50 are rounded, Figs. 4 to 4b (not shown), to minimize obstruction of the incoming fluid. An end section 20 of the housing 12 is attached to a mounting member 26 by bolts 24, which member includes a pedestal 30 and can be orientated relative to said section in any one of four directions.
Patent GB-216454-A (GB)
Title: Improvements in or relating to a device for moistening and sealing envelopes
IPC: B43M5/02
Filed: 1923-12-03
Abstract: 216,454. Sample, E. W. Dec. 3, 1923. Damping-appliances, hand.-A device for closing and sealing envelopes comprises a water vessel 4 in which is mounted a rubber roller 9. Above the roller 9 extends an arm 5 carrying a bent spring plate 6 terminating in fingers pressing on the surface, of the roller 9, so that on passing the envelope, between the fingers and the roller the roller is rotated and moistens the flap, For the plate 6 may be substituted a conical roller 9<1> pressed against the roller by a spring 6<1> as shown in Fig. 7.
Patent GB-1150564-A (GB)
Title: Inertia Operated Flare
IPC: F42C15/24
Filed: 1966-07-06
Abstract: 1,150,564. Flares. AUSTRALIA, DEPARTMENT OF SUPPLY. 6 July, 1966 [9 July, 1965], No. 30430/66. Heading F3A. Flare to be carried by a rocket and ignited as the rocket reaches a predetermined acceleration comprises a nose cone 13, 14 and a body 1 containing a flare composition 10 which is arranged to be ignited by an electrical igniter 18 when an inertiaoperated switch 4 closes a circuit including the igniter and a battery 3, electrical sockets 5 and 6 being provided in the circuit whereby plugs 7 and 8 can be inserted to modify the electrical circuit according to whether the circuit is to be rendered safe or armed for use. Plugs to test the circuit can also be inserted in the sockets. The wall 16 is fusible.
Patent GB-206700-A (GB)
Title: An improved method and apparatus for transmitting power from a steadily rotating shaft to a driven shaft
IPC: F16H33/12
Filed: 1922-11-07
Abstract: 206,700. Constantinesco, G. Nov. 7, 1922. Variable-speed gearing rendered automatic by the action of an oscillating mass, as described in Specification 185,022, is provided with means to maintain the mean position of the parts for either direction of rotation of the driven shaft. The floating lever d connected at its middle to a driving connecting-rod c is connected at its ends by links e<1>, 1 to similar levers g, 2 depending from fixed pivots h, 3. The oscillating mass k is secured to the crank-link e<1>. The oscillating system is prevented from undue displacement to either side by stops n, 5 butting against the upper extensions m, 4 of the levers g, 2. The reversible ratchets driving the shaft x may be of the kind described in Specification 205,293.
Patent GB-602977-A (GB)
Title: Clutch mechanism
IPC: F16D41/02
Filed: 1945-11-14
Abstract: 602,977. Ratchet-clutches. SINGER MANUFACTURING CO. Nov. 14, 1945, No. 30452. Convention date, July 16. [Class 80 (ii)] A jamming-roller clutch, adapted to be disengaged in a definite stopping position after a predetermined number of revolutions, in a button-hole stitching machine, comprises a clutch-ring 22 having an offset lug 24, which pivots in a notch 20 in a driven member 16. fast on a shaft 10, about an axis spaced from the shaft-axis, so as to cause clutching-rollers. 27, 28, carried in diametrically-opposed pockets 29, 30 in the clutch-ring, to move from a symmetrical non-driving position, Fig. 4, to an off-centre position in which they jam between the pockets and the surrounding internal cylindrical surface of a freely-mounted driving pulley 13, and transmit drive through the clutch-ring 22 and lug 24 to the driven member 16. At the end of the operating period the clutch-ring 22 is pivoted back against a stop 26 on the driven member 16, to return the clutchrollers 27, 28 to the symmetrical non-driving position, by a stop 41 which is automatically advanced radially inwards to engage a notch. 42 in the clutch-ring 22 whereby the latter is held and the driven member is brought to rest resiliently and without shock by compression of a spring 37 in a circumferential pocket between a lug 39 on the driven member 16 and the roller-pocket 30 on the clutch-ring 22. Prior to engaging the notch 42, the stop 41 rides up a cam-surface 43 on the clutch-ring 22 so as to brake the driven member. The base 31 of the clutch-roller pocket 30 is inclined to prevent clutch re-engagement on rebound and also to reduce the starting-load shock.
Patent GB-495998-A (GB)
Title: Improvements in or relating to computing devices
IPC: G06G1/00
Filed: 1937-11-08
Abstract: 495,998. Calculating-apparatus. ALLDERDICE, JUN., C. E. Nov. 8, 1937, No. 30608. [Class 106 (i)] A computing-device comprises a plurality of sets of fixed and of movable scales, each scale having an identifying symbol, and each scale being evenly divided, the distance between the divisions on any fixed scale being a given proportion of the distance between the divisions of the preceding scale in the same set. In the embodiment described, a number of sets movable of scales one set being shown in Fig. 5, is carried by a drum rotated by a knob 19, Fig. 1, to expose any scale of any set through an aperture 18 adjacent a plate 13 carrying a number of sets of fixed scales as shown in Fig. 3. There is a set of fixed scales for each set of movable scales carried by the drum. Thus the four fixed scales G, H, J, K, correspond to the drum scales shown in Fig. 5. All the scales are evenly divided but the number of divisions on scale H equals the number on scale G multiplied by X /Y, the number on J equals the number on H multiplied by X/Y, and so on. The drum scales are identified by numerals 12. In the example given it is desired to determine the length of various weights of a certain fabric knowing that 30 yards weigh 5 lb. The top scale 31, Fig. 5, is aligned with the aperture 18 and a cursor 20 is positioned adjacent the marking 5. It is then seen that scale J carries the nearest 30 marking to the right of the cursor. The latter is moved to this 30 and the drum is rotated until another marking 5, in this case on the scale 60, is under the cursor. This procedure determines the most suitable scales for calculations relating to the given fabric. The length of any other weight of the given fabric can then be determined by correlating the weight on scale 60 with the length on scale J by means of the cursor. The reference J60 can be noted so that, when the same fabric is again being considered, the same scales can immediately be brought into use.
Patent GB-378714-A (GB)
Title: Improvements in or relating to casings or the like for drugs or medicines
IPC: A61K9/48
Filed: 1931-11-04
Abstract: Coatings for medicines intended to pass unchanged through the stomach but to come into action in the intestines consist of mixtures of cellulose esters or ethers with organic compounds soluble in the intestines, such as triglycerides, waxes of low melting point, lipoids, lecithin, cholesterin, and bile acids. The mixtures may be used for coating pills or for the manufacture of capsules.  Specified mixtures are cellulose nitrate and olive oil dissolved in alcohol-ether; cellulose acetate and castor oil dissolved in acetone and applied as an outer coating to a pill previously coated with sugar-gelatine; and nitro-cellulose and lecithin dissolved in alcohol-ether and used for making capsules. Coatings of cellulose esters or ethers without admixture are referred to.
Patent GB-1196863-A (GB)
Title: Improvements in or relating to Hydrofoil Craft.
Inventor: SIMONDS MARK HENVILLE
IPC: B63B1/28
Filed: 1968-06-27
Abstract: 1,196,863. Hydrofoil craft. SOUTHERN HYDROFOILS Ltd. 23 June, 1969 [27 June, 1968], No. 30640/68. Heading B7A. A hydrofoil craft 1 is supported by a pair of laterally-spaced submerged foils 2a and a single, submerged stern foil, Fig. 1 (not shown), the angle of foils 2a or of flaps thereon, being controlled by reference foils 6 extending laterally and downwardly from the craft and pivoted about longitudinal axes of the craft. Increased immersion of one of foils 6, due to the corresponding side of the craft moving downwards, causes the foil 6 to pivot upwardly and, through the mechanical linkage shown, or hydraulic or electric linkage, to increase the angle of incidence of the corresponding foil 2a, to raise the affected side of the craft. Similarly decreased immersion of one of the reference foils causes it to pivot downwardly and decrease the angle of its corresponding foil 2a. The movement of foils 6 is damped by hydraulic damper 15. Control by the craft pilot is superimposed on the coupling between foils 6 and 2a. Stop means limit the movement of foils 6 to 50 degrees, with an upper limit of 10 degrees from the horizontal. Foils 6 may be retractable beneath the craft.
Patent GB-1481398-A (GB)
Title: Preparation of hexamethyleneimine
IPC: C07D295/023
Filed: 1975-07-23
Abstract: 1481398 Preparation of hexamethyleneimine ASAHI KASEI KOGYO KK 23 July 1975 [25 July 1974 15 Aug 1974 8 Oct 1974 28 Nov 1974 13 March 1975] 30821/75 Heading C2C A process for preparing hexamethyleneimine from hexamethylenediamine comprises continuously reacting hexamethylenediamine at 70‹ to 180‹ C. in an inert solvent using nickel catalyst and/or cobalt catalyst while maintaining the concentrations of hexamethyleneimine and hexamethylenediamine in the reaction mixture at 10% by weight or less and 25% by weight or less, respectivly by removing the hexamethyleneimine from the reaction system as soon as the hexamethyleneimine is formed. The inert solvent may be water or an inert oranic solvent. The process may be carried out in the presence of hydrogen.
Patent GB-474320-A (GB)
Title: Process and apparatus for continuous digestion of starchcontaining raw materials or the like
IPC: C12C7/06
Filed: 1936-11-11
Abstract: 474,320. Glucose. LOGINOV, A. Nov. 11, 1936, No. 30831. [Class 127] [Also in Group XIII] Flowing masses of a starch-containing raw material are digested and hydrolized by repeated treatment with fresh steam jets over large effective surfaces. The material mixed with water is fed by a pump to the top of a column in sections, each comprising a charging hopper 1 with an outlet nozzle 5 surrounded by a narrow annular nozzle 4 admitting steam under pressure from an inlet 3 and a mixing chamber 7 with a perforated bottom 10, the nozzles opening into said chamber being closed by a spring-pressed conical valve 6 on which the atomized mixture is thus spread as a thin layer. A central steam inlet may also be provided above the valve 6. Two or more columns each with a delivery pump in front may be connected in series, or each column section may have several nozzles and valves in parallel. The column may be mounted on a bracket 30 on a wall.
Patent GB-1067258-A (GB)
Title: Improved counting device
IPC: G06M1/30
Filed: 1965-07-20
Abstract: 1,067,258. Counters. VEEDER INDUSTRIES Inc. July 20, 1965 [July 21, 1964], No. 30834/65. Heading G4D. A counting device comprises a counter having a plurality of coaxial number wheels and associated reset cams 60, pivotally mounted transfer pinions 138 to 141 associated with the number wheels, pivotal reset fingers 64 engageable with cams 60 and reset mechanism, including a reset shaft 30, rotatable about an axis parallel to the counteraxis and resetting means 78 for resetting the number wheels by causing, sequentially, upon rotation of shaft 30 in one angular direction, withdrawal of the transfer pinions from engagement with the number wheels; pivotal movement of the reset fingers into engagement with cams 60 to reset the number wheels; return of the transfer pinions whilst said number wheels are held in their reset positions; and upon rotation of shaft 30 in the opposite direction, disengagement of the reset fingers from said cams 60. As illustrated in Fig. 4 (not shown), anti-clockwise angular movement of reset shaft 30, through cam (149) and follower (152) causes a yoke (146) to pivot about shaft 66. Yoke (146) supports pinion shafts 142, 143 on which are mounted mutilated transfer pinions 138 to 141. Anti-clockwise movement of yoke (146) withdraws the pinions 138 to 141 from their operative positions in mesh with number wheel drive gears 145. For aligning the pinions for re-engagement with drive gears 145, the pinions are provided with aligning plates or cams 171 having a polygonal contour. Plates 171 are adapted to engage aligning bars 172, 174. Anti-clockwise movement of reset shaft 30, through fixed and floating cams 80 and 84 and pin 74 actuates reset fingers 64 to engage cams 60. The cams 80, 84 and 149 are so arranged that the above mentioned sequential operations take place. On initial rotation of shaft 30 by a reset lever (40) (Fig. 2, not shown), a clutch (54) is disengaged which disengages the drive train to the counters. A mechanism illustrated in Fig. 6 (not shown), causes angular displacement of the lowest order number wheels to avoid " deadcentre " engagement during resetting of the number wheels and alignment of the transfer pinion.
Patent GB-772227-A (GB)
Title: Improvements in or relating to electric power converting and controlling installations in, or for use in, electric locomotives
IPC: B60L9/10
Filed: 1955-10-28
Abstract: 772,227. Control of D.C. motors. SIEMENS-SCHUCKERTWERKE AKT.-GES. Oct. 28, 1955 [Oct. 28, 1954], No. 30970/55. Class 38(3)  A converting and controlling installation for an electric locomotive comprises. a single-phase synchronous motor 3 adapted to operate at the voltage of the supply-line 1, and driving a three-phase synchronous generator 5 having an exciter 6. The output of the generator is rectified by a bank of rectifiers 9 which feed the traction motors 10-13, whereby the speed of the locomotive is controlled by a regulator 7 in the excitation circuit of the generator 5. The individual phases of the rectifier bridge consist of a number of series and parallel-connected rectifiers (only the series-connection being shown). A single-phase starter motor 17 is used for bringing the motor-generator set up to synchronous speed, this starter motor being supplied through transformer 15 and' a capacitor 16 being provided to establish the required rotating field. A separate three-phase supply 18 is used for auxiliary operations in the locomotive. When the generator terminal voltage drops to a predetermined value, relays 14 are actuated to short-circuit some of the rectifiers, so that the number of rectifiers in use is adapted to the existing voltage and load of the generator. The relays 14 are rendered ineffective during the starting period of the locomotive so that the automatic adaption of a number of rectifiers is arranged to take place with an appropriate time delay, only when steady operation conditions have been attained. The motor 3 and generator 5 are preferably constructed as an enclosed two-bearing machine having circulation cooling involving the use of hydrogen or air. In the case of small powers, rectifiers of the cuprous oxide or selenium types are employed. For the control of high powers, rectifiers of the semi-conductor germanium or silicon type may be used. In addition, it is possible to employ rectifiers of semiconductive material consisting of certain selected binary compounds (such as indium antimonide and indium arsenide), in which one component belongs to Group III and the other to Group V of the Periodic System. The semi-conductor rectifiers may be disposed in sealed vessels filled with neutral gas, and cooled by the circulation of oil, water, or air. The traction motors may be adapted for series-parallel control. Specification 719,873 [Group XXXVI] is referred to.
Patent GB-618099-A (GB)
Title: Improvements in or relating to controlling devices for gas-turbines
IPC: F02C7/22
Filed: 1946-10-18
Abstract: 618,099. Gas turbine plant. READ, J. R. Oct. 18, 1946, No. 31100. [Class 110 (iii)] The control means of a gas turbine plant includes a multi - position switch, Fig. 2, controlling the circuits of accessories for operations such as starting, relighting, cranking and stopping. If the plant comprises two turbine sets, the switch will have a separate set of contacts for each turbine set and contacts for operations on both turbine sets. Fig. 1 shows two turbine sets 10, 11 driving, through hydraulically controlled and overrunning clutches 13, 14, as described in Specification 612,652, [Group XXIV], and reduction gearing 15, a single airscrew 12. Fuel, at low pressure, is delivered by an electrically-driven pump D to an engine-driven fuel pump 18. Fuel from pump 18 passes, for load, through a manually-controlled valve 30, an electricallycontrolled valve 32 and a stop valve 35. Fuel, for idling, passes through a valve 31 and stop valve 35. For starting, low-pressure fuel passes through electrically-operated valve 27. Pressure in the pipe-line 17 closes contacts 20 of an indicator 56, Fig. 2. The switch is set by rotation to bring the pointer 51 to the position for the desired operation and a push-in movement closes the contacts of the associated circuits. A delay device returns the switch after a time interval sufficient for the operation to be performed. In the start position for one turbine set, contacts b1, c1 (not shown) are closed. Contact c1 controls the starting motor C, Fig. 1. Contact bl energizes the devices B1, B2, B3, B4, which, respectively, bring the torch-igniter 23 into operation, close the fuel valve 32, open the stop valve 35 and close the clutch 13. In the relight position, only contact b1 is closed and in the cranking position only contact c1. In the stop position a contact a1 is closed which energizes the device A1 for closing the stop valve 35 and the device A2 for opening the clutch 13. In central positions for starting and stopping both turbine sets, the switch closes the appropriate circuits for both sets. Indicators 57, 58 come into action when the turbines are under load. The manual control may be interconnected with a constant speed control on the airscrew to provide a speed datum corresponding with each position of the control. The switch may also control the circuit of a solenoid of an automatic brake to prevent wind-milling of an engine that is not running.
Patent GB-275063-A (GB)
Title: Improvements in closing devices for jars and other receptacles
IPC: B67B3/10
Filed: 1926-12-08
Abstract: 275,063. Jovignot, C. Dec. 8, 1926. Capsules and the like, applying. - A metallic cap for closing glass &c. receptacles and having a lateral depending portion, the depending portion comprising an inwardly-extending bead b, Fig. 3, and a tapered portion d the free edge of which is strengthened by being slightly overturned towards the interior, the overturning preventing an increase in the diameter of the free edge during the pressing operation and thereby increasing the displacement of the bead towards the receptacle, is applied by the apparatus shown in Fig. 4. A lever 10 acting through a cam 12 raises a piston 13 carrying a resiliently-mounted inner piston 16 on which the receptacle table 5 is supported. The piston 13 also carries a sleeve 6 comprising resilient segments formed with grooves 8, Fig. 3, which engage an inturned portion d of the cap flange. When the table 5 has been raised to press the cap against an abutment plate 3, the sleeve 6 passes up the sides of the receptacle, the groove 8 doubles over the portion d, and then presses the bead against the receptacle side. The segments of the sleeve 6 whilst sufficiently resilient to conform to the shape of the receptacles, prevent the edges of the cap from increasing in diameter. A jar having a narrow neck may be capped by bringing it downwards between laterally movable semicircular segments actuated by bell-crank levers controlled by rods which effect the movement of the receptacle.