baber/WOPTO huggingface dataset:
Patent GB-229151-A (GB)
Title: Ventilators for rooms and the like
IPC: E06B7/10
Filed: 1924-05-10
Abstract: 229,151. Pearce, F. R. R. J. May 10, 1924. No Patent granted (Sealing fee not paid). Ventilators.-A ventilator of the construction described in Specification 217,802 is provided with means for rendering it ineffective in inclement weather. As shown in Fig. 1, the means comprise a hit-and-miss arrangement in which the sliding shutter a is actuated by cords c attached to a knob c<1> on the shutter a, and passing over pulleys b, b<1> on the end supports a<3> of the fixed shutter a<2>. In the modification, Fig. 4, the ventilator e is secured at an angle in a pivoted frame f which can be swung out of the way of the upper sash by a cord l. A cord or chain r secured to the bottom rail k<1> of the upper sash and passing round pulleys t in a tube s on the sill v can be attached to a hook w on the lower sash so that the upper sash is automatically lowered by raising the lower sash. The upper sash may be raised automatically by raising the lower sash by disconnecting the cord r and allowing the spring bolt k<2> to engage in the recess y in the slotted tube o on the upper sash.
Patent GB-1324836-A (GB)
Title: Continuous fluid-solid contact method and apparatus for removing a component from a fluid stream
IPC: B01J47/10
Filed: 1971-04-27
Abstract: 1324836 Filtering or ion-exchange apparatus HYDRONAUTICS INC 27 April 1971 [13 July 1970] 11614/71 Headings BID and B1J One component is removed from a fluid stream by filtration or ion-exchange by contacting the stream with a continuously moving bed of filter material, the filter bed being caused to move by hydraulic pressure formed by flowing a stream of carrier liquid through the bed, the carrier liquid being withdrawn intermediate the ends of the bed. In Fig. 1, filter material is mixed with carrier liquid in vessel 20 and then passed via line 36 into an annular column 12, causing a bed 70 of filter material to move upwards through the column. The fluid stream to be filtered is introduced via line 72 collar 64 and screen 68. Filtered fluid and carrier liquid are removed into the core of the column via screen 32. Filter material is removed at the top of the column by scraper 76 and led away for disposal or regeneration. The component separated from the fluid may be solid or liquid. The method is suitable for the separation of oil-water mixtures using polyurethane or polystyrene foam beads as filter material, the beads being regenerated by heating, treating with solvent for the oil or compressing to squeeze out the oil. Other filter materials mentioned are felt stock, ceramic and metallic materials.
Patent GB-1276833-A (GB)
Title: Induced draught injector for a gas burner
Inventor: GRIFFITHS ARTHUR NORMAN
IPC: F23D14/64
Filed: 1968-03-08
Abstract: 1276833 Burners EVA INDUSTRIES Ltd 6 June 1969 [9 March 1968] 11648/68 Heading F4T [Also in Division F1] An induced draught injector for a gas burner has a jet 4 introducing gas from connection 2 into a mixing passage 5a for mixing with air induced into said passage, and has a further smaller bore jet 6 arranged to coaxially enter and seat into the jet 4. The configuration shown in Fig. 1 is for high flame burning, for low flame burning the smaller jet is seated in jet 4 and thereby maintains the gas flow at least the same velocity and ensures stoichiometric combustion. The smaller bore jet 6 is radially ported at 6b for the gas flow therethrough and the jet 6 is introduced into the jet 4 by a ram 7. The ram may be operated by hydraulic or pneumatic devices or by an electric solenoid, the operation being responsive to the temperature requirements of the furnace.
Patent GB-483353-A (GB)
Title: Method of cleaning sheet metal and the like
IPC: B24C3/14
Filed: 1937-04-23
Abstract: 483,353. Sand - blast. BROADFIELD, W. H. April 23, 1937, No. 11722. Convention date, April 23, 1936. [Class 60] Metal articles are cleaned by being subected while hot and in a non-oxidizing atmosphere to an abrasive stream from an abrasive throwing wheel. The invention is described with reference to the manufacture of sheet metal. The sheet 9 after leaving the last rollers 10 of the rolling apparatus is delivered to a set of turning rollers which bring the sheet into a vertical plane for passage through a normalizing chamber 14, a treating-chainber 15 in which gaseous reagents convert the scale into a form more easily removable, an abrading chamber 18 and a cooling chamber 32. The abrading chamber is substantially gas tight and a non-oxidizing gas is circulated through pipes 30, 31. At each side of the chamber are a number of abrasive-throwing wheels 20 which may be of the kind described in Specification 464,608 and which simultaneously clean the two sides of the sheet. Spent abrasive is re-deliwered to the supply hopper 26 by conveyers 22. Access to the wheels 20 is by way of removable covers 36.
Patent GB-504971-A (GB)
Title: Improvements in protective roof coverings
IPC: E04D11/02
Filed: 1938-04-19
Abstract: 504,971. Roofs ; slabs. WERNER, F. April 19, 1938, No. 11724. [Classes 20 (iv) and 87 (i)] A roof covering comprises a plurality of a layers b, a, e of aggregate arranged one above the other in layers of different gradings of aggregate, adjacent layers being held together by a binder mixed with aggregate in a plurality of gradings, of which the coarsest is finer than the smallest size of aggregate arranged in layers. The layers b, a, e of aggregate may be arranged in gradings which increase in size from the lowermost layer upwards; this aggregate may be of stone chippings, and the size of the chippings in the three layers b, a, e may be respectively 1, 2 and 3 mms. The interposed binding layers c may consist of bitumen or tar which is mixed with at least two different grades of aggregate, such as asbestos, kieselguhr, or slate dust, about 0À1 and 0À2 mm. in size. In an alternative form of the :invention, a plurality of layers of aggregate is arranged one upon the other in layers of different gradings of aggregate, the particles of the aggregate having been previously coated individually with a binder mixed with an aggregate in a plurality of different gradings of which the coarsest is finer than the smallest size of the particles to be coated. The particles to be coated may be stone chippings about 0À5 to 3 mms. in size, and the aggregate contained in the binder may be about 0À1 and 0À2 mm. in size. These layers are laid in succession, with the aggregate in successive layers increasing in size. The covering, in either of the above constructions, may be prepared, prior to laying on the roof, in the form of one or more slabs, each of which has the desired layered construction.
Patent GB-418445-A (GB)
Title: Improvements in and relating to the vulcanization of rubber
IPC: C08K5/32
Filed: 1933-04-21
Abstract: Nitrated methylene di-$b-naphthol is prepared by dissolving di-b -naphthol in cold glacial acetic acid and treating the mixture with concentrated nitric acid.ALSO:Aromatic compounds containing two aryl groups of the benzene or naphthalene series each of which is substituted by a nitro group and at least one of which contains a hydroxy group are incorporated with rubber mixes in small amounts, for example, of from 1/10 to 3 per cent, as scorch retarders.  Rubber mixes containing accelerators or ultra-accelerators may have any tendency to scorch below about 260 DEG  F. eliminated in this manner. Nitrohydroxyaryl compounds especially suitable are 2-2-di(3-nitro-4-hydroxyphenyl)propane, x-x1-dinitro - 4 - hydroxydiphenyl, and nitrated methylenedi-b -naphthol.  The latter compound may be prepared by dissolving di-b -naphthol in cold glacial acetic and treating the mixture with concentrated nitric acid. Accelerators, which can be used either alone or in various admixtures, include aldehyde-amine, thiazole, and dithiocarbamate accelerators, for example, mercaptobenzothiazole, zinc dimethyldithiocarbamate, the reaction product of mercaptobenzothiazole and diphenylguanidine, and the butyraldehyde-aniline condensation product prepared according to the process described in U.S.A. Specification 1,780,334.  An example formula for a rubber mix containing one of the above defined scorch retarders is given.  These agents may also be employed in the preparation of air-curing or self-curing rubber cements, to retard gelling.  An example of such a cement is given. By the use of the scorch retarders specified, the amounts of softeners such as pine tar and pine oil added to rubber stocks may be decreased.  The qualities of rubber flooring, sole, toplift and bead stocks, and similar stocks containing at least 50 per cent by weight of fillers is also improved by the presence of these compounds.  Compositions containing the scorch retarders specified may also comprise reinforcing pigments, activators, softeners, antoxidants &c.  The Specification as open to inspection under Sect. 91 comprises also the use of nitrohydroxy aromatic compounds in general as scorch retarders, trinitrophenol and 2-4-dinitrophenol being specifically mentioned.  Examples illustrating the employment of 2-4-dinitrophenol are given.  This subject-matter does not appear in the Specification as accepted.
Patent GB-527681-A (GB)
Title: Improvements in the treatment of articles with volatile organic solvents and apparatus therefor
IPC: C23G5/04
Filed: 1939-04-19
Abstract: 527,681. Dry-cleaning. WACKER GES. FUR ELEKTROCHEMISCHE INDUSTRIE, A. April 19, 1939, No. 11778. Convention date, Jan. 16. [Class 91] In the cleaning of articles by passage on a mechanical conveyer through volatile solvent the charging and discharging of the conveyer take place in a vessel which is open only at its upper part to the treatment vessel and from the lower part of which air is withdrawn by suction. For example, within a closed chamber 1 baskets 4 containing the articles are conveyed by chains 2 from a charging and discharging compartment 6 to solvent chambers 5 and back to the chamber 6; chamber 6 has a charging opening 8 in one of the sides formed by the chamber 1, and in the opposite side is an opening 9 connected with a suction fan whereby air is drawn through the opening 8 and the chamber 6 to the opening 9 and the fan, so drying the articles and preventing escape of solvent to the atmosphere. When the apparatus is out of action the opening 8 is closed by a door and the fan is stopped, preferably automatically. The solvent may be heated by a device 11, cooling coils 12 may be provided, the baskets may be oscillated or rotated at any stage in their course, racks may replace the baskets, and the compartment 6 may be arranged to one side of the vessel 1. Solvents specified are benzine, benzene, trichlorethylene, perchlorethylene, and carbon tetrachloride.
Patent GB-431931-A (GB)
Title: A new or improved key-ring
IPC: A44B15/00
Filed: 1935-04-17
Abstract: 431,931. Key rings. ROTHE VORM. ASTA GES., F., and ROTHE, F., Augsburg, Bavaria, Germany. April 17, 1935, No. 11797. [Class 44] A key ring comprises a rigid ring a with a gap b bridged by a spring tongue secured at one side of the gap and bearing resiliently at the other. In Figs. 1, 2, the rigid ring is of channel section and the spring tongue d is provided by part of a spring ring c having a gap at e and housed in the groove. The sides of the ring may be pressed in to secure the ring c. Fig. 3 shows the tongue d secured to the flat inner face of ring a by rivets f. Other methods of securing the tongue may be used.
Patent GB-751805-A (GB)
Title: Manually guided mechanical chipping or riveting hammer
IPC: E21C37/24
Filed: 1954-04-23
Abstract: 751,805. Percussive tools. ZIMMERMANN H. April 23, 1954, No. 11845/54. Class 124 [Also in Group V] A manually operated percussive tool has a handle comprising an organic resilient material having a Shore hardness of 85-100. As shown, the handle 7, which may be of polyurethane or an isocyanate polyester, fits tightly round a union 2 formed on the cap 1 of a percussive tool at one end and at the other over a projection 6 on the cap, the handle being sufficiently resilient to enable it to bedenected out of contact with the projection should it become necessary to change the handle. An arcuate passage 14 in the handle enables a rod 15 to operate a control valve 3 by a trigger 4 which may be of the same material as the handle. The handle may be cast directly on to the cap, Figs. 4 and 5 (not shown),. and it may be provided with a shield to protect the hand of the operator. The part of the handle at the projection 6 may be protected by a sheet of steel.
Patent GB-132470-A (GB)
Title: Improvements in and connected with Spinning Tops.
Inventor: WILLOUGHBY JOSEPH
IPC: A63H1/00
Filed: 1919-05-12
Abstract: 132,470. Willoughby, J. May 12, 1919. Tops for spinning on surfaces; spinning tops, means for. - A spinning-top com prises a tin a and lid b pierced with centra apertures c to re. ceive an axis pin c and a weight e con. sisting of a disk of wood, metal, &c., or weighting material such as cement, metal borings, or other cheap material. The pin d may have an enlarged tapered head f to prevent retraction through the lower aperture c, or the pin may be parallel throughout its length and be held in position by a transverse pin g embedded in the weighting-material or engaging a groove h in the weight e. The spinning may be effected by a string threaded through a. hole i, and., according to the Provisional Specification, the top may be steadied during the winding operation by a forked member with holes through which the pin is passed.
Patent GB-418510-A (GB)
Title: Improvements in structural and reinforcing units for use in reinforced concrete beams in steel frame buildings and the like
IPC: E04B1/21
Filed: 1933-04-24
Abstract: 418,510. Reinforced concrete. McMILLAN, R. E., 639, New Canterbury Road. Dulwich Hill, Sydney, Australia. April 24, 1933, No. 11925. Convention date, May 11, 1932. [Class 20 (iv).] A reinforcing unit for reinforcedconcrete beams adapted to extend between steel stanchions S comprises top and bottom longitudinal members a, b, Fig. 1, connected together by stirrups d, and transverse members e, g are welded to the top and bottom members to provide means for transferring the stresses to the stanchions. The stirrups d may consist of spaced members connected to the longitudinal members a, b, by either welding or wiring or by both these means. Alternatively, the stirrups d may be in the form of a continuous spiral or a sheet of metal fabric welded to the longitudinal members. The top members a are straight throughout their lengths, and some or all of the bottom members b may be bent up at one or both ends and welded to the transverse member e which is welded to the top members a. The member e, which may be of T, angle or other section, is secured to the stanchion S by bolting, riveting or welding. The lower transverse member g may be of angle, flat or other shape and adapted to bear against one or more wedges or packing pieces h, which are interposed between the member g and the stanchion and may have projecting ends adapted to be bent around the edges of the stanchion. Alternatively, the member g may be first welded to the bottom members b and then bolted, riveted or welded to the stanchion. A bracket i may be riveted or welded to the stanchion beneath the bracket g and may be secured to the latter by welding, riveting or bolting. Instead of bending the ends of the bottom bars b, a series of short bars n may be welded to the upper transverse member e as shown in Fig. 2. The bars in the top and bottom series may be arranged in two or more rows, and, as shown in Fig. 5, separators q may be welded between adjacent rows. The floor slabs m adjacent the stanchion S and beam are provided with additional reinforcing bars k, Fig. 3, which are placed parallel to the longitudinal members a, and may be bent around the stanchion. The Specification as open to inspection under Sect. 91 describes also the bottom bars b as welded to a flat plate which is welded either to the stanchion or to the bracket i, Fig. 1. This subject-matter does not appear in the Specification as accepted.
Patent GB-323989-A (GB)
Title: Improvements in or relating to forks and similar hand implements used in land cultivation
IPC: B25G3/02
Filed: 1929-04-17
Abstract: 323,989. Hunt & Sons, (The Brades), Ltd., W., and Heaton, W. April 17, 1929. Hollow T-shaped handles.-The shaft b and cross handle a of agricultural forks &c. e are formed of drawn steel tubing welded together at c and the lower end of the shaft is welded to to the neck d of the implement at f, metal or hard wood knobs h being secured to the open end of the cross handle by rivets i. In the modification shown in Fig. 4 the shaft k is of wood and has its ends secured by rivets l in sockets b<1>, b<11> provided in the tubular metal T- handle a and implement e respectively.
Patent GB-866192-A (GB)
Title: Improvements in or relating to industrial fork lift trucks
Inventor: SHARP CHARLES WILSON
IPC: B66F9/16
Filed: 1958-04-15
Abstract: 866,192. Fork lift trucks. CONVEYANCER FORK TRACKS Ltd. April 14, 1959 [April 15, 1958], No. 11999/58. Class 78 (3). The tines 1 of a fork lift truck are pivoted to the lifting-carriage 3 at 2, and rest against rollers 16 which are movable by cranks 15 to tilt the tines into the dotted position. Cranks 15 are keyed to the ends of a shaft 12, in the centre of which is keyed a further crank 11 which is pivoted at 10 to the piston-rod 7 of an hydraulic thruster 5.
Patent GB-474421-A (GB)
Title: Improvements in and relating to the optical measurement, indication or recording of the density of smoke and so forth
IPC: G01N21/27
Filed: 1936-04-28
Abstract: 474,421. Photo electric apparatus for indicating, measuring, and recording light variations. GILBERT, V. H., and RADIOVISOR PARENT, Ltd. April 28, 1936, No. 12023. [Class 40 (iii)] Apparatus for measuring, indicating, and/or recording the density of smoke, or for like purposes such as measuring the optical properties of a substance or for daylight recording, comprises a light-sensitive device connected, preferably through an amplifier, to a meter and/or recording instrument which is designed to give current indications on a logarithmic scale, the divisions of the scale gradually increasing in size towards the point corresponding to maximum or minimum light intensity. In the arrangement shown in Fig. 1, a light-sensitive cell 1 is associated with an amplifying valve 2, in the anode circuit of which a meter 4 and /or a recording instrument 5 are connected. The cell 1 is connected to a high resistance 6 and, preferably through a resistance 17, to the grid 8 of the valve. Sliders 9, 10 of a potentiometer P are connected respectively to the cell 1 and to the resistance 6, the midpoint of P being connected to the cathode of the valve. Adjustment of the sliders is made so that a full scale deflection of the meter 4 is obtained when no light falls on the cell and a zero reading (which is preferably arbitrarily chosen so that it is given when a predetermined current is flowing) is obtained at maximum illumination of the cell. Alternatively, the connections between the sliders 9, 10 and the cell and resistance 6 may be interchanged, so that a full scale deflection corresponds to maximum illumination. The meter or recorder may be of any suitable type in which the movement of the pointer corresponds with a scale in accordance with the invention. Moving-coil instruments are preferably used, and the polepieces of the instrument may be so shaped that the coil moves in either a progressively weakening or strengthening field. As an alternative, a shunt or series resistance, or both, having a non-linear characteristic, may be used. For example, as shown in Fig. 6, a dry-contact rectifier 14 may be arranged in series with the moving coil instrument 4, both being shunted by a resistance 15. Progressive decrease of the resistance of the rectifier 14 with increase in current causes the movement of the pointer to increase logarithmically as the full scale reading is approached. One of the instruments 4, 5, Fig. 1, may be a normal linear scale instrument, so that different indications or recording, e.g. of smoke density and percentage transmission or absorption may be obtained simultaneously from the same apparatus. Alarm or like signals may be operated by the indicating meter when the reading reaches predetermined values.
Patent GB-697870-A (GB)
Title: Improvements in or relating to sizing or grading machines
Inventor: LAVENDER LESLIE ERIC
IPC: B07B13/00
Filed: 1951-05-23
Abstract: 697,870. Grading fruit and the like. CRESCENT COLD STORAGE, Ltd. May 12. 1952 [May 23, 1951; Sept. 19. 1951], Nos. 12090/51 and 21973/51. Class 117 In an apparatus for grading fruit, vegetables, eggs, or the like according to size, of the type in which the aperture of the grading device is automatically varied dur-  ing travel, the grading device consists of an annular member 1 having an internal diameter sufficiently large to permit the passage of the largest article to be graded, and provided with equally spaced radial slots 2. Within each is a rod 3 which is pivotally secured to a bracket 4 secured to the member 1. The rods are free to swing inwardly and their position is determined by means of an annular cam 5 which is mounted for rotation on the member 1 and may be controlled through a lever 8, which thus varies the size of the grading aperture. The grading device or a number of such devices may be mounted on a conveyer, the lever 8 co-operating with a converging or stepped track alongside the conveyer. In an alternative arrangement; Fig. 4 a plurality of such grading devices are mounted on a rotating wheel-11 and to increase the apertures 14 as the movement progresses each of the cams 15 is pivotally connected with a spring-loaded push rod 16 which co-operates with a fixed cam 18.
Patent GB-252159-A (GB)
Title: Improvements in range finders
IPC: G01C3/20
Filed: 1926-05-10
Abstract: 252,159. Goerz Optische Anstalt Akt.-Ges., C. P. May 12, 1925, [Convention date]. Range-finders for use with aerial targets for determining the vertical and horizontal projections of the distances of the target from the observer are provided with two scales operated by logarithmic cams, the scales being moved one over the other in a manner similar to that of logarithmic slide rules. One of the cams is positively connected with the range prism adjusting means and the other with the device for adjusting the rangefinder in altitude. The rangefinder casing 1 carries the roller 2 by which the range is determined by operating the prisms 9, 10, through bevel wheels 4<a>, 5, 6, 8, the range being read on the drum 4. The scale 20<a> is rotated proportionally to the logarithm of the range indicated on the drum 4 by means of logarithmic cams 19, 20 actuated from the shaft 7 carrying the pinion 8 by toothed wheels 11, 12, the latter carrying a pin 13 acting on the end of a spring 14, the other end being attached to a spindle 15 rotating the cam 19. Cams 19, 20 are connected bv steel bands wound round their surfaces in opposite directions. The height of the target is read by means of a pointer or a disc 21 carrying a mark. A radially guided slide 22 on the disc forced outward by a spring 23 engages by fine teeth with the inner edge of the scale disc 20<a>, and may be disengaged by the rotation of the knob 25, having an eccentric groove engaging a pin 22<a> on the slide 22. The disc 21 is secured to the shaft 26, which is rotated by logarithmic cams 27, 28 from the bevel wheels 33, 32 when the rangefinder is elevated by rotating it in the bearing 34, in a similar manner to that by which the scale 20<a> is operated, so that rotation of the shaft 26 is proportioned to the logarithms of the sines of the angles of altitude. Additional cams and an additional disc on the shaft 26 actuated bv rotation of the rangefinder in the bearing 34 may be provided to give the horizontal projection of the target position.