US2573086A - Scaffold bracket - Google Patents

Scaffold bracket Download PDF

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Publication number
US2573086A
US2573086A US106807A US10680749A US2573086A US 2573086 A US2573086 A US 2573086A US 106807 A US106807 A US 106807A US 10680749 A US10680749 A US 10680749A US 2573086 A US2573086 A US 2573086A
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vertical
horizontal
horizontal member
bracket
vertical member
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US106807A
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Sr Watson T Yoshimoto
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    • 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
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/002—Workplatforms, railings; Arrangements for pouring concrete, attached to the form

Definitions

  • My invention relates to improved scaffold brackets, especially but not exclusively, for use on concrete wall forms, the primary object of the invention being to provide, in brackets of this kind, means for mounting thebrackets on horizontal Wales of the concrete wall forms in such manner thatboth 'sidewise rocking movement and vertical rocking movement of the brackets relative to the forms under service conditions are precluded, whereby the safety and efficiency of the. resulting scaffolding .is greatly increased.
  • Another important object of the invention is the provision of scaffold brackets of the above indicated character which have relatively great strength and rigidity along with light weight and compactness, and which can be easily manufactured'in a serviceable and attractive form at relatively low cost.
  • Another important object of the invention is to provide scaffold brackets of the character indicated above which include means for efficient use of rope or other flexible guard rails, which are safer and more satisfactory than rigid wood or metal guard rails.
  • Figure 1 is a fragmentary perspective view showing a single scaffold bracket applied to a concrete wall form having two :adjacent horizontal wales, with the rope guard rails shown in dotted lines.
  • Figure 21 s a top plan view of a sca fold bracket.
  • Figure 3 is a side elevation thereof.
  • Figure 4 is aside elevation ofa guard rail post.
  • Figure 5 is afront elevation thereof.
  • Figure 6 is a view similar to Figure 1. showing another embodiment of scaffold bracket .for use with a concrete wallform having a single .horizontal Wale.
  • Figure 7 is a top plan view of the spacer block used with the bracket shown in Figure 6, and
  • Figure 8 is a side elevation of the spacer'block.
  • the nu- -meral I I] generally designates a concrete wall form side member composed of horizontal planks or boards H with laterally spaced vertical studs [2 secured to the outer side thereof, and with vertically spaced horizontal wales I3, l3 secured on the outer edges of the studs, in a generally conventional arrangement.
  • My novel scafiold 2 bracket generally designated '15 and "shown in Figures 1 to 5, consists of a generally right triangular form preferably made of light-weight adequately strong metal tubing with the components fullewel'ded together.
  • the bracket l5 comprises the vertical member I6, long enough to morethan reach vertically across two adjacent horizontal wales .!:3, IS, the horizontal member I?
  • the horizontal member i'i being welded to the upper end'of the vertical member IE5 at a point near the inward end thereof, as indicated at IS.
  • a diagonal brace 20 is welded to the lower part of thevertical member 55 at 2
  • Thepost ofthe'vertical member it below th weld 2! is provided with one or more holes 23.
  • the anchor element 25 andwsocket 2.? and the vertical member l6 are parallel and are preferably .arrangedin the same vertical plane.
  • bracket 15 An important feature of the bracket 15 is the inverted horizontal metal channel 28 which is positioned against the underside of the horizontal member i! in the space between the vertical member L5 and the depending part of the anchor element 25 and. weldedin place, at right angles to the vertical and horizontal members.
  • the channel 28 extends equally at opposite sides of the horizontal member ll, as shown in Figure 2, and is just wide enough to .snugly receive the upper wale 1.3 between its depending side flanges and 30. with its web 3l resting upon the top of the wale: and with the lower part of the vertical member I6 resting against the outer face of the subiacent wale l3, as shown in Figure l.
  • the arrangement is such that when the bracket I5 is installed it is self-positioning in the correct oerpend'icular and parallel relationship to the form
  • the channel web 3! and the side flanges thereof are provided with holes 32 and 33, respectively. to accommodate preferably duplex head nails 34 to secure the channel in proper engagement with the upper wale [3.
  • a similar nail may be used in the hole 23 to secure the lower part of the vertical member to the face of the subjacent wale l3, if desired.
  • the socket 21 is provided with one or more and securely mounted in correct position in the socket 21, at different heights. In its most depressed position the shoulder 40 at the upper end of the portion 38 rests upon the upper end of the socket 21 for additional support.
  • the upper end of the post 31 has a transversely arranged upstanding loop or eye 41 to accommodate an upper flexible guard rope 42 and a lower loop or eye 43 is secured on the outward side of the post to accommodate a lower guard rope M, as shown in Figure 1.
  • the spacer block 50 comprises a, truncated isosceles triangular form of fiat uniform width rigid metal bar on strip, having the base side 51 thereof indented, as indicated at 52, to provide two feet 53 at the ends thereof.
  • the converging ends of the sides 54, 54 of the triangular form are prolonged in parallelism as indicated at 55, 55 and are rigidly connected together by a bridge part 56 containing a hole to accommodate the assembling bolt 51.
  • the prolongations 55 are spaced to snugly receive the lower part of the vertical bracket member [6 therebetween, and the bolt 51 is arranged to pass outwardly through the hole 23 in the vertical member I6a. and receive a wing nut 58 on its outer end to clamp the spacer block on and in proper relation to the bracket l with the feet 53 engaging flush with the form planks H, as
  • brackets as desired may be used at the desired distances from each other along the concrete form when erecting or stripping the form.
  • a scaffold bracket comprising a right triangular frame comprising a horizontal platform plank supporting member and a vertical member depending from said horizontal member at a point spaced from the inner end of said horizontal member, a horizontal inverted channel secured to said horizontal member at a point between said vertical member and the inner end of said horizontal member, abutment means on the lower end of said vertical member comprising a spacer block positioned at the inward side of said vertical member, and means removably securing said spacer block in place on said vertical member, said spacer block comprising an open form having laterally spaced prolongations receiving the vertical member therebetween, a bridge part connecting said prolongations having a bolt extending therefrom between said prolongations and removably passing through a hole provided in said vertical member, and a nut on said bolt bearing against the outward side of said vertical member and securing said 4 spacer block to extend horizontally from said vertical member.
  • a, triangular frame comprising a horizontal member having inner and outer ends, a vertical member depending from said horizontal member at a point spaced from the inner end of the horizontal member, and a downwardly facing channel member secured crosswise to the underside of said horizontal member at a point between the inner end of the horizontal member and said vertical member, said horizontal member having a vertically extending anchor member on its inner end, said anchor member having a lower portion depending along the inward side of said channel member, said anchor member having an upper portion rising above said horizontal member and said horizontal member having a vertical element on its outer end rising thereabove, said upper portion of the anchor member and said vertical element serving as inner and outer stops for planks placed upon said horizontal member therebetween.
  • a triangular frame comprising a horizontal member having inner and outer ends, a vertical member depending from said horizontal member at a point spaced from the inner end of the horizontal member. and a downwardly facing channel member secured crosswise to the underside of said horizontal member at a point between the inner end of the horizontal member and said vertical member, said horizontal member having a vertically extending anchor member on its inner end, said anchor member having a lower portion depend ing along the inward side of said channel member, said anchor member having an upper portion rising above said horizontal member and said horizontal member having a vertical element on its outer end rising thereabove, said upper portion of the anchor member and said vertical element serving as inner and outer stops for planks placed upon said horizontal member therebetween, said vertical element being tubular for reception of a guard rail post.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Description

w. T. YOSHIMOTO, SR 2,573,086
Oct. 30, I951 SCAFFOLD BRACKET 2 SHEETS-QSHEET 1 Filed July 26, 1949 Q 4 w M/ mm a 4 1/ W [1 x W Y 1 v .1. U My W V m B 0 A I W W F/G. z.
Patented Oct. 30, 1951 SOAFFOLD BRACKET Watson T. Yoshimoto, Sn, Honolulu, Territory of Hawaii Application July 26, 1949, SerialNo. 106,807
3 Claims.
1 My invention relates to improved scaffold brackets, especially but not exclusively, for use on concrete wall forms, the primary object of the invention being to provide, in brackets of this kind, means for mounting thebrackets on horizontal Wales of the concrete wall forms in such manner thatboth 'sidewise rocking movement and vertical rocking movement of the brackets relative to the forms under service conditions are precluded, whereby the safety and efficiency of the. resulting scaffolding .is greatly increased.
Another important object of the invention is the provision of scaffold brackets of the above indicated character which have relatively great strength and rigidity along with light weight and compactness, and which can be easily manufactured'in a serviceable and attractive form at relatively low cost.
Another important object of the invention is to provide scaffold brackets of the character indicated above which include means for efficient use of rope or other flexible guard rails, which are safer and more satisfactory than rigid wood or metal guard rails.
Other important objects and advantageous features of my invention will be apparent from the following description and accompanying drawings, wherein for present purposes of illustration only, specific embodiments of the invention are set forth in detail.
In the drawings:
Figure 1 is a fragmentary perspective view showing a single scaffold bracket applied to a concrete wall form having two :adjacent horizontal wales, with the rope guard rails shown in dotted lines.
Figure 21s a top plan view of a sca fold bracket.
Figure 3 is a side elevation thereof.
.Figure 4 is aside elevation ofa guard rail post.
Figure 5 is afront elevation thereof.
Figure 6 is a view similar to Figure 1. showing another embodiment of scaffold bracket .for use with a concrete wallform having a single .horizontal Wale.
Figure 7 is a top plan view of the spacer block used with the bracket shown in Figure 6, and
Figure 8 is a side elevation of the spacer'block.
Referring to the drawings in detail, the nu- -meral I I] generally designates a concrete wall form side member composed of horizontal planks or boards H with laterally spaced vertical studs [2 secured to the outer side thereof, and with vertically spaced horizontal wales I3, l3 secured on the outer edges of the studs, in a generally conventional arrangement. My novel scafiold 2 bracket, generally designated '15 and "shown in Figures 1 to 5, consists of a generally right triangular form preferably made of light-weight adequately strong metal tubing with the components fullewel'ded together. The bracket l5 comprises the vertical member I6, long enough to morethan reach vertically across two adjacent horizontal wales .!:3, IS, the horizontal member I? long enough to reachfrom a point behind a Wale l3 to the proper distance away from the side of the wall form Hlto support thereonthe desired width of platform forming planks IS. The horizontal member i'i being welded to the upper end'of the vertical member IE5 at a point near the inward end thereof, as indicated at IS. A diagonal brace 20 is welded to the lower part of thevertical member 55 at 2| and to an duter part of the horizontalmember I! at 22. Thepost ofthe'vertical member it below th weld 2! is provided with one or more holes 23. The inward end of the horizontal member i! has welded thereto at 26 a short vertical anchor .element25 and welded at 2'5 to the outward end of the horizontal member I3 is a vertical guard rail post mounting socket 27. The anchor element 25 andwsocket 2.? and the vertical member l6 are parallel and are preferably .arrangedin the same vertical plane.
An important feature of the bracket 15 is the inverted horizontal metal channel 28 which is positioned against the underside of the horizontal member i! in the space between the vertical member L5 and the depending part of the anchor element 25 and. weldedin place, at right angles to the vertical and horizontal members. The channel 28 extends equally at opposite sides of the horizontal member ll, as shown in Figure 2, and is just wide enough to .snugly receive the upper wale 1.3 between its depending side flanges and 30. with its web 3l resting upon the top of the wale: and with the lower part of the vertical member I6 resting against the outer face of the subiacent wale l3, as shown in Figure l. The arrangement is such that when the bracket I5 is installed it is self-positioning in the correct oerpend'icular and parallel relationship to the form The channel web 3! and the side flanges thereof are provided with holes 32 and 33, respectively. to accommodate preferably duplex head nails 34 to secure the channel in proper engagement with the upper wale [3. A similar nail may be used in the hole 23 to secure the lower part of the vertical member to the face of the subjacent wale l3, if desired.
The socket 21 is provided with one or more and securely mounted in correct position in the socket 21, at different heights. In its most depressed position the shoulder 40 at the upper end of the portion 38 rests upon the upper end of the socket 21 for additional support.
The upper end of the post 31 has a transversely arranged upstanding loop or eye 41 to accommodate an upper flexible guard rope 42 and a lower loop or eye 43 is secured on the outward side of the post to accommodate a lower guard rope M, as shown in Figure 1.
The spacer block 50 comprises a, truncated isosceles triangular form of fiat uniform width rigid metal bar on strip, having the base side 51 thereof indented, as indicated at 52, to provide two feet 53 at the ends thereof. The converging ends of the sides 54, 54 of the triangular form are prolonged in parallelism as indicated at 55, 55 and are rigidly connected together by a bridge part 56 containing a hole to accommodate the assembling bolt 51. The prolongations 55 are spaced to snugly receive the lower part of the vertical bracket member [6 therebetween, and the bolt 51 is arranged to pass outwardly through the hole 23 in the vertical member I6a. and receive a wing nut 58 on its outer end to clamp the spacer block on and in proper relation to the bracket l with the feet 53 engaging flush with the form planks H, as
shown in Figure 6.
It will be understood that as many of the above described brackets as desired may be used at the desired distances from each other along the concrete form when erecting or stripping the form.
What I claim is:
l. A scaffold bracket comprising a right triangular frame comprising a horizontal platform plank supporting member and a vertical member depending from said horizontal member at a point spaced from the inner end of said horizontal member, a horizontal inverted channel secured to said horizontal member at a point between said vertical member and the inner end of said horizontal member, abutment means on the lower end of said vertical member comprising a spacer block positioned at the inward side of said vertical member, and means removably securing said spacer block in place on said vertical member, said spacer block comprising an open form having laterally spaced prolongations receiving the vertical member therebetween, a bridge part connecting said prolongations having a bolt extending therefrom between said prolongations and removably passing through a hole provided in said vertical member, and a nut on said bolt bearing against the outward side of said vertical member and securing said 4 spacer block to extend horizontally from said vertical member.
2. In a scaffold bracket, a, triangular frame comprising a horizontal member having inner and outer ends, a vertical member depending from said horizontal member at a point spaced from the inner end of the horizontal member, and a downwardly facing channel member secured crosswise to the underside of said horizontal member at a point between the inner end of the horizontal member and said vertical member, said horizontal member having a vertically extending anchor member on its inner end, said anchor member having a lower portion depending along the inward side of said channel member, said anchor member having an upper portion rising above said horizontal member and said horizontal member having a vertical element on its outer end rising thereabove, said upper portion of the anchor member and said vertical element serving as inner and outer stops for planks placed upon said horizontal member therebetween.
3. In a scaffold bracket, a triangular frame comprising a horizontal member having inner and outer ends, a vertical member depending from said horizontal member at a point spaced from the inner end of the horizontal member. and a downwardly facing channel member secured crosswise to the underside of said horizontal member at a point between the inner end of the horizontal member and said vertical member, said horizontal member having a vertically extending anchor member on its inner end, said anchor member having a lower portion depend ing along the inward side of said channel member, said anchor member having an upper portion rising above said horizontal member and said horizontal member having a vertical element on its outer end rising thereabove, said upper portion of the anchor member and said vertical element serving as inner and outer stops for planks placed upon said horizontal member therebetween, said vertical element being tubular for reception of a guard rail post.
WATSON T. YOSI-IIMOTO, SR.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 474,406 Ramsey May 10, 189 510,194 Sellers Dec. 5, 1893 740,452 Michael Oct. 6, 1903 1,086,348 Bolognesi Feb. 10, 1914 1,449,638 Tresters Mar. 27, 1923 2,261,907 Uecker Nov. 4, 1941 2,264,498 Alloway Dec. 2, 1941 2,295,995 Lamb Sept. 15, 942 2,302,344 OHara Nov. 17, 1942 2,488,984 Pennington Nov. 22, 1949 FOREIGN PATENTS Number Country Date 639,946 France July 2, 19 8
US106807A 1949-07-26 1949-07-26 Scaffold bracket Expired - Lifetime US2573086A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2721054A (en) * 1953-02-03 1955-10-18 Clifford L Lutton Materials hoist
US2805902A (en) * 1952-12-29 1957-09-10 Universal Form Clamp Co Scaffold
US2833503A (en) * 1955-04-18 1958-05-06 Lynn B Harshbarger Platform support apparatus
US3044573A (en) * 1960-03-28 1962-07-17 James H Jackson Scaffold bracket
US3158225A (en) * 1962-08-08 1964-11-24 Carl W Almgren Scaffold bracket
US3165288A (en) * 1962-10-02 1965-01-12 James H Jackson Scaffold bracket with spacers
US3660871A (en) * 1970-08-26 1972-05-09 Unitec Ind Inc Universal beam clamp
US3752262A (en) * 1972-06-01 1973-08-14 B Helms Scaffold guard rail assembly
US4179090A (en) * 1977-05-26 1979-12-18 Raymond Foskett Scaffolding
US5535974A (en) * 1994-03-07 1996-07-16 Savitski; Richard H. Scaffold bracket
ES2302479A1 (en) * 2007-12-19 2008-07-01 Sistemas Tecnicos De Encofrados S.A. Safety panel for shuttering wall, has safety framework with strengthened support with faceplate crosspieces of flat shuttering, where crosspieces are equipped with multiple transverse removable planes
US20090020363A1 (en) * 2007-07-18 2009-01-22 Northland Concrete & Masonry Scaffolding fall protection system
US8827231B1 (en) * 2011-03-09 2014-09-09 Donald H. Blair Stanchion for anchoring exercise apparatus

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US474406A (en) * 1892-05-10 Scaffold-bracket
US510194A (en) * 1893-12-05 Bracket
US740452A (en) * 1903-06-22 1903-10-06 William Michael Scaffold-bracket.
US1086348A (en) * 1912-09-24 1914-02-10 Achille Bacilieri Scaffolding.
US1449638A (en) * 1920-05-20 1923-03-27 Metal Forms Corp Scaffold bracket
FR639946A (en) * 1927-08-24 1928-07-02 Ladder cleat
US2261907A (en) * 1939-06-23 1941-11-04 Safway Steel Scaffolds Co Of W Scaffold bracket
US2264498A (en) * 1941-07-05 1941-12-02 Alloway Guy Scaffold bracket
US2295995A (en) * 1940-04-17 1942-09-15 Safety Scaffold Corp Safety scaffold
US2302344A (en) * 1942-07-09 1942-11-17 O'hara William Patrick Window jack
US2488984A (en) * 1947-05-16 1949-11-22 Fern R Pennington Ladder bracket

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US474406A (en) * 1892-05-10 Scaffold-bracket
US510194A (en) * 1893-12-05 Bracket
US740452A (en) * 1903-06-22 1903-10-06 William Michael Scaffold-bracket.
US1086348A (en) * 1912-09-24 1914-02-10 Achille Bacilieri Scaffolding.
US1449638A (en) * 1920-05-20 1923-03-27 Metal Forms Corp Scaffold bracket
FR639946A (en) * 1927-08-24 1928-07-02 Ladder cleat
US2261907A (en) * 1939-06-23 1941-11-04 Safway Steel Scaffolds Co Of W Scaffold bracket
US2295995A (en) * 1940-04-17 1942-09-15 Safety Scaffold Corp Safety scaffold
US2264498A (en) * 1941-07-05 1941-12-02 Alloway Guy Scaffold bracket
US2302344A (en) * 1942-07-09 1942-11-17 O'hara William Patrick Window jack
US2488984A (en) * 1947-05-16 1949-11-22 Fern R Pennington Ladder bracket

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805902A (en) * 1952-12-29 1957-09-10 Universal Form Clamp Co Scaffold
US2721054A (en) * 1953-02-03 1955-10-18 Clifford L Lutton Materials hoist
US2833503A (en) * 1955-04-18 1958-05-06 Lynn B Harshbarger Platform support apparatus
US3044573A (en) * 1960-03-28 1962-07-17 James H Jackson Scaffold bracket
US3158225A (en) * 1962-08-08 1964-11-24 Carl W Almgren Scaffold bracket
US3165288A (en) * 1962-10-02 1965-01-12 James H Jackson Scaffold bracket with spacers
US3660871A (en) * 1970-08-26 1972-05-09 Unitec Ind Inc Universal beam clamp
US3752262A (en) * 1972-06-01 1973-08-14 B Helms Scaffold guard rail assembly
US4179090A (en) * 1977-05-26 1979-12-18 Raymond Foskett Scaffolding
US5535974A (en) * 1994-03-07 1996-07-16 Savitski; Richard H. Scaffold bracket
US20090020363A1 (en) * 2007-07-18 2009-01-22 Northland Concrete & Masonry Scaffolding fall protection system
ES2302479A1 (en) * 2007-12-19 2008-07-01 Sistemas Tecnicos De Encofrados S.A. Safety panel for shuttering wall, has safety framework with strengthened support with faceplate crosspieces of flat shuttering, where crosspieces are equipped with multiple transverse removable planes
US8827231B1 (en) * 2011-03-09 2014-09-09 Donald H. Blair Stanchion for anchoring exercise apparatus

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