baber/WOPTO huggingface dataset:
Patent GB-387715-A (GB)
Title: Improvements in or relating to portable high frequency signalling apparatus
IPC: H01Q9/16
Filed: 1931-08-12
Abstract: 387,715. Wireless signalling. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. Aug. 12, 1931, No. 22794. Convention date, March 6. [Class 40 (v).] In a short-wave transmitter or receiver, the high-frequency valves and tuned circuits G are separated from the dipole aerial D by a flexible coupling-line E which is tuned to the working wavelength by being made of a length equal to the wave, or to a multiple thereof. The aerial is suspended from a pole H as shown. The invention is particularly applicable to portable sets intended for duplex working.
Patent GB-228056-A (GB)
Abstract: 228,056. Rogler, M. May 29, 1924. Crank-actuated pumps; disconnecting actuating- mechanism; crank-actuated pumps; suction reservoirs. - Apparatus for mixing and drawing off colours from a vessel comprises a stirrer mounted on a vertical axis, and a pump which becomes active after the stirrer has been operated for some time. In the form shown, the stirring-blades 10 are mounted on a tube 5 fitted with a helical blade 6 and rotated by bevel gear 13 from a handle 14. The tube 5 drives a shaft 23 fitted with a clutch sleeve 28 operated like a centrifugal governor and driving a crank disc 21 which operates the pump 16. The apparatus is clamped to the vessel and the tube 5 and pump stem 19 are adjustably mounted. In a modification, the clutch is dispensed with and a centrifugal pump is employed which is effective only when a certain speed of rotation has been effected.
Patent GB-708050-A (GB)
Title: Process for the manufacture of hydrazine sulfate
IPC: C01B21/16
Filed: 1948-08-30
Abstract: A mixture of hydrazine and water vapours is passed into a solution of dihydrazine sulphate, (N2H4)2,H2SO4, having a concentratio of 10-90 per cent., preferably 30 to 50 per cent., maintained at a temperature not permitting condensation of water vapour, sulphuric acid being added if necessary to maintain the pH between 3.5 and 5.5, the addition of further sulphuric acid yielding hydrazine sulphate which is less soluble than dihydrazine sulphate.  The hydrazine sulphate is precipitated and filtered. The filtrate may be recycled to the absorbent solution.
Patent GB-434904-A (GB)
Title: A new or improved word-forming appliance
IPC: G09B17/00
Filed: 1934-11-13
Abstract: 434,904. Word - building appliances. LAMMING, S. E., 25, Fairfield Crescent, Edgware, Middlesex. Nov. 13, 1934, No. 22834. [Class 146 (ii)] A word-forming appliance of the kind comprising a series of relatively movable alphabetbearing columns or strips mounted in a casing or frame having an inspection opening is provided with a friction device for each column to prevent accidental displacement thereof. As shown, the columns A are hexagonal in cross-section, but they may be triangular or rectangular, each face bearing letters of the alphabet, and the columns can be moved longitudinally and rotated. The friction device for each column comprises a spring D<2> secured to each column or in the recess or opening b of the frame B in which the column moves. In a modification, rectangular strips bearing letters of the alphabet on one face only are mounted side by side in a casing, and the rear side of each strip is provided with either a short or a long spring which bears on the bottom of the casing ; in the case where a long spring is provided, this bears in a groove in the bottom of the casing, and may pass through the corresponding strip to act as a manipulating knob therefor.
Patent GB-626198-A (GB)
Title: Improvements in liquid-break electrical circuit breakers
IPC: H01H33/02
Filed: 1947-08-18
Abstract: 626,198. Tanks. BRITISH THOMSON. HOUSTON CO., Ltd., GIMSON, C. F., and VEALE, R. H. Aug. 18, 1947, No. 22888. [Class 69 (i)] [Also in Group XXXVII] The cylindrical tank 1 of an electric circuit breaker has a length which is short in relation to the diameter and is arranged with its axis horizontal. It has domed shaped ends 2, bosses 4 to support bushing insulators and an extension chamber 5 to house the circuit breaker operating mechanism. The chamber 5 is similar in shape to the main tank and serves to reinforce it at a point where weakening is introduced by the openings in the tank for the bushings. In the Figure, dotted lines 2a, 5a indicate the curvature of the domed ends of the cylinders.
Patent GB-494442-A (GB)
Title: Improvements in hand electric battery lamps or torches
IPC: F21L4/00
Filed: 1937-08-11
Abstract: 494,442. Electric battery lamps. JACKSON, L. MELLERSH-. (Hyman, H.) Aug. 11, 1937, No. 22095. [Classes 39 (ii), 75 (ii), and 75 (iv)] An electric-battery lamp comprises a cap 5 provided with the usual front glass 9 and also with side windows fitted with coloured glass 11, the windows being arranged above a reflector 15 fixed below a bulb 16 so that they always receive a portion of the ray of light from the reflector. The glass 11 may be in the form of a complete ring, or built up from arcuate pieces, for example, from semicircular pieces coloured red and green. The illumination of the windows may be increased by means of a truncated conical reflector 13, by forming the inner surface of the windows with corrugations or other irregularities, or by forming a circular glass 17, Fig. 4, with V- shaped annular grooves 18.
Patent GB-416536-A (GB)
Title: Improvements in or relating to machines for conveying mortar concrete or the like under pressure
IPC: F04B15/02
Filed: 1933-08-17
Abstract: 416,536. Pumps for concrete and the like; cleaning pipes. HANDL, E., 34, Euterpestraat, Amsterdam. Aug. 17, 1933, No. 22997. Convention date, Aug. 18, 1932. [Classes 99 (ii) and 102 (i).] In a concrete &c. pump members are provided in the discharge conduit to produce a permanent section restriction and prevent return flow of the concrete during the suction stroke. Members 19 having double conical surfaces may be mounted in the conduit, and may be used in addition or as an alternative to a rod 10 having an enlargement 9 which is moved to a larger portion of the pipe during the discharge stroke. In another alternative, Fig. 6, rubber or metal tooth shaped members 35 may be employed. The pump may be of the kind in which concrete passes from a container 1 into the cylinder 4 through plunger controlled ports 6. A plunger cleaning device 21 may be provided. The discharge pipe may be cleared by forcing a rubber plug 30 through it under water pressure. The plug is introduced into a junction piece 27 which may be isolated by valve plates 28, 29, and may be made in halves to facilitate insertion of the plug.
Patent GB-587913-A (GB)
Title: Improvements in pistons and piston rings for internal combustion engines
IPC: F16J9/20
Filed: 1945-10-12
Abstract: 587,913. Piston-rings. JAMESON, J. L. Oct. 12, 1944, No. 23002. [Class 122 (i)] Piston and piston-ring assembly, for use in internal-combustion engines, are of the shapes shown in Figs. 2 and 3. Piston-ring 5 is metallic, with one or more annular recesses corresponding to the stepped shape of the piston 1 and reduced in diameter at 6 to afford efficient lubrication.
Patent GB-185121-A (GB)
Title: Improved stop and direction indicator and tail light attachment for road vehicles
IPC: B60Q1/34
Filed: 1922-08-24
Abstract: 185,121. Read, E., (Assignee of Read, E., Stevens, B. T., and Moloney, C. T.). Aug. 24, 1921, [Convention date]. Order apparatus.-A stop and direction indicator associated with the rear light comprises a semaphore arm moved selectively by the driver by electrical means, and released automatically after a predetermined interval. The semaphore arm 31, Fig. 2, is carried by a spider 32 on a shaft 33, and moves between two glazed fronts 24, 25, being illuminated at night by a lamp 28 controlled by a switch 29, which also illuminates a red lens 26 forming the rear light, and the number plate 22. A bell 30 may be rung at each actuation of the semaphore. In the arrangement shown in Fig. 8, the semaphore is under the control of three switches 35, 36, 37 corresponding to turning to the right, stopping, and turning to the left. A gear 55 on the semaphore shaft 33, provided with a spring detent 61 formed by the armature of a normally energized relay 51, meshes with a rack-bar 56 integral with a sliding rod 65 controlled by a solenoid 48 and a spring 50. A lever 69 is connected by pin-and-slot means to the rod 65, to a rod 72 controlled by a a solenoid 47, and to a spring-pressed piston 75 movable in a dash-pot cylinder 77 provided with an adjustable valve 84. On closing the switch 36 for example, a circuit is completed at the contact springs 40, 41 through the bell 30 and the solenoids 47, 48 in parallel, causing sliding of the rods 65, 72, and 75. The circuit of the relay 51 is broken at the sliding contacts 78, 79 by the movement of the piston 75, but a new holding circuit is established through the contact 39<x> and spring 41. The movement of the rods 65 is arrested at the proper point by the engagement of a toe-piece 66 with a check on the armature 68 of a relay 53, which becomes energized over the contact springs 41, 42. Upon release of the switch 36, the relay 51 de-energizes and the gear 55 and the semaphore are locked in position, until the gradual retraction of the piston 75 again makes the contact 78, 79, whereupon the semaphore is released and returns to the neutral position. The switch 37 limits the movement of the rod 65 by means of a relay 52, while in the case of the switch 35, the rod is arrested by a fixed stop, so that a third contact spring is unnecessary.
Patent GB-356414-A (GB)
Title: Delivery apparatus for printing machines
IPC: B65H29/08
Filed: 1930-07-30
Abstract: 356,414. Sheet-delivery apparatus. GRIESSER, J., 215, Rue Boileau, Lyons, France. July 30, 1930, No. 23037. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 31, 1930.] [Class 100 (i).] Sheet - delivery apparatus for printing-machines comprises a travelling platform which receives the sheets from delivery grippers and transfers them to means for depositing them on a pile-table. Oscillating arms a take the sheet s from the impression cylinder b, and a flexible platform t carried by endless chains f passing over pulleys d, h, i, k moves into position beneath the sheet to receive it from the grippers. From the platform t the sheet passes to a device for depositing it on a pile-table consisting of a band o carried by a fi.xed-roller l and a reciprocated roller m on either of which it can be wound up. Initially, the two rollers l, m are adjacent to one another with the band o wound on the roller as shown. As the sheet is passed to the band o from the platform t the roller m moves away from the roller l to unwind the band o and support the sheet. On the reverse movement of the roller m the band o is wound thereon and the sheet drops on the piletable. When the roller m is again adjacent to the roller l, the band is unwound therefrom on to the roller ready for the succeeding cycle of operations.
Patent GB-1337079-A (GB)
Title: Device for measuring the distance between two underwater  elements of trawl gear especially the vertical distance
IPC: A01K75/00
Filed: 1971-04-19
Abstract: 1337079 Pressure gauges MORSKI INSTYTUT RYBACKI 19 April 1971 [18 Feb 1970] 23139/71 Heading G1L In a device for measuring the vertical distance between two underwater elements of a trawl gear, such as the mouth of a net 31, an elastic vessel 4, connected to an elastic membrane 12 by a conduit 5, is attached to the bottom line 34 of the net 31 and an instrument 32 is attached to the headline 33 and the arrangement is such that pressure on the vessel 4, filled with a gas such as air, is transmitted to the membrane 12 which in turn transmits such pressure to a second incompressible liquid such as silicon oil, in an anti-chamber 11 and if the pressure is lower than the pressure internally of an encased bellows 1 caused by the surrounding environment, the bellows 1 alters in length and, through a follower 18, moves a pen system 3 over a driven tape system 21-23. If the pressure exerted by the liquid 11  on an encased bellows 15 exceeds that of the surrounding environment the bellows 15 alters in length to move a ported piston to actuate a cutoff valve 2, to shut off the pressure supplied to the external of the bellows 1 through a conduit 10. The driven tape system 21-23 is automatically switched on at approximately a depth of 5 metres by an hydrostatic switch.
Patent GB-239713-A (GB)
Title: Process and device for spinning and curling or twisting hair and fibres
IPC: D07B5/06
Filed: 1924-10-01
Abstract: 239,713. Notenboom, A. W., Motenbcom, P., and Naamlooze Vennootschap Holland-Afrika Cie. Oct. 1, 1924. Fibres, crimping and curling.-The material, hair or fibres is fed to a rotatable inclined pin 13 and passes through a hollow shaft 9 and over a disc 8 and is .secured at 30 to a cylinder 3 mounted in bearings 4, 10 and rotated by a belt on a pulley 11. The pin 13 is rotated slower by a belt on a pulley 12. The disc 8 is drawn along the inside of the cylinder 3 by a rope 27 which winds around a drum on a shaft 36<a>, Fig. 5. The drum is rotated by ratchet mechanism operated by a cam 33 on the shaft 9. The shaft 36<a> is mounted on a lever 38, 40 carrying an adjustable balance weight 41, which, in the event of excessive tension of the twisted material, lifts the winding drum and so temporarily renders the ratchets inoperative. When the disc 8 reaches the end of the cylinder, a cam operated by the rope 27 operates belt-shifting mechanism and so stops the machine. The twisted material is then drawn out at 30, the disc 8 travels back along the cylinder 3 and the twisting of fresh material is commenced. The twisted material may be cut off or left hanging.
Patent GB-334676-A (GB)
Title: Improvements in method of producing a gel
IPC: C01B33/46
Filed: 1929-07-27
Abstract: 334,676. Triggs, W. W., (General Zeolite Co.). July 27, 1929. Right to Patent relinquished. Precipitating, special methods for.-Gels, especially gel zeolites, are produced by the interaction of concentrated reacting solutions, such as sodium silicate and aluminium sulphate, by contacting proportionate amounts of two such solutions in a coalescing flow, effecting mixing and reaction during the flow and in a mixing chamber, and collecting the mixture in a suitable tank where the gel is allowed to develop, the process being carried out at ordinary temperatures. For example, the solutions are placed in separate tanks, each having a pipe at the bottom leading to a mixing chamber, the flow being controlled by suitable cocks. One of the pipes preferably discharges vertically into the mixing chamber, the other has a horizontal extension at the lower end which discharges directly into the path of the liquid from the first pipe. A draw-off pipe leads from the base of the mixing chamber to the setting tank.
Patent GB-920142-A (GB)
Title: Dithiophosphonic acid esters
IPC: C07F9/6533
Filed: 1961-06-27
Abstract: Compounds of the general formula <FORM:0920142/IV(a)/1> where R1 and R2 represent an alkyl group having up to 4 carbon atoms; R3 is methyl, ethyl or propyl; R4 and R5 are hydrogen or an alkyl group with up to 4 carbon atoms; or the group <FORM:0920142/IV(a)/2> may be a 6 membered heterocyclic ring, are prepared by reacting together an alkyl-thionophosphonic acid-O-alkyl ester-thiol acid salt with an a -halogeno-alkane-carboxylic acid amide.  The reaction is preferably carried out in an inert organic solvent, or water, and at slightly elevated temperature.  The compounds are useful insecticides either alone or with a solid or liquid carrier or diluent.  Numerous examples of compounds are given. Specification 663,270 is referred to.
Patent GB-1249474-A (GB)
Title: Drive system
Inventor: LAWRENCE EDWARD
IPC: F16H35/00
Filed: 1968-05-16
Abstract: 1,249,474. Clutch control; variable-speed ratchet gear. ELECTRONIC AUTOSIZING METROLOGY Ltd. 16 May, 1969 [16 May, 1968], No. 23339/68. Headings F2D and F2L. An incremental drive system for a lead-screw 35 comprises an electric motor 12 driving an output shaft 32 through gears 13, an electromagnetically operated clutch 15, a clutch 20 which is disengaged by a solenoid 22 after a predetermined number of revolutions of a shaft 24 and a variable speed ratchet gear 26, 31 which for each complete revolution of the shaft 24 rotates the output shaft 32 less than a complete revolution. The output shaft 32 is connected to the lead-screw 35 through an electromagnetically operated clutch 33 and bevel gear 34. As shown, two parallel drive systems 15, 20, 24, 26, 31; 14, 18, 23, 25, 30 are provided between the electric motor 12 and output shaft 32 to provide fine and coarse feeds to the leadscrew 35 by selective energization of the clutches 14, 15. The clutch 18 is disengaged after two revolutions of the shaft 23 by a microswitch 53 actuated by a cam 52 driven from the shaft 23. The clutch 20 is disengaged after each revolution. Ratchet gearing.-Each ratchet gear comprises an eccentric 26 rotatable in a bore 36 of the lever 37 which is pivoted at 38 to an arm 41 connected to the outer race 31 of a ratchet clutch. The pivot 38 is connected by an arm 40 to a normally fixed pivot 42 carried by an arm 43. The position of the arm 43 and pivot 42 may be adjusted by rotating the arm 43 about a pivot 46 to vary the speed ratio of the ratchet gear.
Patent GB-1012429-A (GB)
Title: Improvements in carburetting devices for internal combustion engines
IPC: F02M17/09
Filed: 1964-06-05
Abstract: 1,012,429. Spray carburetters. SOC. INDUSTRIELLE DE BREVETS ET D'ETUDES. June 5, 1964 [June 8, 1963], No. 23356/64. Heading F1B. In a carburetter having a main throttle valve 4 are automatically operated air intake valve 6, and a fuel pump 1 feeding an injector 31 downstream of the valve 4, a fuel metering valve 8 is controlled by the valve 6 and a power control valve 20 upstream of the valve 8 maintains the pressure drop across the orifice 11 and injector orifice 2 proportional to that across the valve 6. The pump 1 delivers into a chamber 18 from which fuel is by-passed back to the constant level chamber 21 through valve 20 which is connected to a diaphragm 24 subject on the lower side to atmospheric pressure through pipe 22 and on the upper side through orifice 26 to the pressure in chamber 9 between the valves 6, 4. The pressure below orifice 2 is maintained atmospheric by air admitted through orifice 32. The flap valve 6 may be replaced by a suction actuated piston or poppet valve.
Patent GB-362474-A (GB)
Title: Improvements relating to apparatus for delivering measured quantities of liquid by volume from bottles or similar vessels
IPC: G01F11/26
Filed: 1930-08-05
Abstract: 362,474. Delivering measured quantities of liquid. PAYNE, L. T. and CONRADE, H. G., 385, Camden Street, Birmingham. Aug. 5, 1930, No. 23391. [Class 106 (v).] Tilting-bottle apparatus of the kind described in Specification 7019/03, [Class 106, Registering &c.], in which a siphon f is arranged within the measuring chamber is provided with a partition plate i forming a compartment j which must be filled before liquid can flow into the measuring chamber, thus minimizing inaccuracies due to variations in the quantity of liquid in the receptacle. The air pipe e passing through the cork b into the bottle terminates in the closed end of the siphon and is provided with a notch at h to allow the air pipe to drain into the measuring chamber. When the bottle is tilted to bring the delivery pipe g vertical, liquid fills the compartment j and flows over the upper edge of the plate i into the measuring chamber, displaced air escaping through a vent tube k and also passing through the air pipe e into the bottle until the liquid reaches the top of the siphon and blocks the air pipe, when discharge through the pipe g commences. Unless the bottle is returned to its normal position the chamber will be recharged and the cycle of operations repeated. The vent tube k is contained entirely within the body part a its inner end being protected by a baffle m which prevents liquid from splashing into the vent. A metal ring c attached to the body encloses the cork at one end. The end of the air pipe within the bottle is restricted at l.
Patent GB-872597-A (GB)
Title: Improvements in electrical tracer control devices for use with machine tools
Inventor: LASERMANN FRANZ
Filed: 1957-07-24
Abstract: 872,597. Tracers for copying-machines. HANSENS, A., [trading as DROOP & REIN]. July 24, 1957, No. 23402/57. Class 38 (6). Apparatus for controlling a copying-machine to make it follow the contour of a template comprises a tracer stylus with two sets of switches, the first set comprising four equispaced sets of contacts selectively operated on slight deflections of the stylus in accordance with the direction of deflection to preselect energization of magnetic clutches coupled to the driving motors, and the second set comprising three longitudinal sets of contacts selectively operated in accordance with the extent of the stylus deflection to energize the preselected clutches. The switches may be used to produce a preliminary rough cut of the workpiece. A rod mounted in ball bearings is inserted partially into the rear end of the tracer and the contacts referred to above are adjacent to the upper bearing, a circular spring and adjusting device being provided to maintain the tracer in a central axial position when not touching the template. In Fig. 1 the tracer consists of a stylus 41 supporting a rod 45 in ball joints 6 and 7, the end of the rod engaging a bearing 8. Surrounding the rod 45 are four symmetrically located bars 9, pivoted at 10, each carrying a moving contact 11 co-operating with a fixed contact 12 mounted on a ring attached to the housing 42. The bars are inwardly biased by a circular spring 16 which also tends to maintain the stylus and rods coaxial. When the stylus 41 is deflected, a tubular extension 14 presses against a boss 15 on one of the bars 9 to close the appropriate contacts 11, 12. On further deflection of the stylus 41, bosses 126 on the piece 14 cause the rod 45 to displace the end bearing 8 against a spiral spring 25 and deflect a switch arm 24 to close the second set of contacts 23, 21, 22 in this order in accordance with the extent of the deflection of the stylus. In Fig. 2 the four sets of contacts 11, 12 are designated as I, II, III and IV, and selectively energize relays R1, R2, R3 and R4 which prepare magnetic clutches 117, 18, 19 and 20 for energization by contacts 23, 21 and 22. The clutches 117, 18, 19, 20 produce forward, reverse, right or left movement of the stylus respectively. Contacts 21-23 are connected to the (D.C.) power supply via a reversing switch (not shown) operated by a time relay so that any burning or pitting is shared equally between the two contact elements. In a modification (Figs. 3 and 4, not shown) the tracer and its contacts are used to produce a preliminary rough copy of the template. Each switch 11, 12 controls the energization of four relays, each of which has three normally-open contacts and one normally closed contact, the contacts being interconnected so that when a switch 11, 12 is closed by deflection of the stylus the direction of movement is changed by 90 or 180 degrees to prevent the work being damaged by too deep cutting.