US3637047A - Stabilized platform for window cleaning and like uses - Google Patents

Stabilized platform for window cleaning and like uses Download PDF

Info

Publication number
US3637047A
US3637047A US19046A US3637047DA US3637047A US 3637047 A US3637047 A US 3637047A US 19046 A US19046 A US 19046A US 3637047D A US3637047D A US 3637047DA US 3637047 A US3637047 A US 3637047A
Authority
US
United States
Prior art keywords
platform
frame
compartment
engaging means
border
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
US19046A
Inventor
Eric William Cox
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.)
Individual
Original Assignee
Individual
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
Priority claimed from AU52419/69A external-priority patent/AU439416B2/en
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3637047A publication Critical patent/US3637047A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
    • 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
    • E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
    • 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
    • E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
    • E04G3/32—Hoisting devices; Safety devices
    • E04G3/325—Safety devices for stabilising the mobile platform, e.g. to avoid it swinging in the wind

Definitions

  • This invention relates to workmans platforms of the type suspended from a structure, e.g., a building or tower in a manner enabling the platform to be raised and lowered.
  • the object of this invention to provide a platform of the above type which does not require rails but which incorporates means which will achieve the desired degree of stability under all conditions.
  • the platform of this invention is usable on all types of structures having substantially upright surfaces, e.g., buildings, walls, chimneys, inclined roofs and skeletal towers.
  • the invention comprises a platform for suspension in working juxtaposition to a substantially upright surface said platform comprising a frame, a decking on the frame, attachment means on the frame whereby the platform is suspendible, surface engaging means and airjet means on the frame to maintain the frame in the said working juxtaposition with said surface-engaging means operatively engaging said surface.
  • FIG. 1 is a perspective view of one embodiment of the platform
  • FIG. 2 is a perspective view of a second embodiment of the platform
  • FIG. 3 is a sectional end view on line 33 of FIG. 2 showing the platform in working juxtaposition to a wall.
  • the platform of FIG. 1 comprises a skeletal frame having upper and lower front rails l and 2, upper intermediate and lower back rails 3, 4 and 5, upper and lower end rails 6 and 7 and short and long corner post 8 and 9.
  • a decking 10 is fixed to the rails 2, 5 and 7.
  • Inverted U-shaped brackets having bases II and front and rear legs 12 and 13 are fixed to the frame.
  • the front legs 12 are fixed to frame rails 1 and 2 and the rear legs 13 are fixed to frame rails 3, 4 and S.
  • a pair of lugs 14 are fixed to each bracket base 11 with holes 15 therethrough.
  • Platform-suspending cables (not shown) are attachable to the lugs 14 in any suitable manner.
  • tubular casings 16 Fixed to the frame are two tubular casings 16 extending from the front of the platform to beyond the back thereof. Mounted in the casings are electric motors 17 carrying multibladed impellers 18, Mounting plates I9 are adjustably secured to the rails 7 of the frame. Wheels on the plates 19 project beyond the front rail 2 of the platform.
  • the plates 19 and wheels 20 are replaced by bristle-bordered panels 22.
  • the bristles 23 are deformable and combine with the panels 22 to form open front compartments from which air is drawn by the impellers 18.
  • the volume of air reaching the impellers is dependent upon the density of bristles and a condition of negative pressure within the compartments can be obtained.
  • the compartments thus act as suction cups to supplement the air jets in holding the platform against the wall 24.
  • compartments may be formed by the use of bellows-shaped units in which case the use of wheels 20 would be necessary.
  • bristles panels or bellows it would be possible to shape the compartment from edges to accommodate profile features of a wall, e.g., a vertical decorative rib as used on some high rise buildings.
  • end jets on the platform can be used to supplement the jets directed outwardly from the wall.
  • the end jets impinge on the abutments thereby maintaining the platform substantially central between a pair of abutments while the jets from the impellers 18 hold the platform against the wall.
  • balancing jets can be directed onto the wall to act in the same way as the wheels 20.
  • the thrust of the jets acting towards the wall would be regulated so that there is a resultant thrust urging the platform against the wall with the balancing jets maintaining an air cushion between the platform and the wall.
  • a platform for suspension in working relationship to a substantially upright surface comprising a frame, a decking on the frame, attachment means on the frame whereby the platform is suspendible, at least one compartment on the frame having an inlet and an outlet, said inlet being positioned to lie adjacent said surface when said platform is in its working relationship to said surface, air jet means on the frame to create a negative pressure in the compartment by withdrawing air through the outlet thereof and thereby creating an air jet directed away from said surface and surface-engaging means to maintain said platform in said working relationship with said surface.
  • a platform as claimed in claim 1 wherein the air jet means comprises an impeller housed in an open-ended casing communicating with said compartment.
  • a platform as claimed in claim 1 wherein the surface-engaging means comprise air jets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

A suspendible platform comprising a frame with a decking, means on the frame for urging the frame towards a surface to be traversed by the platform and surface-engaging means on the frame.

Description

[451 Jan. 25, 1972 United States Patent Cox m H mm n E M e mm m H N U M U 154] STABILIZED PLATFORM FOR WINDOW CLEANING AND LIKE USES [721 Eric William McLachla 741298 10/1903 Binney......................... armmNew South walesiAustralia 3 464 520 9/1969 Anderson..............................
Mar. 12, 1970 [22] Filed:
Primary Examiner-Reinaldo P. Machado AttorneyEmory L. Groff and Emory L. Groff, Jr.
App]. No.:
[30] Foreign Application Priority Data ABSTRACT Man 25 1969 Ausralianw"WW-u"Wm-m A suspendible platform comprising a frame with a decking,
means on the frame for urging the frame towards a surface to be traversed by the platform and surface-engaging means on the frame.
[52] US. CL...............v..........182/222, 182/142, 182/150 [51] Int. ......i.v....F04g 3/10 182/142, 222,150
Field of Search ................j111111111111 9 Claims, 3 Drawing Figures PATENIED M25 1972 sum 10F 2 $637107 FIG.
STABILIZED PLATFORM FOR WINDOW CLEANING AND LIKE USES This invention relates to workmans platforms of the type suspended from a structure, e.g., a building or tower in a manner enabling the platform to be raised and lowered.
Hitherto it has been common practice to incorporate in building exteriors vertical rails also called mullions, in which wheels on the platform engage thereby preventing undesired movement of the platfonn as might, for example, be caused by wind. Although a stabilized platform is obtained by this means, the rails and their precision fixing to a building in creased the cost of the building considerably.
It is the object of this invention to provide a platform of the above type which does not require rails but which incorporates means which will achieve the desired degree of stability under all conditions. The platform of this invention is usable on all types of structures having substantially upright surfaces, e.g., buildings, walls, chimneys, inclined roofs and skeletal towers.
Basically the invention comprises a platform for suspension in working juxtaposition to a substantially upright surface said platform comprising a frame, a decking on the frame, attachment means on the frame whereby the platform is suspendible, surface engaging means and airjet means on the frame to maintain the frame in the said working juxtaposition with said surface-engaging means operatively engaging said surface.
Two embodiments of the invention are described with reference to the accompanying drawings, in which:
FIG. 1 is a perspective view of one embodiment of the platform;
FIG. 2 is a perspective view of a second embodiment of the platform;
FIG. 3 is a sectional end view on line 33 of FIG. 2 showing the platform in working juxtaposition to a wall.
The platform of FIG. 1 comprises a skeletal frame having upper and lower front rails l and 2, upper intermediate and lower back rails 3, 4 and 5, upper and lower end rails 6 and 7 and short and long corner post 8 and 9. A decking 10 is fixed to the rails 2, 5 and 7. Inverted U-shaped brackets having bases II and front and rear legs 12 and 13 are fixed to the frame. The front legs 12 are fixed to frame rails 1 and 2 and the rear legs 13 are fixed to frame rails 3, 4 and S. A pair of lugs 14 are fixed to each bracket base 11 with holes 15 therethrough.
Platform-suspending cables (not shown) are attachable to the lugs 14 in any suitable manner.
Fixed to the frame are two tubular casings 16 extending from the front of the platform to beyond the back thereof. Mounted in the casings are electric motors 17 carrying multibladed impellers 18, Mounting plates I9 are adjustably secured to the rails 7 of the frame. Wheels on the plates 19 project beyond the front rail 2 of the platform.
Referring to FIG. 2 it will be seen that the plates 19 and wheels 20 are replaced by bristle-bordered panels 22. The bristles 23 are deformable and combine with the panels 22 to form open front compartments from which air is drawn by the impellers 18.
From FIG. 3 it will be seen that with the platform in working relationship with a wall 24 the compartment fronts are covered thereby and the flow of air to the impellers I8 is throttled.
The volume of air reaching the impellers is dependent upon the density of bristles and a condition of negative pressure within the compartments can be obtained. The compartments thus act as suction cups to supplement the air jets in holding the platform against the wall 24.
It is anticipated that in some working conditions with the compartment arrangement the space between the bristles may become choked with dust. To offset this the embodiment of FIG. 2 can be fitted with the wheels 20 of the embodiment of FIG. I. By so doing a constant and regulatable gap between the bristles 23 and the wall 24 can be maintained with a resultant substantially constant degree of negative pressure being maintained within the compartments.
In place of the bristled panels, compartments may be formed by the use of bellows-shaped units in which case the use of wheels 20 would be necessary.
With bristles panels or bellows it would be possible to shape the compartment from edges to accommodate profile features of a wall, e.g., a vertical decorative rib as used on some high rise buildings.
For building walls provided with regularly spaced projecting vertical abutments end jets on the platform can be used to supplement the jets directed outwardly from the wall. The end jets impinge on the abutments thereby maintaining the platform substantially central between a pair of abutments while the jets from the impellers 18 hold the platform against the wall.
It is invisaged that balancing jets can be directed onto the wall to act in the same way as the wheels 20. In this case the thrust of the jets acting towards the wall would be regulated so that there is a resultant thrust urging the platform against the wall with the balancing jets maintaining an air cushion between the platform and the wall.
What is claimed is:
1. A platform for suspension in working relationship to a substantially upright surface, said platform comprising a frame, a decking on the frame, attachment means on the frame whereby the platform is suspendible, at least one compartment on the frame having an inlet and an outlet, said inlet being positioned to lie adjacent said surface when said platform is in its working relationship to said surface, air jet means on the frame to create a negative pressure in the compartment by withdrawing air through the outlet thereof and thereby creating an air jet directed away from said surface and surface-engaging means to maintain said platform in said working relationship with said surface.
2. A platform as claimed in claim 1 wherein the air jet means comprises an impeller housed in an open-ended casing communicating with said compartment.
3. A platform as claimed in claim 2 wherein the impeller is driven by an electric motor.
4. A platform as claimed in claim 1 wherein said surface-engaging means is shaped to correspond with any profile features of said surface.
5. A platform as claimed in claim I wherein said compartment has a deformable surface-engaging border.
6. A platform as claimed in claim 5 wherein the border is a band of bristles.
7. A platform as claimed in claim 5 wherein the border is of bellows shape.
8. A platform as claimed in claim 1 wherein the surface-engaging means are wheels.
9. A platform as claimed in claim 1 wherein the surface-engaging means comprise air jets.

Claims (9)

1. A platform for suspension in working relationship to a substantially upright surface, said platform comprising a frame, a decking on the frame, attachment means on the frame whereby the platform is suspendible at least one compartment on the frame having an inlet and an outlet, said inlet being positioned to lie adjacent said surface when said platform is in its working relationship to said surface, air jet means on the frame to create a negative pressure in the compartment by withdrawing air through the outlet thereof and thereby creating an air jet directed away from said surface and surface-engaging means to maintain said platform in said working relationship with said surface.
2. A platform as claimed in claim 1 wherein the air jet means comprises an impeller housed in an open-ended casing communicating with said compartment.
3. A platform as claimed in claim 2 wherein the impeller is driven by an electric motor.
4. A platform as claimed in claim 1 wherein said surface-engaging means is shaped to correspond with any profile features of said surface.
5. A platform as claimed in claim 1 wherein said compartment has a deformable surface-engaging border.
6. A platform as claimed in claim 5 wherein the border is a band of bristles.
7. A platform as claimed in claim 5 wherein the border is of bellows shape.
8. A platform as claimed in claim 1 wherein the surface-engaging means are wheels.
9. A platform as claimed in claim 1 wherein the surface-engaging means comprise air jets.
US19046A 1969-03-25 1970-03-12 Stabilized platform for window cleaning and like uses Expired - Lifetime US3637047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU52419/69A AU439416B2 (en) 1968-04-01 1969-03-24 Substituted hydroxyphenyl-alkylamines

Publications (1)

Publication Number Publication Date
US3637047A true US3637047A (en) 1972-01-25

Family

ID=3738664

Family Applications (1)

Application Number Title Priority Date Filing Date
US19046A Expired - Lifetime US3637047A (en) 1969-03-25 1970-03-12 Stabilized platform for window cleaning and like uses

Country Status (1)

Country Link
US (1) US3637047A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6282863B1 (en) * 1998-07-02 2001-09-04 Chicago Bridge And Iron Scaffoldless tank erection method
US6935600B1 (en) * 2003-06-26 2005-08-30 Christopher R. Barrepski Suspension holding device and method of use
WO2010055506A1 (en) * 2008-11-16 2010-05-20 Aviram Mann Apparatus and method for continuously cleaning and painting of large surfaces and high walls
US20120325581A1 (en) * 2009-04-02 2012-12-27 Lm Glasfiber A/S Work platform
US20150033640A1 (en) * 2012-04-04 2015-02-05 Cantoni Gruas Y Montajes S.R.L. Process for building a tank and devices for executing the process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US741298A (en) * 1898-08-19 1903-10-13 Harold Binney Apparatus for cleaning and treating ships hulls, &c.
US3464520A (en) * 1967-11-14 1969-09-02 Leonard A Anderson Self-operated elevator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US741298A (en) * 1898-08-19 1903-10-13 Harold Binney Apparatus for cleaning and treating ships hulls, &c.
US3464520A (en) * 1967-11-14 1969-09-02 Leonard A Anderson Self-operated elevator

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6282863B1 (en) * 1998-07-02 2001-09-04 Chicago Bridge And Iron Scaffoldless tank erection method
US6935600B1 (en) * 2003-06-26 2005-08-30 Christopher R. Barrepski Suspension holding device and method of use
WO2010055506A1 (en) * 2008-11-16 2010-05-20 Aviram Mann Apparatus and method for continuously cleaning and painting of large surfaces and high walls
US20110209326A1 (en) * 2008-11-16 2011-09-01 Mann Aviram Apparatus and method for continuously cleaning and painting of large surfaces and high walls
US8695192B2 (en) * 2008-11-16 2014-04-15 Aviram MANN Apparatus and method for continuously cleaning and painting of large surfaces and high walls
US20120325581A1 (en) * 2009-04-02 2012-12-27 Lm Glasfiber A/S Work platform
US9624901B2 (en) * 2009-04-02 2017-04-18 Lm Glasfiber A/S Work platform
US20150033640A1 (en) * 2012-04-04 2015-02-05 Cantoni Gruas Y Montajes S.R.L. Process for building a tank and devices for executing the process
US9133640B2 (en) * 2012-04-04 2015-09-15 Cantoni Gruas Y Montajes S.R.L. Process for building a tank and devices for executing the process

Similar Documents

Publication Publication Date Title
US3637047A (en) Stabilized platform for window cleaning and like uses
US20180055299A1 (en) Semi-automatic system for washing a building
US1941308A (en) Awning
US3566991A (en) Telescoping staging
ES2049107T3 (en) ROTATING FLOOR WITH PIVOTING SUPPORT FOR CORNERS.
CN108060736B (en) NP board integrated ceiling and installation method thereof
CN210993490U (en) Civil engineering construction is with dust suppression device
US2280984A (en) Portable booth
ES337152A1 (en) Ventilation enclosure structure
CN210304672U (en) Photoelectric tube mounting rack with cleaning function
CN211900033U (en) Building construction safety control rail
US1002241A (en) System in waterfall-power utilization.
GB1250131A (en)
CN213159990U (en) Civil engineering is with place dust device
CN216621151U (en) A survey device on spot for architectural design
CN104895222B (en) Finished veneer plate mounts partition wall system
US683013A (en) Seat or stage for window-cleaners or the like.
CN218843689U (en) Engineering construction is used as business layer stair and is faced frontier defense operation platform
GB1439703A (en) Modular walkway bridges
CN214135256U (en) Adjustable ground grinding device for civil engineering
CN211114350U (en) Ceiling with haze absorption and bacteriostasis functions
CN217808178U (en) Interior plaque mounting structure is used in elevator maintenance
CN213038226U (en) Municipal works are with protection structure of making an uproar that falls
CN213979481U (en) Suspension type building curtain
CN214203125U (en) Building engineering management bulletin show board