US2767032A - Platform for painting poles - Google Patents

Platform for painting poles Download PDF

Info

Publication number
US2767032A
US2767032A US290766A US29076652A US2767032A US 2767032 A US2767032 A US 2767032A US 290766 A US290766 A US 290766A US 29076652 A US29076652 A US 29076652A US 2767032 A US2767032 A US 2767032A
Authority
US
United States
Prior art keywords
platform
truck
pole
poles
painting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US290766A
Inventor
Maurice E Mitchell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MITCHELL MAINTENANCE Co I
MITCHELL MAINTENANCE COMPANY Inc
Original Assignee
MITCHELL MAINTENANCE Co I
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MITCHELL MAINTENANCE Co I filed Critical MITCHELL MAINTENANCE Co I
Priority to US290766A priority Critical patent/US2767032A/en
Application granted granted Critical
Publication of US2767032A publication Critical patent/US2767032A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C21/00—Accessories or implements for use in connection with applying liquids or other fluent materials to surfaces, not provided for in groups B05C1/00 - B05C19/00

Definitions

  • This invention relates to a work platform adapted especially for use in painting utility poles, and to means for mounting such a platform on a truck. It is the primary object of the invention to provide means for painting utility poles more eciently.
  • I provide a work platform on the side of a truck, from which a painter can paint the entire surface of an upper portion of a pole at one setting; and I mount the platform so that it can be transported in a storage position against the side of the truck and can be moved along the truck, as on a track, and swung to a horizontal work position at any point along the side of the truck.
  • I desirably use a U-shaped platform which in work position provides walkways on three sides of the pole and extends far enough beyond the pole to permit the painter to reach the fourth side of the pole.
  • I desirably provide a ladder on the truck alongside the platform, and mount it for movement along the truck to the selected position of the platform.
  • the painter drives from pole to pole, stops the truck alongside the pole to be painted, moves the platform longitudinally of the truck to a point opposite the pole, and then swings the platform to work position around the pole. This can be done quickly, with little lost time, and all sides of the pole can be painted with one setting of the platform.
  • the painters can work simultaneously on the same pole, but preferably work successively.
  • Fig. 1 is a side elevation of a truck provided with a track and platform embodying my invention
  • Fig. 2 is a partial end elevation of the truck, with the platform shown in work position embracing a pole;
  • Fig. 3 is a plan view of the apparatus shown in Fig. 2;
  • Fig. 4 is an elevation similar to Fig. 2, showing the platform in lowered position;
  • Fig. 5 is a partial end elevation showing a suitable connection between the platform and track.
  • Fig. 6 is a view similar to Fig. 4 showing the relationship of the ladder to the track rails.
  • the truck 10 is provided along its right side with a track consisting of a pair of rails 12 and 14 upon which are mounted a platform 16 and a ladder 50.
  • the rails 12 and 14 preferably extend the full length of the side panel of the truck 10 and the platform 16 and ladder 50 are slidable therealong so that they may be adjusted longitudinally of the truck to bring the platform into position opposite the pole to be painted.
  • platform 16 and ladder 50 while slidable along the rails, are desirably interlocked with at least one of the rails to avoid accidental displacement therefrom, and the platform is also movable between a horizontal work position and a storage position in which it lies at against the side of the truck.
  • the movement between such positions is a swinging movement about the upper rail 12.
  • a suitable slidable, interlocked, and swinging connection is shown in Fig. 5.
  • the rail is formed as an upwardly open channel, with a back tiange 20 by which it may be attached to 4the truck, a bottom web 22, an upstanding front flange 24 at the outer edge of the web 22, and a curved hook 26 at the upper edge of the flange 24.
  • the platform is carried by supporting members 28 which have curved hook-shaped portions 30 that pivotally and slidably interlock with the rail 12. The platform is interengaged with the rail by sliding the hooks 30 into the end of the rail 12, and is held interlocked therewith both when in raised position as shown in Fig. 2 and when in folded or lowered position as shown in Fig. 4.
  • the platform comprises a rigid frame 32, welded or otherwise secured to the supporting members 23.
  • the frame is covered with a suitable ooring 34, conveniently expanded metal, welded or otherwise secured to the frame 32.
  • the platform is generally U-shaped, with an inner cross walk 41B extending parallel with the side of the truck and two side walk-ways 42 extending outward from the side of the truck. i have found it convenient to make the platform about 4 feet wide and the side walk-ways about 4 feet long with a spacing of about 18 inches between them.
  • a brace 36 is pivoted to the walk-ways 42 of the platform at about the middle thereof, and in supporting position such brace 36 extends diagonally downward into releasable engagement with the lower rail 14.
  • the platform By disengaging the brace 36 from the lower rail 14, the platform may be swung downward about the upper rail to its storage position against the side of the truck.
  • the rails 12 and 14 desirably also carry a ladder 553, slidably supported thereon by a pair of hooks 52, which may be short lengths of the same stock as that of the platform supporting members 28.
  • the hooks 52 are secured to the ladder at suitably spaced points and are slidably interlocked with the two rails 12 and 14
  • To mount the equipment on a truck the two rails 12 and 14 are suitably secured to the side wall of the truck in horizontal spaced parallel relation.
  • the platform is then mounted on the rails by sliding the supporting member 28 into the end of the upper rail 12.
  • the ladder' Si? is similarly mounted on the rails 12 and 14 by sliding its hooks 52 into the ends of the rails 12 and 14.
  • the ladder may be either in front of or behind the platform as desired,
  • the platform normally hangs in depending position as shown in elevation in Fig. l and in dotted lines in Fig. 2.
  • the inter-engagement between its supporting member 28 and the rail 12 prevents its displacement from the rail, and for normal movement of the truck from pole to pole, the platform can be left hanging from the upper rail 12.
  • the truck is driven up alongside a pole 66 to be painted. No exact relationship to the pole is required, because of the freely slidable adjustment which the platform mounting permits.
  • the operator slides the platform in lowered position along the rail 12 to a point opposite the pole 60, and then swings the platform out from the truck, pivotally about the supporting rail 12, with its walk ways 42 swinging up on 'one walkway 42 to the other walkway 42. He can thus move freely around the pole and paint its entire surface in one setting of the platform.
  • he finishes one pole he simply releases the brace 36, swings the platform i6 -downward againstV the truck, and moves on to the next pole.
  • the apparatus greatly facilitates the painting of poles.
  • VIt is quickly moved from pole to pole, it is quickly eet up at each pole, and it permits all sides of a pele to be painted with one setting. It permits the painter to spend his time in painting and not in moving and setting up ladders.
  • the platform may of course be used for other purposes than painting poles, and may be used in conjunction with other equipment. When poles to be painted are higher ythan can be reachedV from the platform of this application, such platform may be used to paint intermediate'portions of the poles and top portions of the poles may be painted using other equipment, which may be carried on the sametruck.
  • a mobile truck for kservicing a series of fixed pole-like objects a track mounted longitudinally on the side of the truck, .a platform slidable along the track and movable with respect thereto at any point along the track between a retracted position against Y the side of the truckrand a work position projecting horizontally Vfrom the side of the truck, and releasable means to support the platform in work position, the truck with its platformV in retracted Y position being Vmovable to a position of general relationshipwith aV pole-like object, in which such object stands beside the truck opposite any point along the track, and the platform being then mov- Y able both along the track and to its Work position to carry it to a specified work relationship to the object with which the truck is thus generally related, said platform being U-shaped and the movement thereof from retracted position to work position carrying the open side of the Y platform outward from the truck.
  • a service truck a rail along the side thereof, a U-shaped platform pivotally and slidably supported by the rail, said platform having a storage position against the side of the truck and being swingable outward from the truck at any point in its sliding range to carry the open side of the platform outward thereby permitting the platform to be brought into embracing relationship with a fixed pole-like object at any point along the side of the truck, and a supporting brace pivotally'mounted on said platform and engageable with the side of the truck for supporting the platform in an outwardly eX- tending position.

Description

2 sheets-sheet 1 INVENTOR. Maumee ENITcHELL,
Arme/vens.
OGL 16, 1956 M. E. MITCHELL PLATFORM FOR PAINTING P'LES Filed May 29,` 1952 Oct. 16, 1956 M. E. MITCHELL 2,767,032
PLATFORM FOR PAINTING PoLEs Filed May 29, 14952 2 Sheets-Sheet 2 INVENToR. Maumee. EMITHELL,
A 'TONEYS.
Patented Oct. 16, 1956 PLATFORM FDR PAINTING POLES Maurice E. Mitchell, Muncie, Ind., assigner to Mitchell Maintenance Company, Inc., Muncie, Ind., a corporation of Indiana Application May 29, 1952, Serial No. 290,766
2 Claims. (Cl. 304-9) This invention relates to a work platform adapted especially for use in painting utility poles, and to means for mounting such a platform on a truck. It is the primary object of the invention to provide means for painting utility poles more eciently.
The painting of utility poles is tedious and time-consuming, and involves a high labor cost. Only the lower portion of a pole can be painted from the ground. Upper parts are usually painted from a ladder which the painter carries from pole to pole and which he must move at least once during the painting of each pole. Much of the painters time and effort is wasted in carrying the ladder and moving it around the pole.
In accordance with my invention, I provide a work platform on the side of a truck, from which a painter can paint the entire surface of an upper portion of a pole at one setting; and I mount the platform so that it can be transported in a storage position against the side of the truck and can be moved along the truck, as on a track, and swung to a horizontal work position at any point along the side of the truck. I desirably use a U-shaped platform which in work position provides walkways on three sides of the pole and extends far enough beyond the pole to permit the painter to reach the fourth side of the pole. For access to the platform, I desirably provide a ladder on the truck alongside the platform, and mount it for movement along the truck to the selected position of the platform. With this equipment, the painter drives from pole to pole, stops the truck alongside the pole to be painted, moves the platform longitudinally of the truck to a point opposite the pole, and then swings the platform to work position around the pole. This can be done quickly, with little lost time, and all sides of the pole can be painted with one setting of the platform. In painting poles with such equipment, it is usually desirable to utilize two or more painters, one to paint upper portions of the poles from the platform, and another or others to paint lower parts of the poles from the ground. The painters can work simultaneously on the same pole, but preferably work successively.
The accompanying drawings illustrate the invention. In such drawings:
Fig. 1 is a side elevation of a truck provided with a track and platform embodying my invention;
Fig. 2 is a partial end elevation of the truck, with the platform shown in work position embracing a pole;
Fig. 3 is a plan view of the apparatus shown in Fig. 2;
Fig. 4 is an elevation similar to Fig. 2, showing the platform in lowered position;
Fig. 5 is a partial end elevation showing a suitable connection between the platform and track; and
Fig. 6 is a view similar to Fig. 4 showing the relationship of the ladder to the track rails.
In lthe apparatus shown in the drawings, the truck 10 is provided along its right side with a track consisting of a pair of rails 12 and 14 upon which are mounted a platform 16 and a ladder 50. The rails 12 and 14 preferably extend the full length of the side panel of the truck 10 and the platform 16 and ladder 50 are slidable therealong so that they may be adjusted longitudinally of the truck to bring the platform into position opposite the pole to be painted. rIhe platform 16 and ladder 50, while slidable along the rails, are desirably interlocked with at least one of the rails to avoid accidental displacement therefrom, and the platform is also movable between a horizontal work position and a storage position in which it lies at against the side of the truck. Preferably, the movement between such positions is a swinging movement about the upper rail 12. A suitable slidable, interlocked, and swinging connection is shown in Fig. 5. The rail is formed as an upwardly open channel, with a back tiange 20 by which it may be attached to 4the truck, a bottom web 22, an upstanding front flange 24 at the outer edge of the web 22, and a curved hook 26 at the upper edge of the flange 24. The platform is carried by supporting members 28 which have curved hook-shaped portions 30 that pivotally and slidably interlock with the rail 12. The platform is interengaged with the rail by sliding the hooks 30 into the end of the rail 12, and is held interlocked therewith both when in raised position as shown in Fig. 2 and when in folded or lowered position as shown in Fig. 4.
The platform comprises a rigid frame 32, welded or otherwise secured to the supporting members 23. The frame is covered with a suitable ooring 34, conveniently expanded metal, welded or otherwise secured to the frame 32. As shown in Fig. 3, the platform is generally U-shaped, with an inner cross walk 41B extending parallel with the side of the truck and two side walk-ways 42 extending outward from the side of the truck. i have found it convenient to make the platform about 4 feet wide and the side walk-ways about 4 feet long with a spacing of about 18 inches between them.
To support the platform in work position, a brace 36 is pivoted to the walk-ways 42 of the platform at about the middle thereof, and in supporting position such brace 36 extends diagonally downward into releasable engagement with the lower rail 14. By disengaging the brace 36 from the lower rail 14, the platform may be swung downward about the upper rail to its storage position against the side of the truck.
The rails 12 and 14 desirably also carry a ladder 553, slidably supported thereon by a pair of hooks 52, which may be short lengths of the same stock as that of the platform supporting members 28. The hooks 52 are secured to the ladder at suitably spaced points and are slidably interlocked with the two rails 12 and 14 To mount the equipment on a truck, the two rails 12 and 14 are suitably secured to the side wall of the truck in horizontal spaced parallel relation. The platform is then mounted on the rails by sliding the supporting member 28 into the end of the upper rail 12. The ladder' Si? is similarly mounted on the rails 12 and 14 by sliding its hooks 52 into the ends of the rails 12 and 14. The ladder may be either in front of or behind the platform as desired, The platform normally hangs in depending position as shown in elevation in Fig. l and in dotted lines in Fig. 2. The inter-engagement between its supporting member 28 and the rail 12 prevents its displacement from the rail, and for normal movement of the truck from pole to pole, the platform can be left hanging from the upper rail 12.
To put the apparatus into use, the truck is driven up alongside a pole 66 to be painted. No exact relationship to the pole is required, because of the freely slidable adjustment which the platform mounting permits. The operator slides the platform in lowered position along the rail 12 to a point opposite the pole 60, and then swings the platform out from the truck, pivotally about the supporting rail 12, with its walk ways 42 swinging up on 'one walkway 42 to the other walkway 42. He can thus move freely around the pole and paint its entire surface in one setting of the platform. When he finishes one pole he simply releases the brace 36, swings the platform i6 -downward againstV the truck, and moves on to the next pole.
The apparatus greatly facilitates the painting of poles.
VIt is quickly moved from pole to pole, it is quickly eet up at each pole, and it permits all sides of a pele to be painted with one setting. It permits the painter to spend his time in painting and not in moving and setting up ladders. The platform may of course be used for other purposes than painting poles, and may be used in conjunction with other equipment. When poles to be painted are higher ythan can be reachedV from the platform of this application, such platform may be used to paint intermediate'portions of the poles and top portions of the poles may be painted using other equipment, which may be carried on the sametruck.
I claim as my invention:
1. In combination, a mobile truck for kservicing a series of fixed pole-like objects, a track mounted longitudinally on the side of the truck, .a platform slidable along the track and movable with respect thereto at any point along the track between a retracted position against Y the side of the truckrand a work position projecting horizontally Vfrom the side of the truck, and releasable means to support the platform in work position, the truck with its platformV in retracted Y position being Vmovable to a position of general relationshipwith aV pole-like object, in which such object stands beside the truck opposite any point along the track, and the platform being then mov- Y able both along the track and to its Work position to carry it to a specified work relationship to the object with which the truck is thus generally related, said platform being U-shaped and the movement thereof from retracted position to work position carrying the open side of the Y platform outward from the truck.
2. A service truck, a rail along the side thereof, a U-shaped platform pivotally and slidably supported by the rail, said platform having a storage position against the side of the truck and being swingable outward from the truck at any point in its sliding range to carry the open side of the platform outward thereby permitting the platform to be brought into embracing relationship with a fixed pole-like object at any point along the side of the truck, and a supporting brace pivotally'mounted on said platform and engageable with the side of the truck for supporting the platform in an outwardly eX- tending position.
References tCit'ed in they file of this patent UNTED `Srll'sfilhi PATENTS 534,608 Leonhardt Feb. 19, 1895 582,097 RoosV May 4, 1897 667,803 Stone Feb. 12, 1901 788,883 Brown May 2,1905 909,876 Duncon et al. Ian. 19, 1909V 1,005,080 Storm Oct.'3, 1911 1,118,385 Timmerman Nov. 24, 1914 2,094,300 Y Moore Sept. 28, 1937 2,133,347 Fedeler Oct. 18, 1938 2,309,210 Phillips Ian. 26, 1943 2,311,932 Deckard Feb. 23, V1943 2,326,052 Moore Aug. 3, 1943 2,370,434 Wolf Feb. 27,V 1945 2,375,104 Heitshu May 1, 1945 2,601,092 CardifC June 17, 1952 Prince Nov. 4, 1952
US290766A 1952-05-29 1952-05-29 Platform for painting poles Expired - Lifetime US2767032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US290766A US2767032A (en) 1952-05-29 1952-05-29 Platform for painting poles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US290766A US2767032A (en) 1952-05-29 1952-05-29 Platform for painting poles

Publications (1)

Publication Number Publication Date
US2767032A true US2767032A (en) 1956-10-16

Family

ID=23117466

Family Applications (1)

Application Number Title Priority Date Filing Date
US290766A Expired - Lifetime US2767032A (en) 1952-05-29 1952-05-29 Platform for painting poles

Country Status (1)

Country Link
US (1) US2767032A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063514A (en) * 1961-03-13 1962-11-13 Hiyama Kazuo Retractable scaffold
US3212605A (en) * 1964-08-26 1965-10-19 Robert L Dickerson Portable scaffold
US3394963A (en) * 1966-09-30 1968-07-30 Louis A. Antonioli Foldaway seating platform
US3610368A (en) * 1969-10-15 1971-10-05 Harold R Johnson Vertically adjustable platform for scaffolding
US4033147A (en) * 1975-05-05 1977-07-05 Milliken Research Corporation Circular knitting machine with pivotally mounted access platform
US4308972A (en) * 1980-08-29 1982-01-05 Power-Flame, Inc. Separable hinge assembly for a door
US4345697A (en) * 1980-08-29 1982-08-24 Power-Flame, Inc. Separable hinge assembly for a cover
US4431082A (en) * 1981-12-30 1984-02-14 Bott John Anthony Vehicle ladder
US4624457A (en) * 1981-02-04 1986-11-25 Diversified Products Corporation Portable wall mounted exercise unit
US4699247A (en) * 1983-12-15 1987-10-13 Clarke James B Ladder levelling device
US4913262A (en) * 1988-11-14 1990-04-03 Les Industries Amisco Ltee Mechanical connection element
US6457692B1 (en) 2000-10-16 2002-10-01 Northwest Refrigeration Contractors, Inc. Hanger bracket for installing and supporting suspended equipment
US20080206443A1 (en) * 1996-10-17 2008-08-28 The Trustees Of Princeton University Enhanced bonding layers on titanium materials
US10352353B2 (en) * 2017-12-12 2019-07-16 Caterpillar Inc. Hinge assembly
US10780830B2 (en) 2017-03-27 2020-09-22 Anderson & Wood Construction Co., Inc. Mounted retractable catwalk for trucks, utility, construction, and industrial vehicles and equipment
US10780831B2 (en) 2017-03-27 2020-09-22 Anderson & Wood Construction Co., Inc. Mounted retractable catwalk for trucks, utility, construction, and industrial vehicles and equipment

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US534608A (en) * 1895-02-19 John h
US582097A (en) * 1897-05-04 William a
US667803A (en) * 1899-05-15 1901-02-12 Julius Stone Fire-escape.
US788883A (en) * 1904-06-22 1905-05-02 Daniel M Owen Portable fruit-gathering platform.
US909876A (en) * 1908-06-08 1909-01-19 Edmund B Duncon Berth-ladder.
US1005080A (en) * 1911-02-14 1911-10-03 Philip Willoughby Masi Supplemental seat for motor-cars.
US1118385A (en) * 1913-11-20 1914-11-24 Louis C Timmerman Ladder for silos.
US2094300A (en) * 1937-02-01 1937-09-28 Ether S Moore Platform for derricks
US2133347A (en) * 1936-05-04 1938-10-18 John H Fedeler Filing and display case
US2309210A (en) * 1940-08-03 1943-01-26 Macclatchie Mfg Company Platform supporting means
US2311932A (en) * 1942-03-02 1943-02-23 Charles L Deckard Hinged finger adjustable pipe rack
US2326052A (en) * 1942-04-13 1943-08-03 Dewey R Moore Pipe handling and racking platform
US2370434A (en) * 1942-12-31 1945-02-27 Harry S Wolf Film holding clip
US2375104A (en) * 1943-10-20 1945-05-01 Ferguson Harry Inc Conveying and handling unit
US2601092A (en) * 1951-04-28 1952-06-17 Ira D Cardiff Picking and pruning attachment to be mounted on trucks
US2616774A (en) * 1949-09-02 1952-11-04 John G Prince Slide away table and holding frame therefor

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US534608A (en) * 1895-02-19 John h
US582097A (en) * 1897-05-04 William a
US667803A (en) * 1899-05-15 1901-02-12 Julius Stone Fire-escape.
US788883A (en) * 1904-06-22 1905-05-02 Daniel M Owen Portable fruit-gathering platform.
US909876A (en) * 1908-06-08 1909-01-19 Edmund B Duncon Berth-ladder.
US1005080A (en) * 1911-02-14 1911-10-03 Philip Willoughby Masi Supplemental seat for motor-cars.
US1118385A (en) * 1913-11-20 1914-11-24 Louis C Timmerman Ladder for silos.
US2133347A (en) * 1936-05-04 1938-10-18 John H Fedeler Filing and display case
US2094300A (en) * 1937-02-01 1937-09-28 Ether S Moore Platform for derricks
US2309210A (en) * 1940-08-03 1943-01-26 Macclatchie Mfg Company Platform supporting means
US2311932A (en) * 1942-03-02 1943-02-23 Charles L Deckard Hinged finger adjustable pipe rack
US2326052A (en) * 1942-04-13 1943-08-03 Dewey R Moore Pipe handling and racking platform
US2370434A (en) * 1942-12-31 1945-02-27 Harry S Wolf Film holding clip
US2375104A (en) * 1943-10-20 1945-05-01 Ferguson Harry Inc Conveying and handling unit
US2616774A (en) * 1949-09-02 1952-11-04 John G Prince Slide away table and holding frame therefor
US2601092A (en) * 1951-04-28 1952-06-17 Ira D Cardiff Picking and pruning attachment to be mounted on trucks

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063514A (en) * 1961-03-13 1962-11-13 Hiyama Kazuo Retractable scaffold
US3212605A (en) * 1964-08-26 1965-10-19 Robert L Dickerson Portable scaffold
US3394963A (en) * 1966-09-30 1968-07-30 Louis A. Antonioli Foldaway seating platform
US3610368A (en) * 1969-10-15 1971-10-05 Harold R Johnson Vertically adjustable platform for scaffolding
US4033147A (en) * 1975-05-05 1977-07-05 Milliken Research Corporation Circular knitting machine with pivotally mounted access platform
US4308972A (en) * 1980-08-29 1982-01-05 Power-Flame, Inc. Separable hinge assembly for a door
US4345697A (en) * 1980-08-29 1982-08-24 Power-Flame, Inc. Separable hinge assembly for a cover
US4624457A (en) * 1981-02-04 1986-11-25 Diversified Products Corporation Portable wall mounted exercise unit
US4431082A (en) * 1981-12-30 1984-02-14 Bott John Anthony Vehicle ladder
US4699247A (en) * 1983-12-15 1987-10-13 Clarke James B Ladder levelling device
US4913262A (en) * 1988-11-14 1990-04-03 Les Industries Amisco Ltee Mechanical connection element
US20080206443A1 (en) * 1996-10-17 2008-08-28 The Trustees Of Princeton University Enhanced bonding layers on titanium materials
US6457692B1 (en) 2000-10-16 2002-10-01 Northwest Refrigeration Contractors, Inc. Hanger bracket for installing and supporting suspended equipment
US10780830B2 (en) 2017-03-27 2020-09-22 Anderson & Wood Construction Co., Inc. Mounted retractable catwalk for trucks, utility, construction, and industrial vehicles and equipment
US10780831B2 (en) 2017-03-27 2020-09-22 Anderson & Wood Construction Co., Inc. Mounted retractable catwalk for trucks, utility, construction, and industrial vehicles and equipment
US10352353B2 (en) * 2017-12-12 2019-07-16 Caterpillar Inc. Hinge assembly

Similar Documents

Publication Publication Date Title
US2767032A (en) Platform for painting poles
US6131698A (en) Scaffolding assembly
US2815132A (en) Machine for hoisting and positioning building board
US3490558A (en) Stepladder scaffold apparatus with elevating working platform
US3382988A (en) Portable panel hoist
US7661372B2 (en) Mason's adjustable chimney-platform arrangement
US2938595A (en) Multiple lift
US2280984A (en) Portable booth
US2035537A (en) Truck platform ladder
US2677580A (en) Portable elevator for overhead installations
US1593945A (en) Portable scaffold
US1015123A (en) Ladder.
US2750236A (en) Elevating platform structure
EP0823516A2 (en) An apparatus for escalading
US2749188A (en) Utility pole service equipment
US2778694A (en) Mobile swinging lift platform equipment
US3157386A (en) Adjustable building panel scaffold
US2541556A (en) Scaffold
CN112376871A (en) Safety protection supporting platform for municipal engineering construction
CN218062178U (en) Automatic movable folding ladder
CN209228005U (en) A kind of removable, folding, disassembly, lifting overhanging operating platform
AU769914B2 (en) Scaffolding assembly
CN210563314U (en) Lifting device for decoration
CN218541562U (en) Building wall auxiliary device for building house
RU187110U1 (en) MOBILE MEANS OF SECURITY