baber/WOPTO huggingface dataset:
Patent GB-739211-A (GB)
Title: Improvements in methods and apparatus for finishing toothed metallic pieces, and in particular gears
IPC: C25F3/02
Filed: 1953-07-21
Abstract: 739,211. Electrolytic shaping. SOC. D'EXPLOITATION DES MATERIELS HISPANOSUIZA. July 21, 1953 [July 25, 1952; March 20, 1953; April 29, 1953], No. 20254/53. Class 41. In a method of finishing toothed metallic pieces, such as gearwheels, the teeth are subjected to anodic treatment in an electrolytic bath, in such a manner that the action of the electric field varies with different parts of the teeth surfaces, and is more intensive where it is desired to remove more material. For removing material from the ends and from the tops of the teeth of a cylindrical pinion P (Fig. 3) carried by a rod 1, a cathode is used consisting of two metal discs 3 mounted on and insulated from rod 1, the discs being connected together by metal strips 5 arranged opposite the teeth of pinion P. In a modification for a conical pinion the discs are replaced by two frusto-conical pieces disposed opposite the ends of the teeth, connected by strips disposed opposite the tops of the teeth. In another embodiment for removing material from the ends of a pinion and from the tops of the teeth, the pinion P (Fig. 6) is surrounded by a solid metal sleeve 5b, having metallic parts 3b top and bottom provided with holes 0, and frusto-conical deflectors 6 and 6a to enable gas bubbles to move upwards. The cathode may correspond to only a portion of the teeth and may be a plate (solid or with holes) or a wire (Fig. 8), the pinion P or the cathode 5c being rotated, or the cathode 5c may be fixed, while the pinion P (Fig. 11) is only partly immersed in electrolyte and is rotated. In another embodiment (Fig. 13), a cylindrical pinion P is surrounded by an annular cathode 5d which moves between positions I and II. A modification of this consists in having two annular cathodes 5e and a sleeve cathode 5f (Fig. 14), all fixed and insulated from one another and successively connected to the source of current by a movable switch 7. Another construction consists in a plurality of elementary cathodes, such as sectors, at the periphery of a pinion, the cathodes being successively supplied with current by means of a rotary switch. A pinion may be moved past a cathode at a varying rate of movement, or mounted eccentrically and rotated in proximity to a cathode, to correct irregularities. A pinion may also be given uniform movement while partly immersed, so that parts of the teeth are immersed for a longer time as they are nearer the top, or a pinion may be given vertical reciprocating movement so that some parts are immersed for a longer time.
Patent GB-338141-A (GB)
Title: A new or improved fuel distributing device for gas producers and the like
IPC: C10J3/34
Filed: 1929-07-11
Abstract: 338,141. Jadoul, A. July 11, 1928, [Convention date]. Divided on 315,327. Charging.-A device for distributing granular material during delivery to a receiver is described in connection with the supply of fuel to a gas producer, and comprises a water-jacketed shoot 5 eccentrically mounted in a rotary casing 1 and adapted to be oscillated in a jerky manner about its own axis by a motor 18 which drives, through worm gear 14 and pinions 13, 34, a mutilated pinion 15 co-operating with a rack 16. The latter has a pin-and-slot connection with an arm 33 secured to the shoot 5 which is returned quickly to its initial position by a spring 17 when the pinion 15 frees the rack 16. The quick return movement throws the fuel resting on a horizontal plate at the bottom of the shoot 5 into the body of the producer. The casing 1 is rotated through gearing 19, 20, 2', by the motor 18 and carries a rod 23 to which is secured a spiked agitator 32.
Patent GB-1015222-A (GB)
Title: Grading of timber
Inventor: CURRY WILLIAM THOMAS
IPC: G01N3/20
Filed: 1962-05-28
Abstract: 1,015,222. Separating solids. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 27, 1963 [May 28, 1962], No. 20454/62. Heading B2H. [Also in Division Gl] Timber is graded by its deflection under a predetermined bending moment over a known span. As shown, planks 11 are fed by supporting rollers 13a, 14a, 15a, 16a, and an adjustable weight 28 is applied to the shank 11 by a roller 24 positioned midway between the supporting rollers. The deflection of the plank moves a roller 23 and by means of levers 31, 32 operates an adjustably positioned microswitch 35 if the deflection of the timber exceeds a set value. Several microswitches may be provided to operate at different deflections or the microswitch may be replaced by other position responsive means such as a rheostat. The signal corresponding to a grade allocated to a plank may be used to route the plank at the outfeed end of the apparatus to direct it to one of a number of storage piles or working positions.
Patent GB-650346-A (GB)
Title: Improvements in or relating to control apparatus for electrode boilers or water heaters
IPC: F22B1/30
Filed: 1948-08-03
Abstract: 650,346. Automatic current control systems. BASTIAN & ALLEN, Ltd., and COX, W. J. G. Aug. 3, 1948, No. 20485. [Class 38 (iv)] [Also in Group XXXVIII] In a boiler or water heater the current supply to the electrode is maintained at a value which depends on, and is variable with, a second quantity, e.g. the temperature or pressure in the boiler. As shown, a boiler 10, having electrode 11, connected to a threephase supply, is supplied with water from a tank 14 by means of pump 15 operated by a motor 16. A feed-back path is provided comprising a pipe 17 and electrically-operated blow-off valve 18. Regulation of the current supply is achieved by a current transformer 24, coupled to one of the supply lines, which operates a relay 23 when the current to the boiler exceeds a predetermined value. Operation of relay 23 energizes the blow-off valve 18, thereby allowing the pressure in the boiler to force water back into the tank 14, thus reducing contact area between the water and the electrode and consequently reducing the current. The current value at which the relay 23 operates is varied in accordance with the pressure in the boiler. A pipe 26 connected to the boiler allows the pressure to actuate bellows 25, having a push-rod 29 which turns a rod 30 about a pivot 30a. A bar 32 containing a plurality of mercury switches 35 and pivoted at 33 is actuated by the rod 30 and push-rod 31 in such a manner that as pressure in the boiler increases the bar 32 is turned in a clockwise direction. Connected across the mercury switches are resistors 36 which are connected in parallel with the relay 23 across the transformer 24, and these resistors are successively put in circuit as the bar 32 is tilted, thereby causing a greater proportion of current to flow in the relay 23, and thus lowering the current value at which the relay operates as the pressure in the boiler increases. If, when the bar 32 is tilted to its furthest position and the water level in the boiler still rises, a screw 40 on the rod 30 is adapted to actuate mercury switches 43, 44. Switch 43 serves to disconnect the motor 16 from the supply, and switch 44 causing the relay 23 to become energized so that excess water is blown back into the tank 14. The apparatus may be operated in accordance with temperature instead of pressure variations.
Patent GB-576422-A (GB)
Title: Improvements in or relating to structures built up from laminated material
IPC: B64C1/08
Filed: 1943-12-10
Abstract: 576,422. Lattice structures. KREMER, H. Dec. 10, 1943, No. 20736. Addition to 555,496, [Group XXIII]. [Class 45] [Also in Group VIII] The invention set forth in the parent Specification is modified by building the structure up of strips 10, 11, 12, 13 of plastic or impregnated material which are overlaid in any required openwork conformation and then caused to adhere by heat and pressure. A covering skin 14, also of plastic material, is laid over one side and incorporated with the lattice formation by the same process. Alternatively a plurality of sheets of plastic material may be heat-pressed together and subsequently have the interstices cut out. A skin may also be applied to the rear side, this being effected by adhesive. Suitable plastic materials mentioned are paper, &c., impregnated with phenol formaldehyde, cresol formaldehyde, urea formaldehyde, and polystyrene.
Patent GB-890477-A (GB)
Title: New biguanides and process for their manufacture
IPC: C07C279/26
Filed: 1960-06-14
Abstract: The invention comprises a 4-biguanido-diphenyl compound containing in the 41-position an amino group or an additional biguanido group and which is substituted in the aromatic portion by at least one alkyl or alkoxy group containing 1-6 carbon atoms or their acid addition salts and the preparation thereof by reacting an appropriate 4,41-diamino-diphenyl compound or its acid addition salt, at least one amino group of which contains a hydrogen atom, with a dicyandiamide, and, if desired, a unreacted amino group containing a hydrogen atom is again reacted with a dicyandiamide and/or an acid addition salt is prepared from a resulting free base or a base from an acid addition salt.ALSO:Pharmaceutical compositions comprise 4-biguanido - 41 - aminodiphenyls or 4,41 - bis(biguanido) diphenyls which are substituted in the aromatic portions by alkyl or alkoxy groups (containing 1-6 carbon atoms) or an acid addition salt thereof or a mixture of such compounds, in admixture or in conjunction with a pharmaceutically acceptable carrier.  The compositions may be in conventional forms and may contain further therapeutically valuable substances.  Acid addition salts are formed from acceptable inorganic and organic acids.  The compositions are active against micro-organisms more especially against protozoa, e.g. trypanosomae.
Patent GB-275674-A (GB)
Title: Improvements in or relating to the transmission of pictures
IPC: H04B14/00
Filed: 1927-08-09
Abstract: 275,674. British Thomson-Houston Co., Ltd., (Assignees of Alexanderson, E. F. W.). Aug. 9, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Copying-telegraphs.-The depths of tone of the elements of a picture are indicated by wireless signals of uniform strength, but varying carrier frequency, in order that the effects of fading and atmospherics may be avoided. Analysis of picture. At the transmitter, Fig. 1, the picture is carried by a rotating drum 1 with screw-threaded spindle 4. The element to be transmitted is illuminated by a lamp 8 through a lens 10, and a pencil of light from the element reaches the photo-electric cell 15 through a short-focus lens 12 and screen 13. The element and screen are at conjugate foci of the lens, and the lens is located close to the element so as to collect as much light as possible, while the aperture 14 in the screen 13 admits only a small part of the image of the picture element. Synthesis of picture. At the receiving station, Fig. 2, the mirror 59 is vibrated at constant frequency, but with an amplitude depending on the depth of tone of the element signalled. A pencil of light from a source 58 is oscillated by the mirror across a screen 64 having an aperture 65, and, since the frequency is constant, the quantity of light energy passing through the aperture to the recording drum 52 decreases as the amplitude of vibration increases.
Patent GB-1303161-A (GB)
IPC: A01B63/112
Filed: 1970-05-01
Abstract: 1303161 Tractor hitch INTERNATIONAL HARVESTER CO 1 May 1970 [1 May 1969] 21072/70 Heading A1P A draft link for a tractor hitch comprises a forward portion including a tubular section 21, and rearward portion 22 moving telescopically inside section 22, resilient means, eg. Belleville washers which oppose relative motion between the two portions resulting from compression and tension of the draft link under varying draft load, and bellows chamber 41 for hydraulic fluid wherein the said relative motion causes a volume variation and the hydraulic signal thus created is transferred via conduits 50, 51 to control chamber 42 which operates the actuator via linkage 49, 48 to raise or lower the tractor hitch. Bellows 41 are attached at one end to member 20 and at the other to bolt 35 of rearward portion 22. The resilient means acts on abutment disc 36 on bolt 35 and abutment wall 33 fixedly attached to tubular section 21 by cotter elements 32. The draft links may be incorporated as lower draft links in a three point hitch as shown in Fig. 2 or in an alternative embodiment one such link is incorporated as the upper link element in such a hitch. In this case more Belleville washers are provided rearwardly of wall 33 than in front.
Patent GB-299123-A (GB)
Title: Improvements in airships
IPC: B64B1/64
Filed: 1927-08-11
Abstract: 299,123. Cave, T. R. Cave-Browne-. Aug. 11, 1927. Aerostats.-In order to minimize flapping in the outer cover of a rigid airship it is secured to flexible wires lying in parabolic curves in fore-and-aft planes. Longitudinal lines 4 in the outer cover are connected by lacing or by curtains 8 to parabolic wires 5 connected through turnbuckles 9 or elastic connections to rings 10 supported by wires 11 from the corners of the transverse frame rings. Alternatively the wires 5 may be anchored together and to radial and chord wiring in the planes of the transverse frames without connection to the frames. Planes, construction of.-The covers of the fins may be similarly restrained by curved tension members parallel to the fore and aft longitudinals of the fin framework and anchored to transverse members or other parts of the framework.
Patent GB-572438-A (GB)
Title: Improvements in or connected with apparatus for adding quantities of liquid to systems in which gas under pressure is flowing
IPC: B01F3/04
Filed: 1939-07-21
Abstract: 572,438. Moistening gases. BARR & STROUD, Ltd., and McGILL, C. D. July 21, 1939, No. 21174. [Class 55 (ii)] [Also in Groups XXIII and XXIX] In order to add liquid to a system wherein gas under pressure is flowing, a liquid container C is connected with the system by a valved passage through which the gas may pass into and rise above -the liquid which is thereby forced into the system. An application for cleaning the windows of a rangefinder is described. A pump B delivers air through a tube 1, a connection piece D, and tubes 2 to nozzles 4 which direct the air on to each of the windows 3. The connection D has spigots 6 for the tubes 2, an air inlet 7, and a branch 8 controlled by a ball valve 9. The container C is connected with the branch 8 by a neck 13 with a control valve 14 which may be opened by pressing it against a spring 18 to allow air to reach the liquid. On releasing the valve head 14b, the valve closes and cuts off the liquid supply so that dry air is delivered to the windows after the liquid in the system has been ejected. The container is secured to the connection piece D by a nut 17 when the neck 13 depresses the ball 9.
Patent GB-382646-A (GB)
Title: Improvements relating to the treatment of water
IPC: C02F1/76
Filed: 1931-07-24
Abstract: 382,646. Purifying water. ALLEN, F. D. C., 14, Church Road, Hanwell, London. July 24, 1931, No. 21188. [Class 46.] Apparatus for supplying chlorine or other gaseous or liquid reagent in proportionate quantity to a stream of water comprises two liquid columns in connection respectively with points in the stream where the pressure is different and the difference varies with the rate of flow, a displacement body in each of the liquid columns and mechanism communicating the differential thrust on the bodies to the diaphragm of a valve which controls the flow of reagent. As shown the inlet and throat of a venturi pipe 30, through which the water passes, are connected by pipes 26, 32 to vessels 22, 24 in which bodies 34, 36 are suspended. The bodies are connected to the ends of a lever 38 and one end of the lever engages the end of a thrust rod 40, the other end of which engages the base of a bellows capsule 18 containing liquid which is in communication with one side of a diaphragm 14 controlling a needle valve 12 which governs the supply of reagent. The reagent is in communication with the other side of the diaphragm and its supply pressure is consequently dependent upon the pressure difference of the venturi pipe. The reagent is delivered to the water stream through an orifice or constriction. The bodies 34. 36 may be of sheet metal and loaded with water. The water columns in the vessels 22, 24 may be replaced by columns of mercury.
Patent GB-690572-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L33/22
Filed: 1950-08-30
Abstract: 690,572. Pipe joints. VIENNE, R. A. DE, VIENNE, J. P. DE. Aug. 30, 1950 [April 1, 1950; July 13, 1950], No. 21450/50. Class 99 (i). A resilient clamping sleeve is of polygonal periphery, and has at one or both ends longitudinal slots 2 disposed along the centre-lines of the flat sides 3 and an interrupted screw-thread 4 to receive a nut (not shown) with a tapered bore whereby the sleeve is contracted on to a pipe to be secured. The sleeve may be lined with a resilient packing sleeve (not shown). In a joint between a flexible pipe 9a, Fig. 10, and a rigid pipe 15 the slotted clamping sleeve 1 is screwed into a nut 5a rotatably mounted on a conical insert 16 to clamp the flexible tube against the insert. The insert is secured to the pipe 15 by a nut 13 or it may be formed for screwing into a fitting.
Patent GB-441856-A (GB)
Title: The manufacture of stable highly concentrated preparations containing alkali hydrosulphides
IPC: C01B17/32
Filed: 1934-07-23
Abstract: Stable preparations containing alkali hydrosulphides are obtained by strongly heating a solution containing the hydrosulphide under conditions further promoting rapid evaporation, for instance, under reduced pressure or by spray-drying.  The stability of the product may be increased by using a mixed solution of hydrosulphide and sulphide, and/or incorporating substances of a hygroscopic nature, such as glycerine, the sodium salts of sulphurized aromatic hydroxycompounds, or potassium thiocyanate.  In examples, a technical solution of sodium hydrosulphide and a solution containing 32 per cent hydrosulphide and 15,3 per cent sodium sulphide are dried under 60 mm. pressure in a vacuum apparatus heated by steam under a pressure of 4 atmospheres.
Patent GB-468906-A (GB)
Title: Improvements in or relating to clasps for string jewellery
IPC: A44C5/20
Filed: 1936-08-05
Abstract: 468,906. Necklaces etc.; fastenings. BROGAN, B. F. Aug. 5, 1936, No. 21561. [Class 43] [Also in Group XXV] A clasp for string jewellery comprises a hollow body provided in its interior at each end with snap fastening means separate from the hollow body but co-operable therewith to be engaged by the opposite ends of the necklace &c. An aperture 18, Figs. 3 and 5, formed in the back 16 of the jewelled body 12 of the fastening, and from this aperture run slots 19, 21, which extend through the concave end walls 14. Within the hollow interior of the body, is a spring metal plate 23, Fig. 6, positioned by side wings 24 of the same contour as the side walls of the body, and having parts cut out and bent up at 27. At the ends curved flanges 28 are formed with slots 29 aligned with the slots 19, 21. A connecting-member 31 attached to each end of the bead string or chain has a ball-end 32 whose diameter is greater than the width of the restriction produced between portions 27 and the back of the body. The ball-end of a connecting-member is passed through the aperture 18 and drawn towards an end wall 14, snapping past the restriction. The shank 34 is then pressed over the point 37 of the end wall and rests in the concavity 22 thereof, the flange 28 being flexed by this operation so that the resulting tension holds the member 31 in position. In a modification, Fig. 8, two separate apertures 41, 42, and slots are provided and there are two spring plates each substantially like half the plate of the first form except that the side wings 43 are straight and abut against the rear wall of the extension a. The metal removed in producing the slot 44 may form an extension 46 to prevent longitudinal movement of the plate.
Patent GB-350295-A (GB)
IPC: D03J5/00
Filed: 1930-07-16
Abstract: 350,295. Pirns. FELTEN &, GUILLEAUME CARLSWERK AKT.-GES., Mulheim, Cologne, Germany. July 16, 1930, No. 21589, Convention date, July 16, 1929. [Class 120 (iii).] In a pirn for use in automatic looms comprising a metal shell a and a head f secured by driving the bush e into the interior of the shell, the bush is conicallv recessed to facilitate entrance of the spindle. A second bush b is secured near the top of the pirn by indentations or grooves c and is similarly recessed. The exterior of the shell a is roughened or grooved to prevent the windings from slipping.
Patent GB-531518-A (GB)
Title: Improvements in or relating to belts
IPC: B65G15/32
Filed: 1939-07-25
Abstract: 531,518. Compound fabrics. RAYBESTOSMANHATTAN, Inc. July 25, 1939, No. 21589. Convention date, July 30, 1938. Drawings to Specification. [Class 140] A laminated belt, e.g. a conveyer belt having a transverse arcuate curvature, is made by superposing a plurality of plies of belting material, e.g. of woven textile fabric of progressively varying widths, laterally tensioning the narrower plies to conform to the width of the widest ply, securing the plies together and then releasing the tension. The plies are preferably secured together by vulcanizing rubber adhesive. Specification 421,803, [Group XXX], is referred to.
Patent GB-905129-A (GB)
Title: Synchronous communication system with nonsynchronous terminals
IPC: H04J3/07
Filed: 1960-06-20
Abstract: 905,129. Electric selective signalling systems. COLLINS RADIO CO. June 20, 1960 [Sept. 25, 1959], No. 21592/60. Class 40 (1). In a data transmission system data is read asynchronously from a record, transmitted at a uniform rate, and then written into a second record asynchronously. As described, data is read from a record card, transmitted, and punched on to a further record card. Data from a record card, Fig. 4, is read row-by-row, each row having eighty bits. The bits of each row are registered in eight ten-bit shift registers 101-108, Fig. 6. These registers are then read out serially, under the control of a local oscillator so that each row is transmitted as a succession of ten eight-bit parallel words, Fig. 3. The periods between reading successive rows of the card are filled in by no-information words NIF, generated locally at the transmitter. When a row is about to be read the card reader produces a row pulse which causes a locally generated start-of-row SOR word to be transmitted. Also the entry of a card in the card reader produces a card pulse which causes a start-of-card SOC word to be transmitted so that the sequence of words actually transmitted is as shown in Fig. 3. At the receiver these words are fed into a buffer store, having a three-row capacity at least, under the control of an oscillator at the receiver locked to the oscillator at the transmitter by no information NIF words. The data is read from this store under the control of timing pulses derived from the card punch into eight shift registers similar to those shown in Fig. 6 to give eighty parallel outputs to operate the card punch. Specification 828,782 is referred to.