US3788494A - Apparatus to facilitate the extraction of a room form - Google Patents

Apparatus to facilitate the extraction of a room form Download PDF

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Publication number
US3788494A
US3788494A US00227835A US3788494DA US3788494A US 3788494 A US3788494 A US 3788494A US 00227835 A US00227835 A US 00227835A US 3788494D A US3788494D A US 3788494DA US 3788494 A US3788494 A US 3788494A
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US
United States
Prior art keywords
dolly
frame
wheels
beams
axle
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
US00227835A
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English (en)
Inventor
W Markewitz
F Mischke
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.)
Huennebeck Deutschland GmbH
Original Assignee
Huennebeck GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huennebeck GmbH filed Critical Huennebeck GmbH
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Publication of US3788494A publication Critical patent/US3788494A/en
Anticipated expiration legal-status Critical
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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
    • E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
    • E04G19/003—Arrangements for stabilising the forms or for moving the forms from one place to another

Definitions

  • ABSTRACT An apparatus to facilitate the extraction of a room form which comprises a frame for carrying said room form, said frame carried on a two-axled dolly and being pivotable with respect to said dolly.
  • this invention contemplates an apparatus to facilitate the" extraction of a room form which comprises a frame for carrying said room form, said frame carried on a two-axled dolly and being pivotable with respect to said dolly.
  • an apparatus which facilitates the extraction of a room form used in poured concrete construction.
  • the apparatus comprises a frame, preferably a height-adjusting frame, carried on a two axled dolly.
  • the frame is pivotable with respect to the dolly.
  • the dolly comprises two wheels, to one of which is affixed a supporting means having a flat bottom disposed a'distance above the tangential plane joining the wheels of the dolly on its bottom.
  • the purpose of the supporting means is to provide support for the frame and the form carried thereon during extraction of the apparatus from the area within freshly poured and set concrete.
  • the supporting means has a high coefficient of friction with re spect to concrete and can suitably be a block of wood disposed angularly from one of the wheels, i.e., the wheel first withdrawn from the room.
  • the dolly comprises two beams which are joined or articulated at an axle of one of the wheels of the dolly.
  • the beams are preferably constructed such that one beam carries a socket which supports the frame of the apparatus.
  • the other beam connects the two axes of the wheels of the dolly.
  • the beams form an angle which is variable whereby the height of the entire frame can be regulated.
  • a hydraulic cylinder is utilized containing a connecting rod connected to an upper end of the beam'carrying the socket. Actuation of the hydraulic cylinder raises and lowers the beam with respect to the dolly and thus raises or lowers the frame carried in the socket.
  • the invention comprises a frame having a generally flat top member supported by generally vertical angularly disposed struts carried in the socket, in turn carried by one of the beams articulated to an axle of one of the wheels of the dolly.
  • the frame member and dolly can be utilized together with a second frame member and dolly by disposing the same in general alignment and providing a connecting means between the generally flat members as more fully disclosed below.
  • FIGS. 1 to 4 are side elevations showing the apparatus in four different working positions
  • FIG. 5 is a sectional view taken along line V-V of FIG. 1;
  • FIGS. 6 and 7 show an enlarged scale of the lower part of the apparatus in three different positions.
  • FIG. 8 is a view similar to FIGS. 6 and 7 showing the small front wheel 12 removed from the room, the support member or block 13 in supporting position and wheel within the structure.
  • the illustrated apparatus of the invention consists of a dolly 1 having a socket 5 holding the lower ends of struts 2,3, whose upper ends are attached to a horizontal supporting frame 4. Parts 2 to 5 form a frame for carrying the room form.
  • the dolly 1 consists of two beams 7 parallel to one another and a beam 8 disposed between these beams, the socket 5 being fastened to beam 8 by means of a pivot pin 6.
  • Beams 7 and 8 are joined together at their one end by an axle 9 on which a wheel 10 is mounted.
  • the other, forward ends of the beams 7 are joined together by an axle 11 on each of whose ends there is mounted a wheel 11.
  • Wheels'l2 have a smaller diameter than wheels 10.
  • This block 13 is carried by a plate 14 which is affixed to the beams 7.
  • the plate 14 bears a hydraulic cylinder 15 having a piston whose connecting rod 16 is joined to the front end of beam 8 by a pin 17.
  • FIGS. 7 and 8 show the beam tical part a of the room form.
  • Each of these parts a and consists of a plate whose smooth front side faces the concrete to be formed and has ribs r on its rear side.
  • Part a constitutes the form for one half of the roof e
  • part a constitutes the form for a wall f.
  • two dollies 1 are provided, each of which bears a supporting frame 4. These two supporting frames are joined together by a connecting piece m. The dollies roll on the previously made roof e.
  • the supporting frames are first lowered.
  • the vertical form parts a are on jacks b, the horizontal form parts a lie on the supporting frame 4 and the connecting piece m which joins them together.
  • the supporting frames 4 and hence the form parts a are lifted, and by means of the jacks b the form parts a are raised to the same extent.
  • the room form is lowered by means of the cylinders 15 and the jacks b.
  • the vertical form parts a are backed off slightly from the walls f, by hand for example.
  • the dolly l tilts by the angle [3, whereupon the support member or block 13 lies on the top of floor c and thus prevents any further movement of dolly l as seen in FIGS. 3 and 8.
  • the crane hook h is then low ered, the rear end of the form part a can engage the roof e (FIG. 3).
  • the room form in this position is secured against dropping out of the building.
  • the room form is attached to a cable i hanging from crane hook h such that it is suspended horizontally when the crane hook h is lifted (FIG. 4).
  • both wheels of the dolly could be of the same size.
  • a single frame member can be constructed having a pair of wheels on either size thereof and a frame member, the top member of which can have a size sufficient to cover an entire ceiling. Additional support members or struts can be used and frame systems comprising a plurality of such dollies supporting top members of substantial length can be utilized. It is even possible to provide a mechanized dolly system which supplies power to the wheels of the dolly to facilitate disposition of the dolly in the building and withdrawal of the dolly and frame. including the room forms after the poured concrete has set.
  • An apparatus to facilitate the extraction of a room form comprising a horizontal part and a vertical part which apparatus comprises a frame forcarrying said room form, said frame carried on a two-axled dolly having at least two wheels, said dolly being pivotable with respect to said frame, said frame being heightadjustable in relationship to said dolly, to one of the wheels of said dolly a supporting means being affixed having a flat bottom disposed a distance above the plane on which said wheels may run, whereby the supporting means contacts the said plane when the wheels on the axle leading in the direction of the extraction of the form fall below the level of said plane to cause pivoting of the dolly with respect to the frame to thus arrest the extraction of said dolly, frame and form.
  • said dolly comprises two beams articulated together at the axle of one of the wheels of said dolly, one of said beams pivotally carrying a socket supporting said frame and the other of said beams connecting the axle of one of said wheels to the axle of the other of said. wheels.
  • An apparatus wherein there is provided means varying the angle between said beams whereby to raise or lower said frame.
  • said means comprises a hydraulic cylinder and a connecting rod connected to the upper end of the beam carrying said socket, said cylinder disposed therebeneath.
  • said supporting means comprises a block of a material of high coefficient of friction in relation to concrete which block projects angularly downwardly from the smaller wheel toward the larger wheel.
  • said frame comprises a generally horizontal top member supported by a pair of generally vertical angularly disposed struts, the lower ends of which are carried in said socket.

Landscapes

  • 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)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
US00227835A 1971-02-25 1972-02-22 Apparatus to facilitate the extraction of a room form Expired - Lifetime US3788494A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2108815A DE2108815C3 (de) 1971-02-25 1971-02-25 Vorrichtung zum Herausziehen einer Raumschalung

Publications (1)

Publication Number Publication Date
US3788494A true US3788494A (en) 1974-01-29

Family

ID=5799702

Family Applications (1)

Application Number Title Priority Date Filing Date
US00227835A Expired - Lifetime US3788494A (en) 1971-02-25 1972-02-22 Apparatus to facilitate the extraction of a room form

Country Status (8)

Country Link
US (1) US3788494A (enExample)
JP (1) JPS5224338B1 (enExample)
BE (1) BE778396A (enExample)
DD (1) DD95457A5 (enExample)
DE (1) DE2108815C3 (enExample)
FR (1) FR2127722A5 (enExample)
GB (1) GB1373166A (enExample)
ZA (1) ZA72717B (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902289A (en) * 1973-08-13 1975-09-02 Interform Adjustable truss for concrete construction
US4003541A (en) * 1974-05-20 1977-01-18 Lanier John E Portable decking form
US4462951A (en) * 1983-03-17 1984-07-31 Martin Fred E Method and apparatus for constructing multi-storied concrete buildings
US20070094962A1 (en) * 2003-11-03 2007-05-03 Artur Schwoerer Floor table of a concrete mould and device for displacing a floor table

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845141C2 (de) * 1998-10-01 2001-03-29 Geruestbau Bernburg Gmbh Gerüststütze

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1596868A (en) * 1920-04-13 1926-08-24 Blaw Knox Co Floor form
CH346996A (fr) * 1957-06-17 1960-06-15 Outinord Sa Ets Dispositif pour l'établissement de constructions en matériaux coulés
CH365206A (fr) * 1959-06-26 1962-10-31 Soc Et Et De Realisations De L Matériel mobile à coffrages réglables pour la construction de bâtiments
US3450280A (en) * 1966-08-29 1969-06-17 E P M Intern Method for handling elongated members
US3689019A (en) * 1967-11-28 1972-09-05 Joseph W Ferenc Apparatus for shuttering poured concrete structures

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1596868A (en) * 1920-04-13 1926-08-24 Blaw Knox Co Floor form
CH346996A (fr) * 1957-06-17 1960-06-15 Outinord Sa Ets Dispositif pour l'établissement de constructions en matériaux coulés
CH365206A (fr) * 1959-06-26 1962-10-31 Soc Et Et De Realisations De L Matériel mobile à coffrages réglables pour la construction de bâtiments
US3450280A (en) * 1966-08-29 1969-06-17 E P M Intern Method for handling elongated members
US3689019A (en) * 1967-11-28 1972-09-05 Joseph W Ferenc Apparatus for shuttering poured concrete structures

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902289A (en) * 1973-08-13 1975-09-02 Interform Adjustable truss for concrete construction
US4003541A (en) * 1974-05-20 1977-01-18 Lanier John E Portable decking form
US4462951A (en) * 1983-03-17 1984-07-31 Martin Fred E Method and apparatus for constructing multi-storied concrete buildings
US20070094962A1 (en) * 2003-11-03 2007-05-03 Artur Schwoerer Floor table of a concrete mould and device for displacing a floor table
US7708916B2 (en) 2003-11-03 2010-05-04 Peri Gmbh Device and method for displacing a floor table mold

Also Published As

Publication number Publication date
DE2108815B2 (de) 1978-11-30
DE2108815A1 (de) 1972-09-07
DD95457A5 (enExample) 1973-02-05
GB1373166A (en) 1974-11-06
SU430561A3 (ru) 1974-05-30
BE778396A (fr) 1972-05-16
DE2108815C3 (de) 1979-08-02
ZA72717B (en) 1972-10-25
JPS5224338B1 (enExample) 1977-06-30
FR2127722A5 (enExample) 1972-10-13

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