US3881698A - Safety handrail support - Google Patents

Safety handrail support Download PDF

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US3881698A
US3881698A US481836A US48183674A US3881698A US 3881698 A US3881698 A US 3881698A US 481836 A US481836 A US 481836A US 48183674 A US48183674 A US 48183674A US 3881698 A US3881698 A US 3881698A
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vertical
clamp
secured
hollow
arm
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US481836A
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Jimmy R Marsh
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Jimmy R Marsh
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32Safety or protective measures for persons during the construction of buildings
    • E04G21/3204Safety or protective measures for persons during the construction of buildings against falling down
    • E04G21/3223Means supported by building floors or flat roofs, e.g. safety railings
    • E04G21/3233Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32Safety or protective measures for persons during the construction of buildings
    • E04G21/3204Safety or protective measures for persons during the construction of buildings against falling down
    • E04G21/3223Means supported by building floors or flat roofs, e.g. safety railings
    • E04G21/3233Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof
    • E04G21/3242Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof using clamps

Abstract

A safety guardrail support comprises first and second hollow vertical members, the latter being movably received in the former, a first clamp member secured to the lower end of the first vertical member and a second clamp member secured to the lower end of the second vertical member, upper and lower reinforcing assemblies extending from the lower ends of the first and second hollow vertical members respectively and being slidably engaged at a location spaced from the vertical members and a threaded rod extending interiorly of the first vertical member and threadedly engaging the second vertical member whereby the turning of the threaded rod causes the second clamp member to be raised or lowered in order to secure the apparatus on the open edge of the floor section of a building structure and concomitantly the lower reinforcing assembly slideably engages the upper assembly thereby supporting and reinforcing the support structure.

Description

United States Patent [191 Marsh May 6,1975
SAFETY HANDRAIL SUPPORT [76] Inventor: Jimmy R. Marsh, 1116 Nassau Dr.,
Las Vegas, Nev. 89108 [22] Filed: June 21, 1974 [21] Appl. No.: 481,836
[52] US. Cl. 256/59; 248/226 B; 248/251; 256/DIG. 6 [51] Int. Cl E04h 17/18 [58] Field of Search 248/226 B, 235, 241, 251; 256/59, DIG. 6
Primary Examiner-William l-I. Schultz Attorney, Agent, or Firm,lerry R. Seiler [5 7 ABSTRACT A safety guardrail support comprises first and second hollow vertical members, the latter being movably received in the former, a first clamp member secured to the lower end of the first vertical member and a second clamp member secured to the lower end of the second vertical member, upper and lower reinforcing assemblies extending from the lower ends of the first and second hollow vertical members respectively and being slidably engaged at a location spaced from the vertical members and a threaded rod extending interiorly of the first vertical member and threadedly engaging the second vertical member whereby the turning of the threaded rod causes the second clamp member to be raised or lowered in order to secure the apparatus on the open edge of the floor section of a building structure and concomitantly the lower reinforcing assembly slideably engages the upper assembly thereby supporting and reinforcing the support structure.
SAFETY HANDRAIL SUPPORT BACKGROUND OF THE INVENTION The use of guardrails or handrails, especially during the construction of multi-fioor buildings during the construction stage is especially important. In the initial stages of such construction, where the floors, usually concrete, are in place and before outside wall partitions are assembled, there is significant exposure along the outer floor edges whereby workers could fall off the floors. In order to prevent such accidents, a number of guardrail supports have been proposed, for example, as set forth in U.S. Pat. Nos. 3,351,311, 3,480,357, 3,531,091, 3,584,839, 3,662,993 and French Pat. No. 1,540,643. Although such patents relate to devices for being secured around the edge of such concrete floors and in which guardrails may be placed, they do not offer adequate support where extensive force is urged against them as could occur if a person would fall against the interior of the guardrail, lean heavily against it or where equipment or heavy construction materials are forced against the handrail or support. In the jaw or vice type of guardrail supports as described in the aforesaid US. Pat. Nos. 3,480,257, 3,351,311 and the French patent, clamps or jaws could be spread or sprung apart simply by urging or forcing against the upperwardly extending portion of the supports. It is to the elimination of this disadvantage that the present invention is directed.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a guardrail support for being clamped along an edge of an exposed floor of a building. It is a further object to provide such a device having a reinforcing assembly which offers significant reinforcement to the clamping members of the apparatus. It is a further object to provide a handrail support which can be easily and readily adjusted for being secured on floors of different thicknesses and which can be readily removed. These as well as other objects will be evident from the following detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side elevational view, partially broken away and in section illustrating the handrail support of the invention,
FIG. 2 is an enlarged view of the upper portion of FIG. 1, partially broken away andin section showing the adjustable feature thereof, and
FIG. 3 is a top plan view of the apparatus.
DETAILED DESCRIPTION OF THE INVENTION Referring to FIG. 1, there is shown the handrail support apparatus of the invention having a first hollow vertical member to which brackets 14 and 16 are secured along the exterior length in which a guardrail in the form of a board, slat or pipe may be placed. It will be understood that these guardrail supports will be secured along the edge of a floor such as a concrete floor or the like of a building which is under construction and will be spaced along the edge at distances so that the hand or guardrails will span the distance between adjacent supports. Extending into the interior of the first hollow vertical member 10 is a second hollow vertical member 22 of cross-sectional dimensions smaller than that of the first member so that it can be moved upwardly or downwardly therein without significant friction. Thus, there should be sufficient clearance between the interior surface of the first hollow member and the exterior of the second member so as to avoid frictional engagement therebetween. It will be also appreciated that brackets 14 and 16 for the handrail should be secured to the first vertical member and so that they lie preferably or substantially along a single vertical plane and although two of such brackets are shown, one or more may be used as desired, depending on the number of handrails to be secured therein. If desired, additional brackets may be provided opposite those shown for a double handrail feature in case the interior handrail might become broken or dislodged from the brackets. The brackets can be secured to the vertical member 10 by being welded, bolted or otherwise permanently or substantially fixed.
The second or lower vertical member 22 is also hollow and has a cap 26 at the upper end (FIG. 2) thereof having a threaded orifice for threadedly engaging threaded rod 12. Means for turning the threaded rod such as a nut 18 which is secured to the upper rod and by being welded. The rod can be turned, for example, by using a wrench and turning nut 18 and will thus raise or lower second vertical member 22 because of the threaded engagement with cap 26. At the upper end of the first vertical member 24 is a cap 24 which has an orifice therein of sufficient size to allow rod 12 tobe turned therein and which cap supports nut 18 so that the rod cannot fall into the interior of the hollow vertical member 10. Other means for supporting the rod may be used such as a narrow neck at the upper end of member 10. A washer 20 or equivalent member may also be secured to threaded rod 12 and spaced from nut 18 for the purpose of forcing against the bottom sur face of cap 24 when rod 12 is turned to spread the clamp members apart and also to prevent the rod from being pushed upwardly if lower vertical member 22 is forced upwardly. However, such a feature is optional. Secured at or adjacent the lower end of first vertical member 10 is a first or upper clamp member 21. This first clamp member extends substantially normal to the vertical axis of member 10 so that it will lie substantially horizontally on the horizontal upper surface of a floor and on which the apparatus of the invention is secured. The lower or second clamp member 27 is secured adjacent or at the lower end of the second verti cal member 22 and extends substantially parallel with upper clamp member 21 and accordingly is normal to the vertical axis extending along member 22. These two clamp members act as jaws for clamping onto the edge of a floor as shown. Since the clamps are rigidly secured to the respective vertical members such as by being welded, bolted or even formed of the same stock of material used for the respective vertical members and thus integral therewith, they can be adjusted to tightly force and wedge against the upper and lower floor surfaces. The shape of the clamp members is not particularly critical and they may be tubular or flat,
with the latter being especially preferred at the underside which engages the surface of the floor. Moreover, the length of these clamps is not specifically critical so long as they extend sufficiently so as to provide adequate support.
The reinforcing assembly of the invention which provides improved performance in preventing failure of the clamps when pressure is placed on the upper part of the apparatus comprises the reinforcing arms 11 and 17 together with their engagement with members 13 and 15 as shown in FIG. 1. Accordingly, the reinforcing assembly comprises a first or upper rigid arm 11 which is secured adjacent or at the lower end of first hollow vertical member and preferably extends in line and parallel with upper clamp member 21 but opposite therefrom. Similarly, the second or lower rigid arm 17 secured adjacent or at the lower end of second hollow vertical member 22, in line and parallel but opposite with the lower clamp member 27.
Along the length of the lower rigid arm 17 and preferably adjacent or at the end thereof as shown is attached a vertical reinforcing arm or brace member 15. Thus, arm is secured to rigid arm 17 so that it is normal to and extends substantially vertical and thus is parallel with both hollow vertical member 10 and 22. At the end of upper rigid arm 11 is a hollow tubular sleeve 13 which receives vertical arm 15 so that the arm is slidably received in the sleeve. The crosssectional dimension of arm 15 should be such that the exterior surface thereof does not cause significant frictional engagement with the interior surface of sleeve 13 .which would cause it to bind and not be easily slideable therein. The particular or specific shape of the arms 11 and 17 are not especially critical so long as they are rigid and firmly secured or attached such as by welding or bolting or formed of the same stock as the respective and opposite clamp members. In a preferred embodiment shown, the upper clamp member 21 and upper rigid arm 11 are formed of a single piece, such as a bar, with two of the bars 32 being secured to opposite sides of first vertical member 10 as shown in FIG. 3. Similarly, lower clamp member 27 and lower rigid arm 17 comprise a single bar, two of which are secured to the end of second vertical member 22, one on each side. In addition, hollow tubular sleeve 13 is secured between the ends of the two opposite upper rigid arms 11 and vertical arm 15 is secured between the ends of the two opposite lower rigid arms 17. Thus, it will be evident that the reinforcing assembly gives extensive and critical reinforcing support to the apparatus whereby pressure along the side or near the top of the apparatus such as along the first vertical member 10 will not cause the support to fail by bending lower portion 22a of second vertical member 22. In other words, where such pressure would otherwise cause the clamps to become opened by bending the lower portion 220 of the second vertical member 22 and spring the clamp members apart cannot be accomplished because of the reinforcing assembly. Where such pressure is exerted against the apparatus, the rigid horizontal arms 11 and 17 together with the cooperation of vertical arm 15 and sleeve 13 will receive the force and prevent failure or collapse of the structure and especially at lower portion 22a. Moreover, because the guardrail support comprising the hollow vertical members is doubly reinforced with second member 22 being received in the first member 10, failure of the structure will be avoided except under the most extreme circumstances.
A further feature is a front plate 34 shown in both FIGS. 1 and 3 which is attached by welding or the like across the forward end of the bars comprising upper clamp member 21. This front plate allows a toe board to be secured thereto by a rail extending through orifices in the plate embedded in the board and prevents objects on the concrete floor from accidently being pushed or kicked over the floor edge, the board acting as a stop.
In order to secure the apparatus to the edge of a building floor as shown in FIG. 1, an operator need merely adjust the distance between upper clamp member 21 and lower clamp member 27 so that it will slide over the floor edge. A wrench may be used to turn nut 18 causing rotation of threaded rod 12 which will raise or lower second hollow vertical member 22 within first hollow vertical member 10. By simply turning nut 18, the clamp members can be brought closer together to be clamped against the floor as snugly as desired. At the same time that second hollow vertical member 22 is being raised or lowered, so is vertical arm 15 being raised or lowered within sleeve 13.
It will be appreciated that other means for turning threaded rod 12 may be used such as sleeve secured to the upper end of threaded rod 12 through which a bar or handle can be inserted for turning or rotating the rod. Moreover, the length of second hollow vertical member 22 can be varied to any desired extent so long as it is sufficient to allow the distance between the first and second clamp members to fit and be secured on any thickness of floor desired for the apparatus. However, the longer the second hollow vertical member 22, the more versatility the apparatus will have and also the more support given to the apparatus along vertical member 10. It will also be noted that vertical arm 15 should be substantially the same length as and its upper end is coterminal with second hollow vertical member 22 so that no matter at what extent the clamp members are open, the vertical arm 15 will engage hollow sleeve 13.
Other bracket shapes for securing guardrails or handrails may be used as shown in FIG. 2 with a modified bracket being illustrated. However, the shape of the opening within the bracket is not critical so long as it will accomodate the shape of the handrail or guardrail to be inserted or placed therein. In a specific example of materials used to form the apparatus of the invention, the first hollow vertical member 10 may be of a hollow cylindrical pipe having an id of 1%. inches being of standard steel schedule 40 and approximately 43 inches long. The second hollow vertical member 22 which is received in the first member 10 may be a 1 inch steel standard schedule 40 hollow pipe of approximately 36 inches long. As previously explained, the upper and lower clamp members and upper and lower reinforcing rigid arms may each comprise a pair of fiat steel bars 36 as shown in FIG. 3, 1 /2 inches wide by inch thick and approximately 11 inches long whereas threaded rod 12 may be inch diameter and approximately 36 inches long. However, such specific components can vary depending on the strength requirement desired and is by way of practical example only. These as well as other modifications and embodiments within the purview of the invention will be evident to those skilled in the art.
I claim:
l. A safety guardrail support apparatus comprising:
a first hollow vertical member having means attached thereto for supporting a handrail,
a first clamp member secured to said first vertical member adjacent the lower end thereof,
an upper reinforcing assembly comprising a first rigid arm having one end attached to said first vertical member adjacent the lower end opposite said first clamp member and a sleeve member secured on the other end of said first arm,
a second hollow vertical member movably received in said first vertical member,
a second clamp member secured to said second vertical member adjacent the lower end thereof,
a lower reinforcing assembly comprising a second rigid arm having one end attached to said second vertical member adjacent the lower end thereof 0pposite said second clamp member and a brace member secured on the other end of said second arm and extending through said sleeve of said upper reinforcing assembly, and
a threaded rod extending interiorly along at least the upper portion of said first vertical member and threadedly engaging said second vertical member said second vertical member and second clamp member being raised or lowered when said threaded rod is turned.
2. The apparatus of claim 1 including means for holding the upper end of said threaded rod exposed exteriorly of said first vertical member.
3. The apparatus of claim 1 wherein said first and second clamp members each comprise an elongated bar extending normal to the vertical axis of said first and second vertical members respectively.
4. The apparatus of claim 3 wherein said first and second rigid arms each comprise an elongated bar extending normal to the vertical axis of said first and second vertical members respectively.
5. The apparatus of claim 4 wherein said brace member comprises an elongated rod substantially coterminal with the upper end of said second vertical member.
6. The apparatus of claim 1 wherein said upper clamp member and said first rigid arm comprise a pair of elongated bars each bar oppositely secured to the lower end of said first hollow vertical member and said lower clamp member and said second rigid arm comprise a pair of elongated bars each bar oppositely secured to the lower end of said second hollow vertical member.
7. The apparatus of claim 6 including a front plate secured across the ends of said bars comprising said upper clamp member.

Claims (7)

1. A safety guardrail support apparatus comprising: a first hollow vertical member having means attached thereto for supporting a handrail, a first clamp member secured to said first vertical member adjacent the lower end thereof, an upper reinforcing assembly comprising a first rigid arm having one end attached to said first vertical member adjacent the lower end opposite said first clamp member and a sleeve member secured on the other end of said first arm, a second hollow vertical member movably received in said first vertical member, a second clamp member secured to said second vertical member adjacent the lower end thereof, a lower reinforcing assembly comprising a second rigid arm having one end attached to said second vertical member adjacent the lower end thereof opposite said second clamp member and a brace member secured on the other end of said second arm and extending through said sleeve of said upper reinforcing assembly, and a threaded rod extending interiorly along at least the upper portion of said first vertical member and threadedly engaging said second vertical member said second vertical member and second clamp membEr being raised or lowered when said threaded rod is turned.
2. The apparatus of claim 1 including means for holding the upper end of said threaded rod exposed exteriorly of said first vertical member.
3. The apparatus of claim 1 wherein said first and second clamp members each comprise an elongated bar extending normal to the vertical axis of said first and second vertical members respectively.
4. The apparatus of claim 3 wherein said first and second rigid arms each comprise an elongated bar extending normal to the vertical axis of said first and second vertical members respectively.
5. The apparatus of claim 4 wherein said brace member comprises an elongated rod substantially co-terminal with the upper end of said second vertical member.
6. The apparatus of claim 1 wherein said upper clamp member and said first rigid arm comprise a pair of elongated bars each bar oppositely secured to the lower end of said first hollow vertical member and said lower clamp member and said second rigid arm comprise a pair of elongated bars each bar oppositely secured to the lower end of said second hollow vertical member.
7. The apparatus of claim 6 including a front plate secured across the ends of said bars comprising said upper clamp member.
US481836A 1974-06-21 1974-06-21 Safety handrail support Expired - Lifetime US3881698A (en)

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Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995833A (en) * 1975-07-23 1976-12-07 Jack McLaughlin Removable guard rail stanchion apparatus
US4130262A (en) * 1976-10-04 1978-12-19 Burroughs Corporation Adjustably interfitting panel clamp
US4231538A (en) * 1977-10-12 1980-11-04 Microform Communications Limited Clamping devices
US4644329A (en) * 1984-03-27 1987-02-17 Butler Manufacturing Company Edge of roof perimeter workman safety light device
US4669577A (en) * 1986-07-21 1987-06-02 Saf-T-Green Manufacturing Corporation Slab clamp guard rail post
US5314167A (en) * 1993-01-08 1994-05-24 James N. Mitchell Temporary rail structure for a floor
US5456451A (en) * 1993-07-30 1995-10-10 Eyler, Jr.; Charles W. Safety railing post and brackets therefor
US5507434A (en) * 1994-06-16 1996-04-16 Harmon Industries, Inc. Clamp mount for concrete ties
US6453495B1 (en) * 1999-08-31 2002-09-24 Kansas Department Of Transportation Clamping device for deck panels with support saddles
US6679482B2 (en) 2001-09-05 2004-01-20 Al Plank & Scaffold Mfg., Inc. Construction perimeter guard
US20040154241A1 (en) * 2003-02-06 2004-08-12 The Bilco Company Roof scuttle safety railing system
US20040163889A1 (en) * 2001-03-27 2004-08-26 Harry Wallther Device for human protection in scaffolding
US6902152B1 (en) * 2002-07-12 2005-06-07 Jeffory Neil Clifford Adjustable fence rail supporting and positioning assembly and method for using the assembly
US20060010673A1 (en) * 2004-07-13 2006-01-19 Rainer Kuenzel Clamping apparatus and apparatus for use in erecting temporary guard rails
ES2264354A1 (en) * 2004-10-28 2006-12-16 Alvaro Mesaguer Matamoros Safety rail for construction works has nut that is vertically displaceable inside vertical wing to adjust upper and lower restraints against upper and lower faces of surface
US7228938B1 (en) * 2004-11-18 2007-06-12 Mitchell Kenneth W Outrigger assembly for supporting a platform adjacent a work area
US20070246299A1 (en) * 2006-03-31 2007-10-25 Wright James E Safety barrier stanchion
WO2008068483A2 (en) * 2006-12-05 2008-06-12 Gordon Smith Safety system
US20090183354A1 (en) * 2007-01-29 2009-07-23 Mcginness William G Compression Post Mount
US20100103547A1 (en) * 2008-08-21 2010-04-29 Abbott Albert J Trailer hitch mounted adjustable mirror
US20110017968A1 (en) * 2009-07-24 2011-01-27 Christoffer Alfred C Metal safety rail for open floors of a building under construction
WO2011076559A1 (en) 2009-12-23 2011-06-30 Neil Davies Protective rail support
US8056237B1 (en) 2008-01-16 2011-11-15 OuiCanDuit, LLC Guardrail stanchion and system
US20130236246A1 (en) * 2012-03-12 2013-09-12 Oxford Plastic Systems Limited Barrier
US20140217346A1 (en) * 2013-02-04 2014-08-07 Steve CULLEN Support for a roof hatch rail
KR200477671Y1 (en) * 2014-10-15 2015-07-07 주식회사 한길이엔지 Safety balustrade easy to installation
JP2015161120A (en) * 2014-02-27 2015-09-07 パナホーム株式会社 Lateral handrail wall fitting structure of balcony
US9624681B2 (en) 2011-11-14 2017-04-18 OuiCanDuit, LLC Guardrail stanchion and system
US9631371B2 (en) * 2014-12-08 2017-04-25 Australian Ramp Systems Pty Limited Modular and collapsible ramp system
US20170328070A1 (en) * 2016-05-16 2017-11-16 Kirby Alan Lane Core assembly for anchoring and supporting
US20180266141A1 (en) * 2017-03-16 2018-09-20 Hector Van Lennep Railing System With Concealed Anchor System
WO2020249468A1 (en) * 2019-06-14 2020-12-17 Basf Se Support post and modular quick-clamp railing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3406946A (en) * 1967-01-30 1968-10-22 Robert H. Saultz Safety rail for concrete building
US3747898A (en) * 1972-04-19 1973-07-24 W Warren Guard rail post
US3841609A (en) * 1972-03-17 1974-10-15 M Smith Perimeter guard rail system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3406946A (en) * 1967-01-30 1968-10-22 Robert H. Saultz Safety rail for concrete building
US3841609A (en) * 1972-03-17 1974-10-15 M Smith Perimeter guard rail system
US3747898A (en) * 1972-04-19 1973-07-24 W Warren Guard rail post

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995833A (en) * 1975-07-23 1976-12-07 Jack McLaughlin Removable guard rail stanchion apparatus
US4130262A (en) * 1976-10-04 1978-12-19 Burroughs Corporation Adjustably interfitting panel clamp
US4231538A (en) * 1977-10-12 1980-11-04 Microform Communications Limited Clamping devices
US4644329A (en) * 1984-03-27 1987-02-17 Butler Manufacturing Company Edge of roof perimeter workman safety light device
US4669577A (en) * 1986-07-21 1987-06-02 Saf-T-Green Manufacturing Corporation Slab clamp guard rail post
US5314167A (en) * 1993-01-08 1994-05-24 James N. Mitchell Temporary rail structure for a floor
US5456451A (en) * 1993-07-30 1995-10-10 Eyler, Jr.; Charles W. Safety railing post and brackets therefor
US5507434A (en) * 1994-06-16 1996-04-16 Harmon Industries, Inc. Clamp mount for concrete ties
US6453495B1 (en) * 1999-08-31 2002-09-24 Kansas Department Of Transportation Clamping device for deck panels with support saddles
US20040163889A1 (en) * 2001-03-27 2004-08-26 Harry Wallther Device for human protection in scaffolding
US7954598B2 (en) * 2001-03-27 2011-06-07 Pluseight Safety Ab Device for human protection in scaffolding
US6679482B2 (en) 2001-09-05 2004-01-20 Al Plank & Scaffold Mfg., Inc. Construction perimeter guard
US6902152B1 (en) * 2002-07-12 2005-06-07 Jeffory Neil Clifford Adjustable fence rail supporting and positioning assembly and method for using the assembly
US20040154241A1 (en) * 2003-02-06 2004-08-12 The Bilco Company Roof scuttle safety railing system
US6931793B2 (en) * 2003-02-06 2005-08-23 The Bilco Company Roof scuttle safety railing system
US20060010673A1 (en) * 2004-07-13 2006-01-19 Rainer Kuenzel Clamping apparatus and apparatus for use in erecting temporary guard rails
US7234689B2 (en) * 2004-07-13 2007-06-26 Safety Maker, Inc. Clamping apparatus and apparatus for use in erecting temporary guard rails
US7284746B2 (en) * 2004-07-13 2007-10-23 Safety Maker, Inc. Clamping apparatus and apparatus for use in erecting temporary guard rails
US20060010672A1 (en) * 2004-07-13 2006-01-19 Rainer Kuenzel Clamping apparatus and apparatus for use in erecting temporary guard rails
ES2264354A1 (en) * 2004-10-28 2006-12-16 Alvaro Mesaguer Matamoros Safety rail for construction works has nut that is vertically displaceable inside vertical wing to adjust upper and lower restraints against upper and lower faces of surface
US7228938B1 (en) * 2004-11-18 2007-06-12 Mitchell Kenneth W Outrigger assembly for supporting a platform adjacent a work area
US20070246299A1 (en) * 2006-03-31 2007-10-25 Wright James E Safety barrier stanchion
GB2456995B (en) * 2006-12-05 2011-01-12 Gordon Smith Safety system
WO2008068483A2 (en) * 2006-12-05 2008-06-12 Gordon Smith Safety system
GB2456995A (en) * 2006-12-05 2009-08-05 Gordon Smith Safety system
WO2008068483A3 (en) * 2006-12-05 2008-10-02 Gordon Smith Safety system
US7802351B2 (en) * 2007-01-29 2010-09-28 Homeland Vinyl Products, Inc. Compression post mount
US20090183354A1 (en) * 2007-01-29 2009-07-23 Mcginness William G Compression Post Mount
US8056237B1 (en) 2008-01-16 2011-11-15 OuiCanDuit, LLC Guardrail stanchion and system
US20100103547A1 (en) * 2008-08-21 2010-04-29 Abbott Albert J Trailer hitch mounted adjustable mirror
US20110017968A1 (en) * 2009-07-24 2011-01-27 Christoffer Alfred C Metal safety rail for open floors of a building under construction
US8424851B2 (en) * 2009-07-24 2013-04-23 Alfred C. Christoffer Metal safety rail for open floors of a building under construction
WO2011076559A1 (en) 2009-12-23 2011-06-30 Neil Davies Protective rail support
US9624681B2 (en) 2011-11-14 2017-04-18 OuiCanDuit, LLC Guardrail stanchion and system
US8979418B2 (en) * 2012-03-12 2015-03-17 Oxford Plastic Systems Limited Barrier
US20130236246A1 (en) * 2012-03-12 2013-09-12 Oxford Plastic Systems Limited Barrier
US20140217346A1 (en) * 2013-02-04 2014-08-07 Steve CULLEN Support for a roof hatch rail
JP2015161120A (en) * 2014-02-27 2015-09-07 パナホーム株式会社 Lateral handrail wall fitting structure of balcony
KR200477671Y1 (en) * 2014-10-15 2015-07-07 주식회사 한길이엔지 Safety balustrade easy to installation
US9631371B2 (en) * 2014-12-08 2017-04-25 Australian Ramp Systems Pty Limited Modular and collapsible ramp system
US20170328070A1 (en) * 2016-05-16 2017-11-16 Kirby Alan Lane Core assembly for anchoring and supporting
US20180266141A1 (en) * 2017-03-16 2018-09-20 Hector Van Lennep Railing System With Concealed Anchor System
US10689857B2 (en) * 2017-03-16 2020-06-23 Hector Van Lennep Railing system with concealed anchor system
WO2020249468A1 (en) * 2019-06-14 2020-12-17 Basf Se Support post and modular quick-clamp railing

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