US3606232A - Adjustable head for a formwork prop - Google Patents

Adjustable head for a formwork prop Download PDF

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Publication number
US3606232A
US3606232A US772162A US3606232DA US3606232A US 3606232 A US3606232 A US 3606232A US 772162 A US772162 A US 772162A US 3606232D A US3606232D A US 3606232DA US 3606232 A US3606232 A US 3606232A
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United States
Prior art keywords
prop
formwork
adjustable head
flange
plate
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Expired - Lifetime
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US772162A
Inventor
George B A Young
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Rapid Metal Developments Ltd
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Rapid Metal Developments Ltd
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Publication date
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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
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • 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
    • E04G25/00—Shores or struts; Chocks

Definitions

  • An adjustable head for a formwork prop for use in the casting of concrete slabs comprises a body in screwthreaded engagement with a member for rotatable engagement with the upper end of the prop.
  • the body includes a channel one side of which can be pivoted to a position clear of the web of the channel to permit removal of a beam supported thereby.
  • This invention relates to an adjustable head for a formwork prop for use in the casting of concrete slabs.
  • a head in accordance with the invention comprises a body in screw-threaded engagement with a member adapted for rotatable engagement with the upper end of the prop, said body including a portion of channel shaped configuration to receive and support a beam, and one side of said channel being mounted for pivotal displacement to a position such that the beam can be removed by lateral displacement thereof relative to the body.
  • FIGS 1 and 2 are mutually perpendicular elevations of the head.
  • the head comprises a body consisting of a length of tube 11 secured to a bent metal plate 12.
  • the end of the tube remote from the plate 12 is reduced and internally threaded.
  • the plate 12 has a web portion 13, an upstanding flange 14 at one edge of the web portion 13 and a narrower depending flange 15 at the other edge of the web portion 13.
  • a further plate 16 is attached to the flange 15 of the plate 12 and is cooperable with the flange 14 to provide a channel for receiving a wooden beam.
  • the plate 16 is formed at one end with a notch 17 and with an elongated slot 18 aligned with the notch 17.
  • a rivet 19 on the flange 15 extends through the slot 18 so as to pivotally and slidably retain the plate 16 on the flange 15.
  • An eye bolt 20 engaged with a nut 21 secured to one end of the flange 15 is engageable in the notch 17
  • Screw-threadedly engaged with the internal screw threads at the end of the tube 11 is an externally threaded tube 22 to which a lug 23 is secured.
  • the head described is used in conjunction with modular scaffolding in which the uprights of the scaffolding are provided at their upper ends with pins such as those described in our British Pat. No. 1,006,952 and our application No. 49,007 65.
  • the upper end of the 3,606,232 Patented Sept. 20, 1971 prop 25 is provided with a pin 26 which is rotatably engaged by the tube or support member 22.
  • the uprights of the scaifolding therefore act as props to support beams received by the channels presented by the bodies 11 of the heads on the respective uprights.
  • the beams in turn, support the formwork for casting a slab.
  • the head When the slab has set and it is desired to remove the formwork, the head is lowered by turning of the externally threaded tube 22 by engaging a suitable tool in an aperture in the lug 23. Any screws which have been used to secure the plates 12, 16 to the beam are removed, and the eye bolt 20 is then slackened so that the plate 16 can be displaced to the right as viewed in FIG. 2 and turned in a clockwise direction. The beam can then be disengaged from the body 10 by lateral movement of the beam.
  • a head for a formwork prop comprising a support member adapted for rotatable engagement with a vertical pin on the upper end of the prop, a body in screwthreaded engagement with said support member for vertical adjustment of the body by rotation of the support member relative to the body, said body including a web portion, a fixed upstanding flange at one edge of the web portion and a side part mounted on said -web portion for pivotal displacement between an upstanding operative position in which the web portion, the fixed flange and the side part form in combination a channel to receive and support a beam, and an inoperative position in which a beam supported by the head can be removed by lateral displacement of the beam relative to the body further comprising a depending flange on said web portion, a projection on said depending flange, and a bolt threadedly engaged with said depending flange at a position spaced from said projection and in which said side part is formed with a slot extending lengthwise of the plate and slidably receiving said projection and with a notch, with which said slot

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

AN ADJUSTABLE HEAD FOR A FORMWORK PROP FOR USE IN THE CASTING OF CONCRETE SLABS COMPRISES A BODY IN SCREWTHREADED ENGAGEMENT WITH A MEMBER FOR ROTATABLE ENGAGEMENT WITH THE UPPER END OF THE PROP. THE BODY INCLUDES A CHANNEL ONE SIDE OF WHICH CAN BE PIVOTED TO A

POSITION CLEAR OF THE WEB OF THE CHANNEL TO PERMIT REMOVAL OF A BEAM SUPPORTED THEREBY.

Description

Sept. 20, 1971 I YOUNG 3,606,232
ADJUSTABLE HEAD FOR A FORMWORK PROP Filed 001.- 31, 1968 r x 2 O O ZIIIIE?T E V; ZF ZZZ"II 25 D i.
il ll a 5 ,J/IIEENTOR. m
ATTORNEYS United States Patent US. Cl. 248-357 1 Claim ABSTRACT OF THE DISCLOSURE An adjustable head for a formwork prop for use in the casting of concrete slabs comprises a body in screwthreaded engagement with a member for rotatable engagement with the upper end of the prop. The body includes a channel one side of which can be pivoted to a position clear of the web of the channel to permit removal of a beam supported thereby.
This invention relates to an adjustable head for a formwork prop for use in the casting of concrete slabs.
A head in accordance with the invention comprises a body in screw-threaded engagement with a member adapted for rotatable engagement with the upper end of the prop, said body including a portion of channel shaped configuration to receive and support a beam, and one side of said channel being mounted for pivotal displacement to a position such that the beam can be removed by lateral displacement thereof relative to the body.
An example of the invention is shown in the accompanying drawing in which FIGS 1 and 2 are mutually perpendicular elevations of the head.
The head comprises a body consisting of a length of tube 11 secured to a bent metal plate 12. The end of the tube remote from the plate 12 is reduced and internally threaded. The plate 12 has a web portion 13, an upstanding flange 14 at one edge of the web portion 13 and a narrower depending flange 15 at the other edge of the web portion 13.
A further plate 16 is attached to the flange 15 of the plate 12 and is cooperable with the flange 14 to provide a channel for receiving a wooden beam. The plate 16 is formed at one end with a notch 17 and with an elongated slot 18 aligned with the notch 17. A rivet 19 on the flange 15 extends through the slot 18 so as to pivotally and slidably retain the plate 16 on the flange 15. An eye bolt 20 engaged with a nut 21 secured to one end of the flange 15 is engageable in the notch 17 Screw-threadedly engaged with the internal screw threads at the end of the tube 11 is an externally threaded tube 22 to which a lug 23 is secured.
The head described is used in conjunction with modular scaffolding in which the uprights of the scaffolding are provided at their upper ends with pins such as those described in our British Pat. No. 1,006,952 and our application No. 49,007 65. For example, the upper end of the 3,606,232 Patented Sept. 20, 1971 prop 25 is provided with a pin 26 which is rotatably engaged by the tube or support member 22. The uprights of the scaifolding therefore act as props to support beams received by the channels presented by the bodies 11 of the heads on the respective uprights. The beams, in turn, support the formwork for casting a slab. When the slab has set and it is desired to remove the formwork, the head is lowered by turning of the externally threaded tube 22 by engaging a suitable tool in an aperture in the lug 23. Any screws which have been used to secure the plates 12, 16 to the beam are removed, and the eye bolt 20 is then slackened so that the plate 16 can be displaced to the right as viewed in FIG. 2 and turned in a clockwise direction. The beam can then be disengaged from the body 10 by lateral movement of the beam.
The provision of the slot 18 for the pivotal and sliding connection of the plate 16 to the flange 15 enables the plate 16 to be displaced to its out-ofservice position without causing the upper part of the plate 16 to rise to an excessively high level. Thus interference with the formwork during the striking of the beams is avoided.
Having thus described my invention what I claim as new and desire to secure by Letters Patent is:
1, A head for a formwork prop comprising a support member adapted for rotatable engagement with a vertical pin on the upper end of the prop, a body in screwthreaded engagement with said support member for vertical adjustment of the body by rotation of the support member relative to the body, said body including a web portion, a fixed upstanding flange at one edge of the web portion and a side part mounted on said -web portion for pivotal displacement between an upstanding operative position in which the web portion, the fixed flange and the side part form in combination a channel to receive and support a beam, and an inoperative position in which a beam supported by the head can be removed by lateral displacement of the beam relative to the body further comprising a depending flange on said web portion, a projection on said depending flange, and a bolt threadedly engaged with said depending flange at a position spaced from said projection and in which said side part is formed with a slot extending lengthwise of the plate and slidably receiving said projection and with a notch, with which said slot is aligned engageable with said bolt for locking the side part in its upstanding operative position.
References Cited UNITED STATES PATENTS 737,133 8/1903 OBrien 248357 1,556,118 10/1925 Lee 248357X 1,757,321 5/1930 MacDonald 248235X 2,897,013 7/1959 Delp 248235X ROY D. FRAZIER, Primary Examiner F. DOMOTOR, Assistant Examiner US. Cl. X.R.
US772162A 1967-11-07 1968-10-31 Adjustable head for a formwork prop Expired - Lifetime US3606232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB50566/67A GB1245953A (en) 1967-11-07 1967-11-07 Adjustable head for a formwork prop

Publications (1)

Publication Number Publication Date
US3606232A true US3606232A (en) 1971-09-20

Family

ID=10456388

Family Applications (1)

Application Number Title Priority Date Filing Date
US772162A Expired - Lifetime US3606232A (en) 1967-11-07 1968-10-31 Adjustable head for a formwork prop

Country Status (7)

Country Link
US (1) US3606232A (en)
BE (1) BE723482A (en)
DE (1) DE1806912A1 (en)
FR (1) FR1590835A (en)
GB (1) GB1245953A (en)
IE (1) IE32955B1 (en)
NL (1) NL6815764A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921356A (en) * 1973-06-22 1975-11-25 Robert S Hughes System and apparatus for interconnecting structural members, and method of utilizing same
US4125975A (en) * 1975-03-10 1978-11-21 Soble Bernard D Foundation on grade arrangement for manufactured structures and method of installation
USD301655S (en) 1986-05-30 1989-06-13 Otte Dennis E Floor jack attachment for supporting front and rear axles of a truck
US5603187A (en) * 1995-07-05 1997-02-18 Merrin; William R. Watertight system for mounting equipment on roof
US20050188627A1 (en) * 2004-02-27 2005-09-01 Gust. Alberts Gmbh & Co. Kg Ground anchor for securement of lumber products
US20100044548A1 (en) * 2006-11-23 2010-02-25 Artur Schwoerer Prop head for ceiling formwork

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113931484B (en) * 2021-11-01 2022-09-23 中国建筑第五工程局有限公司 Supporting structure for floor construction and installation

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921356A (en) * 1973-06-22 1975-11-25 Robert S Hughes System and apparatus for interconnecting structural members, and method of utilizing same
US4125975A (en) * 1975-03-10 1978-11-21 Soble Bernard D Foundation on grade arrangement for manufactured structures and method of installation
USD301655S (en) 1986-05-30 1989-06-13 Otte Dennis E Floor jack attachment for supporting front and rear axles of a truck
US5603187A (en) * 1995-07-05 1997-02-18 Merrin; William R. Watertight system for mounting equipment on roof
US20050188627A1 (en) * 2004-02-27 2005-09-01 Gust. Alberts Gmbh & Co. Kg Ground anchor for securement of lumber products
US20100044548A1 (en) * 2006-11-23 2010-02-25 Artur Schwoerer Prop head for ceiling formwork
US8262056B2 (en) * 2006-11-23 2012-09-11 Peri Gmbh Prop head for ceiling formwork

Also Published As

Publication number Publication date
NL6815764A (en) 1969-05-09
GB1245953A (en) 1971-09-15
FR1590835A (en) 1970-04-20
DE1806912A1 (en) 1969-08-21
BE723482A (en) 1969-04-16
IE32955L (en) 1969-05-07
IE32955B1 (en) 1974-02-06

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