US3575374A - Device for holding built-in fittings - Google Patents

Device for holding built-in fittings Download PDF

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Publication number
US3575374A
US3575374A US778571A US3575374DA US3575374A US 3575374 A US3575374 A US 3575374A US 778571 A US778571 A US 778571A US 3575374D A US3575374D A US 3575374DA US 3575374 A US3575374 A US 3575374A
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US
United States
Prior art keywords
bell
rim
wall
assembly defined
fitting
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
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US778571A
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English (en)
Inventor
Zoltan Csenyi
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Individual
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/0056—Means for inserting the elements into the mould or supporting them in the mould
    • 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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/061—Non-reusable forms

Definitions

  • This invention relates to a device for temporarily holding built-in fittings on shuttering or falsework used for the erection of concrete buildings or structural parts thereof, having a capsule or bell-shaped hollow body and means for generating a vacuum in the cavity of the hollow body lying against the shuttering.
  • the device according to the invention differs from devices of the type known heretofore in that the hollow body is of nondeformable design and its rim is provided with an elastic sealing body adapted to be laid against the shuttering.
  • the design according to the invention has the advantage that it is not deformed upon pouring of the concrete, but nevertheless permits an airtight fit against the shuttering as a result of the elastic sealing body located on the rim, this sealing bodya part which by experience is subject to fairly rapid wean-being advantageously of interchangeable or replaceable design, which makes practically reuse of the adhesive capsule possible.
  • FIG. 1 is an axial section of a first form of the device for holding built-in fittings on shuttering
  • FIG. 2 is an axial section through a second form of the device for holding built-in fittings on shuttering
  • FIG. 3 shows a detail of FIG. 2
  • FIG. 4 is an axial section through a third form.
  • the device shown for holding built-in fittings on forms, shuttering or falsework as used for the erection of concrete buildings or structural parts thereof includes a bell 1 of rubber or an elastic synthetic material which is lined with a bush 2 of steel or other metal to stabilize its form against pressure from the outside.
  • the elastic sealing edge 4 of hell I intended for fitting against shuttering 3 projects beyond the rim of bush 2 both in the axial direction and in the radial direction of the bell and has on its periphery an annular shoulder 4 as a support for the rim of an equipment box 5 (shown in FIG. 2) serving as a built-in fitting.
  • valve 7 Fitted in the center of the arch of the bell and coaxial with the bell itself is a valve 7 which it is expedient to make interchangeable.
  • the threaded end of valve 7, which projects outwards from hell 1. has screwed thereon a nut 8 which, when tightened, presses the rubber of bell 1 surrounding the valve firmly against the valve body 7.
  • a rubber cap 9 is mounted on the outer end of valve 7 to protect same against fouling.
  • the device as in FIG. 1 is pressed with its sealing rim 4 against the shuttering 3 at the point at which the equipment box 5 (FIG. 2) is to be concreted in.
  • the suction pipe of an aspiration unit is connected to the valve.
  • a vacuum is generated in the cavity 10 of bell 1,2 so that the latter is tightly retained against shuttering 3.
  • the device illustrated in FIG. 2 also has a bell 1 of rubber or an elastic synthetic material which is provided on the inside with a bush 2 of steel or other metal to stabilize its shape.
  • the elastic rim 4 of rubber bell l is adapted to be laid against the inside of shuttering 3; it projects beyond bush 2 in the axial direction and likewise forms an annual shoulder 4' projecting around the periphery like a flange as a support for the rim of equipment box 5.
  • an elastic washer 11 having a perforated sievelike inner portion 12 and an outer ring 13 is placed therebetween.
  • the outer ring has a coating of dry or self-sealing adhesive on one or both sides.
  • washer 11 offers the advantage that it may be used for markin the places at which the holding devices are to be fitted, t ese washers being first adhered to the shuttering 3 at the points in question.
  • washers with an adhesive on one side only they are gummed on sealing rim 4 of rubber bell 1 in order to protect it.
  • a vacuum ball 14 is used for vacuum generation, being placed in the cavity of bell 1,2 before the device is laid against shuttering 3. Distribution of the vacuum through the cavity of the bell with simultaneous pressing of the device against the shuttering is effected by smashing or perforating the ball. This is done with a striker pin 16 which is guided in a hermetically sealed slide inside a guide body 15 which passes coaxially through bell 1,2 and is tightly connected thereto. Upon removal of protective cap 9, pin 16 can be driven in with a hammer and the ball thus smashed or perforated.
  • the device shown in FIG. 4 has a capsule-shaped metal hollow body 21 on whose rim 22 is mounted an interchageable sealing ring 23.
  • This elastic sealing ring as in the example shown in FIG. 1, has an annual shoulder 23' as a support for the metal bell 21 and radially projecting sealing ribs 23".
  • This design permits a perfect fit of the equipment box 5 on the adhering capsule 21,23 and enables the equipment box to be reliably sealed at the same time against the entry of grout.
  • Fitted coaxially with the capsule in the middle of the dome thereof is an insert 24 provided with a valve 7 permitting connection to the suction pipe of an aspiration unit, as in FIG. 1. The air is extracted from the capsule after the device has been fitted on the shuttering.
  • the device described with reference to FIG. 4 may also be designed for accepting a vacuum ball as in FIG. 2 and is then provided with device for smashing or perforating the vacuum ball.
  • An assembly for anchoring a fitting in a concrete body cast in a form having at least one form wall comprising a rigid nondeformable bell having a mouth surrounded by an elastic sealing rim adapted to be applied against an inner surface of said wall; means for evacuating the interior of said bell to retain the same against said wall; a concave body constituting said fitting and rcleasably mounted on said bell; and cooperating means on said bell and said'fitting forming a press-fitted circumferentially sealed junction therebetween whereby said bell can be removed from said concave body by simple withdrawal transverse to said wall upon the anchoring v of the concave body in concrete cast therearound.
  • said bell comprises a metallic shell anchored to said rim
  • said rim is composed of an elastomeric material
  • said cooperating means includes elastically deformable circumferential ridges formed on an external surface of said rim and engageable with the inner surface of said concave body and an outwardly extending annular ledge formed on said rim and abutting an edge of said concave body.
  • said bell comprises an outer elastomeric body formed unitarily with said rim and an inner metal shell lining said elastomeric body and terminating short of said rim.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Civil Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Building Environments (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
US778571A 1967-11-28 1968-11-25 Device for holding built-in fittings Expired - Lifetime US3575374A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1680967A CH469162A (de) 1967-11-28 1967-11-28 Vorrichtung zum Festhalten von Einbaukörpern an Schalungen für die Erstellung von Betonbauten oder Bauteilen davon

Publications (1)

Publication Number Publication Date
US3575374A true US3575374A (en) 1971-04-20

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ID=4420415

Family Applications (1)

Application Number Title Priority Date Filing Date
US778571A Expired - Lifetime US3575374A (en) 1967-11-28 1968-11-25 Device for holding built-in fittings

Country Status (12)

Country Link
US (1) US3575374A (xx)
AT (1) AT282925B (xx)
BE (1) BE724559A (xx)
CH (1) CH469162A (xx)
DE (1) DE1810524A1 (xx)
DK (1) DK118918B (xx)
ES (1) ES360738A1 (xx)
FR (1) FR1593698A (xx)
GB (1) GB1206526A (xx)
NL (1) NL6816521A (xx)
NO (1) NO122555B (xx)
SE (1) SE333055B (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160221229A1 (en) * 2013-10-02 2016-08-04 Bae Systems Plc Flexible tooling
CN106763113A (zh) * 2017-03-06 2017-05-31 中山市元亨家居用品有限公司 一种吸盘及选用这种吸盘的抽真空吊具

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234371B (de) * 1963-07-30 1967-02-16 Stihl Maschf Andreas Motorkettensaege
AT381548B (de) * 1983-08-25 1986-10-27 Rund Stahl Bau Gmbh & Co Einrichtung zum voruebergehenden fixieren von einbaukoerpern an einer schalung
FR2613395B1 (fr) * 1987-04-03 1991-06-07 Soletanche Procede de realisation et coffrage pour joint d'extremite de panneau de paroi moulee
CN108797986B (zh) * 2018-06-07 2021-06-08 永嘉县中宏建设有限公司 混凝土浇筑工作台
CN112324136B (zh) * 2020-10-15 2022-05-17 中铁八局集团第三工程有限公司 一种用于建筑二次结构模板嵌缝的密封条及密封施工方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB587213A (en) * 1944-12-15 1947-04-17 Kay Brothers Ltd Improvements in suction devices capable of securing objects to surfaces
US2694337A (en) * 1951-07-31 1954-11-16 Powers Chemco Inc Flexible sheet support for cameras
US2749097A (en) * 1953-12-07 1956-06-05 Vacuum Concrete Inc Vibrator
US3335994A (en) * 1965-04-27 1967-08-15 Cocito Joe Michael Vacuum holder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB587213A (en) * 1944-12-15 1947-04-17 Kay Brothers Ltd Improvements in suction devices capable of securing objects to surfaces
US2694337A (en) * 1951-07-31 1954-11-16 Powers Chemco Inc Flexible sheet support for cameras
US2749097A (en) * 1953-12-07 1956-06-05 Vacuum Concrete Inc Vibrator
US3335994A (en) * 1965-04-27 1967-08-15 Cocito Joe Michael Vacuum holder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160221229A1 (en) * 2013-10-02 2016-08-04 Bae Systems Plc Flexible tooling
CN106763113A (zh) * 2017-03-06 2017-05-31 中山市元亨家居用品有限公司 一种吸盘及选用这种吸盘的抽真空吊具

Also Published As

Publication number Publication date
NL6816521A (xx) 1969-05-30
SE333055B (xx) 1971-03-01
CH469162A (de) 1969-02-28
ES360738A1 (es) 1970-07-16
DE1810524A1 (de) 1969-07-10
BE724559A (xx) 1969-05-02
GB1206526A (en) 1970-09-23
NO122555B (xx) 1971-07-12
DK118918B (da) 1970-10-19
FR1593698A (xx) 1970-06-01
AT282925B (de) 1970-07-10

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