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ES2288074B1 - DEVICE TO CONFORM AN ANNULAR AND ADJUSTABLE ANDAMIO IN HEIGHT AROUND AN INDUSTRIAL FIREPLACE. - Google Patents

DEVICE TO CONFORM AN ANNULAR AND ADJUSTABLE ANDAMIO IN HEIGHT AROUND AN INDUSTRIAL FIREPLACE. Download PDF

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Publication number
ES2288074B1
ES2288074B1 ES200501551A ES200501551A ES2288074B1 ES 2288074 B1 ES2288074 B1 ES 2288074B1 ES 200501551 A ES200501551 A ES 200501551A ES 200501551 A ES200501551 A ES 200501551A ES 2288074 B1 ES2288074 B1 ES 2288074B1
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Prior art keywords
chimney
cable
crossbar
height
supports
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Expired - Lifetime
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ES200501551A
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ES2288074A1 (en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/06—Consoles; Brackets

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Movable Scaffolding (AREA)

Abstract

Dispositivo para conformar un andamio anular y ajustable en altura alrededor de una chimenea industrial; que comprende una pluralidad de soportes dispuestos radialmente enganchados a un cable que rodea la chimenea, que sustentan un entramado de tablones; cada soporte comprende un larguero con una brida superior de enganche al cable y una roldana inferior de apoyo rodante en la chimenea; de la parte inferior del larguero dimana un travesaño portatablones que se prolonga en un puntal provisto de una oreja inferior de paso de una cincha, y de unas bridas de montaje de unos tirantes telescópicos enclavables que constituyen una baranda y arriostran los puntales de los soportes; cada soporte comprende un perfil retenedor de los tablones ajustable en altura; el cable al que enganchan los soportes va protegido mediante unos casquillos con placas deslizantes antigiro; el dispositivo comprende otro cable independiente al que se aseguran los operarios mediante arneses.Device to form an annular and height-adjustable scaffold around an industrial chimney; comprising a plurality of supports arranged radially hooked to a cable that surrounds the chimney, which support a network of planks; each support comprises a stringer with an upper flange for hooking to the cable and a lower sheave for rolling support in the chimney; from the lower part of the crossbar there is a crossbar that extends on a strut provided with a lower ear of a cinch, and mounting flanges of interlocking telescopic straps that constitute a handrail and bracing the struts of the supports; each support comprises a height-adjustable plank retaining profile; the cable to which the brackets are attached is protected by bushings with anti-rotation sliding plates; The device comprises another independent cable to which operators are secured by harnesses.

Description

Dispositivo para conformar un andamio anular y ajustable en altura alrededor de una chimenea industrial.Device for forming an annular scaffold and height adjustable around an industrial chimney.

Objeto de la invenciónObject of the invention

La presente invención se refiere a un dispositivo para conformar un andamio anular y ajustable en altura alrededor de una chimenea industrial.The present invention relates to a device to form an annular and height-adjustable scaffold Around an industrial chimney.

Antecedentes de la invenciónBackground of the invention

En la actualidad los trabajos en altura en chimeneas industriales, como por ejemplo trabajos de mantenimiento, pintura, reparación de su revestimiento, etc, requieren el montaje de andamios apoyados que suponen unos costes considerables, y mayores cuanta más altura a alcanzar. También se puede optar por trabajar suspendido desde una grúa o enganche, situación en la cual no se puede mandar fuerza en óptimas condiciones para la realización de determinados trabajos, además de que la exposición al viento perjudica las condiciones de trabajo suspendido hasta tal punto que a veces no se puede realizar.At present the work at height in industrial chimneys, such as maintenance work,  painting, repairing your coating, etc., require assembly of supported scaffolding that entail considerable costs, and older the more height to reach. You can also opt for work suspended from a crane or hitch, situation in which force cannot be sent under optimal conditions for realization of certain works, in addition to the exhibition the wind damages the conditions of work suspended until such a point that sometimes it cannot be done.

Tampoco resulta rentable la instalación de plataformas permanentes en estas chimeneas, y además no se asegura a priori que su posicionamiento coincida con la zona donde en un futuro se pueda producir un contratiempo que haya que subsanar. Además estas plataformas estables ofrecen resistencia al viento y se deterioran con los agentes meteorológicos y las propias emisiones de la chimenea.Nor is the installation of permanent platforms in these chimneys profitable, and in addition it is not ensured a priori that their positioning coincides with the area where in the future there can be a setback that has to be corrected. In addition, these stable platforms offer wind resistance and deteriorate with weather agents and the chimney's own emissions.

Estos inconvenientes se subsanan con la utilización del dispositivo de la invención.These inconveniences are corrected with the use of the device of the invention.

Descripción de la invenciónDescription of the invention

El dispositivo de la invención tiene una constitución óptima que permite el montaje rápido y sencillo de un andamio anular rodeando el cuerpo troncocónico de una chimenea industrial, y a la cota adecuada para realizar los trabajos requeridos en óptimas condiciones de seguridad y apoyo estable para los operarios para poder aprovechar al máximo su fuerza.The device of the invention has a optimal constitution that allows quick and easy assembly of a annular scaffolding surrounding the frustoconical body of a chimney industrial, and at the appropriate level to perform the work required in optimal safety conditions and stable support for Operators to take full advantage of their strength.

De acuerdo con la invención, el dispositivo comprende una pluralidad de soportes iguales que se disponen radialmente fijados y apoyados en la cara o muro exterior de la chimenea. Estos soportes sustentan un entramado de tablones, preferentemente constituido por dos capas de tablones cruzados, y que constituyen el piso del andamio.According to the invention, the device it comprises a plurality of equal supports that are arranged radially fixed and supported on the face or outer wall of the chimney. These supports support a network of planks, preferably consisting of two layers of crossed planks, and which constitute the scaffold floor.

Cada soporte comprende un larguero provisto de una brida superior de enganche a un cable que rodea la chimenea y que, debido a forma troncocónica de ésta, quedará encajado o posicionado a la altura a la que la longitud que se le dé coincida con el perímetro de la chimenea.Each support comprises a stringer provided with a top flange hooked to a cable around the chimney and which, due to its conical shape, will be fitted or positioned at the height at which the given length matches with the perimeter of the chimney.

El larguero inferiormente va provisto de una roldana, de modo que aflojando el cable se produce su descenso y el de todos los soportes por la chimenea, cooperando las roldanas de los soportes en facilitar este movimiento al situarse en la zona donde el soporte transmite mayores fuerzas contra la chimenea. A su vez, el cable va protegido del roce contra la chimenea por unos casquillos que sueldan unas placas que deslizarán por la pared o muro de la chimenea sin que se produzca su giro, ya que de otro modo se rozaría el cable.The crossbar is inferiorly provided with a sheave, so loosening the cable produces its descent and the of all the supports by the chimney, cooperating the rollers of the supports in facilitating this movement when placed in the zone where the support transmits greater forces against the chimney. To its Once, the cable is protected from rubbing against the chimney by bushes that weld plates that will slide along the wall or chimney wall without its turning, since another mode the cable would rub.

Por su parte, la brida superior se monta al larguero telescópicamente, para conseguir la óptima nivelación de todos los soportes.For its part, the top flange is mounted to the telescopic beam to achieve optimum leveling of All brackets.

De la parte inferior del larguero dimana un travesaño portatablones sensiblemente horizontal, que se prolonga por su extremo libre en un puntal sensiblemente paralelo al larguero. Este puntal está provisto de una oreja inferior por la que pasará una cincha que igualmente pasara por los puntales de todos los soportes configurando un zócalo común. También implementa el puntal unas bridas superior e intermedia en las que se fijan articuladamente unos tirantes o barras horizontales telescópicas enclavables en extensión que arriostrarán los puntales de todos los soportes entre sí, permitiendo la fijación articulada de estos tirantes la adaptación a las variaciones de diámetro de la chimenea.From the bottom of the crossbar comes a noticeably horizontal crossbar, which extends at its free end in a strut substantially parallel to the crossbar. This strut is provided with a lower ear by the that a cinch will pass that will also pass through the struts of all the supports configuring a common socket. Also implements the strut upper and intermediate flanges in which they are fixed articulately telescopic horizontal rods or bars interlocking in extension that will brac the struts of all supports each other, allowing the articulated fixing of these braces adapting to the diameter variations of the chimney.

El entramado de tablones es mantenido o inmovilizado sobre el travesaño portatablones por medio de un perfil retenedor que con este fin se fija ajustablemente en altura en la zona extrema inferior tanto del larguero como del puntal.The plank framework is maintained or immobilized on the crossbar by means of a retaining profile that is adjustable in height for this purpose in the lower end zone of both the stringer and the strut.

Los tablones adyacentes al contorno de la chimenea se adaptan a la forma curva de ésta mediante la configuración curva de sus cantos, eliminando cualquier hueco que pueda suponer un peligro para los operarios.The planks adjacent to the contour of the chimney adapt to the curved shape of it by the curved configuration of its edges, eliminating any gap that may pose a danger to operators.

El dispositivo se completa con un cable adicional fijado independientemente a la chimenea, y al que se aseguran los operarios mediante el correspondiente arnés.The device is completed with a cable additional fixed independently to the chimney, and to which Operators ensure through the corresponding harness.

Breve descripción de los dibujosBrief description of the drawings

La figura 1 muestra una vista del dispositivo de la invención configurando un andamio alrededor de una chimeneaFigure 1 shows a view of the device the invention by configuring a scaffold around a chimney

La figura 2 muestra una vista lateral de un soporte del dispositivo de la invención.Figure 2 shows a side view of a support of the device of the invention.

La figura 3 muestra un detalle en planta de la fijación de los tirantes al puntal del soporte del dispositivo de la invención.Figure 3 shows a plan detail of the fixing the braces to the support strut of the device the invention.

Descripción de una realización práctica de la invenciónDescription of a practical embodiment of the invention

El dispositivo 1 de la invención comprende una pluralidad de soportes 2 iguales que se disponen radialmente apoyados y fijados en la cara exterior 3 de la chimenea 4, y cogidos por un cable 5 que rodea a ésta.The device 1 of the invention comprises a plurality of supports 2 equal that are arranged radially supported and fixed on the outer face 3 of the chimney 4, and caught by a cable 5 surrounding it.

Cada soporte 2 tiene un larguero 6 que apoya en la cara exterior 3 de la chimenea en el sentido de la generatriz, y que está provisto de una roldana inferior 8 y de una brida superior 9 para enganchar en el cable 5. Como las chimeneas industriales son troncocónicas, se produce un encajamiento o inmovilización del cable a la cota en la que su longitud coincide con el perímetro de la chimenea, y basta con ajustar la longitud del cable para situar el dispositivo de la invención a la cota adecuada. Por tanto se pueden realizar incluso trabajos a lo largo de toda la chimenea, como por ejemplo de pintura, montando el dispositivo de la invención en la parte superior o cumbrera de la chimenea y haciéndolo discurrir descendentemente simplemente aflojando el cable 5, y unos tirantes y cinchas necesarias que se describen más adelante. En este movimiento descendente las roldanas ruedan por la cara o muro de la chimenea, mientras que el cable queda protegido del roce por medio de unos casquillos 10 provistos de placas 11 deslizantes sobre la superficie de la chimenea al objeto de impedir que los casquillos 10 rueden y rocen el cable 5.Each support 2 has a crossbar 6 that supports the outer face 3 of the chimney in the direction of the generatrix, and which is provided with a lower sheave 8 and a flange top 9 to hook on cable 5. Like chimneys industrial are frustoconical, a fitting occurs or immobilization of the cable to the dimension in which its length coincides with the perimeter of the chimney, and just adjust the length of the cable to place the device of the invention at the level adequate. Therefore you can even perform work along of the entire chimney, such as painting, assembling the device of the invention at the top or ridge of the chimney and making it run downwards simply loosening cable 5, and some necessary straps and straps that are described later. In this downward movement the sheaves  they roll down the face or wall of the chimney, while the cable It is protected from rubbing by means of 10 bushings provided of sliding plates 11 on the surface of the chimney at in order to prevent the bushes 10 from rolling and rubbing the cable 5.

La brida 9 es abierta para permitir el enganche al cable 5 al colocar el soporte, y se cierra por medio de un pasador 12 desmontable. Igualmente la brida 9 se monta telescópicamente con respecto al larguero, como se ve en las figuras, lo que permite nivelar perfectamente los soportes.Flange 9 is open to allow hitching. to cable 5 when placing the support, and closes by means of a detachable pin 12. Equally the flange 9 is mounted telescopically with respect to the crossbar, as seen in the figures, allowing to perfectly level the supports.

De la parte inferior del larguero 6 dimana un travesaño 13 portatablones sensiblemente horizontal, que se prolonga por su extremo libre en un puntal 14 paralelo al larguero 6.From the bottom of the crossbar 6 arises a crossbar 13 noticeably horizontal, which extends at its free end in a strut 14 parallel to the crossbar 6.

En la zona extrema inferior tanto del larguero 6 como del puntal 14 se monta ajustablemente en altura un perfil 15 retenedor de los tablones 7. El ajuste en altura se consigue mediante la fijación de este perfil por unas bridas correderas 16 verticales extremas del mismo en tornillos 17 del larguero y puntal, Lo que permite adaptarse al grosor de los tablones.In the lower end zone of both the crossbar 6  as of the strut 14 a profile 15 is mounted height-adjustable plank retainer 7. Height adjustment is achieved by fixing this profile by sliding flanges 16 extreme verticals thereof in bolts 17 of the stringer and strut, which allows to adapt to the thickness of the boards.

Por su parte, el entramado de tablones se constituye base dos capas 7a y 7b en disposición cruzada.For its part, the plank framework is two layers 7a and 7b in cross arrangement constitute base.

En el puntal 14 está provista una oreja 18 inferior así como bridas 19 intermedias y superior. Por las orejas 18 de todos los soportes pasará una cincha 20 que constituye un zócalo para el andamio, mientras que en las bridas se fijan unas barras o tirantes 21 telescópicos horizontales enclavables en extensión que arriostran los puntales de los distintos soportes entre sí y constituyen las barandas o quitamiedos del andamio. La fijación de los tirantes a las bridas es articulada permitiendo adaptarse a las diferentes curvaturas del contorno de la chimenea según se va descendiendo, al igual que los tirantes son telescópicos por la misma razón. El enclavamiento de su extensión permite mantener la tensión necesaria para el atado de los puntales, y se materializa en este ejemplo no limitativo de la invención por un tornillo 22 de apriete o pasante provisto en cada tirante. Al descender el andamio es necesario también ir aflojando la cincha y ajustando la extensión de los tirantes para adaptarse a las dimensiones del contorno de la chimenea a la cota deseada.On the strut 14 an ear 18 is provided lower as well as intermediate and upper flanges 19. By ears 18 of all the supports will pass a webbing 20 that constitutes a socket for scaffolding, while flanges are fixed horizontal telescopic bars or braces 21 interlockable in extension that braces the struts of the different supports each other and constitute the rails or scaffolds. The fixing the braces to the flanges is articulated allowing adapt to the different curvatures of the chimney contour as it descends, as the braces are telescopic for the same reason. The interlocking of its extension allows to maintain the necessary tension for the tying of props, and materializes in this non-limiting example of the invention by a tightening screw 22 or through provided in each tight. When descending the scaffolding it is also necessary to loosen the strap and adjusting the extension of the straps to fit the dimensions of the chimney contour to the desired level.

Complementariamente El dispositivo de la invención también comprende un cable 23 que se fija independientemente a la chimenea, y al que se asegurarán los operarios mediante arneses, no representados.Complementarily the device of the invention also comprises a cable 23 that is fixed independently to the chimney, and to which the Operators through harnesses, not represented.

Descrita suficientemente la naturaleza de la invención, así como la manera de realizarse en la práctica, debe hacerse constar que las disposiciones anteriormente indicadas y representadas en los dibujos adjuntos son susceptibles de modificaciones de detalle en cuanto no alteren el principio fundamental.Describe sufficiently the nature of the invention, as well as how to perform it in practice, should be noted that the provisions indicated above and represented in the attached drawings are susceptible to modifications of detail as long as they do not alter the principle fundamental.

Claims (4)

1. Dispositivo para conformar un andamio anular y ajustable en altura alrededor de una chimenea industrial; caracterizado porque comprende una pluralidad de soportes iguales que se disponen radialmente fijados y apoyados en la cara exterior de la chimenea, y que sustentan un entramado de tablones que constituyen el piso del andamio; cada soporte comprende un larguero provisto de una brida superior telescópica de enganche en un cable que rodea la chimenea, y de una roldana inferior de apoyo rodante contra la misma; de la parte inferior del larguero dimana un travesaño portatablones sensiblemente horizontal que se prolonga por su extremo libre en un puntal sensiblemente paralelo al larguero y provisto de una oreja inferior de paso de una cincha que constituye un zócalo, y de unas bridas intermedias y superior de montaje de unas barras o tirantes telescópicos enclavables en extensión adaptables al contorno de la chimenea, que constituyen una baranda del andamio y que arriostran los puntales de los soportes entre sí; en la parte extrema inferior tanto del larguero como del puntal se montan ajustablemente en altura los extremos de un perfil retenedor de los tablones; el cable al que enganchan los soportes va protegido mediante unos casquillos con placas deslizantes antigiro, en orden a evitar el roce del cable contra el muro de la chimenea o contra el casquillo al descender el andamio por la chimenea; el dispositivo se completa con otro cable fijado independientemente a la chimenea al que se aseguran los operarios mediante arneses.1. Device for forming an annular and height-adjustable scaffold around an industrial chimney; characterized in that it comprises a plurality of equal supports that are arranged radially fixed and supported on the outer face of the chimney, and which support a plank framework that constitutes the scaffold floor; each support comprises a stringer provided with a telescopic upper flange for hooking on a cable surrounding the chimney, and a lower roller bearing support against it; from the lower part of the crossbar there arises a substantially horizontal crossbar that extends along its free end in a strut substantially parallel to the crossbar and provided with a lower ear of a cinch that constitutes a socket, and intermediate and upper flanges of assembly of telescopic bars or tie-rods that are interlocking in extension, adaptable to the contour of the chimney, which constitute a railing of the scaffold and that bracing the struts of the supports between them; the ends of a plank retaining profile are mounted in height at the lower end of both the stringer and the strut; the cable to which the supports are attached is protected by means of bushings with anti-rotation sliding plates, in order to avoid rubbing the cable against the chimney wall or against the bushing when the scaffolding descends through the chimney; The device is completed with another cable fixed independently to the chimney to which the operators are secured by harnesses. 2. Dispositivo según reivindicación 1 caracterizado porque la brida superior telescópica es abierta lateralmente para enganche del cable, y va provista de un pasador desmontable de cierre.2. Device according to claim 1 characterized in that the telescopic upper flange is open laterally for cable engagement, and is provided with a detachable locking pin. 3. Dispositivo según reivindicación 1 caracterizado porque el perfil portatablones se monta ajustablemente en altura por medio de su fijación por bridas correderas y tornillos fijos.3. Device according to claim 1 characterized in that the profile holder is mounted height-adjustable by means of its fixation by sliding flanges and fixed screws. 4. Dispositivo según reivindicación 1 caracterizado porque el entramado de tablones se implementa preferentemente a base dos capas en disposición cruzada.4. Device according to claim 1 characterized in that the plank framework is preferably implemented based on two layers in cross-arrangement.
ES200501551A 2005-06-24 2005-06-24 DEVICE TO CONFORM AN ANNULAR AND ADJUSTABLE ANDAMIO IN HEIGHT AROUND AN INDUSTRIAL FIREPLACE. Expired - Lifetime ES2288074B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES200501551A ES2288074B1 (en) 2005-06-24 2005-06-24 DEVICE TO CONFORM AN ANNULAR AND ADJUSTABLE ANDAMIO IN HEIGHT AROUND AN INDUSTRIAL FIREPLACE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200501551A ES2288074B1 (en) 2005-06-24 2005-06-24 DEVICE TO CONFORM AN ANNULAR AND ADJUSTABLE ANDAMIO IN HEIGHT AROUND AN INDUSTRIAL FIREPLACE.

Publications (2)

Publication Number Publication Date
ES2288074A1 ES2288074A1 (en) 2007-12-16
ES2288074B1 true ES2288074B1 (en) 2008-10-16

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103912113B (en) * 2014-03-29 2016-03-30 宜昌市天鸿科技有限责任公司 A kind of beveled structure load-bearing maintenance framed bent
WO2016079372A1 (en) 2014-11-21 2016-05-26 Fast Beam Oy Scaffolding arrangement
DE202015102148U1 (en) * 2015-04-29 2015-07-02 Hubert Schmid Bauunternehmen Gmbh catwalk
CN104878917A (en) * 2015-05-22 2015-09-02 中国十七冶集团有限公司 Movable construction platform and application method thereof
CN110644364A (en) * 2019-08-16 2020-01-03 中国一冶集团有限公司 Hoop construction platform and using method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2066984A (en) * 1934-10-11 1937-01-05 Clyde K Lamb Scaffold
US2136696A (en) * 1937-04-17 1938-11-15 Safety Scaffold Corp Scaffold
US2888298A (en) * 1956-03-15 1959-05-26 Union Tank Car Co Method and apparatus for shoring up a storage tank during construction thereof
US2906365A (en) * 1957-01-11 1959-09-29 Arthur R Howard Automatic scaffolding machine
ES210498U (en) * 1975-03-05 1976-05-01 Antuña Suarez Jose L Sliding removable scaffolding. (Machine-translation by Google Translate, not legally binding)
DE3122593A1 (en) * 1981-06-06 1982-12-23 Eberhard 7129 Güglingen Layher Console rack, preferably for working on the outer wall or inner wall of ships
ES1031317U (en) * 1995-06-07 1995-12-16 Suarez Jose Luis Antuna Fixed scaffolding for the repair of industrial chimneys. (Machine-translation by Google Translate, not legally binding)
ES1031318U (en) * 1995-06-07 1995-12-16 Suarez Jose Luis Antuna Removable sliding scaffold for the repair of industrial chimneys. (Machine-translation by Google Translate, not legally binding)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES435327A1 (en) * 1975-03-05 1976-12-01 Antuna Suarez System for carrying out works in height constructions. (Machine-translation by Google Translate, not legally binding)

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2066984A (en) * 1934-10-11 1937-01-05 Clyde K Lamb Scaffold
US2136696A (en) * 1937-04-17 1938-11-15 Safety Scaffold Corp Scaffold
US2888298A (en) * 1956-03-15 1959-05-26 Union Tank Car Co Method and apparatus for shoring up a storage tank during construction thereof
US2906365A (en) * 1957-01-11 1959-09-29 Arthur R Howard Automatic scaffolding machine
ES210498U (en) * 1975-03-05 1976-05-01 Antuña Suarez Jose L Sliding removable scaffolding. (Machine-translation by Google Translate, not legally binding)
DE3122593A1 (en) * 1981-06-06 1982-12-23 Eberhard 7129 Güglingen Layher Console rack, preferably for working on the outer wall or inner wall of ships
ES1031317U (en) * 1995-06-07 1995-12-16 Suarez Jose Luis Antuna Fixed scaffolding for the repair of industrial chimneys. (Machine-translation by Google Translate, not legally binding)
ES1031318U (en) * 1995-06-07 1995-12-16 Suarez Jose Luis Antuna Removable sliding scaffold for the repair of industrial chimneys. (Machine-translation by Google Translate, not legally binding)

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