baber/WOPTO huggingface dataset:
Patent GB-699124-A (GB)
Title: Improvements in or relating to centrifugally-actuated apparatus
IPC: G01P3/22
Filed: 1951-05-08
Abstract: 699,124. Centrifugal switches. BENDIX AVIATION CORPORATION. May 8, 1951 [May 26, 1950 ; May 26, 1950], No. 10818/51. Class 38 (v) A centrifugal switch comprises a leaf spring 41 secured intermediate its ends to a shaft 16 and having its arms extending at an acute angle to the axis, weights 43 being mounted on curled ends of the arms. A shaft 14 drives a part 18 of shaft 16 having a part 17 operating a speedometer (not shown). The spring 41 is secured to shaft 16 at 42 for rotation therewith. A rigid member 44 mounted on the.shaped ends of a sleeve 39 has arms inclined to the shaft and engaging between flanges on weights 43, so that member 44 and sleeve 39 are also rotated. Sleeve 39 has a cam portion 40 co-operable with legs 36, 37 of a pivoted, U-shaped member 35, the leg 37 being cranked at 38 so as normally to co-operate with cam 40 which is urged to the left, Fig. 2, by a spring 47. As the speed of shaft 16 increases, weights 43 flex the spring 41 which pushes member 44 together with sleeve 39 axially to the right, Fig. 2, until cam 40 comes opposite leg 36 which is thus forced to the left, Fig. 4. This carries over-centre a spring 33, connected between leg 36 and the cross-piece of a U-shaped contact 29 pivoted at 34, thereby closing contacts 24, 29. When the speed decreases, sleeve 39 moves back to its normal position and cam 40 engages leg 37 to re-open the contacts.
Patent GB-289053-A (GB)
Title: Improved manufacture of dry colour binding agents soluble in cold water
IPC: C08B30/12
Filed: 1928-04-12
Abstract: 289,053. Henkel et Cie Ges. April 21, 1927, [Convention date]. Starch.-Colour-binding agents, soluble in cold water, are obtained by slightly disintegrating those starch preparations which swell in cold water and are made by treating starch in the cold with sodium lye, the chloride of calcium, zinc and magnesium, or ammonium thiocyanate, or by heating with water. The disintegrating agents may be hydrogen peroxide, per-salts, hypochlorites, chloro-amines &c., but all processes for making soluble starch may be used for the partial disintegration of the cold water soluble starch. The disintegration may also be effected simultaneously with the formation of the cold watersoluble starch, or suitably disintegrated starch treated by one of the above specified processes to produce cold water soluble starch. When liquid disintegrating agents are used, alcohol is employed for dlution to prevent local paste formation. In an example, alkali- or calcium chloride-starch is agitated with 70 per cent alcohol and hydrogen peroxide diluted with alcohol is added. After milling in edge mills, the preparation is dried and ground. Disintegration may be regulated by choice of agent, concentration, temperature, or by interruption by reduction of temperature or addition of suitable chemicals. The Specification as open to inspection under Sect. 91 (3) (a) described also the formation of the cold water-soluble starch by any method. This subject-matter does not appear in the Specification as accepted.
Patent GB-471944-A (GB)
Title: Improvements in or relating to landing gear for aircraft
IPC: B64C25/00
Filed: 1936-04-15
Abstract: 471,944. Aircraft landing - gear. DELANNE, M. H. April 15, 1936, No. 10901. Convention date, June 29, 1935. [Class 4] Landing-gear for an aircraft comprises a single front wheel c disposed in the plane of symmetry of the aircraft and in front of the centre of gravity G thereof, the wheel being carried by a stirrup retractable into the fuselage by a simple pivotal action, and has members disposed laterally at the rear of the aircraft as far as possible from the centre of gravity. As shown, the rear members comprise wheels D<1>, D<2> carried by a tailplane. The latter may be retractable into fixed fins. Skids or like devices may substitute the wheels. Specification 258,917, [Class 4], is referred to.
Patent GB-331857-A (GB)
Title: An improved clinometer for aircraft
IPC: G01C9/12
Filed: 1929-04-09
Abstract: 331,857. Hardinge, F. R. April 9, 1929. Clinometers. - A clinometer for aircraft &c. comprises a pendulum connected to an indicator and a fixed circular magnet or arrangement of magnets so disposed that a uniform field acts on an armature fixed in relation to the pendulum in order to prevent oscillations of the pendulum. In the form shown the pendulum a is secured to a spindle b mounted in bearings in a casing d and connected by gearing i, j to a spindle k carrying a pointer l. The circular magnet e secured in the casing acts on an armature f comprising a steel ring carried by an aluminium &c. disc g secured to the spindle b, the ring being on the face of the disc remote from the magnet. Adjustable screws &c. h passing through the armature and disc and making wiping contact with the magnet enable the pull on the armature to be varied. In another form the pointer is mounted directly on the spindle b. To indicate the fore- and aft and lateral tilt of an aircraft two pendulum devices are used with the pendulum spindles at right-angles to each other. In one instrument the pendulum is geared to the pointer and in the other it operates it directly so that the two pointers rotate about parallel axes and the dials can be disposed one below the other in the same face of a casing common to both instruments.
Patent GB-811034-A (GB)
Title: Improvements in or relating to oil burners more particularly for oil heating stoves
Inventor: MORGAN HENRY GEORGE
IPC: F24C5/12
Filed: 1956-04-10
Abstract: 811,034. Oil burners. FALK, STADELMANN & CO. Ltd. April 10, 1957 [April 10, 1956], No. 10924/56. Class 75(1) In an oil burner having a spigot 18 fitting into a socket 12 and fastening means operated by relative rotation of the spigot and socket, a locking device for preventing relative rotation of the spigot and socket is provided and comprises a resiliently urged plunger 31 disposed radially with respect to the axes of the spigot and socket. The spigot 18 is formed at the lower end of a basket 14 containing a wick and the socket 12 is formed at the top of an oil reservoir 10. The socket is of inverted U-shape in radial section having a plane annular top face 21 to which are attached metal tabs 23, the free portions 23b of the tabs being disposed horizontally a short distance above the top face. The basket is fastened to the oil reservoir by engaging the spigot 18 in the socket 12 so that holes 24 in the basket engage over the tabs 23, and then turning the basket through a small angle. The plunger 31 is slidably mounted in a cylinder 26 which extends through a hole in the outer wall of the socket 12, abuts the inner wall thereof and is fastened to both walls. The plunger projects through a hole in the inner wall of the socket 12 to engage in a hole 37 in the spigot 18. An enlarged diameter part of the plunger abuts the turned in inner edge of the cylinder 26 to limit the outward movement of the plunger. A stem secured to the plunger extends through the outer end of the cylinder and has a flat circular head 30 which is gripped by the fingers when the plunger is being retracted. In a modified construction the spigot is screw threaded into the socket and the locking plunger comprises a stud provided on a leaf spring. The plunger may be disposed on the basket and arranged to engage a hole in the reservoir.
Patent GB-417868-A (GB)
Title: Improvements in oil lamps
IPC: F21V37/00
Filed: 1933-04-13
Abstract: 417,868. Venting oil reservoirs. SHERWOOD, S. H., 44, Granville Street, Birming- ham. April 13, 1933, No. 11008. [Class 75 (i).] In an oil lamp, particularly for use in a brooder or incubator, the socket d<2>, in which the shank e<2> of the wick burner detachably fits, forms part of a cylindrical bell d rigidly and permanently attached at its lower open end to the top wall a<2> of the oil container a, and an all. round space d<5> is provided between the socket and bell, through the side walls of which a horizontal series, such as a ring, of small holes d<4>, is provided to communicate between the space d<5> and the exterior of the bell d, which is otherwise closed at its upper end. The holes d<4> are near the top of the bell within a bevelled or grooved portion, below which is an annular bead. The shank d<2> is closed except for the wick tube or tubes.
Patent GB-566837-A (GB)
Title: Improvements relating to the manufacture of moulded articles from moulding powders
IPC: B44C3/04
Filed: 1943-07-07
Abstract: 566,837. Moulding buttons. HORNFLOWA, Ltd., and WINTER; H. A. M. July 7, 1943, No. 11047. [Class 43] [Also in Group V] Process: (a) (Fig. 1). Light brown, transparent powder F<1> is shaken from a sieve E', through a stencil D<1>, and forms heaps L on the relief-patterned mould base C. (b) Darker powder is shaken through another sieve and another stencil to form other heaps on the mould base (as at M, Fig. 5). (c) Body powder G, Fig. 5, of a different colour is shaken in through a sieve to complete the filling of the mould. (d) A plunger M, Fig. 5, having projections R corresponding to the heaps L, M, descends to form cavities in the body powder, and rises (Fig. 5 position). The cavities need not be of the same height as the heaps L, M. (e) More darker powder is shaken, through the sieve and stencil used in step (b), into the cavities corresponding to the heaps M. (f) More light-brown transparent powder is shaken, through the sieve E<1> and stencil D<1>, into the cavities corresponding to the heaps L. (g) The powders are compressed into tablet form by a plunger, which may be heated. (h) The tablet is reversed and placed in another mould A<2>, Fig. 11, the graining recesses formed by the plate C are filled with differently-coloured powder F<2>, a top B<2> is applied to the mould and a plunger K<2> rises, the tablet being thus moulded under heat and pressure into its final button form ; or it may be pressed a third time, in a finishing mould. The holes or other means of attachment to a garment are made in a separate operation. An article having a lightcoloured centre such as is found in an object cut from a horn tip, the colour increasing in intensity from the centre towards the circumference, may be made by a process similar to that described above, the first deposited coloured powder being in the form of a ring T, Fig. 14, and the second - deposited white powder forming a heap W within the ring. There may be many moulds, which may be stationary, stencils and screens carrying mould-' ing powder moving in steps over the moulds. The moulding powder may be a mixture of powdered horn and hooves of animals and ureaformaldehyde synthetic resin.
Patent GB-239568-A (GB)
Title: Method of making drilling jars for use in drilling wells and the like
IPC: E21B4/08
Filed: 1924-05-05
Abstract: 239,568. Arbon, P. May 5, 1924. Bore-hole apparatus.-Jars for use with well &c. drilling apparatus, and comprising a head section insertible within a socket section, are made by placing within the socket section in. sert means of a length substantially equal to the stroke of the jar and then shaping the heated portion of one of the sections so as to enter space unoccupied by the insert means and the other section. In Figs. 1 and 2, both sections are substantially completed except for the formation of the head of the head section, an insert K is placed in the slotted portion of the socket section, and the latter is inserted in a cylinder P; the reduced end ) of the head section is then 'heated and is forced by hydraulic pressure against the insert K so as to become upset and form a T-head J. In Fig. 5, enlargements I are provided at the end of the socket section, leaving an enlarged opening Q; the enlargements L are heated, the head section introduced into the socket section, inserts N are positioned, and the enlargements L are closed around the head seotion by hammering.
Patent GB-872879-A (GB)
Title: Electrolytic copper-plating baths
IPC: C25D3/38
Filed: 1960-03-30
Abstract: 872,879. Copper-plating baths. DEHYDAG DEUTSCHE HYDRIERWERKE G.m.b.H. March 30, 1960 [May 6, 1959], No. 11122/60. Class 41. Copper-plating baths include as levelling- agent (1) an alkyl or aryl thiourea containing a carboxy group linked to N, together with (2) a lustring agent. Compounds (1) include N- phenyl-N<1>-carboxymethyl thiourea, and the corresponding N - butyl - N<1> - 4 - carboxyphenyl derivative. Lustring agents (2) preferred, contain one or more C atoms linked solely to hetero atoms, a short alkyl group linked to an S atom, and a sulphonic group, e.g. N,N-pentamethylene dithiocarbamic acid-n-propyl-ester sodium sulphonate. The ductility of the copper coating may be improved by adding amino compounds free of carboxy groups, e.g. 1 : 3-propylene diamine, or their derivatives containing sulphonic acid or sulphuric ester groups, or halogen compounds of tertiary amines, e.g. 2 - diethylamino - 3 - chloro - propanol-2.
Patent GB-440011-A (GB)
Title: Improvements in and relating to the manufacture of refractory bricks, slabs and the like
IPC: C04B35/44
Filed: 1935-04-10
Abstract: A process for manufacturing refractory dolomite bricks, slabs &c. consists in moulding under high pressure and without the use of a binder, a finely divided mixture of fritted dolomite and an oxide of iron, chromium or aluminium, and burning the moulded mixture.  The amount of oxide in the mixture is generally from ,5 to 5 per cent. The ingredients are in a state of subdivision fine enough to pass a sieve having from 6,000 to 20,000 meshes per sq. cm.  The moulding pressure is from 300 to 1000 or more kgs. per sq. cm., and the burning temperature is suitably from 1350 to 1500 DEG  C.  A certain amount of the finished product in a granular state may be added to the finely divided mixture before the pressing step, e.g. 70-80 parts of granular material to 30-20 parts of powder.
Patent GB-600939-A (GB)
Title: Method of and apparatus for duplexing for transmission systems
IPC: H04L5/14
Filed: 1945-05-02
Abstract: 600,939. Duplex telegraphy. BAYARD, H. M., and ROQUET, R. J. C. May 2, 1945, No. 11164. Convention date, Oct. 11, 1943. [Class 40 (iii)] [Also in Group XXXVI] For adjusting an artificial line a to simulate a submarine cable L or the like in duplex telegraphy, the lines are connected as adjacent arms of a testing bridge T, all the parts used for testing being substitutable for the working parts. One diagonal of the bridge T comprises a signal-emitter S while the other comprises the input terminals of a filter F which feeds a detector E through an amplifier P and damping circuit m. The signal emitter may comprise contacts operated by cams or relays for producing, with an adj ustable recurrence frequency, pulses of adjustable duration. High-pass, lowpass, band-pass and band-elimination filters can be switched in alternatively at F, and the cut-off frequencies are adjustable. The unbalance voltage after being filtered at F passes through a linear amplifier P to a detector E, means (such as a shunt resistance or mechanical damping) being provided at m for making the indication aperiodic. The detector E may be a recording galvanometer or a photographic, magnetic or other recorder, or a cathode-ray oscillograph with a logarithmic, exponential or other time base which is triggered by the signalemitter. The location and character of any disparity between the artificial and working lines are inferred from the indications of the detector. Specification 208,515, [Class 40 (iii)], is referred to.
Patent GB-117324-A (GB)
Title: Safety Folding Chair for Cleaning Windows.
Inventor: SLATER HENRY
IPC: A47L3/02
Filed: 1917-08-03
Abstract: 117,324. Slater, H. Aug. 3, 1917. Staging, window.-A safety chair for use in cleaning windows comprises a seat H, supported by a board G on the sill and secured by an angle-plate B and thumb-screw to the inner side of the bottom rail of the window frame, and a back K hinged to the seat and supported by stays C which engage eyes on the back K and on the rail J.
Patent GB-290808-A (GB)
Title: Improvements in, or relating to, electric starting apparatus for internal combustion engines
IPC: F02N11/04
Filed: 1927-04-27
Abstract: 290,808. Walker, C. B., and Mitchell, R. J. April 27, 1927. Starting; turning-gear.-In order to relieve the load when starting an engine normally coupled to a compressor or other load, an arbor A having an external screw-thread is coupled to an electric motor-generator or to the engine, and a sleeve B screwing on the arbor is coupled to the engine or motor-generator, a driving member being loosely mounted on the sleeve and the arbor being coupled and uncoupled by the endwise movement of the sleeve in relation to the arbor. As shown in Fig. 1, the arbor A is coupled permanently to a mptor-generator (not shown) and the sleeve B carries a pulley b permanently coupled to the engine. A pulley D loose on the arbor is coupled to a compressor or other load and has a friction face d adapted to engage the face c of a collar C on the arbor. Ball thrust bearings F, G are provided. The sleeve brings the faces c,. d into engagement when the engine is running normally, but separates them when the engine is being started by the motorgenerator. In a modification, the pulley D is replaced by a disc coupled to a collar on a load shaft. In another form, the pulley b is replaced by a disc coupled to the engine. In a further form, Fig. 7, the arbor H is connected permanently to the engine, and the sleeve B is integral with a disc B<2> with friction surfaces b<1>, b<2>. Pulleys J, L on the sleeve B are connected by belts to pulleys J<1>, L' on the shaft of a motor-generator K ; the pulley J is connected to the sleeve B by a free-wheel clutch and the pulley L may be connected to the sleeve by a free-wheel clutch working in the opposite direction, the friction surface b<2> then being unnecessary. A collar N loose on the sleeve B is secured to the load shaft S. Ball thrust bearings M, q are provided. At starting, the motor-generator K drives the engine through the pulleys J<1>, J and the sleeves B, the latter moving to the left to bring the friction surface b<1> into engagement with the pulley J. When the engine starts, the sleeve B moves to the right, bringing the friction surfaces b<2>, into engagement, so that the motor-generator is driven through the pulleys L, L' and the load shaft S is also driven. The Provisional Specification describes also a modification in which the screwed sleeve moves at starting into engagement with a small pinion by which the engine is driven; when the engine is running the sleeve moves into engagement with a larger pinion through which the starting motor is driven as a generator.
Patent GB-724472-A (GB)
Title: Method of mechanically producing false hair curls from synthetic filaments
IPC: A41G3/00
Filed: 1953-04-23
Abstract: 724,472. Curling yarns. FABRE, J. April 23, 1953, No. 11268/53. Class 120 (3). [Also in Groups XIV and XV] False hair curls are made by coiling a strand of rayon or like synthetic fibre round a core on which is stretched a tape coated on its outer surface with adhesive, the coiling being done by rotating the core while displacing the incoming strand parallel to the core. As shown, a core rod 2 of glass, metal or plastic is mounted between a headstock 3 and a tailstock 4, movable longitudinally of a bed 1, and is spun bv mechanism in a casing 6 which also spins a lead screw 7 co-operating with a nut 12 to traverse a carriage 11 on which is mounted a thread guide. An idle roll 9 of the thread guide is pressed towards the other idle roll 8 by a spring 10 to spread the filament of one or more strands running through the guide from a reel 13 to be wound in uniformly spaced turns round the core 2 on which a tape 15, having a coating of adhesive 16 on its outer surface, and threads 17 of synthetic plastic are stretched longitudinally. Softening, curl setting and drying treatments are performed at this stage and removal of the plastic threads facilitates stripping of the coil from the core or the coil may be slit by passing a cutting tool along a slot 18 in the core rod. In modifications a reciprocated strand guide may be used and the core rod may be oval in cross-section, solid, hollow or in sections and may be heated. The tape 15 may spiral round the core rod.
Patent GB-570558-A (GB)
Title: Improvements in means for sighting guns and orientating scientific instruments
IPC: F41G1/42
Filed: 1941-09-03
Abstract: 570,558. Sighting-devices. MACCURDY, J. T. Sept. 3, 1941, No. 11283. [Classes 92 (ii) and 119] , To facilitate quick aiming or pointing of a rifle, light machine gun, telescope, or other sighting instrument, a wire skeleton aiming tube is provided comprising at least four circular or polygonal rings 3 of equal size, spaced apart on a carrier bar 2 and mounted on the gun or instrument so that the nearest ring is some 8 to 12 inches in front of the observer's eye. As thus seen, the series of rings appears to converge ; and to facilitate the centering of the line of aim on the target, the end rings may support central apertures 4, 6, of which the front aperture 4 is larger than the rear aperture 6 so that both rings subtend the same visual angle and appear as one. Fig. 2 shows the sight mounted on a Lewis gun. For use on guns having separate sighting for line and elevation, the two sights comprise each a series of narrow diamonds 8, Fig. 6, with crossbars 12 at the near end and a single bar 11 at the remote end. The elevation sight is shown in Fig. 6. The sight for line is similar, but with the long diagonal vertical. For rifles, the skeleton tube may be mounted in rear of a small " deliberate-aiming foresight " of ring type.